CN102602828B - Tower crane upper bracket and tower crane with same - Google Patents
Tower crane upper bracket and tower crane with same Download PDFInfo
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- CN102602828B CN102602828B CN201210104987.2A CN201210104987A CN102602828B CN 102602828 B CN102602828 B CN 102602828B CN 201210104987 A CN201210104987 A CN 201210104987A CN 102602828 B CN102602828 B CN 102602828B
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- tower crane
- upper bracket
- cover plate
- topside
- crane upper
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Abstract
The invention provides a tower crane upper bracket upper bracket and a tower crane with the same. The tower crane upper bracket provided by the invention comprises an upper cover plate (210), a lower cover plate (220), an intermediate connecting part, and an upper structure connecting part, wherein the intermediate connecting part is positioned between the upper cover plate (210) and the lower cover plate (220) and is used for connecting the upper cover plate (210) with the lower cover plate (220); the upper structure connecting part is arranged above the upper cover plate (210) and is used for being connected with an upper structure of the tower crane; and the upper structure connecting part comprises four connection units connected with the upper structure, centers of the junction of the four connection units and the upper structure are respectively positioned in four vertexes of a rectangle, and the direction of a long side of the rectangle is the same with that of and an arm support of the tower crane. According to the invention, when the same bending moments can be generated by the upper structure, forces decomposed to each connecting unit on the tower crane upper bracket can be relatively reduced, and thus the structure of the tower crane upper bracket is beneficial to bearing the load.
Description
Technical field
The present invention relates to elevator machinery field, more specifically, relate to a kind of tower crane upper bracket and there is its tower crane.
Background technology
As depicted in figs. 1 and 2, the tower crane upper bracket 100 ' of prior art comprise upper cover plate 110 ', lower cover 120 ', be arranged between upper cover plate 110 ' and lower cover 120 ' for connect the intermediate connecting part 130 ' of the two with for being connected the topside link of the topside of tower crane.Wherein, topside link is four jointings 140 '.The connection cross section of this tower crane upper bracket 100 ' is square, the square that connection dimension shown in Fig. 2 is L ' * L '.Between each jointing 140 ' of this tower crane upper bracket 100 ' and topside, by bearing pin, be connected, and the intermediate connecting part between upper cover plate 110 ' and lower cover 120 ' 130 ' adopts plurality of plates welding to form.
There is following shortcoming in the tower crane upper bracket 100 ' of above prior art:
1, the connection dimension that adopts square sectional, is unfavorable for the stressed of tower crane upper bracket;
2, adopt bearing pin to connect, because bearing pin and pin shaft hole exist gap, owing to being subject to the reverse load of pressure in junction, after work a period of time, pin shaft hole can be out of shape, gap increase, thus easily cause tower crane to rock and abnormal sound;
3, intermediate connecting part adopts the structure design of plurality of plates welding, and processing technology is complicated, wastes material, and is unfavorable for the connection of pivoting support and swing type mechanism bolt.
Summary of the invention
The tower crane that the object of the invention is to provide the rational tower crane upper bracket of a kind of distribution of force and has it.
The invention provides a kind of tower crane upper bracket, comprising: upper cover plate; Lower cover; Intermediate connecting part, between upper cover plate and lower cover to connect upper cover plate and lower cover; Topside link, is arranged on upper cover plate, for being connected with the topside of tower crane; Topside link comprises four linkage units that are connected with topside, and the center of four linkage units and topside junction lays respectively at rectangular four summits, and rectangular long side direction is identical with the jib direction of tower crane.
Further, rectangular long edge lengths is greater than distribution center's circle diameter of the bolt that tower crane upper bracket is connected with the pivoting support of tower crane, and rectangular bond length is less than distribution center's circle diameter.
Further, linkage unit is butt flange, and butt flange and upper cover plate be arranged in parallel.
Further, butt flange comprises center positioning hole.
Further, upper cover plate comprises rectangular slab, and the long direction on limit of rectangular slab is identical with the jib direction of tower crane.
Further, tower crane upper bracket comprises that mount pad is positioned at the outside of the jib of tower crane for the mount pad of the swing type mechanism of tower crane is installed; On the long limit of rectangular slab, have for dodging the recess of swing type mechanism.
Further, rectangular slab has the access opening that is positioned at center; Tower crane upper bracket also comprises passage, is arranged at tower crane upper bracket inner.
Further, intermediate connecting part comprises coaming plate cylindraceous, and the top of coaming plate is connected with the lower surface of upper cover plate, bottom is connected with the upper surface of lower cover.
Further, tower crane upper bracket comprises that mount pad is positioned at the outside of the jib of tower crane for the mount pad of the swing type mechanism of tower crane is installed; On coaming plate, have for dodging the breach of dodging of swing type mechanism.
Further, intermediate connecting part also comprises riser, and riser is positioned at dodges indentation, there and is connected with upper cover plate with coaming plate respectively.
The present invention also provides a kind of tower crane, comprises tower crane upper bracket and topside, and tower crane upper bracket is aforesaid tower crane upper bracket, and tower crane upper bracket and topside are bolted.
According to tower crane upper bracket of the present invention, owing to having adopted rectangular connection cross section, in the situation that the topside that is tower crane by more than tower crane upper bracket part produces identical moment of flexure, because the length dimension along jib direction increases, decompose corresponding the reducing of power of each linkage unit of tower crane upper bracket, thereby be conducive to the stressed of tower crane upper bracket structure.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the tower crane upper bracket of prior art;
Fig. 2 is the semi-sictional view structural representation of the birds-eye view of Fig. 1;
Fig. 3 is the sectional structure schematic diagram according to tower crane upper bracket of the present invention;
Fig. 4 is the semi-sictional view structural representation after the birds-eye view half-twist of Fig. 3;
Fig. 5 is according to the structural representation of the butt flange of tower crane upper bracket of the present invention;
Fig. 6 be in Fig. 5 C-C to sectional structure schematic diagram;
Fig. 7 is according to the structural representation of upper cover plate in tower crane upper bracket of the present invention;
Fig. 8 is according to the structural representation of coaming plate in tower crane upper bracket of the present invention; And
Fig. 9 is the plan structure schematic diagram of Fig. 8.
The specific embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
Topside of the present invention is defined as the structure (not containing upper bracket) of the above part of upper bracket.
As shown in Figure 3 to Figure 4, the tower crane upper bracket of the present embodiment comprises upper cover plate 210, lower cover 220, intermediate connecting part and topside link.Intermediate connecting part is to connect upper cover plate 210 and lower cover 220 between upper cover plate 210 and lower cover 220, and topside link is arranged on upper cover plate 210, for the topside link being connected with the topside of tower crane.Topside link comprises four linkage units that are connected with topside, as shown in Figure 4, the center of four linkage units and topside junction lays respectively at rectangular four summits, the connection cross section that is tower crane upper bracket is that length is the oblong that L, width are B, and rectangular long side direction is identical with the direction of the jib of tower crane.The crane arm direction of direction F1 generation table jib in Fig. 4, and direction F2 represents the equilibrium arm direction of jib.
The present embodiment has been abandoned square sectional connection mode of the prior art, and employing oblong cross section connection mode, along the length dimension L of jib direction, be greater than the width B of vertical jib direction, this kind of topside that form is being tower crane by more than tower crane upper bracket part produces identical moment of flexure, increase because of the length dimension L along jib direction, corresponding the reducing of power that decomposes each linkage unit of upper bracket, thus favourable to the structure stress of tower crane upper bracket.
Preferably, rectangular long edge lengths L is greater than distribution center's circle diameter of the bolt that tower crane upper bracket is connected with the pivoting support of tower crane, and rectangular bond length B is less than this distribution center's circle diameter.
As shown in Figure 3 to Figure 4, the present embodiment has further preferably adopted four butt flanges 240 as linkage unit.Butt flange 240 is set as linkage unit, with bolts when the tower crane upper bracket 200 of the present embodiment is connected with the topside on its top, rather than adopt bearing pin of the prior art to connect.Adopt the connection mode of butt flange and bolt, at bolt, reach after predetermincd tension, Stability Analysis of Structures and reliable, in the time of therefore effectively avoiding adopting bearing pin to connect, because pin-and-hole distortion after work a period of time produces play, affect the problem of using and cause tower crane abnormal sound of tower crane.
In the present embodiment, butt flange 240 arranges abreast with upper cover plate 210.Particularly, butt flange 240 has directly been welded on the upper surface of upper cover plate 210.
As shown in Figure 5 to Figure 6, in the flange main body 241 of butt flange 240 except being provided with four bolts hole 242, centre in flange main body 241 is also provided with center positioning hole 243, when having upper bracket 200 to be connected with topside, this center positioning hole 243 for inserting locating dowel pin so that the two is positioned, is convenient to connect quickly and accurately.
As shown in Figure 7, the upper cover plate in the present embodiment 210 is a block length square plate 211 on the whole.As shown in Figure 4, the long side direction of rectangular slab 211 is identical with the jib direction of tower crane.
As shown in Figure 3 to Figure 4, on the tower crane upper bracket 200 of the present embodiment, be also provided with three for installing back the mount pad 270 of rotation mechanism, mount pad 270 is positioned at the outside of the jib of described tower crane, and the quantity of mount pad 270 can be determined according to the quantity of swing type mechanism.At mount pad 270 center, be provided with swing type mechanism mounting hole 271, wherein swing type mechanism is used for driving the pivoting support that is connected in upper bracket 200 bottoms, thereby drives the upper bracket of tower crane and above structure to rotate.For the corresponding site of avoiding swing type mechanism and upper cover plate 210 is interfered installing or produce during motion, on two long limits of the rectangular slab 211 of upper cover plate 210, respectively have for dodging the recess 213 of the swing type mechanism of tower crane.Wherein the quantity of the shape of recess 213 and the visual swing type mechanism of quantity and position etc. are determined.In the present embodiment, adapt with the mounting hole 271 of three swing type mechanisms, in the centre on the long limit of a side of rectangular slab 211, be provided with a recess 213, the centre on the long limit of opposite side is provided with two recess 213 symmetrically.
In addition, as shown in Figure 3 and Figure 4, tower crane upper bracket also comprises and facilitates current passage 260, and this channel setting is in the inside of tower crane upper bracket 200.Be adapted to the setting of passage 260, the rectangular slab 211 of upper cover plate 210 as shown in Figure 7 also has the access opening 212 that is positioned at centre.
In the present embodiment, intermediate connecting part mainly comprises being coaming plate 230 cylindraceous on the whole, and the top of coaming plate 230 is connected with the lower surface of upper cover plate 210, bottom is connected with the upper surface of lower cover 220.Coaming plate 230 adopts structure cylindraceous, and does not adopt the form of plurality of plates welding of the prior art, makes the structure of intermediate connecting part and processing technology all very simple, and can save production cost.
As shown in Fig. 8 to Fig. 9, at the swing type mechanism of coaming plate 230 and tower crane in the situation that installing or interfere during motion, on coaming plate 230, can correspondingly be provided for dodging tower crane swing type mechanism dodge breach 232.Dodge breach 232 and aim at and install back rotation mechanism and design, its quantity and size wait quantity and the layout depending on swing type mechanism.In the present embodiment, in order to dodge respectively the swing type mechanism of upper bracket 200 both sides, be provided with symmetrically two and dodge breach 232.
In order to compensate, dodge the adverse effect that breach brings, in the present embodiment preferably, intermediate connecting part also comprises riser 250, and riser 250 is positioned at dodges breach 232 places, is connected respectively with coaming plate 230 with upper cover plate 210.
In addition, as shown in Figure 1, for the whole mechanical property of tower crane upper bracket 200 is strengthened, lower cover 220 has adopted integral structure with the adapter plate of the mount pad 270 of swing type mechanism.
Tower crane upper bracket 200 described above is mainly used in the connection of the topside of pivoting support and tower crane in tower crane.
The tower crane of the present embodiment comprises tower crane upper bracket and topside, and wherein, tower crane upper bracket is tower crane upper bracket described above, between tower crane upper bracket and topside, is bolted.
The tower crane of the present embodiment mainly passes to upper bracket by four butt flanges on four angles of tower crane upper bracket and bolt by power by the load of tower crane topside, then by upper bracket, power is passed to pivoting support.Tower crane upper bracket bottom is connected by bolt with pivoting support, and top is connected by bolt with crane arm, and all tie bolts must reach the corresponding predetermincd tension of bolt, needs if desired to adopt special tool to be tightened.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect: adopt oblong cross section connection mode, stressed favourable to upper bracket structure.The connection mode that adopts butt flange and bolt, reaches after predetermincd tension, Stability Analysis of Structures and reliable.Intermediate connecting part mainly adopts coaming plate cylindraceous, and structure and processing technology are simple, saves production cost, and facilitates the connection of pivoting support bolt.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a tower crane upper bracket, comprising:
Upper cover plate (210);
Lower cover (220);
Intermediate connecting part, is positioned between described upper cover plate (210) and described lower cover (220) to connect described upper cover plate (210) and described lower cover (220);
Topside link, is arranged at described upper cover plate (210) upper, for being connected with the topside of described tower crane;
It is characterized in that,
Described topside link comprises four linkage units that are connected with described topside, the center of described four linkage units and described topside junction lays respectively at rectangular four summits, and described rectangular long side direction is identical with the jib direction of described tower crane;
Described upper cover plate (210) comprises rectangular slab (211), and the long direction on limit of described rectangular slab (211) is identical with the jib direction of described tower crane, and described rectangular slab (211) has the access opening (212) that is positioned at center.
2. tower crane upper bracket according to claim 1, it is characterized in that, described rectangular long edge lengths (L) is greater than distribution center's circle diameter of the bolt that described tower crane upper bracket is connected with the pivoting support of described tower crane, and described rectangular bond length (B) is less than described distribution center circle diameter.
3. tower crane upper bracket according to claim 1, is characterized in that, described linkage unit is butt flange (240), and described butt flange (240) be arranged in parallel with described upper cover plate (210).
4. tower crane upper bracket according to claim 3, is characterized in that, described butt flange (240) comprises center positioning hole (243).
5. according to the tower crane upper bracket described in any one in claim 1 to 4, it is characterized in that,
Described tower crane upper bracket comprises the mount pad (270) for the swing type mechanism of described tower crane is installed, and described mount pad (270) is positioned at the outside of the described jib of described tower crane;
On the long limit of described rectangular slab (211), there is the recess (213) for dodging described swing type mechanism.
6. tower crane upper bracket according to claim 5, is characterized in that,
Described tower crane upper bracket also comprises passage (260), is arranged at described tower crane upper bracket inner.
7. according to the tower crane upper bracket described in any one in claim 1 to 4, it is characterized in that, described intermediate connecting part comprises coaming plate cylindraceous (230), and the top of described coaming plate (230) is connected with the lower surface of described upper cover plate (210), bottom is connected with the upper surface of described lower cover (220).
8. tower crane upper bracket according to claim 7, is characterized in that,
Described tower crane upper bracket comprises the mount pad (270) for the swing type mechanism of described tower crane is installed, and described mount pad (270) is positioned at the outside of the jib of described tower crane;
On described coaming plate (230), have and dodge breach (232) for what dodge described swing type mechanism.
9. tower crane upper bracket according to claim 8, it is characterized in that, described intermediate connecting part also comprises riser (250), dodges that breach (232) is located and be connected with described upper cover plate (210) with described coaming plate (230) respectively described in described riser (250) is positioned at.
10. a tower crane, comprise tower crane upper bracket and topside, it is characterized in that, described tower crane upper bracket is according to the tower crane upper bracket described in any one in claim 1 to 9, and described tower crane upper bracket and described topside are bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210104987.2A CN102602828B (en) | 2012-04-11 | 2012-04-11 | Tower crane upper bracket and tower crane with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210104987.2A CN102602828B (en) | 2012-04-11 | 2012-04-11 | Tower crane upper bracket and tower crane with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102602828A CN102602828A (en) | 2012-07-25 |
| CN102602828B true CN102602828B (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210104987.2A Active CN102602828B (en) | 2012-04-11 | 2012-04-11 | Tower crane upper bracket and tower crane with same |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6296419B1 (en) * | 1998-12-21 | 2001-10-02 | Potain (Societe Anonyme) | Device providing a connection between a pivot and a mast structure for tower cranes |
| KR100833970B1 (en) * | 2007-04-27 | 2008-05-30 | 케이엔에프중공업주식회사 | Swivel apparatus for tower crane |
| CN201334327Y (en) * | 2008-12-31 | 2009-10-28 | 长沙中联重工科技发展股份有限公司 | Lower support saddle component for ultra-large type tower crane |
| CN202542745U (en) * | 2012-04-11 | 2012-11-21 | 中联重科股份有限公司 | Upper support of tower crane and tower crane with upper support |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005022819A (en) * | 2003-07-02 | 2005-01-27 | Yoshinaga Kikai Kk | Tower crane support device |
-
2012
- 2012-04-11 CN CN201210104987.2A patent/CN102602828B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6296419B1 (en) * | 1998-12-21 | 2001-10-02 | Potain (Societe Anonyme) | Device providing a connection between a pivot and a mast structure for tower cranes |
| KR100833970B1 (en) * | 2007-04-27 | 2008-05-30 | 케이엔에프중공업주식회사 | Swivel apparatus for tower crane |
| CN201334327Y (en) * | 2008-12-31 | 2009-10-28 | 长沙中联重工科技发展股份有限公司 | Lower support saddle component for ultra-large type tower crane |
| CN202542745U (en) * | 2012-04-11 | 2012-11-21 | 中联重科股份有限公司 | Upper support of tower crane and tower crane with upper support |
Non-Patent Citations (2)
| Title |
|---|
| 姚瑶.某型塔式起重机上下回转支座的焊接工装设计.《机械工程与自动化》.2012,(第1期),第102-104页. |
| 某型塔式起重机上下回转支座的焊接工装设计;姚瑶;《机械工程与自动化》;20120229(第1期);第102-104页 * |
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| Publication number | Publication date |
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| CN102602828A (en) | 2012-07-25 |
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Address after: 415106 Dingcheng City, Changde Province, the town of irrigation district ZOOMLION Creek Industrial Park Patentee after: Zoomlion Heavy Industry Science & Technology Development Co., Ltd. Address before: 410013 Yuelu District, Hunan, silver basin Road, No. 361, No. Patentee before: Zoomlion Heavy Industry Science & Technology Development Co., Ltd. |
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| CP02 | Change in the address of a patent holder |
Address after: 410013 Yuelu District, Hunan, silver basin Road, No. 361, No. Patentee after: Zoomlion Heavy Industry Science & Technology Development Co., Ltd. Address before: 415106 Dingcheng City, Changde Province, the town of irrigation district ZOOMLION Creek Industrial Park Patentee before: Zoomlion Heavy Industry Science & Technology Development Co., Ltd. |