CN102418764A

CN102418764A - Magnetorheological damper with multiple embedded sensors

Info

Publication number: CN102418764A
Application number: CN2011102461526A
Authority: CN
Inventors: 谭和平; 谢宁; 刘强; 谭晓婧
Original assignee: 谢宁
Current assignee: Liu Ancheng
Priority date: 2011-08-25
Filing date: 2011-08-25
Publication date: 2012-04-18
Anticipated expiration: 2031-08-25
Also published as: CN102418764B

Abstract

The invention discloses a magnetorheological damper with multiple embedded sensors. The magnetorheological damper comprises a piston rod, an embedded pipe, a plate type piston and a working cylinder, wherein the longitudinal section of the plate type piston is formed by connecting a semicircle which takes an oblong-shaped short side as the diameter to two symmetrical short sides of an oblong respectively; a magnet exciting coil is wound on the middle part of the plate type piston; one end of the plate type piston is fixed with one end of the piston rod, and the other end of the plate type piston is provided with not less than two blind holes; the shape of the longitudinal section of the inner cavity of the working cylinder is completely the same as that of the longitudinal section of the plate type piston; a magnetorheological liquid flow gap is reserved between the outer peripheral wall of the plate type piston and the inner peripheral wall of the working cylinder; inserts of which the quantity is the same as the quantity of blind holes on the plate type piston are arranged in the working cylinder; a sensor is arranged inside the embedded pipe; a sliding shaft of the sensor is fixed on the top of the blind holes of the plate type piston; and the working cylinder is filled with a magnetorheological liquid.

Description

The MR damper of many built-in sensors

Technical field

The invention belongs to a kind of MR damper, be specifically related to a kind of MR damper of many built-in sensors.

Background technique

Different with traditional damper; MR damper is a kind of intelligent device; But realize MR damper is carried out intelligent control; Then need the support of multiple sensors such as displacement transducer, velocity transducer and acceleration transducer, when the sensor is installed in MR damper outside, then can only obtains some observing and controlling parameters indirectly and be difficult to it is carried out comprehensive intelligent control; Status parameter when moving for directly obtaining MR damper; People also idea at the inner sensor installation of MR damper; Like: one Chinese patent application number be: 200910250813.5 " MR damper of inbuilt displacement sensor "; With one Chinese patent application number be: 200910072980.5 " speed self-sensing magnetorheological damper "; Although they also can built-in sensors,, it is difficult to reflect the MR damper running state owing to having only the position of a built-in sensors comprehensively.

Summary of the invention

To existing MR damper can only a built-in sensor deficiency, the present invention proposes a kind of novel MR damper, that is: a kind of MR damper of many built-in sensors.

Technological scheme of the present invention is following:

A kind of MR damper of many built-in sensors, it comprises piston rod, built-in pipe, board-like piston and clutch release slave cylinder; It is characterized in that: the longitudinal plane of board-like piston is that to connect one respectively at rectangular two symmetrical minor faces be that the semicircle of diameter constitutes with the rectangular minor face; The center line of board-like piston is through the mid point of the connecting line in two semicircle centers of circle of board-like piston; Be wound with field coil at board-like piston middle part; Outside field coil, add protective layer, protective layer flushes with the outer surface of board-like piston, and an end of board-like piston and an end of piston rod are fixed; The other end of board-like piston has and is no less than two blind holes, and the center of circle of blind hole is distributed on the connecting line in two semicircular centers of circle of board-like piston; The longitudinal plane shape of clutch release slave cylinder inner chamber and the longitudinal plane shape of board-like piston are identical, and the longitudinal plane area of clutch release slave cylinder inner chamber leaves the mobile gap of magnetic flow liquid greater than the longitudinal plane area of board-like piston between board-like piston periphery wall and clutch release slave cylinder inner circle wall; Piston rod has center hole, and an end of piston rod and board-like piston are fixed and the shaft axis of piston rod and the central lines of board-like piston, and the other end of piston rod stretches out in clutch release slave cylinder through the seal arrangement and the bearing of clutch release slave cylinder one end; Also be provided with in the clutch release slave cylinder with board-like piston on the identical built-in pipe of blind hole quantity; Be slidingly matched in the blind hole that the seal arrangement and the bearing of one end of built-in pipe through blind hole entrance part on the board-like piston extend into board-like piston and with blind hole on the board-like piston, the other end of built-in pipe is fixed on the clutch release slave cylinder bottom; The degree of depth of blind hole is more than or equal to the length of built-in pipe on the board-like piston, and the longitudinal plane area sum of built-in pipe equates with the longitudinal plane area of piston rod on the board-like piston; Inside at built-in pipe is equipped with sensor, and the sliding axle of sensor is fixed on the top of board-like piston blind hole; In clutch release slave cylinder, be full of magnetic flow liquid; The lighting outlet of field coil leads to outside the clutch release slave cylinder through the center hole of piston rod; Board-like piston and clutch release slave cylinder adopt high magnetic conductive metal material.

The working principle of the MR damper of many built-in sensors is such: when piston rod promotes board-like piston and in clutch release slave cylinder, moves; In in the piston rod entering or the cylinder of deactivating; Built-in pipe also gets into or withdraws from the blind hole of the board-like piston the other end; The change in volume that in clutch release slave cylinder, causes with time in the compensating piston bar turnover clutch release slave cylinder is because the longitudinal plane area sum of built-in pipe equates with the longitudinal plane area of piston rod, so the interior volume of clutch release slave cylinder remains unchanged.

The MR damper of many built-in sensors of the present invention is compared with the MR damper of existing inbuilt displacement sensor; Because the MR damper of many built-in sensors has the position that a plurality of built-in sensors are installed and can directly obtain more Operational Limits, for the intelligent control that realizes MR damper provides condition.

Description of drawings

Fig. 1 is a kind of structural representation of the present invention.

Fig. 2 is the longitudinal plane schematic representation at the A-A place among Fig. 1.

Fig. 3 is the longitudinal plane schematic representation at the B-B place among Fig. 1.

Embodiment

Specify structure of the present invention below in conjunction with accompanying drawing:

Referring to Fig. 1 and Fig. 2 and Fig. 3, this is a kind of concrete structure of the present invention, a kind of MR damper of many built-in sensors, and it comprises piston rod 1, built-in pipe 17, built-in pipe 21 and built-in pipe 30, board-like piston 36, clutch release slave cylinder 5;

The longitudinal plane of board-like piston 36 is that to be connected one respectively be that (center of circle is: Y1) (center of circle is: Y2) constitute (referring to Fig. 2) with semicircle R2 for the semicircle R1 of diameter with rectangular minor face

(or

) to two symmetrical minor faces

Figure 2011102461526100002DEST_PATH_IMAGE001

and the minor face

at rectangular ABCD; Be wound with field coil 9 at the middle part of board-like piston 36; Outside field coil 9, add protective layer 8; Protective layer 8 flushes with the outer surface of board-like piston 36; The mid point X (referring to Fig. 2) of the connecting line of two semicircle center of circle Y1 and the center of circle Y2 of the center line of board-like piston through board-like piston 36; One end of board-like piston 36 and an end of piston rod 1 are fixed; The other end of board-like piston 36 has blind hole 37, blind hole 38 and blind hole 39, and the center of circle of blind hole is distributed on the connecting line of two semicircle center of circle Y1 and center of circle Y2 of board-like piston 36; The longitudinal plane shape of clutch release slave cylinder 5 inner chambers 35 and the longitudinal plane shape of board-like piston 36 are identical; The longitudinal plane area of clutch release slave cylinder 5 inner chambers 35 leaves the mobile gap 7 of magnetic flow liquid greater than the longitudinal plane area of board-like piston 36 between board-like piston 36 periphery walls and clutch release slave cylinder 5 inner circle walls; One end of piston rod 1 and board-like piston 36 are fixing, and the central lines of the shaft axis of piston rod 1 and board-like piston 36, and the other end of piston rod 1 stretches out in clutch release slave cylinder 5 with bearing 3 through the seal arrangement 4 of clutch release slave cylinder 5 one ends; Also be provided with in the clutch release slave cylinder 5 with board-like piston 36 on identical built-in pipe 17, built-in pipe 21 and the built-in pipe 30 of blind hole quantity; Seal arrangement 14 and bearing 13, seal arrangement 16 and bearing 15 and seal arrangement 31 and the bearing 32 of one end of built-in pipe 17, built-in pipe 21 and built-in pipe 30 through blind hole 37, blind hole 38 and blind hole 39 entrance parts on the board-like piston 36 extend in blind hole 37, blind hole 38 and the blind hole 39 of board-like piston 36; Be slidingly matched with blind hole 37, blind hole 38 and the blind hole 39 of board-like piston 36, the other end of built-in pipe 17, built-in pipe 21 and built-in pipe 30 is fixed on clutch release slave cylinder 5 bottoms; The degree of depth of blind hole 37, blind hole 38 and blind hole 39 is more than or equal to the length of built-in pipe 17, built-in pipe 21 and built-in pipe 30 on the board-like piston 36, and the longitudinal plane area sum of built-in pipe 17, built-in pipe 21 and built-in pipe 30 equates with the longitudinal plane area of piston rod 1 on the board-like piston 36; In the inside of built-in pipe 17, built-in pipe 21 and built-in pipe 30 sensor 18, sensor 25 and sensor 28 are installed; The sliding axle 10 of sensor 18, sensor 25 and sensor 28, sliding axle 11 and sliding axle 34 are fixed on the top of board-like piston 36 blind holes 37, blind hole 38 and blind hole 39, and the output signal of sensor 18, sensor 25 and sensor 28 is drawn through signaling line 20, signaling line 23 and signaling line 26; It is outer and be connected with control power supply 15 that the fairlead 6 of the lighting outlet 14 of field coil 9 through board-like piston 36 and the center hole 2 of piston rod 1 lead to clutch release slave cylinder 5; In clutch release slave cylinder 5, be full of magnetic flow liquid 39; Board-like piston 36 adopts high magnetic conductive metal material with clutch release slave cylinder 5.

When the MR damper of many built-in sensors is worked; Piston rod 1 will promote board-like piston 36 and in clutch release slave cylinder 5, move; When piston rod 1 get into or the cylinder 5 of deactivating in the time; Built-in pipe 17, built-in pipe 21 and built-in pipe 30 also get into or withdraw from blind hole 37, blind hole 38 and the blind hole 39 of board-like piston 36 the other ends; The change in volume that in clutch release slave cylinder 5, causes with time in the compensating piston bar 1 turnover clutch release slave cylinder 5 is because the longitudinal plane area sum of built-in pipe 17, built-in pipe 21 and built-in pipe 30 equates with the longitudinal plane area of piston rod 1, so clutch release slave cylinder 5 interior volumes remain unchanged.

Size through adjustment control power supply 15 output currents; Can adjust the magnetic intensity in the gap 7 between board-like piston 36 periphery walls and clutch release slave cylinder 5 inner circle walls; Make the viscosity-modifying of magnetic flow liquid 39 therebetween; Varying in size of the damping force that receives when the board-like piston 36 of piston rod 1 promotion is moved in clutch release slave cylinder 5 makes the board-like MR damper output of built-in rod damping force obtain adjustment.

Claims

1. the MR damper of built-in sensors more than a kind, it comprises piston rod, built-in pipe, board-like piston and clutch release slave cylinder;

It is characterized in that: the longitudinal plane of said board-like piston is that to connect one respectively at rectangular two symmetrical minor faces be that the semicircle of diameter constitutes with the rectangular minor face; The center line of board-like piston is through the mid point of the connecting line in two semicircle centers of circle of board-like piston; Be wound with field coil at board-like piston middle part; Outside field coil, add protective layer, protective layer flushes with the outer surface of board-like piston, and an end of board-like piston and an end of piston rod are fixed; The other end of board-like piston has and is no less than two blind holes, and the center of circle of blind hole is distributed on the connecting line in two semicircular centers of circle of board-like piston;

The longitudinal plane shape of said clutch release slave cylinder inner chamber and the longitudinal plane shape of board-like piston are identical; The longitudinal plane area of clutch release slave cylinder inner chamber leaves the mobile gap of magnetic flow liquid greater than the longitudinal plane area of board-like piston between board-like piston periphery wall and clutch release slave cylinder inner circle wall;

Said piston rod has center hole, and an end of piston rod and board-like piston are fixed and the shaft axis of piston rod and the central lines of board-like piston, and the other end of piston rod stretches out in clutch release slave cylinder through the seal arrangement and the bearing of clutch release slave cylinder one end;

Also be provided with in the said clutch release slave cylinder with board-like piston on the identical built-in pipe of blind hole quantity; Be slidingly matched in the blind hole that the seal arrangement and the bearing of one end of built-in pipe through blind hole entrance part on the board-like piston extend into board-like piston and with blind hole on the board-like piston, the other end of built-in pipe is fixed on the clutch release slave cylinder bottom; The degree of depth of blind hole is more than or equal to the length of built-in pipe on the board-like piston, and the longitudinal plane area sum of built-in pipe equates with the longitudinal plane area of piston rod on the board-like piston; Inside at built-in pipe is equipped with sensor, and the sliding axle of sensor is fixed on the top of board-like piston blind hole; In clutch release slave cylinder, be full of magnetic flow liquid.

2. the MR damper of a kind of many built-in sensors as claimed in claim 1 is characterized in that, the lighting outlet of said field coil leads to outside the clutch release slave cylinder through the center hole of piston rod; Said board-like piston and clutch release slave cylinder adopt high magnetic conductive metal material.