CN202203323U

CN202203323U - Double-rod plate type magnetorheological damper

Info

Publication number: CN202203323U
Application number: CN2011203042436U
Authority: CN
Inventors: 谭和平; 谢宁; 刘强; 谭晓婧
Original assignee: 谭晓婧
Priority date: 2011-08-19
Filing date: 2011-08-19
Publication date: 2012-04-25
Anticipated expiration: 2021-08-19

Abstract

The utility model discloses a double-rod plate type magnetorheological damper which comprises a piston rod, a plate type piston, a working cylinder and a compensation air bag. The longitudinal section of the plate type piston is formed by respectively connecting a half circle taking a short edge of a rectangle as the diameter with two symmetrical short edges of the rectangle, a magnetic exciting coil is wound around the middle part of the plate type piston, the shape of the longitudinal section of an inner cavity of the working cylinder is totally the same as the shape of the longitudinal section of the plate type piston, the longitudinal section area of the inner cavity of the working cylinder is larger than that of the plate type piston, a magnetorheological liquid flowing gap is left between the peripheral wall of the plate type piston and the inner circumferential wall of the working cylinder, one end of the piston rod is fixed at one end of the plate type piston, the other end of the piston rod is extended out of the interior of the working cylinder through a sealing device at one end of the working cylinder and a bearing, an outgoing line of the magnetic exciting coil is led out of the working cylinder through a central hole of the piston rod, and the compensation air bag is fixed at the bottom of the working cylinder.

Description

The board-like MR damper of single rod

Technical field

The utility model belongs to a kind of MR damper, is specifically related to the board-like MR damper of a kind of single rod.

Background technique

MR damper is as a kind of intelligent vibration damping device; The size of its damping force can be carried out remote stepless through the control power supply and regulated; Mostly existing single outstretch pole magnetorheological damper is the cylinder bodily form, and tubular single outstretch pole magnetorheological damper is owing to diameter greatly is difficult to the working environment that is applicable to that some are narrow, and the board-like MR damper of single rod of the utility model is compared with common single outstretch pole magnetorheological damper; Because the profile of the board-like MR damper of single rod is a pancake; Therefore, under the clutch release slave cylinder condition identical, that is: under the identical situation of output damping force with effective work area between the piston; More be applicable to the working environment that some are narrow, expanded the application area of single outstretch pole magnetorheological damper.

Summary of the invention

Be difficult to be applicable to common cylindrical magnetic rheological damper and the deficiency of narrow working environment the utility model provides a kind of novel MR damper, that is: the board-like MR damper of a kind of single rod.

The technological scheme of the utility model is following:

The board-like MR damper of a kind of single rod, it comprises piston rod, board-like piston, clutch release slave cylinder and compensation air bag; Wherein, 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 shaft axis 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 in board-like middle of piston, outside field coil, add protective layer, protective layer flushes with the periphery wall 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 is fixed on the board-like piston and is coaxial with 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, in clutch release slave cylinder, has been 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; The compensation air bag is fixed on the bottom of clutch release slave cylinder and board-like piston and clutch release slave cylinder adopt high magnetic conductive metal material.

Owing to taked technique scheme; Make the profile of clutch release slave cylinder become pancake by traditional cylindrical change; The thickness of this pancake clutch release slave cylinder can guarantee under the constant condition of the effective work area between clutch release slave cylinder and the piston, to adjust and satisfy the demand, and therefore, the board-like MR damper of single rod of the utility model is compared with common single outstretch pole magnetorheological damper; Be applicable to narrow working environment more, expanded the The Applications of Magnetorheological Dampers scope thus.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model.

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 the structure of the utility model below in conjunction with accompanying drawing:

Referring to Fig. 1, Fig. 2 and Fig. 3, this is a kind of concrete structure of the utility model, the board-like MR damper of a kind of single rod, the compensation air bag 11 that it comprises piston rod 1, board-like piston 13, clutch release slave cylinder 5 and is filled with pressurized air 12; The middle part of board-like piston 13 is wound with field coil 9, outside field coil 9, adds protective layer 8, and protective layer 8 flushes with the periphery wall of board-like piston 13; In clutch release slave cylinder 5, be full of magnetic flow liquid 10; Board-like piston 13 adopts high magnetic conductive metal material with clutch release slave cylinder 5; The longitudinal plane of board-like piston 13 is that to be connected one respectively be that (center of circle is: Y1) (center of circle is: Y2) constitute (referring to Fig. 2), the mid point X (referring to Fig. 3) of the connecting line of two semicircle center of circle Y1 and the center of circle Y2 of the shaft axis of board-like piston 13 through board-like piston 13 with semicircle R2 for the semicircle R1 of diameter with rectangular minor face

(or

) to two symmetrical minor faces

and the minor face

at rectangular ABCD; The longitudinal plane shape of the inner chamber 16 of clutch release slave cylinder 5 and the longitudinal plane shape of board-like piston 13 are identical; And the longitudinal plane area of the inner chamber 16 of clutch release slave cylinder 5 leaves the mobile gap 7 of magnetic flow liquid greater than the longitudinal plane area of board-like piston 13 between board-like piston 13 periphery walls and clutch release slave cylinder 5 inner circle walls; One end of piston rod 1 and an end of board-like piston 13 are fixed, and the other end of piston rod 13 stretches out in clutch release slave cylinder 5 with bearing 3 through the seal arrangement 4 of clutch release slave cylinder 5 one ends; 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 13 and the center hole 2 of piston rod 13 lead to clutch release slave cylinder 5; Compensation air bag 11 is fixed on the bottom of clutch release slave cylinder 5.

The board-like MR damper working condition of single rod is such: when piston rod 1 promotes board-like piston 13 to the right and in clutch release slave cylinder 5, moves; Board-like piston 13 will push the magnetic flow liquid 10 on clutch release slave cylinder 5 right sides; Magnetic flow liquid 10 in the clutch release slave cylinder 5 is flowed to clutch release slave cylinder 5 left ends from clutch release slave cylinder 5 right-hand members through the gap 7 between board-like piston 13 periphery walls and the clutch release slave cylinder inner circle wall; When control power supply 15 not during output current; Field coil 9 no electric circuits at board-like piston 13 middle parts; Magnetic intensity in the gap 7 between board-like piston 13 periphery walls and the clutch release slave cylinder inner circle wall is zero, and when piston rod 1 promoted board-like piston 13 to the right and in clutch release slave cylinder 5, moves, suffered damping force was less; Behind control power supply 15 output currents; Field coil 9 energisings at board-like piston 13 middle parts; To produce bigger magnetic intensity in the gap 7 between board-like piston 13 periphery walls and clutch release slave cylinder 5 inner circle walls; At this moment, when piston rod 1 promoted board-like piston 13 to the right and in clutch release slave cylinder 5, moves, suffered damping force was bigger; Therefore; Be input to the size of electric current in the field coil 9 at board-like piston 13 middle parts through adjustment control power supply 15; Can make the damping force of the board-like MR damper of single rod output controlled, and cause that the volume-variation in the clutch release slave cylinder 5 will be compensated by the compensation air bag 11 that is positioned at clutch release slave cylinder 5 bottoms in the piston rod 1 turnover clutch release slave cylinder 5 time.Situation when piston rod 1 promotes board-like piston 13 left and in clutch release slave cylinder 5, moves is not being given unnecessary details with similar here.

Claims

1. board-like MR damper of single rod, it comprises piston rod, board-like piston, clutch release slave cylinder and compensation air bag; 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 shaft axis 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 in board-like middle of piston; Outside field coil, add protective layer, protective layer flushes with the periphery wall 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; 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; Said piston rod has center hole, and an end of piston rod is fixed on the board-like piston and is coaxial with 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, in clutch release slave cylinder, has been full of magnetic flow liquid.

2. the board-like MR damper of a kind of single rod 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 compensation air bag is fixed on the bottom of clutch release slave cylinder; Said board-like piston and clutch release slave cylinder adopt high magnetic conductive metal material.