CN113529249B

CN113529249B - Supporting seat for textile machinery

Info

Publication number: CN113529249B
Application number: CN202111089884.9A
Authority: CN
Inventors: 王俊淞
Original assignee: Nantong Dodge Home Textile Co ltd
Current assignee: Nantong Dodge Home Textile Co ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2021-11-26
Anticipated expiration: 2041-09-17
Also published as: CN113529249A

Abstract

The invention discloses a supporting seat for textile machinery, which comprises a base, wherein a buffer mechanism is arranged on the base; buffer gear includes that the symmetry installs the rectangle section of thick bamboo on the base, the lateral wall through rotation of a rectangle section of thick bamboo is connected with the pivot, the first gear of pivot lateral wall fixedly connected with, rectangle section of thick bamboo inside wall sliding connection has first rectangle frame and second rectangle frame, first rectangle frame and second rectangle frame dislocation set, first rectangle frame inside wall is equipped with first rack, second rectangle frame lateral wall is equipped with the second rack, first rectangle frame diapire passes through spring and second rectangle frame roof elastic connection, two install the backup pad on the first rectangle frame jointly, the through-hole has been seted up to the backup pad inner wall. According to the invention, when the textile machinery generates vibration during processing, the first rectangular frame and the second rectangular frame are driven to move oppositely through the supporting plate to extrude the spring, so that kinetic energy is quickly converted into elastic potential energy, and the damping and buffering effects are better.

Description

Supporting seat for textile machinery

Technical Field

The invention relates to the technical field of supporting seats, in particular to a supporting seat for textile machinery.

Background

The textile machinery refers to various mechanical devices required for processing natural fibers or chemical fibers into textiles, and the natural fibers or the chemical fibers are required to be arranged on a supporting seat before being processed by the textile machinery.

Through search, the invention with application number of CN 201811346601.2: the utility model provides a strutting arrangement for spinning machine, through setting up the non slipping spur, prevents to lead to strutting arrangement to take place gliding condition to appear because of the exogenic action, through casing, support column, backup pad, supporting spring, solid fixed ring, pulley, baffle, fixed plate, slide bar, slide, fixed block, thread groove, positive and negative motor, just reversal axle, threaded rod, semicircle ring and wire rope mutually support and have played the effect that makes strutting arrangement be convenient for height-adjusting, but also has some not enoughly: the supporting device only has the function of adjusting the height, and cannot buffer vibration damage generated in the textile machinery processing; the processing of the textile machinery arranged on the supporting seat cannot achieve the effect of matching processing, and the function of the supporting seat is too single; the antiskid block is only utilized to avoid the sliding of the supporting device, and the antiskid effect is poor due to the conventional arrangement.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a support seat for textile machinery.

In order to achieve the purpose, the invention adopts the following technical scheme:

a supporting seat for textile machinery comprises a base, wherein a buffer mechanism is arranged on the base;

buffer gear includes that the symmetry installs the rectangle section of thick bamboo on the base, the lateral wall through rotation of a rectangle section of thick bamboo is connected with the pivot, the first gear of pivot lateral wall fixedly connected with, rectangle section of thick bamboo inside wall sliding connection has first rectangle frame and second rectangle frame, first rectangle frame and second rectangle frame dislocation set, first rectangle frame inside wall is equipped with first rack, second rectangle frame lateral wall is equipped with the second rack, first rack and second rack are connected with first gear engagement respectively, first rectangle frame diapire passes through spring and second rectangle frame roof elastic connection, first rectangle frame diapire and second rectangle frame roof are fixedly connected with spacing post respectively, two install the backup pad jointly on the first rectangle frame, the through-hole of intercommunication about the backup pad inner wall is seted up.

Further, the sound-proof housing is installed to the base roof, pivot lateral wall fixedly connected with shifter, the shifter includes the second gear of fixed connection at the pivot lateral wall, the rectangle section of thick bamboo lateral wall rotates and is connected with the pinion, pinion and second gear meshing connection.

Further, a rectangular cylinder lateral wall fixedly connected with clearance mechanism, clearance mechanism includes the bottom plate of fixed connection at a rectangular cylinder lateral wall, the bottom plate lateral wall runs through sliding connection and has lower rack, lower rack and pinion meshing are connected, base top fixedly connected with perforated plate, perforated plate lateral wall fixedly connected with box body, box body internal seal sliding connection has the piston, piston and lower rack one end fixed connection, a plurality of shower nozzles are installed to the box body roof, the box body diapire runs through the one-way feed liquor pipe of fixedly connected with, the catch basin has been seted up to the base roof.

Further, smooth chamber has been seted up to the base inner wall symmetry, second rectangle frame diapire fixedly connected with push rod, the one end that second rectangle frame was kept away from to the push rod runs through fixedly connected with slider behind rectangle section of thick bamboo diapire and the base inner wall in proper order, slider sealing sliding connection is in smooth intracavity.

Further, the inner wall of the bottom plate is connected with an upper rack in a penetrating and sliding mode, the upper rack is connected with the pinion in a meshed mode, one end, far away from the pinion, of the upper rack is fixedly connected with a support frame, the support frame top wall is fixedly connected with a plurality of carding pipes, a one-way air inlet pipe is arranged on the support frame top wall, one end of the one-way air inlet pipe is fixedly communicated with the plurality of carding pipes, and the other end of the one-way air inlet pipe is fixedly communicated with the bottom wall of the sliding cavity.

Further, through-hole inner wall symmetry fixedly connected with strikes mechanism, strike mechanism includes the rectangular block of symmetry fixed connection at the through-hole inner wall, a plurality of L shape holes have been seted up to the rectangular block inner wall, the downthehole horizontal plane of L shape is connected with first wedge, first wedge is made for magnetic material, the downthehole vertical sliding connection of L shape has the second wedge, second wedge roof fixedly connected with beats the piece, support frame top lateral wall fixedly connected with magnet.

Further, the base bottom lateral wall fixedly connected with straight board, straight inboard wall is equipped with a plurality of sucking discs, the sucking disc passes through the fixed intercommunication of connecting pipe and sliding chamber diapire.

Further, the cavity has been seted up to base inner wall symmetry, the cavity passes through intercommunicating pore and sliding chamber top inner wall intercommunication, cavity and sliding chamber upper portion are equipped with magnetorheological suspensions, slider diapire fixedly connected with first conducting strip, cavity inner wall fixedly connected with second conducting strip, the cavity inner wall is equipped with the electro-magnet.

The invention has the following advantages:

1. when the textile machinery generates vibration during processing, the first rectangular frame and the second rectangular frame are driven to move oppositely through the supporting plate to jointly extrude the spring, so that kinetic energy is quickly converted into elastic potential energy, the damping and buffering effects are better and quicker, and the arranged perforated plate can better reduce noise of noise entering the sound-proof cover;

2. when the second rectangular frame moves reversely, the viscosity of the magnetorheological fluid is increased, the second rectangular frame and the sliding block move up slowly, vibration is reduced, the sliding block pumps negative pressure to the sucking disc through the connecting pipe, so that the sucking disc and the ground are sucked more stably, and the base is prevented from moving left and right due to the action of external force when the textile machine is processed;

3. the carding pipe is used for carding the lower surface of the textile fabric, and the gas is sprayed out of the carding pipe to blow the root of the pile of the textile fabric, so that the carding effect is improved, and the surface treatment quality of the textile fabric is improved;

4. the plurality of beating blocks move upwards in sequence, so that the textile fabric is beaten, and the floating wool adhered to the textile fabric is beaten;

5. the water is spout from the shower nozzle, sprays the superficial hair that drops, increases the contact probability of the superficial hair in water and the air for the collection that drops of superficial hair avoids floating everywhere, influences the environment.

Drawings

Fig. 1 is a schematic structural view of a support base for a textile machine according to the present invention, which is sectioned in a vertical direction;

FIG. 2 is a schematic structural view of the interior of the rear sound-proof cover in a vertical section view of the support base for a textile machine according to the present invention;

FIG. 3 is a schematic view of the structure of a buffer mechanism, a support frame, a combing pipe and the like in a support base for a textile machine according to the present invention;

FIG. 4 is a schematic structural view of the interior of a sliding cavity in a support base for a textile machine according to the present invention;

FIG. 5 is a schematic view of an external appearance of a knocking mechanism in a supporting base for a textile machine according to the present invention;

FIG. 6 is an appearance schematic diagram of a first wedge-shaped block and a second wedge-shaped block in a support base for textile machinery according to the present invention;

fig. 7 is a perspective view of a support base for a textile machine according to the present invention.

In the figure: 1 base, 201 rectangular cylinder, 202 through hole, 203 first gear, 204 first rectangular frame, 205 first rack, 206 second rectangular frame, 207 second rack, 208 spacing column, 209 spring, 210 rotating shaft, 211 supporting plate, 301 second gear, 302 pinion, 401 bottom plate, 402 box, 403 lower rack, 404 unidirectional liquid inlet pipe, 405 spray head, 501 sliding cavity, 502 push rod, 503 slide block, 601 upper rack, 602 supporting frame, 603 combing pipe, 604 unidirectional air inlet pipe, 701 magnet, 702 rectangular block, 703 first wedge block, 704 beating block, 705L-shaped hole, 706 second wedge block, 801 straight plate, sucking

disc

802, 803 connecting pipe, 901 cavity, 902 communicating hole, 903 first conducting strip, 904 second conducting strip, 905 electromagnet, 10 cover, 11 water storage tank, 12 perforated plate.

Detailed Description

Referring to fig. 7, the supporting seat for the textile machinery comprises a base 1, wherein a buffer mechanism is arranged on the base 1;

referring to fig. 1-3, the buffer mechanism includes a rectangular cylinder 201 symmetrically installed on the base 1, a rotating shaft 210 is rotatably connected to the side wall of the rectangular cylinder 201, a first gear 203 is fixedly connected to the side wall of the rotating shaft 210, a first rectangular frame 204 and a second rectangular frame 206 are slidably connected to the inner side wall of the rectangular cylinder 201, the first rectangular frame 204 and the second rectangular frame 206 are arranged in a staggered manner, a first rack 205 is arranged on the inner side wall of the first rectangular frame 204, a second rack 207 is arranged on the side wall of the second rectangular frame 206, the first rack 205 and the second rack 207 are respectively engaged with the first gear 203, the bottom wall of the first rectangular frame 204 is elastically connected with the top wall of the second rectangular frame 206 through a spring 209, a limiting column 208 is fixedly connected to the bottom wall of the first rectangular frame 204 and the top wall of the second rectangular frame 206, a supporting plate 211 is installed on the two first rectangular frames 204 together, a through hole 202 is formed in the inner wall of the supporting plate 211 and is vertically communicated, textile material carries from backup pad 211 upper portion, thereby spinning machine will drive backup pad 211 and shake about in step when processing produces vibrations, thereby backup pad 211 drives first rectangle frame 204 lapse, under the effect of first rack 205, second rack 207 and first gear 203, make second rectangle frame 206 lapse, produce the extrusion to spring 209 jointly, the quick converts kinetic energy into elastic potential energy, the effect of shock attenuation buffering is better more quick.

The soundproof cover 10 is installed to base 1 roof, and pivot 210 lateral wall fixedly connected with shifter, the shifter includes fixed connection at the second gear 301 of pivot 210 lateral wall, and rectangular cylinder 201 lateral wall rotates and is connected with pinion 302, and pinion 302 and second gear 301 meshing are connected, and the diameter ratio of second gear 301 and pinion 302 is N: 1 to the pinion 302 will be driven to rotate fast when the second gear 301 rotates a certain distance, and the first gear 203 drives the rotating shaft 210 to rotate clockwise a certain angle and then rotate counterclockwise a certain angle because the first rectangular frame 204 is oscillating in the up-down direction, so that the second gear 301 also rotates clockwise a certain angle and then rotates counterclockwise a certain angle.

A rectangular cylinder 201 lateral wall fixedly connected with clearance mechanism, clearance mechanism includes the bottom plate 401 of fixed connection at a rectangular cylinder 201 lateral wall, bottom plate 401 lateral wall runs through sliding connection and has lower rack 403, lower rack 403 and pinion 302 meshing connection, 1 top fixedly connected with perforated plate 12 of base, perforated plate 12 lateral wall fixedly connected with box 402, sealed sliding connection has the piston in the box 402, piston and lower rack 403 one end fixed connection, a plurality of shower nozzles 405 are installed to box 402 roof, box 402 diapire runs through the one-way feed liquor pipe 404 of fixedly connected with, catch basin 11 has been seted up to base 1 roof, the submergence of one-way feed liquor pipe 404 bottom is in the water in catch basin 11, pinion 302 drives the lower rack 403 that the meshing connection in the positive and negative rotation and in the horizontal direction reciprocating motion, perforated plate 12 can carry out the amortization to the noise that enters into in the sound-proof housing 10 and fall.

Referring to fig. 4, a sliding cavity 501 is symmetrically formed in the inner wall of the base 1, a push rod 502 is fixedly connected to the bottom wall of the second rectangular frame 206, one end of the push rod 502, which is far away from the second rectangular frame 206, sequentially penetrates through the bottom wall of the rectangular cylinder 201 and the inner wall of the base 1, and is fixedly connected with a sliding block 503, the sliding block 503 is connected in the sliding cavity 501 in a sealing and sliding manner, when the second rectangular frame 206 slides up and down, the sliding block 503 is driven by the push rod 502 to slide up and down synchronously, and the sliding block 503 slides up and down in the sliding cavity 501 in a sealing manner for a certain distance.

Referring to fig. 2, the inner wall of the bottom plate 401 is connected with an upper rack 601 in a penetrating and sliding manner, the upper rack 601 is meshed with the pinion 302 and connected with the pinion 302, one end of the upper rack 601 far away from the pinion 302 is fixedly connected with a support frame 602, the top wall of the support frame 602 is fixedly connected with a plurality of combing pipes 603, the top wall of the support frame 602 is provided with a one-way air inlet pipe 604, one end of the one-way air inlet pipe 604 is fixedly communicated with the plurality of combing pipes 603, the other end of the one-way air inlet pipe 604 is fixedly communicated with the bottom wall of the sliding cavity 501, when the pinion 302 rotates forwards and backwards, the upper rack 601 is driven to synchronously reciprocate horizontally, so that the upper rack 601 drives the support frame 602 and the combing pipes 603 to synchronously reciprocate, and the top end of the combing pipes 603 and the lower surface of the textile fabric slide in an abutting manner.

Referring to fig. 5-6, the inner wall of the through hole 202 is symmetrically and fixedly connected with a knocking mechanism, the knocking mechanism comprises a rectangular block 702 symmetrically and fixedly connected to the inner wall of the through hole 202, a plurality of L-shaped holes 705 are formed in the inner wall of the rectangular block 702, a first wedge block 703 is horizontally and movably connected in the L-shaped holes 705, the first wedge block 703 is made of a magnetic material, a second wedge block 706 is vertically and slidably connected in the L-shaped holes 705, a beating block 704 is fixedly connected to the top wall of the second wedge block 706, and a magnet 701 is fixedly connected to the side wall of the top of the support frame 602 and drives the magnet 701 to synchronously move during continuous reciprocating motion of the support frame 602.

The bottom side wall of the base 1 is fixedly connected with a straight plate 801, the inner wall of the straight plate 801 is provided with a plurality of suckers 802, the suckers 802 are fixedly communicated with the bottom wall of the sliding cavity 501 through connecting pipes 803, when the second rectangular frame 206 slides upwards, the sliding block 503 is driven to slide upwards in a sealing manner, and therefore the connecting pipes 803 of the sliding block 503 suck negative pressure to the suckers 802, the suckers 802 and the ground are more stable in suction, and the base 1 is prevented from moving left and right due to the action of external force during the machining of textile machinery.

The cavity 901 has been seted up to base 1 inner wall symmetry, cavity 901 passes through intercommunicating pore 902 and smooth chamber 501 top inner wall intercommunication, cavity 901 and smooth chamber 501 upper portion are equipped with magnetorheological suspensions, slider 503 bottom wall fixedly connected with first conducting strip 903, smooth chamber 501 inner wall fixedly connected with second conducting strip 904, smooth chamber 501 inner wall is equipped with electro-magnet 905, first conducting strip 903 and second conducting strip 904 electric connection, when slider 503 downward sealed slip, will drive first conducting strip 903 and second conducting strip 904 and offset the slip, thereby electro-magnet 905 circular telegram produces the magnetic field, simultaneously slider 503 inhales the magnetorheological suspensions in the cavity 901 in the smooth chamber 501, and when second rectangle frame 206 reverse motion, electro-magnet 905 has been circular telegram and has produced magnetism this moment, make magnetorheological suspensions viscosity grow, second rectangle frame 206 will slowly shift up, the vibration has been slowed down.

According to the invention, the textile fabric is conveyed from the upper part of the supporting plate 211, so that when the textile machinery generates vibration during processing, the supporting plate 211 is driven to vibrate up and down, the supporting plate 211 drives the first rectangular frame 204 to slide down, the second rectangular frame 206 slides up under the action of the first rack 205, the second rack 207 and the first gear 203, the first rectangular frame 204 and the second rectangular frame 206 jointly extrude the spring 209, the kinetic energy is rapidly converted into the elastic potential energy, and the damping and buffering effects are better and faster.

When the second rectangular frame 206 slides up and down, the push rod 502 drives the sliding block 503 to synchronously slide up and down, the sliding block 503 slides up and down in the sliding cavity 501 in a sealing manner for a certain distance, when the sliding block 503 slides down in a sealing manner, the first conducting strip 903 and the second conducting strip 904 are driven to abut against each other, so that the electromagnet 905 is electrified to generate a magnetic field, meanwhile, the sliding block 503 sucks magnetorheological fluid in the cavity 901 into the sliding cavity 501, when the second rectangular frame 206 moves reversely, the electromagnet 905 is electrified to generate magnetism, the viscosity of the magnetorheological fluid is increased, the second rectangular frame 206 slowly moves upwards to slow vibration, and when the second rectangular frame 206 slides upwards, the sliding block 503 is driven to slide upwards in a sealing manner, so that the sliding block 503 pumps negative pressure to the sucker 802 through the connecting pipe 803, the sucker 802 is more stably attracted to the ground, and the base 1 is prevented from moving left and right when being processed by a textile machine.

The diameter ratio of the second gear 301 to the pinion 302 is N: 1 (N is between 2 and 5), so that the second gear 301 rotates a certain distance to drive the pinion 302 to rotate rapidly, and the first gear 203 drives the rotating shaft 210 and the second gear 301 to rotate clockwise a certain angle repeatedly and then rotate counterclockwise a certain angle due to the vertical oscillation of the first rectangular frame 204.

When the pinion 302 rotates forwards and backwards, the upper rack 601 is driven to synchronously reciprocate in the horizontal direction, so that the upper rack 601 drives the support frame 602 and the carding tube 603 to synchronously reciprocate, the top end of the carding tube 603 is abutted to the lower surface of the textile fabric to continuously comb the textile fabric, meanwhile, the sliding block 503 slides up and down in the sliding cavity 501 in a sealing manner, air is continuously pumped through the one-way air inlet pipe 604, air is sprayed out of the carding tube 603, the root of the pile of the textile fabric is blown, the carding effect is improved, and the surface treatment quality of the textile fabric is improved.

When the supporting frame 602 continuously reciprocates, the magnets 701 are driven to synchronously move, and because the magnets 701 and the first wedge-shaped blocks 703 have the same magnetism and mutually repel each other, the moving magnets 701 push the first wedge-shaped blocks 703 to slide one by one, so that the first wedge-shaped blocks 703 push the second wedge-shaped blocks 706 to slide upwards, further the beating blocks 704 move upwards to beat the textile fabric, and the floating hairs adhered to the textile fabric are beaten.

Pinion 302 drives the lower rack 403 that the meshing is connected after positive and negative rotation and reciprocating motion in the horizontal direction to lower rack 403 drives the piston and seals reciprocating sliding in box body 402, through one-way feed liquor pipe 404 with the water suction in the catch basin 11 in box body 402, then extrudees the water again, spout the water from shower nozzle 405, spray the superficial hair that drops, the height of water can not get wet with the textile fabric on the backup pad 211, thereby increase the contact probability of the superficial hair in water and the air, accelerate the collection that drops of superficial hair, avoid superficial hair to float everywhere, influence the environment.

Claims

1. A supporting seat for textile machinery comprises a base (1), and is characterized in that a buffer mechanism is arranged on the base (1);

the buffer mechanism comprises rectangular cylinders (201) symmetrically arranged on a base (1), the side wall of the rectangular cylinder (201) is connected with a first gear (203) through a rotating shaft (210), the inner side wall of the rectangular cylinder (201) is connected with a first rectangular frame (204) and a second rectangular frame (206) in a sliding way, a first rack (205) is arranged on the inner side wall of the first rectangular frame (204), a second rack (207) is arranged on the side wall of the second rectangular frame (206), the first rack (205) and the second rack (207) are respectively meshed with the first gear (203), the bottom wall of the first rectangular frame (204) is connected with a second rectangular frame (206) through a spring (209), the bottom wall of the first rectangular frame (204) and the top wall of the second rectangular frame (206) are respectively and fixedly connected with a limiting column (208), and a supporting plate (211) is jointly installed on the two first rectangular frames (204);

a rectangle section of thick bamboo (201) lateral wall fixedly connected with clearance mechanism, clearance mechanism includes bottom plate (401) of fixed connection at a rectangle section of thick bamboo (201) lateral wall, bottom plate (401) lateral wall runs through sliding connection and has lower rack (403), lower rack (403) and pinion (302) meshing are connected, base (1) top fixedly connected with perforated plate (12), perforated plate (12) lateral wall fixedly connected with box body (402), box body (402) inner seal sliding connection has the piston, piston and lower rack (403) one end fixed connection, a plurality of shower nozzles (405) are installed to box body (402) roof, box body (402) diapire runs through the one-way feed liquor pipe of fixedly connected with (404), catch basin (11) have been seted up to base (1) roof.

2. The supporting seat for the textile machinery is characterized in that a sound insulation cover (10) is installed on the top wall of the base (1), a conversion mechanism is fixedly connected to the side wall of the rotating shaft (210), the conversion mechanism comprises a second gear (301) fixedly connected to the side wall of the rotating shaft (210), a pinion (302) is rotatably connected to the side wall of the rectangular cylinder (201), and the pinion (302) is meshed with the second gear (301).

3. The supporting seat for the textile machinery as claimed in claim 2, wherein the inner wall of the base (1) is symmetrically provided with sliding cavities (501), the bottom wall of the second rectangular frame (206) is fixedly connected with a push rod (502), one end of the push rod (502) far away from the second rectangular frame (206) sequentially penetrates through the bottom wall of the rectangular cylinder (201) and the inner wall of the base (1) and then is fixedly connected with a sliding block (503), and the sliding block (503) is connected in the sliding cavities (501) in a sealing and sliding manner.

4. The supporting seat for the textile machinery as recited in claim 3, wherein an upper rack (601) is connected to an inner wall of the bottom plate (401) in a penetrating and sliding manner, the upper rack (601) is connected with the pinion (302) in a meshing manner, a supporting frame (602) is fixedly connected to one end, away from the pinion (302), of the upper rack (601), a plurality of combing pipes (603) are fixedly connected to a top wall of the supporting frame (602), a one-way air inlet pipe (604) is arranged on the top wall of the supporting frame (602), one end of the one-way air inlet pipe (604) is fixedly communicated with the plurality of combing pipes (603), and the other end of the one-way air inlet pipe (604) is fixedly communicated with a bottom wall of the sliding cavity (501).

5. The supporting seat for the textile machinery as recited in claim 4, wherein the inner wall of the supporting plate (211) is provided with a through hole (202) which is communicated with the upper part and the lower part, the inner wall of the through hole (202) is symmetrically and fixedly connected with a knocking mechanism, the knocking mechanism comprises a rectangular block (702) which is symmetrically and fixedly connected with the inner wall of the through hole (202), the inner wall of the rectangular block (702) is provided with a plurality of L-shaped holes (705), a first wedge block (703) is horizontally and movably connected in the L-shaped holes (705), the first wedge block (703) is made of a magnetic material, a second wedge block (706) is vertically and slidably connected in the L-shaped holes (705), a beating block (704) is fixedly connected to the top wall of the second wedge block (706), and a magnet (701) is fixedly connected to the top side wall of the supporting frame (602).

6. A supporting seat for textile machinery as claimed in claim 5, wherein a straight plate (801) is fixedly connected to the bottom side wall of the base (1), a plurality of suction cups (802) are arranged on the inner wall of the straight plate (801), and the suction cups (802) are fixedly communicated with the bottom wall of the sliding cavity (501) through connecting pipes (803).

7. The supporting seat for the textile machinery as recited in claim 6, wherein the inner wall of the base (1) is symmetrically provided with cavities (901), the cavities (901) are communicated with the inner wall of the top of the sliding cavity (501) through communicating holes (902), magnetorheological fluid is arranged on the upper portions of the cavities (901) and the sliding cavity (501), the bottom wall of the sliding block (503) is fixedly connected with a first conducting strip (903), the inner wall of the sliding cavity (501) is fixedly connected with a second conducting strip (904), and the inner wall of the sliding cavity (501) is provided with an electromagnet (905).