CN212131171U

CN212131171U - Magnetorheological fluid damper with high tensile resistance

Info

Publication number: CN212131171U
Application number: CN202020898637.8U
Authority: CN
Inventors: 路和; 丁红星; 戴丽莉
Original assignee: Lianyungang Normal College
Current assignee: Lianyungang Normal College
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2020-12-11
Anticipated expiration: 2030-05-26

Abstract

The utility model discloses a magnetorheological suspensions shock absorber with high stretch-proofing performance, including the bottom sprag base, the inboard fixed mounting of bottom sprag base upper end has fixed covering, the buffer block is installed to the inboard of fixed covering, the bottom fixed block is installed to the up end of buffer block, the inboard fixed mounting of bottom fixed block has the piston rod, the damping cylinder body is installed in the outside at piston rod middle part, the damping cylinder body passes through outside support spring with the bottom sprag base and is connected, the inboard fixed mounting of damping cylinder body bottom has the end cover, the up end slidable mounting of end cover has the slip holding ring, the inboard sliding connection of slip holding ring installs the seal installation ring. The utility model discloses a when receiving the outside applied force, the structure carries on spacingly and buffering to the piston rod, can effectively improve holistic tensile ability, and the shock attenuation is effectual, and is sealed stable.

Description

Magnetorheological fluid damper with high tensile resistance

Technical Field

The utility model relates to a shock absorber technical field specifically is a magnetorheological suspensions shock absorber with high stretch-proofing performance.

Background

With the rapid development of social economy, the quantity of automobiles is more and more, an automobile suspension is an important structure for transmitting torque and buffering impact force from the ground, and has an important function for improving the comfort and safety of automobile driving, a shock absorber is an important part of the automobile suspension, has an important influence on the performance of the suspension, and can be divided into a hydraulic cylinder type shock absorber, an electrorheological fluid shock absorber and a magnetorheological fluid shock absorber from a working medium.

However, when the existing magnetorheological fluid damper is subjected to external tension, the structure is easy to deform and lose efficacy, and the damping effect is unstable; therefore, the existing requirements are not met, and a magnetorheological fluid damper with high tensile resistance is provided for the requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a magnetorheological suspensions shock absorber with high stretch-proofing performance to solve the current magnetorheological suspensions shock absorber that proposes in the above-mentioned background art when receiving outside pulling force, the structure easily produces the condition of warp inefficacy, the unstable scheduling problem of shock attenuation effect.

In order to achieve the above object, the utility model provides a following technical scheme: a magnetorheological fluid damper with high tensile resistance comprises a bottom supporting base, wherein a fixed covering is fixedly arranged on the inner side of the upper end of the bottom supporting base, a buffer block is arranged on the inner side of the fixed covering, a bottom end fixing block is arranged on the upper end surface of the buffer block, a piston rod is fixedly arranged on the inner side of the bottom end fixing block, a damping cylinder body is arranged on the outer side of the middle part of the piston rod, and the damping cylinder body is connected with the bottom supporting base through an external supporting spring;

the damping cylinder body is characterized in that a sealing end cover is fixedly arranged on the inner side of the bottom end of the damping cylinder body, a sliding positioning ring is slidably arranged on the upper end face of the sealing end cover, a sealing installation ring is installed on the inner side of the sliding positioning ring in a sliding connection mode, and the sealing installation ring is connected with the piston rod through an internal connection spring.

Preferably, the top end of the vibration reduction cylinder body is fixedly provided with a top sealing cover, and the upper end face of the top sealing cover is fixedly provided with a top connecting seat.

Preferably, the piston main body is fixedly installed on the outer side of the top end of the piston rod, a coil is arranged on the outer side of the piston main body, the upper end and the lower end of the coil are respectively provided with a magnetorheological fluid containing bin, and magnetorheological fluid is filled in the magnetorheological fluid containing bin.

Preferably, the bottom of bottom sprag base is provided with the connector, the bottom that fixed package covered is fixed in the inboard of bottom sprag base through bolted connection, fixed package covers and is connected through sealed the pad with the bottom sprag base.

Preferably, the bottom end fixing block is welded and fixed on the outer side of the bottom end of the piston rod, the buffer block is arranged on the inner side of the bottom end of the fixed bag, and the buffer block is made of hard rubber.

Preferably, the outside of seal installation ring is provided with the seal groove, the slip locating ring passes through the sealing washer with seal installation ring and is connected, end cover passes through the bolted connection and fixes the bottom at the damping cylinder body, end cover passes through the oil blanket with the piston rod and is connected.

Preferably, the top closing cap passes through the screw connection to be fixed at the up end of damping cylinder body, top connecting seat welded fastening is at the up end of top closing cap, the inboard of top connecting seat and top closing cap all is provided with the oil filler point, there is the oil filler point inboard of oil filler point through threaded connection.

Compared with the prior art, the beneficial effects of the utility model are that:

1. when the utility model is subjected to external pressure, the external supporting spring contracts, the bottom end of the piston rod drives the bottom end fixing block to be finely adjusted on the inner side covered by the fixed bag, and then the buffering is carried out through the buffering block, so that the magnetorheological fluid can play a damping force on the piston main body, and further a damping effect is played, the sealing property is good, and the structure is stable;

2. the utility model discloses an outside supporting spring is tensile for can carry on spacing when moving down in the upper end of piston rod to the bottom end fixed block through fixed covering, the internal connection spring shrink, and then can control the piston rod for the elongation of damping cylinder body, outside supporting spring carries out auxiliary stay to the piston rod simultaneously, can effectively improve holistic stretch-proofing performance, and whole stable in use can effectively cushion external force, reduces the condition that the structure atress produced rigid deformation.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

FIG. 2 is a schematic view of the overall cross-sectional structure of the present invention;

FIG. 3 is a schematic view of a partial cross-sectional structure of the bottom support base of the present invention;

fig. 4 is a schematic view of a partial cross-sectional structure of the seal mounting ring of the present invention.

In the figure: 1. a bottom support base; 2. an outer support spring; 3. a vibration damping cylinder body; 4. a top connection seat; 5. covering with a fixed bag; 6. a piston rod; 7. a magnetorheological fluid storage bin; 8. a top cover; 9. a coil; 10. a piston body; 11. a bottom end fixing block; 12. a buffer block; 13. an internal connection spring; 14. a sliding positioning ring; 15. a seal mounting ring; 16. and sealing the end cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 4, the present invention provides an embodiment: a magnetorheological fluid damper with high tensile resistance comprises a bottom supporting base 1, a fixed covering 5 is fixedly arranged on the inner side of the upper end of the bottom supporting base 1, a buffer block 12 is arranged on the inner side of the fixed covering 5, the buffer block 12 is made of hard rubber, the bottom end of a piston rod 6 can be buffered through the buffer block 12, the structure is more stable to use, a bottom end fixing block 11 is arranged on the upper end face of the buffer block 12, the bottom end fixing block 11 is protected and limited through the fixed covering 5, the piston rod 6 can be effectively prevented from falling off easily during stretching, the piston rod 6 is fixedly arranged on the inner side of the bottom end fixing block 11, a damping cylinder body 3 is arranged on the outer side of the middle part of the piston rod 6, and the damping cylinder body 3 is connected with the bottom supporting base;

the inboard fixed mounting of 3 bottoms of damping cylinder body has end cover 16, end cover 16's up end slidable mounting has slip holding ring 14, slip holding ring 14's inboard sliding connection installs seal installation ring 15, seal installation ring 15 is connected through inside connecting spring 13 with piston rod 6, wholly through when receiving the outside applied force, the structure is spacing and the buffering to piston rod 6, can effectively improve holistic tensile ability, and the shock attenuation is effectual, and is sealed stable.

Further, the top end of the vibration reduction cylinder body 3 is fixedly provided with a top sealing cover 8, and the upper end surface of the top sealing cover 8 is fixedly provided with a top connecting seat 4.

Through adopting above-mentioned technical scheme, seal the upper end of damping cylinder body 3 through top closing cap 8, be convenient for keep the leakproofness of structure.

Further, the piston main body 10 is fixedly installed on the outer side of the top end of the piston rod 6, the coil 9 is arranged on the outer side of the piston main body 10, the magnetorheological fluid containing bins 7 are arranged at the upper end and the lower end of the coil 9, and magnetorheological fluid is filled in the magnetorheological fluid containing bins 7.

By adopting the technical scheme, the damping force can be effectively enhanced by arranging the two magnetorheological fluid containing bins 7.

Further, the bottom of the bottom support base 1 is provided with a connector, the bottom of the fixed bag cover 5 is fixed on the inner side of the bottom support base 1 through screw connection, and the fixed bag cover 5 is connected with the bottom support base 1 through a sealing gasket.

Through adopting above-mentioned technical scheme, cover 5 through fixed package and protect and spacing bottom end fixing block 11, can effectively guarantee that piston rod 6 is difficult for droing when tensile.

Further, bottom end fixed block 11 welded fastening is in the outside of 6 bottoms of piston rod, and buffer block 12 sets up the inboard that covers 5 bottoms at fixed package, and the material of buffer block 12 is hard rubber.

Through adopting above-mentioned technical scheme, can cushion the bottom of piston rod 6 through buffer block 12, the structure uses more stably.

Further, a sealing groove is formed in the outer side of the sealing installation ring 15, the sliding positioning ring 14 is connected with the sealing installation ring 15 through a sealing ring, the sealing end cover 16 is fixed at the bottom end of the vibration reduction cylinder body 3 through screw connection, and the sealing end cover 16 is connected with the piston rod 6 through an oil seal.

By adopting the technical scheme, the extension amount of the piston rod 6 relative to the damping cylinder 3 can be controlled by the support of the sealing installation ring 15 and the sliding positioning ring 14.

Further, top closing cap 8 passes through the screwed connection to be fixed at the up end of damping cylinder body 3, and top connecting seat 4 welded fastening all is provided with the oil filler point at the up end of top closing cap 8, top connecting seat 4 and the inboard of top closing cap 8, and there is the oil filler point inboard of oil filler point through threaded connection.

Through adopting above-mentioned technical scheme, be provided with the oil filler point through the inboard at top connecting seat 4, can effectively protect the oil nipple.

Before the magnetorheological fluid storage bin is used, whether the functions of all parts are intact is checked, whether the magnetorheological fluid in the magnetorheological fluid storage bin 7 leaks or not is checked, the bottom support base 1 is connected with the vibration reduction cylinder body 3 through the external support spring 2, two ends of the external support spring 2 are respectively welded and fixed at the upper end of the bottom support base 1 and the outer side of the upper end of the vibration reduction cylinder body 3, a connector is arranged at the bottom end of the bottom support base 1, the top connecting base 4 and the connector are connected with an external structure, the coil 9 is powered on, a magnetic field is formed after the coil 9 is powered on, the characteristics of the magnetorheological fluid arranged on the inner side of the magnetorheological fluid storage bin 7 are changed, when external pressure is applied, the external support spring 2 contracts, the bottom end of the piston rod 6 drives the bottom end fixing block 11 to be finely adjusted on the inner side of the fixing bag cover, the upper end of the piston rod 6 is pressed to drive the piston body 10 to move upwards on the inner side of the damping cylinder 3, furthermore, the magnetorheological fluid can play a role in damping the piston main body 10, thereby playing a role in shock absorption, when the outer supporting spring 2 is stretched when the outer supporting spring is pulled, the bottom end fixing block 11 is welded and fixed at the outer side of the bottom end of the piston rod 6, so that the bottom end fixing block 11 can be limited through the fixing covering 5, when the upper end of the piston rod 6 moves down, the internal connecting spring 13 contracts, and is supported by the seal mounting ring 15 and the sliding positioning ring 14, thereby controlling the extension amount of the piston rod 6 relative to the damping cylinder 3, and the external support spring 2 simultaneously supports the piston rod 6, can effectively improve holistic stretch-proofing performance, whole stable in utilization can effectively cushion the exogenic force, reduces the condition that the structure atress produced rigid deformation.

Claims

1. A magnetorheological fluid damper with high tensile resistance comprises a bottom supporting base (1), and is characterized in that: a fixed covering cover (5) is fixedly installed on the inner side of the upper end of the bottom supporting base (1), a buffer block (12) is installed on the inner side of the fixed covering cover (5), a bottom fixing block (11) is installed on the upper end face of the buffer block (12), a piston rod (6) is fixedly installed on the inner side of the bottom fixing block (11), a vibration damping cylinder body (3) is installed on the outer side of the middle of the piston rod (6), and the vibration damping cylinder body (3) is connected with the bottom supporting base (1) through an external supporting spring (2);

the damping cylinder body (3) is inboard fixed mounting at bottom has end cover (16), the up end slidable mounting of end cover (16) has slip holding ring (14), the inboard sliding connection of slip holding ring (14) installs seal installation ring (15), seal installation ring (15) are connected through internal connection spring (13) with piston rod (6).

2. A magnetorheological fluid damper having high tensile properties in accordance with claim 1 wherein: the damping cylinder body (3) is characterized in that a top sealing cover (8) is fixedly mounted at the top end of the damping cylinder body, and a top connecting seat (4) is fixedly mounted on the upper end face of the top sealing cover (8).

3. A magnetorheological fluid damper having high tensile properties in accordance with claim 2 wherein: the magnetorheological fluid production device is characterized in that a piston main body (10) is fixedly mounted on the outer side of the top end of the piston rod (6), a coil (9) is arranged on the outer side of the piston main body (10), magnetorheological fluid containing bins (7) are arranged at the upper end and the lower end of the coil (9), and magnetorheological fluid is filled in the magnetorheological fluid containing bins (7).

4. A magnetorheological fluid damper having high tensile properties in accordance with claim 1 wherein: the bottom of bottom sprag base (1) is provided with the connector, the inboard at bottom sprag base (1) is fixed through the screw connection to the bottom that fixed package covers (5), fixed package covers (5) and is connected through sealed the pad with bottom sprag base (1).

5. A magnetorheological fluid damper having high tensile properties in accordance with claim 1 wherein: bottom end fixed block (11) welded fastening is in the outside of piston rod (6) bottom, buffer block (12) set up the inboard in fixed package cover (5) bottom, the material of buffer block (12) is hard rubber.

6. A magnetorheological fluid damper having high tensile properties in accordance with claim 1 wherein: the outside of seal installation ring (15) is provided with the seal groove, slip holding ring (14) pass through the sealing washer with seal installation ring (15) and are connected, end cover (16) are fixed in the bottom of damping cylinder body (3) through the screw connection, end cover (16) pass through the oil blanket with piston rod (6) and are connected.

7. A magnetorheological fluid damper having high tensile properties in accordance with claim 2 wherein: top closing cap (8) are fixed at the up end of damping cylinder body (3) through screwed connection, top connecting seat (4) welded fastening is at the up end of top closing cap (8), top connecting seat (4) all are provided with the oil filler point with the inboard of top closing cap (8), there is the oil filler point inboard of oil filler point through threaded connection.