CN110195762B - Hydraulic bushing type vibration damper with variable damping - Google Patents
Hydraulic bushing type vibration damper with variable damping Download PDFInfo
- Publication number
- CN110195762B CN110195762B CN201910404900.5A CN201910404900A CN110195762B CN 110195762 B CN110195762 B CN 110195762B CN 201910404900 A CN201910404900 A CN 201910404900A CN 110195762 B CN110195762 B CN 110195762B
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- sleeve
- rubber
- mounting hole
- rubber sleeve
- concave cavity
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- 238000013016 damping Methods 0.000 title claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 57
- 238000007789 sealing Methods 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 3
- 241000276425 Xiphophorus maculatus Species 0.000 claims 1
- 230000009467 reduction Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 description 7
- 230000006872 improvement Effects 0.000 description 7
- 239000000725 suspension Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
Abstract
The invention discloses a hydraulic bushing type vibration damper with variable damping, which comprises a connecting bracket, wherein a first mounting hole is formed in the left part of the connecting bracket, a second mounting hole is formed in the right part of the connecting bracket, a rubber bushing assembly is arranged in the first mounting hole, a hydraulic bushing assembly is arranged in the second mounting hole, relatively large vibration is generated by a power assembly, the vibration is firstly transmitted to the rubber bushing assembly to realize primary vibration damping, then the vibration is transmitted to the hydraulic bushing assembly through the connecting bracket, the second rubber sleeve deforms, so that the volumes of a first liquid chamber and a second liquid chamber are changed, damping liquid flows back and forth in an annular flow channel between the first liquid chamber and the second liquid chamber, the vibration is dissipated through the annular flow channel, and the secondary vibration damping is realized. The invention is used for vibration reduction of automobiles.
Description
Technical Field
The invention relates to the technical field of automobile engines, in particular to a hydraulic bushing type vibration damper with variable damping.
Background
In the past, the torsion-proof pull rod type suspension that automobile engine adopted is two-stage rubber shock attenuation suspension, vulcanizes into an organic wholely by the rubber damping subassembly at linking bridge and big, small both ends, reaches vibration isolation and the effect of weakening vibration through the rubber damping piece at both ends. The torsion-proof pull rod type suspension is simple in structure, and can play a good role in inhibiting vibration caused by transverse torsion of the power assembly. Since rubber is a high molecular nonlinear material, although it exhibits good elasticity at low frequencies, it is easy to develop a dynamic hardening phenomenon at high frequencies. When an automobile starts and stops, the power assembly can generate relatively large longitudinal torque vibration, and the rubber vibration damper in the traditional suspension structure cannot quickly attenuate the vibration, so that the NVH performance of the whole automobile is affected. Along with the increasing requirements of people on driving comfort and NVH performance of the whole vehicle, the traditional torsion-proof pull rod type suspension can not better meet the demands of people.
Disclosure of Invention
The invention aims to solve the technical problems that: the hydraulic bushing type vibration damper with variable damping has good vibration damping effect and can quickly damp vibration.
The invention solves the technical problems as follows:
the hydraulic bushing type vibration damper with the variable damping comprises a connecting bracket which is arranged in a left-right extending mode, wherein a first mounting hole is formed in the left part of the connecting bracket, a second mounting hole is formed in the right part of the connecting bracket, a rubber bushing assembly is mounted in the first mounting hole, and a hydraulic bushing assembly is mounted in the second mounting hole;
the rubber bushing assembly comprises a first rubber sleeve sleeved in the first mounting hole, the first rubber sleeve and the first mounting hole are coaxially arranged, and a first mounting tube coaxially arranged with the first rubber sleeve is sleeved in the first rubber sleeve;
the hydraulic bushing assembly comprises a fixed sleeve sleeved in a second mounting hole and a second rubber sleeve sleeved in the fixed sleeve, a second mounting pipe coaxially arranged with the second rubber sleeve is arranged in the center of the second rubber sleeve, rubber connecting blocks are connected to the front side and the rear side of the second mounting pipe, the second mounting pipe is connected with the inner side surface of the second rubber sleeve through the two rubber connecting blocks, a first concave cavity and a second concave cavity are respectively arranged on the left side and the right side of the second rubber sleeve, a roundabout annular groove is formed in the outer side surface of the second rubber sleeve between the first concave cavity and the second concave cavity, the first concave cavity, the second concave cavity and the annular groove are recessed inwards, the first concave cavity, the second concave cavity and the inner side surface of the fixed sleeve form a first liquid chamber and a second liquid chamber respectively, the annular groove and the inner side surface of the fixed sleeve form an annular runner, the first liquid chamber and the second liquid chamber are communicated through an annular runner, and damping liquid is filled in the first liquid chamber and the second liquid chamber.
As a further improvement of the above scheme, the second concave cavity is prismatic table-shaped, and the first concave cavity is fan-shaped.
As a further improvement of the scheme, a sleeve-shaped runner retainer is arranged between the inner side surface of the fixed sleeve and the outer side surface of the second rubber sleeve, a first through groove is formed in the position, corresponding to the first concave cavity, of the runner retainer, the first through groove corresponds to the opening of the first concave cavity in shape, a second through groove is formed in the position, corresponding to the opening of the second concave cavity, of the runner retainer, a channel which is recessed inwards is formed in the position, corresponding to the annular groove, of the runner retainer, the shape and the size of the channel correspond to the shape and the size of the annular groove, the runner retainer surrounds the outer side surface of the second rubber sleeve, and the annular groove forms an annular runner with the inner side surface of the fixed sleeve through the channel.
As a further improvement of the scheme, a plurality of second screw holes are formed in the outer side face of the fixed sleeve, the second screw holes are of blind hole structures, a plurality of mounting through holes are formed in the side face of the connecting support, the positions of the second screw holes correspond to the positions of the mounting through holes one by one, fixing screws are arranged in the mounting through holes, and the fixing screws penetrate through the mounting through holes and are in threaded connection with the second screw holes.
As a further improvement of the scheme, a throttling component is arranged in the second liquid chamber, the throttling component comprises a throttling plate frame and a fixing plate frame which are arranged from inside to outside, the throttling plate frame and the fixing plate frame are arc-shaped plates, the shape and the size of the fixing plate frame and the shape and the size of the throttling plate frame correspond to those of the second concave cavity, the fixing plate frame fixedly installs the throttling plate frame on the opening of the first concave cavity, a grille is arranged in the middle of the throttling plate frame, a gap is formed between the grille and the inner side surface of the fixing plate frame, a collision block is connected in the middle of the grille, the inner end of the collision block extends into the second concave cavity, and the outer end of the collision block extends outwards to be in butt joint with the inner side surface of the fixing plate frame.
As a further improvement of the scheme, a rubber sealing frame is arranged between the edge of the inner side of the throttle plate frame and the edge of the outer side of the throttle plate frame, and the throttle plate frame is in butt joint with the throttle plate frame through the rubber sealing frame.
As the further improvement of above-mentioned scheme, the axis of second mounting hole and first mounting hole is vertical setting, the internal diameter of second mounting hole is greater than the internal diameter of first mounting hole the inboard of fixed bolster lower extreme is equipped with the first step of inwards extending, the lower extreme and the first step butt of second rubber sleeve the outside of fixed bolster upper end is equipped with the second step of outwards extending, the fixed bolster passes through the upper surface butt of second step and linking bridge, the fixed bolster upper end is connected with annular end cover, the upper end and the end cover butt of second rubber sleeve.
As a further improvement of the scheme, the end cover is provided with a plurality of connecting holes which are annularly arranged on the end face of the end cover at intervals, the upper end face of the fixing sleeve is provided with a plurality of first screw holes, the positions of the plurality of connecting holes correspond to the positions of the plurality of first screw holes one by one, connecting screws are arranged in the connecting holes, and the connecting screws penetrate through the connecting holes and then are in threaded connection with the first screw holes.
The beneficial effects of the invention are as follows: when the hydraulic bushing is used, the first mounting tube is connected with the power assembly of the automobile engine, the second mounting tube is connected with the auxiliary frame, when the automobile is in a starting and closing process, the power assembly can generate relatively large vibration, the vibration is firstly transmitted to the rubber bushing assembly, the first-stage vibration reduction is realized through the vibration reduction effect of the first rubber sleeve, then the vibration is transmitted to the hydraulic bushing assembly through the connecting support, when the connecting support is affected by the vibration, the second rubber sleeve is deformed, so that the volumes of the first liquid chamber and the second liquid chamber are changed, damping liquid flows back and forth in the annular flow channel between the first liquid chamber and the second liquid chamber, the damping liquid is enabled to realize dissipation of the vibration through the annular flow channel, the second-stage vibration reduction is realized, and because the annular flow channel is designed to be roundabout, the total length of the flow channel is increased under the condition that the whole volume of the hydraulic bushing is not increased, and the damping liquid is enabled to better realize rapid dissipation of the vibration when flowing through the annular flow channel.
The invention is used for vibration reduction of automobiles.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the drawings described are only some embodiments of the invention, but not all embodiments, and that other designs and drawings can be obtained from these drawings by a person skilled in the art without inventive effort.
FIG. 1 is an exploded view of a hydraulic bushing assembly of an embodiment of the present invention;
FIG. 2 is a schematic structural view of a second rubber boot according to an embodiment of the present invention;
FIG. 3 is a schematic view of a flow channel holder according to an embodiment of the present invention;
FIG. 4 is a schematic view of the inside of a throttle plate frame according to an embodiment of the present invention;
FIG. 5 is a schematic view of the outside of a throttle plate frame according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a fixing sleeve according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a connection bracket according to an embodiment of the present invention.
Detailed Description
The conception, specific structure, and technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention based on the embodiments of the present invention. In addition, all coupling/connection relationships mentioned herein do not refer to direct connection of the components, but rather, refer to the fact that a more optimal coupling structure may be formed by adding or subtracting coupling aids depending on the particular implementation. The technical features of the invention can be interactively combined on the premise of no contradiction and conflict.
Referring to fig. 1 to 7, this is an embodiment of the present invention, specifically:
as shown in fig. 1 and 7, the hydraulic bushing type vibration damper with variable damping comprises a connecting bracket 100 extending leftwards and rightwards, a first mounting hole 110 is arranged at the left part of the connecting bracket 100, a second mounting hole 120 is arranged at the right part of the connecting bracket 100, a rubber bushing assembly is arranged in the first mounting hole 110, and a hydraulic bushing assembly 300 is arranged in the second mounting hole 120;
the rubber bushing assembly comprises a first rubber sleeve sleeved in the first mounting hole 110, the first rubber sleeve and the first mounting hole 110 are coaxially arranged, a first mounting tube coaxially arranged with the first rubber sleeve is sleeved in the first rubber sleeve, and the first mounting tube and the first rubber sleeve are integrally vulcanized;
as shown in fig. 2, the hydraulic bushing assembly 300 includes a fixing sleeve 310 sleeved in the second mounting hole 120, and a second rubber sleeve 320 sleeved in the fixing sleeve 310, a second mounting tube 350 coaxially disposed with the second rubber sleeve 320 is disposed in the center of the second rubber sleeve 320, the front side and the rear side of the second mounting tube 350 are both connected with a rubber connection block 321, the second mounting tube 350 is connected with the inner side of the second rubber sleeve 320 through two rubber connection blocks 321, a first cavity 322 and a second cavity 323 are respectively disposed on the left side and the right side of the second rubber sleeve 320, a roundabout annular groove 324 is disposed on the outer side of the second rubber sleeve 320 between the first cavity 322 and the second cavity 323, the first cavity 322, the second cavity 323 and the annular groove 324 are all concave inward, the first cavity 322, the second cavity 323 and the inner side of the fixing sleeve 310 form a first liquid chamber and a second liquid chamber respectively, the annular groove 324 and the inner side of the fixing sleeve 310 form an annular flow passage, and the first liquid chamber and the second liquid chamber are both in liquid-filled chamber through the annular flow passage and the second liquid chamber. The second installation tube 350 is an aluminum core tube, and the second installation tube 350 is vulcanized with the two rubber connection blocks 321 as a whole. When the hydraulic bushing assembly is used, the first mounting tube is connected with the power assembly of the automobile engine, the second mounting tube 350 is connected with the auxiliary frame, when the automobile is in a starting and closing process, relatively large vibration can be generated by the power assembly, the vibration is firstly transmitted to the rubber bushing assembly, primary vibration reduction is achieved through the vibration reduction effect of the first rubber bushing, then the vibration is transmitted to the hydraulic bushing assembly 300 through the connecting support 100, when the connecting support 100 is affected by the vibration, the second rubber bushing 320 deforms, so that the volumes of the first liquid chamber and the second liquid chamber are changed, damping liquid flows back and forth in the annular flow passage between the first liquid chamber and the second liquid chamber, the damping liquid is enabled to realize vibration dissipation through the annular flow passage, secondary vibration reduction is achieved, and the annular flow passage is designed to be roundabout, so that the total length of the flow passage is increased, the rapid vibration dissipation is better when the damping liquid flows through the annular flow passage, the rigidity of the hydraulic bushing assembly 300 is improved, and the vibration reduction performance of the hydraulic bushing assembly is enhanced.
Further as a preferred embodiment, as shown in fig. 2, the second cavity 323 is in a prismatic table shape, and the first cavity 322 is in a fan shape. The prismatic table-shaped second cavity 323 makes the second liquid chamber also be prismatic table-shaped, and the fan-shaped first cavity 322 makes the first liquid chamber also be fan-shaped, and the deformation of the first liquid chamber is different from that of the second cavity 323, so that the pressure difference formed between the first liquid chamber and the second liquid chamber can be rapidly increased.
Further, as shown in fig. 1 and 3, a sleeve-shaped flow path holder 330 is provided between the inner surface of the fixing sleeve 310 and the outer surface of the second rubber sleeve 320, a first through groove 331 is provided at a position of the flow path holder 330 corresponding to the first cavity 322, the first through groove 331 corresponds to the opening of the first cavity 322, a second through groove 332 is provided at a position of the flow path holder 330 corresponding to the second cavity 323, the second through groove 332 corresponds to the opening of the second cavity 323, a recessed channel 333 is provided at a position of the flow path holder 330 corresponding to the annular groove 324, the shape of the channel 333 corresponds to the shape of the annular groove 324, the flow path holder 330 surrounds the outer surface of the second rubber sleeve 320, and the annular groove 324 forms an annular flow path with the inner surface of the fixing sleeve 310 through the channel 333. The runner retainer 330 is vulcanized with the second rubber sleeve 320 into a whole, and mainly improves the rigidity of the annular runner, and avoids the phenomenon of blockage caused by flattening.
Further, as shown in fig. 6 and 7, a plurality of second screw holes 316 are provided on the outer side surface of the fixing sleeve 310, the second screw holes 316 are in a blind hole structure, a plurality of mounting through holes 130 are provided on the side surface of the connecting bracket 100, the positions of the plurality of second screw holes 316 correspond to the positions of the plurality of mounting through holes 130 one by one, fixing screws are provided in the mounting through holes 130, and the fixing screws pass through the mounting through holes 130 and are connected with the second screw holes 316 through threads. This can fix fixed sleeve 310 in second mounting hole 120, avoids fixed sleeve 310 to appear rotating, and simultaneously when hydraulic bushing subassembly 300 appears fatigue failure through long-term operation, when unable meeting former operational requirement, the change of solitary hydraulic bushing subassembly 300 reduces whole damping device replacement cost, has improved work efficiency.
Further as a preferred embodiment, as shown in fig. 1, 4 and 5, a throttle member 340 is installed in the second liquid chamber, the throttle member 340 includes a throttle plate frame 341 and a fixing plate frame 342 that are disposed from inside to outside, the throttle plate frame 341 and the fixing plate frame 342 are arc-shaped plates, the fixing plate frame 342 and the throttle plate frame 341 are both corresponding to the second cavity 323 in shape and size, the fixing plate frame 342 fixedly installs the throttle plate frame 341 on the opening of the first cavity 322, a grille 343 is disposed in the middle of the throttle plate frame 341, a gap is disposed between the grille 343 and the inner side of the fixing plate frame 342, a bump 344 is connected in the middle of the grille 343, the inner end of the bump 344 extends into the second cavity 323, and the outer end of the bump 344 extends outwards to be in abutment with the inner side of the fixing plate frame 342. The throttle grillage 341 with the grille 343 not only realizes the lightweight, simultaneously the grille 343 can play the throttling effect, guarantee that damping fluid flows in order in the second liquid room, prevent to appear the vortex, avoid producing abnormal sound, to the excitation of low frequency big amplitude, the deflection of rubber connecting block 321 is great, cause the pressure differential between second liquid room and the first liquid room great, when the second liquid room warp too big, the space between ram 344 and the second liquid room can change, ram 344 in the second liquid room can effectively reduce second rubber sleeve 320 linear deformation interval, improve the whole rigidity of rubber body. For excitation of high frequency small amplitude, the deformation of the rubber body is small, the pressure difference between the second liquid chamber and the first liquid chamber is small, the grid-shaped collision blocks can play a role in throttling, and an appropriate amount of damping liquid in the second liquid chamber is maintained to enter and exit orderly. The damping size is adjusted according to the excitation condition, so that the device has the characteristics of large damping and large rigidity at low frequency and has the characteristics of small damping and low rigidity at high frequency, thereby better meeting the requirements of people on driving comfort and NVH performance of the whole vehicle, and being capable of providing small damping and small rigidity to attenuate high-frequency small-amplitude vibration of an engine.
Further, as shown in fig. 1, a rubber seal frame 345 is provided between the edge on the inside of the shutter frame 341 and the edge on the outside of the shutter frame 341, and the shutter frame 341 is abutted against the shutter frame 341 by the rubber seal frame 345. When the second rubber sleeve 320 is greatly deformed and presses the throttle plate frame 341 to a certain extent, the rubber sealing frame 345 can play a role of buffering, and rigid impact of the whole hydraulic bushing assembly 300 and the connecting bracket 100 is reduced.
Further as a preferred embodiment, as shown in fig. 1, 6 and 7, the axes of the second mounting hole 120 and the first mounting hole 110 are all vertically arranged, the inner diameter of the second mounting hole 120 is larger than the inner diameter of the first mounting hole 110, a first step 311 extending inwards is arranged at the inner side of the lower end of the fixing sleeve 310, the lower end of the second rubber sleeve 320 is abutted with the first step 311, a second step 312 extending outwards is arranged at the outer side of the upper end of the fixing sleeve 310, the fixing sleeve 310 is abutted with the upper surface of the connecting bracket 100 through the second step 312, an annular end cover 313 is connected at the upper end of the fixing sleeve 310, and the upper end of the second rubber sleeve 320 is abutted with the end cover 313. The end cap 313 can enhance the tightness of the flow channel and the liquid chamber, prevent the overflow of damping liquid in the flow channel under complex working conditions, and improve the service life of the hydraulic bushing assembly 300.
Further, as shown in fig. 1 and 6, the end cover 313 is provided with a plurality of connection holes 314, the plurality of connection holes 314 are arranged on the end surface of the end cover 313 in a ring-shaped interval, the upper end surface of the fixing sleeve 310 is provided with a plurality of first screw holes 315, the positions of the plurality of connection holes 314 are in one-to-one correspondence with the positions of the plurality of first screw holes 315, and connection screws are arranged in the connection holes 314, and are in threaded connection with the first screw holes 315 after passing through the connection holes 314. The assembly of the hydraulic bushing assembly 300 is facilitated and the overall firmness of the hydraulic bushing assembly 300 may also be improved.
While the preferred embodiment of the present invention has been described in detail, the present invention is not limited to the embodiments described above, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the present invention, and these equivalent modifications and substitutions are intended to be included in the scope of the present invention as defined in the appended claims.
Claims (6)
1. A hydraulic bushing type vibration damper with variable damping, which is characterized in that: the hydraulic bushing assembly is characterized by comprising a connecting bracket which is arranged in a left-right extending manner, wherein a first mounting hole is formed in the left part of the connecting bracket, a second mounting hole is formed in the right part of the connecting bracket, a rubber bushing assembly is arranged in the first mounting hole, and a hydraulic bushing assembly is arranged in the second mounting hole;
the rubber bushing assembly comprises a first rubber sleeve sleeved in the first mounting hole, the first rubber sleeve and the first mounting hole are coaxially arranged, and a first mounting tube coaxially arranged with the first rubber sleeve is sleeved in the first rubber sleeve;
the hydraulic bushing assembly comprises a fixed sleeve sleeved in a second mounting hole and a second rubber sleeve sleeved in the fixed sleeve, a second mounting pipe which is coaxially arranged with the second rubber sleeve is arranged in the center of the second rubber sleeve, the front side and the rear side of the second mounting pipe are both connected with rubber connecting blocks, the second mounting pipe is connected with the inner side surface of the second rubber sleeve through two rubber connecting blocks, a first concave cavity and a second concave cavity are respectively arranged on the left side and the right side of the second rubber sleeve, a roundabout annular groove is arranged on the outer side surface of the second rubber sleeve between the first concave cavity and the second concave cavity, the first concave cavity, the second concave cavity and the annular groove are recessed inwards, the first concave cavity and the second concave cavity respectively form a first liquid chamber and a second liquid chamber with the inner side surface of the fixed sleeve, the annular groove and the inner side surface of the fixed sleeve are communicated through annular flow passages, and damping liquid is filled in the first liquid chamber and the second liquid chamber;
a sleeve-shaped runner retainer is arranged between the inner side surface of the fixed sleeve and the outer side surface of the second rubber sleeve, a first through groove is formed in a position, corresponding to the first concave cavity, of the runner retainer, the first through groove corresponds to the opening of the first concave cavity in shape and size, a second through groove is formed in a position, corresponding to the second concave cavity, of the runner retainer, the second through groove corresponds to the opening of the second concave cavity in shape and size, a channel recessed inwards is formed in a position, corresponding to the annular groove, of the runner retainer, the shape and size of the channel correspond to the shape and size of the annular groove, the runner retainer surrounds the outer side surface of the second rubber sleeve, and the annular groove forms an annular runner with the inner side surface of the fixed sleeve through the channel;
the second liquid is indoor installs the throttle component, the throttle component includes throttle grillage and the fixed grillage that sets up outward from interior, throttle grillage and fixed grillage all are arc platy, the shape size of fixed grillage, throttle grillage all corresponds with the shape size of second cavity, fixed grillage is throttle grillage fixed mounting on the opening of first cavity, throttle grillage middle part is equipped with the grid, grid and fixed grillage's medial surface are equipped with the clearance the middle part of grid is connected with the bump, the inner of bump extends in toward the second cavity, the outer end of bump outwards extend to with fixed grillage's medial surface butt.
2. A hydraulic bushing type vibration damping device of claim 1, wherein: the second concave cavity is in a prismatic table shape, and the first concave cavity is in a fan shape.
3. A hydraulic bushing type vibration damping device of claim 1, wherein: the fixing sleeve is characterized in that a plurality of second screw holes are formed in the outer side face of the fixing sleeve, the second screw holes are of blind hole structures, a plurality of mounting through holes are formed in the side face of the connecting support, the positions of the second screw holes correspond to the positions of the mounting through holes one by one, fixing screws are arranged in the mounting through holes, and the fixing screws penetrate through the mounting through holes and are in threaded connection with the second screw holes.
4. A hydraulic bushing type vibration damping device of claim 1, wherein: a rubber sealing frame is arranged between the edge of the inner side of the throttle plate frame and the edge of the outer side of the throttle plate frame, and the throttle plate frame is in butt joint with the throttle plate frame through the rubber sealing frame.
5. A hydraulic bushing type vibration damping device of claim 1, wherein: the axis of second mounting hole and first mounting hole all is vertical setting, the internal diameter of second mounting hole is greater than the internal diameter of first mounting hole the inboard of fixed bolster lower extreme is equipped with the first step of inwards extending, the lower extreme and the first step butt of second rubber sleeve the outside of fixed bolster upper end is equipped with the second step of outwards extending, fixed bolster passes through the upper surface butt of second step and linking bridge, fixed bolster upper end is connected with annular end cover, the upper end and the end cover butt of second rubber sleeve.
6. A variable damping hydraulic bushing type vibration attenuation device according to claim 5, wherein: the end cover is provided with a plurality of connecting holes which are annularly arranged on the end face of the end cover at intervals, the upper end face of the fixing sleeve is provided with a plurality of first screw holes, the positions of the plurality of connecting holes correspond to the positions of the plurality of first screw holes one by one, connecting screws are arranged in the connecting holes, and the connecting screws pass through the connecting holes and are in threaded connection with the first screw holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910404900.5A CN110195762B (en) | 2019-05-16 | 2019-05-16 | Hydraulic bushing type vibration damper with variable damping |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910404900.5A CN110195762B (en) | 2019-05-16 | 2019-05-16 | Hydraulic bushing type vibration damper with variable damping |
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| CN110195762A CN110195762A (en) | 2019-09-03 |
| CN110195762B true CN110195762B (en) | 2024-02-13 |
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| CN114810914B (en) * | 2022-04-26 | 2023-05-05 | 博戈橡胶塑料（株洲）有限公司 | Rubber profile structure for improving fatigue resistance of hydraulic bushing |
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| JP2007147038A (en) * | 2005-11-30 | 2007-06-14 | Hitachi Ltd | Cylinder device |
| CN102207148A (en) * | 2011-03-31 | 2011-10-05 | 重庆长安汽车股份有限公司 | Anti-twisting pull rod type hydraulic mount system for automobile |
| CN202368342U (en) * | 2011-12-29 | 2012-08-08 | 宁波泛亚汽车部件有限公司 | Connecting pull rod |
| CN102729794A (en) * | 2012-06-25 | 2012-10-17 | 安徽中鼎减震橡胶技术有限公司 | Back pull rod suspension of automobile engine |
| CN104912990A (en) * | 2014-03-12 | 2015-09-16 | 广州汽车集团股份有限公司 | Hydraulic torsion resisting pull rod and vehicle |
| CN104924886A (en) * | 2014-03-21 | 2015-09-23 | 广州汽车集团股份有限公司 | Anti-torsion pull bar and automobile |
| CN206830713U (en) * | 2017-05-02 | 2018-01-02 | 浙江零跑科技有限公司 | A kind of rod-pulling type hydraulic mount |
| CN210265655U (en) * | 2019-05-16 | 2020-04-07 | 佛山科学技术学院 | Hydraulic bushing type vibration damper with variable damping |
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| CN110195762A (en) | 2019-09-03 |
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