CN108150593A - A kind of hydraulic bushing - Google Patents
A kind of hydraulic bushing Download PDFInfo
- Publication number
- CN108150593A CN108150593A CN201611166938.6A CN201611166938A CN108150593A CN 108150593 A CN108150593 A CN 108150593A CN 201611166938 A CN201611166938 A CN 201611166938A CN 108150593 A CN108150593 A CN 108150593A
- Authority
- CN
- China
- Prior art keywords
- rubber
- sleeve
- hydraulic bushing
- mandrel
- rubber bodies
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- 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
- F16F13/08—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 the plastics spring forming at least a part of the wall of the fluid chamber of the damper
- F16F13/14—Units of the bushing type, i.e. loaded predominantly radially
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
- F16C32/0633—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being retained in a gap
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- 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
- F16F13/08—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 the plastics spring forming at least a part of the wall of the fluid chamber of the damper
- F16F13/14—Units of the bushing type, i.e. loaded predominantly radially
- F16F13/1481—Units of the bushing type, i.e. loaded predominantly radially characterised by features of plastic springs, e.g. presence of cavities or stiffeners; characterised by features of flexible walls of equilibration chambers, i.e. membranes
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- 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
- F16F13/08—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 the plastics spring forming at least a part of the wall of the fluid chamber of the damper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/38—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
- B61F5/42—Adjustment controlled by buffer or coupling gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/50—Other details
-
- 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
- F16F13/08—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 the plastics spring forming at least a part of the wall of the fluid chamber of the damper
- F16F13/14—Units of the bushing type, i.e. loaded predominantly radially
- F16F13/1445—Units of the bushing type, i.e. loaded predominantly radially characterised by method of assembly, production or treatment
-
- 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
- F16F13/08—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 the plastics spring forming at least a part of the wall of the fluid chamber of the damper
- F16F13/14—Units of the bushing type, i.e. loaded predominantly radially
- F16F13/1463—Units of the bushing type, i.e. loaded predominantly radially characterised by features of passages between working chambers
-
- 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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/16—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material
- F16F15/165—Sealing arrangements
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- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
-
- 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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
-
- 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
- F16F2230/00—Purpose; Design features
- F16F2230/06—Fluid filling or discharging
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Combined Devices Of Dampers And Springs (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Sealing Devices (AREA)
- Springs (AREA)
Abstract
The present invention relates to a kind of hydraulic bushing, including mandrel;The first rubber bodies being set on the outer wall of mandrel, diametrically opposite compartment sets two sap cavities axially penetrated through in the first rubber bodies;The sleeve being set on the outer wall of the first rubber bodies is set fluted on the wall of sleeve;The housing being set on the outside of sleeve, wherein, housing forms the runner for connecting two sap cavities with sleeve in groove, which helps to realize stablizing for track train and travel, and can reduce the abrasion of wheel and track in negotiation of bends state.
Description
Cross reference to related applications
This application claims enjoy in the Chinese patent Shen of entitled " a kind of hydraulic bushing " submitted on December 02nd, 2016
The China for entitled " hydraulic bushing and the track train " that please be submitted on December 02nd, CN201611096400.2 and 2016 is specially
The priority of profit application CN201611095592.5, all the contents of the application are herein incorporated by reference.
Technical field
The present invention relates to track train technical field, more particularly to a kind of hydraulic bushing.
Background technology
The operation of track train can be simply divided into two states, the first is straight-going state, and second is negotiation of bends
State.In the prior art, wheel is connected with bogie generally by means of rubber pivoted arm, so that in straight-going state, row
Vehicle is travelled along rail fast and stable;In negotiation of bends state, train can be along the smooth steering of track.
In order to enable the train stable operation in straight-going state, rubber pivoted arm is usually configured with to larger rigidity
Value.But this rubber pivoted arm with greater stiffness can cause in negotiation of bends state, the serious mill of wheel and track
Damage, so as to increase the operation cost of train.
Invention content
Regarding to the issue above part or all of, the present invention proposes a kind of hydraulic bushing.It is served as a contrast by the hydraulic pressure of the present invention
After set is used on track train, it can not only ensure that train is stablized in straight-going state and move ahead, and can reduce in bend row
Sail the abrasion of wheel and track in state.
Hydraulic bushing according to the present invention, including:
Mandrel,
The first rubber bodies being set on the outer wall of mandrel, diametrically opposite compartment sets two in the first rubber bodies
The sap cavity axially penetrated through,
The sleeve being set on the outer wall of the first rubber bodies, set on the wall of sleeve it is fluted,
The housing being set on the outside of sleeve,
Wherein, housing forms the runner for connecting two sap cavities with sleeve in groove.
In one embodiment, mandrel has First terrace so that mandrel structure is straight more than both ends as middle part diameter
The multi-diameter shaft of diameter, the first rubber bodies are arranged on the interlude of mandrel, and are arranged respectively with the second rubber bodies at the both ends of mandrel
With the seal assembly of the first ligand, the second rubber bodies are contacted with the axial end face and First terrace of sleeve, the first ligand
For two sap cavities of sealed isolation on the same end.
In one embodiment, the edge face structure of the first rubber bodies has circumferentially distributed annular groove, the first rubber bodies,
Two rubber bodies, sleeve and the first ligand form auxiliary sap cavity at annular groove.
In one embodiment, seal assembly further includes rigid support ring assemblies, and support ring assemblies, which have, is socketed in core
Mounting ring on axis and the bulge loop projected radially outward by the outer wall of mounting ring, wherein, the second rubber bodies cladding bulge loop formula is arranged
In the outside of mounting ring.
In one embodiment, there is the second rubber bodies at least one rubber peak potion to coordinate with housing interference type.
In one embodiment, on axial direction from inside to outside, the second rubber bodies sequentially form the first rubber peak potion,
Second rubber peak potion and third rubber peak potion, the first rubber peak potion and third rubber peak potion coordinate with housing interference type, and second
Rubber peak potion is opposite with bulge loop position, rigid first pad coaxial with mounting ring of clad type setting at the first rubber peak potion
Ring, the first gasket ring are close to sleeve and opposite with the end face of sleeve.
In one embodiment, the radial extension that housing includes the outer body of tubular and connect with outer body, diameter
It is formed by being pressed to extension and is contacted with seal assembly.
In one embodiment, second step face is set to cause the internal diameter ruler of the both ends section of outer body in outer body
The very little internal diameter size more than interlude is embedded in rigid second gasket ring coaxial with mounting ring in third rubber peak potion, and second
It gasket ring and is arranged on the third rubber peak of the second gasket ring radially outside and extends radially by second step face and radial extension institute
In the space of formation.
In one embodiment, it is set at the corresponding position of the second gasket ring in third rubber peak potion radially outward convex
The second protrusion gone out.
In one embodiment, connected between the axial outer end face of the second gasket ring and the outer end face of radial direction by arc surface
It connects.
Compared with prior art, the advantage of the invention is that:The hydraulic bushing of the present invention is configured with the first rubber bodies, sap cavity
And runner.In train curve when driving, sap cavity and runner be not only able to wheel is enable swimmingly to turn to so as to reduce wheel and
The abrasion of track, and larger rigidity is provided for train during train is kept straight on so that train keeps stable operation.
Description of the drawings
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.Wherein:
Fig. 1 schematically shows the stereogram of hydraulic bushing according to an embodiment of the invention;
Fig. 2 is the A-A sectional views from Fig. 1;
Fig. 3 is the B-B sectional views from Fig. 1;
Fig. 4 is the C-C sectional views from Fig. 1;
Fig. 5 shows the stereogram of main spring;
Fig. 6 shows the left view of main spring;
Fig. 7 shows the sectional view of another embodiment of main spring;
Fig. 8 shows the front view of sleeve;
Fig. 9 shows the right view of sleeve;
Figure 10 shows the sectional view for the housing for not carrying out flange processing;
Figure 11 shows the stereogram of seal assembly;
Figure 12 is the D-D sectional views from Figure 11;
Figure 13 is the E-E sectional views from Figure 11;
Figure 14 shows the stereogram of support ring assemblies;
Figure 15 is enlarged drawing at the F from Figure 12;
Figure 16 shows the stereogram of the first ligand;
In the accompanying drawings, identical component uses identical reference numeral.Attached drawing is not according to practical ratio.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings.
As shown in Figure 1, hydraulic bushing 1 includes the housing 200 of main spring 100 and tubular.As shown in Figures 2 and 3, main spring 100 has
There are mandrel 101, the first rubber bodies 102 and sleeve 103.First rubber bodies 102 are set on the outer wall of mandrel 101.In the first rubber
Two sap cavities 104 are set on colloid 102, each sap cavity 104 is the through-hole axially penetrated through along the first rubber bodies 102, and
Radially, two 104 relative type motors of sap cavity are spaced apart first rubber bodies 102.Sleeve 103 is set in the first rubber bodies 102
On outer wall.Meanwhile fluted 110 are set on the wall of sleeve 103.Wherein, main spring 100 is arranged in the inner cavity of housing 300, from
And housing 300 forms runner 105 with sleeve 103 at groove 110, for connecting two sap cavities 104.
When the hydraulic bushing 1 is mounted on track train, wherein, the mandrel 101 of hydraulic bushing 1 and turning for track train
It is connected to the framework of frame, and housing 300 is connect with the registration arm of wheel, simultaneously so that two sap cavities 104 are in the row of track train
Front and rear on into direction to be oppositely arranged, it is, using current of traffic to refer to, a sap cavity 104 is located at front, and another
It is located behind.In track train turning process, wheel occur turn to simultaneously registration arm is driven to move, and actuate housing 300 relative to
Mandrel 101 moves, the steering of bogie being then connected with mandrel 101 and the negotiation of bends of train.In the process so that
One sap cavity 104 of hydraulic bushing 1 becomes smaller when being squeezed, another sap cavity 104 is stretched and becomes larger, because being squeezed
And the liquid in the sap cavity 104 to become smaller can be flowed by runner 105 and is stretched in the sap cavity 104 to become larger, to comply with core
The relative motion and steering of axis 101 and housing 300.So as to, during train curve travels, hydraulic bushing 1 according to the present invention
The components such as rubber pivoted arm than in the prior art have the flexibility of bigger, so that wheel can be turned to more swimmingly, so as to reduce
The abrasion of wheel and track.In track train straight-going state, the extruding force that sap cavity 104 is subject to is smaller, sap cavity 104 and runner
Liquid in 105 hardly flows.This causes the rigidity of hydraulic bushing 1 relative to components such as rubber pivoted arms of the prior art
Rigidity does not have significant change, and train is enabled to keep stable operation.The hydraulic bushing 1 has good stiffness tuning as a result,
Ability meets track train and more stably keeps straight on more flexible excessively curved purpose.
In one embodiment, as shown in Fig. 2, mandrel 101 has First terrace 107, during mandrel 101 is configured to
Section diameter is more than the multi-diameter shaft of both ends diameter.First rubber bodies 102 are arranged on the interlude of mandrel 101.At one preferably
Embodiment in, the interlude of mandrel 101 projects radially outward, protrude part contour line be arc-shaped.It is, mandrel
101 interlude is configured to drum type.First rubber bodies 102 are set on interlude.Also, the madial wall of the first rubber bodies 102
The interlude for adapting to drum type formula is connect with mandrel 101, and the contour line of the lateral wall of the first rubber bodies 102 is straight line on section
To be connect with 103 formula of sleeve.By this set on the one hand, 101 and first rubber bodies of mandrel, 102 contact position is avoided
Stress concentration improves the service life of hydraulic bushing 1.On the other hand, the amplitude of oscillation of the mandrel 101 relative to housing 200 is improved,
The deflection angle of mandrel 101 is increased, so as to finally improve the excessively curved ability of track train flexibility.
Since the interlude of mandrel 101 is configured to drum type structure, also, in the axial direction, between sap cavity 104 and mandrel 101
The first rubber bodies 102 thickness is substantially the same everywhere other than axial end portion.So as to, in the axial direction, 104 middle part of sap cavity
Width be less than both ends width.It can effectively avoid the problem that sap cavity 104 is easily torn at axial both ends by this set, from
And improve the service life of hydraulic bushing 1.In addition, this setup also improves being quick on the draw for the liquid in sap cavity 104
Degree assists the excessively curved ability of train flexibility so as to increase hydraulic bushing 1.
As shown in figs. 4 and 6, sap cavity 104 is along the circumferentially distributed of the first rubber bodies 102.It is, on radial section,
Sap cavity 104 extends in arcuation.In addition, limit protrusion 106 is set in the radial direction middle of sap cavity 104, so that, sap cavity 104
At circumferential both ends, the radial dimension of section is more than the radial dimension of interlude, it is preferable that limit protrusion 106 is positioned close to mandrel
On the inner wall of the sap cavity 104 of 101 sides.101 corresponding housing 200 of mandrel move when, limit protrusion 106 be possible at first with sap cavity
The madial wall contact of 104 close sleeve 103, plays the role of stop.Especially when overload, limit protrusion can be passed through
106 top resists the madial wall of the close sleeve 103 of sap cavity 104 and prevents 101 corresponding 200 transition shift of housing of mandrel,
So as to ensure the safety in utilization of hydraulic bushing 1.Meanwhile sap cavity 104 is larger in the radial dimension of circumferential both ends section, so as to be formed
It is larger to allow bit space, so that the madial wall of the close mandrel 101 of sap cavity 104 and the madial wall close to sleeve 103 are not easy
It is torn, so as to improve the service life of hydraulic bushing 1.
In addition, on radial section, each section of sap cavity 104 smoothly transits, especially, structure at the circumferential both ends of sap cavity 104
It makes as circular shape.The problem of stress concentration of sap cavity 104 is effectively improved by this set, so as to further improve hydraulic pressure
The service life of bushing 1.
In one embodiment, mandrel 101, the first rubber bodies 102 and sleeve 103 are fixed together by vulcanization, with shape
Into main spring 100, as shown in Figure 5.
According to another embodiment of the invention, mandrel 101 is it is so structured that split structure.For example, as shown in fig. 7,
Mandrel 101 includes first part 108 and second part 109.Wherein, first part 108 is configured to multi-diameter shaft.Second part 109
It is configured to tubular and is set on the outer wall of first part 108.It is simple in structure also, in order to easy to process, first part 108
Outside wall surface and the internal face of second part 109 be configured to cylindric face.And the outside wall surface of second part 109 can be according to not
With needs and be configured to cylindric face or arch arcuation face.It, can in the production process of hydraulic bushing 1 according to this structure
To individually produce first part 108 and second part 109, then only by second part 109, the first rubber bodies 102 and sleeve 103
It fits together to form assembly, finally assembles up to form main spring 100 by assembly and first part 108 again.Due to core
The size of axis 101 is often larger (such as 84 millimeters of diameter, 226 millimeters of length), and cause the production of main spring 100 highly difficult and
Producing cost is high.However, according to the present embodiment, do not need to operate entire mandrel 101 when producing main spring 100, but only
It needs to operate second part 109 (for example, length is 70 millimeters), this greatly reduces production difficulty and reduces production expense
With.In addition, during by vulcanizing the main spring 100 of processing, since mandrel 101 is split structure, therefore only to second part
109th, the first rubber bodies 102 and sleeve 103 vulcanize, so as to effectively reduce vulcanization heating time, so as to save vulcanization
Processing cost.Simultaneously as the size of mandrel 101 for needing to vulcanize is greatly reduced, so as to which the sulphur of main spring 100 is substantially improved
Change effect, improve the service life of hydraulic bushing 1.
Gap 111 is provided on the end face of sleeve 103, to be connected with groove 110, as figure 9.One end of gap 111
It is connected with groove 110, the other end is connected with sap cavity 104.Preferably, groove 110 is spirally arranged on the outer wall of sleeve 103,
As shown in Figure 8.The length of groove 110 can suitably be increased by this set, and easily the length of runner 105 is carried out
It adjusts, to meet design requirement.
It is further preferred that the cross-sectional configuration of groove 110 is rectangular configuration, sectional dimension can be according to different needs
It is configured.It is this to have the advantages of simple structure and easy realization.For example, the section of groove 110 can be structured as square, and its section side
Length can be arranged between 2 millimeters to 5 millimeters.It should be noted that the cross sectional shape of groove 110 may be configured to other knots
Structure, for example, " V " shape, trapezoidal, " u "-shaped or semicircle etc..The length of groove 110 can be arranged between 2-5 meters.For example, runner
105 length is set as 3.4 meters.It should be noted that the length of groove 110 can be set as different according to actual needs
Size.On the outer wall of sleeve 103, the helix angle of groove 110 can be 3 to 10 degree.
Again as shown in Fig. 2, being arranged seal assembly 300 respectively at the both ends of staged mandrel 101, to realize 105 He of runner
The sealing of 104 grade fluid passages of sap cavity.
In one embodiment, as shown in Figure 11,12 and 13, seal assembly 300 have it is rigid support ring assemblies 301,
Second rubber bodies 302 and the first ligand 305.Wherein, support ring assemblies 301 have mounting ring 303 and bulge loop 304, such as Figure 14
It is shown.Mounting ring 303 is substantially cylindrical in shape, for being socketed in the outer wall of mandrel 101.Bulge loop 304 is arranged on the outer of mounting ring 303
It on wall and projects radially outward, and in axial direction, bulge loop 304 is approximately located at the axial middle of mounting ring 303.Second rubber bodies
302 are set in the outside of mounting ring 303 and coat bulge loop 304.It is, bulge loop 304 is inserted into the second rubber bodies 302.Tool
Body, the axial inner ends face of the second rubber bodies 302 and the First terrace 107 of the axial end face of sleeve 103 and mandrel 101 connect
It touches, so as to achieve the effect that axial seal runner 105 and sap cavity 104.
First ligand 305 is arranged in the second rubber bodies 302, and from the axial inner ends face upper edge of the second rubber bodies 302
Axial male extension, for (as seen from Figure 2) sealed with the second ligand 112 being arranged in the first rubber bodies 102
Cooperation contact, to avoid the connection of the sap cavity 104 in same axial end face.By the way that seal assembly 300 is set not only to realize
The sealing of flow channel for liquids 105 and sap cavity 104 in hydraulic bushing 1, and liquid is avoided on the sap cavity 104 in same axial end face
Connection, ensureing liquid is passed in another sap cavity 104 from a sap cavity 104 by runner 105.In addition, the seal assembly
300 increase the axial rigidity of hydraulic bushing 1, the matching of the multi-direction rigidity of hydraulic bushing 1 are realized, so as to meet the need of client
It will.So as to, the radial rigidity of hydraulic bushing 1 and the ratio of axial rigidity can be adjusted flexibly by adjusting seal assembly 300, from
And optimize the performance of hydraulic bushing 1.
It should be noted that above-mentioned only describe the example that the first ligand 305 is raised structure.And the first cooperation
Body 305 is also designed to female structure, and correspondingly, the second ligand 112 is configured to male structure, this setup
It is equally reached the purpose that two sap cavities 104 of barrier connect in the same axial end face of the first rubber bodies 102.
In a preferred embodiment, as shown in figure 16, it is bowed convex that the first ligand 305, which is configured to radial section,
Go out body, and the bowed circular arc of the first ligand 305 is towards extending in the second ligand 112.Correspondingly, the second ligand
112 are configured to female radial section as bowed body structure.It is further preferred that in the bowed circular arc of the first ligand 305
Prominent item 316 is set on face.Radially, which matches the bowed arc surface extension of the first ligand 305.It is logical
It crosses the protrusion item 316 and plays better seal effect.In addition, he is 112 tight for above-mentioned first ligand, 305 and second cooperation
It is close, on the basis of leakage is effectively prevent, stress concentration can be lowered.
On axial direction from inside to outside, the second rubber bodies 302 construct at least one rubber peak potion, with housing 200
Interference type coordinates, so as to achieve the purpose that axial seal.In a specific embodiment, two are formed in the second rubber bodies 302
A peak potion, both the first rubber peak potion 306 and third rubber peak potion 308.Wherein, the first rubber peak potion 306 and 200 interference type of housing
Cooperation to ensure the sealing effect for runner 105, prevents liquid from passing through the gap between the second rubber bodies 302 and housing 200
It leaks out.Further, third rubber peak potion 308 and 200 interference type of housing coordinate, so as to be further ensured that and improve for
The sealing effect of runner 105.
In the axial direction, third rubber peak potion 308 is located at the outside of the first rubber peak potion 306.Meanwhile without being fitted on housing
When in 200 inner cavity, the diameter dimension of third rubber peak potion 308 is more than the diameter dimension of the first rubber peak potion 306.Preferably,
The diameter of third rubber peak potion 308 is 6 to 10 millimeters bigger than the diameter of the first rubber peak potion 306.In assembling, seal assembly 300
It can be set by way of press fitting in the inner cavity of housing 200, and above-mentioned setting ensure that being smoothed out for assembling, while energy
It is enough to form two seals in the axial direction, fully ensure that sealing effect.
First rubber peak potion 306 and the setting of 308 compartment of third rubber peak potion.Also, in the first rubber peak potion 306 and
First is formd between three rubber peak potions 308 and allows bit space 309.During track train crosses bend, housing 200 relative to
Mandrel 101 moves, and the second rubber bodies 302 can be squeezed, and bit space 309 is allowed to reduce 200 institute of housing by setting first
The resistance of motion being subject to so that housing 200 is moved in certain amplitude relative to mandrel 101 and is easier, so as to improve track
The excessively curved ability of train flexibility.
Second rubber peak potion 307, the second rubber peak are set between the first rubber peak potion 306 and third rubber peak potion 308
Portion 307 is formed at 304 position of bulge loop.Meanwhile second rubber peak potion 307 protrude into first and allow in bit space 309, and in nature
Under state, the second rubber peak potion 307 has certain distance apart from housing 200.It is, the second rubber peak potion 307 not with outside
Set 200 is in direct contact.Preferably, the second rubber peak potion 307 is apart from about 3 to 10 millimeters of housing 200, for example, can be 5 millis
Rice.When housing 200 is bigger relative to 101 motion amplitude of mandrel, the second rubber peak potion 307 can resist housing 200 from
And prevent motion amplitude from further increasing.First bit space 309 is allowed to be provided for mandrel 101 and the relative motion of housing 200 as a result,
Certain space, meanwhile, the rigid bulge loop 304 at the second rubber peak potion 307 can also prevent motion amplitude excessive.In addition,
Above-mentioned set-up mode can also improve the rigidity of seal assembly 300 relatively, so as to optimize the axial rigidity of hydraulic bushing 1.
Clad type sets the first gasket ring 310 at the first rubber peak potion 306.First gasket ring 310 be stiffening ring, and with dress
It is set with 303 coaxial-type of ring.Meanwhile in the axial direction, the first gasket ring 310 is close to sleeve 103 and opposite with the end face of sleeve 103.
Radially, the first gasket ring 310 is close to housing 200.By the way that the first gasket ring 310 is set to ensure that the second rubber bodies 302 radially
The upper contact with housing 200 further improves the sealability of seal assembly 300.Preferably, in the first rubber peak potion 306
The first protrusion 311 projected radially outward is set at upper and 310 corresponding position of the first gasket ring, as shown in figure 15.This
One protrusion 311 further increases the sealability of seal assembly 300, and ensures sealing effect.
Housing 200 includes outer body 201 and extension 202, as shown in Figure 2.Wherein, outer body 201 is configured to cylinder
Shape, and be socketed on the outer wall of sleeve 103, and extension 202 is arranged on axial both ends and the outer body of outer body 201
201 are fixedly connected, and are configured to circular and axially extend internally.Outer body 201 and extension 202 are integral type structure
Part as shown in Figure 10, and is contacted by press-loading process with seal assembly 300.Extension 202 define the first rubber bodies 102,
The axial position of 300 grade components of sleeve 103 and seal assembly, ensure that seal assembly 300 and sleeve 103 are closely connected, so that it is guaranteed that
Sealing effect.In addition, radially, inner wall distance support 301 certain distance of ring assemblies of extension 202 is (for example, 5 to 10
Millimeter).In housing 200 relative in 101 motion process of mandrel, the distance between extension 202 and support ring assemblies 301 can
Rigid extension 202 is avoided to be connected on rigid support ring assemblies 301, so as to ensure that the flexibility of hydraulic bushing 1 is excessively curved
The ability in road.
As shown in Figure 10, in process of production, second step face 203 is set on housing 200 so that the two of housing 200
The internal diameter size of section is held to be more than the internal diameter size of interlude.It is, the wall thickness at 200 interlude of housing is more than at the section of both ends
Wall thickness.Extension 202 is formed at the section of both ends by being pressed.This set causes press fitting operation to become easy.Meanwhile third
Inner wall of the rubber peak potion 308 not only with housing 200 contacts, but also is contacted with second step face 203, so as to improve sealing effect
Fruit.In addition, it is embedded in the second gasket ring 313 in third rubber peak potion 308.Second gasket ring 313 is for stiffening ring and same with mounting ring 303
Axis is set.In the axial direction, the second gasket ring 313 is arranged between second step face 203 and extension 202.Radially, the second pad
Ring 313 is close to housing 200.Also, the axial outer end face of the second gasket ring 313 is in direct contact with radial extension 202.Pass through this
Kind setting further improves the sealability of seal assembly.
It is connected between the axial outer end face of second gasket ring 313 and the outer end face of radial direction by arc surface, it can from Figure 15
To find out.Contribute to carry out press fitting operation to housing 200 by this set, and ensure that extension 202 can be press-fit into place.
The second protrusion 314 projected radially outward is set in third rubber peak potion 308, as shown in figure 15.Second is convex
Go out portion 314 between the second gasket ring 313 and housing 200, then improve the sealability of seal assembly 300 further.
Third protruding portion 315 is set on the axial inner ends face of the second rubber bodies 302, as shown in figure 15.Third protruding portion
315 between the second rubber bodies 302 and the First terrace 107 of mandrel 101, to ensure the sealing of auxiliary sap cavity 114.
In addition, in the second rubber bodies 302, it is additionally provided with second and allows bit space 312, as shown in figure 12.Second resigning is empty
Between 312 be arranged on the axial outer end face of the second rubber bodies 302, and be configured to the annular groove of indent.This second allows bit space 312
Increase the radial deformation capabilities of seal assembly 300, which thereby enhance the excessively curved ability of flexibility of hydraulic bushing 1.
As shown in Figure 1, liquid injection hole 204 is set on housing 200.The liquid injection hole 204 is configured to logical on the wall of housing 200
Hole, and connected with runner 105.The liquid injection hole 204 has the advantages of simple structure and easy realization, and be easily achieved refueling operation.In addition,
The sealed setting plug 205 at liquid injection hole 204, as shown in Figure 2.For example, plug 205 can be with sealed spiral shell with liquid injection hole 204
Line connects.
The edge face structure of first rubber bodies 102 has circumferentially distributed annular groove 113, as shown in Figure 5.First rubber bodies
102nd, the second rubber bodies 302, sleeve 103 and first coordinate 305 bodies to form auxiliary sap cavity 114 at annular groove 113, such as Fig. 3
It is shown.The auxiliary sap cavity 114 is arranged among sap cavity 104 and runner 105 and with both connecting.On the one hand, the auxiliary sap cavity
114 increase the liquid storage capacity of hydraulic bushing 1, improve the stiffness equivalent effect of hydraulic bushing 1.On the other hand, the auxiliary liquid
Chamber 114 increases the safety in utilization of hydraulic bushing 1, even if for example, sap cavity 104 by block in the case of, in hydraulic bushing 1
The liquid in portion can still flow.
Main spring 100 is arranged on by way of press fitting in the inner cavity of housing 200.This mode can guarantee the close of runner 105
Envelope.According to the present invention, before not being pressed, the overall diameter of main spring 100 is 1.5-2.3 millimeters bigger than the interior diameter of housing 200.For example,
The interior diameter design size of housing 200 isMillimeter, and the overall diameter of main spring 100 isMillimeter.It is set by this
It puts and both can guarantee that main spring 100 is successfully pressed into housing 200, moreover it is possible to ensure the sealing between main spring 100 and housing 200.
In a preferred embodiment, sleeve 103 is made of nylon66 fiber.This setup utilization rate nylon66 fiber has
The advantages of fatigue resistance and rigidity are higher, and heat resistance is preferable, while wearability is good improves the service life of hydraulic bushing 1.
For the description of the present application, abstract and claims, it is noted that singulative " one ",
"the" etc. also includes plural form, unless expressly stated otherwise,.
Although by reference to preferred embodiment, invention has been described, in the situation for not departing from the scope of the present invention
Under, various improvement can be carried out to it and component therein can be replaced with equivalent.Especially, it to be rushed as long as there is no structures
Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited in texts
Disclosed in specific embodiment, but all technical solutions including falling within the scope of the appended claims.
Claims (10)
1. a kind of hydraulic bushing, which is characterized in that including:
Mandrel,
The first rubber bodies being set on the outer wall of the mandrel, diametrically opposite compartment is set in first rubber bodies
Two sap cavities axially penetrated through,
The sleeve being set on the outer wall of first rubber bodies, set on the wall of the sleeve it is fluted,
The housing being set on the outside of the sleeve,
Wherein, the housing forms the runner for connecting two sap cavities with the sleeve in the groove.
2. hydraulic bushing according to claim 1, which is characterized in that the mandrel has First terrace with by the core
Axis is configured to the multi-diameter shaft that middle part diameter is more than both ends diameter, and first rubber bodies are arranged on the centre of the mandrel
Section, and it is arranged the seal assembly with the second rubber bodies and the first ligand respectively at the both ends of the mandrel, second rubber
Colloid is contacted with the axial end face of the sleeve and the First terrace, and first ligand is used to seal on the same end
Two sap cavities are isolated in formula.
3. hydraulic bushing according to claim 2, which is characterized in that the edge face structure of first rubber bodies has circumferentially
The annular groove of distribution, first rubber bodies, second rubber bodies, the sleeve and first ligand are in the annular
Auxiliary sap cavity is formed at slot.
4. the hydraulic bushing according to Claims 2 or 3, which is characterized in that the seal assembly further includes rigid support
Ring assemblies, the support ring assemblies have the mounting ring being socketed on the mandrel and are projected radially outward by the outer wall of mounting ring
Bulge loop, wherein, second rubber bodies coat the outside that the bulge loop formula is set in the mounting ring.
5. the hydraulic bushing according to any one of claim 2 to 4, which is characterized in that second rubber bodies have extremely
A few rubber peak potion coordinates with the housing interference type.
6. hydraulic bushing according to claim 5, which is characterized in that on axial direction from inside to outside, described second
Rubber bodies sequentially form the first rubber peak potion, the second rubber peak potion and third rubber peak potion, the first rubber peak potion and described
Third rubber peak potion coordinates with the housing interference type, and the second rubber peak potion is opposite with the bulge loop position, described
Clad type sets rigid first gasket ring coaxial with the mounting ring at first rubber peak potion, and first gasket ring is close to described
Sleeve is simultaneously opposite with the end face of the sleeve.
7. hydraulic bushing according to claim 6, which is characterized in that the outer body of the housing including tubular and with institute
The radial extension of outer body connection is stated, the radial extension is formed by being pressed and contacted with the seal assembly.
8. hydraulic bushing according to claim 7, which is characterized in that second step face is set to make in the outer body
The internal diameter size for obtaining the both ends section of the outer body is more than the internal diameter size of interlude, is embedded in the third rubber peak potion
Rigid second gasket ring coaxial with the mounting ring, second gasket ring and is arranged on the of second gasket ring radially outside
Three rubber peaks are extended radially into the space formed by the second step face and the radial extension.
9. hydraulic bushing according to claim 8, which is characterized in that in the described second pad in the third rubber peak potion
The second protrusion projected radially outward is set at the corresponding position of ring.
10. hydraulic bushing according to claim 9, which is characterized in that the axial outer end face and diameter of second gasket ring
To outer end face between connected by arc surface.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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CN2016110964002 | 2016-12-02 | ||
CN2016110955925 | 2016-12-02 | ||
CN201611096400 | 2016-12-02 | ||
CN201611095592 | 2016-12-02 |
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CN108150593A true CN108150593A (en) | 2018-06-12 |
CN108150593B CN108150593B (en) | 2020-07-07 |
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Family Applications (18)
Application Number | Title | Priority Date | Filing Date |
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CN201611161939.1A Pending CN108150587A (en) | 2016-12-02 | 2016-12-15 | A kind of electrolyte filling method of rail traffic hydraulic bushing |
CN201621381050.XU Active CN206555347U (en) | 2016-12-02 | 2016-12-15 | A kind of track traffic hydraulic bushing |
CN201611162812.1A Pending CN108150588A (en) | 2016-12-02 | 2016-12-15 | A kind of rail traffic hydraulic bushing |
CN201611168201.8A Active CN108150595B (en) | 2016-12-02 | 2016-12-16 | Hydraulic bushing |
CN201611166938.6A Active CN108150593B (en) | 2016-12-02 | 2016-12-16 | Hydraulic bushing |
CN201611168146.2A Withdrawn CN108150594A (en) | 2016-12-02 | 2016-12-16 | A kind of hydraulic bushing |
CN201611166402.4A Active CN108150591B (en) | 2016-12-02 | 2016-12-16 | Sealing assembly for hydraulic bushing and hydraulic bushing |
CN201611174053.0A Active CN108150596B (en) | 2016-12-02 | 2016-12-16 | Hydraulic bushing |
CN201611166343.0A Active CN108150589B (en) | 2016-12-02 | 2016-12-16 | Hydraulic bushing |
CN201611166520.5A Active CN108150592B (en) | 2016-12-02 | 2016-12-16 | Hydraulic bushing |
CN201611166346.4A Withdrawn CN108150590A (en) | 2016-12-02 | 2016-12-16 | A kind of hydraulic bushing |
CN201611205646.9A Active CN108150597B (en) | 2016-12-02 | 2016-12-23 | Hydraulic bushing and rail train |
CN201621423948.9U Active CN206555348U (en) | 2016-12-02 | 2016-12-23 | Hydraulic bushing and track train |
CN201621425372.XU Active CN206361076U (en) | 2016-12-02 | 2016-12-23 | hydraulic bushing and track train |
CN201611206851.7A Active CN108150536B (en) | 2016-12-02 | 2016-12-23 | Hydraulic bushing and rail train |
CN201611206570.1A Active CN108150598B (en) | 2016-12-02 | 2016-12-23 | Hydraulic bushing and rail train |
CN201611205014.2A Active CN108150535B (en) | 2016-12-02 | 2016-12-23 | Hydraulic bushing and rail train |
CN201611206104.3A Withdrawn CN108150585A (en) | 2016-12-02 | 2016-12-23 | Hydraulic bushing and track train |
Family Applications Before (4)
Application Number | Title | Priority Date | Filing Date |
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CN201611161939.1A Pending CN108150587A (en) | 2016-12-02 | 2016-12-15 | A kind of electrolyte filling method of rail traffic hydraulic bushing |
CN201621381050.XU Active CN206555347U (en) | 2016-12-02 | 2016-12-15 | A kind of track traffic hydraulic bushing |
CN201611162812.1A Pending CN108150588A (en) | 2016-12-02 | 2016-12-15 | A kind of rail traffic hydraulic bushing |
CN201611168201.8A Active CN108150595B (en) | 2016-12-02 | 2016-12-16 | Hydraulic bushing |
Family Applications After (13)
Application Number | Title | Priority Date | Filing Date |
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CN201611168146.2A Withdrawn CN108150594A (en) | 2016-12-02 | 2016-12-16 | A kind of hydraulic bushing |
CN201611166402.4A Active CN108150591B (en) | 2016-12-02 | 2016-12-16 | Sealing assembly for hydraulic bushing and hydraulic bushing |
CN201611174053.0A Active CN108150596B (en) | 2016-12-02 | 2016-12-16 | Hydraulic bushing |
CN201611166343.0A Active CN108150589B (en) | 2016-12-02 | 2016-12-16 | Hydraulic bushing |
CN201611166520.5A Active CN108150592B (en) | 2016-12-02 | 2016-12-16 | Hydraulic bushing |
CN201611166346.4A Withdrawn CN108150590A (en) | 2016-12-02 | 2016-12-16 | A kind of hydraulic bushing |
CN201611205646.9A Active CN108150597B (en) | 2016-12-02 | 2016-12-23 | Hydraulic bushing and rail train |
CN201621423948.9U Active CN206555348U (en) | 2016-12-02 | 2016-12-23 | Hydraulic bushing and track train |
CN201621425372.XU Active CN206361076U (en) | 2016-12-02 | 2016-12-23 | hydraulic bushing and track train |
CN201611206851.7A Active CN108150536B (en) | 2016-12-02 | 2016-12-23 | Hydraulic bushing and rail train |
CN201611206570.1A Active CN108150598B (en) | 2016-12-02 | 2016-12-23 | Hydraulic bushing and rail train |
CN201611205014.2A Active CN108150535B (en) | 2016-12-02 | 2016-12-23 | Hydraulic bushing and rail train |
CN201611206104.3A Withdrawn CN108150585A (en) | 2016-12-02 | 2016-12-23 | Hydraulic bushing and track train |
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Also Published As
Publication number | Publication date |
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CN108150593B (en) | 2020-07-07 |
CN108150592A (en) | 2018-06-12 |
CN108150589A (en) | 2018-06-12 |
CN108150596B (en) | 2020-09-22 |
CN108150536A (en) | 2018-06-12 |
CN108150594A (en) | 2018-06-12 |
CN108150596A (en) | 2018-06-12 |
CN108150597A (en) | 2018-06-12 |
CN108150587A (en) | 2018-06-12 |
CN108150592B (en) | 2020-05-08 |
CN108150585A (en) | 2018-06-12 |
CN108150535B (en) | 2020-06-26 |
CN108150590A (en) | 2018-06-12 |
CN108150591B (en) | 2020-07-14 |
CN108150598A (en) | 2018-06-12 |
CN108150536B (en) | 2020-06-26 |
CN108150595B (en) | 2020-05-12 |
CN108150591A (en) | 2018-06-12 |
CN206361076U (en) | 2017-07-28 |
CN206555348U (en) | 2017-10-13 |
CN108150535A (en) | 2018-06-12 |
CN108150598B (en) | 2020-05-12 |
CN206555347U (en) | 2017-10-13 |
CN108150595A (en) | 2018-06-12 |
CN108150597B (en) | 2020-05-12 |
CN108150589B (en) | 2020-07-14 |
CN108150588A (en) | 2018-06-12 |
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