CN104500638A - Steering damper - Google Patents
Steering damper Download PDFInfo
- Publication number
- CN104500638A CN104500638A CN201410749720.8A CN201410749720A CN104500638A CN 104500638 A CN104500638 A CN 104500638A CN 201410749720 A CN201410749720 A CN 201410749720A CN 104500638 A CN104500638 A CN 104500638A
- Authority
- CN
- China
- Prior art keywords
- clutch release
- release slave
- piston rod
- slave cylinder
- spring seat
- 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
Links
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
- F16F13/005—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
- F16F13/007—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper the damper being a fluid damper
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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
- F16F9/3207—Constructional features
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a steering damper. The steering damper comprises a working cylinder and a piston rod, wherein an inner chamber of the working cylinder is filled with oil; the piston rod moves in the axial direction of the working cylinder; the outer end of the piston rod extends out of one end of the working cylinder; oil seal covers are mounted at the two ends of the working cylinder; an oil storage cylinder is arranged on the outer side wall of the working cylinder and communicated with the working cylinder; a resetting valve assembly is mounted at the end part, positioned in the working cylinder, of the piston rod; a first spring seat is arranged at the other end of the oil storage cylinder, and a second spring seat is arranged at the outer end of the piston rod; a damping spring is arranged between the first spring seat and the second spring seat. External impact energy on a steering machine can be rapidly absorbed through the additionally-arranged damping spring, and the energy absorbed through the damping spring can be rapidly converted into heat under the action of the piston rod in the working cylinder, a working medium and the oil storage cylinder, so as to achieve rapid elimination of vibration of the steering machine, and avoid the problem of potential safety hazards of a steering wheel, which are caused by the vibration of the steering machine.
Description
Technical field
The present invention relates to the device of steering box traffic safety, be specifically related to one and turn to and use vibration damper.
Background technique
Steering anti-kickback snubber is driver beat steering wheel while, is used for reducing the vibrations of steering equipment, changes the natural frequency of steering equipment, reach the wearing and tearing reducing steering equipment, improve the working life of steering equipment.When car is when moving ahead, run into irregular road surface, when car vibration, steering equipment also can follow to be vibrated together, and corresponding connected element there will be high frequency vibrations, and fretting wear aggravates.
In order to improve the working life of steering equipment, in prior art, a dual tube shock absorber of carrying out being connected with steering box is installed at steering box place, owing to being horizontal position when steering box works, so just need to be full of working medium (when piston rod does not enter clutch release slave cylinder in clutch release slave cylinder, working medium is full of) in clutch release slave cylinder, because piston rod is in reciprocatory movement, when entering clutch release slave cylinder, piston rod needs to take certain volume, because fluid can not compress, prior art generally needs design air bag be communicated with clutch release slave cylinder.
When steering box occur vibration time, move compression work medium by piston rod and carry out damping, need a very long time could by absorb fault offset out; And the working medium entering air bag needs very large pressure just can be back in clutch release slave cylinder, if the inadequate working medium of pressure is just difficult to all be back in clutch release slave cylinder, makes piston rod be difficult to reset, the damping of vibration damper after long-time use, will be had a strong impact on.
Summary of the invention
For above-mentioned deficiency of the prior art, the invention provides a kind of quick elimination steering box vibrations and drive turning to of piston rod reset to use vibration damper fast.
In order to reach foregoing invention object, the technical solution used in the present invention is:
On the one hand, provide one to turn to vibration damper, it comprises in inner chamber the clutch release slave cylinder of filling fluid and the piston rod along clutch release slave cylinder axial motion; One end of clutch release slave cylinder is stretched out in the outer end of piston rod; The two ends of clutch release slave cylinder are provided with oil seal cover; The outer side wall of clutch release slave cylinder is provided with the oil storage cylinder be communicated with clutch release slave cylinder; The end that piston rod is positioned at clutch release slave cylinder is provided with restoration valve component; The other end of oil storage cylinder is provided with the first spring seat, and the outer end of piston rod is provided with the second spring seat; Damping spring is provided with between first spring seat and the second spring seat.
In the implementation that the first is possible, the compression valve assembly that the end that oil storage cylinder comprises the parcel outer cylinder body of clutch release slave cylinder and contiguous first spring seat of clutch release slave cylinder is installed, compression valve assembly offers be communicated with oil storage cylinder have throttle orifice.
Beneficial effect of the present invention is: the damping spring of increase can absorb the energy of the foreign impacts that steering box is subject to fast, and be heat by the transformation of energy that damping spring absorbs by the effect of the piston rod in clutch release slave cylinder, working medium and oil storage cylinder fast, thus realize the quick elimination of steering box vibration, the vibrations number of times of the steering equipment that decayed.
After the energy of damping spring is eliminated, can drive piston rod return during damping spring self-return, due to the pressure change in clutch release slave cylinder while piston rod return, the fluid entered in liquid storage cylinder can be back to clutch release slave cylinder rapidly; Damping spring can also have certain supporting effect to clutch release slave cylinder and liquid storage cylinder simultaneously.
Accompanying drawing explanation
Fig. 1 is turning to the structural representation after damping spring installed by vibration damper;
Fig. 2 turns to remove the sectional view after the first spring mounting seat, the second spring mounting seat and damping spring with vibration damper;
Fig. 3 is the enlarged view in A portion in Fig. 2.
Wherein, 1, vibration damper; 2, the first spring seat; 3, screw; 4, damping spring; 5, bowl pad; 6, rubber pad; 7, step section; 8, locking nut; 9, urethane pad; 10, sleeve pipe; 11, piston rod; 12, position limit cycle; 13, oil seal assembly; 14, oil sealing block; 15, oil sheet; 16, oil seal spring; 17, guider; 18, clutch release slave cylinder; 19, air bag; 20, buffer stopper; 21, limiting stopper; 22, compression valve assembly; 23, oil seal cover; 24, oil storage cylinder; 25, restoration valve component.
Embodiment
Below the specific embodiment of the present invention is described; so that those skilled in the art understand the present invention; but should be clear; the invention is not restricted to the scope of embodiment; to those skilled in the art; as long as various change to limit and in the spirit and scope of the present invention determined, these changes are apparent, and all innovation and creation utilizing the present invention to conceive are all at the row of protection in appended claim.
Showing with reference to figure 1, Fig. 1 is turning to the structural representation after damping spring installed by vibration damper; As shown in Figure 1, this example discloses one and turns to vibration damper, and its technological scheme is included in the clutch release slave cylinder 18 of filling fluid in its inner chamber and the piston rod 11 along clutch release slave cylinder 18 axial motion; Oil seal cover 23 for seal operation cylinder 18 inner fluid is installed at the two ends of clutch release slave cylinder 18.One end of piston rod 11 is positioned at clutch release slave cylinder 18, and is provided with restoration valve component 25 in the end that piston rod 11 is positioned at clutch release slave cylinder 18; Preferred restoration valve component 25 contacts with the internal surface of clutch release slave cylinder 18; The other end (outer end) of piston rod 11 stretches out one end of clutch release slave cylinder 18.
The oil storage cylinder 24 be communicated with clutch release slave cylinder 18 is provided with at the outer side wall of clutch release slave cylinder 18; Oil storage cylinder 24 can for temporarily storing the fluid flowed out in clutch release slave cylinder 18 in shock absorbing process.The other end of oil storage cylinder 24 is provided with the first spring seat 2, and the outer end of piston rod 11 is provided with the second spring seat; Damping spring 4 is provided with between first spring seat 2 and the second spring seat.
When steering box is by external force vibrations, damping spring 4 can absorb the energy of the foreign impacts that steering box is subject to fast, and be heat by the transformation of energy that damping spring 4 absorbs fast by the effect of piston rod 11, working medium and the oil storage cylinder 24 in clutch release slave cylinder 18, thus realize the quick elimination of steering box vibration, avoid steering wheel along with steering box vibrations and occur the problem of potential safety hazard.
First spring seat 2 preferably adopts rigid to make, and it is fixedly mounted on clutch release slave cylinder 18 by screw 3, and above-mentioned screw 3 is fillister head screw preferably.During use, the position of the first spring seat 2 also can as required, and adjustment fillister head screw can realize the first movement of spring seat 2 in clutch release slave cylinder 18.
As shown in Figure 2, in one embodiment of the invention, the outer end of piston rod 11 is provided with a step section 7, the second spring seat is arranged in above-mentioned step section 7.Second spring seat preferably includes two rubber pads 6 and two bowl pads 5, two rubber pads 6 adopt the mode by the lug boss on it contacts with each other to install in opposite directions, two bowl pads 6 are arranged on rubber pad 6 both sides combined respectively, between the bowl pad 5 that damping spring 4 is installed on contiguous clutch release slave cylinder 18 and rubber pad 6, by locking nut 8, second spring seat is fixed in step section 7 afterwards.Wherein preferably locking nut 8 is hexagonal locking nut.
Vibration damper 1 one end is installed together by the second spring seat and steering box, and wherein the connecting end of steering box and vibration damper 1 is positioned on two rubber pads 6 arranging in opposite directions; The other end of vibration damper 1 is fixedly mounted on its place plane by the sleeve pipe 10 that its end is installed; Preferably be provided with urethane pad 9 at the internal surface of sleeve pipe 10, such urethane pad 9 can play certain cushioning effect to the installation position of sleeve pipe 10 and plane.When steering box is by external force vibrations, rubber pad 6 can play certain cushioning effect to the connecting end of steering box.
As shown in Figure 2, in one embodiment of the invention, the compression valve assembly 22 that the end that oil storage cylinder 24 can comprise outer cylinder body and contiguous first spring seat 2 of clutch release slave cylinder 18 being wrapped in clutch release slave cylinder 18 outer surface is installed; Compression valve assembly 22 offers the throttle orifice be communicated with oil storage cylinder 24.
After damping spring 4 absorbs energy, when driving piston rod 11 to move around in clutch release slave cylinder 18, by the restoration valve component 15 of piston rod 11 end, fluid is entered in oil storage cylinder 24 by throttle orifice; After the fault offset of damping spring 4, piston rod 11 return can be driven during damping spring 4 self-return, while piston rod 11 return, the pressure in clutch release slave cylinder 18 also can and then change, and the fluid entered in liquid storage cylinder 24 can be back in clutch release slave cylinder 18 rapidly.
Because vibration damper 1 keeps flat to be arranged near steering box, when the fluid of oil storage cylinder 24 inside is refluxed by flowing hole, be difficult to successfully be back in clutch release slave cylinder 18, be filled with air bag 19 so fill out in the gap formed between oil storage cylinder 24 and clutch release slave cylinder.Wherein air bag 19 can shrink fast when being under pressure, and can restore to the original state rapidly after external pressure releases, thus is discharged rapidly by the fluid of oil storage cylinder 24 inside.Wherein, air bag does not absorb fluid, can not enter air bag 19 inner when fluid enters.
After vibration damper 1 uses a period of time, can there are certain wearing and tearing in the component of clutch release slave cylinder 18 inside, and when piston rod 11 is in clutch release slave cylinder 18 during fast moving, piston rod 11 may exist certain crooked, and the easy like this piston rod 11 that causes damages; For this reason, in one embodiment of the invention, the body of rod that piston rod 11 is positioned at clutch release slave cylinder 18 is provided with the guider 17 contacted with clutch release slave cylinder 18 internal surface.After arranging guider 17, can guarantee that piston rod 11 moves vertically, guider 17 preferably adopts powder metallurgy to add copper steel teflon and makes.
As shown in Figure 2, in one embodiment of the invention, piston rod 11 is in rapid movement process, piston rod 11 compression put in place after or extend put in place after, easily produce sound when the rigid pipe between the rigid pipe bowl pad 5 of the second spring seat and rigid pipe oil seal cover 23 and on restoration valve component 25 and rigid pipe guider 17 making contact, form noise; Easy wear damage when two rigid contact parts collide mutually simultaneously, in order to protect component, reduces noise, and the piston rod 11 between the end and the bowl pad 5 of contiguous clutch release slave cylinder 18 of contiguous second spring seat of clutch release slave cylinder 18 is installed with position limit cycle 12; At piston rod 11 neighbor restoration valve assembly 15, place is provided with limit assembly.
Wherein, piston rod 11 offers an annular groove, limit assembly comprises the limiting stopper 21 in the annular groove that is fixedly installed on piston rod 11, and limiting stopper 21 is installed with buffer stopper 20 away from the side of restoration valve component 25.Wherein position limit cycle 12 and buffer stopper 20 all adopt polyamide to make.
Piston rod 11 is when clutch release slave cylinder 18 inside is mobile, due to the change of clutch release slave cylinder 18 internal pressure, part fluid may overflow along clutch release slave cylinder 18 two ends, in order to improve the sealing in clutch release slave cylinder 18, oil seal cover 23 internal surface of contiguous second spring seat end, clutch release slave cylinder 18 inside is provided with oil seal assembly 13.In order to improve the sealing of clutch release slave cylinder further, be also provided with seal ring at the internal surface of the oil seal cover 23 of contiguous first spring seat 2.
With reference to figure 3, the oil sealing block 14 that oil seal cover 23 internal surface that oil seal assembly 13 can comprise contiguous second spring seat is installed, the oil sheet 15 of restriction oil sealing block 14 movement and the oil seal spring 16 be arranged on for supporting oil gasket 15 between oil sheet 15 and guider 17.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and novel features.
Claims (10)
1. turn to a vibration damper, comprise in inner chamber the clutch release slave cylinder of filling fluid and the piston rod along described clutch release slave cylinder axial motion; One end of described clutch release slave cylinder is stretched out in the outer end of described piston rod; The two ends of described clutch release slave cylinder are provided with oil seal cover; It is characterized in that: the outer side wall of described clutch release slave cylinder is provided with the oil storage cylinder be communicated with described clutch release slave cylinder; The end that described piston rod is positioned at clutch release slave cylinder is provided with restoration valve component; The other end of described oil storage cylinder is provided with the first spring seat, and the outer end of described piston rod is provided with the second spring seat; Damping spring is provided with between described first spring seat and the second spring seat.
2. according to claim 1 turning to uses vibration damper, it is characterized in that: the outer end of described piston rod is provided with a step section, described second spring seat comprises and being arranged in described step section and two rubber pads arranged in opposite directions and the bowl pad being arranged on two rubber pad both sides; Described damping spring is installed between the bowl pad of contiguous oil storage cylinder and described rubber pad.
3. according to claim 1 and 2 turning to uses vibration damper, it is characterized in that: the compression valve assembly that the end that described oil storage cylinder comprises the outer cylinder body that wraps up described clutch release slave cylinder and contiguous described first spring seat of clutch release slave cylinder is installed, described compression valve assembly offers be communicated with described oil storage cylinder have throttle orifice.
4. according to claim 3 turning to uses vibration damper, it is characterized in that: be filled with air bag in the gap formed between described oil storage cylinder and clutch release slave cylinder.
5. turning to vibration damper according to claim 1,2 or 4, it is characterized in that: the body of rod that described piston rod is positioned at clutch release slave cylinder is provided with the guider contacted with clutch release slave cylinder internal surface.
6. turning to vibration damper according to Claims 2 or 3, is characterized in that: the piston rod between the end of contiguous described second spring seat of described clutch release slave cylinder and the bowl pad of contiguous described clutch release slave cylinder is installed with position limit cycle; The contiguous described restoration valve component place of described piston rod is provided with limit assembly.
7. according to claim 6ly turn to vibration damper, it is characterized in that: described limit assembly comprises the limiting stopper in the groove that fixedly clamps on the piston rod, and described limiting stopper is installed with buffer stopper away from the side of described restoration valve component.
8. according to claim 7 turning to uses vibration damper, it is characterized in that: the material of described buffer stopper is polyamide.
9. according to claim 5 turning to uses vibration damper, it is characterized in that: the oil seal cover internal surface of contiguous described second spring seat end, described clutch release slave cylinder inside is provided with oil seal assembly.
10. according to claim 9 turning to uses vibration damper, it is characterized in that: the oil sealing block that the oil seal cover internal surface that described oil seal assembly comprises contiguous second spring seat is installed, the oil sheet of restriction oil sealing block movement and the oil seal spring be arranged on for supporting oil gasket between oil sheet and guider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410749720.8A CN104500638B (en) | 2014-12-10 | 2014-12-10 | A kind of steering damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410749720.8A CN104500638B (en) | 2014-12-10 | 2014-12-10 | A kind of steering damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104500638A true CN104500638A (en) | 2015-04-08 |
| CN104500638B CN104500638B (en) | 2017-11-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410749720.8A Active CN104500638B (en) | 2014-12-10 | 2014-12-10 | A kind of steering damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104500638B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105692459A (en) * | 2016-04-07 | 2016-06-22 | 徐州重型机械有限公司 | Vibration reduction structure and crane |
| CN106523573A (en) * | 2016-12-27 | 2017-03-22 | 浙江名震机械制造有限公司 | Double-lifting-ring large-base electric vehicle damper |
| CN106678260A (en) * | 2016-12-27 | 2017-05-17 | 浙江名震机械制造有限公司 | Automobile damper |
| CN112128287A (en) * | 2020-10-26 | 2020-12-25 | 常德市俊德科技发展有限公司 | Can prevent into pneumatic bumper shock absorber of dust |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5244064A (en) * | 1991-01-31 | 1993-09-14 | Kayaba Kogyo Kabushiki Kaisha | Shock absorber |
| CN2679420Y (en) * | 2004-01-10 | 2005-02-16 | 重庆长安减震器有限公司 | Adjusting damper |
| KR20060102688A (en) * | 2005-03-24 | 2006-09-28 | 주식회사 만도 | Oil seal of a shock absorber |
| WO2008087660A1 (en) * | 2007-01-19 | 2008-07-24 | Tvs Motor Company Limited | Shock absorber for an automobile |
| US8196942B2 (en) * | 2007-02-20 | 2012-06-12 | Tenneco Automotive Operating Company Inc. | Positioning feature and method for precise vehicle heights |
| CN103282688A (en) * | 2011-01-17 | 2013-09-04 | 坦尼科汽车操作有限公司 | Damper tube reinforcement sleeve |
| CN203297460U (en) * | 2013-05-22 | 2013-11-20 | 宁波南方减震器制造有限公司 | Bidirectional buffer damper |
| CN203297465U (en) * | 2013-05-22 | 2013-11-20 | 宁波南方减震器制造有限公司 | Dual-sealing hydraulic damper |
| CN203477156U (en) * | 2013-10-16 | 2014-03-12 | 博尔德汽车零部件(海宁)有限公司 | Hydraulic shock absorber |
| CN203641385U (en) * | 2014-01-03 | 2014-06-11 | 温州龙腾汽车配件有限公司 | Adjustable-barrel shock absorber |
| CN203670580U (en) * | 2014-01-06 | 2014-06-25 | 浙江中兴减震器制造有限公司 | Steering anti-roll shock absorber |
| CN203743292U (en) * | 2013-12-26 | 2014-07-30 | 比亚迪股份有限公司 | Piston rod assembly for shock absorber, shock absorber with piston rod assembly, and vehicle with shock absorber |
| WO2014138076A1 (en) * | 2013-03-07 | 2014-09-12 | Tenneco Automotive Operating Company Inc. | Jounce bumper nose retaining feature for a shock absorber |
| CN203836061U (en) * | 2014-05-20 | 2014-09-17 | 宁波凯瑞汽车零部件有限公司 | Shock absorber for steering engine |
-
2014
- 2014-12-10 CN CN201410749720.8A patent/CN104500638B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5244064A (en) * | 1991-01-31 | 1993-09-14 | Kayaba Kogyo Kabushiki Kaisha | Shock absorber |
| CN2679420Y (en) * | 2004-01-10 | 2005-02-16 | 重庆长安减震器有限公司 | Adjusting damper |
| KR20060102688A (en) * | 2005-03-24 | 2006-09-28 | 주식회사 만도 | Oil seal of a shock absorber |
| WO2008087660A1 (en) * | 2007-01-19 | 2008-07-24 | Tvs Motor Company Limited | Shock absorber for an automobile |
| US8196942B2 (en) * | 2007-02-20 | 2012-06-12 | Tenneco Automotive Operating Company Inc. | Positioning feature and method for precise vehicle heights |
| CN103282688A (en) * | 2011-01-17 | 2013-09-04 | 坦尼科汽车操作有限公司 | Damper tube reinforcement sleeve |
| WO2014138076A1 (en) * | 2013-03-07 | 2014-09-12 | Tenneco Automotive Operating Company Inc. | Jounce bumper nose retaining feature for a shock absorber |
| CN203297460U (en) * | 2013-05-22 | 2013-11-20 | 宁波南方减震器制造有限公司 | Bidirectional buffer damper |
| CN203297465U (en) * | 2013-05-22 | 2013-11-20 | 宁波南方减震器制造有限公司 | Dual-sealing hydraulic damper |
| CN203477156U (en) * | 2013-10-16 | 2014-03-12 | 博尔德汽车零部件(海宁)有限公司 | Hydraulic shock absorber |
| CN203743292U (en) * | 2013-12-26 | 2014-07-30 | 比亚迪股份有限公司 | Piston rod assembly for shock absorber, shock absorber with piston rod assembly, and vehicle with shock absorber |
| CN203641385U (en) * | 2014-01-03 | 2014-06-11 | 温州龙腾汽车配件有限公司 | Adjustable-barrel shock absorber |
| CN203670580U (en) * | 2014-01-06 | 2014-06-25 | 浙江中兴减震器制造有限公司 | Steering anti-roll shock absorber |
| CN203836061U (en) * | 2014-05-20 | 2014-09-17 | 宁波凯瑞汽车零部件有限公司 | Shock absorber for steering engine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105692459A (en) * | 2016-04-07 | 2016-06-22 | 徐州重型机械有限公司 | Vibration reduction structure and crane |
| CN105692459B (en) * | 2016-04-07 | 2019-01-08 | 徐州重型机械有限公司 | Vibration-proof structure and crane |
| CN106523573A (en) * | 2016-12-27 | 2017-03-22 | 浙江名震机械制造有限公司 | Double-lifting-ring large-base electric vehicle damper |
| CN106678260A (en) * | 2016-12-27 | 2017-05-17 | 浙江名震机械制造有限公司 | Automobile damper |
| CN112128287A (en) * | 2020-10-26 | 2020-12-25 | 常德市俊德科技发展有限公司 | Can prevent into pneumatic bumper shock absorber of dust |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104500638B (en) | 2017-11-21 |
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