CN108087471B - Duplex annular spring buffer device - Google Patents
Duplex annular spring buffer device Download PDFInfo
- Publication number
- CN108087471B CN108087471B CN201810064804.6A CN201810064804A CN108087471B CN 108087471 B CN108087471 B CN 108087471B CN 201810064804 A CN201810064804 A CN 201810064804A CN 108087471 B CN108087471 B CN 108087471B
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- China
- Prior art keywords
- annular outer
- connecting plate
- annular
- spring
- outer ring
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- 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.)
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- 239000000872 buffer Substances 0.000 title claims abstract description 52
- 229920002635 polyurethane Polymers 0.000 claims abstract description 16
- 239000004814 polyurethane Substances 0.000 claims abstract description 16
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000008093 supporting effect Effects 0.000 abstract description 8
- 230000003139 buffering effect Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 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
- F16F7/00—Vibration-dampers; Shock-absorbers
Abstract
The invention discloses a duplex annular spring buffer device which comprises a first annular outer ring, a second annular outer ring, a first connecting plate, a second connecting plate, a shell and two groups of buffer units. The buffer unit comprises a bracket barrel, an annular spring, a piston rod, a sleeve nut, a flange bushing, a nut, a spring washer and two polyurethane washers. The support cylinder is arranged between the first annular outer ring and the second annular outer ring and is fixedly connected with the first annular outer ring and the second annular outer ring respectively, the inner cavity of the support cylinder is a third-order through hole, the annular spring and the polyurethane gasket with buffer function are arranged inside the support cylinder and limited by steps of the inner cavity of the support cylinder, and the piston rod penetrates through the through hole of the support cylinder and props against the polyurethane gasket positioned at the front end of the annular spring through the lower end face of the boss on the rod body. The device has the functions of supporting and guiding while meeting the buffering function of the buffer, and has the advantages of simple and compact structure, small weight, high reliability and the like.
Description
Technical Field
The invention belongs to the impact load buffering technology, and particularly relates to a duplex annular spring buffering device.
Background
The buffer is a device for providing buffer at the motion stroke end, prolonging the action time of impact load, absorbing and converting the motion energy of the impact load, thereby reducing the adverse effect of mechanical impact on equipment as much as possible. The moving body is made of light alloy and is loaded with precise electronic instruments and other equipment, and the severe impact load generated during working can bring huge recoil to the moving body. In order to prevent the moving body and the bearing support structure and the electronic equipment from being damaged in the process of launching and to realize the backseat and the reset function of the moving body, a corresponding buffer device is required to be added to the moving body.
However, the conventional moving body buffer device mostly adopts a mode of arranging a plurality of groups of brackets and guide rails on the shell, the buffer assembly and the moving body to finish supporting and guiding, which not only brings difficulty to assembly and positioning, but also increases the mass of the system. At the same time, the increased number of parts results in reduced reliability of the system under dynamic loads. This is contrary to the demand for small, lightweight, high reliability buffers.
Chinese patent 201620582155.5 discloses a guide rail buffer comprising a housing provided with a guide groove and a hollow hole, a buffer frame, a rack in the hollow hole, a gear assembly capable of rotating relative to the buffer frame, and a spring. The scheme does not have a supporting and guiding structure of an impact object, and a guide rail and a support are additionally arranged for the impact object.
Chinese patent 201420656951.X discloses a guide rail buffer comprising a bracket, a damper, springs on both side brackets, a slider, and a fork provided on the slider, wherein the bracket is provided with a space for accommodating the damper, and further comprises a pair of bayonets. The scheme adopts a bayonet structure which is clamped with a fixed rail and is symmetrically arranged on two sides of a buffer bracket respectively. The scheme does not have a supporting and guiding structure of the impact object, and a guide rail and a bracket are additionally arranged for the impact object, so that the guide rail and the buffer are still separated independently, and positioning is difficult during assembly.
Disclosure of Invention
The invention aims to provide a duplex annular spring buffer device which has the functions of supporting and guiding while meeting the buffer function of a buffer, and solves the problems of difficult assembly and positioning, overlarge system quality, low reliability and the like caused by the arrangement of a plurality of groups of guide rails and brackets of the traditional moving body buffer device.
The solution for realizing the purpose of the invention is as follows: the utility model provides a duplex annular spring buffer, including first annular outer lane, the annular outer lane of second, first connecting plate, the second connecting plate, shell and two sets of buffer unit, first annular outer lane and the parallel interval setting of second annular outer lane are in the shell, first annular outer lane inner wall symmetry is equipped with a pair of mounting hole, second annular outer lane inner wall symmetry is equipped with a pair of mounting hole, a set of buffer unit passes a mounting hole on the first annular outer lane and a mounting hole on the second annular outer lane simultaneously, the moving body sets up in the shell, and pass first annular outer lane and second annular outer lane, moving body one end links firmly with first connecting plate center, the other end links firmly with second connecting plate center, first connecting plate both ends cover respectively on buffer unit, second connecting plate both ends cover respectively on buffer unit.
Compared with the prior art, the invention has the remarkable advantages that: (1) The buffer unit has the functions of supporting and guiding, replaces a plurality of groups of brackets and guide rails arranged on the traditional buffer, facilitates assembly and positioning, reduces the system quality and improves the reliability of the system; (2) When the buffer works, all groups of threaded connectors are not directly subjected to axial impact load, so that the connection is tight and the reliability is high; (3) The buffer device has compact integral structure, simple structure and convenient processing and manufacturing; (4) the cushioning properties are less affected by temperature.
Drawings
FIG. 1 is a schematic three-dimensional view of a dual ring spring damper according to the present invention.
Fig. 2 is a schematic structural view of a first annular outer ring and a second annular outer ring according to the present invention.
Fig. 3 is a schematic structural view of the stent tube of the present invention.
Fig. 4 is a schematic structural view of the piston rod of the present invention.
Fig. 5 is a schematic diagram of an assembly structure of the buffer unit of the present invention.
FIG. 6 is a cross-sectional view of the overall structure of a dual ring spring damper of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
Referring to fig. 1 to 6, a duplex annular spring buffer device includes a first annular outer ring 6, a second annular outer ring 11, a first connecting plate 5, a second connecting plate 12, a housing 14 and two groups of buffer units, wherein the first annular outer ring 6 and the second annular outer ring 11 are arranged in the housing 14 at parallel intervals, a pair of mounting holes are symmetrically arranged on the inner wall of the first annular outer ring 6, a pair of mounting holes are symmetrically arranged on the inner wall of the second annular outer ring 11, one group of buffer units simultaneously pass through one mounting hole on the first annular outer ring 6 and one mounting hole on the second annular outer ring 11, a moving body 13 is arranged in the housing 14 and does not contact with the first annular outer ring 6 and the second annular outer ring 11, one end of the moving body 13 is fixedly connected with the center of the first connecting plate 5, the other end of the moving body is fixedly connected with the center of the second connecting plate 12, two ends of the first connecting plate 5 are respectively sleeved on the buffer units, and two ends of the second connecting plate 12 are respectively sleeved on the buffer units.
The buffer unit comprises a bracket barrel 9, an annular spring 7, a piston rod 4, a sleeve nut 3, a flange bushing 10, a nut 1, a spring washer 2 and two polyurethane washers 8; the inner cavity of the support cylinder 9 is a third-order through hole, the first through hole, the second through hole and the third through hole are sequentially formed in the direction from the first annular outer ring 6 to the second annular outer ring 11, the support cylinder 9 is arranged between the first annular outer ring 6 and the second annular outer ring 11 and is fixedly connected with the first annular outer ring and the second annular outer ring through bolts respectively, a circle of boss is arranged on the rod body of the piston rod 4, the end face, close to the direction of the second annular outer ring 11, of the boss is a lower end face, the annular spring 7 is positioned in the second through hole, two polyurethane gaskets 8 are arranged at two ends of the annular spring 7 to reduce the rigidity of a ring spring system, the size of each polyurethane gasket 8 can be properly adjusted according to actual requirements, and the rigidity of a buffering system is guaranteed to reach a preset value. The piston rod 4 passes through the bracket barrel 9 and the annular springs 7 and the two polyurethane gaskets 8 therein, the lower end face of the boss is propped against the polyurethane gasket 8 positioned at the front end of the annular springs 7, when the annular springs 7 are not stressed, the flange bushing 10 comprises a flange plate and a sleeve fixedly connected with the flange plate, wherein the flange plate is fixedly connected with the rear end face of the second connecting plate 12, the sleeve is fixedly connected with the tail part of the piston rod 4 through threads and stretches into a third through hole to prop against the polyurethane gasket 8 positioned at the rear end of the annular springs 7, the sleeve nut 3 is sleeved on the boss of the piston rod 4 and fixedly connected with the first through hole through threads, and the front end face of the boss of the piston rod 4 props against the rear end face of the first connecting plate 5 and is compressed and limited through the nut 1 and the spring gasket 2.
The piston rod 4 is made into a hollow rod member to reduce the weight of the device
A circle of grooves are formed in the boss of the piston rod 4.
The first connecting plate 5 is in a long strip shape, a first through hole is formed in the center of the first connecting plate, second through holes are respectively formed in two ends of the first connecting plate, the first through hole is fixedly connected with the moving body 13, and the two second through holes are respectively sleeved on the piston rods 4 of the two groups of buffer units. The second connecting plate 12 is strip-shaped, a third through hole is arranged in the center, and fourth through holes are respectively arranged at the two ends, wherein the third through hole is fixedly connected with the moving body 13, and the two fourth through holes are respectively sleeved on the flange bushings 10 of the two groups of buffer units and are connected with the flange plates of the flange bushings through bolts.
When the buffer device works, the moving body 13 is subjected to impact load and then sits down, so that a system formed by the nut 1, the spring washer 22, the first connecting plate 3, the second connecting plate 12 of the piston rod 4 and the flange bushing 10 is driven to move backwards together, the movement of the piston rod 4 is limited by the flange bushing 10, the bracket barrel 9 and the sleeve nut 3, and only linear reciprocating movement can be performed, so that the guiding function in the recoil process of the backseat is realized. The length of the part of the boss, extending out of the sleeve nut 3, of the piston rod 4 is smaller than the maximum backseat travel of the moving body, so that the influence on the usability due to the formation of local steps caused by the reciprocating abrasion of the piston rod 4 is avoided.
The impact force acts on the piston rod 4 through the first connection plate 3, the second connection plate 11 and the flange bushing 10. The boss on the piston rod compresses the polyurethane gasket 8 and the annular spring 7, and the step of the step at the front end of the third through hole of the bracket barrel 8 is propped against the polyurethane gasket 8 and the annular spring 7, the polyurethane gasket 8 and the annular spring 7 are compressed, and the rear seat of the moving body is buffered. The greater impact load is ultimately transmitted to the housing 14 in the form of a smaller annular spring recoil through the carrier cylinder 9 and the second annular outer race 11. After the buffering is finished, the ring spring 7 which is compressed and deformed gradually returns to the original state, so that the piston rod system is reset and is ready to bear the next impact load. In the whole buffering process, the front connecting plate 4 is contacted with the boss front end face of the piston rod 4, the first annular outer ring 6 is contacted with the front flange end face of the bracket barrel 9, the rear flange end face of the bracket barrel 9 is contacted with the second annular outer ring 11, and the rear connecting plate 12 is contacted with the flange rear end face of the flange bushing 12. When the buffer works, each threaded connecting piece of the buffer unit is not subjected to larger axial impact load.
The weight of the moving body 13 is transmitted to the piston rod 4 through the first connecting plate 5 and the second connecting plate 12, and then transmitted to the first annular outer ring 6 and the second annular outer ring 11 through the sleeve nut 3, the flange bushing 10 and the bracket barrel 9, and a large round angle is arranged below the mounting holes of the first annular outer ring 6 and the second annular outer ring 11 so as to improve the supporting rigidity, and the weight of the moving body 13 is finally transmitted to the shell 14, so that the supporting effect on the whole transmitting system is achieved.
Claims (6)
1. The utility model provides a duplex ring spring buffer which characterized in that: including first annular outer lane (6), second annular outer lane (11), first connecting plate (5), second connecting plate (12), shell (14) and two sets of buffer unit, first annular outer lane (6) and second annular outer lane (11) parallel interval set up in shell (14), first annular outer lane (6) inner wall symmetry is equipped with a pair of mounting hole, second annular outer lane (11) inner wall symmetry is equipped with a pair of mounting hole, a set of buffer unit passes a mounting hole on first annular outer lane (6) and a mounting hole on second annular outer lane (11) simultaneously, moving body (13) set up in shell (14), and pass first annular outer lane (6) and second annular outer lane (11), moving body (13) one end links firmly with first connecting plate (5) center, the other end links firmly with second connecting plate (12) center, first connecting plate (5) both ends cover respectively on buffer unit, second connecting plate (12) both ends cover respectively on buffer unit.
2. The duplex ring spring cushioning device of claim 1 wherein: the buffer unit comprises a bracket barrel (9), an annular spring (7), a piston rod (4), a sleeve nut (3), a flange bushing (10), a nut (1), a spring washer (2) and two polyurethane washers (8); the inner cavity of the bracket barrel (9) is a third-order through hole, the first through hole, the second through hole and the third through hole are sequentially formed from the first annular outer ring (6) to the second annular outer ring (11), the bracket barrel (9) is arranged between the first annular outer ring (6) and the second annular outer ring (11) and fixedly connected with the first annular outer ring and the second annular outer ring respectively, a circle of boss is arranged on a rod body of the piston rod (4), the end face of the boss close to the second annular outer ring (11) is a lower end face, the annular spring (7) is positioned in the second through hole, two polyurethane washers (8) are positioned at two ends of the annular spring (7), the piston rod (4) passes through the bracket barrel (9) and the annular spring (7) and the two polyurethane washers (8), the lower end face of the boss is propped against the polyurethane washer (8) positioned at the front end of the annular spring (7), when the annular spring (7) is not stressed, the flange bush (10) comprises a flange plate and a sleeve fixedly connected with the flange plate, the rear end face of the second connecting plate (12) is fixedly connected with the sleeve plate, the sleeve is fixedly connected with the tail part of the piston rod (4) and stretches into the end face of the annular spring (4) and is propped against the end face of the boss (3) which is fixedly connected with the end face of the end cap (3), the compression limiting is carried out through the nut (1) and the spring washer (2).
3. The duplex ring spring cushioning device of claim 2 wherein: the piston rod (4) is a hollow rod piece.
4. A duplex ring spring cushioning device according to any of claims 2 or 3, wherein: a circle of grooves are formed in the boss of the piston rod (4).
5. The duplex ring spring cushioning device of claim 1 wherein: the first connecting plate (5) is of a strip shape, a first through hole is formed in the center of the first connecting plate, second through holes are respectively formed in the two ends of the first connecting plate, the first through hole is fixedly connected with the moving body (13), and the two second through holes are respectively sleeved on the two groups of buffer units.
6. The duplex ring spring cushioning device of claim 1 wherein: the second connecting plate (12) is in a long strip shape, a third through hole is formed in the center of the second connecting plate, fourth through holes are respectively formed in two ends of the second connecting plate, the third through holes are fixedly connected with the moving body (13), and the two fourth through holes are respectively sleeved on the two groups of buffer units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810064804.6A CN108087471B (en) | 2018-01-23 | 2018-01-23 | Duplex annular spring buffer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810064804.6A CN108087471B (en) | 2018-01-23 | 2018-01-23 | Duplex annular spring buffer device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108087471A CN108087471A (en) | 2018-05-29 |
| CN108087471B true CN108087471B (en) | 2023-11-28 |
Family
ID=62182612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810064804.6A Active CN108087471B (en) | 2018-01-23 | 2018-01-23 | Duplex annular spring buffer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108087471B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03172795A (en) * | 1989-11-30 | 1991-07-26 | Sanwa Tekki Corp | Hydraulic shock buffer device |
| CN102878234A (en) * | 2012-09-20 | 2013-01-16 | 北京睿力恒一物流技术股份公司 | Conical helical spring buffer |
| CN103256332A (en) * | 2013-04-23 | 2013-08-21 | 华中科技大学 | Positive and negative rigidity parallel connection shock absorber |
| CN104196954A (en) * | 2014-09-15 | 2014-12-10 | 哈尔滨工业大学 | Spring buffer and vibration isolation device for loading of electric cylinder of aviation rolling bearing tester |
| CN205298367U (en) * | 2015-11-28 | 2016-06-08 | 重庆永重重工有限公司 | Generator system damping device |
| CN205479071U (en) * | 2016-04-07 | 2016-08-17 | 安徽普源分离机械制造有限公司 | Distributed isolator of vibration ripples |
| CN205559665U (en) * | 2016-03-03 | 2016-09-07 | 柳州金鸿橡塑有限公司 | Car transmission system rubber torsional damper |
| CN106763474A (en) * | 2017-03-14 | 2017-05-31 | 北京控制工程研究所 | A kind of all-metal micro-vibration control device of active-passive integratedization |
| CN206708277U (en) * | 2017-04-28 | 2017-12-05 | 福州大学 | A kind of composite damper |
| CN206847892U (en) * | 2017-06-01 | 2018-01-05 | 南京理工大学 | A kind of tubular experimental provision for measuring buffer shock resistance |
| CN208074070U (en) * | 2018-01-23 | 2018-11-09 | 南京理工大学 | A kind of twin ring spring buffer unit |
-
2018
- 2018-01-23 CN CN201810064804.6A patent/CN108087471B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03172795A (en) * | 1989-11-30 | 1991-07-26 | Sanwa Tekki Corp | Hydraulic shock buffer device |
| CN102878234A (en) * | 2012-09-20 | 2013-01-16 | 北京睿力恒一物流技术股份公司 | Conical helical spring buffer |
| CN103256332A (en) * | 2013-04-23 | 2013-08-21 | 华中科技大学 | Positive and negative rigidity parallel connection shock absorber |
| CN104196954A (en) * | 2014-09-15 | 2014-12-10 | 哈尔滨工业大学 | Spring buffer and vibration isolation device for loading of electric cylinder of aviation rolling bearing tester |
| CN205298367U (en) * | 2015-11-28 | 2016-06-08 | 重庆永重重工有限公司 | Generator system damping device |
| CN205559665U (en) * | 2016-03-03 | 2016-09-07 | 柳州金鸿橡塑有限公司 | Car transmission system rubber torsional damper |
| CN205479071U (en) * | 2016-04-07 | 2016-08-17 | 安徽普源分离机械制造有限公司 | Distributed isolator of vibration ripples |
| CN106763474A (en) * | 2017-03-14 | 2017-05-31 | 北京控制工程研究所 | A kind of all-metal micro-vibration control device of active-passive integratedization |
| CN206708277U (en) * | 2017-04-28 | 2017-12-05 | 福州大学 | A kind of composite damper |
| CN206847892U (en) * | 2017-06-01 | 2018-01-05 | 南京理工大学 | A kind of tubular experimental provision for measuring buffer shock resistance |
| CN208074070U (en) * | 2018-01-23 | 2018-11-09 | 南京理工大学 | A kind of twin ring spring buffer unit |
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| Publication number | Publication date |
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| CN108087471A (en) | 2018-05-29 |
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Inventor after: Ge Jianli Inventor after: Wang Zihan Inventor after: Li Xuan Inventor after: Yu Xiaochuan Inventor before: Wang Zihan Inventor before: Ge Jianli Inventor before: Li Xuan Inventor before: Yu Xiaochuan |
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