CN204493569U - The adjustable changeable load hydraulic bjuffer of porous - Google Patents
The adjustable changeable load hydraulic bjuffer of porous Download PDFInfo
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- CN204493569U CN204493569U CN201520160195.6U CN201520160195U CN204493569U CN 204493569 U CN204493569 U CN 204493569U CN 201520160195 U CN201520160195 U CN 201520160195U CN 204493569 U CN204493569 U CN 204493569U
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Abstract
The adjustable changeable load hydraulic bjuffer of a kind of porous, comprise base, inner casing, outer shell are rigidly connected with base is concentric; Inner casing is circumferentially with inner casing damping hole; Returnning spring is connected with bottom piston and inner casing, piston rod is connected with piston, piston outer wall offers piston damping hole, the front end of piston rod is provided with adjusting knob, locating stud matches with the guiding groove on piston rod through outer shell and end cap, is located piston sense of rotation by the guiding groove of piston rod.This device is according to the change curve of load, and offered the damping hole of the Changing Pattern distribution meeting load by interior cylinder wall surface, piston is provided with piston damping hole along outer wall, in buffering course, form the damping curve consistent with load curve, reaches the object of evenly buffering.And passing through adjusting knob and the guiding groove of piston rod end face, adjusting piston sense of rotation, the interior cylinder wall surface damping hole of change coordinates rule with piston damping hole, thus changes the damping curve of buffer, realizes cushioning different loads.
Description
Technical field
The utility model relates to buffer technology field, the hydraulic bjuffer that particularly a kind of shock-absorbing capacity being adapted to changeable load is good.
Background technique
In daily life and production practices, a large amount of vibrations and impact are present in machinery, affect the normal operation of machinery.Along with the development of science and technology, the harm that people recognize vibration gradually and impact machinery, proposes the various method reducing to impact.Wherein, between impact part, reload buffer device is modal a kind of scheme.Buffer is widely used in the machinery such as weaponry, lifting transport, harbour machinery, metallurgical machinery, vehicle, and it is the safety protection device slowing down rigid collision in equipment running process.Buffer can extend the action time of impulsive load, absorbs and transforms the effect energy of impulsive load, thus playing the effect of proterctive equipment.For different loads, need the buffer of various different structure to absorb the energy that external load acts on equipment, thus reach buffer function.
At present, most of buffer just carries out research and design for the situation of temporary impact load and constant load, and for case study little acted on for varying duty on buffer, the buffer just for specific use carries out particular study and design, there is no versatility.Due to himself structure, the reduction along with stroke reduces (reduction being mainly the damping hole gross area) by buffering efficiency gradually.For the load impacting of fluctuations, conventional hydraulic bjuffer only regulates impact main peak value, is not fine, and along with certain shock and vibration, cannot cushions stably its impact the shock-absorbing capacity of impact additional peak.In addition, existing buffer is carry out designing for specific single operating mode and load, and under design conditions, damping property is good, and after actual conditions and load change, its performance declines to some extent.
In order to improve under many varying load effects hydraulic bjuffer cushion effect to the adaptivity of varying load, need to design the structure of hydraulic bjuffer damping hole, to solve varying load effect lower bumper cushion effect and the unmatched situation of load in modern machinery and equipment.
Model utility content
The utility model requires a kind of changeable load hydraulic bjuffer of design, and this buffer can cushion for the load under multiple change curve, and has good shock-absorbing capacity and adaptive performance.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: the adjustable changeable load hydraulic bjuffer of a kind of porous, and comprise base, inner casing, outer shell are rigidly connected with base is concentric; Inner casing is circumferentially with inner casing damping hole; Returnning spring is connected with bottom piston and inner casing, piston rod is connected with piston, piston rod and piston to-and-fro motion under Returnning spring and load effect, piston outer wall offers piston damping hole, the front end of piston rod is provided with adjusting knob, the angle direction of adjusting knob adjusting piston, locating stud matches with the guiding groove on piston rod through outer shell and end cap, is located piston sense of rotation by the guiding groove of piston rod.
As the piston moves, piston damping hole and damping hole form the corresponding damping curve with load.
Guiding groove on described piston rod has multiple tracks, matches to carry out circumference to piston and locate with locating stud; After regulating piston sense of rotation, locating stud resets in guiding groove under action of reset spring.
Be provided with the first seal arrangement between piston rod and end cap, between inner casing and outer shell, be provided with the second seal arrangement.
End cap and piston rod are equipped with, and are provided with scale at the end face of end cap, the damping characteristics of the corresponding certain loads of each scale.
Piston has through hole along the axial and circumferential directions, and piston end surface is provided with groove, is provided with groove bottom inner casing, and spring is connected with inner casing bottom groove and described piston end surface groove.
By technique scheme, the changeable load hydraulic bjuffer that the utility model provides is that porous is adjustable, and the beneficial effect had during its actual use is:
1, according to the change curve of load, in it, casing wall is provided with the different damping hole in a series of aperture, piston circumference is also provided with the through hole of some, when piston moves, the flow that fluid flows through aperture constantly changes, thus the damping changed, its curve is consistent with load curve, reaches the object of evenly buffering.
2, piston rod end is provided with adjusting knob, the relative position of adjusting piston circumferential through-hole and damping hole, thus changes damping curve, under being applicable to the operating mode of different varying load.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is overall structure sectional view of the present utility model.
Fig. 2 is side cross-sectional, view of the present utility model.
Fig. 3 is piston structure figure.
Embodiment
Structure of the present utility model is as Figure 1-3: the adjustable changeable load hydraulic bjuffer of a kind of porous, and comprise base 14, inner casing 8, outer shell 9 are rigidly connected with base 14 is concentric; The circumferential inner casing damping hole 12 of inner casing 8; Returnning spring 13 is connected with bottom piston 10 and inner casing 8, piston rod 2 is connected with piston 10, piston rod 2 and piston 10 to-and-fro motion under Returnning spring 13 and load effect, piston 10 outer wall offers piston damping hole 11, the front end of piston rod 2 is provided with adjusting knob 1, the angle direction of adjusting knob 1 adjusting piston 10, locating stud 5 matches with the guiding groove 3 on piston rod 2 through outer shell 9 and end cap 4, is located piston 10 sense of rotation by the guiding groove of piston rod 2.
When piston 10 moves, piston damping hole 11 forms the corresponding damping curve with load with damping hole 12.
Guiding groove 3 on described piston rod 2 has multiple tracks, matches to carry out circumference to piston and locate with locating stud 5; After regulating piston 10 sense of rotation, locating stud 5 resets in guiding groove under Returnning spring 13 acts on.
Be provided with the first seal arrangement 7 between piston rod 2 and end cap 4, between inner casing 8 and outer shell 9, be provided with the second seal arrangement 15.
End cap 4 is equipped with piston rod 2, is provided with scale at the end face of end cap 4, the damping characteristics of the corresponding certain loads of each scale.
Piston 10 has through hole along the axial and circumferential directions, and piston end surface is provided with groove, is provided with groove bottom inner casing, and spring is connected with inner casing bottom groove and described piston end surface groove.
In the utility model, outer shell, inner casing are all fixedly connected with end cap with bottom, and Returnning spring is connected with piston and inner casing, the to-and-fro motion under the effect of load and spring of piston and piston rod.
According to the requirement of design initial parameters, by calculating the distribution of inner casing damping hole 12 and piston damping hole 11, meet the needs of multiple live load.
Working principle of the present utility model is as follows: when piston 10 be subject to load impacting move right time, inner casing damping hole 12 constantly changes with the area that is communicated with in piston damping hole 11, the gross area change that it is communicated with is consistent with the change of load, the hydraulic oil in A chamber enters outer shell 9 by the connected part in the damping hole of inner casing right part and inner casing damping hole 12 and piston damping hole 11 under the effect of load, plays the effect of buffering.
Locating stud 5 is positioned at outside outer shell 9, locating stud 5 is set with retaining spring 6, is positioned by the angle direction of guiding groove to piston of piston rod.When extraneous load changes, mention locating stud 5, rotation of adjustment knob 1 is to corresponding end cap scale, and now piston rotates a certain angle, inner casing damping hole 12 is communicated with area with piston damping hole 11 and changes, and the gross area change that it is communicated with is consistent with the change of new load; Then unclamp locating stud 5, locating stud 5 gets back to guiding groove 3 under the effect of retaining spring 6, plays leading role.The damping curve of buffer can be changed, thus realize cushioning different loads.
Claims (6)
1. the adjustable changeable load hydraulic bjuffer of porous, comprises base (14), it is characterized in that: inner casing (8), outer shell (9) are rigidly connected with base (14) is concentric, the circumferential inner casing damping hole (12) of inner casing (8), Returnning spring (13) is connected with piston (10) and inner casing (8) bottom, piston rod (2) is connected with piston (10), piston rod (2) and piston (10) to-and-fro motion under Returnning spring (13) and load effect, piston (10) outer wall offers piston damping hole (11), the front end of piston rod (2) is provided with adjusting knob (1), the angle direction of adjusting knob (1) adjusting piston (10), locating stud (5) matches with the guiding groove (3) on piston rod (2) through outer shell (9) and end cap (4), by the guiding groove of piston rod (2), piston (10) sense of rotation is located.
2. the adjustable changeable load hydraulic bjuffer of a kind of porous according to claim 1, is characterized in that: when piston (10) moves, piston damping hole (11) form the corresponding damping curve with load with damping hole (12).
3. the adjustable changeable load hydraulic bjuffer of a kind of porous according to claim 1, is characterized in that: the guiding groove (3) on described piston rod (2) has multiple tracks, matches to carry out circumference to piston and locate with locating stud (5); After regulating piston (10) sense of rotation, locating stud (5) resets in guiding groove under Returnning spring (13) effect.
4. the adjustable changeable load hydraulic bjuffer of a kind of porous according to claim 1, it is characterized in that: between piston rod (2) and end cap (4), be provided with the first seal arrangement (7), between inner casing (8) and outer shell (9), be provided with the second seal arrangement (15).
5. the adjustable changeable load hydraulic bjuffer of a kind of porous according to claim 1, is characterized in that: end cap (4) is equipped with piston rod (2), is provided with scale at the end face of end cap (4), the damping characteristics of the corresponding certain loads of each scale.
6. the adjustable changeable load hydraulic bjuffer of a kind of porous according to claim 1, it is characterized in that: piston (10) has through hole along the axial and circumferential directions, piston end surface is provided with groove, is provided with groove bottom inner casing, and spring is connected with inner casing bottom groove and described piston end surface groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520160195.6U CN204493569U (en) | 2015-03-21 | 2015-03-21 | The adjustable changeable load hydraulic bjuffer of porous |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520160195.6U CN204493569U (en) | 2015-03-21 | 2015-03-21 | The adjustable changeable load hydraulic bjuffer of porous |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204493569U true CN204493569U (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520160195.6U Expired - Fee Related CN204493569U (en) | 2015-03-21 | 2015-03-21 | The adjustable changeable load hydraulic bjuffer of porous |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204493569U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712701A (en) * | 2015-03-21 | 2015-06-17 | 三峡大学 | Multi-hole adjustable multi-variable-load hydraulic buffer |
| CN107991075A (en) * | 2017-11-22 | 2018-05-04 | 上海思源高压开关有限公司 | A kind of breaker operation mechanism running-in testing apparatus |
| CN113639000A (en) * | 2021-08-23 | 2021-11-12 | 南京林业大学 | Double-oil-cylinder single-rod viscous fluid damper |
-
2015
- 2015-03-21 CN CN201520160195.6U patent/CN204493569U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712701A (en) * | 2015-03-21 | 2015-06-17 | 三峡大学 | Multi-hole adjustable multi-variable-load hydraulic buffer |
| CN107991075A (en) * | 2017-11-22 | 2018-05-04 | 上海思源高压开关有限公司 | A kind of breaker operation mechanism running-in testing apparatus |
| CN113639000A (en) * | 2021-08-23 | 2021-11-12 | 南京林业大学 | Double-oil-cylinder single-rod viscous fluid damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20160321 |