CN105276059A - Oil pressure damping buffer - Google Patents
Oil pressure damping buffer Download PDFInfo
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- CN105276059A CN105276059A CN201410321279.3A CN201410321279A CN105276059A CN 105276059 A CN105276059 A CN 105276059A CN 201410321279 A CN201410321279 A CN 201410321279A CN 105276059 A CN105276059 A CN 105276059A
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- hydraulic cylinder
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Abstract
The invention discloses an oil pressure damping buffer. The oil pressure damping buffer comprises a hydraulic cylinder, a push rod and a piston assembly. The hydraulic cylinder is filled with damping oil. The piston assembly is arranged in the hydraulic cylinder and installed at one end of the push rod. The piston assembly is composed of a piston body, an oil blocking component and a limiting component. The outer wall of the piston body makes contact with the inner wall of the hydraulic cylinder. The edge, making contact with the inner wall of the hydraulic cylinder, of the piston body is provided with multiple notches. Multiple oil holes are formed in the piston body. The oil blocking component is arranged between the piston body and the limiting component. The oil blocking component can move in the axial direction of the hydraulic cylinder relative to the piston body and covers the oil holes; the thickness of the oil blocking component is smaller than those of the piston body and the limiting component. Leakproofness is ensured, the phenomenon of oil leakage is avoided, the service life of products is greatly prolonged, and noise generated in the working process of the products can be greatly lowered.
Description
Technical field:
The present invention relates to buffer technology field, more specifically to a kind of hydraulic damping buffer.
Background technique:
Buffer is mainly used to suppress concussion when rebounding and impact, it mainly plays buffer function, less impact is with other structures in proterctive equipment, a large amount of buffer of the prior art is bumper, it mainly have employed the spring principle that Absorbable rod impacts in the process of compression to play the effect of buffering, the predominant use of spring buffer: blower fan, wind cabinet, air-conditioning box, air compressor, air-conditioner set, generator, the damping vibration-isolating of the equipment such as cooling tower, damper is adopted to establish if additional, then punch press can be applicable to, pressure, the isolating technique of the impingement equipment such as forging hammer machine.And the shortcoming of spring buffer is: 1. owing to there is the existing picture of self-vibration, easily transmit low-frequency vibration.2. damping is too little, and critical damping ratio generally only has 0.005, therefore can produce resonance phenomenon between device frequency zone of approach.3., because spring in use easily can be damaged due to fatigue, therefore its working condition neither be highly stable.
Summary of the invention:
Object of the present invention is just to provide a kind of hydraulic damping buffer, which ensures sealing, there will not be oil leakage phenomenon, substantially increases the working life of product, and it can also reduce the noise that product produces in working procedure more greatly in addition.
For achieving the above object, a kind of hydraulic damping buffer of the present invention, described buffer comprises oil hydraulic cylinder, push rod and piston assembly, in described oil hydraulic cylinder, there is damping oil, described piston assembly to be arranged in oil hydraulic cylinder and to be arranged on one end of push rod, described piston assembly is by piston only, oil resistance parts and limit position part are formed, the outer wall of described piston only contacts with the inwall of oil hydraulic cylinder, the outer rim that described piston only contacts with the inwall of oil hydraulic cylinder is provided with some breach, described piston only is also provided with some oilholes, described oil resistance parts are arranged between piston only and limit position part, described oil resistance parts axially can move relative to piston only along oil hydraulic cylinder, oilhole covers in by described oil resistance parts and the thickness of described oil resistance parts is less than piston only and limit position part.
Preferred as technique scheme, is provided with the dynamic sealing system that automatically can regulate oil hydraulic cylinder internal oil pressure in described oil hydraulic cylinder.
Preferred as technique scheme, described dynamic sealing system comprises dynamic seal (packing) seat and elastic member, described dynamic seal (packing) seat to be movably arranged in oil hydraulic cylinder and the described outer wall of dynamic seal (packing) seat and the contact internal walls of oil hydraulic cylinder, and described elastic member elastic acting force is on dynamic seal (packing) seat.
Preferred as technique scheme, described elastic member is spring, the one end open place of described oil hydraulic cylinder is provided with inner cap, described dynamic seal (packing) seat is provided with spring seat and seal ring, cover in one end of described spring is fixed on, the other end is fixed on spring seat, described push rod is successively through inner cap, spring seat, seal ring and dynamic seal (packing) seat.
Preferred as technique scheme, the outer wall of described dynamic seal (packing) seat is provided with O RunddichtringO, and described O RunddichtringO contacts with the inwall of oil hydraulic cylinder.
Preferred as technique scheme, the one end open place of described oil hydraulic cylinder and the arranged outside being positioned at inner cap has enclosing cover, described outer covering is provided with O RunddichtringO, the contact internal walls of described O RunddichtringO and oil hydraulic cylinder, and described push rod passes described enclosing cover.
Preferred as technique scheme, described outer covering is provided with seal ring, the exterior surface of described seal ring and push rod.
Preferred as technique scheme, described piston only is made up of flat plate-like portion and handle portion, described plate-like portion is vertical with handle portion, described oil resistance parts are thin plate-shaped structure, described limit position part is sleeve-like configuration, described oil resistance component activity is arranged in handle portion, and described limit position part is fixed in handle portion, and described handle portion is connected with push rod.
Preferred as technique scheme, the other end of described oil hydraulic cylinder is provided with perforation, is provided with steel ball in described perforation.
Preferred as technique scheme, described push rod is provided with connected element away from one end of oil hydraulic cylinder.
Beneficial effect of the present invention is: the invention provides a kind of novel buffer structure, which ensure sealing, there will not be oil leakage phenomenon, substantially increase the working life of product, in addition, a kind of hydraulic damping buffer of the present embodiment, due to the ability that automatically resets of spring, volume in oil hydraulic cylinder automatically adjusts along with moving of push rod, greatly can reduce the noise that product produces in working procedure again, the internal pressure of oil hydraulic cylinder can be reduced simultaneously, the working life of further raising oil hydraulic cylinder, lamps structure is simple, feature easy to use, and it also has the feature of stable working.
Accompanying drawing illustrates:
Below in conjunction with accompanying drawing, the present invention is described further:
Fig. 1 is the structural representation of the embodiment of the present invention
Fig. 2 is the mounting structure schematic diagram of piston assembly and push rod in the embodiment of the present invention
Fig. 3 is the mounting structure schematic diagram of piston assembly and push rod in the embodiment of the present invention
Fig. 4 is the perspective exploded view of piston assembly in the embodiment of the present invention
Fig. 5 is the plan view of piston only in the embodiment of the present invention
Fig. 6 is the sectional view of Fig. 4
Fig. 7 is the working principle schematic diagram of the embodiment of the present invention
Fig. 8 is the working principle schematic diagram of the embodiment of the present invention
In figure: 1, oil hydraulic cylinder; 2, push rod; 3, enclosing cover; 4, spring seat; 5, dynamic seal (packing) seat; 6, limit position part; 7, piston only; 8, oil resistance parts; 9, seal ring; 10, O RunddichtringO; 11, elastic member; 12, piston assembly; 13, inner cap; 14, connected element; 15, steel ball; 71, plate-like portion; 72, breach; 73, oilhole; 74, handle portion.
Embodiment:
The following stated is only the preferred embodiment embodying the principle of the invention, does not therefore limit protection scope of the present invention
Embodiment: be the embodiment of a kind of hydraulic damping buffer of the present invention as shown in Figures 1 to 6, described buffer comprises oil hydraulic cylinder 1, push rod 2 and piston assembly 12, in described oil hydraulic cylinder 1, there is damping oil, damping oil specifically in the present embodiment is hydraulic oil, in addition, the face, rank street of oil hydraulic cylinder 1 can be any regular shape, specific in the present embodiment, the cross section of oil hydraulic cylinder 1 is toroidal, described piston assembly 12 to be arranged in oil hydraulic cylinder 1 and to be arranged on one end of push rod 2, described piston assembly 12 is by piston only 7, oil resistance parts 8 and limit position part 6 are formed, the outer wall of described piston only 7 contacts with the inwall of oil hydraulic cylinder 1, the outer rim that described piston only 7 contacts with the inwall of oil hydraulic cylinder 1 is provided with some breach 72, specific in the present embodiment, the quantity of breach 72 is four, four breach 72 are in annular array distribution equably, described piston only 7 is also provided with some oilholes 73, oilhole 73 is circular port, in the present embodiment, the quantity of oilhole 73 is four, oilhole 73 and breach 72 stagger angle definitely mutually, oilhole 73 and the shaping of breach 72 adopt the removal material ground processing mode in mechanical processing process to obtain, the such as mode of boring or hole milling, bad to the required precision of oilhole 73 and breach 72 in the present embodiment, can directly be obtained by one cast molding, and four oilhole 73 also circular array distributions, described oil resistance parts 8 are arranged between piston only 7 and limit position part 6, described oil resistance parts 8 axially can move relative to piston only 7 along oil hydraulic cylinder 1, oilhole 73 covers in by described oil resistance parts 8 and the thickness of described oil resistance parts 8 is less than piston only 7 and limit position part 6, therefore there is gap between piston only 7 and oil resistance parts 8, this gap is 0.3mm, and the oil hydraulic cylinder 1 in the present embodiment need meet requirement of strength, the wall thickness of oil hydraulic cylinder 1 and material need meet requirement of strength, the material of oil hydraulic cylinder 1 can be light alloy or the high strength hard plastics of high strength, specific in the present embodiment, the cross section of push rod 2 can be any regular shape, specific in the present embodiment, the cross section of push rod 2 is circular, and the push rod 2 in the present embodiment adopts alloyed steel to obtain.
The dynamic sealing system that automatically can regulate oil hydraulic cylinder 1 internal oil pressure is provided with in oil hydraulic cylinder 1.
Specific in the present embodiment, above-mentioned dynamic sealing system comprises dynamic seal (packing) seat 5 and elastic member 11, described dynamic seal (packing) seat 5 to be movably arranged in oil hydraulic cylinder 1 and the outer wall of described dynamic seal (packing) seat 5 and the contact internal walls of oil hydraulic cylinder 1, and described elastic member 11 elastic acting force is on dynamic seal (packing) seat 5.
Elastic member 11 in the present embodiment is spring, the one end open place of described oil hydraulic cylinder 1 is provided with inner cap 13, described dynamic seal (packing) seat 5 is provided with spring seat 4 and seal ring 9, one end of described spring is fixed on inner cap 13, the other end is fixed on spring seat 4, described push rod 2 is successively through inner cap 13, spring seat 4, seal ring 9 and dynamic seal (packing) seat 5, in the present embodiment, seal ring 9 is arranged in the endoporus of dynamic seal (packing) seat 5, here seal ring 9 enhanced leaktightness mentioned, prevent damping oil from flowing out from the basic part of push rod 2 and dynamic seal (packing) seat 5, and the dynamic seal (packing) seat 5 in the present embodiment is the circular cylindrical shape block cooperatively interacted with oil hydraulic cylinder 1 inner chamber, spring seat 4 is then catwalk block structure, spring is fixed on the little head end of catwalk block, the stub end of catwalk block is then fixed with dynamic seal (packing) seat 5.
The outer wall of dynamic seal (packing) seat 5 is provided with O RunddichtringO 10, described O RunddichtringO 10 contacts with the inwall of oil hydraulic cylinder 1, specifically, the outer wall of dynamic seal (packing) seat 5 is provided with the groove of annular, O RunddichtringO 10 arranges in a groove and is located in a groove by the elastic reaction of self, and O RunddichtringO 10 here strengthens seal action and can prevent damping oil from flowing out from the space between dynamic sealing seat 5 and oil hydraulic cylinder 1 inwall.
The one end open place of the oil hydraulic cylinder 1 and arranged outside being positioned at inner cap 13 has enclosing cover 3, described enclosing cover 3 is provided with O RunddichtringO 10, and the contact internal walls of described O RunddichtringO 10 and oil hydraulic cylinder 1, described push rod 2 is through described enclosing cover 3.
Enclosing cover 3 is provided with seal ring 9, the exterior surface of described seal ring 9 and push rod 2.
Piston only 7 is made up of flat plate-like portion 71 and handle portion 74, described plate-like portion 71 is vertical with handle portion 74, described oil resistance parts 8 are thin plate-shaped structure, described limit position part 6 is sleeve-like configuration, described oil resistance parts 8 are movably arranged in handle portion 74, described limit position part 6 is fixed in handle portion 74, and described handle portion 74 is connected with push rod 2.
The other end of oil hydraulic cylinder 1 is provided with perforation, is provided with steel ball 15 in described perforation.
Push rod 2 is provided with connected element 14 away from one end of oil hydraulic cylinder 1.
As shown in Figure 7, the up end motion along the direction of arrow from lower end of piston assembly 12 in the present embodiment, now damping oil from oilhole 73 active force in oil resistance parts 8, because oil resistance parts 8 are movable setting, and there is gap between oil resistance parts 8 and piston only 7, therefore oil resistance parts 8 are opened, damping oil can pass through from oilhole 73 and breach 72, now the damping force that receives of piston is minimum, when push rod 2 enters oil hydraulic cylinder 1 time, pressure increase in oil hydraulic cylinder 1, spring now in dynamic sealing system compresses and carrys out less pressure finally reach pressure balance by increasing oil hydraulic cylinder 1 internal volume under pressure force, can effectively prevent in this process because pressure is excessive and occur oil leakage phenomenon.
As shown in Figure 8, the down end motion along the direction of arrow from upper end of piston assembly 12 in the present embodiment, in this process, due to the active force of damping oil, oilhole 73 covers by oil resistance parts 8, in this process, oilhole 73 blocks obstructed oil, damping oil is only to pass through breach 72, the damping force that piston assembly 12 receives is larger, when push rod 2 exits oil hydraulic cylinder 1, the inner space of oil hydraulic cylinder 1 increases, correspondingly pressure is just less, now spring drives dynamic seal (packing) seat 5 to stretch out, this process finally can reach pressure balance by the inner space reducing oil hydraulic cylinder 1 to increase pressure.
In sum, the invention provides a kind of novel buffer structure, which ensure sealing, there will not be oil leakage phenomenon, substantially increase the working life of product, in addition, a kind of hydraulic damping buffer of the present embodiment, due to the ability that automatically resets of spring, volume in oil hydraulic cylinder automatically adjusts along with moving of push rod, greatly can reduce the noise that product produces in working procedure again, the internal pressure of oil hydraulic cylinder can be reduced simultaneously, the working life of further raising oil hydraulic cylinder, lamps structure is simple, feature easy to use, and it also has the feature of stable working.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (10)
1. a hydraulic damping buffer, described buffer comprises oil hydraulic cylinder (1), push rod (2) and piston assembly (12), described oil hydraulic cylinder has damping oil in (1), described piston assembly (12) to be arranged in oil hydraulic cylinder (1) and to be arranged on one end of push rod (2), it is characterized in that, described piston assembly (12) is by piston only (7), oil resistance parts (8) and limit position part (6) are formed, the outer wall of described piston only (7) contacts with the inwall of oil hydraulic cylinder (1), the outer rim that described piston only (7) contacts with the inwall of oil hydraulic cylinder (1) is provided with some breach (72), described piston only (7) is also provided with some oilholes (73), described oil resistance parts (8) are arranged between piston only (7) and limit position part (6), described oil resistance parts (8) axially can be moved relative to piston only (7) along oil hydraulic cylinder (1), described oil resistance parts (8) are covered in by oilhole (73) and the thickness of described oil resistance parts (8) is less than piston only (7) and limit position part (6).
2. a kind of hydraulic damping buffer according to claim 1, is characterized in that, is provided with the dynamic sealing system that automatically can regulate oil hydraulic cylinder (1) internal oil pressure in described oil hydraulic cylinder (1).
3. a kind of hydraulic damping buffer according to claim 2, it is characterized in that, described dynamic sealing system comprises dynamic seal (packing) seat (5) and elastic member (11), described dynamic seal (packing) seat (5) to be movably arranged in oil hydraulic cylinder (1) and the contact internal walls of the outer wall of described dynamic seal (packing) seat (5) and oil hydraulic cylinder (1), and described elastic member (11) elastic acting force is on dynamic seal (packing) seat (5).
4. a kind of hydraulic damping buffer according to claim 3, it is characterized in that, described elastic member (11) is spring, the one end open place of described oil hydraulic cylinder (1) is provided with inner cap (13), described dynamic seal (packing) seat (5) is provided with spring seat (4) and seal ring (9), one end of described spring is fixed on inner cap (13), the other end is fixed on spring seat (4), and described push rod (2) is successively through inner cap (13), spring seat (4), seal ring (9) and dynamic seal (packing) seat (5).
5. a kind of hydraulic damping buffer according to claim 4, it is characterized in that, the outer wall of described dynamic seal (packing) seat (5) is provided with O RunddichtringO (10), and described O RunddichtringO (10) contacts with the inwall of oil hydraulic cylinder (1).
6. a kind of hydraulic damping buffer according to claim 4, it is characterized in that, the one end open place of described oil hydraulic cylinder (1) and the arranged outside being positioned at inner cap (13) has enclosing cover (3), described enclosing cover (3) is provided with O RunddichtringO (10), the contact internal walls of described O RunddichtringO (10) and oil hydraulic cylinder (1), described push rod (2) is through described enclosing cover (3).
7. a kind of hydraulic damping buffer according to claim 6, is characterized in that, described enclosing cover (3) is provided with seal ring (9), the exterior surface of described seal ring (9) and push rod (2).
8. a kind of hydraulic damping buffer according to claim 1, it is characterized in that, described piston only (7) is made up of flat plate-like portion (71) and handle portion (74), described plate-like portion (71) is vertical with handle portion (74), described oil resistance parts (8) are thin plate-shaped structure, described limit position part (6) is sleeve-like configuration, described oil resistance parts (8) are movably arranged in handle portion (74), described limit position part (6) is fixed in handle portion (74), and described handle portion (74) is connected with push rod (2).
9. a kind of hydraulic damping buffer according to claim 4, is characterized in that, the other end of described oil hydraulic cylinder (1) is provided with perforation, is provided with steel ball (15) in described perforation.
10. a kind of hydraulic damping buffer according to any one of claim 1 to 9, is characterized in that, described push rod (2) is provided with connected element (14) away from one end of oil hydraulic cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410321279.3A CN105276059A (en) | 2014-07-04 | 2014-07-04 | Oil pressure damping buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410321279.3A CN105276059A (en) | 2014-07-04 | 2014-07-04 | Oil pressure damping buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105276059A true CN105276059A (en) | 2016-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410321279.3A Pending CN105276059A (en) | 2014-07-04 | 2014-07-04 | Oil pressure damping buffer |
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| Country | Link |
|---|---|
| CN (1) | CN105276059A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200971945Y (en) * | 2006-11-21 | 2007-11-07 | 陆凯 | Double-changed damping shock-absorber |
| CN101429984A (en) * | 2008-12-01 | 2009-05-13 | 江阴强顺科技有限公司 | Hydraulic damper with excellent leak tightness |
| CN201363385Y (en) * | 2009-02-18 | 2009-12-16 | 杜成华 | Damper |
| CN101672339A (en) * | 2009-09-30 | 2010-03-17 | 伍志勇 | furniture damper |
| CN201636258U (en) * | 2010-04-08 | 2010-11-17 | 长春孔辉汽车科技有限公司 | Electric control adjustable damping shock absorber |
-
2014
- 2014-07-04 CN CN201410321279.3A patent/CN105276059A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200971945Y (en) * | 2006-11-21 | 2007-11-07 | 陆凯 | Double-changed damping shock-absorber |
| CN101429984A (en) * | 2008-12-01 | 2009-05-13 | 江阴强顺科技有限公司 | Hydraulic damper with excellent leak tightness |
| CN201363385Y (en) * | 2009-02-18 | 2009-12-16 | 杜成华 | Damper |
| CN101672339A (en) * | 2009-09-30 | 2010-03-17 | 伍志勇 | furniture damper |
| CN201636258U (en) * | 2010-04-08 | 2010-11-17 | 长春孔辉汽车科技有限公司 | Electric control adjustable damping shock absorber |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 315318, No. 1518, Yangmei Avenue South Road, Ningbo, Zhejiang, Cixi Applicant after: Ningbo Yusheng Home Technology Co., Ltd. Address before: Meiyuan Village of Henghe town of Cixi city of Zhejiang Province, Ningbo City, 315300 Applicant before: CIXI YUSHUN ELECTRICAL APPLIANCE CO., LTD. |
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| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160127 |
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| RJ01 | Rejection of invention patent application after publication |