CN203362703U - External buffer adjusting structure of guide sleeve of high-speed hydraulic cylinder - Google Patents
External buffer adjusting structure of guide sleeve of high-speed hydraulic cylinder Download PDFInfo
- Publication number
- CN203362703U CN203362703U CN 201320432849 CN201320432849U CN203362703U CN 203362703 U CN203362703 U CN 203362703U CN 201320432849 CN201320432849 CN 201320432849 CN 201320432849 U CN201320432849 U CN 201320432849U CN 203362703 U CN203362703 U CN 203362703U
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- CN
- China
- Prior art keywords
- guide sleeve
- buffer
- hydraulic cylinder
- buffering
- mounting hole
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses an external buffer adjusting structure of a guide sleeve of a high-speed hydraulic cylinder and belongs to the field of a buffering technology. The external buffer adjusting structure comprises the guide sleeve. The guide sleeve is provided with a mounting hole and a buffering oil passage, wherein the mounting hole is communicated with the outside and a main oil passage, and the buffering oil passage is communicated with the mounting hole and a buffering cavity. The external buffer adjusting structure further comprises a screw plug, a spring and a buffer adjusting valve element, wherein the screw plug seals the mounting hole, the spring is arranged at the lower end of the screw plug, and the buffer adjusting valve element is arranged at the lower end of the spring. The buffer adjusting valve element is communicated with the main oil passage and is located between the buffering oil passage and the main oil passage. A user can screw out the screw plug and then can conveniently take out and replace the buffer adjusting valve element, and consequently the purposes of being free of assembling and disassembling a cylinder body and quickly adjusting buffer performance are achieved. Work efficiency is promoted. The defect that the cylinder needs to be disassembled when the buffer performance is adjusted through a built-in buffer adjusting structure is overcome. Especially, a super-large hydraulic cylinder is cumbersome in assembling and disassembling operations and long in assembling and disassembling time.
Description
Technical field
The utility model relates to the buffer technology field, specifically a kind of high speed hydraulic cylinder guide sleeve external buffering regulation structure of regulating of being convenient to.
Background technique
Excavator is as one of most important engineering machinery, the volume of production and marketing increase year after year, and excavator hydraulic cylinder is one of kernel component as final executive component, its Environmental Conditions is severe, uninterrupted working time is long, compression shock is large, motion speed is fast.Buffer technology can solve mechanical impact and the On Hydraulic Shock of excavator hydraulic cylinder, is the core technology of excavator hydraulic cylinder.The matching of resolve buffer performance and main frame is the key of buffering research, in process, must carry out the adjusting of buffer parameter.
Hydraulic cylinder guide sleeve buffering adjusting form mostly is built-in at present, substantially adopts the orifice plug form, adjusts the latus rectum size of throttle orifice by changing orifice plug, to reach the purpose of regulating buffer parameter.But because orifice plug is arranged on oil cylinder inside, must pull down oil cylinder and guide sleeve is taken apart while changing orifice plug, as long as adjust a shock-absorbing capacity, just must tear cylinder open once, unloading process is loaded down with trivial details, especially on the large-tonnage oil cylinder, this drawback is particularly outstanding, has a strong impact on working efficiency.
The model utility content
For existing practical problem in above-mentioned, the utility model proposes a kind of high speed hydraulic cylinder guide sleeve external buffering regulation structure, it is the shock-absorbing capacity of regulator solution cylinder pressure conveniently.
The utility model is achieved through the following technical solutions: a kind of high speed hydraulic cylinder guide sleeve external buffering regulation structure, comprise guide sleeve, and have on described guide sleeve and be communicated with mounting hole and the buffering oil circuit that is communicated with mounting hole and buffer cavity outside and working connection; Also comprise the plug screw that is arranged on band sealing in mounting hole, be arranged on the spring of plug screw lower end, be arranged on the buffer regulating valve core of spring lower end; Described buffer regulating valve core communicates with working connection, between buffering oil circuit and working connection.
It is further: described plug screw is the countersunk head plug screw.
Adjacent described nuts below is provided with seal ring.
Be provided with pad between described plug screw and spring.
Compare with technology in the past, the utility model has the advantage of: by the plug screw of back-outing, can take out easily, the exchange buffering regulating spool, reach and exempt from dismounting oil cylinder body, realize the purpose of quick adjustment shock-absorbing capacity.
The accompanying drawing explanation
Fig. 1 is sectional view of the present utility model.
In figure: 1, guide sleeve; 2, plug screw; 3, seal ring; 4, pad; 5, spring; 6, buffer regulating valve core; 7, buffering oil circuit; 8, working connection.
Embodiment
Be below a specific embodiment of the present utility model, and be described further by reference to the accompanying drawings.
As shown in Figure 1, the utility model comprises guide sleeve 1, has on described guide sleeve 1 and is communicated with mounting hole and the buffering oil circuit 7 that is communicated with mounting hole and buffer cavity outside and working connection 8; Also comprise the plug screw 2 that is arranged on band sealing in mounting hole, be arranged on the spring 5 of plug screw 2 lower ends, be arranged on the buffer regulating valve core 6 of spring 5 lower ends; Described buffer regulating valve core 6 communicates with working connection 8, between buffering oil circuit 7 and working connection 8.
Described plug screw 2 is countersunk head plug screws, and plug screw 2 sinks to guide sleeve 1 fully.Adjacent described plug screw cap below is provided with seal ring 3, and seal ring 3, between plug screw 2 and guide sleeve 1, plays the effect of sealing oil circuit.Be provided with pad 4 between described plug screw 2 and spring 5.
During work, the starting stage of regaining at oil cylinder, buffer gap is very little, affecting oil cylinder regains fast, now buffer regulating valve core 6 is in situation lower spring 5 compressions of working connection 8 high pressure, form larger gap between with matching of the conical surface of buffer regulating valve core 6 and guide sleeve 1, fluid enters fast buffer cavity from this gap and realizes that oil hydraulic cylinder regains fast.
Claims (4)
1. a high speed hydraulic cylinder guide sleeve external buffering regulation structure, comprise guide sleeve (1), it is characterized in that: have on described guide sleeve (1) and be communicated with mounting hole and the buffering oil circuit (7) that is communicated with mounting hole and buffer cavity outside and working connection (8); Also comprise the plug screw (2) that is arranged on band sealing in mounting hole, be arranged on the spring (5) of plug screw (2) lower end, be arranged on the buffer regulating valve core (6) of spring (5) lower end; Described buffer regulating valve core (6) communicates with working connection (8), is positioned between buffering oil circuit (7) and working connection (8).
2. a kind of high speed hydraulic cylinder guide sleeve external according to claim 1 cushions regulation structure, and it is characterized in that: described plug screw (2) is the countersunk head plug screw.
3. a kind of high speed hydraulic cylinder guide sleeve external buffering regulation structure according to claim 1 and 2, is characterized in that: below adjacent described plug screw cap, be provided with seal ring (3).
4. a kind of high speed hydraulic cylinder guide sleeve external buffering regulation structure according to claim 1 and 2, is characterized in that: between described plug screw (2) and spring (5), be provided with pad (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320432849 CN203362703U (en) | 2013-07-19 | 2013-07-19 | External buffer adjusting structure of guide sleeve of high-speed hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320432849 CN203362703U (en) | 2013-07-19 | 2013-07-19 | External buffer adjusting structure of guide sleeve of high-speed hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203362703U true CN203362703U (en) | 2013-12-25 |
Family
ID=49810477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320432849 Expired - Lifetime CN203362703U (en) | 2013-07-19 | 2013-07-19 | External buffer adjusting structure of guide sleeve of high-speed hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203362703U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595278A (en) * | 2015-01-29 | 2015-05-06 | 中煤科工集团重庆研究院有限公司 | Hydraulic buffering oil cylinder |
-
2013
- 2013-07-19 CN CN 201320432849 patent/CN203362703U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595278A (en) * | 2015-01-29 | 2015-05-06 | 中煤科工集团重庆研究院有限公司 | Hydraulic buffering oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |