CN201090555Y - Double-acting unloading buffer oil cylinder - Google Patents
Double-acting unloading buffer oil cylinder Download PDFInfo
- Publication number
- CN201090555Y CN201090555Y CNU2007200251471U CN200720025147U CN201090555Y CN 201090555 Y CN201090555 Y CN 201090555Y CN U2007200251471 U CNU2007200251471 U CN U2007200251471U CN 200720025147 U CN200720025147 U CN 200720025147U CN 201090555 Y CN201090555 Y CN 201090555Y
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- China
- Prior art keywords
- piston
- cylinder body
- unloading
- cylinder
- double
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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.)
- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000012530 fluid Substances 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 238000009776 industrial production Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model provides a double-action unloading buffer cylinder, consisting of a piston rod, a cylinder body, a piston, a nozzle tip, a cylinder body sealing component, a piston sealing component and an unloading device assembly. The piston is arranged at the right end of the piston rod and is arranged in the cylinder body; the piston sealing component is arranged between the left end of the cylinder body and the piston rod; the unloading device assembly is arranged on the outer circles at both ends of the cylinder body and besides the nozzle tip and is communicated with the nozzle tip by an oil guide pipe; an unloading cavity is arranged in the middle of the unloading device assembly, a through hole is arranged on the bottom of the unloading cavity and is communicated with the cavity of the cylinder body, and a sealing nut is arranged on the top of the unloading cavity; a valve needle and a spring are also arranged in the unloading cavity, the tip of the valve needle is connected with the through hole and the spring is arranged between the valve needle and the sealing nut. The double-action unloading buffer cylinder of the utility model which has high practical safety, produces no impact in operation, reacts sensitively and self-achieves the unloading function can largely reduce the industrial production cost of hydraulic systems and has good promotion and application values.
Description
1, technical field
The utility model relates to the novel oil cylinder technology, specifically a kind of double-action off-load cushion cylinder.
2, background technique
The present cylinder buffer poor effect of generally using, piston return speed is slow, even phenomenon that can not return takes place, and the cylinder action reaction is insensitive, and inefficiency needs very big mechanical strength, hydraulic system manufacture cost height.
3, summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, and provides a kind of and both increases work efficiency, and strengthens the double-action off-load cushion cylinder in working life again.
The technical solution of the utility model, its structure is by piston rod, cylinder body, piston, hydraulic fluid port, the cylinder body black box, piston seal assembly and relief arrangement assembly are formed, the right-hand member of piston rod is equipped with piston, piston is arranged among the cylinder body, be provided with the piston seal assembly between cylinder body left end and the piston rod, the cylindrical at cylinder body two ends is provided with the relief arrangement assembly, the relief arrangement assembly is arranged on the next door of hydraulic fluid port, be communicated with by oil guide pipe between relief arrangement assembly and the hydraulic fluid port, be provided with unloading cavity in the middle of the relief arrangement assembly, the bottom of unloading cavity has the through hole that communicates with inner chamber of cylinder block, the unloading cavity top is provided with sealing nut, also be provided with needle and spring in unloading cavity, the tip and the through hole of needle join, and spring is arranged between needle and the sealing nut.
The utility model has the advantages that:
(1) behind clipped, pressure, flow control element, can form safety, the system that works alone easily with hydraulic-pressure pump, direction control element;
(2) solve the unloading function technical requirements that oil cylinder self is realized two-way travel terminal arbitrary end (or two ends), simplified hydraulic system structure;
(3) be used under the cylinder buffer condition, have and do not have to impact, safety, reverse starting-up action advantage such as be quick on the draw.
(4) pressure unloading can be adjusted arbitrarily;
(5) because oil cylinder self can be realized unloading function, can reduce the industrialization manufacture cost of hydraulic system greatly.
4, description of drawings
Accompanying drawing 1 is the structural representation of double-action off-load cushion cylinder;
Accompanying drawing 2 is cylinder component working principle schematic representation.
Description of reference numerals: piston rod 1, cylinder body 2, piston 3, hydraulic fluid port 4, hydraulic fluid port 5, cylinder body black box 6, piston seal assembly 7, relief arrangement assembly 8, oil guide pipe 9, unloading cavity 10, sealing nut 11, needle 12, spring 13.
5, embodiment
Below in conjunction with accompanying drawing double-action off-load cushion cylinder of the present utility model is done following detailed description the in detail.
As accompanying drawing 1, shown in 2, double-action off-load cushion cylinder of the present utility model, its structure is by piston rod 1, cylinder body 2, piston 3, hydraulic fluid port 4, cylinder body black box 6, piston seal assembly 7 and relief arrangement assembly 8 are formed, the right-hand member of piston rod 1 is equipped with piston 3, piston 3 is arranged among the cylinder body 2, be provided with cylinder body black box 6 between cylinder body 2 left ends and the piston rod 1, the cylindrical at cylinder body 2 two ends is provided with relief arrangement assembly 8, the relief arrangement assembly is arranged on the next door of hydraulic fluid port 4, be communicated with by oil guide pipe 9 between relief arrangement assembly 8 and the hydraulic fluid port 4, be provided with unloading cavity in the middle of the relief arrangement assembly 8, the bottom of unloading cavity 10 has the through hole that communicates with inner chamber of cylinder block, unloading cavity 10 tops are provided with sealing nut 11, in unloading cavity, also be provided with needle 12 and spring 13, the tip and the through hole of needle join, and spring 13 is arranged between needle 12 and the sealing nut 11.
The cylinder body black box is made up of annular solid, dust ring and seal ring, and dust ring and seal ring are arranged on the interior circle of annular solid.
The piston seal assembly is made up of inner seal ring and outer seal ring, and outer seal ring is arranged on the outside piston in the circular groove, inner seal ring be arranged on the piston rod with piston in the circular groove that joins of circle.
A kind of double-action off-load cushion cylinder of the present utility model can be realized the independent control function of the complete and incomplete off-load buffering of oil cylinder single-direction and dual-direction stroke terminal, and can satisfy any installation form of oil cylinder.Also can effectively solve the pressure load off-load problem of oil cylinder stroke End System, thereby simplify the formation of hydraulic system greatly, reduce product hydraulic system manufacture cost.This double-action off-load cushion cylinder is reasonable in design, simple in structure, safe and reliable, thereby, have good value for applications.
Claims (3)
1. double-action off-load cushion cylinder, comprise piston rod, cylinder body, piston, hydraulic fluid port, the cylinder body black box, piston seal assembly and relief arrangement assembly are formed, the right-hand member that it is characterized in that piston rod is equipped with piston, piston is arranged among the cylinder body, be provided with the piston seal assembly between cylinder body left end and the piston rod, the cylindrical at cylinder body two ends is provided with the relief arrangement assembly, the relief arrangement assembly is arranged on the next door of hydraulic fluid port, be communicated with by oil guide pipe between relief arrangement assembly and the hydraulic fluid port, be provided with unloading cavity in the middle of the relief arrangement assembly, the bottom of unloading cavity has the through hole that communicates with inner chamber of cylinder block, the unloading cavity top is provided with sealing nut, also be provided with needle and spring in unloading cavity, the tip and the through hole of needle join, and spring is arranged between needle and the sealing nut.
2. double-action off-load cushion cylinder according to claim 1 is characterized in that the cylinder body black box is made up of annular solid, dust ring and seal ring, and dust ring and seal ring are arranged on the interior circle of annular solid.
3. double-action off-load cushion cylinder according to claim 1, it is characterized in that the piston seal assembly is made up of inner seal ring and outer seal ring, outer seal ring is arranged on the outside piston in the circular groove, inner seal ring be arranged on the piston rod with piston in the circular groove that joins of circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200251471U CN201090555Y (en) | 2007-07-12 | 2007-07-12 | Double-acting unloading buffer oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200251471U CN201090555Y (en) | 2007-07-12 | 2007-07-12 | Double-acting unloading buffer oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090555Y true CN201090555Y (en) | 2008-07-23 |
Family
ID=39862316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200251471U Expired - Fee Related CN201090555Y (en) | 2007-07-12 | 2007-07-12 | Double-acting unloading buffer oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090555Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852224B (en) * | 2009-03-30 | 2012-09-19 | 中集车辆（集团）有限公司 | Hydraulic cylinder device |
| CN103233938A (en) * | 2013-05-06 | 2013-08-07 | 华菱星马汽车（集团）股份有限公司 | Tilt cylinder and concrete pump truck tilting mechanism |
| CN103728095A (en) * | 2014-01-10 | 2014-04-16 | 浙江大学 | Negative step force testing system |
| CN105673376A (en) * | 2016-01-19 | 2016-06-15 | 成都远东高科科技有限公司 | Anti-wear hydraulic manual pump |
| CN107575433A (en) * | 2017-09-30 | 2018-01-12 | 重庆维庆液压机械有限公司 | Anti-tamper hydraulic cylinder |
| CN119844464A (en) * | 2025-01-24 | 2025-04-18 | 广东南曦液压机械有限公司 | Vibrating cylinder for maritime work construction, maritime work equipment and piling method |
-
2007
- 2007-07-12 CN CNU2007200251471U patent/CN201090555Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852224B (en) * | 2009-03-30 | 2012-09-19 | 中集车辆（集团）有限公司 | Hydraulic cylinder device |
| CN103233938A (en) * | 2013-05-06 | 2013-08-07 | 华菱星马汽车（集团）股份有限公司 | Tilt cylinder and concrete pump truck tilting mechanism |
| CN103728095A (en) * | 2014-01-10 | 2014-04-16 | 浙江大学 | Negative step force testing system |
| CN103728095B (en) * | 2014-01-10 | 2016-01-13 | 浙江大学 | Negative step force pilot system |
| CN105673376A (en) * | 2016-01-19 | 2016-06-15 | 成都远东高科科技有限公司 | Anti-wear hydraulic manual pump |
| CN107575433A (en) * | 2017-09-30 | 2018-01-12 | 重庆维庆液压机械有限公司 | Anti-tamper hydraulic cylinder |
| CN107575433B (en) * | 2017-09-30 | 2019-02-22 | 重庆维庆液压机械有限公司 | Anti-tamper hydraulic cylinder |
| CN119844464A (en) * | 2025-01-24 | 2025-04-18 | 广东南曦液压机械有限公司 | Vibrating cylinder for maritime work construction, maritime work equipment and piling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080723 Termination date: 20100712 |