CN2740825Y - Speed-changing hydraulic cylinder - Google Patents
Speed-changing hydraulic cylinder Download PDFInfo
- Publication number
- CN2740825Y CN2740825Y CN 200420074940 CN200420074940U CN2740825Y CN 2740825 Y CN2740825 Y CN 2740825Y CN 200420074940 CN200420074940 CN 200420074940 CN 200420074940 U CN200420074940 U CN 200420074940U CN 2740825 Y CN2740825 Y CN 2740825Y
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- CN
- China
- Prior art keywords
- piston rod
- main oil
- cylinder body
- guide rod
- communicated
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a speed-changing hydraulic cylinder, comprising a piston rod, a lower oil channel, a guide rod, a main oil cavity, a cylinder body, a main oil channel and a base. The cylinder body is fixed on the base. The piston rod is positioned in the cylinder body and is sealed and matched with the cylinder body. The main oil channel is positioned at the bottom of the main oil cavity and is communicated with the main oil cavity. The lower oil channel is positioned at the top of the main oil cavity and is communicated with the main oil cavity. The piston rod is in the cylindrical shape, and the inner space of the piston rod forms an auxiliary oil cavity. The center of the base is fixedly connected with the guide rod. The center of the guide rod is provided with an auxiliary oil channel. The guide rod is extended into the auxiliary oil cavity of the interior of the piston rod. The auxiliary oil channel is communicated with the auxiliary oil cavity. Based on the different working driving forces, the driving speed can be conveniently adjusted, and the utility model has the advantages of high working efficiency, fast driving speed, etc.
Description
Technical field:
The utility model relates to a kind of can the change piston and stretch out the compensator pressure cylinder of speed according to promoting the resistance size.
Background technique:
Oil hydraulic cylinder is the critical piece of hydraulic equipment, and present oil hydraulic cylinder mainly is made of piston rod, cylinder body, oil pocket etc.During oil pocket oiling pressurization, the stressed cylinder body that stretches out of piston rod produces thrust and finishes acting; During release, piston rod indentation cylinder body.Because the cross-section area of oil pocket and piston rod is certain, thereby, piston rod can not change the oil mass in compression area and the injection oil pocket according to the variation of thrust in pushing course, particularly when promoting resistance hour, the driving velocity of piston rod is the same during still with high thrust, driving velocity is slower, and efficient is lower, causes waste.
The model utility content:
The purpose of this utility model provide a kind of can be according to promoting the resistance size, the regulating piston bar stretches out the compensator pressure cylinder of speed.
To achieve these goals, the utility model comprises: piston rod, descending oil duct, guide rod, main oil pocket, cylinder body, main oil gallery, base, cylinder body is fixed on the base, piston rod is positioned at cylinder body and is sealed and matched with it, main oil gallery is positioned at main oil pocket bottom and is communicated with it, descending oil duct is positioned at main oil pocket top and is communicated with it, piston rod is a cylinder column structure, its inner space forms secondary oil pocket, connected a guide rod in the base center fixation, the guide rod center has a secondary oil duct, and guide rod extend in the secondary oil pocket of piston rod inside, and secondary oil duct is communicated with secondary oil pocket.
When work like this,, open main oil gallery and secondary oil duct simultaneously when needs during than high thrust, high pressure oil is injected into main oil pocket and secondary oil pocket simultaneously, and piston rod will be released with maximum thrust, finishes the acting process, descending afterwards oil duct oiling pressurization, main oil gallery and secondary oil duct release, piston rod withdrawal.When the promotion resistance is little, only need open main oil gallery, high pressure oil is injected into main oil pocket, because the volume reducing of oil pocket, piston rod will be released with fast speeds, will comparatively fast finish the acting process, descending afterwards oil duct oiling pressurization, main oil gallery release, piston rod withdrawal.When promoting resistance hour, only need the open auxiliary oil duct, high pressure oil is injected into secondary oil pocket, because the volume of secondary oil pocket is less, piston rod will be released fast, finishes the acting process fast, descending afterwards oil duct oiling pressurization, secondary oil duct release, piston rod withdrawal.According to different work Driving forces, can regulate easily and push away speed, have characteristics such as high working efficiency, driving velocity be fast.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
Embodiment:
As shown in Figure 1, the utility model comprises: piston rod 1, descending oil duct 4, guide rod 5, main oil pocket 6, cylinder body 8, main oil gallery 9, base 11, cylinder body 8 adopts nut to be fixed on the base 11, piston rod 1 is positioned at cylinder body 8, the interior edge of 7 outer and cylinder body 8 upper ends is provided with seal ring 3 at the bottom of the piston, makes between piston rod 1 and the cylinder body 8 to be sealed and matched.Main oil gallery 9 is positioned at main oil pocket 6 bottoms and is communicated with it, and descending oil duct 4 is positioned at the top of main oil pocket 6 and is communicated with it.Piston rod 1 is a cylinder column structure, and its inner space forms secondary oil pocket 2, has connected a guide rod 5 in base 11 center fixation, and guide rod is cylindric, and guide rod 5 centers have a secondary oil duct 10.Guide rod 5 is same axle center with secondary oil pocket 2, and guide rod 5 extend in the secondary oil pocket 2 of piston rod 1 inside, is sealed and matched mutually between guide rod 5 outers and secondary oil pocket 2 inwalls, and to guarantee leakage of oil not to take place, secondary oil duct 10 is communicated with secondary oil pocket 2.During work, can utilize high-pressure oil pipe to be connected on the control valve main oil gallery 9, secondary oil duct 10 and descending oil duct 4 and get final product.
Claims (1)
1, a kind of compensator pressure cylinder, comprise: piston rod (1), descending oil duct (4), guide rod (5), main oil pocket (6), cylinder body (8), main oil gallery (9), base (11), cylinder body (8) is fixed on the base (11), piston rod (1) is positioned at cylinder body (8) and is sealed and matched with it, main oil gallery (9) is positioned at main oil pocket (6) bottom and is communicated with it, descending oil duct (4) is positioned at main oil pocket (6) top and is communicated with it, it is characterized in that piston rod (1) is a cylinder column structure, its inner space forms secondary oil pocket (2), connected a guide rod (5) in base (11) center fixation, guide rod (5) center has a secondary oil duct (10), guide rod (5) extend in the secondary oil pocket (2) of piston rod inside, and secondary oil duct (10) is communicated with secondary oil pocket (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420074940 CN2740825Y (en) | 2004-10-25 | 2004-10-25 | Speed-changing hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420074940 CN2740825Y (en) | 2004-10-25 | 2004-10-25 | Speed-changing hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2740825Y true CN2740825Y (en) | 2005-11-16 |
Family
ID=35351115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420074940 Expired - Fee Related CN2740825Y (en) | 2004-10-25 | 2004-10-25 | Speed-changing hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2740825Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758809A (en) * | 2012-07-19 | 2012-10-31 | 江苏速升自动化装备股份有限公司 | Air cylinder with oriented function |
| CN102788061A (en) * | 2012-08-30 | 2012-11-21 | 中国地质科学院勘探技术研究所 | Low-flow fast movable cylinder |
| CN103362892A (en) * | 2013-07-23 | 2013-10-23 | 云南兴长江实业有限公司 | Double-acting high-thrust-output hydraulic oil cylinder |
| CN104863924A (en) * | 2015-05-24 | 2015-08-26 | 南京理工大学 | Three-cavity power hydraulic cylinder |
| CN106194885A (en) * | 2016-08-31 | 2016-12-07 | 徐州徐工挖掘机械有限公司 | A kind of multiaction power multi-speed oil cylinder |
| CN108906959A (en) * | 2018-08-13 | 2018-11-30 | 南京邮电大学 | A kind of flexibility stamping device |
| CN115045945A (en) * | 2022-05-11 | 2022-09-13 | 北京电子工程总体研究所 | Hydraulic buffer device |
-
2004
- 2004-10-25 CN CN 200420074940 patent/CN2740825Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758809A (en) * | 2012-07-19 | 2012-10-31 | 江苏速升自动化装备股份有限公司 | Air cylinder with oriented function |
| CN102788061A (en) * | 2012-08-30 | 2012-11-21 | 中国地质科学院勘探技术研究所 | Low-flow fast movable cylinder |
| CN103362892A (en) * | 2013-07-23 | 2013-10-23 | 云南兴长江实业有限公司 | Double-acting high-thrust-output hydraulic oil cylinder |
| CN104863924A (en) * | 2015-05-24 | 2015-08-26 | 南京理工大学 | Three-cavity power hydraulic cylinder |
| CN106194885A (en) * | 2016-08-31 | 2016-12-07 | 徐州徐工挖掘机械有限公司 | A kind of multiaction power multi-speed oil cylinder |
| CN108906959A (en) * | 2018-08-13 | 2018-11-30 | 南京邮电大学 | A kind of flexibility stamping device |
| CN108906959B (en) * | 2018-08-13 | 2023-09-12 | 南京邮电大学 | Flexible stamping device |
| CN115045945A (en) * | 2022-05-11 | 2022-09-13 | 北京电子工程总体研究所 | Hydraulic buffer device |
| CN115045945B (en) * | 2022-05-11 | 2023-12-05 | 北京电子工程总体研究所 | Hydraulic buffer device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |