CN201636119U - Novel oil cylinder - Google Patents
Novel oil cylinder Download PDFInfo
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- CN201636119U CN201636119U CN2010201292803U CN201020129280U CN201636119U CN 201636119 U CN201636119 U CN 201636119U CN 2010201292803 U CN2010201292803 U CN 2010201292803U CN 201020129280 U CN201020129280 U CN 201020129280U CN 201636119 U CN201636119 U CN 201636119U
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- valve core
- piston
- throttling valve
- oil cylinder
- oil
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Abstract
The utility model discloses a novel oil cylinder, which comprises a cylinder body, a piston, a front end cover and a rear end cover, wherein the rear part of the piston is provided with a buffering mechanism, the buffering mechanism comprises an oil cavity which is arranged inside the piston, a throttling valve core which is installed inside the oil cavity and can slide forwards and backwards inside the oil cavity, a valve core fixing plate which is installed on the piston and is used for limiting and installing the throttling valve core and a return spring which is arranged between the bottom part and the throttling valve core; and a gap is arranged between the throttling valve core and the oil cavity. The novel oil cylinder has simple structure, adopts the buffering mechanism with completely new structure to solve the buffering problem of the present oil cylinder, is rapid to start, and has good buffering effect and long service life; and moreover, the buffering effect is almost free from being influenced by the abrasions of the piston.
Description
Technical field
The utility model relates to a kind of oil cylinder, is specifically related to a kind of novel oil cylinder that is provided with damping device, belongs to the hydraulic equipment field.
Background technique
Existing traditional cylinder structure as shown in Figure 1, it comprises a cylinder body 1, cylinder body is provided with front cover 2 and rear end cover 3, piston 4 is movable between the front cover 2 of cylinder body 1 and rear end cover 3, cylinder space between piston 4 and the rear end cover 3 is an oil back chamber 11, and rear end cover 3 is provided with hydraulic fluid port 31, and described piston 4 rear portions are provided with boss 41, the position of rear end cover 3 corresponding boss 41 is provided with groove 32, and this groove 32 communicates with hydraulic fluid port 31.The cushioning principle of this oil cylinder is such, and when piston 4 moved near the stroke end backward, boss 41 formed throttle clearance 9 with groove 32, and the oil of oil back chamber 11 must just can enter oil returning tube through throttle clearance 9, thereby forms buffering effect.In general sort buffer has following two shortcomings: 1) when piston 4 reversing motions, hydraulic oil begins to act on the so big area of boss 41 diameters, because active area is less, makes that speed was slow when oil cylinder started.2) operating time along with oil cylinder increases, and piston 4 occurs wearing and tearing with the slip surface of cylinder body 1, and it is eccentric to make that boss 41 and groove 32 occur, and has so not only influenced cushioning effect, also causes the collision and the impact of boss 41 and rear end cover 3 when serious.
The model utility content
The purpose of this utility model is at the problems referred to above deficiency, provides a kind of oil cylinder to start novel oil cylinder fast, the good buffer effect long service life.
In order to achieve the above object, the utility model is by the following technical solutions:
A kind of novel oil cylinder comprises cylinder body, piston, front cover and rear end cover, and described piston rear portion is provided with damping mechanism, and described damping mechanism comprises
Oil pocket, it is located in the piston;
Throttling valve core, it is installed in the oil pocket and can slides front and back in oil pocket;
The spool fixed plate, it is installed in and is used for the limit mounting throttling valve core on the piston;
Reseting pressuring spring is located between oil pocket bottom and the throttling valve core;
Be provided with the gap between described throttling valve core and the oil pocket.
Further, above-mentioned damping mechanism also comprises the cushion block of being located at the throttling valve core rear portion.
Above-mentioned gap is a spiral grooves structure of being located at the throttling valve core periphery wall.
Above-mentioned throttling valve core is provided with the throttle orifice of UNICOM's oil pocket and oil back chamber.
Buffer function when working in order to increase piston forward, described piston front portion is provided with at least two group damping mechanisms.
The utility model is simple in structure, and it adopts the damping mechanism of brand new, solves the problem that existing cylinder buffer exists, and that its oil cylinder starts is fast, good buffer effect and long service life, and cushioning effect is subjected to the influence of piston wear hardly.
Description of drawings
Fig. 1 is existing traditional oils cylinder structure schematic representation;
Fig. 2 is the utility model cylinder structure schematic representation;
Fig. 3 is the A portion enlarged diagram of Fig. 2.
Below by the drawings and specific embodiments the utility model is further described:
Embodiment
Shown in Fig. 2 and 3, novel oil cylinder described in the utility model comprises a cylinder body 1, and cylinder body 1 is provided with front cover 2 and rear end cover 3, and piston 4 is movable between the front cover 2 of cylinder body 1 and rear end cover 3, cylinder space between piston 4 and the rear end cover 3 is an oil back chamber 11, and this oil back chamber 11 communicates with hydraulic fluid port 31.
Further, described piston 4 rear portions are provided with damping mechanism 5, and described damping mechanism 5 comprises oil pocket 51, throttling valve core 52, spool fixed plate 53 and reseting pressuring spring 54.Above-mentioned oil pocket 51 is located in the piston 4; Above-mentioned throttling valve core 52 is installed in the oil pocket 51 and can slides front and back in oil pocket 51; Above-mentioned spool fixed plate 53 is installed on the piston 4, is used for limit mounting throttling valve core 52; Above-mentioned reseting pressuring spring 54 is located between oil pocket 51 bottoms and the throttling valve core 52, be used for guaranteeing that piston 4 leaves rear end cover 3 after, throttling valve core 52 can reset.Be provided with the gap between described throttling valve core 52 and the oil pocket 51, this gap is a spiral grooves structure 521 of being located at throttling valve core 52 periphery walls, as shown in Figure 3.Further, the lifting surface area when cushioning in order to increase, above-mentioned damping mechanism 5 also comprises the cushion block 55 of being located at throttling valve core 52 rear portions.
According to actual needs, above-mentioned throttling valve core can also be provided with the throttle orifice 522 of UNICOM's oil pocket 51 and oil back chamber 11.
Further specifically in order to increase the piston forward buffer function in when work, described piston 4 front portions are provided with at least two group damping mechanisms 5, and these two groups of damping mechanisms are identical with the damping mechanism structural principle at piston rear portion.
Below come the utility model is further described by concrete cushioning principle:
As shown in Figure 2, when piston motion to the rear end, cushion block is with after rear end cover contact, the compressing throttling valve core relatively moves forward, the oil pocket volume reduces, the oil of its inside flows out by the gap between throttling valve core and the piston (being the spiral grooves structure), formation cushions thus.The throttle orifice of throttling valve core inside can require to keep or cancellation according to buffering.Lifting surface area when cushion block can increase buffering can be cancelled or be kept according to practical application.After reseting elastic element was used for guaranteeing that piston leaves end cap, throttling valve core can reset.When piston 4 reversing motions, hydraulic oil acts on the whole ear end face of piston at the very start, because active area is bigger, makes oil cylinder start rapidly.
Claims (5)
1. a novel oil cylinder comprises cylinder body, piston, front cover and rear end cover, it is characterized in that: described piston rear portion is provided with damping mechanism, and described damping mechanism comprises
Oil pocket, it is located in the piston;
Throttling valve core, it is installed in the oil pocket and can slides front and back in oil pocket;
The spool fixed plate, it is installed in and is used for the limit mounting throttling valve core on the piston;
Reseting pressuring spring is located between oil pocket bottom and the throttling valve core;
Be provided with the gap between described throttling valve core and the oil pocket.
2. novel oil cylinder according to claim 1 is characterized in that: described damping mechanism also comprises the cushion block of being located at the throttling valve core rear portion.
3. novel oil cylinder according to claim 1 is characterized in that: described gap is a spiral grooves structure of being located at the throttling valve core periphery wall.
4. novel oil cylinder according to claim 1 is characterized in that: described throttling valve core is provided with the throttle orifice of UNICOM's oil pocket and oil back chamber.
5. according to the arbitrary described novel oil cylinder of claim 1 to 4, it is characterized in that: described piston front portion is provided with at least two group damping mechanisms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201292803U CN201636119U (en) | 2010-03-08 | 2010-03-08 | Novel oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201292803U CN201636119U (en) | 2010-03-08 | 2010-03-08 | Novel oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201636119U true CN201636119U (en) | 2010-11-17 |
Family
ID=43080610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201292803U Expired - Fee Related CN201636119U (en) | 2010-03-08 | 2010-03-08 | Novel oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201636119U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410278A (en) * | 2011-11-11 | 2012-04-11 | 三一重工股份有限公司 | Multistage single-action hydraulic cylinder and engineering machinery provided with same |
| CN102635598A (en) * | 2012-03-23 | 2012-08-15 | 施亨庆 | Hydraulic speed regulator and speed regulating mechanism for same |
| CN103133456A (en) * | 2013-03-04 | 2013-06-05 | 长沙理工大学 | Energy-saving pressure difference control buffer method of pumping oil cylinder for concrete pump |
| CN103148053A (en) * | 2013-03-04 | 2013-06-12 | 长沙理工大学 | Stroke control energy-saving buffering method of pumping oil cylinder used for concrete pump |
| CN106050798A (en) * | 2016-08-17 | 2016-10-26 | 四川英发太阳能科技有限公司 | Steerable carrying equipment of polycrystalline silicon solar cell chips |
| CN108679041A (en) * | 2018-07-12 | 2018-10-19 | 长兴宏力机械科技有限公司 | A kind of buffer type hydraulic oil cylinder |
| CN111692160A (en) * | 2020-08-10 | 2020-09-22 | 常德市联嘉机械有限公司 | Locking oil cylinder structure with stroke end buffering function |
-
2010
- 2010-03-08 CN CN2010201292803U patent/CN201636119U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410278A (en) * | 2011-11-11 | 2012-04-11 | 三一重工股份有限公司 | Multistage single-action hydraulic cylinder and engineering machinery provided with same |
| CN102635598A (en) * | 2012-03-23 | 2012-08-15 | 施亨庆 | Hydraulic speed regulator and speed regulating mechanism for same |
| CN103133456A (en) * | 2013-03-04 | 2013-06-05 | 长沙理工大学 | Energy-saving pressure difference control buffer method of pumping oil cylinder for concrete pump |
| CN103148053A (en) * | 2013-03-04 | 2013-06-12 | 长沙理工大学 | Stroke control energy-saving buffering method of pumping oil cylinder used for concrete pump |
| CN106050798A (en) * | 2016-08-17 | 2016-10-26 | 四川英发太阳能科技有限公司 | Steerable carrying equipment of polycrystalline silicon solar cell chips |
| CN106050798B (en) * | 2016-08-17 | 2018-12-28 | 四川英发太阳能科技有限公司 | A kind of polysilicon solar cell chip turns to carrying equipment |
| CN108679041A (en) * | 2018-07-12 | 2018-10-19 | 长兴宏力机械科技有限公司 | A kind of buffer type hydraulic oil cylinder |
| CN111692160A (en) * | 2020-08-10 | 2020-09-22 | 常德市联嘉机械有限公司 | Locking oil cylinder structure with stroke end buffering function |
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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 |
Granted publication date: 20101117 Termination date: 20160308 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |