CN205117887U - Hydraulic cylinder is ground immediately to unsteady buffering of pulling force - Google Patents
Hydraulic cylinder is ground immediately to unsteady buffering of pulling force Download PDFInfo
- Publication number
- CN205117887U CN205117887U CN201520934521.4U CN201520934521U CN205117887U CN 205117887 U CN205117887 U CN 205117887U CN 201520934521 U CN201520934521 U CN 201520934521U CN 205117887 U CN205117887 U CN 205117887U
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- China
- Prior art keywords
- piston
- piston rod
- fixed
- floating buffer
- rod
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- Withdrawn - After Issue
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Abstract
The utility model relates to a hydraulic cylinder technical field especially relates to a hydraulic cylinder is ground immediately to unsteady buffering of pulling force, comprising a cylinder body, fixed piston, piston rod and uide bushing, the one end fixed mounting of cylinder body has the end cover, the one end at the piston rod is fixed to the piston, the uide bushing suit is at the other end of piston rod, and uide bushing fixed mounting is at the other end of cylinder body, it is equipped with unsteady damper piston still to overlap on the piston rod, unsteady damper piston is located between fixed piston and the uide bushing, it still is equipped with the dish spring to float between damper piston and the fixed piston, the outer lane of piston rod is offered and is used for the ka tai of the unsteady damper piston of restriction to the motion of the piston rod other end. The utility model discloses a hydraulic cylinder is ground immediately to unsteady buffering of pulling force there being the pole intracavity to increase an unsteady damper piston, can reduce the rising velocity who has pole chamber hydraulic oil pressure, avoids the impact between two pistons, and the dish spring can also have certain buffering effect when air cavity atmospheric pressure is not enough.
Description
Technical field
The utility model relates to technical field of hydraulic oil cylinder, particularly relates to a kind of pulling force floating buffer Vertical Mill hydraulic jack.
Background technique
Hydraulic jack is the actuator in hydraulic system, hydraulic energy is converted to the energy conversion device of the mechanical energy of linear reciprocating motion, is generally made up of cylinder body, piston, piston rod and cylinder cap etc.Vertical Mill oil cylinder is a similar hydraulic spring grease cup operationally, when the passive tension of oil cylinder, rod chamber volume-diminished, hydraulic oil flows out from rod chamber hydraulic fluid port and enters accumulator, cushions oil cylinder, rod chamber pressure can improve, when passive tensile impact is excessive, long, due to the restriction of hydraulic fluid port latus rectum, hydraulic oil can not flow out rapidly, rod chamber pressure increases excessive, too fast, can cause damaging rod seal, piston rod, hanger etc.
Model utility content
The technical problems to be solved in the utility model is: in order to solve in prior art due to the restriction of hydraulic fluid port latus rectum, hydraulic oil can not flow out rapidly, oil cylinder cavity pressure increases excessive, too fast, can cause the technical problem that rod seal, piston rod, hanger etc. damage, the utility model provides a kind of pulling force floating buffer Vertical Mill hydraulic jack.
The utility model solves the technological scheme that its technical problem adopts: a kind of pulling force floating buffer Vertical Mill hydraulic jack, comprise cylinder body, fixed piston, piston rod and guide sleeve, one end of cylinder body is installed with end cap, piston is fixed on one end of piston rod, fixed piston will be divided into rod chamber and rodless cavity in cylinder body, guide sleeve is sleeved on the other end of piston rod, and guide sleeve is fixedly mounted on the other end of cylinder body, described piston rod is also set with floating buffer piston, described floating buffer piston is between fixed piston and guide sleeve, also disc spring is provided with between described floating buffer piston and fixed piston, the outer ring of piston rod offers the chuck of moving to the piston rod the other end for limiting floating buffer piston, air flue is offered in piston rod, the suction port be connected with air flue is offered outside the other end of piston rod, offer outside one end of piston rod towards the air outlet of disc spring, described air outlet is connected with air flue.
For the ease of oil-feed and oil extraction, as preferably, described end cap offers the filler opening be connected with rodless cavity, cylinder body offers the oil outlet be connected with rod chamber.
In order to avoid fluid is revealed, inner ring and the outer ring of described floating buffer piston are equipped with seal ring.
In order to ensure that floating buffer piston assembly normally works, as preferably, between described floating buffer piston and fixed piston, be filled with the gas identical with rod chamber working pressure.
The beneficial effects of the utility model are, pulling force floating buffer Vertical Mill hydraulic jack of the present utility model, a floating buffer piston is increased in beam hanger chamber, when fixed piston rod is subject to the tensile impact of increase suddenly, rod chamber hydraulic oil is not also got rid of in time, when internal pressure exceedes working pressure, floating buffer piston can be rapidly to fixed piston direction and move, the rate of climb of rod chamber hydraulic fluid pressure can be reduced, disc spring is compressed simultaneously, thrust increases, the impact between two-piston can be avoided, disc spring can also have certain cushioning effect when air cavity air pressure is not enough.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of the optimum embodiment of the utility model.
In figure: 1, cylinder body, 11, rod chamber, 12, rodless cavity, 13, oil outlet, 2, fixed piston, 3, piston rod, 31, chuck, 32, air flue, 33, suction port, 34, air outlet, 4, guide sleeve, 5, end cap, 51, filler opening, 6, floating buffer piston, 7, disc spring, 8, seal ring.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figure 1, the optimum embodiment of the utility model, a kind of pulling force floating buffer Vertical Mill hydraulic jack, comprise cylinder body 1, fixed piston 2, piston rod 3 and guide sleeve 4, one end of cylinder body 1 is installed with end cap 5, piston 2 is fixed on one end of piston rod 3, fixed piston 2 will be divided into rod chamber 11 and rodless cavity 12 in cylinder body 1, guide sleeve 4 is sleeved on the other end of piston rod 3, and guide sleeve 4 is fixedly mounted on the other end of cylinder body 1, piston rod 3 is also set with floating buffer piston 6, floating buffer piston 6 is between fixed piston 2 and guide sleeve 4, disc spring 7 is also provided with between floating buffer piston 6 and fixed piston 2, the outer ring of piston rod 3 offers the chuck 31 of moving to piston rod 3 the other end for limiting floating buffer piston 6, air flue 32 is offered in piston rod 3, the suction port 33 be connected with air flue 32 is offered outside the other end of piston rod 3, offer towards the air outlet 34 of disc spring 7 outside one end of piston rod 3, air outlet 34 is connected with air flue 32.End cap 5 offers the filler opening 51 be connected with rodless cavity 12, cylinder body 1 offers the oil outlet 13 be connected with rod chamber 11.The inner ring of floating buffer piston 6 and outer ring are equipped with seal ring 8.The gas identical with rod chamber 11 working pressure is filled with between floating buffer piston 6 and fixed piston 2.
In rod chamber 11, increase a floating buffer piston 6 (can only move in restriction stroke, namely be fixed between piston 2 and chuck 31), piston space has disc spring 7, and is full of the nitrogen identical with rod chamber 11 working pressure at piston space.When oil cylinder normally works, floating buffer piston 6 is away from fixed piston 2 position, and air cavity volume is maximum.When cylinder piston rod 3 is subject to the tensile impact of increase suddenly, rod chamber 11 hydraulic oil is not also got rid of in time, time internal pressure exceedes working pressure, floating buffer piston 6 can be rapidly to fixed piston 2 direction and move, can reduce the rate of climb of rod chamber 11 hydraulic fluid pressure, disc spring 7 is compressed simultaneously, and thrust increases, can avoid the impact between two-piston, disc spring 7 can also have certain cushioning effect when air cavity air pressure is not enough.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.
Claims (4)
1. a pulling force floating buffer Vertical Mill hydraulic jack, comprise cylinder body (1), fixed piston (2), piston rod (3) and guide sleeve (4), one end of cylinder body (1) is installed with end cap (5), piston (2) is fixed on one end of piston rod (3), fixed piston (2) will be divided into rod chamber (11) and rodless cavity (12) in cylinder body (1), guide sleeve (4) is sleeved on the other end of piston rod (3), and guide sleeve (4) is fixedly mounted on the other end of cylinder body (1), it is characterized in that: described piston rod (3) is also set with floating buffer piston (6), described floating buffer piston (6) is positioned between fixed piston (2) and guide sleeve (4), disc spring (7) is also provided with between described floating buffer piston (6) and fixed piston (2), the outer ring of piston rod (3) offers the chuck (31) of moving to piston rod (3) the other end for limiting floating buffer piston (6), air flue (32) is offered in piston rod (3), the suction port (33) be connected with air flue (32) is offered outside the other end of piston rod (3), offer outside one end of piston rod (3) towards the air outlet of disc spring (7) (34), described air outlet (34) is connected with air flue (32).
2. pulling force floating buffer Vertical Mill hydraulic jack as claimed in claim 1, it is characterized in that: described end cap (5) offers the filler opening (51) be connected with rodless cavity (12), cylinder body (1) offers the oil outlet (13) be connected with rod chamber (11).
3. pulling force floating buffer Vertical Mill hydraulic jack as claimed in claim 1, is characterized in that: inner ring and the outer ring of described floating buffer piston (6) are equipped with seal ring (8).
4. pulling force floating buffer Vertical Mill hydraulic jack as claimed in claim 1, is characterized in that: be filled with the gas identical with rod chamber (11) working pressure between described floating buffer piston (6) and fixed piston (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520934521.4U CN205117887U (en) | 2015-11-20 | 2015-11-20 | Hydraulic cylinder is ground immediately to unsteady buffering of pulling force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520934521.4U CN205117887U (en) | 2015-11-20 | 2015-11-20 | Hydraulic cylinder is ground immediately to unsteady buffering of pulling force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205117887U true CN205117887U (en) | 2016-03-30 |
Family
ID=55573502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520934521.4U Withdrawn - After Issue CN205117887U (en) | 2015-11-20 | 2015-11-20 | Hydraulic cylinder is ground immediately to unsteady buffering of pulling force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205117887U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298978A (en) * | 2015-11-20 | 2016-02-03 | 常州海宏液压设备有限公司 | Tensile force floating buffering vertical mill hydraulic oil cylinder |
-
2015
- 2015-11-20 CN CN201520934521.4U patent/CN205117887U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298978A (en) * | 2015-11-20 | 2016-02-03 | 常州海宏液压设备有限公司 | Tensile force floating buffering vertical mill hydraulic oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160330 Effective date of abandoning: 20180202 |
|
| AV01 | Patent right actively abandoned |