CN203348188U - Stacked type single-function hydraulic pressure cylinder - Google Patents
Stacked type single-function hydraulic pressure cylinder Download PDFInfo
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- CN203348188U CN203348188U CN 201320335788 CN201320335788U CN203348188U CN 203348188 U CN203348188 U CN 203348188U CN 201320335788 CN201320335788 CN 201320335788 CN 201320335788 U CN201320335788 U CN 201320335788U CN 203348188 U CN203348188 U CN 203348188U
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Abstract
The utility model discloses a stacked type single-function hydraulic pressure cylinder which comprises a cylinder body. The cylinder body is provided with an inner cavity formed by matching of the cylinder body and a cylinder bottom. A piston capable of moving in a reciprocating mode along the inner wall of the inner cavity is arranged in the inner cavity. The cavity action area formed by the large-face end of the piston and the cylinder body is larger than the cavity action area formed by the small-face end of the piston and the cylinder body. An oil path is formed between the two action cavities. A hydraulic reversing valve is arranged between the oil path and the action cavity in the large-face end. A one-way valve is arranged at the position of an action cavity fluid direction hydraulic control reversing valve at the position of a small-face end. Due to the fact that the motion stroke of the pressure cylinder controls the hydraulic control reversing valve to change directions, and the hydraulic control reversing valve changes directions to control the pressure cylinder to move, so that closed circulation control is formed. Consequently, the pressure cylinder can automatically move in a reciprocating mode to realize consecutive pressure boost as long as pressure oil is filled.
Description
Technical field
The utility model relates to a kind of improvement of hydraulic pressure booster cylinder, is specifically related to a kind of overlapping single-acting hydraulic pressure booster cylinder.
Background technique
Hydraulic pressure booster cylinder is widely used on the equipment such as hydraulic power unit, lathe, clamping machinery.Often can there is such problem in hydraulic system: in the very short time, need a high pressure in specific equipment periodic, and in the other times section, unnecessary high pressure reduces pressure by Decompression valves, causes system works efficiency low.
The model utility content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of overlapping single-acting hydraulic pressure booster cylinder that can realize Automatic-boosting is provided.
A kind of overlapping single-acting hydraulic pressure booster cylinder, comprise cylinder body, and described cylinder body has the inner chamber formed by coordinating with cylinder bottom, is provided with the piston that can move back and forth along its inwall in described inner chamber; The cavity active area that the large end face end of described piston and cylinder body form is greater than the opposite side small end face end of piston and the cavity active area that cylinder body forms; Above-mentioned two effects are connected with oil circuit between cavitys, described oil circuit and the effect cavity at large end face end place between be provided with pilot operated directional control valve, the acting chamber direction of flow pilot operated directional control valve place at small end face end place is provided with individual event valve.
The large end face end of described piston is equipped with large seal ring outward, between large seal ring and piston, by pressure plates I, by screw, fixed, and by O shape circle static seal.
The small end face end of described piston is equipped with little seal ring outward, and little seal ring and piston are threaded connection, and offers tapped hole on piston, and pressure plates II is fixed on piston by screw.
The effect cavity at small end face end place communicates with pressure oil all the time, and the effect cavity at large end face end place only enters pressure oil in the specific stroke range of piston, because the two ends effective active area does not wait, makes pilot operated directional control valve automatic reverse.Because the pilot operated directional control valve commutation is controlled in the movement travel of pressurized cylinder, the pressurized cylinder motion is controlled in the pilot operated directional control valve commutation, has formed the loop control of sealing, so, as long as pass into pressure oil, pressurized cylinder is realized continuous supercharging by automatic reciprocating motion.In the equipment driven in low service system, if any indivedual parts, need high-pressure system to drive, only need be in low service system oil circuit of branch, overlapping single-acting hydraulic pressure booster cylinder is installed on this oil circuit, the low pressure oil of low service system is converted to the high pressure oil of high-pressure system, save the fund of several times than high-pressure and hydraulic station of traditional way-increase, can improve with it in addition supporting additional device reliability.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described.Should be understood that following examples are only for the present invention is described but not for limiting the scope of the invention.
Embodiment 1
Referring to Fig. 1, a kind of overlapping single-acting hydraulic pressure booster cylinder that the utility model provides, comprise cylinder body 1, described cylinder body 1 has the inner chamber 3 formed by coordinating with cylinder bottom 2, be provided with the piston 4 that can move back and forth along its inwall in described inner chamber 3, the cavity active area that the large end face end 4a of described piston 4 and cylinder body 1 form is greater than the opposite side small end face end 4b of piston 4 and the cavity active area that cylinder body 1 forms; Above-mentioned two effects are connected with oil circuit 5 between cavitys, described oil circuit 5 and the effect cavity at large end face end 4a place between be provided with pilot operated directional control valve 6, acting chamber direction of flow pilot operated directional control valve 6 places at small end face end 4b place are provided with individual event valve 7.
During operation, referring to Fig. 1, when piston 4 moves to the left end stroke terminal, pressure oil enters the effect cavity at large end face end 4a place, piston 4 commutates under the effect of both ends of the surface pressure difference, oil circuit 5 fluid enter the left chamber of pressurized cylinder, piston 4 moves right, small end face end 4b blocks the control fluid of large end face end 4a, until pressurized cylinder piston moves to right lateral journey terminal, the effect cavity pressure oil at large end face end 4a place flows out, pilot operated directional control valve 6 commutations, oil circuit pressure oil enters pressurized cylinder the right loculus, reciprocal with this, continuously Automatic-boosting.
Embodiment 2
The large end face end 4a of described piston 4 is equipped with large seal ring 8 outward, and small end face end 4b is equipped with little seal ring 9 outward, is fixed by screw by pressure plates I 10 between large seal ring 8 and piston 4, and encloses 11 static seals by O shape; Little seal ring 9 is threaded connection with piston 4, on piston 4, offers tapped hole, and pressure plates II 12 is fixed on piston 4 by screw, prevents little seal ring loose unloading.
Design herein can be after the excessive inefficacy of seal wears, changes seal ring, saves maintenance cost, can dwindle simultaneously and cylinder body 1 inwall between gap, reduce to leak.In addition, can reduce the quality of fit of piston 4 and cylinder body 1 inwall, save manufacture cost.
Claims (3)
1. an overlapping single-acting hydraulic pressure booster cylinder, comprise cylinder body, described cylinder body has the inner chamber formed by coordinating with cylinder bottom, be provided with the piston that can move back and forth along its inwall in described inner chamber, it is characterized in that: the cavity active area that forms of the large end face end of described piston and cylinder body be greater than the opposite side small end face end of piston and the cavity active area of cylinder body formation; Above-mentioned two effects are connected with oil circuit between cavitys, described oil circuit and the effect cavity at large end face end place between be provided with pilot operated directional control valve, the acting chamber direction of flow pilot operated directional control valve place at small end face end place is provided with individual event valve.
2. overlapping single-acting hydraulic pressure booster cylinder according to claim 1, it is characterized in that: the large end face end of described piston is equipped with large seal ring outward, between large seal ring and piston, by pressure plates I, by screw, fixed, and by O shape circle static seal.
3. overlapping single-acting hydraulic pressure booster cylinder according to claim 1 and 2, it is characterized in that: the small end face end of described piston is equipped with little seal ring outward, little seal ring and piston are threaded connection, and offer tapped hole on piston, and pressure plates II is fixed on piston by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320335788 CN203348188U (en) | 2013-06-09 | 2013-06-09 | Stacked type single-function hydraulic pressure cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320335788 CN203348188U (en) | 2013-06-09 | 2013-06-09 | Stacked type single-function hydraulic pressure cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203348188U true CN203348188U (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320335788 Expired - Fee Related CN203348188U (en) | 2013-06-09 | 2013-06-09 | Stacked type single-function hydraulic pressure cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203348188U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994108A (en) * | 2014-06-06 | 2014-08-20 | 山西潞安海通工贸有限公司 | Supercharger |
| CN104088851A (en) * | 2014-07-17 | 2014-10-08 | 常州爱普超高压液压系统有限公司 | Hydraulic oil cylinder capable of reciprocating automatically |
| CN105673613A (en) * | 2016-02-26 | 2016-06-15 | 杨艳 | Mechanical automatic reversing hydraulic motor |
| CN108533539A (en) * | 2017-03-03 | 2018-09-14 | 活塞动力有限责任公司 | Double-action hydraulic booster |
| CN109356904A (en) * | 2018-12-03 | 2019-02-19 | 江苏丰东热技术有限公司 | A kind of automatic reciprocating air cylinder and automatic reciprocating air cylinder system |
| US10774847B2 (en) | 2017-03-03 | 2020-09-15 | Pistonpower Aps | Pressure amplifier |
| US10920796B2 (en) | 2017-03-03 | 2021-02-16 | Pistonpower Aps | Hydraulic pressure intensifier |
| US11060532B2 (en) | 2017-03-03 | 2021-07-13 | Pistonpower Aps | Pressure amplifier |
-
2013
- 2013-06-09 CN CN 201320335788 patent/CN203348188U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994108A (en) * | 2014-06-06 | 2014-08-20 | 山西潞安海通工贸有限公司 | Supercharger |
| CN104088851A (en) * | 2014-07-17 | 2014-10-08 | 常州爱普超高压液压系统有限公司 | Hydraulic oil cylinder capable of reciprocating automatically |
| CN105673613A (en) * | 2016-02-26 | 2016-06-15 | 杨艳 | Mechanical automatic reversing hydraulic motor |
| CN108533539A (en) * | 2017-03-03 | 2018-09-14 | 活塞动力有限责任公司 | Double-action hydraulic booster |
| CN108533539B (en) * | 2017-03-03 | 2020-03-27 | 活塞动力有限责任公司 | Double-acting hydraulic pressure booster |
| US10774847B2 (en) | 2017-03-03 | 2020-09-15 | Pistonpower Aps | Pressure amplifier |
| US10895269B2 (en) | 2017-03-03 | 2021-01-19 | Pistonpower Aps | Double acting hydraulic pressure intensifier |
| US10920796B2 (en) | 2017-03-03 | 2021-02-16 | Pistonpower Aps | Hydraulic pressure intensifier |
| US11060532B2 (en) | 2017-03-03 | 2021-07-13 | Pistonpower Aps | Pressure amplifier |
| CN109356904A (en) * | 2018-12-03 | 2019-02-19 | 江苏丰东热技术有限公司 | A kind of automatic reciprocating air cylinder and automatic reciprocating air cylinder system |
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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: 20131218 Termination date: 20140609 |