CN103982488A - Adjustable buffering device of large cylinder body - Google Patents
Adjustable buffering device of large cylinder body Download PDFInfo
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- CN103982488A CN103982488A CN201410221881.XA CN201410221881A CN103982488A CN 103982488 A CN103982488 A CN 103982488A CN 201410221881 A CN201410221881 A CN 201410221881A CN 103982488 A CN103982488 A CN 103982488A
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Abstract
Disclosed is an adjustable buffering device of a large cylinder body. The adjustable buffering device is arranged at the tail end inside the large cylinder body arranged on an actuator, and a piston is arranged inside the cylinder body. The adjustable buffering device comprises a hydraulic oil cylinder, a piston plate which is arranged inside the hydraulic oil cylinder and divides the hydraulic oil cylinder into an oil cylinder upper cavity and an oil cylinder lower cavity, a piston rod fixedly connected to the bottom of the piston plate, a reset spring which is clamped between the upper internal top wall of the oil cylinder and the piston plate, and a one-way throttle valve. The piston plate can be driven by the piston rod to move vertically and reciprocatingly inside the hydraulic oil cylinder, the oil way between the oil cylinder upper cavity and the oil cylinder lower cavity is communicated through the one-way throttle valve, and the one-way throttle valve is formed by combining a throttle valve and a one-way valve in series. By means of the one-way throttle valve, the buffering speed can be changed simply by adjusting the one-way throttle valve, so that the adjustable buffering device of the large cylinder body is convenient to operate, large in adjusting range and high in adaptability. Besides, the adjustable buffering device is an internal circulation hydraulic system, which is convenient to install and maintain, simple in structure, reliable in performance and wide in application range.
Description
Technical field
The present invention relates to a kind of damping device technical field, a kind of hydraulic damping device of specific design.
Background technique
This damping device is widely used in pneumatic actuator and hydraulic actuator, and Main Function is protection valve and pipe network.When valve proximity is closed, this damping device can make speed slow down, and protection valve is avoided impacting, and improves working life; Particularly, when pipeline medium is liquid, buffering can be eliminated water hammer, protects whole pipe network.The final controlling element of small-sized cylinder body is general adopts simple spring buffer, and for the final controlling element of large-scale cylinder body, it can not meet far away, for ensureing its cushioning effect, in the final controlling element of existing large-scale cylinder body, all adopts very complicated, the bulky damping device of structure.Moreover for final controlling element, the speed of buffering is extremely important, generally all adopt configuration separately, its bad adaptability, complex operation, installation and maintenance are very inconvenient.
Summary of the invention
The object of the invention is to the defect existing for prior art, a kind of damping device that can be applicable to large-scale cylinder body is provided, the scope of its application is wide, strong adaptability, simple in structure, buffer speed is adjustable.
For achieving the above object, the present invention adopts following technical proposals: a kind of damping device of adjustable large-scale cylinder body, it is arranged at the interior tail end of the large-scale cylinder body position of final controlling element, in cylinder body, be provided with piston, comprise hydraulic jack, be located in hydraulic jack and hydraulic jack be separated into the piston plate of cylinder upper cavity oil and oil cylinder cavity of resorption, be fixedly connected on the piston rod of piston plate below, be clipped on the Returnning spring between oil cylinder upper cylinder half inner roof wall and piston plate, one-way throttle valve, piston plate can move back and forth up and down under the drive of piston rod in hydraulic jack, oil circuit between cylinder upper cavity oil and oil cylinder cavity of resorption is communicated with by one-way throttle valve, described one-way throttle valve is formed by throttle valve and one-way valve parallel combination, when the piston of final controlling element is encountered piston rod, oil cylinder upper cylinder half is compressed, one-way throttle valve closed check valve, and the hydraulic oil in oil cylinder upper cylinder half enters cylinder under oil cylinder through one-way throttle valve throttle valve, to realize action of giving, and by regulating throttle valve to set the speed of buffering, after the piston of final controlling element cylinder body returns, the piston rod of damping device is released, under the effect of Returnning spring, piston rod moves down, now under hydraulic pressure, cylinder is compressed, hydraulic oil under hydraulic pressure in cylinder directly flows to rapidly cylinder upper cavity oil through one-way throttle valve branch road one-way valve, for action of giving is next time got ready.
As a kind of improvement: the large-scale cylinder body of described final controlling element is the first cylinder body and the second cylinder body that is symmetricly set in final controlling element both sides, the first cylinder body, on the second cylinder body all with joint, the first cylinder body, the second cylinder body formation medium channel that is connected with one stroke control access B by joint, and transmitted by Stroke Control path control media, between the first cylinder body and the second cylinder body, be folded with an interior casing with actuating device, described actuating device comprises gear, be provided with along its length the piston-rack axle of the tooth that is meshed with gear, casing is provided with the pilot hole that is communicated with the first cylinder body and the second cylinder body, piston-rack axle is connected to respectively the first cylinder body through pilot hole two ends, on piston in the second cylinder body, piston-rack axle can move left and right along pilot hole in casing, and drive the gear being engaged on piston-rack axle to rotate by piston-rack axle, medium is controlled to a cylinder body transmission and is injected by Stroke Control medium channel, piston pressurized in this cylinder body also drives the axial right side of the piston-rack being connected on this piston or is moved to the left, the piston that the other end of piston-rack axle promotes in another cylinder body moves to piston-rack axle movement direction, medium in another cylinder body by compression joint on this cylinder body moves to Stroke Control medium channel, the gear being simultaneously engaged on piston-rack axle is done clockwise or rotates counterclockwise under the drive of piston-rack axle, realize performing an action of final controlling element.
As a kind of improvement: described medium is gas or hydraulic oil.
Adopt the damping device of such scheme, because it has adopted one-way throttle valve, by regulating one-way throttle valve just can change the speed of buffering, easy to operate, regulation range is large, strong adaptability, moreover damping device of the present invention is a kind of hydraulic system of inner loop, its convenient for installation and maintenance, simple in structure, reliable performance, the scope of application is wide, not only can be applicable to large-scale hydraulic actuator and also can be used for large-scale pneumatic actuator.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present invention.
Fig. 2 is the structural representation with a kind of embodiment of damping device final controlling element.
Fig. 3 is the structural representation of Fig. 2 middle joint part.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of specific embodiment of the damping device of a kind of adjustable large-scale cylinder body of the present invention, it is a kind of hydraulic system of inner loop, can be arranged at the interior tail end of the large-scale cylinder body A position of valve actuator as shown in Figure 3, in cylinder body A, be provided with piston 9, certainly also can arrange with other and carry out in its cylinder body.Damping device comprises hydraulic jack 4-1, be located in hydraulic jack 4-a and hydraulic jack 4-1 be separated into the piston 4-2 of cylinder upper cavity oil 4-1a and oil cylinder cavity of resorption 4-1b, piston rod 4-3 with piston 4-2 integral type, be clipped on the Returnning spring 4-4 between oil cylinder upper cylinder half 4-1a inner roof wall and piston 4-2, one-way throttle valve 4-5, piston 4-2 can move back and forth up and down under the drive of piston rod 4-3 in hydraulic jack 4-1, oil circuit between cylinder upper cavity oil 4-1a and oil cylinder cavity of resorption 4-1b is communicated with by one-way throttle valve 4-5, described one-way throttle valve 4-5 is formed by throttle valve 4-5a and one-way valve 4-5b parallel combination, when the piston of final controlling element is met piston rod 4-3,4-1a is compressed for oil cylinder upper cylinder half, the one-way valve 4-5a of one-way throttle valve 4-5 closes, hydraulic oil in oil cylinder upper cylinder half 4-1a enters cylinder 4-1b under oil cylinder through one-way throttle valve 4-5 throttle valve 4-5b, to realize action of giving, and by regulating throttle valve 4-5b to set the speed of buffering, after the piston 9 of final controlling element cylinder body A returns, the piston rod 4-3 of damping device is released, under the effect of Returnning spring 4-4, piston rod 4-3 moves down, now under hydraulic pressure, cylinder 4-b is compressed, hydraulic oil under hydraulic pressure in cylinder 4-b directly flows to rapidly cylinder upper cavity oil 4-1a through one-way throttle valve branch road 4-5 one-way valve 4-5a, for action of giving is next time got ready.This damping device user only need regulate one-way throttle valve to set the speed of buffering on request, and operation is very easy, and regulation range is also large.The present embodiment adopts final controlling element as shown in Figure 3.The large-scale cylinder body A of final controlling element is the first cylinder body 8 and the second cylinder body 1 that is symmetricly set in final controlling element both sides, the first cylinder body 8, on the second cylinder body 1 all with joint 16, the first cylinder body 8, the second cylinder body 1 formation medium channel that is connected with one stroke control access B by joint 16, and transmitted by Stroke Control path B control media, between the first cylinder body 8 and the second cylinder body 1, be folded with an interior casing 13 with actuating device, described actuating device comprises gear 3, be provided with along its length the piston-rack axle 14 of the tooth that is meshed with gear 3, casing 13 is provided with the pilot hole 2 that is communicated with the first cylinder body 8 and the second cylinder body 1, piston-rack axle 14 is connected to respectively the first cylinder body 8 through pilot hole 2 two ends, on piston 9 in the second cylinder body 1, piston-rack axle 14 can move left and right along pilot hole 2 in casing 13, and drive the gear 3 being engaged on piston-rack axle 14 to rotate by piston-rack axle 14, medium is controlled by outside selector valve, by path B, to a cylinder body transmission, injected, the piston-rack axle 14 that piston 9 pressurizeds in this cylinder body drive are connected on this piston 9 to the right or be moved to the left, the piston 9 that the other end of piston-rack axle 14 promotes in another cylinder body moves to piston-rack axle 14 movement directions, medium in another cylinder body by compression joint on this cylinder body 16 is got back to Stroke Control medium channel B fuel tank, the gear 3 being simultaneously engaged on piston-rack axle 14 is done clockwise or rotates counterclockwise under the drive of piston-rack axle 14, the revolution that realizes final controlling element performs an action.Described medium is gas or hydraulic oil, and the present embodiment can also can be hydraulic actuator for pneumatic actuator.
The final controlling element of the present embodiment adopts piston 9 and piston-rack axle 14 split type, even when piston 9 and pilot hole 2 disalignment, butt relation due to its split, between piston 9 and piston-rack axle 14, can freely be offset, can not produce any jam, error during self-compensating disalignment, has avoided jam phenomenon, final controlling element in-fighting is low, and the relatively existing final controlling element of the moment of output is much larger.And the assembling dismounting of the present embodiment is easy to maintenance, only cylinder body need be taken away, piston is energy self falling just, to the seal ring on piston, changes very convenient.The compact structure of damping device and cylinder body, coordinates performance close, that stablize final controlling element, extends the life-span of final controlling element.Whole final controlling element adopts symmetrical double-cylinder structure, at final controlling element when valve connects, otherwise just do not divide, easy to use.
Claims (3)
1. the damping device of an adjustable large-scale cylinder body, it is arranged at the interior tail end of the large-scale cylinder body of final controlling element (A) position, in cylinder body (A), be provided with piston (9), it is characterized in that: comprise hydraulic jack (4-1), be located in hydraulic jack (4-1) and hydraulic jack (4-1) be separated into the piston (4-2) of cylinder upper cavity oil (4-1a) and oil cylinder cavity of resorption (4-1b), piston rod (4-3) with piston (4-2) integral type, be clipped on the Returnning spring (4-4) between oil cylinder upper cylinder half (4-1a) inner roof wall and piston (4-2), one-way throttle valve (4-5), piston (4-2) can move back and forth up and down under the drive of piston rod (4-3) in hydraulic jack (4-1), oil circuit between cylinder upper cavity oil (4-1a) and oil cylinder cavity of resorption (4-1b) is communicated with by one-way throttle valve (4-5), described one-way throttle valve (4-5) is formed by throttle valve (4-5a) and one-way valve (4-5b) parallel combination, when the piston of final controlling element is encountered piston rod (4-3), (4-1a) is compressed for oil cylinder upper cylinder half, one-way throttle valve (4-5) one-way valve (4-5a) is closed, hydraulic oil in oil cylinder upper cylinder half (4-1a) enters cylinder under oil cylinder (4-1b) through one-way throttle valve (4-5) throttle valve (4-5b), to realize action of giving, and by regulating throttle valve (4-5b) to set the speed of buffering, after the piston (9) of final controlling element cylinder body (A) returns, the piston rod of damping device (4-3) is released, under the effect of Returnning spring (4-4), piston rod (4-3) moves down, now under hydraulic pressure, cylinder (4-b) is compressed, hydraulic oil in cylinder under hydraulic pressure (4-b) directly flows to rapidly cylinder upper cavity oil (4-1a) through one-way throttle valve branch road (4-5) one-way valve (4-5a), for action of giving is next time got ready.
2. the damping device of adjustable large-scale cylinder body according to claim 1, it is characterized in that: the large-scale cylinder body of described final controlling element (A) is for being symmetricly set in the first cylinder body (8) and second cylinder body (1) of final controlling element both sides, the first cylinder body (8), on the second cylinder body (1) all with joint (16), the first cylinder body (8), the second cylinder body (1) is connected with hydraulic system by joint (16), between the first cylinder body (8) and the second cylinder body (1), be folded with an interior casing with actuating device (13), described actuating device comprises gear (3), be provided with along its length the piston-rack axle (14) of the tooth that is meshed with gear (3), casing (13) is provided with the pilot hole (2) that is communicated with the first cylinder body (8) and the second cylinder body (1), piston-rack axle (14) is connected to respectively the first cylinder body (8) through pilot hole (2) two ends, on piston (9) in the second cylinder body (1), piston-rack axle (14) can move left and right along pilot hole (2) in casing (13), and drive the gear (3) being engaged on piston-rack axle (14) to rotate by piston-rack axle (14), the piston-rack axle (14) that piston in this cylinder body (9) pressurized drive is connected on this piston (9) to the right or be moved to the left, the piston (9) that the other end of piston-rack axle (14) promotes in another cylinder body moves to piston-rack axle (14) movement direction, medium in another cylinder body by compression joint on this cylinder body (16) moves to Stroke Control medium channel (B), the gear (3) being simultaneously engaged on piston-rack axle (14) is done clockwise or rotates counterclockwise under the drive of piston-rack axle (14), realize performing an action of final controlling element.
3. the damping device of adjustable large-scale cylinder body according to claim 2, is characterized in that: described medium is gas or hydraulic oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410221881.XA CN103982488B (en) | 2014-05-23 | 2014-05-23 | Adjustable buffering device of large cylinder body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410221881.XA CN103982488B (en) | 2014-05-23 | 2014-05-23 | Adjustable buffering device of large cylinder body |
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| CN103982488A true CN103982488A (en) | 2014-08-13 |
| CN103982488B CN103982488B (en) | 2017-05-24 |
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| CN201410221881.XA Active CN103982488B (en) | 2014-05-23 | 2014-05-23 | Adjustable buffering device of large cylinder body |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298964A (en) * | 2015-11-10 | 2016-02-03 | 中国工程物理研究院总体工程研究所 | Stabilizing device for hydraulic vibrating table |
| CN105864147A (en) * | 2016-04-26 | 2016-08-17 | 英诺威阀业有限公司 | Damping oil cylinder |
| CN106122169A (en) * | 2016-08-31 | 2016-11-16 | 浙江金洲管道工业有限公司 | A kind of pneumatic integrating device of band hydraulic damping |
| CN107725503A (en) * | 2017-04-28 | 2018-02-23 | 深圳市畅安达精密工业有限公司 | A kind of oil cylinder structure of hydraulic and hydraulic system with spring assist |
| CN107795279A (en) * | 2017-12-06 | 2018-03-13 | 徐工集团工程机械有限公司 | Trepan and engineering truck |
| CN107971766A (en) * | 2017-12-29 | 2018-05-01 | 苏州工业园区宏斯特机电有限公司 | A kind of rotary tooling |
| CN110092252A (en) * | 2019-04-19 | 2019-08-06 | 辽宁工程技术大学 | A kind of hydraulic type buffer of elevator performance synthesis detection system |
| CN111022417A (en) * | 2019-11-05 | 2020-04-17 | 扬州市卓瑞液压装备科技有限公司 | Buffering hydraulic cylinder |
| CN111491748A (en) * | 2017-12-11 | 2020-08-04 | Cml国际有限公司 | Hydraulic operated rotary pipe bender |
| CN112581847A (en) * | 2020-12-04 | 2021-03-30 | 湖南汉坤实业有限公司 | Suspension type dynamic experience platform control system |
| CN112581846A (en) * | 2020-12-04 | 2021-03-30 | 湖南汉坤实业有限公司 | Support formula active experience platform control system |
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| CN102996564A (en) * | 2013-01-04 | 2013-03-27 | 东风汽车股份有限公司 | Swing rack cylinder with buffer |
| CN203847482U (en) * | 2014-05-23 | 2014-09-24 | 浙江百得自动化仪表有限公司 | Adjustable large cylinder buffer device |
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| DE2712011A1 (en) * | 1976-03-31 | 1977-10-06 | Inventio Ag | Lift system spring buffer - has coil spring ends coupled to piston and cylinder of one:way hydraulic damper to prevent rapid spring expansion |
| CN2174590Y (en) * | 1993-07-05 | 1994-08-17 | 王杰 | Unidirectional hydraulic damper |
| CN201473256U (en) * | 2009-09-07 | 2010-05-19 | 浙江恒达富士电梯有限公司 | Hydraulic damp elevator brake |
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| CN201646840U (en) * | 2010-04-27 | 2010-11-24 | 宁波如意股份有限公司 | Rear wheel steering driving structure for engineering vehicle |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298964A (en) * | 2015-11-10 | 2016-02-03 | 中国工程物理研究院总体工程研究所 | Stabilizing device for hydraulic vibrating table |
| CN105864147A (en) * | 2016-04-26 | 2016-08-17 | 英诺威阀业有限公司 | Damping oil cylinder |
| CN106122169B (en) * | 2016-08-31 | 2018-07-27 | 浙江金洲管道工业有限公司 | A kind of pneumatic integrating device with hydraulic damping |
| CN106122169A (en) * | 2016-08-31 | 2016-11-16 | 浙江金洲管道工业有限公司 | A kind of pneumatic integrating device of band hydraulic damping |
| CN107725503A (en) * | 2017-04-28 | 2018-02-23 | 深圳市畅安达精密工业有限公司 | A kind of oil cylinder structure of hydraulic and hydraulic system with spring assist |
| CN107725503B (en) * | 2017-04-28 | 2024-02-02 | 深圳甄创科技有限公司 | Hydraulic cylinder structure with spring assistance and hydraulic system |
| CN107795279A (en) * | 2017-12-06 | 2018-03-13 | 徐工集团工程机械有限公司 | Trepan and engineering truck |
| CN111491748A (en) * | 2017-12-11 | 2020-08-04 | Cml国际有限公司 | Hydraulic operated rotary pipe bender |
| CN111491748B (en) * | 2017-12-11 | 2023-03-14 | Cml国际有限公司 | Hydraulic operated rotary pipe bender |
| CN107971766A (en) * | 2017-12-29 | 2018-05-01 | 苏州工业园区宏斯特机电有限公司 | A kind of rotary tooling |
| CN107971766B (en) * | 2017-12-29 | 2024-01-09 | 苏州工业园区宏斯特机电有限公司 | Rotary tool |
| CN110092252A (en) * | 2019-04-19 | 2019-08-06 | 辽宁工程技术大学 | A kind of hydraulic type buffer of elevator performance synthesis detection system |
| CN111022417A (en) * | 2019-11-05 | 2020-04-17 | 扬州市卓瑞液压装备科技有限公司 | Buffering hydraulic cylinder |
| CN112581847A (en) * | 2020-12-04 | 2021-03-30 | 湖南汉坤实业有限公司 | Suspension type dynamic experience platform control system |
| CN112581846A (en) * | 2020-12-04 | 2021-03-30 | 湖南汉坤实业有限公司 | Support formula active experience platform control system |
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| CN103982488B (en) | 2017-05-24 |
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Denomination of invention: Buffer device of adjustable large cylinder block Effective date of registration: 20201229 Granted publication date: 20170524 Pledgee: Zhejiang Yongjia Rural Commercial Bank Co.,Ltd. Dongou sub branch Pledgor: ZHEJIANG BAIDE AUTOMATIC METER Co.,Ltd. Registration number: Y2020330001334 |