CN201198850Y - Delaying and buffering brake mechanism of hydraulic reversing device - Google Patents
Delaying and buffering brake mechanism of hydraulic reversing device Download PDFInfo
- Publication number
- CN201198850Y CN201198850Y CNU2008200873506U CN200820087350U CN201198850Y CN 201198850 Y CN201198850 Y CN 201198850Y CN U2008200873506 U CNU2008200873506 U CN U2008200873506U CN 200820087350 U CN200820087350 U CN 200820087350U CN 201198850 Y CN201198850 Y CN 201198850Y
- Authority
- CN
- China
- Prior art keywords
- valve
- oil
- hydraulic motor
- time
- way throttle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model provides a hydraulic rotary device time-delay buffer braking mechanism which comprises a valve group connected with a hydraulic motor, a reversing valve driving the hydraulic motor to rotate, and a time-delay buffer braking system which can realize that a braker buffers the hydraulic motor in time-delay and is connected with the valve group in a sealing way; the valve group comprises a balance valve, an one-way throttle valve, an one-way relief valve, a high pressure shuttle valve and the like. When starting, high pressure oil passes through the reversing valve, and then passes through the high pressure shuttle valve and the one-way throttle valve to open the braker and the balance valve to lead the whole rotary device to run normally; when stopping, the pressure of the system can be released immediately; for the pressure-keeping function of the one-way throttle valve, part of oil pressure can be released slowly to relay the close time of the balance valve and the braker, thereby realizing the buffer function; the rotary device can release the inertial impact when stopping, so the device can run stably and avoid the impact; no additional oil line is required, so the cost is low and the size is small.
Description
Technical field
The utility model relates to the time-delay buffering braking system in a kind of hydraulic permeability reversing gear, especially works the time-delay buffer-braking mechanism of the hydraulic permeability reversing gear that discharges inertia, time-delay braking action.
Background technique
On the hydraulic gyration equipment of engineering machinery, for example lifting appliance, excavator, high-altitude operation vehicle or the like, its mode of operation is the revolution of hydraulic control hydraulic gyration motor positive and negative direction, control this motor braking by break, often adopt the Normally closed type multiple disc brake in the prior art, thereby it is to overcome spring force by oil pressure to push piston open and open break, discharges oil pressure and promotes piston by spring force, realizes braking.But this break is the existence owing to inertia in the moment of braking, will be subjected to impact in various degree, thereby cause the usability of equipment or applying working condition to be subjected to serious threat, therefore how going to eliminate or relaxing the inertia impact that brings when braking becomes present industrial quarters urgent problem.Existing time-delay braking system, realize by independent control brake oil circuit, promptly give the break oil circuit by the independent fuel feeding of another one pump, before opening, revolution opens break earlier, before braking, close working connection earlier, brake circuit is realized the time-delay braking by the opening time of time delay relay control selector valve.But such control system owing to need the one cover oil supply system of design in addition, has increased the complexity and the cost of oil circuit, so in fact seldom use.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the defective of prior art and a kind of braking task of can finishing that does not need to increase in addition oil circuit is provided, the buffer-braking of realizing again delaying time, the hydraulic permeability reversing gear time-delay buffer-braking mechanism of inertia impact when making the hydraulic gyration equipment of engineering machinery reach balance movement, safety protection and elimination braking.
Above-mentioned technical problem solves by following technological scheme:
A kind of hydraulic permeability reversing gear time-delay buffer-braking mechanism, it comprises the valve group that connects oil hydraulic motor, drive the selector valve of oil hydraulic motor sense of rotation, selector valve P is connected with oil pump, T is connected with fuel tank, while and A, the B oil circuit joins, and realize that break is sealedly connected on the valve group oil hydraulic motor time-delay buffering braking system, the selector valve A that it is characterized in that described time-delay buffering braking system, B oil circuit and high pressure shuttle, equilibrium valve is connected, another road of high pressure shuttle and the oil suction chamber of one-way throttle valve join, one-way throttle valve goes out oil pocket and is connected with break through oil transport pipeline L, be connected with the control oil channel of two equilibrium valves again simultaneously, two equilibrium valves are connected in the main oil gallery, import connects selector valve, and outlet connects oil hydraulic motor, two unidirectional relief valves in parallel between oil hydraulic motor and two equilibrium valves, the oil inlet and outlet of two unidirectional relief valves respectively with the A1 of oil hydraulic motor, B1 joins, and oil hydraulic motor is connected with fuel tank through drain tap O.
Described valve group comprises the balance valve body, with the balance valve body fixes overflow valve body and one-way throttle valve body is arranged; Whole valve group is connected on the oil inlet and outlet of oil hydraulic motor.
Described two equilibrium valves and high pressure shuttle are sealedly connected on the balance valve body, and two unidirectional relief valves are sealedly connected on the overflow valve body, and one-way throttle valve is sealedly connected on the one-way throttle valve body.
Compared with prior art, the utility model does not need to increase in addition oil circuit, by hydraulic oil break is opened and is moved turning round equipment; In the moment of braking, utilize of the shut-in time prolongation of the pressure holding function of one-way throttle valve with break, unidirectional relief valve plays a protective role when pressure moment rising, native system has been used two equilibrium valves simultaneously, and when system closing, two equilibrium valve shut-in times prolong simultaneously, so just make the inertia impact of turning round equipment when stopping to obtain basically discharging, thereby make equipment operation steady, eliminate and impact, obtain safety protection; Owing to do not need to increase in addition oil circuit, so have characteristics with low cost, that volume is small and exquisite.
Description of drawings
Fig. 1 faces structural representation for the utility model.
Fig. 2 is the right elevation of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the rear view of Fig. 1.
Fig. 5 is the utility model oil channel structures schematic diagram.
Embodiment
Below in conjunction with accompanying drawing is real the utility model embodiment is elaborated again.
Shown in Fig. 1～4, hydraulic permeability reversing gear time-delay buffer-braking mechanism, the valve group that comprises the one that is tightly connected, this valve group is based on balance valve body 5, overflow valve body 3 is connected one with one-way throttle valve body 6 usefulness bolts with packing ring, and be installed on the oil inlet and outlet of oil hydraulic motor 9, the turnover oil pipe in the hydraulic system is connected with A, the B of valve group.Two equilibrium valves 1 and high pressure shuttle 7 are sealedly connected on the balance valve body 5, and two unidirectional relief valves 4 are sealedly connected on the overflow valve body 3, and one-way throttle valve 2 is sealedly connected on the one-way throttle valve body 6.
The time-delay buffering braking system of hydraulic permeability reversing gear is seen shown in Figure 5: the P that drives the selector valve 8 of oil hydraulic motor 9 sense of rotation is connected with oil pump, and T is connected with fuel tank, joins with A, B oil circuit simultaneously.Realize the selector valve A of break to oil hydraulic motor time-delay buffer-braking, B oil circuit and high pressure shuttle 7, equilibrium valve 1 is connected, another road of high pressure shuttle 7 and the oil suction chamber of one-way throttle valve 2 join, one-way throttle valve 2 goes out oil pocket and is connected with break 10 through oil transport pipeline L, be connected with the control oil channel of two equilibrium valves 1 again simultaneously, two equilibrium valves are connected in the main oil gallery, import connects selector valve 8, outlet connects oil hydraulic motor 9, two unidirectional relief valves 4 in parallel between oil hydraulic motor and two equilibrium valves, the oil inlet and outlet of two unidirectional relief valves again respectively with the A1 of oil hydraulic motor 9, B1 joins, and oil hydraulic motor is connected with fuel tank through drain tap O.
The time-delay buffering braking system is integrated on the valve plate, and this valve plate is installed on the hydraulic gyration equipment, and the function to each valve makes a presentation below:
One-way throttle valve 2, it is the combined control valve that is formed in parallel by one-way valve and throttle valve, is used for along an accurate fluid flow of direction setting, and allows fluid oppositely freely to reflux.In native system, play and delay pressure and discharge, make friction plate be unlikely to too fast braking, make equilibrium valve 1 late release simultaneously.
The working principle of time-delay buffering braking system is described below:
During system works, pressure oil enters from the A chamber, divides two-way, leads up to one-way valve in the equilibrium valve 1, enters motor 9, and another road enters break 10 after by high pressure shuttle 7 and one-way throttle valve 2, and friction plate is opened, and also opens the equilibrium valve 1 of oil back chamber simultaneously.Whole like this oil circuit is smooth and easy, and swirl gear begins proper functioning.When closing hydraulic system, the pressure pop-off of system, but to guarantee braking steadily, break 10 and equilibrium valve 1 must time-delay closings.In order to realize this function, can come the release rate of pilot pressure by one-way throttle valve in the regulating system 2 and equilibrium valve 1, reach the purpose that delays to brake and eliminate inertia impact.In addition, in the time of system closing, B1 (or A1) cavity pressure can rise moment, and unidirectional relief valve 4 is opened if pressure surpasses setting value, thereby the protection hydraulic permeability reversing gear is not fragile.
Claims (3)
1. hydraulic permeability reversing gear time-delay buffer-braking mechanism, it comprises the valve group that connects oil hydraulic motor (9), drive the selector valve (8) of oil hydraulic motor sense of rotation, selector valve P is connected with oil pump, T is connected with fuel tank, while and A, the B oil circuit joins, and realize that break (10) is sealedly connected on the valve group oil hydraulic motor (9) time-delay buffering braking system, selector valve (8) A that it is characterized in that described time-delay buffering braking system, B oil circuit and high pressure shuttle (7), equilibrium valve (1) is connected, the oil suction chamber of another road of high pressure shuttle and one-way throttle valve (2) joins, one-way throttle valve (2) goes out oil pocket and is connected with break (10) through oil transport pipeline L, be connected with the control oil channel of two equilibrium valves (1) again simultaneously, two equilibrium valves are connected in the main oil gallery, import connects selector valve (8), outlet connects oil hydraulic motor (9), two unidirectional relief valves in parallel (4) between oil hydraulic motor and two equilibrium valves, the oil inlet and outlet of two unidirectional relief valves respectively with the A1 of oil hydraulic motor, B1 joins, and oil hydraulic motor is connected with fuel tank through drain tap O.
2. hydraulic permeability reversing gear according to claim 1 time-delay buffer-braking mechanism is characterized in that described valve group comprises balance valve body (5), with the balance valve body fixes overflow valve body (3) and one-way throttle valve body (6) is arranged; Whole valve group is connected on the oil inlet and outlet of oil hydraulic motor (9).
3. hydraulic permeability reversing gear according to claim 1 time-delay buffer-braking mechanism, it is characterized in that described two equilibrium valves (1) and high pressure shuttle (7) are sealedly connected on the balance valve body (5), two unidirectional relief valves (4) are sealedly connected on the overflow valve body (3), and one-way throttle valve (2) is sealedly connected on the one-way throttle valve body (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200873506U CN201198850Y (en) | 2008-05-16 | 2008-05-16 | Delaying and buffering brake mechanism of hydraulic reversing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200873506U CN201198850Y (en) | 2008-05-16 | 2008-05-16 | Delaying and buffering brake mechanism of hydraulic reversing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201198850Y true CN201198850Y (en) | 2009-02-25 |
Family
ID=40450005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200873506U Expired - Fee Related CN201198850Y (en) | 2008-05-16 | 2008-05-16 | Delaying and buffering brake mechanism of hydraulic reversing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201198850Y (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994727A (en) * | 2010-12-29 | 2011-03-30 | 郑州宇通重工有限公司 | Balance valve having two-stage pressure buffering protection function |
| CN102269189A (en) * | 2011-07-04 | 2011-12-07 | 长沙中联重工科技发展股份有限公司 | Hydraulic control loop |
| CN102269190A (en) * | 2011-07-04 | 2011-12-07 | 长沙中联重工科技发展股份有限公司 | Hydraulic control loop |
| CN102705288A (en) * | 2012-06-19 | 2012-10-03 | 常德中联重科液压有限公司 | Anti-shaking balance valve, telescopic control loop of hydraulic cylinder and hydraulic device |
| CN102762798A (en) * | 2009-12-24 | 2012-10-31 | 斗山英维高株式会社 | Apparatus for controlling a swing brake for construction machinery |
| WO2013003997A1 (en) * | 2011-07-04 | 2013-01-10 | 长沙中联重工科技发展股份有限公司 | Hydraulic control loop circuit |
| CN102878141A (en) * | 2012-10-27 | 2013-01-16 | 郑州宇通重工有限公司 | Combined type rotary motor reversion-preventing buffering balanced valve |
| CN103015483A (en) * | 2012-11-30 | 2013-04-03 | 三一重机有限公司 | Time delay brake system of hydraulic slewing device and engineering machine |
| CN103459857A (en) * | 2011-04-01 | 2013-12-18 | 日立建机株式会社 | Hydraulic drive of machinery |
| CN103883575A (en) * | 2012-12-21 | 2014-06-25 | 三一重工股份有限公司 | Rotary cushion valve, rotary hydraulic system and engineering machine |
| CN104019084A (en) * | 2014-06-04 | 2014-09-03 | 宁波中意液压马达有限公司 | Hydraulic rotation buffering system |
| WO2015165344A1 (en) * | 2014-04-29 | 2015-11-05 | 三一汽车制造有限公司 | Rotary hydraulic system and concrete conveying pump apparatus |
| CN105347216A (en) * | 2015-12-02 | 2016-02-24 | 北华航天工业学院 | High-reliability mining elevator hydraulic control system |
| CN105805064A (en) * | 2016-04-25 | 2016-07-27 | 北汽福田汽车股份有限公司 | Engineering machine and rotation mechanism hydraulic system thereof |
| CN106194865A (en) * | 2016-08-31 | 2016-12-07 | 国汇机械制造泰州有限公司 | Paratrooper brake system |
| CN107150955A (en) * | 2017-04-20 | 2017-09-12 | 北汽福田汽车股份有限公司 | Hydraulic system of crane and crane |
| CN107956234A (en) * | 2017-12-27 | 2018-04-24 | 青岛雷沃工程机械有限公司 | Excavator rotary motor hydraulic braking system |
| CN108105192A (en) * | 2017-12-19 | 2018-06-01 | 宁波文泽机电技术开发有限公司 | A kind of buffer-braking valve |
| CN111677712A (en) * | 2020-07-21 | 2020-09-18 | 徐州徐工随车起重机有限公司 | Rotary buffer valve device, speed reducer and using method of speed reducer |
| CN112483496A (en) * | 2020-11-13 | 2021-03-12 | 宁波卡桑尼液压传动有限公司 | Hydraulic control slewing gear of static pile press and control method thereof |
| CN113864269A (en) * | 2021-09-22 | 2021-12-31 | 中车太原机车车辆有限公司 | Oil circuit conversion device of hydraulic system |
-
2008
- 2008-05-16 CN CNU2008200873506U patent/CN201198850Y/en not_active Expired - Fee Related
Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102762798B (en) * | 2009-12-24 | 2016-01-20 | 斗山英维高株式会社 | The trainstop control device of engineering machinery |
| CN102762798A (en) * | 2009-12-24 | 2012-10-31 | 斗山英维高株式会社 | Apparatus for controlling a swing brake for construction machinery |
| CN101994727A (en) * | 2010-12-29 | 2011-03-30 | 郑州宇通重工有限公司 | Balance valve having two-stage pressure buffering protection function |
| CN101994727B (en) * | 2010-12-29 | 2012-11-28 | 郑州宇通重工有限公司 | Balance valve having two-stage pressure buffering protection function |
| US9285023B2 (en) | 2011-04-01 | 2016-03-15 | Hitachi Construction Machinery Co., Ltd. | Hydraulic drive of operating machine |
| CN103459857B (en) * | 2011-04-01 | 2015-11-25 | 日立建机株式会社 | The fluid pressure drive device of Work machine |
| CN103459857A (en) * | 2011-04-01 | 2013-12-18 | 日立建机株式会社 | Hydraulic drive of machinery |
| CN102269189B (en) * | 2011-07-04 | 2013-03-27 | 中联重科股份有限公司 | Hydraulic control loop |
| CN102269190B (en) * | 2011-07-04 | 2013-06-05 | 中联重科股份有限公司 | Hydraulic control loop |
| WO2013003997A1 (en) * | 2011-07-04 | 2013-01-10 | 长沙中联重工科技发展股份有限公司 | Hydraulic control loop circuit |
| CN102269190A (en) * | 2011-07-04 | 2011-12-07 | 长沙中联重工科技发展股份有限公司 | Hydraulic control loop |
| CN102269189A (en) * | 2011-07-04 | 2011-12-07 | 长沙中联重工科技发展股份有限公司 | Hydraulic control loop |
| CN102705288A (en) * | 2012-06-19 | 2012-10-03 | 常德中联重科液压有限公司 | Anti-shaking balance valve, telescopic control loop of hydraulic cylinder and hydraulic device |
| CN102878141A (en) * | 2012-10-27 | 2013-01-16 | 郑州宇通重工有限公司 | Combined type rotary motor reversion-preventing buffering balanced valve |
| CN102878141B (en) * | 2012-10-27 | 2014-11-19 | 郑州宇通重工有限公司 | Combined type rotary motor reversion-preventing buffering balanced valve |
| CN103015483A (en) * | 2012-11-30 | 2013-04-03 | 三一重机有限公司 | Time delay brake system of hydraulic slewing device and engineering machine |
| CN103015483B (en) * | 2012-11-30 | 2015-06-10 | 三一重机有限公司 | Time delay brake system of hydraulic slewing device and engineering machine |
| CN103883575A (en) * | 2012-12-21 | 2014-06-25 | 三一重工股份有限公司 | Rotary cushion valve, rotary hydraulic system and engineering machine |
| CN103883575B (en) * | 2012-12-21 | 2017-02-22 | 三一汽车起重机械有限公司 | Rotary cushion valve, rotary hydraulic system and engineering machine |
| WO2015165344A1 (en) * | 2014-04-29 | 2015-11-05 | 三一汽车制造有限公司 | Rotary hydraulic system and concrete conveying pump apparatus |
| CN104019084A (en) * | 2014-06-04 | 2014-09-03 | 宁波中意液压马达有限公司 | Hydraulic rotation buffering system |
| CN105347216A (en) * | 2015-12-02 | 2016-02-24 | 北华航天工业学院 | High-reliability mining elevator hydraulic control system |
| CN105805064A (en) * | 2016-04-25 | 2016-07-27 | 北汽福田汽车股份有限公司 | Engineering machine and rotation mechanism hydraulic system thereof |
| CN106194865A (en) * | 2016-08-31 | 2016-12-07 | 国汇机械制造泰州有限公司 | Paratrooper brake system |
| CN107150955A (en) * | 2017-04-20 | 2017-09-12 | 北汽福田汽车股份有限公司 | Hydraulic system of crane and crane |
| CN108105192A (en) * | 2017-12-19 | 2018-06-01 | 宁波文泽机电技术开发有限公司 | A kind of buffer-braking valve |
| CN108105192B (en) * | 2017-12-19 | 2019-11-15 | 浙江百思达水暖股份有限公司 | A kind of buffer-braking valve |
| CN107956234A (en) * | 2017-12-27 | 2018-04-24 | 青岛雷沃工程机械有限公司 | Excavator rotary motor hydraulic braking system |
| CN111677712A (en) * | 2020-07-21 | 2020-09-18 | 徐州徐工随车起重机有限公司 | Rotary buffer valve device, speed reducer and using method of speed reducer |
| CN112483496A (en) * | 2020-11-13 | 2021-03-12 | 宁波卡桑尼液压传动有限公司 | Hydraulic control slewing gear of static pile press and control method thereof |
| CN113864269A (en) * | 2021-09-22 | 2021-12-31 | 中车太原机车车辆有限公司 | Oil circuit conversion device of hydraulic system |
| CN113864269B (en) * | 2021-09-22 | 2023-09-08 | 中车太原机车车辆有限公司 | Hydraulic system oil circuit conversion device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201198850Y (en) | Delaying and buffering brake mechanism of hydraulic reversing device | |
| CN210623231U (en) | Hydraulic pressure slewer buffer system | |
| CN102874704B (en) | Hydraulic system, hoisting mechanism and engineering machinery | |
| CN103883575B (en) | Rotary cushion valve, rotary hydraulic system and engineering machine | |
| CN201786795U (en) | Hydraulic pressure stop valve | |
| DE502006007369D1 (en) | VALVE, ESPECIALLY PROPORTIONAL PRESSURE LIMITING VALVE | |
| CN101688619B (en) | A non-return valve | |
| CN111720593B (en) | Multifunctional check valve | |
| WO2007136998A3 (en) | Shock valve for hydraulic device | |
| CN104533863A (en) | Rotary system control valve of crane | |
| CN204476899U (en) | A kind of crane rotation system control valve | |
| CN103754804B (en) | A kind of Buffer control system of hydraulic aerial cage | |
| CN202381448U (en) | Hydraulic oil cylinder and hydraulic system | |
| WO1997038250A1 (en) | Water-hammerless check valve | |
| CN102667215A (en) | Clutch system and method for operating a clutch system | |
| CN201799552U (en) | Hydraulic system for proportional overflow pressure relief for hydraulic forging press | |
| CN202657611U (en) | Hydraulic speed regulation brake device for downward belt | |
| CN202215805U (en) | Water attack release valve | |
| CN103388692A (en) | Gas pipeline check valve | |
| KR100594851B1 (en) | Hydraulic breaking circuit | |
| CN206071989U (en) | A kind of oil way integrated valve block for grab bucket | |
| CN106763934A (en) | The lift check and cut-off combination valve of dual drive quick closedown | |
| CN102996554A (en) | Pilot oil source valve for excavator | |
| CN105351407A (en) | Combined brake control device | |
| CN103334471A (en) | Travel motor control valve of excavator |
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: 20090225 Termination date: 20150516 |
|
| EXPY | Termination of patent right or utility model |