CN106015147B - A kind of shuttle valve with middle position unloading function and fluid motor-driven brakes - Google Patents
A kind of shuttle valve with middle position unloading function and fluid motor-driven brakes Download PDFInfo
- Publication number
- CN106015147B CN106015147B CN201610602738.4A CN201610602738A CN106015147B CN 106015147 B CN106015147 B CN 106015147B CN 201610602738 A CN201610602738 A CN 201610602738A CN 106015147 B CN106015147 B CN 106015147B
- Authority
- CN
- China
- Prior art keywords
- valve
- oil
- shuttle valve
- road
- brake
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of shuttle valve with middle position unloading function and fluid motor-driven brakes, belongs to fluid motor-driven braking technology field.The top of the shuttle valve valve pocket of the present invention is connected by oil road with oil-out C, the bottom of the valve pocket is provided with back oil road, the inside of valve element is machined with the through hole being vertically distributed, and the left and right both ends of valve element are provided with elasticity reset device, when hydraulic system fuel cut-off, valve element forced resetting is made by elasticity reset device, so that oil road, through hole and back oil road connect the unloading channel to form shuttle valve；The fluid motor-driven brakes of the present invention, including the brake and shuttle valve of hydraulic motor are acted on, the oil-out C of the shuttle valve is connected by pipeline with the interface that surges of brake, and described shuttle valve is using the shuttle valve described in any of the above-described.The present invention can make shuttle valve carry out pressure release as requested, so as to ensure the normal brake application of brake, hydraulic motor gear is driven normal work.
Description
Technical field
The invention belongs to fluid motor-driven braking technology field, more specifically to a kind of band middle position unloading function
Shuttle valve and fluid motor-driven brakes.
Background technology
With developing rapidly for economy, the carrying of sawmill and related factory to wood grabs wood mainly by log grapple
Device is the important plant equipment in timber loader, and the quality of log grapple performance directly affects the operating efficiency of timber crawl.
It is mechanically that wood is grabbed in the machine driving drive between relying part part and existing log grapple mainly includes two kinds of mechanical structure and fluid pressure type
The closure or opening of device, fluid pressure type are to control hydraulic rotary motor both forward and reverse directions to turn round by hydraulic pump, and wood is grabbed so as to control
The motion of device, greatly reduce part transmission.
Fluid pressure type revolution log grapple generally drives grab bucket to be rotated by rotating driving device in the course of the work, and shows
The rotation driving for having fluid pressure type revolution log grapple uses worm and gear drive device mostly, because worm and gear drive device has
Good auto-lock function, without being braked using extra brake apparatus, but worm screw is easily damaged in transmission process, needs
Often change, so as to influence the normal operation of log grapple, cause that its operating efficiency is low, and operating cost greatly increases.
In order to solve problem above, applicant replaces worm and gear drive device using gear driving, so as to reduce
The damage and replacing of device for revolving and driving, significantly improve the operating efficiency of log grapple.Said gear driving is to pass through hydraulic motor
Drive gear mechanism makees gyration, is rotated so as to driving grab bucket, but because gear does not have auto-lock function, Wu Fashi
The braking of existing log grapple rotation driving, it is therefore desirable to set special brake to brake fluid motor-driven.Existing liquid
The brake generally use normally closed type multiple disk brake of pressure motor driving, the oil inlet of the brake and the oil-out of shuttle valve
Be connected, when by oil inlet fuel feeding from shuttle valve to brake when, piston is pushed open so as to by brake by oil pressure counter spring force
Open, fluid motor-driven is run well；When closing hydraulic system, hydraulic system fuel cut-off, the oil pressure in brake
Discharge and piston is promoted by spring force, so as to realize the braking of hydraulic motor.But when the fluid oil return in above-mentioned brake, by
It is too high in hydraulic system return oil pressure, so as to cause existing shuttle valve can not pressure release as requested, in turn resulting in brake can not be just
Often braking, influence the normal work of fluid motor-driven.
Such as, Chinese Patent Application No. 200820087350.6, the applying date are on 05 16th, 2008, invention and created name
For：Hydraulic permeability reversing gear delay buffer-braking mechanism, this application case include the valve group of connection hydraulic motor, drive hydraulic motor rotary
The reversal valve in dynamic direction, and realize that brake is sealedly connected in valve group to the brakes of hydraulic motor delay buffering,
Hydraulic oil opens brake and balanced valve through reversal valve by high pressure shuttle and one-way throttle valve during startup, makes whole slewing equipment
Normal work；The system pressure pop-off when stopping, due to the pressure holding function of one-way throttle valve, a part of oil pressure is slowly released
Put, carry out the shut-in time of delay balance valve and brake, so as to realize pooling feature, make apparatus for rotating used when stopping
Property impact release, operated steadily so as to reach equipment, eliminates impact purpose.But the fluid in this application case in brake is i.e. not
The smooth oil return of energy, so as to cause brake to be unable to normal brake application, influences the normal work of fluid motor-driven.
The content of the invention
1. invention technical problems to be solved
During it is an object of the invention to overcome existing fluid motor-driven to be driven using gear, because hydraulic system is returned
Oily back pressure is too high, so as to cause brake to be unable to the deficiency of normal brake application, there is provided a kind of shuttle valve with middle position unloading function and
Fluid motor-driven brakes.The present invention can effectively eliminate back pressure, shuttle valve is carried out pressure release as requested, so as to
Ensure the normal brake application of brake, hydraulic motor gear is driven normal work.
2. technical scheme
To reach above-mentioned purpose, technical scheme provided by the invention is：
First, a kind of shuttle valve with middle position unloading function of the present invention, including valve body and valve element, the valve inner are provided with
Valve pocket, valve element are located inside valve pocket and can moved left and right along valve pocket；The left and right both ends of the valve pocket respectively with the first oil inlet A1
And second oil inlet B1 be connected, the top of the valve pocket is connected by oil road with oil-out C, and the bottom of the valve pocket is set
There is back oil road, step trough is machined with the middle part of valve element, and the left and right both ends of valve element are provided with elasticity reset device, work as hydraulic system
During fuel cut-off, valve element force revert middle position is made by elasticity reset device, so that passing through rank between oil road and back oil road
Terraced groove connects the unloading channel to form shuttle valve.
Further, described elasticity reset device includes the first spring and second spring, wherein, the two of the first spring
End is fixedly connected with the screw plug of valve pocket left end and the left end of valve element respectively, the both ends of second spring respectively with the screw plug of valve pocket right-hand member and
The right-hand member of valve element is fixedly connected with, and when valve element is in middle position, above-mentioned two spring is in no deformation state.
Further, the first described spring and second spring are identical two springs.
Further, described oil road includes the first oil road, the second oil road and the 3rd oil road, when valve element position
When valve pocket right-hand member, the first described oil inlet A1 and the first oil road are unfolded into path；When valve element is located at valve pocket left end,
The second described oil inlet B1 and the 3rd oil road are unfolded into path；When valve element is in middle position, the second described oil road
Connect to form off-load path between back oil road.
Further, described oil-out C is connected by pipeline with acting on the brake of hydraulic motor；Described returns
Oil duct is connected with oil return opening D, and oil return opening D is connected by pipeline with fuel tank.
Second, the present invention a kind of fluid motor-driven brakes, including act on hydraulic motor brake and
Shuttle valve, the oil-out C of the shuttle valve are connected by pipeline with the interface that surges of brake, and described shuttle valve uses any of the above-described
Described shuttle valve.
Further, the back oil road of the shuttle valve is connected with oil return opening D, and oil return opening D is connected by pipeline with fuel tank.
Further, the brakes also includes oil pump and reversal valve, and the delivery outlet of the oil pump passes through one-way throttle
Valve is connected with the oil inlet P of reversal valve, and the oil return inlet T of the reversal valve is connected with fuel tank, two actuator ports of the reversal valve
A, B is connected by pipeline with two oil inlets A1, B1 of shuttle valve and two oil inlets of hydraulic motor respectively.
Further, described oil pump is connected with motor, and the oil inlet of the oil pump is connected with fuel tank.
3. beneficial effect
Using technical scheme provided by the invention, compared with prior art, there is following remarkable result：
(1) a kind of shuttle valve with middle position unloading function of the invention, the top of the valve pocket passes through oil road and oil-out C
It is connected, the bottom of the valve pocket is provided with back oil road, step trough is machined with the middle part of valve element, and the left and right both ends of valve element are provided with
Elasticity reset device, when hydraulic system fuel cut-off, valve element force revert middle position is made by elasticity reset device, so as to use
The unloading channel to form shuttle valve is connected between oil duct and back oil road by step trough.The present invention is by elasticity reset device and unloads
The setting of lotus passage, so as to so that fluid in brake is well on oil return by unloading channel, eliminate back pressure influence,
The brake for overcoming existing hydraulic motor is unable to the deficiency of normal brake application, so as to advantageously ensure that the normal of fluid motor-driven
Work.
(2) a kind of shuttle valve with middle position unloading function of the invention, described elasticity reset device include the first spring and
Second spring, wherein, the both ends of the first spring are fixedly connected with the screw plug of valve pocket left end and the left end of valve element respectively, second spring
Both ends are fixedly connected with the screw plug of valve pocket right-hand member and the right-hand member of valve element respectively, and when valve element is in middle position, above-mentioned two spring is equal
In without deformation state, thereby may be ensured that when hydraulic system is stopped, no matter hydraulic motor, which is in, rotates forward or inverts,
The parking position accuracy of valve element and the smooth relief brake of brake can be ensured by the effect of the first spring and second spring.
(3) a kind of shuttle valve with middle position unloading function of the invention, its oil road include the first oil road, the second oil road
And the 3rd oil road, by the way that the oil road under different working condition is independently arranged, so as to prevent each hydraulic fluid port of shuttle valve
And interfering between different working condition, further ensure the normal work of shuttle valve and the normal brake application of brake and releasing
Braking.
(4) a kind of shuttle valve with middle position unloading function of the invention, its back oil road is connected with oil return opening D, and oil return opening D leads to
Piping is connected with fuel tank, so as to be recycled to the fluid in brake, prevents the wasting of resources.
(5) a kind of fluid motor-driven brakes of the invention, including act on the brake and shuttle of hydraulic motor
Valve, by optimizing design to the structure of shuttle valve, middle position unloading function is made it have, thereby may be ensured that the normal of brake
Off-load and braking, fluid motor-driven normal work.
Brief description of the drawings
Fig. 1 is a kind of structural representation of shuttle valve with middle position unloading function of the present invention；
Fig. 2 is the schematic cross-sectional view in the A-A directions along Fig. 1；
Fig. 3 is the operation principle schematic diagram of the fluid motor-driven brakes of the present invention.
Label declaration in schematic diagram：
1st, valve body；2nd, valve element；201st, step trough；301st, the first spring；302nd, second spring；4th, screw plug；501st, first goes out
Oil duct；502nd, the second oil road；503rd, the 3rd oil road；6th, back oil road；7th, hydraulic motor；8th, fuel tank；9th, reversal valve；10th, it is single
To choke valve；11st, oil pump；12nd, motor；13rd, brake.
Embodiment
To further appreciate that present disclosure, in conjunction with drawings and examples, the present invention is described in detail.
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of shuttle valve with middle position unloading function of the present embodiment, including valve body 1 and valve element 2, institute
State the inside of valve body 1 and be provided with valve pocket, valve element 2 is located inside valve pocket and can moved left and right along valve pocket；The left and right both ends of the valve pocket point
It is not connected by oil input channel with the first oil inlet A1 and the second oil inlet B1, above-mentioned oil input channel is vertically arranged with valve pocket, described
The top of valve pocket is connected by oil road with oil-out C, and oil-out C passes through pipeline and the brake for acting on hydraulic motor
It is connected.The bottom of valve pocket is provided with back oil road 6 in the present embodiment, and the middle part of valve element 2 is machined with step trough 201 and (processed valve element 2
It is less than the ladder circle column construction of both ends diameter for mid diameter), and the left and right both ends of valve element 2 are provided with elasticity reset device, when
During hydraulic system fuel cut-off, the force revert middle position of valve element 2 is made by elasticity reset device, so that oil road, step trough 201
And connection forms the unloading channel of shuttle valve between back oil road 6.
What deserves to be explained is existing shuttle valve generally comprises only three paths, i.e. two oil inlets and an oil-out, work as liquid
Pressure system fuel cut-off, i.e., during fluid oil return in brake, because hydraulic system return oil pressure is too high, so as to cause existing shuttle
Valve can not carry out pressure release as requested, influence the normal brake application of brake, and this is also to use hydraulic motor gear driving as drive
The problem of being frequently present of during dynamic system, but suffer from and do not solved well.Inventor, which passes through to study for a long period of time, to be had been surprisingly found that,
By using the shuttle valve of the present embodiment, i.e., by the setting of elasticity reset device and unloading channel, so as to so that brake
Interior fluid is well on oil return by unloading channel, is eliminated back pressure influence, is overcome the brake of existing hydraulic motor not
The deficiency of energy normal brake application, so as to advantageously ensure that the normal work of fluid motor-driven.
Embodiment 2
As Figure 1-3, a kind of shuttle valve with middle position unloading function of the present embodiment, including valve body 1 and valve element 2, it is described
The inside of valve body 1 is provided with valve pocket, and valve element 2 is located inside valve pocket and can moved left and right along valve pocket；The left and right both ends difference of the valve pocket
It is connected by oil input channel with the first oil inlet A1 and the second oil inlet B1, above-mentioned oil input channel is vertically arranged with valve pocket, so as to one
On the other hand aspect can also pass through first by the first oil inlet A1 and second oil inlet B1 oil-feeds into shuttle valve valve pocket
Two oil inlet A2, B2 oil-feeds of the oil inlet A1 and the second oil inlet B1 to hydraulic motor 7.The top of above-mentioned valve pocket passes through fuel-displaced
Road is connected with oil-out C, and oil-out C is connected by pipeline with acting on the brake of hydraulic motor.Valve in the present embodiment
The bottom of chamber is provided with back oil road 6, and the middle part of valve element 2 is machined with step trough 201, and the left and right both ends of valve element 2 are provided with elastic reset
Device, when hydraulic system fuel cut-off, the force revert middle position of valve element 2 is made by elasticity reset device so that oil road with
The unloading channel for forming shuttle valve is connected between back oil road 6 by step trough 201.
The elasticity reset device of the present embodiment includes the first spring 301 and second spring 302, wherein, the first spring 301
Both ends are fixedly connected with the screw plug 4 of valve pocket left end and the left end of valve element 2 respectively, the both ends of second spring 302 respectively with valve pocket right-hand member
Screw plug 4 and the right-hand member of valve element 2 be fixedly connected with, when valve element 2 is in middle position, above-mentioned two spring is in no deformation state, i.e.,
Recover former long, thereby may be ensured that when hydraulic system is stopped, no matter hydraulic motor 7 is in rotating forward or reversion, equal energy
The parking position accuracy of valve element 2 and the smooth off-load system of brake 13 are ensured by the first spring 301 and the effect of second spring 302
It is dynamic.Above-mentioned first spring 301 and second spring 302 are identical two springs, so as to avoid due to spring in itself
Error caused by pressure difference, it is further ensured that the normal brake application of brake.
The oil road of the present embodiment includes the first oil road 501, the second oil road 502 and the 3rd oil road 503, works as valve element
2 when being located at valve pocket right-hand member, and the first described oil inlet A1 and the first oil road 501 are unfolded into path, and fluid enters by first
Enter brake 13 through oil-out C after hydraulic fluid port A1, the first oil road 501；When valve element 2 is located at valve pocket left end, described second
Oil inlet B1 and the 3rd oil road 503 are unfolded into path, fluid by after the second oil inlet B1, the 3rd oil road 503 through going out
Hydraulic fluid port C enters brake 13；When valve element 2 is in middle position, the second described oil road 502 is interconnected with back oil road 6 to be formed
Off-load path, the fluid in brake carry out oil return through the off-load path.Above-mentioned back oil road 6 is connected with oil return opening D, and oil return opening
D is connected by pipeline with fuel tank 8, so as to be recycled to the fluid in brake 13, prevents the wasting of resources.This reality
Example is applied by the way that the oil road under different working condition is independently arranged, so as to prevent each hydraulic fluid port of shuttle valve and different operating
Interfering between state, further ensure the normal work of shuttle valve and the normal brake application of brake and release braking.
A kind of fluid motor-driven brakes of the present embodiment, including act on brake 13, the shuttle of hydraulic motor 7
Valve, oil pump 11 and reversal valve 9, described oil pump 11 is connected with motor 12, and the oil inlet of the oil pump 11 is connected with fuel tank 8, institute
The delivery outlet for stating oil pump 11 is connected by one-way throttle valve 10 with the oil inlet P of reversal valve 9, the oil return inlet T and fuel tank of reversal valve 9
8 are connected, and two actuator ports A, B of the reversal valve 9 pass through pipeline and two oil inlets A1, B1 of shuttle valve and hydraulic pressure horse respectively
Up to 7 two oil inlets A2, B2 be connected (specifically, be by the first oil inlet A1 and the second oil inlet B1 into shuttle valve valve pocket
And two oil inlet fuel feeding of hydraulic motor 7), the oil-out D of above-mentioned shuttle valve passes through pipeline and the interface that surges of brake 13
It is connected, shuttle valve used herein uses the shuttle valve with middle position unloading function of the present embodiment.
The operation principle schematic diagram of the fluid motor-driven brakes of the present embodiment is as shown in figure 3, its specific works
Process is as follows：
A, when A mouth of the fluid that oil pump 11 exports through reversal valve 9 exports, fluid is entered by the first oil inlet A1 of shuttle valve
Shuttle valve valve pocket, so as to promote valve element 2 to move right, the first oil inlet A1 and the first oil road 501 are unfolded into path, other oil
Mouth is blocked, and pressure oil is solved by exiting into brake 13 through oil-out C after the first oil inlet A1, the first oil road 501
Except braking.Pressure oil also enters the first working hole A2 of hydraulic motor 7 by pipeline simultaneously, so that hydraulic motor 7 rotates forward, changes
It is its oil return opening to the B mouths of valve 9.
B, when the A mouth fuel cut-offs of reversal valve 9, hydraulic motor 7 shuts down, and valve element 2 is in the first spring 301 and second
Forced resetting in the presence of spring 302, that is, recover middle position, so that the oil-out C and oil return opening D of shuttle valve are connected, brake 13
Pressure release is carried out, so as to carry out effective brake to the inertia of load.
C, when reversal valve 9 commutates, B mouth of the fluid through reversal valve 9 that oil pump 11 exports is exported and entered by the second of shuttle valve
Hydraulic fluid port B1 enters in the valve pocket of shuttle valve, so as to promote valve element 2 to be opened to left movement, the second oil inlet B1 with the 3rd oil road 503
Path is formed, other hydraulic fluid ports are blocked, and pressure oil after the second oil inlet B1, the 3rd oil road 503 through oil-out C by entering
The interface that surges of brake 13, so as to release braking, while pressure oil also enters the second working hole of hydraulic motor 7 by pipeline
B2, so that hydraulic motor 7 inverts, the A mouths of reversal valve 9 are its oil return opening.
Embodiment 3
A kind of log grapple gyroscopic drive system of the present embodiment, including hydraulic motor 7 and gear drive, pass through hydraulic pressure
The drive gear transmission mechanism of motor 7 is turned round, and so as to drive grab bucket to be rotated, the gyroscopic drive system of the present embodiment also wraps
Include the hydraulic motor brakes in embodiment 2.
Schematically the present invention and embodiments thereof are described above, this describes no restricted, institute in accompanying drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So if common skill of this area
Art personnel are enlightened by it, without departing from the spirit of the invention, without designing and the technical scheme for creativeness
Similar frame mode and embodiment, protection scope of the present invention all should be belonged to.
Claims (9)
1. a kind of shuttle valve with middle position unloading function, including valve body (1) and valve element (2), the valve body (1) is internal to be provided with valve pocket,
Valve element (2) is located inside valve pocket and can moved left and right along valve pocket；The left and right both ends of the valve pocket respectively with the first oil inlet A1 and
Second oil inlet B1 is connected, and the top of the valve pocket is connected by oil road with oil-out C, it is characterised in that：The valve
The bottom of chamber is provided with back oil road (6), is machined with step trough (201) in the middle part of valve element (2), and the left and right both ends of valve element (2) are provided with
Elasticity reset device, when hydraulic system fuel cut-off, valve element (2) force revert middle position is made by elasticity reset device, so as to
Make to connect the unloading channel to form shuttle valve between oil road and back oil road (6) by step trough (201).
A kind of 2. shuttle valve with middle position unloading function according to claim 1, it is characterised in that：Described elastic reset dress
Put including the first spring (301) and second spring (302), wherein, the both ends of the first spring (301) spiral shell with valve pocket left end respectively
Stifled (4) and the left side of valve element (2) are fixedly connected with, the both ends of second spring (302) screw plug (4) and valve element with valve pocket right-hand member respectively
(2) right side is fixedly connected with, and when valve element (2) is in middle position, above-mentioned two spring is in no deformation state.
A kind of 3. shuttle valve with middle position unloading function according to claim 2, it is characterised in that：The first described spring
(301) and second spring (302) is identical two springs.
A kind of 4. shuttle valve with middle position unloading function according to any one of claim 1-3, it is characterised in that：Described
Oil road includes the first oil road (501), the second oil road (502) and the 3rd oil road (503), when valve element (2) is located at valve pocket
During right-hand member, the first described oil inlet A1 and the first oil road (501) are unfolded into path；When valve element (2) is located at valve pocket left end
When, the second described oil inlet B1 and the 3rd oil road (503) are unfolded into path；It is described when valve element (2) is in middle position
Connect to form off-load path between second oil road (502) and back oil road (6).
A kind of 5. shuttle valve with middle position unloading function according to claim 4, it is characterised in that：Described oil-out C leads to
Piping is connected with acting on the brake (13) of hydraulic motor；Described back oil road (6) is connected with oil return opening D, and oil return opening D
It is connected by pipeline with fuel tank (8).
6. a kind of fluid motor-driven brakes, including the brake (13) and shuttle valve of hydraulic motor (7) are acted on, it is described
The oil-out C of shuttle valve is connected by pipeline with the interface that surges of brake (13), it is characterised in that：Described shuttle valve uses right
It is required that the shuttle valve any one of 1-4.
A kind of 7. fluid motor-driven brakes according to claim 6, it is characterised in that：The oil return of the shuttle valve
Road (6) is connected with oil return opening D, and oil return opening D is connected by pipeline with fuel tank (8).
A kind of 8. fluid motor-driven brakes according to claim 6 or 7, it is characterised in that：The brakes
Also include oil pump (11) and reversal valve (9), the delivery outlet of the oil pump (11) passes through one-way throttle valve (10) and reversal valve (9)
Oil inlet P is connected, and the oil return inlet T of the reversal valve (9) is connected with fuel tank (8), two actuator ports A, B of the reversal valve (9)
It is connected respectively by pipeline with two oil inlets A1, B1 of shuttle valve and two oil inlets A2, B2 of hydraulic motor (7).
A kind of 9. fluid motor-driven brakes according to claim 8, it is characterised in that：Described oil pump (11)
It is connected with motor (12), and the oil inlet of the oil pump (11) is connected with fuel tank (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610602738.4A CN106015147B (en) | 2016-07-28 | 2016-07-28 | A kind of shuttle valve with middle position unloading function and fluid motor-driven brakes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610602738.4A CN106015147B (en) | 2016-07-28 | 2016-07-28 | A kind of shuttle valve with middle position unloading function and fluid motor-driven brakes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106015147A CN106015147A (en) | 2016-10-12 |
| CN106015147B true CN106015147B (en) | 2017-12-15 |
Family
ID=57113961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610602738.4A Active CN106015147B (en) | 2016-07-28 | 2016-07-28 | A kind of shuttle valve with middle position unloading function and fluid motor-driven brakes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106015147B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488127B (en) * | 2018-04-29 | 2023-11-14 | 锦州力特液压科技有限公司 | Two-position reversing valve group for actuating mechanism of full-hydraulic tunnel drilling machine |
| CN112065806B (en) * | 2019-06-11 | 2023-05-23 | 常德职业技术学院 | Hydraulic cylinder unloading structure |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB583198A (en) * | 1943-05-22 | 1946-12-11 | Adel Prec Products Corp | Improvement in shuttle valve |
| US3260325A (en) * | 1963-08-19 | 1966-07-12 | Caterpillar Tractor Co | Hydraulic steering system |
| JP2000074232A (en) * | 1998-06-19 | 2000-03-14 | Yazaki Corp | Adjusting valve for gas cylinder manifold |
| JP2004092802A (en) * | 2002-08-30 | 2004-03-25 | Fuji Koki Corp | Three-way valve and refrigerating cycle using this valve |
| WO2004085936A1 (en) * | 2003-03-25 | 2004-10-07 | Daikin Industries, Ltd. | Three-way valve, bridge circuit, and refrigeration apparatus with the bridge circuit |
| JP2005016594A (en) * | 2003-06-24 | 2005-01-20 | Shimadzu Corp | Low pressure search valve |
| CN101092137A (en) * | 2006-06-23 | 2007-12-26 | 卢永松 | Control valve of brake |
| JP2009074664A (en) * | 2007-09-25 | 2009-04-09 | Nachi Fujikoshi Corp | Shuttle valve |
| CN202597294U (en) * | 2012-05-03 | 2012-12-12 | 泸州长江石油工程机械有限公司 | Oil pipe control hydraulic system of radial well operation |
| CN103267148A (en) * | 2013-05-31 | 2013-08-28 | 张立 | Hydraulic excavator moving arm lift |
| CN204099654U (en) * | 2014-09-12 | 2015-01-14 | 南京舒普思达医疗设备有限公司 | A kind of gas ratio valve |
| CN205858825U (en) * | 2016-07-28 | 2017-01-04 | 安徽环球传动科技有限公司 | The shuttle valve of position unloading function and fluid motor-driven brakes in a kind of band |
-
2016
- 2016-07-28 CN CN201610602738.4A patent/CN106015147B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB583198A (en) * | 1943-05-22 | 1946-12-11 | Adel Prec Products Corp | Improvement in shuttle valve |
| US3260325A (en) * | 1963-08-19 | 1966-07-12 | Caterpillar Tractor Co | Hydraulic steering system |
| JP2000074232A (en) * | 1998-06-19 | 2000-03-14 | Yazaki Corp | Adjusting valve for gas cylinder manifold |
| JP2004092802A (en) * | 2002-08-30 | 2004-03-25 | Fuji Koki Corp | Three-way valve and refrigerating cycle using this valve |
| WO2004085936A1 (en) * | 2003-03-25 | 2004-10-07 | Daikin Industries, Ltd. | Three-way valve, bridge circuit, and refrigeration apparatus with the bridge circuit |
| JP2005016594A (en) * | 2003-06-24 | 2005-01-20 | Shimadzu Corp | Low pressure search valve |
| CN101092137A (en) * | 2006-06-23 | 2007-12-26 | 卢永松 | Control valve of brake |
| JP2009074664A (en) * | 2007-09-25 | 2009-04-09 | Nachi Fujikoshi Corp | Shuttle valve |
| CN202597294U (en) * | 2012-05-03 | 2012-12-12 | 泸州长江石油工程机械有限公司 | Oil pipe control hydraulic system of radial well operation |
| CN103267148A (en) * | 2013-05-31 | 2013-08-28 | 张立 | Hydraulic excavator moving arm lift |
| CN204099654U (en) * | 2014-09-12 | 2015-01-14 | 南京舒普思达医疗设备有限公司 | A kind of gas ratio valve |
| CN205858825U (en) * | 2016-07-28 | 2017-01-04 | 安徽环球传动科技有限公司 | The shuttle valve of position unloading function and fluid motor-driven brakes in a kind of band |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106015147A (en) | 2016-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105971954B (en) | A kind of method that fluid motor-driven normal brake application is effectively ensured | |
| CN205858825U (en) | The shuttle valve of position unloading function and fluid motor-driven brakes in a kind of band | |
| CN102874704B (en) | Hydraulic system, hoisting mechanism and engineering machinery | |
| CN201198850Y (en) | Delaying and buffering brake mechanism of hydraulic reversing device | |
| CN106015147B (en) | A kind of shuttle valve with middle position unloading function and fluid motor-driven brakes | |
| CN102979133A (en) | Rotary brake energy recycling device of hydraulic excavator | |
| CN206917957U (en) | Load-sensitive rotary buffering valve and hydraulic system of crane | |
| CN103950850B (en) | Car hosit turn table hydraulic brake system | |
| CN105840564A (en) | Constant-pressure self-locking hydraulic lifting system of tower crane | |
| CN203461743U (en) | Rotary hydraulic system of crane | |
| CN106640826A (en) | Integrated hydraulic valve group as well as hydraulic driving system provided with valve group and concrete pump | |
| CN108104190A (en) | The delay braking control loop of excavator rotary motor | |
| CN101994727A (en) | Balance valve having two-stage pressure buffering protection function | |
| CN201925255U (en) | Balancing valve with secondary pressure buffering protection function | |
| CN105253792B (en) | Rotation control system for crane | |
| CN103754738B (en) | A kind of Dual Drive lifting mechanism | |
| CN203822728U (en) | Material door opening hydraulic system and distributor | |
| CN104176664A (en) | Hydraulic system for preventing forward running of telescopic arm of crane and crane | |
| CN203770276U (en) | Double-way oil supply priority valve | |
| CN203189367U (en) | Bypass throttling speed regulation system and crane | |
| CN103787227B (en) | A kind of Dual Drive lifting mechanism | |
| CN203230677U (en) | Automatic oil supplementing system of closed hydraulic cargo winch | |
| CN107061388B (en) | It is a kind of to prevent descending from shaking and turning to the lifting working platform Ye Qu mechanisms being emptied | |
| CN204140523U (en) | A kind of integrating electro-hydraulic actuator | |
| CN103791143B (en) | Be provided with the valve hydraulic actuator of fault feedback arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A braking system for driving shuttle valve and hydraulic motor with intermediate unloading function Effective date of registration: 20220526 Granted publication date: 20171215 Pledgee: China Co. truction Bank Corp Ma'anshan branch Pledgor: MAANSHAN HUANQIU SLEWING RING CO.,LTD. Registration number: Y2022980006322 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |