CN107882801A - A kind of delay braking control valve for excavator rotary motor - Google Patents
A kind of delay braking control valve for excavator rotary motor Download PDFInfo
- Publication number
- CN107882801A CN107882801A CN201711360463.9A CN201711360463A CN107882801A CN 107882801 A CN107882801 A CN 107882801A CN 201711360463 A CN201711360463 A CN 201711360463A CN 107882801 A CN107882801 A CN 107882801A
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- Prior art keywords
- oil circuit
- vertical
- spring cavity
- horizontal
- oil
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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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2221—Control of flow rate; Load sensing arrangements
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of delay braking control valve for excavator rotary motor, including valve body, check valve, reversing valve core and throttle orifice；There is two-way horizontal oil circuit X1, X2 and three roads vertical oil circuit Y1, Y2, Y3 in valve body；The horizontal horizontally movable vertical oil circuit Y1 through in valve body and vertical oil circuit Y2 of reversing valve core；Reversing valve core one end is contained in spring cavity by spring, and spring cavity fluid is accommodated in spring cavity, and spring cavity is penetrated through vertical oil circuit Y3 and horizontal oil circuit X2, and horizontal oil circuit X2 is penetrated by oil-out C and fuel tank.The delay braking control valve of the present invention, on the premise of brake lag function is realized, valve body oil circuit is less, is easy to processing to safeguard；Outer control oil circuit only is used, without external pressure source, simplifies stringing, convenient maintenance；Built-in throttle orifice specification can carry out convenient adjustment according to actual conditions, caused by delay time mismatches before solving the problems such as brake block sintering, heating.
Description
Technical field
The present invention relates to engineering machinery field, a kind of delay braking control valve for excavator rotary motor.
Background technology
Excavator hydraulic rotary motor start in the course of the work stop it is extremely frequent, hydraulic motor after stopping operating,
To ensure the stationarity of excavator work, on the premise of hydraulic braking, it is still necessary to which parking mechanical braking, i.e. motor rotary cylinder-block are stopped
Car piece and the mutual locking of housing brake block, parking braking function require to release braking rapidly（Revolution action is not influenceed）, and parking
Locking must then have certain delay（Need after motor stops completely）；Motor is needed to be equipped with delay braking control in practical application
Valve processed；The problems such as complicated, oil circuit is more, and delay time is not easy to adjust be present in the delay braking valve currently used for motor.
The content of the invention
To be solved by this invention is to exist complicated currently used for the delay braking valve of motor, and oil circuit is more, delay
Time such as is not easy to adjust at the technical problem.
To solve the above problems, the present invention provides a kind of delay braking control valve for excavator rotary motor.
A kind of delay braking control valve for excavator rotary motor, it is characterized in that, including valve body, check valve, commutation
Valve element and throttle orifice；
There is in valve body 1 first level oil circuit X1, the second horizontal oil circuit X2, the first vertical oil circuit Y1, the second vertical oil circuit Y2, the
Three vertical oil circuit Y3, first vertical oil circuit Y1 one end are oil inlet D, and the first vertical oil circuit Y1 other ends exit is through check valve control
System can penetrate with first level oil circuit X1, and the first level oil circuit X1 other ends penetrate through hydraulic fluid port A and brake cylinder；First level oil
The vertical oil circuit Y2 one end insertions of road X1 and second, the second vertical oil circuit Y2 other ends pass through through throttle orifice and the second horizontal oil circuit X2
It is logical；
Horizontal horizontally movable the first vertical vertical oil circuit Y2 of oil circuit Y1 and second through in valve body of reversing valve core；Reversal valve
Core one end is contained in spring cavity by spring, spring cavity fluid is accommodated in spring cavity, spring cavity is through the 3rd vertical oil circuit Y3
Penetrated with the second horizontal oil circuit X2, the second horizontal oil circuit X2 is penetrated by oil-out C and fuel tank.
There is a boss on reversing valve core, when reversing valve core moves horizontally to one end compression spring of spring cavity, boss
It is moved to the second vertical oil circuit Y2 closure in the second vertical oil circuit Y2.
During the second vertical oil circuit Y2 closure, spring cavity fluid is by the 3rd vertical oil circuit Y3, the second horizontal oil circuit X2 through going out
Hydraulic fluid port C is let out into fuel tank.
There is a boss, when boss, which is moved horizontally to avoidance, opens the second vertical oil circuit Y2, second is vertical on reversing valve core
Oil circuit Y2 is penetrated, and is formed and penetrated through throttle orifice and the second horizontal oil circuit X2, and the second horizontal oil circuit X2 is communicated to oil through oil-out C
Case.
After brake cylinder feed pressure oil, drive motor releases braking.
Before excavator rotary motor work, motor starting identification signal pressure oil passes through the first vertical oil circuit by oil inlet D
Y1 enters in valve body, and promoting reversing valve core, horizontally toward spring cavity moves, and makes boss on reversing valve core by the second vertical oil circuit
Y2 is blocked；Pressure oil is pushed check valve open and entered in first level oil circuit X1 simultaneously, enters brake cylinder through hydraulic fluid port A, by brake oil
Cylinder makes motor release braking.
For reversing valve core when horizontally toward spring cavity moves, the spring cavity fluid in spring cavity is squeezed through the 3rd vertical oil
Road Y3, the second horizontal oil circuit X2 are let out into fuel tank through oil-out C.
When excavator rotary motor is stopped, motor starting identification signal pressure oil decompression, reversing valve core moves horizontally
Penetrate the second vertical oil circuit Y2, closed check valve, hydraulic oil passes through first level oil circuit X1, the second vertical oil in brake cylinder
Road Y2, throttle orifice, the second horizontal oil circuit X2 return to fuel tank through oil-out C.
Compared with prior art, the present invention has following beneficial effect：
1st, delay braking control valve of the invention, on the premise of brake lag function is realized, valve body oil circuit is less, is easy to process
Safeguard；
2nd, delay braking control valve of the invention, on the premise of brake lag function is realized, outer control oil circuit only is used, without
External pressure source, simplify stringing, convenient maintenance；
3rd, delay braking control valve of the invention, on the premise of brake lag function is realized, built-in throttle orifice specification can basis
Actual conditions carry out convenient adjustment, caused by delay time mismatches before solving the problems such as brake block sintering, heating.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of delay braking control valve of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the present invention is further detailed and described.
As shown in figure 1, a kind of delay braking control valve for excavator rotary motor of the present invention, including parts
Have：Valve body 1, check valve 2, plug 3, reversing valve core 4, throttle orifice 5, screw plug 6 and O-ring 7 and 8；There is X1, X2 two simultaneously
The horizontal oil circuit of bar, the vertical oil circuits of Y1, Y2, Y3 tri- and tetra- hydraulic fluid ports of A, B, C, D.Be provided with valve body 1 three vertical oil circuit Y1,
Y2, Y3 and two horizontal oil circuit X1, X2, vertical oil circuit Y1 entrance is hydraulic fluid port D, and exit can be with level through the control of check valve 2
Oil circuit X1 is penetrated, and the horizontal oil circuit X1 other ends are penetrated through hydraulic fluid port A and brake cylinder 9, after the feed pressure oil of brake cylinder 9, can driven
Dynamic motor releases braking.Have one to cross the horizontally movable reversing valve core 4 of vertical oil circuit Y1, Y2, reversing valve core 4 in valve body 1
One end is contained in spring cavity by spring 10, spring cavity fluid is accommodated in spring cavity, spring cavity is through vertical oil circuit Y3 and water
Flat oil circuit X2 insertions, horizontal oil circuit X2 are penetrated by hydraulic fluid port C and fuel tank.There is a boss, when reversing valve core 4 on reversing valve core 4
When being moved to one end compression spring 10 of spring cavity, boss, which is moved in vertical oil circuit Y2, to block vertical oil circuit Y2, meanwhile,
Spring cavity fluid is let out into fuel tank by vertical oil circuit Y3, horizontal oil circuit X2 through hydraulic fluid port C.Vertical oil is opened when boss is moved to avoidance
During the Y2 of road, vertical oil circuit Y2 penetrates through throttle orifice 5 and horizontal oil circuit X2, and horizontal oil circuit X2 is communicated to fuel tank through hydraulic fluid port C.Horizontal oil
Plug 3 and screw plug 6 are set on the X2 of road.
O-ring 7 is set at hydraulic fluid port C.Spring cavity is located at setting O-ring 8, hydraulic fluid port B only conducts at one end hydraulic fluid port B of valve body 1
Machining and the fabrication hole of assembling, the spring base as reversing valve core 4 is blocked during real work.
Accompanying drawing 1 is refer to, before excavator rotary motor work, motor starting identification signal pressure oil is passed through perpendicular by hydraulic fluid port D
Straight oil circuit Y1 enters in valve, promotes the right boss of reversing valve core 4 to overcome spring force commutation to block vertical oil circuit Y2, so as to ensure
Pressure oil does not release from vertical oil circuit Y2, and the left side spring cavity fluid of reversing valve core 4 passes through vertical oil in the case where hydraulic fluid port B is blocked
Road Y3, horizontal oil circuit X2 are let out to fuel tank through hydraulic fluid port C, and pressure oil is pushed check valve 2 open and entered in horizontal oil circuit X1 simultaneously, by hydraulic fluid port A
Connected with brake cylinder 9, motor is released braking rapidly.
Excavator rotary motor is stopped moment, and motor starting identification signal pressure oil decompression, reversing valve core 4 is in left side
Rapid reset penetrates vertical oil circuit Y2 under spring effect, while check valve 2 is closed rapidly, because brake cylinder 9 is single-acting oil
Cylinder, hydraulic oil can only pass through horizontal oil circuit X1, vertical oil circuit Y2, reversing valve core under the effect of its contained spring in brake cylinder 9
4th, throttle orifice 5, horizontal oil circuit X2 return to fuel tank through hydraulic fluid port C, and when hydraulic oil flows completely out in brake cylinder 9, parking braking is
It can act, because hydraulic oil is by the throttling action during throttle orifice 5, therefore throttle orifice can be converted according to actual conditions
5 specification realizes the delivery time of hydraulic oil in adjustment brake cylinder 9, so as to realize delay braking control.Wherein hydraulic fluid port B only makees
The spring base as reversing valve core 4 is blocked for the fabrication hole for machining and assembling, during real work.
To sum up structure of the invention is understood, delay braking control valve of the invention, is realizing the premise of brake lag function
Under, valve body oil circuit is less, is easy to processing to safeguard；Outer control oil circuit only is used, without external pressure source, simplifies stringing, it is convenient
Maintenance；Built-in choke valve specification can carry out convenient adjustment according to actual conditions, caused by delay time mismatches before solving
The problems such as brake block sintering, heating.
Claims (8)
1. a kind of delay braking control valve for excavator rotary motor, it is characterized in that, including valve body, check valve, reversal valve
Core and throttle orifice；
There is in valve body 1 first level oil circuit X1, the second horizontal oil circuit X2, the first vertical oil circuit Y1, the second vertical oil circuit Y2, the
Three vertical oil circuit Y3, first vertical oil circuit Y1 one end are oil inlet D, and the first vertical oil circuit Y1 other ends exit is through check valve control
System can penetrate with first level oil circuit X1, and the first level oil circuit X1 other ends penetrate through hydraulic fluid port A and brake cylinder；First level oil
The vertical oil circuit Y2 one end insertions of road X1 and second, the second vertical oil circuit Y2 other ends pass through through throttle orifice and the second horizontal oil circuit X2
It is logical；
Horizontal horizontally movable the first vertical vertical oil circuit Y2 of oil circuit Y1 and second through in valve body of reversing valve core；Reversal valve
Core one end is contained in spring cavity by spring, spring cavity fluid is accommodated in spring cavity, spring cavity is through the 3rd vertical oil circuit Y3
Penetrated with the second horizontal oil circuit X2, the second horizontal oil circuit X2 is penetrated by oil-out C and fuel tank.
2. a kind of delay braking control valve for excavator rotary motor according to claim 1, it is characterized in that, commutation
There is a boss, when reversing valve core moves horizontally to one end compression spring of spring cavity, it is perpendicular that boss is moved to second on valve element
The second vertical oil circuit Y2 is blocked in straight oil circuit Y2.
3. a kind of delay braking control valve for excavator rotary motor according to claim 2, it is characterized in that, second
During vertical oil circuit Y2 closure, spring cavity fluid is let out to fuel tank by the 3rd vertical oil circuit Y3, the second horizontal oil circuit X2 through oil-out C
In.
4. a kind of delay braking control valve for excavator rotary motor according to claim 1, it is characterized in that, commutation
There is a boss on valve element, when boss, which is moved horizontally to avoidance, opens the second vertical oil circuit Y2, the second vertical oil circuit Y2 insertions, and
Formed and penetrated through throttle orifice and the second horizontal oil circuit X2, the second horizontal oil circuit X2 is communicated to fuel tank through oil-out C.
5. a kind of delay braking control valve for excavator rotary motor according to claim 1, it is characterized in that, braking
After oil cylinder feed pressure oil, drive motor releases braking.
6. a kind of delay braking control valve for excavator rotary motor according to claim 1, it is characterized in that, excavate
Before the work of machine rotary motor, motor starting identification signal pressure oil is entered in valve body by oil inlet D by the first vertical oil circuit Y1,
Promoting reversing valve core, horizontally toward spring cavity moves, and the boss on reversing valve core is blocked the second vertical oil circuit Y2；Pressure oil
Push check valve open simultaneously to enter in first level oil circuit X1, enter brake cylinder through hydraulic fluid port A, motor is released system by brake cylinder
It is dynamic.
7. a kind of delay braking control valve for excavator rotary motor according to claim 6, it is characterized in that, commutation
For valve element when horizontally toward spring cavity moves, the spring cavity fluid in spring cavity is squeezed through the 3rd vertical oil circuit Y3, the second water
Flat oil circuit X2 is let out into fuel tank through oil-out C.
8. a kind of delay braking control valve for excavator rotary motor according to claim 1, it is characterized in that,
When excavator rotary motor is stopped, motor starting identification signal pressure oil decompression, reversing valve core, which moves horizontally, makes
Two vertical oil circuit Y2 are penetrated, closed check valve, and hydraulic oil passes through first level oil circuit X1, the second vertical oil circuit in brake cylinder
Y2, throttle orifice, the second horizontal oil circuit X2 return to fuel tank through oil-out C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711360463.9A CN107882801B (en) | 2017-12-18 | 2017-12-18 | Delay brake control valve for excavator rotary motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711360463.9A CN107882801B (en) | 2017-12-18 | 2017-12-18 | Delay brake control valve for excavator rotary motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107882801A true CN107882801A (en) | 2018-04-06 |
| CN107882801B CN107882801B (en) | 2023-06-23 |
Family
ID=61771721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711360463.9A Active CN107882801B (en) | 2017-12-18 | 2017-12-18 | Delay brake control valve for excavator rotary motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107882801B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899332A (en) * | 2019-04-12 | 2019-06-18 | 江苏汇智高端工程机械创新中心有限公司 | Walking motor time-delay brake valve and walking motor |
| CN111530700A (en) * | 2020-05-08 | 2020-08-14 | 济南悉通液压设备配套有限公司 | Glue leakage prevention hydraulic system for butyl rubber coating machine and integrated valve block thereof |
| CN113898677A (en) * | 2021-10-15 | 2022-01-07 | 合肥协力液压科技有限公司 | Delay control valve group for tractor PTO clutch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01255702A (en) * | 1988-04-01 | 1989-10-12 | Hitachi Constr Mach Co Ltd | Brake circuit for hydraulic motor |
| JPH09229021A (en) * | 1996-02-23 | 1997-09-02 | Sumitomo Eaton Kiki Kk | Timer valve of mechanical brake device for hydraulic motor |
| JP2002349508A (en) * | 2001-05-31 | 2002-12-04 | Hitachi Constr Mach Co Ltd | Brake device of hydraulic motor |
| CN203413174U (en) * | 2013-08-12 | 2014-01-29 | 龙工（上海）精工液压有限公司 | Delayed brake valve for rotary motor of excavator |
| CN207848076U (en) * | 2017-12-18 | 2018-09-11 | 徐州徐工挖掘机械有限公司 | A kind of delay braking control valve for excavator rotary motor |
-
2017
- 2017-12-18 CN CN201711360463.9A patent/CN107882801B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01255702A (en) * | 1988-04-01 | 1989-10-12 | Hitachi Constr Mach Co Ltd | Brake circuit for hydraulic motor |
| JPH09229021A (en) * | 1996-02-23 | 1997-09-02 | Sumitomo Eaton Kiki Kk | Timer valve of mechanical brake device for hydraulic motor |
| JP2002349508A (en) * | 2001-05-31 | 2002-12-04 | Hitachi Constr Mach Co Ltd | Brake device of hydraulic motor |
| CN203413174U (en) * | 2013-08-12 | 2014-01-29 | 龙工（上海）精工液压有限公司 | Delayed brake valve for rotary motor of excavator |
| CN207848076U (en) * | 2017-12-18 | 2018-09-11 | 徐州徐工挖掘机械有限公司 | A kind of delay braking control valve for excavator rotary motor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899332A (en) * | 2019-04-12 | 2019-06-18 | 江苏汇智高端工程机械创新中心有限公司 | Walking motor time-delay brake valve and walking motor |
| CN109899332B (en) * | 2019-04-12 | 2020-05-08 | 江苏汇智高端工程机械创新中心有限公司 | Walking motor time-delay brake valve and walking motor |
| CN111530700A (en) * | 2020-05-08 | 2020-08-14 | 济南悉通液压设备配套有限公司 | Glue leakage prevention hydraulic system for butyl rubber coating machine and integrated valve block thereof |
| CN111530700B (en) * | 2020-05-08 | 2021-03-19 | 济南悉通液压设备配套有限公司 | Glue leakage prevention hydraulic system for butyl rubber coating machine and integrated valve block thereof |
| CN113898677A (en) * | 2021-10-15 | 2022-01-07 | 合肥协力液压科技有限公司 | Delay control valve group for tractor PTO clutch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107882801B (en) | 2023-06-23 |
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