CN208474224U - A kind of hydraulic switch valve - Google Patents
A kind of hydraulic switch valve Download PDFInfo
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- CN208474224U CN208474224U CN201821112630.8U CN201821112630U CN208474224U CN 208474224 U CN208474224 U CN 208474224U CN 201821112630 U CN201821112630 U CN 201821112630U CN 208474224 U CN208474224 U CN 208474224U
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- main valve
- piston
- valve
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- seat
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Abstract
The utility model belongs to a kind of hydraulic switch valve.Hydraulic switch valve includes main valve and the piston spring seat that main valve side is arranged in, the main valve includes main valve body, lateral main oil gallery is equipped in main valve body, it be furnished with time valve and radiator connector A in main valve body upper end, main valve body lower part is equipped with the motor interface channel being connected to main oil gallery, motor connector is provided on main valve body sidewall corresponding with motor interface channel, main valve piston is equipped in main oil gallery, main valve piston one end is contacted with main valve body sidewall, the main valve piston other end is contacted with main valve piston spring, main valve piston spring is arranged in piston spring seat, the main valve piston spring other end is connected with piston spring seat, variable pump connector is provided on the subsequent main valve body in main valve piston one end being connected with main valve body sidewall.The application switching valve cools down to the hydraulic oil of hydraulic system, solves the problems, such as high oil temperature.
Description
Technical field
The utility model belongs to hydraulic component field, specifically a kind of to apply on engineering truck or combine harvester
Hydraulic switch valve.
Background technique
With the development of hydraulic-driven technology, component of the hydraulic-driven in each field is increasingly heavier.Wherein led in agricultural machinery
Domain, it is especially large-scale from the application walked in class agricultural machinery and more and more.Its advantage is that small in size, light-weight, compact-sized.Example
Such as, the weight of the hydraulic motor of Same Efficieney only has 1/6th of motor or so, each portion's Hydraulic Elements can as needed into
Row flexible arrangement.In addition, hydraulic device functioning equalization, reaction is fast, and failure rate is small, easy to operate, can electrodeless adjustment on a large scale
Deng.
Currently, large hydraulic both domestic and external drives walking machine, such as combine harvester and the hydraulic system of engineering machinery,
All hydraulic oil needed for the hydraulic moving to vehicle is not cooled down reasonably, leads to Prevention of Hydraulic System Overheating.It is understood that one
The working efficiency of a hydraulic system can not exist absolutely, always to have certain power loss, and hydraulic system is consumed
Power in be not carried out available power part be referred to as power loss, these loss power require to consume by generating heat
Fall, referred to as heating power.It is inevitable so hydraulic system can generate heat when working.In order to keep hydraulic system suitable at some
At a temperature of work, the heat-sinking capability of hydraulic system must be greater than heating power, typically pass through radiator hydraulic oil container
The components such as metallic conduit, but whatsoever form, heat-sinking capability are centainly greater than normal heating power, to guarantee system in work
Reach thermodynamic equilibrium at a temperature of work, be unlikely to overheat, otherwise system operating power resulted in decline, accelerates seal member old
Change, reduce the viscosity of hydraulic oil, the abrasion of increasing pump must stop working cooling like the automobile for being a boiling of the radiator.Currently,
Large hydraulic running gear both domestic and external, use it is mostly be the pump housing, cooled down with pumping intracorporal hydraulic oil residual current, so largely
Running gear hydraulic oil do not cooled.
Summary of the invention
The purpose of this utility model is to provide for a kind of hydraulic switch valve, which can be to the hydraulic oil of hydraulic system
Cool down.
The technical solution of the utility model is:
Hydraulic switch valve includes main valve and the piston spring seat that main valve side is arranged in, and the main valve includes main valve body, main
It is equipped with lateral main oil gallery in valve body, is furnished with time valve and radiator connector A in main valve body upper end, main valve body lower part is equipped with and master
The motor interface channel of oil duct connection, is provided with motor connector on main valve body sidewall corresponding with motor interface channel, in master
Main valve piston is equipped in oil duct, main valve piston one end is contacted with main valve body sidewall, the main valve piston other end and main valve piston spring
Contact, main valve piston spring be arranged in piston spring seat, the main valve piston spring other end is connected with piston spring seat, with master
Variable pump connector is provided on the connected subsequent main valve body in main valve piston one end of body wall.
The beneficial effects of the utility model are:
The application switching valve cools down to the hydraulic oil of hydraulic system, solves the problems, such as high oil temperature.
Detailed description of the invention
Fig. 1 is the application switching valve overall structure diagram.
Fig. 2 is the schematic diagram of the section structure of the application switching valve.
Fig. 3 is the application main valve cross-section structure enlarged drawing.
Fig. 4 is main valve piston structural schematic diagram.
Fig. 5 is the application time valve portion face schematic enlarged-scale view.
Fig. 6 is time valve piston structural schematic diagram.
Fig. 7 is piston seat structural schematic diagram.
Fig. 8 is the application switching valve use state with reference to figure.
Specific embodiment
In order to solve drawbacks described above, inventor's innovation and creation hydraulic switch valve of the application.
The application is described in detail with reference to the accompanying drawing:
Hydraulic switch valve includes main valve 1 and the piston spring seat 2 that 1 side of main valve is arranged in, and piston spring seat and main valve 1 can
It is threadedly coupled with selection, the main valve 1 includes main valve body 3, lateral main oil gallery 4 is equipped in main valve body 3, on main valve body 3
Equipped with the secondary valve 30 being connected to main oil gallery 4 and the radiator connector A5 being connected to main oil gallery 4, secondary valve 30 can with main valve body 3 at end
Be threadedly coupled with selection, 3 lower part of main valve body is equipped with the motor interface channel 6 that is connected to main oil gallery, with motor interface channel 6
It is provided with motor connector 7 on corresponding main valve body sidewall, main valve piston 8,8 one end of main valve piston and main valve are equipped in main oil gallery
9 end thereof contacts of piston spring, 8 other end of main valve piston are contacted with main valve body sidewall, and main valve piston spring is arranged in piston spring
In seat, the main valve piston spring other end is connected with piston spring seat, far from the main valve of main valve piston spring one end on main valve body 3
It is equipped with variable pump connector 10 behind piston, opens that there are four be used to this valve being fixed on variable pump in 11 connector surrounding of variable pump
On connecting hole 12.
The secondary valve 4 includes time valve body 13, the radiator interface channel 14 equipped with longitudinal direction in secondary valve body 13, in secondary valve body
Radiator interface channel lower end be connected to the intracorporal main oil gallery of main valve, heat dissipation valve intracorporal radiator interface channel upper end be equipped with
Radiator connector B15 is equipped with time valve piston group 16 in radiator interface channel.
The secondary valve piston group 16 includes time valve piston 17, secondary valve piston spring 19 and piston seat 18, the piston seat 18
Including hollow cylindrical body 20, multiple longitudinally disposed guide plates 21, secondary valve piston top are equipped in hollow 20 periphery of cylindrical body
It is divided into cone shape 23, lower part is divided into cylindrical shape 24, the hollow cylinder of the circular cylinder shaped portion insertion piston seat of secondary valve piston
Interior, equipped with time valve spring on the outside of the cylindrical portion of secondary valve piston, the lower part of the cylindrical portion of secondary valve piston is equipped with jump-ring slot
25, circlip is housed between jump-ring slot and piston seat.
The main valve piston 8 from left to right successively includes the first cylindrical body 26, the second cylindrical body 17,28 and of third cylindrical body
Spring contacts seat 29, and the first cylindrical body is contacted with main valve body sidewall, and spring contact seat is contacted with main valve piston spring, the second cylinder
The diameter of body is identical as main oil gallery internal diameter, and the diameter of the first cylindrical body and third cylindrical body is less than the second cylinder diameter.
Engineering truck and large, medium and small combine harvester vehicle of the application switching valve for hydraulic moving.It is with pump type
PVS90 and HA4TVTG serial model No. variable pump.
The course of work:
The A mouth oil outlet of variable pump and the variable pump connector of this switching valve dock, and in work, the main valve of this switching valve is living
Plug movement realizes that the fuel-displaced arrival motor of the motor connector of this switching valve completes work.
The motor connector that this switching valve is reached after the fuel-displaced oil return by motor of B mouth oil outlet of variable pump, by this conversion
Valve radiator connector A enters after radiator heat-dissipation the radiator connector B for reaching this switching valve, by main oil gallery and variable pump
Connector returns to A mouthfuls of completion work of variable pump.
Using a kind of device of the flow pressure automatic conversion hydraulic oil without high pressure conditions of pump, i.e., the application switching valve is
" high pressure switching valve ", high pressure switching valve are converted by the pressure of hydraulic oil in valve inner, the work of system solved in high temperature
Make under environment, the balance of Hydraulic System Fever power and heat radiation power, be unlikely to that superheating phenomenon occurs, meets cooling work item
Part, the maximum working efficiency that ensure that hydraulic system.Solve original Hydraulically Operated Equipment high temperature and contaminant filter it is two big
Problem.
It should be noted that the orientation such as the upper and lower, left and right occurred in the application, inside and outside word, is in order to clearer
Illustrate the structure of the switching valve of the application, cannot understand as protection scope.
Claims (4)
1. a kind of hydraulic switch valve, it is characterised in that: the switching valve includes main valve and the piston spring that main valve side is arranged in
Seat, the main valve include main valve body, are equipped with lateral main oil gallery in main valve body, are furnished with time valve in main valve body upper end and radiator connects
Interface A, main valve body lower part is equipped with the motor interface channel being connected to main oil gallery, on main valve corresponding with motor interface channel side
It is provided with motor connector on wall, main valve piston is equipped in main oil gallery, main valve piston one end is contacted with main valve body sidewall, and main valve is living
The plug other end is contacted with main valve piston spring, and main valve piston spring is arranged in piston spring seat, the main valve piston spring other end
It is connected with piston spring seat, is provided with variable pump on the subsequent main valve body in main valve piston one end being connected with main valve body sidewall and connect
Mouthful.
2. a kind of hydraulic switch valve according to claim 1, it is characterised in that: the secondary valve includes time valve body, secondary valve body
Interior to be equipped with longitudinal radiator interface channel, secondary valve intracorporal radiator interface channel lower end and the intracorporal main oil gallery of main valve connect
Logical, heat dissipation valve intracorporal radiator interface channel upper end is equipped with radiator connector B, and time valve is equipped in radiator interface channel
Piston group.
3. a kind of hydraulic switch valve according to claim 2, it is characterised in that: the secondary valve piston group includes that time valve is living
Plug, secondary valve piston spring and piston seat, the piston seat include hollow cylindrical body, are equipped in hollow cylindrical body periphery multiple
Longitudinally disposed guide plate, secondary valve piston top are divided into cone shape, and lower part is divided into cylindrical shape, the cylindrical portion of secondary valve piston
It is inserted into piston seat, equipped with time valve spring, the lower part of the cylindrical portion of secondary valve piston on the outside of the cylindrical portion of secondary valve piston
Equipped with jump-ring slot, circlip is housed between jump-ring slot and piston seat.
4. a kind of hydraulic switch valve according to claim 1, it is characterised in that: the main valve piston from left to right successively wraps
It includes the first cylindrical body, the second cylindrical body, third cylindrical body and spring contact seat, the first cylindrical body to contact with main valve body sidewall, bullet
Spring contact seat is contacted with main valve piston spring, and the diameter of the second cylindrical body is identical as main oil gallery internal diameter, the first cylindrical body and third
The diameter of cylindrical body is less than the second cylinder diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821112630.8U CN208474224U (en) | 2018-07-13 | 2018-07-13 | A kind of hydraulic switch valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821112630.8U CN208474224U (en) | 2018-07-13 | 2018-07-13 | A kind of hydraulic switch valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208474224U true CN208474224U (en) | 2019-02-05 |
Family
ID=65210720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821112630.8U Active CN208474224U (en) | 2018-07-13 | 2018-07-13 | A kind of hydraulic switch valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208474224U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612699A (en) * | 2018-07-13 | 2018-10-02 | 朱贺金 | A kind of hydraulic switch valve |
| CN110107554A (en) * | 2019-05-07 | 2019-08-09 | 中航飞机起落架有限责任公司 | A kind of switching valve and undercarriage turn control system |
-
2018
- 2018-07-13 CN CN201821112630.8U patent/CN208474224U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612699A (en) * | 2018-07-13 | 2018-10-02 | 朱贺金 | A kind of hydraulic switch valve |
| CN110107554A (en) * | 2019-05-07 | 2019-08-09 | 中航飞机起落架有限责任公司 | A kind of switching valve and undercarriage turn control system |
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