CN207830251U - A kind of multifunctional assembled hydraulic control valve - Google Patents
A kind of multifunctional assembled hydraulic control valve Download PDFInfo
- Publication number
- CN207830251U CN207830251U CN201721700124.6U CN201721700124U CN207830251U CN 207830251 U CN207830251 U CN 207830251U CN 201721700124 U CN201721700124 U CN 201721700124U CN 207830251 U CN207830251 U CN 207830251U
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- valve
- spring
- control valve
- hydraulic control
- multifunctional assembled
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Abstract
The utility model discloses a kind of multifunctional assembled hydraulic control valves, including a piece of lifter control valve（1）And two panels hydraulic pressure delivery valve（2）, the hydraulic control valve described in two panels（2）Parallel connection, then with the lifter control valve（1）Series connection, the lifter control valve（1）It is connected with horizontally disposed lowering valve（3）And check valve（4）, the lowering valve（3）With check valve（4）Parallel connection, the lifter control valve（1）It is also associated with safety valve（5）, the safety valve（5）Side is equipped with oil inlet（6）.Compared with prior art, the multifunctional assembled hydraulic control valve of the utility model, the fuel feeding by the way of connection in series-parallel combination, is not limited by a space, and fuel delivery is sufficient, and promotion speed is fast, will not card valve.
Description
Technical field
The utility model belongs to hydraulic system technical field, more particularly to a kind of multifunctional assembled hydraulic control valve.
Background technology
The effect of hydraulic pressure elevator of tractor is connection and traction farm implements, manipulates the lifting of farm implements, controls the farming of farm implements
Depth increases weight to tractor driving wheel, to improve the adhesion property of tractor, hydraulic energy is output on Work machine and carries out it
It is operated.Pressure distributor is the core component of hydraulic control system, and effect is responsible for control lifter and completes above-mentioned function,
Its performance has entire tractor hydraulic suspension arrangement performance directly great influence.
In recent years, tractor manufacture, development progress are accelerated, and Development Trend is inclined to high-power, high-performance.Traditional hydraulic separate
Orchestration has the following disadvantages：It is relatively simple for structure, the failures such as poorly sealed, card valve are be easy to cause, the accuracy of manufacture requires tighter, dimension
Repair it is of high cost, with the promotion of dilatory acc power, be easy to cause promotion for shortage of oil, promote the failures such as speed is slow.Traditional liquid
The technical performance of pressure distributor has been difficult to adapt to current development trend.
Big-powered tractor is equipped with a few road hydraulic control valves, is limited by space, and the installation site of delivery valve is not fixed enough,
Piping connection is long, and performance and stability are not high.
Utility model content
This purpose is to provide in view of the deficiencies of the prior art, provides a kind of multifunctional assembled hydraulic control valve, solves
Existing hydraulic control valve, it is relatively simple for structure, be easy to cause the failures such as poorly sealed, card valve, the accuracy of manufacture require it is tighter,
Maintenance cost is high, with the promotion of dilatory acc power, be easy to cause promotion for shortage of oil, promote the failures such as speed is slow, by space
The problem of installation site of limitation, delivery valve is not fixed enough, and piping connection is long, and performance and stability are not high, and winter is easy to freeze,
The combined type hydraulic control valve is compact-sized, good airproof performance, performance are stable, reliability is high, flow efficiency is high, antifreeze, just
In repair, it can realize the multifunctional assembled hydraulic control valve of requirement, the fuel feeding by the way of connection in series-parallel combination, not by sky
Between limit, fuel delivery is sufficient, and it is fast to promote speed, will not card valve.
In order to achieve the above object, there is provided a kind of multifunctional assembled hydraulic pressure for the technical solution adopted in the utility model
Control valve, including a piece of lifter control valve and two panels hydraulic control valve, the hydraulic control valve described in two panels is in parallel, then with
The lifter control valve series connection, the lifter control valve are connected with horizontally disposed lowering valve and check valve, the decline
Valve is in parallel with check valve, and the lifter control valve is also associated with safety valve, and the safety valve side is equipped with oil inlet.
As a kind of improvement of this programme, the lifter control valve includes Scotch yoke, is connected above the Scotch yoke
It is connected to hand lever, side is connected with the lowering valve.
Another kind as this programme improves, and the Scotch yoke includes guiding valve and guide rod, between the guiding valve and guide rod
It is additionally provided with telescoping mechanism.
As being further improved for this programme, the telescoping mechanism includes the first steel ball and liter being mounted in the guiding valve
Pressure valve, described back-up valve one end are contacted with the cooperation of the first steel ball, and the other end is connected with the first spring base, and first spring base is logical
It crosses locating piece to connect with guiding valve, first spring base is connected with the first spring, one end and the first spring of first spring
Seat connection, the other end are connected with second spring seat, and the second spring seat is connect by locked spacer with the guide rod, the cunning
Valve outer ring is equipped with positioning sleeve, and the positioning sleeve both sides are respectively equipped with a pair of of third spring base and a pair of 4th spring base, and described the
It is respectively equipped with third spring and the 4th spring between three spring bases and the 4th spring base.
As the further improvement of this programme, pressure regulation screw plug is equipped in the guide rod.
As the further improvement of this programme, the two panels hydraulic control valve is connected by three-position valve body assembly, described
Three-position valve body assembly includes shell and three-position valve bar, and the shell is equipped with baffle, and the three-position valve bar passes through the shell and gear
Plate is simultaneously fixed by baffle, and the three-position valve boom end is equipped with a pair of 5th spring base, and described two 5th spring bases pass through cunning
Valve screw is fixed to the end of the three-position valve bar, and the 5th spring is equipped between the 5th spring base, and outside is equipped with spring cup；
Be equipped with the 6th spring base above the shell, be equipped with the 6th spring below the 6th spring base, the 6th spring with it is unidirectional
Valve body connects.
As the further improvement of this programme, the lowering valve includes lowering valve plug screw and decline valve seat, the decline
It is equipped in valve plug screw and declines valve spring, the decline valve spring is connected with the second steel ball, second steel ball and the lowering valve
Seat is connected, and push rod is equipped in the decline valve seat, and the push rod is connect with second steel ball.
As the further improvement of this programme, the check valve includes check valve plug screw and one-way valve seat, described unidirectional
One-way valve spring is equipped in valve plug screw, the one-way valve spring is connected with third steel ball, the third steel ball and the check valve
Seat is connected.
As the further improvement of this programme, the safety valve includes nut, swivel nut and safe valve pocket, is sequentially connected,
It is equipped with seal washer between the nut and swivel nut, the 4th steel ball, the 7th spring base and the 7th spring are equipped in the swivel nut,
Be equipped with safe spool in the safe valve pocket, the 7th spring one end stretch into swivel nut successively with the 7th spring base, the 4th steel ball
Connection, the other end are stretched into safe valve pocket and are connect with safe spool.
As the further improvement of this programme, each valve body junction is equipped with O-ring seals.
Compared with prior art, the multifunctional assembled hydraulic control valve of the utility model, the side combined using connection in series-parallel
Formula fuel feeding, is not limited by a space, and fuel delivery is sufficient, and promotion speed is fast, will not card valve.
Description of the drawings
Fig. 1 is the structural schematic diagram of the multifunctional assembled hydraulic control valve of the utility model.
Fig. 2 is the assembling schematic diagram of the multifunctional assembled hydraulic control valve of the utility model.
Fig. 3 is the sectional view of the lifter control valve of the utility model.
Fig. 4 be the utility model lifter control valve in Scotch yoke structural schematic diagram.
Fig. 5 is the three-position valve body assembly structure schematic diagram of the multifunctional assembled hydraulic control valve of the utility model.
Fig. 6 is the structural schematic diagram of the lowering valve of the multifunctional assembled hydraulic control valve of the utility model.
Fig. 7 is the structural schematic diagram of the check valve of the multifunctional assembled hydraulic control valve of the utility model.
Fig. 8 is the structural schematic diagram of the safety valve of the multifunctional assembled hydraulic control valve of the utility model.
Fig. 9 is the assembling schematic diagram of lowering valve and check valve in the utility model.
Specific implementation mode
Specific embodiment of the present utility model is done below by the form in conjunction with attached drawing further detailed
Illustrate, but what following embodiment only enumerated is more preferably embodiment, only plays the role of explanation to help to understand this
Utility model can not be not understood as the restriction to the utility model.
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.
The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to for explaining the utility model, and cannot
It is construed as a limitation of the present invention.
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
Describe the utility model and simplify to describe, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, unless otherwise indicated, the meaning of " multiple "
It is two or more, unless otherwise restricted clearly.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features are in direct contact, and can also not be to be in direct contact but lead to including the first and second features
Cross the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the
One feature is right over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special
Sign second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or only
Indicate that fisrt feature level height is less than second feature.
Embodiment one：Such as Fig. 1, shown in 2,9, a kind of multifunctional assembled hydraulic control valve, including a piece of lifter control
Valve 1 and two panels hydraulic control valve 2, the hydraulic control valve 2 described in two panels is in parallel, then connects with the lifter control valve 1,
The lifter control valve 1 is connected with horizontally disposed lowering valve 3 and check valve 4, and the lowering valve 3 is in parallel with check valve 4, institute
It states lifter control valve 1 and is also associated with safety valve 5,5 side of the safety valve is equipped with oil inlet 6.
Shown in Fig. 3, the lifter control valve 1 includes Scotch yoke 7, and 7 top of the Scotch yoke is connected with hand lever 8,
Side is connect with the lowering valve 3.
Shown in Fig. 3, the Scotch yoke 7 includes guiding valve 9 and guide rod 10, is additionally provided with and stretches between the guiding valve 9 and guide rod 10
Contracting mechanism.
Shown in Fig. 4, the telescoping mechanism include be mounted on the guiding valve 9 in the first steel ball 11 and back-up valve 12, it is described
12 one end of back-up valve is contacted with first steel ball 11 cooperation, and the other end is connected with the first spring base 13, first spring base
13 are connect by locating piece 111 with guiding valve 9, and first spring base 13 is connected with the first spring 14, first spring 14
One end is connect with the first spring base 13, and the other end is connected with second spring seat 15, and the second spring seat 15 passes through locked spacer
16 connect with the guide rod 10, and 9 outer ring of the guiding valve is equipped with positioning sleeve 17, and 17 both sides of the positioning sleeve are respectively equipped with a pair of of third
Spring base 18 and a pair of 4th spring base 19 are respectively equipped with third spring between 18 and the 4th spring base 19 of the third spring base
20 and the 4th spring 21.
Shown in Fig. 4, pressure regulation screw plug 22 is equipped in the guide rod 10.
Shown in Fig. 5, the two panels hydraulic control valve 2 is connected by three-position valve body assembly, and the three-position valve body assembly includes
Shell 23 and three-position valve bar 24, the shell 23 are equipped with baffle 25, and the three-position valve bar 24 passes through the shell 23 and baffle 25
And fixed by baffle 25,24 end of three-position valve bar is equipped with a pair of 5th spring base 26, described two 5th spring bases 26
It is fixed to the end of the three-position valve bar 24 by guiding valve screw 27, the 5th spring 28 is equipped between the 5th spring base 26,
Outside is equipped with spring cup 29；23 top of the shell is equipped with the 6th spring base 30, and 30 lower section of the 6th spring base is equipped with the 6th
Spring 31, the 6th spring 31 are connect with check valve body 32.
Shown in Fig. 6, the lowering valve 3 includes lowering valve plug screw 33 and declines valve seat 34, is set in the lowering valve plug screw 33
Have and decline valve spring 35, the decline valve spring 35 is connected with the second steel ball 36, second steel ball 36 and the decline valve seat
34 are connected, and push rod 37 is equipped in the decline valve seat 34, and the push rod 37 is connect with second steel ball 36.
Shown in Fig. 7, the check valve 4 includes check valve plug screw 38 and one-way valve seat 39, is set in the check valve plug screw 38
There are one-way valve spring 40, the one-way valve spring 40 to be connected with third steel ball 41, the third steel ball 41 and the one-way valve seat
39 are connected.
Shown in Fig. 8, the safety valve 5 includes nut 42, swivel nut 43 and safe valve pocket 44, is sequentially connected, the nut 42
It is equipped with seal washer 45 between swivel nut 43, the 4th steel ball 46, the 7th spring base 47 and the 7th bullet are equipped in the swivel nut 43
Spring 48, is equipped with safe spool 49 in the safe valve pocket 44, described 7th spring, 48 one end stretch into swivel nut 43 successively with the 7th bullet
Spring abutment 47, the connection of the 4th steel ball 46, the other end are stretched into safe valve pocket 44 and are connect with safe spool 49.
Each valve body junction is equipped with O-ring seals.
The combined type hydraulic control valve is compact-sized, good airproof performance, performance is stable, reliability is high, flow efficiency is high,
Multifunctional assembled hydraulic control valve that is antifreeze, easy to repair, can realizing requirement is supplied by the way of connection in series-parallel combination
Oil is not limited by a space, and fuel delivery is sufficient, and promotion speed is fast, will not card valve.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are not departing from the utility model
Principle and objective in the case of above-described embodiment can be changed in the scope of the utility model, change, replace and
Modification carries out it simply to combine to change all being classified as within the protection of the utility model.
Claims (10)
1. a kind of multifunctional assembled hydraulic control valve, it is characterised in that：Including a piece of lifter control valve（1）And two panels liquid
Pressure control valve（2）, the hydraulic control valve described in two panels（2）Parallel connection, then with the lifter control valve（1）Series connection, it is described to carry
Rise device control valve（1）It is connected with horizontally disposed lowering valve（3）And check valve（4）, the lowering valve（3）With check valve（4）And
Connection, the lifter control valve（1）It is also associated with safety valve（5）, the safety valve（5）Side is equipped with oil inlet（6）.
2. a kind of multifunctional assembled hydraulic control valve according to claim 1, it is characterised in that：The lifter control
Valve（1）Including Scotch yoke（7）, the Scotch yoke（7）Top is connected with hand lever（8）, side and the lowering valve（3）Even
It connects.
3. a kind of multifunctional assembled hydraulic control valve according to claim 2, it is characterised in that：The Scotch yoke
（7）Including guiding valve（9）And guide rod（10）, the guiding valve（9）With guide rod（10）Between be additionally provided with telescoping mechanism.
4. a kind of multifunctional assembled hydraulic control valve according to claim 3, it is characterised in that：The telescoping mechanism packet
It includes and is mounted on the guiding valve（9）The first interior steel ball（11）And back-up valve（12）, the back-up valve（12）One end and described first
Steel ball（11）Cooperation contact, the other end are connected with the first spring base（13）, first spring base（13）Pass through locating piece（111）
With guiding valve（9）Connection, first spring base（13）It is connected with the first spring（14）, first spring（14）One end and the
One spring base（13）Connection, the other end are connected with second spring seat（15）, the second spring seat（15）Pass through locked spacer
（16）With the guide rod（10）Connection, the guiding valve（9）Outer ring is equipped with positioning sleeve（17）, the positioning sleeve（17）Both sides are set respectively
There is a pair of of third spring base（18）With a pair of 4th spring base（19）, the third spring base（18）With the 4th spring base（19）It
Between be respectively equipped with third spring（20）With the 4th spring（21）.
5. a kind of multifunctional assembled hydraulic control valve according to claim 3 or 4, it is characterised in that：The guide rod
（10）It is interior to be equipped with pressure regulation screw plug（22）.
6. a kind of multifunctional assembled hydraulic control valve according to claim 1, it is characterised in that：The two panels hydraulic pressure control
Valve processed（2）It is connected by three-position valve body assembly, the three-position valve body assembly includes shell（23）With three-position valve bar（24）, the shell
Body（23）Equipped with baffle（25）, the three-position valve bar（24）Across the shell（23）And baffle（25）And pass through baffle（25）Gu
It is fixed, the three-position valve bar（24）End is equipped with a pair of 5th spring base（26）, described two 5th spring bases（26）Pass through guiding valve
Screw（27）Fixed to the three-position valve bar（24）End, the 5th spring base（26）Between be equipped with the 5th spring（28）,
Outside is equipped with spring cup（29）；The shell（23）Top is equipped with the 6th spring base（30）, the 6th spring base（30）Lower section
Equipped with the 6th spring（31）, the 6th spring（31）With check valve body（32）Connection.
7. a kind of multifunctional assembled hydraulic control valve according to claim 1, it is characterised in that：The lowering valve（3）
Including lowering valve plug screw（33）With decline valve seat（34）, the lowering valve plug screw（33）Interior be equipped with declines valve spring（35）, described
Decline valve spring（35）It is connected with the second steel ball（36）, second steel ball（36）With the decline valve seat（34）It is connected,
The decline valve seat（34）It is interior to be equipped with push rod（37）, the push rod（37）With second steel ball（36）Connection.
8. a kind of multifunctional assembled hydraulic control valve according to claim 1, it is characterised in that：The check valve（4）
Including check valve plug screw（38）And one-way valve seat（39）, the check valve plug screw（38）It is interior to be equipped with one-way valve spring（40）, described
One-way valve spring（40）It is connected with third steel ball（41）, the third steel ball（41）With the one-way valve seat（39）It is connected.
9. a kind of multifunctional assembled hydraulic control valve according to claim 1, it is characterised in that：The safety valve（5）
Including nut（42）, swivel nut（43）With safe valve pocket（44）, it is sequentially connected, the nut（42）With swivel nut（43）Between be equipped with it is close
Seal washer（45）, the swivel nut（43）Inside it is equipped with the 4th steel ball（46）, the 7th spring base（47）And the 7th spring（48）, described
Safe valve pocket（44）It is interior to be equipped with safe spool（49）, the 7th spring（48）Swivel nut is stretched into one end（43）Successively with the 7th spring
Seat（47）, the 4th steel ball（46）Connection, the other end stretch into safe valve pocket（44）Interior and safe spool（49）Connection.
10. a kind of multifunctional assembled hydraulic control valve according to any one of claim 1-4,6-9, feature exist
In：Each valve body junction is equipped with O-ring seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721700124.6U CN207830251U (en) | 2017-12-08 | 2017-12-08 | A kind of multifunctional assembled hydraulic control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721700124.6U CN207830251U (en) | 2017-12-08 | 2017-12-08 | A kind of multifunctional assembled hydraulic control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207830251U true CN207830251U (en) | 2018-09-07 |
Family
ID=63387239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721700124.6U Active CN207830251U (en) | 2017-12-08 | 2017-12-08 | A kind of multifunctional assembled hydraulic control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207830251U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956757A (en) * | 2017-12-08 | 2018-04-24 | 山东弘宇农机股份有限公司 | A kind of multifunctional assembled hydraulic control valve |
| CN113586543A (en) * | 2021-07-27 | 2021-11-02 | 江苏徐工工程机械研究院有限公司 | Machine descending stability control method and system and tractor |
-
2017
- 2017-12-08 CN CN201721700124.6U patent/CN207830251U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956757A (en) * | 2017-12-08 | 2018-04-24 | 山东弘宇农机股份有限公司 | A kind of multifunctional assembled hydraulic control valve |
| CN113586543A (en) * | 2021-07-27 | 2021-11-02 | 江苏徐工工程机械研究院有限公司 | Machine descending stability control method and system and tractor |
| WO2023004999A1 (en) * | 2021-07-27 | 2023-02-02 | 江苏徐工工程机械研究院有限公司 | Method and system for controlling machine tool descent stability, and tractor |
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