CN209164226U - A kind of valve block and the hydraulic 4 wheel driven power distributing mechanism based on the valve block - Google Patents
A kind of valve block and the hydraulic 4 wheel driven power distributing mechanism based on the valve block Download PDFInfo
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- CN209164226U CN209164226U CN201822051265.0U CN201822051265U CN209164226U CN 209164226 U CN209164226 U CN 209164226U CN 201822051265 U CN201822051265 U CN 201822051265U CN 209164226 U CN209164226 U CN 209164226U
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- valve
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- oil
- valve block
- oil outlet
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Abstract
A kind of hydraulic 4 wheel driven power distributing mechanism the utility model proposes valve block and based on the valve block.The valve block is equipped with oil inlet, the first oil outlet and the second oil outlet；The valve block includes the first sequence valve, the second sequence valve and logical valve, oil inlet of the oil inlet of first sequence valve and the second sequence valve as the valve block；First sequence valve control port connects the second oil circuit first interface of the logical valve, and the second oil circuit second interface connects the second sequence valve oil outlet, and the second sequence valve oil outlet is the second oil outlet of the valve block；Second sequence valve control port connects the first oil circuit first interface of the logical valve, and the first oil circuit second interface connects the first sequence valve oil outlet, and the first sequence valve oil outlet is the first oil outlet of the valve block.The valve block structure is simple, can effectively limit a large amount of hydraulic oil and is lost by the hydraulic motor, keep the operating pressure of another hydraulic motor.
Description
Technical field
The utility model relates to field of hydraulic control, and in particular to a kind of valve block and hydraulic 4 wheel driven based on the valve block are diligent
Rate distributor gear.
Background technique
Currently, during agricultural machinery working, the case where driving wheel skids is frequently encountered, especially in deserts in Xinjiang,
The 4 wheel driven function of agricultural machinery is particularly important.The 4 wheel driven of design early period, is a hydraulic pump output hydraulic pressure energy, before being responsible for two
The hydraulic motor with rear-guard is driven, the driving of vehicle is completed.If Fig. 1, Fig. 1 are the schematic diagram of existing hydraulic four-wheel drive system, but work as
There is the hydraulic motor quick rotation for the wheel that driving is skidded in one wheel-slip, since the pressure in hydraulic pipeline is the same
, a large amount of hydraulic energy disappears from this hydraulic motor rotation process, and other vehicle bridge lose the pressure of driving, this is just
It is the normal reaction that former and later two hydraulic motors are connected in parallel in a hydraulic pump oil supply system.
Tracing it to its cause is when a wheel loses the adhesive force with ground, and the reaction force of wheel is reduced to most
It is small, while pressure of the oil liquid in pipe-line system is that equal, relatively low pressure can not drive cohesive wheel,
A large amount of hydraulic oil is caused to be lost rapidly on the hydraulic motor for the wheel that driving is skidded, the state for causing vehicle that can not travel.
Utility model content
In order to overcome above-mentioned defect existing in the prior art, the purpose of the utility model is to provide a kind of valve block and it is based on
The hydraulic 4 wheel driven power distributing mechanism of the valve block.
In order to realize the above-mentioned purpose of the utility model, the utility model provides a kind of valve block, which is equipped with oil inlet
Mouth, the first oil outlet and the second oil outlet；
The valve block includes the first sequence valve, the second sequence valve and logical valve, first sequence valve and the second sequence valve
Oil inlet of the oil inlet as the valve block；
First sequence valve control port connects the second oil circuit first interface of the logical valve, and the second oil circuit second interface connects
The second sequence valve oil outlet is connect, the second sequence valve oil outlet is the second oil outlet of the valve block；Second sequence valve control oil
Mouth connects the first oil circuit first interface of the logical valve, and the first oil circuit second interface connects the first sequence valve oil outlet, described
First sequence valve oil outlet is the first oil outlet of the valve block.
The valve block structure is simple, has a wide range of application, when driving two hydraulic motors especially suitable for solving hydraulic pump, when certain
Reaction force suffered by one hydraulic motor reduces, and causes a large amount of hydraulic oil the problem of being lost rapidly on the hydraulic motor, can have
Effect limits a large amount of hydraulic oil and is lost by the hydraulic motor, keeps the operating pressure of another hydraulic motor.
It further, further include the first check valve and second one-way valve, described in the input terminal connection of first check valve
First sequence valve oil outlet, the output end of first check valve connect the oil inlet of first sequence valve；
The input terminal of the second one-way valve connects the second sequence valve output oil port, the output of the second one-way valve
End connects the oil inlet of second sequence valve.
The effect of first check valve and second one-way valve is exactly in high pressure liquid pressure oil from the first sequence valve oil outlet and second
When sequence valve oil outlet opposite direction enters, make the first sequence valve and the second sequence valve ineffective, it is directly single by first
It is returned in the hydraulic pump for hydraulic oil to valve and second one-way valve.
The utility model also proposed a kind of hydraulic 4 wheel driven power distributing mechanism, including the first valve block and the second valve block,
First valve block and the second valve block are above-mentioned valve block；
The oil inlet of first valve block connects the first hydraulic fluid port of hydraulic pump, before the first oil outlet connection of first valve block
Drive the first hydraulic fluid port of hydraulic motor, the first hydraulic fluid port of the second oil outlet connection rear-guard hydraulic motor of first valve block；
The oil inlet of second valve block connects the second hydraulic fluid port of hydraulic pump, before the first oil outlet connection of second valve block
Drive the second hydraulic fluid port of hydraulic motor, the second hydraulic fluid port of the second oil outlet connection rear-guard hydraulic motor of second valve block；
First hydraulic fluid port of hydraulic pump and the second hydraulic fluid port of hydraulic pump are not high pressure oil outlet or low pressure oil return opening simultaneously.
After the hydraulic 4 wheel driven uses above-mentioned valve block with power distributing mechanism, when can effectively solve tyre slip, a large amount of liquid
Pressure oil is the problem of being lost rapidly on the hydraulic motor for the tire that driving is skidded, travelling vehicle can not.
Further, it is unidirectional that the third to circulate to hydraulic pump direction is equipped between first hydraulic fluid port of hydraulic pump and fuel tank
Valve is equipped with the 4th check valve to circulate to hydraulic pump direction between second hydraulic fluid port of hydraulic pump and fuel tank.It is unidirectional by third
Valve and the 4th check valve carry out repairing to the pipeline between hydraulic pump and fuel tank.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the structural schematic diagram of valve block；
Fig. 2 is the structural schematic diagram of hydraulic 4 wheel driven power distributing mechanism.
Specific embodiment
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.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, unless otherwise specified and limited, it should be noted that term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, the company being also possible to inside two elements
It is logical, it can be directly connected, can also indirectly connected through an intermediary, for the ordinary skill in the art, it can
To understand the concrete meaning of above-mentioned term as the case may be.
As shown in Figure 1, the utility model provides a kind of valve block, which is equipped with oil inlet, the first oil outlet and second
Oil outlet.
The valve block includes the first sequence valve 2, the second sequence valve 4 and logical valve 7, first sequence valve 2 and the second sequence
Oil inlet of the oil inlet of valve 4 as the valve block.Here the oil inlet of first sequence valve 2 and the second sequence valve 4 can be connected
It is connected to same pipeline, the pipeline oil inlet 3 is with regard to the oil inlet as the valve block.
First sequence valve control port 9 connects the second oil circuit first interface 10 of the logical valve 7, and the second oil circuit second connects
Mouth 14 connects the second sequence valve oil outlets 8, and the second sequence valve oil outlet 8 is the second oil outlet of the valve block；Second sequence
Valve control port 12 connects the first oil circuit first interface 13 of the logical valve 7, and the connection first of the first oil circuit second interface 11 is suitable
Sequence valve oil outlet 6, the first sequence valve oil outlet 6 are the first oil outlet of the valve block.
In practical application, the oil inlet of the valve block is connect with external high pressure oil outlet, such as hydraulic pump high pressure oil outlet,
First oil outlet of the valve block connects the first hydraulic motor, and the second oil outlet of the valve block connects the second hydraulic motor.
External high pressure oil is inputted from the oil inlet of the valve block, and two-way is divided into inside valve block, and the first via connects the first sequence
Valve 2, the second tunnel connect the second sequence valve 4, the first sequence valve oil outlet 6 and the second sequence valve oil outlet 8 and provide system to logical valve 7
It unites feedback pressure, is communicated to the first sequence valve 2 and the second sequence valve 4 respectively inside logical valve 7；Throttle valve inside logical valve 7
The operating pressure of output can be depressurized with manual setting, logical valve 7 is connected to the actual working pressure of two hydraulic motors.Second sequence
The feedback pressure of the control port 12 of valve 4 is communicated by a throttle valve inside logical valve 7 with the first sequence valve oil outlet 6.
The feedback pressure of the control port 9 of first sequence valve 2 is fuel-displaced by another throttle valve inside logical valve 7 and the second sequence valve
Mouth 8 communicates.
The output pressure of first sequence valve 2 and the second sequence valve 4 is consistent within the scope of system working pressure, when first
In the case that hydraulic motor has skidded, the operating pressure of the first hydraulic motor can be reduced rapidly, and the first sequence valve oil outlet 6 is anti-
It feeds logical valve 7, maximum pressure is fed back to the first sequence valve 2 by logical valve 7, and the first sequence valve 2 plays the role of throttling, limitation
A large amount of hydraulic oil are lost by the first hydraulic motor, and the second hydraulic motor is kept to have operating pressure.Under normal operation, first
Feedback pressure on sequence valve 2 and the second sequence valve 4 is the maximum pressure of two hydraulic motors work, so the first sequence valve 2
The flow for being output to hydraulic motor with the control of the second sequence valve 4 remains unchanged substantially, not will cause a large amount of oil liquid and passes through skidding
Hydraulic motor and be lost.
The feedback pressure of the cohesive hydraulic motor hydraulic motor phase low with pressure by the throttle valve in logical valve 7
It is logical, feedback pressure is caused, the automatic reduction choke pressure of the first sequence valve 2 and 4 inside of the second sequence valve allows and is applied to hydraulic motor
On pressure improve, realize the automatic distribution of hydraulic system power.When the hydraulic motor of driving skidding tire restores driving pressure
When power, system automatically restores to original setting state.
As the preferred embodiment of the valve block, which further includes the first check valve 1 and second one-way valve 5, and described first is single
The first sequence valve oil outlet 6 is connected to the input terminal of valve 1, the output end connection described first of first check valve 1 is suitable
The oil inlet of sequence valve 2.The input terminal of the second one-way valve 5 connects the second sequence valve output oil port 8, and described second is unidirectional
The output end of valve 5 connects the oil inlet of second sequence valve 4.
The effect of first check valve 1 and second one-way valve 5 is exactly in high pressure liquid pressure oil from the first sequence valve oil outlet 6 and
When two sequence valve oil outlets, 8 opposite direction enters, make the first sequence valve 2 and the second sequence valve 4 ineffective, hydraulic oil is direct
Pass through from the first check valve 1 and second one-way valve 5, avoids the first sequence valve 2 and the second sequence valve 4.
The utility model also proposed a kind of hydraulic 4 wheel driven power distributing mechanism, including the first valve block A and the second valve block
B, the first valve block A and the second valve block B are above-mentioned valve block；
The oil inlet of the first valve block A connects 15 first hydraulic fluid port of hydraulic pump, and the first oil outlet of the first valve block A connects
The first hydraulic fluid port of forerunner's hydraulic motor 16 is connect, the second oil outlet of the first valve block A connects the first of rear-guard hydraulic motor 17
Hydraulic fluid port.
The oil inlet of the second valve block B connects 15 second hydraulic fluid port of hydraulic pump, and the first oil outlet of the second valve block B connects
The second hydraulic fluid port of forerunner's hydraulic motor 16 is connect, the second oil outlet of the second valve block B connects the second of rear-guard hydraulic motor 17
Hydraulic fluid port.
15 first hydraulic fluid port of hydraulic pump and 15 second hydraulic fluid port of hydraulic pump are not high pressure oil outlet or low pressure oil return simultaneously
Mouthful.
The third check valve to circulate to 15 direction of hydraulic pump, institute are equipped between 15 first hydraulic fluid port of hydraulic pump and fuel tank 18
State the 4th check valve for being equipped between 15 second hydraulic fluid port of hydraulic pump and fuel tank 18 and circulating to 15 direction of hydraulic pump.It is unidirectional by third
Valve and the 4th check valve carry out repairing to pipeline.
The hydraulic 4 wheel driven can be applied on a variety of hydraulic-driven machines with power distributing mechanism, such as agricultural machinery.
When the first hydraulic fluid port of hydraulic pump 15 is high pressure oil outlet, and the second hydraulic fluid port of hydraulic pump 15 is low pressure oil return opening,
Forerunner's hydraulic motor 16 and rear-guard hydraulic motor 17 rotate forward, and the second hydraulic fluid port of forerunner's hydraulic motor 16 and rear-guard hydraulic motor 17 is defeated
The first check valve 1 and second one-way valve 5 that hydraulic oil out passes through in the second valve block B return in hydraulic pump 15.
When the second hydraulic fluid port of hydraulic pump 15 is high pressure oil outlet, and the first hydraulic fluid port of hydraulic pump 15 is low pressure oil return opening,
Forerunner's hydraulic motor 16 and rear-guard hydraulic motor 17 invert, and the first hydraulic fluid port of forerunner's hydraulic motor 16 and rear-guard hydraulic motor 17 is defeated
The first check valve 1 and second one-way valve 5 that hydraulic oil out passes through in the first valve block A return in hydraulic pump 15.
After the hydraulic 4 wheel driven uses above-mentioned valve block with power distributing mechanism, when can effectively solve tyre slip, a large amount of liquid
Pressure oil is the problem of being lost rapidly on the hydraulic motor for the tire that driving is skidded, travelling vehicle can not.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective
And modification, the scope of the utility model are defined by the claims and their equivalents.
Claims (4)
1. a kind of valve block, it is characterised in that: the valve block is equipped with oil inlet, the first oil outlet and the second oil outlet；
The valve block includes the first sequence valve (2), the second sequence valve (4) and logical valve (7), first sequence valve (2) and second
Oil inlet of the oil inlet of sequence valve (4) as the valve block；
First sequence valve control port (9) connects the second oil circuit first interface (10) of the logical valve (7), the second oil circuit second
Interface (14) connects the second sequence valve oil outlet (8), and the second sequence valve oil outlet (8) is the second oil outlet of the valve block；
Second sequence valve control port (12) connects the first oil circuit first interface (13) of the logical valve (7), and the first oil circuit second connects
Mouth (11) connects the first sequence valve oil outlet (6), and the first sequence valve oil outlet (6) is the first oil outlet of the valve block.
2. valve block according to claim 1, it is characterised in that: it further include the first check valve (1) and second one-way valve (5),
The input terminal of first check valve (1) connects the first sequence valve oil outlet (6), the output of first check valve (1)
End connects the oil inlet of first sequence valve (2)；
The input terminal of the second one-way valve (5) connects the second sequence valve oil outlet (8), the second one-way valve (5)
Output end connects the oil inlet of second sequence valve (4).
3. a kind of hydraulic 4 wheel driven power distributing mechanism, it is characterised in that: described including the first valve block (A) and the second valve block (B)
First valve block (A) and the second valve block (B) are valve block as claimed in claim 2；
The oil inlet of first valve block (A) connects (15) first hydraulic fluid port of hydraulic pump, the first oil outlet of first valve block (A)
First hydraulic fluid port of forerunner's hydraulic motor (16) is connected, the second oil outlet of first valve block (A) connects rear-guard hydraulic motor
(17) the first hydraulic fluid port；
The oil inlet of second valve block (B) connects (15) second hydraulic fluid port of hydraulic pump, the first oil outlet of second valve block (B)
Second hydraulic fluid port of forerunner's hydraulic motor (16) is connected, the second oil outlet of second valve block (B) connects rear-guard hydraulic motor
(17) the second hydraulic fluid port；
(15) first hydraulic fluid port of hydraulic pump and (15) second hydraulic fluid port of hydraulic pump are not high pressure oil outlet or low pressure oil return simultaneously
Mouthful.
4. hydraulic 4 wheel driven power distributing mechanism according to claim 3, it is characterised in that: the hydraulic pump (15) first
The third check valve to circulate to hydraulic pump (15) direction, (15) second hydraulic fluid port of hydraulic pump are equipped between hydraulic fluid port and fuel tank (18)
The 4th check valve to circulate to hydraulic pump (15) direction is equipped between fuel tank (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822051265.0U CN209164226U (en) | 2018-12-07 | 2018-12-07 | A kind of valve block and the hydraulic 4 wheel driven power distributing mechanism based on the valve block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822051265.0U CN209164226U (en) | 2018-12-07 | 2018-12-07 | A kind of valve block and the hydraulic 4 wheel driven power distributing mechanism based on the valve block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209164226U true CN209164226U (en) | 2019-07-26 |
Family
ID=67342734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822051265.0U Withdrawn - After Issue CN209164226U (en) | 2018-12-07 | 2018-12-07 | A kind of valve block and the hydraulic 4 wheel driven power distributing mechanism based on the valve block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209164226U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404360A (en) * | 2018-12-07 | 2019-03-01 | 重庆神工农业装备有限责任公司 | Valve block and hydraulic 4 wheel driven power distributing mechanism based on the valve block |
-
2018
- 2018-12-07 CN CN201822051265.0U patent/CN209164226U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404360A (en) * | 2018-12-07 | 2019-03-01 | 重庆神工农业装备有限责任公司 | Valve block and hydraulic 4 wheel driven power distributing mechanism based on the valve block |
| CN109404360B (en) * | 2018-12-07 | 2024-01-19 | 重庆机床(集团)有限责任公司 | Valve block and hydraulic four-wheel-drive power distribution mechanism based on same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210429 Address after: Jiang Xi Road 401336 Chongqing Nan'an District No. 6 Patentee after: CHONGQING MACHINE TOOL (Group) Co.,Ltd. Address before: Jiang Xi Road 401336 Chongqing Nan'an District No. 6 Patentee before: CHONGQING SHENGONG AGRICULTURE EQUIPMENT Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190726 Effective date of abandoning: 20240119 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190726 Effective date of abandoning: 20240119 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |