CN202851502U - Valve bank used for series-parallel switch of multiple quantification hydraulic pressure motor - Google Patents
Valve bank used for series-parallel switch of multiple quantification hydraulic pressure motor Download PDFInfo
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- CN202851502U CN202851502U CN 201220564467 CN201220564467U CN202851502U CN 202851502 U CN202851502 U CN 202851502U CN 201220564467 CN201220564467 CN 201220564467 CN 201220564467 U CN201220564467 U CN 201220564467U CN 202851502 U CN202851502 U CN 202851502U
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- hydraulic
- hydraulic pressure
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- fluid port
- constant displacement
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Abstract
The utility model relates to a valve bank used for series-parallel switch of multiple quantification hydraulic pressure motors. The valve bank used for series-parallel switch of multiple quantification hydraulic pressure motors comprises a hydraulic pressure manifold block, a quantification hydraulic pressure motor, and a fuel tank. The hydraulic pressure manifold block comprises an electro-hydraulic directional control valve. A first oil port of the hydraulic pressure manifold block is connected with a first oil port of a first quantification hydraulic pressure motor and a second quantification hydraulic pressure motor which are connected in a parallel mode. A second oil port of the first quantification hydraulic pressure motor and the second quantification hydraulic pressure motor is connected with a T-opening of the electro-hydraulic directional control valve. A B-opening of the electro-hydraulic directional control valve is connected with a first oil port of the third quantification hydraulic pressure motor and the fourth quantification hydraulic pressure motor which are connected in a parallel mode. A P-opening of the electro-hydraulic directional control valve is connected with a first oil port of the hydraulic pressure manifold block. An A-opening of the electro-hydraulic directional control valve is connected with the hydraulic pressure manifold block. A second oil port of the third quantification hydraulic pressure motor and the fourth quantification hydraulic pressure motor is connected with the second oil port of the hydraulic pressure manifold block. The problem of series-parallel switch of multiple quantification hydraulic pressure motors is solved, and speed and torque changes of quantification motors are achieved.
Description
Technical field
The utility model relates to a kind of valve group, particularly a kind of valve group for a plurality of constant displacement hydraulic motor series parallel connection switchings.
Background technique
A plurality of oil hydraulic motor Placements generally have two kinds, and a kind of is in parallel, and another kind is series connection.The oil hydraulic motor that parallel way connects can be exported larger output torque, but rotating speed is low; The oil hydraulic motor that serial fashion connects can be exported higher rotating speed, but output torque is little; But in actual conditions, need the large rotating speed of output torque to hang down and high these the two kinds of different operating modes of the little rotating speed of output torque.The method of generally dealing with problems is the oil hydraulic motor parallel way that adopt to become discharge capacity, realize the little rotating speed of output torque high method be that the discharge capacity that reduces motor can solve; It is more expensive that but the shortcoming of this method is variable displacement motor.To realize comparatively difficulty of various working for a plurality of constant displacement hydraulic motor Placements cheaply, so imagined the valve group that a kind of series parallel connection that realizes constant displacement hydraulic motor is switched, solve this problem by the valve control.
The model utility content
The purpose of this utility model is to overcome the defective that prior art exists, and provides a kind of and realizes that variation on fixed displacement motor speed and the moment of torsion is to satisfy the valve group that a plurality of constant displacement hydraulic motor series parallel connection are switched that is used for of different working condition requirements.
The technological scheme that realizes the utility model purpose is: a kind of valve group for a plurality of constant displacement hydraulic motor series parallel connection switchings comprises hydraulic manifold block, constant displacement hydraulic motor and fuel tank; Described hydraulic manifold block comprises electro-hydraulic reversing valve; The first hydraulic fluid port of described hydraulic manifold block is connected with the first constant displacement hydraulic motor in parallel, the first hydraulic fluid port of the second constant displacement hydraulic motor; The second hydraulic fluid port of described the first constant displacement hydraulic motor, the second constant displacement hydraulic motor is connected with the T mouth of electro-hydraulic reversing valve; The B mouth of described electro-hydraulic reversing valve is connected with the 3rd constant displacement hydraulic motor in parallel, the first hydraulic fluid port of the 4th constant displacement hydraulic motor, the P mouth of electro-hydraulic reversing valve is connected with the first hydraulic fluid port of hydraulic manifold block, and the A mouth of electro-hydraulic reversing valve is connected with the second hydraulic fluid port of hydraulic manifold block; The second hydraulic fluid port of described the 3rd constant displacement hydraulic motor, the 4th constant displacement hydraulic motor is connected with the second hydraulic fluid port of hydraulic manifold block.
The described hydraulic manifold block of technique scheme also comprises shuttle valve; Two suction ports are connected with the second hydraulic fluid port with the first hydraulic fluid port of hydraulic manifold block respectively about described shuttle valve, and the air outlet of shuttle valve is connected with the piston of electro-hydraulic reversing valve.
Technique scheme also comprises fuel tank; The oil outlet end of described mailbox is connected with the piston of electro-hydraulic reversing valve.
After adopting technique scheme, the utlity model has following positive effect:
(1) the utility model has solved a plurality of constant displacement hydraulic motor series parallel connection switching problems, realizes variation on fixed displacement motor speed and the moment of torsion to satisfy different working condition requirements, and the variable hydraulic motor of comparing is comparatively economical.
(2) hydraulic manifold block of the present utility model also comprises shuttle valve; Two suction ports are connected with the second hydraulic fluid port with the first hydraulic fluid port of hydraulic manifold block respectively about shuttle valve, and the air outlet of shuttle valve is connected with the piston of electro-hydraulic reversing valve; The source that uses the thread cartridge shuttle valve successfully to solve electro-hydraulic reversing valve external control guide oil in this valve group avoids the pipeline of external guide oil to produce the device of guide oil.
Description of drawings
Content of the present utility model is easier to be expressly understood in order to make, and the below is described in further detail the utility model, wherein according to specific embodiment also by reference to the accompanying drawings
Fig. 1 is hydraulic schematic diagram of the present utility model;
1. hydraulic manifold blocks among the figure, 11. electro-hydraulic reversing valves, 12. shuttle valves, 2. the first constant displacement hydraulic motor, 3. the second constant displacement hydraulic motor, 4. the 3rd constant displacement hydraulic motor, 5. the 4th constant displacement hydraulic motor, 6. fuel tank.
Embodiment
(embodiment 1)
See Fig. 1, the utility model comprises hydraulic manifold block 1 and constant displacement hydraulic motor; Hydraulic manifold block 1 comprises electro-hydraulic reversing valve 11; The first hydraulic fluid port of hydraulic manifold block 1 is connected with the first constant displacement hydraulic motor 2 in parallel, the first hydraulic fluid port of the second constant displacement hydraulic motor 3; The second hydraulic fluid port of the first constant displacement hydraulic motor 2, the second constant displacement hydraulic motor 3 is connected with the T mouth of electro-hydraulic reversing valve 11; The B mouth of electro-hydraulic reversing valve 11 is connected with the 3rd constant displacement hydraulic motor 4 in parallel, the first hydraulic fluid port of the 4th constant displacement hydraulic motor 5, the P mouth of electro-hydraulic reversing valve 11 is connected with the first hydraulic fluid port of hydraulic manifold block 1, and the A mouth of electro-hydraulic reversing valve 11 is connected with the second hydraulic fluid port of hydraulic manifold block 1; The second hydraulic fluid port of the 3rd constant displacement hydraulic motor 4, the 4th constant displacement hydraulic motor 5 is connected with the second hydraulic fluid port of hydraulic manifold block 1.
Also comprise fuel tank 6; The oil outlet end of fuel tank 6 is connected with the piston of electro-hydraulic reversing valve 11.
Working principle of the present utility model is: horizontal directional drilling machine creep into and return drag in, this kind working condition requirement speed is slow, moment of torsion is large, what unit head rotation and push-and-pull motor adopted is parallel way; Electro-hydraulic reversing valve 11 switches the first hydraulic fluid port that the P mouth that enters into electro-hydraulic reversing valve 11 from the first hydraulic fluid port of the hydraulic manifold block 1 B mouth by electro-hydraulic reversing valve 11 enters into three constant displacement hydraulic motors 4, the 4th constant displacement hydraulic motor 5 again and flows out by the second hydraulic fluid port from hydraulic manifold block 11 behind the second hydraulic fluid port.Another road enters into the T mouth that enters electro-hydraulic reversing valve 11 behind the first hydraulic fluid port of the first constant displacement hydraulic motor 2, the second constant displacement hydraulic motor 3 A mouth by electro-hydraulic reversing valve 11 and links to each other with the second hydraulic fluid port of hydraulic manifold block 11 from the pressure oil of the first hydraulic fluid port of hydraulic manifold block 1.
Make cell walls smooth in the alluvial of removing the duct, this kind operating mode speed is wanted soon, moment of torsion is little, and what unit head rotation and push-and-pull motor adopted is serial fashion.Enter into the first hydraulic fluid port that the T mouth that enters electro-hydraulic reversing valve 11 behind the first hydraulic fluid port of the first constant displacement hydraulic motor 2, the second constant displacement hydraulic motor 3 B mouth by electro-hydraulic reversing valve 11 enters into the 3rd constant displacement hydraulic motor 4, the 4th constant displacement hydraulic motor 5 again flows out by the second hydraulic fluid port from hydraulic manifold block 1 behind the second hydraulic fluid port from the first hydraulic fluid port of hydraulic manifold block 1.
More than say be forward the time situation, pressure oil enters from the second hydraulic fluid port of hydraulic manifold block 11 during counter-rotating, is not giving unnecessary details.
The effect of shuttle valve 12 herein is in order to get guide oil, because the P mouth of electro-hydraulic reversing valve 11 is not that pressure is arranged all the time, so control form can not be selected the electro-hydraulic reversing valve 11 of internal control mode.If the guide oil of the electro-hydraulic reversing valve of external control 11 uses pioneer pump can increase a lot of costs, the form guide oil of employing shuttle valve 12 is taken from the first hydraulic fluid port, second hydraulic fluid port of pressure oil, and the clockwise and anticlockwise guide oil all is the high pressure side of taking from the pressure hydraulic fluid port.A kind of economized form, so have its points of course.
Above-described specific embodiment; the purpose of this utility model, technological scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (3)
1. one kind is used for the valve group that a plurality of constant displacement hydraulic motor series parallel connection are switched, and it is characterized in that: comprise hydraulic manifold block (1) and constant displacement hydraulic motor; Described hydraulic manifold block (1) comprises electro-hydraulic reversing valve (11); The first hydraulic fluid port of described hydraulic manifold block (1) is connected with the first constant displacement hydraulic motor (2) in parallel, the first hydraulic fluid port of the second constant displacement hydraulic motor (3); The second hydraulic fluid port of described the first constant displacement hydraulic motor (2), the second constant displacement hydraulic motor (3) is connected with the T mouth of electro-hydraulic reversing valve (11); The B mouth of described electro-hydraulic reversing valve (11) is connected with the 3rd constant displacement hydraulic motor (4) in parallel, the first hydraulic fluid port of the 4th constant displacement hydraulic motor (5), the P mouth of electro-hydraulic reversing valve (11) is connected with the first hydraulic fluid port of hydraulic manifold block (1), and the A mouth of electro-hydraulic reversing valve (11) is connected with the second hydraulic fluid port of hydraulic manifold block (1); The second hydraulic fluid port of described the 3rd constant displacement hydraulic motor (4), the 4th constant displacement hydraulic motor (5) is connected with the second hydraulic fluid port of hydraulic manifold block (1).
2. the valve group of switching for a plurality of constant displacement hydraulic motor series parallel connection according to claim 1, it is characterized in that: described hydraulic manifold block (1) also comprises shuttle valve (12); Two suction ports are connected with the second hydraulic fluid port with the first hydraulic fluid port of hydraulic manifold block (1) respectively about described shuttle valve (12), and the air outlet of shuttle valve (12) is connected with the piston of electro-hydraulic reversing valve (11).
3. the valve group for a plurality of constant displacement hydraulic motor series parallel connection switchings according to claim 2 is characterized in that: also comprise fuel tank (6); The oil outlet end of described fuel tank (6) is connected with the piston of electro-hydraulic reversing valve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220564467 CN202851502U (en) | 2012-10-30 | 2012-10-30 | Valve bank used for series-parallel switch of multiple quantification hydraulic pressure motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220564467 CN202851502U (en) | 2012-10-30 | 2012-10-30 | Valve bank used for series-parallel switch of multiple quantification hydraulic pressure motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851502U true CN202851502U (en) | 2013-04-03 |
Family
ID=47982709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220564467 Expired - Fee Related CN202851502U (en) | 2012-10-30 | 2012-10-30 | Valve bank used for series-parallel switch of multiple quantification hydraulic pressure motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851502U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613040A (en) * | 2015-02-06 | 2015-05-13 | 郑州宇通重工有限公司 | Series-parallel connection oil supplementary valve of motor rotating system |
| CN106286448A (en) * | 2016-10-09 | 2017-01-04 | 无锡市钻通工程机械有限公司 | A kind of tandem hydraulic loop |
-
2012
- 2012-10-30 CN CN 201220564467 patent/CN202851502U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613040A (en) * | 2015-02-06 | 2015-05-13 | 郑州宇通重工有限公司 | Series-parallel connection oil supplementary valve of motor rotating system |
| CN104613040B (en) * | 2015-02-06 | 2016-09-07 | 郑州宇通重工有限公司 | A kind of serial-parallel motor rotary system Fill valve |
| CN106286448A (en) * | 2016-10-09 | 2017-01-04 | 无锡市钻通工程机械有限公司 | A kind of tandem hydraulic loop |
| CN106286448B (en) * | 2016-10-09 | 2018-05-22 | 无锡市钻通工程机械有限公司 | A kind of tandem hydraulic circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20131030 |