CN204646619U - Inclined disc type axial variable plunger pump power controller - Google Patents
Inclined disc type axial variable plunger pump power controller Download PDFInfo
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- CN204646619U CN204646619U CN201520326633.1U CN201520326633U CN204646619U CN 204646619 U CN204646619 U CN 204646619U CN 201520326633 U CN201520326633 U CN 201520326633U CN 204646619 U CN204646619 U CN 204646619U
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Abstract
Inclined disc type axial variable plunger pump power controller, comprise the valve casing be fixed on the pump housing, it is characterized in that be coaxially set on valve casing constant power control valve and control valve, one end of L-type lever is arranged between constant power control valve and control valve, the other end of described L-type lever and one end of roller post mechanism offset, the other end of roller post mechanism is fixed on the little variable piston rod in the pump housing, the middle part of described L-type lever is rotating to be fixed on valve casing, the beneficial effects of the utility model are the effects that can pump up power control by arranging constant power control valve to plunger, and by built-in L-type lever, roller post mechanism reaches equalising torque and optimizes power curve, shaft orientation plunger variable pump is made to have low pressure and mass flow, high-pressure low-flow, the drive motor power used is little, operate power factor is high, realize the advantages such as energy-conservation.
Description
Technical field
The utility model relates to oil hydraulic pump technical field, is more particularly a kind of inclined disc type axial variable plunger pump power controller.
Background technique
Inclined disc type axial variable plunger pump is often used in engineering machinery, need in traditional variable plunger pump system by maximum service pressure and flow to select the power of motor, therefore, the transmission power of motor is large, make the operation of Variable plunger pump steady not, and waste is caused to the energy.
Summary of the invention
For solving the problem, the utility model devises one can realize power limitation control to plunger pump, equalising torque can also be made invariable power optimization of profile, make the inclined disc type axial variable plunger pump power controller that variable piston pump operation is more stable, its technological scheme is: described inclined disc type axial variable plunger pump power controller, comprise the valve casing be fixed on the pump housing, it is characterized in that be coaxially set on valve casing constant power control valve and control valve, one end of L-type lever is arranged between constant power control valve and control valve, the other end of described L-type lever and one end of roller post mechanism offset, the other end of roller post mechanism is fixed on the little variable piston rod in the pump housing, the middle part of described L-type lever is rotating to be fixed on valve casing.
Constant power control valve described in the utility model comprises spool, and the inner and the thimble of described spool offset, and the outer end of spool is provided with spring seat, and spring seat is connected with the spool plug be fixed on valve casing by valve core spring.
Control valve described in the utility model comprises the spool screw plug be fixed on valve casing, arm spring seat is provided with in spool screw plug, described arm spring seat is set to two pieces, valve core spring II is provided with between two pieces of arm spring seats, arm spring seat wherein one piece and L-type lever offset, another block offsets with the one end of the pre-loading screw be arranged in spool screw plug, and be provided with valve core spring I between the arm spring seat that L-type lever offsets and spool screw plug, the other end of described pre-loading screw extends spool screw plug, and the part of extending is provided with hydraulic nut.
Roller post mechanism described in the utility model comprises the ball offseted with L-type lever, and described ball is arranged on one end of push rod overcoat, and the other end of described push rod overcoat is fixed on little variable piston rod, is set with push rod in described push rod overcoat.
The beneficial effects of the utility model are the effects that can pump up power control by arranging constant power control valve to plunger, and reach equalising torque optimize power curve by built-in L-type lever, roller post mechanism, make shaft orientation plunger variable pump have low pressure and mass flow, high-pressure low-flow, use drive motor power little, operate power factor is high, realize the advantages such as energy-conservation.
accompanying drawing illustrates:
accompanying drawing 1 is the utility model and plunger pump overall structure schematic diagram;
Accompanying drawing 2 is structural representations of the present utility model; In accompanying drawing:
1. the pump housing, 2. stool amount piston cavity, 3. swash plate, 4. valve casing, 5. constant power control valve, 5-1. spool plug, 5-2. valve core spring, 5-3. spring seat, 5-4. spool, 5-5. thimble, 6.L type lever, 7. control valve, 7-1. arm spring seat, 7-2. valve core spring I, 7-3. valve core spring II, 7-4. spool screw plug, 7-5. pre-loading screw, 7-6. hydraulic nut, 8. roller post mechanism, 8-1. ball, 8-2. push rod overcoat, 8-3. push rod, 9. little variable piston rod, 10. little variable piston cavity.
embodiment:
By reference to the accompanying drawings the utility model is described in further detail, so that the public grasps implementation methods of the present utility model better, the utility model specific embodiment is: described inclined disc type axial variable plunger pump power controller, comprise the valve casing 4 be fixed on the pump housing 1, valve casing 4 has been coaxially set constant power control valve 5 and control valve 7, one end of L-type lever 6 is arranged between constant power control valve 5 and control valve 7, the other end of described L-type lever 6 and one end of roller post mechanism 8 offset, the other end of roller post mechanism 8 is fixed on the little variable piston rod 9 in the pump housing 1, the middle part of described L-type lever 6 is rotating to be fixed on valve casing 4.
Described constant power control valve 5 comprises spool 5-4, and the inner and the thimble 5-5 of described spool 5-4 offset, and the outer end of spool 5-4 is provided with spring seat 5-3, and spring seat 5-3 is connected with the spool plug 5-1 be fixed on valve casing 4 by valve core spring 5-2.
Described control valve 7 comprises the spool screw plug 7-4 be fixed on valve casing 4, arm spring seat 7-1 is provided with in spool screw plug 7-4, described arm spring seat 7-1 is set to two pieces, valve core spring II 7-3 is provided with between two pieces of arm spring seats, arm spring seat 7-1 wherein one piece and L-type lever 6 offset, another block offsets with the one end of the pre-loading screw 7-5 be arranged in spool screw plug 7-4, and be provided with valve core spring I 7-2 between the arm spring seat 7-1 that L-type lever 6 offsets and spool screw plug 7-4, the other end of described pre-loading screw 7-5 extends spool screw plug 7-4, the part of extending is provided with hydraulic nut 7-6.
Described roller post mechanism 8 comprises the ball 8-1 offseted with L-type lever 6, described ball 8-1 is arranged on one end of push rod overcoat 8-2, the other end of described push rod overcoat 8-2 is fixed on little variable piston rod 9, is set with push rod 8-3 in described push rod overcoat 8-2.
Constant power control valve 5 mainly plays power limitation control, constant power control valve 5 is connected with the control oil duct of plunger pump by controlling oil duct, when load reaches the force value preset, enter the control oil of little variable piston cavity 10, pushing rolling wheels post mechanism 8, L-type lever 7 compression control valve 7, make constant power control valve 5 right position work, control oil enters large variable piston cavity 2 and impels swash plate 3 to swing, now pump delivery reduces, i.e. P
bincrease, V
greduce, thus realize driving power P
b* V
g=constant.Structure, the area of large variable piston cavity 2 is greater than the area of little variable piston cavity 10, thus realizes pump delivery from trend minimum change.
The beneficial effects of the utility model are the effects that can pump up power control by arranging constant power control valve 5 to plunger, and reach equalising torque optimize power curve by built-in L-type lever 6, roller post mechanism 8, make shaft orientation plunger variable pump have low pressure and mass flow, high-pressure low-flow, use drive motor power little, operate power factor is high, realize the advantages such as energy-conservation.
Claims (1)
1. inclined disc type axial variable plunger pump power controller, comprise the valve casing (4) be fixed on the pump housing (1), it is characterized in that be coaxially set on valve casing (4) power control valve (5) and control valve (7), one end of L-type lever (6) is arranged between power control valve (5) and control valve (7), the other end of described L-type lever (6) and one end of roller post mechanism (8) offset, the other end of roller post mechanism (8) is fixed on the little variable piston rod (9) in the pump housing (1), the middle part of described L-type lever (6) is rotatably mounted on valve casing (4).
2. inclined disc type axial variable plunger pump power controller according to claim 1, it is characterized in that described power control valve (5) comprises spool (5-4), the inner and the thimble (5-5) of described spool (5-4) offset, the outer end of spool (5-4) is provided with spring seat (5-3), and spring seat (5-3) is connected with the spool plug (5-1) be fixed on valve casing (4) by valve core spring (5-2).
3. inclined disc type axial variable plunger pump power controller according to claim 1, it is characterized in that control valve (7) comprises the spool screw plug (7-4) be fixed on valve casing (4), arm spring seat (7-1) is provided with in spool screw plug (7-4), described arm spring seat (7-1) is set to two pieces, valve core spring II (7-3) is provided with between two pieces of arm spring seats, arm spring seat (7-1) wherein one piece and L-type lever (6) offset, another block offsets with the one end of the pre-loading screw (7-5) be arranged in spool screw plug (7-4), and be provided with valve core spring I (7-2) between the arm spring seat (7-1) that L-type lever (6) offsets and spool screw plug (7-4), the other end of described pre-loading screw (7-5) extends spool screw plug (7-4), the part of extending is provided with hydraulic nut (7-6).
4. inclined disc type axial variable plunger pump power controller according to claim 1, it is characterized in that roller post mechanism (8) comprises the ball (8-1) offseted with L-type lever (6), described ball (8-1) is arranged on one end of push rod overcoat (8-2), the other end of described push rod overcoat (8-2) is fixed on little variable piston rod (9), is set with push rod (8-3) in described push rod overcoat (8-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520326633.1U CN204646619U (en) | 2015-05-20 | 2015-05-20 | Inclined disc type axial variable plunger pump power controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520326633.1U CN204646619U (en) | 2015-05-20 | 2015-05-20 | Inclined disc type axial variable plunger pump power controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204646619U true CN204646619U (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520326633.1U Active CN204646619U (en) | 2015-05-20 | 2015-05-20 | Inclined disc type axial variable plunger pump power controller |
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| CN (1) | CN204646619U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387307A (en) * | 2017-07-26 | 2017-11-24 | 徐州工业职业技术学院 | A kind of two-way displacement hydraulic motor with speed-limiting device |
| CN109281812A (en) * | 2018-11-22 | 2019-01-29 | 力源液压（苏州）有限公司 | A kind of plunger variable pump and its constant power control device |
| CN114165402A (en) * | 2021-12-02 | 2022-03-11 | 青岛力克川液压机械有限公司 | Constant power control device and method for plunger pump |
-
2015
- 2015-05-20 CN CN201520326633.1U patent/CN204646619U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387307A (en) * | 2017-07-26 | 2017-11-24 | 徐州工业职业技术学院 | A kind of two-way displacement hydraulic motor with speed-limiting device |
| CN107387307B (en) * | 2017-07-26 | 2018-11-06 | 徐州工业职业技术学院 | A kind of two-way displacement hydraulic motor with speed-limiting device |
| CN109281812A (en) * | 2018-11-22 | 2019-01-29 | 力源液压（苏州）有限公司 | A kind of plunger variable pump and its constant power control device |
| CN114165402A (en) * | 2021-12-02 | 2022-03-11 | 青岛力克川液压机械有限公司 | Constant power control device and method for plunger pump |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 272000 Shandong city of Jining province high tech Zone Haichuan Road No. 66 (Shandong Taifeng hydraulic Limited by Share Ltd) Patentee after: Shandong Taifeng intelligent control Limited by Share Ltd Address before: 272000 Shandong city of Jining province high tech Zone Haichuan Road No. 66 (Shandong Taifeng hydraulic Limited by Share Ltd) Patentee before: Shandong Taifeng Hydraulic Co., Ltd. |