CN201836136U - Flow adjusting mechanism of hydraulic pump - Google Patents
Flow adjusting mechanism of hydraulic pump Download PDFInfo
- Publication number
- CN201836136U CN201836136U CN 201020568219 CN201020568219U CN201836136U CN 201836136 U CN201836136 U CN 201836136U CN 201020568219 CN201020568219 CN 201020568219 CN 201020568219 U CN201020568219 U CN 201020568219U CN 201836136 U CN201836136 U CN 201836136U
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- CN
- China
- Prior art keywords
- connecting pin
- feedback
- connecting rod
- rod
- hydraulic pump
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- Expired - Fee Related
Links
- 230000000694 effects Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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Abstract
The utility model aims to provide a flow adjusting mechanism of a hydraulic pump, which is mainly composed of a reversing valve core, a feedback valve core, a feedback guide rod, a connecting pin A, a connecting pin B, a feedback connecting rod, a connecting rod, a connecting pin C, a connecting pin D, a connecting pin E and a control piston. The flow adjusting mechanism of the hydraulic pump is characterized in that: the feedback valve core is arranged in a matched valve bush, the feedback guide rod is arranged in a valve body guide hole and pushes against the feedback valve core under the action of a spring, the connecting pin B is fixed on the connecting rod, an extended part is inserted into an annular groove of the feedback guide rod in a linkage manner, the connecting pin D is fixed on a valve body, an extended part is inserted into a hole at the top part of the connecting rod, the connecting pin D serves as a pivot point of the connecting rod, the reversing valve core is arranged in the valve bush and is connected with the feedback connecting rod through the connecting pin E, the feedback connecting rod can rotate round the connecting pin E, the connecting pin C is fixed on the feedback connecting rod and an extended part is connected with a middle hole of the connecting rod.
Description
Technical field
The utility model relates to a kind of oil hydraulic pump flow control device, belongs to mechanical field.
Background technique
Oil hydraulic pump is a kind of energy conversion device, it converts the mechanical energy of power source output to the pressure energy of the fluid in the system of being passed to, use for system, in order to satisfy the multiple requirement that hydraulic system proposes oil sources, the stroking mechanism of pump can be made and make its output quantity (pressure, flow, power etc.) control by certain Changing Pattern, make the needs of the complete adaptive system operation of output quantity, oil hydraulic pump mainly contains constant voltage, the constant current amount, several Variable Control purposes such as permanent power, control mode mainly contains manual control, hydraulic control, several modes such as electrical control, the utility model is that a kind of permanent power is the novel control mechanism of purpose, utilize the pressure position signal of oil hydraulic pump output, regulate pump swash plate pivot angle by control valve, control the swash plate swash angle position by the lever linkage structure again, thereby realize permanent power output.
Summary of the invention
The utility model purpose is to provide a kind of oil hydraulic pump flow control device, mainly by changeover valve core (1), feedback spool (2), feedback guide rod (3), connecting pin A (4), connecting pin B (5), feedback linkage (6), connecting rod (7), connecting pin C (8), connecting pin D (9), connecting pin E (10), control piston (11) is formed, it is characterized in that: feedback spool (2) is installed in the coupling valve pocket, feedback guide rod (3) is installed in the valve body pilot hole, withstanding under the effect of spring on the feedback spool (2), connecting pin B (5) is fixed on the connecting rod (7), extension is inserted in the interior interlock of circular groove of feedback guide rod (3), connecting pin D (9) is fixed on the valve body, extension inserts in connecting rod (7) top-portion apertures, connecting pin D (9) is as a pivot point of connecting rod (7), changeover valve core (1) is installed in the valve pocket, be connected with feedback linkage (6) by connecting pin E (10), feedback linkage (6) can be around rotating by connecting pin E (10), connecting pin C (8) is fixed on the feedback linkage (6), and extension is connected with connecting rod (7) intermediate hole.
Because the utility model adopted said structure, optimized the form of the permanent power adjustments of oil hydraulic pump mechanism, variation that can rapid response pressure, controlled the output flow of pump cleverly by the lever linkage, simplify the structure, reduced cost, and improved the reliability of control.
Description of drawings
Accompanying drawing 1 is a kind of oil hydraulic pump flow control device structural representation.
Accompanying drawing 2 is a kind of oil hydraulic pump flow control device A-A sectional view.
Embodiment
Below in conjunction with accompanying drawing 1, the embodiment of 2 pairs of the utility model oil hydraulic pumps of accompanying drawing flow control device is further described: as delivery pressure P1, P2 rises, when P3 is constant, P1, P2 can affact on the feedback spool (2), it is moved right, promoting feedback guide rod (3) simultaneously moves right, when reaching balance, spring pressure and hydraulic fluid pressure stop to move, along with feedback guide rod (3) moves right, by be inserted in connecting pin B (5) in its groove stir connecting rod (7) around connecting pin D (9) to right rotation, connecting rod (7) utilizes its intermediate hole, driving feedback linkage (6) by connecting pin C (8) is the rotating center rotation with connecting pin A (4), rotation along with feedback linkage (6), drive changeover valve core (1) by connecting pin E (10) and move right, thereby make the selector valve commutation, realize the logical simultaneously pressure oil in control piston (11) two ends, because its both ends of the surface product moment, so control piston moves to small end, diminish thereby stir oil hydraulic pump swash plate pivot angle, realize that flow diminishes; Along with control piston (11) moves gradually to small end, connecting pin B (5) is because of pressure and spring balancing, no longer mobile, become fixed support, it is that rotating center is rotated counterclockwise with connecting pin B (5) that control piston (11) drives feedback linkage (6) by connecting pin A (4), promotes changeover valve core (1) by connecting pin E (10) and is moved to the left, the selector valve commutation, realize that control piston (11) two ends oil circuit disconnects, thereby stop to move that hydraulic pump discharge stops to change; Otherwise, as delivery pressure P1, when P2 descends, under the effect of spring force, feedback guide rod (3) is moved to the left, when reaching balance, spring pressure and hydraulic fluid pressure stop to move, along with feedback guide rod (3) is moved to the left, by be inserted in connecting pin B (5) in its groove stir connecting rod (7) around connecting pin D (9) to anticlockwise, connecting rod (7) utilizes its intermediate hole, driving feedback linkage (6) by connecting pin C (8) is the rotating center rotation with connecting pin A (4), along with the rotation of feedback linkage (6), drives changeover valve core (1) by connecting pin E (10) and is moved to the left, thereby make the selector valve commutation, realize the logical pressure oil of control piston (11) small end, the logical fuel tank of big end is so control piston (11) Xiang Daduan moves, become big thereby stir oil hydraulic pump swash plate pivot angle, realize that flow becomes big; Along with control piston (11) Xiang Daduan moves gradually, connecting pin B (5) is because of pressure and spring balancing, no longer mobile, become fixed support, it is that rotating center turns clockwise with connecting pin B (5) that control piston (11) drives feedback linkage (6) by connecting pin A (4), promotes changeover valve core (1) by connecting pin E (10) and moves right, the selector valve commutation, realize that control piston (11) two ends oil circuit disconnects, thereby stop to move that hydraulic pump discharge stops to change.
Claims (1)
1. oil hydraulic pump flow control device, mainly by changeover valve core (1), feedback spool (2), feedback guide rod (3), connecting pin A (4), connecting pin B (5), feedback linkage (6), connecting rod (7), connecting pin C (8), connecting pin D (9), connecting pin E (10), control piston (11) is formed, it is characterized in that: feedback spool (2) is installed in the coupling valve pocket, feedback guide rod (3) is installed in the valve body pilot hole, withstanding under the effect of spring on the feedback spool (2), connecting pin B (5) is fixed on the connecting rod (7), extension is inserted in the interior interlock of circular groove of feedback guide rod (3), connecting pin D (9) is fixed on the valve body, extension inserts in connecting rod (7) top-portion apertures, connecting pin D (9) is as a pivot point of connecting rod (7), changeover valve core (1) is installed in the valve pocket, be connected with feedback linkage (6) by connecting pin E (10), feedback linkage (6) can be around rotating by connecting pin E (10), connecting pin C (8) is fixed on the feedback linkage (6), and extension is connected with connecting rod (7) intermediate hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020568219 CN201836136U (en) | 2010-10-20 | 2010-10-20 | Flow adjusting mechanism of hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020568219 CN201836136U (en) | 2010-10-20 | 2010-10-20 | Flow adjusting mechanism of hydraulic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201836136U true CN201836136U (en) | 2011-05-18 |
Family
ID=44006240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020568219 Expired - Fee Related CN201836136U (en) | 2010-10-20 | 2010-10-20 | Flow adjusting mechanism of hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201836136U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358727A (en) * | 2014-10-23 | 2015-02-18 | 浙江赛克思液压有限公司 | Power control valve with negative flow control function for hydraulic pump |
| CN107781126A (en) * | 2017-11-22 | 2018-03-09 | 江苏恒立液压科技有限公司 | Hydraulic pump control valve |
-
2010
- 2010-10-20 CN CN 201020568219 patent/CN201836136U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358727A (en) * | 2014-10-23 | 2015-02-18 | 浙江赛克思液压有限公司 | Power control valve with negative flow control function for hydraulic pump |
| CN104358727B (en) * | 2014-10-23 | 2016-08-24 | 浙江赛克思液压有限公司 | A kind of power control valve of the band inverted flux control for hydraulic pump |
| CN107781126A (en) * | 2017-11-22 | 2018-03-09 | 江苏恒立液压科技有限公司 | Hydraulic pump control valve |
| CN107781126B (en) * | 2017-11-22 | 2023-12-05 | 江苏恒立液压科技有限公司 | Hydraulic pump control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20160722 Granted publication date: 20110518 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| DD01 | Delivery of document by public notice |
Addressee: Shandong Changlin Machinery Group Co., Ltd. Document name: Notice of preservation procedure |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Shandong Changlin Machinery Group Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200722 Granted publication date: 20110518 |
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| PD01 | Discharge of preservation of patent | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20200722 Granted publication date: 20110518 |
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| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20201020 Granted publication date: 20110518 |
|
| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20171020 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |