CN115681065B - Hydraulic pump with output flow control function - Google Patents
Hydraulic pump with output flow control function Download PDFInfo
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- CN115681065B CN115681065B CN202310005270.0A CN202310005270A CN115681065B CN 115681065 B CN115681065 B CN 115681065B CN 202310005270 A CN202310005270 A CN 202310005270A CN 115681065 B CN115681065 B CN 115681065B
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- seat
- plunger pump
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Abstract
The invention provides a hydraulic pump with an output flow control function, and relates to the technical field of hydraulic pumps. This hydraulic pump, including base and connecting seat, the top fixedly connected with connecting seat of base, the top fixedly connected with plunger pump main part of connecting seat, the one end center department of plunger pump main part is provided with the power shaft, the one end fixedly connected with shaft coupling of plunger pump main part is kept away from to the power shaft, the top fixedly connected with adjusting cap of plunger pump main part, the one end fixedly connected with feed liquor valve of power shaft is kept away from to the below of plunger pump main part. The invention is provided with the regulating valve and the regulating oil cylinder, is matched with the regulating seat and the regulating spring, can be communicated with the liquid outlet valve through the regulating valve and the regulating oil cylinder, utilizes the balance of the output pressure and the regulating spring, and when the output pressure changes, the balance point of the regulating spring changes, the position of the regulating seat changes, so that the angle of the inclined plate frame changes, and further, the output flow is automatically regulated.
Description
Technical Field
The invention relates to the technical field of hydraulic pumps, in particular to a hydraulic pump with an output flow control function.
Background
The hydraulic pump is a power element of a hydraulic system, and is an element which is driven by an engine or an electric motor, sucks oil from a hydraulic oil tank, forms pressure oil, discharges the pressure oil and sends the pressure oil to an execution element. The hydraulic pump is divided into a gear pump, a plunger pump, a vane pump and a screw pump according to the structure.
The plunger pump generally carries out output flow control by adjusting the swash plate angle and controlling the plunger stroke, but the inclination angle of swash plate generally adopts manual servo valve to adjust, though can satisfy the operation requirement to a certain extent, but has the defect that manual operation is complicated, and control accuracy is not high, and generally can not carry out automatically regulated according to output pressure.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a hydraulic pump with an output flow control function, and solves the problems that the manual operation is complex, the control precision is not high, and the automatic adjustment cannot be generally carried out according to the output pressure, and the stable control capability of the output flow is self-compensated.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a hydraulic pump with an output flow control function comprises a base and a connecting seat, wherein the connecting seat is fixedly connected above the base, a plunger pump main body is fixedly connected above the connecting seat, a power shaft is arranged at the center of one end of the plunger pump main body, a coupler is fixedly connected at one end, away from the plunger pump main body, of the power shaft, an adjusting cover is fixedly connected above the plunger pump main body, a liquid inlet valve is fixedly connected at one end, away from the power shaft, of the plunger pump main body, a liquid inlet pipe is fixedly connected at one end, away from the power shaft, of the liquid inlet valve, a liquid outlet valve is fixedly connected at one end, away from the power shaft, of the adjusting cover, and a liquid outlet pipe is fixedly communicated at one end, away from the power shaft, of the liquid outlet valve;
the inner part of the adjusting cover close to one end of the liquid outlet valve is fixedly connected with an adjusting valve, one end of the adjusting valve far away from the liquid outlet valve is fixedly communicated with an adjusting oil cylinder, the inner part of the adjusting oil cylinder is connected with an adjusting piston in a sliding manner, the center of one end of the adjusting piston far away from the liquid outlet valve is fixedly connected with a piston rod, one end of the piston rod far away from the adjusting piston is fixedly connected with an adjusting seat, the upper end and the lower end of two sides of the adjusting seat are fixedly connected with two sliding blocks, the inner walls of two sides of the adjusting cover and the positions of the sliding blocks on two sides of the adjusting seat corresponding to each other are fixedly connected with limiting sliding grooves, the middle part of the adjusting seat is connected with a sliding rod in a sliding manner, and the bottom of the sliding rod is rotatably connected with a bevel disk frame;
the one end fixedly connected with adjusting spring that the piston rod was kept away from to the regulation seat, the one end fixedly connected with spring holder of regulation seat is kept away from to adjusting spring, adjusting spring's one end fixedly connected with threaded rod is kept away from to the spring holder, the spacing groove has all been seted up to the both sides of threaded rod, the one end fixedly connected with adjusting motor who goes out the liquid valve is kept away from to adjusting motor, adjusting motor keeps away from the one end fixedly connected with reduction gear of liquid valve, adjusting motor's one end fixedly connected with gear drive is kept away from to the reduction gear, the below fixedly connected with nut cover of gear drive, the inside rotation of nut cover is connected with the adjusting nut corresponding with the threaded rod, one side center department fixedly connected with spacing ring that adjusting motor was kept away from to the nut cover.
Preferably, the limiting ring comprises a ring sleeve main body, fixing screw holes and limiting blocks, the fixing screw holes are formed in the middle of the upper end and the lower end of the ring sleeve main body, the limiting blocks are fixedly connected to the two sides of the ring sleeve main body and the positions corresponding to the limiting grooves, and the limiting blocks are connected with the threaded rods in a sliding mode through the corresponding limiting grooves.
Preferably, the valve post top fixedly connected with adjusting handle of governing valve, the inlet and the play liquid valve fixed intercommunication of governing valve.
Preferably, the threaded rod passes through and is in threaded engagement with an adjustment nut.
Preferably, the output end of the adjusting motor is in transmission connection with the adjusting nut through a speed reducer and a gear driver.
Preferably, the positions of the two sides of the spring seat corresponding to the sliding block are provided with lugs matched with the limiting sliding grooves.
The working principle is as follows: when the automatic output flow regulating device is used, the regulating valve and the regulating oil cylinder are arranged, the regulating seat and the regulating spring are matched, the regulating valve and the regulating oil cylinder can be communicated with the liquid outlet valve, the output pressure and the regulating spring are balanced, when the output pressure changes, the balance point of the regulating seat and the regulating spring changes, so that the position of the regulating seat changes, the angle of the inclined plate frame changes, and further the output flow can be automatically regulated.
(III) advantageous effects
The invention provides a hydraulic pump with an output flow control function. The method has the following beneficial effects:
1. the invention is provided with the regulating valve and the regulating oil cylinder, is matched with the regulating seat and the regulating spring, can be communicated with the liquid outlet valve through the regulating valve and the regulating oil cylinder, utilizes the balance of the output pressure and the regulating spring, and when the output pressure changes, the balance point of the regulating spring changes, so that the position of the regulating seat changes, the angle of the inclined plate frame changes, and further, the output flow can be automatically regulated.
2. The invention is provided with the threaded rod and the limiting groove, and is matched with the adjusting motor, the adjusting nut and the limiting ring, the adjusting motor can be used for driving the adjusting nut to rotate, so that the threaded rod can displace, the compression degree of the spring is adjusted by adjusting the position of the spring seat, the position of the balance point of the spring and the adjusting spring under the same output pressure is adjusted, and further, the output flow is adjusted and controlled under the condition of not influencing the automatic adjustment of the output flow, and the practicability of the invention is enhanced.
Drawings
FIG. 1 is a schematic front perspective view of the present invention;
FIG. 2 is a schematic rear perspective view of the present invention;
FIG. 3 is a schematic side view of the present invention;
FIG. 4 is a schematic view of the inner structure of the adjusting cover of the present invention;
FIG. 5 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;
wherein, 1, a base; 2. a connecting seat; 3. a plunger pump body; 4. a power shaft; 5. a coupling; 6. an adjusting cover; 7. a liquid inlet valve; 8. a liquid inlet pipe; 9. a liquid outlet valve; 10. a liquid outlet pipe; 11. adjusting a valve; 12. adjusting a hand wheel; 13. adjusting the oil cylinder; 14. an adjusting piston; 15. a piston rod; 16. an adjusting seat; 17. a slider; 18. a limiting chute; 19. a slide bar; 20. a swash plate frame; 21. adjusting the spring; 22. a spring seat; 23. a threaded rod; 24. a limiting groove; 25. adjusting the motor; 26. a speed reducer; 27. a gear driver; 28. a nut sleeve; 29. a limiting ring; 291. a loop body; 292. fixing screw holes; 293. and a limiting block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example (b):
as shown in fig. 1-5, an embodiment of the present invention provides a hydraulic pump with an output flow control function, including a base 1 and a connecting seat 2, the connecting seat 2 is fixedly connected above the base 1, a plunger pump main body 3 is fixedly connected above the connecting seat 2, a power shaft 4 is arranged at a center of one end of the plunger pump main body 3, a coupler 5 is fixedly connected to one end of the power shaft 4 away from the plunger pump main body 3, an adjusting cover 6 is fixedly connected above the plunger pump main body 3, a liquid inlet valve 7 is fixedly connected to one end of the plunger pump main body 3 below away from the power shaft 4, a liquid inlet pipe 8 is fixedly connected to one end of the liquid inlet valve 7 away from the power shaft 4, a liquid outlet valve 9 is fixedly connected to one end of the adjusting cover 6 away from the power shaft 4, and a liquid outlet pipe 10 is fixedly communicated to one end of the liquid outlet valve 9 away from the power shaft 4;
an adjusting valve 11 is fixedly connected at one end of the inner part of the adjusting cover 6 close to the liquid outlet valve 9, an adjusting hand wheel 12 is fixedly connected above a valve column of the adjusting valve 11, a liquid inlet of the adjusting valve 11 is fixedly communicated with the liquid outlet valve 9, an adjusting oil cylinder 13 is fixedly communicated with one end of the adjusting valve 11 far away from the liquid outlet valve 9, an adjusting piston 14 is slidably connected in the adjusting oil cylinder 13, a piston rod 15 is fixedly connected at the center of one end of the adjusting piston 14 far away from the liquid outlet valve 9, an adjusting seat 16 is fixedly connected at one end of the piston rod 15 far away from the adjusting piston 14, an adjusting spring 21 is fixedly connected at one end of the adjusting seat 16 far away from the piston rod 15, and two sliders 17 are fixedly connected at the upper end and the lower end of the two sides of the adjusting seat 16, the positions of the inner walls of the two sides of the adjusting cover 6, which correspond to the sliding blocks 17 of the two sides of the adjusting seat 16, are fixedly connected with limiting sliding chutes 18, the middle part of the adjusting seat 16 is connected with a sliding rod 19 in a vertical sliding manner, and the bottom of the sliding rod 19 is rotatably connected with a tilting tray frame 20;
a spring seat 22 is fixedly connected to one end of the adjusting spring 21 far away from the adjusting seat 16, a position corresponding to the slide block 17 on both sides of the spring seat 22 is provided with a convex block adapted to the limiting slide groove 18, a threaded rod 23 is fixedly connected to one end of the spring seat 22 far away from the adjusting spring 21, a limiting groove 24 is formed on both sides of the threaded rod 23, an adjusting motor 25 is fixedly connected to one end of the adjusting cover 6 far away from the liquid outlet valve 9, a reducer 26 is fixedly connected to one end of the adjusting motor 25 far away from the liquid outlet valve 9, a gear 27 driver is fixedly connected to one end of the reducer 26 far away from the adjusting motor 25, a nut sleeve 28 is fixedly connected below the gear driver 27, an adjusting nut corresponding to the threaded rod 23 is rotatably connected to the inside of the nut sleeve 28, the threaded rod 23 passes through the adjusting nut and is in threaded fit with the adjusting nut, and an output end of the adjusting motor 25 is in transmission connection with the adjusting nut through the reducer 26 and the gear driver 27, the nut sleeve 28 is fixedly connected with a limiting ring 29 at the center of one side far away from the adjusting motor 25, the limiting ring 29 comprises a ring sleeve main body 291, a fixing screw hole 292 and a limiting block 293, the middle parts of the upper and lower ends of the ring sleeve main body 291 are respectively provided with the fixing screw hole 292, the positions of the two sides of the ring sleeve main body 291 corresponding to the limiting groove 24 are respectively fixedly connected with the limiting block 293, and the two limiting blocks 293 are respectively connected with the threaded rod 23 in a sliding way through the corresponding limiting groove 24, the threaded rod 23 and the limiting groove 24 are arranged in the invention, the adjusting motor 25, the adjusting nut and the limiting ring 29 are matched, the adjusting motor 25 can be used for driving the adjusting nut to rotate, so that the threaded rod 23 is displaced, the position of a balance point with the adjusting spring 21 under the same output pressure is adjusted through the compression degree of the position adjusting spring of the spring seat 22, and further under the condition of not influencing the automatic adjustment of output flow, the output flow is adjusted and controlled, so that the practicability of the invention is enhanced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a hydraulic pump with output flow control function, includes base (1) and connecting seat (2), its characterized in that: the plunger pump is characterized in that a connecting seat (2) is fixedly connected to the upper portion of the base (1), a plunger pump main body (3) is fixedly connected to the upper portion of the connecting seat (2), a power shaft (4) is arranged at the center of one end of the plunger pump main body (3), a coupler (5) is fixedly connected to one end, far away from the plunger pump main body (3), of the power shaft (4), an adjusting cover (6) is fixedly connected to the upper portion of the plunger pump main body (3), a liquid inlet valve (7) is fixedly connected to one end, far away from the power shaft (4), of the lower portion of the plunger pump main body (3), a liquid inlet pipe (8) is fixedly connected to one end, far away from the power shaft (4), of the liquid inlet valve (7), a liquid outlet valve (9) is fixedly connected to one end, far away from the power shaft (4), of the inner portion of the adjusting cover (6), and a liquid outlet pipe (10) is fixedly communicated to one end, far away from the power shaft (4), of the liquid outlet valve (9);
one end, close to the liquid outlet valve (9), of the inner portion of the adjusting cover (6) is fixedly connected with an adjusting valve (11), one end, far away from the liquid outlet valve (9), of the adjusting valve (11) is fixedly communicated with an adjusting oil cylinder (13), the inner portion of the adjusting oil cylinder (13) is connected with an adjusting piston (14) in a sliding mode, a piston rod (15) is fixedly connected with the center of one end, far away from the liquid outlet valve (9), of the adjusting piston (14), one end, far away from the adjusting piston (14), of the piston rod (15) is fixedly connected with an adjusting seat (16), the upper end and the lower end of each of two sides of the adjusting seat (16) are fixedly connected with two sliding blocks (17), the inner walls of two sides of the adjusting cover (6) and the positions, corresponding to the sliding blocks (17) on the two sides of the adjusting seat (16), are fixedly connected with limiting sliding chutes (18), the middle portion of the adjusting seat (16) is vertically connected with sliding rods (19) in a sliding mode, and the bottom of the sliding rods (19) is rotatably connected with an inclined disc frame (20);
one end fixedly connected with regulating spring (21) of piston rod (15) is kept away from in regulation seat (16), regulating spring (21) keep away from one end fixedly connected with spring holder (22) of regulation seat (16), one end fixedly connected with threaded rod (23) of regulating spring (21) are kept away from in spring holder (22), spacing groove (24) have all been seted up to the both sides of threaded rod (23), one end fixedly connected with adjusting motor (25) of liquid valve (9) are kept away from to the top of adjusting lid (6), one end fixedly connected with reduction gear (26) of liquid valve (9) are kept away from in adjusting motor (25), one end fixedly connected with gear driver (27) of adjusting motor (25) are kept away from in reduction gear (26), the below fixedly connected with nut cover (28) of gear driver (27), the internal rotation of nut cover (28) is connected with the adjusting nut corresponding with threaded rod (23), one side center department fixedly connected with spacing ring (29) that adjusting motor (25) were kept away from to nut cover (28).
2. A hydraulic pump having an output flow control function according to claim 1, characterized in that: spacing ring (29) are including ring cover main part (291), fixed screw (292) and stopper (293), fixed screw (292) have all been seted up at the upper and lower both ends middle part of ring cover main part (291), the both sides of ring cover main part (291) and the equal fixedly connected with stopper (293) of position department corresponding in spacing groove (24), two stopper (293) all through corresponding spacing groove (24) and threaded rod (23) sliding connection.
3. A hydraulic pump having an output flow control function according to claim 1, characterized in that: the valve rod top fixedly connected with adjusting handle (12) of governing valve (11), the inlet and the play liquid valve (9) fixed intercommunication of governing valve (11).
4. A hydraulic pump having an output flow control function according to claim 1, characterized in that: the threaded rod (23) passes through the adjusting nut and is in threaded fit with the adjusting nut.
5. A hydraulic pump having an output flow control function according to claim 1, characterized in that: the output end of the adjusting motor (25) is in transmission connection with the adjusting nut through a speed reducer (26) and a gear driver (27).
6. A hydraulic pump having an output flow control function according to claim 1, characterized in that: the positions of the two sides of the spring seat (22) corresponding to the sliding block (17) are provided with convex blocks matched with the limiting sliding grooves (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310005270.0A CN115681065B (en) | 2023-01-04 | 2023-01-04 | Hydraulic pump with output flow control function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310005270.0A CN115681065B (en) | 2023-01-04 | 2023-01-04 | Hydraulic pump with output flow control function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115681065A CN115681065A (en) | 2023-02-03 |
| CN115681065B true CN115681065B (en) | 2023-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310005270.0A Active CN115681065B (en) | 2023-01-04 | 2023-01-04 | Hydraulic pump with output flow control function |
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| Country | Link |
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| CN (1) | CN115681065B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH274600A (en) * | 1946-08-24 | 1951-04-15 | Older Jakobsen Svend | Fuel pump. |
| CN1050756A (en) * | 1989-09-25 | 1991-04-17 | 维克斯公司 | Power transmission |
| CN202187894U (en) * | 2011-07-08 | 2012-04-11 | 邢台钢铁有限责任公司 | Plunger pump with an automatic flow adjusting device |
-
2023
- 2023-01-04 CN CN202310005270.0A patent/CN115681065B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH274600A (en) * | 1946-08-24 | 1951-04-15 | Older Jakobsen Svend | Fuel pump. |
| CN1050756A (en) * | 1989-09-25 | 1991-04-17 | 维克斯公司 | Power transmission |
| CN202187894U (en) * | 2011-07-08 | 2012-04-11 | 邢台钢铁有限责任公司 | Plunger pump with an automatic flow adjusting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115681065A (en) | 2023-02-03 |
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