CN220726504U - Single-cylinder displacement pump with cylindrical cam - Google Patents
Single-cylinder displacement pump with cylindrical cam Download PDFInfo
- Publication number
- CN220726504U CN220726504U CN202322500631.7U CN202322500631U CN220726504U CN 220726504 U CN220726504 U CN 220726504U CN 202322500631 U CN202322500631 U CN 202322500631U CN 220726504 U CN220726504 U CN 220726504U
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- Prior art keywords
- pump
- cylindrical cam
- cylinder displacement
- displacement pump
- pump body
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 12
- 238000005096 rolling process Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- Reciprocating Pumps (AREA)
Abstract
The utility model relates to a single-cylinder displacement pump with a cylindrical cam, and belongs to the technical field of experimental pump equipment. The single-cylinder displacement pump with the cylindrical cam comprises a mounting frame, a servo motor, a speed reducer, the cylindrical cam, a pump body and a pump cover; the mounting frame is provided with a cylindrical cam through a servo motor and a speed reducer; a pump body is arranged on the mounting frame at one side of the servo motor; the upper end of the pump body is provided with a pump cover; the lower end of the pump body is provided with a pump seat; a piston rod is arranged in the pump body; the lower end of the piston rod passes through the pump seat and is provided with a connecting seat; one side of the connecting seat is provided with a transmission bearing; the transmission bearing is in rolling connection with the cylindrical cam. The single-cylinder displacement pump with the cylindrical cam has the advantages of compact structure and ingenious design, and can achieve the purpose of normal operation without the forward and reverse rotation of a motor, so that the problem that the existing displacement pump has frequent faults caused by long-time forward and reverse rotation of the motor is solved, and the use requirement of enterprises is met.
Description
Technical Field
The utility model relates to a single-cylinder displacement pump with a cylindrical cam, and belongs to the technical field of experimental pump equipment.
Background
Displacement pumps are a device used in oil exploration and development and have a variety of experimental uses. The method mainly comprises a core displacement experiment, related work, precision and pulse-free fluid experiments and the like. The device can be combined into a system of 1 to a plurality of cylinder bodies according to experimental requirements, has the characteristics of high precision and no pulsation, can meet the requirements of different precision experiments, and is widely applied in petroleum industry and related research fields.
A conventional displacement pump is disclosed in the patent application of the utility model with the application publication number of CN106246496a, and the core displacement pump can meet the use requirement to a certain extent, but the technical scheme that the piston rod is driven to move by the forward and reverse rotation of the screw rod. The motor has the problem of frequent faults caused by extremely easy damage during long-time positive and negative rotation, so that a new displacement pump is necessary to be developed to solve the problems existing in the existing displacement pump.
Disclosure of Invention
The utility model aims at: the single-cylinder displacement pump with the cylindrical cam is compact in structure and ingenious in design, and solves the problem that the existing displacement pump is frequently failed due to long-time positive and negative rotation of a motor.
The technical scheme of the utility model is as follows:
a single-cylinder displacement pump with a cylindrical cam comprises a mounting frame, a servo motor, a speed reducer, the cylindrical cam, a pump body and a pump cover; the method is characterized in that: the mounting frame is provided with a cylindrical cam through a servo motor and a speed reducer; a pump body is arranged on the mounting frame at one side of the servo motor; the upper end of the pump body is provided with a pump cover; the lower end of the pump body is provided with a pump seat; a piston rod is arranged in the pump body; the lower end of the piston rod passes through the pump seat and is provided with a connecting seat; one side of the connecting seat is provided with a transmission bearing; the transmission bearing is in rolling connection with the cylindrical cam.
The periphery of the cylindrical cam is provided with an annular driving ring groove; the driving ring groove is in rolling connection with the transmission bearing.
The driving ring groove is in a positive rotation line structure after being unfolded.
The top of the pump cover is provided with a low-pressure liquid suction port, and the side surface of the pump cover is provided with a high-pressure liquid discharge port.
And a plurality of groups of Gray sealing rings are arranged between the pump seat and the piston rod.
The utility model has the advantages that:
the single-cylinder displacement pump with the cylindrical cam has the advantages of compact structure and ingenious design, and can achieve the purpose of normal operation without the forward and reverse rotation of a motor, so that the problem that the existing displacement pump has frequent faults caused by long-time forward and reverse rotation of the motor is solved, and the use requirement of enterprises is met.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the servo motor, speed reducer and cylindrical cam of the present utility model;
FIG. 3 is a schematic view of the pump body of the present utility model;
FIG. 4 is a schematic cross-sectional view of FIG. 3;
fig. 5 is an enlarged schematic view of the structure at a in fig. 4.
In the figure: 1. a mounting frame; 2. a servo motor; 3. a speed reducer; 4. a cylindrical cam; 5. a pump body; 6. a pump cover; 7. a pump base; 8. a piston rod; 9. a connecting seat; 10. a transmission bearing; 11. driving the ring groove; 12. a low pressure liquid suction port; 13. a high-pressure liquid discharge port; 14. and (5) a Gray sealing ring.
Detailed Description
The single-cylinder displacement pump with the cylindrical cam comprises a mounting frame 1, a servo motor 2, a speed reducer 3, the cylindrical cam 4, a pump body 5 and a pump cover 6 (see the attached figure 1 in the specification).
The mounting frame 1 is provided with a cylindrical cam 4 (see figure 1 of the specification) through a servo motor 2 and a speed reducer 3. When the servo motor 2 works, the cylindrical cam 4 can be driven to synchronously rotate through the speed reducer 3.
A driving ring groove 11 with a ring shape is arranged on the circumferential surface of the cylindrical cam 4; the driving ring groove 11 is unfolded to be in a positive rotation line structure (see figure 2 of the specification).
A pump body 5 is arranged on the mounting frame 1 at one side of the servo motor 2; the upper end of the pump body 5 is provided with a pump cover 6 (see fig. 3, 4 and 5 of the specification). A sealing ring (not shown in the drawing of the specification) is arranged between the pump cover 6 and the pump body 5. The top of the pump cover 6 is provided with a low-pressure liquid suction port 12, and the side surface is provided with a high-pressure liquid discharge port 13 (see fig. 5 of the specification).
The lower end of the pump body 5 is provided with a pump seat 7; the pump body 5 is internally provided with a piston rod 8 (see fig. 4 of the description). The piston rod 8 can only slide up and down inside the pump body 5 without rotating when being stressed.
A plurality of groups of gray sealing rings 14 (see figure 4 of the specification) are arranged between the pump seat 7 and the piston rod 8. The piston rod 8 is in sealing sliding connection with the pump seat 7 via a sealing ring 14. The lower end of the piston rod 8 passes through the pump seat 7 and is provided with a connecting seat 9; one side of the connecting seat 9 is provided with a transmission bearing 10. The transmission bearing 10 is in rolling connection with a drive ring groove 11 of the cylindrical cam 4 (see fig. 1 of the description).
The single-cylinder displacement pump with the cylindrical cam can drive the cylindrical cam 4 to synchronously rotate in the same direction through the speed reducer 3 when the servo motor 2 works. In the process of rotating the cylindrical cam 4, the cylindrical cam 4 can drive the piston rod 8 to move up and down through the driving ring groove 11 and the transmission bearing 10.
The single-cylinder displacement pump with the cylindrical cam is compact in structure and ingenious in design, and can achieve the purpose of normal operation without forward and reverse rotation of a motor. In addition, the cylindrical cam 4 can control the back and forth motion of the piston rod 8 through the driving ring groove 11, and the curve of the driving ring groove 11 is unchanged, so that the back and forth motion stroke of the piston rod 8 is fixed and excessive motion can not be generated, and the problem that the screw rod of the existing displacement pump is easy to excessively rotate during working is solved. Therefore, the single-cylinder displacement pump solves the problem that the existing displacement pump has frequent faults caused by long-time positive and negative rotation of the motor, and meets the use requirements of enterprises.
Claims (5)
1. A single-cylinder displacement pump with a cylindrical cam comprises a mounting frame (1), a servo motor (2), a speed reducer (3), a cylindrical cam (4), a pump body (5) and a pump cover (6); the method is characterized in that: a cylindrical cam (4) is arranged on the mounting frame (1) through a servo motor (2) and a speed reducer (3); a pump body (5) is arranged on the mounting frame (1) at one side of the servo motor (2); the upper end of the pump body (5) is provided with a pump cover (6); the lower end of the pump body (5) is provided with a pump seat (7); a piston rod (8) is arranged in the pump body (5); the lower end of the piston rod (8) passes through the pump seat (7) and is provided with a connecting seat (9); one side of the connecting seat (9) is provided with a transmission bearing (10); the transmission bearing (10) is in rolling connection with the cylindrical cam (4).
2. A single cylinder displacement pump with cylindrical cam as claimed in claim 1, wherein: the periphery of the cylindrical cam (4) is provided with an annular driving ring groove (11); the driving ring groove (11) is in rolling connection with the transmission bearing (10).
3. A single cylinder displacement pump with cylindrical cam as claimed in claim 2, wherein: the driving ring groove (11) is in a positive rotation line structure after being unfolded.
4. A single cylinder displacement pump with cylindrical cam as claimed in claim 1, wherein: the top of the pump cover (6) is provided with a low-pressure liquid suction port (12), and the side surface of the pump cover is provided with a high-pressure liquid discharge port (13).
5. A single cylinder displacement pump with cylindrical cam as claimed in claim 1, wherein: a plurality of groups of Gray sealing rings (14) are arranged between the pump seat (7) and the piston rod (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322500631.7U CN220726504U (en) | 2023-09-14 | 2023-09-14 | Single-cylinder displacement pump with cylindrical cam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322500631.7U CN220726504U (en) | 2023-09-14 | 2023-09-14 | Single-cylinder displacement pump with cylindrical cam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220726504U true CN220726504U (en) | 2024-04-05 |
Family
ID=90488136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322500631.7U Active CN220726504U (en) | 2023-09-14 | 2023-09-14 | Single-cylinder displacement pump with cylindrical cam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220726504U (en) |
-
2023
- 2023-09-14 CN CN202322500631.7U patent/CN220726504U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |