Oil collecting device for fluid end of plunger pump

Abstract

The utility model provides an oil collecting device for a fluid end of a plunger pump, which relates to the technical field of plunger pumps and comprises a mounting frame, a moving mechanism is arranged in the mounting frame, an oil collecting cavity is mounted on the inner side of the mounting frame, a discharge port is mounted at one end of the bottom of the oil collecting cavity, a scraping mechanism is arranged in the oil collecting cavity, and a discharge port is mounted at the other end of the bottom of the oil collecting cavity. A plurality of connecting columns are mounted at the top end of the mounting frame; a scraping mechanism is arranged in an oil collecting cavity, a scraping plate, a mounting cavity, a first servo motor, a threaded sleeve, a threaded block, a transmission rod, a limiting block, a limiting groove, a positioning block and a positioning groove of the scraping mechanism are matched with one another, the scraping plate can be driven to move in the oil collecting cavity, and lubricating grease of waste gas attached to the inner wall of the oil collecting cavity is scraped through the scraping plate; and then the lubricating grease is pushed to the position above the discharging opening, the lubricating grease in the grease collecting cavity can be automatically and efficiently discharged, and therefore the using convenience of the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plunger pumps, in particular to an oil collecting device at the hydraulic end of a plunger pump. Background Art

[0002] With the development of economy and the continuous improvement of science and technology, my country's machinery industry has developed very rapidly. Plunger pumps are used more and more in daily production and life. Plunger pumps are generally composed of two parts: the power end and the hydraulic end. The function of the power end is to transfer the energy of the power system to the hydraulic end. The hydraulic end is used to transport liquid and convert mechanical energy into hydraulic energy. When the hydraulic end is in use, an oil collection device is required to collect the waste grease.

[0003] For example, application number CN219139339U discloses "an oil collecting device for the hydraulic end of a plunger pump and a plunger pump" and specifically discloses: the oil collecting box is used to be arranged below the hydraulic end of the plunger pump, the open end of the oil collecting box faces the hydraulic end, the oil collecting box is slidably installed on the fixed slide rail structure, and the oil collecting box is used to move along the slide rail structure. However, in the above technology, when cleaning the docking oil box, the staff needs to manually pull the scraper to clean the grease, which is inconvenient to automatically clean the grease inside the docking oil box, thereby reducing the convenience of the device when in use. Therefore, the utility model proposes an oil collecting device for the hydraulic end of a plunger pump to solve the above problems. Utility Model Content

[0004] In view of the above problems, the utility model proposes an oil collecting device for the hydraulic end of a plunger pump, which solves the problem in the above technology that the staff needs to manually pull the scraper to clean the grease, which makes it inconvenient to automatically clean the grease inside the oil box, thereby reducing the convenience of the device when in use.

[0005] To achieve the purpose of the utility model, the utility model is implemented by the following technical solutions: an oil collecting device at the hydraulic end of a plunger pump, comprising a mounting frame, a moving mechanism is arranged inside the mounting frame, an oil collecting chamber is arranged inside the mounting frame, a material discharge port is arranged at one end of the bottom of the oil collecting chamber, a scraping mechanism is arranged inside the oil collecting chamber, and a plurality of connecting columns are arranged at the top of the mounting frame;

[0006] The scraper mechanism includes a scraper, a mounting chamber, a first servo motor, a threaded sleeve, a threaded block, a transmission rod and a limiting structure, the scraper is installed at one end inside the oil collecting chamber, the mounting chamber is installed at one end of the oil collecting chamber, a first servo motor is installed at one end of the mounting chamber, a threaded sleeve is installed inside the mounting chamber, an output end of the first servo motor is connected to one end of the threaded sleeve, a threaded block is provided inside the threaded sleeve, a transmission rod is installed at one end of the threaded block, one end of the transmission rod extends to the inside of the oil collecting chamber, and one end of the transmission rod is connected to one end of the scraper.

[0007] Further improvements are: the limiting structure includes a limiting block, a limiting groove, a positioning block and a positioning groove, the limiting blocks are installed at both ends of one side of the installation cavity, the limiting groove is opened on both sides of the transmission rod, one end of the limiting block extends to the inside of the limiting groove, the positioning groove is opened on the outer wall of the threaded sleeve, a positioning block is arranged inside the positioning groove, and one end of the positioning block is connected to the inner wall of the installation cavity.

[0008] A further improvement is that the inner diameter of the positioning groove is larger than the outer diameter of the positioning block, and a rotating structure is formed between the positioning block and the positioning groove.

[0009] A further improvement is that the outer side of the scraper and the inner side of the oil collecting chamber fit each other, and the cross-sections of the oil collecting chamber and the scraper are both convex in design.

[0010] Further improvement is that: the moving mechanism includes a second servo motor, a threaded rod, a screw sleeve and a guide structure, the second servo motor is installed on one side of the mounting frame, the threaded rod is installed at one end inside the mounting frame, the output end of the second servo motor is connected to one end of the threaded rod, the outer side wall of the threaded rod is provided with a screw sleeve, and one end of the screw sleeve is connected to one end of the oil collecting chamber.

[0011] A further improvement is that the guide structure includes a guide groove and a guide block, the guide groove is opened on the other side of the mounting frame, a guide block is arranged inside the guide groove, and one end of the guide block is connected to one end of the oil collecting chamber.

[0012] The beneficial effects of the utility model are as follows: a scraper mechanism is provided inside the oil collecting chamber, and the scraper, mounting chamber, first servo motor, threaded sleeve, threaded block, transmission rod, limit block, limit groove, positioning block and positioning groove of the scraper mechanism are used to cooperate with each other, so that the scraper can be driven to move inside the oil collecting chamber, and the grease of the exhaust gas attached to the inner wall of the oil collecting chamber is scraped by the scraper, and then pushed to the top of the discharge port, so that the grease inside the oil collecting chamber can be automatically and efficiently discharged, thereby greatly improving the convenience of the device when in use; a moving mechanism is provided inside the mounting frame, and the oil collecting chamber can be driven to move by the cooperation between the second servo motor, threaded rod, threaded sleeve, guide groove and guide block of the moving mechanism, so that the oil collecting chamber can move on the inner side of the mounting frame, and after long-term use, the staff can manually clean the oil collecting chamber, so that the effect of the oil collecting chamber when in use is better, thereby greatly improving the practicality of the device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the overall structure of the mobile mechanism of the utility model;

[0015] Figure 3 This is a schematic diagram of the overall structure of the scraping mechanism of the utility model;

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure of the scraper mechanism of the utility model from top view.

[0017] Among them: 1. mounting frame; 2. oil collecting chamber; 3. material discharge port; 4. scraper; 5. mounting chamber; 6. first servo motor; 7. threaded sleeve; 8. threaded block; 9. transmission rod; 10. limit block; 11. limit groove; 12. positioning block; 13. positioning groove; 14. second servo motor; 15. threaded rod; 16. threaded sleeve; 17. guide groove; 18. guide block; 19. connecting column. DETAILED DESCRIPTION

[0018] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0019] according to Figure 1 , 2As shown in Figures 3 and 4, this embodiment proposes an oil collecting device for the hydraulic end of a plunger pump, comprising a mounting frame 1, a moving mechanism is arranged inside the mounting frame 1, an oil collecting chamber 2 is installed on the inner side of the mounting frame 1, a discharge port 3 is installed at one end of the bottom of the oil collecting chamber 2, a scraping mechanism is arranged inside the oil collecting chamber 2, and a plurality of connecting columns 19 are installed on the top of the mounting frame 1.

[0020] The scraper mechanism includes a scraper 4, a mounting chamber 5, a first servo motor 6, a threaded sleeve 7, a threaded block 8, a transmission rod 9 and a limiting structure. The scraper 4 is installed at one end inside the oil collecting chamber 2, the mounting chamber 5 is installed at one end of the oil collecting chamber 2, the first servo motor 6 is installed at one end of the mounting chamber 5, the threaded sleeve 7 is installed inside the mounting chamber 5, the output end of the first servo motor 6 is connected to one end of the threaded sleeve 7, the threaded sleeve 7 is provided with a threaded block 8, one end of the threaded block 8 is installed with a transmission rod 9, one end of the transmission rod 9 extends to the inside of the oil collecting chamber 2, and one end of the transmission rod 9 is connected to the scraper 4 is connected. When in use, the first servo motor 6 is started, and the threaded sleeve 7 is driven to rotate under the limitation of the positioning block 12 and the positioning groove 13. Since the threaded sleeve 7 and the threaded block 8 are threadedly connected, the threaded block 8 is used to drive the transmission rod 9 to move, and then under the limitation of the limiting block 10 and the limiting groove 11, the transmission rod 9 is used to drive the scraper 4 to move, and then the scraper 4 is used to scrape off the grease attached to the inner wall of the oil collecting chamber 2, and then the scraper 4 is used to push the grease to discharge from the discharge port 3, so that the grease inside the oil collecting chamber 2 can be automatically and efficiently discharged, thereby greatly improving the convenience of the device when in use.

[0021] The limiting structure includes a limiting block 10, a limiting groove 11, a positioning block 12 and a positioning groove 13. The limiting block 10 is installed at both ends of one side of the installation cavity 5. The limiting groove 11 is opened on both sides of the transmission rod 9. One end of the limiting block 10 extends to the inside of the limiting groove 11. The positioning groove 13 is opened on the outer wall of the threaded sleeve 7. The positioning block 12 is arranged inside the positioning groove 13. One end of the positioning block 12 is connected to the inner wall of the installation cavity 5. The inner diameter of the positioning groove 13 is larger than the outer diameter of the positioning block 12. A rotating structure is formed between the positioning block 12 and the positioning groove 13, the outer side of the scraper 4 is fitted with the inner side of the oil collecting chamber 2, and the cross-section of the oil collecting chamber 2 and the cross-section of the scraper 4 are both convex in design. When in use, the transmission rod 9 can be limited when moving by utilizing the mutual cooperation between the limiting block 10 and the limiting groove 11, so that the transmission rod 9 is more stable when moving, and the threaded sleeve 7 can be positioned when rotating by utilizing the mutual cooperation between the positioning block 12 and the positioning groove 13, so that the threaded sleeve 7 is more stable when rotating.

[0022] The moving mechanism includes a second servo motor 14, a threaded rod 15, a screw sleeve 16 and a guide structure. The second servo motor 14 is installed on one side of the mounting frame 1, and the threaded rod 15 is installed at one end inside the mounting frame 1. The output end of the second servo motor 14 is connected to one end of the threaded rod 15. The outer wall of the threaded rod 15 is provided with a screw sleeve 16. One end of the screw sleeve 16 is connected to one end of the oil collecting chamber 2. When in use, the second servo motor 14 is started to drive the threaded rod 15 to rotate, thereby driving the screw sleeve 16 to move. Therefore, under the limitation of the guide groove 17 and the guide block 18, the screw sleeve 16 is used to drive the oil collecting chamber 2 to move. At this time, the staff can manually clean the oil collecting chamber 2, so that the oil collecting chamber 2 is more effective when in use, thereby greatly improving the practicality of the device when in use.

[0023] The guide structure includes a guide groove 17 and a guide block 18. The guide groove 17 is opened on the other side of the mounting frame 1. The guide block 18 is arranged inside the guide groove 17. One end of the guide block 18 is connected to one end of the oil collecting chamber 2. When in use, the oil collecting chamber 2 can be limited when moving by the cooperation between the guide groove 17 and the guide block 18, so that the oil collecting chamber 2 is more stable when moving.

[0024] Working principle: The staff uses bolts and connecting columns 19 to fix the mounting frame 1 below the hydraulic end of the plunger pump, and uses the oil collecting chamber 2 to collect oil from the hydraulic end of the plunger pump. When the internal grease needs to be cleaned, the first servo motor 6 is started, and the threaded sleeve 7 is driven to rotate under the limit of the positioning block 12 and the positioning groove 13. Since the threaded sleeve 7 and the threaded block 8 form a threaded connection, the threaded block 8 is used to drive the transmission rod 9 to move, and then under the limit of the limit block 10 and the limit groove 11, the transmission rod 9 is used to drive the scraper 4 to move. The grease attached to the inner wall of the oil collecting chamber 2 is scraped off by the scraper 4, and then the scraper 4 is used to push the grease to discharge it from the discharge port 3. After a period of use, the second servo motor 14 is started to drive the threaded rod 15 to rotate, thereby driving the screw sleeve 16 to move. Therefore, under the limit of the guide groove 17 and the guide block 18, the screw sleeve 16 is used to drive the oil collecting chamber 2 to move. At this time, the staff can manually clean the oil collecting chamber 2. After cleaning, the second servo motor 14 is started to reverse and drive the oil collecting chamber 2 to return to its original position.

[0025] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A plunger pump hydraulic end oil collecting device, comprising a mounting frame (1), characterized in that: A moving mechanism is arranged inside the mounting frame (1), an oil collecting chamber (2) is arranged inside the mounting frame (1), a material discharge port (3) is arranged at one end of the bottom of the oil collecting chamber (2), a material scraping mechanism is arranged inside the oil collecting chamber (2), and a plurality of connecting columns (19) are arranged at the top of the mounting frame (1); The scraper mechanism comprises a scraper (4), a mounting chamber (5), a first servo motor (6), a threaded sleeve (7), a threaded block (8), a transmission rod (9) and a limiting structure. The scraper (4) is mounted at one end inside the oil collecting chamber (2). The mounting chamber (5) is mounted at one end of the oil collecting chamber (2). The first servo motor (6) is mounted at one end of the mounting chamber (5). The threaded sleeve (7) is mounted inside the mounting chamber (5). The output end of the first servo motor (6) is connected to one end of the threaded sleeve (7). The threaded sleeve (7) is provided inside. The transmission rod (9) is mounted at one end of the threaded block (8). One end of the transmission rod (9) extends to the inside of the oil collecting chamber (2). One end of the transmission rod (9) is connected to one end of the scraper (4).

2. The oil collecting device for the hydraulic end of a plunger pump according to claim 1, characterized in that: The limiting structure comprises a limiting block (10), a limiting groove (11), a positioning block (12) and a positioning groove (13); the limiting block (10) is installed at two ends of one side of the installation cavity (5); the limiting groove (11) is provided on both sides of the transmission rod (9); one end of the limiting block (10) extends to the inside of the limiting groove (11); the positioning groove (13) is provided on the outer wall of the threaded sleeve (7); a positioning block (12) is provided inside the positioning groove (13); one end of the positioning block (12) is connected to the inner wall of the installation cavity (5).

3. The oil collecting device for the hydraulic end of a plunger pump according to claim 2, characterized in that: The inner diameter of the positioning groove (13) is greater than the outer diameter of the positioning block (12), and a rotating structure is formed between the positioning block (12) and the positioning groove (13).

4. The oil collecting device for the hydraulic end of a plunger pump according to claim 3, characterized in that: The outer side of the scraper (4) and the inner side of the oil collecting chamber (2) are fitted together, and the cross-sections of the oil collecting chamber (2) and the scraper (4) are both convex in design.

5. The oil collecting device for the hydraulic end of a plunger pump according to claim 1, characterized in that: The moving mechanism comprises a second servo motor (14), a threaded rod (15), a screw sleeve (16) and a guide structure; the second servo motor (14) is mounted on one side of the mounting frame (1); the threaded rod (15) is mounted on one end inside the mounting frame (1); the output end of the second servo motor (14) is connected to one end of the threaded rod (15); the outer side wall of the threaded rod (15) is provided with a screw sleeve (16); one end of the screw sleeve (16) is connected to one end of the oil collecting chamber (2).

6. The oil collecting device for the hydraulic end of a plunger pump according to claim 5, characterized in that: The guide structure comprises a guide groove (17) and a guide block (18); the guide groove (17) is opened at the other side of the interior of the mounting frame (1); a guide block (18) is arranged inside the guide groove (17); one end of the guide block (18) is connected to one end of the oil collecting chamber (2).

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