Quantitative oil injector structure for centralized lubrication system

Abstract

The utility model discloses a quantitative oil injector structure for a centralized lubrication system, which comprises an oil injection port, a T-shaped cover plate, a shell, a spring plate and a positioning pipe, the T-shaped cover plate, the shell, the spring plate and the positioning pipe are all provided with threaded holes, and the threaded holes are coaxially arranged; a threaded column is in threaded connection with the interior of the threaded hole; the inner wall face of the T-shaped cover plate is fixedly connected with the outer wall face of the oil injection opening, and the left end of the cover plate is fixedly connected with a rubber gasket. And the inner wall surface of the rubber gasket is fixedly connected with the outer wall surface of the oil injection left end. The quantitative oil injector for the centralized lubricating system can be matched with a lubricating oil pump station so as to quantitatively output lubricating oil, can effectively prevent the lubricating oil from flowing back, and can replace a spring which is prone to fatigue failure in the device, so that the maintenance cost is effectively reduced, and the overall service life of the device is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of centralized lubrication systems, in particular to a quantitative oil injector structure used for centralized lubrication systems. Background Art

[0002] The centralized lubrication system is an efficient and automated lubrication solution. It starts from a central lubricant supply source and delivers lubricating oil or grease to various lubrication points of mechanical equipment in a timely and quantitative manner through carefully designed distributors, pipelines and oil metering devices. This system is not only responsible for conveying and distributing lubricants, but also covers the functions of regulating, cooling, heating and purifying lubricants to ensure that the lubricants are always in the best working condition. In addition, the centralized lubrication system also includes a series of monitoring and indicating devices, which can display and monitor key parameters such as oil pressure, oil level, pressure difference, flow rate and oil temperature in real time, and issue alarms in time when faults or abnormal conditions occur. This comprehensive monitoring capability helps prevent equipment failures, extend the service life of mechanical equipment, and ensure the continuity and stability of the production process. The quantitative oiler is a key component of the centralized lubrication system. Its stable displacement and service life are directly related to the accuracy and life of the entire mechanical equipment such as CNC machine tools, machining centers, woodworking machinery, etc. However, the quantitative oiler structure of the existing centralized lubrication system still has certain defects, such as:

[0003] The "a quantitative lubricator" with application number CN201621083729.0 has a return spring that is easily damaged by fatigue. Since it is closely connected with other parts of the lubricator, it cannot be replaced separately. This means that during the maintenance process, once there is a problem with the return spring, the entire lubricator must be replaced instead of just the defective part. This design is not only inconvenient for maintenance, but also greatly increases the cost of maintenance, because replacing the entire lubricator is usually more time-consuming, complicated and expensive than replacing a single component. In addition, frequent replacement of the entire lubricator may cause unnecessary wear and tear on other parts of the equipment, further increasing the cost and complexity of long-term maintenance, and cannot meet the use requirements. In view of this, a quantitative lubricator structure for a centralized lubrication system is proposed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a quantitative oiler structure for a centralized lubrication system, so as to solve the problem in the above-mentioned background technology that the existing quantitative oiler for a centralized lubrication system cannot realize the individual replacement of the return spring in the structure which is prone to fatigue damage.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: it includes an oil filling port, a T-shaped cover plate, a shell, a spring plate and a positioning tube. The T-shaped cover plate, the shell, the spring plate and the positioning tube are all provided with threaded holes, and the threaded holes are all coaxially arranged; a threaded column is connected to the inner thread of the threaded hole; the inner wall surface of the T-shaped cover plate is fixedly connected to the outer wall surface of the oil filling port, and the left end of the cover plate is fixedly connected to a rubber gasket; the inner wall surface of the rubber gasket is fixedly connected to the outer wall surface of the left end of the oil filling port.

[0006] The above technical solution is adopted to ensure the stability of the overall structure.

[0007] As a preferred technical solution of the utility model, a slide groove is arranged on the inner wall surface of the shell, and the shell is slidably connected with a tapered piston through the slide groove; and liquid separation ports are symmetrically arranged at the upper and lower ends of the tapered piston.

[0008] The above technical solution is adopted to facilitate the transportation of lubricating oil, prevent excessive lubricating oil from being input at one time, and realize quantitative oil transportation in cooperation with the lubricating oil pump station.

[0009] As an optimal technical solution of the utility model, a No. 1 sealing gasket is fixedly connected to the inner wall surface of the spring plate; a connecting stud is provided on the upper end surface of the spring plate, and a return spring is fixedly connected to the connecting stud; the return spring abuts against the conical block at the left end of the conical piston.

[0010] The adoption of the technical solution facilitates the resetting of the tapered piston after the lubricating oil pump station stops the pressurizing movement.

[0011] As a preferred technical solution of the utility model, a No. 2 sealing gasket is arranged between the spring plate and the shell; the No. 2 sealing gaskets are all provided with the threaded holes; guide columns are evenly arranged on the bottom surface of the spring plate, and a groove corresponding to the guide column is arranged on the right end surface of the positioning tube.

[0012] The above technical solution is adopted to facilitate fixing the positions of the guide tube and the spring plate, making the connection thereof tighter.

[0013] As a preferred technical solution of the utility model, an oil outlet is fixedly connected to the inner wall surface of the positioning tube, and the diameter of the oil outlet is equal to the diameter of the No. 1 sealing gasket.

[0014] The adoption of the technical solution facilitates the outflow of lubricating oil.

[0015] As a preferred technical solution of the utility model, a ring block is arranged on the inner wall surface of the oil outlet, and a spring shaft is arranged on the left end of the ring block; the spring shaft is rotatably connected with a baffle, and the baffle abuts against the ring block.

[0016] The adoption of the technical solution can effectively prevent the lubricating oil from flowing back.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the quantitative oil injector for the centralized lubrication system is not only structurally stable but also can cooperate with the lubricating oil pump station to realize quantitative output of lubricating oil and effectively prevent the lubricating oil from flowing back. In addition, the springs in the device that are prone to fatigue failure can be replaced, which effectively reduces the maintenance cost and the overall service life of the device.

[0018] 1. When the lubricating oil pump station is started, pressure is applied to the tapered piston through the oil filling port to make it move to the left. Only a certain amount of lubricating oil can flow into the oil outlet under the action of pressure. At the same time, the baffle will be opened under pressure. When a certain amount of lubricating oil flows in, the tapered piston will block the oil outlet and the lubricating oil pump station will stop supplying oil.

[0019] 2. When the lubricating oil pump station stops moving and pressurizing, the conical piston will automatically reset under the action of the reset spring, and the baffle will press against the ring block again;

[0020] 3. When the spring of the device needs to be replaced, turn the threaded column to separate the shell and the spring plate, then reconnect the replacement part to the positioning tube, and turn the threaded column to fix the T-shaped cover plate to the shell, the spring plate and the No. 2 sealing gasket again. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the specific structure of the spring plate of the utility model.

[0025] In the figure: 1. Oil filling port; 2. T-type cover plate; 3. Threaded column; 4. Rubber gasket; 5. Shell; 6. Dispensing port; 7. Spring plate; 8. Reset spring; 9. Connecting stud; 10. No. 1 sealing gasket; 11. Guide column; 12. Positioning tube; 13. Oil outlet; 14. Ring block; 15. Spring shaft; 16. Baffle; 17. Conical piston; 18. Threaded hole; 19. No. 2 sealing gasket. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-4 , the technical solution of the utility model: a quantitative oiler structure for a centralized lubrication system, comprising an oil filling port 1, a T-shaped cover plate 2, a shell 5, a spring plate 7 and a positioning tube 12, characterized in that: the T-shaped cover plate 2, the shell 5, the spring plate 7 and the positioning tube 12 are all provided with threaded holes 18, and the threaded holes 18 are all coaxially arranged; the threaded hole 18 is internally threadedly connected with a threaded column 3; the inner wall surface of the T-shaped cover plate 2 is fixedly connected to the outer wall surface of the oil filling port 1, and the left end of the cover plate 2 is fixedly connected with a rubber gasket 4; the inner wall surface of the rubber gasket 4 is fixedly connected to the outer wall surface of the left end of the oil filling port 1, so as to ensure the stability of the overall structural connection;

[0028] A slide groove is provided on the inner wall of the housing 5, and the housing 5 is slidably connected to a tapered piston 17 through the slide groove; liquid separation ports 6 are symmetrically provided at the upper and lower ends of the tapered piston 17 to facilitate the diversion of the lubricating liquid to avoid outputting too much lubricating liquid at one time;

[0029] The inner wall surface of the spring plate 7 is fixedly connected with a No. 1 sealing gasket 10; the upper end surface of the spring plate 7 is provided with a connecting stud 9, and the connecting stud 9 is fixedly connected with a reset spring 8; the spring stud 9 abuts against the conical block at the left end of the conical piston 17, so as to facilitate the reset of the conical piston 17;

[0030] A No. 2 sealing gasket 19 is provided between the spring plate 7 and the housing 5; the No. 2 sealing gasket 19 is provided with a threaded hole 18; the bottom surface of the spring plate 7 is evenly provided with guide columns 11, and the right end surface of the positioning tube 12 is provided with a groove corresponding to the guide column 11, so as to facilitate fixing the position of the spring plate 7;

[0031] The inner wall of the positioning tube 12 is fixedly connected with an oil outlet 13, and the diameter of the oil outlet 13 is equal to the diameter of the No. 1 sealing gasket 10, so as to facilitate the output of lubricating oil;

[0032] A ring block 14 is provided on the inner wall of the oil outlet 13, and a spring shaft 15 is provided on the left end of the ring block 14; the spring shaft 15 is rotatably connected to a baffle 16, and the baffle 16 abuts against the ring block 14, which can effectively prevent the lubricating oil from flowing back;

[0033] Working principle: When the lubricating oil pump station is started, pressure is applied to the conical piston 17 through the oil filling port 1 to make it move to the left. Only a certain amount of lubricating oil can flow into the oil outlet 13 under the action of pressure. At the same time, the baffle 16 will be opened under pressure. When a certain amount of lubricating oil flows in, the conical piston 17 will block the oil outlet 13, and the lubricating oil pump station will stop supplying oil.

[0034] When the lubricating oil pumping station stops moving and pressurizing, the conical piston 17 will automatically reset under the action of the return spring 8, and the baffle 16 will press against the ring block 14 again;

[0035] When the spring of the device needs to be replaced, the threaded column 3 is turned to separate the shell 5 from the spring plate 7, and then the replacement part is re-inserted into the positioning tube 12, and the threaded column 3 is turned to fix the T-shaped cover 2 with the shell 5 and the spring plate 7 and the second sealing gasket 19 again. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model, and the scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A quantitative oiler structure for a centralized lubrication system, comprising an oil filling port (1), a T-shaped cover plate (2), a housing (5), a spring plate (7) and a positioning tube (12), characterized in that: The T-shaped cover plate (2), the housing (5), the spring plate (7) and the positioning tube (12) are all provided with threaded holes (18), and the threaded holes (18) are all coaxially arranged; the threaded hole (18) is internally threadedly connected with a threaded column (3); the inner wall surface of the T-shaped cover plate (2) is fixedly connected to the outer wall surface of the oil filling port (1), and the left end of the cover plate (2) is fixedly connected to a rubber gasket (4); the inner wall surface of the rubber gasket (4) is fixedly connected to the outer wall surface of the left end of the oil filling port (1).

2. The quantitative oiler structure for a centralized lubrication system according to claim 1, characterized in that: The inner wall surface of the housing (5) is provided with a sliding groove, and the housing (5) is slidably connected to a conical piston (17) via the sliding groove; and liquid separation ports (6) are symmetrically provided at the upper and lower ends of the conical piston (17).

3. The quantitative oiler structure for a centralized lubrication system according to claim 2 is characterized in that: A No. 1 sealing gasket (10) is fixedly connected to the inner wall surface of the spring plate (7); a connecting stud (9) is provided on the upper end surface of the spring plate (7), and a return spring (8) is fixedly connected to the connecting stud (9); the return spring (8) abuts against the conical block at the left end of the conical piston (17).

4. The quantitative oiler structure for a centralized lubrication system according to claim 3 is characterized in that: A No. 2 sealing gasket (19) is arranged between the spring plate (7) and the housing (5); the No. 2 sealing gasket (19) is provided with the threaded hole (18); guide columns (11) are evenly arranged on the bottom surface of the spring plate (7), and a groove corresponding to the guide column (11) is arranged on the right end surface of the positioning tube (12).

5. The quantitative oil injector structure for a centralized lubrication system according to claim 4, characterized in that: An oil outlet (13) is fixedly connected to the inner wall surface of the positioning tube (12), and the diameter of the oil outlet (13) is equal to the diameter of the No. 1 sealing gasket (10).

6. A quantitative oil injector structure for a centralized lubrication system according to claim 5, characterized in that: A ring block (14) is arranged on the inner wall surface of the oil outlet (13), and a spring shaft (15) is arranged on the left end of the ring block (14); the spring shaft (15) is rotatably connected to a baffle (16), and the baffle (16) abuts against the ring block (14).

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