A reciprocating high-pressure grease pump

Abstract

The present application relates to the technical field of grease pumps, and in particular to a reciprocating high-pressure grease pump, which includes a pump box, a reciprocating suction module is provided on one side of the pump box, the pump box is provided with an oil inlet and an oil outlet respectively, the oil inlet is connected to a connecting seat, an oil storage tank is provided on the connecting seat, an oil pressure plate is rotatably provided on the top surface of the connecting seat, the pump box is provided with a first driving mechanism for driving the oil pressure plate to rotate, a spiral blade shaft is rotatably provided in the pump box, and the pump box is provided with a second driving mechanism for driving the spiral blade shaft to rotate. The present application has the effect of improving the stability of the oil pumping of a reciprocating high-pressure grease pump.

Description

Technical Field

[0001] The present application relates to the technical field of grease pumps, and in particular to a reciprocating high-pressure grease pump. Background Art

[0002] A reciprocating high-pressure grease pump is a device used to deliver grease. It is driven by an AC motor to make the plunger reciprocate, thereby continuously outputting grease.

[0003] At present, the high-pressure grease pump includes a pump box, a suction seat is arranged in the pump box, a suction port is arranged in the suction seat, the suction seat extends outside the pump box, an oil outlet is arranged on one side of the part of the suction seat extending outside the pump box, a plunger reciprocates in the suction seat, the top surface of the pump box is fixedly connected to the oil tank, and the top cover of the oil tank is provided with an oil cap. By injecting grease into the oil tank, the grease accumulates in the pump box under the action of gravity, and when the plunger is driven to move back and forth in the suction seat, the grease in the pump box is sucked from the suction port into the suction seat, and finally flows out from the oil outlet.

[0004] However, since the rate of grease sucked out of the pump box through the suction seat is limited, and the grease is viscous and solidifying, when the amount of grease in the oil tank is sufficient, some of the grease retained in the oil tank and the pump box is prone to solidification, which not only affects the utilization rate of the grease, but also makes the grease pump prone to oil jamming. Summary of the invention

[0005] In order to improve the oil pumping stability of a reciprocating high-pressure grease pump, the present application provides a reciprocating high-pressure grease pump.

[0006] The present application provides a reciprocating high-pressure grease pump, which adopts the following technical solution:

[0007] A reciprocating high-pressure grease pump comprises a pump box, a reciprocating suction module is arranged on one side of the pump box, the pump box is respectively provided with an oil inlet and an oil outlet, the oil inlet is connected to a connecting seat, an oil storage tank is arranged on the connecting seat, an oil pressure plate is rotatably arranged on the top surface of the connecting seat, the pump box is provided with a first driving mechanism for driving the oil pressure plate to rotate, a spiral blade shaft is rotatably arranged in the pump box, and the pump box is provided with a second driving mechanism for driving the spiral blade shaft to rotate.

[0008] By adopting the above technical scheme, grease is loaded into the oil storage tank, and the grease enters the pump box through the oil inlet. When the reciprocating suction module is in operation, the reciprocating suction module sucks the grease in the pump box through the reciprocating piston movement, thereby pumping the grease out from the oil outlet. While the reciprocating piston of the reciprocating suction module is moving, the first driving mechanism drives the oil pressure plate to rotate unidirectionally, and the oil pressure plate squeezes the grease in the oil storage tank into the pump box. The second driving mechanism drives the spiral blade shaft to rotate, and the spiral blade shaft pushes the grease on the bottom wall of the pump box upward. Under the joint action of the oil pressure plate and the spiral blade shaft, the grease accumulates in the direction of the reciprocating suction module, thereby reducing the solidification of grease due to long-term accumulation, and improving the stability of the reciprocating high-pressure grease pump.

[0009] Optionally, the first driving mechanism includes a connecting shaft, which is rotatably arranged in the connecting seat, the top of the connecting shaft is fixedly connected to the oil pressure plate, the outer wall fixed sleeve of the bottom end of the connecting shaft is provided with a one-way bearing, and the pump box is provided with a first transmission component for driving the one-way bearing to rotate.

[0010] By adopting the above technical solution, the one-way bearing is unidirectional. When the first transmission component drives the one-way bearing to rotate in the forward direction, the one-way bearing drives the connecting shaft to rotate, and the connecting shaft thereby drives the oil pressure plate to rotate. When the first transmission component drives the one-way bearing to rotate in the reverse direction, the connecting shaft and the one-way bearing rotate relative to each other, and this is repeated, which is beneficial to improve the stability of the oil pressure plate's continuous one-way rotation and oil pressure.

[0011] Optionally, the first transmission assembly includes a swing seat, the swing seat is fixedly sleeved on the outer wall of the one-way bearing, a swing groove is opened at one end of the swing seat, a first connecting frame is provided on the side wall of the reciprocating suction module, a lever is provided on the top surface of the first connecting frame, and the lever is inserted into the swing groove.

[0012] By adopting the above technical scheme, when the reciprocating suction module drives the lever to move in the forward direction, the lever drives the swing seat to rotate in the forward direction through the swing groove, and the lever drives the swing seat to rotate in the reverse direction through the swing groove. The swing seat drives the connecting shaft to rotate through the one-way bearing, and the connecting shaft thereby drives the oil pressure plate to rotate. When the reciprocating suction module drives the lever to move in the reverse direction, the swing seat drives the one-way bearing to rotate, the one-way bearing and the connecting shaft rotate relative to each other, and the connecting shaft maintains the original direction and continues to rotate, which is beneficial to improve the stability of the oil pressure plate's continuous one-way rotation and oil pressure.

[0013] Optionally, the second driving mechanism includes a first bevel gear and a second bevel gear, the first bevel gear is fixedly sleeved on the side wall of the spiral blade shaft, the inner bottom wall of the pump box is provided with a bracket, a rotating shaft is rotatably arranged in the bracket, the second bevel gear is coaxially fixed on one end of the rotating shaft, the first bevel gear and the second bevel gear are meshed with each other, and the pump box is provided with a second transmission assembly for driving the rotating shaft to rotate.

[0014] By adopting the above technical solution, when the second transmission assembly drives the rotating shaft to rotate, the rotating shaft drives the second bevel gear to rotate, the second bevel gear drives the first bevel gear to rotate, and the first bevel gear drives the spiral blade shaft to rotate. At this time, the spiral blade shaft pushes the grease on the bottom wall of the pump box upward, and the grease moves toward the direction of the reciprocating suction module, which is beneficial to reduce the solidification of grease on the inner bottom wall of the pump box.

[0015] Optionally, the second transmission assembly includes a guide rod, a guide seat is provided on the inner bottom wall of the pump box, a guide cylinder is slidably provided in the guide seat, the guide cylinder is slidably sleeved on the end of the rotating shaft away from the second bevel gear, the guide rod is fixedly provided on the side wall of the guide cylinder, one end of the guide rod extends into the guide cylinder, a rotation guide groove is provided on the side wall of the rotating shaft, one end of the guide rod is slidably connected to the rotation guide groove, and a second connecting frame is provided on the side wall of the reciprocating suction module, and the second connecting frame is fixedly connected to the side wall of the guide cylinder.

[0016] By adopting the above technical solution, when the reciprocating suction module drives the second connecting frame to move reciprocatingly horizontally, the second connecting frame drives the guide cylinder to move reciprocatingly horizontally in the guide seat, and the guide cylinder thereby drives the guide rod to move reciprocatingly horizontally. In the process of reciprocating horizontal movement of the guide rod, the guide rod drives the rotating shaft to rotate continuously in one direction through the rotating guide groove, and the rotating shaft then drives the second bevel gear to rotate continuously in one direction, which is beneficial to improve the stability of the continuous unidirectional rotation of the rotating shaft.

[0017] Optionally, a square cylinder is provided on the side wall of the oil storage tank, a square block is slidably provided in the square cylinder, a knocking ball is provided on the side of the square block facing the oil storage tank, and the pump box is provided with a third transmission assembly for driving the square block to move back and forth;

[0018] The third transmission assembly includes an air rod, an air cylinder is provided on the side wall of the pump box, the air rod is slidably arranged in the air cylinder, one end of the air rod extends into the pump box, one end of the air rod is fixedly connected to the guide cylinder, one end of the air cylinder is connected to an air pipe, the air pipe is fixedly connected to one end of the square cylinder, an air hole is opened on the side wall of the square cylinder, and the air hole is close to the oil storage tank.

[0019] By adopting the above technical solution, when the third transmission assembly drives the block to move back and forth in the square tube, the block drives the knocking ball to move back and forth in the square tube. At this time, the knocking ball knocks back and forth on the side wall of the oil storage tank, thereby knocking off the grease adhering to the inner wall of the oil storage tank, thereby improving the utilization rate of the grease.

[0020] Optionally, the oil outlet is connected to a reversing valve, the reversing valve is a mechanical reversing valve, and the reversing valve is respectively provided with a grease outlet A and a grease outlet B.

[0021] By adopting the above technical solution, a mechanical reversing valve is used instead of an electronic reversing valve, which is conducive to reducing the use of electronic equipment, reducing the power load, simplifying the complexity of the mechanism, and improving the reliability of the entire system.

[0022] Optionally, an oil scraper is provided on the top surface of the oil pressure plate, and the oil scraper abuts against the inner wall of the oil storage tank.

[0023] By adopting the above technical solution, when the oil pressure plate continuously rotates in one direction, the oil pressure plate drives the oil scraper plate to continuously rotate in one direction. At this time, the oil scraper plate scrapes off the grease on the inner wall of the oil storage tank, and at the same time, the oil scraper plate stirs the grease in the oil storage tank. The oil scraper plate not only reduces the adhesion of grease to the inner wall of the oil storage tank, but also breaks the bubbles in the grease, thereby increasing the fullness of the grease.

[0024] Optionally, a refueling cylinder is connected to the side wall near the bottom of the oil storage tank, a refueling port is provided at one end of the refueling cylinder, a ball plug is provided inside the refueling cylinder, a spring is provided inside the refueling cylinder, one end of the spring is connected to the inner wall of the refueling cylinder, the other end of the spring is connected to the ball plug, and the refueling cylinder cover is provided with an oil cap.

[0025] By adopting the above technical scheme, in the initial state of the spring, the spring drives the plugging ball to seal the refueling port through elastic force. When grease needs to be added to the oil storage tank, the external high-pressure oil supply equipment is connected through the refueling port, and the plugging ball is squeezed inward by the oil pressure. The plugging ball squeezes the spring. At this time, the refueling port is opened, and grease is added to the oil storage tank from the refueling port. Grease is added to the oil storage tank by the bottom side, which is helpful to reduce the generation of grease bubbles.

[0026] Optionally, a low liquid level sensor and a high liquid level sensor are respectively provided in the oil storage tank.

[0027] By adopting the above technical solution, the low liquid level sensor and the high liquid level sensor are used to sense the low liquid level and the high liquid level in the oil storage tank respectively, which is beneficial to improving the stability of monitoring the oil storage amount.

[0028] In summary, this application includes the following beneficial technical effects:

[0029] By loading grease into the oil storage tank, the grease enters the pump box through the oil inlet. When the motor is started, the driving shaft of the motor drives the reciprocating suction module to operate. The reciprocating suction module sucks the grease in the pump box through the reciprocating piston movement, thereby pumping the grease out from the oil outlet. While the reciprocating piston of the reciprocating suction module is moving, the first driving mechanism drives the oil pressure plate to rotate unidirectionally, and the oil pressure plate squeezes the grease in the oil storage tank into the pump box. The second driving mechanism drives the spiral blade shaft to rotate, and the spiral blade shaft pushes the grease on the bottom wall of the pump box upward. Under the joint action of the oil pressure plate and the spiral blade shaft, the grease accumulates in the direction of the reciprocating suction module, thereby reducing the solidification of grease caused by long-term accumulation and improving the stability of the reciprocating high-pressure grease pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the reciprocating high-pressure grease pump of the present application;

[0031] Figure 2 is a cross-sectional view of the reciprocating high-pressure grease pump of the present application;

[0032] Figure 3 It is a structural schematic diagram of the oil pressure plate of the present application;

[0033] Figure 4 is a structural schematic diagram of the first driving mechanism of the present application;

[0034] Figure 5 is a cross-sectional view of the first driving mechanism of the present application;

[0035] Figure 6 is a structural schematic diagram of the second driving mechanism of the present application;

[0036] Figure 7 is a structural schematic diagram of the third transmission assembly of the present application;

[0037] Figure 8 It is a cross-sectional view of the refueling cylinder of the present application.

[0038] Explanation of reference numerals: 1, pump box; 2, reciprocating suction module; 3, oil inlet; 4, oil outlet; 5, connecting seat; 6, oil storage tank; 7, oil pressure plate; 8, spiral blade shaft; 9, connecting shaft; 10, one-way bearing; 11, swing seat; 12, swing groove; 13, first connecting frame; 14, lever; 15, first bevel gear; 16, second bevel gear; 17, bracket; 18, rotating shaft; 19, guide rod; 20, guide seat; 21, rotating guide Groove; 22. Square tube; 23. Block; 24. Knocking ball; 25. Gas rod; 26. Gas cylinder; 27. Air hole; 28. Oil scraper; 29. ​​Oil filling cylinder; 30. Oil filling port; 31. Ball plug; 32. Oil cap; 33. Low liquid level sensor; 34. High liquid level sensor; 35. Junction box; 36. Reversing valve; 37. Guide cylinder; 38. Air pipe; 39. Second connecting frame; 40. Spring; 41. Grease outlet A; 42. Grease outlet B. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-8 This application is described in further detail.

[0040] Example:

[0041] See also Figure 1-Figure 3 A reciprocating high-pressure grease pump comprises a pump box 1. A reciprocating suction module 2 is fixedly assembled on one side of the pump box 1. The pump box 1 is respectively provided with an oil inlet 3 and an oil outlet 4, the oil inlet 3 is located on the top surface of the pump box 1, and the oil outlet 4 is connected to the reciprocating suction module 2. The oil inlet 3 is fixedly connected to a connecting seat 5, and the top surface of the connecting seat 5 is fixedly connected to an oil storage tank 6, and the oil storage tank 6 is used to load grease. An oil pressure plate 7 is also rotatably mounted on the top surface of the connecting seat 5, and the pump box 1 is equipped with a first driving mechanism for driving the oil pressure plate 7 to rotate in one direction. A spiral blade shaft 8 is rotatably mounted on the inner bottom wall of the pump box 1, and the pump box 1 is also equipped with a second driving mechanism for driving the spiral blade shaft 8 to rotate in one direction.

[0042] In this embodiment, the reciprocating suction module 2 is a common grease pump suction structure in the art, which mainly includes a motor, an eccentric wheel, a suction seat and a piston. The motor drives the eccentric wheel to rotate, and the piston slides in the suction seat. The eccentric wheel drives the piston to move back and forth, thereby sucking grease into the suction seat, and finally pumping the grease out of the grease pump through the oil outlet 4.

[0043] It should be noted that grease is sticky and tends to coagulate when it is stationary for a long time. Therefore, the first driving mechanism drives the oil pressure plate 7 to rotate, and the oil pressure plate 7 squeezes the grease toward the oil inlet 3, so that the grease accumulates in the direction close to the reciprocating suction module 2. The second mechanism drives the spiral blade shaft 8 to rotate, and the spiral blade shaft 8 stirs the grease on the bottom wall of the pump box 1, and at the same time, the spiral blade shaft 8 drives the grease to accumulate in the direction close to the reciprocating suction module 2.

[0044] For details, see Figure 4 and Figure 5 The first driving mechanism includes a connecting shaft 9. The connecting shaft 9 is rotatably installed in the connecting seat 5, and the axis of the connecting shaft 9 coincides with the axis of the connecting seat 5. Both ends of the connecting shaft 9 extend outside the connecting seat 5, and the top end of the connecting shaft 9 is coaxially fixedly connected to the oil pressure plate 7, and the bottom end of the connecting shaft 9 is fixedly sleeved with a one-way bearing 10.

[0045] It should be noted that the one-way bearing 10 includes an inner ring and an outer ring. The one-way bearing 10 is unidirectional. When the outer ring rotates in the forward direction, the outer ring drives the inner ring to rotate together. When the outer ring rotates in the reverse direction, the outer ring rotates relative to the inner ring, and the outer ring rotates in opposite directions to the inner ring.

[0046] See also Figure 4 and Figure 5 , using the characteristics of the one-way bearing 10, in order to facilitate the continuous one-way rotation of the oil pressure plate 7, the pump box 1 is installed with a first transmission assembly, the first transmission assembly includes a swing seat 11, the swing seat 11 is fixedly sleeved on the outer ring of the one-way bearing 10, and a swing groove 12 is opened at one end of the swing seat 11. The side wall of the reciprocating suction module 2 is fixedly connected with a first connecting frame 13, and the top surface of the first connecting frame 13 is fixedly connected with a lever 14, which is vertically arranged and inserted into the swing groove 12.

[0047] When the reciprocating suction module 2 drives the lever 14 to move forward through the first connecting frame 13, the lever 14 drives the swing seat 11 to rotate forward through the swing slot 12, and the swing seat 11 drives the connecting shaft 9 to rotate forward through the one-way bearing 10, and the connecting shaft 9 then drives the oil pressure plate 7 to rotate forward, and the oil pressure plate 7 squeezes the grease into the oil inlet 3. When the reciprocating suction module 2 drives the lever 14 to move backward through the first connecting frame 13, the lever 14 drives the swing seat 11 to rotate backward through the swing slot 12, and the swing seat 11 drives the outer ring of the one-way bearing 10 to rotate backward, and the swing seat 11 rotates relative to the connecting shaft 9, and the connecting shaft 9 keeps rotating in the original direction, and the oil pressure plate 7 keeps rotating in the original direction.

[0048] For details, see Figure 2 and Figure 6 The second driving mechanism includes a first bevel gear 15 and a second bevel gear 16. The first bevel gear 15 is fixedly sleeved on the outer wall of the spiral blade shaft 8, and the first bevel gear 15 is close to the bottom end of the spiral blade shaft 8. A bracket 17 is fixedly installed on the inner bottom wall of the pump box 1, and a rotating shaft 18 is rotatably installed in the bracket 17. Both ends of the rotating shaft 18 extend outside the bracket 17. The second bevel gear 16 is fixedly sleeved on one end of the rotating shaft 18, and the first bevel gear 15 and the second bevel gear 16 are meshed with each other.

[0049] See also Figure 6In order to facilitate the continuous unidirectional rotation of the rotating shaft 18, the pump box 1 is equipped with a second transmission assembly, which includes a guide rod 19. A guide seat 20 is fixedly installed on the inner bottom wall of the pump box 1. A guide cylinder 37 is slidably installed in the guide seat 20, and both ends of the guide cylinder 37 extend outside the guide seat 20. One end of the guide cylinder 37 is slidably sleeved on the other end of the rotating shaft 18. The guide rod 19 is fixedly installed on the side wall of the guide cylinder 37, and one end of the guide rod 19 extends into the guide cylinder 37. The side wall of the rotating shaft 18 is provided with a rotation guide groove 21, which is in the shape of a continuous corrugated line, and one end of the guide rod 19 is slidably connected to the rotation guide groove 21. The side wall of the reciprocating suction module 2 is fixedly connected with a second connecting frame 39, and the second connecting frame 39 is fixedly connected to the side wall of the guide cylinder 37.

[0050] The reciprocating suction module 2 drives the guide cylinder 37 to reciprocate in the horizontal direction through the second connecting frame 39, and the guide cylinder 37 drives the guide rod 19 to reciprocate in the horizontal direction. During the reciprocating horizontal movement of the guide rod 19, the guide rod 19 drives the rotating shaft 18 to continuously rotate in one direction through the rotating guide groove 21, and the rotating shaft 18 further drives the second bevel gear 16 to continuously rotate in one direction, and the second bevel gear 16 drives the spiral blade shaft 8 to continuously rotate in one direction through the first bevel gear 15.

[0051] It is worth mentioning that, during use, a cover body may be provided on the inner bottom wall of the pump box 1, and the cover body is provided on the second driving mechanism, thereby improving the stability of the movement of the second driving mechanism.

[0052] See also Figure 2 and Figure 7 A square cylinder 22 is fixedly connected to the side wall of the oil storage tank 6, a square block 23 is slidably installed in the square cylinder 22, and a knocking ball 24 is fixedly connected to the side of the square block 23 facing the oil storage tank 6.

[0053] In order to drive the knocking ball 24 to knock the outer wall of the oil storage tank 6 back and forth, the pump box 1 is equipped with a third transmission assembly, and the third transmission assembly includes an air rod 25. The side wall of the pump box 1 is fixedly connected with an air cylinder 26, and the air rod 25 is slidably installed in the air cylinder 26. One end of the air rod 25 passes through the air cylinder 26 and the pump box 1 in sequence, and extends into the pump box 1, and one end of the air rod 25 is fixedly connected to the guide cylinder 37 through a connecting rod. The end of the air cylinder 26 away from the pump box 1 is fixedly connected with an air pipe 38, and the end of the air pipe 38 away from the air cylinder 26 is fixedly connected with the square tube 22. The side wall of the square tube 22 is provided with an air hole 27, and the air hole 27 is close to the oil storage tank 6.

[0054] When the guide cylinder 37 moves back and forth in the horizontal direction, the guide cylinder 37 drives the gas rod 25 to move back and forth horizontally through the connecting rod. At this time, the gas rod 25 reciprocates in the gas cylinder 26, and the air pressure continuously blows and inhales into the square tube 22 through the air pipe 38. When the air pressure blows into the square tube 22, the block 23 drives the knocking ball 24 to knock on the outer wall of the oil storage tank 6, and the air pressure on the other side of the block 23 is discharged from the square tube 22 through the air hole 27. When the air pressure inhales into the square tube 22, the block 23 drives the knocking ball 24 away from the oil storage tank 6, and the air pressure on the other side of the block 23 is sucked into the square tube 22 through the air hole 27. This is repeated, so that the knocking ball 24 reciprocates to knock on the side wall of the oil storage tank 6, thereby knocking off the grease adhering to the inner wall of the oil storage tank 6, and then cooperates with the oil pressure plate 7 to squeeze the grease, thereby improving the grease utilization rate.

[0055] It is worth mentioning that see Figure 2 and Figure 4 An oil scraper 28 is fixedly connected to the top surface of the oil pressure plate 7 , and one end of the oil scraper 28 away from the oil pressure plate 7 is attached to the inner wall of the oil storage tank 6 .

[0056] When the oil pressure plate 7 rotates, the oil pressure plate 7 also drives the scraper plate 28 to rotate. At this time, the scraper plate 28 scrapes the inner wall of the oil storage tank 6, and at the same time, the scraper plate 28 stirs the grease in the oil storage tank 6. The scraper plate 28 not only reduces the grease adhering to the inner wall of the oil storage tank 6, but also breaks the bubbles in the grease, thereby increasing the fullness of the grease.

[0057] See also Figure 2 and Figure 8 In order to add grease to the oil storage tank 6, the side wall of the oil storage tank 6 near the bottom is fixedly connected with a refueling cylinder 29, and the refueling cylinder 29 is close to the outer wall of the bottom end of the oil storage tank 6. The end of the refueling cylinder 29 away from the oil storage tank 6 is set as a refueling port 30, and a plugging ball 31 is slidably installed in the refueling cylinder 29, and the plugging ball 31 is used to block the refueling port 30. A spring 40 is also installed in the refueling cylinder 29, and one end of the spring 40 is fixedly connected to the inner wall of the refueling cylinder 29, and the other end of the spring 40 is tightly pressed against the plugging ball 31. The refueling cylinder 29 is provided with an oil cap 32 based on the refueling port 30.

[0058] In the initial state of the spring 40, the spring 40 blocks the plugging ball 31 at the refueling port 30 through elastic force. When the refueling cylinder 29 needs to be used to drain the oil, the oil cap 32 is opened first, and then the plugging ball 31 is squeezed by a tool, and the plugging ball 31 squeezes the spring 40, at which time the refueling port 30 is opened, and the grease is discharged to the outside of the oil storage tank 6 through the refueling cylinder 29. When the plugging ball 31 is released, the spring 40 releases the elastic force and drives the plugging ball 31 to move, and the plugging ball 31 blocks the refueling port 30, and the refueling port 30 is closed. By adding grease to the oil storage tank 6 near the bottom side, it is helpful to reduce the generation of excessive grease bubbles when adding grease.

[0059] See also Figure 1 and Figure 2 In order to monitor the usage status of the grease in the oil storage tank 6, a low liquid level sensor 33 and a high liquid level sensor 34 are fixedly installed in the oil storage tank 6. A junction box 35 is fixedly installed on the side wall of the oil storage tank 6, and the low liquid level sensor 33 and the high liquid level sensor 34 are both electrically connected to the junction box 35.

[0060] The low liquid level sensor 33 is used to monitor the lowest oil level of the grease in the oil storage tank 6, and the high liquid level sensor 34 is used to monitor the highest oil level in the oil storage tank 6. The low liquid level sensor 33 and the high liquid level sensor 34 transmit electrical signals to the junction box 35, and the junction box 35 sends a warning signal through a warning light, thereby serving as a prompt.

[0061] See also Figure 1 In order to facilitate the high-pressure grease to drive the double-line distribution grease valve, the reciprocating high-pressure grease pump is connected to a reversing valve 36 through the grease outlet 4. In this embodiment, the reversing valve 36 is a mechanical reversing valve 36, and the reversing valve 36 has two output channels, namely, the grease outlet A41 and the grease outlet B42. The use of a mechanical reversing valve 36 instead of an electronic reversing valve is conducive to reducing the use of electronic equipment, reducing power load, simplifying the complexity of the mechanism, and improving the reliability of the entire system.

[0062] When grease flows from the oil outlet 4 into the reversing valve 36, under the control of the reversing valve 36, the grease first flows to the grease outlet A41, and then flows to the oil storage point on the A side of the double-line grease distribution valve through the grease outlet A41. There are many such oil storage points, sometimes up to thousands. At the same time, the plunger inside the distribution valve is pushed to push the grease stored in the oil storage point on the opposite B side to various lubrication points of large equipment for lubrication, so as to ensure that the equipment works effectively under sufficient lubrication conditions. The oil storage point on the A side is gradually filled and the pressure gradually increases. When it reaches 30 MPa, it pushes the spring on a vertical plunger inside the reversing valve 36, and through the complex internal oil circuit, it pushes the three horizontal plungers inside the reversing valve 36. The oil circuit is instantly connected to the grease outlet B42 of the reversing valve 36. At this time, the pressure of the grease outlet A41 immediately becomes 0 and is connected to the grease return port of the reversing valve, causing the grease to flow to the grease storage point on the B side... Over and over again, the entire system operates in a coordinated manner to fully lubricate large equipment (such as mining equipment and port equipment).

[0063] Working principle of a reciprocating high-pressure grease pump:

[0064] When the reciprocating suction module 2 drives the lever 14 to move forward through the first connecting frame 13, the lever 14 drives the swing seat 11 to rotate forward through the swing slot 12, and the swing seat 11 drives the connecting shaft 9 to rotate forward through the one-way bearing 10, and the connecting shaft 9 then drives the oil pressure plate 7 to rotate forward, and the oil pressure plate 7 squeezes the grease into the oil inlet 3. When the reciprocating suction module 2 drives the lever 14 to move backward through the first connecting frame 13, the lever 14 drives the swing seat 11 to rotate backward through the swing slot 12, and the swing seat 11 drives the outer ring of the one-way bearing 10 to rotate backward, and the swing seat 11 rotates relative to the connecting shaft 9, and the connecting shaft 9 keeps rotating in the original direction, and the oil pressure plate 7 keeps rotating in the original direction. The oil pressure plate 7 squeezes the grease into the pump box 1.

[0065] At the same time, the reciprocating suction module 2 also drives the guide cylinder 37 to reciprocate in the horizontal direction through the second connecting frame 39, and the guide cylinder 37 thereby drives the guide rod 19 to reciprocate in the horizontal direction. During the reciprocating horizontal movement of the guide rod 19, the guide rod 19 drives the rotating shaft 18 to continuously rotate in one direction through the rotating guide groove 21, and the rotating shaft 18 then drives the second bevel gear 16 to continuously rotate in one direction, and the second bevel gear 16 drives the spiral blade shaft 8 to continuously rotate in one direction through the first bevel gear 15. Under the continuous unidirectional rotation of the spiral blade shaft 8, the grease on the bottom wall of the pump box 1 is stirred and often accumulates in the direction of the reciprocating suction module 2.

[0066] To sum up, under the joint action of the oil pressure plate 7 and the spiral blade shaft 8, the grease in the oil storage tank 6 and the pump box 1 is stably accumulated in the direction of the reciprocating suction module 2, avoiding the solidification caused by the long-term accumulation of grease in the oil storage tank 6 or the pump box 1, thereby improving the stability of the reciprocating grease pump.

[0067] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A reciprocating high-pressure grease pump, comprising a pump box (1), a reciprocating suction module (2) is arranged on one side of the pump box (1), the pump box (1) is respectively provided with an oil inlet (3) and an oil outlet (4), the oil inlet (3) is connected to a connecting seat (5), an oil storage tank (6) is arranged on the connecting seat (5), an oil pressure plate (7) is rotatably arranged on the top surface of the connecting seat (5), the pump box (1) is provided with a first driving mechanism for driving the oil pressure plate (7) to rotate, a spiral blade shaft (8) is rotatably arranged in the pump box (1), and the pump box (1) is provided with a second driving mechanism for driving the spiral blade shaft (8) to rotate; The first driving mechanism comprises a connecting shaft (9), the connecting shaft (9) is rotatably arranged in the connecting seat (5), the top end of the connecting shaft (9) is fixedly connected to the oil pressure plate (7), the outer wall of the bottom end of the connecting shaft (9) is fixedly sleeved with a one-way bearing (10), and the pump box (1) is provided with a first transmission component for driving the one-way bearing (10) to rotate; The first transmission assembly comprises a swing seat (11), the swing seat (11) is fixedly sleeved on the outer side wall of the one-way bearing (10), one end of the swing seat (11) is provided with a swing groove (12), the side wall of the reciprocating suction module (2) is provided with a first connecting frame (13), the top surface of the first connecting frame (13) is provided with a lever (14), and the lever (14) is inserted into the swing groove (12); The second driving mechanism comprises a first bevel gear (15) and a second bevel gear (16), the first bevel gear (15) is fixedly sleeved on the side wall of the spiral blade shaft (8), the inner bottom wall of the pump box (1) is provided with a bracket (17), a rotating shaft (18) is rotatably arranged in the bracket (17), the second bevel gear (16) is coaxially fixedly arranged on one end of the rotating shaft (18), the first bevel gear (15) and the second bevel gear (16) are meshed with each other, and the pump box (1) is provided with a second transmission component for driving the rotating shaft (18) to rotate; The second transmission assembly comprises a guide rod (19), a guide seat (20) is provided on the inner bottom wall of the pump box (1), a guide cylinder (37) is slidably provided in the guide seat (20), the guide cylinder (37) is slidably sleeved on the end of the rotating shaft (18) away from the second bevel gear (16), the guide rod (19) is fixedly provided on the side wall of the guide cylinder (37), one end of the guide rod (19) extends into the guide cylinder (37), a rotating guide groove (21) is provided on the side wall of the rotating shaft (18), one end of the guide rod (19) is slidably connected to the rotating guide groove (21), and a second connecting frame (39) is provided on the side wall of the reciprocating suction module (2), and the second connecting frame (39) is fixedly connected to the side wall of the guide cylinder (37).

2. A reciprocating high-pressure grease pump according to claim 1, characterized in that: The side wall of the oil storage tank (6) is provided with a square cylinder (22), a square block (23) is slidably provided in the square cylinder (22), a knocking ball (24) is provided on the side of the square block (23) facing the oil storage tank (6), and the pump box (1) is provided with a third transmission assembly for driving the square block (23) to move back and forth; The third transmission assembly comprises an air rod (25), an air cylinder (26) is arranged on the side wall of the pump box (1), the air rod (25) is slidably arranged in the air cylinder (26), one end of the air rod (25) extends into the pump box (1), one end of the air rod (25) is fixedly connected to the guide cylinder (37), one end of the air cylinder (26) is connected to an air pipe (38), the air pipe (38) is fixedly connected to one end of the square cylinder (22), an air hole (27) is opened on the side wall of the square cylinder (22), and the air hole (27) is close to the oil storage tank (6).

3. A reciprocating high-pressure grease pump according to claim 1, characterized in that: The oil outlet (4) is connected to a reversing valve (36), which is a mechanical reversing valve. The reversing valve (36) is provided with a grease outlet A (41) and a grease outlet B (42).

4. A reciprocating high-pressure grease pump according to claim 1, characterized in that: An oil scraper (28) is provided on the top surface of the oil pressure plate (7), and the oil scraper (28) abuts against the inner wall of the oil storage tank (6).

5. A reciprocating high-pressure grease pump according to claim 1, characterized in that: The oil storage tank (6) is connected to a side wall near the bottom end thereof and is provided with a refueling cylinder (29). One end of the refueling cylinder (29) is provided with a refueling port (30). A blocking ball (31) is provided inside the refueling cylinder (29). A spring (40) is provided inside the refueling cylinder (29). One end of the spring (40) is connected to the inner wall of the refueling cylinder (29), and the other end of the spring (40) is connected to the blocking ball (31). The refueling cylinder (29) is covered with an oil cap (32).

6. A reciprocating high-pressure grease pump according to claim 1, characterized in that: A low liquid level sensor (33) and a high liquid level sensor (34) are respectively arranged in the oil storage tank (6).

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