A reciprocating pump power device capable of automatic oil injection

Abstract

The application relates to a reciprocating pump power device capable of automatic oil injection, and relates to the technical field of reciprocating pumps. The reciprocating pump power device comprises a base and a support arranged on the base, a general shaft is rotationally arranged on the support, a plurality of oil injection holes are formed in the upper portion of the general shaft, one end of the general shaft is connected with a driving piece, an oil injection rod is arranged at the other end of the general shaft, an oil injection groove is formed in the oil injection rod and the general shaft, an oil injection seat is further arranged on the base, an oil injection cavity is formed in the oil injection seat, an oil injection tank is in communication with the top end of the oil injection seat, a pressurizing pipe is in communication with the side wall of the oil injection tank and located at the top, a piston is movably arranged in the pressurizing pipe, a one-way air valve is arranged on the side wall of the pressurizing pipe and located above the piston, and a linkage assembly is arranged between the oil injection rod and the piston. The application has the advantages of automatic oil injection, improved convenience of oil injection operation, reduced friction between the outer wall of the crankshaft and the end of the connecting rod, and prolonged service life of the reciprocating pump.

Description

Technical Field

[0001] This application relates to the technical field of reciprocating pumps, and in particular to a reciprocating pump power unit capable of automatic oil injection. Background Technology

[0002] Currently, a reciprocating pump is a mechanical device that directly provides energy to a liquid in the form of pressure energy through the reciprocating motion of a piston.

[0003] The reciprocating pump power unit designed in the related technology includes a main shaft and a drive component for driving the main shaft to rotate. The main shaft includes multiple positioning wheels distributed along the axis and a crankshaft disposed between adjacent positioning wheels. Each crankshaft is fitted with a connecting rod. The multiple positioning wheels and multiple crankshafts are provided with a common oil injection groove for oil injection. Each crankshaft has an oil injection hole from the outer wall of the crankshaft to the oil injection groove. By injecting lubricating oil into the oil injection groove, the lubricating oil can flow through the oil injection groove to the oil injection hole and flow into the space between the crankshaft and the connecting rod, thereby providing lubrication.

[0004] Regarding the aforementioned technologies, oil injection requires manual operation by using an oil injection device installed at the opening of the oil injection tank. This operation is cumbersome, time-consuming, and labor-intensive. Summary of the Invention

[0005] The purpose of this application is to provide a reciprocating pump power unit with automatic oil injection, which has the advantages of automatic oil injection, improved convenience of oil injection operation, reduced friction between the crankshaft outer wall and the end of the connecting rod, and extended service life of the reciprocating pump.

[0006] The reciprocating pump power unit with automatic oil injection provided in this application adopts the following technical solution:

[0007] An automatic oil-filling reciprocating pump power unit includes a base and a bracket mounted on the base. A main shaft is rotatably mounted on the bracket, and several oil filling holes are opened on the main shaft. One end of the main shaft is connected to a drive component, and the other end of the main shaft is provided with an oil filling rod. An oil filling groove is opened on both the oil filling rod and the main shaft, and the oil filling groove is interconnected with the several oil filling holes. An oil filling seat is also provided on the base, and an oil filling chamber is opened in the oil filling seat. The oil filling rod extends into the oil filling chamber. An oil filling tank is connected to the top of the oil filling seat, and a pressure pipe is connected to the side wall and top of the oil filling tank. A piston is movably mounted in the pressure pipe, and a one-way air valve is provided on the side wall and above the piston of the pressure pipe. A linkage assembly is provided between the oil filling rod and the piston. The linkage assembly is used to drive the piston to reciprocate within the pressure pipe when the oil filling rod rotates.

[0008] By adopting the above technical solution, when the reciprocating pump is in use, the drive component drives the main shaft to rotate on the bracket. When the main shaft rotates, it drives the oil injection rod to rotate in the oil injection chamber. The oil injection rod, in turn, drives the piston to reciprocate in the pressure pipe through the linkage assembly. When the piston moves away from the oil tank, the one-way valve opens, and gas from outside the pressure pipe enters the pressure pipe through the one-way valve. When the piston moves towards the oil tank, the one-way valve closes, and gas enters the oil tank. Under pressure, the lubricating oil in the oil tank enters the oil injection chamber in the oil injection seat, and the lubricating oil flows into the oil injection groove on the oil injection rod. Under the force of air pressure, the lubricating oil flows continuously towards the oil injection hole in the oil injection groove and flows out through the oil injection hole. The lubricating oil can reduce the friction between the outer wall of the main shaft and the end of the connecting rod, automatically perform oil injection, improve the convenience of oil injection operation, and extend the service life of the reciprocating pump.

[0009] Optionally, the linkage assembly includes a linkage shaft, a linkage disc, a linkage block, and a linkage rod. The linkage shaft is located at the end of the oil injection rod away from the main shaft. The linkage shaft passes through the oil injection seat and is connected to the linkage disc. The linkage block is located on the end wall of the linkage disc. One end of the linkage rod is hinged to the linkage block, and the other end of the linkage rod is hinged to the piston.

[0010] By adopting the above technical solution, when the reciprocating pump is working, the drive component drives the main shaft to rotate, the main shaft then drives the oil injection rod to rotate in the oil injection seat, the oil injection rod then drives the linkage shaft to rotate, the linkage shaft rotates and drives the linkage disc to rotate, the linkage block on the linkage disc pulls or pushes the linkage rod, the linkage rod then drives the piston to reciprocate along the length of the pressure pipe in the pressure pipe. When the piston reciprocates, it drives the one-way air valve to continuously close and open, allowing external gas to continuously enter the pressure pipe. Thus, the lubricating oil in the oil tank enters the oil injection chamber, oil injection groove and oil injection hole successively under the action of air pressure. The lubricating oil is added by using the power of the main shaft's own rotation, which is convenient and quick to control and achieves the purpose of saving costs.

[0011] Optionally, a slider is integrally provided on the linkage block, and a slide groove is provided on the linkage disk, with the slider slidingly disposed within the slide groove; a sliding component is provided on the linkage disk, and the sliding component is used to drive the slider to slide within the slide groove.

[0012] By adopting the above technical solution, when it is not necessary to inject lubricating oil between the outer wall of the main shaft and the end of the connecting rod, the slider can be driven by the sliding assembly to slide in the slide groove. The slider slides along the length of the slide groove. When the slider slides to the center of the slide groove, the linkage block will be coaxial with the linkage disc, and the linkage disc is coaxial with the main shaft. Therefore, when the main shaft drives the linkage disc to rotate, the linkage block will not push or pull the linkage rod, and the piston will not move in the pressure pipe, stopping the pressurization of the oil tank. When it is necessary to inject lubricating oil between the outer wall of the main shaft and the end of the connecting rod, the slider can be driven by the sliding assembly to move towards the side wall of the linkage disc in the slide groove. The piston can then be driven to move under the rotation of the main shaft, thereby controlling the piston movement to meet different usage conditions and reduce lubricating oil waste.

[0013] Optionally, the sliding assembly includes a sliding motor and a lead screw, the lead screw is rotatably disposed in the slide groove, the slider is threadedly connected to the lead screw, the sliding motor is disposed on the linkage plate, and the drive shaft of the sliding motor is connected to the lead screw.

[0014] By adopting the above technical solution, it is necessary to control the slider to slide within the groove. When the position of the slider within the groove is changed, the sliding motor drives the lead screw to rotate. At the same time, the slider is limited by the groove, so the slider can slide on the outer wall of the lead screw. The slider can slide along the length of the groove, changing the position of the linkage block, thereby realizing the control of the piston's motion state. The control is convenient and quick, and the control accuracy is high.

[0015] Optionally, a temperature sensor is provided on the main shaft, and the temperature sensor is connected to a controller. The sliding component is interconnected with the controller. The controller is used to control the sliding component to drive the slider to slide towards the end wall of the linkage plate when the temperature sensor detects a temperature value greater than a preset value. The controller includes a timing module, which is used to control the sliding component to work at a certain preset time point.

[0016] By adopting the above technical solution, when the main shaft is in use, the temperature sensor can detect the temperature of the main shaft surface. When the temperature is too high, the reciprocating pump is prone to damage. At this time, the controller detects that the temperature transmitted by the temperature sensor is greater than the preset value. The controller will control the sliding component to drive the slider to slide towards the side wall of the linkage plate, automatically controlling the use of lubricating oil to cool down when the temperature is high. At the same time, a timing module is configured in the controller. The timing module controls the sliding component to work automatically at a predetermined time, realizing the automatic injection and stop of lubricating oil when the reciprocating pump is working, which improves the automation level of the device.

[0017] Optionally, the oil injection seat has symmetrically provided mounting holes, and the inner wall of the mounting holes is provided with mounting grooves. A bearing is provided in the mounting groove, and the outer ring of the bearing is engaged with the inner wall of the mounting groove. The oil injection rod passes through one of the bearings, and the linkage shaft passes through the other bearing. A limit plate is rotatably provided on the outer wall of the oil injection seat, and the limit plate can abut against the bearing.

[0018] By adopting the above technical solution, during installation, the bearing is installed in the mounting groove, and the outer ring of the bearing is engaged with the inner wall of the mounting groove. Then, the limiting plate is rotated, and the bearing is fixed in the mounting groove by the limiting plate against the bearing. The oil injection rod and the linkage shaft both pass through the bearing. The bearing can reduce the friction between the oil injection rod and the linkage shaft and the mounting hole, reduce wear, and extend service life.

[0019] Optionally, a sealing disc is integrally formed on the surface of the oil injection rod, the groove of the oil injection groove is located on the side wall of the sealing disc, and the end wall of the sealing disc is in contact with the inner wall of the oil injection cavity; a sealing ring is provided on the end wall of the sealing disc, and a sealing ring groove is formed on the inner wall of the oil injection cavity, and the sealing ring is slidably disposed in the sealing ring groove.

[0020] By adopting the above technical solution, when the oil injection rod rotates with the main shaft, the sealing disc rotates in the oil injection chamber, and the sealing ring on the sealing plate slides in the sealing ring groove. The sealing disc can reduce the situation where lubricating oil in the oil injection chamber flows out through the mounting hole, while the sealing ring and sealing ring groove can further improve the sealing between the sealing disc and the inner wall of the oil injection chamber, and improve the overall sealing performance of the oil injection seat.

[0021] Optionally, the oil tank is equipped with a liquid level sensor connected to the controller, and the controller is also connected to an alarm. The controller is used to control the alarm to sound when the liquid level detected by the liquid level sensor is lower than a set value.

[0022] By adopting the above technical solution, the liquid level sensor can detect the liquid level of the lubricating oil in the oil tank. When the liquid level detected by the liquid level sensor is lower than the set value, the controller will control the alarm to sound, which serves as a warning when the lubricating oil is insufficient.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By setting up a base, bracket, main shaft, oil injection hole, drive component, oil injection rod, oil injection groove, oil injection seat, oil injection chamber, oil injection tank, piston, pressure pipe, and linkage assembly, the reciprocating pump is used in which the drive component drives the main shaft to rotate, and the linkage assembly drives the piston to reciprocate in the pressure pipe. Under the action of pressure, the lubricating oil flows continuously in the oil injection groove towards the oil injection hole and flows out through the oil injection hole. The lubricating oil can reduce the friction between the outer wall of the main shaft and the end of the connecting rod, automatically perform oil injection, improve the convenience of oil injection operation, and extend the service life of the reciprocating pump;

[0025] 2. By setting up a linkage shaft, linkage disc, linkage block, and linkage rod, when the reciprocating pump is working, the driving component drives the oil injection rod to rotate in the oil injection seat. The oil injection rod then drives the linkage block to pull or push the linkage rod. The linkage rod then drives the piston to reciprocate along the length of the pressure pipe, so that external gas continuously enters the pressure pipe. Thus, the lubricating oil in the oil tank enters the oil injection chamber, oil injection groove, and oil injection hole successively under the action of air pressure. The lubricating oil is added by using the power of the main shaft rotating itself. The control is convenient and quick, and the goal of saving costs is achieved.

[0026] 3. By setting up a slider, a groove, a sliding motor, and a lead screw, when it is not necessary to inject lubricating oil between the outer wall of the main shaft and the end of the connecting rod, the sliding motor can drive the slider to slide in the groove, making the linkage block coaxial with the linkage plate. At this time, the linkage block will not push or pull the linkage rod, and thus the piston will not move in the pressure pipe, stopping the pressurization of the oil tank. When it is necessary to inject lubricating oil between the outer wall of the main shaft and the end of the connecting rod, the sliding motor drives the slider to move towards the side wall of the linkage plate in the groove, which can drive the piston to move under the rotation of the main shaft, thereby realizing the control of the piston movement to meet different usage conditions and reduce the waste of lubricating oil. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a reciprocating pump power device capable of automatic oil injection provided in an embodiment of this application;

[0028] Figure 2 This is a schematic cross-sectional view of a reciprocating pump power device capable of automatic oil injection provided in an embodiment of this application;

[0029] Figure 3 yes Figure 2 Enlarged view of section A;

[0030] In the diagram, 1. Base; 11. Bracket; 2. Main shaft; 21. Oil injection hole; 22. Drive component; 23. Temperature sensor; 3. Oil injection rod; 31. Oil injection groove; 4. Oil injection seat; 41. Oil injection chamber; 42. Oil injection tank; 43. Pressurization pipe; 431. Piston; 44. One-way air valve; 5. Linkage assembly; 51. Linkage shaft; 52. Linkage disc; 53. Linkage block; 54. Linkage rod; 6. Slider; 61. Slide groove; 7. Sliding assembly; 71. Sliding motor; 72. Lead screw; 8. Mounting hole; 81. Mounting groove; 82. Bearing; 83. Limiting plate; 9. Sealing disc; 91. Sealing ring; 92. Sealing ring groove; 10. Liquid level sensor; 101. Alarm. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 -Appendix Figure 3 This application will be described in further detail below.

[0032] A reciprocating pump power unit with automatic oil injection, as described in the following figure. Figures 1 to 3 The system includes a base 1 and a bracket 11 fixedly mounted on the base 1. A main shaft 2 is rotatably mounted on the bracket 11. One end of the main shaft 2 is connected to a drive component 22. In this embodiment, the drive component 22 is a motor, which drives the main shaft 2 to rotate on the bracket 11. The other end of the main shaft 2 is provided with an oil injection rod 3, which is integrally formed with the main shaft 2. The main shaft 2 has several oil injection holes 21. The oil injection rod 3 and the main shaft 2 are provided with an oil injection groove 31. The oil injection groove 31 and the several oil injection holes 21 are interconnected. By injecting lubricating oil into the oil injection groove 31, the lubricating oil can flow out through the oil injection holes 21 to the outer wall of the main shaft 2 and the end of the connecting rod, thereby reducing the friction and wear of the main shaft 2.

[0033] Reference Figure 2 and Figure 3The base 1 is also equipped with an oil filling seat 4, which has an oil filling chamber 41. One end of the oil filling rod 3, away from the main shaft 2, extends into the oil filling chamber 41. The top of the oil filling seat 4 is connected to an oil filling tank 42, which is fixedly installed at the top of the oil filling seat 4. The side wall of the oil filling tank 42, located at the top, is connected to a pressure pipe 43, which is arranged vertically. A piston 431 is movably installed inside the pressure pipe 43, which can seal the pressure pipe 43. A one-way valve 44 is installed on the side wall of the pressure pipe 43, above the piston 431, which can restrict the flow of gas from the pressure pipe 43. When the piston 431 reciprocates in the pressurization pipe 43, if the piston moves away from the oil tank 42, the one-way valve 44 opens, and the gas outside the pressurization pipe 43 enters the pressurization pipe 43 through the one-way valve 44. When the piston 431 moves closer to the oil tank 42, the one-way valve 44 closes, and the gas enters the oil tank 42. Under pressure, the lubricating oil in the oil tank 42 enters the oil filling chamber 41 in the oil filling seat 4, and the lubricating oil flows into the oil filling groove 31 on the oil filling rod 3. The lubricating oil flows continuously in the oil filling groove 31 towards the oil filling hole 21, and finally flows out from the oil filling hole 21.

[0034] Reference Figure 2 and Figure 3 A linkage assembly 5 is provided between the oil injection rod 3 and the piston 431. The linkage assembly 5 includes a linkage shaft 51, a linkage disc 52, a linkage block 53, and a linkage rod 54. The linkage shaft 51 is fixedly located at the end of the oil injection rod 3 away from the main shaft 2, and passes through the oil injection seat 4 and is fixedly connected to the linkage disc 52. The linkage block 53 is located at the end of the linkage disc 52 away from the linkage shaft 51. One end of the linkage rod 54 is hinged to the linkage block 53, and the other end of the linkage rod 54 is hinged to the piston 431. When the driving component 22 drives the main shaft 2 to rotate, the main shaft 2 drives the oil injection rod 3 and the linkage shaft 51 to rotate. When the linkage shaft 51 rotates, it drives the linkage disc 52 to rotate, so that the linkage block 53 can pull or push the linkage rod 54, thereby driving the piston 431 to reciprocate along the length of the pressure pipe 43, so that external gas continuously enters the pressure pipe 43. The lubricating oil is injected by utilizing the power of the rotation of the main shaft 2. The control is convenient and quick, achieving the purpose of saving costs.

[0035] Reference Figure 2 and Figure 3A sliding groove 61 is formed on the end wall of the linkage disk 52. The length direction of the sliding groove 61 is set along the radial direction of the linkage disk 52. A slider 6 is slidably disposed in the sliding groove 61, and a linkage block 53 is integrally fixedly disposed on the slider 6. A sliding assembly 7 is provided on the linkage disk 52. The sliding assembly 7 includes a sliding motor 71 and a lead screw 72. The lead screw 72 is rotatably disposed in the sliding groove 61, and the slider 6 is threadedly connected to the lead screw 72. The sliding motor 71 is fixedly disposed on the linkage disk 52 by bolts, and the drive shaft of the sliding motor 71 is connected to the lead screw 72. When it is not necessary to inject lubricating oil between the outer wall of the main shaft 2 and the end of the connecting rod, the sliding assembly 7 can be used. The sliding motor 71 drives the lead screw 72 to rotate, and the slider 6 is limited by the slide groove 61. Thus, the slider 6 can slide along the length of the slide groove 61. When the slider 6 is slid to the center of the slide groove 61, the linkage block 53 will be coaxial with the linkage disk 52. The linkage disk 52 is coaxial with the main shaft 2. Therefore, when the main shaft 2 drives the linkage disk 52 to rotate, the linkage block 53 will not push or pull the linkage rod 54. Consequently, the piston 431 will not move in the pressure pipe 43, stopping the pressurization of the oil tank 42 and realizing the control of the movement of the piston 431 to meet different usage conditions and reduce the waste of lubricating oil.

[0036] Reference Figure 2 A temperature sensor 23 is installed on the main shaft 2, and the temperature sensor 23 is connected to a controller. The sliding motor 71 is also connected to the controller. During use, the temperature sensor 23 can detect the surface temperature of the main shaft 2. When the temperature is too high, the reciprocating pump is prone to damage. At this time, if the controller detects that the temperature transmitted by the temperature sensor 23 is greater than the preset value, the controller will control the sliding component 7 to drive the slider 6 to slide towards the side wall of the linkage plate 52, automatically controlling the use of lubricating oil for lubrication and cooling at high temperatures. The controller includes a timing module, which controls the sliding component 7 to work automatically at a predetermined time, realizing automatic lubricating oil injection and stopping when the reciprocating pump is working, thus improving the degree of automation.

[0037] Reference Figure 3 The oil tank 42 is equipped with a liquid level sensor 10 connected to the controller. The controller is also connected to an alarm 101, which is installed on the oil tank 42. The liquid level sensor 10 can detect the liquid level of the lubricating oil in the oil tank 42. When the liquid level detected by the liquid level sensor 10 is lower than the set value, the controller controls the alarm 101 to sound an alarm, which serves as a warning when the lubricating oil is insufficient.

[0038] Reference Figure 3The oil filling seat 4 has symmetrically arranged mounting holes 8, and mounting grooves 81 are provided on the inner walls of the mounting holes 8. Bearings 82 are installed in the mounting grooves 81, and the outer rings of the bearings 82 are interlocked with the inner walls of the mounting grooves 81 by an interference fit. The oil filling rod 3 passes through one of the bearings 82, and the linkage shaft 51 passes through the other bearing 82. A limiting plate 83 is rotatably provided on the outer wall of the oil filling seat 4. By engaging the bearings 82 in the mounting grooves 81 and rotating the limiting plate 83, the bearings 82 can be fixed in the mounting grooves 81 by resisting each other. The bearings 82 can reduce the friction between the oil filling rod 3 and the linkage shaft 51 and the mounting holes 8, reduce wear, and extend service life.

[0039] Reference Figure 3 The end of the oil injection rod 3 is integrally provided with a sealing disc 9. The groove of the oil injection groove 31 is located on the side wall of the sealing disc 9. Several grooves of the oil injection groove 31 can be provided. The end wall of the sealing disc 9 is in contact with the inner wall of the oil injection cavity 41. A sealing ring 91 is fixedly provided on the end wall of the sealing disc 9. A sealing ring groove 92 is provided on the inner wall of the oil injection cavity 41. The sealing ring 91 is slidably disposed in the sealing ring groove 92, and the sealing ring 91 and the sealing ring groove 92 are mutually adapted. When the oil injection rod 3 rotates with the main shaft 2, the sealing disc 9 rotates in the oil injection cavity 41. The sealing disc 9 can reduce the leakage of lubricating oil in the oil injection cavity 41 through the mounting hole 8. At the same time, the sealing ring 91 will slide in the sealing ring groove 92, improving the overall sealing performance of the oil injection seat 4.

[0040] The implementation principle of this application embodiment is as follows:

[0041] When lubricating oil needs to be injected, the sliding motor 71 drives the slider 6 to slide within the slide groove 61, moving the slider 6 towards the end wall of the linkage disk 52. At this time, the drive component 22 drives the main shaft 2 to rotate, which in turn drives the linkage shaft 51 and the linkage disk 52 to rotate. Consequently, the linkage block 53 on the linkage disk 52 pulls or pushes the linkage rod 54, which in turn drives the piston 431 to reciprocate along the length of the pressure pipe 43. When the piston 431 moves away from the oil tank 42, the one-way valve 44 opens, allowing external gas to pass through the one-way valve 44. The gas enters the pressurization pipe 43. When the piston 431 moves towards the oil filling tank 42, the one-way valve 44 closes, and the gas enters the oil filling tank 42. Under pressure, the lubricating oil in the oil filling tank 42 enters the oil filling chamber 41 in the oil filling seat 4, and exits to the surface of the main shaft 2 through the oil filling groove 31 and the oil filling hole 21. The lubricating oil can reduce the friction between the outer wall of the main shaft 2 and the end of the connecting rod. The control is convenient and quick. The controller automatically controls the oil filling at a specified time, which reduces the friction between the outer wall of the crankshaft and the end of the connecting rod. It has a high degree of automation, low implementation cost, high control accuracy, and wide applicability.

[0042] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A reciprocating pump power unit with automatic oil injection, comprising a base (1) and a bracket (11) mounted on the base (1), wherein a main shaft (2) is rotatably mounted on the bracket (11), the main shaft (2) having a plurality of oil injection holes (21) thereon, and one end of the main shaft (2) being connected to a drive component (22), characterized in that, An oil injection rod (3) is provided at the other end of the main shaft (2). An oil injection groove (31) is provided on both the oil injection rod (3) and the main shaft (2). The oil injection groove (31) is interconnected with several oil injection holes (21). An oil injection seat (4) is also provided on the base (1). An oil injection chamber (41) is provided in the oil injection seat (4). The oil injection rod (3) extends into the oil injection chamber (41). An oil injection tank (42) is connected to the top of the oil injection seat (4). A pressure pipe (43) is connected to the side wall of the oil injection tank (42) and located at the top. A piston (431) is movably arranged in the pressure pipe (43). A one-way valve (44) is provided above the piston (431); a linkage assembly (5) is provided between the oil injection rod (3) and the piston (431). The linkage assembly (5) is used to drive the piston (431) to reciprocate in the pressure tube (43) when the oil injection rod (3) rotates. The linkage assembly (5) includes a linkage shaft (51), a linkage disc (52), a linkage block (53), and a linkage rod (54). The linkage shaft (51) is located at one end of the oil injection rod (3) away from the main shaft (2). The linkage shaft (51) passes through the oil injection seat (4) and is connected to the linkage disc (52). The linkage block (53) is located on the end wall of the linkage disc (52). One end of the linkage rod (54) is hinged to the linkage block (53), and the other end of the linkage rod (54) is hinged to the piston (431). A slider (6) is integrally provided on the linkage block (53), and a slide groove (61) is provided on the linkage disk (52). The slider (6) is slidably disposed in the slide groove (61). A sliding assembly (7) is provided on the linkage disk (52). The sliding assembly (7) is used to drive the slider (6) to slide in the slide groove (61). The sliding assembly (7) includes a sliding motor (71) and a lead screw (72). The lead screw (72) is rotatably disposed in the slide groove (61). The slider (6) and the lead screw (72) are connected. 2) The sliding motor (71) is mounted on the linkage disk (52) and the drive shaft of the sliding motor (71) is connected to the lead screw (72); a temperature sensor (23) is mounted on the main shaft (2) and the temperature sensor (23) is connected to a controller. The sliding assembly (7) is connected to the controller. The controller is used to control the sliding assembly (7) to drive the slider (6) to slide towards the side wall of the linkage disk (52) when the temperature sensor (23) detects that the temperature value is greater than the preset value; the controller includes a timing module and the timing module is used to control the sliding assembly (7) to work at a certain preset time point.

2. The reciprocating pump power device with automatic oil injection according to claim 1, characterized in that, The oil filling seat (4) is symmetrically provided with mounting holes (8), and the inner wall of the mounting hole (8) is provided with a mounting groove (81). A bearing (82) is provided in the mounting groove (81), and the outer ring of the bearing (82) is engaged with the inner wall of the mounting groove (81). The oil filling rod (3) passes through one of the bearings (82), and the linkage shaft (51) passes through the other bearing (82). A limiting plate (83) is rotatably provided on the outer wall of the oil filling seat (4), and the limiting plate (83) can abut against the bearing (82).

3. The reciprocating pump power device with automatic oil injection according to claim 1, characterized in that, The surface of the oil injection rod (3) is integrally provided with a sealing disc (9), the groove of the oil injection groove (31) is located on the side wall of the sealing disc (9), the end wall of the sealing disc (9) is in contact with the inner wall of the oil injection cavity (41); a sealing ring (91) is provided on the end wall of the sealing disc (9), and a sealing ring groove (92) is provided on the inner wall of the oil injection cavity (41), and the sealing ring (91) is slidably disposed in the sealing ring groove (92).

4. The reciprocating pump power device with automatic oil injection according to claim 1, characterized in that, The oil tank (42) is equipped with a liquid level sensor (10) connected to the controller. The controller is also connected to an alarm (101). The controller is used to control the alarm (101) to sound an alarm when the liquid level detected by the liquid level sensor (10) is lower than the set value.

Images