Mining intrinsic safety type automatic grease injector

Abstract

The utility model relates to the technical field of grease injectors, and discloses a mining intrinsic safety type automatic grease injector which comprises a lower shell. The oil pushing assembly is arranged on the lower shell, the oil pumping assembly shell is fixedly connected to the interior of the lower shell, the oil inlet one-way valve body is arranged in the lower shell, and the motor body is fixedly connected to the interior of the oil pumping assembly shell. During use, the controller body works, opening and closing of the oil inlet one-way valve body and the oil outlet one-way valve body are controlled, the intelligent lubricating mode can supplement lubricating oil to a bearing in real time during use, the workload of workers is relieved, meanwhile, the maintenance frequency and maintenance cost of equipment are reduced, and the service life of the equipment is prolonged. The controller body is used for controlling reasonable supplement of the lubricating oil, waste of the lubricating oil is reduced, the use cost is further reduced, new oil supply is continuously provided for the bearing, the operation efficiency and stability of equipment can be improved, and the service life of the equipment can be prolonged.

Description

An intrinsically safe automatic grease injector for mining applications Technical Field

[0001] This utility model relates to the field of grease injectors, and in particular to an intrinsically safe automatic grease injector for mining applications. Background Technology

[0002] In the mining industry, such as coal mines, the efficient and stable operation of machinery and equipment is a key factor in ensuring production safety and efficiency. During operation, many key components of machinery and equipment, such as bearings and gears, require continuous and appropriate amounts of lubricating grease to reduce friction, wear, and corrosion, thereby ensuring normal operation and extending the service life of the equipment.

[0003] In existing technologies, some bearings are located in narrow, hard-to-reach spaces, making lubrication operations extremely difficult. Workers are forced to crouch down, use special tools, or work in harsh environments with high temperatures, high humidity, or dust. This not only results in high labor intensity but also poses significant safety hazards. Furthermore, in actual use, insufficient lubricant can cause bearings to wear rapidly due to increased friction, potentially leading to equipment failure. Conversely, excessive lubricant can cause grease to overflow, wasting resources and potentially contaminating the equipment's interior, affecting the normal operation of other components, and causing unnecessary economic losses. Therefore, it is necessary to develop an intrinsically safe automatic grease injector for mining applications to solve these problems. Summary of the Invention

[0004] To overcome the problem that adding lubricant in certain special areas is inconvenient, increases the workload of staff, and that adding too much or too little lubricant will affect the operation of the bearing.

[0005] The technical solution of this utility model is as follows: an intrinsically safe automatic grease injector for mining, including a lower housing, and further including an oil pushing assembly disposed on the lower housing, an oil pump assembly housing fixedly connected inside the lower housing, an oil inlet check valve body disposed inside the lower housing, a motor body fixedly connected inside the oil pump assembly housing, a drive gear fixedly connected to the output end of the motor body, a lead screw gear meshing with the drive gear, a rotating lead screw fixedly connected to the lead screw gear, a lead screw slider threadedly connected to the rotating lead screw, a first magnet fixedly connected to the lead screw slider, a reed switch sensor body disposed inside the oil pump assembly housing, and a fixed... The system comprises a piston side handle fixedly connected to the lead screw slider, a piston rod body fixedly connected to the piston side handle, an oil outlet check valve body located at one end of the piston rod body, a controller body located on the lower housing, a rotating lead screw rotatably connected to the oil pump assembly housing, a piston side handle slidably connected to the oil pump assembly housing, and a piston rod body slidably connected to the oil pump assembly housing. Lubricating oil is pushed into the oil pump assembly housing by the oil pushing assembly. The motor body drives the drive gear to rotate, which in turn drives the rotating lead screw through the engagement of the drive gear and the lead screw gear. The controller body controls the opening of the inlet and outlet check valve bodies.

[0006] Preferably, the housing of the oil pump assembly has a limiting groove at the relative position of the rotating screw, and the rotating screw is rotatably connected to the groove.

[0007] Preferably, the pump assembly housing has a guide groove at the relative position of the piston side handle, and the piston side handle is slidably connected to the groove.

[0008] Preferably, the pump assembly housing has a through groove inside, and the piston rod body is slidably connected inside the through groove.

[0009] Preferably, an oil outlet pipe is threaded onto the housing of the oil pump assembly, and an oil outlet is fixedly connected to the bottom of the oil outlet pipe. A battery compartment is fixedly connected inside the lower housing.

[0010] Preferably, the oil-pushing assembly includes an upper cover body disposed on the top of the lower housing, a fixing block fixedly connected to the upper cover body, a flexible anti-detachment pull strap slidably connected to the upper cover body, a grease pack pressure plate disposed at one end of the flexible anti-detachment pull strap, a pressure spring disposed between the upper cover body and the grease pack pressure plate, and a sealing gasket disposed between the upper cover body and the lower housing. The fixing block is snapped onto the lower housing, and the pressure spring provides a pushing force to the grease pack pressure plate to squeeze the grease pack and replenish lubricating oil. The fixing block snaps onto the lower housing, so that the upper cover body is installed on the top of the lower housing.

[0011] Preferably, the lower housing has a slot for engaging with the fixing block at the relative position of the fixing block, and the fixing block is engaged with the slot.

[0012] Preferably, the upper cover body has a limiting groove at the relative position of the anti-detachment flexible pull strap, and the anti-detachment flexible pull strap is slidably connected to the groove.

[0013] The beneficial effects of this utility model are:

[0014] 1. During use, the controller operates to control the opening and closing of the inlet and outlet check valves. This intelligent lubrication method can replenish bearings with lubricating oil in real time, reducing the workload of operators, lowering the frequency and cost of equipment maintenance, and controlling the reasonable replenishment of lubricating oil through the controller to reduce oil waste, further reducing operating costs. It also provides a continuous supply of new oil to the bearings, improves the operating efficiency and stability of the equipment, and extends the service life of the equipment.

[0015] 2. By using the fixing blocks and slots to quickly install and disassemble the main body of the top cover, it is easier for staff to replace the grease pack, greatly reducing the difficulty of maintenance and replacement, alleviating the workload of staff, and enabling the equipment to be put into use more quickly, thereby improving production efficiency. Attached Figure Description

[0016] Figure 1 is a structural schematic diagram of one embodiment of the intrinsically safe automatic grease injector for mining according to this utility model;

[0017] Figure 2 is a cross-sectional structural diagram of the lower shell and the upper cover body in Figure 1;

[0018] Figure 3 is a structural schematic diagram of the disassembled lower shell and its connected components of this utility model;

[0019] Figure 4 is a cross-sectional structural schematic diagram of the oil pump assembly housing of this utility model;

[0020] Figure 5 is a structural schematic diagram of the pump assembly and its connected components of this utility model;

[0021] Figure 6 is a structural schematic diagram of the motor body and its connected components of this utility model;

[0022] Figure 7 is a schematic diagram of the structure of the oil-pushing component of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Lower housing; 21. Pump assembly housing; 22. Inlet check valve body; 23. Outlet check valve body; 24. Motor body; 25. Drive gear; 26. Lead screw gear; 27. Rotating lead screw; 28. Lead screw slider; 29. ​​First magnet; 210. Reed switch sensor body; 211. Piston side handle; 212. Piston rod body; 213. Controller body; 214. Oil outlet pipe; 215. Oil outlet; 216. Battery compartment; 31. Upper cover body; 32. Fixing block; 33. Anti-detachment flexible pull strap; 34. Oil pressure spring; 35. Grease packing pressure plate; 36. Sealing gasket. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Please refer to Figures 1-7. This utility model provides an embodiment: an intrinsically safe automatic grease injector for mining, including a lower housing 1, and further including an oil pushing assembly disposed on the lower housing 1, an oil pump assembly housing 21 fixedly connected inside the lower housing 1, an oil inlet check valve body 22 disposed inside the lower housing 1, a motor body 24 fixedly connected inside the oil pump assembly housing 21, a drive gear 25 fixedly connected to the output end of the motor body 24, a lead screw gear 26 meshing with the drive gear 25, a rotating lead screw 27 fixedly connected to the lead screw gear 26, a lead screw slider 28 threadedly connected to the rotating lead screw 27, a first magnet 29 fixedly connected to the lead screw slider 28, and a [missing information - likely a component or component] disposed inside the oil pump assembly housing 21. The system comprises a reed switch sensor body 210, a piston side handle 211 fixedly connected to a lead screw slider 28, a piston rod body 212 fixedly connected to the piston side handle 211, an oil outlet check valve body 23 located at one end of the piston rod body 212, a controller body 213 located on the lower housing 1, and a rotating lead screw 27 rotatably connected to the oil pump assembly housing 21. The piston side handle 211 is slidably connected to the oil pump assembly housing 21, and the piston rod body 212 is slidably connected to the oil pump assembly housing 21. Lubricating oil is pushed into the oil pump assembly housing 21 by the oil pushing assembly. The motor body 24 drives the drive gear 25 to rotate, which in turn drives the rotating lead screw 27 to rotate through the engagement of the drive gear 25 and the lead screw gear 26. The controller body 213 controls the opening of the inlet check valve body 22 and the outlet check valve body 23. During use, after setting the corresponding data on the controller body 213, the controller body 213 periodically starts the motor body 24. The motor body 24 drives the drive gear 25 to rotate. When the drive gear 25 rotates, it cooperates with the lead screw gear 26, causing the lead screw 27 to rotate on the pump assembly housing 21. When the lead screw 27 rotates, it causes the lead screw slider 28 to move downwards. The lead screw slider 28 is rigidly connected to the piston rod body 212 through the piston side handle 211, causing the piston rod body 212 to move downwards. After the piston rod body 212 moves downwards, the inlet check valve body 22 and the outlet check valve body 23... A cavity is formed between the one-way valve bodies 23. When the oil inlet one-way valve body 22 is opened, the oil pushing assembly works to squeeze out the lubricating oil stored in the grease bag. The lubricating oil enters the cavity between the oil inlet one-way valve body 22 and the oil outlet one-way valve body 23 through the opened oil inlet one-way valve body 22. When the lead screw slider 28 moves to the lower limit, the first magnet 29 is aligned with the bottom of the reed switch sensor body 210. The signal is transmitted to the controller body 213 through the reed switch sensor body 210, which controls the motor body 24 to drive the drive gear 25 to reverse, causing the lead screw slider 28 to move upward. At this time, the oil outlet one-way valve body 23 opens and the oil inlet one-way valve body 22 closes. The grease is squeezed out through the upwardly moving piston rod body 212.

[0026] Please refer to Figures 1-6. In this embodiment, the pump assembly housing 21 has a limiting groove at the relative position of the rotating screw 27. The rotating screw 27 is rotatably connected to the groove, which restricts the rotation of the rotating screw 27 and prevents it from tilting during rotation, thus affecting the movement of the screw slider 28. The pump assembly housing 21 also has a guiding groove at the relative position of the piston side handle 211. The piston side handle 211 is slidably connected to the groove, which limits the movement of the piston side handle 211 and prevents it from sliding too much, thus affecting the position of the adjusting piston rod body 212. The pump assembly housing 21 has a through groove inside, and the piston rod body 212 is slidably connected inside the through groove. While allowing lubricating oil to pass through the through groove, it restricts the movement of the piston rod body 212 to prevent the piston rod body 212 from tilting and affecting the position of its oil outlet check valve body 23. The pump assembly housing 21 is threaded with an oil outlet pipe 214, and the bottom of the oil outlet pipe 214 is fixedly connected with an oil outlet 215. The battery compartment 216 is fixedly connected inside the lower housing 1. During installation, the lower housing 1 is installed by threading the oil outlet 215 to the required pipe. During use, it replaces the effect of manual oil filling and lubrication.

[0027] Please refer to Figures 2 and 7. In this embodiment, the oil-pushing assembly includes an upper cover body 31 disposed on the top of the lower housing 1, a fixing block 32 fixedly connected to the upper cover body 31, an anti-detachment flexible pull strap 33 slidably connected to the upper cover body 31, a grease pack pressure plate 35 disposed at one end of the anti-detachment flexible pull strap 33, an oil pressure spring 34 disposed between the upper cover body 31 and the grease pack pressure plate 35, and a sealing gasket 36 disposed between the upper cover body 31 and the lower housing 1. The fixing block 32 is snapped onto the lower housing 1. The oil pressure spring 34 provides a pushing force to the grease pack pressure plate 35, squeezing the grease pack to replenish lubricating oil. The fixing block 32 is snapped onto the lower housing 1, so that the upper cover body 31 is installed and limited at the top of the lower housing 1. The oil pressure spring 34 presses the grease pack... Plate 35 provides downward elastic pressure oil auxiliary force to squeeze out lubricating oil for replenishment. The lower housing 1 has a locking groove for locking at the relative position of the fixing block 32. The fixing block 32 is locked in the groove. By locking the fixing block 32 with the groove, the installation of the upper cover body 31 can be completed quickly. During subsequent maintenance, the upper cover body 31 is rotated to drive the fixing block 32 to disengage from the lower housing 1, so that the staff can quickly remove the upper cover body 31 to maintain and replace the grease pack. The upper cover body 31 has a limiting groove at the relative position of the anti-detachment flexible pull strap 33. The anti-detachment flexible pull strap 33 is slidably connected to the groove. The groove restricts the sliding of the anti-detachment flexible pull strap 33 and prevents the anti-detachment flexible pull strap 33 from tilting, which would affect its squeezing of the grease pack pressure plate 35.

[0028] During operation, rotating the upper cover body 31 causes the fixing block 32 to disengage from the lower housing 1. The grease pack is then opened and placed on the upper end of the lower housing 1. The grease pack pressure plate 35 and the oil pressure spring 34 are placed above the grease pack. The upper cover body 31 is then closed. In use, after setting the corresponding data on the controller body 213, the controller body 213 periodically starts the motor body 24. The motor body 24 drives the drive gear 25 to rotate. When the drive gear 25 rotates, it engages with the lead screw gear 26, causing the lead screw 27 to rotate on the pump assembly housing 21. As the lead screw 27 rotates, it causes the lead screw slider 28 to move downwards. The lead screw slider 28 is rigidly connected to the piston rod body 212 via the piston side handle 211, causing the piston rod body 212 to move downwards. After the piston rod body 212 moves downwards, at this point… A cavity is formed between the inlet check valve body 22 and the outlet check valve body 23. When the inlet check valve body 22 is open, the oil pressure spring 34 provides a thrust to the grease pack pressure plate 35, squeezing out the lubricating oil stored in the grease pack. The lubricating oil enters the cavity between the inlet check valve body 22 and the outlet check valve body 23 through the open inlet check valve body 22. When the lead screw slider 28 moves to the lower limit, the first magnet 29 aligns with the bottom of the reed switch sensor body 210. The signal is transmitted to the controller body 213 through the reed switch sensor body 210, controlling the motor body 24 to reverse, driving the lead screw slider 28 to move upward. At this time, the outlet check valve body 23 opens and the inlet check valve body 22 closes. The grease is squeezed out through the upwardly moving piston rod body 212 and discharged to the bearing for lubrication through the oil outlet pipe 214 and the oil outlet 215.

[0029] Through the above steps, the controller body 213 operates during use, controlling the opening and closing of the oil inlet check valve body 22 and the oil outlet check valve body 23. This solves the problem that adding lubricant is inconvenient in some special areas, increasing the workload of the staff, while the amount of lubricant added too much or too little will affect the operation of the bearing.

Claims

1. A mining intrinsically safe automatic grease injector, comprising a lower housing (1), characterized in that: It also includes an oil-pushing assembly mounted on the lower housing (1), an oil pump assembly housing (21) fixedly connected inside the lower housing (1), an inlet check valve body (22) mounted inside the lower housing (1), an outlet check valve body (23) mounted inside the lower housing (1), a motor body (24) fixedly connected inside the oil pump assembly housing (21), a drive gear (25) fixedly connected to the output end of the motor body (24), a lead screw gear (26) meshing with the drive gear (25), a rotating lead screw (27) fixedly connected to the lead screw gear (26), a lead screw slider (28) threadedly connected to the rotating lead screw (27), a first magnet (29) fixedly connected to the lead screw slider (28), a reed switch sensor body (210) mounted inside the oil pump assembly housing (21), and a fixed connection The piston side handle (211) is connected to the lead screw slider (28), the piston rod body (212) is fixedly connected to the piston side handle (211), the controller body (213) is set on the lower housing (1), the rotating lead screw (27) is rotatably connected to the oil pump assembly housing (21), the piston side handle (211) is slidably connected to the oil pump assembly housing (21), the piston rod body (212) is slidably connected to the oil pump assembly housing (21), the oil pushing assembly pushes the lubricating oil into the oil pump assembly housing (21), the motor body (24) drives the drive gear (25) to rotate, the drive gear (25) and the lead screw gear (26) cooperate to drive the rotating lead screw (27) to rotate, and the controller body (213) controls the opening of the oil inlet check valve body (22) and the oil outlet check valve body (23).

2. The intrinsically safe automatic grease injector for mining as described in claim 1, characterized in that: The pump assembly housing (21) has a limiting groove at the relative position of the rotating screw (27), and the rotating screw (27) is rotatably connected to the groove.

3. The intrinsically safe automatic grease injector for mining as described in claim 1, characterized in that: The pump assembly housing (21) has a guide groove at the relative position of the piston side handle (211), and the piston side handle (211) is slidably connected to the groove.

4. The intrinsically safe automatic grease injector for mining as described in claim 1, characterized in that: The inside of the pump assembly housing (21) is provided with a through groove, and the piston rod body (212) is slidably connected inside the through groove.

5. The intrinsically safe automatic grease injector for mining as described in claim 1, characterized in that: An oil outlet pipe (214) is threaded onto the outer casing (21) of the oil pump assembly. An oil outlet port (215) is fixedly connected to the bottom of the oil outlet pipe (214). A battery compartment (216) is fixedly connected inside the lower casing (1).

6. The intrinsically safe automatic grease injector for mining as described in claim 1, characterized in that: The oil-pushing assembly includes an upper cover body (31) set on the top of the lower housing (1), a fixing block (32) fixedly connected to the upper cover body (31), a non-detaching flexible pull strap (33) slidably connected to the upper cover body (31), a grease pack pressure plate (35) set at one end of the non-detaching flexible pull strap (33), an oil pressure spring (34) set between the upper cover body (31) and the grease pack pressure plate (35), and a sealing gasket (36) set between the upper cover body (31) and the lower housing (1). The fixing block (32) is snapped onto the lower housing (1), and the oil pressure spring (34) provides a pushing force to the grease pack pressure plate (35) to squeeze the grease pack to replenish lubricating oil. The fixing block (32) is snapped onto the lower housing (1) so that the upper cover body (31) is installed on the top of the lower housing (1).

7. The intrinsically safe automatic grease injector for mining according to claim 6, characterized in that: The lower housing (1) has a slot for engaging with the fixed block (32) at a position opposite to the fixed block (32), and the fixed block (32) is engaged with the slot.

8. The intrinsically safe automatic grease injector for mining as described in claim 6, characterized in that: The upper cover body (31) has a limiting groove at the relative position of the anti-detachment flexible pull strap (33), and the anti-detachment flexible pull strap (33) is slidably connected to the groove.

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