Lubricating device for maintenance of coal mine electromechanical equipment
By incorporating a valve structure into the lubrication device, air is used to replace lubricating oil and drain the lubricating oil from the hose, thus solving the problem of increased hose weight after lubrication and achieving convenient hose storage and improved safety.
Patent Information
- Application Number
- CN202520561586.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-03-28
AI Technical Summary
Existing lubrication devices leave lubricating oil residue inside the hose after lubrication, increasing the hose's weight and making it inconvenient to wind and store.
A lubrication device was designed that uses a valve structure between the oil pump and the hose to replace the lubricating oil with air to drain the lubricating oil from the hose, thereby achieving lubricating oil recovery, reducing the weight of the hose, and making it easier to store.
It effectively drains the lubricating oil from the hose, reduces the hose's weight, improves the cleanliness and safety of the lubrication device, and facilitates the winding and storage of the hose.
Smart Images

Figure CN223709285U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a lubrication device, specifically a lubrication device for the maintenance of coal mine electromechanical equipment, and belongs to the technical field of lubrication devices. Background Technology
[0002] Coal mine electromechanical equipment refers to the mechanical and electrical equipment used in the coal mine production and transportation process. During operation, the lubricating oil inside the coal mine electromechanical equipment will be consumed, so it is necessary to add lubricating oil regularly to ensure the stable and efficient operation of the equipment. A typical lubrication device mainly consists of an oil storage tank, an oil pump, a hose, and an oil injection head at the end of the hose. During lubrication, the oil injection head is connected to the lubricating oil filling joint on the electromechanical equipment. Then, by starting the oil pump, the oil pump draws lubricating oil from the oil storage tank and injects it into the interior of the electromechanical equipment through the hose and the oil injection head, thereby achieving lubrication of the electromechanical equipment.
[0003] However, after lubrication, a certain amount of lubricating oil will remain inside the hose. When the hose is not in use, it needs to be coiled up and stored. The presence of lubricating oil inside the hose will increase its weight, making it inconvenient to coil up and store the hose. Utility Model Content
[0004] The purpose of this utility model is to provide a lubrication device for the maintenance of coal mine electromechanical equipment in order to solve the above problems. When lubrication is not required, the lubricating oil inside the hose can be drained, thereby reducing the weight of the hose and making it easier to wind and store.
[0005] This utility model achieves the above-mentioned objective through the following technical solution: a lubrication device for the maintenance of coal mine electromechanical equipment, comprising a base plate, two support plates fixedly connected to the base plate, a common oil storage tank fixedly connected between the two support plates, a tank lid snapped onto the top of the oil storage tank, a lubrication structure provided on one of the support plates, the lubrication structure comprising an oil injection pump and a first connecting pipe, the oil injection pump being installed at the top of one of the support plates, the first connecting pipe being fixedly connected to the oil injection pump, a flexible hose being fixedly connected to one end of the first connecting pipe, an oil injection head being fixedly connected to the end of the flexible hose, a second connecting pipe being detachably connected to the oil injection pump, a long pipe being fixedly connected to the bottom of the second connecting pipe, a first valve being installed on the long pipe, a short pipe being fixedly connected to the bottom of the second connecting pipe, a second valve being installed on the short pipe, and an add-in connector being installed on the tank lid.
[0006] Preferably, the long tube is fixedly connected to the bucket lid, and the short tube is fixedly connected to the bucket lid.
[0007] Preferably, the support plate has an L-shaped cross-section, and the bottom of the oil storage tank has a conical shape.
[0008] Preferably, one of the support plates is provided with a pipe-receiving structure, the pipe-receiving structure includes a connecting column and a locking block, a connecting column is fixedly connected to the side of one of the support plates near the oil storage tank, a locking block is engaged on the connecting column, a baffle is fixedly connected to the locking block, and a hose is wound around the connecting column.
[0009] Preferably, a pressure block is slidably connected to the card block, the pressure block is provided with a guide groove, two limiting blocks are slidably connected to the pressure block, a guide shaft is fixedly connected to the limiting block, the guide shaft extends into the interior of the guide groove and is slidably connected to the pressure block, one end of the limiting block is engaged with the connecting post, and a spring abuts against the pressure block and the card block.
[0010] Preferably, the cross-section of one end of the card block is trapezoidal, the cross-section of the baffle as a whole is L-shaped, and the cross-section of one end of the limiting block is trapezoidal.
[0011] Preferably, the bucket lid is provided with a shielding structure, the shielding structure including a threaded sleeve and connecting blocks. The threaded sleeve is threadedly connected to the bucket lid, and multiple connecting blocks are fixedly connected to the outer side of the threaded sleeve. The multiple connecting blocks are fixedly connected to the inner side of the shielding cover.
[0012] Preferably, a protruding plate is fixedly connected to the center of the top of the shield, and the plurality of connecting blocks are arranged in a circumferential array about the center of the threaded sleeve.
[0013] Preferably, a filter screen is engaged on the bucket lid, and the filter screen abuts against the threaded sleeve.
[0014] Preferably, a handle is fixedly connected to the top of the base plate, and four casters are installed at the bottom of the base plate.
[0015] The beneficial effects of this utility model are as follows: During use, when lubrication of electromechanical equipment is required, the oil injection head is connected to the lubricating oil inlet on the equipment. Then, the first valve is opened and the second valve is closed. The oil injection pump is then activated, causing the lubricating oil from the storage tank to enter the long pipe, then the second connecting pipe, then the first connecting pipe, and finally the hose. The lubricating oil is then injected into the equipment through the oil injection head, thus achieving lubrication. When lubrication is not required, the lubricating oil can be applied to the equipment. When lubricating, the oil inlet head can be pulled out from the inlet connector on the electromechanical equipment and inserted into the inlet connector on the tank lid. Then, the first valve is closed and the second valve is opened. Then, the oil pump is started again. Since the bottom end of the short pipe does not contact the lubricating oil, air will enter the inside of the short pipe under the action of the oil pump. During the flow of air, it will replace the position of the lubricating oil, thereby discharging the lubricating oil inside the hose and finally returning to the inside of the oil storage tank through the inlet connector for collection. Therefore, when lubrication is not needed, the lubricating oil inside the hose can be emptied, thereby reducing the weight of the hose and making it easier to wind and store. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 for Figure 1 The enlarged schematic diagram of part A shown below;
[0018] Figure 3 This is a schematic diagram of the connection structure between the long pipe and the first valve of this utility model;
[0019] Figure 4 for Figure 3 The enlarged schematic diagram of section B is shown below;
[0020] Figure 5 This is a schematic diagram of the connection structure between the connecting column and the baffle of this utility model;
[0021] Figure 6 for Figure 5 The enlarged schematic diagram of section C is shown.
[0022] In the diagram: 1. Base plate; 2. Support plate; 3. Oil storage tank; 4. Tank lid; 5. Lubrication structure; 501. Oil pump; 502. First connecting pipe; 503. Hose; 504. Oil injection head; 505. Second connecting pipe; 506. Long pipe; 507. First valve; 508. Short pipe; 509. Second valve; 510. Addition connector; 6. Pipe retraction structure; 601. Connecting column; 602. Locking block; 603. Baffle; 604. Pressure block; 605. Guide groove; 606. Guide shaft; 607. Limiting block; 608. Spring; 7. Shielding structure; 701. Threaded sleeve; 702. Connecting block; 703. Shielding cover; 704. Protruding plate; 8. Filter screen; 9. Handle; 10. Casters. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1 , Figure 2 and Figure 3 As shown, a lubrication device for the maintenance of coal mine electromechanical equipment includes a base plate 1, on which two support plates 2 are fixedly connected. The support plates 2 have an L-shaped cross-section. An oil storage tank 3 is fixedly connected between the two support plates 2. A tank cover 4 is snapped onto the top of the oil storage tank 3. A lubrication structure 5 is provided on one of the support plates 2. The lubrication structure 5 includes an oil injection pump 501 and a first connecting pipe 502. The oil injection pump 501 is installed at the top of one of the support plates 2, and the first connecting pipe 502 is fixedly connected to the oil injection pump 501. One end of 02 is fixedly connected to a hose 503, and the end of the hose 503 is fixedly connected to an oil injection head 504. A second connecting pipe 505 is detachably connected to the oil injection pump 501. A long pipe 506 is fixedly connected to the bottom end of the second connecting pipe 505. The long pipe 506 is fixedly connected to the barrel cover 4. A first valve 507 is installed on the long pipe 506. A short pipe 508 is fixedly connected to the bottom end of the second connecting pipe 505. The short pipe 508 is fixedly connected to the barrel cover 4. A second valve 509 is installed on the short pipe 508. An adder connector 510 is installed on the barrel cover 4.
[0025] As a technical optimization solution of this utility model, such as Figure 3 As shown, the bottom of the oil storage tank 3 has a conical structure. The oil storage tank 3 can store lubricating oil. By setting its bottom to a conical structure, the lubricating oil inside can easily gather at the bottom of the long pipe 506, thus facilitating the flow of lubricating oil into the interior of the long pipe 506.
[0026] As a technical optimization solution of this utility model, such as Figure 2 , Figure 5 and Figure 6 As shown, one of the support plates 2 is provided with a hose-receiving structure 6, which includes a connecting post 601 and a locking block 602. The connecting post 601 is fixedly connected to one of the support plates 2 near the oil storage tank 3. The hose 503 can be wound around the connecting post 601 to achieve the winding and storage of the hose 503. The locking block 602 is engaged on the connecting post 601. Since the cross-section of one end of the locking block 602 is trapezoidal, it can play a guiding role when the locking block 602 and the connecting post 601 are engaged. A baffle 603 is fixedly connected to the locking block 602. The overall cross-section of the baffle 603 is L-shaped. The baffle 603 can block the wound hose 503 and prevent the hose 503 from slipping off the connecting post 601.
[0027] As a technical optimization solution of this utility model, such as Figure 2 , Figure 5 and Figure 6 As shown, a pressure block 604 is slidably connected to the locking block 602. The pressure block 604 is provided with a guide groove 605. Two limiting blocks 607 are slidably connected to the pressure block 604. Since the cross-section of one end of the limiting block 607 is trapezoidal, it can play a guiding role when the limiting block 607 and the connecting post 601 are engaged. A guide shaft 606 is fixedly connected to the limiting block 607. The guide shaft 606 extends into the interior of the guide groove 605 and is slidably connected to the pressure block 604. One end of the limiting block 607 is engaged with the connecting post 601. A spring 608 abuts between the pressure block 604 and the locking block 602. Therefore, by pressing the pressure block 604, the baffle 603 can be quickly removed from one side of the hose 503, so that the hose 503 can be easily wound around the connecting post 601.
[0028] As a technical optimization solution of this utility model, such as Figure 1 , Figure 3 and Figure 4 As shown, the barrel lid 4 is provided with a shielding structure 7, which includes a threaded sleeve 701 and connecting blocks 702. The threaded sleeve 701 is threadedly connected to the barrel lid 4, and multiple connecting blocks 702 are fixedly connected to the outer side of the threaded sleeve 701. The multiple connecting blocks 702 are arranged in a circumferential array about the middle of the threaded sleeve 701. The multiple connecting blocks 702 are fixedly connected to the inner side of the shielding cover 703. The shielding cover 703 can shield the oil filling port on the barrel lid 4, thereby preventing liquid from entering the interior of the oil storage tank 3 and contaminating the lubricating oil.
[0029] As a technical optimization solution of this utility model, such as Figure 1 and Figure 4As shown, a protruding plate 704 is fixedly connected to the middle of the top of the shield 703. By holding the protruding plate 704, the shield 703 can be easily rotated, thereby making it easy to unscrew the threaded sleeve 701 from the barrel cover 4. After unscrewing the threaded sleeve 701, it is convenient to add lubricating oil into the oil storage tank 3.
[0030] As a technical optimization solution of this utility model, such as Figure 4 As shown, a filter screen 8 is engaged on the lid 4, and the filter screen 8 abuts against the threaded sleeve 701, thus preventing debris from entering the interior of the oil storage tank 3.
[0031] As a technical optimization solution of this utility model, such as Figure 1 As shown, by pushing the base plate 1 with the hand handle 9, the four moving wheels 10 will roll on the ground, thus facilitating the movement of the lubrication device.
[0032] In use, the base plate 1 can be pushed by the hand handle 9, and the four moving wheels 10 will roll on the ground, making it easy to push the lubrication device to the vicinity of the coal mine electromechanical equipment that needs lubrication. When the electromechanical equipment needs lubrication, the pressure block 604 can be pressed, the spring 608 will retract, and the movement of the pressure block 604 will drive the guide groove 605 to move. At the same time, the movement of the guide groove 605 will drive the two guide shafts 606 to move. The guide shafts 606 will drive the limiting block 607 to move away from the connecting column 601. When the end of the limiting block 607 is not engaged with the connecting column 601, the locking block 602 can be pulled out from the inside of the connecting column 601. Then, the baffle 603 can be moved to prevent the hose 503 wrapped around the connecting column 601 from entering. The lubricant is then removed from the connecting post 601, and the grease filler head 504 is connected to the lubricant filling connector on the electromechanical equipment. The first valve 507 is then opened, and the second valve 509 is closed. The grease filler pump 501 is then activated. Under the action of the grease filler pump 501, the lubricant inside the oil reservoir 3 enters the long pipe 506, then the second connecting pipe 505, then the first connecting pipe 502 via the grease filler pump 501, then the hose 503, and finally injected into the electromechanical equipment through the grease filler head 504, thus lubricating the equipment. When lubrication is no longer required, the grease filler head 504 can be disconnected from the equipment. The lubricant is pulled out from the adder on the equipment and inserted into the adder 510 on the lid 4. Then, the first valve 507 is closed and the second valve 509 is opened. The oil pump 501 is then restarted. Since the bottom end of the short tube 508 is not in contact with the lubricating oil, air will enter the short tube 508 under the action of the oil pump 501. During the flow, the air will replace the position of the lubricating oil, thereby discharging the lubricating oil inside the hose 503. Finally, the lubricating oil will re-enter the oil storage tank 3 through the adder 510 on the lid 4 for collection. Therefore, the lubricating oil inside the hose 503 can be emptied when lubrication is not needed, thereby reducing the weight of the hose 503 and facilitating the winding and storage of the hose 503. When the lubricating oil inside the hose 503 is not needed... After the oil is drained, the hose 503 can be wound around the connecting post 601. Once the hose 503 is wound, the locking block 602 engages with the connecting post 601, thereby preventing the baffle 603 from blocking the hose 503 and preventing it from slipping off the connecting post 601 during storage. Storage of the hose 503 prevents it from becoming tangled, improving the cleanliness of the lubrication device and preventing damage from dragging on the ground, thus enhancing safety. When adding lubricating oil to the oil storage tank 3, the shield 703 can be rotated by holding the protruding plate 704. The shield 703, through multiple connecting blocks 702, drives the threaded sleeve 701 to rotate. As the threaded sleeve 701 continues to rotate, it will separate from the tank cover 4.Then, lubricating oil can be added to the inside of the oil reservoir 3. The filter screen 8 prevents impurities from entering the oil reservoir 3. After adding the oil, the threaded sleeve 701 can be threaded onto the reservoir lid 4. Because there is a certain gap between the threaded sleeve 701 and the shield 703, the atmospheric pressure inside and outside the oil reservoir 3 can be balanced.
[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A lubrication device for the maintenance of electromechanical equipment in coal mines, comprising a base plate (1), characterized in that: Two support plates (2) are fixedly connected to the base plate (1), and the same oil storage tank (3) is fixedly connected between the two support plates (2). The top of the oil storage tank (3) is fitted with a tank lid (4). One of the support plates (2) is provided with a lubrication structure (5). The lubrication structure (5) includes an oil injection pump (501) and a first connecting pipe (502). The top of one of the support plates (2) is equipped with an oil injection pump (501), and the first connecting pipe (502) is fixedly connected to the oil injection pump (501). One end of the first connecting pipe (502) is connected to the oil injection pump (501). A hose (503) is fixedly connected to one end of the pump (501), and an oil injection head (504) is fixedly connected to the end of the hose (503). A second connecting pipe (505) is detachably connected to the oil injection pump (501). A long pipe (506) is fixedly connected to the bottom end of the second connecting pipe (505). A first valve (507) is installed on the long pipe (506). A short pipe (508) is fixedly connected to the bottom end of the second connecting pipe (505). A second valve (509) is installed on the short pipe (508). An adder (510) is installed on the bucket cover (4).
2. The lubrication device for maintaining coal mine electromechanical equipment according to claim 1, characterized in that: The long tube (506) is fixedly connected to the bucket lid (4), and the short tube (508) is fixedly connected to the bucket lid (4).
3. A lubrication device for the maintenance of coal mine electromechanical equipment according to claim 1, characterized in that: The support plate (2) has an L-shaped cross-section, and the bottom of the oil storage tank (3) has a conical structure.
4. A lubrication device for the maintenance of coal mine electromechanical equipment according to claim 1, characterized in that: One of the support plates (2) is provided with a pipe receiving structure (6), the pipe receiving structure (6) includes a connecting column (601) and a locking block (602), one of the support plates (2) is fixedly connected to the side near the oil storage tank (3) with the connecting column (601) and the locking block (602) engaged on the connecting column (601), the locking block (602) is fixedly connected to the locking block (602) with a baffle (603), and a hose (503) is wound around the connecting column (601).
5. A lubrication device for maintaining coal mine electromechanical equipment according to claim 4, characterized in that: A pressure block (604) is slidably connected to the locking block (602). The pressure block (604) is provided with a guide groove (605). Two limiting blocks (607) are slidably connected to the pressure block (604). A guide shaft (606) is fixedly connected to the limiting block (607). The guide shaft (606) extends into the interior of the guide groove (605) and is slidably connected to the pressure block (604). One end of the limiting block (607) is engaged with the connecting post (601). A spring (608) abuts against the pressure block (604) and the locking block (602).
6. A lubrication device for maintaining coal mine electromechanical equipment according to claim 5, characterized in that: The cross-section of one end of the card block (602) is trapezoidal, the cross-section of the baffle (603) as a whole is L-shaped, and the cross-section of one end of the limiting block (607) is trapezoidal.
7. A lubrication device for the maintenance of coal mine electromechanical equipment according to claim 1, characterized in that: The bucket lid (4) is provided with a shielding structure (7), which includes a threaded sleeve (701) and a connecting block (702). The bucket lid (4) is threadedly connected to the threaded sleeve (701), and multiple connecting blocks (702) are fixedly connected to the outside of the threaded sleeve (701). The multiple connecting blocks (702) are fixedly connected to the inside of the shield (703).
8. A lubrication device for maintaining coal mine electromechanical equipment according to claim 7, characterized in that: A protruding plate (704) is fixedly connected to the middle of the top of the shield (703), and a plurality of connecting blocks (702) are arranged in a circumferential array about the middle of the threaded sleeve (701).
9. A lubrication device for maintaining coal mine electromechanical equipment according to claim 7, characterized in that: A filter screen (8) is engaged on the lid (4), and the filter screen (8) abuts against the threaded sleeve (701).
10. A lubrication device for the maintenance of coal mine electromechanical equipment according to claim 1, characterized in that: The top of the base plate (1) is fixedly connected to a handle (9), and four casters (10) are installed at the bottom of the base plate (1).