Rapid oil injection device for thrust wheel

Abstract

The utility model provides a quick oiling device for thrust wheels, which relates to the technical field of thrust wheel maintenance and comprises an outer pipe, a pressing plate is arranged on the inner wall of the outer pipe, an inner pipe is rotatably connected to the inner wall of the outer pipe, the pressing plate is positioned inside the inner pipe and is in sliding connection with the inner wall of the inner pipe, an electric push rod is mounted at the right end of the outer pipe, and the electric push rod is connected with the outer pipe. The output end of the electric push rod is fixed to the pressing plate, an oil injection opening is formed in the left end of the outer pipe, a communicating pipe is installed at the oil injection opening, the other end of the communicating pipe is connected with an external hose, and a first sealing device is installed at the connecting position of the outer pipe and the oil injection opening. According to the rapid oil injection device for the thrust wheel, the electric push rod is arranged to drive the pressing plate to move, the pressing plate drives lubricating oil in the inner pipe to move, under the action of the pressure of the pressing plate, the lubricating oil in the inner pipe moves and leaves from the first sealing device, and simple and convenient rapid oil injection is achieved.

Description

Technical Field

[0001] The utility model relates to a rapid oil injection device, in particular to a rapid oil injection device for track rollers, and belongs to the technical field of track roller maintenance. Background Technique

[0002] Track rollers are used to support the weight of excavators or tractors, and at the same time roll on the guide rails of the crawler or the crawler plate surface. They are also used to limit the crawler and prevent lateral slippage. As a crawler weight-bearing component of an excavator or a tractor, the track roller structure often operates under extreme working conditions and bears great stress and wear due to the need to work in different environments. In order to ensure the stability of the track rollers, it is necessary to regularly inject grease to keep the track roller structure well lubricated.

[0003] In the Chinese patent application publication specification CN207034609U, a rapid oil injection device for track rollers is disclosed. By setting an air compressor, an oil storage tank and a T-shaped pipe, the side branch pipe of the T-shaped pipe is connected to the air inlet hole of the air compressor through an air hose. A first valve connecting pipe is arranged on the side branch pipe of the T-shaped pipe, and a second valve connecting pipe is arranged on the T-shaped pipe between the oil storage tank and the side branch pipe. By evacuating the air in the track roller, then closing the first valve connecting pipe and opening the second valve connecting pipe, the lubricating oil in the oil storage tank is sucked into the track roller, and the oil injection work of the track roller is quickly completed.

[0004] In the process of using the above patent, although rapid oil injection can be completed, when injecting oil, it is necessary to evacuate the air in the track roller and press the lubricating oil into the track roller through pressure. This method requires good sealing between the device and the track roller, and the operation is cumbersome. At the same time, after the oil injection is completed, the oil at the port of the T-shaped pipe cannot be recovered, and long-term contact with air will cause dust in the air to contaminate the lubricating oil in this area, resulting in waste of lubricating oil.

[0005] Therefore, a rapid oil injection device for track rollers is proposed here. Content of the Utility Model

[0006] The utility model provides a rapid oil injection device for track rollers to achieve simple and convenient rapid oil injection, and at the same time recover and seal the unused lubricating oil after the oil injection is completed.

[0007] The utility model is realized through the following technical solutions: a rapid oil injection device for track rollers includes an outer pipe, a pressing plate is arranged on the inner wall of the outer pipe, an inner pipe is rotatably connected to the inner wall of the outer pipe, the pressing plate is located inside the inner pipe, and the pressing plate is slidably connected to the inner wall of the inner pipe. An electric push rod is installed at the right end of the outer pipe, and the output end of the electric push rod is fixed to the pressing plate. An oil injection port is opened at the left end of the outer pipe, and a connecting pipe is installed at the position of the oil injection port. The other end of the connecting pipe is connected to an external hose;

[0008] A first sealing device is installed at the connection position between the outer tube and the oil injection port. An oil replenishing port is formed on the outer surface of the outer tube, and an oil replenishing pipe is fixed at the position of the oil replenishing port. The oil replenishing pipe is connected to an external hose, and a second sealing device is installed at the connection position between the outer tube and the oil replenishing port.

[0009] The first sealing device includes a first connecting pipe installed at the oil injection port. A first sealing plug is installed on the inner wall of the first connecting pipe. The first sealing plug is slidably connected to the first connecting pipe. A first spring is installed on the right side surface of the first sealing plug, and the other end of the first spring is fixed to the first sealing plug.

[0010] Furthermore, a sliding groove is formed on the inner wall of the first sealing plug. The sliding groove does not penetrate the first sealing plug. A slider is slidably connected to the inner wall of the sliding groove. The slider is slidably connected to the sliding groove. By the sliding connection between the slider and the sliding groove, the stability of the first sealing plug during movement is maintained. At the same time, through the limitation of the sliding groove, the first sealing plug is prevented from falling off.

[0011] The second sealing device includes a second connecting pipe installed at the oil replenishing port. A second sealing plug is installed on the inner wall of the second connecting pipe. A second spring is installed on the upper surface of the second sealing plug, and the other end of the second spring is fixed to the second connecting pipe.

[0012] Furthermore, a sliding plate is fixed on the upper surface of the second sealing plug. The sliding plate is slidably connected to the second connecting pipe. A limiting block is fixed at the top end of the sliding plate. The size of the limiting block exceeds the size of the second connecting pipe. A baffle is installed on the upper surface of the limiting block. By the sliding connection between the sliding plate and the second connecting pipe, the stability of the second sealing plug during movement is maintained. At the same time, the limiting block can limit the moving distance of the second sealing plug to prevent the second sealing plug from falling off.

[0013] A first communication port is formed at the left end of the inner tube. A second communication port is formed on the outer surface of the inner tube. A rubber sealing ring is installed on the left side surface of the pressing plate.

[0014] A communication groove is formed on the right side surface of the outer tube. The communication groove penetrates the outer tube. An adjusting rod is fixed on the right side surface of the inner tube. The adjusting rod is slidably connected to the communication groove.

[0015] The utility model provides a quick oil injection device for a track roller, and the beneficial effects thereof are as follows:

[0016] 1. For this quick oil injection device for a track roller, by setting an electric push rod to drive the pressing plate to move, the pressing plate drives the lubricating oil in the inner tube to move. Under the action of the pressure of the pressing plate, the lubricating oil inside the inner tube moves and leaves through the first sealing device, realizing simple and convenient quick oil injection.

[0017] 2. For this idler quick oil injection device, by setting a pressing plate, after the oil injection is completed, the pressing plate moves in the opposite direction driven by the electric push rod, and the residual lubricating oil in the communication port flows back to the inside of the inner tube under the drive of the pressure. Then, the inner tube is driven to rotate by the adjusting rod. The rotation of the inner tube causes the first communication port to no longer communicate with the first sealing device, and the second communication port to no longer communicate with the second sealing device. Thus, the inside of the inner tube is hermetically isolated from the outside, achieving the recovery and sealed storage of the unused lubricating oil after the oil injection is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a schematic diagram of the internal structure of the outer tube of the present utility model;

[0020] Figure 3 For the present utility model Figure 2 is an enlarged schematic diagram of the structure at A in;

[0021] Figure 4 For the present utility model Figure 2 is an enlarged schematic diagram of the structure at B in.

[0022] DESCRIPTION OF THE REFERENCE NUMERALS

[0023] 1. Outer tube; 2. Pressing plate; 3. Inner tube; 4. Electric push rod; 5. Connecting pipe;

[0024] 6. First sealing device; 601. First connecting pipe; 602. First sealing plug; 603. First spring; 604. Slide block;

[0025] 7. Supplementary oil pipe;

[0026] 8. Second sealing device; 801. Second connecting pipe; 802. Second sealing plug; 803. Second spring; 804. Slide plate; 805. Limiting block; 806. Baffle;

[0027] 9. First communication port; 10. Second communication port; 11. Rubber sealing ring; 12. Communication groove; 13. Adjusting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1 to 4, an embodiment of the utility model provides a quick oil injection device for a track roller, which includes an outer tube 1. A pressing plate 2 is arranged on the inner wall of the outer tube 1. An inner tube 3 is rotatably connected to the inner wall of the outer tube 1. The pressing plate 2 is located inside the inner tube 3 and is slidably connected to the inner wall of the inner tube 3. An electric push rod 4 is installed at the right end of the outer tube 1, and the output end of the electric push rod 4 is fixed to the pressing plate 2. An oil injection port is opened at the left end of the outer tube 1, and a connecting pipe 5 is installed at the position of the oil injection port. The other end of the connecting pipe 5 is connected to an external hose.

[0030] A first sealing device 6 is installed at the connection position between the outer tube 1 and the oil injection port. An oil replenishing port is opened on the outer surface of the outer tube 1, and an oil replenishing pipe 7 is fixed at the position of the oil replenishing port. The oil replenishing pipe 7 is connected to an external hose. A second sealing device 8 is installed at the connection position between the outer tube 1 and the oil replenishing port.

[0031] Please refer specifically to Figure 2 , Figure 3 and Figure 4 , the first sealing device 6 includes a first connecting pipe 601 installed at the oil injection port. A first sealing plug 602 is installed on the inner wall of the first connecting pipe 601. The first sealing plug 602 is slidably connected to the first connecting pipe 601. A first spring 603 is installed on the right side surface of the first sealing plug 602, and the other end of the first spring 603 is fixed to the first sealing plug 602. A sliding groove is opened on the inner wall of the first sealing plug 602. The sliding groove does not penetrate the first sealing plug 602. A slider 604 is slidably connected to the inner wall of the sliding groove. The slider 604 is slidably connected to the sliding groove. By the sliding connection between the slider 604 and the sliding groove, the stability of the first sealing plug 602 during movement is maintained. At the same time, through the limitation of the sliding groove, the first sealing plug 602 is prevented from falling off.

[0032] Please refer specifically to Figure 2 , Figure 3 and Figure 4 , the second sealing device 8 includes a second connecting pipe 801 installed at the oil replenishing port. A second sealing plug 802 is installed on the inner wall of the second connecting pipe 801. A second spring 803 is installed on the upper surface of the second sealing plug 802, and the other end of the second spring 803 is fixed to the second connecting pipe 801. A sliding plate 804 is fixed on the upper surface of the second sealing plug 802. The sliding plate 804 is slidably connected to the second connecting pipe 801. A limiting block 805 is fixed at the top end of the sliding plate 804. The size of the limiting block 805 exceeds the size of the second connecting pipe 801. A baffle 806 is installed on the upper surface of the limiting block 805. By the sliding connection between the sliding plate 804 and the second connecting pipe 801, the stability of the second sealing plug 802 during movement is maintained. At the same time, the limiting block 805 can limit the moving distance of the second sealing plug 802 to prevent the second sealing plug 802 from falling off.

[0033] Please refer specifically to Figure 2 , Figure 3 and Figure 4, a first communication port 9 is provided at the left end of the inner tube 3, a second communication port 10 is provided on the outer surface of the inner tube 3, a rubber sealing ring 11 is installed on the left side surface of the pressing plate 2, a communication groove 12 is provided on the right side surface of the outer tube 1, the communication groove 12 penetrates through the outer tube 1, and an adjusting rod 13 is fixed to the right side surface of the inner tube 3. The adjusting rod 13 is slidably connected to the communication groove 12.

[0034] When the utility model is in use: when refueling, rotate the adjusting rod 13. The movement of the adjusting rod 13 drives the inner tube 3 to rotate. The rotation of the inner tube 3 drives the first communication port 9 to communicate with the first sealing device 6. At this time, the second communication port 10 does not communicate with the second sealing device 8. Start the electric push rod 4. The output end of the electric push rod 4 drives the pressing plate 2 to move. The movement of the pressing plate 2 drives the lubricating oil in the inner tube 3 to move. Under the action of the pressure of the pressing plate 2, the lubricating oil inside the inner tube 3 moves. At the same time, under the action of the pressure, the lubricating oil pushes the first sealing plug 602 to move. The first sealing plug 602 releases the seal of the first connecting pipe 601. The lubricating oil sprays out from the first connecting pipe 601 at high speed under the action of the pressure, realizing simple and convenient rapid refueling.

[0035] After the refueling is completed, the pressing plate 2 moves in the reverse direction driven by the electric push rod 4. The residual lubricating oil in the communication port flows back into the interior of the inner tube 3 under the drive of the pressure. Then, drive the inner tube 3 to rotate through the adjusting rod 13. The rotation of the inner tube 3 makes the first communication port 9 no longer communicate with the first sealing device 6, and the second communication port 10 no longer communicate with the second sealing device 8, thereby realizing the airtight isolation between the interior of the inner tube 3 and the outside world, and realizing the recovery and sealed storage of the unused lubricating oil after the refueling is completed.

[0036] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art of this industry should understand that the utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection claimed by the utility model is defined by the appended claims and their equivalents.

Claims

1. A quick oil filling device for track rollers, comprising an outer tube (1), characterized in that: The inner wall of the outer tube (1) is provided with a pressing plate (2). The inner wall of the outer tube (1) is rotatably connected to an inner tube (3). The pressing plate (2) is located inside the inner tube (3). The pressing plate (2) is slidably connected to the inner wall of the inner tube (3). An electric push rod (4) is installed at the right end of the outer tube (1). The output end of the electric push rod (4) is fixed to the pressing plate (2). An oil injection port is opened at the left end of the outer tube (1). A connecting pipe (5) is installed at the position of the oil injection port. The other end of the connecting pipe (5) is connected to an external hose. A first sealing device (6) is installed at the connection position of the outer tube (1) and the oil injection port. An oil replenishing port is opened on the outer surface of the outer tube (1). An oil replenishing pipe (7) is fixed at the position of the oil replenishing port. The oil replenishing pipe (7) is connected to an external hose. A second sealing device (8) is installed at the connection position of the outer tube (1) and the oil replenishing port.

2. The quick oil injection device for carrier rollers according to claim 1, wherein: The first sealing device (6) includes a first connecting pipe (601) installed at the oil injection port. A first sealing plug (602) is installed on the inner wall of the first connecting pipe (601). The first sealing plug (602) is slidably connected to the first connecting pipe (601). A first spring (603) is installed on the right side surface of the first sealing plug (602). The other end of the first spring (603) is fixed to the first sealing plug (602).

3. The quick oil injection device for track roller according to claim 2, characterized in that: A chute is opened on the inner wall of the first sealing plug (602). The chute does not penetrate the first sealing plug (602). A slider (604) is slidably connected to the inner wall of the chute. The slider (604) is slidably connected to the chute.

4. A quick oil filling device for track rollers according to claim 1, characterized in that: The second sealing device (8) includes a second connecting pipe (801) installed at the oil replenishing port. A second sealing plug (802) is installed on the inner wall of the second connecting pipe (801). A second spring (803) is installed on the upper surface of the second sealing plug (802). The other end of the second spring (803) is fixed to the second connecting pipe (801).

5. A quick oil filling device for track rollers according to claim 4, characterized in that: A sliding plate (804) is fixed on the upper surface of the second sealing plug (802). The sliding plate (804) is slidably connected to the second connecting pipe (801). A limiting block (805) is fixed at the top end of the sliding plate (804). The size of the limiting block (805) exceeds the size of the second connecting pipe (801). A baffle (806) is installed on the upper surface of the limiting block (805).

6. The quick oil filling device for track rollers according to claim 1, wherein: A first communication port (9) is opened at the left end of the inner tube (3). A second communication port (10) is opened on the outer surface of the inner tube (3). A rubber sealing ring (11) is installed on the left side surface of the pressing plate (2).

7. The quick oil injection device for track roller according to claim 1, characterized in that: A communication groove (12) is opened on the right side surface of the outer tube (1). The communication groove (12) penetrates the outer tube (1). An adjusting rod (13) is fixed on the right side surface of the inner tube (3). The adjusting rod (13) is slidably connected to the communication groove (12).

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