Oiling device for automobile bearing

Abstract

The oiling device for the automobile bearing comprises a storage cylinder, an electric push rod is fixedly connected to the outer portion of the storage cylinder, a piston rod of the electric push rod penetrates through the storage cylinder in a sliding mode, the tail end of the piston rod of the electric push rod is fixedly connected with a piston, and the piston is connected into the storage cylinder in a sliding mode. A switch and an oil inlet valve are fixedly connected to the exterior of the storage barrel, a first sealing piece is arranged at the outlet end of the oil inlet valve, an oil outlet pipe is fixedly connected to the tail end of the storage barrel, a second sealing piece is arranged at the inlet end of the oil outlet pipe, and a connector is fixedly connected to the tail end of the oil outlet pipe. And a spray head is arranged in the joint.

Description

Technical Field

[0001] This utility model belongs to the field of automotive technology and relates to an oil injection device for automotive bearings. Background Technology

[0002] Patent publication number CN219367390U discloses a novel automotive bearing oil injection device, including an automotive bearing mounting base and an automotive bearing oil injector; the top of the automotive bearing mounting base is movably connected to the outer side of the bottom of the automotive bearing oil injector. This facilitates oil injection into the automotive bearing, ensuring even oil distribution and providing sufficient oil volume to meet the lubrication needs of the bearing. The tip of the oil outlet pipe can be directly inserted into the oil injection hole on the outer ring of the bearing, making injection convenient and preventing leakage. The device also features a hand-operated bladder that increases the pressure of the lubricating oil inside by the auxiliary protrusion, resulting in a smooth and even output of lubricating oil.

[0003] However, this patent requires manual squeezing of the hand-operated bladder when lubricating the bearing, resulting in low lubrication efficiency and unstable pressure. Therefore, it is particularly necessary to design an automatic lubrication device for automotive bearings that can perform automatic lubrication with uniform pressure to solve the above problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides an oil injection device for automotive bearings.

[0005] To achieve the above objectives, the technical solution of this utility model is: an oil injection device for automotive bearings, comprising a storage cylinder, an electric push rod fixedly connected to the outside of the storage cylinder, a piston rod of the electric push rod slidingly penetrating through the storage cylinder, a piston fixedly connected to the end of the piston rod of the electric push rod, the piston being slidably connected inside the storage cylinder, a switch fixedly connected to the outside of the storage cylinder, an oil inlet valve fixedly connected to the outside of the storage cylinder, a first sealing element provided at the outlet end of the oil inlet valve, an oil outlet pipe fixedly connected to the end of the storage cylinder, a second sealing element provided at the inlet end of the oil outlet pipe, a connector fixedly connected to the end of the oil outlet pipe, and a nozzle provided inside the connector.

[0006] Two L-shaped grooves are symmetrically formed on the outer edge of the connector, and two retaining grooves are symmetrically formed on the outer side of the connector. The two retaining grooves are respectively connected to the two L-shaped grooves. A retaining block is engaged in each of the two retaining grooves. A sealing block is fixed between the two retaining blocks. The sealing block abuts against the inside of the connector. The nozzle is fixedly connected to the outside of the sealing block. The center of the sealing block passes through a through hole communicating with the nozzle. The end of the sealing block abuts against a sealing ring. The sealing ring is slidably connected to the inside of the connector. A through groove is formed on the outside of the storage cylinder. A transparent scale plate is fixedly connected in the through groove.

[0007] The inner wall of the connector has two symmetrical second sliding grooves. The second sliding grooves are slidably connected to the second sliders. The second sliders are fixedly connected to the sealing block. The second sliding grooves and the second sliders are fixed together by a second spring. The sealing block is made of rubber.

[0008] The first sealing element includes a second support ring fixedly connected to the inner wall of the oil inlet valve outlet end. The top surface of the second support ring abuts against a second sealing plate. The second sealing plate is slidably connected to the top surface of the second support ring. The diameter of the second sealing plate is smaller than the outer diameter of the second support ring and larger than the inner diameter of the second support ring.

[0009] Two guide rods are symmetrically fixed to the bottom surface of the second sealing plate. The two guide rods slide through the second support ring. The ends of the guide rods are fixedly connected to limiting blocks. A first spring is sleeved on the outer edge of the guide rods.

[0010] The second sealing element includes a first support ring fixedly connected to the inner wall of the oil outlet inlet end, and two first sealing plates are symmetrically hinged to the outside of the first support ring. The two first sealing plates are two mutually adaptable semi-circular plates.

[0011] Two pairs of support blocks are symmetrically fixed to the outside of the first support ring. A fixing block is hinged to the inner side of each pair of support blocks. The fixing blocks are fixedly connected to the first sealing plate. A torsion spring is sleeved at the hinge point between the support block and the fixing block.

[0012] By adopting the above technical solution, the beneficial effects of this utility model are:

[0013] This invention achieves automatic oil injection by driving the piston movement with an electric push rod, avoiding the tedious operation of traditional manual squeezing. Oil injection efficiency is significantly improved, and the pressure is stable and uniform, ensuring precise injection of lubricating grease into the bearing. By setting a first and second sealing element that closes when not in operation, grease backflow or leakage is prevented. The sealing block and sealing ring cooperate to form a tight contact when the nozzle is inserted into the bearing's oil injection hole, preventing grease splashing or contamination during injection. The nozzle can be quickly installed and removed via a locking block and L-shaped groove, facilitating the replacement of different nozzle sizes to accommodate different bearing oil injection hole sizes. A transparent scale plate is provided on the side wall of the storage cylinder, allowing real-time observation of the remaining grease level for timely replenishment and preventing interruptions in oil injection. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a perspective view of the connection between the connector and the nozzle of this utility model.

[0016] Figure 3This is a main sectional view of the connection between the connector and the nozzle of this utility model.

[0017] Figure 4 This is a main sectional view of the connection between the storage cylinder and the oil outlet pipe of this utility model.

[0018] Figure 5 This is a side sectional view of the internal structure of the oil outlet pipe of this utility model.

[0019] Figure 6 This is a main sectional view of the connection between the oil inlet valve and the storage cylinder of this utility model.

[0020] In the diagram, 1. Electric actuator; 2. Switch; 3. Storage cylinder; 4. Oil inlet valve; 5. Oil outlet pipe; 6. Connector; 7. Sealing block; 8. Nozzle; 9. Transparent scale plate; 10. L-shaped groove; 11. Locking block; 12. Locking groove; 13. Sealing ring; 14. First support ring; 15. Support block; 16. First sealing plate; 17. Fixing block; 18. Limiting block; 19. First spring; 20. Second support ring; 21. Second sealing plate; 22. Guide rod. Detailed Implementation

[0021] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0022] like Figures 1 to 6 As shown, the oil injection device for automotive bearings includes a storage cylinder 3, an electric push rod 1 fixedly connected to the outside of the storage cylinder 3, a piston rod of the electric push rod 1 slidingly passing through the storage cylinder 3, a piston fixedly connected to the end of the piston rod of the electric push rod 1, the piston slidingly connected inside the storage cylinder 3, a switch 2 fixedly connected to the outside of the storage cylinder 3, an oil inlet valve 4 fixedly connected to the outside of the storage cylinder 3, a first seal at the outlet end of the oil inlet valve 4, an oil outlet pipe 5 fixedly connected to the end of the storage cylinder 3, a second seal at the inlet end of the oil outlet pipe 5, a connector 6 fixedly connected to the end of the oil outlet pipe 5, and a nozzle 8 inside the connector 6.

[0023] The first sealing element includes a second support ring 20 fixedly connected to the inner wall of the outlet end of the oil inlet valve 4. The top surface of the second support ring 20 abuts against the second sealing plate 21. The second sealing plate 21 is slidably connected to the top surface of the second support ring 20. The diameter of the second sealing plate 21 is smaller than the outer diameter of the second support ring 20 and larger than the inner diameter of the second support ring 20. Two guide rods 22 are symmetrically fixed to the bottom surface of the second sealing plate 21. The two guide rods 22 slide through the second support ring 20. The end of the guide rod 22 is fixedly connected to a limiting block 18. A first spring 19 is sleeved on the outer edge of the guide rod 22.

[0024] The second sealing element includes a first support ring 14 fixedly connected to the inner wall of the inlet end of the oil outlet pipe 5. Two first sealing plates 16 are symmetrically hinged to the outside of the first support ring 14. The two first sealing plates 16 are two mutually compatible semi-circular plates. Two pairs of support blocks 15 are symmetrically fixed to the outside of the first support ring 14. A fixing block 17 is hinged to the inner side of each pair of support blocks 15. The fixing block 17 is fixedly connected to the first sealing plate 16. A torsion spring is sleeved at the hinge point between the support block 15 and the fixing block 17.

[0025] Two L-shaped grooves 10 are symmetrically opened on the outer edge of the connector 6. Two slots 12 are symmetrically opened on the outside of the connector 6. The two slots 12 are respectively connected to the two L-shaped grooves 10. A locking block 11 is locked in the two slots 12 respectively. A sealing block 7 is fixed between the two locking blocks 11. The sealing block 7 abuts against the inside of the connector 6. The nozzle 8 is fixedly connected to the outside of the sealing block 7. The center of the sealing block 7 passes through a through hole connected to the nozzle 8. The end of the sealing block 7 abuts against the sealing ring 13. The sealing ring 13 is slidably connected to the inside of the connector 6. Two second sliding grooves are symmetrically opened on the inner wall of the connector 6. A second slider is slidably connected in the second sliding groove. The second slider is fixedly connected to the sealing block 7. A second spring is fixed between the second sliding groove and the second slider. The sealing block 7 is made of rubber. A through groove is opened on the outside of the storage cylinder 3. A transparent scale plate 9 is fixedly connected in the through groove.

[0026] The piston is driven by an electric push rod 1 to achieve automatic oil injection, avoiding the tedious operation of traditional manual squeezing. The oil injection efficiency is significantly improved, and the pressure is stable and uniform, ensuring that the lubricating grease is accurately injected into the bearing. By setting the first and second seals to close in the non-working state, grease backflow or leakage is prevented. The sealing block 7 and the sealing ring 13 cooperate to form a tight contact when the nozzle 8 is inserted into the bearing oil injection hole, avoiding grease splashing or contamination during the oil injection process. The nozzle 8 can be quickly disassembled and assembled with the L-shaped groove 10 through the locking block 11, which facilitates the replacement of different specifications of nozzle 8 to adapt to different bearing oil injection hole sizes. The storage cylinder 3 has a transparent scale plate 9 on its side wall, which can be used to observe the grease balance in real time, so as to replenish it in time and avoid oil injection interruption.

[0027] Working principle: After the power is turned on, press switch 2 to start electric push rod 1. The piston rod pushes the piston to move towards the end of storage cylinder 3. The grease in the cylinder is pressurized. The pressure causes the first sealing plate 16 in the second sealing element to overcome the spring force of the torsion spring and unfold outward. The grease flows to the connector 6 through the oil outlet pipe 5. At the same time, the second sealing plate 21 in the first sealing element is pressed tightly against the second support ring 20, closing the oil inlet valve 4 to prevent grease backflow. The grease is sprayed into the bearing oil filling hole through the nozzle 8. When electric push rod 1 retracts, the piston moves in the opposite direction, and a negative pressure is formed in storage cylinder 3, which causes the oil inlet valve 4 to open to replenish grease. The first sealing plate 16 closes the inlet of oil outlet pipe 5 under the action of the torsion spring. The second sealing plate 21 is sucked open by the negative pressure. External grease is replenished into storage cylinder 3 through oil inlet valve 4 to prepare for the next oil filling.

[0028] When replacing the nozzle 8, the nozzle 8 pushes the sealing block 7, which in turn pushes the sealing ring 13 to move, compressing the second spring. This causes the locking block 11 to move axially from the slot 12 into the L-shaped groove 10. Then, the nozzle 8 rotates the sealing block 7, which in turn rotates the locking block 11 within the L-shaped groove 10 until it reaches the side frame end of the L-shaped groove 10. Finally, the locking block 11 is removed from the outlet end of the L-shaped groove 10, thus removing the sealing block 7 from the connector 6. Simultaneously, the compressed second spring resets. This completes the disassembly of the nozzle 8. Then, the nozzle 8 to be replaced is aligned with the outlet end of the L-shaped groove 10, and the locking block 11 is pushed into the L-shaped groove 10. At the same time, the sealing block 7 moves against the sealing ring 13, and the second spring is compressed, causing the locking block 11 to move into the L-shaped groove 10. Then, the locking block 11 is rotated into the slot 12. Then, the nozzle 8 is released, and the compressed second spring returns to its original position. When the second spring returns to its original position, the locking block 11 is pushed into the slot 12, thus completing the fixation of the nozzle 8 and the connector 6.

[0029] All of the above components are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0030] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. An oil injection device for automotive bearings, comprising a storage cylinder (3), characterized in that, An electric push rod (1) is fixedly connected to the outside of the storage cylinder (3). The piston rod of the electric push rod (1) slides through the storage cylinder (3). A piston is fixedly connected to the end of the piston rod of the electric push rod (1). The piston is slidably connected inside the storage cylinder (3). A switch (2) is fixedly connected to the outside of the storage cylinder (3). An oil inlet valve (4) is fixedly connected to the outside of the storage cylinder (3). A first sealing element is provided at the outlet end of the oil inlet valve (4). An oil outlet pipe (5) is fixedly connected to the end of the storage cylinder (3). A second sealing element is provided at the inlet end of the oil outlet pipe (5). A connector (6) is fixedly connected to the end of the oil outlet pipe (5). A nozzle (8) is provided inside the connector (6).

2. The oil injection device for automotive bearings according to claim 1, characterized in that, Two L-shaped grooves (10) are symmetrically opened on the outer edge of the connector (6). Two slots (12) are symmetrically opened on the outside of the connector (6). The two slots (12) are respectively connected to the two L-shaped grooves (10). A locking block (11) is locked in the two slots (12). A sealing block (7) is fixed between the two locking blocks (11). The sealing block (7) abuts against the inside of the connector (6). The nozzle (8) is fixedly connected to the outside of the sealing block (7). The center of the sealing block (7) passes through a through hole connected to the nozzle (8). The end of the sealing block (7) abuts against the sealing ring (13). The sealing ring (13) is slidably connected to the inside of the connector (6). A through groove is opened on the outside of the storage cylinder (3). A transparent scale plate (9) is fixedly connected in the through groove.

3. The oil injection device for automotive bearings according to claim 2, characterized in that, The inner wall of the connector (6) is symmetrically provided with two second sliding grooves, and a second slider is slidably connected in the second sliding groove. The second slider is fixedly connected to the sealing block (7). A second spring is fixed between the second sliding groove and the second slider. The sealing block (7) is made of rubber.

4. The oil injection device for automotive bearings according to claim 1, characterized in that, The first sealing element includes a second support ring (20) fixedly connected to the inner wall of the outlet end of the oil inlet valve (4). The top surface of the second support ring (20) abuts against the second sealing plate (21). The second sealing plate (21) is slidably connected to the top surface of the second support ring (20). The diameter of the second sealing plate (21) is smaller than the outer diameter of the second support ring (20) and larger than the inner diameter of the second support ring (20).

5. The oil injection device for automotive bearings according to claim 4, characterized in that, Two guide rods (22) are symmetrically fixed on the bottom surface of the second sealing plate (21). The two guide rods (22) slide through the second support ring (20). The end of the guide rod (22) is fixedly connected to the limiting block (18). The outer edge of the guide rod (22) is fitted with a first spring (19).

6. The oil injection device for automotive bearings according to claim 1, characterized in that, The second sealing element includes a first support ring (14) fixedly connected to the inner wall of the inlet end of the oil outlet pipe (5). Two first sealing plates (16) are symmetrically hinged to the outside of the first support ring (14). The two first sealing plates (16) are two mutually compatible semi-circular plates.

7. The oil injection device for automotive bearings according to claim 6, characterized in that, Two pairs of support blocks (15) are symmetrically fixed to the outside of the first support ring (14). A fixing block (17) is hinged to the inner side of each pair of support blocks (15). The fixing block (17) is fixedly connected to the first sealing plate (16). A torsion spring is sleeved at the hinge of the support block (15) and the fixing block (17).

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