Hub oil seal ring forge piece

Abstract

The utility model relates to a hub oil seal ring forge piece, which belongs to the technical field of hub oil seals and comprises a hub oil seal ring body, the hub oil seal ring body comprises a metal framework, a first sealing lip and a second sealing lip, the first sealing lip is fixedly mounted on the outer side of the metal framework, and the second sealing lip is fixedly mounted on the inner side of the metal framework. Annular grooves are formed in the two ends of the metal framework, buffering assemblies are installed in the annular grooves, annular rubber pads are detachably installed on the outer sides of the annular grooves, water swelling rubber is installed at the two ends of the first sealing lip and the two ends of the second sealing lip, and the water swelling rubber is of an annular structure. The water swelling rubber is arranged on the metal framework and buffers impact force borne by the metal framework when being vibrated, the situation that the metal framework slightly deforms and leaks oil is prevented, in cloudy and rainy days, the water swelling rubber can suck inflow liquid, meanwhile, the water swelling rubber swells to prevent the liquid from entering a bearing, and the sealing performance of the hub oil seal ring body is improved.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub oil seal technology, and in particular to a wheel hub oil seal ring forging. Background Technology

[0002] Wheel hub oil seals are widely used in rolling or sliding bearings in automobiles. They are mechanical seals consisting of a sealing lip and a metal skeleton. The sealing lip contacts the shaft or bore wall to form a seal, while the metal skeleton provides support and fixation for the sealing lip. The main function of wheel hub oil seals is to prevent leakage or seepage of lubricating oil or other fluids, while also preventing dust from entering, maintaining good lubrication conditions for rolling or sliding friction parts, and extending their service life.

[0003] For example, CN219493048U discloses an automotive wheel hub oil seal, comprising an oil seal skeleton mechanism and an anti-slip mechanism, wherein the anti-slip mechanism is installed on the oil seal skeleton mechanism; the oil seal skeleton mechanism includes a shell, a first metal skeleton, and a second metal skeleton. This invention overcomes the shortcomings of the prior art. The second metal skeleton is connected to the first metal skeleton, and the top side of the second metal skeleton is clamped inside the shell, while its bottom is clamped onto a rubber shell. This forms a ring structure with the cross-sections of the second metal skeleton, the third metal skeleton, the first metal skeleton, and the rubber shell, making the overall structure more stable. Although the shell of this application contains a rigid structure of the second, third, and first metal skeletons, and a rubber shell is also provided for support, it does not excessively affect the elastic function of the shell and increases its stability without affecting the essential function of the wheel hub oil seal.

[0004] While common wheel hub oil seals can prevent the leakage of lubricating oil or other fluids, their metal frame has poor shock resistance. When subjected to vibration, it is prone to slight deformation, which can lead to oil leakage and reduce the service life of the oil seal. Utility Model Content

[0005] To overcome the technical defects of the existing technology, this utility model provides a wheel hub oil seal ring forging, which can improve the seismic performance of the metal frame.

[0006] The technical solution adopted by this utility model is as follows: It includes a hub oil seal ring body, which comprises a metal frame, a first sealing lip, and a second sealing lip. The first sealing lip is fixedly installed on the outside of the metal frame, and the second sealing lip is fixedly installed on the inside of the metal frame. Both ends of the metal frame have annular grooves, and buffer components are installed within these grooves. An annular rubber pad is detachably installed on the outside of the annular grooves. Water-swellable rubber is installed at both ends of the first and second sealing lips. During use, the water-swellable rubber enhances the sealing performance of the first and second sealing lips when exposed to water. The annular rubber pad seals the annular grooves, the buffer components cushion the impact force on the metal frame, and the first and second sealing lips prevent oil leakage.

[0007] Preferably, in order to install the water-swellable rubber, the first sealing lip and the second sealing lip are provided with placement grooves at both ends, and one end of the water-swellable rubber is fixedly installed in the placement groove, which is an annular structure.

[0008] Preferably, in order to better achieve a sealing effect, the water-swellable rubber has a ring structure.

[0009] Preferably, in order to install and fix the first arc-shaped plate and the second arc-shaped plate, the buffer assembly includes a first arc-shaped plate and a second arc-shaped plate arranged in a circumferential array, and the first arc-shaped plate and the second arc-shaped plate are respectively fixedly installed at both ends inside the annular groove.

[0010] Preferably, in order to make the first arc-shaped plate and the second arc-shaped plate move smoothly, a damping telescopic rod is fixedly installed at one end of the first arc-shaped plate, and the free end of the damping telescopic rod is fixedly connected to the second arc-shaped plate.

[0011] Preferably, in order to buffer the impact force on the metal frame, a buffer spring is sleeved on the outside of the damping telescopic rod, and the deformation force generated by the buffer spring is used to buffer the impact force.

[0012] Preferably, in order to install the buffer spring, one end of the buffer spring is fixedly connected to the first arc-shaped plate, and the other end of the buffer spring is fixedly connected to the second arc-shaped plate.

[0013] Preferably, in order to fix the annular rubber pad, a positioning screw is rotatably installed at one end of the annular rubber pad, and a positioning screw hole is opened at one end of the metal frame. One end of the positioning screw extends into the positioning screw hole, and the positioning screw matches the positioning screw hole. The positioning screw is used to limit the position of the annular rubber pad.

[0014] The beneficial effects of this utility model are as follows: When in use, the buffer spring and damping telescopic rod buffer the impact force on the metal frame when it is vibrated, preventing slight deformation of the metal frame and oil leakage. In rainy weather, the water-swellable rubber can absorb the inflowing liquid and expand to prevent the liquid from entering the bearing, thereby improving the sealing performance of the wheel hub oil seal ring body. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the annular groove connection structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the exploded structure of the metal skeleton, first sealing lip, and second sealing lip of this utility model.

[0018] Figure 4 This is a schematic diagram of the buffer component structure of this utility model.

[0019] Figure 5 This is a schematic diagram of the water-swellable rubber connection structure of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Metal frame; 2. First sealing lip; 3. Second sealing lip; 4. Annular groove; 5. Buffer assembly; 501. First arc plate; 502. Second arc plate; 503. Damping telescopic rod; 504. Buffer spring; 6. Annular rubber pad; 7. Water-swellable rubber; 8. Placement groove; 9. Positioning screw. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0022] like Figures 1-5As shown, this embodiment provides a wheel hub oil seal ring forging, including a wheel hub oil seal ring body. The wheel hub oil seal ring body includes a metal skeleton 1, a first sealing lip 2, and a second sealing lip 3. The first sealing lip 2 is fixedly installed on the outside of the metal skeleton 1, and the second sealing lip 3 is fixedly installed on the inside of the metal skeleton 1. Both ends of the metal skeleton 1 are provided with annular grooves 4, and buffer components 5 are installed in the annular grooves 4. An annular rubber pad 6 is detachably installed on the outside of the annular grooves 4. Water-swellable rubber 7 is installed on both ends of the first sealing lip 2 and the second sealing lip 3. Placement grooves 8 are provided on both ends of the first sealing lip 2 and the second sealing lip 3. One end of the water-swellable rubber 7 is fixedly installed in the placement groove 8. The water-swellable rubber 7 has an annular structure. A positioning screw 9 is rotatably installed on one end of the annular rubber pad 6. A positioning screw hole is provided on one end of the metal skeleton 1, and one end of the positioning screw 9 extends to... Inside the positioning screw hole, during use, the first sealing lip 2 and the second sealing lip 3 are made of materials such as rubber and polyurethane, and the metal frame 1 is made of materials such as steel. The wheel hub oil seal ring body is installed in the corresponding position, and the first sealing lip 2 and the second sealing lip 3 respectively contact the shaft or the hole wall to form a seal. The water-swellable rubber 7 can expand after contact with water, and its volume can increase several times. At the same time, it also has excellent water absorption performance and good mechanical properties. When encountering rainy weather, the water-swellable rubber 7 in the placement groove 8 absorbs the inflowing liquid and expands to prevent the liquid from entering the wheel hub, thereby improving the sealing performance of the wheel hub oil seal ring body. When the metal frame 1 is vibrated, the buffer component 5 buffers the impact force on the metal frame 1 to prevent the metal frame 1 from undergoing slight deformation and causing oil leakage.

[0023] like Figure 4 As shown, the buffer assembly 5 includes a first arc-shaped plate 501 and a second arc-shaped plate 502 arranged in a circumferential array. The first arc-shaped plate 501 and the second arc-shaped plate 502 are respectively fixedly installed at both ends inside the annular groove 4. A damping telescopic rod 503 is fixedly installed at one end of the first arc-shaped plate 501. The free end of the damping telescopic rod 503 is fixedly connected to the second arc-shaped plate 502. A buffer spring 504 is sleeved on the outside of the damping telescopic rod 503. One end of the buffer spring 504 is fixedly connected to the first arc-shaped plate 501, and the other end of the buffer spring 504 is fixedly connected to the second arc-shaped plate 502. In use, when the metal frame 1 is vibrated, the buffer spring 504 buffers the impact force on the metal frame 1, preventing the metal frame 1 from deforming slightly due to excessive impact force. The damping telescopic rod 503 plays a guiding and limiting role. At the same time, the friction force generated inside the damping telescopic rod 503 can eliminate the elastic potential energy generated by the buffer spring 504, preventing the first arc-shaped plate 501 and the second arc-shaped plate 502 from moving repeatedly.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications may be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A wheel hub oil seal ring forging, comprising a wheel hub oil seal ring body, the wheel hub oil seal ring body comprising a metal frame (1), a first sealing lip (2) and a second sealing lip (3), the first sealing lip (2) being fixedly installed on the outside of the metal frame (1), and the second sealing lip (3) being fixedly installed on the inside of the metal frame (1), characterized in that: The metal frame (1) has annular grooves (4) at both ends. A buffer assembly (5) is installed in the annular groove (4). An annular rubber pad (6) is detachably installed on the outside of the annular groove (4). Water-swellable rubber (7) is installed at both ends of the first sealing lip (2) and the second sealing lip (3).

2. The wheel hub oil seal ring forging according to claim 1, characterized in that: The first sealing lip (2) and the second sealing lip (3) are provided with placement grooves (8) at both ends, and one end of the water-swellable rubber (7) is fixedly installed in the placement groove (8).

3. The wheel hub oil seal ring forging according to claim 1, characterized in that: The water-swellable rubber (7) has a ring structure.

4. The wheel hub oil seal ring forging according to claim 1, characterized in that: The buffer assembly (5) includes a first arc plate (501) and a second arc plate (502) arranged in a circumferential array. The first arc plate (501) and the second arc plate (502) are respectively fixedly installed at both ends inside the annular groove (4).

5. The wheel hub oil seal ring forging according to claim 4, characterized in that: A damping telescopic rod (503) is fixedly installed at one end of the first arc plate (501), and the free end of the damping telescopic rod (503) is fixedly connected to the second arc plate (502).

6. The wheel hub oil seal ring forging according to claim 5, characterized in that: A buffer spring (504) is sleeved on the outside of the damping telescopic rod (503).

7. The wheel hub oil seal ring forging according to claim 6, characterized in that: One end of the buffer spring (504) is fixedly connected to the first arc plate (501), and the other end of the buffer spring (504) is fixedly connected to the second arc plate (502).

8. The wheel hub oil seal ring forging according to claim 1, characterized in that: The annular rubber pad (6) is rotatably mounted with a positioning screw (9) at one end, and the metal frame (1) has a positioning screw hole at one end, with one end of the positioning screw (9) extending into the positioning screw hole.

Images