A weather-resistant chloroprene rubber ball head dust cover

Abstract

The present invention belongs to the technical fields of mechanical engineering and automotive parts, and specifically relates to a neoprene ball head dust cover with good weather resistance, which includes a cover body and a first flange part provided below the cover body. A second flange part is provided on the cover body, and the cover body, the first flange part, and the second flange part are all integrally formed. An opening part one and an opening part two are respectively formed in the first flange part and the second flange part, and an exhaust bump one and an exhaust bump two are provided on both the first flange part and the second flange part. Cavities are provided in both the exhaust bump one and the exhaust bump two. A first annular channel and a first exhaust channel are provided in the first flange part. By pressing the exhaust bump two and the exhaust bump one respectively, the present invention can discharge the gas in the second exhaust channel and the first exhaust channel, so that when the inner wall of the opening part two and the first flange part are in contact with the ball head pin, they can tightly adsorb on the outer wall of the ball head pin main body, preventing it from opening, and improving the sealing performance.

Description

Technical Field

[0001] The present invention relates to the technical fields of mechanical engineering and automotive parts, and specifically relates to a neoprene ball head dust cover with good weather resistance. Background Art

[0002] Ball heads are widely used in industries such as mechanical engineering and automobiles. For example, the ball pins used in automotive control arms are generally provided with dust covers outside to prevent dust and water in order to ensure the flexible rotation of the ball pins during operation.

[0003] During the use of the existing dust covers, the rotation and inclination of the ball pins often cause tension on the second flange part, resulting in an opening. At the same time, when the ball pins rotate, the outside of the dust covers will be rubbed by other objects. As the service life of the dust cover material decreases, the elasticity and wear resistance will be lost, resulting in the dust covers being broken or opened, affecting normal use. Summary of the Invention

[0004] The purpose of the present invention is to provide a neoprene ball head dust cover with good weather resistance to solve the problem that as the service life of the dust cover material decreases, the elasticity and wear resistance will be lost, resulting in the dust cover being broken or opened as mentioned in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A neoprene ball head dust cover with good weather resistance, including a cover body and a first flange part provided below the cover body. A second flange part is provided on the cover body, and the cover body, the first flange part, and the second flange part are all integrally formed. An opening part one and an opening part two are respectively opened in the first flange part and the second flange part, and exhaust bumps one and exhaust bumps two are provided on both the first flange part and the second flange part. Cavities are provided inside both the exhaust bump one and the exhaust bump two. A first annular channel and a first exhaust channel are provided inside the first flange part. The first exhaust channel is communicated with the first annular channel, the cavity inside the exhaust bump one, and the opening part one. A second annular channel and a second exhaust channel are provided inside the second flange part. The second exhaust channel is communicated with the second annular channel, the cavity inside the exhaust bump two, and the opening part two. A wear-resistant composite layer is provided inside the cover body, and the wear-resistant composite layer includes at least one of steel wires and fabrics. An oil injection hole is opened on the cover body, and an oil storage chamber is opened inside the cover body. A flange is provided on the inner wall of the cover body, and a groove is provided in the middle of the flange. An oil outlet hole is provided on the groove. The oil storage chamber is communicated with the oil injection hole and the oil outlet hole. When the cover body rotates with the ball pin and one side of the cover body is inclined, the oil storage chamber on the inclined side is pressed, so that the lubricating oil in the oil storage chamber on the pressed side flows to the other side and is discharged from the oil outlet hole to lubricate the ball pin and reduce wear. And annular protrusions are evenly provided at the bottom of the inner wall of the cover body.

[0006] Preferably, an annular serrated groove is provided on the inner wall of the opening portion, and the annular serrated groove is located below the second exhaust passage.

[0007] Preferably, a first reinforcing skeleton and a second reinforcing skeleton are respectively provided in the first flange portion and the housing, and both ends of the wear-resistant composite layer are respectively connected to the first reinforcing skeleton and the second reinforcing skeleton.

[0008] Preferably, the wear-resistant composite layer is formed by connecting intertwined steel wires and cloth, and a heat vulcanization adhesive is provided on the surface of the cloth.

[0009] Preferably, the wear-resistant composite layer is intertwined steel wires, and the steel wires are steel ropes with a diameter of 1-3 mm.

[0010] Preferably, the wear-resistant composite layer is cloth, and the cloth is DuPont fabric made by plain Oxford weaving method, and a heat vulcanization adhesive is provided on the surface of the cloth.

[0011] Preferably, the materials of the housing, the first flange portion, and the second flange portion are all chloroprene rubber, and the chloroprene rubber is composed of the following raw materials in parts by weight: 5-10 parts of ceramic particles, 15-20 parts of polyethylene, 40-50 parts of chloroprene rubber, 10-20 parts of additives, and the additives include magnesium oxide, zinc oxide, fumed silica, chlorinated polypropylene, antioxidant, coupling agent, and modifier.

[0012] Preferably, the chloroprene rubber is composed of the following raw materials in parts by weight: 6 parts of ceramic particles, 15 parts of polyethylene, 41 parts of chloroprene rubber, and 10 parts of additives.

[0013] Preferably, the chloroprene rubber is composed of the following raw materials in parts by weight: 7 parts of ceramic particles, 18 parts of polyethylene, 45 parts of chloroprene rubber, and 15 parts of additives.

[0014] Preferably, the chloroprene rubber is composed of the following raw materials in parts by weight: 10 parts of ceramic particles, 20 parts of polyethylene, 50 parts of chloroprene rubber, and 20 parts of additives.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1) By pressing the second exhaust protrusion and the first exhaust protrusion respectively, the present invention can discharge the gas in the second exhaust passage and the first exhaust passage, so that when the inner walls of the second opening portion and the first flange portion are in contact with the ball head pin, they can tightly adsorb on the outer wall of the ball head pin body, preventing the opening from occurring and improving the sealing performance.

[0017] 2) By providing a wear-resistant composite layer in the housing, and the wear-resistant composite layer has good wear resistance. When the outer ring of the dust cover is worn and cracked, the wear-resistant composite layer can ensure that the inner ring of the dust cover will not be worn and cracked, ensuring the sealing performance between the dust cover and the ball head pin.

[0018] 3) When the inner flange of the cover body of the present invention fits with the ball head pin, a sealed space is formed in the groove, which can prevent the loss of lubricating oil. At the same time, when the cover body rotates with the ball head pin and one side of the cover body is tilted, the oil storage chamber on the tilted side is pressurized, so that the lubricating oil in the oil storage chamber on the pressurized side flows to the other side and is discharged from the oil outlet hole, thereby lubricating the ball head pin, reducing wear. The annular protrusion can reduce the contact area between the inner wall of the cover body and the ball head pin, reduce wear, effectively reduce the wear between the inside of the cover body and the outer wall of the shaft head pin, and extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is a cross-sectional view of the cover body of the present invention;

[0021] Figure 3 is a schematic structural diagram of the second annular channel of the present invention;

[0022] Figure 4 is a schematic structural diagram of the first annular channel of the present invention;

[0023] Figure 5 is a schematic diagram of the connection between the fabric and the steel wire of the present invention.

[0024] In the figure: 1 the first flange part, 2 the cover body, 3 the second flange part, 4 the second opening part, 5 the annular sawtooth groove, 6 the second exhaust bump, 7 the first exhaust bump, 8 the second exhaust channel, 9 the first strengthening skeleton, 10 the second strengthening skeleton, 11 the wear-resistant composite layer, 12 the second annular channel, 13 the first annular channel, 14 the first exhaust channel, 15 the fabric, 16 the steel wire. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0027] Embodiment:

[0028] Please refer to Figures 1-5, the present invention provides a technical solution: a weather-resistant neoprene ball head dust cover, including a cover body 2 and a first flange portion 1 provided below the cover body 2. A second flange portion 3 is provided on the cover body 2, and the cover body 2, the first flange portion 1, and the second flange portion 3 are all integrally formed. An opening portion one and an opening portion two 4 are respectively formed in the first flange portion 1 and the second flange portion 3, and exhaust bumps one 7 and exhaust bumps two 6 are provided on both the first flange portion 1 and the second flange portion 3. Cavities are provided in both the exhaust bumps one 7 and the exhaust bumps two 6. An annular channel one 13 and an exhaust channel one 14 are provided in the first flange portion 1. The exhaust channel one 14 is communicated with the annular channel one 13, the cavity in the exhaust bump one 7, and the opening portion one. An annular channel two 12 and an exhaust channel two 8 are provided in the second flange portion 3. The exhaust channel two 8 is communicated with the annular channel two 12, the cavity in the exhaust bump two 6, and the opening portion two 4. By pressing the exhaust bump two 6 and the exhaust bump one 7 respectively, the gas in the exhaust channel two 8 and the exhaust channel one 14 can be discharged. The cover body 2 is sleeved outside the ball head pin, so that the opening portion two 4 and the inner wall of the first flange portion 1 are attached to the outside of the ball head pin. When the exhaust bump two 6 and the exhaust bump one 7 are released, negative pressure is formed in the exhaust channel two 8 and the exhaust channel one 14, so that the opening portion two 4 and the inner wall of the first flange portion 1 can tightly adsorb on the outer wall of the ball head pin main body when they are attached to the ball head pin. A wear-resistant composite layer 11 is provided in the cover body 2, and the wear-resistant composite layer 11 includes at least one of steel wires 16 and cloth 15. The wear-resistant composite layer 11 can be composed of cloth 15, steel wires 16, or a combination of cloth 15 and steel wires, and has good wear resistance. When the outer ring of the cover body 2 is worn and cracked, the wear-resistant composite layer 11 can ensure that the inner ring of the cover body 2 does not wear and crack, ensuring the sealing between the dust cover and the ball head pin. An oil injection hole 17 is provided on the cover body 2, and an oil storage chamber 18 is provided in the cover body 2. A flange 19 is provided on the inner wall of the cover body 2. The flange 19 can be attached to the ball head pin, and a groove 20 is provided in the middle of the flange 19. When the flange 19 is attached to the ball head pin, a sealed space is formed in the groove 20, which can prevent the loss of lubricating oil. An oil outlet hole 21 is provided on the groove 20. The lubricating oil is discharged from the oil outlet hole 21, and can be evenly distributed on the contact surface between the ball head pin and the flange 19, reducing friction. The oil storage chamber 18 is communicated with the oil injection hole 17 and the oil outlet hole 21. The lubricating oil is injected into the oil storage chamber 18 from the oil injection hole 17, and then a sealing plug is inserted into the oil injection hole 17 to seal the oil injection hole 17. A clamp is used to sleeve on the outer wall of the cover body 2 to fix the position of the sealing plug and prevent the sealing plug from falling off from the oil injection hole 17. When the cover body 2 rotates with the ball head pin and one side of the cover body 2 is tilted, the oil storage chamber 18 on the tilted side is pressed, so that the lubricating oil in the oil storage chamber 18 on the pressed side flows to the other side and is discharged from the oil outlet hole 21, thereby lubricating the ball head pin and reducing wear. And annular protrusions 22 are evenly provided at the bottom of the inner wall of the cover body 2. The annular protrusions 22 can reduce the contact surface between the inner wall of the cover body 2 and the ball head pin, reducing wear.

[0029] An annular serrated groove 5 is provided on the inner wall of the second opening 4, and the annular serrated groove 5 is located below the second exhaust passage 8. The annular serrated groove 5 can increase the sealing of the pin rod section of the ball head pin and improve the dust-proof sealing effect.

[0030] A first reinforcing skeleton 9 and a second reinforcing skeleton 10 are respectively provided in the first flange portion 1 and the housing 2, and both ends of the wear-resistant composite layer 11 are respectively connected to the first reinforcing skeleton 9 and the second reinforcing skeleton 10, ensuring the stability of the overall structure of the first flange portion 1 of the dust-proof cover and the housing 2.

[0031] The wear-resistant composite layer 11 is formed by connecting steel wires 16 and cloth 15 formed by interweaving, and a heat vulcanization adhesive is provided on the surface of the cloth 15.

[0032] The wear-resistant composite layer 11 is steel wires 16 formed by interweaving, and the steel wires 16 are steel wire ropes with a diameter of 1-3 mm. The steel wires 16 have good elasticity and wear resistance, and can achieve the effect of resisting friction.

[0033] The wear-resistant composite layer 11 is cloth 15, and the cloth 15 is a DuPont fabric made by plain weave Oxford method, which has good stretchability and wear resistance. A heat vulcanization adhesive is provided on the surface of the cloth 15, which can better combine with the material of the housing 2.

[0034] The materials of the housing 2, the first flange portion 1, and the second flange portion 3 are all chloroprene rubber, and the chloroprene rubber is composed of the following raw materials in parts by weight: 5-10 parts of ceramic particles, 15-20 parts of polyethylene, 40-50 parts of chloroprene rubber, and 10-20 parts of additives. The additives include magnesium oxide, zinc oxide, fumed silica, chlorinated polypropylene, antioxidant, coupling agent, and modifier.

[0035] Working principle: By pressing the second exhaust bump 6 and the first exhaust bump 7 respectively, the gas in the second exhaust passage 8 and the first exhaust passage 14 can be discharged. The housing 2 is sleeved outside the ball head pin, so that the inner walls of the second opening 4 and the first flange portion 1 are attached to the outside of the ball head pin. Release the second exhaust bump 6 and the first exhaust bump 7, and a negative pressure is formed in the second exhaust passage 8 and the first exhaust passage 14, so that the inner walls of the second opening 4 and the first flange portion 1 can tightly adsorb on the outer wall of the ball head pin main body when attached to the ball head pin, preventing it from opening, improving the sealing performance. The wear-resistant composite layer 11 is cloth 15, steel wires 16 or a combination of cloth 15 and steel wires, and has good wear resistance. When the outer ring of the housing 2 is worn and cracked, the wear-resistant composite layer 11 can ensure that the inner ring of the housing 2 does not wear and crack, ensuring the sealing between the dust-proof cover and the ball head pin.

[0036] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention, and any reference signs in the claims should not be regarded as limiting the claims involved.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A weather-resistant chloroprene rubber ball head dust cover, comprising a cover body (2) and a first flange portion (1) provided below the cover body (2), characterized in that: The cover body (2) is provided with a second flange portion (3), and the cover body (2), the first flange portion (1), and the second flange portion (3) are integrally formed. An opening portion one and an opening portion two (4) are respectively formed in the first flange portion (1) and the second flange portion (3). The first flange portion (1) and the second flange portion (3) are both provided with an exhaust bump one (7) and an exhaust bump two (6). Cavities are provided in both the exhaust bump one (7) and the exhaust bump two (6). An annular channel one (13) and an exhaust channel one (14) are provided in the first flange portion (1). The exhaust channel one (14) communicates with the annular channel one (13), the cavity in the exhaust bump one (7), and the opening portion one. An annular channel two (12) and an exhaust channel two (8) are provided in the second flange portion (3). The exhaust channel two (8) communicates with the annular channel two (12), the cavity in the exhaust bump two (6), and the opening portion two (4). A wear-resistant composite layer (11) is provided in the cover body (2), and the wear-resistant composite layer (11) includes at least one of steel wires (16) and fabrics (15). An oil injection hole (17) is formed in the cover body (2), and an oil storage chamber (18) is formed in the cover body (2). A flange (19) is provided on the inner wall of the cover body (2), and a groove (20) is provided in the middle of the flange (19). An oil outlet hole (21) is provided in the groove (20). The oil storage chamber (18) communicates with the oil injection hole (17) and the oil outlet hole (21). When the cover body (2) rotates with the ball head pin and one side of the cover body (2) is inclined, the oil storage chamber (18) on the inclined side is pressed, so that the lubricating oil in the oil storage chamber (18) on the pressed side flows to the other side and is discharged from the oil outlet hole (21) to lubricate the ball head pin and reduce wear. And annular protrusions (22) are uniformly provided at the bottom of the inner wall of the cover body (2); An annular serrated groove (5) is provided on the inner wall of the opening portion two (4), and the annular serrated groove (5) is located below the exhaust channel two (8); A first reinforcing skeleton (9) and a second reinforcing skeleton (10) are respectively provided in the first flange portion (1) and the cover body (2), and both ends of the wear-resistant composite layer (11) are respectively connected to the first reinforcing skeleton (9) and the second reinforcing skeleton (10).

2. A weather-resistant chloroprene rubber ball head dust cover according to claim 1, characterized in that: The wear-resistant composite layer (11) is formed by interweaving and connecting steel wires (16) and fabrics (15), and a heat vulcanization adhesive is provided on the surface of the fabric (15).

3. A weather-resistant chloroprene rubber ball head dust cover according to claim 1, characterized in that: The wear-resistant composite layer (11) is formed by interweaving steel wires (16), and the steel wires (16) are steel wire ropes with a diameter of 1-3 mm.

4. The weather-resistant chloroprene rubber ball head dust cover according to claim 1, characterized in that: The wear-resistant composite layer (11) is a fabric (15), and the fabric (15) is a DuPont fabric made by plain weave Oxford weaving method, and a heat vulcanization adhesive is provided on the surface of the fabric (15).

5. A weather-resistant chloroprene rubber ball head dust cover according to claim 1, characterized in that: The materials of the cover body (2), the first flange portion (1), and the second flange portion (3) are all chloroprene rubber, and the chloroprene rubber is composed of the following raw materials in parts by weight: 5-10 parts of ceramic particles, 15-20 parts of polyethylene, 40-50 parts of chloroprene rubber, 10-20 parts of additives, and the additives include magnesium oxide, zinc oxide, fumed silica, chlorinated polypropylene, antioxidant, coupling agent, and modifier.

6. The weather-resistant chloroprene rubber ball head dust cover according to claim 5, characterized in that: The chloroprene rubber is composed of the following raw materials by weight: 6 parts of ceramic particles, 15 parts of polyethylene, 41 parts of chloroprene rubber, and 10 parts of additives.

7. The weather-resistant chloroprene rubber ball head dust cover according to claim 5, characterized in that: The chloroprene rubber is composed of the following raw materials by weight: 7 parts of ceramic particles, 18 parts of polyethylene, 45 parts of chloroprene rubber, and 15 parts of additives.

8. A weather-resistant chloroprene rubber ball head dust cover according to claim 5, characterized in that: The chloroprene rubber is composed of the following raw materials by weight: 10 parts of ceramic particles, 20 parts of polyethylene, 50 parts of chloroprene rubber, and 20 parts of additives.

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