Ball bearing for heavy mine truck

Abstract

The utility model relates to a ball bearing for a heavy mine truck, and relates to the technical field of industrial and mining truck parts. The bearing comprises an inner sleeve, an outer sleeve and a plurality of steel balls, the outer sleeve is concentrically arranged outside the inner sleeve, the outer wall of the inner sleeve and the inner wall of the outer sleeve are each provided with a sliding way for the steel balls to be arranged in the circumferential direction, lubricating grooves are formed in the inner sleeve and the outer sleeve and are formed in the circumferential directions of the inner sleeve and the outer sleeve, and lubricating holes are formed in the inner walls of the sliding ways. The lubricating holes are communicated with the lubricating grooves, circulating holes are formed in the side walls of the lubricating grooves, injection holes are formed in the end walls of the inner sleeve and the outer sleeve, and the injection holes are communicated with the side walls of the corresponding circulating holes. The mine truck ball bearing lubricating oil adding device has the effect of improving the mine truck ball bearing lubricating oil adding efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of industrial and mining truck parts, and in particular to a ball bearing for heavy-duty mining trucks. Background Art

[0002] Industrial and mining trucks are also called mining trucks, or mining trucks for short. They are mainly used for rock and earth stripping and ore transportation tasks in open-pit mines. Mining truck ball bearings are important components on mining truck bogies and are mainly used for support and steering. They are usually composed of inner sleeves, outer sleeves, steel balls, retaining frames and other components. The steel balls are loaded between the inner sleeves and the outer sleeves, can withstand large loads, and can maintain good performance in occasions of frequent steering. Ball bearings need to be maintained after a period of use. The maintenance method is usually to add lubricating oil into the slideway. However, the existing mining truck ball bearings are inconvenient to operate when adding lubricating oil. Usually, the lubricating oil is directly applied to the exposed surface of the steel ball. The rolling of the steel ball drives the lubricating oil into the contact surface between the inner and outer sleeves and the steel ball. However, this method of adding lubricating oil is inefficient, and the lubricating oil cannot quickly enter the contact surface between the inner and outer sleeves and the steel ball, so it needs to be improved. Utility Model Content

[0003] In order to improve the efficiency of adding lubricating oil to a mining truck ball bearing, the present application provides a ball bearing for a heavy-duty mining truck.

[0004] The heavy-duty mining truck ball bearing provided in this application adopts the following technical solution:

[0005] A ball bearing for a heavy-duty mining truck comprises an inner sleeve, an outer sleeve and a plurality of steel balls, wherein the outer sleeve is concentrically arranged outside the inner sleeve, the outer wall of the inner sleeve and the inner wall of the outer sleeve are both provided with slideways for setting the steel balls along the circumferential direction, the inner sleeve and the outer sleeve are both provided with lubrication grooves, the lubrication grooves are provided along the circumferential direction of the inner sleeve and the outer sleeve, the inner wall of the slideway is provided with lubrication holes, the lubrication holes are communicated with the lubrication grooves, the side walls of the lubrication grooves are provided with circulation holes, the end walls of the inner sleeve and the outer sleeve are both provided with injection holes, the injection holes are communicated with the side walls of the corresponding circulation holes.

[0006] By adopting the above technical solution, when it is necessary to add lubricating oil to the steel balls in the slideway, it is only necessary to add lubricating oil into the injection hole. The lubricating oil enters the injection hole, the flow hole and the lubrication groove in sequence, and finally enters the slideway through the lubrication hole connected to the lubrication groove. In the process of the steel balls rolling on the slideway, each steel ball passes through the lubrication hole in sequence, and the lubricating oil flowing out of the lubrication hole can directly lubricate the contact surface between the steel ball and the slideway, thereby improving the lubrication efficiency and making the lubrication of ball bearings for mining trucks more convenient and efficient.

[0007] Optionally, a baffle is hinged on the inner wall of one end of the circulation hole close to the lubrication groove, and a limiting protrusion is also provided on the inner wall of the circulation hole. The limiting protrusion is located on the side of the baffle away from the lubrication groove, the baffle is abutted against the limiting protrusion, and an elastic member is provided at the hinge between the baffle and the inner wall of the circulation hole, and the elastic member enables the baffle to maintain a rotation tendency toward the limiting protrusion.

[0008] By adopting the above technical solution, when there is lubricating oil in the circulation hole, the lubricating oil will push the baffle to rotate, thereby allowing the lubricating oil to enter the lubrication groove. At the same time, the presence of the baffle and the limit protrusion can prevent the lubricating oil in the lubrication groove from flowing back into the circulation hole during the operation of the ball bearing, thereby improving the problem that the lubricating oil is prone to leakage and the contact surface of the steel ball and the slideway cannot be effectively lubricated.

[0009] Optionally, the inner sleeve and the outer sleeve end walls are both provided with cleaning holes, the cleaning holes correspond to the circulation holes one by one, the cleaning holes are connected to the ends of the corresponding circulation holes away from the lubrication groove, and the cleaning holes are provided with sealing members.

[0010] By adopting the above technical solution, the provision of cleaning holes can facilitate the staff to regularly clean the circulation holes to prevent the circulation holes from being blocked by impurities such as iron filings, thereby causing the problem of lubricating oil being unable to flow, further improving the maintenance convenience of ball bearings for mining trucks.

[0011] Optionally, the sealing member adopts a bolt, and the outer surface of the cleaning hole is provided with a countersunk groove for the end of the sealing member to be embedded.

[0012] By adopting the above technical solution, the countersunk groove can be provided so that the end of the seal will not affect the operation of other parts of the mining truck, thereby improving safety.

[0013] Optionally, a magnetic component is provided at one end of the sealing component close to the circulation hole, and the magnetic component is located at a side of the connection between the circulation hole and the injection hole away from the lubrication groove.

[0014] By adopting the above technical solution, the magnetic parts are arranged to absorb impurities such as iron filings in the lubricating oil, thereby preventing the iron filings from entering the slideway and causing damage to the steel balls, thereby extending the service life of the ball bearings for mining trucks.

[0015] Optionally, the injection hole is arranged to be inclined toward the flow hole.

[0016] By adopting the above technical solution, the injection hole is opened at an angle, so that the lubricating oil can flow toward the circulation hole more smoothly, thereby further improving the convenience of injecting the lubricating oil.

[0017] Optionally, a plurality of lubrication holes are provided, and the plurality of lubrication holes are distributed along the circumferential direction of the slideway.

[0018] By adopting the above technical solution, providing multiple lubrication holes can further improve the lubrication speed of the steel balls in the slideway, thereby achieving a better maintenance effect.

[0019] Optionally, a soaking cotton is arranged in the lubrication hole, and one end of the soaking cotton extends into the slideway.

[0020] By adopting the above technical solution, the provision of the impregnated cotton can, on the one hand, effectively prevent the lubricating oil from directly flowing into the slideway, thereby causing a large amount of lubricating oil leakage; on the other hand, it can also protect the steel ball when the steel ball rolls through the lubrication hole, thereby extending the service life of the ball bearing.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. When it is necessary to add lubricating oil to the steel balls in the slideway, it is only necessary to add lubricating oil to the injection hole. The lubricating oil enters the injection hole, the flow hole and the lubrication groove in turn, and finally enters the slideway through the lubrication hole connected to the lubrication groove. When the steel balls roll on the slideway, each steel ball passes through the lubrication hole in turn. The lubricating oil flowing out of the lubrication hole can directly lubricate the contact surface between the steel ball and the slideway, thereby improving the lubrication efficiency and making the lubrication of ball bearings for mining trucks more convenient and efficient.

[0023] 2. The existence of the baffle and the limit convex point can prevent the lubricating oil in the lubrication groove from flowing back into the flow hole during the operation of the ball bearing, thereby improving the problem that the lubricating oil is prone to leakage and the contact surface of the steel ball and the slideway cannot be effectively lubricated. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a ball bearing for a heavy-duty mining truck in an embodiment of the present application.

[0025] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle.

[0026] Explanation of the reference numerals in the accompanying drawings: 1. Inner sleeve; 2. Outer sleeve; 3. Steel ball; 4. Slideway; 5. Lubrication groove; 6. Lubrication hole; 7. Flow hole; 8. Injection hole; 9. Baffle; 10. Limiting protrusion; 11. Elastic part; 12. Cleaning hole; 13. Sealing part; 14. Countersunk groove; 15. Magnetic part; 16. Impregnation cotton. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-2 This application is described in further detail.

[0028] The present application embodiment discloses a ball bearing for a heavy mining truck. Figure 1, including an inner sleeve 1 and an outer sleeve 2 which are arranged concentrically, the outer sleeve 2 being arranged outside the inner sleeve 1, the outer wall of the inner sleeve 1 and the inner wall of the outer sleeve 2 both being provided with a slideway 4 along the circumferential direction, a plurality of steel balls 3 being arranged in the slideway 4, and a retaining frame for keeping the steel balls 3 stable is also provided.

[0029] Reference Figure 1 Lubrication grooves 5 are formed in the inner sleeve 1 and the outer sleeve 2, and the lubrication grooves 5 are arranged along the circumferential direction of the inner sleeve 1 and the outer sleeve 2. A plurality of lubrication holes 6 are opened on the inner wall of the slideway 4, and the lubrication holes 6 are connected with the lubrication grooves 5. The plurality of lubrication holes 6 are distributed along the circumferential direction of the slideway 4. In each lubrication hole 6, an impregnated cotton 16 is arranged, and one end of the impregnated cotton 16 slightly extends out of the lubrication hole 6 and enters the slideway 4, so as to protect the surface structure of the steel ball 3 when the steel ball 3 rolls through the lubrication hole 6, and also prevent the lubricating oil from leaking quickly.

[0030] Reference Figure 1 and Figure 2 A circulation hole 7 is provided on the side wall of the lubrication groove 5, and the circulation hole 7 is inclined in the direction of the lubrication groove 5 to facilitate the circulation of the lubricating oil. A baffle 9 is hinged on the inner wall of the circulation hole 7 close to the lubrication groove 5. A limiting protrusion 10 is formed on the inner wall of the circulation hole 7. The limiting protrusion 10 is located on the side of the baffle 9 away from the lubrication groove 5. The baffle 9 and the limiting protrusion 10 are abutted against each other. An elastic member 11 is provided at the hinge between the baffle 9 and the circulation hole 7. In this embodiment, the elastic member 11 adopts a torsion spring. Under the action of the torsion spring, the baffle 9 always maintains a rotation trend in the direction of the limiting protrusion 10, thereby effectively inhibiting the lubricating oil in the lubrication groove 5 from flowing back into the circulation hole 7.

[0031] Reference Figure 1 and Figure 2 The inner sleeve 1 and the outer sleeve 2 are provided with cleaning holes 12 on their end walls. In the present embodiment, each cleaning hole 12 corresponds to a circulation hole 7, and the cleaning hole 12 is communicated with the corresponding circulation hole 7 so as to regularly clean the inside of the circulation hole 7 to prevent the circulation hole 7 from being blocked. A sealing member 13 is provided in each cleaning hole 12 to prevent the lubricating oil from leaking from the cleaning hole 12. The sealing member 13 can be a bolt with a cross groove provided on the end wall. At the same time, a countersunk groove 14 is provided on the outside of the cleaning hole 12 so as to embed the end of the sealing member 13 so as not to hinder the operation of other mining truck components. A magnetic member 15 is provided on one end wall of the sealing member 13 inserted into the cleaning hole 12 by gluing. The magnetic member 15 can be a magnet to absorb iron filings mixed in the lubricating oil to prevent the iron filings from entering the lubrication groove 5 and causing blockage in the lubrication groove 5.

[0032] Reference Figure 1 and Figure 2The end walls of the inner sleeve 1 and the outer sleeve 2 are both provided with injection holes 8, and the injection holes 8 are arranged one-to-one with the circulation holes 7. The injection holes 8 are inclined toward the direction of the circulation holes 7, and the connection point between the injection holes 8 and the circulation holes 7 is located on the side of the magnetic part 15 close to the lubrication groove 5.

[0033] The implementation principle of a ball bearing for a heavy-duty mining truck in an embodiment of the present application is as follows: when the ball bearing for a mining truck needs to be maintained, lubricating oil is directly added to the circulation hole 7 through the injection hole 8. When there is a lot of lubricating oil in the circulation hole 7, the baffle 9 will rotate under the pressure of the lubricating oil, thereby allowing the lubricating oil to enter the lubrication groove 5. The lubricating oil in the lubrication groove 5 will be absorbed by the impregnated cotton 16, and then the steel ball 3 will be lubricated when the steel ball 3 passes through the lubrication hole 6, thereby improving the convenience of adding lubricating oil and improving the efficiency of maintaining the ball bearings for mining trucks.

[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A ball bearing for a heavy-duty mining truck, comprising an inner sleeve (1), an outer sleeve (2) and a plurality of steel balls (3), wherein the outer sleeve (2) is concentrically arranged outside the inner sleeve (1), and the outer wall of the inner sleeve (1) and the inner wall of the outer sleeve (2) are both provided with a slideway (4) for the steel balls (3) to be arranged in the circumferential direction, characterized in that: The inner sleeve (1) and the outer sleeve (2) are both provided with lubrication grooves (5), the lubrication grooves (5) are provided along the circumferential direction of the inner sleeve (1) and the outer sleeve (2), the inner wall of the slideway (4) is provided with lubrication holes (6), the lubrication holes (6) are communicated with the lubrication grooves (5), the side walls of the lubrication grooves (5) are provided with circulation holes (7), the end walls of the inner sleeve (1) and the outer sleeve (2) are both provided with injection holes (8), the injection holes (8) are communicated with the side walls of the corresponding circulation holes (7).

2. A ball bearing for heavy-duty mining trucks according to claim 1, characterized in that: A baffle (9) is hingedly connected to the inner wall of one end of the circulation hole (7) close to the lubrication groove (5); a limiting protrusion (10) is also arranged on the inner wall of the circulation hole (7); the limiting protrusion (10) is located on the side of the baffle (9) away from the lubrication groove (5); the baffle (9) abuts against the limiting protrusion (10); an elastic member (11) is arranged at the hinge between the baffle (9) and the inner wall of the circulation hole (7); the elastic member (11) enables the baffle (9) to maintain a rotation tendency in the direction of the limiting protrusion (10).

3. A ball bearing for heavy-duty mining trucks according to claim 1, characterized in that: The end walls of the inner sleeve (1) and the outer sleeve (2) are both provided with cleaning holes (12), the cleaning holes (12) correspond to the circulation holes (7) one by one, the cleaning holes (12) are connected to the ends of the corresponding circulation holes (7) away from the lubrication groove (5), and the cleaning holes (12) are provided with sealing members (13).

4. A ball bearing for heavy-duty mining trucks according to claim 3, characterized in that: The sealing member (13) is provided with a bolt, and the outer surface of the cleaning hole (12) is provided with a countersunk groove (14) for the end of the sealing member (13) to be embedded.

5. The ball bearing for heavy mining truck according to claim 3, characterized in that: A magnetic component (15) is provided at one end of the sealing component (13) close to the circulation hole (7), and the magnetic component (15) is located on a side of the connection between the circulation hole (7) and the injection hole (8) away from the lubrication groove (5).

6. A ball bearing for heavy mining trucks according to claim 1, characterized in that: The injection hole (8) is arranged obliquely toward the direction of the circulation hole (7).

7. A ball bearing for heavy-duty mining trucks according to claim 1, characterized in that: A plurality of lubrication holes (6) are provided, and the plurality of lubrication holes (6) are distributed along the circumferential direction of the slideway (4).

8. The ball bearing for heavy mining truck according to claim 1, characterized in that: The lubrication hole (6) is provided with a soaking cotton (16), and one end of the soaking cotton (16) extends into the slideway (4).

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