Wear-resistant pivot

Abstract

The utility model discloses a wear-resistant pivot, and relates to the technical field of pivots.The wear-resistant pivot comprises a pivot body, a high-strength bearing sleeve movably arranged on the outer wall of one end of the pivot body matched with the pivot body, and a connecting mechanism installed between the pivot body and the high-strength bearing sleeve; two groups of pin holes are formed in two sides of the inner wall of the high-strength bearing sleeve; the pivot is changed into a split type from an integral type, the wear-resistant high-strength bearing sleeve is mounted on the easy-to-wear part of the pivot body, so that the service life of the pivot is prolonged, only the worn high-strength bearing sleeve needs to be detached and replaced independently in the later period, the whole pivot which is troublesome to machine does not need to be replaced, and therefore the purchase and maintenance cost of a user is reduced; and through the effects of high strength, high wear resistance and the like of the high-strength bearing sleeve, the heat treatment quenching time of the pivot body can be shortened while the overall strength of the pivot is ensured, and the machining efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of pivots, and particularly to an abrasion-resistant pivot. Background Art

[0002] A pivot generally refers to the central axis of an object or a system. In physics or mechanical engineering, a pivot is a component that supports rotational or other forms of movement. For example, the pin in a door hinge is the pivot of the door, supporting the rotational movement of the door. In addition, pivots exist in many mechanical devices, such as the steering shaft of a car and the axle of a vehicle. Pivots are widely used in fields such as tobacco processing equipment and automobiles.

[0003] In a mechanical system, a pivot plays a crucial role. It is the core component that supports other components for rotation or movement, and the design and manufacturing precision of the pivot directly affect the operating efficiency and lifespan of the entire mechanical system.

[0004] Traditional pivots are usually of an integral design. After long-term use, due to wear, the entire pivot needs to be replaced. However, the processing of the pivot is troublesome, and pivots for special parts need to be customized, with a long order cycle. If the entire pivot is replaced, it will increase the procurement and maintenance costs for users. Utility Model Content

[0005] To solve the above problems, this application provides an abrasion-resistant pivot.

[0006] The abrasion-resistant pivot provided by this application adopts the following technical solution:

[0007] An abrasion-resistant pivot includes a pivot body, a high-strength bearing sleeve movably arranged on the outer wall of one end of the pivot body that fits it, and a connection mechanism installed between the pivot body and the high-strength bearing sleeve. A first installation hole is opened at one end of the pivot body, and two groups of pin holes are opened on both sides of the inner wall of the high-strength bearing sleeve. The connection mechanism of the pivot body includes two groups of pin rods slidably arranged in the pivot body and with one end fittingly inserted into the pin holes. A triangular plate is slidably arranged in the pivot body for pressing the two groups of pin rods into the high-strength bearing sleeve when an external connecting member is inserted into the first installation hole. The inclined surface side opened at the end of the pin rod away from the pin hole is in abutting cooperation with the inclined surface of the triangular plate. Two groups of springs are arranged in the pivot body for completely pushing the pin rods into the pivot body when the external connecting member is pulled out of the first installation hole.

[0008] By adopting the above technical solution, the pivot is changed from an integral one to a split one, and the wear-resistant high-strength bearing sleeve is installed at the easily worn part of the pivot body to extend the service life of the pivot. In the later stage, only the worn high-strength bearing sleeve needs to be separately disassembled and replaced, without replacing the entire pivot that is troublesome to process, thereby reducing the procurement and maintenance costs for users.

[0009] Preferably, a second mounting hole is formed at one end of the pivot body away from the first mounting hole, a limiting groove communicating with the first mounting hole is formed in the pivot body, and the two groups of pin rods are slidably connected to both sides of the limiting groove of the pivot body.

[0010] By adopting the above technical solution, the first mounting hole and the second mounting hole can allow the staff to quickly connect an external connecting member to the pivot body. When connecting, the external connecting member is inserted into the adapted first mounting hole and second mounting hole.

[0011] Preferably, a hollow column located inside the limiting groove is fixedly provided at the top of the triangular plate. A limiting ring slidably connected to the limiting groove of the pivot body is fixedly provided on the outer wall of the hollow column. A pressing plate is fixedly provided at the top of the hollow column. The pressing plate is slidably connected to the bottom of the first mounting hole of the pivot body. Connecting rings are fixedly provided on the outer walls of the two groups of pin rods. The spring is fixedly connected between one side of the connecting ring and the inner wall of the limiting groove.

[0012] By adopting the above technical solution, when an external connecting member is inserted into the first mounting hole during installation, the connecting member can push components such as the triangular plate to move. After the moved triangular plate is guided by the inclined surface, the two groups of pin rods can be pushed into the pin holes to quickly connect and fix the pivot body and the high-strength bearing sleeve.

[0013] Preferably, a supporting ring that cooperates with and abuts against the high-strength bearing sleeve is fixedly provided on the outer wall of one end of the pivot body. A positioning mechanism for quickly aligning the pin rod and the pin hole is provided between the pivot body and the high-strength bearing sleeve. The positioning mechanism includes two groups of positioning holes formed in one end of the high-strength bearing sleeve and positioning blocks fixedly provided on the outer wall of one end of the pivot body and inserted into the positioning holes in a matching manner.

[0014] By adopting the above technical solution, after the positioning block is inserted into the corresponding positioning hole, the pin hole and one end of the pin rod can be quickly aligned, which is convenient for one end of the pin rod to be inserted into the pin hole for positioning, thus facilitating the staff to quickly, simply disassemble, install and replace the high-strength bearing sleeve.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. By changing the pivot from an integral one to a split one and installing the wear-resistant high-strength bearing sleeve at the easily worn part of the pivot body, the service life of the pivot is prolonged. In the later stage, only the worn high-strength bearing sleeve needs to be separately disassembled and replaced, without replacing the whole pivot which is troublesome to process, thereby reducing the procurement and maintenance costs of users. And due to the high strength and high wear resistance of the high-strength bearing sleeve, while ensuring the overall strength of the pivot, the heat treatment quenching time of the pivot body can be reduced, and the processing efficiency can be improved;

[0017] 2. By inserting an external connecting piece into the first installation hole during installation, the connecting piece can push components such as a triangular plate to move. After the triangular plate moves, it can guide through an inclined plane to push two groups of pin rods into the pin holes, so as to quickly connect and fix between the pivot body and the high-strength bearing sleeve. When the connecting piece is pulled out of the first installation hole, under the elastic force of the spring, the pin rods will be completely pressed into the pivot body, so that the fixation between the pivot body and the high-strength bearing sleeve is released, which is convenient for the staff to quickly and simply replace the high-strength bearing sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a schematic diagram of the overall structure of a wear-resistant pivot according to an embodiment of the present application;

[0019] Figure 2 FIG. is a front sectional view of the overall structure of a wear-resistant pivot according to an embodiment of the present application;

[0020] Figure 3 Mainly reflected in the embodiment of the present application Figure 2 An enlarged view of Structure A;

[0021] Figure 4 FIG. is a top view of the limiting ring mainly reflected in the embodiment of the present application;

[0022] Reference numerals: 1, pivot body; 11, first installation hole; 12, second installation hole; 13, limiting groove; 2, high-strength bearing sleeve; 21, pin hole; 3, pin rod; 31, spring; 32, connecting ring; 4, triangular plate; 41, hollow column; 42, pressing plate; 43, limiting ring; 5, supporting ring; 6, positioning hole; 61, positioning block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will Figures 1-4 further describe the present application in detail with reference to the attached drawings.

[0024] An embodiment of the present application discloses a wear-resistant pivot.

[0025] A wear-resistant pivot, referring to Figures 1-2, including a pivot body 1, a high-strength bearing sleeve 2, and a connecting mechanism. The high-strength bearing sleeve 2 is movably arranged on the outer wall of one end of the adaptively matched pivot body 1. The high-strength bearing sleeve 2 is installed at the easily worn end of the pivot. The pivot body 1 and the high-strength bearing sleeve 2 form the main structure of the pivot. Among them, the high-strength bearing sleeve 2 has the advantages of high strength and high wear resistance, enabling the staff to install the wear-resistant high-strength bearing sleeve 2 at the easily worn part of the pivot body 1 to extend the overall service life of the pivot. In the later stage, only the worn high-strength bearing sleeve 2 after long-term use needs to be separately disassembled and replaced, without replacing the entire pivot with troublesome processing, thereby reducing the procurement and maintenance costs of users. And through the high strength and high wear resistance of the high-strength bearing sleeve 2, while ensuring the overall strength of the pivot, the heat treatment quenching time of the pivot body 1 can be reduced, and the wear resistance of the pivot is improved.

[0026] Refer to Figures 1-2 , a first mounting hole 11 is opened at one end of the pivot body 1, and a second mounting hole 12 is opened at the end of the pivot body 1 away from the first mounting hole 11. The first mounting hole 11 and the second mounting hole 12 enable the staff to quickly connect an external connecting member to the pivot body 1. When connecting, the external connecting member is inserted into the adaptively matched first mounting hole 11 and second mounting hole 12.

[0027] Refer to Figures 2-3 , two groups of pin holes 21 are opened on both sides of the inner wall of the high-strength bearing sleeve 2. The connecting mechanism of the pivot body 1 includes two groups of pin rods 3 slidably arranged in the pivot body 1 and with one end fittingly inserted into the pin holes 21. A limiting groove 13 communicating with the first mounting hole 11 is opened in the pivot body 1. The two groups of pin rods 3 are slidably connected to both sides of the limiting groove 13 in the pivot body 1. The pivot body 1 can support and limit the two groups of pin rods 3 through the limiting groove 13, enabling the pin rods 3 to only move horizontally. After the two groups of pin rods 3 are fittingly inserted into the corresponding pin holes 21, they will connect and fix the high-strength bearing sleeve 2 and the pivot body 1.

[0028] Refer to Figures 2-3 , a triangular plate 4 for pressing the two groups of pin rods 3 into the high-strength bearing sleeve 2 when an external connecting member is inserted into the first mounting hole 11 is slidably arranged in the pivot body 1. The inclined surface side opened at the end of the pin rod 3 away from the pin hole 21 is in abutting fit with the inclined surface of the triangular plate 4. When the triangular plate 4 moves towards the inner side of the pivot body 1, it can push and insert the two groups of pin rods 3 into the corresponding pin holes 21 through the guiding of its outer inclined surface and the inclined surface at one end of the pin rod 3.

[0029] Refer to Figures 2-4, a hollow column 41 is fixedly provided at the top of the triangular plate 4 inside the limiting groove 13. A limiting ring 43 which is fixedly arranged on the outer wall of the hollow column 41 and slidably connected in the limiting groove 13 of the pivot body 1. The top of the hollow column 41 is fixedly provided with a pressing plate 42. The pressing plate 42 is slidably connected to the bottom of the first mounting hole 11 of the pivot body 1. The inside of the hollow column 41 is hollow, which can reduce its own weight. The limiting ring 43 can connect the hollow column 41 and the pivot body 1, so that the hollow column 41 will not break away from the pivot body 1. The hollow column 41 can connect the pressing plate 42 and the triangular plate 4, and the first mounting hole 11 can limit the adapted pressing plate 42.

[0030] When an external connecting piece is inserted into the first mounting hole 11, it will push the pressing plate 42 towards the bottom of the first mounting hole 11, thereby driving the hollow column 41 and the triangular plate 4 to move towards the inside of the pivot body 1.

[0031] Refer to Figures 2-3 , two groups of springs 31 are arranged inside the pivot body 1 for completely pushing the pin rods 3 into the pivot body 1 when the external connecting piece is pulled out of the first mounting hole 11. Connecting rings 32 are fixedly arranged on the outer walls of the two groups of pin rods 3. The springs 31 are fixedly connected between one side of the connecting ring 32 and the inner wall of the limiting groove 13. The connecting ring 32 can connect the spring 31 and the pin rod 3. And when the external connecting piece is pulled out of the first mounting hole 11, under the elastic force of the spring 31 and the connection of the connecting ring 32, the two groups of pin rods 3 can be completely pushed into the pivot body 1, so that the pin rods 3 are disengaged from the pin holes 21, and then the fixation between the pivot body 1 and the high-strength bearing sleeve 2 is disengaged. And the two groups of pin rods 3 completely pushed into the pivot body 1 will, under the guiding of the inclined surface, reversely press and push the pressing plate 42, the hollow column 41 and the triangular plate 4, so as to lift the components such as the pressing plate 42.

[0032] Refer to Figures 1-2 , a supporting ring 5 which is fixedly arranged on the outer wall of one end of the pivot body 1 and cooperates with and abuts against the high-strength bearing sleeve 2 is provided. The supporting ring 5 can lift and limit one end of the high-strength bearing sleeve 2.

[0033] Refer to Figures 1-2 , a positioning mechanism for quickly aligning the pin rod 3 and the pin hole 21 is arranged between the pivot body 1 and the high-strength bearing sleeve 2. The positioning mechanism includes two groups of positioning holes 6 opened inside one end of the high-strength bearing sleeve 2 and positioning blocks 61 fixedly arranged on the outer wall of one end of the pivot body 1 and inserted into the positioning holes 6 in a matching manner. After the positioning blocks 61 are inserted into the corresponding positioning holes 6, the pin hole 21 and one end of the pin rod 3 can be quickly aligned, which is convenient for one end of the pin rod 3 to be inserted into the pin hole 21, so as to perform positioning, and it is convenient for the staff to quickly, simply disassemble, install and replace the high-strength bearing sleeve 2.

[0034] The implementation principle of a wear-resistant pivot in the embodiment of the present application is as follows:

[0035] During assembly, the staff can slowly fit the high-strength bearing sleeve 2 over the outer side of the mating pivot body 1, and align the positioning block 61 with the corresponding positioning hole 6 to position the high-strength bearing sleeve 2, so that the pin hole 21 and one end of the pin rod 3 can be quickly aligned;

[0036] Then, an external connecting member is inserted into the first mounting hole 11 and the second mounting hole 12 to install the pivot. When the external connecting member is inserted into the first mounting hole 11, it will push the pressing plate 42 towards the bottom of the first mounting hole 11, thereby driving the hollow column 41 and the triangular plate 4 to move towards the inner side of the pivot body 1. When the triangular plate 4 moves towards the inner side of the pivot body 1, it can push and insert the two groups of pin rods 3 into the corresponding pin holes 21 through the guiding of the outer inclined surface of itself and the inclined surface at one end of the pin rod 3, so as to connect and fix the high-strength bearing sleeve 2 and the pivot body 1, thus achieving a quick and simple installation;

[0037] When the wear-resistant high-strength bearing sleeve 2 needs to be replaced due to wear after long-term use, the staff can remove the entire pivot from the external connecting member. When the external connecting member is pulled out from the first mounting hole 11, under the elastic force of the spring 31 and the connection of the connecting ring 32, the two groups of pin rods 3 can be completely pushed into the pivot body 1 to disengage the pin rods 3 from the pin holes 21, and then the pivot body 1 and the high-strength bearing sleeve 2 can be disengaged and fixed, so that the high-strength bearing sleeve 2 can be quickly removed from the pivot body 1 for replacement.

[0038] The above are all preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An abrasion-resistant pivot, comprising a pivot body (1), a high-strength bearing sleeve (2) movably arranged on the outer wall of one end of the adaptively matched pivot body (1), and a connecting mechanism installed between the pivot body (1) and the high-strength bearing sleeve (2), characterized in that: A first mounting hole (11) is opened at one end of the pivot body (1), two groups of pin holes (21) are opened on both sides of the inner wall of the high-strength bearing sleeve (2), the connecting mechanism of the pivot body (1) includes two groups of pin rods (3) slidably arranged in the pivot body (1) and one end of which is cooperatively inserted into the pin holes (21), a triangular plate (4) is slidably arranged in the pivot body (1) and is used for pressing the two groups of pin rods (3) into the high-strength bearing sleeve (2) when an external connecting member is inserted into the first mounting hole (11), the inclined surface side opened at one end of the pin rod (3) away from the pin hole (21) is cooperatively abutted against the inclined surface of the triangular plate (4), and two groups of springs (31) are arranged in the pivot body (1) and are used for completely pushing the pin rods (3) into the pivot body (1) when the external connecting member is pulled out of the first mounting hole (11).

2. The wear-resistant pivot according to claim 1, wherein: A second mounting hole (12) is opened at one end of the pivot body (1) away from the first mounting hole (11), a limiting groove (13) communicating with the first mounting hole (11) is opened in the pivot body (1), and the two groups of pin rods (3) are slidably connected to both sides of the limiting groove (13) of the pivot body (1).

3. The wear-resistant pivot according to claim 2, characterized in that: A hollow column (41) located inside the limiting groove (13) is fixedly arranged at the top of the triangular plate (4).

4. The wear-resistant pivot according to claim 3, characterized in that: A limiting ring (43) slidably connected in the limiting groove (13) of the pivot body (1) is fixedly arranged on the outer wall of the hollow column (41).

5. The wear-resistant pivot according to claim 4, wherein: A pressing plate (42) is fixedly arranged at the top end of the hollow column (41), and the pressing plate (42) is slidably connected to the bottom of the first mounting hole (11) of the pivot body (1).

6. An abrasion-resistant pivot according to claim 5, characterized in that: Connecting rings (32) are fixedly arranged on the outer walls of the two groups of pin rods (3), and the springs (31) are fixedly connected between one side of the connecting ring (32) and the inner wall of the limiting groove (13).

7. A wear-resistant pivot according to claim 1, characterized in that: A supporting ring (5) cooperatively abutted against the high-strength bearing sleeve (2) is fixedly arranged on the outer wall of one end of the pivot body (1).

8. A wear-resistant pivot according to claim 1, characterized in that: A positioning mechanism for quickly aligning the pin rods (3) and the pin holes (21) is arranged between the pivot body (1) and the high-strength bearing sleeve (2), the positioning mechanism includes two groups of positioning holes (6) opened at one end inside the high-strength bearing sleeve (2), and positioning blocks (61) fixedly arranged on the outer wall of one end of the pivot body (1) and cooperatively inserted into the positioning holes (6).

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