Rotary suite for rotary connection

Abstract

The utility model discloses a rotary external member for rotary connection, which comprises an inner copper sleeve and an outer copper sleeve, the inner copper sleeve is cylindrical, the side wall of the inner copper sleeve is provided with a plurality of hollow holes, the hollow holes are filled with graphite through adhesive, the outer copper sleeve is square, the front side surface and the rear side surface of the outer copper sleeve are provided with copper sleeve holes in a penetrating manner, and the inner copper sleeve is mounted in the copper sleeve holes. The outer wall of the inner copper sleeve is attached to the inner wall of the copper sleeve hole, a first limiting structure used for preventing the inner copper sleeve from rotating in the outer copper sleeve is arranged between the inner copper sleeve and the outer copper sleeve, a mounting structure is arranged on the outer copper sleeve, and wear-resistant coating layers are arranged on the inner wall of the inner copper sleeve and the outer wall of the outer copper sleeve. The inner copper sleeve is used for self-lubricating rotation, the outer copper sleeve can improve the anti-pressure capability of the graphite copper sleeve, in addition, the wear-resistant coating layer can improve the wear resistance of the graphite sleeve and can play a role in corrosion prevention, and the service life of the graphite copper sleeve is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, and particularly relates to a rotating kit for rotational connection. Background Art

[0002] Graphite copper bushing, also known as self-lubricating bearing, is a product with self-lubricating performance that develops orderly arranged and appropriately sized holes on the friction surface of the copper bushing as the metal matrix and embeds graphite or molybdenum disulfide as a solid lubricant. At present, graphite copper bushings have been widely used in low-speed heavy-load, high-speed light-load and other occasions such as construction machinery, metallurgical machinery, mining machinery, locomotive brackets, rolling mill equipment, ship machinery, die equipment, textile machinery, steam turbines, etc.

[0003] Since the bearing also has to bear pressure as a supporting component during rotation, the existing graphite copper bushing is made of copper material and is provided with a number of hollow holes for filling graphite, thus reducing its compressive bearing capacity. Content of the Utility Model

[0004] In order to solve the deficiencies in the above-mentioned prior art, the utility model provides a rotating kit for rotational connection.

[0005] In order to achieve the above technical effects, the utility model adopts the following scheme:

[0006] A rotating kit for rotational connection includes an inner copper bushing and an outer copper bushing. The inner copper bushing is cylindrical, and there are a number of hollow holes on the side wall of the inner copper bushing. Graphite is filled in the hollow holes through an adhesive. The outer copper bushing is square-shaped, and copper bushing holes are provided through the front and rear sides of the outer copper bushing. The copper bushing holes match the inner copper bushing. The inner copper bushing is installed in the copper bushing holes, and the outer wall of the inner copper bushing is attached to the inner wall of the copper bushing holes. A first limiting structure is provided between the inner copper bushing and the outer copper bushing to prevent the inner copper bushing from rotating within the outer copper bushing. An installation structure is provided on the outer copper bushing, and wear-resistant coating layers are provided on the inner wall of the inner copper bushing and the outer wall of the outer copper bushing.

[0007] In a preferred technical solution, the outer copper bushing includes an upper combination block at the upper end and a lower combination block at the lower end. The upper combination block and the lower combination block are connected by bolts. The lower end of the upper combination block arches upward to form an upper arc-shaped groove, and the cross-section of the upper arc-shaped groove is semi-circular. The upper end of the lower combination block is recessed downward to form a lower arc-shaped groove corresponding to the upper arc-shaped groove, and the cross-section of the lower arc-shaped groove is semi-circular. The upper arc-shaped groove and the lower arc-shaped groove together form the copper bushing hole. The inner copper bushing is mainly composed of an upper arc-shaped part and a lower arc-shaped part with semi-circular cross-sections. The upper arc-shaped part matches the upper arc-shaped groove and is located within the upper arc-shaped groove, and the lower arc-shaped part matches the lower arc-shaped groove and is located within the lower arc-shaped groove.

[0008] Preferred technical solution: The first limiting structure includes a first limiting groove provided at the upper end of the copper sleeve hole and a second limiting groove located at the upper end of the inner copper sleeve. The first limiting groove and the second limiting groove together form an upper limiting hole, and an upper limiting post is inserted into the upper limiting hole in a matching manner. The first limiting structure further includes a third limiting groove provided at the lower end of the copper sleeve hole and a fourth limiting groove located at the lower end of the inner copper sleeve. The third limiting groove and the fourth limiting groove together form a lower limiting hole, and a lower limiting post is inserted into the lower limiting hole in a matching manner.

[0009] Preferred technical solution: A second limiting structure for preventing the inner copper sleeve from sliding within the outer copper sleeve is further provided between the inner copper sleeve and the outer copper sleeve. The second limiting structure includes an upper limiting edge protruding from the outer surface of the upper arc-shaped member and extending along the arc of the upper arc-shaped member, and a lower limiting edge protruding from the outer surface of the lower arc-shaped member and extending along the arc of the lower arc-shaped member. An upper limiting groove matching the upper limiting edge is provided in the upper arc-shaped groove, and the upper limiting edge is snapped into the upper limiting groove. A lower limiting groove matching the lower limiting edge is provided in the lower arc-shaped groove, and the lower limiting edge is snapped into the lower limiting groove.

[0010] Preferred technical solution: The mounting structure includes a mounting seat fixedly provided at the lower end of the outer copper sleeve, and a plurality of mounting holes are provided in the mounting seat.

[0011] Compared with the prior art, the beneficial effects are as follows:

[0012] The structure of the present utility model is simple and convenient to use. By providing a double-layer structure of an inner copper sleeve and an outer copper sleeve, the inner copper sleeve is used for self-lubricating rotation, and the outer copper sleeve can improve the compressive capacity of the graphite copper sleeve. In addition, by providing a wear-resistant coating layer, the wear resistance of the graphite sleeve can be improved and the anti-corrosion effect can be achieved, thereby extending the service life of the graphite copper sleeve of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural view of the present utility model;

[0014] Figure 2 is a cross-sectional view of the present utility model;

[0015] Figure 3 is a schematic structural view of the inner copper sleeve in the present utility model;

[0016] Figure 4 is a schematic structural view of the outer copper sleeve in the present utility model.

[0017] Reference Numerals: 1, inner copper sleeve; 2, upper arc-shaped member; 3, lower arc-shaped member; 4, outer copper sleeve; 5, upper combination block; 6, lower combination block; 7, bolt; 8, hollow hole; 9, upper limit post; 10, mounting seat; 11, mounting hole; 12, second limit groove; 13, fourth limit groove; 14, upper limit edge; 15, third limit groove; 16, first limit groove; 17, upper limit groove; 18, lower limit groove; 19, lower limit edge; 20, lower limit post. Detailed Implementation Manner

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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 of the embodiments.

[0019] A rotating kit for rotational connection includes an inner copper sleeve 1 and an outer copper sleeve 4. The inner copper sleeve 1 is used to install the journal of a mechanical rotating shaft for rotation, and the outer copper sleeve 4 is used to improve the compressive performance of the graphite copper sleeve. The inner copper sleeve 1 is in a cylindrical shape, and there are several hollow holes 8 on the side wall of the inner copper sleeve 1. Graphite is filled in the hollow holes 8 through an adhesive, and the method of filling graphite is a prior art. The outer copper sleeve 4 is in a square shape, and copper sleeve holes are provided through the front and rear side surfaces of the outer copper sleeve 4. The copper sleeve holes are matched with the inner copper sleeve 1, and the inner copper sleeve 1 is installed in the copper sleeve holes, with the outer wall of the inner copper sleeve 1 attached to the inner wall of the copper sleeve holes. A first limiting structure is provided between the inner copper sleeve 1 and the outer copper sleeve 4 to prevent the inner copper sleeve 1 from rotating within the outer copper sleeve 4, avoiding the situation that when the mechanical rotating shaft rotates on the inner copper sleeve 1, it drives the inner copper sleeve 1 to rotate within the outer copper sleeve 4. An installation structure is provided on the outer copper sleeve 4 for installing the graphite copper sleeve on a mechanical device. Wear-resistant coating layers are provided on the inner wall of the inner copper sleeve 1 and the outer wall of the outer copper sleeve 4. The wear-resistant coating layer uses KNM1000 shaft surface wear-resistant coating, which is composed of ceramic composite powder. By thermally spraying it on the surface of a metal matrix, a ceramic coating with high temperature resistance, oxidation resistance, high hardness, smoothness, wear resistance, corrosion resistance, and impact resistance can be formed. This can ensure the size of the coating and improve the surface wear resistance of shaft parts, thereby extending their service life.

[0020] Preferred technical solution: The outer copper sleeve 4 includes an upper combined block 5 at the upper end and a lower combined block 6 at the lower end. The upper combined block 5 and the lower combined block 6 are connected by bolts 7. The bolts 7 vertically pass through the upper combined block 5 and the lower combined block 6 for locking connection. The lower end of the upper combined block 5 is arched upward to form an upper arc groove, and the cross-section of the upper arc groove is semi-circular. The upper end of the lower combined block 6 is recessed downward to form a lower arc groove corresponding to the upper arc groove, and the cross-section of the lower arc groove is semi-circular. The upper arc groove and the lower arc groove together form a copper sleeve hole. The inner copper sleeve 1 is mainly composed of an upper arc member 2 and a lower arc member 3 with semi-circular cross-sections. The upper arc member 2 is matched with the upper arc groove and is located in the upper arc groove, and the lower arc member 3 is matched with the lower arc groove and is located in the lower arc groove.

[0021] The journal of the mechanical rotating shaft is clamped by the upper arc member 2 and the lower arc member 3, and then the lower arc member 3 and the upper arc member 2 are clamped by the upper combined block 5 and the lower combined block 6. This structural design facilitates the disassembly and installation of the graphite bearing and the mechanical rotating shaft of the present invention.

[0022] Preferred technical solution: The first limiting structure includes a first limiting groove 16 provided at the upper end of the copper sleeve hole and a second limiting groove 12 located at the upper end of the inner copper sleeve 1. The first limiting groove 16 and the second limiting groove 12 together form an upper limiting hole, and an upper limiting post 9 is inserted into the upper limiting hole in a matching manner. The first limiting structure also includes a third limiting groove 15 provided at the lower end of the copper sleeve hole and a fourth limiting groove 13 located at the lower end of the inner copper sleeve 1. The third limiting groove 15 and the fourth limiting groove 13 together form a lower limiting hole, and a lower limiting post 20 is inserted into the lower limiting hole in a matching manner.

[0023] After the upper limiting post 9 is inserted into the upper limiting hole, sliding and rotation between the upper arc member 2 and the upper combined block 5 can be avoided. After the lower limiting post 20 is inserted into the lower limiting hole, rotation between the lower arc member 3 and the lower combined block 6 can be avoided.

[0024] Preferred technical solution: A second limiting structure for preventing the inner copper sleeve 1 from sliding in the outer copper sleeve 4 is further provided between the inner copper sleeve 1 and the outer copper sleeve 4. The second limiting structure includes an upper limiting edge 14 protruding from the outer surface of the upper arc member 2 and extending along the arc of the upper arc member 2, and a lower limiting edge 19 protruding from the outer surface of the outer lower arc member 3 and extending along the arc of the lower arc member 3. The upper arc groove has an upper limiting groove 17 matching the upper limiting edge 14, and the upper limiting edge 14 is snapped into the upper limiting groove 17. The lower arc groove has a lower limiting groove 18 matching the lower limiting edge 19, and the lower limiting edge 19 is snapped into the lower limiting groove 18.

[0025] This structure can prevent the inner copper sleeve 1 from sliding along the length direction of the copper sleeve hole.

[0026] Preferred technical solution: The installation structure includes a mounting seat 10 fixedly provided at the lower end of the outer copper sleeve 4, and a plurality of mounting holes 11 are formed in the mounting seat 10.

[0027] The graphite copper sleeve is installed on the mechanical equipment through the mounting seat 10.

[0028] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It 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 to the present invention.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more, unless otherwise specifically defined.

[0030] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

Claims

1. A rotating kit for rotating connection, characterized in that: The invention comprises an inner copper sleeve (1) and an outer copper sleeve (4), wherein the inner copper sleeve (1) is cylindrical, and has a plurality of hollow holes (8) on its side wall, wherein graphite is filled in the hollow holes (8) through an adhesive, and the outer copper sleeve (4) is block-shaped, and copper sleeve holes are provided through the front and rear sides of the outer copper sleeve (4), wherein the copper sleeve holes match the inner copper sleeve (1), and the inner copper sleeve (1) is installed in the copper sleeve holes, and the outer wall of the inner copper sleeve (1) is attached to the inner wall of the copper sleeve holes, and a first limiting structure for preventing the inner copper sleeve (1) from rotating in the outer copper sleeve (4) is provided between the inner copper sleeve (1) and the outer copper sleeve (4), and a mounting structure is provided on the outer copper sleeve (4), and a wear-resistant coating layer is provided on the inner wall of the inner copper sleeve (1) and the outer wall of the outer copper sleeve (4).

2. The rotating kit for rotating connection according to claim 1, characterized in that: The outer copper sleeve (4) comprises an upper assembly block (5) located at the upper end and a lower assembly block (6) located at the lower end. The upper assembly block (5) and the lower assembly block (6) are connected by bolts (7). The lower end of the upper assembly block (5) is arched upward and is provided with an upper arc groove, the cross section of which is semicircular. The upper end of the lower assembly block (6) is recessed downward and is provided with a lower arc groove corresponding to the upper arc groove, the cross section of which is semicircular. The upper arc groove and the lower arc groove together constitute a copper sleeve hole. The inner copper sleeve (1) is mainly composed of an upper arc piece (2) and a lower arc piece (3) both of which are semicircular in cross section. The upper arc piece (2) matches the upper arc groove and is located in the upper arc groove. The lower arc piece (3) matches the lower arc groove and is located in the lower arc groove.

3. The rotating kit for rotating connection according to claim 1, characterized in that: The first limiting structure comprises a first limiting groove (16) arranged at the upper end of the copper sleeve hole and a second limiting groove (12) located at the upper end of the inner copper sleeve (1); the first limiting groove (16) and the second limiting groove (12) are combined to form an upper limiting hole, and an upper limiting column (9) is matched and inserted into the upper limiting hole; the first limiting structure also comprises a third limiting groove (15) arranged at the lower end of the copper sleeve hole and a fourth limiting groove (13) located at the lower end of the inner copper sleeve (1); the third limiting groove (15) and the fourth limiting groove (13) are combined to form a lower limiting hole, and a lower limiting column (20) is matched and inserted into the lower limiting hole.

4. The rotating kit for rotating connection according to claim 2, characterized in that: A second limiting structure for preventing the inner copper sleeve (1) from sliding in the outer copper sleeve (4) is also provided between the inner copper sleeve (1) and the outer copper sleeve (4), the second limiting structure comprising an upper limit edge (14) protruding from the outer surface of the upper arc-shaped member (2) and extending along the arc of the upper arc-shaped member (2), and a lower limit edge (19) protruding from the outer surface of the outer lower arc-shaped member (3) and extending along the arc of the lower arc-shaped member (3), the upper arc-shaped groove having an upper limit groove (17) matching the upper limit edge (14), the upper limit edge (14) being snapped into the upper limit groove (17), the lower arc-shaped groove having a lower limit groove (18) matching the lower limit edge (19), the lower limit edge (19) being snapped into the lower limit groove (18).

5. The rotating kit for rotating connection according to claim 1, characterized in that: The mounting structure comprises a mounting seat (10) fixedly arranged at the lower end of the outer copper sleeve (4), and a plurality of mounting holes (11) are formed on the mounting seat (10).

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