Double-layer wear-resistant shaft sleeve

Abstract

The invention relates to the technical field of shaft sleeves, in particular to a double-layer wear-resistant shaft sleeve which comprises a shaft sleeve body, a wear-resistant inner ring is inserted into the inner ring surface of the shaft sleeve body, a tube body of the shaft sleeve body is sleeved with a wear-resistant outer ring, one end of the wear-resistant inner ring and one end of the wear-resistant outer ring are integrally formed on a connecting ring, and a screw is inserted into the surface of the connecting ring. The screw rod is fixed at one end of the shaft sleeve body, the surface of the screw rod is sleeved and screwed with a nut, and the nut clamps the connecting ring at one end of the shaft sleeve body; the double-layer wear-resistant shaft sleeve has the beneficial effects that the wear-resistant inner ring and the wear-resistant outer ring are additionally arranged on the inner ring surface and the outer ring surface of the shaft sleeve body respectively, wear-resistant metal materials are adopted, the wear resistance of the shaft sleeve is effectively improved, and the service life of the shaft sleeve is prolonged. When the wear-resistant inner ring or the wear-resistant outer ring is seriously worn, the wear-resistant inner ring or the wear-resistant outer ring only needs to be detached from the shaft sleeve body and replaced with a new wear-resistant ring, the whole shaft sleeve does not need to be replaced, and therefore maintenance and replacement cost is greatly reduced.

Description

Technical Field

[0001] The invention relates to the field of shaft sleeves, in particular to a double-layer wear-resistant shaft sleeve. Background Art

[0002] In mechanical transmission systems, sleeves are important transmission components that bear the functions of support, positioning and torque transmission. However, during the use of traditional sleeves, due to the direct contact between the inner and outer ring surfaces of the sleeves and the transmission components, they are often easily worn, resulting in the degradation of sleeve performance, and even the need to replace the entire sleeve. This not only increases maintenance costs, but also affects the normal operation of the equipment.

[0003] In order to solve this problem, some wear-resistant sleeves have appeared on the market, but most of these sleeves are made of integral wear-resistant materials. Although the wear resistance is improved, the cost is relatively high. In addition, when a certain part of the sleeve is severely worn, the entire sleeve still needs to be replaced, and partial replacement cannot be achieved, resulting in a waste of resources. Summary of the invention

[0004] The purpose of the present invention is to provide a double-layer wear-resistant sleeve to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a double-layer wear-resistant sleeve, comprising a sleeve body, the inner ring surface of the sleeve body is inserted with a wear-resistant inner ring, the tube body of the sleeve body is sleeved with a wear-resistant outer ring, one end of the wear-resistant inner ring and the wear-resistant outer ring are integrally formed on a connecting ring, a screw is inserted into the surface of the connecting ring, the screw is fixed to one end of the sleeve body, a nut is sleeved and threaded on the surface of the screw, and the nut clamps the connecting ring to one end of the sleeve body.

[0006] Preferably, the sleeve body is a "T"-shaped circular tube, the inner ring surface of the sleeve body is provided with an inner groove, the inner groove is a circular groove, the depth of the inner groove is smaller than the tube length of the sleeve body, the wear-resistant inner ring is inserted in the inner groove, and the inner ring diameter of the wear-resistant inner ring is equal to the inner ring diameter of the sleeve body.

[0007] Preferably, a card slot is provided at one end of the wear-resistant inner ring, and the card slot is an annular groove with an arc-shaped fracture. An introduction ring is inserted into the interior of the card slot, and one end of the introduction ring is fixed to the surface of the inner groove. A rubber ferrule is fixed on the other end of the introduction ring. The rubber ferrule is a circular ring structure with a circular cross-section. The diameter of the circular surface of the rubber ferrule is larger than the groove width of the card slot, and after the introduction ring is inserted into the card slot, the rubber ferrule is clamped between the card slot and the introduction ring to produce elastic deformation.

[0008] Preferably, one end of the wear-resistant outer ring is provided with a second card slot, and the second card slot is an annular groove with an arc-shaped fracture. An introduction ring is inserted into the interior of the second card slot, and one end of the introduction ring is fixed to the surface of the sleeve body, and the other end of the introduction ring is sleeved and fixed with a rubber sleeve. The rubber sleeve is a circular ring structure with a circular cross-section. The diameter of the circular surface of the rubber sleeve is larger than the groove width of the second card slot, and after the introduction ring is inserted into the second card slot, the rubber sleeve is clamped between the second card slot and the introduction ring to produce elastic deformation.

[0009] Preferably, a rubber gasket ring 1 is fixed to the surface of the inner groove, and the rubber gasket ring 1 is clamped between the inner groove and the wear-resistant inner ring.

[0010] Preferably, a second rubber gasket ring is fixed on the surface of the shaft sleeve body, and the second rubber gasket ring is clamped between the wear-resistant outer ring and the shaft sleeve body.

[0011] Preferably, an embedding groove is provided on the surface of the connecting ring, a through hole is provided on the surface of the embedding groove, a screw rod passes through the through hole, and one end of the screw rod is located inside the embedding groove.

[0012] Preferably, a rubber gasket is fixed on the surface of the embedding groove, the rubber gasket is in the form of a circular ring, the inner ring diameter of the rubber gasket is equal to the aperture of the perforation, and the rubber gasket is clamped between the embedding groove and the nut.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The double-layer wear-resistant sleeve proposed in the present invention is made of wear-resistant metal material by adding a wear-resistant inner ring and a wear-resistant outer ring to the inner ring surface and the outer ring surface of the sleeve body, thereby effectively improving the wear resistance of the sleeve and extending the service life of the sleeve. When the wear-resistant inner ring or the wear-resistant outer ring is severely worn, it only needs to be removed from the sleeve body and replaced with a new wear-resistant ring, without replacing the entire sleeve, thereby greatly reducing the maintenance and replacement costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the connection structure of the wear-resistant inner ring and the connection ring of the present invention;

[0017] Figure 3 It is a side view of the structure of the present invention;

[0018] Figure 4 for Figure 3 Structural cross-section view at AA in the middle;

[0019] Figure 5 for Figure 4 A schematic diagram of the structure enlargement in the middle;

[0020] Figure 6 for Figure 4 A magnified schematic diagram of the structure at B in the middle;

[0021] Figure 7 This is a schematic diagram of the structure of the shaft sleeve body of the present invention;

[0022] Figure 8 This is a schematic diagram of the connection structure between the wear-resistant inner ring and the wear-resistant outer ring of the present invention;

[0023] Fig. 9 It is a schematic diagram of the connecting ring structure of the present invention.

[0024] In the figure: sleeve body 1, inner groove 2, wear-resistant inner ring 3, wear-resistant outer ring 4, connecting ring

[0025] 5. Slot 1, 6. Lead-in ring 1, 7. Rubber ferrule 1, 8. Slot 2, 9. Lead-in ring 2, 10. Rubber ferrule 2, 11. Rubber gasket 1, 12. Rubber gasket 2, 13. Mounting groove 14. Through hole 15. Screw 16. Nut 17. Rubber gasket 18. DETAILED DESCRIPTION

[0026] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 9 The present invention provides a technical solution: a double-layer wear-resistant sleeve, comprising a sleeve body 1, the inner ring surface of the sleeve body 1 is plugged with a wear-resistant inner ring 3, the sleeve body 1 is a "T"-shaped round tube, the inner ring surface of the sleeve body 1 is provided with an inner groove 2, the inner groove 2 is a circular groove, the depth of the inner groove 2 is less than the tube length of the sleeve body 1, the wear-resistant inner ring 3 is plugged into the inner groove 2, the inner ring diameter of the wear-resistant inner ring 3 is equal to the inner ring diameter of the sleeve body 1, a wear-resistant outer ring 4 is sleeved on the tube body of the sleeve body 1, one end of the wear-resistant inner ring 3 and the wear-resistant outer ring 4 are both integrally formed on a connecting ring 5, a screw 16 is inserted on the surface of the connecting ring 5, the screw 16 is fixed to one end of the sleeve body 1, a nut 17 is sleeved on the surface of the screw 16 and threaded, and the nut 17 clamps the connecting ring 5 at one end of the sleeve body 1.

[0028] During use, in order to avoid the problem of the need to replace the entire sleeve body 1 due to wear of the inner ring surface or the outer ring surface during use of the sleeve body 1, a wear-resistant inner ring 3 and a wear-resistant outer ring 4 are respectively provided on the inner and outer sides of the sleeve body 1 and the inner groove 2. The wear-resistant inner ring 3 and the wear-resistant outer ring 4 are made of wear-resistant metal materials to form a wear-resistant protective structure on the inner and outer sides of the sleeve body 1. When the wear-resistant inner ring 3 and the wear-resistant outer ring 4 are worn, the wear-resistant inner ring 3 and the wear-resistant outer ring 4 are removed from the end of the sleeve body 1 and replaced, thereby reducing the maintenance and replacement costs of the sleeve body 1.

[0029] A groove 6 is provided at one end of the wear-resistant inner ring 3. The groove 6 is an annular groove with an arc-shaped fracture. An introduction ring 7 is inserted into the interior of the groove 6. One end of the introduction ring 7 is fixed to the surface of the inner groove 2. A rubber sleeve 8 is fixed on the other end of the introduction ring 7. The rubber sleeve 8 is a circular ring structure with a circular cross section. The diameter of the circular surface of the rubber sleeve 8 is larger than the groove width of the groove 6. After the introduction ring 7 is inserted into the groove 6, the rubber sleeve 8 is clamped between the groove 6 and the introduction ring 7 to generate elastic deformation; the wear-resistant outer ring 4 A card slot 29 is provided at one end, and the card slot 29 is an annular groove with an arc-shaped fracture. An introduction ring 20 is inserted into the interior of the card slot 29. One end of the introduction ring 10 is fixed to the surface of the sleeve body 1, and the other end of the introduction ring 10 is sleeved and fixed with a rubber ferrule 11. The rubber ferrule 11 is a circular ring structure with a circular cross section. The circular surface diameter of the rubber ferrule 11 is larger than the groove width of the card slot 29. After the introduction ring 10 is inserted into the card slot 29, the rubber ferrule 11 is clamped between the card slot 29 and the introduction ring 10 to generate elastic deformation.

[0030] When in use, after the wear-resistant protective frame consisting of the wear-resistant inner ring 3, the wear-resistant outer ring 4 and the connecting ring 5 is installed on the sleeve body 1, the connecting ring 5 is squeezed and pushed. When the connecting ring 5 rests against one end of the sleeve body 1, the guide ring 1 7 and the rubber clamping sleeve 1 8 are inserted into the groove 1 6, and the guide ring 2 10 and the rubber clamping sleeve 2 11 are inserted into the groove 2 9, thus constituting a temporary limiting effect when the wear-resistant protective frame is installed on the sleeve body 1.

[0031] An embedding groove 14 is provided on the surface of the connecting ring 5, and a through hole 15 is provided on the surface of the embedding groove 14. A screw 16 passes through the through hole 15, and one end of the screw 16 is located inside the embedding groove 14; a rubber gasket 18 is fixed on the surface of the embedding groove 14, and the rubber gasket 18 is a circular ring sheet. The inner ring diameter of the rubber gasket 18 is equal to the aperture of the through hole 15, and the rubber gasket 18 is clamped between the embedding groove 14 and the nut 17; a rubber gasket ring 12 is fixed on the surface of the inner groove 2, and the rubber gasket ring 12 is clamped between the inner groove 2 and the wear-resistant inner ring 3; a rubber gasket ring 2 13 is fixed on the surface of the sleeve body 1, and the rubber gasket ring 2 13 is clamped between the wear-resistant outer ring 4 and the sleeve body 1.

[0032] When in use, after the wear-resistant protective frame is sleeved on the sleeve body 1, the screw 16 passes through the through hole 15. At this time, after the nut 17 is sleeved on the end of the screw 16, the nut 17 is screwed and locked. The connecting ring 5 is tightly clamped between the nut 17 and the sleeve body 1, and at this time, the rubber gasket 12, the rubber gasket 2 13 and the rubber gasket 18 are compressed to produce elastic deformation, thereby realizing elastic anti-slip limit when the screw 16 and the nut 17 are screwed.

[0033] The detailed process of double-layer wear-resistant sleeve is as follows:

[0034] Preparation stage: Ensure that all parts (sleeve body 1, wear-resistant inner ring 3, wear-resistant outer ring 4, connecting ring 5, guide ring 1 7, rubber ferrule 1 8, guide ring 2 10, rubber ferrule 2 11, screw 16, nut 17, rubber gasket 18, rubber gasket 1 12, rubber gasket 2 13) are complete and intact. Check whether the inner ring surface of the sleeve body 1 is clean, free of impurities or damage.

[0035] Install the wear-resistant inner ring: Align the wear-resistant inner ring 3 with the inner groove 2 opened on the inner ring surface of the sleeve body 1 and insert it into it. Make sure that the inner ring diameter of the wear-resistant inner ring 3 is equal to the inner ring diameter of the sleeve body 1 to achieve a smooth transition. When one end of the wear-resistant inner ring 3 reaches the appropriate position of the inner groove 2, the introduction ring 17 and the rubber ferrule 18 will automatically insert into the groove 16 of the wear-resistant inner ring 3. The rubber ferrule 18 will produce elastic deformation between the groove 16 and the introduction ring 17 to achieve temporary limit. The wear-resistant outer ring 4 is sleeved on the outer surface of the sleeve body 1. Make sure that one end of the wear-resistant outer ring 4 is connected to one end of the wear-resistant inner ring 3 through the connecting ring 5. When the wear-resistant outer ring 4 reaches the appropriate position, the introduction ring 2 10 and the rubber ferrule 2 11 will automatically insert into the groove 2 9 of the wear-resistant outer ring 4. The rubber ferrule 2 11 will produce elastic deformation between the groove 2 9 and the introduction ring 2 10 to achieve temporary limit.

[0036] Fixing of the connecting ring and the sleeve body: Align the embedding groove 14 on the surface of the connecting ring 5 with one end of the sleeve body 1. Ensure that the screw 16 passes through the through hole 15 on the surface of the connecting ring 5 and enters the interior of the sleeve body 1 or the preset screw hole. Sleeve the nut 17 on the end of the screw 16 and tighten it. During the screwing process, the rubber gasket 18 will be clamped between the embedding groove 14 and the nut 17 to provide additional elastic anti-slip limit.

[0037] Inspection and adjustment: Ensure that the wear-resistant inner ring 3, the wear-resistant outer ring 4 and the connecting ring 5 are firmly fixed on the sleeve body 1. Check whether the rubber gasket 1 12 and the rubber gasket 2 13 are properly clamped between the corresponding parts and produce elastic deformation. Ensure that there is no looseness or abnormal wear between all parts.

[0038] Use and maintenance: During use, check the wear of the sleeve regularly. If the wear-resistant inner ring 3 or the wear-resistant outer ring 4 is found to be severely worn, remove and replace with a new wear-resistant ring according to the above steps. Ensure that all parts are properly installed and fixed after replacement.

[0039] Disassembly and replacement: When the wear ring needs to be replaced, first loosen the nut 17 and remove the connecting ring 5. Then remove the wear inner ring 3 and the wear outer ring 4 from the sleeve body 1. Replace the new wear ring according to the above installation steps and re-fix the connecting ring 5.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-layer wear-resistant sleeve, comprising a sleeve body (1), characterized in that: A wear-resistant inner ring (3) is inserted into the inner ring surface of the shaft sleeve body (1), a wear-resistant outer ring (4) is sleeved on the tube body of the shaft sleeve body (1), one end of the wear-resistant inner ring (3) and the wear-resistant outer ring (4) are integrally formed on a connecting ring (5), a screw (16) is inserted into the surface of the connecting ring (5), the screw (16) is fixed to one end of the shaft sleeve body (1), a nut (17) is sleeved on the surface of the screw (16) and is threaded, and the nut (17) clamps the connecting ring (5) to one end of the shaft sleeve body (1).

2. A double-layer wear-resistant sleeve according to claim 1, characterized in that: The shaft sleeve body (1) is in the form of a T-shaped circular tube. An inner groove (2) is provided on the inner ring surface of the shaft sleeve body (1). The inner groove (2) is in the form of a circular ring groove. The depth of the inner groove (2) is less than the tube length of the shaft sleeve body (1). The wear-resistant inner ring (3) is inserted into the inner groove (2). The inner ring diameter of the wear-resistant inner ring (3) is equal to the inner ring diameter of the shaft sleeve body (1).

3. A double-layer wear-resistant sleeve according to claim 2, characterized in that: A groove (6) is provided at one end of the wear-resistant inner ring (3), and the groove (6) is an annular groove with a circular arc-shaped fracture. An introduction ring (7) is inserted into the interior of the groove (6), and one end of the introduction ring (7) is fixed to the surface of the inner groove (2). A rubber sleeve (8) is sleeved and fixed to the other end of the introduction ring (7). The rubber sleeve (8) is a circular ring structure with a circular cross section. The diameter of the circular surface of the rubber sleeve (8) is larger than the groove width of the groove (6). After the introduction ring (7) is inserted into the groove (6), the rubber sleeve (8) is clamped between the groove (6) and the introduction ring (7) to generate elastic deformation.

4. The double-layer wear-resistant sleeve according to claim 1, characterized in that: A second clamping groove (9) is provided at one end of the wear-resistant outer ring (4), the second clamping groove (9) is an annular groove with a circular arc-shaped fracture, an introduction ring (10) is inserted into the interior of the second clamping groove (9), one end of the introduction ring (10) is fixed to the surface of the shaft sleeve body (1), and a second rubber clamping sleeve (11) is sleeved and fixed on the other end of the introduction ring (10), the second rubber clamping sleeve (11) is a circular ring structure with a circular cross section, the circular surface diameter of the second rubber clamping sleeve (11) is larger than the groove width of the second clamping groove (9), and after the second introduction ring (10) is inserted into the second clamping groove (9), the second rubber clamping sleeve (11) is clamped between the second clamping groove (9) and the second introduction ring (10) to generate elastic deformation.

5. The double-layer wear-resistant sleeve according to claim 2, characterized in that: A rubber gasket ring (12) is fixed on the surface of the inner groove (2), and the rubber gasket ring (12) is clamped between the inner groove (2) and the wear-resistant inner ring (3).

6. The double-layer wear-resistant sleeve according to claim 1, characterized in that: A second rubber gasket ring (13) is fixed on the surface of the shaft sleeve body (1), and the second rubber gasket ring (13) is clamped between the wear-resistant outer ring (4) and the shaft sleeve body (1).

7. The double-layer wear-resistant sleeve according to claim 1, characterized in that: The surface of the connecting ring (5) is provided with an embedding groove (14), the surface of the embedding groove (14) is provided with a through hole (15), a screw rod (16) passes through the through hole (15), and one end of the screw rod (16) is located inside the embedding groove (14).

8. The double-layer wear-resistant sleeve according to claim 7, characterized in that: A rubber gasket (18) is fixed on the surface of the embedding groove (14). The rubber gasket (18) is in the form of a circular ring. The inner ring diameter of the rubber gasket (18) is equal to the hole diameter of the through hole (15). The rubber gasket (18) is clamped between the embedding groove (14) and the nut (17).

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