A shaft sleeve with a protective structure

Abstract

The present invention relates to the technical field of shaft sleeves, and specifically to a shaft sleeve with a protective structure, comprising a shaft sleeve body, a protective sleeve being sleeved on the outer side of the shaft sleeve body, a receiving groove being provided on the inner ring surface of one end of the protective sleeve, a protective film cover being fixed inside the receiving groove, a rubber ring being provided at one end of the protective film cover, and the rubber ring being inserted into the inner ring opening of one end of the protective sleeve; the beneficial effect is as follows: the shaft sleeve with a protective structure proposed by the present invention has a protective sleeve sleeved on the outer side of the shaft sleeve body, the protective sleeve having a circular tube structure with an "L"-shaped cross-section, which can tightly wrap the shaft sleeve body to provide effective protection.

Description

Technical Field

[0001] The invention relates to the field of shaft sleeves, in particular to a shaft sleeve with a protective structure. Background Art

[0002] In mechanical equipment and transmission systems, bushings are key components that bear the important functions of supporting, positioning and transmitting torque. However, since bushings are often exposed to harsh working environments such as high temperature, humidity, dust and possible mechanical shocks, their surfaces are susceptible to erosion, wear and even damage, thus affecting the overall performance and life of the equipment.

[0003] Traditional sleeve designs are often made of a single material and lack adequate protective structures. Once the sleeve surface is damaged, the entire sleeve needs to be replaced, which not only increases maintenance costs, but may also extend equipment downtime and affect production efficiency. In order to solve this problem, some sleeves with simple protective layers have appeared on the market, but these protective layers are often fixedly connected to the sleeve body. Once damaged, they also need to be replaced as a whole, with limited protective effects and high costs. Summary of the invention

[0004] The object of the present invention is to provide a shaft sleeve with a protective structure 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 shaft sleeve with a protective structure, comprising a shaft sleeve body, a protective sleeve is provided on the outer side of the shaft sleeve body, a receiving groove is provided on the inner ring surface of one end of the protective sleeve, a protective film cover is fixed inside the receiving groove, a rubber ring is provided at one end of the protective film cover, and the rubber ring is inserted into the inner ring opening of one end of the protective sleeve.

[0006] Preferably, the protective sleeve is a circular tube structure with an "L"-shaped cross-section, the inner ring diameter of one end of the protective sleeve is larger than the inner ring diameter of one end of the sleeve body, and the inner ring diameter of one end of the protective sleeve is smaller than the outer ring diameter of one end of the sleeve body.

[0007] Preferably, an assembling groove is provided on the inner ring surface of the sleeve body, and after the protective sleeve is sleeved on the sleeve body, an assembling strip is inserted into the assembling groove, and the assembling strip is fixed to the outer ring surface of the sleeve body.

[0008] Preferably, the assembling grooves are provided in plurality, and the plurality of assembling grooves are arranged and distributed with equal distance and size along the inner annular surface of the protective sleeve, and the assembling strips and the assembling grooves correspond one to one.

[0009] Preferably, a screw is fixed to the other end of the protective sleeve, and the screw passes through a through hole, and the through hole is opened at the other end of the sleeve body, and a nut is sleeved and threadedly connected to one end of the screw.

[0010] Preferably, there are multiple screw rods, and the multiple screw rods are arranged and distributed at equal distances and sizes along the other end of the protective sleeve.

[0011] Preferably, the receiving groove is an annular groove, a rubber retaining ring is fixed on the inner ring surface of the receiving groove away from the sleeve body, a gap is reserved between one end of the rubber retaining ring and the inner ring surface of the other side of the receiving groove, and the protective film cover passes through the reserved gap.

[0012] Preferably, a first card slot and a second card slot are formed on the inner ring surface of one end of the protective sleeve, the first card slot and the second card slot are symmetrically distributed with respect to the receiving slot, and the first card slot and the second card slot are both annular grooves with arc-shaped fractures.

[0013] Preferably, when the protective film cover is folded inside the storage groove, the rubber ring is inserted into the first card slot.

[0014] Preferably, the protective film cover is pulled out from the receiving groove, passes through the shaft sleeve body, and then is turned outward and sleeved on the protective sleeve, and the rubber ring is inserted into the second card slot.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The shaft sleeve with a protective structure proposed in the present invention has a protective sleeve sleeved on the outer side of the shaft sleeve body. The protective sleeve has a round tube structure with an "L"-shaped cross-section, which can tightly wrap the shaft sleeve body to provide effective protection. More importantly, the protective sleeve is fixed to the shaft sleeve body by a detachable connection method of a screw and a nut, so that the protective sleeve can be replaced separately after severe wear or bumping, without replacing the entire shaft sleeve body, thereby greatly reducing the maintenance cost. A storage groove is provided on the inner ring surface of one end of the protective sleeve, and a protective film cover is fixed inside. When the shaft sleeve is not installed, the film cover can be unfolded to wrap the shaft sleeve body and the protective sleeve in all directions for protection, effectively avoiding erosion and bumping. When the shaft sleeve needs to be installed and used, the protective film cover can be conveniently folded back into the storage groove, and maintained in a storage state by fixing with a rubber ring and a card slot, which is both convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the connection structure between the screw and the sleeve body of the present invention;

[0019] Figure 3 It is a side view of the structure of the present invention;

[0020] Figure 4 for Figure 3 Structural cross-section view at AA in the middle;

[0021] Figure 5 for Figure 4A schematic diagram of the structure enlargement in the middle;

[0022] Figure 6 for Figure 4 A magnified schematic diagram of the structure at B in the middle;

[0023] Figure 7 It is a front view of the structure of the present invention;

[0024] Figure 8 for Figure 7 Structural cross-section view at the middle BB;

[0025] Fig. 9 for Figure 8 A magnified schematic diagram of the structure at C in the middle;

[0026] Fig.10 This is a schematic diagram of the structure of the sleeve body of the present invention;

[0027] Fig.11 It is a schematic diagram of the structure of the protective cover of the present invention.

[0028] In the figure: the sleeve body 1, the protective sleeve 2, the assembly groove 3, the assembly strip 4, the through hole 5, the screw 6, the nut 7, the storage groove 8, the rubber retaining ring 9, the protective film cover 10, the rubber ring 11, the card slot 1 12, the card slot 2 13. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-Figure 11The present invention provides a technical solution: a shaft sleeve with a protective structure, comprising a shaft sleeve body 1, a protective sleeve 2 is sleeved on the outer side of the shaft sleeve body 1, the protective sleeve 2 is a circular tube structure with an "L"-shaped cross section, the inner ring diameter of one end of the protective sleeve 2 is larger than the inner ring diameter of one end of the shaft sleeve body 1, and the inner ring diameter of one end of the protective sleeve 2 is smaller than the outer ring diameter of one end of the shaft sleeve body 1; an assembling groove 3 is opened on the inner ring surface of the shaft sleeve body 1, and after the protective sleeve 2 is sleeved on the shaft sleeve body 1, an assembling strip 4 is inserted into the inner side of the assembling groove 3, and the assembling strip 4 is inserted into the inner side of the assembling groove 3. The strip 4 is fixed on the outer ring surface of the sleeve body 1, and a plurality of assembling grooves 3 are provided, and a plurality of assembling grooves 3 are provided. The plurality of assembling grooves 3 are arranged and distributed at equal distances and sizes along the inner ring surface of the protective sleeve 2, and the assembling strips 4 and the assembling grooves 3 correspond one to one; a screw rod 6 is fixed on the other end of the protective sleeve 2, and the screw rod 6 passes through a through hole 5. The through hole 5 is provided at the other end of the sleeve body 1, and a nut 7 is sleeved and threaded on one end of the screw rod 6; a plurality of screw rods 6 are provided, and the plurality of screw rods 6 are arranged and distributed at equal distances and sizes along the other end of the protective sleeve 2.

[0031] The reason why the protective sleeve 2 is sleeved on the outside of the sleeve body 1 is to protect the sleeve body 1, and a detachable and replaceable structure is formed on the outside of the sleeve body 1, that is, after the protective sleeve 2 is severely worn or bumped, the protective sleeve 2 can be replaced alone without replacing the sleeve body 1, thereby reducing the maintenance cost; when replacing, first loosen the nut 7, screw and remove the nut 7 from the screw 6, pull the protective sleeve 2 along the sleeve body 1, and then sleeve the new protective sleeve 2 on the sleeve body 1, after the screw 6 passes through the through hole 5, the nut 7 is screwed on the screw 6 to prevent the protective sleeve 2 from falling off the sleeve body 1, and an assembly groove 3 and an assembly strip 4 are added between the protective sleeve 2 and the sleeve body 1 to reduce the wear caused by rotation between the sleeve body 1 and the protective sleeve 2.

[0032] A receiving groove 8 is provided on the inner ring surface of one end of the protective sleeve 2, and a protective film cover 10 is fixed inside the receiving groove 8. A rubber ring 11 is provided at one end of the protective film cover 10, and the rubber ring 11 is inserted into the inner ring opening of one end of the protective sleeve 2; the receiving groove 8 is an annular groove, and a rubber retaining ring 9 is fixed on the inner ring surface of the receiving groove 8 on the side away from the sleeve body 1. A gap is reserved between one end of the rubber retaining ring 9 and the inner ring surface of the other side of the receiving groove 8, and the protective film cover 10 passes through the reserved gap; A slot 12 and a slot 2 13 are provided on the inner ring surface of one end of the sleeve 2. The slot 12 and the slot 2 13 are symmetrically distributed about the receiving groove 8, and both the slot 12 and the slot 2 13 are annular grooves with arc-shaped fractures; when the protective film cover 10 is folded inside the receiving groove 8, the rubber ring 11 is inserted into the slot 1 12; after the protective film cover 10 is pulled out from the receiving groove 8, it passes through the shaft sleeve body 1 and is turned outward and sleeved on the protective sleeve 2, and the rubber ring 11 is inserted into the slot 2 13.

[0033] During use, when the sleeve body 1 is in an uninstalled state, in order to prevent the sleeve body 1 from being corroded or bumped, the rubber ring 11 is pulled out from the slot 12, and then the rubber ring 11 is passed through the sleeve body 1 and the protective film cover 10 is turned outward and mounted on the protective sleeve 2. Then the rubber ring 11 is pushed into the inner ring opening of the protective sleeve 2 and then inserted into the slot 2 13. At this time, the protective film cover 10 is unfolded to wrap the sleeve body 1 and the protective sleeve 2 to achieve protection for the sleeve body 1 and the protective sleeve 2.

[0034] Detailed summary of the use process of the sleeve with protective structure:

[0035] Sleeve installation and protection process

[0036] Initial assembly of the sleeve body and the protective sleeve: Place the sleeve body 1 in an appropriate position. Sleeve the protective sleeve 2 on the outside of the sleeve body 1. Since the inner ring diameter of one end of the protective sleeve 2 is larger than the inner ring diameter of one end of the sleeve body 1 and smaller than the outer ring diameter of one end of the sleeve body 1, the protective sleeve 2 can be firmly sleeved on the sleeve body 1.

[0037] Docking of the assembly groove and the assembly strip: Confirm the positional relationship between the assembly groove 3 opened on the inner ring surface of the sleeve body 1 and the protective sleeve 2 after installation. Insert the assembly strip 4 into the corresponding assembly groove 3 to ensure that the assembly strip 4 is fixed on the outer ring surface of the sleeve body 1. The assembly groove 3 and the assembly strip 4 correspond one to one, and multiple assembly grooves 3 are arranged and distributed at equal distances and sizes along the inner ring surface of the protective sleeve 2 to provide additional stability and reduce wear.

[0038] Fixing of screw and nut: Confirm the positional relationship between the through hole 5 opened at the other end of the sleeve body 1 and the screw 6 fixed at the other end of the protective sleeve 2. Pass the screw 6 through the through hole 5. Sleeve and screw the nut 7 on one end of the screw 6, and ensure that the nut 7 is tightened to prevent the protective sleeve 2 from falling off the sleeve body 1. Multiple screws 6 are arranged and distributed at equal distances and sizes along the other end of the protective sleeve 2 to provide uniform fixing force.

[0039] Storage and deployment of the protective film cover: Storage state: When the sleeve body 1 is in an uninstalled state, the protective film cover 10 is folded inside the storage groove 8 at one end of the protective sleeve 2. The rubber ring 11 is inserted into the card slot 12 at one end of the storage groove 8 to keep the protective film cover 10 in the storage state.

[0040] Unfolded state: When the sleeve is needed, pull the rubber ring 11 out of the first card slot 12. Pass the rubber ring 11 through the sleeve body 1, and then turn the protective film cover 10 outward and put it on the protective sleeve 2. After pushing the rubber ring 11 into the inner ring opening of the protective sleeve 2, insert it into the second card slot 13. At this time, the protective film cover 10 unfolds to wrap the sleeve body 1 and the protective sleeve 2 for protection.

[0041] Installation and use of the sleeve: Install the assembled sleeve (including the sleeve body 1, the protective sleeve 2, the assembly strip 4, the screw 6 and the nut 7, etc.) into the mechanical equipment or transmission system. Ensure that the sleeve is firmly installed and the protective film cover 10 (if unfolded) does not interfere with the normal operation of the sleeve.

[0042] Maintenance and replacement: During use, regularly check the wear of the shaft sleeve and protective sleeve. If the protective sleeve 2 is found to be severely worn or bumped, loosen the nut 7 according to the above process, remove the old protective sleeve 2, and replace it with a new one. Ensure that the replaced protective sleeve 2 is correctly connected with the assembly groove 3 and assembly strip 4 of the shaft sleeve body 1, and re-fix the screw 6 and nut 7.

[0043] 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 sleeve with a protective structure, comprising a sleeve body (1), characterized in that: A protective sleeve (2) is sleeved on the outer side of the shaft sleeve body (1); a receiving groove (8) is provided on the inner ring surface of one end of the protective sleeve (2); a protective film cover (10) is fixed inside the receiving groove (8); a rubber ring (11) is provided on one end of the protective film cover (10); and the rubber ring (11) is inserted into the inner ring opening of one end of the protective sleeve (2).

2. The shaft sleeve with a protective structure according to claim 1, characterized in that: The protective sleeve (2) is a circular tube structure with an "L"-shaped cross section, the inner ring diameter of one end of the protective sleeve (2) is larger than the inner ring diameter of one end of the shaft sleeve body (1), and the inner ring diameter of one end of the protective sleeve (2) is smaller than the outer ring diameter of one end of the shaft sleeve body (1).

3. The shaft sleeve with a protective structure according to claim 1, characterized in that: The inner ring surface of the shaft sleeve body (1) is provided with an assembly groove (3). After the protective sleeve (2) is sleeved on the shaft sleeve body (1), an assembly strip (4) is inserted into the assembly groove (3), and the assembly strip (4) is fixed to the outer ring surface of the shaft sleeve body (1).

4. The shaft sleeve with a protective structure according to claim 3, characterized in that: The assembling grooves (3) are provided in plurality, and the assembling grooves (3) are arranged and distributed at equal distances and in equal sizes along the inner annular surface of the protective sleeve (2), and the assembling strips (4) and the assembling grooves (3) correspond one to one.

5. The shaft sleeve with a protective structure according to claim 1, characterized in that: A screw rod (6) is fixed to the other end of the protective sleeve (2), and the screw rod (6) passes through a through hole (5). The through hole (5) is provided at the other end of the sleeve body (1), and a nut (7) is sleeved on one end of the screw rod (6) and threadedly connected.

6. The shaft sleeve with a protective structure according to claim 5, characterized in that: A plurality of screw rods (6) are provided, and the plurality of screw rods (6) are arranged and distributed at equal distances and in equal sizes along the other end of the protective sleeve (2).

7. The shaft sleeve with a protective structure according to claim 1, characterized in that: The receiving groove (8) is an annular groove, and a rubber retaining ring (9) is fixed on the inner ring surface of the receiving groove (8) on one side away from the shaft sleeve body (1), and a gap is reserved between one end of the rubber retaining ring (9) and the inner ring surface on the other side of the receiving groove (8), and the protective film cover (10) passes through the reserved gap.

8. The shaft sleeve with a protective structure according to claim 1, characterized in that: A first clamping groove (12) and a second clamping groove (13) are provided on the inner ring surface of one end of the protective sleeve (2); the first clamping groove (12) and the second clamping groove (13) are symmetrically distributed with respect to the receiving groove (8); and the first clamping groove (12) and the second clamping groove (13) are both annular grooves with arc-shaped fractures.

9. The shaft sleeve with a protective structure according to claim 8, characterized in that: When the protective film cover (10) is folded inside the storage groove (8), the rubber ring (11) is inserted into the card slot 1 (12).

10. The shaft sleeve with a protective structure according to claim 8, characterized in that: The protective film cover (10) is pulled out from the receiving groove (8), passes through the shaft sleeve body (1), and is then turned outward and sleeved on the protective sleeve (2), and the rubber ring (11) is inserted into the second card slot (13).

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