Wear-resistant shaft sleeve

Abstract

The utility model relates to the technical field of shaft sleeves, and discloses a wear-resistant shaft sleeve which comprises a shaft sleeve body, a plurality of groups of sliding columns are arranged on the outer wall of the shaft sleeve body in a penetrating manner, one ends of the plurality of groups of sliding columns are fixedly connected with connecting frames, and rollers are rotatably arranged between the other ends of the plurality of groups of sliding columns in the shaft sleeve body. According to the abrasion-resistant shaft sleeve, the abrasion-resistant shaft sleeve can be matched with rotating shafts of different sizes, so that flexibility is greatly improved, meanwhile, the rolling wheels are arranged on the inner wall of the shaft sleeve, friction can be reduced through mutual rolling between the shaft sleeve and the rotating shafts, and therefore the shaft sleeve is more durable. And dust can be prevented from entering the shaft sleeve, and influence on use of the shaft sleeve is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft sleeves, in particular to a wear-resistant shaft sleeve. Background Art

[0002] The shaft sleeve is a cylindrical mechanical part that is sleeved on the rotating shaft and is a component of the rotating shaft. Generally speaking, the shaft sleeve and the rotating shaft cooperate with each other. In order to protect the rotating shaft and increase its service life, the shaft sleeve is sleeved on the outer wall of the rotating shaft.

[0003] At present, most of the shaft sleeves are easily worn due to the friction between the shaft and the shaft sleeve when in use, and the conventional shaft sleeves are difficult to cooperate with shafts of different sizes. Therefore, those skilled in the art provide a wear-resistant shaft sleeve to solve the problems mentioned in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a wear-resistant shaft sleeve, which can cooperate with rotating shafts of different sizes, thereby greatly improving flexibility. At the same time, the shaft sleeve is provided with a roller on the inner wall, which can reduce friction by rolling with the rotating shaft, thereby making the shaft sleeve more durable, and the shaft sleeve can prevent dust from entering the shaft sleeve to avoid affecting the use of the shaft sleeve.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A wear-resistant sleeve comprises a sleeve body, wherein a plurality of sliding columns are arranged through the outer wall of the sleeve body, one end of each of the plurality of sliding columns is fixedly connected to a connecting frame, and the other ends of each of the plurality of sliding columns are located inside the sleeve body and rollers are rotatably arranged therebetween.

[0007] Through the above technical solution, under the cooperation of the sliding column and the roller, the friction between the rotating shaft and the sleeve can be greatly reduced, so that the sleeve is more wear-resistant.

[0008] Furthermore, a magnetic ring is fixedly arranged at one end of the sleeve body, and two connecting grooves are arranged on one side wall of the magnetic ring. Rotating pins are rotatably arranged on the inner walls of the two connecting grooves, and one end of the two rotating pins is fixedly connected with a semicircular magnetic block;

[0009] Through the above technical solution, the connection groove, the rotating pin and the semicircular magnetic block cooperate with each other, and under the action of the airbag, the entry of dust can be reduced.

[0010] Furthermore, a screw is threadedly passed through the upper ends of the plurality of connecting frames, and one end of the plurality of screws is rotatably connected to the shaft sleeve body;

[0011] Through the above technical solution, the sliding column can be controlled by the screw rod.

[0012] Furthermore, the inner walls of the two semicircular magnetic blocks are provided with air bags;

[0013] Through the above technical solution, a sealing effect can be achieved under the action of the airbag.

[0014] Furthermore, the semicircular magnetic block and the magnetic ring are magnetically attracted to each other;

[0015] The above technical solution makes it easy to fix the semicircular magnetic block.

[0016] The utility model has the following beneficial effects:

[0017] 1. Compared with the existing wear-resistant sleeve, the wear-resistant sleeve proposed by the utility model can be suitable for rotating shafts of different diameters through the cooperation between the sliding column, the connecting frame and the screw rod when put into use. Under the action of the roller, the practicability of the sleeve is greatly improved. At the same time, the rotation of the roller can reduce the friction between the shaft and the screw, so that the sleeve is more durable.

[0018] 2. Compared with the existing wear-resistant shaft sleeve, the wear-resistant shaft sleeve proposed by the utility model can shield the gap between the rotating shaft and the shaft sleeve to prevent dust from entering under the mutual cooperation of the connecting groove, the rotating pin, the magnetic ring and the semicircular magnetic block and the cooperation of the air bag when put into use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an axonometric diagram of a wear-resistant shaft sleeve proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a wear-resistant sleeve body of the utility model;

[0021] Figure 3 This is a side view of a wear-resistant shaft sleeve proposed by the utility model;

[0022] Figure 4 This is a schematic diagram of the roller and sliding column structure of a wear-resistant shaft sleeve proposed by the utility model;

[0023] Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0024] Legend:

[0025] 1. Bushing body; 2. Sliding column; 3. Screw; 4. Connecting frame; 5. Magnetic ring; 6. Semicircular magnetic block; 7. Roller; 8. Rotating pin; 9. Air bag; 10. Connecting groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Reference Figure 1-5 The utility model provides an embodiment: a wear-resistant sleeve, including a sleeve body 1, a plurality of sliding columns 2 are arranged through the outer wall of the sleeve body 1, one end of the plurality of sliding columns 2 is fixedly connected to a connecting frame 4, and the other ends of the plurality of sliding columns 2 are located inside the sleeve body 1 and rollers 7 are rotatably arranged therebetween. Under the mutual cooperation of the sliding columns 2 and the rollers 7, the friction between the rotating shaft and the sleeve can be greatly reduced, thereby making the sleeve more wear-resistant.

[0028] A magnetic ring 5 is fixedly provided at one end of the sleeve body 1, and two connecting grooves 10 are provided on one side wall of the magnetic ring 5. The inner walls of the two connecting grooves 10 are rotatably provided with rotating pins 8. One end of the two rotating pins 8 is fixedly connected with a semicircular magnetic block 6. Through the cooperation between the connecting grooves 10, the rotating pins 8 and the semicircular magnetic blocks 6, under the action of the airbag 9, the entry of dust can be reduced. The upper ends of multiple connecting frames 4 are all threaded with screws 3, and one end of multiple screws 3 is rotatably connected to the sleeve body 1. The sliding column 2 can be controlled by the screw 3. The inner walls of the two semicircular magnetic blocks 6 are provided with airbags 9. Under the action of the airbags 9, a sealing effect can be achieved. The semicircular magnetic blocks 6 and the magnetic ring 5 are magnetically attracted to each other, which is convenient for fixing the semicircular magnetic blocks 6.

[0029] Working principle: When the utility model is in use, the shaft sleeve is firstly sleeved on the rotating shaft, and then the screw 3 is rotated to make the sliding column 2 move toward the middle of the shaft sleeve body 1. Under the action of the roller 7, it can match the rotating shafts of different diameters. Then, the rotating pin 8 and the semicircular magnetic block 6 are matched. Under the action of the magnetic ring 5, the semicircular magnetic block 6 can be fixed. Then, under the action of the airbag 9, it can prevent dust from entering the shaft sleeve.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wear-resistant sleeve, comprising a sleeve body (1), characterized in that: A plurality of groups of sliding columns (2) are arranged through the outer wall of the sleeve body (1); one end of each of the plurality of sliding columns (2) is fixedly connected to a connecting frame (4); and the other ends of each of the plurality of sliding columns (2) are located inside the sleeve body (1) and are rotatably provided with rollers (7).

2. A wear-resistant sleeve according to claim 1, characterized in that: A magnetic ring (5) is fixedly arranged at one end of the shaft sleeve body (1), and two connecting grooves (10) are arranged on one side wall of the magnetic ring (5). Rotating pins (8) are rotatably arranged on the inner walls of the two connecting grooves (10), and one end of the two rotating pins (8) is fixedly connected to a semicircular magnetic block (6).

3. The wear-resistant sleeve according to claim 1, characterized in that: The upper ends of the plurality of connecting frames (4) are all threadedly penetrated by a screw rod (3), and one end of the plurality of screw rods (3) is rotatably connected to the shaft sleeve body (1).

4. A wear-resistant sleeve according to claim 2, characterized in that: The inner walls of the two semicircular magnetic blocks (6) are both provided with air bags (9).

5. The wear-resistant sleeve according to claim 2, characterized in that: The semicircular magnetic block (6) and the magnetic ring (5) are magnetically attracted to each other.

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