Wear-resistant rotating shaft

Abstract

The utility model provides an anti-wear rotating shaft, which relates to the technical field of rotating shafts, and comprises two first shaft bodies, an adjusting device is arranged between the two first shaft bodies, the two adjusting devices comprise round rods, the outer surfaces of the round rods are connected with the inner walls of the first shaft bodies in a sliding manner, and the outer surfaces of the round rods are connected with the inner walls of the first shaft bodies in a sliding manner. One end of each first shaft body is provided with a first threaded rod, and one end of each first shaft body is provided with a second threaded rod, and one end of each first shaft body is provided with a first threaded rod and a second threaded rod. The first threaded rod and the second threaded rod can drive the first shaft bodies to slide on the outer surface of the round rod when stretching out and drawing back, then the length of the rotating shaft can be conveniently adjusted according to the actual requirements of workpieces, the rotating shaft can be matched with different workpieces, the rotating shaft can be normally installed, and then the practicability of the rotating shaft is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotating shafts, in particular to an anti-wear rotating shaft. Background Technique

[0002] A rotating shaft is a mechanical part that supports a rotating part and rotates with it to transmit motion, torque or bending moment. Generally, it is in the shape of a metal round rod, and each section can have a different diameter. The parts that rotate in the machine are installed on the shaft. Existing rotating shafts are mostly made of cobalt-based alloys, which have strong wear resistance and corrosion resistance, thus greatly improving the service life and reliability of the rotating shaft.

[0003] The overall length of the rotating shaft is fixed. However, the lengths of the rotating shafts required by different workpieces are different. In actual use, there may be a problem that the length of the rotating shaft is not suitable for the requirements of the workpiece, resulting in the rotating shaft being unable to be installed normally, which will reduce the practicality of the rotating shaft. Content of the Utility Model

[0004] The utility model provides an anti-wear rotating shaft to solve the problem that the lengths of the rotating shafts required by different workpieces are different, which may cause the problem that the length of the rotating shaft is not suitable for the requirements of the workpiece, resulting in the rotating shaft being unable to be installed normally, and further reducing the practicality of the rotating shaft.

[0005] To achieve the above object, the utility model adopts the following technical scheme: an anti-wear rotating shaft, including two first shaft bodies, an adjusting device is arranged between the two first shaft bodies, the two adjusting devices include round rods, the outer surfaces of the round rods are slidably connected to the inner walls of the first shaft bodies, one end of each of the two first shaft bodies is respectively provided with a first threaded rod and a second threaded rod, a threaded cylinder is threadedly connected to the outer surfaces of the first threaded rod and the second threaded rod, one end of each of the first shaft body and the second shaft body away from each other is fixedly connected with a second shaft body, and a limiting device is arranged on the outer surface of each of the two second shaft bodies.

[0006] The effects achieved by the above components are as follows: By setting the first threaded rod and the second threaded rod, rotating the threaded cylinder, the threaded cylinder will drive the first threaded rod and the second threaded rod to expand and contract on the inner wall of the threaded cylinder. When the first threaded rod and the second threaded rod expand and contract, they will respectively drive a first shaft body to slide on the outer surface of the round rod, so as to facilitate adjusting the length of the rotating shaft according to the actual needs of the workpiece, making the rotating shaft adaptable to different workpieces, enabling the rotating shaft to be installed normally, and further improving the practicality of the rotating shaft.

[0007] Preferably, the first threaded rod and the second threaded rod have the same thread size and opposite directions, and the remote ends of the first threaded rod and the second threaded rod are respectively fixedly connected to one ends of two first shafts.

[0008] The effects achieved by the above components are as follows: By setting the first threaded rod and the second threaded rod with the same thread size and opposite directions, when the threaded cylinder rotates, it can drive the first threaded rod and the second threaded rod to perform synchronous telescoping in opposite directions on the inner wall of the threaded cylinder, thereby facilitating the rapid adjustment of the distance between the two first shafts.

[0009] Preferably, a rubber sleeve is fixedly connected to the outer surface of the threaded cylinder, and grooves are uniformly formed on the outer surface of the rubber sleeve.

[0010] The effects achieved by the above components are as follows: By setting the rubber sleeve with grooves, the friction on the outer surface of the threaded cylinder can be reduced, and the anti-slip effect is achieved when the threaded cylinder is rotated.

[0011] Preferably, a slide bar is fixedly connected to the outer surface of the round rod, and sliding grooves are formed on the inner walls of both first shafts. The outer surface of the slide bar is slidably connected to the inner walls of the two sliding grooves.

[0012] The effects achieved by the above components are as follows: By setting the slide bar and the sliding grooves, when the round rod slides on the inner walls of the two first shafts, it will drive the slide bar to slide synchronously on the inner walls of the sliding grooves, which can limit the two first shafts and make the movement of the two first shafts more stable.

[0013] Preferably, reinforcing blocks are symmetrically and fixedly connected to one end of the first shaft. The cross-section of the reinforcing block in the vertical direction is triangular, and one side of the reinforcing block abuts against the outer surface of the round rod.

[0014] The effects achieved by the above components are as follows: By setting the triangular reinforcing blocks, the stability of the triangle is used to assist in supporting between the round rod and the two shafts, thereby improving the stability of the overall structure.

[0015] Preferably, the limiting device includes two stoppers, and the outer surface of the second shaft is inserted into the inner walls of the stoppers.

[0016] The effects achieved by the above components are as follows: By setting the stoppers, the bearings installed on the outer surface of the second shaft can be limited, which is beneficial to preventing the problem that the rotating shaft cannot rotate normally due to the displacement of the bearings on the second shaft.

[0017] Preferably, auxiliary threads are formed on the outer surface of one end of the second shaft, and a rotating block is threadedly connected to the outer surface of the second shaft. One side of the rotating block abuts against one side of the stopper.

[0018] The effects achieved by the above components are as follows: By setting the rotating block, under the action of the auxiliary thread, the rotating block can block the stopper, thereby preventing the stopper from shifting.

[0019] Preferably, a gasket is provided on the other side of the stopper, and one side of the gasket abuts against one side of the stopper.

[0020] The effects achieved by the above components are as follows: By setting the gasket, it can replace one side of the stopper to contact the bearing and prevent the rotating block from loosening easily.

[0021] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0022] In the present utility model, by setting the first threaded rod and the second threaded rod, the threaded cylinder can drive the first threaded rod and the second threaded rod to expand and contract on the inner wall of the threaded cylinder. When the first threaded rod and the second threaded rod expand and contract, they will respectively drive a first shaft body to slide on the outer surface of the round rod, thereby facilitating the adjustment of the length of the rotating shaft according to the needs of the actual workpiece, enabling the rotating shaft to be adapted to different workpieces, enabling the rotating shaft to be normally installed, and thus improving the practicality of the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional structural schematic diagram of the main body of the present utility model;

[0024] Figure 2 is a three-dimensional structural schematic diagram of the first shaft body of the present utility model;

[0025] Figure 3 For the present utility model Figure 2 is an enlarged structural schematic diagram of part A;

[0026] Figure 4 For the present utility model Figure 2 is an enlarged structural schematic diagram of part B.

[0027] Legend: 1. First shaft body; 2. Second shaft body; 3. Third shaft body; 4. Adjusting device; 41. Round rod; 42. First threaded rod; 43. Second threaded rod; 44. Threaded cylinder; 45. Rubber sleeve; 46. Slide bar; 47. Slide groove; 48. Reinforcing block; 5. Limiting device; 51. Stopper; 52. Auxiliary thread; 53. Rotating block; 54. Gasket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Example 1, refer to Figures 1-3As shown, this embodiment discloses an anti-wear rotating shaft, which includes two first shaft bodies 1. An adjusting device 4 is arranged between the two first shaft bodies 1. The two adjusting devices 4 include round rods 41. The outer surfaces of the round rods 41 are slidably connected to the inner walls of the first shaft bodies 1. One end of each of the two first shaft bodies 1 is respectively provided with a first threaded rod 42 and a second threaded rod 43. A threaded cylinder 44 is threadedly connected to the outer surfaces of the first threaded rod 42 and the second threaded rod 43. One end of each of the first shaft body 1 and the second shaft body 2 that are away from each other is fixedly connected to a second shaft body 2. One end of each of the two second shaft bodies 2 that are away from each other is fixedly connected to a third shaft body 3. A limiting device 5 is arranged on the outer surface of the second shaft body 2. By setting the first threaded rod 42 and the second threaded rod 43, when the threaded cylinder 44 is rotated, the threaded cylinder 44 will drive the first threaded rod 42 and the second threaded rod 43 to expand and contract on the inner wall of the threaded cylinder 44. When the first threaded rod 42 and the second threaded rod 43 expand and contract, they will respectively drive a first shaft body 1 to slide on the outer surface of the round rod 41, thereby facilitating the adjustment of the length of the rotating shaft according to the needs of the actual workpiece, enabling the rotating shaft to be adapted to different workpieces, enabling the rotating shaft to be normally installed, and thus improving the practicality of the rotating shaft.

[0029] Referring to Figure 2 and Figure 3 As shown, the thread sizes of the first threaded rod 42 and the second threaded rod 43 are the same and the directions are opposite. The ends of the first threaded rod 42 and the second threaded rod 43 that are away from each other are respectively fixedly connected to one end of the two first shaft bodies 1. By setting the first threaded rod 42 and the second threaded rod 43 with the same thread size and opposite directions, when the threaded cylinder 44 rotates, it can drive the first threaded rod 42 and the second threaded rod 43 to expand and contract synchronously in opposite directions on the inner wall of the threaded cylinder 44, thereby facilitating the rapid adjustment of the distance between the two first shaft bodies 1; a rubber sleeve 45 is fixedly connected to the outer surface of the threaded cylinder 44, and grooves are evenly formed on the outer surface of the rubber sleeve 45. By setting the rubber sleeve 45 with grooves, the friction on the outer surface of the threaded cylinder 44 can be reduced, so that there is an anti-slip effect when the threaded cylinder 44 is rotated.

[0030] Referring to Figure 2 and Figure 3As shown, a slide bar 46 is fixedly connected to the outer surface of the round bar 41. Chute grooves 47 are formed in the inner walls of both first shafts 1. The outer surface of the slide bar 46 is slidably connected to the inner walls of both chute grooves 47. By providing the slide bar 46 and the chute grooves 47, when the round bar 41 slides within the inner walls of the two first shafts 1, it will drive the slide bar 46 to slide synchronously within the inner walls of the chute grooves 47, which can limit the two first shafts 1 and make the movement of the two first shafts 1 more stable. Reinforcing blocks 48 are symmetrically and fixedly connected to one end of the first shaft 1. The cross-section of the reinforcing block 48 in the vertical direction is triangular. One side of the reinforcing block 48 abuts against the outer surface of the round bar 41. By providing the triangular reinforcing blocks 48, the stability of the triangle is utilized to provide auxiliary support between the round bar 41 and the two first shafts 1, thereby enhancing the stability of the overall structure.

[0031] Refer to Figure 2 and Figure 4 As shown, the limiting device 5 includes two stoppers 51. The outer surface of the second shaft 2 is inserted into the inner walls of the stoppers 51. By providing the stoppers 51, it can limit the bearings installed on the outer surface of the second shaft 2, which helps prevent the problem that the bearings shift on the second shaft 2 and cause the rotating shaft to fail to rotate normally.

[0032] Refer to Figure 2 and Figure 4 As shown, an auxiliary thread 52 is formed on the outer surface of one end of the second shaft 2. A rotating block 53 is threadedly connected to the outer surface of the second shaft 2. One side of the rotating block 53 abuts against one side of the stopper 51. By providing the rotating block 53, under the action of the auxiliary thread 52, the rotating block 53 can block the stopper 51, thereby preventing the stopper 51 from shifting. A gasket 54 is provided on the other side of the stopper 51. One side of the gasket 54 abuts against one side of the stopper 51. By providing the gasket 54, it can replace one side of the stopper 51 to contact the bearing and prevent the rotating block 53 from loosening easily.

[0033] Working principle: When it is necessary to adjust the length of the rotating shaft, hold the rubber sleeve 45 and rotate the threaded cylinder 44. The rotation of the threaded cylinder 44 will drive the first threaded rod 42 and the second threaded rod 43 to perform synchronous telescoping in opposite directions on the inner wall of the threaded cylinder 44. When the first threaded rod 42 and the second threaded rod 43 telescope, they will respectively drive a first shaft body 1 to slide on the outer surface of the round rod 41, and at the same time drive the slide bar 46 to slide synchronously on the inner wall of the chute 47, which can play a role in limiting the two first shaft bodies 1, making the two first shaft bodies 1 move more stably until the two first shaft bodies 1 are far away from or close to an appropriate distance. The triangular reinforcing block 48 utilizes the stability of the triangle to assist in supporting between the round rod 41 and the two shaft bodies, thereby improving the stability of the overall structure; when it is necessary to limit the bearing, rotate the rotating block 53 so that one side of the gasket 54 abuts against the bearing, and both sides of the stop block 51 abut against the gasket 54 and the rotating block 53 respectively.

Claims

1. A wear-resistant rotating shaft, comprising two first shaft bodies (1), characterized in that: An adjusting device (4) is provided between the two first shaft bodies (1), and the two adjusting devices (4) include a round rod (41), the outer surface of which is slidably connected to the inner wall of the first shaft body (1), one end of the two first shaft bodies (1) is respectively provided with a first threaded rod (42) and a second threaded rod (43), the outer surfaces of the first threaded rod (42) and the second threaded rod (43) are threadedly connected with a threaded cylinder (44), the ends of the first shaft body (1) and the second shaft body (2) away from each other are fixedly connected to the second shaft body (2), the ends of the two second shaft bodies (2) away from each other are fixedly connected to the third shaft body (3), and the outer surface of the second shaft body (2) is provided with a limiting device (5).

2. The wear-resistant rotating shaft according to claim 1, characterized in that: The threads of the first threaded rod (42) and the second threaded rod (43) are of the same size and in opposite directions; the ends of the first threaded rod (42) and the second threaded rod (43) that are away from each other are fixedly connected to one end of the two first shaft bodies (1) respectively.

3. The wear-resistant rotating shaft according to claim 1, characterized in that: A rubber sleeve (45) is fixedly connected to the outer surface of the threaded cylinder (44), and grooves are evenly formed on the outer surface of the rubber sleeve (45).

4. The wear-resistant rotating shaft according to claim 1, characterized in that: The outer surface of the round rod (41) is fixedly connected with a slide bar (46), the inner walls of the two first shaft bodies (1) are provided with slide grooves (47), and the outer surface of the slide bar (46) is slidably connected with the inner walls of the two slide grooves (47).

5. The wear-resistant rotating shaft according to claim 1, characterized in that: A reinforcing block (48) is symmetrically fixedly connected to one end of the first shaft (1); the vertical cross section of the reinforcing block (48) is triangular, and one side of the reinforcing block (48) abuts against the outer surface of the round rod (41).

6. The wear-resistant rotating shaft according to claim 1, characterized in that: The limiting device (5) comprises two stoppers (51), and the outer surface of the second shaft body (2) is inserted into the inner wall of the stoppers (51).

7. The wear-resistant rotating shaft according to claim 6, characterized in that: An auxiliary thread (52) is formed on the outer surface of one end of the second shaft body (2), and a rotating block (53) is threadedly connected to the outer surface of the second shaft body (2), and one side of the rotating block (53) abuts against one side of the stopper (51).

8. The wear-resistant rotating shaft according to claim 6, characterized in that: A gasket (54) is provided on the other side of the stopper (51), and one side of the gasket (54) abuts against one side of the stopper (51).

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