Radial expansion sleeve device

Abstract

The utility model relates to the technical field of radial expansion sleeve devices, and discloses a radial expansion sleeve device which comprises a radial expansion sleeve body, a first locking sleeve is arranged on the outer side of the radial expansion sleeve body, and a second locking sleeve is arranged on the outer side of the radial expansion sleeve body. The device is provided with the positioning installation mechanism, during installation, the radial expansion sleeve body is arranged on the outer side of the corresponding axis in a sleeving mode, installation and fixation can be conveniently completed, during assembly, the positioning process is simple and convenient, a user can conduct visual operation easily, strong radial expansion force can be generated, and the assembly process is simple and direct; by arranging the reinforcing mechanism, after the corresponding faces of the second positioning block and the first positioning block are attached, the guide sliding block can be shifted to move, fixing between the reinforcing connecting pad and the fixing threaded column is conveniently completed, the connecting part between the first mounting block and the second mounting block can be reinforced, and it is ensured that the connecting structure is stable.

Description

Technical Field

[0001] This utility model relates to the technical field of radial expansion sleeve devices, specifically a radial expansion sleeve device. Background Technology

[0002] A radial expansion sleeve is a mechanical fastening element used to achieve high-precision shaft-hub connections. Its core structure is a tapered, thin-walled sleeve that expands uniformly radially by hydraulic or mechanical means, creating a strong and uniform interference fit between the inner wall of the sleeve and the shaft, and between the outer wall and the hub bore, thereby transmitting torque and axial force.

[0003] For example, Chinese Patent Application No. 202322034623.8 discloses a radial expansion sleeve device, relating to the field of roll material locking technology. This radial expansion sleeve device aims to solve the problem that in the existing roll material winding process, due to the varying gap sizes between different types of film rolls and the rotating shaft, the film roll can easily become loose between itself and the shaft, preventing it from rotating synchronously and affecting the roll material winding. The radial expansion sleeve device includes radial expansion sleeves, a film roll, and a shaft. The film roll is sleeved on the shaft, and two radial expansion sleeves are respectively positioned on both sides of the gap between the film roll and the shaft, filling the gap and enabling the film roll to rotate synchronously with the shaft, thus facilitating the roll material winding.

[0004] However, the aforementioned radial expansion sleeve device is cumbersome to assemble during use, making it difficult to quickly complete positioning and installation. Therefore, those skilled in the art have provided a radial expansion sleeve device to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to provide a radial expansion sleeve device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A radial expansion sleeve device includes a radial expansion sleeve body, a first locking sleeve is provided on the outer side of the radial expansion sleeve body, a second locking sleeve is provided on the outer side of the radial expansion sleeve body, a positioning and mounting mechanism is provided on the outer side of the first locking sleeve and the second locking sleeve, and a reinforcing mechanism is installed on the outer side of the positioning and mounting mechanism.

[0008] The positioning and installation mechanism includes a first mounting block, a first positioning block fixed to the outer side of the first mounting block, a second mounting block fixed to the outer side of the first locking sleeve, a second positioning block fixed to the outer side of the second mounting block, a positioning semi-threaded post installed on the outer side of the first positioning block, and a connecting semi-threaded post provided on the outer side of the second positioning block. The connecting semi-threaded post and the positioning semi-threaded post are threaded together with a connecting nut on their outer sides.

[0009] As a further embodiment of this utility model: the reinforcing mechanism includes a guide sliding block, a reinforcing connecting pad is fixed on one side of the guide sliding block, an anti-slip groove is provided inside the second positioning block, a fixing threaded post is fixed on the outside of the first positioning block, an installation washer is movably sleeved on the outside of the fixing threaded post, a metal nut is threadedly connected to the outside of the fixing threaded post, and a limit connecting groove is provided inside the reinforcing connecting pad.

[0010] As a further embodiment of this utility model: the reinforcing connecting pad is movably sleeved on the outside of the fixed threaded column, and the second positioning block is slidably connected to the guide sliding block through the anti-slip groove.

[0011] As a further improvement of this utility model: the size of the limiting connecting groove is adapted to the size of the fixed threaded column, and the bottom surface of the reinforcing connecting pad is in contact with the first positioning block.

[0012] As a further embodiment of this utility model: the corresponding surfaces of the first mounting block and the second mounting block are fitted together, and the corresponding surfaces of the first positioning block and the second positioning block are fitted together.

[0013] As a further improvement of this utility model: the radius of the positioning semi-threaded post is equal to the radius of the connecting nut, and the outer side of the connecting nut is provided with anti-slip texture.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This device is equipped with a positioning and installation mechanism. During installation, the radial expansion sleeve body is placed on the outside of the corresponding shaft, which can easily complete the installation and fixation. Moreover, the positioning process during assembly is simple and easy to operate by visual inspection. It can generate a strong radial expansion force and the assembly process is simple and direct.

[0016] 2. With the reinforcement mechanism, after the corresponding surfaces of the second positioning block and the first positioning block are in contact, the guide sliding block can be moved to easily fix the reinforcement connecting pad and the fixed threaded column. This can reinforce the connection between the first mounting block and the second mounting block and ensure the stability of the connection structure. Attached Figure Description

[0017] Figure 1A perspective view of a radial expansion sleeve device;

[0018] Figure 2 This is a schematic diagram of the positioning and mounting mechanism in a radial expansion sleeve device.

[0019] Figure 3 This is a schematic diagram of the outer structure of the first mounting block in a radial expansion sleeve device;

[0020] Figure 4 for Figure 3 A magnified diagram of region A.

[0021] In the figure: 1. Radial expansion sleeve body; 2. First locking sleeve; 3. Second locking sleeve; 4. Positioning and mounting mechanism; 41. First mounting block; 42. First positioning block; 43. Second mounting block; 44. Second positioning block; 45. Positioning semi-threaded post; 46. Connecting semi-threaded post; 47. Connecting nut; 5. Reinforcing mechanism; 51. Guide sliding block; 52. Reinforcing connecting pad; 53. Anti-slip groove; 54. Fixed threaded post; 55. Mounting washer; 56. Metal nut; 57. Limiting connecting groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 In this embodiment of the utility model, a radial expansion sleeve device includes a radial expansion sleeve body 1, a first locking sleeve 2 is provided on the outer side of the radial expansion sleeve body 1, a second locking sleeve 3 is provided on the outer side of the radial expansion sleeve body 1, a positioning and installation mechanism 4 is provided on the outer side of the first locking sleeve 2 and the second locking sleeve 3, and a reinforcing mechanism 5 is installed on the outer side of the positioning and installation mechanism 4.

[0024] The positioning and mounting mechanism 4 includes a first mounting block 41, a first positioning block 42 fixed to the outer side of the first mounting block 41, a second mounting block 43 fixed to the outer side of the first locking sleeve 2, a second positioning block 44 fixed to the outer side of the second mounting block 43, a positioning semi-threaded post 45 mounted on the outer side of the first positioning block 42, and a connecting semi-threaded post 46 provided on the outer side of the second positioning block 44. A connecting nut 47 is threadedly connected to the outer sides of the connecting semi-threaded post 46 and the positioning semi-threaded post 45. The corresponding surfaces of the first mounting block 41 and the second mounting block 43 are in contact with each other, as are the corresponding surfaces of the first positioning block 42 and the second positioning block 44. The radius of the positioning semi-threaded post 45 is equal to the radius of the connecting nut 47. An anti-slip surface is provided on the outer side of the connecting nut 47. During installation, the radial expansion sleeve body 1 is fitted onto the outer side of the corresponding shaft, and then the first locking sleeve 2 and the second locking sleeve 3 are fitted onto the outer side of the radial expansion sleeve body 1. At this time, the corresponding surfaces of the first locking sleeve 2 and the second locking sleeve 3 are in contact, and the corresponding surfaces of the first positioning block 42 and the second positioning block 44 are in contact. The positioning half-threaded post 45 on the outer side of the first positioning block 42 and the connecting half-threaded post 46 on the outer side of the second positioning block 44 form a threaded post. The connecting nut 47 is used to thread the positioning half-threaded post 45 and the connecting half-threaded post 46, thereby facilitating installation and fixing. Moreover, the positioning process during assembly is simple and easy for the user to operate visually. It can generate a strong radial expansion force, and the assembly process is simple and direct.

[0025] In one embodiment of this utility model, the reinforcing mechanism 5 includes a guide sliding block 51, a reinforcing connecting pad 52 fixed on one side of the guide sliding block 51, an anti-slip groove 53 inside the second positioning block 44, a fixing threaded post 54 fixed on the outside of the first positioning block 42, an installation washer 55 movably sleeved on the outside of the fixing threaded post 54, a metal nut 56 threadedly connected to the outside of the fixing threaded post 54, a limiting connecting groove 57 inside the reinforcing connecting pad 52, the reinforcing connecting pad 52 movably sleeved on the outside of the fixing threaded post 54, the guide sliding block 51 slidably connected to the second positioning block 44 through the anti-slip groove 53, the size of the limiting connecting groove 57 is adapted to the size of the fixing threaded post 54, and the bottom surface of the reinforcing connecting pad 52 is in contact with the first positioning block 42.

[0026] The working principle of this utility model is as follows: This device is equipped with a positioning and installation mechanism 4. During installation, the radial expansion sleeve body 1 is fitted onto the outer side of the corresponding shaft, and then the first locking sleeve 2 and the second locking sleeve 3 are fitted onto the outer side of the radial expansion sleeve body 1. At this time, the corresponding surfaces of the first locking sleeve 2 and the second locking sleeve 3 are in contact, and the corresponding surfaces of the first positioning block 42 and the second positioning block 44 are in contact. The positioning half-threaded post 45 on the outer side of the first positioning block 42 and the connecting half-threaded post 46 on the outer side of the second positioning block 44 form a threaded post. The connecting nut 47 is used to thread the positioning half-threaded post 45 and the connecting half-threaded post 46, thereby conveniently completing the installation and fixing. Moreover, the positioning process during assembly is simple and easy for the user to operate visually, which can produce a powerful The radial expansion force makes the assembly process simple and direct. With the reinforcement mechanism 5, when the corresponding surfaces of the second positioning block 44 and the first positioning block 42 are in contact, the guide sliding block 51 can be moved to allow the reinforcement connecting pad 52 on one side of the guide sliding block 51 to be movably sleeved on the outside of the fixed threaded post 54. At this time, the bottom surface of the reinforcement connecting pad 52 is in contact with the first mounting block 41. Then, the mounting pad 55 is movably sleeved on the outside of the fixed threaded post 54, and the metal nut 56 is threadedly connected to the fixed threaded post 54, so that the bottom surface of the metal nut 56 presses the mounting pad 55, which conveniently completes the fixation between the reinforcement connecting pad 52 and the fixed threaded post 54. The connection between the first mounting block 41 and the second mounting block 43 can be reinforced to ensure the stability of the connection structure.

[0027] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A radial expansion sleeve device, comprising a radial expansion sleeve body (1), characterized in that, A first locking sleeve (2) is provided on the outer side of the radial expansion sleeve body (1), a second locking sleeve (3) is provided on the outer side of the radial expansion sleeve body (1), a positioning and installation mechanism (4) is provided on the outer side of the first locking sleeve (2) and the second locking sleeve (3), and a reinforcement mechanism (5) is installed on the outer side of the positioning and installation mechanism (4). The positioning and mounting mechanism (4) includes a first mounting block (41), a first positioning block (42) is fixed to the outside of the first mounting block (41), a second mounting block (43) is fixed to the outside of the first locking sleeve (2), a second positioning block (44) is fixed to the outside of the second mounting block (43), a positioning semi-threaded post (45) is installed on the outside of the first positioning block (42), a connecting semi-threaded post (46) is provided on the outside of the second positioning block (44), and a connecting nut (47) is threadedly connected to the outside of the connecting semi-threaded post (46) and the positioning semi-threaded post (45).

2. The radial expansion sleeve device according to claim 1, characterized in that, The reinforcement mechanism (5) includes a guide sliding block (51), a reinforcement connecting pad (52) is fixed on one side of the guide sliding block (51), an anti-slip groove (53) is provided inside the second positioning block (44), a fixing threaded post (54) is fixed on the outside of the first positioning block (42), an installation washer (55) is movably sleeved on the outside of the fixing threaded post (54), a metal nut (56) is threaded on the outside of the fixing threaded post (54), and a limit connecting groove (57) is provided inside the reinforcement connecting pad (52).

3. The radial expansion sleeve device according to claim 2, characterized in that, The reinforcing connecting pad (52) is movably sleeved on the outside of the fixed threaded post (54), and the second positioning block (44) is slidably connected to the guide sliding block (51) through the anti-slip groove (53).

4. The radial expansion sleeve device according to claim 2, characterized in that, The dimensions of the limiting connecting groove (57) are adapted to the dimensions of the fixed threaded column (54), and the bottom surface of the reinforcing connecting pad (52) is in contact with the first positioning block (42).

5. The radial expansion sleeve device according to claim 1, characterized in that, The first mounting block (41) and the second mounting block (43) are in contact with each other, and the first positioning block (42) and the second positioning block (44) are in contact with each other.

6. The radial expansion sleeve device according to claim 1, characterized in that, The radius of the positioning semi-threaded post (45) is equal to the radius of the connecting nut (47), and the outer side of the connecting nut (47) is provided with anti-slip texture.

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