Eccentric fastening device
By designing an eccentric fastening device including lubricating functional blocks and slope fastening blocks, the problems of laborious disassembly, short service life and risk of falling off in the prior art are solved, and the effects of simple structure, reliable, convenient disassembly and low cost are achieved.
Patent Information
- Application Number
- CN202411862091.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-04-25
AI Technical Summary
When sealing the vacuum dewatering tank, the existing eccentric fastening device adopts interference fit or screw fixing, which leads to time-consuming disassembly and assembly, short service life, and risks of vibration and shedding.
An eccentric fastening device including lubricating functional blocks and slope fastening blocks is designed. By setting the hollow screw and lock nut, the oblique structure generates dislocation and preloading forces to achieve a stable fixed state.
The device is simple and reliable in structure, easy to disassemble and assemble, avoids the risk of shedding, reduces maintenance needs, and has low production costs.
Smart Images
Figure CN119877312A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of eccentric fasteners, and in particular to an eccentric fastening device. Background Art
[0002] Paper is quite common in our production and life, and its application range is also quite wide. Papermaking machines are used in the production process of paper, and vacuum dehydration in papermaking machines is an indispensable process. Generally, a vacuum dehydration box is used to dehydrate the pulp. When the vacuum dehydration box is in use, an eccentric fastening device is required for edge sealing. The vacuum system needs to be closed and lubricated with water to prevent the net from being worn. When the eccentric fastening device in the prior art solution seals the edge of the vacuum dehydration box, interference fit or screw fixing is usually used. This method is laborious and time-consuming to disassemble and assemble, and has a short service life. At the same time, there is vibration during use, and there is a safety risk of falling off. Summary of the invention
[0003] The embodiment of the present application provides an eccentric fastening device to solve the technical problem that the eccentric fastening device in the prior art solution usually adopts interference fit or screw fixing method to seal the edge of the vacuum dehydration box, and this method is laborious and time-consuming to disassemble and assemble, has a short service life, and there is vibration during use, and there is a risk of falling off.
[0004] The technical solution adopted in the embodiment of the present application is as follows:
[0005] An eccentric fastening device comprises a lubrication function block and a slope fastening block; the contact surfaces of the lubrication function block and the slope fastening block are both arranged as inclined structures; a threaded hole is provided on the lubrication function block, a hollow screw is threadedly connected in the threaded hole; a locking nut is threadedly connected at one end of the hollow screw; a circular through hole adapted to the hollow screw is provided on the slope fastening block; the slope fastening block is sleeved on the hollow screw through the circular through hole; when the locking nut is locked on the hollow screw and abuts against the slope fastening block, the lubrication function block and the slope fastening block will be misaligned due to the inclined structure.
[0006] A further technical solution is that the lubrication function block and the slope fastening block are both made of polymer materials.
[0007] A further technical solution is: the inner diameter of the circular perforation is 4-6 mm larger than that of the hollow screw rod.
[0008] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
[0009] 1. Due to the use of the lubrication function block, the slope fastening block, the hollow screw and the locking nut, and the threaded hole adapted to the hollow screw is provided in the lubrication function block, the hollow screw can be detachably threadedly connected to the lubrication function block, and after the slope fastening block is sleeved on the hollow screw, it can be locked and fixed by the locking nut. The structure of the whole device is simple, and it is convenient for the staff to disassemble and install it. Since the slope fastening block is sleeved on the hollow screw through the circular perforation, and then the locking nut is locked on the hollow screw, and the locking nut is against the slope fastening block, the lubrication function block and the slope fastening block will be misaligned due to the inclined surface structure, and a pre-tightening force will be generated after the misalignment, thereby forming a firmly fixed state. The whole eccentric fastening device has a simple and reliable structure, no additional spare parts, and no risk of falling off. At the same time, it is maintenance-free, easy to disassemble and assemble, and has a low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the overall structure of an eccentric fastening device in an embodiment of the present invention.
[0011] Figure 2 It is a partial structural schematic diagram for reflecting the connection relationship between the lubrication function block and the hollow screw rod in an embodiment of the present invention.
[0012] In the figure: 1. Lubrication function block; 2. Slope fastening block; 3. Hollow screw rod; 4. Locking nut. DETAILED DESCRIPTION
[0013] The embodiment of the present application provides an eccentric fastening device to solve the technical problem that the eccentric fastening device in the prior art solution usually adopts interference fit or screw fixing method to seal the edge of the vacuum dehydration box, and this method is laborious and time-consuming to disassemble and assemble, has a short service life, and there is vibration during use, and there is a risk of falling off.
[0014] The technical solution in the embodiment of the present application is to solve the above problems, and the overall idea is as follows:
[0015] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0016] An eccentric fastening device, such as Figure 1 and Figure 2As shown, it includes a lubrication function block 1 and a slope fastening block 2. The contact surfaces of the lubrication function block 1 and the slope fastening block 2 are both set to be inclined structures. A threaded hole is provided on the lubrication function block 1, and a hollow screw 3 is threadedly connected in the threaded hole. A locking nut 4 is threadedly connected to one end of the hollow screw 3. A circular through hole adapted to the hollow screw 3 is provided on the slope fastening block 2. The slope fastening block 2 is sleeved on the hollow screw 3 through the circular through hole. When the locking nut 4 is locked on the hollow screw 3 and abuts against the slope fastening block 2, the lubrication function block 1 and the slope fastening block 2 will be misaligned due to the inclined structure.
[0017] The lubrication function block 1 and the ramp fastening block 2 are both made of polymer materials.
[0018] The inner diameter of the circular perforation is 4-6 mm larger than that of the hollow screw rod 3 .
[0019] Due to the arrangement of the lubrication function block 1, the ramp fastening block 2, the hollow screw 3 and the locking nut 4, and because the lubrication function block 1 is provided with a threaded hole adapted to the hollow screw 3, the hollow screw 3 can be detachably threadedly connected to the lubrication function block 1, and after the ramp fastening block 2 is sleeved on the hollow screw 3, it can be locked and fixed by the locking nut 4, and the whole device has a simple structure, which is convenient for the staff to disassemble and install it. Since the ramp fastening block 2 is sleeved on the hollow screw 3 through a circular perforation, and then the locking nut 4 is locked on the hollow screw 3, and the locking nut 4 is abutted against the ramp fastening block 2, at this time, the lubrication function block 1 and the ramp fastening block 2 will be misaligned due to the inclined surface structure, and a pre-tightening force will be generated after the misalignment, thereby forming a firmly fixed state, and the whole eccentric fastening device has a simple and reliable structure, no additional spare parts, and thus no risk of falling off, and is maintenance-free, easy to disassemble and assemble, and has a low manufacturing cost.
[0020] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.
[0021] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims
1. An eccentric fastening device, characterized in that: The invention comprises a lubrication function block (1) and a slope fastening block (2); the contact surfaces of the lubrication function block (1) and the slope fastening block (2) are both arranged as inclined surface structures; the lubrication function block (1) is provided with a threaded hole, in which a hollow screw rod (3) is threadedly connected; one end of the hollow screw rod (3) is threadedly connected with a locking nut (4); the slope fastening block (2) is provided with a circular through hole adapted to the hollow screw rod (3); the slope fastening block (2) is sleeved on the hollow screw rod (3) through the circular through hole; when the locking nut (4) is locked on the hollow screw rod (3) and abuts against the slope fastening block (2), the lubrication function block (1) and the slope fastening block (2) will be misaligned due to the inclined surface structure.
2. An eccentric fastening device according to claim 1, characterized in that: The lubrication function block (1) and the slope fastening block (2) are both made of polymer materials.
3. An eccentric fastening device according to claim 1, characterized in that: The inner diameter of the circular perforation is 4-6 mm larger than that of the hollow screw rod (3).