A lubricating grease seal assembly for fuser roller operation noise reduction

Abstract

The utility model discloses a kind of lubricating grease sealing assemblies for fixing roller running noise reduction, it is related to fixing roller running sealing technical field.Processing includes fixing roller main part, the drive connection of fixing roller main part is provided with connecting box, the inside of connecting box is provided with the lubricating grease for noise reduction lubrication, further including elastic sealing assembly, the elastic sealing assembly is set between fixing roller main part and connecting box, by the elastic sealing assembly of being set, so that it is convenient to carry out elastic extrusion to the inner wall of concave tight sleeve and fixing roller main body, so that it is convenient for concave tight sleeve to carry out persistent dynamic close contact with the inner wall of fixing roller main body in use process, improve sealing effect, simultaneously, by the adjusting assembly of being set, so that it is convenient to compensate adjustment to the extrusion degree of compression spring to concave tight sleeve, and then reduce the probability that lubricating grease leaks due to insufficient extrusion degree of compression spring use fatigue, guarantee the stability of compression spring performance use.

Description

Technical Field

[0001] This utility model relates to the field of sealing technology for fuser roller operation, specifically a grease sealing component for noise reduction during fuser roller operation. Background Technology

[0002] The fuser roller is a core component of printing equipment. During operation, it requires lubrication to reduce internal friction and noise. To prevent lubrication leakage, a sealing structure is usually installed between the fuser roller body and the connecting box. The seal is achieved through the contact between the seal and the inner wall of the roller, while ensuring stable rotation of the fuser roller, thus ensuring the normal operation of the printing equipment and the noise reduction effect.

[0003] However, existing sealing structures are insufficient to achieve dynamic sealing between the fuser roller drive shaft and the connecting box. As a result, under long-term friction, the sealing sleeve fatigues and the sealing effect deteriorates, which in turn affects the sealing performance and may even lead to grease leakage, noise and wear at the drive point. Secondly, traditional sealing structures are difficult to compensate and adjust the extrusion force. When the extrusion force is insufficient due to fatigue of the extrusion component, it is difficult to correct it in time, increasing the risk of equipment failure. Therefore, there is an urgent need for a grease sealing component that reduces noise during fuser roller operation to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a grease sealing assembly for reducing noise during the operation of the fixing roller, so as to solve the problem mentioned in the background art that the existing sealing structure is difficult to achieve dynamic sealing between the fixing roller drive shaft and the connecting box.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grease sealing assembly for noise reduction during the operation of a fixing roller, comprising a fixing roller body, a connecting box provided at the drive connection of the fixing roller body, and a grease for noise reduction and lubrication disposed inside the connecting box, and further comprising: An elastic sealing assembly is disposed between the fuser roller body and the connecting box to seal the gap between the fuser roller body and the connecting box; An adjustment component is disposed on the surface of the elastic sealing component and is used to adjust the compression force of the elastic sealing component.

[0006] Preferably, the elastic sealing assembly includes a concave sleeve, which is fitted onto the surface of the fuser roller body and is movably fitted onto the inner wall of the fuser roller body. A compression spring is fitted onto the surface of the connecting box and is disposed on the side wall of the fuser roller body.

[0007] Preferably, the adjusting component includes a compression ring, which is sleeved on the surface of a concave sleeve. One end of the concave sleeve has multiple threaded holes, and the inner wall of the threaded holes is movably fitted with threaded posts. One end of each of the multiple threaded posts abuts against one end of the compression ring, and a nut is threadedly connected to the surface of the threaded holes.

[0008] Preferably, the side wall of the fixing roller body is provided with a clearance groove, the inner wall of the clearance groove is fixedly connected with a sealing gasket, the inner wall of the sealing gasket is rotatably connected to the surface of the drive shaft of the fixing roller body, and the other end of the compression spring abuts against the side wall of the sealing gasket.

[0009] Preferably, one end of the concave sleeve is provided with a plurality of limiting holes, and the inner wall of the limiting holes is slidably connected with limiting posts, and one end of each of the plurality of limiting posts is fixedly connected to one end of the extrusion ring.

[0010] Preferably, the concave sleeve has an installation cavity inside, and a reinforcing tube is fixedly connected to the inner wall of the installation cavity.

[0011] Compared with the prior art, the beneficial effects of this utility model are: The elastic sealing component facilitates elastic compression between the concave sleeve and the inner wall of the fixing roller body, ensuring continuous dynamic tight contact between the concave sleeve and the inner wall of the fixing roller body during use, thus improving the sealing effect. At the same time, the adjustment component allows for compensation and adjustment of the compression force of the compression spring on the concave sleeve, thereby reducing the probability of insufficient compression force due to fatigue of the compression spring and causing grease leakage, and ensuring the stability of the compression spring performance. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial cross-sectional view of the elastic sealing component of this utility model; Figure 3 This is a partial planar cross-sectional view of the adjustment component of this utility model; Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle.

[0013] In the diagram: 1. Fixing roller body; 2. Connecting box; 301. Concave sleeve; 302. Compression spring; 303. Mounting cavity; 304. Reinforcing tube; 305. Alternating groove; 306. Sealing gasket; 401. Extrusion ring; 402. Threaded hole; 403. Threaded post; 404. Nut; 405. Limiting hole; 406. Limiting post. Detailed Implementation

[0014] 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.

[0015] Please see Figure 1 - Figure 4 This utility model provides a grease sealing assembly for noise reduction during the operation of a fixing roller, including a fixing roller body 1, a connecting box 2 at the drive connection of the fixing roller body 1, and a grease for noise reduction and lubrication inside the connecting box 2, and further including: An elastic sealing assembly is disposed between the fuser roller body 1 and the connecting box 2 to seal the gap between the fuser roller body 1 and the connecting box 2. An adjustment component is disposed on the surface of the elastic sealing component and is used to adjust the compression force of the elastic sealing component.

[0016] Furthermore, the elastic sealing assembly includes a concave sleeve 301, which is fitted onto the surface of the fuser roller body 1. The surface of the concave sleeve 301 is movably fitted with the inner wall of the fuser roller body 1. A compression spring 302 is fitted onto the surface of the connecting box 2 and is disposed on the side wall of the fuser roller body 1. An installation cavity 303 is formed inside the concave sleeve 301, and a reinforcing tube 304 is fixedly connected to the inner wall of the installation cavity 303. The elastic sealing assembly facilitates the use of the concave sleeve 301 to connect the fuser roller body 1 and the connecting box 2. The gap between them is sealed. At the same time, the compression spring 302 is provided so that the concave sleeve 301 and the inner wall of the fixing roller body 1 are squeezed under the elastic potential energy of the compression spring 302. This makes it easier for the concave sleeve 301 to make continuous dynamic close contact with the inner wall of the fixing roller body 1 during use, thereby improving the sealing effect. The reinforcing tube 304 is provided to improve the rigidity of the concave sleeve 301, thereby making it easier for the side wall of the concave sleeve 301 to make close contact with the side wall of the fixing roller body 1 under the compression of the compression spring 302.

[0017] Furthermore, the adjusting assembly includes a compression ring 401, which is sleeved on the surface of a concave sleeve 301. One end of the concave sleeve 301 has multiple threaded holes 402. Threaded posts 403 are movably fitted onto the inner wall of each threaded hole 402, with one end of each threaded post 403 abutting against one end of the compression ring 401. A nut 404 is threadedly connected to the surface of the threaded holes 402. One end of the concave sleeve 301 has multiple limiting holes 405, with limiting posts 406 slidably connected to the inner wall of each limiting hole 405. One end of each limiting post 406 is fixedly connected to one end of the compression ring 401. Through the adjusting assembly, the nut 404 rotates, passing through the threaded posts 403 to press against the compression ring 401. The compression ring 401 is compressed to compensate and adjust the compression force of the compression spring 302 on the concave bushing 301, thereby reducing the probability of grease leakage due to insufficient compression force caused by fatigue of the compression spring 302 and ensuring the stability of the performance of the compression spring 302. The limiting hole 405 and the limiting post 406 are used in cooperation to limit the compression ring 401, thereby facilitating the parallel movement of the compression ring 401 and improving the stability of the compression of the compression spring 302 by the compression ring 401.

[0018] Furthermore, a clearance groove 305 is provided on the side wall of the fuser roller body 1. A sealing gasket 306 is fixedly connected to the inner wall of the clearance groove 305. The inner wall of the sealing gasket 306 is rotatably connected to the surface of the drive shaft of the fuser roller body 1. The other end of the compression spring 302 abuts against the side wall of the sealing gasket 306. Through the clearance groove 305, the compression spring 302 compresses the sealing gasket 306 while compressing the concave sleeve 301, thereby facilitating the sealing gasket 306 to perform secondary sealing of the gap between the fuser roller body 1 and the connecting box 2, thereby further reducing the probability of grease leakage.

[0019] Working principle: During use, the elastic sealing component facilitates the sealing of the gap between the fuser roller body 1 and the connecting box 2 by using the concave sealing sleeve 301. At the same time, the compression spring 302 compresses the concave sealing sleeve 301 against the inner wall of the fuser roller body 1 under the elastic potential energy of the compression spring 302, thereby facilitating continuous dynamic tight contact between the concave sealing sleeve 301 and the inner wall of the fuser roller body 1 during use, and improving the sealing effect.

[0020] Secondly, the adjustment component allows the nut 404 to rotate and compress the compression ring 401 through the threaded post 403. This facilitates the compensation and adjustment of the compression force of the compression spring 302 on the concave bushing 301, thereby reducing the probability of insufficient compression force due to fatigue of the compression spring 302 and causing grease leakage. This ensures the stability of the compression spring 302's performance. The limiting hole 405 and the limiting post 406 work together to limit the compression ring 401, facilitating its parallel movement and improving the stability of the compression ring 401's compression of the compression spring 302.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A grease sealing assembly for noise reduction during the operation of a fixing roller, comprising a fixing roller body (1), wherein a connecting box (2) is provided at the drive connection of the fixing roller body (1), and the connecting box (2) is provided with grease for noise reduction lubrication, characterized in that, Also includes: An elastic sealing assembly is disposed between the fixing roller body (1) and the connecting box (2) to seal the gap between the fixing roller body (1) and the connecting box (2); An adjustment component is disposed on the surface of the elastic sealing component and is used to adjust the compression force of the elastic sealing component.

2. The grease sealing assembly for noise reduction during fixing roller operation according to claim 1, characterized in that: The elastic sealing assembly includes a concave sleeve (301), which is fitted onto the surface of the fuser roller body (1). The surface of the concave sleeve (301) is movably fitted with the inner wall of the fuser roller body (1). A compression spring (302) is fitted onto the surface of the connecting box (2), and the compression spring (302) is disposed on the side wall of the fuser roller body (1).

3. The grease sealing assembly for noise reduction during fixing roller operation according to claim 2, characterized in that: The adjusting assembly includes a compression ring (401), which is sleeved on the surface of a concave sleeve (301). One end of the concave sleeve (301) has multiple threaded holes (402). The inner wall of the threaded hole (402) is movably sleeved with a threaded post (403). One end of each of the multiple threaded posts (403) abuts against one end of the compression ring (401). The surface of the threaded hole (402) is threaded with a nut (404).

4. The grease sealing assembly for noise reduction during fixing roller operation according to claim 2, characterized in that: The side wall of the fixing roller body (1) is provided with a relief groove (305), and a sealing gasket (306) is fixedly connected to the inner wall of the relief groove (305). The inner wall of the sealing gasket (306) is rotatably connected to the surface of the drive shaft of the fixing roller body (1), and the other end of the compression spring (302) abuts against the side wall of the sealing gasket (306).

5. The grease sealing assembly for noise reduction during fixing roller operation according to claim 3, characterized in that: One end of the concave sleeve (301) is provided with multiple limiting holes (405), and the inner wall of the limiting hole (405) is slidably connected with a limiting post (406). One end of each of the multiple limiting posts (406) is fixedly connected to one end of the extrusion ring (401).

6. The grease sealing assembly for noise reduction during fixing roller operation according to claim 2, characterized in that: The concave sleeve (301) has an installation cavity (303) inside, and a reinforcing tube (304) is fixedly connected to the inner wall of the installation cavity (303).

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