Anti-fatigue deformation printer shaft structure

Abstract

The utility model relates to the technical field of printers, and discloses an anti-fatigue-deformation printer shaft structure which comprises a shaft core and an outer shaft, the outer shaft is connected with the shaft core in a sleeving mode, and a plurality of heat dissipation holes are formed in the outer surface of the outer shaft. According to the anti-fatigue-deformation printer shaft structure, the heat dissipation holes can be reinforced through the rigidity of the reinforcing rings by arranging the reinforcing rings, stress is prevented from being concentrated to the heat dissipation holes in the high-speed rotation process of the outer shaft, and therefore stress concentration is effectively dispersed and resisted, the shaft core and the outer shaft can keep rotating synchronously by installing the reinforcing pieces, and the service life of the shaft core is prolonged. The bearing capacity of the outer shaft can be enhanced through cooperation of the reinforcing pieces, the outer shaft can better resist external pressure and deformation, the reinforcing pieces at the two ends of the shaft core not only enhance the stability of the shaft core, but also form a firmer overall structure through insertion connection with the outer shaft and contact with the reinforcing pieces, and the service life of the shaft core is prolonged. The arrangement of the reinforcing pieces and the reinforcing pieces is beneficial to more uniform distribution of stress in the whole shafting structure, and local damage caused by stress concentration is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of printers, in particular to a printer shaft structure resistant to fatigue deformation. BACKGROUND

[0002] A printer is an output device, and its main function is to convert digital information (such as documents, pictures, graphics, etc.) in a computer or other electronic device into a physical form, i.e., print it on paper or other media. Printers achieve the printing process through various technologies such as inkjet, laser, thermal, and needle type, and are widely used in homes, offices, schools, businesses, and various professional fields.

[0003] The existing patent (announcement number: CN216635920U) discloses a printer shaft, which includes a shaft core and an outer shaft, both of which are arranged in a ring structure. The outer shaft is sleeved on the outer side of the shaft core, and a plurality of support portions are provided between the inner side surface of the outer shaft and the outer side surface of the shaft core. A ventilation groove for heat dissipation is provided between adjacent two support portions. The printer shaft formed by the shaft core and the outer shaft has a double-layer structure. Compared with the single-layer structure of the existing printer shaft, the double-layer structure improves the anti-deformation ability of the printer shaft, increases the strength of the printer shaft, and reduces the bending of the printer shaft. At the same time, the ventilation grooves are provided between the support portions, and the airflow carries away the heat of the outer shaft when passing through the ventilation grooves, reducing the overheating of the shaft core during long-term operation, enhancing the overall heat dissipation effect of the printer shaft, and improving the stability of the printer shaft.

[0004] In the above document, the airflow carries away the heat of the outer shaft when passing through the ventilation grooves, reducing the overheating of the shaft core during long-term operation, enhancing the overall heat dissipation effect of the printer shaft, and improving the stability of the printer shaft. However, stress concentration occurs at the edges of the heat dissipation holes, especially under high load or high-speed rotation, which significantly increases the stress concentration and becomes the starting point of fatigue cracks. TECHNICAL CONTENT

[0005] In view of the deficiencies of the prior art, the present application provides a printer shaft structure resistant to fatigue deformation, which has the advantages of preventing deformation and solves the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a printer shaft structure resistant to fatigue deformation, comprising a shaft core and an outer shaft, the outer shaft is sleeved with the shaft core, a plurality of heat dissipation holes are formed on the outer surface of the outer shaft, and a reinforcing assembly is arranged on the outer surface of the outer shaft;

[0007] The reinforcing assembly comprises reinforcing rings, a plurality of reinforcing rings are in interference connection with the heat dissipation holes adjacent thereto, a plurality of reinforcing members are fixedly connected to the inner wall of the outer shaft, reinforcing members are sleeved with the outer shaft and in contact with the reinforcing members adjacent thereto.

[0008] By the above scheme, the shaft core and the outer shaft can be kept synchronous rotation by installing the reinforcing piece, and the cooperation with the reinforcing piece can enhance the carrying capacity of the outer shaft.

[0009] Both of the reinforcing pieces are connected with the shaft core by bolts, and the reinforcing piece and the shaft core are connected by bolts, so that the reinforcing piece can drive the outer shaft to rotate during the rotation of the shaft core, and the outer shaft can keep synchronous rotation with the shaft core.

[0010] The inner walls of both ends of the outer shaft are provided with anti-skid rubber rings, both of the anti-skid rubber rings are in contact with the shaft core, and both of the anti-skid rubber rings are located inside the reinforcing piece close to them. The installation of the anti-skid rubber ring can increase the resistance between the shaft core and the outer shaft, and at the same time, it can avoid damage to the shaft core when the reinforcing piece is installed.

[0011] The plurality of reinforcing pieces are in a triangular structure inside the outer shaft, and the triangular structure of the reinforcing piece can support the outer shaft through the stability of its structure, so that the outer shaft is more stable, and at the same time, the outer shaft has higher carrying capacity.

[0012] The outer surface of the outer shaft is connected with a plurality of rigid reinforcing rings by interference, and the installation of the rigid reinforcing ring can reinforce the heat dissipation hole of the outer shaft, which can prevent the stress concentration at the heat dissipation hole from causing deformation of the outer shaft.

[0013] The reinforcing ring is made of high-strength alloy material, which can withstand huge impact force and pressure, ensure that the reinforcing ring is not easy to deform or break in various harsh environments, and make it can perform higher carrying capacity when bearing axial pressure, bending moment and other complex loads.

[0014] The plurality of heat dissipation holes are circumferentially distributed, and the circumferential distribution of the heat dissipation holes on the outer shaft can effectively increase the heat dissipation area, so that the heat can be dissipated to the surrounding environment more quickly, which helps to form a more uniform heat flow field and improve the conduction and dissipation efficiency of heat.

[0015] The outer shaft is in a compressed state to the two anti-skid rubber rings, the anti-skid rubber ring has good friction and adsorption force, and when it is compressed on the shaft core, it can more effectively prevent the outer shaft from slipping when rotating or under stress. This close contact ensures the maximization of the anti-skid effect.

[0016] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0017] The anti-fatigue deformation printer shaft structure can reinforce the heat dissipation hole through the rigidity of the reinforcing ring, prevent stress from being concentrated on the heat dissipation hole in the process of high-speed rotation of the outer shaft, effectively disperse and resist stress concentration, prevent component damage caused by excessive local stress, enable the shaft core and the outer shaft to rotate synchronously through the installation of the reinforcing piece, and enable the outer shaft to have enhanced load bearing capacity through cooperation of the reinforcing piece, so that the outer shaft can resist external pressure and deformation better, the reinforcing piece at both ends of the shaft core not only enhances the stability of the shaft core, but also forms a more solid overall structure through insertion with the outer shaft and contact with the reinforcing piece, and the reinforcing piece and the reinforcing piece are arranged to help distribute stress more evenly in the entire shaft system, avoiding local damage caused by stress concentration. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0019] Figure 2 It is a schematic diagram of the reinforcing assembly structure of the present application;

[0020] Figure 3 It is a schematic diagram of the overall structure of the present application; Figure 1

[0021] Figure 4 It is a schematic diagram of the outer shaft structure of the present application;

[0022] Figure 5 It is a schematic diagram of the overall structure of the present application; Figure 2

[0023] In the drawings:

[0024] 1, shaft core; 2, outer shaft; 3, heat dissipation hole; 4, reinforcing assembly;

[0025] 401, reinforcing ring; 402, reinforcing piece; 403, reinforcing piece;

[0026] 5, anti-skid rubber ring; 6, rigid reinforcing ring. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] Please refer to Figure 1 , Figure 2 and Figure 3 ​​The anti-fatigue deformation printer shaft structure in the embodiment comprises a shaft core 1 and an outer shaft 2, the outer shaft 2 is sleeved with the shaft core 1, a plurality of heat dissipation holes 3 are formed on the outer surface of the outer shaft 2, and a reinforcing assembly 4 is arranged on the outer surface of the outer shaft 2.

[0029] Please refer to Figure 1 , Figure 2 and Figure 4 The reinforcing assembly 4 comprises reinforcing rings 401, the reinforcing rings 401 are in interference connection with the heat dissipation holes 3 close to the reinforcing rings 401, a plurality of reinforcing pieces 402 are fixedly connected to the inner wall of the outer shaft 2, reinforcing pieces 403 are sleeved with both ends of the shaft core 1, the reinforcing pieces 403 are in insertion with the outer shaft 2 and in contact with the reinforcing pieces 402 close to the reinforcing pieces 403, the reinforcing rings 401 can reinforce the heat dissipation holes 3 through the rigidity of the reinforcing rings 401, so that the stress concentration in the process of high-speed rotation of the outer shaft 2 is prevented, thereby effectively dispersing and resisting the stress concentration, preventing the damage of components caused by excessive local stress, the shaft core 1 and the outer shaft 2 can be kept synchronous rotation through the installation of the reinforcing pieces 403, and the cooperation of the reinforcing pieces 402 can enhance the carrying capacity of the outer shaft 2, so that the outer shaft 2 can resist external pressure and deformation better, the reinforcing pieces 403 at both ends of the shaft core 1 not only enhance the stability of the shaft core 1, but also form a more solid overall structure through the insertion with the outer shaft 2 and the contact with the reinforcing pieces 402, and the arrangement of the reinforcing pieces 402 and the reinforcing pieces 403 helps to distribute the stress more evenly in the entire shafting structure, avoiding local damage caused by stress concentration.

[0030] Please refer to Figure 1 , Figure 2 and Figure 3 Both reinforcing pieces 403 are connected with the shaft core 1 through bolts, the reinforcing pieces 403 and the shaft core 1 connected through the bolts can drive the outer shaft 2 to rotate in the process of rotation of the shaft core 1, so that the outer shaft 2 can keep synchronous rotation with the shaft core 1, the inner walls at both ends of the outer shaft 2 are provided with anti-skid rubber rings 5, both anti-skid rubber rings 5 are in contact with the shaft core 1, and both anti-skid rubber rings 5 are located inside the reinforcing pieces 403 close to the anti-skid rubber rings 5, the installation of the anti-skid rubber rings 5 can increase the resistance between the shaft core 1 and the outer shaft 2, and at the same time, can avoid damage to the shaft core 1 when the reinforcing pieces 403 are installed.

[0031] Please refer to Figure 1 , Figure 3 and Figure 5, the plurality of reinforcing members 402 form a triangular structure inside the outer shaft 2, the triangular structure of the reinforcing members 402 can support the outer shaft 2 through the stability of its structure, making the outer shaft 2 more stable, while also providing the outer shaft 2 with higher carrying capacity. The outer surface of the outer shaft 2 is connected with a plurality of rigid reinforcing rings 6 by interference fitting. The installation of the rigid reinforcing rings 6 can reinforce the heat dissipation holes 3 of the outer shaft 2, preventing stress concentration at the heat dissipation holes 3 from causing deformation of the outer shaft 2. The reinforcing ring 401 is made of high-strength alloy material, which can withstand huge impact force and pressure, ensuring that the reinforcing ring 401 is not easily deformed or broken in various harsh environments, so that it can perform better under complex loads such as axial pressure and bending moment.

[0032] Please refer to Figure 1 、 Figure 4 and Figure 5 , a plurality of heat dissipation holes 3 are circumferentially distributed, and the circumferential distribution of the heat dissipation holes 3 on the outer shaft 2 effectively increases the heat dissipation area, allowing heat to be dissipated more quickly to the surrounding environment, helping to form a more uniform heat flow field and improving heat conduction and dissipation efficiency. The outer shaft 2 is in a compressed state with the two anti-skid rubber rings 5, and the anti-skid rubber rings 5 have good friction and adsorption force. When compressed on the shaft core 1, they can more effectively prevent the outer shaft 2 from slipping when rotating or under stress. This close contact ensures the maximization of the anti-skid effect.

[0033] The anti-fatigue deformation printer shaft structure in this embodiment can reinforce the heat dissipation holes 3 through the rigidity of the reinforcing ring 401, preventing stress concentration at the heat dissipation holes 3 during high-speed rotation of the outer shaft 2, thereby effectively dispersing and resisting stress concentration and preventing component damage due to excessive local stress. By installing the reinforcing members 403, the shaft core 1 and the outer shaft 2 can rotate in synchronization, and the cooperation of the reinforcing members 402 can enhance the carrying capacity of the outer shaft 2, making it more resistant to external pressure and deformation. The reinforcing members 403 at both ends of the shaft core 1 not only enhance the stability of the shaft core 1, but also form a more solid overall structure through the insertion with the outer shaft 2 and the contact with the reinforcing members 402. The arrangement of the reinforcing members 402 and the reinforcing members 403 helps to distribute stress more evenly throughout the shafting structure, avoiding local damage caused by stress concentration.

[0034] The working principle of the above embodiment is that when the shaft core 1 rotates, the shaft core 1 can drive the outer shaft 2 to rotate through the reinforcing piece 403, and when the outer shaft 2 rotates at high speed, the heat holes 3 can dissipate the heat on the outer shaft 2, avoiding overheating of the outer shaft 2 and deformation. By installing the reinforcing ring 401 inside the heat holes 3, the heat holes 3 can be reinforced through the rigidity of the reinforcing ring 401, preventing stress concentration on the heat holes 3 during high-speed rotation of the outer shaft 2, thereby effectively dispersing and resisting stress concentration, preventing component damage caused by excessive local stress. By installing the reinforcing piece 403, the shaft core 1 and the outer shaft 2 can rotate synchronously, and the cooperation with the reinforcing piece 402 can enhance the load-carrying capacity of the outer shaft 2, making it more resistant to external pressure and deformation. The reinforcing piece 403 at both ends of the shaft core 1 not only enhances the stability of the shaft core 1, but also forms a more solid overall structure through the insertion with the outer shaft 2 and the contact with the reinforcing piece 402. The arrangement of the reinforcing piece 402 and the reinforcing piece 403 helps to distribute stress more evenly throughout the shaft system structure, avoiding local damage caused by stress concentration. During rotation of the outer shaft 2, the installation of the reinforcing piece 402 arranged in a triangular structure can make the outer shaft 2 have high load-carrying capacity, so that the outer shaft 2 can rotate stably. During synchronous rotation of the shaft core 1 and the outer shaft 2, the addition of the anti-skid rubber ring 5 can provide friction and adsorption force between them. When the anti-skid rubber ring 5 is compressed on the shaft core 1, it can more effectively prevent the outer shaft 2 from slipping during rotation or stress.

[0035] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by an "including a" statement does not exclude the existence of additional identical elements in the process, method, article, or apparatus including the element.

[0036] Although embodiments of the present application have been shown and described, it will be understood by those having ordinary skill in the art that various changes, modifications, alternatives, and variations can be made thereto without departing from the principles and spirit of the application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fatigue-resistant deformation printer shaft structure, comprising a shaft core (1) and an outer shaft (2), characterized in that: The outer shaft (2) is sleeved with the shaft core (1), and the outer surface of the outer shaft (2) is provided with a plurality of heat dissipation holes (3), and the outer surface of the outer shaft (2) is provided with a reinforcing component (4); The reinforcement component (4) includes a reinforcement ring (401), and multiple reinforcement rings (401) are interference-connected to the heat dissipation holes (3) adjacent to them. Multiple reinforcing members (402) are fixedly connected to the inner wall of the outer shaft (2). Reinforcing members (403) are sleeved on both ends of the shaft core (1). Two reinforcing members (403) are inserted into the outer shaft (2) and contact the reinforcing members (402) adjacent to it.

2. The fatigue-resistant deformation printer shaft structure according to claim 1, characterized in that: Both of the aforementioned reinforcement components (403) are connected to the shaft core (1) by bolts.

3. The fatigue-resistant deformation printer shaft structure according to claim 1, characterized in that: The inner walls at both ends of the outer shaft (2) are provided with anti-slip rubber rings (5), both of which are in contact with the shaft core (1) and are located inside the reinforcement part (403) close to it.

4. The fatigue-resistant deformation printer shaft structure according to claim 1, characterized in that: The multiple reinforcing members (402) are arranged in a triangular structure inside the outer shaft (2).

5. The fatigue-resistant deformation printer shaft structure according to claim 1, characterized in that: The outer surface of the outer shaft (2) is interference-fitted with multiple rigid reinforcing rings (6).

6. The fatigue-resistant deformation printer shaft structure according to claim 1, characterized in that: The reinforcing ring (401) is made of high-strength alloy material.

7. The fatigue-resistant deformation printer shaft structure according to claim 1, characterized in that: The multiple heat dissipation holes (3) are arranged in a circular pattern.

8. The fatigue-resistant deformation printer shaft structure according to claim 1, characterized in that: The outer shaft (2) is in a compressed state against the two anti-slip rubber rings (5).

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