Precise seamless steel tube for gas spring

Abstract

The utility model discloses a precise seamless steel pipe for a gas spring, and relates to the technical field of seamless steel pipes, the precise seamless steel pipe comprises a steel pipe and protection mechanisms, the protection mechanisms are arranged at the left end and the right end of the steel pipe, through the arrangement of the protection mechanisms, the steel pipe is subjected to cold-drawing forming treatment, in the cold-drawing process, crystal grains of a material are lengthened, and a fibrous structure is formed; the internal stress of the steel pipes is eliminated through heat treatment, the organization structure is optimized, the mechanical property and corrosion resistance of the steel pipes are improved, when multiple steel pipes are stacked, the steel pipes are separated through the splicing clamping rings, meanwhile, the splicing clamping rings are connected in a clamped mode, and mutual friction between the steel pipes in the transportation process is avoided; and then the interior of the steel pipe is subjected to air exhaust heat dissipation treatment through the heat dissipation fan, the situation that internal temperature cannot be dissipated due to accumulation of the steel pipe is avoided, meanwhile, dustproof protection is conducted on the interior of the steel pipe through a dustproof net, and damage to the steel pipe caused by the fact that external dust and sundries are sucked into the steel pipe when the heat dissipation fan runs is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of seamless steel pipes, in particular to a precision seamless steel pipe for gas springs. Background Art

[0002] Seamless steel pipe is made of a whole piece of metal, and there is no seam on the surface. It is called seamless steel pipe. According to the production method, seamless pipes are divided into hot-rolled pipes, cold-rolled pipes, cold-drawn pipes, extruded pipes, jacking pipes, etc.; according to the cross-sectional shape, seamless steel pipes are divided into round and special-shaped pipes. Special-shaped pipes have square, oval, triangle, hexagon, melon seed, star, winged pipes and many other complex shapes.

[0003] After searching, the patent number "CN214661683U" mentioned in the text that "the utility model discloses a precision seamless steel pipe for gas springs, which relates to the technical field of seamless steel pipes, including a steel pipe body and a base, the outer wall of the steel pipe body is fixedly sleeved with a base, the outer wall of the steel pipe body is movably sleeved with a cleaning device, the bottom of the steel pipe body is overlapped with a protective device, and the cleaning device includes a dust removal device." When in use, the steel pipe is fixed and placed by a pallet, but the pallet will occupy a large space when in use, resulting in a reduction in the stacking of steel pipes and a reduction in transportation efficiency. At the same time, the steel pipes will slide during transportation, causing the stacked steel pipes to rub against each other, resulting in damage to the surface of the steel pipes, affecting the performance of the formed gas spring.

[0004] To this end, we provide a precision seamless steel tube for gas springs to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a precision seamless steel pipe for a gas spring, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a precision seamless steel pipe for a gas spring, comprising a steel pipe and a protective mechanism, wherein the left and right ends of the steel pipe are provided with protective mechanisms;

[0007] The protection mechanism includes a mounting assembly, a heat dissipation assembly and a dustproof assembly. The left and right ends of the steel pipe are equipped with mounting assemblies, the left end of the mounting assembly is provided with a heat dissipation assembly, and the right end of the mounting assembly is equipped with a dustproof assembly.

[0008] Preferably, the steel pipe is made of 42CrMo alloy structural steel, and the surface of the steel pipe is polished.

[0009] Preferably, the steel pipe is formed by a cold drawing process, and the steel pipe is heat treated by an aging treatment after forming.

[0010] Preferably, the installation assembly includes an installation inner sleeve, an installation outer sleeve and a splicing clamp ring. The inner sides of the left and right ends of the steel pipe are movably connected with the installation inner sleeves, and the outer sides of the left and right ends of the steel pipe are movably connected with the installation outer sleeves. A splicing clamp ring is provided on the outer side of the installation outer sleeve, and the installation inner sleeve is made of rubber.

[0011] Preferably, three groups of the splicing clamps are provided, and the splicing clamps are made of rubber material.

[0012] Preferably, the heat dissipation assembly comprises a mounting frame and a heat dissipation fan, the mounting frame is arranged on the left side of the mounting inner sleeve, and the heat dissipation fan is installed on the inner side of the mounting frame.

[0013] Preferably, the dustproof assembly comprises a mounting ring and a dustproof net, the mounting ring is arranged on the right side of the mounting inner sleeve, and the dustproof net is fixedly mounted on the inner side of the mounting ring.

[0014] Preferably, the surface of the steel pipe is sprayed with a wear-resistant coating, and the wear-resistant coating is made of silicon nitride.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. Through the setting of wear-resistant coating, by spraying silicon nitride coating on the surface of steel pipe, the strength and wear resistance of the steel pipe surface are improved;

[0017] 2. Through the setting of the protective mechanism, the steel pipe is cold-drawn and formed. During the cold-drawing process, the grains of the material are elongated to form a fibrous structure, thereby improving the strength and hardness of the material. Subsequently, heat treatment is performed to eliminate the internal stress of the steel pipe, optimize the organizational structure, and further improve the mechanical properties and corrosion resistance of the steel pipe. When multiple steel pipes are stacked, the steel pipes are separated by splicing clamps, and the splicing clamps are mutually clamped to avoid mutual friction between the steel pipes during transportation. Subsequently, the inside of the steel pipe is evacuated and cooled by a cooling fan to avoid the internal temperature of the steel pipe being unable to dissipate due to the accumulation of steel pipes, affecting the performance of the steel pipe. At the same time, the inside of the steel pipe is dust-proofed by a dustproof net to avoid external dust and debris being sucked into the steel pipe when the cooling fan is running, causing damage to the steel pipe. In this way, the splicing clamps can make the steel pipe have more stacking quantity during transportation and stacking, and at the same time avoid sliding between the steel pipes to ensure the quality of the seamless steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall appearance structure proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the installation assembly and the heat dissipation assembly proposed by the utility model;

[0020] Figure 3It is a schematic diagram of the overall right side structure proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of the overall front section structure proposed by the utility model.

[0022] In the figure: 1. Steel pipe; 2. Protection mechanism; 21. Installation assembly; 211. Installation inner sleeve; 212. Installation outer sleeve; 213. Splicing clamp ring; 22. Heat dissipation assembly; 221. Mounting frame; 222. Cooling fan; 23. Dustproof assembly; 231. Mounting ring; 232. Dustproof net; 3. Wear-resistant coating. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1

[0025] See also Figure 1-4 As shown, a precision seamless steel pipe for a gas spring comprises a steel pipe 1 and a protective mechanism 2, wherein the protective mechanism 2 is arranged at the left and right ends of the steel pipe 1;

[0026] The protection mechanism 2 includes a mounting assembly 21, a heat dissipation assembly 22 and a dustproof assembly 23. The mounting assembly 21 is mounted on the left and right ends of the steel pipe 1. The heat dissipation assembly 22 is disposed on the left end of the mounting assembly 21, and the dustproof assembly 23 is mounted on the right end of the mounting assembly 21.

[0027] Furthermore, the material of the steel pipe 1 is 42CrMo alloy structural steel, and the surface of the steel pipe 1 is polished. The 42CrMo alloy structural steel can make the steel pipe 1 have high strength and toughness, so that it can withstand high impact and vibration. At the same time, the steel pipe 1 is polished to obtain a smooth and beautiful surface, and the friction resistance is reduced, thereby improving the performance of the final gas spring.

[0028] Furthermore, the steel pipe 1 is formed by a cold drawing process, and the steel pipe 1 is heat treated by aging treatment after forming. During the cold drawing process, the grains of the material are elongated to form a fibrous structure, thereby improving the strength and hardness of the material. Subsequently, heat treatment is performed to eliminate the internal stress of the steel pipe 1, optimize the organizational structure, and further improve the mechanical properties and corrosion resistance of the steel pipe 1.

[0029] Furthermore, the installation component 21 includes an installation inner sleeve 211, an installation outer sleeve 212 and a splicing clamp ring 213. The inner sides of the left and right ends of the steel pipe 1 are movably connected with the installation inner sleeve 211, and the outer sides of the left and right ends of the steel pipe 1 are movably connected with the installation outer sleeve 212. The outer side of the installation outer sleeve 212 is provided with a splicing clamp ring 213. The installation inner sleeve 211 is made of rubber material, and the installation inner sleeve 211 and the installation outer sleeve 212 are sleeved on both ends of the steel pipe 1. At the same time, the rubber material increases the friction between the installation inner sleeve 211, the installation outer sleeve 212 and the steel pipe 1 to prevent the installation inner sleeve 211 and the installation outer sleeve 212 from falling off.

[0030] Furthermore, three groups of splicing clamps 213 are provided. The splicing clamps 213 are made of rubber. When multiple steel pipes 1 are stacked, the multiple steel pipes 1 are separated by the splicing clamps 213. At the same time, the splicing clamps 213 are mutually clamped to avoid mutual friction between the steel pipes 1 during transportation, which may cause damage to the surface of the steel pipes 1 and affect the quality of the gas spring after forming.

[0031] Furthermore, the heat dissipation component 22 includes a mounting frame 221 and a heat dissipation fan 222. The mounting frame 221 is arranged on the left side of the inner sleeve 211, and the heat dissipation fan 222 is installed on the inner side of the mounting frame 221. The heat dissipation fan 222 is used to exhaust and dissipate air inside the steel pipe 1 to avoid the internal temperature of the steel pipe 1 being unable to dissipate due to accumulation, thereby affecting the performance of the steel pipe 1.

[0032] Furthermore, the dustproof component 23 includes a mounting ring 231 and a dustproof net 232. The mounting ring 231 is arranged on the right side of the inner sleeve 211, and the dustproof net 232 is fixedly installed on the inner side of the mounting ring 231. The dustproof net 232 is used to protect the interior of the steel pipe 1 from dust, so as to prevent external dust and debris from being sucked into the steel pipe 1 and causing damage thereto when the cooling fan 222 is running.

[0033] Embodiment 2

[0034] See also Figure 4 As shown, in comparison example 1, as another implementation of the utility model, the surface of the steel pipe 1 is sprayed with a wear-resistant coating 3, and the wear-resistant coating 3 is made of silicon nitride. By spraying the silicon nitride coating on the surface of the steel pipe 1, the strength and wear resistance of the surface of the steel pipe 1 are improved.

[0035] Working principle: When in use, the first step is to cold-draw the 42CrMo alloy structural steel to obtain the required size and shape, and then heat-treat to eliminate the internal stress of the steel pipe 1, optimize the organizational structure, and further improve the mechanical properties and corrosion resistance of the steel pipe 1. The second step is to polish the formed steel pipe 1 to obtain a smooth and beautiful surface and reduce friction resistance. Then, the surface of the steel pipe 1 is sprayed with a silicon nitride coating to improve the strength and wear resistance of the surface of the steel pipe 1. The third step is to install the inner sleeve 211 and the outer sleeve. 212 is sleeved on both ends of the steel pipe 1, and then the other steel pipes 1 are separated by splicing clamps 213. At the same time, the splicing clamps 213 are clamped with each other to avoid mutual friction between the steel pipes 1 during transportation. In the fourth step, the inside of the steel pipe 1 is evacuated and cooled by the cooling fan 222, and the inside of the steel pipe 1 is dust-proofed by the dustproof net 232 to avoid external dust and debris being sucked into the steel pipe 1 when the cooling fan 222 is running, causing damage to the steel pipe 1. In this way, the use of a precision seamless steel pipe for a gas spring is completed.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precision seamless steel tube for a gas spring, comprising a steel tube (1) and a protective mechanism (2). It is characterized in that The left and right ends of the steel pipe (1) are provided with protection mechanisms (2); The protection mechanism (2) comprises a mounting assembly (21), a heat dissipation assembly (22) and a dustproof assembly (23). The mounting assembly (21) is mounted on the left and right ends of the steel pipe (1). The left end of the mounting assembly (21) is provided with a heat dissipation assembly (22). The right end of the mounting assembly (21) is provided with a dustproof assembly (23). The mounting assembly (21) comprises a mounting inner sleeve (211), a mounting outer sleeve (212) and a splicing clamp ring (213). The inner sides of the left and right ends of the steel pipe (1) are movably connected with the mounting inner sleeve (211). The outer sides of the left and right ends of the steel pipe (1) are movably connected with the mounting outer sleeve (212). The outer side of the mounting outer sleeve (212) is provided with a splicing clamp ring (213). The mounting inner sleeve (211) is made of rubber.

2. A precision seamless steel tube for gas spring according to claim 1, It is characterized in that The material of the steel pipe (1) is 42CrMo alloy structural steel, and the surface of the steel pipe (1) is polished.

3. The precision seamless steel tube for gas spring according to claim 1, It is characterized in that The splicing clamp rings (213) are provided in three groups, and the splicing clamp rings (213) are made of rubber material.

4. The precision seamless steel tube for gas spring according to claim 1, It is characterized in that The heat dissipation assembly (22) comprises a mounting frame (221) and a heat dissipation fan (222); the mounting frame (221) is arranged on the left side of the mounting inner sleeve (211), and the heat dissipation fan (222) is installed on the inner side of the mounting frame (221).

5. The precision seamless steel tube for gas spring according to claim 1, It is characterized in that The dustproof component (23) comprises a mounting ring (231) and a dustproof net (232); the mounting ring (231) is arranged on the right side of the mounting inner sleeve (211), and the dustproof net (232) is fixedly mounted on the inner side of the mounting ring (231).

6. The precision seamless steel tube for gas spring according to claim 1, It is characterized in that The surface of the steel pipe (1) is sprayed with a wear-resistant coating (3), and the wear-resistant coating (3) is made of silicon nitride.

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