Heat treatment device for manufacturing high-strength bolt

Abstract

The utility model provides a heat treatment device for manufacturing high-strength bolts, which comprises a heating box, the heating box comprises a box body and a box cover, a heating plate is fixedly arranged in the box body, a hydraulic push rod is fixedly arranged on the box body, the output end of the hydraulic push rod is fixedly connected with the box cover, and an exhaust fan is fixedly arranged on the box body. The input end of the exhaust fan is connected with the interior of the box body, the output end of the exhaust fan is fixedly provided with a first pipeline, the first pipeline is connected with the front end face of the box body in a penetrating mode, the input end of the exhaust fan is fixedly provided with a second pipeline, one end of the second pipeline is fixedly connected with a three-way valve, the three-way valve is fixedly connected with the box body, and the three-way valve is further fixedly provided with a third pipeline. The third pipeline is connected with the left end face of the box body in a penetrating mode, a first support is fixedly installed on the box cover, and a tray is slidably connected to the first support. The heating plate is arranged in the box body, the exhaust fan is arranged outside the box body, air is heated through the heating plate, hot air is continuously circulated through the exhaust fan, and the heat treatment efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt manufacturing, in particular to a heat treatment device for manufacturing high-strength bolts. Background Art

[0002] A bolt is a cylindrical, threaded fastener used in mechanical parts. Composed of a head and a screw, it mates with a nut to securely connect two parts with through-holes. This connection is called a bolted connection. Unscrewing the nut from the bolt allows the two parts to separate, making bolted connections removable. Bolts undergo heat treatment during production. Heat treatment involves heating, holding, and cooling a material in a solid state to achieve the desired microstructure and properties. The importance of heat treatment gradually gained recognition during the transition from the Stone Age to the Bronze and Iron Ages.

[0003] In the process of heat treatment of bolts, we often place the bolts inside the heating box for heat treatment. In the existing technology, after the bolts are placed inside the heating box for heat treatment, some bolts may be placed in the innermost part of the heating box. However, the bolts placed in the innermost part of the heating box are often not convenient to take out after heat treatment, which wastes a lot of time and has low heating efficiency.

[0004] In view of this, it is necessary to provide a heat treatment device for manufacturing high-strength bolts. Utility Model Content

[0005] The purpose of the utility model is to provide a heat treatment device for manufacturing high-strength bolts, so as to solve the problem that the bolts are inconvenient to remove due to their position.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a heat treatment device for manufacturing high-strength bolts, comprising a heating box, the heating box comprising a box body and a box cover, a heating plate fixedly installed in the box body, a hydraulic push rod fixedly installed on the box body, the output end of the hydraulic push rod fixedly connected to the box cover, an exhaust fan fixedly installed on the box body, the input end of the exhaust fan connected to the inside of the box body, a pipe 1 fixedly installed on the output end of the exhaust fan, the pipe 1 is connected through the front end surface of the box body, a pipe 2 is fixedly installed on the input end of the exhaust fan, one end of the pipe 2 is fixedly connected to a three-way valve, the three-way valve is fixedly connected to the box body, a pipe 3 is also fixedly installed on the three-way valve, the pipe 3 is connected through the left end surface of the box body, a bracket 1 is fixedly installed on the box cover, and a tray is slidably connected to the bracket 1.

[0007] Preferably, an observation window is provided on the box body.

[0008] Preferably, an exhaust pipe is also fixedly mounted on the three-way valve.

[0009] Preferably, a second bracket is fixedly mounted on the box.

[0010] Preferably, a smoothing device is provided on the second bracket.

[0011] Preferably, the smoothing device includes motor 1, a bidirectional threaded rod, slide rod 1, and slide rod 2. Motor 1 is fixedly connected to bracket 2. The output end of motor 1 is fixedly installed with a bidirectional threaded rod. The bidirectional threaded rod is rotatably connected to bracket 2. Slide rod 1 and slide rod 2 are both threadedly connected to the bidirectional threaded rod. Slide rod 1 and slide rod 2 are both slidably connected to bracket 2.

[0012] Preferably, both the sliding rod 1 and the sliding rod 2 are provided with brushes.

[0013] Preferably, a pull ring 1 is fixedly mounted on the front end surface of the tray, and a plurality of pull rings 2 are fixedly mounted on the upper end surface of the tray.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. By arranging a heating plate inside the box and an exhaust fan outside the box, the air is heated by the heating plate and the exhaust fan continuously circulates the hot air to improve the efficiency of heat treatment;

[0016] 2. A bracket is set on the box cover, a pallet is placed on the bracket, and the box cover and the box body are sealed by a hydraulic cylinder, which reduces direct contact of personnel with hot air and increases personnel safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the main cross-sectional structure of the present utility model;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the internal three-dimensional structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the top structure of the utility model;

[0022] In the figure: 1. Heating box, 11. Observation window, 2. Box body, 21. Heating plate, 22. Hydraulic push rod, 3. Box cover, 30. Smoothing device, 31. Exhaust fan, 311. Pipeline 1, 312. Pipeline 2, 32. Three-way valve, 321. Exhaust pipe, 322. Pipeline 3, 33. Bracket 1, 34. Motor 1, 35. Bidirectional threaded rod, 36. Bracket 2, 333. Brush, 334. Slide, 335. Slide rod 1, 336. Slide rod 2, 4. Tray, 41. Pull ring 1, 42. Pull ring 2. DETAILED DESCRIPTION

[0023] To make the purpose, advantages, and technical solutions of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0025] according to Figure 1-5, this embodiment provides a heat treatment device for manufacturing high-strength bolts, including a heating box 1, the heating box 1 includes a box body 2 and a box cover 3, a heating plate 21 is fixedly installed in the box body 2, and the air in the box body 2 is heated by the heating plate 21, a hydraulic push rod 22 is fixedly installed on the box body 2, and the output end of the hydraulic push rod 22 is fixedly connected to the box cover 3, an exhaust fan 31 is fixedly installed on the box body 2, and the input end of the exhaust fan 31 is connected to the inside of the box body 2, and the output end of the exhaust fan 31 is fixedly installed with a pipe 1 311, and the pipe 1 311 is connected to the front end surface of the box body 2, and the input end of the exhaust fan 31 is fixedly installed A pipe 2 312 is installed, one end of which is fixedly connected to a three-way valve 32, which is fixedly connected to the box body 2. A pipe 3 322 is also fixedly installed on the three-way valve 32, and the pipe 3 322 is connected through the left end face of the box body 2. The air in the box body 2 is continuously extracted by the exhaust fan 31 and re-injected into the box body 2 through the three-way valve 32, which can quickly heat the air in the box body and improve the heat treatment efficiency of the bolts. A bracket 1 33 is fixedly installed on the box cover 3, and a tray 4 is slidably connected to the bracket 33. By setting the bracket 1 33, the tray 4 can be lifted by the hydraulic push rod 22 together with the box cover.

[0026] The box body 2 is provided with an observation window 11 for conveniently observing the heat treatment of the bolts in the box body 2 .

[0027] The three-way valve 32 is also fixedly mounted with an exhaust pipe 321 , the outlet of which is downward to prevent burns caused by flat-blown hot air, while also facilitating the rapid discharge of hot air from the box.

[0028] A second bracket 36 is fixedly mounted on the box body 2 .

[0029] The second bracket 36 is provided with a smoothing device 30, which smoothes the bolts stacked on the tray 4 to prevent the bolts from stacking, resulting in insufficient heating time for the stacked internal bolts.

[0030] The smoothing device 30 includes a motor 34, a bidirectional threaded rod 35, a slide rod 1 335, and a slide rod 2 336. The motor 1 34 is fixedly connected to the bracket 2 36. The output end of the motor 1 34 is fixedly mounted with the bidirectional threaded rod 35. The bidirectional threaded rod 35 is rotatably connected to the bracket 2 36. The slide rod 1 335 and the slide rod 2 336 are both threadedly connected to the bidirectional threaded rod 35. The slide rod 1 335 and the slide rod 2 336 are both slidably connected to the bracket 2 36.

[0031] The slide bar 1 335 and the slide bar 2 336 are both provided with a brush 333 . The brush 333 is a hard brush. If the brush 333 is too soft, the bolt cannot be effectively smoothed.

[0032] A pull ring 1 41 is fixedly installed on the front end surface of the tray 4, and a plurality of pull rings 2 42 are fixedly installed on the upper end surface of the tray 4. The pull ring 1 41 facilitates the lateral pulling and movement of the tray 41, and the pull ring 2 42 facilitates the transportation of the tray.

[0033] The specific operation is as follows: the box cover 3 is lifted to a certain height by the hydraulic push rod 22, the tray 4 with bolts is placed on the bracket 1 33, the motor 1 34 is started, and the bolts contained in the tray 4 are smoothed. After smoothing, the slide bar 1 335 and the slide bar 2 336 are reset to prevent affecting the tray 4 from entering the box body 2, and the height of the box cover 3 is lowered so that the box body 2 and the box cover 3 are sealed and fitted together. The heating plate 21 is started to heat the air in the box body 2, and the bolts are heated by the hot air. The exhaust fan 31 is started to let the hot air re-enter the box body 2 from the left side of the box body through the pipe 1 311, the pipe 2 312, and the pipe 3 322, so that the hot air in the box body 2 can fill the entire box body 2 as quickly as possible, thereby improving the heat treatment efficiency of the bolts. When the bolts are heat treated, the heat treatment status of the bolts can be observed through the observation window 11. After the heat treatment of the bolts is completed, the exhaust fan 31 is started, and the three-way valve 32 is adjusted to discharge the hot air in the box body through the exhaust pipe 321.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A heat treatment device for manufacturing high-strength bolts, comprising a heating box (1), wherein the heating box (1) comprises a box body (2) and a box cover (3), and is characterized in that: A heating plate (21) is fixedly installed in the box (2), a hydraulic push rod (22) is fixedly installed on the box (2), the output end of the hydraulic push rod (22) is fixedly connected to the box cover (3), an exhaust fan (31) is fixedly installed on the box (2), the input end of the exhaust fan (31) is connected to the inside of the box (2), and a pipe 1 (311) is fixedly installed on the output end of the exhaust fan (31), and the pipe 1 (311) is connected to the front end surface of the box (2). A second pipe (312) is fixedly mounted on the input end of the exhaust fan (31), one end of the second pipe (312) is fixedly connected to a three-way valve (32), the three-way valve (32) is fixedly connected to the box body (2), a third pipe (322) is also fixedly mounted on the three-way valve (32), the third pipe (322) is connected through the left end face of the box body (2), a bracket (33) is fixedly mounted on the box cover (3), and a tray (4) is slidably connected to the bracket (33).

2. A heat treatment device for manufacturing high-strength bolts according to claim 1, characterized in that: An observation window (11) is provided on the box body (2).

3. The heat treatment device for manufacturing high-strength bolts according to claim 1, characterized in that: An exhaust pipe (321) is also fixedly mounted on the three-way valve (32).

4. The heat treatment device for manufacturing high-strength bolts according to claim 1, characterized in that: A second bracket (36) is fixedly mounted on the box body (2).

5. The heat treatment device for manufacturing high-strength bolts according to claim 4, characterized in that: The second bracket (36) is provided with a smoothing device (30).

6. A heat treatment device for manufacturing high-strength bolts according to claim 5, characterized in that: The smoothing device (30) includes a motor (34), a bidirectional threaded rod (35), a slide rod (335), and a slide rod (336). The motor (34) is fixedly connected to the bracket (36). The output end of the motor (34) is fixedly mounted with the bidirectional threaded rod (35). The bidirectional threaded rod (35) is rotatably connected to the bracket (36). The slide rod (335) and the slide rod (336) are both threadedly connected to the bidirectional threaded rod (35). The slide rod (335) and the slide rod (336) are both slidably connected to the bracket (36).

7. A heat treatment device for manufacturing high-strength bolts according to claim 6, characterized in that: The first slide bar (335) and the second slide bar (336) are both provided with brushes (333).

8. The heat treatment device for manufacturing high-strength bolts according to claim 1, characterized in that: A pull ring 1 (41) is fixedly mounted on the front end surface of the tray (4), and a plurality of pull rings 2 (42) are fixedly mounted on the upper end surface of the tray (4).

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