Piston rod heat treatment furnace

Abstract

The utility model discloses a piston rod heat treatment furnace which comprises a heat treatment box, a support is arranged at the bottom of the heat treatment box, a heat treatment cavity is formed in the heat treatment box, heating rods are installed on the edge of the heat treatment cavity, and an electric control box is installed on one side of the heat treatment box. A lock catch is mounted on one side of the front surface of the heat treatment box, and a closed heating cover plate is mounted on the other side of the front surface of the heat treatment box; according to the buffer elastic seat with the buffer structure, when the device is used for carrying out heat treatment on the piston rod, the impact force generated by collision can be reduced through the action of the buffer elastic seat in the process of opening and closing the closed heating cover plate and impacting the heat treatment box during collision; and meanwhile, the sound generated by collision can be reduced, the situation that a heating rod installed in the closed heating cover plate is loosened due to collision is avoided, the stability and practicability of the structure are better guaranteed, and therefore the piston rod can be better subjected to heat treatment.

Description

Technical Field

[0001] This utility model belongs to the field of heat treatment furnace technology, and specifically relates to a piston rod heat treatment furnace. Background Technology

[0002] A piston rod heat treatment furnace is a device used to heat treat piston rods. By heating the piston rod to a specific temperature and holding it for a period of time, its physical and chemical properties are changed, thereby improving its mechanical properties and wear resistance. The piston rod heat treatment furnace transfers heat to the piston rod through thermal radiation and thermal convection, gradually raising its temperature to the required temperature. The piston rod is kept at a certain temperature and time in the furnace so that its internal structure changes and achieves the desired mechanical properties.

[0003] Patent application number 201020284655.3 discloses a piston rod heat treatment furnace. This application designs a waste gas collection device and a waste gas treatment system, which can effectively collect harmful waste gases generated in processes such as preheating, nitriding, oxidation, and drying. After treatment by the waste gas treatment system, the gases are discharged in compliance with standards, thus avoiding harm to the human body and preventing air pollution. In conjunction with the above application and compared with existing heat treatment furnaces, when using existing heat treatment furnaces to process piston rods, heating rods for heat treatment are installed on the sealed heating cover plate of the furnace. During use, the opening and closing of the sealed heating cover plate will collide with the heat treatment chamber. The impact may cause the heating rods for heat treatment to loosen and also produce a certain amount of noise, thus affecting the practicality of the heat treatment furnace. To address this issue, we propose a piston rod heat treatment furnace. Utility Model Content

[0004] The purpose of this utility model is to provide a piston rod heat treatment furnace to solve the problem mentioned in the background art. Compared with existing heat treatment furnaces, when piston rods are processed in existing heat treatment furnaces, the heating rods for heat treatment are provided on the sealed heating cover plate of the furnace. During use, the opening and closing of the sealed heating cover plate will collide with the heat treatment box. The impact may cause the heating rods for heat treatment to loosen, and at the same time, it will also produce a certain noise, thus affecting the practicality of the heat treatment furnace.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a piston rod heat treatment furnace, including a heat treatment box, a support at the bottom of the heat treatment box, a heat treatment cavity inside the heat treatment box, a heating rod installed at the edge of the heat treatment cavity, an electrical control box installed on one side of the heat treatment box, a latch installed on one side of the front surface of the heat treatment box, a sealed heating cover plate installed on the other side of the front surface of the heat treatment box, a heating rod of the same structure installed inside the sealed heating cover plate, two buffer spring seats symmetrically installed at both ends of the front surface of the heat treatment box, buffer protrusions installed on the front surface of the buffer spring seats, buffer inclined blocks provided at both ends of the inner side of the buffer spring seats, a buffer spring provided between one end of the buffer inclined block and the buffer spring seat, and a limit guide groove provided on one side of the buffer inclined block, and a limit guide rail provided at the inner edge of the buffer spring seat.

[0006] Preferably, the buffer block is moved and limited by the limiting guide slide rail and the limiting guide groove, and the buffer block compresses the buffer spring when it moves.

[0007] Preferably, the buffer ramp has an inclined surface, and the inner side of the buffer protrusion has an inclined surface of the same angle. When the buffer protrusion extends or retracts, it pushes the buffer ramp by squeezing through the corresponding inclined surface.

[0008] Preferably, a heat-resistant pad is installed on the front surface of the buffer bump.

[0009] Preferably, the front surface of the sealed heating cover is provided with buffer grooves at both ends, and the sealed heating cover is aligned with the buffer spring seat through the buffer grooves when closed.

[0010] Preferably, a protective mesh plate is installed on the inner surface of the sealed heating cover plate, the inner side of the protective mesh plate is provided with a mesh surface, and a limit locking block is installed on the top of the protective mesh plate.

[0011] Preferably, the inner top of the sealed heating cover is provided with a slot, and a pin is installed in the slot.

[0012] Preferably, the sealed heating cover plate and the protective mesh plate are installed together by a slot and a limiting snap block, and the slot and the limiting snap block are fixed together by a pin.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) By setting the buffer spring seat with buffer structure, when the piston rod is heat treated by the device, the buffer spring seat can reduce the impact force generated by the collision during the opening and closing of the sealed heating cover and the collision with the heat treatment box. At the same time, it can reduce the noise generated by the collision and prevent the heating rod installed in the sealed heating cover from becoming loose due to the collision. This better ensures the stability and practicality of the structure, and thus better heat treats the piston rod.

[0015] (2) In addition, a protective mesh plate is installed on the sealed heating cover plate of the structure for protection. When the sealed heating cover plate is opened, the heating rod installed on the inside of the sealed heating cover plate is easily bumped and damaged, which affects the use and safety of the device. With the protective mesh plate, the heating rod can be protected when the sealed heating cover plate is opened, thereby avoiding bumping and damage. Furthermore, the protective mesh plate is installed by snap-fit, which facilitates disassembly and maintenance of the heating rod, thereby improving the practicality of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the buffer spring base of this utility model;

[0018] Figure 3 This is a schematic diagram of the installation structure of the protective mesh panel of this utility model;

[0019] In the diagram: 100, heat treatment chamber; 101, electrical control box; 102, heat treatment cavity; 103, heating rod; 104, sealed heating cover; 105, bracket; 106, latch; 200, buffer spring seat; 201, buffer protrusion; 202, buffer inclined block; 203, buffer spring; 204, limit guide slide rail; 205, limit guide groove; 206, heat-resistant gasket; 300, protective mesh plate; 301, slot; 302, limit locking block; 303, pin. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Please see Figure 1 , Figure 2 and Figure 3 This utility model provides a technical solution: Piston rod heat treatment furnaces are widely used in metal processing, manufacturing, aerospace and other fields, playing an important role in the manufacture of piston rods for equipment such as hydraulic cylinders, internal combustion engines, and compressors. Through heat treatment, the mechanical properties and wear resistance of piston rods can be improved, their service life can be extended, and the reliability and safety of equipment can be improved. A piston rod heat treatment furnace includes a heat treatment box 100, a bracket 105 welded and fixed to the bottom of the heat treatment box 100, a heat treatment cavity 102 opened inside the heat treatment box 100, a heating rod 103 fixedly installed at the edge of the heat treatment cavity 102, an electrical control box 101 fixedly installed on one side of the heat treatment box 100, an integrated latch 106 provided on one side of the front surface of the heat treatment box 100, and a rotatable and closable sealed heating cover 10 installed on the other side of the front surface of the heat treatment box 100. 4. A heating rod 103 with the same structure is installed inside the sealed heating cover 104. Two buffer spring seats 200 are symmetrically installed at both ends of the front surface of the heat treatment chamber 100. Buffer protrusions 201 are installed on the front surface of the buffer spring seats 200. Buffer inclined blocks 202 are provided at both ends of the inner side of the buffer spring seats 200. A buffer spring 203 is provided between one end of the buffer inclined block 202 and the buffer spring seat 200. A limit guide groove 205 is opened on one side of the buffer inclined block 202. A limit guide rail 204 is provided at the inner edge of the buffer spring seat 200. When processing the piston rod using the heat treatment furnace of this application, the sealed heating cover 104 is opened by the latch 106, and then the piston rod to be processed is placed into the heat treatment chamber 102 and the sealed heating cover 104 is closed. During the heat treatment process, the piston rod is heated by the heat generated by the heating rod 103.

[0023] Specifically, the buffer inclined block 202 is limited in movement by the limiting guide slide rail 204 and the limiting guide slide groove 205. When the buffer inclined block 202 moves, it compresses the buffer spring 203, ensuring the stability of the buffer inclined block 202 during movement and allowing for better compression of the buffer spring 203. The buffer inclined block 202 has an inclined surface, and the inner side of the buffer protrusion 201 has an inclined surface of the same angle. When the buffer protrusion 201 extends or retracts, it compresses and pushes the buffer inclined block 202 through the corresponding inclined surface. A heat-resistant gasket 206 is installed on the front surface of the heat treatment chamber 100 to provide better cushioning. Buffer grooves are provided at both ends of the front surface of the sealed heating cover 104. When the sealed heating cover 104 is closed, it aligns with the buffer spring seat 200 through the buffer grooves. During heat treatment using this device, when the sealed heating cover 104 rotates open and closes, its inner surface will impact the front surface of the heat treatment chamber 100. This impact can easily damage the components installed inside the sealed heating cover 104. The heating rod 103 on the side is loose. Through the buffer spring seat 200 provided on the front surface of the heat treatment chamber 100, when the sealed heating cover 104 is rotated and closed, the buffer grooves at both ends of the sealed heating cover 104 align with the buffer spring seat 200 on the front surface of the heat treatment chamber 100. Upon contact, the buffer protrusion 201 installed inside the buffer spring seat 200 will contact the sealed heating cover 104 in advance. This contact will push the buffer protrusion 201 back into the buffer spring seat 200. When the buffer spring seat 200 is... When the buffer spring seat 200 is pushed back into the interior, it will compress the buffer inclined block 202. When the buffer inclined block 202 is pushed, it moves to both sides through the limiting guide slide rail 204 and the limiting guide slide groove 205. At the same time, the movement of the buffer inclined block 202 will compress the buffer spring 203. The buffer spring 203 deforms under force to generate a buffering force, thereby reducing the impact force when the sealed heating cover 104 is closed, preventing the heating rod 103 installed when the sealed heating cover 104 is closed from shaking and loosening, thus improving the stability of the device.

[0024] Example 2

[0025] Please see Figure 1 , Figure 2 and Figure 3This utility model provides a technical solution: a piston rod heat treatment furnace, wherein a protective mesh plate 300 is installed on the inner surface of a sealed heating cover plate 104, an integral mesh surface is provided on the inner side of the protective mesh plate 300, and an integral limiting and locking block 302 is provided on the top of the protective mesh plate 300. Specifically, a slot 301 is opened on the top inner side of the sealed heating cover plate 104, and a pin 303 is installed in the slot 301. There is communication between the sealed heating cover plate 104 and the protective mesh plate 300. The protective mesh plate 300 is installed through the slot 301 and the limiting snap-fit ​​block 302, and the slot 301 and the limiting snap-fit ​​block 302 are fixed together by the pin 303. The protective mesh plate 300 is aligned and engaged with the limiting snap-fit ​​block 302 through the slot 301 and fixed by the pin 303. The installed protective mesh plate 300 can prevent the heating rod 103 from being bumped and damaged when the sealed heating cover 104 is opened, thereby improving the safety of the structure and making it better suited for heat treatment.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A piston rod heat treatment furnace, comprising a heat treatment chamber (100), a support (105) provided at the bottom of the heat treatment chamber (100), a heat treatment cavity (102) opened inside the heat treatment chamber (100), a heating rod (103) installed at the edge of the heat treatment cavity (102), an electrical control box (101) installed on one side of the heat treatment chamber (100), a latch (106) installed on one side of the front surface of the heat treatment chamber (100), a sealed heating cover plate (104) installed on the other side of the front surface of the heat treatment chamber (100), and a heating rod (103) of the same structure installed inside the sealed heating cover plate (104), characterized in that: Two buffer spring seats (200) are symmetrically installed at both ends of the front surface of the heat treatment box (100). Buffer protrusions (201) are installed on the front surface of the buffer spring seats (200). Buffer inclined blocks (202) are provided at both ends of the inner side of the buffer spring seats (200). A buffer spring (203) is provided between one end of the buffer inclined block (202) and the buffer spring seat (200). A limit guide groove (205) is opened on one side of the buffer inclined block (202). A limit guide rail (204) is provided at the inner edge of the buffer spring seat (200).

2. The piston rod heat treatment furnace according to claim 1, characterized in that: The buffer block (202) is limited in movement by the limiting guide slide rail (204) and the limiting guide groove (205), and the buffer block (202) compresses the buffer spring (203) when it moves.

3. The piston rod heat treatment furnace according to claim 1, characterized in that: The buffer ramp (202) has an inclined surface, and the inner side of the buffer protrusion (201) has an inclined surface of the same angle. When the buffer protrusion (201) extends or retracts, it pushes the buffer ramp (202) by squeezing through the corresponding inclined surface.

4. The piston rod heat treatment furnace according to claim 1, characterized in that: The front surface of the buffer bump (201) is fitted with a heat-resistant pad (206).

5. A piston rod heat treatment furnace according to claim 1, characterized in that: The front surface of the sealed heating cover (104) is provided with buffer grooves at both ends. When the sealed heating cover (104) is closed, it is aligned with the buffer spring seat (200) through the buffer grooves.

6. A piston rod heat treatment furnace according to claim 1, characterized in that: The inner surface of the sealed heating cover (104) is equipped with a protective mesh plate (300), the inner side of the protective mesh plate (300) is provided with a mesh surface, and the top of the protective mesh plate (300) is equipped with a limit locking block (302).

7. A piston rod heat treatment furnace according to claim 6, characterized in that: The inner top of the sealed heating cover (104) is provided with a slot (301), and a pin (303) is installed in the slot (301).

8. A piston rod heat treatment furnace according to claim 7, characterized in that: The sealed heating cover plate (104) and the protective mesh plate (300) are installed through a slot (301) and a limiting snap block (302), and the slot (301) and the limiting snap block (302) are fixed together by a pin (303).

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