Heat treatment furnace for bearing

Abstract

The heat treatment furnace comprises a furnace body and a furnace cover, a fixed plate is slidably connected to the inner side of the furnace body, a plurality of mounting shafts are fixedly connected to the front end of the fixed plate, a movable plate is arranged at the front end of the fixed plate, sliding holes matched with the mounting shafts in the axial direction are formed in the movable plate, and the mounting shafts are slidably connected to the inner sides of the sliding holes. A fixed shaft is fixedly connected to the middle of the front end of the fixed plate, a screw is fixedly connected to the front end of the fixed shaft, a through hole is formed in the middle of the movable plate, the screw is slidably connected to the inner side of the through hole, a limiting shaft is arranged at the front end of the movable plate, and the limiting shaft is in threaded connection to the outer side of the screw. The movable plate slides into the outer side of the mounting shaft, the movable plate and the fixed plate are fixedly connected together through the limiting shaft, and the movable plate positions the outer ring of the bearing, so that the accumulation phenomenon of the bearing can be avoided, the bearing is uniformly heated, and the heat treatment effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of heat treatment processing, in particular to a heat treatment furnace for bearings. Background Art

[0002] Some existing heat treatment furnaces for bearing production only place the bearings into the heat treatment furnace when heat treating the bearings, which will cause bearing accumulation. Due to the uneven distribution of the bearings in the heat treatment furnace, the bearings are heated unevenly, resulting in poor heat treatment effect.

[0003] For example: The utility model patent with application number CN201821846863.0 discloses a heat treatment furnace that is convenient for clamping heat-treated objects, including a base, a fixed block, a bolt and a flange. The base is provided with a heat treatment furnace body, the fixed block is arranged in the heat treatment furnace body, the fixed block is provided with a bracket, the bolt passes through the second slideway and is connected to the base, the flange is arranged on the right end face of the fixed block, the left side of the hook ring is provided with a first moving block, the second moving block is arranged in the flange, and the second moving block is arranged on the left side of the first through hole, the lower end of the second moving block passes through the lower end face of the flange and the groove, and the lower end of the second moving block is connected to the lower end face of the flange through a compression spring. When the above technical solution is used, the hook ring is pulled with a hook to make the first moving block move upward against the second moving block, so that the lower end of the second moving block leaves the groove, and the fixed block can be pulled at this time to facilitate pulling the fixed block out of the heat treatment furnace body. However, it is not suitable for clamping bearings. Summary of the invention

[0004] The utility model aims to solve the problems existing in the prior art and provides a heat treatment furnace for bearings, which can avoid the accumulation of bearings, heat the bearings evenly and achieve good heat treatment effect.

[0005] The utility model adopts a technical solution to solve its technical problems: the heat treatment furnace for bearings comprises a furnace body and a furnace cover, the inner side of the furnace body is slidably connected with a fixed plate, the front end of the fixed plate is fixedly connected with a plurality of installation shafts, a movable plate is provided at the front end of the fixed plate, a sliding hole adapted to the installation axis is opened on the movable plate, the installation shaft is slidably connected to the inner side of the sliding hole, a fixed shaft is fixedly connected to the middle of the front end of the fixed plate, a screw is fixedly connected to the front end of the fixed shaft, a through hole is opened in the middle of the movable plate, the screw is slidably connected to the inner side of the through hole, a limiting shaft is provided at the front end of the movable plate, the limiting shaft is threadedly connected to the outer side of the screw, a plurality of bearing outer rings are sleeved into the outer side of the installation shaft, after the bearing outer ring is installed, the movable plate is slid into the outer side of the installation shaft, the movable plate and the fixed plate are fixedly connected together by the limiting shaft, the movable plate positions the bearing outer ring, the bearing can be prevented from being piled up, the bearing is heated evenly, and the heat treatment effect is good.

[0006] In order to further improve it, fixed rods are fixedly connected to the left and right ends of the lower side of the fixed plate, a sliding groove is opened at the front end of the fixed rod, the movable plate is slidably connected to the inner side of the sliding groove, the lower end of the fixed rod is fixedly connected to a sliding block, guide rods are installed at the left and right ends of the inner side of the furnace body, a guide groove is opened at the upper end of the guide rod, and the sliding block is slidably connected to the inner side of the guide groove, so that the movement of the fixed plate is more convenient, the fixed plate is moved out, and the bearing is installed, which is more convenient.

[0007] For further improvement, a support plate is provided at the front end of the furnace cover, and sliding grooves matching the guide grooves are opened at both left and right ends of the support plate, and the sliding blocks are slidably connected to the inner side of the sliding grooves, making the movement of the fixed plate more convenient.

[0008] For further improvement, the distance between the guide rod and the support plate is smaller than the length of the sliding block, and the sliding block can move in the guide groove and the inner side of the sliding groove at the same time, so that the movement effect of the sliding block is better.

[0009] For further improvement, an adjustment groove is opened on the outside of the fixed rod, and the left and right ends of the movable plate are fixedly connected with rotating shafts, which are movably connected to the inner side of the adjustment groove. The limit shaft is removed, and the movable plate is moved forward so that the sliding hole is away from the installation shaft. The movable plate is rotated by the rotating shaft so that the movable plate is laid flat. At this time, it is more convenient to remove or install the outer ring of the bearing.

[0010] For further improvement, a handle is fixedly connected to the outer side of the limit shaft, making it more convenient to rotate the limit shaft.

[0011] For further improvement, a connecting rod is fixedly connected between the fixing rods, and a pull handle is fixedly connected to the front end of the connecting rod, so that pulling the fixing plate is more convenient.

[0012] As a further improvement, a handle is fixedly connected to the front end of the movable plate, making it more convenient to rotate the movable plate.

[0013] The beneficial effect of the utility model is that: a plurality of bearing outer rings are inserted into the outside of the installation shaft. After the bearing outer rings are installed, the movable plate is slid into the outside of the installation shaft, and the movable plate and the fixed plate are fixedly connected together by the limiting shaft. The movable plate positions the bearing outer ring, which can avoid the accumulation of the bearing, and the bearing is evenly heated, and the heat treatment effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure inside the furnace body of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the fixing plate of the utility model;

[0017] Figure 4It is a structural schematic diagram of the movable plate of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the limit shaft of the utility model.

[0019] Explanation of the accompanying drawings: 1. furnace body; 11. furnace cover; 12. guide rod; 121. guide groove; 2. fixed plate; 21. mounting shaft; 22. fixed shaft; 221. screw rod; 23. fixed rod; 231. slide groove; 232. adjustment groove; 233. sliding block; 24. connecting rod; 241. handle; 3. movable plate; 31. sliding hole; 32. through hole; 33. limiting shaft; 331. turning handle; 34. handle; 35. rotating shaft; 4. support plate; 41. sliding groove. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-5 The utility model is further described as follows:

[0021] like Figure 1-Figure 5 As shown: In this embodiment, a heat treatment furnace for bearings includes a furnace body 1 and a furnace cover 11. A fixed plate 2 is slidably connected to the inner side of the furnace body 1. Fixed rods 23 are fixedly connected to the left and right ends of the lower side of the fixed plate 2. A sliding block 233 is fixedly connected to the lower end of the fixed rod 23. Guide rods 12 are installed on the left and right ends of the inner side of the furnace body 1. A guide groove 121 is opened at the upper end of the guide rod 12. The sliding block 233 is slidably connected to the inner side of the guide groove 121. A support plate 4 is provided at the front end of the furnace cover 11. The left and right ends of the support plate 4 are opened with sliding grooves 41 that are compatible with the guide groove 121. The sliding block 233 is slidably connected to the inner side of the sliding groove 41. The front end of the fixed rod 23 is opened with a sliding groove 231. The inner side of the sliding groove 231 slides A movable plate 3 is connected, an adjusting groove 232 is opened on the outer side of the fixed rod 23, and rotating shafts 35 are fixedly connected at both ends of the movable plate 3. The rotating shaft 35 can be slidably connected and rotatably connected to the inner side of the adjusting groove 232. A plurality of mounting shafts 21 are fixedly connected to the front end of the fixed plate 2, and a sliding hole 31 adapted to the mounting shaft 21 is opened on the movable plate 3. The mounting shaft 21 is slidably connected to the inner side of the sliding hole 31. A fixed shaft 22 is fixedly connected to the middle of the front end of the fixed plate 2, and a screw 221 is fixedly connected to the front end of the fixed shaft 22. A through hole 32 is opened in the middle of the movable plate 3, and the screw 221 is slidably connected to the inner side of the through hole 32. A limiting shaft 33 is provided at the front end of the movable plate 3, and the limiting shaft 33 is threadedly connected to the outer side of the screw 221.

[0022] When the utility model is in use: open the furnace cover 11, pull the fixed plate 2 out of the furnace body 1 through the pull handle 241, rotate the limit shaft 33 to make the limit shaft 33 away from the screw 221, move the movable plate 3 forward to make the sliding hole 31 away from the installation shaft 21, rotate the movable plate 3 through the rotating shaft 35 to make the movable plate 3 flat, insert several bearing outer rings into the outside of the installation shaft 21, after the bearing outer rings are installed, rotate the movable plate 3 through the rotating shaft 35 to make the movable plate 3 vertical, slide the movable plate 3 to the outside of the installation shaft 21, thread the limit shaft 33 to the outside of the screw 221, and through the joint action of the limit shaft 33 and the installed bearing outer ring, fix the movable plate 3 and the fixed plate 2 together, push the fixed plate 2 into the inside of the furnace body 1, cover the furnace cover 11, and perform heat treatment.

[0023] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A heat treatment furnace for bearings, comprising a furnace body (1) and a furnace cover (11), characterized in that: A fixed plate (2) is slidably connected to the inner side of the furnace body (1); a plurality of mounting shafts (21) are fixedly connected to the front end of the fixed plate (2); a movable plate (3) is provided at the front end of the fixed plate (2); a sliding hole (31) adapted to the mounting shaft (21) is provided on the movable plate (3); the mounting shaft (21) is slidably connected to the inner side of the sliding hole (31); a fixed shaft (22) is fixedly connected to the middle of the front end of the fixed plate (2); a screw (221) is fixedly connected to the front end of the fixed shaft (22); a through hole (32) is provided in the middle of the movable plate (3); the screw (221) is slidably connected to the inner side of the through hole (32); a limiting shaft (33) is provided at the front end of the movable plate (3); the limiting shaft (33) is threadedly connected to the outer side of the screw (221).

2. A heat treatment furnace for bearings according to claim 1, characterized in that: The fixed plate (2) is fixedly connected to fixed rods (23) at both left and right ends of the lower side, a slide groove (231) is formed at the front end of the fixed rod (23), the movable plate (3) is slidably connected to the inner side of the slide groove (231), the lower end of the fixed rod (23) is fixedly connected to a slide block (233), the inner side of the furnace body (1) is provided with guide rods (12) at both left and right ends, the upper end of the guide rod (12) is provided with a guide groove (121), and the slide block (233) is slidably connected to the inner side of the guide groove (121).

3. A heat treatment furnace for bearings according to claim 2, characterized in that: The front end of the furnace cover (11) is provided with a support plate (4), and both left and right ends of the support plate (4) are provided with sliding grooves (41) adapted to the guide grooves (121), and the sliding blocks (233) are slidably connected to the inner sides of the sliding grooves (41).

4. A heat treatment furnace for bearings according to claim 3, characterized in that: The distance between the guide rod (12) and the support plate (4) is smaller than the length of the sliding block (233).

5. The heat treatment furnace for bearings according to claim 2, characterized in that: The fixed rod (23) is provided with an adjustment slot (232) on the outside, and the left and right ends of the movable plate (3) are fixedly connected with rotating shafts (35), and the rotating shafts (35) are movably connected to the inside of the adjustment slot (232).

6. The heat treatment furnace for bearings according to claim 1, characterized in that: The outer side of the limiting shaft (33) is fixedly connected with a turning handle (331).

7. The heat treatment furnace for bearings according to claim 2, characterized in that: A connecting rod (24) is fixedly connected between the fixing rods (23), and a pull handle (241) is fixedly connected to the front end of the connecting rod (24).

8. A heat treatment furnace for bearings according to claim 1 or 5, characterized in that: A handle (34) is fixedly connected to the front end of the movable plate (3).

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