Shaft part heat treatment device

Abstract

The utility model provides a kind of shaft parts heat treatment device, including shaft piece, still include: heating cylinder, the heating cylinder is clamped with top plate, the top plate is peripherally arrayed and is provided with work station table, heating flow pipeline is provided on the heating cylinder;Drainage pipe, the drainage pipe is set on the top plate, the drainage pipe is connected with the heating flow pipeline;Clamping unit, the clamping unit is set on the work station table, the shaft parts heat treatment device provided by the utility model, when heat treatment, shaft parts are fixed to between two clamping frames one by one, then shaft parts are placed at the axis of flow guide cylinder by clamping unit, and heat flow is introduced into flow guide cylinder through heating flow pipeline to heat multiple shaft parts, part is independently clamped and heated at the axis of flow guide cylinder, to improve the uniformity of heating, reduce the phenomenon that overheating or heating time is too long, improve the heating effect of shaft parts.

Description

Technical Field

[0001] This utility model relates to the field of shaft parts manufacturing technology, and more specifically to a heat treatment device for shaft parts. Background Technology

[0002] In mechanical transmission, shafts mainly bear the functions of transmitting torque and supporting the rotation of rotating parts. To ensure the comprehensive performance and strength of shafts, heat treatment is required during their production and processing, thereby enhancing their service life and mechanical properties in complex environments.

[0003] However, during the heat treatment process, shaft parts are often stacked in the heating furnace for heating. Because the parts are in contact with each other, the heat flow is in contact with the external shaft parts beforehand, which can lead to uneven heating. This requires extending the heating time. If the heating time difference is too large, the external shaft parts will be heated for too long, resulting in decarburization on the surface, insufficient effective hardened layer depth, reduced hardness, and affecting the heat treatment effect of the shaft parts. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies and to solve the problem of uneven heating that occurs when stacking and heat-treating shaft-type parts.

[0005] To achieve the above objectives, this utility model can be implemented through the following technical solution: a heat treatment device for shaft parts, including a shaft, and further comprising:

[0006] A heating cylinder, on which a top plate is snapped, and workstations are arranged in a circumferential array on the top plate, and a heat flow pipe is provided on the heating cylinder;

[0007] A drainage pipe is disposed on the top plate and is connected to the hot flow pipe;

[0008] A clamping unit is disposed on the worktable. The clamping unit includes a top plate and support rods disposed on the top plate. The support rods are arranged in a linear array with clamping frames. The shaft is fixed to the axis of the drainage tube by the clamping frames.

[0009] In this embodiment of the utility model, a top block is slidably provided on one side of the clamping frame, and a spring is provided between the top block and the clamping frame;

[0010] A second inclined block is slidably provided on the other side of the clamping frame, and a screw is threadedly connected to the clamping frame. One end of the screw is provided with a first inclined block that abuts against the second inclined block.

[0011] In this embodiment of the utility model, a groove is provided on the second inclined block, and the first inclined block is engaged in the groove.

[0012] In this embodiment of the utility model, both the top block and the second inclined block are provided with a conical head.

[0013] In this embodiment of the utility model, the clamping frame has a fixing hole that cooperates with the support rod, and a conical block is engaged at one end of the fixing hole. The conical block has blades arranged in a circumferential array.

[0014] The clamping frame is threaded with a locking ring, and the locking ring is provided with an inclined portion that abuts against the blade.

[0015] In this embodiment of the utility model, a chassis is provided on the guide tube, and a drain pipe connected to the hot flow pipe is snapped onto the chassis;

[0016] The chassis is provided with a guide plate, and the guide plate is provided with an arc-shaped part, which is located at the air inlet of the chassis.

[0017] In this embodiment of the utility model, a temperature measuring instrument is provided on the clamping frame, and a pressure relief pipe is provided on one side of the temperature measuring instrument.

[0018] In this embodiment of the utility model, the clamping frame is provided with a hanging bracket.

[0019] In this embodiment of the utility model, a sealing element is provided between the top plate and the top plate.

[0020] In this embodiment of the utility model, a fixing plate that cooperates with the guide tube is provided inside the heating cylinder.

[0021] Compared with the prior art, the advantages of this application are as follows: During heat treatment, shaft parts are fixed one by one between two clamping frames, and then the shaft parts are placed at the axis of the guide tube through the clamping unit. The heat flow is introduced into the guide tube through the heat flow pipe to heat multiple shaft parts. The parts are independently clamped and heated at the axis of the guide tube, thereby improving the uniformity of heating, reducing the occurrence of overheating or excessive heating time, and improving the heating effect on shaft parts. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure;

[0023] Figure 2 This is a schematic diagram of the internal structure of the heating cylinder and the guide cylinder in partial cross-section;

[0024] Figure 3 This is a schematic diagram of the structure where the shaft is fixed to the clamping unit;

[0025] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0026] Figure 5 It is a plan view showing the overall partial section.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Heating cylinder; 11. Hot flow pipe; 13. Fixed plate; 14. Drain pipe; 2. Top plate; 21. Workstation; 3. Clamping unit; 31. Clamping frame; 310. Fixed hole; 311. Top block; 312. Spring; 313. Cover plate; 314. First inclined block; 315. Screw; 316. Second inclined block; 317. Slide groove; 318. Locking ring; 3181. Inclined part; 319. Conical block; 3191. Blade; 32. Pressure relief pipe; 33. Thermometer; 34. Hanger; 35. Top plate; 36. Support block; 37. Support rod; 4. Shaft; 5. Guide cylinder; 51. Heating chamber; 52. Guide plate; 521. Arc-shaped part; 53. Base plate. Detailed Implementation

[0029] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0030] like Figure 1-5 As shown, a heat treatment apparatus for shaft-type parts includes a shaft 4, and further includes:

[0031] Heating cylinder 1, top plate 2 is attached to heating cylinder 1, workstations 21 are arranged in a circular array on top plate 2, and hot flow pipes 11 are arranged on heating cylinder 1. The circular array is a uniform ring of multiple workstations 21 with top plate 2 as the axis, and at least four workstations 21 are arranged.

[0032] Drainage pipe 14 is installed on top plate 2 and is connected to hot flow pipe 11;

[0033] The clamping unit 3 is set on the worktable 21. The clamping unit 3 includes a top plate 35 and a support rod 37 set on the top plate 35. The support rod 37 is arranged in a linear array with clamping frames 31. The clamping frames 31 are arranged sequentially along the vertical direction of the support rod 37. The shaft 4 is fixed to the axis of the drainage pipe 14 through the clamping frames 31.

[0034] Specifically, shaft 4 is a blank for a shaft-type part. During heat treatment, shaft 4 is fixed between two clamping frames 31, and then clamping unit 3 is placed inside guide tube 5, so that shaft 4 is located at the axis of guide tube 5. At this time, top plate 35 is closed with top plate 2 to keep the heating chamber 51 of guide tube 5 sealed. Pressure and temperature control are performed on heating chamber 51 to ensure uniformity of shaft 4 during heating and improve heat treatment effect. Furthermore, such as Figure 5 As shown, the drain pipe 14 connects two guide tubes 5, and the drain pipe 14 has two sets of heat flow at different temperatures that can be introduced into the corresponding guide tubes, so as to heat the shaft parts 4 of different specifications at the same time.

[0035] As a further embodiment of this utility model, a top block 311 is slidably disposed on one side of the clamping frame 31, and a spring 312 is disposed between the top block 311 and the clamping frame 31. A second inclined block 316 is slidably disposed on the other side of the clamping frame 31. A screw 315 is threadedly connected to the clamping frame 31, and a first inclined block 314 is disposed at one end of the screw 315, which abuts against the second inclined block 316. During heat treatment, the shaft 4 is placed between the two clamping frames 31. At this time, the top block 311 is pushed by the spring 312. Apply a certain clamping force to the shaft 4 so that the shaft 4 is fixed between the top block 311 and the second inclined block 316. Then rotate the screw 315, which is threadedly connected to the cover plate 313, thereby pushing the first inclined block 314 to slide towards the inside of the clamping frame 31. Since the inclined surfaces of the first inclined block 314 and the second inclined block 316 are in contact, they push the second inclined block 316 to extend out of the clamping frame 31, thereby increasing the clamping force on the shaft 4 and fixing the shaft 4 to the axis of the guide tube 5.

[0036] As a further embodiment of this utility model, a groove 317 is provided on the second inclined block 316, and the first inclined block 314 is engaged in the groove 317. The groove 317 serves as a guide and support. A slider is fixedly connected to the first inclined block 314, and the slider is located in the groove 317. Under normal conditions, the second inclined block 316 is supported by the slider, and the extension length of the second inclined block 316 is limited.

[0037] As a further embodiment provided by this utility model, both the top block 311 and the second inclined block 316 are provided with tapered heads. The shaft 4 is a blank. Before heat treatment, positioning holes need to be drilled at both ends. The shaft 4 is fixed to the axis of the guide tube 5 by the abutment of the top block 311 and the second inclined block 316.

[0038] As a further embodiment of this utility model, the clamping frame 31 is provided with a fixing hole 310 that cooperates with the support rod 37. One end of the fixing hole 310 is engaged with a conical block 319. The conical block 319 is provided with blades 3191 arranged in a circumferential array. The clamping frame 31 is threadedly connected with a locking ring 318. The locking ring 318 is provided with an inclined portion 3181 that abuts against the blades 3191. When the locking ring 318 is rotated, the inclined portion 3181 on the locking ring 318 pushes the evenly distributed blades 3191 in the ring closer to the axis of the fixing hole 310. As the locking ring 318 threadedly moves closer to the clamping frame 31, the blades 3191 continuously come into contact with the support rod 37 until the clamping frame 31 is fixed to the support rod 37. Furthermore, the distance between the two clamping frames 31 can be adjusted to accommodate shafts 4 of different sizes.

[0039] As a further embodiment of this utility model, a base 53 is provided on the guide tube 5, and a guide pipe 14 connected to the hot flow pipe 11 is snapped onto the base 53. A guide plate 52 is provided on the base 53, and an arc-shaped portion 521 is provided on the guide plate 52. The arc-shaped portion 521 is located at the air inlet of the base 53. Figure 5 As shown, the hot flow enters the guide tube 5 along the hot flow pipe 11 and the guide pipe 14. At this time, the arc-shaped part 521 on the guide plate 52 blocks the flow direction of the air inlet of the chassis 53 so that the hot flow flows in accordance with the inner wall of the guide pipe, thereby avoiding the phenomenon of direct blowing at the shaft 4 at the air inlet, which would cause local overheating.

[0040] As a further embodiment of this utility model, a thermometer 33 is provided on the clamping frame 31, and a pressure relief pipe 32 is provided on one side of the thermometer 33. The thermometer 33 continuously monitors the temperature of the heating chamber 51 of the guide tube 5 to prevent overheating in the guide tube 5. A pressure gauge is connected to the pressure relief pipe 32 to control the pressure release in the guide tube 5 and ensure that the pressure in the guide tube 5 is kept within a suitable range.

[0041] As a further embodiment of this utility model, a hanging bracket 34 is provided on the clamping frame 31. The hanging bracket 34 can be externally connected to a hook so that the machine can be separated from the top plate 2 by the hook clamping unit 3.

[0042] As a further embodiment of this utility model, a sealing element is provided between the top plate 35 and the top plate 2. The sealing element can be a sealing ring, sealing plate, or sealing strip, etc., to improve the sealing performance between the top plate 35 and the top plate 2.

[0043] As a further embodiment of this utility model, the heating cylinder 1 is provided with a fixing plate 13 that cooperates with the guide cylinder 5. At least two sets of fixing plates 13 are provided to support the guide cylinder 5, improve the firmness of the guide cylinder 5, and ensure that the guide cylinder 5 and the clamping unit 3 are on the same axis, thereby improving the heat flow reception effect. Meanwhile, the guide cylinder 5 is welded to the top plate 2 by welding rod arc welding. Furthermore, the clamping unit 3 is provided with two sets of support blocks 36, and the support rod 37 is fixed between the two support blocks 36.

[0044] The above-described technical solution of this utility model addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. The parts not covered in this application's technical solution are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0045] The technical solutions in the above embodiments have clearly and completely described the content of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A heat treatment apparatus for shaft-type parts, comprising shaft components, characterized in that, Also includes: A heating cylinder, on which a top plate is snapped, and workstations are arranged in a circumferential array on the top plate, and a heat flow pipe is provided on the heating cylinder; A drainage pipe is disposed on the top plate and is connected to the hot flow pipe; A clamping unit is disposed on the worktable. The clamping unit includes a top plate and support rods disposed on the top plate. The support rods are arranged in a linear array with clamping frames. The shaft is fixed to the axis of the drainage tube by the clamping frames.

2. The heat treatment apparatus for shaft-type parts according to claim 1, characterized in that, A top block is slidably disposed on one side of the clamping frame, and a spring is disposed between the top block and the clamping frame; A second inclined block is slidably provided on the other side of the clamping frame, and a screw is threadedly connected to the clamping frame. One end of the screw is provided with a first inclined block that abuts against the second inclined block.

3. The heat treatment apparatus for shaft-type parts according to claim 2, characterized in that, The second inclined block has a groove, and the first inclined block is engaged in the groove.

4. The heat treatment apparatus for shaft-type parts according to claim 2, characterized in that, Both the top block and the second inclined block are provided with conical heads.

5. The heat treatment apparatus for shaft-type parts according to claim 1, characterized in that, The clamping frame has a fixing hole that mates with the support rod. A conical block is engaged at one end of the fixing hole, and blades are arranged in a circumferential array on the conical block. The clamping frame is threaded with a locking ring, and the locking ring is provided with an inclined portion that abuts against the blade.

6. The heat treatment apparatus for shaft-type parts according to claim 1, characterized in that, The heat treatment device for shaft parts also includes a guide tube, the guide pipe connects two guide tubes, a base is provided on the guide tube, and a guide pipe connected to the heat flow pipe is snapped onto the base; The chassis is provided with a guide plate, and the guide plate is provided with an arc-shaped part, which is located at the air inlet of the chassis.

7. The heat treatment apparatus for shaft-type parts according to claim 1, characterized in that, A temperature measuring instrument is installed on the clamping frame, and a pressure relief pipe is installed on one side of the temperature measuring instrument.

8. The heat treatment apparatus for shaft-type parts according to claim 1, characterized in that, The clamping frame is equipped with a hanging bracket.

9. A heat treatment apparatus for shaft-type parts according to claim 1, characterized in that, A sealing element is provided between the top plate and the top plate.

10. A heat treatment apparatus for shaft-type parts according to claim 6, characterized in that, The heating cylinder is equipped with a fixed plate that cooperates with the guide cylinder.

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