CN216550568U - Clamping tool for heat treatment of locomotive gear shaft - Google Patents
Clamping tool for heat treatment of locomotive gear shaft Download PDFInfo
- Publication number
- CN216550568U CN216550568U CN202123178965.4U CN202123178965U CN216550568U CN 216550568 U CN216550568 U CN 216550568U CN 202123178965 U CN202123178965 U CN 202123178965U CN 216550568 U CN216550568 U CN 216550568U
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- clamping
- gear shaft
- locomotive gear
- heat treatment
- sleeved
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- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The utility model discloses a clamping tool for heat treatment of a locomotive gear shaft, which comprises a base and a vertical shaft arranged in the center of the base, wherein a hoisting hole is formed in the top end of the vertical shaft, and a plurality of groups of clamps are sleeved on the vertical shaft at intervals. Specifically, the clamping device comprises partition plates and clamping plates with clamping holes, the partition plates are sleeved on the vertical shafts in a staggered mode, and an intermediate sleeve is sleeved on the vertical shaft between every two adjacent partition plates and the clamping plates. The tool has a simple structure, is convenient to assemble and disassemble, can prevent the tooth spaces of two adjacent gear shafts from colliding when a workpiece clamped on the tool is subjected to oil quenching, can ensure the uniformity during heating and cooling, and improves the product percent of pass of locomotive gear shafts in a heat treatment process.
Description
Technical Field
The utility model relates to an auxiliary tool used in heat treatment, in particular to a clamping tool for heat treatment of a locomotive gear shaft.
Background
The locomotive gear shaft is the step axle (the minor diameter of lower part is optical axis 100, the major diameter of upper portion is gear shaft 200), the structure is as shown in figure 3, because there is not the hole in the centre, can not overlap on the work or material rest and charge the stove like the gear that leaves the centre bore, can only surround around the work or material rest, then adopt iron wire winding a week to fix, this kind of fixed mode has led to on the one hand the gear shaft in clamping in-process tooth and tooth collide with each other, on the other hand also leads to the inhomogeneity of work piece heating, cooling owing to piling up and placing, and then reduced the qualification rate of product in the locomotive gear shaft heat treatment process.
Disclosure of Invention
The utility model aims to provide a clamping tool for heat treatment of a locomotive gear shaft, by adopting the clamping tool, the mutual collision of teeth between two adjacent locomotive gear shafts during heat treatment can be avoided, and the uniformity of heating and cooling is ensured.
In order to achieve the purpose, the utility model can adopt the following technical scheme:
the clamping tool for heat treatment of the locomotive gear shaft comprises a base and a vertical shaft arranged in the center of the base, wherein a hoisting hole is formed in the top end of the vertical shaft, and a plurality of groups of clamping tools are sleeved on the vertical shaft at intervals.
Specifically, the clamping device comprises partition plates and clamping plates, the partition plates are sleeved on the vertical shafts in a staggered mode, the clamping plates are provided with clamping holes, and an intermediate sleeve is sleeved on the vertical shaft between every two adjacent partition plates and the clamping plates.
The height of the middle sleeve and the thickness of the clamping plate are smaller than the length of the optical axis of the locomotive gear shaft.
The base, the clamping plate and the partition plate are of disc-shaped structures with the same diameter.
A plurality of oil through holes are formed in the base and the partition plate; the clamping holes in the clamping plate are arranged in a balanced manner, and the inner diameter of the clamping holes is matched with the diameter of the optical axis of the locomotive gear shaft.
The utility model has the advantages of simple structure and convenient assembly and disassembly, the tooth spaces of two adjacent gear shafts cannot collide when the workpiece clamped on the tool is quenched by oil, the uniformity of heating and cooling can be ensured, and the product percent of pass of the locomotive gear shaft in the heat treatment process is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a state diagram of the use of the present invention.
Fig. 3 is a structural view of a locomotive gear shaft.
Detailed Description
It should be noted that the present embodiment is only for explaining the technical principle of the present application, and is not intended to limit the scope of protection of the present application. Although the components in the drawings are illustrated in a certain proportional relationship, the proportional relationship is not constant, and those skilled in the art can make modifications as required to adapt to specific applications, and the modified embodiments will still fall within the scope of the present application.
As shown in figure 1, the clamping tool for heat treatment of the locomotive gear shaft comprises a base 1 and a vertical shaft 2 arranged at the center of the base 1, wherein a hoisting hole 3 is formed in the top end of the vertical shaft 1, and a plurality of groups of clamping tools are sleeved on the vertical shaft 2 at intervals.
Specifically, the fixture comprises two partition plates 4 and three clamping plates 5 (as can be seen in the figure, the two partition plates 4 and the three clamping plates 5) which are alternately sleeved on the vertical shaft 2, wherein clamping holes 5.1 are uniformly formed in the clamping plates 5, eight clamping holes are shown in the figure, and the diameters of the clamping holes are matched with the diameter of the optical axis 100 of the locomotive gear shaft; the base 1, the clamping plate 5 and the partition plate 4 are in disc-shaped structures with the same diameter (the base 1 is used as the partition plate at the bottommost layer); in order to ensure that the quenching oil uniformly heats the workpiece during heat treatment, oil through holes (as can be seen in the figure, the oil through holes are forty-multiple polygonal holes which are uniformly distributed) are formed in the partition plate 4 and the base 1; for positioning, an intermediate sleeve 6 is sleeved on the vertical shaft between the adjacent partition plates 4 and the clamping plate 5. In order to ensure that the lower end surface of the gear shaft 200 is not in contact with the clamping plate 5 when the locomotive gear shaft is put in, the design is that the height of the middle sleeve 6 and the thickness of the clamping plate 5 are smaller than the length of the optical axis 100 of the locomotive gear shaft.
When the vertical shaft clamping device is used, firstly, the vertical shaft 1 is sleeved with the middle sleeve 6, then the middle sleeve 6 is additionally provided with the clamping plate 5, and a locomotive gear shaft is respectively arranged in eight clamping holes 5.1 of the clamping plate 5 (an optical axis 100 penetrates through the clamping holes 5.1, the bottom surface of the optical axis 100 is located on the base 1), because the length of the optical axis 100 of the locomotive gear shaft is greater than the height of the middle sleeve 6 and the thickness of the clamping plate 5, the lower end surface of the locomotive gear shaft is not in contact with the clamping plate 5, and the clamping plate 5 is not stressed; after the first layer of locomotive gear shaft is clamped, a partition plate 4 is sleeved on the vertical shaft 1, the middle sleeve 6 is sleeved again by taking the partition plate 4 as a bottom plate, and the second layer of locomotive gear shaft is clamped; and the process is analogized in sequence, the clamping of the three layers of locomotive gear shafts is completed, and the clamping tool for the heat treatment of the loaded locomotive gear shafts is shown in figure 2.
During oil quenching, the hoisting device puts the charged tool into oil liquid through the hoisting hole 3, and quenching oil enters the center position of the tool through the holes on the bottom plate and the partition plate, so that each part of the workpiece is uniformly heated, uniform heating of each part of the workpiece during heat treatment is ensured, and the workpiece is cooled; meanwhile, the tool can ensure that each locomotive gear shaft is uniformly and separately clamped, so that collision between the locomotive gear shaft teeth and the locomotive gear shaft teeth is effectively avoided, and the qualification rate of products in the heat treatment process is greatly improved.
Claims (4)
1. The utility model provides a locomotive gear shaft is clamping frock for thermal treatment which characterized in that: the clamp comprises a base and a vertical shaft arranged in the center of the base, wherein a hoisting hole is formed in the top end of the vertical shaft, and a plurality of groups of clamps are sleeved on the vertical shaft at intervals; the fixture comprises partition plates and clamping plates, the partition plates are sleeved on the vertical shafts in a staggered mode, the clamping plates are provided with clamping holes, and an intermediate sleeve is sleeved on the vertical shaft between every two adjacent partition plates and the clamping plates.
2. The locomotive gear shaft clamping frock for heat treatment of claim 1, characterized in that: the height of the middle sleeve and the thickness of the clamping plate are smaller than the length of the optical axis of the locomotive gear shaft.
3. The locomotive gear shaft clamping frock for heat treatment of claim 1, characterized in that: the base, the clamping plate and the partition plate are of disc-shaped structures with the same diameter.
4. The locomotive gear shaft clamping frock for heat treatment of claim 1, characterized in that: a plurality of oil through holes are formed in the base and the partition plate; the clamping holes in the clamping plate are arranged in a balanced manner, and the inner diameter of the clamping holes is matched with the diameter of the optical axis of the locomotive gear shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123178965.4U CN216550568U (en) | 2021-12-17 | 2021-12-17 | Clamping tool for heat treatment of locomotive gear shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123178965.4U CN216550568U (en) | 2021-12-17 | 2021-12-17 | Clamping tool for heat treatment of locomotive gear shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216550568U true CN216550568U (en) | 2022-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123178965.4U Active CN216550568U (en) | 2021-12-17 | 2021-12-17 | Clamping tool for heat treatment of locomotive gear shaft |
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| CN (1) | CN216550568U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115125384A (en) * | 2022-05-31 | 2022-09-30 | 山西北方机械制造有限责任公司 | High-precision variable-cross-section pipe part heat treatment self-correcting method |
-
2021
- 2021-12-17 CN CN202123178965.4U patent/CN216550568U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115125384A (en) * | 2022-05-31 | 2022-09-30 | 山西北方机械制造有限责任公司 | High-precision variable-cross-section pipe part heat treatment self-correcting method |
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