CN202265595U - Heat treatment tool disk - Google Patents
Heat treatment tool disk Download PDFInfo
- Publication number
- CN202265595U CN202265595U CN201120314732XU CN201120314732U CN202265595U CN 202265595 U CN202265595 U CN 202265595U CN 201120314732X U CN201120314732X U CN 201120314732XU CN 201120314732 U CN201120314732 U CN 201120314732U CN 202265595 U CN202265595 U CN 202265595U
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- CN
- China
- Prior art keywords
- tool disk
- treatment tool
- thermal treatment
- face
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a heat treatment tool disk which is connected onto a heat resistant steel chassis and comprises a center hole for a derrick of the heat resistant steel chassis to pass through and a gear positioning hole. A round step surface is concavely arranged on the gear positioning hole. The diameter of the gear positioning hole is equivalent to the diameter of the end face of the center hole of a workpiece gear to be subjected to heat treatment. The round step surface is in surface contact with the end face of the center hole. The heat treatment tool disk mainly has the beneficial effect that the tool disk is slightly deformed at a high temperature due to the dead weight of the tool disk, however, due to the high thickness of the tool disk and the high rigidity of the tool disk, when the weight of a loaded gear is not higher than 4 tons, the tool disk can still be kept having good flatness at the high temperature.
Description
Technical field
The utility model relates to a kind of thermal treatment tool disk, especially is applicable to guarantee that the gear planeness with the thermal treatment tool disk through carburizing quenching process, belongs to the metal heat treatmet technical field.
Background technology
Carburizing and quenching is the common technology of metal heat treatmet, comprises carburizing or quenches two technologies.Wherein, Carburizing is to instigate carbon atom to penetrate into the process of steel upper layer, also is to make the workpiece of soft steel have the upper layer of high carbon steel, again through quenching and low-temperaturetempering; Make the upper layer of workpiece have high firmness and wear resistance, and the centre portions of workpiece is still keeping the toughness and the plasticity of soft steel.The material of carburized workpiece is generally soft steel or low-carbon alloy steel (carbon content is less than 0.25%).After the carburizing, the chemical ingredients of steel piece surface can be near high carbon steel.
Also to pass through quenching behind the workpiece carbonization, obtaining high surface hardness, high wear resistance and fatigue strength, and keep heart portion that the obdurability after soft steel quenches is arranged, make the workpiece load that can withstand shocks.Carburization process is widely used in the mechanical component of aircraft, automobile and tractor etc., like gear, axle, camshaft etc.
The follower gear of subway, EMUs promptly need reach higher surface hardness through this technology.See also Fig. 1; Existing charging mode (workpiece being sent in the cementing furnace through carrying) is on high temperature steel chassis 1; Place gear 2, gear 2 is set on the suspension rod 4, and the centre hole end face 3 of gear 2 directly contacts with the surface on high temperature steel chassis 1; Because centre hole end face 3 is the bearing mounting face, therefore the planeness of this end face is had relatively high expectations.But high temperature steel chassis 1 is owing to adopt casting to form, and precision is not high, its flatness tolerance usually about 1mm, thereby cause gear 2 planenesses after the thermal treatment relatively poor, very easily cause gear to scrap.
The utility model content
The purpose of the utility model is: to the problem that above-mentioned prior art exists, provide a kind of gear planeness that can guarantee with the thermal treatment tool disk through carburizing quenching process.
The purpose of the utility model realizes through following technical scheme:
A kind of thermal treatment tool disk; Be connected on the high temperature steel chassis, it comprises the centre hole that the suspension rod on the said high temperature steel of confession chassis passes, and the gear pilot hole; Be concaved with the step cutting pattern face on the said gear pilot hole, the diameter of the centre hole end face of diameter and workpiece gear to be heated is suitable; Said step cutting pattern face is that face contacts with said centre hole end face.
Preferably, said thermal treatment tool disk has upper and lower two end faces, and the parallelism of the two is 0.10mm.
Preferably, said step cutting pattern identity distance has 10mm from the tool disk upper surface.
Preferably, the thickness of said thermal treatment tool disk is 80mm.
Preferably, the diameter of said centre hole and the diameter difference of trapeze are 0.5mm, and the gap of the one-sided periphery of centre hole and the outer circumference surface of trapeze is 0.25mm.
Preferably, said thermal treatment tool disk also comprise equally distributed, have a similar and different diameter lightening hole.
The beneficial effect of the utility model is mainly reflected in: because the deadweight of tool disk itself; When high temperature; Tool disk has the distortion of certain trace, but because the thickness of tool disk is thicker, and the rigidity of itself is better; Therefore be no more than 4 ton hours in the gear weight of loading, tool disk at high temperature still can guarantee planeness preferably.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the existing charging mode synoptic diagram of gear.
Fig. 2 is the vertical view of the tool disk of the utility model.
Fig. 3 is the AA sectional view of Fig. 2.
Fig. 4 is the BB sectional view of Fig. 2.
Fig. 5 is the charging mode synoptic diagram of the utility model gear.
Embodiment
Following embodiment with reference to description of drawings the utility model.
See also Fig. 2 to Fig. 5, the utility model provides a kind of thermal treatment tool disk 10, overlooks circularly, is placed on the existing high temperature steel chassis 1 and uses.Described thermal treatment tool disk 10 has some through holes, comprises the centre hole 11 that is positioned at the central position, is evenly distributed on the gear pilot hole 12 and lightening hole 13,14,15 in centre hole 11 outsides.Said tool disk 10 has upper and lower two end faces 16,17, and the parallelism of the two is 0.10mm.The thickness of said tool disk is 80mm.
Wherein, the diameter difference of the diameter of centre hole 11 and trapeze 4 is 0.5mm, so the gap of the outer circumference surface of the one-sided periphery of centre hole 11 and trapeze 4 is 0.25mm, has retrained tool disk 10 well and has been moved at horizontal plane; Gear pilot hole 12 has four in the present embodiment, and the diameter of the centre hole end face 3 of its diameter and workpiece gear 2 is suitable, and, being formed with step cutting pattern face 120, said step cutting pattern face 120 has 10mm apart from tool disk upper surface 16.The centre hole end face 3 of workpiece gear 2 contacts for face with step cutting pattern face 120; Because the planeness of step cutting pattern face 120 is 0.10mm; And the rigidity of tool disk 10 is better, therefore can guarantee at high temperature, and the parallelism of the contact surface same level face of gear 2 and step surface 120 is in 0.15mm; Greatly reduce the jerk value of gear-bearing end face, reduced the risk that gear is scrapped.
In addition, lightening hole 13,14,15 has different diameters respectively, and the purpose of setting is under the prerequisite that guarantees tool disk rigidity, has greatly reduced the weight of tool disk itself, has increased batch.
The utility model is not limited to aforementioned embodiments; Those skilled in the art are under the enlightenment of the utility model technical spirit; Also possibly make other changes, but, all should belong to the protection domain of the utility model as long as function and the utility model of its realization are same or similar.
Claims (6)
1. thermal treatment tool disk; Be connected on the high temperature steel chassis (1); It is characterized in that: comprise the centre hole (11) that the suspension rod (4) that supplies said high temperature steel chassis (1) passes; And gear pilot hole (12), being concaved with step cutting pattern face (120) on the said gear pilot hole (12), the diameter of the centre hole end face (3) of diameter and workpiece gear (2) to be heated is suitable; Said step cutting pattern face (120) contacts for face with said centre hole end face (3).
2. thermal treatment tool disk according to claim 1 is characterized in that: said thermal treatment tool disk has upper and lower two end faces (16,17), and the parallelism of the two is 0.10mm.
3. thermal treatment tool disk according to claim 2 is characterized in that: said step cutting pattern face (120) has 10mm apart from tool disk upper surface (16).
4. thermal treatment tool disk according to claim 2 is characterized in that: the thickness of said thermal treatment tool disk is 80mm.
5. thermal treatment tool disk according to claim 1 is characterized in that: the diameter difference of the diameter of said centre hole (11) and trapeze (4) is 0.5mm, and the gap of the one-sided periphery of centre hole (11) and the outer circumference surface of trapeze is 0.25mm.
6. thermal treatment tool disk according to claim 1 is characterized in that: said thermal treatment tool disk also comprise equally distributed, have a similar and different diameter lightening hole (13,14,15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120314732XU CN202265595U (en) | 2011-08-26 | 2011-08-26 | Heat treatment tool disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120314732XU CN202265595U (en) | 2011-08-26 | 2011-08-26 | Heat treatment tool disk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202265595U true CN202265595U (en) | 2012-06-06 |
Family
ID=46156402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120314732XU Expired - Fee Related CN202265595U (en) | 2011-08-26 | 2011-08-26 | Heat treatment tool disk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202265595U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103146899A (en) * | 2013-02-20 | 2013-06-12 | 天津辰龙重工机械有限公司 | Processing apparatus for preventing pistons on hydraulic cylinder for hammer from deforming, and method thereof |
-
2011
- 2011-08-26 CN CN201120314732XU patent/CN202265595U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103146899A (en) * | 2013-02-20 | 2013-06-12 | 天津辰龙重工机械有限公司 | Processing apparatus for preventing pistons on hydraulic cylinder for hammer from deforming, and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20160826 |