CN204474727U - For the heat treated frock of inside spline wheel gear - Google Patents

For the heat treated frock of inside spline wheel gear Download PDF

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Publication number
CN204474727U
CN204474727U CN201520080438.5U CN201520080438U CN204474727U CN 204474727 U CN204474727 U CN 204474727U CN 201520080438 U CN201520080438 U CN 201520080438U CN 204474727 U CN204474727 U CN 204474727U
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CN
China
Prior art keywords
gear
mobile jib
spline
heat treated
cover
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Active
Application number
CN201520080438.5U
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Chinese (zh)
Inventor
敬代云
牛万斌
唐章兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG SHUANGHUAN DRIVELINE CO Ltd
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ZHEJIANG SHUANGHUAN DRIVELINE CO Ltd
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Priority to CN201520080438.5U priority Critical patent/CN204474727U/en
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Abstract

The utility model discloses one for the heat treated frock of inside spline wheel gear, comprise mobile jib (1), lower end fixed installation base (3) of mobile jib (1); The upper cover (2) that the upper end overcoat of mobile jib (1) is circular, and and be running fit between upper cover (2); Mobile jib (1) is outside for assembling gear to be processed, gear to be processed is between upper cover (2) and base (3), the diameter phi of mobile jib (1) adopts following formula to determine: φ=d-d/D-h/H-1 (mm), wherein: the thickness (mm) that the thickness (mm) that the diameter (mm) that the path (mm) that d is gear inner spline, D are gear spoke, h are the rim of gear, H are gear spoke.The utility model is used for the heat treated frock of inside spline wheel gear and is applied to inside spline wheel gear thermal treatment; it can while guarantee spline intensity; be conducive to again follow-up machining and cutter life; in addition; entirety can also carry out Shot Blasting; greatly simplifie operating process, be applicable to large-scale production.

Description

For the heat treated frock of inside spline wheel gear
Technical field
The utility model belongs to gear heat treatment technical field, is specifically related to a kind of frock for controlling inside spline wheel gear carburizing and quenching.
Background technology
Existing inside spline wheel gear Final Heat Treatment Process mainly adopts overall sclerosis or internal spline to be coated with permeability-reducing admixture method, overall sclerosis is adopted to have the high feature of hardness, but because finished heat treatment rear surface hardness is too high, thus be unfavorable for the finishing to internal spline after heat and correction of the flank shape; And adopt internal spline to be coated with permeability-reducing admixture, then by manual operation, dope viscosity, the degree of uniformity even many factors such as envrionment temperature, humidity, after causing heat, hardness scattered error scope is large, is not suitable for large-scale production.
Summary of the invention
For solving the problems referred to above that prior art exists, the utility model discloses a kind of for the heat treated frock of inside spline wheel gear.
For achieving the above object, the utility model takes following technical scheme: for the heat treated frock of inside spline wheel gear, comprises mobile jib (1), lower end fixed installation base (3) of mobile jib (1); The upper cover (2) that the upper end overcoat of mobile jib (1) is circular, and and be running fit between upper cover (2); Mobile jib (1) is outside for assembling gear to be processed, gear to be processed is between upper cover (2) and base (3), the diameter phi of mobile jib (1) adopts following formula to determine: φ=d-d/D-h/H-1 (mm), wherein: the thickness (mm) that the thickness (mm) that the diameter (mm) that the path (mm) that d is gear inner spline, D are gear spoke, h are the rim of gear, H are gear spoke.
Preferably, base (3) forms with mobile jib (1) one machine-shaping or welding.
Preferably, the internal diameter of upper cover (2) is d-1.5 millimeter, and external diameter is D+10 millimeter, and thickness is 10 ~ 15 millimeters.
Preferably, the external diameter of base (3) is D+10 millimeter.
The utility model is used for the heat treated frock of inside spline wheel gear and is applied to inside spline wheel gear thermal treatment; it can while guarantee spline intensity; be conducive to again follow-up machining and cutter life; in addition; entirety can also carry out Shot Blasting; greatly simplifie operating process, be applicable to large-scale production.
Accompanying drawing explanation
Fig. 1 is the assembly structure schematic diagram of the utility model frock and processed product.
Embodiment
Below in conjunction with accompanying drawing, the utility model preferred embodiment is elaborated.
See Fig. 1, the present embodiment frock comprises mobile jib 1, upper cover 2, base 3, and frock two ends diameter assembles bed material dish, fixing charging tray (different because of equipment) respectively, and size is easily determined.The key of tool structure is the determination of mobile jib 1 centre portion diameter phi (i.e. outer cover cogged a section), if this diameter is excessive, although shielding is good, but spline hardness is too low, even there is " locking " risk, during ball blast, carry shot secretly, dismounting difficulty; If diameter is too small, in gap carburizing atmosphere and quenching oil flow excessive, thermal conduction is too fast, and spline microstructure transforms to high carbon martensite, much higher hard, simultaneously also can weaken frock intensity.
For this reason, the utility model takes following solution: gear inner spline path d, flange thickness h, spoke thickness H and spoke outer diameter D, and determine its mobile jib diameter phi according to the following equation, frock, product structure and assembly relation are as shown in Figure 1.
φ=d-d/D-h/H-1(mm)
Wherein: φ-frock mobile jib diameter, mm;
D-internal spline path (tip diameter), mm;
D-gear spoke diameter, mm;
H-flange thickness, mm;
H-spoke thickness (gear total thickness), mm.
Upper cover 2 is in circular ring, and its internal diameter gets (d-1.5) mm, external diameter is got (D+10) mm, and thickness gets 10 ~ 15mm, and upper cover 1 is coated at outside the upper end of mobile jib 1, and and be running fit between mobile jib 1, be convenient to load and unload.
Base 3 is fixed on the lower end of mobile jib 1, and itself and mobile jib 1 integrally process or welding forms, and its external diameter gets (D+10) mm.
According to Fig. 1, by several gear 4-1,4-2 ... 4-N is coated at the centre portion of mobile jib 1, and go up a gear most and be placed under upper cover 2, the most next gear 4-N is put on base 3, and several gear is vertically arranged.Frock with several gear is loaded on heat treated charging tray, then enters stove and carries out carburizing and quenching subsequently, temper, overall shot peening after coming out of the stove.Follow-up machining processes is transferred to, as internal spline hard draw shaping etc. after disassembling.
The utility model controls carburizing frock based on appropriate design and through the internal spline of multiple product actual verification, after can making heat, spline Hardness Control is in 30-38HRc scope, while guarantee spline intensity, is conducive to follow-up machining and cutter life, meanwhile, entirety Shot Blasting can be carried out.
The utility model simplifies operating process, can be applicable to large-scale production.
The utility model is applicable to 20CrMoH, 8620H, 20CrMnTiH material, has the middle low module carburizing and quenching gear of internal spline structure.
Above preferred embodiment of the present utility model is described in detail; for those of ordinary skill in the art; according to the thought that the utility model provides, embodiment will change, and these changes also should be considered as protection domain of the present utility model.

Claims (4)

1. for the heat treated frock of inside spline wheel gear, comprise mobile jib (1), it is characterized in that lower end fixed installation base (3) of mobile jib (1); The upper cover (2) that the upper end overcoat of mobile jib (1) is circular, and and be running fit between upper cover (2); Mobile jib (1) is outside for assembling gear to be processed, gear to be processed is between upper cover (2) and base (3), the diameter phi of mobile jib (1) adopts following formula to determine: φ=d-d/D-h/H-1 (mm), wherein: the thickness (mm) that the thickness (mm) that the diameter (mm) that the path (mm) that d is gear inner spline, D are gear spoke, h are the rim of gear, H are gear spoke.
2. as claimed in claim 1 for the heat treated frock of inside spline wheel gear, it is characterized in that: described base (3) forms with mobile jib (1) one machine-shaping or welding.
3. as claimed in claim 1 for the heat treated frock of inside spline wheel gear, it is characterized in that: the internal diameter of described upper cover (2) is d-1.5 millimeter, and external diameter is D+10 millimeter, and thickness is 10 ~ 15 millimeters.
4. as claimed in claim 1 for the heat treated frock of inside spline wheel gear, it is characterized in that: the external diameter of described base (3) is D+10 millimeter.
CN201520080438.5U 2015-02-05 2015-02-05 For the heat treated frock of inside spline wheel gear Active CN204474727U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520080438.5U CN204474727U (en) 2015-02-05 2015-02-05 For the heat treated frock of inside spline wheel gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520080438.5U CN204474727U (en) 2015-02-05 2015-02-05 For the heat treated frock of inside spline wheel gear

Publications (1)

Publication Number Publication Date
CN204474727U true CN204474727U (en) 2015-07-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520080438.5U Active CN204474727U (en) 2015-02-05 2015-02-05 For the heat treated frock of inside spline wheel gear

Country Status (1)

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CN (1) CN204474727U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106271479A (en) * 2016-09-18 2017-01-04 安徽江淮汽车股份有限公司 Involute gear internal spline processing method and gear

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106271479A (en) * 2016-09-18 2017-01-04 安徽江淮汽车股份有限公司 Involute gear internal spline processing method and gear

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Tooling for heat treatment of internal spline gear

Effective date of registration: 20210904

Granted publication date: 20150715

Pledgee: Industrial Commercial Bank of China Ltd. Yuhuan branch

Pledgor: ZHEJIANG SHUANGHUAN DRIVELINE Co.,Ltd.

Registration number: Y2021330001358

PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20210922

Granted publication date: 20150715

Pledgee: Industrial Commercial Bank of China Ltd. Yuhuan branch

Pledgor: ZHEJIANG SHUANGHUAN DRIVELINE Co.,Ltd.

Registration number: Y2021330001358