CN210945719U

CN210945719U - Spline end protection device for quenching of automobile half shaft

Info

Publication number: CN210945719U
Application number: CN201921822658.5U
Authority: CN
Inventors: 冯世平; 许来运; 江贵友; 吴艳芳; 郭相红
Original assignee: Changzhi Zhongtian Auto Semi Axis Co ltd
Current assignee: Changzhi Zhongtian Auto Semi Axis Co ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-07-07
Anticipated expiration: 2029-10-28

Abstract

The utility model discloses a spline end protection device for car semi-axis quenches relates to quenching protection device technical field, specifically is a spline end protection device for car semi-axis quenches, including the zone of heating, the internal fixed surface of zone of heating is connected with spline shaft sleeve, the heat preservation has been seted up to spline shaft sleeve's inside, spline shaft sleeve's inside swing joint has the spline end, the opposite side fixedly connected with clamping device of support frame, clamping device has handle, gear, rack, sealed lid, presss from both sides tight piece, gear box and constitutes. This a spline end protection device for car semi-axis quenches through the setting of spline axle sleeve, makes this protection device possess the abundant cooling effect that keeps warm that the surface area of spline end can, makes the spline end be heated evenly, prevents that the spline end from producing the crackle, and the heat preservation prevents that the spline end heat preservation effect is not good and cause the organizational performance to descend, has reached the purpose that improves production product quality.

Description

Spline end protection device for quenching of automobile half shaft

Technical Field

The utility model relates to a quenching protection device technical field specifically is a spline end protection device for car semi-axis quenches.

Background

The shaft generally plays a role in transmission, when small-torque transmission is carried out, the diameter of a pitch circle of the spline is small, a slender shaft is adopted, when the required transmission torque is large, the diameter of the pitch circle of the spline is large, the diameter of the middle part of the shaft needs to be large, and due to comprehensive consideration of material cost, labor intensity, transportation and the like, a hollow shaft is often adopted. During quenching, only the shaft end spline and the part matched with the bearing are required to be quenched so as to improve the transmission performance. The purpose of quenching is to transform super-cooled austenite into martensite or bainite to obtain martensite or bainite structure, and then to match with tempering at different temperatures to greatly improve the rigidity, hardness, wear resistance, fatigue strength, toughness and the like of steel, thereby meeting different use requirements of various mechanical parts and tools, and also meeting special physical and chemical properties of ferromagnetism, corrosion resistance and the like of some special steels through quenching.

The spline end protection device for automobile half axle quenching disclosed in the chinese utility model patent application publication CN208266228U has the advantage of protecting the spline shaft from falling off easily in the quenching stage, but has the disadvantage of failing to perform good heat preservation and cooling treatment on the spline end.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a spline end protection device for quenching of automobile half shafts, which solves the problems provided in the prior art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a spline end protection device for car semi-axis quenches, includes, the zone of heating, the internal surface fixedly connected with spline shaft sleeve of zone of heating, spline shaft sleeve's inside is provided with the heat preservation, the inside of heat preservation is provided with the heat preservation medium, spline shaft sleeve's inside swing joint has the spline end, the external surface fixedly connected with support frame of zone of heating lower part, one side fixedly connected with baffle of support frame, the opposite side fixedly connected with clamping device of support frame, press from both sides tightly to constitute by handle, gear shaft, gear, rack, sealed lid, press from both sides tight piece, gear box, the bottom fixedly connected with base of gear box, the rack groove has been seted up to the upper surface.

Optionally, the inside of zone of heating is provided with the heater strip, the material of zone of heating uses thermal-insulated material.

Optionally, the inner surface of the spline shaft sleeve is provided with a spline groove, and the spline at the end of the spline is in meshed connection with the spline groove of the spline shaft sleeve.

Optionally, a feed inlet is formed in the upper end of the spline shaft sleeve, and a discharge outlet is formed in the lower end of the spline shaft sleeve.

Optionally, one end of the clamping block is fixedly connected with an anti-slip pad, one end of the anti-slip pad is provided with a spline groove, and the anti-slip pad is made of asbestos materials.

Optionally, the inner wall of the spline shaft sleeve is smooth.

(III) advantageous effects

The utility model provides a spline end protection device for quenching of automobile semi-axis possesses following beneficial effect:

1. this a spline end protection device for car semi-axis quenches, setting through the spline axle sleeve, make this protection device possess the refrigerated effect that keeps warm that carries on that makes the spline end can be abundant, cooperation setting through zone of heating and heat preservation, in-process using can heat through the heating wire, make whole axle sleeve be heated evenly, make the spline end be heated evenly, thereby improve the spline performance, prevent that the spline end from producing the crackle, setting through the heat preservation, the condition of the metal tissue emergence harmful change that the spline end caused because of the heat dissipation is too fast has been prevented, thereby the effect of protection spline end quality has been played, the purpose of improving production product quality has been reached.

2. This a spline end protection device for car semi-axis quenches, setting through feed inlet and discharge gate, make this protection device not only possess the effect of conveniently changing the heat preservation medium, but also can add coolant after the heat preservation, accelerate the cooling of spline, improve production efficiency, cooperation through gear and rack sets up, the handle can be rotated to the in-process that uses, press from both sides tight spline, prevent that the spline end from droing when the heat preservation cooling, thereby reached the purpose that the protection spline end does not receive external factor and damage in process of production.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 1 according to the present invention;

fig. 4 is a schematic three-dimensional structure diagram of the spline sleeve of the present invention.

In the figure: 1. a heating layer; 2. a spline shaft sleeve; 3. a heat-insulating layer; 4. a heat preservation medium; 5. a spline end; 6. a support frame; 7. a baffle plate; 8. a handle; 9. a gear shaft; 10. a gear; 11. a rack; 12. a sealing cover; 13. a clamping block; 14. a gear case; 15. a base; 16. a heating wire.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 4, the present invention provides a technical solution: a spline end protection device for automobile half shaft quenching comprises a heating layer 1, wherein a heating wire 16 is arranged inside the heating layer 1, the material of the heating layer 1 is made of a heat insulation material, a spline shaft sleeve 2 is fixedly connected to the inner surface of the heating layer 1, a spline groove is formed in the inner surface of the spline shaft sleeve 2, a spline of a spline end 5 is meshed with the spline groove of the spline shaft sleeve 2, a feed inlet is formed in the upper end of the spline shaft sleeve 2, a discharge outlet is formed in the lower end of the spline shaft sleeve 2, the inner wall of the spline shaft sleeve 2 is smooth, a heat insulation layer 3 is arranged inside the spline shaft sleeve 2, a heat insulation medium 4 is arranged inside the heat insulation layer 3, the spline end 5 is movably connected inside the spline shaft sleeve 2, a support frame 6 is fixedly connected to the outer surface of the lower portion of, the opposite side fixedly connected with clamping device of support frame 6, it comprises handle 8, gear shaft 9, gear 10, rack 11, sealed lid 12, clamp piece 13, gear box 14 to press from both sides tightly, the one end fixedly connected with slipmat of clamp piece 13, the one end of slipmat is provided with the spline groove, the slipmat adopts the asbestos material, the bottom fixedly connected with base 15 of gear box 14, the rack groove has been seted up to the upper surface of gear box 14.

During the use, spline end 5 is after the heating, wait to the temperature when Ac3 or Ac1 falls naturally, put into spline axle sleeve 2 with spline end 5, through rotating handle 8, make gear 10 drive rack 11 remove, through pressing from both sides fixed spline end 5 of tight piece 13, heater strip 16 circular telegram back, heat 1 with spline sleeve 1 through zone of heating, heat transfer is to heat preservation 3 after the heating, heat preservation 3 transfers for 2 inner walls of spline axle sleeve after with the heat homogenization, the final transfer is for spline end 5.

The utility model discloses a theory of operation and beneficial effect: the spline end protection device for quenching the automobile half shaft has the advantages that the spline end 5 can be fully insulated and cooled through the arrangement of the spline shaft sleeve 2, the heating layer 1 and the heat preservation layer 3 are arranged in a matched mode, heating can be carried out through the heating wire 16 in the using process, the whole spline shaft sleeve 2 is uniformly heated, the spline end 5 is uniformly heated, the spline performance is improved, cracks are prevented from being generated on the spline end 5, the heat preservation layer 3 prevents the adverse change of a metal structure of the spline end 5 caused by too fast heat dissipation, the quality of the spline end is protected, the purpose of improving the quality of a produced product is achieved, through the arrangement of the feed inlet and the discharge outlet, the protection device not only has the effect of conveniently replacing the heat preservation medium 4, but also can be added with a cooling medium after the heat preservation is finished, accelerate the cooling of spline, improve production efficiency, through the cooperation setting of gear 10 and rack 11, can rotate handle 1 at the in-process that uses, press from both sides tight spline end 5, prevent that spline end 5 from droing when keeping warm the cooling to reached protection spline end 5 and not received external factor and damaged purpose in process of production.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a spline end protection device for automobile half axle quenches, includes zone of heating (1), its characterized in that: the inner surface of the heating layer (1) is fixedly connected with a spline shaft sleeve (2), a heat preservation layer (3) is arranged inside the spline shaft sleeve (2), a heat preservation medium (4) is arranged inside the heat preservation layer (3), a spline end (5) is movably connected inside the spline shaft sleeve (2), the outer surface of the lower part of the heating layer (1) is fixedly connected with a supporting frame (6), one side of the supporting frame (6) is fixedly connected with a baffle (7), the other side of the supporting frame (6) is fixedly connected with a clamping device, the clamping is composed of a handle (8), a gear shaft (9), a gear (10), a rack (11), a sealing cover (12), a clamping block (13) and a gear box (14), the bottom fixedly connected with base (15) of gear box (14), the rack groove has been seted up to the upper surface of gear box (14).

2. The spline end protection device for automobile half-shaft quenching as claimed in claim 1, wherein: the heating layer (1) is internally provided with a heating wire (16), and the heating layer (1) is made of a heat insulation material.

3. The spline end protection device for automobile half-shaft quenching as claimed in claim 1, wherein: the inner surface of the spline shaft sleeve (2) is provided with a spline groove, and the spline of the spline end (5) is meshed with the spline groove of the spline shaft sleeve (2).

4. The spline end protection device for automobile half-shaft quenching as claimed in claim 1, wherein: the upper end of spline shaft sleeve (2) is provided with the feed inlet, the lower extreme of spline shaft sleeve (2) is provided with the discharge gate.

5. The spline end protection device for automobile half-shaft quenching as claimed in claim 1, wherein: one end of the clamping block (13) is fixedly connected with an anti-slip pad, one end of the anti-slip pad is provided with a spline groove, and the anti-slip pad is made of asbestos materials.

6. The spline end protection device for automobile half-shaft quenching as claimed in claim 1, wherein: the inner wall of the spline shaft sleeve (2) is smooth.