CN220029264U

CN220029264U - Correcting device

Info

Publication number: CN220029264U
Application number: CN202321629783.0U
Authority: CN
Inventors: 黄文鹏; 赵龙; 解明雨; 贺志付; 滕德彬; 胡丽; 韦宁霞; 龙倩
Original assignee: Chongqing Gearbox Co Ltd
Current assignee: Chongqing Gearbox Co Ltd
Priority date: 2023-06-26
Filing date: 2023-06-26
Publication date: 2023-11-17
Anticipated expiration: 2033-06-26

Abstract

The utility model discloses a correction device which is used for correcting parts and comprises a base, a suspension rod, a pressing gasket, a supporting gasket and a contour part, wherein the supporting gasket is placed at a first end of the contour part, and a second end of the contour part is placed on the base; the lower end face of the gear ring of the part is placed on the supporting washer, and the pressurizing washer is pressed on the upper end face of the gear ring of the part; the suspender is connected with the base to suspend the base. According to the device provided by the utility model, the parts are supported by the supporting gasket and the contour parts, and the parts are compressed by the pressurizing gasket, so that the device is used for fixing the parts, the deformation influence of the parts caused by the warping of the upper end face and the lower end face can be effectively reduced, the subsequent machining is satisfied, the condition of uneven machining quantity of the gear ring of the parts is reduced, the carburized layer depth and hardness uniformity of finished parts are improved, the reliability of the use of the parts is improved, and the quality risk is reduced; utilize the jib to remove the base, the simple operation, the removal process is stable.

Description

Correcting device

Technical Field

The utility model relates to the field of shaft gear machining, in particular to a correction device.

Background

In the gear industry, the large gear component is used as one of transmission parts, the performance and the quality of the large gear component directly affect the whole product, and the structure of the current carburized and quenched large gear component mainly adopts an assembled structure and has the characteristics of more components, large weight, more processing and assembling steps, low reliability and the like. The integrally welded thin-wall shaft gear part has the characteristics of light weight, simple structure and high reliability, but the large-sized welded thin-wall shaft gear part is easy to deform due to integral heat treatment, wherein the warping of the end face is one of deformation modes.

In the prior art, aiming at the problem of warping of the end face of a small-sized disc or ring carburized and quenched part, a straightening machine is generally adopted for cold correction, however, for an ultra-large carburized and quenched welded type thin-wall shaft gear part, the cold correction mode in the prior art is not applicable due to the unique structural form and the characteristics of more welding parts. Moreover, the deformation caused by the warping of the end face has more influence on the subsequent machining of the large-scale welded thin-wall shaft gear part.

Therefore, how to effectively improve the warpage problem of the end face of the part is a technical problem that needs to be solved by those skilled in the art.

Disclosure of Invention

The utility model aims to provide a correcting device which is used for reducing the buckling deformation of the end face of a welded thin-wall shaft gear part after carburizing and quenching and reducing the deformation influence of the part caused by the buckling of the end face.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

an orthotic device for use in orthotic a part having a ring gear, comprising a base, a boom, a compression washer, a support washer, and an equal-height member, the support washer being positioned at a first end of the equal-height member, a second end of the equal-height member being positioned on the base; the lower end face of the gear ring is placed on the supporting washer, and the pressurizing washer is pressed on the upper end face of the gear ring; the boom is connected with the base to hoist the base.

Preferably, the height of the support washer is 180-220mm.

Preferably, the flatness of the upper surface of the base is less than or equal to 0.4mm.

Preferably, the parts are welded thin-walled shaft gear parts.

Preferably, the part comprises a shaft and the ring gear; the sum of the heights of the support washers and the contour members is 4-10mm greater than the distance between the lower end surface of the ring gear and the end flange member of the shaft so that a gap is formed between the end flange member of the shaft and the base.

Preferably, the device further comprises a plurality of gaskets, and the gaskets are filled in the gaps.

Preferably, the contour part comprises a plurality of contour cushion blocks, and the upper surface flatness of each contour cushion block is less than or equal to 0.08mm.

Preferably, the number of the equal-height cushion blocks is 12-16, and the equal-height cushion blocks are uniformly distributed along the circumferential direction of the base.

Preferably, the weight of the pressing washer is 1000-2000kg.

Preferably, a lifting hole is formed in the middle of the base, and a first conical surface is formed in one side, away from the equal-height component, of the lifting hole; the suspender comprises a rod body and a clamping part, wherein the clamping part is positioned at the bottom of the rod body, one side, close to the rod body, of the clamping part is provided with a second conical surface matched with the first conical surface, and the first conical surface is abutted with the second conical surface so that the suspender can be pulled up by the base.

The correcting device is used for correcting a part with a gear ring and comprises a base, a hanging rod, a pressing gasket, a supporting gasket and a contour part, wherein the supporting gasket is placed at a first end of the contour part, and a second end of the contour part is placed on the base; the lower end face of the gear ring is placed on the supporting washer, and the pressurizing washer is pressed on the upper end face of the gear ring; the boom is connected with the base to hoist the base. According to the correcting device provided by the utility model, the supporting gasket and the contour part are utilized to support the part, and the pressing gasket is utilized to press the part, so that the fixing of the part by the correcting device is realized, the deformation influence of the part caused by the warping of the upper end face and the lower end face can be effectively reduced, the subsequent machining is satisfied, the uneven machining quantity condition of the gear ring of the part is reduced, the carburized layer depth and the hardness uniformity of the finished part are improved, the use reliability of the part is improved, and the quality risk is reduced; simultaneously, utilize the jib is right the base removes, and the simple operation moves the process stability.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an embodiment of an orthotic device according to the present utility model;

wherein: 1-part, 2-pressurizing gasket, 3-equal-height part, 4-supporting gasket, 5-base and 6-suspender.

Detailed Description

The core of the utility model is to provide a correction device which can reduce the buckling deformation of the end face of a part, meet the subsequent machining requirements and improve the uniformity of depth and hardness of a carburized layer.

In order to better understand the aspects of the present utility model, the present utility model will be described in further detail with reference to the accompanying drawings and detailed description.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of an orthotic device according to the present utility model.

In this embodiment, the correction device is used for correcting the part 1 with the toothing, which device can be used for correcting disk-like parts as well as for correcting ring-like parts.

The correcting device comprises a base 5, a hanging rod 6, a pressing gasket 2, a supporting gasket 4 and a height-equal part 3, wherein the supporting gasket 4 is placed at a first end of the height-equal part 3, and a second end of the height-equal part 3 is placed on the base 5; the lower end surface of the gear ring is placed on the supporting washer 4, and the pressurizing washer 2 is tightly pressed on the upper end surface of the gear ring; the boom 6 is connected to the base 5 to hoist the base 5.

Specifically, the device supports the part 1 by using the supporting washer 4 and the equal-height part 3, the part 1 is placed on the upper part of the supporting washer 4, the part 1 is pressed by the pressing washer 2, and the pressing washer 2 presses the part 1 between the pressing washer 2 and the supporting washer 4 by means of self weight, so that the device is used for fixing the part 1; the base 5 is moved by the suspender 6, one end of the suspender 6 is clamped with the base 5, the other end of the suspender 6 can be driven to move by the hoisting equipment, and the part 1 is hoisted into a heating furnace to heat and raise the temperature.

The correcting device provided by the utility model can effectively reduce the deformation influence of the part 1 caused by the warping of the upper end face and the lower end face, meet the subsequent machining, reduce the uneven machining quantity of the gear ring of the part 1, and improve the carburized layer depth and hardness uniformity of the finished product of the part 1, thereby improving the use reliability of the part 1 and reducing the quality risk; meanwhile, the operation is convenient, and the moving process is stable.

In some embodiments, the height of the support washer 4 is 180-220mm, preferably the height of the support washer 4 is 200mm, so that an effective support of the part 1 is achieved.

In some embodiments, the flatness of the upper surface of the base 5 is less than or equal to 0.4mm, and the precision of the part 1 during installation is ensured by ensuring the flatness of the upper surface of the base 5, so that the correction precision of the part 1 is ensured.

In some embodiments, part 1 is a welded thin-walled shaft gear part, i.e., a gear welded to a shaft, resulting in a welded thin-walled shaft gear part.

In some embodiments, part 1 comprises a shaft and a ring gear; the sum of the heights of the support washers 4 and the contour members 3 is 4-10mm greater than the distance between the lower end face of the ring gear and the lower end flange member of the shaft so that a gap is formed between the end flange member of the shaft and the base 5, that is, a gap of 4-10mm is formed between the lower end flange member of the part 1 and the base 5 after the part 1 is mounted to the apparatus.

In some embodiments, a plurality of gaskets are further included, and the gaskets are filled in gaps between the end flange parts of the shaft and the base 5, so that the cushion filling is stable, and the firmness is ensured.

In some embodiments, the contour member 3 includes a plurality of contour pads that function to carry the support washers 4; further, the flatness of the upper surface of each equal-height cushion block is less than or equal to 0.08mm, so that the installation accuracy of the part 1 is ensured.

In some embodiments, the number of the equal-height cushion blocks is 12-16, the equal-height cushion blocks are uniformly distributed along the circumferential direction of the base 5, and the stability of supporting the part 1 is ensured through the uniform distribution of the equal-height cushion blocks; the height-equal cushion blocks are preferably cylindrical, and of course, the number and arrangement of the height-equal cushion blocks can be set according to actual needs, and are not limited to the modes given in the embodiment.

In some embodiments, the weight of the pressing washer 2 is 1000-2000kg, and the pressing purpose of the part 1 is achieved by the weight of the pressing washer 2.

In some embodiments, a lifting hole is formed in the middle of the base 5, and a first conical surface is formed on one side, away from the contour part 3, of the lifting hole; the suspender 6 comprises a rod body and a clamping part, the clamping part is positioned at the bottom of the rod body, one side of the clamping part, which is close to the rod body, is provided with a second conical surface matched with the first conical surface, and the first conical surface is abutted with the second conical surface so that the suspender 6 pulls up the base 5. Specifically, the cross section sizes of the first conical surface and the second conical surface are gradually increased from top to bottom, so that the boom 6 and the base 5 are matched, and when the part 1 is processed, the boom 6 is taken out from the lifting hole of the base 5 from top to bottom, so that the use is convenient.

In a specific embodiment, when the device is designed, the height of the equal-height component 3 is calculated according to the size of the part 1 and the height of the supporting gasket 4, and the requirement that the distance between the shaft end flange component of the part 1 and the base 5 is 4-10mm is met; before the tire is assembled, flatness detection is carried out on the pressurizing gasket 2, the equal-height part 3, the supporting gasket 4 and the base 5, the flatness of the equal-height part 3 is less than or equal to 0.08mm, and the flatness of the pressurizing gasket 2, the supporting gasket 4 and the base 5 is less than or equal to 0.4mm; after the base 5 and the suspender 6 are assembled, the equal-height parts 3 are uniformly distributed with 12-16 points and placed on the base 5, the supporting gasket 4 is placed on the equal-height parts 3, the flange end of the part 1 is downward, an inner hole penetrates through the suspender 6 and is placed on the base 5, the end face of the part 1, which is used for welding a gear ring, is ensured to be supported on the equal-height parts 3, and the requirement of 4-10mm of the interval between the flange part of the part 1 and the base 5 is met; the pressurizing washer 2 is placed on the end face of the welding gear ring of the part 1, a gap between the flange part of the part 1 and the base 5 is padded tightly by using a gasket, after the cushion is ensured to be stable, a disc with a well-packed tyre is hung into a heating furnace by using a hanging rod 6 and is centered, and the heating temperature is raised.

Further, the end face warping correction process of the part 1 comprises the following steps:

heating the part 1 in the furnace to 550+/-100 ℃ for heat preservation Xh, heating to the temperature of Ac1-Ac3 region for heat preservation Yh carbon potential C% =0.5-0.8, cooling to the surface of about 350+/-100 ℃ along with the furnace, discharging from the furnace, and cooling to room temperature;

protecting with methanol at above 600deg.C, and timely establishing carbon potential at 800 deg.C; wherein the heat preservation time X, Y is determined according to the size of the effective cross section of the part 1, and Ac3 refers to the final temperature at which the proeutectoid ferrite is fully fused into austenite during heating. In general, each transformation point temperature at the time of actual heating is represented by Ac1, ac3, and Accm, each transformation point temperature at the time of cooling is represented by Ar1, ar3, and Arcm, and the actual transformation critical temperature is not fixed, and the data given in the manual is only for reference.

The correction device provided by the utility model is described in detail above. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims

1. An orthotic device for correcting a part (1) having a ring gear, comprising a base (5), a boom (6), a pressing washer (2), a supporting washer (4) and a contour member (3), said supporting washer (4) being placed at a first end of said contour member (3), a second end of said contour member (3) being placed on said base (5); the lower end face of the gear ring is placed on the supporting gasket (4), and the pressurizing gasket (2) is tightly pressed on the upper end face of the gear ring; the suspender (6) is connected with the base (5) to suspend the base (5).

2. The orthosis according to claim 1, characterized in that the height of the support washer (4) is 180-220mm.

3. An orthotic device according to claim 1, wherein the upper surface flatness of the base (5) is less than or equal to 0.4mm.

4. The correction device according to claim 1, characterized in that the part (1) is a welded thin-walled shaft gear part.

5. The correction device according to claim 4, characterized in that the part (1) comprises a shaft and the ring gear; the sum of the heights of the support washers (4) and the contour members (3) is 4-10mm greater than the distance between the lower end surface of the gear ring and the end flange member of the shaft, so that a gap is formed between the end flange member of the shaft and the base (5).

6. The orthotic device of claim 5, further comprising a plurality of shims filled in said gaps.

7. The correction device according to any one of claims 1 to 6, characterized in that the contoured element (3) comprises a plurality of contoured pads, each of which has an upper surface flatness of 0.08mm or less.

8. The correction device according to claim 7, characterized in that the number of the contour blocks is 12-16, and the contour blocks are uniformly distributed along the circumferential direction of the base (5).

9. An orthotic device according to any one of claims 1 to 6, wherein the pressure washer (2) weighs 1000-2000kg.

10. The correction device according to any one of claims 1 to 6, characterized in that a lifting hole is provided in the middle of the base (5), and a first conical surface is provided on the side of the lifting hole facing away from the contour part (3); the suspender (6) comprises a rod body and a clamping part, wherein the clamping part is positioned at the bottom of the rod body, a second conical surface matched with the first conical surface is arranged on one side, close to the rod body, of the clamping part, and the first conical surface is abutted with the second conical surface so that the suspender (6) can be pulled up by the base (5).