CN216045095U - Low-gear cone hub and torque transmission plate full-length welding structure - Google Patents
Low-gear cone hub and torque transmission plate full-length welding structure Download PDFInfo
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- CN216045095U CN216045095U CN202122343983.7U CN202122343983U CN216045095U CN 216045095 U CN216045095 U CN 216045095U CN 202122343983 U CN202122343983 U CN 202122343983U CN 216045095 U CN216045095 U CN 216045095U
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- torque transmission
- transmission plate
- cone hub
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Abstract
The utility model discloses a full-welding structure of a low-gear cone hub and a torque transmission plate, which comprises the torque transmission plate and the low-gear cone hub, wherein the low-gear cone hub comprises an annular cone hub body, the top end of the cone hub body extends outwards along the radial direction, a circle of bulges are coaxially arranged around a cone hub central hole on the top surface of the cone hub body, the axial cross sections of the bulges are rectangular, a through hole matched with the bulges is arranged in the middle of the torque transmission plate, the bulges are tightly embedded in the through hole, the upper surfaces of the bulges and the inner wall surface of the through hole are combined to form an L shape, and a circle of soldering tin is arranged along the included angle of the L shape. According to the utility model, a circle of soldering tin is arranged along the L-shaped included angle, the annular soldering tin tightly connects the upper surface of the bulge and the inner wall surface of the through hole together, the welding effect is good, and the welding quality is high; compared with a welding mode that the low-gear cone hub and the torque transmission plate are connected through the spline firstly and then are subjected to spot welding, the welding method has the advantages that the processing steps of the spline and the key groove are omitted, the manufacturing cost is low, and the cost performance is high.
Description
Technical Field
The utility model relates to the technical field of welding, in particular to a full-length welding structure of a low-gear cone hub and a torque transmission plate.
Background
At present, a synchronizer is a key component of a mechanical gear transmission, and the synchronizer has the advantages of portability, flexibility, small impact and the like in gear shifting, and is favorable for improving the dynamic property and the fuel economy of an automobile. The low-gear cone hub and the torque transmission plate are core components in the synchronizer, play a role in shifting gears and transmitting torque in the synchronizer and are key wearing parts in the synchronizer.
The conventional connection mode of the low-gear cone hub and the torque transmission plate is spot welding, as shown in fig. 1-2, a circle of tooth teeth and a circle of spline 4 are arranged on the side wall of the low-gear cone hub, and the spline 4 is arranged at the uppermost end of the side wall of the low-gear cone hub. The middle part of biography torsional plate is provided with the through-hole, is provided with the spline groove that matches with spline 4 on the through-hole inner wall. The low-gear cone hub is meshed with the torque transmission plate through a spline 4, and six welding spots 5 which are uniformly distributed in the circumferential direction are arranged at the meshing position for welding and fixing. Although spline meshing has a certain torsion-resistant function, the spot welding connection effect is poor, the low-gear cone hub is easy to be subjected to axial impact force, and spot welding separation can be caused when the impact force is too large, so that the low-gear cone hub is separated from the torque transmission plate; therefore, the existing welding structure is urgently needed to be improved, and safety accidents are avoided.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model aims to provide a full-welding structure of a low-gear cone hub and a torque transmission plate, which can ensure the welding quality of the low-gear cone hub and the torque transmission plate and avoid safety accidents.
In order to achieve the purpose, the utility model provides a full-welding structure of a low-gear cone hub and a torque transmission plate, which comprises the torque transmission plate and the low-gear cone hub, wherein the low-gear cone hub comprises an annular cone hub body, the top end of the cone hub body extends outwards along the radial direction, a circle of bulges are coaxially arranged around a cone hub center hole on the top surface of the cone hub body, the axial cross sections of the bulges are rectangular, a through hole matched with the bulges is arranged in the middle of the torque transmission plate, the bulges are tightly embedded in the through hole, the upper surfaces of the bulges and the inner wall surface of the through hole are combined to form an L shape, and a circle of soldering tin is arranged along the included angle of the L shape.
In the scheme, the method comprises the following steps: the axial height of the protrusions is 1/2-1/3 of the axial height of the torque transmission plate. The axial height of the protrusion is too low, the protrusion is easy to separate from the through hole, the axial height of the protrusion is too high, the upper surface of the protrusion cannot be combined with the inner wall surface of the through hole to form a complete L shape, and the welding effect is affected.
In the scheme, the method comprises the following steps: the bulges and the cone hub body are integrally formed, and the integrally formed product is not easy to crack and damage.
In the scheme, the method comprises the following steps: the tooling positioning holes are formed in the torque transmission plate and are used for fixing the torque transmission plate, so that welding operation is convenient to carry out.
In the scheme, the method comprises the following steps: and arranging soldering tin by adopting a manipulator welding mode. The mechanical hand welding is favorable for improving the welding quality, and the welding process is time-saving and labor-saving.
The utility model has the beneficial effects that:
1. the bulge is tightly embedded in the through hole, and the low-gear cone hub and the torque transmission plate are connected and fixed when welding is not performed, so that the welding operation is facilitated, and the final connection effect of the low-gear cone hub and the torque transmission plate can be enhanced;
2. a circle of soldering tin is arranged along the L-shaped included angle, the upper surface of the bulge is tightly connected with the inner wall surface of the through hole through the annular soldering tin, the welding effect is good, and the welding quality is high;
3. compared with a welding mode that the low-gear cone hub and the torque transmission plate are connected through the spline firstly and then are subjected to spot welding, the welding method has the advantages that the processing steps of the spline and the key groove are omitted, the manufacturing cost is low, and the cost performance is high.
Drawings
FIG. 1 is a schematic structural view of a modified front low-speed cone hub.
FIG. 2 is a schematic view of a welding structure of a low-gear cone hub and a torque transmission plate before improvement.
Fig. 3 is an exploded schematic view of the present invention.
Fig. 4 is a cross-sectional view of the present invention.
Fig. 5 is an enlarged view at a in fig. 4.
Detailed Description
As shown in fig. 3-5, a low-gear cone hub and torque transmission plate full-welded structure mainly comprises a torque transmission plate 1 and a low-gear cone hub 2.
The middle part of the torque transmission plate 1 is provided with a through hole 101 matched with the bulge 202, and the bulge 202 is tightly embedded in the through hole 101; the upper surface of the protrusion 202 and the inner wall surface of the through hole 101 are combined to form an L shape, and a circle of soldering tin 3 is arranged along the included angle of the L shape. The annular solder 3 tightly connects the upper surface of the projection 202 and the inner wall surface of the through hole 101, and has a good welding effect and high welding quality.
Preferably, the axial height of the protrusion 202 is 1/2-1/3 of the axial height of the torque transmission plate 1. The axial height of the protrusion 202 is too low, so that the protrusion 202 is easily separated from the through hole 101, and the axial height of the protrusion 202 is too high, so that the upper surface of the protrusion 202 cannot be combined with the inner wall surface of the through hole 101 to form a complete L shape, which affects the welding effect.
Preferably, the protrusion 202 and the cone hub body 201 are integrally formed, and the integrally formed product is not easy to crack and damage.
Preferably, the torque transmission plate 1 is provided with a tool positioning hole 102, and the torque transmission plate 1 is fixed through the tool positioning hole 102, so that the welding operation is facilitated.
Preferably, the solder 3 is applied by means of a robot welding method. Compared with the carbon dioxide protection manual welding, the mechanical hand welding is beneficial to improving the welding quality and the welding efficiency, and the welding process is time-saving and labor-saving.
Claims (5)
1. The utility model provides a keep off awl hub and biography and turn round board full weld structure, includes biography and turns round board (1), keeps off awl hub (2) low, keep off awl hub (2) including annular awl hub body (201), its characterized in that: the top end of the cone hub body (201) extends outwards along the radial direction, a circle of bulges (202) are coaxially arranged around a cone hub center hole on the top surface of the cone hub body (201), the axial cross sections of the bulges (202) are rectangular, a through hole (101) matched with the bulges (202) is arranged in the middle of the torque transmission plate (1), the bulges (202) are tightly embedded in the through hole (101), the upper surface of the bulges (202) and the inner wall surface of the through hole (101) are combined to form an L shape, and a circle of soldering tin (3) is arranged along the included angle of the L shape.
2. The low-gear cone hub and torque transmission plate full-length welding structure of claim 1, wherein: the axial height of the protrusion (202) is 1/2-1/3 of the axial height of the torque transmission plate (1).
3. The low-gear cone hub and torque transmission plate full-length welding structure of claim 1, wherein: the protrusions (202) are integrally formed with the cone hub body (201).
4. The low-gear cone hub and torque transmission plate full-length welding structure of claim 1, wherein: the torque transmission plate (1) is provided with a tool positioning hole (102).
5. The low-gear cone hub and torque transmission plate full-length welding structure of claim 1, wherein: and arranging soldering tin (3) by adopting a manipulator welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122343983.7U CN216045095U (en) | 2021-09-26 | 2021-09-26 | Low-gear cone hub and torque transmission plate full-length welding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122343983.7U CN216045095U (en) | 2021-09-26 | 2021-09-26 | Low-gear cone hub and torque transmission plate full-length welding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216045095U true CN216045095U (en) | 2022-03-15 |
Family
ID=80607129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122343983.7U Active CN216045095U (en) | 2021-09-26 | 2021-09-26 | Low-gear cone hub and torque transmission plate full-length welding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216045095U (en) |
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2021
- 2021-09-26 CN CN202122343983.7U patent/CN216045095U/en active Active
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