High-efficiency gear strength detection tooling

By designing an efficient gear strength testing fixture and utilizing gear meshing and torque meter measurement, the problem of testing the tooth strength of F-type split gears was solved, achieving rapid and reliable test results, reducing the risk of deformation or tooth breakage, and improving testing efficiency.

CN115493835BActive Publication Date: 2026-06-09GREE ELECTRIC APPLIANCES WUHAN +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GREE ELECTRIC APPLIANCES WUHAN
Filing Date
2022-09-27
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing technologies cannot effectively detect the tooth strength of F split gears, which may lead to the risk of deformation or tooth breakage. Furthermore, the detection process is complex and inefficient.

Method used

A high-efficiency gear strength testing fixture was designed, including a gear product, a positioning pin, a fixed shaft, a base, a transmission shaft, and a torque meter. The strength of the gear is measured by gear meshing and torsion. Combined with a dial and an anti-slip device, it achieves accurate positioning and rapid testing.

Benefits of technology

It enables rapid, intuitive, and reliable gear strength testing, eliminating the risk of deformation or tooth breakage and improving testing efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

A kind of high-efficiency gear strength detection tool, including gear product, the gear product includes tooth root, gear teeth and flat position, the gear teeth connect tooth root, the tooth root connects flat position, the gear product connects positioning needle, the positioning needle connects fixed shaft, the fixed shaft connects base, the base connects transmission shaft, the transmission shaft connects pin needle;The present application provides a kind of high-efficiency gear strength detection tool, the tool is simple to operate, there is gear flat position placement prompt mark, can measure each tooth strength, can be obtained in cooperation torsion meter whether gear is in qualified range and strength value, solve the F split gear tooth strength detection difficult problem, ensure the quality of F split gear product, eliminate the deformation or broken tooth after-sales complaint risk caused by strength unqualified of gear product, improve the work efficiency of measurement personnel.
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Description

Technical Field

[0001] This invention relates to the field of gear testing tooling technology, and in particular to a high-efficiency gear strength testing tooling. Background Technology

[0002] In existing technologies, the strength of F-type split gears needs to be randomly inspected during production to ensure that the gear teeth are of qualified strength and will not deform or break during operation. F-type split gears are small, with a maximum outer diameter of D7.2mm, making it impossible to inspect the gear strength visually or manually. After assembly, F-type split gears can only rotate normally, making it impossible to measure their strength and guarantee the strength they will withstand during long-term rotation. This poses a risk of after-sales complaints due to gear tooth deformation or breakage. Summary of the Invention

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this invention is to provide a high-efficiency gear strength testing fixture.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a high-efficiency gear strength testing fixture, including a gear product, the gear product comprising a tooth root, a tooth and a flat position, the tooth connecting to the tooth root, the tooth root connecting to the flat position, the gear product connecting to a positioning pin, the positioning pin connecting to a fixed shaft, the fixed shaft connecting to a base, the base connecting to a transmission shaft, and the transmission shaft connecting to a pin.

[0005] As a further improvement of the present invention: the transmission shaft is provided with a hexagonal shaft handle.

[0006] As a further improvement of the present invention: the hexagonal shaft is connected to a torque meter.

[0007] As a further improvement of the present invention: the transmission shaft is connected to a transmission shaft gear.

[0008] As a further improvement of the present invention: the transmission shaft gear and the gear product are connected by gear meshing.

[0009] As a further improvement of the present invention: the bottom of the drive shaft and the top of the pin are connected by an embedded connection.

[0010] As a further improvement of the present invention: the fixed shaft is connected by a positioning pin.

[0011] As a further improvement of the present invention: the fixed shaft is fixedly connected to the base by a positioning pin.

[0012] As a further improvement of the present invention: the torque meter is provided with a scale.

[0013] As a further improvement of the present invention, the base is provided with rounded corners around its perimeter.

[0014] As a further improvement of the present invention, the base and the gear product are detachably connected.

[0015] As a further improvement of the present invention, the torque meter is provided with an anti-slip device.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] This invention provides a high-efficiency gear strength testing fixture. The fixture is easy to operate, has a gear-alignment indicator, and can measure the strength of each tooth. When used with a torque meter, it can determine whether the gear is within the acceptable range and its strength value. This solves the problem of difficult tooth strength testing for F-type split gears, ensures the quality of F-type split gear products, eliminates the risk of after-sales complaints due to deformation or broken teeth caused by unacceptable strength, and improves the work efficiency of measurement personnel. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the gear product structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the efficient gear strength testing fixture structure of the present invention;

[0020] Figure 3 This is a top view schematic diagram of the high-efficiency gear strength testing fixture of the present invention;

[0021] Figure 4 This is a schematic cross-sectional view of the high-efficiency gear strength testing fixture of the present invention;

[0022] Figure 5 This is a schematic diagram of the positioning pin and fixed shaft structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the assembly structure of the positioning pin and the fixed shaft of the present invention;

[0024] Figure 7 This is a schematic diagram of the transmission shaft and pin structure of the present invention;

[0025] Figure 8 This is a schematic diagram of the assembly structure of the drive shaft and pin of the present invention;

[0026] Figure 9 This is a schematic cross-sectional view of the assembly structure of the drive shaft and pin of the present invention;

[0027] Figure 10 This is a schematic diagram showing the relationship between the assembled drive shaft of the present invention and the product.

[0028] Figure 11 This is a schematic diagram of the gear strength detection structure of the present invention.

[0029] In the diagram: 1. Gear product; 2. Tooth root; 3. Gear tooth; 4. Flat position; 5. Positioning pin; 6. Fixed shaft; 7. Base; 8. Drive shaft; 9. Pin; 10. Torque meter; 11. Drive shaft gear; 12. Dial. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0031] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this invention are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products or devices.

[0032] Unless otherwise stated, if any of the technical solutions disclosed in this invention specify a numerical range, then the disclosed numerical range is a preferred numerical range. Anyone skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this invention discloses only some numerical values ​​to illustrate the technical solutions of this invention. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this invention.

[0033] If the terms "first" or "second" are used in this document to specify the components, those skilled in the art should know that the use of "first" or "second" is merely for the purpose of distinguishing the components in the description, and unless otherwise stated, the above terms have no special meaning.

[0034] The present invention will now be further described in conjunction with the accompanying drawings and embodiments: such as Figure 1-11 The high-efficiency gear strength testing fixture shown includes a gear product 1, which includes a tooth root 2, a tooth 3, and a flat position 4. The tooth 3 is connected to the tooth root 2, the tooth root 2 is connected to the flat position 4, the gear product 1 is connected to a positioning pin 5, the positioning pin 5 is connected to a fixed shaft 6, the fixed shaft 6 is connected to a base 7, the base 7 is connected to a transmission shaft 8, and the transmission shaft 8 is connected to a pin 9.

[0035] In a preferred embodiment, the drive shaft 8 is provided with a hexagonal shaft handle.

[0036] In a preferred embodiment, the hexagonal shaft is connected to the torque meter 10.

[0037] In a preferred embodiment, the drive shaft is connected to the drive shaft gear 11.

[0038] In a preferred embodiment, the transmission shaft gear 11 is connected to the gear product 1 by gear meshing.

[0039] In a preferred embodiment, the bottom of the drive shaft 8 is connected to the top of the pin 9 by an embedded connection.

[0040] In a preferred embodiment, the fixed shaft 6 is connected by a positioning pin 5.

[0041] In a preferred embodiment, the fixed shaft 6 is fixedly connected to the base 7 via a positioning pin 5.

[0042] In a preferred embodiment, the torque meter 10 is provided with a scale.

[0043] In a preferred embodiment, the base 7 has rounded corners around its perimeter.

[0044] In a preferred embodiment, the base 7 and the gear product 1 are detachably connected.

[0045] In a preferred embodiment, the torque meter 10 is provided with an anti-slip device.

[0046] 1. First, insert the positioning pin 5 from the back of the fixed shaft 6, and then insert the fixed shaft 6 into the base 7 from the front. To make it easier to insert the fixed shaft 6 into the base 7 from the front, there are triangular symbols "∆" on both the fixed shaft 6 and the base 7. Align the triangular symbols to insert it. This triangular symbol is also aligned with the flat position of the positioning pin 5.

[0047] 2. The second step is to place the gear product 1 face up on the positioning pin 5. Make sure that the flat part of the gear product 1 is in contact with the flat part of the positioning pin 5 when placing it. So when placing the gear product 1, find the triangle symbol "∆" on the fixed shaft 6. Aligning the flat part on the gear product 1 with the triangle symbol "∆" is the correct direction. The circle symbol "O" on the fixed shaft 6 indicates the gear being aligned and represents the tooth strength being measured.

[0048] 3. The third step is to insert the pin 9 from the back of the drive shaft 8. It is fixed by spot welding during the first assembly. No spot welding is needed afterward. If the pin 9 is damaged later, knock it out from the front hole of the drive shaft 8, replace it with a new pin 9, and then insert the drive shaft 8 with the pin 9 into the round hole of the base 7 from the front.

[0049] 4. Finally, mount the torque meter 10 onto the hexagonal shaft of the drive shaft 8, and then rotate the handle of the torque meter 10. The drive shaft 8 will rotate simultaneously. Since gear product 1 is fixed on the positioning pin 5, while the drive shaft gear 11 on the drive shaft 8 is rotated by the torque meter 10, the drive shaft gear 11 on the drive shaft 8 and the gear teeth 3 of gear product 1 will come into contact and be subjected to force. When the value of the torque meter 10 turns to the set qualified range, remove the torque meter 10 and check whether the gear product is deformed or has broken teeth. This allows for a direct determination of whether the gear teeth of gear product 1 are qualified.

[0050] After the first gear product 1 is inspected, the drive shaft 8 with the pin 9 is removed. Steps 2 to 4 above can be repeated to inspect other gear products 1, thus completing the inspection of other gear products 1.

[0051] Working principle of the invention:

[0052] The high-efficiency gear strength testing fixture of the present invention has a transmission shaft 8 that contacts the F split gear to measure gear strength, and a fixed shaft 6 and a positioning pin 5 for precise positioning of the gear assembly. This fixture is easy to carry and operate. After the F split gear is installed in this fixture, when the torque meter 10 is turned to the required strength value, the gear is directly observed to see if there is deformation or broken teeth. If deformation or broken teeth are found, the product strength test is unqualified; if there is no deformation or broken teeth, the product strength test is qualified. The entire testing process is intuitive and visual, the test results are quick, effective and reliable, and the testing work efficiency is high.

[0053] Implementation Case 1:

[0054] like Figure 1-11 The high-efficiency gear strength testing fixture shown includes a gear product 1, which includes a tooth root 2, a tooth 3, and a flat position 4. The tooth 3 is connected to the tooth root 2, the tooth root 2 is connected to the flat position 4, the gear product 1 is connected to a positioning pin 5, the positioning pin 5 is connected to a fixed shaft 6, the fixed shaft 6 is connected to a base 7, the base 7 is connected to a transmission shaft 8, and the transmission shaft 8 is connected to a pin 9.

[0055] The drive shaft 8 is provided with a hexagonal handle, the hexagonal handle is connected to a torque meter 10, the drive shaft is connected to a drive shaft gear 11, the drive shaft gear and the gear product are connected by gear meshing, the bottom of the drive shaft and the top of the pin are connected by embedding, the fixed shaft is connected by a positioning pin, and the fixed shaft is fixedly connected to the base by the positioning pin.

[0056] First, let me introduce the components of the high-efficiency gear strength testing fixture, which consists of a base 7, a drive shaft 8, a positioning pin 5, a fixed shaft 6, and a pin 9.

[0057] Assembly and testing methods for high-efficiency gear strength testing fixtures:

[0058] First, insert the positioning pin 5 from the back of the fixed shaft 6, and then insert the fixed shaft 6 into the base 7 from the front. To make it easier to insert the fixed shaft 6 into the base 7 from the front, there is a triangle symbol "∆" on both the fixed shaft 6 and the base 7. Align the triangle symbol to insert it. This triangle symbol is also aligned with the flat position of the positioning pin 5.

[0059] The second step is to place the gear product 1 face up on the positioning pin 5. Note that the flat part of the gear product 1 should be in contact with the flat part of the positioning pin 5. So when placing the gear product 1, find the triangle symbol "∆" on the fixed shaft 6. Aligning the flat part on the gear product 1 with the triangle symbol "∆" is the correct direction. The circle symbol "O" on the fixed shaft 6 indicates the gear being aligned and represents the tooth strength being measured.

[0060] The third step is to insert the pin 9 from the back of the drive shaft 8. During the first assembly, it is fixed by spot welding. After that, spot welding is not required. If the pin 9 is damaged later, knock it out from the front hole of the drive shaft 8, replace it with a new pin 9, and then insert the drive shaft 8 with the pin 9 into the round hole of the base 7 from the front.

[0061] 4. Finally, mount the torque meter 10 onto the hexagonal shaft of the drive shaft 8, and then rotate the handle of the torque meter 10. The drive shaft 8 will rotate simultaneously. Since gear product 1 is fixed on the positioning pin 5, while the drive shaft gear 11 on the drive shaft 8 is rotated by the torque meter 10, the drive shaft gear 11 on the drive shaft 8 and the gear teeth 3 of gear product 1 will come into contact and be subjected to force. When the value of the torque meter 10 turns to the set qualified range, remove the torque meter 10 and check whether the gear product is deformed or has broken teeth. This allows for a direct determination of whether the gear teeth of gear product 1 are qualified.

[0062] After the first gear product 1 is inspected, the drive shaft 8 with the pin 9 is removed. Steps 2 to 4 above can be repeated to inspect other gear products 1, thus completing the inspection of other gear products 1. Example

[0063] like Figure 1-11 The high-efficiency gear strength testing fixture shown includes a gear product 1, which includes a tooth root 2, a tooth 3, and a flat position 4. The tooth 3 is connected to the tooth root 2, the tooth root 2 is connected to the flat position 4, the gear product 1 is connected to a positioning pin 5, the positioning pin 5 is connected to a fixed shaft 6, the fixed shaft 6 is connected to a base 7, the base 7 is connected to a transmission shaft 8, and the transmission shaft 8 is connected to a pin 9.

[0064] The drive shaft 8 is provided with a hexagonal handle, the hexagonal handle is connected to a torque meter 10, the drive shaft is connected to a drive shaft gear 11, the drive shaft gear and the gear product are connected by gear meshing, the bottom of the drive shaft and the top of the pin are connected by embedding, the fixed shaft is connected by a positioning pin, and the fixed shaft is fixedly connected to the base by the positioning pin.

[0065] First, let me introduce the components of the high-efficiency gear strength testing fixture, which consists of a base 7, a drive shaft 8, a positioning pin 5, a fixed shaft 6, and a pin 9.

[0066] Assembly and testing methods for high-efficiency gear strength testing fixtures:

[0067] 1. First, insert the positioning pin 5 from the back of the fixed shaft 6, and then insert the fixed shaft 6 into the base 7 from the front. To make it easier to insert the fixed shaft 6 into the base 7 from the front, there are triangular symbols "∆" on both the fixed shaft 6 and the base 7. Align the triangular symbols to insert it. This triangular symbol is also aligned with the flat position of the positioning pin 5.

[0068] 2. The second step is to place the gear product 1 face up on the positioning pin 5. Make sure that the flat part of the gear product 1 is in contact with the flat part of the positioning pin 5 when placing it. So when placing the gear product 1, find the triangle symbol "∆" on the fixed shaft 6. Aligning the flat part on the gear product 1 with the triangle symbol "∆" is the correct direction. The circle symbol "O" on the fixed shaft 6 indicates the gear being aligned and represents the tooth strength being measured.

[0069] 3. The third step is to insert the pin 9 from the back of the drive shaft 8. It is fixed by spot welding during the first assembly. No spot welding is needed afterward. If the pin 9 is damaged later, knock it out from the front hole of the drive shaft 8, replace it with a new pin 9, and then insert the drive shaft 8 with the pin 9 into the round hole of the base 7 from the front.

[0070] 4. Finally, mount the torque meter 10 onto the hexagonal shaft of the drive shaft 8, and then rotate the handle of the torque meter 10. The drive shaft 8 will rotate simultaneously. Since gear product 1 is fixed on the positioning pin 5, while the drive shaft gear 11 on the drive shaft 8 is rotated by the torque meter 10, the drive shaft gear 11 on the drive shaft 8 and the gear teeth 3 of gear product 1 will come into contact and be subjected to force. When the value of the torque meter 10 turns to the set qualified range, remove the torque meter 10 and check whether the gear product is deformed or has broken teeth. This allows for a direct determination of whether the gear teeth of gear product 1 are qualified.

[0071] After the first gear product 1 is inspected, the drive shaft 8 with pin 9 is removed. Steps 2 to 4 above are repeated to inspect other gear products 1. When the torque meter 10 reaches the strength requirement, the gear is directly observed for deformation or broken teeth. If deformation or broken teeth occur, the product strength test is unqualified. If there is no deformation or broken teeth, the product strength test is qualified. The entire inspection process is intuitive and visual, and the inspection results are quick, effective and reliable. The inspection work is highly efficient and has the function of accurately locating the gear placement position. It can quickly detect the strength of the gear teeth 3. With the torque meter 10, it can be determined whether the gear is within the qualified range.

[0072] The main functions of this invention are:

[0073] This invention provides a high-efficiency gear strength testing fixture, which includes a transmission shaft 8 that contacts the F split gear to measure gear strength, and a fixed shaft 6 and positioning pin 5 for precise gear assembly. This fixture is portable and easy to operate. After the F split gear is installed in the fixture, the torque meter 10 is turned to the required strength value. The gear is then directly observed for deformation or tooth breakage. If deformation or tooth breakage occurs, the product strength test is unqualified; if no deformation or tooth breakage occurs, the product strength test is qualified. The entire testing process is intuitive and visual, and the test results are quick, effective, and reliable. It has high testing efficiency, precisely positions the gear, and quickly tests the strength of the gear teeth 3. Combined with the torque meter 10, it can determine whether the gear is within the acceptable range. It is portable and easy to operate.

[0074] In summary, after reading this invention document, those skilled in the art can make various other corresponding modifications to the technical solutions and concepts based on this invention without creative mental effort, and all of these modifications fall within the scope of protection of this invention.

Claims

1. A high-efficiency gear strength testing fixture, characterized in that, The product includes gears, each gear comprising a tooth root, teeth, and a flat surface. The teeth connect to the tooth root, and the tooth root connects to the flat surface. The gear is connected to a positioning pin, which in turn connects to a fixed shaft. The fixed shaft connects to a base, which in turn connects to a drive shaft. The drive shaft is connected to a pin, and the drive shaft has a hexagonal handle connected to a torque meter. The torque meter has a scale. First, the positioning pin is inserted from the back of the fixed shaft, and then the fixed shaft is inserted into the base from the front. To facilitate insertion from the front, both the fixed shaft and the base have a triangular symbol "∆". Aligning the triangular symbol allows for insertion, and this triangular symbol should also be aligned with the flat surface of the positioning pin. When the torque meter is turned to the required strength value, directly observe whether the gear is deformed or has broken teeth. If deformation or broken teeth occur, the product strength test is unqualified. If there is no deformation or broken teeth, the product strength test is qualified.

2. The high-efficiency gear strength testing fixture according to claim 1, characterized in that, The drive shaft is connected to the drive shaft gear.

3. The high-efficiency gear strength testing fixture according to claim 2, characterized in that, The drive shaft gear and the gear product are connected by gear meshing.

4. The high-efficiency gear strength testing fixture according to claim 1, characterized in that, The bottom of the drive shaft is connected to the top of the pin by an embedded connection.

5. The high-efficiency gear strength testing fixture according to claim 1, characterized in that, The fixed shaft is connected by a positioning pin.

6. The high-efficiency gear strength testing fixture according to claim 1, characterized in that, The fixed shaft is fixedly connected to the base via a positioning pin.