Device for testing slipping torque of engine overload clutch

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By providing an engine overload clutch slip torque test device including an adapter plate and fastening assembly, the problem of difficult to ensure measurement accuracy and inconvenient operation in the prior art is solved, and a more efficient testing process is achieved.

CN222461028UActive Publication Date: 2025-02-11CAIHONG DRONE TECH CO LTD

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Patent Information

Application Number: CN202421200963.1
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-29
Publication Date: 2025-02-11
Estimated Expiration: 2034-05-29

AI Technical Summary

Technical Problem

In the prior art, when measuring the slip torque of the engine overload clutch, the measurement accuracy is difficult to ensure, and the operation is inconvenient and the working efficiency is low.

Method used

An engine overload clutch slip torque test device is provided, including an adapter plate and a fastening assembly, connected to the paddle disc through a positioning hole and a wrench connection hole, and the test is achieved in conjunction with a torque wrench.

Benefits of technology

The device can test the slip torque of the engine overload clutch more accurately, conveniently and quickly, overcoming the shortcomings of the old test tooling, with a simple structure, stable work, convenient operation, high testing efficiency, and compact and portable.

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Abstract

The utility model provides an engine overload clutch slipping torque testing device, and relates to the overload clutch slipping torque testing technology field, an output end of an engine is connected with a paddle disc, the engine overload clutch slipping torque testing device comprises an adapter plate, a positioning hole and a wrench connecting hole are coaxially arranged in the adapter plate, the positioning hole is used for being matched with a boss of the paddle disc in a plug-in mode, and the wrench connecting hole is used for being matched with the boss of the paddle disc. The wrench connecting hole is used for being matched with a sleeving part of a torque wrench in an inserting manner; the fastening assembly comprises a rod piece, one end of the rod piece is connected with the adapter plate, the other end of the rod piece protrudes out of the surface of the side, close to the positioning hole, of the adapter plate, and the other end of the rod piece is used for being connected with a propeller disc; the problems that the measurement precision is difficult to guarantee, the operation is inconvenient and the working efficiency is low when the slipping torque of the engine overload clutch is measured in the prior art are solved.

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Description

Technical Field

[0001] The utility model belongs to the technical field of overload clutch slip torque testing, and more specifically relates to an engine overload clutch slip torque testing device. Background Art

[0002] During regular maintenance of aviation piston engines, it is necessary to test the slip torque of the engine overload clutch. The purpose is to analyze the wear of the metal spring sheet inside the overload clutch, so as to determine whether the overload clutch can play a corresponding role when the engine encounters an emergency. The overload clutch test fixture widely used at present is a hollow tube, one end of which is connected to the engine, and the other end is mounted with a spring dynamometer. During the test, this test fixture needs to ensure that the force direction of the spring dynamometer is always around the tangent direction of the rotation of the test piece to ensure the correct reading. This is difficult to achieve in actual operation, so it is necessary to increase the measurement accuracy by taking the average value through multiple measurements, which has low work efficiency and is time-consuming and labor-intensive to measure. Utility Model Content

[0003] The purpose of the utility model is to provide an engine overload clutch slip torque testing device to address the deficiencies in the prior art, thereby solving the problems in the prior art of measuring the engine overload clutch slip torque that the measurement accuracy is difficult to ensure, the operation is inconvenient, and the work efficiency is low.

[0004] In order to achieve the above object, the utility model provides an engine overload clutch slip torque test device, the output end of the engine is connected to a propeller disc, comprising:

[0005] An adapter plate, wherein a positioning hole and a wrench connection hole are coaxially opened inside the adapter plate, wherein the positioning hole is used for plug-in cooperation with the boss of the propeller disc, and the wrench connection hole is used for plug-in cooperation with the sleeve portion of the torque wrench;

[0006] A fastening assembly, wherein the fastening assembly includes a rod, one end of the rod is connected to the adapter plate, the other end of the rod protrudes from a side surface of the adapter plate close to the positioning hole, and the other end of the rod is used to be connected to the paddle disc.

[0007] Optionally, a protrusion is provided on one side of the adapter plate, and the wrench connection hole is opened in the protrusion.

[0008] Optionally, the connecting hole is a square hole, and the positioning hole is a round hole.

[0009] Optionally, two fastening assemblies are provided, and the two fastening assemblies are arranged opposite to each other on both sides of the wrench connecting hole.

[0010] Optionally, a positioning plate is provided at one end of the rod, the adapter plate is provided with a first through hole, the rod passes through the first through hole, and the positioning plate is fitted with the adapter plate and screwed to the adapter plate.

[0011] Optionally, the positioning plate is provided with a first pin hole, the adapter plate is provided with a second pin hole, and positioning pins are inserted into the first pin hole and the second pin hole.

[0012] Optionally, the adapter plate is provided with a threaded hole, and the positioning plate is provided with a second through hole, and the second through hole cooperates with the threaded hole so that the positioning plate is connected to the adapter plate by bolts.

[0013] Optionally, two first pin holes are provided, and two second through holes are provided, and the two first pin holes are relatively arranged on both sides of the first through hole, and the two second through holes are relatively arranged on both sides of the first through hole, so that the two first pin holes and the two second through holes form a matrix arrangement.

[0014] Optionally, the other end of the rod is provided with a smooth rod portion and a threaded portion in sequence from the inside to the outside, the smooth rod portion is used to pass through the third through hole on the paddle disc, the diameter of the smooth rod portion is smaller than the diameter of the rod, and the threaded portion is connected to the nut.

[0015] Optionally, the positioning pin is a large-head pin.

[0016] The utility model provides an engine overload clutch slip torque test device, which has the beneficial effects of: the engine overload clutch slip torque test device has an adapter plate and a fastening assembly, the positioning hole and the wrench connecting hole on the adapter plate can be connected to the boss of the propeller disk respectively to realize the positioning of the adapter plate and can be connected to the sleeve connection part of the torque wrench to realize the conversion of the torque wrench, and the fastening assembly fastens the adapter plate to the propeller disk on the basis of the positioning cooperation between the positioning hole and the boss of the propeller disk; during the test, the output end of the engine is locked, the set torque value of the torque wrench is set, and the torque wrench is turned slowly and as evenly as possible, so that the engine overload clutch slip torque can be tested more accurately, conveniently and quickly; the engine overload clutch slip torque test device overcomes the shortcomings of the old test tooling, has a simple structure, stable operation, convenient operation, high test efficiency, and is compact and portable.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0019] Figure 1 A cross-sectional structural schematic diagram of an engine overload clutch slip torque testing device according to an embodiment of the utility model is shown.

[0020] Figure 2 A schematic top view of the structure of an engine overload clutch slip torque testing device according to an embodiment of the utility model is shown.

[0021] Figure 3 A schematic structural diagram of a fastening assembly of an engine overload clutch slip torque test device according to an embodiment of the utility model is shown.

[0022] Figure 4 Shows Figure 3 Schematic diagram of the side structure.

[0023] Figure 5 A schematic structural diagram of a positioning pin of an engine overload clutch slip torque test device according to an embodiment of the utility model is shown.

[0024] Description of reference numerals:

[0025] 1. Adapter plate; 2. Positioning hole; 3. Wrench connection hole; 4. Rod; 5. Boss; 6. Positioning plate; 7. First through hole; 8. First pin hole; 9. Second pin hole; 10. Positioning pin; 11. Threaded hole; 12. Second through hole; 13. Bolt; 14. Bare rod; 15. Threaded portion; 16. Nut. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0027] like Figures 1 to 5 As shown, the utility model provides an engine overload clutch slip torque test device, the output end of the engine is connected to a propeller disc, comprising:

[0028] An adapter plate 1, a positioning hole 2 and a wrench connection hole 3 are coaxially opened inside the adapter plate 1, the positioning hole 2 is used for plug-in cooperation with the boss of the propeller disc, and the wrench connection hole 3 is used for plug-in cooperation with the sleeve part of the torque wrench;

[0029] The fastening assembly includes a rod 4, one end of which is connected to the adapter plate 1, and the other end of the rod 4 protrudes from a side surface of the adapter plate 1 close to the positioning hole 2, and the other end of the rod 4 is used to connect to the propeller disc.

[0030] Specifically, in order to solve the problems in the prior art that the measurement accuracy of the engine overload clutch slip torque is difficult to ensure, the operation is inconvenient and the work efficiency is low; the engine overload clutch slip torque test device provided by the utility model comprises an adapter plate 1 and a fastening assembly, the positioning hole 2 and the wrench connecting hole 3 on the adapter plate 1 can be connected with the boss of the propeller disk respectively to realize the positioning of the adapter plate 1 and can be connected with the sleeve connection part of the torque wrench to realize the conversion of the torque wrench, on the basis of the positioning cooperation between the positioning hole 2 and the boss of the propeller disk, the fastening assembly fastens the adapter plate 1 to the propeller disk; during the test, the output end of the engine is locked, the set torque value of the torque wrench is set, and the torque wrench is turned slowly and as evenly as possible, so that the engine overload clutch slip torque can be tested more accurately, conveniently and quickly; the engine overload clutch slip torque test device overcomes the shortcomings of the old test tooling, has a simple structure, stable operation, convenient operation, high test efficiency, and is compact and portable.

[0031] Optionally, a protrusion 5 is provided on one side of the adapter plate 1 , and the wrench connecting hole 3 is opened in the protrusion 5 .

[0032] Specifically, the protrusion 5 is arranged so that the position where the adapter plate 1 and the torque wrench are connected is protruded outward, which is convenient for the rotation of the torque wrench and can avoid mechanical interference with other components when the torque wrench is rotated.

[0033] Optionally, the connecting hole is a square hole, and the positioning hole 2 is a round hole.

[0034] Specifically, a square columnar socket portion is provided at the end of the torque wrench, which can be inserted into the wrench connecting hole 3 and cooperate with the wrench connecting hole 3 for transmission. A circular boss is provided at the center position of the propeller disc, which can be inserted into the positioning hole 2 to realize the positioning of the adapter plate 1, thereby ensuring that the torque wrench rotates coaxially with the propeller disc and ensuring the test accuracy.

[0035] Optionally, two fastening assemblies are provided, and the two fastening assemblies are arranged oppositely on two sides of the wrench connecting hole 3 .

[0036] Specifically, the two fastening components are relatively arranged on both sides of the raised portion 5, which can ensure the stability of the connection between the adapter plate 1 and the paddle disc.

[0037] Optionally, a positioning plate 6 is provided at one end of the rod, the adapter plate 1 is provided with a first through hole 7, the rod passes through the first through hole 7, the positioning plate 6 is fitted with the adapter plate 1, and is screwed to the adapter plate 1.

[0038] Specifically, the positioning plate 6 is fitted with the adapter plate 1 and screwed to the adapter plate 1 to fix one end of the rod on the adapter plate 1 .

[0039] Optionally, the positioning plate 6 is provided with a first pin hole 8 , the adapter plate 1 is provided with a second pin hole 9 , and positioning pins 10 are inserted into the first pin hole 8 and the second pin hole 9 .

[0040] Specifically, the provision of the first pin hole 8 and the second pin hole 9 enables the positioning plate 6 to be positioned by inserting the positioning pin 10 when the positioning plate 6 is connected to the adapter plate 1 , thereby achieving positioning of the rod 4 .

[0041] Optionally, the adapter plate 1 is provided with a threaded hole 11 , and the positioning plate 6 is provided with a second through hole 12 , and the second through hole 12 cooperates with the threaded hole 11 , so that the positioning plate 6 is connected to the adapter plate 1 through a bolt 13 .

[0042] Specifically, the bolt 13 passes through the second through hole 12 and is screwed into the threaded hole 11 , so as to fasten the positioning plate 6 and further fasten the rod 4 .

[0043] Optionally, two first pin holes 8 are provided and two second through holes 12 are provided. The two first pin holes 8 are relatively arranged on both sides of the first through hole 7, and the two second through holes 12 are relatively arranged on both sides of the first through hole 7, so that the two first pin holes 8 and the two second through holes 12 form a matrix arrangement.

[0044] Specifically, such an arrangement is beneficial for the positioning pins 10 to position the positioning plate 6 , and for the bolts 13 to fasten the positioning plate 6 to the adapter plate 1 .

[0045] Optionally, the other end of the rod is provided with a smooth rod portion 14 and a threaded portion 15 in sequence from the inside to the outside, the smooth rod portion 14 is used to pass through the third through hole on the propeller disc, the diameter of the smooth rod portion 14 is smaller than the diameter of the rod, and the threaded portion 15 is connected to the nut 16.

[0046] Specifically, a step is formed between the bare rod portion 14 and the rod, and the other end of the rod can be fixedly connected to the propeller disc through the step and the nut 16.

[0047] In this embodiment, the bare rod portion 14 is clearance-matched with the third through hole on the propeller disk, thereby reducing the circumferential relative shaking amount after the adapter plate 1 is docked with the propeller disk.

[0048] Optionally, the positioning pin 10 is a large-head pin.

[0049] Specifically, the positioning pin 10 can be a large-head pin, which passes through the first pin hole 8 and the second pin hole 9 in sequence to achieve positioning of the positioning plate 6.

[0050] In summary, when the engine overload clutch slip torque test device provided by the utility model is used, take a test as an example: the engine overload clutch slip torque test device is installed on the engine propeller disc, fastened with a flat gasket and an ordinary nut 16, and the crankshaft plug pin is used to lock (lock) the engine to prevent rotation; because the qualified range of the slip torque of the overload clutch friction plate inside the engine gearbox that we want to measure is 600N.m-800N.m, the set torque value of the torque wrench is first set to 600N.m; then the sleeve part of the torque wrench head is plugged into the wrench connecting hole 3, and then the torque wrench is slowly and evenly pulled. At this time, if the torque reaches 600N.m and the torque wrench head is loosened (twisted) because the force of the unloading mechanism reaches the set value, and the overload clutch does not slip, it means that the overload clutch slip torque is greater than 600N.m; otherwise, it means that the overload clutch slip torque is less than the minimum specified value and is judged to be unqualified. Then use the same method, with 10N.m or 20N.m as the advanced unit, and gradually increase the set torque value to test the slip torque of the overload clutch. When the overload clutch starts to slip at a certain set torque value, and the torque wrench head does not loosen (twist), read the set torque value of the torque wrench, which is the slip torque value of the overload clutch. When the set torque value of the torque wrench is set to 800N.m for testing, the torque wrench head loosens (twists) because the force of the unloading mechanism reaches the set value, and the overload clutch does not slip, indicating that the slip torque of the overload clutch is greater than 800N.m, which exceeds the reasonable range and is judged as unqualified.

[0051] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. An engine overload clutch slip torque test device, wherein the output end of the engine is connected to a propeller disk, characterized in that: include: An adapter plate, wherein a positioning hole and a wrench connection hole are coaxially opened inside the adapter plate, wherein the positioning hole is used for plug-in cooperation with the boss of the propeller disc, and the wrench connection hole is used for plug-in cooperation with the sleeve portion of the torque wrench; A fastening assembly, wherein the fastening assembly includes a rod, one end of the rod is connected to the adapter plate, the other end of the rod protrudes from a side surface of the adapter plate close to the positioning hole, and the other end of the rod is used to be connected to the paddle disc.

2. The engine overload clutch slip torque test device according to claim 1, characterized in that: A protrusion is provided on one side of the adapter plate, and the wrench connection hole is opened in the protrusion.

3. The engine overload clutch slip torque test device according to claim 1, characterized in that: The connecting hole is a square hole, and the positioning hole is a round hole.

4. The engine overload clutch slip torque test device according to claim 1, characterized in that: There are two fastening assemblies, and the two fastening assemblies are arranged oppositely on both sides of the wrench connecting hole.

5. The engine overload clutch slip torque test device according to claim 1, characterized in that: A positioning plate is provided at one end of the rod, the adapter plate is provided with a first through hole, the rod passes through the first through hole, the positioning plate is fitted with the adapter plate, and is screwed to the adapter plate.

6. The engine overload clutch slip torque test device according to claim 5, characterized in that: The positioning plate is provided with a first pin hole, the adapter plate is provided with a second pin hole, and positioning pins are inserted into the first pin hole and the second pin hole.

7. The engine overload clutch slip torque test device according to claim 6, characterized in that: The adapter plate is provided with a threaded hole, and the positioning plate is provided with a second through hole, and the second through hole cooperates with the threaded hole so that the positioning plate is connected to the adapter plate by bolts.

8. The engine overload clutch slip torque test device according to claim 7, characterized in that: There are two first pin holes and two second through holes. The two first pin holes are relatively arranged on both sides of the first through hole, and the two second through holes are relatively arranged on both sides of the first through hole, so that the two first pin holes and the two second through holes form a matrix arrangement.

9. The engine overload clutch slip torque test device according to claim 1, characterized in that: The other end of the rod is provided with a smooth rod portion and a threaded portion in sequence from inside to outside, the smooth rod portion is used to pass through the third through hole on the paddle disc, the diameter of the smooth rod portion is smaller than the diameter of the rod, and the threaded portion is connected to the nut.

10. The engine overload clutch slip torque test device according to claim 6, characterized in that: The positioning pin is a large head pin.