A double-tooth synchronous meshing measurement system and method

Abstract

The present invention discloses a double-gear synchronous meshing measurement system and method, which relates to the field of measurement technology and can solve the problem of inaccurate measurement of the meshing amount of double gears by the measuring mechanism in the prior art. An embodiment of the present invention discloses a double-gear synchronous meshing measurement system, comprising a spur gear module for meshing with the driven gear of the double gear and a helical gear assembly for meshing with the driving gear of the double gear, and a torque applying assembly for applying torque to the helical gear assembly, wherein the power output end of the torque applying assembly is transmission-connected with the power input end of the helical gear assembly; further comprising a base body, and a bracket assembly for mounting the double gear and fixed on the top surface of the base body; the spur gear module is fixed on the top surface of the base body, and the helical gear assembly is rotatably connected to the bottom surface of the base body and protrudes upward from the top surface of the base body.

Description

Technical Field

[0001] The present invention relates to the field of measurement technology, and in particular to a double-tooth synchronous meshing measurement system and method. Background Art

[0002] In aerospace and industrial applications, duplex gear sets play a vital role in transmission systems. Especially in aerospace engines and industrial speed reducers, duplex gear sets need to operate with high precision and high reliability.

[0003] The simultaneous meshing of duplex gears refers to the ability of two gears to precisely mesh with their corresponding gears simultaneously during operation. This performance is crucial to the smoothness and efficiency of the transmission system. In the field of aircraft engine repair, the accuracy of gear meshing is directly related to engine performance and safety. Good simultaneous meshing ensures uniform force transmission, reduces unnecessary vibration and noise, and reduces gear wear, extending service life. Effective meshing also improves transmission efficiency and ensures optimal engine operation. Therefore, measuring and adjusting the simultaneous meshing of duplex gears is a key step in aircraft engine repair to proactively identify and correct potential problems, avoid mechanical failures or malfunctions, and ensure safe and reliable flight.

[0004] Traditional measuring devices are usually designed specifically for the gear being measured to ensure the accuracy of the tooth profile and axial position. However, this method cannot simulate the actual working conditions of the duplex gears. As an important component of the planetary gear reducer, the tooth surfaces of the duplex gears are subjected to huge torque during operation, causing deformation of the tooth surfaces, which in turn affects the simultaneous meshing of the duplex gears. Therefore, conventional static measuring devices cannot simulate and reproduce the synchronous meshing performance of the duplex gears under actual working conditions and need to be improved.

[0005] Based on the above background, the inventors have designed a double-tooth synchronous meshing measurement system to solve at least one of the above problems, and thus proposed the present application. Summary of the Invention

[0006] The purpose of this application is to provide a double-tooth synchronous meshing measurement system to solve the problem of inaccurate measurement of the meshing amount of double gears by the measuring mechanism in the prior art.

[0007] In order to solve the above technical problems, the present invention adopts the following solutions:

[0008] In one aspect, the present application provides a synchronous meshing measurement system for duplex gears, comprising a spur gear module for meshing with a driven gear of the duplex gears and a helical gear assembly for meshing with a driving gear of the duplex gears, and a torque applying assembly for applying torque to the helical gear assembly, wherein a power output end of the torque applying assembly is in transmission connection with a power input end of the helical gear assembly;

[0009] It also includes a base body, and a bracket assembly for mounting the duplex gear and fixed on the top surface of the base body;

[0010] The straight tooth module is fixed to the top surface of the base body, and the helical tooth assembly is rotatably connected to the bottom surface of the base body and protrudes upward from the top surface of the base body.

[0011] Optionally, the spur gear module includes an integrated spur gear base and a spur gear body, and the top of the spur gear body is provided with a spur gear structure for meshing with the driven gear of the duplex gear;

[0012] A connecting hole is provided on the spur-tooth base, and the spur-tooth base is detachably fixedly connected to the base body through the connecting hole.

[0013] Optionally, it further includes a measuring meter mounting base fixed on the top surface of the base body;

[0014] The bracket assembly includes a first bracket and a second bracket arranged in parallel, and the first bracket and the second bracket are respectively provided with a first mounting groove and a second mounting groove of the same height;

[0015] The first bracket is located between the measuring table mounting seat and the straight tooth module, and the first bracket is also provided with a measuring channel groove for measuring the passage of the laser line;

[0016] The measuring channel groove is located at the bottom of the first mounting groove, and the maximum width of the measuring channel groove is greater than the width of the spur gear body.

[0017] Optionally, the first mounting groove and the second mounting groove are both V-shaped grooves;

[0018] The longitudinal section of the measuring channel groove is any one of a U-shaped groove, a rectangular groove or an arc shape.

[0019] Optionally, the top of the measuring meter mounting base is provided with a measuring head through hole and mounting screw holes located on both sides of the measuring head through hole;

[0020] A measuring head accommodating hole is also provided on the side of the measuring meter mounting base. The measuring head is connected to the measuring head accommodating hole through the hole. The measuring head accommodating hole and the bottom of the measuring channel groove are located at the same horizontal height.

[0021] Optionally, the base body is provided with a base window, and a bearing seat provided on the bottom surface of the base body;

[0022] The helical gear assembly includes a transmission rod and a helical gear body that are coaxially fixedly connected. Both ends of the transmission rod are installed on the bearing seat. The helical gear body is rotatably connected to the bottom surface of the base body through the transmission rod and the bearing seat. The top of the helical gear body protrudes from the top surface of the base body through the base window. The circumference of the helical gear body is distributed with a number of helical gear structures that are adapted to the driving gear of the duplex gear.

[0023] Optionally, the torque applying assembly includes a fixedly connected transmission worm and a rotating handle, and the transmission worm is engaged with the helical tooth structure at the bottom of the helical tooth body.

[0024] Optionally, a torque sensor for measuring torque is further included. The torque sensor is coaxially fixedly connected to one end of the transmission rod, and the other end of the torque sensor is provided with an anti-torsion structure for preventing the torque sensor from rotating.

[0025] Optionally, it further comprises a bottom box body with an opening at the top, and the base body is installed on the top of the bottom box body;

[0026] A display module is also provided on the front side of the bottom box body, and the signal output end of the torque sensor is communicatively connected to the signal input end of the display module;

[0027] The inner side surface of the bottom box body is also provided with a prism mounting hole. The anti-twist structure is a prism structure with edges, and the anti-twist structure is installed in the prism mounting hole.

[0028] On the other hand, the present application provides a measurement method of a double-tooth synchronous meshing measurement system as described above, comprising the following steps:

[0029] S1. Install the duplex gear on the bracket assembly so that the driven gear meshes with the spur gear module and the driving gear meshes with the helical gear assembly;

[0030] S2. Apply torque to the helical gear assembly through the torque applying assembly until a set torque value is reached;

[0031] S3. Measure and record the meshing data between the driven gear of the duplex gear and the spur gear module under the torque value set in S2;

[0032] S4, repeating the above S2 and S3 according to multiple torque values ​​preset in advance;

[0033] S5. Based on the multiple torque values ​​and their corresponding meshing data in S4, fit the meshing curve of the duplex gear under different torque conditions.

[0034] Beneficial effects of the present invention:

[0035] 1. The present application sets a spur gear module and a helical gear assembly to mesh with the driven gear and the driving gear of the duplex gear respectively. At the same time, the spur gear module is fixedly connected to the base body, and the helical gear assembly is rotatably connected to the base body. The present application also sets a torque application assembly so that the helical gear assembly can be applied with a certain torque, so that when performing engagement measurement, the driving gear of the duplex gear is in a simulated working condition under torque. Compared with the traditional direct engagement measurement, the measurement result is more consistent with the engagement data of the duplex gear under the actual working condition under torque, and guides subsequent operations such as gasket thickness adjustment, effectively solving the problem of inaccurate measurement of the engagement amount of the duplex gear by the measuring mechanism in the prior art.

[0036] 2. The spur gear module of the present application is detachably connected to the base body, and at the same time, the helical gear assembly is rotatably connected to the base body, so that the helical gear assembly and the spur gear module that are meshed with the driving gear and the driven gear of the duplex gear can be removed from the base body, and replaced with the helical gear assembly and the spur gear module that match the duplex gears with other tooth profile parameters, so that duplex gears with different tooth profiles and parameters can be measured on the measuring platform disclosed in the present application, thereby improving the adaptability of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the three-dimensional explosion structure of Example 1 of the present application.

[0038] Figure 2 This is a schematic diagram of the three-dimensional structure after removing the bottom box of Example 1 of the present application.

[0039] Figure 3 This is a schematic diagram of the main structure of Example 1 of the present application after removing the bottom box.

[0040] Figure 4 This is a schematic diagram of the top view of the structure after removing the bottom box of Example 1 of the present application.

[0041] Figure 5 This is a schematic diagram of the three-dimensional structure of the straight tooth module in Example 1 of the present application.

[0042] Description of reference numerals:

[0043] 1-base body, 11-base window, 12-bearing seat, 13-mounting through hole, 2-straight tooth module, 21-straight tooth base, 211-connecting hole, 22-straight tooth body, 221-straight tooth structure, 3-helical tooth assembly, 31-helical tooth body, 311-helical tooth structure, 312-center hole, 32-transmission rod, 4-bracket assembly, 41-second bracket, 411-second mounting slot, 42-first bracket, 421-first mounting slot, 422-measuring channel groove, 5-measuring table mounting seat, 51-measuring head accommodating hole, 52-mounting screw hole, 53-measuring head through hole, 6-torque sensor, 61-anti-twist structure, 7-torque application assembly, 71-transmission worm, 72-turning handle, 8-bottom box body, 81-handle mounting hole, 9-display module. DETAILED DESCRIPTION

[0044] The present invention will be further described in detail below with reference to the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0045] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0046] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "having," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific contexts.

[0047] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0048] Example 1:

[0049] like Figures 1 to 5As shown, the present application provides a duplex gear synchronous meshing measurement system, comprising a spur gear module 2 for meshing with a driven gear of the duplex gear and a helical gear assembly 3 for meshing with a driving gear of the duplex gear, and a torque applying assembly 7 for applying torque to the helical gear assembly 3, wherein the power output end of the torque applying assembly 7 is transmission-connected to the power input end of the helical gear assembly 3;

[0050] It also includes a base body 1, and a bracket assembly 4 for mounting the double gear and fixed on the top surface of the base body 1;

[0051] The straight tooth module 2 is fixed to the top surface of the base body 1 , and the helical tooth assembly 3 is rotatably connected to the bottom surface of the base body 1 and protrudes upward from the top surface of the base body 1 .

[0052] In this embodiment, a spur gear module 2 and a helical gear assembly 3 are respectively engaged with the driven gear and the driving gear of the duplex gear. At the same time, the spur gear module 2 is fixedly connected to the base body 1, and the helical gear assembly 3 is rotatably connected to the base body 1. The present application also provides a torque applying assembly 7, so that the helical gear assembly 3 can be applied with a certain torque, so that when performing engagement measurement, the driving gear of the duplex gear is in a simulated working condition under torque. Compared with the traditional direct engagement measurement, the measurement result is more consistent with the engagement data of the duplex gear under the actual working condition under torque, and guides subsequent operations such as gasket thickness adjustment, effectively solving the problem of inaccurate measurement of the engagement amount of the duplex gear by the measuring mechanism in the prior art.

[0053] Specifically, in this embodiment, Figure 5 As shown, the spur gear module 2 includes an integrated spur gear base 21 and a spur gear body 22 , and a spur gear structure 221 for meshing with the driven gear of the duplex gear is provided on the top of the spur gear body 22 ;

[0054] A connecting hole 211 is provided on the spur base 21, and the spur base 21 is detachably fixedly connected to the base body 1 through the connecting hole 211. In this embodiment, the spur base 21 and the base body 1 are detachably fixed together by bolts passing through the connecting hole 211. The spur module 2 of this embodiment is detachably connected to the base body 1. At the same time, the helical gear assembly 3 is rotatably connected to the base body 1, so that the helical gear assembly 3 and the spur gear module 2 that are meshed with the driving gear and the driven gear of the duplex gear can be removed from the base body 1, and the helical gear assembly 3 and the spur gear module 2 that match the duplex gear with other tooth profile parameters can be replaced, so that duplex gears with different tooth profiles and parameters can be measured on the measuring platform disclosed in the present application, thereby improving the adaptability of the present application.

[0055] Specifically, in this embodiment, Figures 1 to 4 As shown, it also includes a measuring meter mounting base 5 fixed on the top surface of the base body 1;

[0056] The bracket assembly 4 includes a first bracket 42 and a second bracket 41 arranged in parallel. The first bracket 42 and the second bracket 41 are respectively provided with a first mounting groove 421 and a second mounting groove 411 of the same height.

[0057] The first bracket 42 is located between the measuring meter mounting base 5 and the straight tooth module 2. The first bracket 42 is also provided with a measuring channel groove 422 for measuring the passage of the laser line;

[0058] The measuring channel groove 422 is located at the bottom of the first mounting groove 421 , and the maximum width of the measuring channel groove 422 is greater than the width of the spur gear body 22 .

[0059] In this embodiment, by providing a first mounting groove 421 and a second mounting groove 411 on the first bracket 42 and the second bracket 41, the two ends of the double gear can be placed on the first mounting groove 421 and the second mounting groove 411 respectively, and a measuring channel groove 422 is provided at the bottom of the first mounting groove 421, so that the gear shaft portion of the double gear placed on the first mounting groove 421 is in a suspended state, and the measuring channel groove 422 is located below it, so that when performing meshing measurement, the laser measurement light can reach the measurement area through the measuring channel groove 422.

[0060] Specifically, in this embodiment, Figure 1 and Figure 2 As shown, the first mounting groove 421 and the second mounting groove 411 are both V-shaped grooves;

[0061] The longitudinal section of the measuring channel groove 422 is a U-shaped groove. Technicians can set the measuring channel groove 422 to a rectangular groove or an arc shape according to their needs, which will not be described here.

[0062] Specifically, in this embodiment, Figures 1 to 4 As shown, the top of the measuring meter mounting base 5 is provided with a measuring head through hole 53 and mounting screw holes 52 located on both sides of the measuring head through hole 53;

[0063] A measuring head receiving hole 51 is further provided on the side of the measuring meter mounting base 5 . The measuring head is connected to the measuring head receiving hole 51 through a hole 53 . The measuring head receiving hole 51 and the bottom of the measuring channel groove 422 are at the same level.

[0064] Specifically, in this embodiment, Figure 1 As shown, the base body 1 is provided with a base window 11 and a bearing seat 12 provided on the bottom surface of the base body 1;

[0065] The helical gear assembly 3 includes a coaxially fixed transmission rod 32 and a helical gear body 31. Both ends of the transmission rod 32 are mounted on the bearing seat 12. The helical gear body 31 is rotatably connected to the bottom surface of the base body 1 via the transmission rod 32 and the bearing seat 12. The top of the helical gear body 31 protrudes from the top surface of the base body 1 through the base window 11. A plurality of helical gear structures 311 are distributed around the helical gear body 31, which are compatible with the driving gear of the duplex gear. In this embodiment, the helical gear body 31 is also provided with a center hole 312, through which the helical gear body 31 is fixedly connected to the transmission rod 32.

[0066] Specifically, in this embodiment, Figures 1 to 3 As shown, the torque applying assembly 7 includes a fixedly connected transmission worm 71 and a rotating handle 72, and the transmission worm 71 is engaged with the helical gear structure 311 at the bottom of the helical gear body 31. The torque applying assembly 7 in this embodiment can also be replaced with other power structures such as a drive motor, which will not be described here.

[0067] Specifically, in this embodiment, Figure 1 As shown, it also includes a torque sensor 6 for measuring torque. The torque sensor 6 is coaxially fixedly connected to one end of the transmission rod 32, and the other end of the torque sensor 6 is provided with an anti-twist structure 61 for preventing it from rotating. By providing the torque sensor 6, it is convenient to accurately monitor and control the torque applied by the helical gear assembly 3 to the duplex gear.

[0068] Specifically, in this embodiment, Figure 1 As shown, it also includes a bottom box body 8 with an open top, and the base body 1 is installed on the top of the bottom box body 8;

[0069] A display module 9 is also provided on the front side of the bottom box body 8, and the signal output end of the torque sensor 6 is communicatively connected to the signal input end of the display module 9;

[0070] The inner side surface of the bottom box body 8 is further provided with a prism mounting hole. The anti-twist structure 61 is a prism structure with edges. The anti-twist structure 61 is installed in the prism mounting hole.

[0071] In this embodiment, a handle mounting hole 81 is further provided on the front side of the bottom box body 8 , and the rotating handle 72 is mounted on the front side of the bottom box body 8 through the handle mounting hole 81 .

[0072] Example 2:

[0073] This embodiment provides a measurement method for a double-tooth synchronous meshing measurement system as described above, comprising the following steps:

[0074] S1. Install the duplex gear on the bracket assembly 4 so that the driven gear meshes with the spur gear module 2 and the driving gear meshes with the helical gear assembly 3;

[0075] S2, applying torque to the helical gear assembly 3 through the torque applying assembly 7 until the set torque value is reached;

[0076] S3. Measure and record the meshing data between the driven gear of the duplex gear and the spur gear module 2 under the torque value set in S2;

[0077] S4, repeating the above S2 and S3 according to multiple torque values ​​preset in advance;

[0078] S5. Based on the multiple torque values ​​and their corresponding meshing data in S4, fit the meshing curve of the duplex gear under different torque conditions.

[0079] It will be understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, and the present invention is not limited thereto. Those skilled in the art will be able to make various modifications and improvements without departing from the spirit and substance of the present invention, and such modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A double-tooth synchronous meshing measurement system, characterized in that: The invention comprises a spur gear module (2) for meshing with a driven gear of a duplex gear, a helical gear assembly (3) for meshing with a driving gear of the duplex gear, and a torque applying assembly (7) for applying torque to the helical gear assembly (3), wherein a power output end of the torque applying assembly (7) is in transmission connection with a power input end of the helical gear assembly (3); It also includes a base body (1), and a bracket assembly (4) for mounting the double gear and fixed on the top surface of the base body (1); The straight tooth module (2) is fixed to the top surface of the base body (1), and the helical tooth assembly (3) is rotatably connected to the bottom surface of the base body (1) and protrudes upward from the top surface of the base body (1); It also includes a measuring meter mounting seat (5) fixed on the top surface of the base body (1); The bracket assembly (4) comprises a first bracket (42) and a second bracket (41) arranged in parallel, and the first bracket (42) and the second bracket (41) are respectively provided with a first mounting groove (421) and a second mounting groove (411) of the same height; The first bracket (42) is located between the measuring table mounting seat (5) and the straight tooth module (2), and the first bracket (42) is also provided with a measuring channel groove (422) for measuring the passage of the laser line; The measuring channel groove (422) is located at the bottom of the first mounting groove (421), and the maximum width of the measuring channel groove (422) is greater than the width of the straight tooth body (22); The gear shaft portion of the double gear placed on the first mounting groove (421) is in a suspended state, with a measuring channel groove (422) below it, so that when performing meshing measurement, the laser measurement light can reach the measurement area through the measuring channel groove (422); The top of the measuring meter mounting base (5) is provided with a measuring head through hole (53) and mounting screw holes (52) located on both sides of the measuring head through hole (53); A measuring head accommodating hole (51) is further provided on the side of the measuring meter mounting seat (5), and the measuring head is communicated with the measuring head accommodating hole (51) through a hole (53), and the measuring head accommodating hole (51) and the bottom of the measuring channel groove (422) are located at the same horizontal height.

2. A double-tooth synchronous meshing measurement system according to claim 1, characterized in that: The spur gear module (2) comprises an integrated spur gear base (21) and a spur gear body (22), wherein the top of the spur gear body (22) is provided with a spur gear structure (221) for meshing with the driven gear of the duplex gear; A connecting hole (211) is provided on the spur-tooth base (21), and the spur-tooth base (21) is detachably fixedly connected to the base body (1) via the connecting hole (211).

3. A double-tooth synchronous meshing measurement system according to claim 2, characterized in that: The first mounting groove (421) and the second mounting groove (411) are both V-shaped grooves; The longitudinal section shape of the measuring channel groove (422) is any one of a U-shaped groove, a rectangular groove, or an arc shape.

4. The double-tooth synchronous meshing measurement system according to claim 1, characterized in that: The base body (1) is provided with a base window (11), and a bearing seat (12) is provided on the bottom surface of the base body (1); The helical gear assembly (3) comprises a transmission rod (32) and a helical gear body (31) that are coaxially fixedly connected. Both ends of the transmission rod (32) are mounted on a bearing seat (12). The helical gear body (31) is rotatably connected to the bottom surface of the base body (1) through the transmission rod (32) and the bearing seat (12). The top of the helical gear body (31) protrudes from the top surface of the base body (1) through the base window (11). A plurality of helical gear structures (311) that are adapted to the driving gear of the duplex gear are distributed around the circumference of the helical gear body (31).

5. The double-tooth synchronous meshing measurement system according to claim 4, characterized in that: The torque applying assembly (7) comprises a fixedly connected transmission worm (71) and a rotating handle (72), wherein the transmission worm (71) engages with the helical tooth structure (311) at the bottom of the helical tooth body (31).

6. The double-tooth synchronous meshing measurement system according to claim 4, characterized in that: It also includes a torque sensor (6) for measuring torque, wherein the torque sensor (6) is coaxially fixedly connected to one end of the transmission rod (32), and the other end of the torque sensor (6) is provided with an anti-twist structure (61) for preventing the torque sensor (6) from rotating.

7. A double-tooth synchronous meshing measurement system according to claim 6, characterized in that: It also includes a bottom box body (8) with an opening at the top, and the base body (1) is mounted on the top of the bottom box body (8); A display module (9) is also provided on the front side of the bottom box body (8), and the signal output end of the torque sensor (6) is communicatively connected to the signal input end of the display module (9); The inner side surface of the bottom box body (8) is also provided with a prism mounting hole, and the anti-twist structure (61) is a prism structure with edges, and the anti-twist structure (61) is installed in the prism mounting hole.

8. A measurement method for a double-tooth synchronous meshing measurement system according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Install the double gear on the bracket assembly (4) so ​​that the driven gear is meshed with the spur gear module (2) and the driving gear is meshed with the helical gear assembly (3); S2, applying torque to the helical gear assembly (3) through the torque applying assembly (7) until a set torque value is reached; S3, measuring and recording the meshing data between the driven gear of the duplex gear and the spur gear module (2) at the torque value set in S2; S4, repeating the above S2 and S3 according to multiple torque values ​​preset in advance; S5. Based on the multiple torque values ​​and their corresponding meshing data in S4, fit the meshing curve of the duplex gear under different torque conditions.

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