Turboshaft engine starting and accessory drive system static torque test fixture system

Abstract

The present invention provides a static torsion test tooling system for a turboshaft engine starting and accessory transmission system, and relates to the technical field of static torsion testing. The present invention includes a base, and the output ends of the electric slide and the torsion motor are respectively provided with clamping devices, and the clamping device includes a frame rod, and one side of the output end of the torsion motor and one end of the electric slide are respectively fixedly connected to the frame rod, and the inner wall of the round rod is threadedly connected with a connecting rod, and the top of the connecting rod is fixedly connected with a groove block, and one end of the connecting rod is fixedly connected with a push rod, and an oil groove is opened inside the round rod. The present invention sets a clamping device, and controls two moving parts by operating a servo motor to clamp the upper and lower ends of the shaft rod respectively to fix the position of the shaft rod, and further restricts the position of the shaft rod between the pressure blocks by the outward expansion of the inner wall of the expansion groove to cause deformation, so as to avoid as much as possible the angle deviation of the two ends of the shaft rod when the torsion motor rotates, thereby affecting the test results.

Description

Technical Field

[0001] The present invention relates to the technical field of static torsion testing, and in particular to a static torsion testing tooling system for a turboshaft engine starting and accessory transmission system. Background Art

[0002] A turboshaft engine is a type of aircraft engine primarily used in helicopters. Its key feature is that the power generated by the gas generator is output through a drive shaft to drive the helicopter's rotor and tail rotor, rather than directly generating thrust like a turbofan or turbojet engine. Turboshaft engines contain numerous shafts, which require static torsion testing before leaving the factory to evaluate their performance and reliability under torque.

[0003] When conducting a static torsion test on the shaft of a turboshaft engine, it is necessary to connect the two ends of the shaft to the clamping ends of the static torsion test fixture. After the connection is completed, one end is controlled to rotate and the parameters are detected by the sensor. After the two ends of the shaft are connected to the clamping ends of the fixture, when one end rotates, there may be a certain amount of offset and sliding between the clamping end and the shaft surface, resulting in deviation in the data results during the test. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that after the two ends of the shaft body are connected to the clamping end of the tooling, a certain amount of offset and sliding may occur between the clamping end and the shaft body surface when one end rotates, resulting in deviation in the data results during detection. The static torsion test tooling system of the turboshaft engine starting and accessory transmission system is proposed.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a static torsion test fixture system for a turboshaft engine starting and accessory transmission system, comprising a base, a torsion motor is provided on one side of the top of the base, a slide rail is provided on the top of the base, an electric slide is slidably connected to the inner wall of the slide rail, and the output ends of the electric slide and the torsion motor are respectively provided with a clamping device, the clamping device comprises a frame rod, one side of the output end of the torsion motor and one end of the electric slide are respectively fixedly connected to the frame rod, a servo motor is provided on one side of the frame rod, the output end of the servo motor is fixedly connected to a first gear, the outer surface of the frame rod is rotatably connected to a threaded barrel near the servo motor, the outer surface of the threaded barrel is fixedly connected to a second gear, the outer surface of the first gear is meshed with the outer surface of the second gear, the inner wall of the threaded barrel is threadedly connected to two first screws, and the two first screws are The cam is fixedly provided with a first end in a forward direction and a second end in a reverse direction, and the cam is fixedly provided with a first end in a forward direction and a reverse direction, and the cam is fixedly provided with a first end in a reverse direction, and the reverse direction of the cam is rotated.

[0006] The effect achieved by the above components is: by setting a pressure block, when the shaft of the turboshaft engine is subjected to a static torsion test, one end of the shaft is fitted to one side of the output end of the torsion motor and kept level, and then the servo motor on the outer surface of the frame rod on the output end of the torsion motor is operated to drive the first gear to rotate, and the second gear and the threaded barrel are driven to rotate through the first gear, and the two first screws are driven to move toward the threaded barrel on the inner wall of the threaded barrel through the threaded barrel, and the round rod is driven to slide on the inner wall of the frame rod through the rectangular rod to press the sides of the two pressure blocks close to each other on the upper and lower sides of the shaft respectively, and at the same time, the rotation of the threaded barrel will pull the two steel ropes at the upper and lower ends so that the two steel ropes are released from the outer surfaces of the two slot blocks respectively and cause the coil spring to deform, pulling the slot block and the connecting rod to rotate. , so that the connecting rod moves inside the round rod toward the pressure block, pushing the push rod to slide inside the oil tank and squeezing the hydraulic oil inside the oil tank to generate pressure to push the two sides of the bottom end of the inner wall of the expansion tank to expand outward and get stuck in two places on the outer surface of the shaft rod, and then operate the electric slide to move inside the slide rail to adjust the position of the electric slide, and press one end of the electric slide against the other end of the shaft rod so that the clamping device on the outer surface of the electric slide fixes the other end of the shaft rod, and then operate the torsion motor to make the shaft rod generate a certain torque, and perform the test through the sensor at one end of the electric slide. After the test is completed, operate the servo motor to control the threaded barrel to rotate so that the two pressure blocks move away from each other. At the same time, the coil spring inside the slot block returns to its original state, which will pull the slot block to rotate and rewrap the wire rope around its own surface.

[0007] Preferably, the bottom end of the pressing block is fixedly connected to two reinforcing edges, and the two reinforcing edges are respectively located outside the two ends of the inner wall of the expansion groove.

[0008] The effect achieved by the above components is: by setting the reinforcement edge, the outer edge of the expansion groove can be reinforced, so as to avoid as much as possible the edge fracture when the inner wall of the expansion groove expands toward the outer shape, causing the problem of hydraulic oil leakage.

[0009] Preferably, an annular groove is provided at the bottom end of the slot block, and two positioning rods are fixedly connected to the top end of the rectangular rod. The top end of the positioning rod slides on the inner wall of the annular groove, and the height of the positioning rod is less than the total length of the connecting rod and the annular groove located outside the round rod.

[0010] The effect achieved by the above components is: when the slot block and the connecting rod are rotated by pulling the steel wire rope, the top ends of the two positioning rods will slide on the inner wall of the annular groove, further limiting the angle between the slot block and the connecting rod and the round rod and the rectangular rod, thereby avoiding shaking when the slot block rotates as much as possible.

[0011] Preferably, one side of the pressing block is fixedly connected to a positioning plate, and one side of the positioning plate slides on one side of the rack rod.

[0012] The effect achieved by the above components is that when the round rod and the pressure block are moved by the screw, one side of the positioning plate will slide on one side of the rack rod, further limiting the angle between the pressure block and the rack rod, and avoiding the angle of the pressure block from deflecting as much as possible.

[0013] Preferably, two positioning blocks are fixedly connected to the inner wall of the rectangular rod, and part of the outer surface of the steel wire rope is located between the two positioning blocks.

[0014] The effect achieved by the above components is: by setting the positioning block, the position of the wire rope on the outer surface of the rectangular rod can be restricted, thereby preventing the wire rope from accidentally winding around the outside of the rectangular rod and affecting normal use.

[0015] Preferably, a supporting device is provided on the outer surface of the base, and the supporting device includes a sliding plate, the bottom end of the sliding plate slides on the inner wall of the slide rail, the top end of the sliding plate is fixedly connected to a slot rod, the inner wall of the slot rod is slidably connected to the sliding rod, the top end of the sliding rod is fixedly connected to a support block, a rectangular slot is opened on one side of the slot rod, and a second screw is fixedly connected to one side of the slot rod, the outer surface of the second screw slides on the inner wall of the rectangular slot, and the outer surface of the second screw is threadedly connected to a threaded ring, and two springs are provided at the bottom end of the sliding rod, and the upper and lower ends of the two springs are fixedly connected to the bottom end of the sliding rod and the bottom end of the inner wall of the slot rod respectively.

[0016] The effect achieved by the above components is: by setting the support block and connecting the shaft rod with the clamping device on the outer surface of the torsion motor, the sliding plate can be pushed to slide on the inner wall of the slide rail so that the support block is located below the middle end of the shaft rod. The contact between the support block and the outer surface of the shaft rod will push the sliding rod to slide downward on the inner wall of the slot rod and compress the two springs. At the same time, the second screw will slide on the inner wall of the rectangular groove. The threaded ring is rotated to move the threaded ring toward the slot rod on the outer surface of the second screw rod and press one side against the outer surface of the slot rod. The position of the sliding rod inside the slot rod can be fixed. The bottom of the shaft rod is supported by the support block to avoid as much as possible the deviation of the angles of the two ends of the shaft rod when the other end of the shaft rod is not connected to the clamping device on the outer surface of the electric slide seat.

[0017] Preferably, a plurality of protrusions are fixedly connected to the outer surface of the threaded ring, and the protrusions are distributed in a circular pattern on the outer surface of the threaded ring.

[0018] The effect achieved by the above components is that gripping the protrusions on the outer surface of the threaded ring can more conveniently push the threaded ring to rotate without slipping.

[0019] Preferably, one end of the second screw rod away from the sliding rod is fixedly connected to a stopper, and the length of the stopper is greater than the diameter of the second screw rod.

[0020] The effect achieved by the above components is: by setting the stopper, the movement range of the threaded ring on the outer surface of the second screw can be limited, thereby preventing the threaded ring from falling off the second screw and being lost when the outer surface of the second screw moves outward.

[0021] Compared with the prior art, the advantages and positive effects of the present invention are:

[0022] In the present invention, a clamping device is provided, and the servo motor is operated to control the two moving parts to clamp the upper and lower ends of the shaft to fix the position of the shaft, and the inner wall of the expansion groove is expanded outward to cause deformation to further limit the position of the shaft between the pressure blocks, thereby avoiding as much as possible the angle deviation of the two ends of the shaft when the twisting motor is rotated, which affects the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the base of the present invention;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the pole of the present invention;

[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of the briquetting part of the present invention;

[0027] Figure 5 It is a schematic diagram of the partial cross-section of the three-dimensional structure of the round rod of the present invention;

[0028] Figure 6 It is a schematic diagram of the partial cross-section of the three-dimensional structure of the slot rod of the present invention.

[0029] Legend: 1. Base; 2. Clamping device; 3. Support device; 4. Twisting motor; 5. Slide rail; 6. Electric slide; 21. Frame rod; 22. Servo motor; 23. First gear; 24. Second gear; 25. Threaded barrel; 26. First screw; 27. Rectangular rod; 28. Round rod; 29. ​​Pressure block; 210. Wire rope; 211. Slot block; 212. Connecting rod; 213. Oil tank; 214. Expansion tank; 215. Push rod; 216. Reinforced edge; 217. Annular groove; 218. Positioning rod; 219. Positioning plate; 220. Positioning block; 31. Sliding plate; 32. Slot rod; 33. Sliding rod; 34. Support block; 35. Spring; 36. Rectangular groove; 37. Second screw; 38. Threaded ring; 39. Bump; 310. Stopper. DETAILED DESCRIPTION

[0030] like Figure 1-5As shown, the present invention provides a static torsion test fixture system for a turboshaft engine starting and accessory transmission system, comprising a base 1, a torsion motor 4 is provided on one side of the top of the base 1, a slide rail 5 is provided on the top of the base 1, an electric slide 6 is slidably connected to the inner wall of the slide rail 5, and the output ends of the electric slide 6 and the torsion motor 4 are respectively provided with a clamping device 2, the clamping device 2 comprises a frame rod 21, one side of the output end of the torsion motor 4 and one end of the electric slide 6 are respectively fixedly connected to the frame rod 21, a servo motor 22 is provided on one side of the frame rod 21, the output end of the servo motor 22 is fixedly connected to a first gear 23, the outer surface of the frame rod 21 is rotatably connected to a side close to the servo motor 22, and the outer surface of the threaded cylinder 25 is fixed A second gear 24 is connected, the outer surface of the first gear 23 is meshed with the outer surface of the second gear 24, the inner wall of the threaded cylinder 25 is threadedly connected to two first screws 26, the thread directions of the outer surfaces of the two first screws 26 are opposite, the end of the first screw 26 away from the threaded cylinder 25 is fixedly connected to a rectangular rod 27, the end of the rectangular rod 27 away from the first screw 26 is fixedly connected to a round rod 28, the outer surface of the round rod 28 slides on one side of the inner wall of the frame rod 21, one end of the round rod 28 is fixedly connected to a pressure block 29, the inner wall of the round rod 28 is threadedly connected to a connecting rod 212, the top of the connecting rod 212 is fixedly connected to a slot block 211, and a coil spring is provided inside the slot block 211, and the two ends of the coil spring are respectively engaged with one side of the inner wall of the slot block 211 and One side of the top of the rectangular rod 27 is fixedly connected, and a steel wire rope 210 is provided on the outer surface of the slot block 211. The steel wire rope 210 is partially wound around the outer surface of the slot block 211. The end of the steel wire rope 210 away from the slot block 211 is fixedly connected to one end of the threaded cylinder 25. One end of the connecting rod 212 is fixedly connected to a push rod 215. An oil groove 213 is provided inside the round rod 28. Hydraulic oil is provided inside the oil groove 213. The outer surface of the push rod 215 slides on the inner wall of the oil groove 213. An expansion groove 214 is provided inside the pressure block 29. By setting the pressure block 29, when the shaft of the turboshaft engine is subjected to a static torsion test, one end of the shaft is fitted to one side of the output end of the torsion motor 4 and kept level, and then the output end of the torsion motor 4 is operated. The servo motor 22 on the outer surface of the rod 21 drives the first gear 23 to rotate, and the second gear 24 and the threaded barrel 25 are driven to rotate through the first gear 23, and the two first screws 26 are driven to move toward the threaded barrel 25 on the inner wall of the threaded barrel 25 through the threaded barrel 25. The round rod 28 is driven to slide on the inner wall of the frame rod 21 through the rectangular rod 27, and the two pressure blocks 29 are pressed against the upper and lower sides of the shaft respectively on the side close to each other. At the same time, the rotation of the threaded barrel 25 will pull the two steel wire ropes 210 at the upper and lower ends, so that the two steel wire ropes 210 are respectively released from the outer surfaces of the two slot blocks 211 and the coil spring is deformed, pulling the slot block 211 and the connecting rod 212 to rotate, so that the connecting rod 212 moves inside the round rod 28 toward the pressure block 29.The push rod 215 is pushed to slide inside the oil groove 213 and squeeze the hydraulic oil inside the oil groove 213 to generate pressure to push the two sides of the bottom end of the inner wall of the expansion groove 214 to expand outward and get stuck on the two outer surfaces of the shaft. Then, the electric slide 6 is operated to move inside the slide rail 5 to adjust the position of the electric slide 6, and one end of the electric slide 6 is pressed against the other end of the shaft, so that the clamping device 2 on the outer surface of the electric slide 6 fixes the other end of the shaft. Then, the torsion motor 4 is operated to make the shaft generate a certain torque, and the test is carried out through the sensor at one end of the electric slide 6. After the test is completed, the servo motor is operated. The motor 22 controls the rotation of the threaded barrel 25, causing the two pressure blocks 29 to move away from each other. Simultaneously, the coil spring inside the slot block 211 returns to its original shape, pulling the slot block 211 to rotate and rewinding the wire rope 210 around its surface. By setting up the clamping device 2, the servo motor 22 controls the two moving parts to clamp the upper and lower ends of the shaft, respectively, fixing the position of the shaft. The inner wall of the expansion slot 214 expands outward, causing deformation, further restricting the position of the shaft between the pressure blocks 29. This minimizes the angle deviation of the two ends of the shaft when the torsion motor 4 rotates, which could affect the test results.

[0031] Reference Figure 2-5 As shown, in this embodiment: two reinforcing edges 216 are respectively located on the outside of the two ends of the inner wall of the expansion groove 214. By setting the reinforcing edges 216, the outer edge of the expansion groove 214 can be reinforced to avoid as much as possible the problem of hydraulic oil leakage caused by the edge of the inner wall of the expansion groove 214 expanding toward the outer shape. An annular groove 217 is provided at the bottom end of the groove block 211, and two positioning rods 218 are fixedly connected to the top end of the rectangular rod 27. The top end of the positioning rod 218 slides on the inner wall of the annular groove 217. The height of the positioning rod 218 is less than the total length of the connecting rod 212 located outside the round rod 28 and the annular groove 217. When the groove block 211 and the connecting rod 212 are rotated by the wire rope 210, the top ends of the two positioning rods 218 will slide on the inner wall of the annular groove 217, further limiting the angle between the groove block 211 and the connecting rod 212 and the round rod 28 and the rectangular rod 27, and avoiding shaking when the groove block 211 rotates as much as possible.

[0032] Reference Figure 2-5As shown, in this embodiment: one side of the pressure block 29 is fixedly connected to a positioning plate 219, and one side of the positioning plate 219 slides on one side of the frame rod 21. When the round rod 28 and the pressure block 29 are moved by the screw, one side of the positioning plate 219 will slide on one side of the frame rod 21, further limiting the angle between the pressure block 29 and the frame rod 21, and avoiding the angle of the pressure block 29 from being deflected as much as possible. Two positioning blocks 220 are fixedly connected to the inner wall of the rectangular rod 27, and part of the outer surface of the wire rope 210 is located between the two positioning blocks 220. By setting the positioning blocks 220, the position of the wire rope 210 on the outer surface of the rectangular rod 27 can be restricted, and the wire rope 210 can be avoided as much as possible from being accidentally entangled on the outside of the rectangular rod 27 to affect normal use.

[0033] Reference Figure 1 、 Figure 2 and Figure 6 As shown, in this embodiment: the outer surface of the base 1 is provided with a supporting device 3, the supporting device 3 includes a sliding plate 31, the bottom end of the sliding plate 31 slides on the inner wall of the slide rail 5, the top of the sliding plate 31 is fixedly connected to a slot rod 32, the inner wall of the slot rod 32 is slidably connected to a sliding rod 33, the top of the sliding rod 33 is fixedly connected to a supporting block 34, a rectangular slot 36 is opened on one side of the slot rod 32, a second screw rod 37 is fixedly connected to one side of the slot rod 32, the outer surface of the second screw rod 37 slides on the inner wall of the rectangular slot 36, the outer surface of the second screw rod 37 is threadedly connected to a threaded ring 38, and two springs 35 are provided at the bottom end of the sliding rod 33, the upper and lower ends of the two springs 35 are fixedly connected to the bottom end of the sliding rod 33 and the bottom end of the inner wall of the slot rod 32, respectively. By setting the supporting block 34, After the shaft is connected to the clamping device 2 on the outer surface of the torsion motor 4, the sliding plate 31 can be pushed to slide on the inner wall of the slide rail 5 so that the support block 34 is located below the middle end of the shaft. The contact between the support block 34 and the outer surface of the shaft will push the sliding rod 33 to slide downward on the inner wall of the slot rod 32 and compress the two springs 35. At the same time, the second screw 37 will slide on the inner wall of the rectangular groove 36. The threaded ring 38 is rotated to move the threaded ring 38 toward the outer surface of the second screw 37 in the direction of the slot rod 32, pressing one side against the outer surface of the slot rod 32, which can fix the position of the sliding rod 33 inside the slot rod 32. The support block 34 supports the bottom of the shaft to avoid as much as possible the deviation of the angles of the two ends of the shaft when the other end of the shaft is not connected to the clamping device 2 on the outer surface of the electric slide 6.

[0034] Reference Figure 2 and Figure 6As shown, in this embodiment: a plurality of protrusions 39 are fixedly connected to the outer surface of the threaded ring 38, and the protrusions 39 are distributed in a circular shape on the outer surface of the threaded ring 38. Holding the protrusions 39 on the outer surface of the threaded ring 38 can more conveniently push the threaded ring 38 to rotate without slipping. The end of the second screw 37 away from the sliding rod 33 is fixedly connected to a stopper 310, and the length of the stopper 310 is greater than the diameter of the second screw 37. By setting the stopper 310, the movement range of the threaded ring 38 on the outer surface of the second screw 37 can be limited, and the threaded ring 38 can be prevented from detaching from the second screw 37 and falling and being lost when the outer surface of the second screw 37 moves outward.

[0035] Working principle: When the shaft of the turboshaft engine is subjected to a static torsion test, one end of the shaft is fitted to one side of the output end of the torsion motor 4 and kept level. Then, the servo motor 22 on the outer surface of the frame rod 21 on the output end of the torsion motor 4 is operated to drive the first gear 23 to rotate, and the second gear 24 and the threaded barrel 25 are driven to rotate by the first gear 23. The threaded barrel 25 drives the two first screws 26 to move toward the direction of the threaded barrel 25 on the inner wall of the threaded barrel 25, and the rectangular rod 27 drives the round rod 28 to slide on the inner wall of the frame rod 21 to separate the two pressure blocks 29 from each other on one side. Don't press tightly on the upper and lower sides of the shaft, and at the same time, the rotation of the threaded cylinder 25 will pull the two steel wire ropes 210 at the upper and lower ends, so that the two steel wire ropes 210 are released from the outer surfaces of the two groove blocks 211 respectively, and the coil spring is deformed, pulling the groove block 211 and the connecting rod 212 to rotate, so that the connecting rod 212 moves inside the round rod 28 toward the direction of the pressure block 29, pushing the push rod 215 to slide inside the oil groove 213 and squeeze the hydraulic oil inside the oil groove 213 to generate pressure to push the two sides of the inner wall bottom end of the expansion groove 214 to expand outward and get stuck on the outer surface of one end of the shaft, and then push the sliding The plate 31 slides on the inner wall of the slide rail 5 so that the support block 34 is located below the middle end of the shaft rod. The contact between the support block 34 and the outer surface of the shaft rod will push the sliding rod 33 to slide downward on the inner wall of the groove rod 32 and compress the two springs 35. At the same time, the second screw rod 37 will slide on the inner wall of the rectangular groove 36. The threaded ring 38 is rotated to move the threaded ring 38 toward the outer surface of the second screw rod 37 in the direction of the groove rod 32, pressing one side against the outer surface of the groove rod 32, which can fix the position of the sliding rod 33 inside the groove rod 32. The support block 34 supports the lower part of the shaft rod. Then, the electric slide 6 is operated to move inside the slide rail 5 to adjust the position of the electric slide 6, and one end of the electric slide 6 is pressed against the other end of the shaft, so that the clamping device 2 on the outer surface of the electric slide 6 fixes the other end of the shaft, and then the torsion motor 4 is operated to make the shaft generate a certain torque, and the test is carried out through the sensor at one end of the electric slide 6. After the test is completed, the servo motor 22 is operated to control the threaded barrel 25 to rotate so that the two pressure blocks 29 move away from each other. At the same time, the coil spring inside the slot block 211 returns to its original state, which will pull the slot block 211 to rotate and rewind the wire rope 210 around its own surface.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification of the above embodiment based on the technical essence of the present invention that does not deviate from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A static torque test fixture system for a turboshaft engine starting and accessory transmission system, comprising a base (1), characterized in that: A torsion motor (4) is provided on one side of the top of the base (1), a slide rail (5) is provided on the top of the base (1), an electric slide (6) is slidably connected to the inner wall of the slide rail (5), and the output ends of the electric slide (6) and the torsion motor (4) are respectively provided with a clamping device (2), and the clamping device (2) includes a frame rod (21), and one side of the output end of the torsion motor (4) and one end of the electric slide (6) are respectively fixedly connected to the frame rod (21), and a servo motor (22) is provided on one side of the frame rod (21), and the output end of the servo motor (22) is fixed. A first gear (23) is connected, and a threaded barrel (25) is rotatably connected to the side of the outer surface of the frame rod (21) close to the servo motor (22), and the outer surface of the threaded barrel (25) is fixedly connected to the second gear (24), and the outer surface of the first gear (23) is meshed with the outer surface of the second gear (24), and the inner wall of the threaded barrel (25) is threadedly connected to two first screw rods (26), and the thread directions of the outer surfaces of the two first screw rods (26) are opposite, and the end of the first screw rod (26) away from the threaded barrel (25) is fixedly connected to a rectangular rod (27), and the rectangular rod (27) is fixedly connected to the outer surface of the second gear (24). One end of the rectangular rod (27) away from the first screw rod (26) is fixedly connected to a round rod (28), the outer surface of the round rod (28) slides on the inner wall of the frame rod (21), one end of the round rod (28) is fixedly connected to a pressure block (29), the inner wall of the round rod (28) is threadedly connected to a connecting rod (212), the top end of the connecting rod (212) is fixedly connected to a slot block (211), a coil spring is provided inside the slot block (211), the two ends of the coil spring are respectively fixedly connected to the inner wall of the slot block (211) and the top end of the rectangular rod (27), the slot block (211) A steel wire rope (210) is provided on the outer surface of the groove block (211), and the steel wire rope (210) is partially wound around the outer surface of the groove block (211). One end of the steel wire rope (210) away from the groove block (211) is fixedly connected to one end of the threaded cylinder (25). One end of the connecting rod (212) is fixedly connected to a push rod (215). An oil groove (213) is provided inside the round rod (28), and hydraulic oil is provided inside the oil groove (213). The outer surface of the push rod (215) slides on the inner wall of the oil groove (213). An expansion groove (214) is provided inside the pressure block (29).

2. The static torque test fixture system for a turboshaft engine starting and accessory transmission system according to claim 1, characterized in that: The bottom end of the pressing block (29) is fixedly connected to two reinforcing edges (216), and the two reinforcing edges (216) are respectively located outside the two ends of the inner wall of the expansion groove (214).

3. The static torque test fixture system for a turboshaft engine starting and accessory transmission system according to claim 2, characterized in that: An annular groove (217) is formed at the bottom end of the groove block (211), and two positioning rods (218) are fixedly connected to the top end of the rectangular rod (27). The top ends of the positioning rods (218) slide on the inner wall of the annular groove (217), and the height of the positioning rods (218) is less than the total length of the connecting rod (212) located outside the round rod (28) and the annular groove (217).

4. The static torque test fixture system for a turboshaft engine starting and accessory transmission system according to claim 3, characterized in that: One side of the pressing block (29) is fixedly connected to a positioning plate (219), and one side of the positioning plate (219) slides on one side of the rack rod (21).

5. The static torque test fixture system for a turboshaft engine starting and accessory transmission system according to claim 4, characterized in that: Two positioning blocks (220) are fixedly connected to the inner wall of the rectangular rod (27), and part of the outer surface of the steel wire rope (210) is located between the two positioning blocks (220).

6. The static torque test fixture system for a turboshaft engine starting and accessory transmission system according to claim 5, characterized in that: The outer surface of the base (1) is provided with a supporting device (3), and the supporting device (3) includes a sliding plate (31), the bottom end of the sliding plate (31) slides on the inner wall of the slide rail (5), the top end of the sliding plate (31) is fixedly connected to a groove rod (32), the inner wall of the groove rod (32) is slidably connected to a sliding rod (33), the top end of the sliding rod (33) is fixedly connected to a supporting block (34), a rectangular groove (36) is opened on one side of the groove rod (32), a second screw rod (37) is fixedly connected to one side of the groove rod (32), the outer surface of the second screw rod (37) slides on the inner wall of the rectangular groove (36), and the outer surface of the second screw rod (37) is threadedly connected to a threaded ring (38).

7. The static torque test fixture system for a turboshaft engine starting and accessory transmission system according to claim 6, characterized in that: Two springs (35) are provided at the bottom end of the sliding rod (33), and the upper and lower ends of the two springs (35) are fixedly connected to the bottom end of the sliding rod (33) and the bottom end of the inner wall of the slot rod (32), respectively.

8. The static torque test fixture system for a turboshaft engine starting and accessory transmission system according to claim 7, characterized in that: A plurality of protrusions (39) are fixedly connected to the outer surface of the threaded ring (38), and the protrusions (39) are distributed in a circular pattern on the outer surface of the threaded ring (38).

9. The static torque test fixture system for a turboshaft engine starting and accessory transmission system according to claim 8, characterized in that: One end of the second screw rod (37) away from the sliding rod (33) is fixedly connected to a stopper (310), and the length of the stopper (310) is greater than the diameter of the second screw rod (37).

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