Miniature turbojet engine test bed clamping mechanism

Abstract

The invention provides a miniature turbojet engine test bed clamping mechanism, and relates to the technical field of engine bed clamping, a base, a fixing structure and a connecting structure, the upper surface of the base is fixedly connected with a table top, the lower surface of the base is fixedly connected with a supporting seat, the upper surface of the table top is provided with the fixing structure, and the fixing structure is fixedly connected with the supporting seat. A plurality of connecting blocks are installed on the upper surface of the fixing structure and fixedly connected with the table top, every two connecting blocks are divided into one group, sliding rails are fixedly connected to the upper ends of the connecting blocks, sliding blocks are slidably connected to the inner walls of the sliding rails, and fixing rods are fixedly connected to the upper ends of the sliding blocks. A plurality of telescopic rods are fixedly connected to the sides, close to the table top, of the fixing rods. The engine fixing device has the advantages that different types of engines can be conveniently fixed, and the situation that errors occur when the different types of engines with different sizes are fixed, and consequently accidents occur when fixing testing is conducted on the engines is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of engine platform clamping, and in particular to a clamping mechanism for a micro-turbojet engine test platform. Background Art

[0002] The platform fixing device is composed of a base, a table top, a support seat and connecting parts. It is a device used to clamp and fix the engine and is more common in daily life.

[0003] Existing technologies such as the invention with publication number CN106670995B disclose a high-speed rotating shaft system clamp for a turbojet engine. The patent adopts an accelerometer record holder, a hexagon socket screw, a first end cover, an intermediate body, and a second end cover; the first end cover and the second end cover are fixed at both ends of the intermediate body, and the other end of the first end cover is fixedly connected with an accelerometer record holder, and the accelerometer record holder is provided with a through slot for installing an acceleration sensor; the accelerometer record holder is connected to the first end cover by a hexagon socket screw; the first end cover and the second end cover are both provided with a mounting slot in the middle of the inner side for fixing the high-rotation shaft system, which solves the problem that there are very few related studies and experiments at home and abroad, and even fewer studies for measuring the overload of high-speed rotating shaft systems. In the air cannon test, compressed gas is used as the power source of the test piece, and the test piece to be tested is launched out by gas pressure. In Li Hualun. Research on the Performance of Launch and Recovery Integrated Air Cannon, Nanjing University of Science and Technology, 2013., a low-overload air cannon is disclosed. The low-overload test of the test piece is carried out by compressed air to provide data support for the strength analysis of the test piece. Under such experimental conditions, the high-speed rotating shaft system is required to have the ability to directly withstand the gas impact. However, for some high-speed rotating shaft systems that cannot directly withstand the gas impact, this low-overload air cannon will not be able to meet the application problem.

[0004] The inventor discovered in his daily work that in the process of fixing the engine, there is a problem in the prior art of fixing different types of engines to avoid deviations when fixing engines of different types and sizes, which in turn leads to unexpected problems when fixing the engine for testing. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a clamping mechanism for a micro-turbojet engine test bench.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a micro-turbojet engine test bench clamping mechanism, which achieves that when the engine needs to be fixed, the engine is placed on the extension plate and the sleeve rod, and then the weight of the engine drives the extension plate and the sleeve rod to move downward, the sleeve rod drives the extension rod to move, the extension rod slides on the inner wall of the sleeve rod, the extension rod drives the moving block to move, the moving block slides on the inner wall of the connecting block, the moving block drives the spring to contract, the moving block drives the connecting block to move, the connecting block drives the connecting rod to move, the connecting rod drives the slider to move, the slider slides inside the slide rail, the slider drives the fixed rod to move, the fixed rod drives the telescopic rod to move, the telescopic rod drives the top spring and the connecting rod to move, the connecting rod drives the extrusion block to move, and then the extrusion block abuts against the engine, the connecting rod slides on the inner wall of the telescopic rod, the connecting rod drives the top spring to contract, and when the engine is moved away, the top spring and the spring are stretched to drive the sleeve rod and the connecting rod to reset.

[0008] Preferably, a plurality of anti-skid grooves are provided on a side of the extrusion block away from the connecting rod, and the plurality of anti-skid grooves are evenly distributed on the extrusion block.

[0009] By adopting this preferred solution, the anti-skid groove can increase the friction between the extrusion block and the engine, thereby avoiding sliding when the engine is extruded and fixed.

[0010] Preferably, a limit rod is fixedly connected inside the slide rail, and the limit rod is slidably connected to the slider.

[0011] By adopting this preferred solution, the limiting rod can limit the slider, thereby preventing the slider from deviating when sliding on the inner wall of the slide rail, thereby improving the sliding stability of the slider.

[0012] Preferably, an auxiliary rod is fixedly connected inside the connecting block, the auxiliary rod is slidably connected to the moving block, and the spring is sleeved on the arc surface of the auxiliary rod.

[0013] By adopting this preferred solution, the auxiliary rod can limit the spring, thereby preventing the spring from deforming during use and increasing the service life of the spring.

[0014] Preferably, the upper surface of the table top is provided with a hanging structure, and the hanging structure includes a plurality of brackets, and the plurality of brackets are fixedly connected to the table top, and the plurality of brackets are divided into two groups, and the upper end of one group of brackets is fixedly connected to a connecting rail, and the inner wall of the connecting rail is slidably connected to an auxiliary block, and the inner rotation of the guide rail is connected to a screw rod, and one side of the bracket is fixedly connected to a mounting rod, and the end of the mounting rod away from the bracket is fixedly connected to a servo motor, and the output end of the servo motor is fixedly connected to the screw rod, and the output end of one of the servo motors is fixedly connected to a transmission shaft, and the sides of the two auxiliary blocks close to each other are fixedly connected to the screw rod. They are all fixedly connected with connecting strips, and a plurality of square rods are fixedly connected with the side where the two connecting strips are close to each other, and a circular ring is fixedly connected to the upper surface of the square rod, and the inner wall of the circular ring is rotatably connected with a rotating rod, and the inner wall of the rotating rod is slidably connected with a round rod, and the end of the round rod close to the transmission shaft is fixedly connected with a rotating shaft, and the circular arc surface of the rotating shaft is transmission-connected with a transmission belt, and the transmission belt is transmission-connected with the transmission shaft, and a plurality of rollers are fixedly connected with the circular arc surface of the rotating rod, and a traction rope is fixedly connected with the circular arc surface of the roller, and a connecting piece is provided at the lower end of the traction rope, and the connecting piece is connected to the traction rope through a connecting structure.

[0015] By adopting this preferred solution, when the engine needs to be hoisted, the servo motor is started to operate, the servo motor drives the screw rod to rotate, the screw rod rotates on the inner wall of the connecting rail, the screw rod drives the auxiliary block to move, the auxiliary block slides on the inner wall of the connecting rail, the auxiliary block drives the connecting bar to move, the connecting bar drives the square rod to move, the square rod drives the ring to move, the ring drives the rotating rod to move, the rotating rod drives the roller to move, and after moving to the appropriate position, the traction rope is connected to the connecting piece connected to the engine through the connecting structure. When the connecting bar moves, the servo motor drives the transmission shaft to rotate, the transmission shaft drives the transmission belt to operate, the transmission belt drives the rotating shaft to rotate, the rotating shaft drives the round rod to rotate, the round rod drives the rotating rod to rotate, the rotating rod rotates on the inner wall of the ring, the rotating rod drives the roller to rotate, the roller drives the traction rope to be retracted and released, and then the servo motor is reversed, the servo motor drives the rotating rod to rotate, the rotating rod drives the roller to reel in the traction rope, and then the traction rope lifts the engine and the engine can be placed above the platform.

[0016] Preferably, the mounting rod is a stainless steel rod, and the cross section of the mounting rod is circular.

[0017] By adopting this preferred solution, the stainless steel material can increase the service life of the installation rod and prevent the installation rod from rusting when used in a short period of time.

[0018] Preferably, the rotating rod is rotatably connected to the circular ring, and the rotating rod is slidably connected to the round rod, and the circular ring can move the rotating rod and the round rod can rotate with the rotating rod.

[0019] Preferably, a connecting structure is provided at the lower end of the traction rope, and the connecting structure includes a sliding rod, the sliding rod is fixedly connected to the traction rope, the arc surface of the sliding rod is slidably connected with a slip ring, the lower surface of the slip ring is fixedly connected with three limit blocks, the arc surface of the sliding rod is fixedly connected with six fixed blocks, the six fixed blocks are divided into two groups, the limit blocks and the inner walls of the fixed blocks are rotatably connected with a long rod, the end of the long rod away from the limit block is fixedly connected with a mounting block, the end of the mounting block away from the long rod is fixedly connected with a fitting block, and the fitting block is fitted with the connecting piece.

[0020] By adopting this preferred solution, when it is necessary to connect the traction rope with the connecting piece, the slip ring is pulled upward to move, the slip ring drives the limit block to move, the limit block drives all the long rods to move, and then the long rods drive the installation block to move, the installation block drives the fitting block to retract inward, and then the connecting structure is placed in the connecting piece, and then the slip ring is pressed downward, and then the long rods drive the fitting block to open the connecting piece and connect the traction rope.

[0021] Preferably, a side of the fitting block away from the mounting block is fixedly connected with an anti-skid pad, and the anti-skid pad is a rubber pad.

[0022] By adopting this preferred solution, the anti-slip pad can increase the friction between the bonding block and the connecting piece, thereby preventing the bonding block and the connecting piece from loosening when they are connected.

[0023] Preferably, two handles are fixedly connected to the upper surface of the slip ring, and the cross-section of the handles is circular.

[0024] By adopting this preferred solution, when the slip ring needs to be pulled, the handle can be directly pulled, and the handle drives the slip ring to move, and the handle makes it more convenient to move the slip ring.

[0025] Compared with the prior art, the advantages and positive effects of the present invention are:

[0026] 1. In the present invention, by providing a fixing structure, it is possible to conveniently fix engines of different types, thereby avoiding deviations when fixing engines of different types and sizes, thereby avoiding unexpected effects when fixing the engines for testing.

[0027] 2. In the present invention, by providing a hoisting structure, the engine can be conveniently hoisted directly onto the tabletop, thereby preventing the engine from accidentally falling during manual transportation, which not only causes damage to the engine but also causes personal injury.

[0028] 3. In the present invention, by setting a connecting structure, it is achieved that the traction rope and the connecting piece can be easily connected, and various types of engines can be easily connected for hoisting, avoiding the need to replace different connecting pieces when hoisting engines of different models. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A three-dimensional structural schematic diagram of a clamping mechanism of a micro-turbojet engine test bench is proposed for the present invention;

[0030] Figure 2 A schematic diagram of the fixing structure of a clamping mechanism of a micro-turbojet engine test bench is provided for the present invention;

[0031] Figure 3 The present invention proposes a micro-turbojet engine test bench clamping mechanism Figure 2 Schematic diagram of some structures;

[0032] Figure 4 The present invention proposes a micro-turbojet engine test bench clamping mechanism Figure 3 A magnified image of point A;

[0033] Figure 5 The present invention proposes a micro-turbojet engine test bench clamping mechanism Figure 2 Schematic diagram of the internal structure;

[0034] Figure 6 A schematic diagram of a hoisting structure of a clamping mechanism of a micro-turbojet engine test bench is provided for the present invention;

[0035] Figure 7 The present invention proposes a micro-turbojet engine test bench clamping mechanism Figure 6 A schematic diagram of the side structure of

[0036] Figure 8 The present invention provides a schematic diagram of the connection structure of a clamping mechanism of a micro-turbojet engine test bench.

[0037] Legend: 1. Base; 2. Table; 3. Support seat; 4. Fixed structure; 401. Connecting block; 402. Extension plate; 403. Sleeve rod; 404. Slide rail; 405. Fixed rod; 406. Telescopic rod; 407. Connecting rod; 408. Extrusion block; 409. Anti-slip groove; 410. Connecting rod; 411. Sliding block; 412. Spring; 413. Extension rod; 414. Moving block; 415. Auxiliary rod; 416. Connecting block; 417. Limit rod; 418. Top spring; 5. Lifting structure; 501. Connecting rail; 5 02. Servo motor; 503. Rotating rod; 504. Ring; 505. Roller; 506. Rotating shaft; 507. Transmission belt; 508. Mounting rod; 509. Screw rod; 510. Auxiliary block; 511. Transmission shaft; 512. Traction rope; 513. Round rod; 514. Connecting strip; 515. Square rod; 516. Bracket; 6. Connecting structure; 61. Limit block; 62. Sliding rod; 63. Handle bar; 64. Mounting block; 65. Fitting block; 66. Anti-slip pad; 67. Long rod; 68. Fixed block; 69. Slip ring; 7. Connecting parts. DETAILED DESCRIPTION

[0038] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0040] Embodiment 1, as Figure 1-8 As shown, the present invention provides a clamping mechanism for a micro-turbojet engine test bench, comprising a base 1, a fixing structure 4 and a connecting structure 6, wherein a table top 2 is fixedly connected to the upper surface of the base 1, a supporting seat 3 is fixedly connected to the lower surface of the base 1, a fixing structure 4 is provided on the upper surface of the table top 2, a lifting structure 5 is provided on the upper surface of the table top 2, and a connecting structure 6 is provided at the lower end of a traction rope 512.

[0041] The specific settings and functions of the fixed structure 4, the hoisting structure 5, and the connecting structure 6 are described in detail below.

[0042] like Figures 1 to 5As shown, a plurality of connection blocks 401 are installed on the upper surface of the fixed structure 4, and the plurality of connection blocks 401 are fixedly connected to the table top 2. The plurality of connection blocks 401 are grouped in pairs, and a slide rail 404 is fixedly connected to the upper end of the connection block 401, and a slider 411 is slidably connected to the inner wall of the slide rail 404, and a fixed rod 405 is fixedly connected to the upper end of the slider 411, and a plurality of telescopic rods 406 are fixedly connected to the side of the fixed rod 405 close to the table top 2, and a connecting rod 407 is slidably connected to the inner wall of the telescopic rod 406, and a plurality of top springs 418 are arranged inside the telescopic rod 406, and the two ends of the top spring 418 are fixedly connected to the telescopic rod 406 and the connecting rod 407, respectively, and an extrusion block 408 is fixedly connected to the end of the connecting rod 407 away from the telescopic rod 406 The inner wall of the connecting block 401 is slidably connected with a moving block 414, and the sides of the two moving blocks 414 that are close to each other are fixedly connected with an extension rod 413, and the ends of the extension rods 413 that are close to each other are slidably connected with a sleeve rod 403, and both sides of the sleeve rod 403 are fixedly connected with an extension plate 402, and the side of the slider 411 away from the extension rod 413 is fixedly connected with a connecting block 416, and the inner wall of the connecting block 416 is rotatably connected with a connecting rod 410, and the connecting rod 410 is rotatably connected with the slider 411, and a spring 412 is arranged inside the connecting block 401, and the two ends of the spring 412 are fixedly connected with the connecting block 401 and the moving block 414 respectively. When it is necessary to fix the engine, the engine is placed on the extension plate 402 and the sleeve rod 403, and then the engine The weight drives the extension plate 402 and the sleeve rod 403 to move downward, the sleeve rod 403 drives the extension rod 413 to move, the extension rod 413 slides on the inner wall of the sleeve rod 403, the extension rod 413 drives the moving block 414 to move, the moving block 414 slides on the inner wall of the connecting block 401, the moving block 414 drives the spring 412 to contract, the moving block 414 drives the connecting block 416 to move, the connecting block 416 drives the connecting rod 410 to move, the connecting rod 410 drives the slider 411 to move, the slider 411 slides inside the slide rail 404, the slider 411 drives the fixed rod 405 to move, the fixed rod 405 drives the telescopic rod 406 to move, the telescopic rod 406 drives the top spring 418 and The connecting rod 407 moves, and the connecting rod 407 drives the extrusion block 408 to move, and then the extrusion block 408 abuts against the engine, and the connecting rod 407 slides on the inner wall of the telescopic rod 406, and the connecting rod 407 drives the top spring 418 to contract. When the engine is moved away, the top spring 418 and the spring 412 are stretched to drive the sleeve rod 403 and the connecting rod 407 to reset. A plurality of anti-skid grooves 409 are provided on the side of the extrusion block 408 away from the connecting rod 407, and the plurality of anti-skid grooves 409 are evenly distributed on the extrusion block 408. The anti-skid grooves 409 can increase the friction between the extrusion block 408 and the engine to avoid sliding when the engine is squeezed and fixed. The internal fixed connection of the slide rail 404 is the limit rod 417.The limiting rod 417 is slidably connected to the slider 411. The limiting rod 417 can limit the slider 411 to prevent the slider 411 from deflecting when sliding on the inner wall of the slide rail 404, thereby improving the sliding stability of the slider 411. The interior of the connecting block 401 is fixedly connected with an auxiliary rod 415, which is slidably connected to the moving block 414. The spring 412 is sleeved on the arc surface of the auxiliary rod 415. The auxiliary rod 415 can limit the spring 412 to prevent the spring 412 from deforming when in use, thereby improving the service life of the spring 412.

[0043] The effect achieved by the entire fixing structure 4 is that when the engine needs to be fixed, the engine is placed on the extension plate 402 and the sleeve rod 403, and then the weight of the engine drives the extension plate 402 and the sleeve rod 403 to move downward, the sleeve rod 403 drives the extension rod 413 to move, the extension rod 413 slides on the inner wall of the sleeve rod 403, the extension rod 413 drives the moving block 414 to move, the moving block 414 slides on the inner wall of the connecting block 401, the moving block 414 drives the spring 412 to contract, the moving block 414 drives the connecting block 416 to move, the connecting block 416 drives the connecting rod 410 to move, the connecting rod 410 drives the slider 411 to move, the slider 411 slides inside the slide rail 404, the slider 411 drives the fixed rod 405 to move, the fixed rod 405 drives the telescopic rod 406 to move, the telescopic rod 406 The connecting rod 407 drives the top spring 418 and the connecting rod 407 to move, and the connecting rod 407 drives the extrusion block 408 to move, and then the extrusion block 408 contacts the engine, and the connecting rod 407 slides on the inner wall of the telescopic rod 406, and the connecting rod 407 drives the top spring 418 to contract. When the engine is moved away, the top spring 418 and the spring 412 are stretched to drive the sleeve rod 403 and the connecting rod 407 to reset. The anti-slip groove 409 can increase the friction between the extrusion block 408 and the engine to avoid sliding when the engine is squeezed and fixed. The limiting rod 417 can limit the slider 411 to avoid the slider 411 from deviating when sliding on the inner wall of the slide rail 404, thereby improving the sliding stability of the slider 411. The auxiliary rod 415 can limit the spring 412 to avoid the spring 412 from deforming during use, thereby improving the service life of the spring 412.

[0044] like Figure 6 and Figure 7As shown, the hoisting structure 5 includes a plurality of brackets 516, and the plurality of brackets 516 are fixedly connected to the table top 2. The plurality of brackets 516 are divided into two groups. The upper end of one group of brackets 516 is fixedly connected to a connecting rail 501, and the inner wall of the connecting rail 501 is slidably connected to an auxiliary block 510. The inner wall of the guide rail is rotatably connected to a screw rod 509. One side of the bracket 516 is fixedly connected to a mounting rod 508, and the end of the mounting rod 508 away from the bracket 516 is fixedly connected to a servo motor 502. The output end of the servo motor 502 is fixedly connected to the screw rod 509, and the output end of one of the servo motors 502 is fixedly connected to a transmission shaft 511. The two auxiliary blocks 510 are fixedly connected to a connecting bar 514 on one side close to each other. The two connecting bars 514 are fixedly connected to one side close to each other. The side is fixedly connected with a plurality of square rods 515, the upper surface of the square rod 515 is fixedly connected with a circular ring 504, the inner wall of the circular ring 504 is rotatably connected with a rotating rod 503, the inner wall of the rotating rod 503 is slidably connected with a round rod 513, the end of the round rod 513 close to the transmission shaft 511 is fixedly connected with a rotating shaft 506, the circular arc surface of the rotating shaft 506 is transmission-connected with a transmission belt 507, the transmission belt 507 is transmission-connected with the transmission shaft 511, the circular arc surface of the rotating rod 503 is fixedly connected with a plurality of rollers 505, the circular arc surface of the roller 505 is fixedly connected with a traction rope 512, the lower end of the traction rope 512 is provided with a connecting piece 7, the connecting piece 7 is connected to the traction rope 512 through a connecting structure 6, when it is necessary to hoist the engine, the servo motor 502 is started to operate The servo motor 502 drives the screw rod 509 to rotate, the screw rod 509 rotates on the inner wall of the connecting rail 501, the screw rod 509 drives the auxiliary block 510 to move, the auxiliary block 510 slides on the inner wall of the connecting rail 501, the auxiliary block 510 drives the connecting bar 514 to move, the connecting bar 514 drives the square rod 515 to move, the square rod 515 drives the ring 504 to move, the ring 504 drives the rotating rod 503 to move, the rotating rod 503 drives the roller 505 to move, and after moving to the appropriate position, the traction rope 512 is connected to the connecting piece 7 connected to the engine through the connecting structure 6. When the connecting bar 514 moves, the servo motor 502 drives the transmission shaft 511 to rotate, and the transmission shaft 511 drives the transmission The driving belt 507 is in operation, the transmission belt 507 drives the rotating shaft 506 to rotate, the rotating shaft 506 drives the round rod 513 to rotate, the round rod 513 drives the rotating rod 503 to rotate, the rotating rod 503 rotates on the inner wall of the ring 504, the rotating rod 503 drives the roller 505 to rotate, the roller 505 drives the traction rope 512 to be retracted and released, and then the servo motor 502 is reversed, the servo motor 502 drives the rotating rod 503 to rotate, the rotating rod 503 drives the roller 505 to reel the traction rope 512, and then the traction rope 512 lifts the engine and then the engine can be placed above the platform, the mounting rod 508 is a stainless steel rod, the cross section of the mounting rod 508 is circular, and the stainless steel material can increase the service life of the mounting rod 508,To prevent the mounting rod 508 from rusting during short-term use, the rotating rod 503 is rotatably connected to the ring 504, and the rotating rod 503 is slidably connected to the round rod 513. The round ring 504 can move the rotating rod 503, and the round rod 513 can rotate with the rotating rod 503.

[0045] The effect achieved by the entire hoisting structure 5 is that when the engine needs to be hoisted, the servo motor 502 is started to run, the servo motor 502 drives the screw rod 509 to rotate, the screw rod 509 rotates on the inner wall of the connecting rail 501, the screw rod 509 drives the auxiliary block 510 to move, the auxiliary block 510 slides on the inner wall of the connecting rail 501, the auxiliary block 510 drives the connecting bar 514 to move, the connecting bar 514 drives the square rod 515 to move, the square rod 515 drives the ring 504 to move, the ring 504 drives the rotating rod 503 to move, the rotating rod 503 drives the roller 505 to move, and after moving to the appropriate position, the traction rope 512 is connected to the connecting piece 7 connected to the engine through the connecting structure 6. When the connecting bar 514 moves, the servo motor 502 The transmission shaft 511 is driven to rotate, the transmission shaft 511 drives the transmission belt 507 to operate, the transmission belt 507 drives the rotating shaft 506 to rotate, the rotating shaft 506 drives the round rod 513 to rotate, the round rod 513 drives the rotating rod 503 to rotate, the rotating rod 503 rotates on the inner wall of the ring 504, the rotating rod 503 drives the roller 505 to rotate, the roller 505 drives the traction rope 512 to be retracted and released, and then the servo motor 502 is reversed, the servo motor 502 drives the rotating rod 503 to rotate, the rotating rod 503 drives the roller 505 to reel in the traction rope 512, and then the traction rope 512 lifts the engine and then the engine can be placed above the platform. The stainless steel material can increase the service life of the mounting rod 508 and prevent the mounting rod 508 from rusting when used in a short period of time.

[0046] like Figure 1 and Figure 8As shown, the connection structure 6 includes a slide bar 62, which is fixedly connected to the traction rope 512, and a slip ring 69 is slidably connected to the arc surface of the slide bar 62. Three limit blocks 61 are fixedly connected to the lower surface of the slip ring 69, and six fixed blocks 68 are fixedly connected to the arc surface of the slide bar 62. The six fixed blocks 68 are divided into two groups. The inner walls of the limit blocks 61 and the fixed blocks 68 are rotatably connected to long rods 67, and the end of the long rod 67 away from the limit block 61 is fixedly connected to the mounting block 64, and the end of the mounting block 64 away from the long rod 67 is fixedly connected to the fitting block 65, and the fitting block 65 is fitted with the connecting piece 7. When the traction rope 512 needs to be connected to the connecting piece 7, the slip ring 69 is pulled to move upward, and the slip ring 69 drives the limit block 61 to move, and the limit block 61 drives all the long rods 67 to move, and then The rear long rod 67 drives the mounting block 64 to move, and the mounting block 64 drives the fitting block 65 to retract inward, and then the connecting structure 6 is placed in the connecting piece 7, and then the slip ring 69 is pressed downward, and then the long rod 67 drives the fitting block 65 to open the connecting piece 7 to connect the traction rope 512. The side of the fitting block 65 away from the mounting block 64 is fixedly connected with an anti-skid pad 66, and the anti-skid pad 66 is a rubber pad. The anti-skid pad 66 can increase the friction between the fitting block 65 and the connecting piece 7 to avoid loosening when the fitting block 65 is connected to the connecting piece 7. Two handle bars 63 are fixedly connected to the upper surface of the slip ring 69. The cross-section of the handle bar 63 is circular. When the slip ring 69 needs to be pulled, the handle bar 63 can be directly pulled, and the handle bar 63 drives the slip ring 69 to move, and the handle bar 63 makes it more convenient to move the slip ring 69.

[0047] The effect achieved by the entire connecting structure 6 is that when it is necessary to connect the traction rope 512 with the connecting piece 7, the slip ring 69 is pulled to move upward, the slip ring 69 drives the limit block 61 to move, the limit block 61 drives all the long rods 67 to move, and then the long rod 67 drives the installation block 64 to move, the installation block 64 drives the fitting block 65 to shrink inward, and then the connecting structure 6 is placed in the connecting piece 7, and then the slip ring 69 is pressed downward and then the long rod 67 drives the fitting block 65 to open and connect the connecting piece 7 with the traction rope 512, the anti-slip pad 66 can increase the friction between the fitting block 65 and the connecting piece 7 to avoid loosening when the fitting block 65 is connected to the connecting piece 7, and when it is necessary to pull the slip ring 69, the handle 63 can be directly pulled, and the handle 63 drives the slip ring 69 to move, and the handle 63 makes it more convenient to move the slip ring 69.

[0048] The overall working principle is that when the engine needs to be fixed, the engine is placed on the extension plate 402 and the sleeve rod 403, and then the weight of the engine drives the extension plate 402 and the sleeve rod 403 to move downward, the sleeve rod 403 drives the extension rod 413 to move, the extension rod 413 slides on the inner wall of the sleeve rod 403, the extension rod 413 drives the moving block 414 to move, the moving block 414 slides on the inner wall of the connecting block 401, the moving block 414 drives the spring 412 to contract, the moving block 414 drives the connecting block 416 to move, the connecting block 416 drives the connecting rod 410 to move, the connecting rod 410 drives the slider 411 to move, the slider 411 slides inside the slide rail 404, the slider 411 drives the fixed rod 405 to move, the fixed rod 405 drives the telescopic rod 406 to move, and the telescopic rod 406 drives the top The spring 418 and the connecting rod 407 move, the connecting rod 407 drives the extrusion block 408 to move, and then the extrusion block 408 contacts the engine, the connecting rod 407 slides on the inner wall of the telescopic rod 406, and the connecting rod 407 drives the top spring 418 to contract. When the engine is moved away, the top spring 418 and the spring 412 are stretched to drive the sleeve rod 403 and the connecting rod 407 to reset. The anti-skid groove 409 can increase the friction between the extrusion block 408 and the engine to avoid sliding when the engine is squeezed and fixed. The limiting rod 417 can limit the slider 411 to avoid the slider 411 from deflecting when sliding on the inner wall of the slide rail 404, thereby improving the sliding stability of the slider 411. The auxiliary rod 415 can limit the spring 412 to avoid the spring 412 from deforming during use, thereby improving the service life of the spring 412.

[0049] When the engine needs to be hoisted, the servo motor 502 is started to operate, the servo motor 502 drives the screw rod 509 to rotate, the screw rod 509 rotates on the inner wall of the connecting rail 501, the screw rod 509 drives the auxiliary block 510 to move, the auxiliary block 510 slides on the inner wall of the connecting rail 501, the auxiliary block 510 drives the connecting bar 514 to move, the connecting bar 514 drives the square rod 515 to move, the square rod 515 drives the ring 504 to move, the ring 504 drives the rotating rod 503 to move, the rotating rod 503 drives the roller 505 to move, after moving to the appropriate position, the traction rope 512 is connected to the connecting piece 7 connected to the engine through the connecting structure 6, when the connecting bar 514 moves, the servo motor 502 drives the transmission shaft 511 The transmission shaft 511 drives the transmission belt 507 to operate, the transmission belt 507 drives the rotating shaft 506 to rotate, the rotating shaft 506 drives the round rod 513 to rotate, the round rod 513 drives the rotating rod 503 to rotate, the rotating rod 503 rotates on the inner wall of the ring 504, the rotating rod 503 drives the roller 505 to rotate, the roller 505 drives the traction rope 512 to retract and release, and then the servo motor 502 is reversed, the servo motor 502 drives the rotating rod 503 to rotate, the rotating rod 503 drives the roller 505 to reel in the traction rope 512, and then the traction rope 512 lifts the engine and then the engine can be placed above the platform. The stainless steel material can increase the service life of the mounting rod 508 and prevent the mounting rod 508 from rusting when used in a short period of time.

[0050] When it is necessary to connect the traction rope 512 with the connecting piece 7, pull the slip ring 69 to move upward, the slip ring 69 drives the limit block 61 to move, the limit block 61 drives all the long rods 67 to move, and then the long rod 67 drives the installation block 64 to move, the installation block 64 drives the fitting block 65 to shrink inward, and then put the connecting structure 6 into the connecting piece 7, and then press the slip ring 69 downward and then the long rod 67 drives the fitting block 65 to open and connect the connecting piece 7 with the traction rope 512, the anti-slip pad 66 can increase the friction between the fitting block 65 and the connecting piece 7 to avoid loosening when the fitting block 65 is connected to the connecting piece 7, and when it is necessary to pull the slip ring 69, you can directly pull the handle 63, the handle 63 drives the slip ring 69 to move, and the handle 63 makes it more convenient to move the slip ring 69.

[0051] 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 made to the above embodiment based on the technical essence of the present invention without departing 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.

Claims

1. A micro-turbojet engine test bench clamping mechanism, comprising a base (1), a fixing structure (4) and a connecting structure (6), characterized in that: The upper surface of the base (1) is fixedly connected to a table top (2), the lower surface of the base (1) is fixedly connected to a support seat (3), the upper surface of the table top (2) is provided with a fixing structure (4), the upper surface of the fixing structure (4) is provided with a plurality of connecting blocks (401), the plurality of connecting blocks (401) are fixedly connected to the table top (2), the plurality of connecting blocks (401) are grouped in pairs, and the upper ends of the connecting blocks (401) are fixedly connected to a slide rail (401). 4), the inner wall of the slide rail (404) is slidably connected to a slider (411), the upper end of the slider (411) is fixedly connected to a fixed rod (405), the fixed rod (405) is fixedly connected to a plurality of telescopic rods (406) on a side close to the table top (2), the inner wall of the telescopic rod (406) is slidably connected to a connecting rod (407), a plurality of top springs (418) are arranged inside the telescopic rod (406), and the two ends of the top spring (418) are respectively connected to the telescopic rod (406) and the connecting rod (407) is connected to the connecting rod (407). The retracting rod (406) and the connecting rod (407) are fixedly connected, and one end of the connecting rod (407) away from the telescopic rod (406) is fixedly connected to the extrusion block (408), and the inner wall of the connecting block (401) is slidably connected to the moving block (414), and the two moving blocks (414) are fixedly connected to the extension rod (413) on the sides close to each other, and the ends of the extension rods (413) are slidably connected to the sleeve rod (403), and the sleeve rod (403) is slidably connected to the sleeve rod (403) on both sides. Both are fixedly connected with an extension plate (402); a side of the slider (411) away from the extension rod (413) is fixedly connected with a connection block (416); an inner wall of the connection block (416) is rotatably connected with a connection rod (410); the connection rod (410) is rotatably connected to the slider (411); a spring (412) is arranged inside the connection block (401); two ends of the spring (412) are respectively fixedly connected with the connection block (401) and the moving block (414).

2. A micro-turbojet engine test bench clamping mechanism according to claim 1, characterized in that: A plurality of anti-skid grooves (409) are provided on one side of the extrusion block (408) away from the connection rod (407), and the plurality of anti-skid grooves (409) are evenly distributed on the extrusion block (408).

3. The micro-turbojet engine test bench clamping mechanism according to claim 1, characterized in that: A limiting rod (417) is fixedly connected inside the slide rail (404), and the limiting rod (417) is slidably connected to the sliding block (411).

4. A micro-turbojet engine test bench clamping mechanism according to claim 3, characterized in that: An auxiliary rod (415) is fixedly connected inside the connection block (401), the auxiliary rod (415) is slidably connected to the moving block (414), and the spring (412) is sleeved on the arc surface of the auxiliary rod (415).

5. The micro-turbojet engine test bench clamping mechanism according to claim 4, characterized in that: The upper surface of the table top (2) is provided with a hanging structure (5), the hanging structure (5) comprising a plurality of brackets (516), the plurality of brackets (516) being fixedly connected to the table top (2), the plurality of brackets (516) being divided into two groups, the upper end of one group of brackets (516) being fixedly connected to a connecting rail (501), the inner wall of the connecting rail (501) being slidably connected to an auxiliary block (510), the inner part of the guide rail being rotatably connected to a lead screw (509), one side of the bracket (516) being fixedly connected to a mounting rod (508), the end of the mounting rod (508) away from the bracket (516) being fixedly connected to a servo motor (502), the output end of the servo motor (502) being fixedly connected to the lead screw (509), the output end of one of the servo motors (502) being fixedly connected to a transmission shaft (511), and the sides of the two auxiliary blocks (510) close to each other being fixedly connected to a connecting bar (511). 514), a plurality of square rods (515) are fixedly connected to the mutually adjacent sides of the two connecting strips (514), a circular ring (504) is fixedly connected to the upper surface of the square rod (515), a rotating rod (503) is rotatably connected to the inner wall of the circular ring (504), a round rod (513) is slidably connected to the inner wall of the rotating rod (503), a rotating shaft (506) is fixedly connected to one end of the round rod (513) close to the transmission shaft (511), and the rotating shaft (506) is fixedly connected to the inner wall of the rotating rod (503). The arc surface of the rotating rod (503) is connected to a transmission belt (507), the transmission belt (507) is connected to a transmission shaft (511), the arc surface of the rotating rod (503) is fixedly connected to a plurality of rollers (505), the arc surface of the rollers (505) is fixedly connected to a traction rope (512), a connecting piece (7) is provided at the lower end of the traction rope (512), and the connecting piece (7) is connected to the traction rope (512) through a connecting structure (6).

6. The micro-turbojet engine test bench clamping mechanism according to claim 5, characterized in that: The mounting rod (508) is a stainless steel rod, and the cross section of the mounting rod (508) is circular.

7. The micro-turbojet engine test bench clamping mechanism according to claim 5, characterized in that: The rotating rod (503) is rotatably connected to the circular ring (504), and the rotating rod (503) is slidably connected to the round rod (513). The circular ring (504) can move the rotating rod (503) and the round rod (513) can rotate with the rotating rod (503).

8. The micro-turbojet engine test bench clamping mechanism according to claim 2, characterized in that: The lower end of the traction rope (512) is provided with a connecting structure (6), and the connecting structure (6) includes a sliding rod (62), and the sliding rod (62) is fixedly connected to the traction rope (512). The arc surface of the sliding rod (62) is slidably connected to a slip ring (69), and the lower surface of the slip ring (69) is fixedly connected to three limit blocks (61). The arc surface of the sliding rod (62) is fixedly connected to six fixed blocks (68), and the six fixed blocks (68) are divided into two groups. The inner walls of the limit blocks (61) and the fixed blocks (68) are rotatably connected to a long rod (67), and the end of the long rod (67) away from the limit block (61) is fixedly connected to a mounting block (64), and the end of the mounting block (64) away from the long rod (67) is fixedly connected to a fitting block (65), and the fitting block (65) is fitted with the connecting piece (7).

9. The micro-turbojet engine test bench clamping mechanism according to claim 7, characterized in that: A side of the fitting block (65) away from the mounting block (64) is fixedly connected with an anti-skid pad (66), and the anti-skid pad (66) is a rubber pad.

10. The micro-turbojet engine test bench clamping mechanism according to claim 7, characterized in that: Two handle bars (63) are fixedly connected to the upper surface of the slip ring (69), and the cross section of the handle bars (63) is circular.

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