An automatic driving positioning device suitable for testing an air intake cabin system

Abstract

The present application relates to the technical fields of test and measurement of aero-engine and its compression components, and discloses an automatic driving positioning device suitable for a test air inlet cabin system, which comprises two parallel guide rail grooves, and driving devices are arranged on the guide rail grooves; the driving device comprises a driving frame and a driving wheel, the driving frame is detachably connected with a support frame of the air inlet cabin through a fixing block, a guide hole is arranged on the fixing block, a guide rod which can be inserted into the guide hole is arranged on the driving frame, a limiting assembly is arranged between the driving wheel and the fixing block, and a pre-tightening spring is arranged on the outer wall of the guide rod between the limiting assembly and the fixing block. The present application not only has the function of automatically adapting to the flatness of the track, but also, when the pre-tightening spring applies a downward pre-tightening force to the driving wheel, the driving wheel also becomes a load wheel, which can prevent the driving wheel and the guide rail groove from slipping due to too small friction force, and can also reduce the load of the support frame, thereby avoiding the problem that the support frame of the air inlet cabin is prone to deformation.

Description

Technical Field

[0001] This invention relates to the field of testing and experimental technology for aero-engines and their compression components, and specifically to an automatic drive positioning device suitable for testing air intake systems. Background Technology

[0002] Aero-engine whole-machine test equipment and its compression component test equipment require stable airflow at the test specimen's inlet, necessitating the use of an air intake system to stabilize the airflow. As one of the most crucial components of the test equipment, the air intake system needs to be adjusted axially according to the test specimen's length, test requirements, and installation / inspection procedures. Operators must move the air intake system frequently. Furthermore, the air intake system is heavy, requiring significant pulling force during movement. Currently, the air intake system is moved manually by dragging, resulting in low automation, time-consuming and labor-intensive operations, severely impacting work efficiency. This method also suffers from spatial constraints, unstable dragging structures, high operational safety risks, and poor test equipment positioning, hindering the smooth conduct of demanding scientific research experiments. Therefore, there is an urgent need to develop a highly automated, convenient, fast, and efficient automatic drive and positioning device for the test air intake system to address these issues. Summary of the Invention

[0003] In view of this, the present invention provides an automatic drive positioning device suitable for test air intake systems, which not only has the function of automatically adapting to the flatness of the track; but also, when the preload spring applies a downward preload force to the drive wheel, the drive wheel also becomes a load-bearing wheel, which can prevent slippage caused by insufficient friction between the drive wheel and the guide rail groove, while also reducing the load on the support frame and avoiding the problem of easy deformation of the air intake support frame.

[0004] An automatic drive positioning device for a test air intake system includes two parallel guide rail slots, on which a drive device for moving the air intake is mounted. The drive device includes a drive frame and drive wheels mounted in each guide rail slot. The drive wheels are driven to rotate by a motor mounted on the drive frame. The drive frame is detachably connected to the support frame of the air intake via a fixing block. The fixing block has a guide hole at the position corresponding to each drive wheel. The drive frame is provided with a guide rod that can be inserted into the guide hole. A limit component is provided between the drive wheel and the fixing block on the guide rod. A preload spring is sleeved on the outer wall of the guide rod between the limit component and the fixing block.

[0005] Furthermore, a load-bearing plate is provided above the fixed block, and a pre-tightening spring is installed between the load-bearing plate and the limiting component. The load-bearing plate is installed above the fixed block by multiple pre-tightening bolts.

[0006] Furthermore, the two drive wheels of each drive unit are connected by a transmission shaft, on which a transmission gear is provided. The motor output shaft is connected to the transmission gear through a gear meshing adjustment device. The transmission shaft and each drive wheel are driven by a coupling guide hoop.

[0007] Furthermore, the fixing block is provided with a U-shaped slot at the position where it connects with the air intake support frame; the U-shaped slot is fixed to the fixing block by bolts, forming a receiving cavity that can be fitted onto the support frame.

[0008] Furthermore, both the drive wheel and the guide rail groove are equipped with matching anti-slip textures.

[0009] Furthermore, the air intake compartment is equipped with at least two support frames along the axial direction, and each support frame is equipped with a drive device.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] 1. The present invention provides driving force for moving the air intake compartment through the driving device, and also has the function of automatically adapting to the flatness of the track; moreover, when the preload spring applies downward preload force to the drive wheel, the drive wheel also becomes a load wheel, which can prevent slippage caused by insufficient friction between the drive wheel and the guide rail groove, and also reduce the load on the support frame, thus avoiding the problem that the support frame of the air intake compartment is prone to deformation.

[0012] 2. The drive positioning device of the air intake chamber of the present invention is designed with two sets of drive devices, one in front and one in the rear. The two sets of drive devices are respectively installed on the air intake chamber support frame. One set can be installed in the front half of the air intake chamber and the other set can be installed in the rear half of the air intake system. The air intake chamber is moved back and forth by a synchronous drive method of pulling forward and pushing backward (or pushing forward and pulling backward) to ensure the smooth movement of the test air intake chamber system. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the automatic drive positioning device applicable to the test air intake system in the embodiment;

[0015] Figure 2 This is a schematic diagram showing the positional relationship between the driving device and the guide rail groove in the embodiment;

[0016] Figure 3 This is a schematic diagram of the drive device and the fixing block in the embodiment;

[0017] Figure 4 This is a side view of the driving device and the fixing block in the embodiment.

[0018] The components are as follows: 1. Air intake compartment; 2. Support frame; 3. Guide rail groove; 4. Drive device; 5. Guide rod; 6. Fixing block; 7. U-shaped slot; 9. Preload spring; 10. Transmission gear; 11. Gear meshing adjustment device; 12. Motor; 13. Transmission shaft; 14. Coupling guide hoop; 15. Drive wheel; 16. Drive frame; 17. Crossbeam; 18. Load-bearing plate; 19. Preload bolt. Detailed Implementation

[0019] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0020] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] Example

[0022] See Figures 1-4 An automatic drive positioning device suitable for a test air intake chamber system includes two parallel guide rail grooves 3, and a drive device 4 for driving the air intake chamber 1 to move is provided on the guide rail grooves 3. The drive device 4 includes a drive frame 16 and a drive wheel 15 provided in each guide rail groove 3. The drive wheel 15 is driven to rotate by a motor 12 provided on the drive frame 16. The drive frame 16 is detachably connected to the support frame 2 of the air intake chamber 1 through a fixing block 6. The fixing block 6 is provided with a guide hole at the position corresponding to each drive wheel 15. The drive frame 16 is provided with a guide rod 5 that can be inserted into the guide hole. A limit component is provided between the drive wheel 15 and the fixing block 6. A preload spring 9 is sleeved on the outer wall of the guide rod 5 between the limit component and the fixing block 6.

[0023] In this embodiment, the support frame 2 of the air intake 1 is placed on two parallel guide rail grooves 3, and the drive device 4 is detachably connected to the support frame 2. Under the limiting and guiding effect of the guide rod 5 and the guide hole, the preload spring 9 structure can not only automatically adjust the height of the drive device 4, so that the drive wheel 15 driven by the motor 12 can always interact with the guide rail groove 3, providing a driving force to move the air intake 1, but also has the function of automatically adapting to the flatness of the track. Moreover, when the preload spring 9 applies a downward preload force to the drive wheel 15, it also turns the drive wheel 15 into a load-bearing wheel, which can prevent the drive wheel 15 from slipping due to insufficient friction with the guide rail groove 3, and also reduce the load on the support frame 2, avoiding the problem that the support frame 2 of the air intake 1 is prone to deformation.

[0024] In this embodiment, the motor 12 can be a drive motor with a 380V power supply. The contact surface between the drive control unit of the motor 12 and the drive frame 16 is made of a non-metallic material with good insulation to ensure that the 380V AC power used is electrically insulated from the test air intake chamber 1 system and other equipment, and that the electrical equipment is properly grounded to ensure electrical safety. At the same time, the drive program control in the drive control unit of the motor 12 can be locked when the motor 12 is stationary to ensure the normal operation of the test air intake chamber 1 system in a stationary state.

[0025] A load-bearing plate 18 is provided above the fixed block 6, and a preload spring 9 is installed between the load-bearing plate 18 and the limiting component. The load-bearing plate 18 is installed above the fixed block 6 by multiple preload bolts 19. In this embodiment, the relative height between the load-bearing plate 18 and the fixed block 6 can be adjusted by rotating the preload bolts 19, thereby adjusting the preload force of the preload spring 9 and ensuring that the drive wheel 15 can maintain contact with the guide rail groove 3.

[0026] Each drive device 4 has two drive wheels 15 connected by a transmission shaft 13. A transmission gear 10 is mounted on the transmission shaft 13. The output shaft of the motor 12 is connected to the transmission gear 10 via a gear meshing adjustment device 11 (this device is a conventional structure; generally, the output shaft of the motor 12 is mounted on a telescopic mechanism, which controls the extension and retraction of the gear on the output shaft of the motor 12 to adjust the meshing state between the transmission gear 10 and the gear on the motor output shaft). The transmission shaft 13 is connected to each drive wheel 15 by a coupling guide hoop 14 to solve the problem of the drive wheel 15 getting stuck in the guide rail groove 3 due to differences in parallelism and straightness. In this embodiment, the drive device 4 is designed with a guiding coupling guide hoop 14, which allows the drive wheel 15 to slightly shift left and right when its side is pressed against the side wall of the guide rail groove 3, preventing the drive wheel 15 from getting stuck and ensuring normal torque transmission in the direction of movement.

[0027] The fixing block 6 has a U-shaped slot 7 at the connection position with the support frame 2 of the air intake 1. The U-shaped slot 7 is fixed to the fixing block 6 with bolts, forming a receiving cavity that can be fitted onto the support frame 2, realizing the detachable fixing of the fixing block 6 and the support frame 2. Before the air intake 1 needs to be moved, the U-shaped slot 7 and the fixing block 6 form a clamp-like structure, and then the U-shaped slot 7 is machined with bolts to fix it to the fixing block 6, realizing the detachable fixing of the fixing block 6 on the crossbeam 17 of the support frame 2.

[0028] Both the drive wheel 15 and the guide rail groove 3 are provided with matching anti-slip textures. In this embodiment, the contact surface between the drive wheel 15 and the guide rail groove 3 is designed with triangular textures to increase the friction coefficient between the guide rail and the drive wheel 15, ensuring sufficient torque to drive the test air intake chamber 1 system.

[0029] At least two support frames 2 are installed along the axial direction of the air intake compartment 1, and each support frame 2 is equipped with a drive device 4. In this embodiment, the drive positioning device of the air intake compartment 1 is designed with two sets of drive devices 4, one in front and one in the rear. The two sets of drive devices 4 are respectively installed on the support frame 2 of the air intake compartment 1, one set is installed in the front half of the air intake compartment 1, and the other set is installed in the rear half of the air intake system. The air intake compartment 1 moves back and forth by synchronous drive mode of front pull and rear push (or front push and rear pull).

[0030] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An automatic drive positioning device suitable for testing an air intake system, characterized in that, The application relates to an air intake cabin driving device, which comprises two parallel guide rail grooves (3) provided with driving devices (4) for driving the air intake cabin (1) to move; the driving device (4) comprises a driving frame (16) and driving wheels (15) arranged in each guide rail groove (3) and driven to rotate by a motor (12) arranged on the driving frame (16); the driving frame (16) is detachably connected with a supporting frame (2) of the air intake cabin (1) through a fixing block (6), the fixing block (6) is provided with a guide hole at a position corresponding to each driving wheel (15), the driving frame (16) is provided with a guide rod (5) inserted into the guide hole; a force bearing piece (18) is arranged above the fixing block (6), the force bearing piece (18) is mounted above the fixing block (6) through a plurality of pre-tightening bolts (19); a limiting assembly is arranged on the outer wall of the guide rod (5) between the driving wheel (15) and the force bearing piece (18), the outer wall of the guide rod (5) is provided with a pre-tightening spring (9) arranged between the limiting assembly and the force bearing piece (18); the two driving wheels (15) of each driving device (4) are connected through a transmission shaft (13), the transmission shaft (13) is provided with a transmission gear (10), the output shaft of the motor (12) is in transmission connection with the transmission gear (10) through a gear meshing adjusting device (11); the transmission shaft (13) and each driving wheel (15) are drivingly connected through a shaft coupling guide hoop (14). The fixing block (6) is provided with a U-shaped clamping groove (7) at a position connected with the supporting frame (2) of the air intake cabin (1); the U-shaped clamping groove (7) is fixed on the fixing block (6) through bolts, thereby forming a containing cavity capable of being sleeved on the supporting frame (2); The air intake cabin (1) is axially provided with at least two supporting frames (2), each supporting frame (2) is provided with the driving device (4).

2. The automatic drive positioning device for test inlet plenum system according to claim 1, wherein The driving wheel (15) and the guide rail groove (3) are provided with matched anti-skid lines.

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