Steering engine loading test system capable of manually adjusting position

Abstract

The invention discloses a steering engine loading test system capable of manually adjusting the position, belongs to the field of steering engine loading test, and aims to solve the problem that one steering engine load test board can only test steering engines of one model and size. Comprising a loading testboard, a front end clamping device is arranged on the front portion of the loading testboard, the loading testboard comprises a driving motor and a torque sensor, an output shaft of the driving motor is connected with a front end shaft head of the torque sensor, and a rear end clamping device comprises a testing steering engine. The torque sensor and the testing steering engine are connected through the rotary steering engine connecting assembly or the linear steering engine connecting assembly, and the linear steering engine connecting assembly and the rotary steering engine connecting assembly are replaced with each other, so that loading testing of the linear steering engine and the rotary steering engine is achieved; the test system has the characteristics of low cost, small occupied space, simple and reliable structure and relatively high precision.

Description

Technical Field

[0001] The invention belongs to the field of steering gear loading test, and in particular relates to a steering gear loading test system with manually adjustable position. Background Art

[0002] In the process of developing new types of missiles, aircraft and other aircraft, it is necessary to conduct comprehensive tests on the performance of the aircraft to ensure that the performance of the aircraft strictly meets the index requirements. Compared with traditional full-physical experiments, the space environment of the aircraft is simulated under laboratory conditions, and ground semi-physical simulation experiments are conducted. The experimental data obtained is more reliable and repeatable, and can reproduce the working conditions of the aircraft under various extreme conditions. While ensuring that the performance of the aircraft meets the index requirements, it significantly shortens the R&D cycle and saves scientific research funds. Therefore, ground semi-physical simulation experiments have become a necessary step in the development process of various aircraft and have received widespread attention.

[0003] As the actuator of the aircraft control system, the servo has a direct impact on the overall performance of the aircraft. In order to simulate the torque applied to the servo under various flight conditions in the ground semi-physical simulation experiment, a servo loading test system has been designed. As one of the important equipment in the ground semi-physical simulation experiment, the servo loading test system is used to perform torque loading tests on the servo shaft of the aircraft to simulate the various torques applied to the rudder during flight. A high-performance load simulator is the basis for ensuring the reliability and credibility of the ground semi-physical simulation experiment.

[0004] In the actual simulation experiment, the servo performs position servo movement according to the command. Since there is a rigid connection between the servo and the servo load simulator, the servo load simulator moves with the servo, and at the same time receives the torque loading command calculated in real time by the simulation computer, outputs the corresponding torque, and feeds back the torque acting on the servo through the torque sensor to realize torque servo. The traditional servo load test system is cross-type or side-by-side. Although it can detect multiple servos at a time, it occupies a large space, is costly, and is not universal. In addition, a servo load test bench can only test servos of one model and size, which has great limitations. Summary of the invention

[0005] The purpose of the present invention is to provide a servo load test system with manually adjustable position, so as to solve the problem that a servo load test bench can only test servos of one model and size. The technical solution adopted by the present invention is as follows:

[0006] A manually adjustable position steering gear loading test system comprises a loading test bench, a front end clamping device, a central disassembly switching device, a rear end clamping device and an adjustment platform;

[0007] The central disassembly switching device includes a rotary steering gear connection component and a linear steering gear connection component, the rotary steering gear connection component includes a first central output shaft, the linear steering gear connection component includes a ball screw, a second central output shaft and an S-type force sensor, the rear end of the screw sleeve of the ball screw is connected to the front end of the second central output shaft, and one end of the S-type force sensor is connected to the rear end of the second central output shaft;

[0008] The front-end clamping device includes a driving motor, a motor seat, a torque sensor and a sensor support. The motor seat and the sensor support are arranged front and back at the front of the loading test bench. The driving motor is fixed on the motor seat. The torque sensor is connected to the sensor support. The output shaft of the driving motor is connected to the front shaft head of the torque sensor.

[0009] The rear end clamping device includes a steering gear seat and a test steering gear, the test steering gear is fixed on the steering gear seat, the steering gear seat is connected to the adjustment platform, and the adjustment platform is arranged at the rear of the loading test bench;

[0010] The front end of the first central output shaft is connected to the rear end shaft head of the torque sensor, and the rear end of the first central output shaft is connected to the output end of the test servo; or the front end of the ball screw is connected to the rear end shaft head of the torque sensor, and the other end of the S-type force sensor is connected to the output end of the test servo.

[0011] Furthermore, the sensor support is provided with two limiting components, and the two limiting components are respectively connected to the left and right sides of the outer sleeve of the torque sensor.

[0012] Furthermore, the output shaft of the driving motor is connected to the front end shaft head of the torque sensor through a motor coupling.

[0013] Furthermore, the rear end shaft head of the torque sensor is connected to the front end of the first central output shaft through a sensor coupling, or the rear end shaft head of the torque sensor is connected to the front end of the screw of the ball screw 41 through a sensor coupling.

[0014] Furthermore, the rotary servo connection assembly also includes a first servo coupling, the linear servo connection assembly also includes a second servo coupling, the rear end of the first central output shaft is connected to the output end of the test servo through the first servo coupling; or the other end of the S-type force sensor is connected to the output end of the test servo through the second servo coupling.

[0015] Furthermore, a magnetic scale is provided around the torque sensor, the magnetic scale measures the output shaft angle information of the drive motor, and the magnetic scale is electrically connected to the industrial computer.

[0016] Furthermore, the test servo adjustment platform includes a lifting platform and a horizontal displacement platform, a plurality of vertically arranged guide columns are provided at the bottom of the lifting platform, a plurality of guide holes are provided on the horizontal displacement platform, a screw hole is provided on the lifting platform, a lifting motor is provided on the horizontal displacement platform, a second vertically arranged screw rod cooperates with the screw hole, a plurality of guide columns slide in correspondence with a plurality of the guide holes, the second screw rod is connected to the output end of the lifting motor, guide grooves are provided at the front and rear of the loading test platform, the horizontal displacement platform slides in correspondence with the guide grooves, guide rails are provided on the left and right of the lifting platform, and the servo seat slides in correspondence with the guide rails.

[0017] Furthermore, the motor seat is detachably connected to the loading test bench, the sensor support is detachably connected to the loading test bench, the limiting member is detachably connected to the torque sensor, and the limiting member is detachably connected to the sensor support.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The purpose of the present invention is to solve the problems that the cost of a servo load simulator is high, the space occupied is large, and a servo loading test bench can only test servos of one model and size. The present invention proposes a servo loading test system with manually adjustable position, which realizes loading tests on both linear servos and rotary servos by replacing a linear servo connection component with a rotary servo connection component. The test system has the characteristics of low cost, small space occupied, simple and reliable structure, and relatively high accuracy.

[0020] 2. The present invention can not only realize the mutual replacement of the linear servo connection assembly and the rotary servo connection assembly by simple disassembly, but also adapt to the requirements of testing servos of different models and sizes by manually adjusting the position of the test servo. This test system has the characteristics of low cost, small space occupation, simple and reliable structure, and relatively high accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is an axonometric diagram of the present invention for testing a rotary steering gear;

[0022] Figure 2 It is a right side view of the test rotary steering gear of the present invention;

[0023] Figure 3 is an axonometric diagram of the present invention for testing a linear servo;

[0024] Figure 4 It is a right side view of the test linear servo of the present invention.

[0025] In the figure, 1. loading test bench, 11. guide groove, 2. front end clamping device, 21. driving motor, 22. motor seat, 23. motor coupling, 24. torque sensor, 25. limiting member, 26. sensor coupling, 27. sensor support, 3. rotary servo connection assembly, 31. first central output shaft, 32. first servo coupling, 4. linear servo connection assembly, 41. ball screw, 42. second central output shaft, 43. S-type force sensor, 44. second servo coupling, 5. rear end clamping device, 51. servo seat, 52. test servo, 6. adjustment platform, 61. lifting platform, 62. guide rail, 63. horizontal displacement platform, 64. guide column, 65. second screw. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0027] The connection mentioned in the present invention is divided into fixed connection and detachable connection. The fixed connection is a non-detachable connection including but not limited to conventional fixed connection methods such as folding connection, rivet connection, bonding connection and welding connection. The detachable connection includes but not limited to conventional detachable methods such as bolt connection, snap connection, pin connection and hinge connection. When the specific connection method is not clearly defined, it is assumed that at least one connection method can be found in the existing connection methods to achieve the function, and those skilled in the art can choose according to their needs. For example: welding connection is selected for fixed connection, and bolt connection is selected for detachable connection.

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings. The following embodiments are provided to explain the present invention, but the present invention is not limited to the following embodiments.

[0029] Example: Figure 1 to Figure 4 As shown, a manually adjustable position steering gear loading test system comprises a loading test bench 1, a front end clamping device 2, a central disassembly switching device, a rear end clamping device 5 and an adjustment platform 6;

[0030] The central disassembly switching device includes a rotary steering gear connection component 3 and a linear steering gear connection component 4, the rotary steering gear connection component 3 includes a first central output shaft 31, the linear steering gear connection component 4 includes a ball screw 41, a second central output shaft 42 and an S-type force sensor 43, the rear end of the screw sleeve of the ball screw 41 is connected to the front end of the second central output shaft 42, and one end of the S-type force sensor 43 is connected to the rear end of the second central output shaft 42;

[0031] The front end clamping device 2 includes a driving motor 21, a motor seat 22, a torque sensor 24 and a sensor support 27. The motor seat 22 and the sensor support 27 are arranged front and back at the front part of the loading test bench 1. The driving motor 21 is fixed on the motor seat 22. The torque sensor 24 is connected to the sensor support 27. The output shaft of the driving motor 21 is connected to the front end shaft head of the torque sensor 24.

[0032] The rear end clamping device 5 includes a steering gear seat 51 and a test steering gear 52. The test steering gear 52 is fixed on the steering gear seat 51. The steering gear seat 51 is connected to the adjustment platform 6. The adjustment platform 6 is arranged at the rear of the loading test bench 1.

[0033] The front end of the first central output shaft 31 is connected to the rear end shaft head of the torque sensor 24, and the rear end of the first central output shaft 31 is connected to the output end of the test servo 52; or the front end of the screw of the ball screw 41 is connected to the rear end shaft head of the torque sensor 24, and the other end of the S-type force sensor 43 is connected to the output end of the test servo 52.

[0034] The loading test bench 1 mainly serves to support the entire system, and a control panel is provided on the loading test bench 1 to control the adjustment of the adjustment platform 6, so that the test servo 52 can reach the appropriate position for testing. The function of the linear servo connection assembly 4 is to convert the rotational torque into a linear force to serve the test of the test servo 52. The function of the S-type force sensor 43 is to measure the linear force of the drive motor 21, and the S-type force sensor 43 is set at one end close to the test servo 52 to avoid the influence of the friction of the ball screw assembly on the friction of the entire loading test;

[0035] The specific working process is: first, the rotary servo connection component 3 or the linear servo connection component 4 should be selected according to the servo 52 to be tested for disassembly and installation of the tooling; if the test servo 52 is a rotary servo, the rotary servo connection component 3 is selected to connect the front end clamping device 2 and the rear end clamping device 5; if the test servo is a linear servo, the linear servo connection component 4 is selected to connect the front end clamping device 2 and the rear end clamping device 5; when connecting, it is necessary to operate the operating console of the loading test bench 1 to adjust the horizontal, vertical and up and down lifting three degrees of freedom of the adjustment platform 6, so that the test servo 52 is in the best position for the loading test, and then set the expected output torque and speed of the drive motor 21, and then transmit the actual torque and speed to the industrial computer through the torque sensor 24, the industrial computer calculates the test result and compares it with the expected torque; the linear force is received by the S-type force sensor 43 and fed back to the industrial computer, the industrial computer can also calculate the test result and compare it with the expected linear force.

[0036] Two limiting components 25 are provided on the sensor support 27 , and the two limiting components 25 are respectively connected to the left and right sides of the outer sleeve of the torque sensor 24 .

[0037] The purpose of the present invention is to solve the problems that the servo load simulator has high cost, large space and a servo loading test bench can only test one type and size of servo. The present invention proposes a servo loading test system with manually adjustable position, which realizes loading test of both linear servo and rotary servo by replacing the linear servo connection component 4 and the rotary servo connection component 3. The test system has the characteristics of low cost, small space, simple and reliable structure and relatively high accuracy.

[0038] The output shaft of the drive motor 21 is connected to the front end shaft head of the torque sensor 24 through the motor coupling 23. Such connection can ensure that the drive motor 21 can drive the central disassembly switching device to rotate normally. The torque sensor 24 is fixed between the motor base 22 and the motor coupling 23 by the limiting member 25 and the sensor support 27. The function of the torque sensor 24 is to measure the output torque and speed of the drive motor 21.

[0039] The rear end shaft head of the torque sensor 24 is connected to the front end of the first central output shaft 31 through the sensor coupling 26 , or the rear end shaft head of the torque sensor 24 is connected to the front end of the screw of the ball screw 41 through the sensor coupling 26 .

[0040] The rotary servo connection assembly 3 further includes a first servo coupling 32, and the linear servo connection assembly 4 further includes a second servo coupling 44. The rear end of the first central output shaft 31 is connected to the output end of the test servo 52 through the first servo coupling 32; or the other end of the S-type force sensor 43 is connected to the output end of the test servo 52 through the second servo coupling 44. Such connection can ensure that the central disassembly switching device drives the test servo 52 to perform the loading test normally.

[0041] A magnetic scale is provided around the torque sensor 24 , and the magnetic scale measures the output shaft angle information of the drive motor 21 . The magnetic scale is electrically connected to the industrial computer.

[0042] The test servo adjustment platform 6 includes a lifting platform 61 and a horizontal displacement platform 63. The bottom of the lifting platform 61 is provided with a plurality of guide pillars 64 arranged vertically, the horizontal displacement platform 63 is provided with a plurality of guide holes, the lifting platform 61 is provided with screw holes, the horizontal displacement platform 63 is provided with a lifting motor, a second screw rod 65 arranged vertically cooperates with the screw holes, a plurality of guide pillars 64 and a plurality of guide holes are slidably matched one by one, the second screw rod 65 is connected to the output end of the lifting motor, the loading test bench 1 is provided with guide grooves 11 in front and back, the horizontal displacement platform 63 is slidably matched with the guide grooves 11, the lifting platform 61 is provided with guide rails 62 in left and right, and the servo seat 51 is slidably matched with the guide rails 62. The adjustment platform 6 has three degrees of freedom, and its main function is to adjust the position of the test servo 52 so that it can be tested at an appropriate position, so that the servo loading test system can load test servos of different models and sizes.

[0043] The motor seat 22 is detachably connected to the loading test bench 1, the sensor support 27 is detachably connected to the loading test bench 1, the limiting member 25 is detachably connected to the torque sensor 24, and the limiting member 25 is detachably connected to the sensor support 27. This facilitates the mutual replacement of the linear servo connection assembly 4 and the rotary servo connection assembly 3.

[0044] The above embodiments are merely exemplary descriptions of the present invention and do not limit its protection scope. Those skilled in the art may also make partial changes thereto, which are within the protection scope of the present invention as long as they do not exceed the spirit of the present invention.

Claims

1. A servo loading test system with manually adjustable position, characterized in that: It comprises a loading test bench (1), a front-end clamping device (2), a central disassembly switching device, a rear-end clamping device (5) and an adjustment platform (6); The central disassembly switching device comprises a rotary steering gear connection component (3) and a linear steering gear connection component (4), the rotary steering gear connection component (3) comprises a first central output shaft (31), the linear steering gear connection component (4) comprises a ball screw (41), a second central output shaft (42) and an S-shaped force sensor (43), the rear end of the screw sleeve of the ball screw (41) is connected to the front end of the second central output shaft (42), and one end of the S-shaped force sensor (43) is connected to the rear end of the second central output shaft (42); The front end clamping device (2) comprises a driving motor (21), a motor seat (22), a torque sensor (24) and a sensor support (27); the motor seat (22) and the sensor support (27) are arranged front and rear on the front part of the loading test bench (1); the driving motor (21) is fixed on the motor seat (22); the torque sensor (24) is connected to the sensor support (27); and the output shaft of the driving motor (21) is connected to the front end shaft head of the torque sensor (24); The rear end clamping device (5) comprises a steering gear seat (51) and a test steering gear (52), wherein the test steering gear (52) is fixed on the steering gear seat (51), the steering gear seat (51) is connected to an adjustment platform (6), and the adjustment platform (6) is arranged at the rear of the loading test bench (1); The front end of the first central output shaft (31) is connected to the rear end shaft head of the torque sensor (24), and the rear end of the first central output shaft (31) is connected to the output end of the test steering gear (52); or the front end of the screw rod of the ball screw (41) is connected to the rear end shaft head of the torque sensor (24), and the other end of the S-type force sensor (43) is connected to the output end of the test steering gear (52).

2. A manually adjustable position steering gear loading test system according to claim 1, characterized in that: Two limiting components (25) are arranged on the sensor support (27), and the two limiting components (25) are respectively connected to the left and right sides of the outer sleeve of the torque sensor (24).

3. The manually adjustable position steering gear loading test system according to claim 1, characterized in that: The output shaft of the driving motor (21) is connected to the front end shaft head of the torque sensor (24) via a motor coupling (23).

4. The manually adjustable position steering gear loading test system according to claim 1, characterized in that: The rear end shaft head of the torque sensor (24) is connected to the front end of the first central output shaft (31) through a sensor coupling (26), or the rear end shaft head of the torque sensor (24) is connected to the front end of the screw of the ball screw (41) through the sensor coupling (26).

5. The manually adjustable position steering gear loading test system according to claim 1, characterized in that: The rotary steering gear connection assembly (3) further comprises a first steering gear coupling (32), and the linear steering gear connection assembly (4) further comprises a second steering gear coupling (44). The rear end of the first central output shaft (31) is connected to the output end of the test steering gear (52) via the first steering gear coupling (32); or the other end of the S-type force sensor (43) is connected to the output end of the test steering gear (52) via the second steering gear coupling (44).

6. The manually adjustable position steering gear loading test system according to claim 1, characterized in that: A magnetic scale is provided around the torque sensor (24), the magnetic scale measures the output shaft angle information of the drive motor (21), and the magnetic scale is electrically connected to the industrial control computer.

7. A manually adjustable position steering gear loading test system according to any one of claims 1 to 6, characterized in that: The tested steering gear adjustment platform (6) comprises a lifting platform (61) and a horizontal displacement platform (63); a plurality of guide pillars (64) arranged vertically are provided at the bottom of the lifting platform (61); a plurality of guide holes are provided on the horizontal displacement platform (63); a screw hole is provided on the lifting platform (61); a lifting motor is provided on the horizontal displacement platform (63); a second screw rod (65) arranged vertically is matched with the screw hole; a plurality of guide pillars (64) are slidably matched with a plurality of the guide holes in a one-to-one correspondence; the second screw rod (65) is connected to the output end of the lifting motor; a guide groove (11) is arranged front and rear on the loading test platform (1); the horizontal displacement platform (63) is slidably matched with the guide groove (11); guide rails (62) are arranged left and right on the lifting platform (61); and a steering gear seat (51) is slidably matched with the guide rails (62).

8. The manually adjustable position steering gear loading test system according to claim 7, characterized in that: The motor seat (22) is detachably connected to the loading test bench (1), the sensor support (27) is detachably connected to the loading test bench (1), the limiting member (25) is detachably connected to the torque sensor (24), and the limiting member (25) is detachably connected to the sensor support (27).

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