Four-channel steering engine automatic test equipment

Abstract

The utility model discloses a four-channel steering engine automatic test device, which relates to the technical field of steering engine automatic test equipment and comprises an equipment platform, a steering engine fixing seat is fixedly mounted in the middle of the top end of the equipment platform, a steering engine is fixedly mounted at the top of the steering engine fixing seat, and four rudder shafts are distributed on the outer circumference of the steering engine. The four rudder shafts correspond to one set of measuring mechanisms to form a measuring channel, each measuring mechanism comprises an angle measuring assembly and a torque measuring assembly, rudder shaft connecting pieces are fixedly installed outside the rudder shafts, an electric push cylinder is fixedly connected to the top of the equipment platform, and the telescopic end of the electric push cylinder is fixedly connected with a torsion bar. According to the utility model, through the cooperation of the angle measuring assembly and the torque measuring assembly, the characteristics of rotation angles, torques and the like of four rudder shafts can be simultaneously measured through four channels, the measurement is reliable and high in accuracy, the measurement process is simple and convenient to operate, and the efficiency is high.

Description

Technical Field

[0001] This utility model relates to the technical field of automatic servo motor testing equipment, and in particular to a four-channel automatic servo motor testing equipment. Background Technology

[0002] A servo is an actuator that controls the rotation of the aircraft's control surfaces in the flight control system. It is divided into electric servos, hydraulic servos, and electro-hydraulic servos. The servo shaft is a key component of the servo, used to connect the electric motor and the rudder, and to transmit the rotational motion of the electric motor to the rudder.

[0003] When a servo motor is operating, each servo shaft can output a certain angle and torque. The output angle and torque of the servo shaft must reach certain values ​​to meet requirements. The production process requires accurate measurement of the output angle and torque of each servo shaft. When testing four servo shafts evenly distributed on the outer circumference of the servo motor, the existing measurement method involves connecting a rod perpendicular to the servo shaft being tested, attaching a weight to the end of the rod, manually measuring the angle and torque output, and calculating the output torque from the weight. This manual measurement method has low accuracy, requires frequent changes of measuring fixtures, and has low measurement efficiency.

[0004] Therefore, it is necessary to propose a four-channel automatic servo motor testing device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a four-channel automatic servo motor testing device to solve the problems mentioned in the background art, such as low accuracy of manual measurement, frequent changes of measuring fixtures, and low measurement efficiency when measuring the output angle and torque of the servo shaft.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a four-channel servo motor automatic testing device, comprising a device platform, a servo motor mounting base fixedly installed at the center of the top of the device platform, a servo motor fixedly installed on the top of the servo motor mounting base, four servo shafts distributed around the outer circumference of the servo motor, each of the four servo shafts corresponding to a set of measuring mechanisms forming a measuring channel, the measuring mechanism including an angle measuring component and a torque measuring component, a servo shaft connector fixedly installed on the outside of the servo shaft, an electric push cylinder fixedly connected to the top of the device platform, and a torsion bar fixedly connected to the telescopic end of the electric push cylinder.

[0007] Preferably, the angle measuring assembly includes an encoder bracket, a spindle, bearings, a slotted connector, a centering shaft, and a torsion bar clamp. The bottom of the encoder bracket is fixedly installed to the top of the equipment platform. The spindle is mounted on the encoder bracket via a pair of bearings. The slotted connector is fixedly installed at the front end of the spindle. One end of the centering shaft is inserted into the center hole at the rear end of the spindle, and the other end of the centering shaft is fixedly connected to the torsion bar clamp. The spindle can rotate flexibly and slide axially.

[0008] An encoder is mounted on the side of the encoder bracket, and the encoder is installed coaxially with the spindle.

[0009] Preferably, the torque measurement assembly includes a torque sensor bracket, a movable support plate, a linear guide rail, a torsion bar fixing component, a sheath, and a torque sensor. The torque sensor bracket is mounted on the movable support plate, the movable support plate is fixed on the linear guide rail slider, and the linear guide rail is mounted on the equipment platform. The torque sensor is mounted on the torque sensor bracket, and the torsion bar fixing component is fixed to the rear end of the torque sensor. The sheath is sleeved on the rear end of the torsion bar.

[0010] Preferably, the torsion bar is a slender elastic metal rod with a square cross-section. The torsion bar is coaxially mounted with the rudder shaft, its front end is clamped by a torsion bar clamp, and its rear end is clamped by a torsion bar fixing member.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. By combining the angle measurement component and the torque measurement component, the rotation angle, torque and other characteristics of four steering shafts can be measured simultaneously through four channels. The measurement is reliable and accurate, and the operation is simple and efficient.

[0013] 2. By setting up a servo mounting bracket, the servo mounting bracket can be replaced when testing servos of the same type and within a certain size range, thereby achieving the purpose of fixing the servo and facilitating the testing of servos of the same type and within a certain size range, thus improving the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the automatic servo motor testing equipment of this utility model.

[0015] Figure 2 This is a schematic diagram of the angle measuring component in this utility model.

[0016] Figure 3 This is a schematic diagram of the torque measuring component in this utility model.

[0017] In the diagram: 1. Equipment platform; 2. Angle measurement assembly; 2.1. Encoder bracket; 2.2. Mandrel; 2.3. Bearing; 2.4. One-piece connecting sleeve; 2.5. Centering shaft; 2.6. Torque bar clamp; 3. Encoder; 4. Torque measurement assembly; 4.1. Torque sensor bracket; 4.2. Moving tray; 4.3. Linear guide rail; 4.4. Torque bar fixing component; 4.5. Protective sleeve; 5. Torque sensor; 6. Torque bar; 7. Electric push cylinder; 8. Rudder shaft connector; 9. Servo mounting base; 10. Servo. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] This utility model provides, for example Figures 1-3 The four-channel automatic servo motor testing equipment shown includes a platform 1, a servo motor mounting base 9 fixedly installed at the center of the top of the platform 1, a servo motor 10 fixedly installed on the top of the mounting base 9, and four servo shafts distributed around the outer circumference of the servo motor 10. Each of the four servo shafts corresponds to a set of measuring mechanisms forming a measuring channel. The measuring mechanisms include an angle measuring component 2 and a torque measuring component 4. A servo shaft connector 8 is fixedly installed on the outside of the servo shaft. An electric push cylinder 7 is fixedly connected to the top of the platform 1, and a torsion bar 6 is fixedly connected to the telescopic end of the electric push cylinder 7. The angle measuring component 2 and the torque measuring component 4 can be used to simultaneously measure the rotation angle, torque, and other characteristics of the four servo shafts through four channels. The measurement is reliable, accurate, simple to operate, and highly efficient.

[0020] Additionally, the angle measurement assembly 2 includes an encoder bracket 2.1, a spindle 2.2, a bearing 2.3, a slotted connector 2.4, a centering shaft 2.5, and a torsion bar clamp 2.6. The bottom of the encoder bracket 2.1 is fixedly mounted to the top of the equipment platform 1. The spindle 2.2 is mounted on the encoder bracket 2.1 via a pair of bearings 2.3. The slotted connector 2.4 is fixedly mounted to the front end of the spindle 2.2. One end of the centering shaft 2.5 is inserted into the center hole at the rear end of the spindle 2.2, and the other end of the centering shaft 2.5 is fixedly connected to the torsion bar clamp 2.6. The spindle 2.2 can rotate flexibly and slide axially. An encoder 3 is mounted on the side of the encoder bracket 2.1, and the encoder 3 is installed coaxially with the spindle 2.2. The encoder 3 can measure the rotation angle of the rudder shaft.

[0021] Finally, the torque measurement assembly 4 includes a torque sensor bracket 4.1, a movable support plate 4.2, a linear guide rail 4.3, a torsion bar fixing component 4.4, a protective sleeve 4.5, and a torque sensor 5. The torque sensor bracket 4.1 is mounted on the movable support plate 4.2, which is fixed to the slider of the linear guide rail 4.3. The linear guide rail 4.3 is mounted on the equipment platform 1. The torque sensor 5 is mounted on the torque sensor bracket 4.1. First, the rudder shaft connector 8 is mounted on the rudder shaft of the rudder motor 10 to be tested, and then the rudder motor 10 is mounted and fixed on the rudder motor mounting base 9. In the unloaded state, the push rod of the electric push cylinder 7 is in the extended position. When the electric push cylinder 7 is started, the push rod retracts, and the torsion bar 6 moves towards the rudder shaft until the torsion bar clamp 2.6 is in contact with the spindle 2.2, and the slotted connecting sleeve 2.4 is also in contact with the rudder shaft connector 8. When servo motor 10 is activated, the servo shaft rotates under the load of torque bar 6. The rotation angle of the servo shaft is measured by encoder 3, and the torque load on the servo shaft is measured by torque sensor 5. All test signals during the operation of servo motor 10 are transmitted to the computer via communication cable. After processing by the test software, detailed test data and charts of servo motor 10 can be obtained. When it is necessary to test the servo shaft rotation characteristics of servo motor 10 under no-load conditions, the electric push cylinder 7 extends its push rod to disengage the torque bar clamp 2.6 from the spindle 2.2 for automatic unloading, allowing the servo shaft of servo motor 10 to rotate under no-load conditions. The four-channel test device can simultaneously test the state characteristics of each servo shaft of servo motor 10, or test the state characteristics of each servo shaft individually. After all tests are completed, the electric push cylinder 7 returns to the initial position to unload, and the spindle retracts, disengaging from the servo shaft connector 8 via the slotted sleeve 2.4. The torsion bar fixing component 4.4 is fixed to the rear end of the torque sensor 5; the sheath 4.5 is sleeved on the rear end of the torsion bar 6. The torsion bar 6 is a slender elastic metal rod with a square cross-section. The torsion bar 6 is coaxially installed with the rudder shaft, and its front end is clamped by the torsion bar clamp 2.6, while the rear end is clamped by the torsion bar fixing component 4.4. When the rudder shaft connector 8 and the slotted connector 2.4, the spindle 2.2 and the torsion bar clamp 2.6 are all connected, the rudder shaft rotates at a certain angle, causing the front end of the torsion bar 6 to rotate together, while the rear end of the torsion bar 6 remains stationary. In this way, the load is applied to the rudder shaft through the torsion bar 6.

[0022] Working Principle: First, install the rudder shaft connector 8 onto the rudder shaft of the servo motor 10 under test, and then fix the servo motor 10 onto the servo motor mounting base 9. In the unloaded state, the push rod of the electric push cylinder 7 is in the extended position. When the electric push cylinder 7 is activated, the push rod retracts, and the torsion bar 6 moves towards the rudder shaft until the torsion bar clamp 2.6 and the spindle 2.2 are in contact. The slotted connector 2.4 is also in contact with the rudder shaft connector 8. The servo motor 10 starts, and the rudder shaft rotates under the loaded torsion bar 6. The rotation angle of the rudder shaft is measured by the encoder 3, and the torque load on the rudder shaft is measured by the torque sensor 5. All test signals during the servo motor 10's operation are transmitted to the computer via a communication cable. After processing by the test software, detailed test data and charts of the servo motor 10 can be obtained. When it is necessary to test the rudder shaft rotation characteristics of the servo motor 10 under no-load conditions, the push rod of the electric push cylinder 7 extends, causing the torsion bar clamp 2.6 to disengage from the spindle 2.2 for automatic unloading, allowing the rudder shaft of the servo motor 10 to rotate under no-load conditions. The four-channel testing device can simultaneously test the state characteristics of each servo shaft of the servo motor 10, or test the state characteristics of each servo shaft individually. After all tests are completed, the electric push cylinder 7 returns to the initial position to unload, and the spindle retracts, disengaging the slotted connecting sleeve 2.4 from the servo shaft connecting piece 8.

Claims

1. Four-channel steering gear automatic test equipment, comprising an equipment platform (1), characterized in that: The middle part of the top end of the device platform (1) is fixedly installed with a rudder fixing seat (9), the top of the rudder fixing seat (9) is fixedly installed with a rudder (10), the outer circumference of the rudder (10) is distributed with four rudder shafts, each of the four rudder shafts corresponds to a group of measuring mechanisms as a measuring channel, the measuring mechanism includes an angle measuring assembly (2) and a torque measuring assembly (4), the outer part of the rudder shaft is fixedly installed with a rudder shaft connecting piece (8), the top of the device platform (1) is fixedly connected with an electric push cylinder (7), the telescopic end of the electric push cylinder (7) is fixedly connected with a torque rod (6).

2. The four-channel servo motor automated test equipment of claim 1, wherein: The angle measuring assembly (2) includes an encoder support (2.1), a mandrel (2.2), a bearing (2.3), a one-character connecting sleeve (2.4), a centering shaft (2.5) and a torque rod clamp (2.6), the bottom of the encoder support (2.1) is fixedly installed with the top of the device platform (1), the mandrel (2.2) is installed on the encoder support (2.1) through a pair of bearings (2.3), the one-character connecting sleeve (2.4) is fixedly installed at the front end of the mandrel (2.2), one end of the centering shaft (2.5) is inserted into the center hole at the rear end of the mandrel (2.2), and the other end of the centering shaft (2.5) is fixedly connected with the torque rod clamp (2.6), the mandrel (2.2) rotates and slides in the axial direction; An encoder (3) is installed on the side surface of the encoder support (2.1), and the encoder (3) is installed at the coaxial position of the mandrel (2.2).

3. The four-channel servo motor automated test equipment of claim 1, wherein: The torque measuring assembly (4) includes a torque sensor support (4.1), a moving pallet (4.2), a linear guide rail (4.3), a torque rod fixing piece (4.4), a sheath (4.5) and a torque sensor (5), the torque sensor support (4.1) is installed on the moving pallet (4.2), the moving pallet (4.2) is fixed on the sliding block of the linear guide rail (4.3), and the linear guide rail (4.3) is installed on the device platform (1); the torque sensor (5) is installed on the torque sensor support (4.1), the torque rod fixing piece (4.4) is fixed at the rear end of the torque sensor (5); the sheath (4.5) is sleeved at the rear end of the torque rod (6).

4. The four-channel servo motor automated test equipment of claim 3, wherein: The torque rod (6) is a square-section elongated elastic metal rod, and the torque rod (6) is coaxially installed with the rudder shaft, the front end of the torque rod (6) is clamped by the torque rod clamp (2.6), and the rear end is clamped by the torque rod fixing piece (4.4).

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