阅读说明：本技术 一种在复杂应用环境下自动测试电磁制动器的吸合力装置 (Automatic test electromagnetic brake's actuation device under complicated application environment ) 是由 侯占林 黄玉平 王春明 肖翀 崔佩娟 于 2019-07-18 设计创作，主要内容包括：本发明公开了一种在复杂应用环境下自动测试电磁制动器的吸合力装置,基座为U型结构,电磁制动器定子固定于基座的一侧,电磁制动器动子通过制动器连接轴与拉压力传感器连接,拉压力传感器通过压力传感器连接轴固定于滑动板一侧,滑动板另一侧安装有前支耳支座,后支耳支座安装于基座的另一侧,机电作动器通过作动器连接螺栓固定于前支耳支座和后支耳支座之间。导轨和光栅尺安装在基座底面上,滑动板垂直安装于导轨上,滑动板能够沿导轨前后滑动,光栅尺用于测量滑动板在导轨上的位移。本发明能够自动测试电磁制动器的吸合力,相较于手动操作的测试装置,明显拓宽了测试环境。(the invention discloses a suction force device for automatically testing an electromagnetic brake in a complex application environment, wherein a base is of a U-shaped structure, a stator of the electromagnetic brake is fixed on one side of the base, a rotor of the electromagnetic brake is connected with a tension pressure sensor through a brake connecting shaft, the tension pressure sensor is fixed on one side of a sliding plate through a pressure sensor connecting shaft, a front lug support is installed on the other side of the sliding plate, a rear lug support is installed on the other side of the base, and an electromechanical actuator is fixed between the front lug support and the rear lug support through an actuator connecting bolt. The guide rail and the grating ruler are installed on the bottom surface of the base, the sliding plate is vertically installed on the guide rail, the sliding plate can slide back and forth along the guide rail, and the grating ruler is used for measuring the displacement of the sliding plate on the guide rail. The invention can automatically test the suction force of the electromagnetic brake, and compared with a manually operated test device, the invention obviously widens the test environment.)

1. The suction device for automatically testing the electromagnetic brake in a complex application environment is characterized by comprising a base (1), a brake connecting shaft (4), a tension pressure sensor (5), a tension pressure sensor connecting shaft (6), a sliding plate (7), a front support lug support saddle (8), an electromechanical actuator, a rear support lug support saddle (15), a guide rail (16) and a grating ruler (17);

The base (1) is of a U-shaped structure, the electromagnetic brake stator (2) is fixed at a '|' structure position on one side of the base (1), the electromagnetic brake rotor (3) is connected with the tension and pressure sensor (5) through the brake connecting shaft (4), the tension and pressure sensor (5) is fixed on one side of the sliding plate (7) through the pressure sensor connecting shaft (6), the other side of the sliding plate (7) is provided with a front lug support (8), the rear lug support (15) is arranged at the '|' structure position on the other side of the base (1), and the electromechanical actuator is fixed between the front lug support (8) and the rear lug support (15) through an actuator connecting bolt;

The guide rail (16) and the grating ruler (17) are installed on the bottom surface of the base (1), the sliding plate (7) is vertically installed on the guide rail (16), the sliding plate (7) can slide back and forth along the guide rail (16), and the grating ruler (17) is used for measuring the displacement of the sliding plate (7) on the guide rail (16).

2. the attraction force device for automatically testing the electromagnetic brake in the complex application environment according to claim 1, wherein the electromechanical actuator comprises a front lug (9), a ball screw pair (10), an actuating cylinder (11), a motor (12) and a rear lug (13);

One end of a front support lug (9) is fixed on a front support lug support (8), the other end of the front support lug (9) is fixed on a ball screw pair (10), the ball screw pair (10) is connected with a actuating cylinder (11), the actuating cylinder (11) converts the rotation of the ball screw pair (10) into linear motion, a motor (12) moves to drive the ball screw pair (10) to reciprocate, and the motor (12) is fixed on a rear support lug (13).

3. The attraction force device for automatically testing the electromagnetic brake in the complex application environment according to claim 1, wherein the electromechanical actuator comprises a front lug (9), a ball screw pair (10), an actuating cylinder (11), a differential, two mutually redundant motors (12) and a rear lug (13); one end of a front support lug (9) is fixed on a front support lug support (8), the other end of the front support lug (9) is fixed on a screw nut of a ball screw pair (10), the ball screw pair (10) is connected with an actuating cylinder (11), and the actuating cylinder (11) converts the rotation of the ball screw pair (10) into linear motion; output shafts of the two redundant motors are respectively connected with two input shafts of a differential in a one-to-one correspondence mode, lead screws of the ball screw pair (10) are connected with output shafts of the differential, and the differential is fixed on the rear support lug (13).

4. the attraction device for automatically testing the electromagnetic brake in the complex application environment according to claim 1, wherein the guide rail (16) comprises a guide rail stator and a guide rail rotor, the guide rail stator is fixed on the bottom surface of the base (1), the guide rail rotor moves along a slide way of the guide rail stator through a ball, and the sliding plate (7) is installed on the guide rail rotor.

5. the suction device for automatically testing the electromagnetic brake in the complicated application environment as claimed in claim 4, wherein the grating ruler (17) comprises a grating ruler stator and a grating ruler rotor, the grating ruler stator is fixed on the bottom surface of the base (1), the grating ruler rotor is connected with the guide rail rotor, and the guide rail rotor moves to drive the grating ruler rotor to move.

6. the attraction device for automatically testing the electromagnetic brake in the complex application environment as claimed in claim 5, wherein the parallelism of the guide rail, the grating ruler, the electromechanical actuator and the pull pressure sensor is not more than 0.1 mm.

7. the attraction device for automatically testing the electromagnetic brake in the complex application environment as claimed in claim 1, wherein the coaxiality of the electromechanical actuator, the front lug support, the rear lug support and the pull pressure sensor is not more than Φ 0.1 mm.

8. The suction device for automatically testing the electromagnetic brake in the complex application environment as claimed in claim 1, wherein the electromagnetic brake rotor, the electromagnetic brake stator and the brake connecting shaft (4) are coaxial, and the coaxiality is not more than Φ 0.06 mm.

9. The attraction device for automatically testing the electromagnetic brake in the complex application environment as claimed in claim 1, wherein the perpendicularity of the brake connecting shaft (4) and the sliding plate (7) is less than 0.06 mm.

10. the device for automatically testing the suction force of the electromagnetic brake in the complex application environment according to claim 1, wherein the method for automatically testing the suction force of the electromagnetic brake by the suction force device is as follows:

(1) When the electromagnetic brake is powered off and is switched on, the motor in the electromechanical actuator is powered on to control the electromechanical actuator to retract;

(2) The electromechanical actuator retracts to drive the sliding plate (7) to move towards the electromechanical actuator;

(3) The tension of the electromechanical actuator on the sliding plate (7) is transmitted to the electromagnetic brake rotor (3) in real time;

(4) The pulling pressure sensor (5) measures the pulling force of the electromechanical actuator on the electromagnetic brake rotor (3) in real time until the pulling force of the electromechanical actuator on the electromagnetic brake rotor (3) disappears;

(5) The maximum pulling force measured by the pulling pressure sensor (5) is the sucking force of the electromagnetic brake.

Technical Field

The invention relates to a device for automatically testing the suction force of an electromagnetic brake in a complex application environment, belongs to the electromechanical servo technology, and is suitable for testing the brake of a redundancy electromechanical actuator.

Background

The electromechanical actuator has the outstanding advantages and is rapidly expanded in application, so that new requirements are put on the electromechanical actuator, the performance is more reliable, power redundancy is required to be realized for ensuring the safe and reliable performance, the redundant power braking is more important, and the reliability of the braking force is more important.

The motor of the electromechanical actuator is power, the redundancy of the power can ensure that the performance of the actuator is safer and more reliable, and compared with a differential redundancy scheme, the motor brake in the scheme is a key technology, and how to test the reliability of the motor brake is a technical problem to be solved urgently in the field.

the existing testing device is generally operated manually, and the manual operation results in limited testing environments in which the existing testing device can be used. Because of the limitation of the application environment of the electromechanical actuator, the electromagnetic brake is limited unknown, so that the braking torque of the electromagnetic brake is reduced, and the performance of the whole electromechanical actuator is reduced inevitably.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a device for automatically testing the suction force of an electromagnetic brake in a complex application environment.

The purpose of the invention is realized by the following technical scheme:

A suction device for automatically testing an electromagnetic brake in a complex application environment comprises a base, a brake connecting shaft, a tension pressure sensor connecting shaft, a sliding plate, a front lug support, an electromechanical actuator, a rear lug support, a guide rail and a grating ruler;

The electromagnetic brake comprises a base, an electromagnetic brake stator, a tension and pressure sensor, a front lug support, a rear lug support, an electromechanical actuator and a brake connecting bolt, wherein the base is of a U-shaped structure, the electromagnetic brake stator is fixed at an I-shaped structure at one side of the base, the electromagnetic brake rotor is connected with the tension and pressure sensor through a brake connecting shaft, the tension and pressure sensor is fixed at one side of a sliding plate through the pressure sensor connecting shaft, the front lug support is installed at the other side of the sliding plate, the rear lug support is installed at the I-;

the guide rail and the grating ruler are installed on the bottom surface of the base, the sliding plate is vertically installed on the guide rail, the sliding plate can slide back and forth along the guide rail, and the grating ruler is used for measuring the displacement of the sliding plate on the guide rail.

The electromechanical actuator comprises a front lug, a ball screw pair, an actuating cylinder, a motor and a rear lug;

One end of the front support lug is fixed on the front support lug support, the other end of the front support lug is fixed on the ball screw pair, the ball screw pair is connected with the actuating cylinder, the actuating cylinder converts the rotation of the ball screw pair into linear motion, the motor drives the ball screw pair to reciprocate, and the motor is fixed on the rear support lug.

the electromechanical actuator comprises a front lug, a ball screw pair, an actuating cylinder, a differential, two mutually redundant motors and a rear lug; one end of the front support lug is fixed on the front support lug support, the other end of the front support lug is fixed on a screw nut of the ball screw pair, the ball screw pair is connected with an actuating cylinder, and the actuating cylinder converts the rotation of the ball screw pair into linear motion; output shafts of the two redundant motors are respectively connected with two input shafts of the differential in a one-to-one correspondence mode, lead screws of the ball screw pairs are connected with output shafts of the differential, and the differential is fixed on the rear support lug.

the guide rail comprises a guide rail stator and a guide rail rotor, the guide rail stator is fixed on the bottom surface of the base, the guide rail rotor moves along a slide way of the guide rail stator through balls, and the sliding plate is installed on the guide rail rotor.

The grating ruler comprises a grating ruler stator and a grating ruler rotor, the grating ruler stator is fixed on the bottom surface of the base, the grating ruler rotor is connected with the guide rail rotor, and the guide rail rotor moves to drive the grating ruler rotor to move.

the parallelism of the guide rail, the grating ruler, the electromechanical actuator and the tension and pressure sensor is not more than 0.1 mm.

The coaxiality of the electromechanical actuator, the front support lug support saddle, the rear support lug support saddle and the pull pressure sensor is not more than phi 0.1 mm.

the electromagnetic brake rotor, the electromagnetic brake stator and the brake connecting shaft are coaxial, and the coaxiality is not more than phi 0.06 mm.

the perpendicularity between the brake connecting shaft and the sliding plate is less than 0.06 mm.

The method for automatically testing the suction force of the electromagnetic brake by the suction force device comprises the following steps:

(1) When the electromagnetic brake is powered off and is switched on, the motor in the electromechanical actuator is powered on to control the electromechanical actuator to retract;

(2) The electromechanical actuator retracts to drive the sliding plate to move towards the electromechanical actuator;

(3) The tension of the electromechanical actuator on the sliding plate is transmitted to an electromagnetic brake rotor in real time;

(4) The pulling pressure sensor measures the pulling force of the electromechanical actuator on the electromagnetic brake rotor in real time until the pulling force of the electromechanical actuator on the electromagnetic brake rotor disappears;

(5) the maximum pulling force measured by the pulling pressure sensor is the suction force of the electromagnetic brake.

Compared with the prior art, the invention has the following advantages:

(1) The invention can automatically test the suction force of the electromagnetic brake when the electromagnetic brake is powered off and sucked, compared with a manually operated test device, the invention obviously widens the test environment and lays a foundation for testing the electromagnetic brake in various complex environments.

(2) the test of the electromagnetic brake is a parallel test, and the test result is closer to the reality.

(3) The electromechanical actuator is realized by adopting the roller screw, the reducer and the redundant motor, has the characteristics of long stroke (0-300 mm) and stepless expansion, and the specific design of the guide rail and the grating ruler ensures accurate measurement and small friction coefficient in the movement process.

(4) The brake connecting shaft is fixed on the sliding plate, the electromagnetic brake rotor is fixed on the brake connecting shaft, the electromagnetic brake stator is fixed on the base, the electromagnetic brake rotor, the electromagnetic brake stator and the brake connecting shaft are coaxial, and the coaxiality is not more than phi 0.06 mm. The perpendicularity between the brake connecting shaft and the sliding plate is not more than 0.06mm, the assembling accuracy is ensured, and the suction force testing precision of the electromagnetic brake is improved.

Drawings

FIG. 1 is a schematic of the present invention;

FIG. 2 is a schematic view of the present invention placed in a complex space environment;

FIG. 3 is a schematic view of the present invention installed in a vibration impact test stand.

Detailed Description

The invention provides a suction device for automatically testing an electromagnetic brake in a complex application environment, which comprises a base 1, a brake connecting shaft 4, a tension pressure sensor 5, a tension pressure sensor connecting shaft 6, a sliding plate 7, a front support lug support 8, an electromechanical actuator, a rear support lug support 15, a guide rail 16 and a grating ruler 17.

Base 1 is U type structure, electromagnetic brake stator 2 is fixed in one side "|" type structure department of base 1, electromagnetic brake active cell 3 is connected with drawing pressure sensor 5 through stopper connecting axle 4, it is fixed in sliding plate 7 one side through pressure sensor connecting axle 6 to draw pressure sensor 5, preceding journal stirrup support 8 is installed to sliding plate 7 opposite side, rear lug support 15 is installed in opposite side "|" type structure department of base 1, electromechanical actuator passes through actuator connecting bolt to be fixed in between preceding journal stirrup support 8 and the rear lug support 15.

The electromechanical actuator comprises a front lug 9, a ball screw pair 10, an actuating cylinder 11, a motor 12 and a rear lug 13. In order to improve the reliability, the motor is set to be a dual-redundancy motor. Therefore, a differential is also included in the electromechanical actuator.

Specifically, one end of a front lug 9 is fixed on a front lug support 8, the other end of the front lug 9 is fixed on a screw nut of a ball screw pair 10, the ball screw pair 10 is connected with an actuating cylinder 11, and the actuating cylinder 11 converts the rotation of the ball screw pair 10 into linear motion; the output shafts of the two redundant motors are respectively connected with two input shafts of a differential in a one-to-one correspondence mode, a lead screw of the ball screw pair 10 is connected with the output shaft of the differential, and the differential is fixed on the rear support lug 13. The rear lug 13 is fixed to a rear lug support 15 by an actuator connecting bolt 14. The ball screw pair 10 is driven to reciprocate by the motion of the motor 12.

The guide rail 16 and the grating ruler 17 are installed on the bottom surface of the base 1, the sliding plate 7 is vertically installed on the guide rail 16, the sliding plate 7 can slide back and forth along the guide rail 16, and the grating ruler 17 is used for measuring the displacement of the sliding plate 7 on the guide rail 16.

specifically, the guide rail 16 includes a guide rail stator fixed on the bottom surface of the base 1 and a guide rail mover moving along a slide of the guide rail stator by balls, and the sliding plate 7 is mounted on the guide rail mover. The grating ruler 17 comprises a grating ruler stator and a grating ruler rotor, the grating ruler stator is fixed on the bottom surface of the base 1, the grating ruler rotor is connected with the guide rail rotor, and the guide rail rotor moves to drive the grating ruler rotor to move.

The parallelism of the guide rail, the grating ruler, the electromechanical actuator and the tension and pressure sensor is not more than 0.1 mm. The coaxiality of the electromechanical actuator, the front support lug support saddle, the rear support lug support saddle and the pull pressure sensor is not more than phi 0.1 mm. The rotor of the electromagnetic brake, the stator of the electromagnetic brake and the brake connecting shaft 4 are coaxial, and the coaxiality is not more than phi 0.06 mm. The perpendicularity between the brake connecting shaft 4 and the sliding plate 7 is less than 0.06 mm.

the method for automatically testing the suction force of the electromagnetic brake by the suction force device comprises the following steps:

When the electromagnetic brake is powered off and is switched on, the motor 12 is powered on, the ball screw pair 10 is driven to retract by controlling the motor to rotate, and meanwhile, the ball screw pair 10 drives the sliding plate 7 to move towards the direction of the electromechanical actuator;

The tension of the ball screw pair 10 on the sliding plate 7 is transmitted to the electromagnetic brake rotor 3 in real time, and the tension and pressure sensor 5 measures the tension of the ball screw pair 10 on the electromagnetic brake rotor 3 in real time until the tension of the ball screw pair 10 on the electromagnetic brake rotor 3 disappears;

the maximum pulling force measured by the pulling pressure sensor 5 is the suction force of the electromagnetic brake.

In the invention, the base is made of a steel material with good welding performance, the thickness is more than 15mm, the front lug and the rear lug are made of stainless steel, the tensile strength is high, and the vibration and impact resistance of the suction device is ensured. Meanwhile, the meshing return difference of the input side of the differential is increased to 12-20 minutes in the design process, so that the jamming fault is ensured to occur in the high-temperature and low-temperature environment. The method realizes accurate test of the absorption force of the electromagnetic brake in complex application environments (humid and hot environments, high and low temperature environmental conditions, vibration impact and other environments), and increases the certainty of the complex application environments compared with the traditional test method. FIG. 2 is a schematic diagram of the present invention placed in a complex space environment. FIG. 3 is a schematic view of the present invention installed in a vibration impact test stand.

the invention provides a suction force device for automatically testing an electromagnetic brake, which can automatically test the suction force of the electromagnetic brake, compared with a manually operated testing device, the suction force device for automatically testing the electromagnetic brake obviously widens the testing environment, can test the suction force in a normal temperature state and a high and low temperature environment, can test the suction force in a damp and hot environment, can test the suction force by vibration impact, and the like, has smaller volume and weight compared with the traditional testing electromagnetic brake, can meet the application test design requirement of the electromagnetic brake in a complex environment, is suitable for the brake testing field of a redundancy electromechanical actuator, and has wide application prospect.

The above description is only for the best mode of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.

those skilled in the art will appreciate that the invention may be practiced without these specific details.