High-precision thermal vacuum experiment angle testing device

Abstract

The utility model relates to the technical field of thermal vacuum experiments, in particular to a high-precision thermal vacuum experiment angle testing device which comprises a base, a piece to be tested, a thermal vacuum tank, an output shaft and a magnetic suspension control mechanism, the thermal vacuum tank is installed on the base, the output shaft is connected to the middle of the thermal vacuum tank in a penetrating mode, and one end of the output shaft is connected with the piece to be tested. One end of the base is connected with the magnetic suspension control mechanism, the other end of the base is connected with the magnetic suspension control mechanism, a tested piece supporting table is arranged on one side of the bottom end of the base, the thermal vacuum tank comprises a high-strength heat sink, a flange plate, an annular encoder, an encoder supporting table, a magnetic fluid sealing piece and an outer side base, and the high-strength heat sink is installed on the right side of the tested piece supporting table. The friction force is greatly reduced while the support of the output shaft is ensured, and the information collection precision of the test is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a high-precision hot vacuum experiment angle testing device. BACKGROUND

[0002] The hot vacuum experiment is a ground test method of a space simulator in a space environment, which verifies the performance and function of a spacecraft and each component thereof in an extreme environment by simulating the vacuum state, cold black environment and solar radiation in space and the like.

[0003] In this process, the test equipment needs to be driven or loaded to simulate the driving and load device received by the mechanism, and the torque, rotation and rotation speed and the like of the real-time high-precision measuring equipment also need to be measured.

[0004] In the hot vacuum experiment for torsional loading of the measured part, the reliability of the sensor and power equipment arranged in the hot vacuum tank is reduced due to the internal environment, the service life is shortened, and the test process cannot be quickly adjusted, so the control part of the test equipment can only be installed outside the vacuum tank.

[0005] The loading and measuring device outside the tank is fixed with the output shaft of the motor to be measured in the tank through a transmission shaft to test and analyze the characteristics of the motor in the hot vacuum environment, and if the no-load characteristics of the motor need to be measured, the motor output shaft needs to be disconnected from the transmission shaft during the test, which is very difficult in the hot vacuum environment.

[0006] Since the sensor is arranged outside the vacuum tank, the measured part in the hot vacuum simulation environment in the tank body is indirectly measured, so the best connection mode is to use a magnetic fluid sealing transmission device for connection, the magnetic fluid sealing transmission device has small friction energy loss, but cannot provide transmission support, and if hard support is used, the friction will increase, which will greatly affect the measurement.

[0007] The transmission mode between the inside and outside of the tank is linked and controlled through the magnetic fluid sealing element, when the measured part is fixed in the tank and deforms in the hot vacuum environment during the test, the measured part and the magnetic fluid sealing shaft are connected, the shaft center is changed, and the test result is recorded after deflection. Utility model content

[0008] Therefore, the utility model provides a high-precision hot vacuum experiment angle testing device, which can connect the magnetic fluid sealing transmission device and provide support force without friction, and can perform high-precision testing on the measured part in the hot vacuum experiment, and the utility model realizes the above-mentioned purposes through the following technical solutions:

[0009] The utility model provides a high accuracy heat vacuum experiment angle testing device, include: base, measured piece, heat vacuum jar, output shaft, magnetic suspension control mechanism, the heat vacuum jar is installed on the base, the heat vacuum jar middle through connection has output shaft, output shaft one end connects measured piece, the other end connects magnetic suspension control mechanism, the bottom end one side of base is equipped with measured piece support platform, the heat vacuum jar includes: high strength heat sink, flange, ring encoder, encoder support platform, magnetic fluid sealing element, outside base, the right side of measured piece support platform is equipped with high strength heat sink, the right side of high strength heat sink is equipped with encoder support platform, the flange is installed on encoder support platform, the ring encoder is installed in the flange, the outer edge of heat vacuum jar through hole is equipped with magnetic fluid sealing element, the outside of heat vacuum jar is equipped with outside base, the upper end of outside base is equipped with magnetic suspension control mechanism, the high strength heat sink has the through -hole coaxial with the through -hole of heat vacuum jar in the middle, and the output shaft is installed in two through -holes.

[0010] Preferably, the magnetic suspension control mechanism comprises: a magnetic suspension generator, a top mounting table, a repulsion control table and an auxiliary ring encoder, the magnetic suspension generator is installed at the lower end of the magnetic suspension control mechanism, the top mounting table is installed at the upper end of the magnetic suspension generator, the auxiliary ring encoder is installed on the top mounting table, and the repulsion control table is installed at the front end of the auxiliary ring encoder.

[0011] Preferably, one end of the output shaft is connected with the measured piece and installed on the measured piece support platform, and the other end is installed at the center of the top mounting table.

[0012] Preferably, the output shaft is installed with a heat insulation coupling and located at the left side of the high strength heat sink.

[0013] The utility model discloses beneficial effects:

[0014] 1. The utility model discloses a magnetic suspension control mechanism, guarantees the support of output shaft, greatly reduces the friction force, improves the information collection precision of test.

[0015] 2. The high strength heat sink is matched with the heat insulation coupling, and the influence of the heat vacuum jar environment on the magnetic suspension mechanism is reduced to the maximum extent.

[0016] 3. A plurality of ring encoders are matched with the magnetic suspension control mechanism to perform high-precision testing on the output shaft. DRAWINGS

[0017] Figure 1 It is the main structure schematic diagram of the utility model.

[0018] Figure 2 It is the main structure schematic diagram of the utility model Figure Two .

[0019] Figure 3 It is the main structure schematic diagram of the utility modelFigure Three .

[0020] BRIEF DESCRIPTION OF DRAWINGS

[0021] 1, base; 101, measured piece support table; 2, measured piece; 3, hot vacuum tank; 301, high-strength heat sink; 302, flange plate; 303, ring encoder; 304, encoder support table; 305, magnetic fluid seal; 306, outer base; 4, output shaft; 401, heat insulation coupling; 5, magnetic levitation control mechanism; 501, magnetic levitation generator; 502, top mounting table; 503, repulsion control table; 504, auxiliary ring encoder. DETAILED DESCRIPTION

[0022] The preferred embodiments of the utility model will be described in detail by referring to the drawings, so that these embodiments are easy to be realized for those skilled in the art to which the utility model belongs, however, the utility model can be realized in various different forms, therefore, the utility model is not limited to the embodiments described below, in addition, in order to more clearly describe the utility model, the components not connected with the utility model will be omitted from the drawings.

[0023] As shown in Figures 1-3 A high-precision hot vacuum experiment angle testing device, comprising: a base 1, a measured piece 2, a hot vacuum tank 3, an output shaft 4, a magnetic levitation control mechanism 5, the hot vacuum tank 3 is installed on the base 1, the output shaft 4 is connected through the middle of the hot vacuum tank 3, one end of the output shaft 4 is connected with the measured piece 2, and the other end is connected with the magnetic levitation control mechanism 5.

[0024] As shown in Figures 1-3 The bottom end of the base 1 is provided with a measured piece support table 101 for supporting the measured piece 2.

[0025] The hot vacuum tank 3 comprises: a high-strength heat sink 301, a flange plate 302, a ring encoder 303, an encoder support table 304, a magnetic fluid seal 305 and an outer base 306.

[0026] In the hot vacuum tank 3, the base 1 is installed, the high-strength heat sink 301 is installed on the right side of the measured piece support table 101, the encoder support table 304 is installed on the right side of the high-strength heat sink 301, the flange plate 302 is installed on the encoder support table 304, the ring encoder 303 is installed in the flange plate 302, the magnetic fluid seal 305 is installed on the outer edge of the through shaft hole of the hot vacuum tank 3, the magnetic fluid seal 305 is responsible for sealing the shaft hole and the transmission output shaft 4, the outer base 306 is installed on the outer side of the hot vacuum tank 3, and the magnetic levitation control mechanism 5 is installed on the upper end of the outer base 306.

[0027] The magnetic suspension control mechanism 5 comprises a magnetic suspension generator 501, a top mounting table 502, repulsion control tables 503, and auxiliary ring encoders 504.

[0028] The magnetic suspension generator 501 is mounted at the lower end of the magnetic suspension control mechanism 5, and the top mounting table 502 is mounted at the upper end of the magnetic suspension generator 501.

[0029] The output shaft 4 is mounted in the two through holes, and the other end of the output shaft 4 is connected to the measured member 2 mounted on the measured member support table 101.

[0030] The utility model discloses a working principle:

[0031] The magnetic suspension generator 501 is started, and the other end of the output shaft 4 is installed on the measured member 2 after passing through the magnetic fluid sealing piece 305.

[0032] After all components are installed, the magnetic fluid sealing piece 305 connected with the output shaft 4 is only responsible for sealing, and the support of the magnetic suspension generator 501 avoids the influence of the ordinary support device on the torque measurement, prevents the bending of the output shaft 4, and improves the test precision.

[0033] The inner part of the hot vacuum tank 3 is divided into a hot vacuum layer and a near-constant-temperature vacuum layer through the cooperation of the heat insulation coupling 401 and the high-strength heat sink 301.

[0034] And the torque change of the measured piece 2 will be transmitted to the output shaft 4 through the influence on the output shaft 4, so that the relative position of the output shaft 4 to the measured piece 2 is deformed, so that the repulsion control console 503 needs to exert greater restoring force, and therefore part of the data is sent to the loading device installed at the outermost end of the measured piece 2, so that the workers can compare the information with the external installed torque sensor.

Claims

1. A high-precision thermal vacuum experiment angle testing device, comprising: The utility model provides a kind of magnetic levitation control mechanism, including base (1), measured piece (2), hot vacuum tank (3), output shaft (4), magnetic levitation control mechanism (5);Its characterized in that: base (1) is installed hot vacuum tank (3), and hot vacuum tank (3) is connected with output shaft (4) in middle and penetrates, and output shaft (4) one end connects measured piece (2), and the other end connects magnetic levitation control mechanism (5), and the bottom end side of base (1) is equipped with measured piece support table (101), and hot vacuum tank (3) includes: high-strength heat sink (301), flange (302), ring encoder (303), encoder support table (304), magnetic fluid sealing element (305), outside base (306), measured piece support table (101) right side is equipped with high-strength heat sink (301), high-strength heat sink (301) right side is equipped with encoder support table (304), and flange (302) is installed on encoder support table (304), and ring encoder (303) is installed in flange (302), and magnetic fluid sealing element (305) is installed on the outer edge of the through shaft hole of hot vacuum tank (3), and outside base (306) is installed on the outside of hot vacuum tank (3), and magnetic levitation control mechanism (5) is installed on the upper end of outside base (306), and high-strength heat sink (301) has the through hole with the coaxial center of the through shaft hole of hot vacuum tank (3) in middle, and output shaft (4) is installed in two through holes.

2. The high-precision thermal vacuum experiment angle testing device according to claim 1, characterized in that: Magnetic levitation control mechanism (5) includes: magnetic levitation generator (501), top mounting table (502), repulsion control table (503), auxiliary ring encoder (504).

3. The high-precision thermal vacuum experiment angle testing device according to claim 2, characterized in that: Magnetic levitation control mechanism (5) lower end is equipped with magnetic levitation generator (501), and the upper end of magnetic levitation generator (501) is equipped with top mounting table (502) on opposite sides, and top mounting table (502) is equipped with auxiliary ring encoder (504) respectively, and the front end of auxiliary ring encoder (504) is equipped with repulsion control table (503).

4. The high-precision thermal vacuum experiment angle testing device according to claim 1 or 2, characterized in that: Output shaft (4) one end connects measured piece (2) and is installed on measured piece support table (101), and the other end is installed at the center of top mounting table (502).

5. The high-precision thermal vacuum experimental angle testing device according to claim 1, characterized in that: Output shaft (4) is equipped with heat insulation coupling (401), and it is located in the left side of high-strength heat sink (301).

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