CN210154817U - Coaxial adjusting device inside and outside vacuum box - Google Patents
Coaxial adjusting device inside and outside vacuum box Download PDFInfo
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- CN210154817U CN210154817U CN201920732949.9U CN201920732949U CN210154817U CN 210154817 U CN210154817 U CN 210154817U CN 201920732949 U CN201920732949 U CN 201920732949U CN 210154817 U CN210154817 U CN 210154817U
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Abstract
The utility model discloses an inside, outside coaxial adjusting device of vacuum chamber includes vacuum chamber, takes stainless steel bottom plate, vacuum pumping system, the sealed axle of magnetic current body, drive arrangement, loading device in T type groove and is surveyed the work piece, vacuum chamber, drive arrangement, loading device and be surveyed the work piece setting on taking the stainless steel bottom plate in T type groove, drive arrangement, loading device set up in vacuum chamber outside, being surveyed the work piece setting inside vacuum chamber, the sealed axle setting of magnetic current body guarantees vacuum chamber's leakproofness between vacuum chamber and drive arrangement, loading device in the transmission motion. The utility model discloses with vacuum chamber, drive arrangement, loading device and by the measuring workpiece setting on the stainless steel bottom plate in area T type groove, need not each mounting platform's gesture adjustment, simplified adjustment mechanism and accommodation process, improved system rigidity to experimental precision has been improved.
Description
Technical Field
The utility model relates to a spacecraft vacuum test field, more specifically the theory that says so especially relates to a vacuum chamber is inside, outside coaxial adjusting device.
Background
During the development and service of the spacecraft, various types of space environment simulation tests must be carried out to fully expose potential defects of products and check the design and manufacturing quality of the spacecraft.
Aiming at long-life driving and loading tests of a spacecraft in a vacuum environment, a vacuum environment meeting the requirement of vacuum degree needs to be provided for a workpiece to be tested. The existing method integrates a vacuum tank, a tested workpiece platform and a lifting mechanism. This makes the vacuum tank structure complicated and makes maintenance difficult. Because drive arrangement, loading attachment can not normally work under vacuum environment, so during the experiment, drive arrangement, loading attachment arrange the vacuum tank outside in, and the work piece that is surveyed is arranged in inside the vacuum tank, and drive arrangement, loading attachment and the work piece that is surveyed are installed on different platforms, need adjust the gesture of each mounting platform and satisfy the requirement of experimental axiality, and every mounting platform need set up 6 degree of freedom adjustable adjustment mechanism. Before the test starts, due to the influences of temperature change, ground settlement and self stress change, the 3 mounting platforms, the driving devices, the loading devices and the tested workpieces on the mounting platforms need to be adjusted to meet the specified coaxiality requirement, so that the adjusting mechanism and the coaxiality adjusting process of each mounting platform become complicated, and the system rigidity of the vacuum test device can be reduced. In the test process, the high-speed rotation of the driving device and the loading device can enable each mounting platform to easily generate vibration with different frequencies, so that the test result is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the not enough of prior art, provide a vacuum test method and device that axiality adjustment is simple, system rigidity is high.
The utility model discloses a following technical scheme realizes above-mentioned purpose: an inside and outside coaxial adjusting device of a vacuum box comprises the vacuum box, a stainless steel bottom plate with a T-shaped groove, a vacuum air pumping system, a magnetic fluid sealing shaft, a driving device, a loading device and a workpiece to be measured, wherein the vacuum box, the driving device, the loading device and the workpiece to be measured are arranged on the stainless steel bottom plate with the T-shaped groove, the driving device and the loading device are arranged outside the vacuum box, the workpiece to be measured is arranged inside the vacuum box, the magnetic fluid sealing shaft is arranged between the vacuum box and the driving device and between the vacuum box and the loading device, one end of the workpiece to be measured inside the vacuum box is connected with the driving device outside the vacuum box through the magnetic fluid sealing shaft, the other end of the workpiece to be measured inside the vacuum box is connected with the loading device outside the vacuum box through the magnetic fluid sealing shaft, the sealing performance of the vacuum box is guaranteed while motion is transmitted, and the magnetic fluid sealing shaft, the vacuum box is provided with an air exhaust hole, and the vacuum box is vacuumized through a vacuum air exhaust system to simulate the vacuum environment of a vacuum test.
Furthermore, the T-shaped groove on the stainless steel bottom plate with the T-shaped groove is not continuous, the T-shaped grooves are arranged in parallel, the vacuum box, the driving device, the loading device and the workpiece to be tested are installed on the stainless steel bottom plate with the T-shaped groove through the matching of the bolts and the T-shaped groove, the postures of all installation platforms do not need to be adjusted in the installation process, the installation becomes simple due to the existence of the T-shaped groove, the requirement of coaxiality is met more easily, and meanwhile, the system rigidity can be improved, so that the test precision is improved.
Furthermore, the loading device comprises a loading motor and a first motor supporting seat, the first motor supporting seat is fixed on the stainless steel bottom plate with the T-shaped groove through the matching of a bolt and the T-shaped groove, and the loading motor is arranged on the first motor supporting seat; the driving device comprises a driving motor and a second motor supporting seat, the second motor supporting seat is fixed on the stainless steel bottom plate with the T-shaped groove through the matching of a bolt and the T-shaped groove, and the driving motor is installed on the second motor supporting seat.
Furthermore, the coaxiality adjustment is jointly ensured through a driving motor, a loading motor and a magnetic fluid sealing shaft, the driving motor and the loading motor are respectively provided with a spigot, an installation interface connected with the magnetic fluid sealing spigot is processed on the vacuum box, when in assembly, the two magnetic fluid sealing shafts are firstly connected with the installation interface of the vacuum box, then the distance between the driving motor, the loading motor and the vacuum box is adjusted, a mandrel and a rigid coupling are used for adjusting the installation positions of the driving motor, the loading motor and a motor supporting seat, a rotating shaft of the magnetic fluid sealing shaft is taken as a reference, whether a motor output shaft meets the installation requirement or not is detected, if the installation requirement is not met, the motor or a motor bracket is finely adjusted until the installation requirement is met, so that the coaxiality of the driving motor, the loading motor and the magnetic fluid sealing shaft is ensured, and the rigid mandrel and the rigid coupling are taken down, and a flexible coupling is arranged between the driving motor and the magnetic fluid sealing shaft, a torque sensor and a speed reducer are arranged between the loading motor and the magnetic fluid sealing shaft, and the flexible coupling, the lengthened shaft, the workpiece to be measured and the workpiece support seat are arranged in the vacuum box.
Further, the vacuum box is the cuboid, and 4 sides of vacuum box are made through the welding by 4 stainless steel plates, and bolted connection fixes on the side and connect face department to have a sealing material, and the vacuum box passes through the bolt fastening on the stainless steel bottom plate in area T type groove and connect face department to have a sealing material, realizes the sealed of vacuum box, and the vacuum box top surface has the observation window, can be in the test process real-time observation vacuum box in the motion state of being surveyed the work piece.
Furthermore, the vacuum pumping system is connected with the pumping hole of the vacuum box through a flange plate and is responsible for pumping the vacuum degree in the vacuum box to be below the specified requirement and simulating the vacuum environment of the vacuum test.
The beneficial effects of the utility model reside in that: the vacuum box, the driving device, the loading device and the workpiece to be tested are arranged on the stainless steel bottom plate with the T-shaped groove, so that the posture adjustment of each mounting platform is not needed, the adjusting mechanism and the adjusting process are simplified, the system rigidity is improved, and the test precision is improved; a new coaxiality adjusting method is provided, the coaxiality adjusting step is simplified, and errors of coaxiality adjustment are reduced; the vacuum box is made of a stainless steel plate and a sealing material through welding and bolt connection, so that the structure of the original vacuum tank is simplified, and the cost is reduced; the cuboid vacuum box can improve the space utilization rate, the vacuumizing speed and the heating speed of the vacuum box, and saves energy.
Drawings
Fig. 1 is a top view of the coaxial adjusting device inside and outside the vacuum box of the present invention.
Fig. 2 is a front view of the coaxial adjusting device inside and outside the vacuum box of the present invention.
Fig. 3 is a schematic view of a conventional vacuum tank driving apparatus and a vacuum tank.
In the figure, 101-a first motor support seat, 102-a driving motor, 103-a flexible coupling, 104-a magnetic fluid sealing shaft, 107-a speed reducer support seat, 108-a stainless steel bottom plate with a T-shaped groove, 109-a torque sensor support seat, 110-a vacuum box, 112-a torque sensor, 113-a speed reducer and 114-a loading motor.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1 to 3, an inside and outside coaxial adjusting device of a vacuum box comprises a vacuum box 110, a stainless steel bottom plate 108 with a T-shaped groove, a vacuum pumping system, a magnetic fluid sealing shaft 104, a driving device, a loading device and a workpiece to be measured, wherein the vacuum box 110, the driving device, the loading device and the workpiece to be measured are arranged on the stainless steel bottom plate 108 with the T-shaped groove, the driving device and the loading device are arranged outside the vacuum box 110, the workpiece to be measured is arranged inside the vacuum box 110, the magnetic fluid sealing shaft 104 is arranged between the vacuum box 110 and the driving device and the loading device, one end of the workpiece to be measured inside the vacuum box 110 is connected with the driving device outside the vacuum box 110 through the magnetic fluid sealing shaft 104, the other end of the workpiece to be measured inside the vacuum box 110 is connected with the loading device outside the vacuum box 110 through the magnetic fluid sealing shaft 104, and the sealing performance of the vacuum box 110 is ensured while transmitting motion, the magnetic fluid sealing shaft 104 is connected with the vacuum box 110 through a flange, the vacuum box 110 is provided with an air pumping hole, and the vacuum box 110 is vacuumized through a vacuum air pumping system to simulate the vacuum environment of a vacuum test. The T-shaped grooves on the stainless steel bottom plate 108 with the T-shaped grooves are not continuous, the T-shaped grooves are all arranged in parallel, the vacuum box 110, the driving device, the loading device and the workpiece to be measured are installed on the stainless steel bottom plate 108 with the T-shaped grooves through the matching of bolts and the T-shaped grooves, and the installation process is free from adjusting the postures of all installation platforms.
A torque sensor supporting seat 109 is arranged on a stainless steel bottom plate 108 with a T-shaped groove between the driving device and the magnetic fluid sealing shaft 104, and a speed reducer supporting seat 107 and a torque sensor supporting seat 109 are arranged on the stainless steel bottom plate 108 with a T-shaped groove between the loading device and the magnetic fluid sealing shaft 104 and used for installing a speed reducer 113 and a torque sensor 112.
The loading device comprises a loading motor 114 and a first motor supporting seat 101, the first motor supporting seat 101 is fixed on a stainless steel bottom plate 108 with a T-shaped groove through the matching of a bolt and the T-shaped groove, and the loading motor 114 is installed on the first motor supporting seat 101; the driving device comprises a driving motor 102 and a second motor supporting seat, the second motor supporting seat is fixed on a stainless steel bottom plate 108 with a T-shaped groove through the matching of a bolt and the T-shaped groove, and the driving motor 102 is installed on the second motor supporting seat.
The coaxiality adjustment is jointly ensured through the driving motor 102, the loading motor 114 and the magnetic fluid sealing shaft 104, the driving motor 102 and the loading motor 114 are respectively provided with a spigot, an installation interface connected with the magnetic fluid sealing spigot is processed on the vacuum box 110, when the vacuum box is assembled, the two magnetic fluid sealing shafts 104 are connected with the installation interface of the vacuum box 110, then the distance between the driving motor 102, the loading motor 114 and the vacuum box 110 is adjusted, the installation positions of the driving motor 102, the loading motor 114 and a motor supporting seat are adjusted by using a mandrel and a rigid coupling, whether a motor output shaft meets the installation requirement or not is detected by taking a rotating shaft of the magnetic fluid sealing shaft 104 as a reference, if the installation requirement is not met, the motor or a motor support is finely adjusted until the installation requirement is met, so that the coaxiality of the driving motor 102, the loading motor 114 and the magnetic fluid sealing shafts, after the installation position is determined, the rigid spindle and the rigid coupling are taken down, a flexible coupling 103 is installed between a driving motor 102 and a magnetic fluid sealing shaft 104, a torque sensor 112 and a speed reducer 113 are installed between a loading motor 114 and the magnetic fluid sealing shaft 104, and the flexible coupling 103, a lengthened shaft, a workpiece to be measured and a workpiece support seat are installed inside a vacuum box 110.
The vacuum pumping system is connected with the pumping holes of the vacuum box 110 through a flange plate and is responsible for pumping the vacuum degree in the vacuum box 110 to be below the specified requirement and simulating the vacuum environment of a vacuum test.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.
Claims (6)
1. The utility model provides a coaxial adjusting device in vacuum box, outside which characterized in that: the device comprises a vacuum box (110), a stainless steel base plate (108) with a T-shaped groove, a vacuum pumping system, a magnetic fluid sealing shaft (104), a driving device, a loading device and a workpiece to be tested, wherein the vacuum box (110), the driving device, the loading device and the workpiece to be tested are arranged on the stainless steel base plate (108) with the T-shaped groove, the driving device and the loading device are arranged outside the vacuum box (110), the workpiece to be tested is arranged inside the vacuum box (110), the magnetic fluid sealing shaft (104) is arranged between the vacuum box (110) and the driving device and the loading device, one end of the workpiece to be tested in the vacuum box (110) is connected with the driving device outside the vacuum box (110) through the magnetic fluid sealing shaft (104), the other end of the workpiece to be tested in the vacuum box (110) is connected with the loading device outside the vacuum box (110) through the magnetic fluid sealing shaft (104), and the sealing performance of the vacuum box (110) is ensured while motion is transmitted, the magnetic fluid sealing shaft (104) is connected with the vacuum box (110) through a flange plate, the vacuum box (110) is provided with an air exhaust hole, and the vacuum box (110) is vacuumized through a vacuum air exhaust system to simulate the vacuum environment of a vacuum test.
2. The device for coaxial adjustment of the inside and outside of a vacuum box according to claim 1, wherein: the T-shaped grooves in the stainless steel bottom plate (108) with the T-shaped grooves are not continuous, the T-shaped grooves are all arranged in parallel, the vacuum box (110), the driving device, the loading device and the workpiece to be measured are installed on the stainless steel bottom plate (108) with the T-shaped grooves through the matching of bolts and the T-shaped grooves, and the installation process is free from adjusting the postures of all installation platforms.
3. The device for coaxial adjustment of the inside and outside of a vacuum box according to claim 1, wherein: the loading device comprises a loading motor (114) and a first motor supporting seat (101), the first motor supporting seat (101) is fixed on a stainless steel bottom plate (108) with a T-shaped groove through the matching of a bolt and the T-shaped groove, and the loading motor (114) is installed on the first motor supporting seat (101); the driving device comprises a driving motor (102) and a second motor supporting seat, the second motor supporting seat is fixed on a stainless steel bottom plate (108) with a T-shaped groove through the matching of a bolt and the T-shaped groove, and the driving motor (102) is installed on the second motor supporting seat.
4. The device for coaxial adjustment of the inside and outside of a vacuum box according to claim 1, wherein: the coaxiality adjustment is jointly ensured through a driving motor (102), a loading motor (114) and a magnetic fluid sealing shaft (104), the driving motor (102) and the loading motor (114) are respectively provided with a spigot, an installation interface connected with the magnetic fluid sealing spigot is processed on the vacuum box (110), during assembly, the two magnetic fluid sealing shafts (104) are firstly connected with the installation interface of the vacuum box (110), then the distances between the driving motor (102), the loading motor (114) and the vacuum box (110) are adjusted, a mandrel and a rigid coupling are used for adjusting the installation positions of the driving motor (102), the loading motor (114) and a motor supporting seat, the rotating shaft of the magnetic fluid sealing shaft (104) is used as a reference, whether a motor output shaft meets the installation requirement is detected, and if the installation requirement is not met, the motor or a motor support is finely adjusted, the method comprises the steps that until the installation requirement is met, coaxiality of a driving motor (102), a loading motor (114) and a magnetic fluid sealing shaft (104) is guaranteed, a rigid mandrel and a rigid coupling are taken down after the installation position is determined, a flexible coupling (103) is installed between the driving motor (102) and the magnetic fluid sealing shaft (104), a torque sensor (112) and a speed reducer (113) are installed between the loading motor (114) and the magnetic fluid sealing shaft (104), and the flexible coupling (103), a lengthened shaft, a workpiece to be measured and a workpiece supporting seat are installed inside a vacuum box (110).
5. The device for coaxial adjustment of the inside and outside of a vacuum box according to claim 1, wherein: vacuum box (110) are the cuboid, and 4 sides of vacuum box (110) are made through the welding by 4 stainless steel plates, and bolted connection is fixed on the side and is connected face department and have a sealing material through bolted connection to the top surface, and vacuum box (110) are fixed on stainless steel bottom plate (108) in area T type groove through the bolt and are connected face department and have a sealing material.
6. The device for coaxial adjustment of the inside and outside of a vacuum box according to claim 1, wherein: the vacuum pumping system is connected with the pumping hole of the vacuum box (110) through a flange plate and is responsible for pumping the vacuum degree in the vacuum box (110) to be below the specified requirement and simulating the vacuum environment of a vacuum test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920732949.9U CN210154817U (en) | 2019-05-21 | 2019-05-21 | Coaxial adjusting device inside and outside vacuum box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920732949.9U CN210154817U (en) | 2019-05-21 | 2019-05-21 | Coaxial adjusting device inside and outside vacuum box |
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| Publication Number | Publication Date |
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| CN210154817U true CN210154817U (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920732949.9U Active CN210154817U (en) | 2019-05-21 | 2019-05-21 | Coaxial adjusting device inside and outside vacuum box |
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| CN (1) | CN210154817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274781A (en) * | 2019-05-21 | 2019-09-24 | 浙江工业大学 | The same axis adjustment device in the inside and outside portion of vacuum tank |
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- 2019-05-21 CN CN201920732949.9U patent/CN210154817U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274781A (en) * | 2019-05-21 | 2019-09-24 | 浙江工业大学 | The same axis adjustment device in the inside and outside portion of vacuum tank |
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