CN209841399U - Vacuum test device with movable vacuum pumping system - Google Patents
Vacuum test device with movable vacuum pumping system Download PDFInfo
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- CN209841399U CN209841399U CN201920732920.0U CN201920732920U CN209841399U CN 209841399 U CN209841399 U CN 209841399U CN 201920732920 U CN201920732920 U CN 201920732920U CN 209841399 U CN209841399 U CN 209841399U
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Abstract
The utility model discloses a vacuum test device with portable vacuum pumping system, including vacuum box, stainless steel bottom plate, vacuum pumping system, the sealed axle of magnetic current body, drive, loading attachment in area T type groove and by the survey work piece, vacuum box, drive, loading attachment and by survey the work piece setting on the stainless steel bottom plate in area T type groove, drive, loading attachment set up in the vacuum box outside, by surveying the work piece setting inside the vacuum box, the sealed axle setting of magnetic current body is between vacuum box and drive, loading attachment for connect in the vacuum box by survey work piece and the outer drive of vacuum box, loading attachment. The utility model discloses with vacuum chamber, drive, 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 attitude 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 test device of portable vacuum pumping system is equipped with.
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. In the prior art, vacuum tanks, a workpiece platform to be measured and a lifting mechanism are integrated into a whole, and a whole set of vacuum pumping system is provided for each vacuum tank. The method makes the structure of the vacuum tank complex and the maintenance difficult, and simultaneously needs to be provided with a large number of vacuum pumping systems, thereby causing the waste of resources. Because drive, loading device can not normally work under vacuum environment, so during the experiment, drive, loading device arrange the vacuum tank outside in, and the work piece that is surveyed is arranged in inside the vacuum tank, and drive, loading device and the work piece that is surveyed are installed on different platforms, need adjust the gesture of each mounting platform and satisfy experimental axiality's requirement, 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 driving and loading devices and the tested workpiece on the 3 mounting platforms and 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 and 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
An object of the utility model is to overcome prior art not enough, provide a vacuum pumping system portable, the axiality adjustment is simple, the high vacuum test device who is equipped with portable vacuum pumping system of system rigidity.
The utility model discloses a following technical scheme realizes above-mentioned purpose: a vacuum test device with a movable vacuum pumping system comprises a vacuum box, a stainless steel base plate with a T-shaped groove, a vacuum pumping system, a magnetic fluid sealing shaft, a driving device, a loading device and a workpiece to be tested, wherein the vacuum box, the driving device, the loading device and the workpiece to be tested are arranged on the stainless steel base plate with the T-shaped groove, the driving device and the loading device are arranged outside the vacuum box, the workpiece to be tested 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 tested in 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 tested in 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 is connected with, the vacuum box is provided with an air exhaust hole, and is vacuumized through a vacuum air exhaust system to simulate the vacuum environment of a vacuum test;
the vacuum box is provided with LF160 flange on the surface, the vacuum pumping system is portable frame dolly vacuum unit, and portable frame dolly vacuum unit is connected with the vacuum box through LF160 flange and for the vacuum box evacuation, and portable frame dolly vacuum unit is inside to be provided with the pumpdown in advance, live the pumpdown and compound vacuum gauge, utilizes the pumpdown in advance and live the pumpdown and takes out the vacuum in the vacuum box below the appointed requirement, the vacuum environment of simulation vacuum test, and compound vacuum gauge carries out the vacuum measurement to the vacuum box.
Furthermore, the vacuum box adopts a resistance gauge as a low vacuum measuring gauge and an ionization gauge as a high vacuum measuring gauge, gauge pipes of the resistance gauge and the ionization gauge are arranged on corresponding flanges at the top of the vacuum box, and a vacuum pressure gauge is matched as an auxiliary measuring system for low vacuum measurement.
Furthermore, the inlet and outlet pipelines of the pre-pump and the live pump are stainless steel metal pipelines.
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.
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 vacuum box is made into a cuboid, so that the space utilization rate, the vacuumizing speed and the heating speed of the vacuum box can be improved, and energy is saved; the evacuation system is movable, and one set of vacuum system can evacuate vacuum tanks with different specifications at different time, so that the utilization rate of the vacuum system is improved, and the waste of resources is reduced.
Drawings
Fig. 1 is a front view of a vacuum test apparatus equipped with a movable vacuum pumping system of the present invention.
Fig. 2 is a top view of the vacuum testing apparatus with a movable vacuum pumping system of the present invention.
Fig. 3 is a schematic structural diagram of the mobile frame trolley vacuum unit of the utility model.
Fig. 4 is the external structure schematic diagram of the vacuum box of the present invention.
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, 114-a loading motor, 302-an LF160 connecting flange, 303-an electric plug connector interface and 304-a flange plate.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1 to 4, a vacuum test apparatus equipped with a mobile vacuum pumping system 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 tested, wherein the vacuum box 110, the driving device, the loading device and the workpiece to be tested 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 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 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 tested 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 plate 304, 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.
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 vacuum box 110 is provided with an LF160 connecting flange 115 on the surface, the vacuum pumping system is a movable rack trolley vacuum unit, the movable rack trolley vacuum unit is connected with the vacuum box 110 through the LF160 connecting flange 115 and pumps the vacuum box 110, a pre-pump, a live pump and a composite vacuum gauge are arranged in the movable rack trolley vacuum unit, the vacuum degree in the vacuum box 110 is pumped to below the specified requirement by the pre-pump and the live pump, the vacuum environment of a vacuum test is simulated, and the composite vacuum gauge performs vacuum measurement on the vacuum box 110.
The vacuum box 110 adopts a resistance gauge as a low vacuum measuring gauge and an ionization gauge as a high vacuum measuring gauge, and gauge pipes of the resistance gauge and the ionization gauge are installed on corresponding flanges at the top of a vacuum chamber and are provided with a vacuum pressure gauge as an auxiliary measuring system for low vacuum measurement.
And the inlet and outlet pipelines of the pre-pumping pump and the live pumping pump are stainless steel metal pipelines.
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, and the vacuum box 110, the driving device, the loading device and the workpiece to be tested are installed on the stainless steel bottom plate 108 with the T-shaped grooves through the matching of bolts and the T-shaped grooves.
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.
Vacuum box 110 is the cuboid, and 1104 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 vacuum box 110 passes through the bolt fastening on the stainless steel bottom plate 108 in area T type groove and connect face department to have a sealing material, realizes vacuum box 110's sealed, and vacuum box 110 top surface has the observation window, can be at the test in-process real-time observation vacuum box 110 in the motion state of being surveyed the work piece.
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 (7)
1. The utility model provides a vacuum test device of portable vacuum pumping system is equipped with 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 (304), the vacuum box (110) is provided with an air pumping hole, the vacuum box (110) is vacuumized through a vacuum air pumping system, and the vacuum environment of a vacuum test is simulated;
the vacuum box (110) is provided with LF160 flange (115) on the surface, the vacuum pumping system is portable frame dolly vacuum unit, and portable frame dolly vacuum unit is connected with vacuum box (110) through LF160 flange (115) and for vacuum box (110) evacuation, and portable frame dolly vacuum unit is inside to be provided with the pumpdown, live pump and compound vacuum gauge, utilizes the pumpdown and live the pump and takes out the vacuum in vacuum box (110) below the appointed requirement, the vacuum environment of simulation vacuum test, and compound vacuum gauge carries out the vacuum measurement to vacuum box (110).
2. A vacuum test apparatus equipped with a mobile vacuum pumping system according to claim 1, wherein: the vacuum box (110) adopts a resistance gauge as a low vacuum measuring gauge, an ionization gauge as a high vacuum measuring gauge, gauge pipes of the resistance gauge and the ionization gauge are arranged on corresponding flanges at the top of the vacuum box, and a vacuum pressure gauge is matched as an auxiliary measuring system for low vacuum measurement.
3. A vacuum test apparatus equipped with a mobile vacuum pumping system according to claim 1, wherein: and the inlet and outlet pipelines of the pre-pumping pump and the live pumping pump are stainless steel metal pipelines.
4. A vacuum test apparatus equipped with a mobile vacuum pumping system 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, and 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.
5. A vacuum test apparatus equipped with a mobile vacuum pumping system 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.
6. A vacuum test apparatus equipped with a mobile vacuum pumping system 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).
7. A vacuum test apparatus equipped with a mobile vacuum pumping system according to claim 1, wherein: vacuum box (110) are the cuboid, 4 sides of vacuum box (110) are made through the welding by 4 stainless steel plates, the top surface passes through bolted connection to be fixed on the side and connect face department and have a sealing material, vacuum box (110) pass through the bolt fastening on stainless steel bottom plate (108) in area T type groove and connect face department and have a sealing material, realize the sealed of vacuum box (110), vacuum box (110) top surface has the observation window, can be in the test process in real time observation vacuum box (110) the motion state of being surveyed the work piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920732920.0U CN209841399U (en) | 2019-05-21 | 2019-05-21 | Vacuum test device with movable vacuum pumping system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920732920.0U CN209841399U (en) | 2019-05-21 | 2019-05-21 | Vacuum test device with movable vacuum pumping system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209841399U true CN209841399U (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920732920.0U Expired - Fee Related CN209841399U (en) | 2019-05-21 | 2019-05-21 | Vacuum test device with movable vacuum pumping system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209841399U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044648A (en) * | 2019-05-21 | 2019-07-23 | 浙江工业大学 | Vacuum test device equipped with mobile vacuum extract system |
| CN112729824A (en) * | 2020-12-30 | 2021-04-30 | 浙江工业大学 | Cold vacuum environment friction test platform |
-
2019
- 2019-05-21 CN CN201920732920.0U patent/CN209841399U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044648A (en) * | 2019-05-21 | 2019-07-23 | 浙江工业大学 | Vacuum test device equipped with mobile vacuum extract system |
| CN112729824A (en) * | 2020-12-30 | 2021-04-30 | 浙江工业大学 | Cold vacuum environment friction test platform |
| CN112729824B (en) * | 2020-12-30 | 2024-06-11 | 浙江工业大学 | Cold vacuum environment friction test platform |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191224 |