CN217901230U

CN217901230U - Electric propulsion four-dimensional moving sliding table for space experiment test

Info

Publication number: CN217901230U
Application number: CN202221063750.XU
Authority: CN
Inventors: 戴建新; 戴科晨
Original assignee: Changshu Yuhua Vacuum Equipment Science And Technology Co ltd
Current assignee: Changshu Yuhua Vacuum Equipment Science And Technology Co ltd
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-11-25
Anticipated expiration: 2032-05-06

Abstract

The utility model discloses an electric propulsion four-dimensional removes slip table for space experiment test, including being fixed in the X axle guide rail in the vacuum chamber, be equipped with the rack between the X axle guide rail, the both sides of Y axle base are equipped with the support column, the bottom of support column be equipped with X axle guide rail complex guide pulley, it is provided with X axle motor to suspend in midair on the Y axle base, the pivot of X axle motor be connected with rack complex gear, be provided with Y axle screw moving mechanism on the Y axle base, Y axle screw moving mechanism drive Z axle base removes along the Y axle, be equipped with worm gear mechanism on the Z axle base, the pivot of worm wheel of worm gear mechanism is the Z axle setting, the fixed Z axle screw moving mechanism that is equipped with on the worm wheel, Z axle screw moving mechanism drive plasma flows the probe and removes along the Z axle. The utility model discloses simple structure, but with the public guide rail of cargo platform, reduce the interference between equipment.

Description

Electric propulsion four-dimensional moving sliding table for space experiment test

Technical Field

The utility model relates to a multiaxis removes slip table especially relates to an electric propulsion four-dimensional removes slip table for space experiment test.

Background

The xenon ion thruster utilizes the thrust generated by gas ionization acceleration to push the spacecraft to operate. After ignition of the xenon ion thruster, a plasma stream is generated, which needs to be measured by a dedicated probe. In the experimental test of the xenon ion thruster, a vacuum sealing system is used, a movable carrying platform is generally required to be arranged in the vacuum sealing system to be equipped with various experimental instruments, and a probe for measuring plasma flow is required to move in a vacuum chamber to reach each measuring position point, so that how to arrange a moving device for driving the probe to meet the measuring requirement and reduce the interference with the carrying platform is the problem to be solved.

SUMMERY OF THE UTILITY MODEL

To the defect of above-mentioned prior art, the utility model provides a test is with electric propulsion four-dimensional removal slip table for space experiment, the purpose is that drive plasma flows measuring probe and removes at each measurement position point, guarantees simple structure, reduces and the objective table goes up the interference of equipment.

The utility model discloses technical scheme as follows: the utility model provides an electric propulsion four-dimensional removes slip table for space experiment test, is including being fixed in the X axle guide rail in the vacuum tank, be equipped with the rack between the X axle guide rail, the both sides of Y axle base are equipped with the support column, the bottom of support column be equipped with X axle guide rail complex guide pulley, it is provided with X axle motor to suspend in midair on the Y axle base, the pivot of X axle motor be connected with rack complex gear, be provided with Y axle lead screw moving mechanism on the Y axle base, Y axle lead screw moving mechanism drive Z axle base removes along the Y axle, be equipped with worm gear mechanism on the Z axle base, the pivot of worm gear mechanism is Z axle setting, the fixed Z axle lead screw moving mechanism that is equipped with on the worm gear, Z axle lead screw moving mechanism drive plasma flows the probe and removes along the Z axle.

Furthermore, the X-axis motor, the Y-axis screw rod moving mechanism and the Z-axis screw rod moving mechanism are all wrapped with stainless steel shielding cases, the tooth surface of the rack is arranged upwards, a rack shielding case with a lateral opening is fixed on one side of the rack, one side of the rack shielding case is open, and a gap for the gear to move is reserved between the top surface of the rack shielding case and the tooth surface.

Furthermore, the Z-axis screw rod moving mechanism comprises a Z-axis motor, a shielding rod, a Z-axis screw rod and a Z-axis sliding block, the Z-axis motor and the shielding rod are fixedly arranged on the worm wheel, the Z-axis screw rod is arranged in the shielding rod and driven by the Z-axis motor, the Z-axis sliding block and the Z-axis screw rod are matched to form a screw rod nut kinematic pair, a guide groove is formed in one side of the shielding rod, and one side of the Z-axis sliding block extends out of the guide groove and is used for being connected with the plasma flow probe.

Furthermore, an insulating guide bearing is arranged on the Z-axis sliding block and arranged in the guide groove.

Furthermore, the bottom of the support column is at least provided with two guide wheels, and the guide wheels are respectively matched with the top surface and the side surface of the X-axis guide rail.

Further, the gear is a polytetrafluoroethylene wheel, and the guide wheel is a ceramic bearing.

The utility model provides a technical scheme's advantage lies in:

the X shaft is driven in a gear rack mode, and is driven by a carrying platform in a mode of sharing a guide rail, repeated laying of guide rails in the X shaft is reduced, so that interference between a sliding table mechanism and equipment on the carrying platform is reduced, in addition, the mechanism can be conveniently taken down from the guide rail when the sliding table is not needed by driving in the gear rack mode, and meanwhile, the whole sliding table can be insulated from the vacuum tank by the gear and a guide wheel which are made of polytetrafluoroethylene insulating materials; through at Z axle base with worm gear mode drive Z axle screw moving mechanism rotate the rotation that realizes the Z axle, reduced the quality of slip table at Z axle direction top, device simple structure, stability is high. In addition, the whole sliding table device is provided with the shielding cover at the position of the driving mechanism, so that stable work can be ensured under the influence of high temperature and high impact of plasma tail flame of the propeller.

Drawings

Fig. 1 is a schematic view of a main view structure of an electrically-propelled four-dimensional moving sliding table for a space experiment test.

Fig. 2 is a partial structural view at a of fig. 1.

Fig. 3 is a partial structural view at B of fig. 1.

Fig. 4 is a schematic side view of an electrically propelled four-dimensional moving slide table for a spatial experiment test.

Detailed Description

The present invention is further described in the following examples, which should be construed as merely illustrative and not a limitation of the scope of the present invention, and modifications of equivalent forms to those skilled in the art will fall within the scope of the present invention as defined in the appended claims after reading the present specification.

Please refer to fig. 1 to 4, an electric propulsion four-dimensional moving sliding table for a space experiment test according to an embodiment of the present invention is disposed in the vacuum tank 3, and is used to drive the plasma flow probe to move in the vacuum tank 3 for measurement. The X-axis guide rail device comprises an X-axis guide rail 1, an X-axis motor 2, a Y-axis screw rod 10 moving mechanism, a worm and gear mechanism and a Z-axis screw rod moving mechanism. The X-axis guide rail 1 is made of square tubes and is provided with two guide rails which are fixedly arranged in the vacuum tank 3. The length direction of the X-axis guide rail 1 is laid along the axial direction of the vacuum tank 3, and the X-axis guide rail 1 can be used for assembling a loading platform for placing other equipment. A support made of stainless steel square tubes is fixedly connected with X-axis guide rails 1, a rack 4 is laid between the two X-axis guide rails 1 on the support, the rack 4 is parallel to the X-axis guide rails 1, and the tooth surface of the rack is arranged upwards.

Y axle base 5 sets up in 1 top of X axle guide rail, and the both sides of Y axle base 5 are equipped with support column 6, and the bottom of every support column 6 is equipped with two guide pulleys 7, and guide pulley 7 is ceramic bearing, and two guide pulleys 7 cooperate with the top surface and the side of X axle guide rail 1 respectively for Y axle base 5 can follow X axle guide rail 1 steady movement when receiving thrust drive. The power source for moving the Y-axis base 5 is an X-axis motor 2, the X-axis motor 2 is suspended below the Y-axis base 5, a rotating shaft of the X-axis motor 2 is connected with a gear 8, the gear 8 is a polytetrafluoroethylene wheel and is meshed with a rack 4 through the gear 8, and the Y-axis base 5 can be driven to move through the rotation of the X-axis motor 2. The guide wheel 7 and the gear 8 can insulate the part above the X-axis guide rail 1 and the rack 4 from the vacuum tank 3. The Y-axis lead screw 10 moving mechanism is installed on the Y-axis base 5 and comprises a Y-axis motor 9, a Y-axis lead screw 10, a limiting slide rail 11 and a limiting slide block 12, the Y-axis motor 9 is installed at one end of the Y-axis base 5 and used for driving the Y-axis lead screw 10 to rotate, and the Z-axis base 13 is fixed with a moving block 31 and matched with the Y-axis lead screw 10 to form a lead screw nut kinematic pair. Spacing slide rail 11 is fixed on Y axle base 5, and parallel arrangement is in the both sides of Y axle lead screw 10, and the both sides of Z axle base 13 are fixed with spacing slider 12, and spacing slider 12 mutually supports with spacing slide rail 11, and when Y axle motor 9 drive Y axle lead screw 10 rotated, Z axle base 13 carried out the translation along Y axle lead screw 10 under the cooperation restriction of spacing slider 12 and spacing slide rail 11.

The worm gear mechanism is installed on Z axle base 13, and the pivot 15 of worm wheel 14 of worm gear mechanism is the Z axle setting, and in this embodiment, the pivot 15 of worm wheel 14 and Z axle base 13 fixed setting, worm wheel 14 pass through the bearing and cooperate with the pivot 15 of worm wheel 14. A rotating motor 16 is arranged on one side of the worm wheel 14 and fixed with the Z-axis base 13, a rotating shaft of the rotating motor 16 is connected with a worm 17 to drive the worm 17 to rotate, and the worm 17 is matched with the worm wheel 14 to drive the worm wheel 14 to rotate. An installation plate 18 is fixed on the top surface of the worm wheel 14, and a Z-axis screw 21 moving mechanism is installed on the installation plate 18. The Z-axis lead screw 21 moving mechanism comprises a Z-axis motor 19, a shielding rod 20, a Z-axis lead screw 21 and a Z-axis sliding block 22, the Z-axis motor 19 is vertically arranged and fixed on the mounting plate 18, a Z-axis motor shielding cover 23 is wrapped outside the Z-axis motor 19 and made of stainless steel, the Z-axis motor shielding cover 23 is fixed with the mounting plate 18, the shielding rod 20 is a hollow stainless steel pipe, and the shielding rod 20 and the Z-axis motor shielding cover 23 are fixed and extend in the Z-axis direction. The Z-axis screw rod 21 is arranged in the shielding rod 20, the top end of the Z-axis screw rod 21 is matched with the shielding rod 20 through a bearing, and the bottom end of the Z-axis screw rod 21 is connected with a rotating shaft of the Z-axis motor 19. One side of the shielding rod 20 is provided with a guide groove 24, and the Z-axis slide block 22 is matched with the Z-axis screw rod 21 to form a screw rod nut kinematic pair. An insulating guide bearing 25 is arranged on the Z-axis slide block 22, the insulating guide bearing 25 is arranged in the guide groove 24, and one side of the Z-axis slide block 22 extends out of the guide groove 24 and is used for being connected with a plasma flow probe 26.

In the embodiment, when the plasma flow probe 26 is driven to move, the worm gear mechanism and the Z-axis lead screw 21 moving mechanism are driven by the X-axis motor 2 and the Y-axis motor 9 to move on the XY-axis plane together, the Z-axis lead screw 21 moving mechanism is driven by the rotating motor 16 to rotate around the Z axis, the plasma flow probe 26 is driven by the Z-axis motor 19 to lift along the Z axis, the components for lifting on the Z axis are only the Z-axis slide block 22 and the plasma flow probe 26, the mass is small, and other devices are arranged at lower positions, so that the stability is improved. And because the plasma tail flame of the propeller has the characteristics of high temperature, large impact force and the like, in order to ensure that the whole device works more reliably, a rack shielding cover 27 with a lateral opening is fixed on one side of the rack 4, one side of the rack shielding cover 27 is opened, and a gap for the gear 8 to move is reserved between the top surface of the rack shielding cover 27 and the tooth surface of the rack 4. The X-axis motor 2, the Y-axis motor 9 and the rotating motor 16 are all wrapped by motor shielding covers 28, square shielding covers 29 are arranged on the Y-axis base 5, the square shielding covers 29 are used for shielding the Y-axis screw rods 10, the limiting slide rails 11, the limiting slide blocks 12, the worm wheels and the mounting plate 18, and open grooves 30 extending in the Y-axis direction are formed in the tops of the square shielding covers 29 for the Z-axis motor 19 to move. The influence of the plasma tail flame on the whole device is reduced by arranging a plurality of shielding cases.

Claims

1. The utility model provides an electric propulsion four-dimensional removes slip table for space experiment test, a serial communication port, including being fixed in the X axle guide rail in the vacuum chamber, be equipped with the rack between the X axle guide rail, the both sides of Y axle base are equipped with the support column, the bottom of support column be equipped with X axle guide rail complex guide pulley, it is provided with X axle motor to suspend in midair on the Y axle base, the pivot of X axle motor be connected with rack complex gear, be provided with Y axle screw moving mechanism on the Y axle base, Y axle screw moving mechanism drive Z axle base removes along the Y axle, be equipped with worm gear mechanism on the Z axle base, the pivot of worm wheel of worm gear mechanism is the Z axle setting, the fixed Z axle screw moving mechanism that is equipped with on the worm wheel, Z axle screw moving mechanism drive plasma flows the probe and removes along the Z axle.

2. The electric propulsion four-dimensional moving sliding table for the space experiment test according to claim 1, wherein the X-axis motor, the Y-axis screw moving mechanism and the Z-axis screw moving mechanism are all wrapped with stainless steel shielding cases, the tooth surfaces of the racks are arranged upwards, a rack shielding case with a lateral opening is fixed on one side of each rack, one side of the rack shielding case is open, and a gap for the gear to move is reserved between the top surface of the rack shielding case and the tooth surfaces.

3. The electric propulsion four-dimensional moving sliding table for the spatial experiment testing according to claim 1, wherein the Z-axis screw rod moving mechanism comprises a Z-axis motor, a shielding rod, a Z-axis screw rod and a Z-axis slider, the Z-axis motor and the shielding rod are fixedly arranged on the worm wheel, the Z-axis screw rod is arranged in the shielding rod and driven by the Z-axis motor, the Z-axis slider and the Z-axis screw rod are matched to form a screw nut kinematic pair, a guide groove is formed in one side of the shielding rod, and one side of the Z-axis slider is extended out of the guide groove and used for being connected with the plasma flow probe.

4. The electrically propelled four-dimensional moving sliding table for the spatial experiment testing according to claim 3, wherein an insulating guide bearing is arranged on the Z-axis sliding block and is arranged in the guide groove.

5. The electrically propelled four-dimensional moving sliding table for the space experiment test as claimed in claim 1, wherein at least two guide wheels are arranged at the bottom of the supporting column, and the guide wheels are respectively matched with the top surface and the side surface of the X-axis guide rail.

6. The electrically propelled four-dimensional moving sliding table for the space experiment test as claimed in claim 1, wherein the gear is a teflon wheel, and the guide wheel is a ceramic bearing.