Double-anode Hall electric thruster testing device

Abstract

The invention discloses a double-anode Hall electric thruster testing device, and relates to the technical field of electric thruster testing. The device comprises a base, a cathode supporting seat, two anode supporting seats and a driving assembly, the base comprises a first main body and a vertical supporting body, and the vertical supporting body is provided with second scale marks marked in the transverse direction; the anode supporting seat and the cathode supporting seat are respectively used for mounting a propeller anode and a propeller cathode; the two anode supporting seats are in sliding connection with the first main body so as to move towards each other or away from each other, and are positioned on two transverse sides of the cathode supporting seat; the driving assembly is used for driving the two anode supporting seats to synchronously and reversely move, the driving assembly comprises two extension rods, the two extension rods are connected with the two anode supporting seats respectively, and the extension rods are provided with second marks for marking second scale marks; the anode supporting seat comprises a third main body, the third main body is provided with a third kidney-shaped hole, the length direction of the third kidney-shaped hole is transverse, and the third kidney-shaped hole is used for allowing a screw to penetrate through so as to fasten the anode supporting seat.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric thruster testing, and particularly relates to a testing device for a dual-anode Hall electric thruster. Background Art

[0002] An electric thruster is a device that generates thrust using electricity and has been widely used in tasks such as attitude adjustment and orbit transformation of spacecraft such as satellite space stations. The most commonly used ones are Hall electric thrusters, etc. It uses the Hall effect to accelerate and eject the ionized propellant (such as xenon, krypton, etc.) to generate thrust.

[0003] A Hall electric thruster usually includes an anode and a cathode. Generally, a Hall electric thruster has a single anode and a single cathode. However, if greater thrust is required, a new and larger anode needs to be developed. To increase the adaptability of the single anode, by symmetrically placing two smaller single anodes relative to the cathode, the effect of doubling the thrust can be achieved without developing a new thruster head. And the distance between the anode and the cathode is an important parameter, which affects the thrust, efficiency, and discharge stability of the thruster, etc. The anode is usually located at the entrance of the discharge channel, while the cathode is located at a certain distance from the thruster exit. Due to the different powers, working fluids, etc. of the electric thruster, the distance between the anode and the cathode may vary from a few millimeters to dozens of millimeters. When developing a dual-anode Hall electric thruster, it is necessary to determine the spacing according to specific application requirements and performance requirements, and conduct ignition tests to determine the optimal distance between the anode and the cathode.

[0004] Existing testing equipment is limited to Hall electric thrusters with a single anode and a single cathode, that is, the anode and the cathode have independent brackets respectively. If it is desired to test a dual anode, it is impossible to ensure the symmetry of the two anodes relative to the cathode, nor can the positions of the two anodes be changed synchronously. Therefore, the accuracy of the test cannot be guaranteed.

[0005] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0006] The purpose of the present invention is to solve the problem that existing equipment cannot carry out tests on Hall thrusters with dual anodes, and to provide a testing device for a dual-anode Hall electric thruster, including a base, a cathode support seat, two anode support seats, and a driving assembly;

[0007] The base includes a first main body and a vertical support body, and the vertical support body is provided with a second scale line marked horizontally;

[0008] The anode support seat and the cathode support seat are respectively used for installing a thruster anode and a thruster cathode;

[0009] The two anode support seats are slidably connected to the first body to move towards or away from each other, and are located on the transverse two sides of the cathode support seat;

[0010] The driving assembly is used to drive the two anode support seats to move synchronously and in opposite directions. The driving assembly includes two protruding rods, and the two protruding rods are respectively connected to the two anode support seats. The protruding rods are provided with second identifiers for aligning with the second scale lines;

[0011] The anode support seat includes a third body, and the third body is provided with a third waist-shaped hole. The length direction of the third waist-shaped hole is transverse, and the third waist-shaped hole is used for passing through screws to fasten the anode support seat.

[0012] In an embodiment of the present invention, the driving assembly includes a gear, and the two racks protrude in a staggered manner towards each other; the two protruding rods are respectively provided with teeth arranged in an array to form racks, and the teeth of the two protruding rods are arranged oppositely and simultaneously engage with the gear.

[0013] In an embodiment of the present invention, a rotating shaft is provided on one end face of the gear, and the rotating shaft is rotatably connected to the first body.

[0014] In an embodiment of the present invention, a hexagonal hole is provided on the other end face of the gear.

[0015] In an embodiment of the present invention, the vertical support body is provided with a first waist-shaped hole and a second waist-shaped hole; the length directions of the first waist-shaped hole and the second waist-shaped hole are both vertical; the first waist-shaped hole is used for passing through bolts to fasten the cathode support seat; a first scale line is provided on the surface of the vertical support body facing away from the cathode support seat, and the first scale line is marked along the second waist-shaped hole;

[0016] The cathode support seat is provided with a second identifier body opposite to the second waist-shaped hole, and the second identifier body is used for aligning with the first scale line to determine the elevation position of the cathode support seat.

[0017] In an embodiment of the present invention, the first indication is set in a prominent color.

[0018] In an embodiment of the present invention, the vertical support body is provided with a first waist-shaped hole and a second waist-shaped hole; the length directions of the first waist-shaped hole and the second waist-shaped hole are both vertical; the first waist-shaped hole is used for passing through bolts to fasten the cathode support seat; a first scale line is provided on the surface of the vertical support body facing away from the cathode support seat, and the first scale line is marked along the second waist-shaped hole;

[0019] The cathode support base is provided with a polygonal notch, and the polygonal notch forms a horizontal edge, and the edge is used to align with the first scale line to determine the elevation position of the cathode support base.

[0020] In an embodiment of the present invention, two vertical supports are provided and arranged vertically.

[0021] In an embodiment of the present invention, two sets of driving components are provided and are respectively arranged on two opposite sides of the two vertical supports.

[0022] In an embodiment of the present invention, the cathode support base includes a second main body and two vertical connecting parts. The second main body is used to install the thruster cathode, and the two vertical connecting parts are located at the longitudinal connection section of the second main body, and the two vertical connecting parts respectively fit the two vertical supports.

[0023] Compared with the prior art, the technical effects achieved by the present invention are as follows:

[0024] 1. Referring to the second scale line, the two anode support bases can be accurately symmetrical with respect to the thruster cathode, and at the same time, the distance between the two anode support bases can be accurately adjusted.

[0025] 2. By setting the cathode support base to be position-adjustable, the position change situation between the thruster cathode and the thruster anode is enriched in the vertical direction, which is beneficial to testing the best position relationship. Referring to the first scale line, the position of the cathode support base can be accurately determined.

[0026] 3. During the adjustment process in the space, due to the use of bolts for fastening, it has the characteristics of easy manual operation, simple structure and low cost.

[0027] 4. For the hexagonal holes added to the gears, the driving process of the synchronous reverse movement of the two anode support bases is very easy to operate.

[0028] 5. By observing through the second waist-shaped hole, it can be ensured that the cathode support base can align with the first scale line. Otherwise, other structures need to be added to the vertical connecting part in the cathode support base to align with the first scale line. Therefore, this simplifies the processing steps and the blanking amount of the cathode support base. Description of the Drawings

[0029] Figure 1 is an isometric view of a dual-anode Hall thruster test device according to an embodiment of the present invention;

[0030] Figure 2 is an exploded view of a dual-anode Hall thruster test device according to an embodiment of the present invention;

[0031] Figure 3It is a schematic structural view of a base in a dual-anode Hall thruster test device according to an embodiment of the present invention;

[0032] Figure 4 It is an isometric view of an anode support base in a dual-anode Hall thruster test device according to an embodiment of the present invention;

[0033] Figure 5 It is an isometric view of a cathode support base in a dual-anode Hall thruster test device according to an embodiment of the present invention;

[0034] Figure 6 is Figure 5 a partial enlarged view of part A in;

[0035] Figure 7 It is an isometric view of a gear in a dual-anode Hall thruster test device according to an embodiment of the present invention;

[0036] Figure 8 It is an isometric view of a dual-anode Hall thruster test device in a use state according to an embodiment of the present invention.

[0037] Main reference numeral description:

[0038] 1. Base; 11. First main body; 12. Slide rail; 13. Vertical support body; 131. First waist-shaped hole; 132. Second waist-shaped hole; 133. First scale line; 134. Second scale line; 2. Anode support base; 21. Second main body; 22. Third waist-shaped hole; 3. Cathode support base; 31. Third main body; 32. Vertical connection part; 321. Polygonal notch; 322. First identifier; 4. Driving assembly; 41. Gear; 411. Rotating shaft; 412. Hexagonal hole; 42. Rack; 421. Second identifier; 5. Thruster anode; 6. Thruster cathode. Detailed implementation manners

[0039] Unless otherwise clearly stated, throughout the specification and claims, the term "comprise" or its variations such as "comprises" or "including" etc. will be understood to include the stated elements or components, without excluding other elements or other components.

[0040] The technical solution of the present invention will be described below through specific embodiments. It should be understood that one or more steps mentioned in the present invention do not exclude the existence of other methods and steps before and after the combined steps, or other methods and steps can be inserted between these explicitly mentioned steps. It should also be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention. Unless otherwise specified, the numbers of the method steps are only for the purpose of identifying each method step, rather than restricting the arrangement order of each method or limiting the scope of implementation of the present invention. The change or adjustment of their relative relationship can also be regarded as the scope in which the present invention can be implemented under the condition of no substantial change in technical content.

[0041] There are no specific restrictions on the sources of the raw materials and instruments used in the embodiments, and they can be purchased in the market or prepared according to the conventional methods well-known to those skilled in the art.

[0042] As Figures 1 to 8 shown, the double-anode Hall thruster test device according to the preferred embodiment of the present invention includes: a base 1, a cathode support base 3, an anode support base 2, and an adjustment assembly.

[0043] For the convenience of description and understanding of the relative orientation of the structure, in Figure 1 the axis direction represented by arrow A represents the lateral direction in the horizontal plane, and the axis direction represented by arrow B represents the longitudinal direction in the horizontal plane. In Figures 2 - 8 both, the description is made with reference to this direction identification.

[0044] The base 1 includes a first main body 11, and the first main body 11 is in a plate-like structure and is used as the support base for the bottom of the product. Two vertical support bodies 13 are provided in the middle of the first main body 11, and the two vertical support bodies 13 are arranged longitudinally. The vertical support body 13 preferably adopts a vertical plate-like structure.

[0045] A spacing is left between the two vertical support bodies 13 to accommodate the cathode support base 3. Two first waist-shaped holes 131 and one second waist-shaped hole 132 are provided on the vertical support body 13. The length directions of the first waist-shaped hole 131 and the second waist-shaped hole 132 are both in the vertical direction, and the second waist-shaped hole 132 is located between the two first waist-shaped holes 131. A first scale line 133 and a second scale line 134 are respectively provided on the surfaces of the two vertical support bodies 13 facing away from each other. The first scale line 133 is marked along the second waist-shaped hole 132, and the second scale line 134 is located at the bottom of the vertical support body 13 and is marked along the lateral direction.

[0046] The cathode support base 3 is arranged between two vertical support bodies 13. The cathode support base 3 includes a second main body 21 and two vertical connecting parts 32. The second main body 21 is used for installing the thruster cathode 6. The two vertical connecting parts 32 are located at the longitudinal two ends of the second main body 21. Through dimensional design, the better solution is to make the two vertical connecting parts 32 fit the two opposite vertical support bodies 13. The cathode support base 3 and the vertical support body 13 can be fastened by passing two bolts through the vertical connecting part 32 and the first waist-shaped hole 131 and then matching with nuts. Before fastening, the position of the bolt in the first waist-shaped hole 131 can be changed, so as to change the elevation position of the cathode support base 3. In order to accurately adjust the cathode support base 3, the first scale line 133 can be referred to. There are two solutions for how to align with the first scale line 133. One is to open a polygonal notch 321 in the vertical connecting part 32. The purpose of the polygonal notch 321 is to form a horizontal edge, and it is better that the horizontal edge is located at the top of the polygonal notch 321. The second waist-shaped hole 132 is for observation. Through the second waist-shaped hole 132, the horizontal edge can be aligned with the first scale line 133, so as to accurately determine the elevation position of the cathode support base 3. The other is to set a strip-shaped and horizontal first identifier 322 on the vertical connecting part 32. The first identifier 322 is opposite to the second waist-shaped hole 132, so that the first identifier 322 can be directly seen from the second waist-shaped hole 132. Even the first identifier 322 is set to eye-catching colors such as bright red and bright yellow. By aligning the first identifier 322 with the first scale line 133, the elevation position of the cathode support base 3 can also be accurately determined. However, these two solutions can also exist simultaneously. As Figure 5 shown in, the first identifier 322 is located at the horizontal edge above the polygonal notch 321. The first identifier 322 can be a convex block, or a groove, or a coated layer.

[0047] On the transverse direction and on both sides of the vertical support body 13, two groups of slide rails 12 are respectively arranged on the first main body 11. The length direction (sliding direction) of the slide rails 12 is transverse. The two anode support bases 2 are slidably connected to the base 1 through the slide rails 12. The two anode support bases 2 are symmetrically arranged with reference to the center of the base 1. The anode support base 2 includes a third main body 31. The third main body 31 is used for installing the thruster anode 5. A third waist-shaped hole 22 is also provided on the third main body 31. The length direction of the third waist-shaped hole 22 is transverse, that is, consistent with the movement direction of the anode support base 2. The anode support base 2 can be fastened by passing bolts through the third waist-shaped hole 22 and being threadedly connected with the first main body 11.

[0048] The driving assembly 4 is used to drive the two anode support seats 2 to move synchronously and in opposite directions. Two sets of driving assemblies 4 are provided and are respectively arranged on the two opposite sides of the two vertical support bodies 13. The driving assembly 4 includes a gear 41 and two extending rods. The two extending rods are respectively connected to the two third bodies 31 and extend towards each other and are offset, that is, the two extending rods are parallel but not on the same straight line. Further, the extending rods are provided with teeth arranged in an array to form racks 42, and the teeth of the two extending rods are arranged oppositely so as to be able to mesh with the gear 41 simultaneously, achieving the effect of driving the two anode support seats 2 synchronously and in opposite directions. One end face of the gear 41 is provided with a rotating shaft 411 and the other end face is provided with a hexagonal hole 412. The rotating shaft 411 is rotatably connected to the first body 11, and the axial direction of the rotating shaft 411 is the vertical direction. The provided hexagonal hole 412 is used to cooperate with a hexagonal wrench to facilitate driving the gear 41 to rotate. In order to accurately determine the position of the anode support seat 2, a strip-shaped second identifier 421 is further provided on the extending rod, and the second identifier 421 is used to align with the second scale line 134. In order to make the distances between the two anode support seats 2 and the cathode support seat 3 the same, the positions of the two anode support seats 2 can be adjusted with reference to the second scale line 134. In order to make the forces on the anode support seat 2 balanced during the moving process, two sets of driving assemblies 4 are provided and are respectively arranged on the two opposite sides of the two vertical support bodies 13.

[0049] The specific implementation process is as follows: Determine the relative positions between the thruster cathode 6 and the thruster anode 5 according to the test requirements, and then install the thruster cathode 6 and the thruster anode 5 on the cathode support seat 3 and the anode support seat 2 respectively. Subsequently, adjust the positions of the cathode support seat 3 and the anode support seat 2 with reference to the first scale line 133 and the second scale line 134, and after determining the positions, fasten them with bolts to fix the cathode support seat 3 and the anode support seat 2.

[0050] The advantages of this solution are: 1. With reference to the second scale line 134, the two anode support seats 2 can be accurately made symmetrical with respect to the thruster cathode 6, and at the same time, the distances between the two anode support seats 2 can be accurately adjusted.

[0051] 2. By setting the cathode support seat 3 to be in an adjustable position state, the position change situation between the thruster cathode 6 and the thruster anode 5 is enriched in the vertical direction, which is beneficial to testing the best position relationship. With reference to the first scale line 133, the position of the cathode support seat 3 can be accurately determined.

[0052] 3. During the position adjustment process of the anode support seat 2 and the cathode support seat 3, both are fastened with bolts, so it has the characteristics of easy manual operation, simple structure and low cost; the first waist-shaped hole 131 and the third waist-shaped hole 22 make the selectable fastening positions linear during the position adjustment process.

[0053] 4. For the hexagon hole 412 added to the gear 41, the driving process of the synchronous reverse movement of the two anode support seats 2 is very easy to operate.

[0054] 5. Through the observation of the second kidney-shaped hole 132, it can be ensured that the cathode support seat 3 can be aligned with the first scale line 133. Otherwise, other structures need to be added to the vertical connecting part 32 of the cathode support seat 3 to align with the first scale line 133. Therefore, this simplifies the processing steps and the amount of material cut for the cathode support seat 3. The above description of the specific exemplary embodiments of the present invention is for the purpose of illustration and exemplification. These descriptions are not intended to limit the present invention to the precise form disclosed, and obviously, many changes and variations can be made according to the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical applications, so that those skilled in the art can implement and utilize various different exemplary embodiments of the present invention, as well as various different selections and changes. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A double-anode Hall electric thruster test device, characterized in that Base, cathode support seat, two anode support seats and drive assembly; The base includes a first main body and a vertical support body, and the vertical support body is provided with a second scale line marked in the transverse direction; The anode support seat and the cathode support seat are respectively used for installing a thruster anode and a thruster cathode; The two anode support seats are slidably connected to the first main body so that the two anode support seats can move transversely, and the two anode support seats are located on the transverse two sides of the cathode support seat; The drive assembly is used to drive the two anode support seats to move synchronously and in opposite directions. The drive assembly includes two extending rods, and the two extending rods are respectively connected to the two anode support seats. The extending rods are provided with second identifiers for aligning with the second scale line; The anode support seat includes a third main body, and the third main body is provided with a third waist-shaped hole. The length direction of the third waist-shaped hole is transverse, and the third waist-shaped hole is used for passing through screws to fasten the anode support seat.

2. The double-anode Hall electric thruster test device according to claim 1, characterized in that The drive assembly includes a gear, and the two racks extend out in a staggered manner towards each other; teeth are respectively arranged on the two extending rods in an array to form racks, and the teeth of the two extending rods are arranged oppositely and simultaneously engage with the gear.

3. The double-anode Hall electric thruster test device according to claim 2, characterized in that, A rotating shaft is provided on one end face of the gear, and the rotating shaft is rotatably connected to the first main body.

4. The double-anode Hall electric thruster test device according to claim 3, wherein A hexagonal hole is provided on the other end face of the gear.

5. The double-anode Hall electric thruster test device according to claim 1, characterized in that The vertical support body is provided with a first waist-shaped hole and a second waist-shaped hole; the length directions of the first waist-shaped hole and the second waist-shaped hole are both vertical; the first waist-shaped hole is used for passing through bolts to fasten the cathode support seat; a first scale line is provided on the surface of the vertical support body facing away from the cathode support seat, and the first scale line is marked along the second waist-shaped hole; The cathode support seat is provided with a second identifier body opposite to the second waist-shaped hole, and the second identifier body is used for aligning with the first scale line to determine the elevation position of the cathode support seat.

6. The double-anode Hall electric thruster test device according to claim 5, characterized in that, The first indication is set in a prominent color.

7. The double-anode Hall electric thruster test device according to claim 1, wherein The vertical support body is provided with a first waist-shaped hole and a second waist-shaped hole; the length directions of the first waist-shaped hole and the second waist-shaped hole are both vertical; the first waist-shaped hole is used for passing through bolts to fasten the cathode support seat; a first scale line is provided on the surface of the vertical support body facing away from the cathode support seat, and the first scale line is marked along the second waist-shaped hole; The cathode support seat is provided with a polygonal notch, and the polygonal notch forms a horizontal edge, and the edge is used for aligning with the first scale line to determine the elevation position of the cathode support seat.

8. The double-anode Hall electric thruster test device according to claim 1, characterized in that, There are two vertical support bodies arranged vertically.

9. The double-anode Hall electric thruster test device according to claim 8, characterized in that There are two sets of drive assemblies and they are respectively arranged on the opposite sides of the two vertical support bodies.

10. The double-anode Hall electric thruster test device according to claim 8, characterized in that, The cathode support seat includes a second main body and two vertical connecting parts. The second main body is used for installing a thruster cathode. The two vertical connecting parts are located at the longitudinal connection section of the second main body, and the two vertical connecting parts respectively fit the two vertical support bodies.

Images