Ion thruster armored heating wire winding device and method

Abstract

The invention relates to an ion thruster armored heating wire winding device and method. The ion thruster armored heating wire winding device comprises a rotating mechanism, a wire pressing mechanism and a structural frame, and the rotating mechanism comprises a hand wheel, a bearing, a bearing cover, a bearing seat, a mounting flange and a rotating shaft; the wire pressing mechanism comprises a wire pressing stand column, a wire pressing short arm, a short pin shaft, a roller, a wire pressing long arm and a long pin shaft. According to the winding device and method for the armored heating wire of the ion thruster, aiming at the winding process of the armored heating wire, the mode that the rear shell part and the rotating mechanism are combined into a rotary body structure is adopted; by means of the characteristic that the wire pressing mechanism is adjustable, the winding reliability of the armored heating wire is improved, and the risk that the armored heating wire is wound unevenly is avoided; the winding device for the armored heating wire of the ion thruster is simple in structure, low in cost, good in operability and capable of effectively improving the winding quality, yield and efficiency of the armored heating wire.

Description

Technical Field

[0001] The present invention relates to the field of aerospace electric propulsion technology, and more specifically, to an ion thruster armor heating wire winding device and method. Background Art

[0002] As an advanced space propulsion technology, ion electric propulsion technology has been widely used in deep space exploration and other tasks. Active thermal control is a key component of ion thrusters to regulate their own temperature on orbit and ensure stable operation of products on orbit. Armored heating wire is one of the important thermal control materials on ion thrusters, and its winding quality directly affects the thermal control performance of ion thrusters. The existing technology mainly fixes the rear shell parts through a simple device, and realizes the winding of heating wire by rotating around the rear shell while the personnel draw the wire; the winding of heating wire of a single rear shell component takes a long time, and requires 2 to 3 operators to work together, which is a great test of the ability of the operators; during winding, due to the limitations of the simple device, the quality is not easy to guarantee, and it is easy to have problems such as insufficient winding length and resistance value not meeting the requirements, resulting in rework and repair. Therefore, the present application proposes an ion thruster armored heating wire winding device and method, which solves the problems of difficulty in heating wire winding, poor product consistency, and insufficient efficiency under the existing technical conditions. At the same time, it solves the problems of time and labor consumption, effectively shortens the winding time, and improves the winding quality. Summary of the invention

[0003] The embodiments of the present application provide an ion thruster armor heating wire winding device and method. In order to have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary is not a general review, nor is it intended to identify key / important components or describe the scope of protection of these embodiments. Its only purpose is to present some concepts in a simple form as a preface to the detailed description that follows.

[0004] The embodiment of the present application provides an ion thruster armor heating wire winding device, the device comprising: a rotating mechanism, a wire pressing mechanism and a structural frame, wherein:

[0005] The rotating mechanism comprises: a hand wheel, a bearing, a bearing cover, a bearing seat, a mounting flange, and a rotating shaft;

[0006] The bearing cap is mounted on the bearing seat, and the bearing seat is mounted on the structural frame;

[0007] The bearing is installed inside the bearing seat and is limited by the bearing cover;

[0008] The rotating shaft passes through the center of the bearing;

[0009] The hand wheel and the mounting flange are respectively mounted on both sides of the rotating shaft;

[0010] The wire pressing mechanism comprises: a wire pressing column, a short wire pressing arm, a short pin shaft, a roller, a long wire pressing arm, and a long pin shaft;

[0011] The wire pressing column is installed on the structural frame;

[0012] One end of the short wire pressing arm is connected to the wire pressing column, and the other end of the short wire pressing arm is fixed to the long wire pressing arm through the short pin shaft;

[0013] The roller is fixed on the wire pressing long arm through the long pin shaft.

[0014] According to a preferred embodiment, it also includes a rear shell part and an armored heating wire, and the armored heating wire is fixed on the rear shell part.

[0015] According to a preferred embodiment, the mounting flange is a non-standard aluminum alloy flange, and the rear housing part is fixed on the mounting flange.

[0016] According to a preferred embodiment, the handwheel is a cast iron or bakelite part with a handle, and the rotating shaft can drive the rear housing part to rotate by operating the handwheel, thereby realizing the winding of the armor heating wire.

[0017] According to a preferred embodiment, the bearing is an angular contact bearing, which provides stable support and rotational movement for the rotating shaft.

[0018] According to a preferred embodiment, the structure adopted by the device is a rotating body structure, which has high rigidity and stability and can ensure the rotation accuracy and working stability of the rotating shaft.

[0019] According to another aspect of a preferred embodiment, the present application provides a method for winding an ion thruster armor heating wire, the method comprising:

[0020] Step 1, assembling the rotating mechanism and the wire pressing mechanism respectively, and then installing and fixing the rotating mechanism and the wire pressing mechanism on the structural frame respectively;

[0021] Step 2, fixing the rear housing part on the mounting flange;

[0022] Step 3, folding the middle part of the armored heating wire in half, passing it through the roller and fixing it on the fixed boss at the winding starting end of the rear housing part;

[0023] Step 4, operate the hand wheel to realize the winding of the armor heating wire.

[0024] The technical solution provided by the embodiments of the present application may have the following beneficial effects:

[0025] In an embodiment of the present application, an ion thruster armor heating wire winding device comprises: a rotating mechanism, a wire pressing mechanism and a structural frame, wherein: the rotating mechanism comprises: a handwheel, a bearing, a bearing cover, a bearing seat, a mounting flange, and a rotating shaft; the bearing cover is installed on the bearing seat, and the bearing seat is installed on the structural frame; the bearing is installed inside the bearing seat and is limited by the bearing cover; the rotating shaft passes through the center of the bearing; the handwheel and the mounting flange are respectively installed on both sides of the rotating shaft; the wire pressing mechanism comprises: a wire pressing column, a wire pressing short arm, a short pin shaft, a roller, a wire pressing long arm, and a long pin shaft; the wire pressing column is installed on the structural frame; one end of the wire pressing short arm is connected to the wire pressing column, and the other end of the wire pressing short arm is fixed to the wire pressing long arm through the short pin shaft; the roller is fixed to the wire pressing long arm through the long pin shaft. The method for winding the armor heating wire of an ion thruster comprises: step 1, assembling the rotating mechanism and the wire pressing mechanism respectively, and then installing and fixing the rotating mechanism and the wire pressing mechanism on the structural frame respectively; step 2, fixing the rear shell part on the mounting flange; step 3, folding and bending the middle part of the armor heating wire, passing through the roller and fixing it on the fixed boss at the winding starting end of the rear shell part; step 4, operating the hand wheel to realize the winding of the armor heating wire. The device and method for winding the armor heating wire of an ion thruster described in the embodiment of the present application can effectively improve the reliability and qualified rate of the armor heating wire winding, avoid the risk of uneven armor heating wire winding, and the winding device has the characteristics of simple structure, low cost, convenient operation and high winding efficiency.

[0026] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0028] Figure 1 , Figure 2 It is a schematic diagram of the three-dimensional structure of an ion thruster armor heating wire winding device provided in an embodiment of the present application;

[0029] Figure 3 It is a three-dimensional structural schematic diagram of a wire pressing mechanism of an ion thruster armor heating wire winding device provided in an embodiment of the present application;

[0030] Figure 4It is a schematic cross-sectional structure diagram of a rotating mechanism of an ion thruster armor heating wire winding device provided in an embodiment of the present application;

[0031] Figure 5 It is a schematic flow chart of a method for winding an ion thruster armor heating wire provided in an embodiment of the present application.

[0032] Figure numerals: 1-structural frame; 2-wire pressing mechanism; 3-rotating mechanism; 21-wire pressing column; 22-wire pressing short arm; 23-short pin shaft; 24-roller; 25-wire pressing long arm; 26-long pin shaft; 31-handwheel; 32-bearing cover; 33-bearing seat; 34-bearing; 35-rotating shaft; 36-mounting flange. DETAILED DESCRIPTION

[0033] The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them.

[0034] It should be clear that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are only examples of systems and methods consistent with some aspects of the present invention as detailed in the attached claims.

[0036] In the description of the present invention, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previously associated objects are in an "or" relationship.

[0037] The following will be combined with the attached Figure 1 -Attached Figure 5 , a device and method for winding an ion thruster armor heating wire provided in an embodiment of the present application are introduced in detail.

[0038] See also Figure 1 , Figure 2, is a schematic diagram of the three-dimensional structure of an ion thruster armor heating wire winding device provided in the embodiment of the present application. Figure 1 , Figure 2 As shown, an ion thruster armor heating wire winding device described in an embodiment of the present application may include: a rotating mechanism (3), a wire pressing mechanism (2) and a structural frame (1), wherein:

[0039] The rotating mechanism (3) comprises: a hand wheel (31), a bearing (34), a bearing cover (32), a bearing seat (33), a mounting flange (36), and a rotating shaft (35);

[0040] The bearing cover (32) is mounted on the bearing seat (33), and the bearing seat (33) is mounted on the structural frame (1);

[0041] The bearing (34) is installed inside the bearing seat (33) and is limited by the bearing cover (32);

[0042] The rotating shaft (35) passes through the center of the bearing (34);

[0043] The hand wheel (31) and the mounting flange (36) are respectively mounted on both sides of the rotating shaft (35);

[0044] The wire pressing mechanism (2) comprises: a wire pressing column (21), a short wire pressing arm (22), a short pin shaft (23), a roller (24), a long wire pressing arm (25), and a long pin shaft (26);

[0045] The wire pressing column (21) is installed on the structural frame (1);

[0046] One end of the short wire pressing arm (22) is connected to the wire pressing column (21), and the other end of the short wire pressing arm (22) is fixed to the long wire pressing arm (25) via a short pin shaft (23);

[0047] The roller (24) is fixed on the wire pressing long arm (25) through a long pin (26).

[0048] Specifically, in the embodiment of the present application, the structural frame (1) is used for the installation and load-bearing of the device frame; the structure adopted by the device is a rotating body structure, which has high rigidity and stability and can ensure the rotation accuracy and working stability of the rotating shaft (35); the device also includes a rear shell part and an armored heating wire, and the armored heating wire is fixed on the rear shell part; Figure 4As shown, the rotating mechanism (3) mainly includes a handwheel (31), a bearing (34), a bearing cover (32), a bearing seat (33), a mounting flange (36), and a rotating shaft (35), wherein the handwheel (31) is a cast iron or bakelite part with a handle, and the rotating shaft (35) can be driven to rotate the rear housing parts by operating the handwheel (31), thereby realizing the winding of the armored heating wire; the bearing (34) is an angular contact bearing, and in the embodiment of the present application, it includes two angular contact bearings, and the angular contact bearings provide stable support and rotational movement for the rotating shaft (35); the bearing cover (32) and the bearing seat (33) are used to install and fix the bearing (34); the mounting flange (36) is an aluminum alloy non-standard flange, and the rear housing parts are fixed on the mounting flange (36); the handwheel (31), the bearing (34), and the mounting flange (36) are fixed on the rotating shaft (35) by standard parts such as flat keys, screws, and nuts. As shown Figure 3 As shown, the wire pressing mechanism (2) is composed of a wire pressing column (21), a wire pressing short arm (22), a short pin shaft (23), a roller (24), a wire pressing long arm (25), and a long pin shaft (26). The wire pressing mechanism (2) is used to ensure the uniformity of winding, wherein: the wire pressing column (21) is installed on the structural frame (1) and is used to connect the wire pressing arm and the pin shaft; the wire pressing short arm (22) is installed to the screw thread of the wire pressing column (21) through a nut, and the wire pressing short arm (22) and the wire pressing long arm (25) are connected through the short pin shaft (2 3) for fixing, the position of the wire pressing long arm (25) can be adjusted by tightening or loosening the short pin shaft (23), so that the wire pressing long arm (25) can be at different angles, which is convenient for winding the armored heating wire at different positions of the rear shell parts; the roller (24) is installed on the wire pressing long arm (25) through the long pin shaft (26), and the position of the roller (24) on the wire pressing long arm (25) can be adjusted by tightening or loosening the long pin shaft (26), so that the roller (24) is in a rotatable degree.

[0049] The present application embodiment provides a schematic flow chart of a method for winding an ion thruster armor heating wire. Figure 5 As shown, the method of the embodiment of the present application may include the following steps:

[0050] Step 1, assembling the rotating mechanism (3) and the wire pressing mechanism (2) respectively, and then installing and fixing the rotating mechanism (3) and the wire pressing mechanism (2) on the structural frame (1) respectively;

[0051] Step 2, fixing the rear housing part to the mounting flange (36) of the rotating mechanism (3);

[0052] Step 3, adjusting the gap between the wire pressing mechanism (2) and the rear shell part, the gap is controlled to be between 1 mm and 1.5 mm, and the middle part of the armored heating wire is folded and bent, passed through the roller (24) of the wire pressing mechanism (2) and fixed on the fixed boss at the winding starting end of the rear shell part;

[0053] Step 4, operating the hand wheel (31) of the rotating mechanism (3), driving the rear housing part to rotate through the rotating shaft (35) of the rotating mechanism (3), thereby realizing the winding of the armor heating wire.

[0054] The winding method proposed in the embodiment of the present application uses a winding device to simplify the winding work of the armor heating wire. The rear shell parts and the armor heating wire are respectively limited in position by the installation flange (36) and the wire pressing mechanism (2), thereby avoiding a high degree of dependence on manual control in the absence of position limits. The winding efficiency and qualified rate can also be improved by the rotating mechanism (3), thereby reducing the precision requirements for manual work.

[0055] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0056] The above disclosure is only the preferred embodiment of the present application, which certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. An ion thruster armor heating wire winding device, characterized in that: include: Rotating mechanism, wire pressing mechanism and structural frame, wherein: The rotating mechanism comprises: a hand wheel, a bearing, a bearing cover, a bearing seat, a mounting flange, and a rotating shaft; The bearing cap is mounted on the bearing seat, and the bearing seat is mounted on the structural frame; The bearing is installed inside the bearing seat and is limited by the bearing cover; The rotating shaft passes through the center of the bearing; The hand wheel and the mounting flange are respectively mounted on both sides of the rotating shaft; The wire pressing mechanism comprises: a wire pressing column, a short wire pressing arm, a short pin shaft, a roller, a long wire pressing arm, and a long pin shaft; The wire pressing column is installed on the structural frame; One end of the short wire pressing arm is connected to the wire pressing column, and the other end of the short wire pressing arm is fixed to the long wire pressing arm through the short pin shaft; The roller is fixed on the wire pressing long arm through the long pin shaft.

2. The ion thruster armor heating wire winding device according to claim 1, characterized in that: It also includes a rear shell part and an armored heating wire, and the armored heating wire is fixed on the rear shell part.

3. The ion thruster armor heating wire winding device according to claim 2, characterized in that: The mounting flange is a non-standard aluminum alloy flange, and the rear housing part is fixed on the mounting flange.

4. The ion thruster armor heating wire winding device according to claim 2, characterized in that: The hand wheel is a cast iron or bakelite part with a handle. By operating the hand wheel, the rotating shaft can drive the rear housing part to rotate, thereby realizing the winding of the armor heating wire.

5. The ion thruster armor heating wire winding device according to claim 1, characterized in that: The bearing is an angular contact bearing, which provides stable support and rotational motion for the rotating shaft.

6. The ion thruster armor heating wire winding device according to claim 5, characterized in that: The structure adopted by the device is a rotating body structure, which has high rigidity and stability and can ensure the rotation accuracy and working stability of the rotating shaft.

7. A method for winding an ion thruster armor heating wire, characterized in that: The ion thruster armor heating wire winding device according to any one of claims 2 to 6 comprises: Step 1, assembling the rotating mechanism and the wire pressing mechanism respectively, and then installing and fixing the rotating mechanism and the wire pressing mechanism on the structural frame respectively; Step 2, fixing the rear housing part on the mounting flange; Step 3, folding the middle part of the armored heating wire in half, passing it through the roller and fixing it on the fixed boss at the winding starting end of the rear housing part; Step 4, operate the hand wheel to achieve the winding of the armor heating wire.

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