阅读说明：本技术 嵌套式推进系统的下沉式工装及其构建方法 (Sinking type tool of nested propulsion system and construction method thereof ) 是由 徐亮 朱新波 赵正 王利民 周莉 朱臻皓 罗志国 张则梅 印兴峰 于 2021-08-30 设计创作，主要内容包括：本发明提供了一种嵌套式推进系统的下沉式工装及其构建方法,包括支撑梁、下沉吊箱以及辅助工具篮,所述下沉吊箱在支撑梁上紧固安装有一个或多个,所述下沉吊箱自支撑梁的一侧向另一侧延伸,且所述辅助工具篮设置在下沉吊箱靠近支撑梁的一侧；当进行总装时,所述支撑梁紧固安装在推进系统的敞开口处,所述下沉吊箱探入推进系统内。通过支撑梁和再支撑梁上呈对称设置下沉吊箱配合组成十字梁吊挂式的下沉工装,能够将工作人员送入推进系统内进行设备的上器操作,有助于提高支撑器上推进焊装操作、热控实施操作的有效执行,且有助于减少了下沉吊箱翻转的情况发生,进而有助于提高总装操作的安全性和便捷性。(The invention provides a sinking tool of a nested propulsion system and a construction method thereof, wherein the sinking tool comprises a support beam, sinking hanging boxes and an auxiliary tool basket, one or more sinking hanging boxes are fixedly arranged on the support beam, the sinking hanging boxes extend from one side of the support beam to the other side, and the auxiliary tool basket is arranged on one side of the sinking hanging boxes close to the support beam; when final assembly is performed, the support beam is tightly mounted at the opening of the propulsion system, and the sinking suspension box extends into the propulsion system. Through being the symmetry on a supporting beam and the roof beam again and setting up the hanging box cooperation and form the hanging frock that sinks of cross beam, can send into the staff and carry out the last ware operation of equipment in the advancing system, help improving and impel on the support and weld effective the execution of dress operation, thermal control implementation operation, and help reducing the condition emergence of hanging box upset that sinks, and then help improving the security and the convenience of final assembly operation.)

1. The sinking type tool of the nested propulsion system is characterized by comprising a supporting beam (1), sinking hanging boxes (2) and auxiliary tool baskets (3), wherein one or more sinking hanging boxes (2) are fixedly installed on the supporting beam (1), the sinking hanging boxes (2) extend from one side of the supporting beam (1) to the other side, and the auxiliary tool baskets (3) are arranged on one side, close to the supporting beam (1), of the sinking hanging boxes (2);

when final assembly is carried out, the supporting beam (1) is tightly installed at the opening of the propulsion system, and the sinking suspension box (2) extends into the propulsion system.

2. The submersible tool of the nested propulsion system according to claim 1, wherein the support beam (1) comprises a cross beam, and the number of the submersible lifting boxes (2) is four, and four of the cross beams are symmetrically arranged on one cross beam of each of the submersible lifting boxes.

3. A submersible plant for nested propulsion systems according to claim 1, characterised in that the suspension box is provided with a bar (4).

4. A submersible fixture for nested propulsion systems according to claim 1, characterised in that the support beam (1) is provided with an interface for its secure mounting on the propulsion system.

5. A method of constructing a submersible tool for a nested propulsion system, comprising the submersible tool for a nested propulsion system of any one of claims 1 to 4, the method comprising the steps of:

s1, according to the structural characteristics of the propulsion system, the size of a product, the carding confirmation of the assembly flow of each component, the assembly requirement and the assembly and disassembly state of accessories, completing the analysis of the assembly tool construction form, and selecting a sinking tool;

s2, defining the states of the shape of the sinking space, the distribution of products in the sinking space, the positions of the periphery capable of bearing, the positions capable of being reached by the required operation in the sinking space and the like, and forming the detailed matching of the supporting beam (1), the sinking hanging box (2) and the auxiliary tool basket (3);

and S3, determining the specific size and the safe interval of the hanging box and constructing a tool hoisting scheme according to the operation process.

And S4, assembling the sinking type tool.

6. The method for constructing a sunken tooling of a nested propulsion system as claimed in claim 5, wherein step S1 is performed to determine the form and distribution of the connection interface between the tooling and the propulsion system when analyzing the overall tooling construction form.

7. The method of constructing a submersible tool for a nested propulsion system of claim 5, wherein the assembly process of the components includes alternately performing push welding, thermal control and push cable assembly in step S1.

8. The method for constructing the sinking tool of the nested propulsion system as claimed in claim 5, wherein the sinking space is shaped as a hollow cone cylinder, and the products in the sinking space are distributed in a surrounding manner in step S2.

9. The method for constructing the sunken tooling of the nested propulsion system of claim 5, wherein the lifting scheme of the tooling in step S3 is vertical lifting parking with a truss car.

10. The method for constructing the sunken tooling of the nested propulsion system of claim 5, wherein the step S4: firstly, two cross beams are assembled into a cross beam by adopting a fastener, then four sinking hanging boxes (2) are symmetrically arranged on one cross beam of the cross beam, and then an auxiliary tool basket (3) and a barrier strip are tightly arranged on the sinking hanging boxes (2).

Technical Field

The invention relates to the technical field of satellite assembly auxiliary equipment, in particular to a sunken tool of a nested propulsion system and a construction method thereof.

Background

Propulsion system assembly is an important activity of the satellite AIT process. With the development and progress of science and technology, the final assembly work of the satellite propulsion system is more and more complex, the operations such as pipeline assembly, welding, thermal control coating, wiring implementation and the like need to be carried out in the whole star state, the final assembly operation is strongly coupled with the whole star state, the convenience and the safety of the operation process are very important, and the quality of the propulsion final assembly and the thermal control implementation is also related to the final assembly work.

For the general assembly of the Mars surrounding device nested propulsion system, according to the general assembly operating scheme of the propulsion system, external auxiliary tools such as a ladder, a step and the like are generally adopted, and personnel can reach the installation position of a propulsion product in a cabin body; however, in the technical states of the push storage box in a flat-type configuration, the storage box nested in the bearing cylinder and the like, the installation position of the push product in the center of part cannot be reached by means of a common external auxiliary tool, general assembly personnel need to operate by means of equipment such as a stretching tool, a crane and the like, the operability is poor, and the operation has great risks including the risk of collision and sliding of personnel and the risk of damage of falling products of tools.

The prior Chinese patent with the publication number of CN108372495B discloses a six-degree-of-freedom annular tool and a carrying device for an aerospace cabin, which comprises an outer bracket, an inner gear ring, a pin, a retainer, an inner bracket, a servo motor with a band-type brake function and a reducer, a pair of polish rods, an outer gear, a bearing support, a support frame, an inner hole left-handed thread foot rest, a ball screw, an inner hole right-handed thread foot rest, a movable trolley, a movable platform and a manipulator component, the inner support is provided with a retainer, a servo motor, an outer gear, a bearing support, a support frame and inner hole left and right-handed thread foot seats, a ball screw and a pair of polished rods are arranged between the inner supports, a moving platform is arranged on the ball screw, a manipulator assembly is connected with the moving platform, and the moving trolley is connected with four crisscross supports uniformly distributed on the outer support.

The inventor thinks that tooling needle among the prior art is difficult to satisfy mars surround nested propulsion system's final assembly this application is dedicated to one kind and can improve mars surround nested propulsion system's final assembly security and the frock of convenience of operation.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a sunken tool of a nested propulsion system and a construction method thereof.

The sinking tool of the nested propulsion system comprises a support beam, sinking hanging boxes and auxiliary tool baskets, wherein one or more sinking hanging boxes are fixedly installed on the support beam, the sinking hanging boxes extend from one side of the support beam to the other side, and the auxiliary tool baskets are arranged on one side, close to the support beam, of the sinking hanging boxes; when final assembly is performed, the support beam is tightly mounted at the opening of the propulsion system, and the sinking suspension box extends into the propulsion system.

Preferably, the support beam comprises cross beams, and the four sinking suspension boxes are symmetrically arranged on one cross beam of each cross beam.

Preferably, the hanging box is provided with a barrier strip.

Preferably, the support beam is provided with an interface for fastening it to the propulsion system.

The invention provides a method for constructing a sunken tool of a nested propulsion system, which comprises the sunken tool of the nested propulsion system as claimed in any one of claims 1 to 4, and the method comprises the following steps: s1, according to the structural characteristics of the propulsion system, the size of a product, the carding confirmation of the assembly flow of each component, the assembly requirement and the assembly and disassembly state of accessories, completing the analysis of the assembly tool construction form, and selecting a sinking tool; s2, defining the shapes of the sinking spaces, the distribution of products in the sinking spaces, the positions of the peripheral supportable parts, the positions reachable by the required operation in the sinking spaces and the like, and forming the detailed matching of the supporting beam, the sinking suspension box and the auxiliary tool basket; and S3, determining the specific size and the safe interval of the hanging box and constructing a tool hoisting scheme according to the operation process. And S4, assembling the sinking type tool.

Preferably, in step S1, when analyzing the total assembly fixture construction form, the form and distribution of the connection interface between the fixture and the propulsion system are determined.

Preferably, in step S1, the assembly process of each component includes alternately performing push welding, thermal control assembly, and push cable assembly.

Preferably, in step S2, the sinking space is in the shape of a hollow cone, and the products in the sinking space are distributed in a surrounding manner.

Preferably, in the step S3, the lifting plan is vertically lifted and parked by using a truss car.

Preferably, step S4: firstly, two cross beams are assembled into a cross beam by adopting a fastener, then four sinking hanging boxes are symmetrically arranged on one cross beam of the cross beam, and then an auxiliary tool basket and a barrier strip are tightly arranged on the sinking hanging boxes.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, the sinking suspension boxes are symmetrically arranged on the supporting beam and the secondary supporting beam to form the cross beam suspension type sinking tool in a matching manner, so that workers can be sent into the propulsion system to carry out equipment loading operation, the effective execution of propulsion welding operation and thermal control implementation operation on the supporting device is facilitated to be improved, the overturning situation of the sinking suspension boxes is facilitated to be reduced, and the safety and convenience of final assembly operation are facilitated to be improved;

2. the sinking tool can reach the approximately closed area at the bottom of the center of the propulsion system, so that propulsion welding, thermal control assembly and cable net assembly can be smoothly carried out in the sinking suspension box in an approximately closed state, and the sinking suspension box is based on auxiliary tools, thereby being beneficial to reducing the falling risks of personnel and articles and further being beneficial to improving the safety and controllability of the implementation process of supporting general assembly.

3. The auxiliary tool basket arranged on the sinking suspension box is beneficial to improving the convenience of taking tools by workers for final assembly operation.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of the overall structure of a sink tooling according to the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention primarily embodying the submersion tool within the propulsion system;

fig. 3 is a schematic diagram of an overall structure of a sunken tool and a propulsion system which are mainly embodied by the legal expert.

Shown in the figure:

supporting beam 1 auxiliary tool basket 3

Sinking hanging box 2 barrier strip 4

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.

As shown in fig. 1, the sinking tool of the nested propulsion system provided by the invention comprises a support beam 1, a sinking suspension box 2 and an auxiliary tool basket 3, wherein the sinking suspension box 2 and the auxiliary tool basket 3 are both mounted on the support beam 1. When final assembly is to be carried out, the support beam 1 can be mounted securely at the open mouth of the propulsion system, with the caisson 2 and auxiliary tool basket 3 projecting into the propulsion system.

The embedded propulsion system that this application is aimed at, preferably interior space be hollow cone cylindric, and the nested propulsion system of the installation mode of the product of interior space for surrounding type.

As shown in fig. 1 and 2, the support beam 1 is a cross beam, and the cross beam is formed by fixedly connecting two cross beams through bolts. Four sinking hanging boxes 2 are symmetrically arranged on one cross beam of the cross beam through bolts, and every two sinking hanging boxes 2 are arranged on one cross beam of the cross beam in a pair mode. When final assembly is performed, a worker can sit in the sinking suspension box 2 and enter the propulsion system to perform final assembly operation. In order to improve the safety of workers when entering the propulsion system and carrying out assembly operation, barrier strips 4 are tightly installed on the peripheral sides of the four sinking hanging boxes 2.

Can hold the appurtenance that the staff is used for the assembly operation in appurtenance basket 3, appurtenance basket 3 with sink hanging box 2 one-to-one, and appurtenance basket 3 fastening installation is in the one side that sinks hanging box 2 and is close to a supporting beam 1, and appurtenance basket 3 can be put into with the staff stand both hands in 2 hanging boxes that sink to the distance between appurtenance basket 3 and the hanging box that sink, and do not influence the staff normal activity and be suitable.

As shown in fig. 3, four tool interfaces which can be fastened and connected with the structure at the opening of the propulsion system through bolts are respectively arranged at two ends of two beams of the support beam 1, so that the support beam 1 can be stably installed on the propulsion system, and the safety of final assembly work of workers in the propulsion system is improved.

The assembly tool formed by matching and combining the cross beam, the symmetrical hanging boxes and the like is utilized, the assembly operation convenience and safety of the nested propulsion system are realized, and the working requirements of the propulsion system in the assembly process are met. Therefore, the final assembly operation and the thermal control implementation of the nested propulsion system product can be realized through a safer, more convenient and more practical auxiliary tool, and the requirement of the AIT process is met.

As shown in fig. 1, fig. 2 and fig. 3, according to the method for constructing a sunken tooling of a nested propulsion system provided by the present invention, the sunken tooling of the nested propulsion system includes the following steps:

and S1, finishing the analysis of the construction form of the final assembly tool by referring to the structural characteristics of the propulsion system, the size of the product, the final assembly flow of each component, the final assembly requirement and the assembly and disassembly state of the accessories, and selecting a sinking tool.

The propulsion system is in a hollow conical cylinder shape, the diameter of an upper opening of the hollow conical cylinder is 1800mm, the diameter of a lower opening of the hollow conical cylinder is 3124mm, the height of the hollow conical cylinder is 1600mm, four concentrated bearing points are formed at the top of the hollow conical cylinder, and the static load which can be borne by the four concentrated bearing points is 1300 kg.

The propulsion system has the structural characteristics that: the fittings are symmetrically arranged on the cross partition board in the cone cylinder.

The assembly process of each component is as follows: push welding, thermal control and push cable are alternately carried out.

The product final assembly requires thermal insulation and isolation, and the need for disassembly and replacement of the fittings during the final assembly process needs to be considered.

During analysis of the final assembly tool construction form: the four concentrated bearing points at the top of the hollow cone cylinder are utilized, the hanging bearing is realized in a cross beam mode, a shared interface matched with a special interface on the concentrated bearing points is definitely arranged on the cross beam, and the two can be fixedly connected through bolts.

S2, defining the states of the shape of the sinking space, the distribution of products in the sinking space, the positions capable of being carried at the periphery, the required operation reachable positions in the sinking space and the like, and forming a detailed matching of the supporting beam 1, the sinking suspension box 2 and the auxiliary tool basket 3, wherein the matching scheme is the whole scheme of the sinking tool of the nested propulsion system;

and S3, determining the specific size and the safe interval of the hanging box and constructing a tool hoisting scheme according to the operation process.

On the basis of the implementation operation process of the push welding and thermal control part, the size of the sinking type tool is optimized, the specific size of the hanging box is 240-450 mm, the safety interval is 100mm, and the shared interface of the cross beam is a 4-M10 threaded interface, so that the sinking type general assembly tool suitable for the nested push system is formed. The tool hoisting scheme is vertical hoisting and parking by adopting a truss car.

S4, assembling a sinking tool: firstly, two cross beams are assembled into a cross beam by adopting a fastener, then four sinking hanging boxes 2 are symmetrically arranged on one cross beam of the cross beam, and then an auxiliary tool basket 3 and a barrier strip are tightly arranged on the sinking hanging boxes 2.

The whole is cross beam suspension type's frock that sinks, based on the object for nested formula propulsion system's configuration state, the frock scheme that forms concentrates the bearing point in four places at propulsion system top, utilizes existing sharing interface, reserves special interface at a supporting beam 1 kneck and connects the frock, uses the difference so that the original interface that is used for connecting the product of protection.

The tool can bear a load not greater than 1000kg, is used for loading operation of multiple persons and equipment, and can effectively support the execution of welding operation and thermal control implementation operation; the condition that the sinking hanging box 2 overturns is reduced, and the risk control of the final assembly operation is improved.

The tool can also support an approximately closed area at the bottom of the center of a space direct propulsion system, which can be operated, to smoothly implement propulsion welding, thermal control and cable net assembly in a closed state in the sinking suspension box 2, and can effectively avoid the falling risk of personnel and objects and support the safety and controllability of the final assembly implementation process based on auxiliary tools.

Principle of operation

Firstly, carding confirmation, final assembly requirements and assembly and disassembly states of accessories are carried out according to the structural characteristics of a propulsion system, the size of a product, the final assembly flow of each component, analysis of the construction form of a final assembly tool is completed, and a sinking tool is selected; then, states such as the shape of a sinking space, the distribution of products in the sinking space, the carrying position of the periphery, the position which can be reached by the required operation in the sinking space and the like are determined, and a supporting beam 1, a sinking hanging box 2 and an auxiliary tool basket 3 are formed to be matched in detail; and then, according to the operation process, determining the specific size and the safe interval of the hoisting box and constructing a tool hoisting scheme. Then, assembling the sinking type tool; and finally, vertically hoisting the tool by using the truss vehicle and installing the tool on a propulsion system, and performing final assembly operation by using a worker in the sinking suspension box 2.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.