A vertical assembly and docking device for multi-section engine compartments

Abstract

This invention relates to a vertical assembly and docking device for multi-section engine compartments, comprising a chassis assembly and a rotating assembly. The chassis assembly and the rotating assembly are connected by a pivot shaft. The rotating assembly is used to fix the combustion chamber assembly of the compartment. A reducer is installed on the chassis assembly, which drives the rotating assembly to rotate as a whole, enabling rapid horizontal rotation after vertical assembly for horizontal docking. This invention achieves rapid horizontal rotation and docking of multi-section solid rocket engine compartment assemblies after vertical assembly.

Description

Technical Field

[0001] This invention belongs to the field of engine manufacturing design and relates to a vertical assembly and docking device for multi-section engine compartments. Background Technology

[0002] In recent years, with the continuous development of weapon systems, multi-section engines have become an important development trend in solid rocket engines. A multi-section engine is a solid rocket engine that provides multi-stage pulse propulsion through multiple sections, mainly composed of section assemblies, compartment assemblies, and several directly attached components. Compared with conventional engines, multi-section engines have more parts, a more complex structure, and a more cumbersome and time-consuming assembly process. The key processes in the final assembly of multi-section engines are the assembly of the compartment assemblies and the docking assembly of the sections. During the assembly of multi-section engines, it is not possible to quickly flip the compartment assemblies horizontally after vertical assembly for horizontal docking assembly of the sections.

[0003] Currently, there is no research on vertical assembly and docking devices for multi-section engine modules in the field of solid rocket motor attitude control assembly technology. Chinese patent application publication number CN104627386, "Aircraft Module Docking and Clamping Device," provides a device for docking and clamping aircraft modules, including a clamping mechanism, a base, a fine-tuning mechanism, and a transport mechanism. It uses a horizontal clamping method to achieve module docking, but this horizontal assembly method cannot meet the requirements for vertical assembly of compartment components, resulting in low assembly accuracy. Chinese patent application publication number CN107953106 A, "Small Missile Module Docking Fixture," proposes a small missile module docking fixture, including a base frame, axial rails, a lifting and fine-tuning mechanism, a lateral fine-tuning mechanism, and an axial force-applying mechanism. It also uses a horizontal clamping method to achieve module docking, but this horizontal assembly method cannot meet the requirements for vertical assembly of compartment components. Summary of the Invention

[0004] The technical problem solved by this invention is to overcome the shortcomings of the prior art and propose a vertical assembly and docking device for multi-section engine compartments, so as to realize the rapid horizontal flipping of the multi-section solid rocket engine compartment components after vertical assembly for horizontal docking assembly.

[0005] The solution of the present invention is:

[0006] A vertical assembly and docking device for multi-section engine compartments includes a chassis assembly and a rotating assembly. The chassis assembly and the rotating assembly are connected by a rotating shaft. The rotating assembly is used to fix the combustion chamber assembly of the compartment. A reducer is provided on the chassis assembly. The reducer drives the rotating assembly to rotate as a whole, so as to realize rapid horizontal flipping after vertical assembly for horizontal docking.

[0007] Preferably, the frame assembly includes casters, support frame, positioning pins, bearing seats, and reducer;

[0008] The support frame is a frame structure, including an upper frame, a lower frame, and three intermediate frames connecting the upper and lower frames; four casters are fixed to the four corners of the bottom of the lower frame of the support frame; a bearing seat is installed in the middle of the two opposing frame beams of the upper frame, and the reducer is installed on a support fixed to the upper frame. The two bearing seats and the reducer are collinear, and the reducer is located between the two bearing seats; two positioning pins are provided on the frame beams of the upper frame of the support frame, and a positioning pin is also provided on the intermediate frame located in the middle.

[0009] Preferably, the rotating assembly includes a rotating shaft, a base, a clamp with rollers, and a pull rod;

[0010] A through hole is opened in the middle of the side wall of the base. The rotating shaft passes through the through hole and is welded to the base. Two roller clamps are fixed at both ends of the base respectively. A tie rod is fixed in the middle of one of the roller clamps. The roller clamps are used to hold the combustion chamber assembly of the compartment.

[0011] Preferably, the frame assembly and the rotating assembly are connected by a rotating shaft in the following manner: both ends of the rotating shaft are placed on bearing seats, and the rotating shaft is securely connected to the reducer.

[0012] Preferably, the roller clamp is provided with a roller drive shaft, which is connected to a drive device. When the rotating component is in a horizontal state, the drive device can drive the roller with the roller clamp to move circumferentially to rotate the compartment combustion chamber component.

[0013] Preferably, a reducer is provided at the bottom of the roller clamp, and when the rotating component is in a horizontal state, the reducer is used to adjust the height of the roller clamp.

[0014] A method for applying the aforementioned multi-section engine compartment vertical assembly and docking device includes:

[0015] The two ends of the rotating shaft are placed on the bearing seats, and the rotating shaft is fastened to the reducer. The two positioning pins on the upper frame beam of the support frame are inserted into the corresponding pin holes of the rotating component base to achieve horizontal fixation of the rotating component.

[0016] The section combustion chamber assembly is placed on a roller clamp for clamping, and one end of the section combustion chamber assembly is tightened and limited by a tie rod;

[0017] Loosen the two positioning pins on the upper frame beam of the support frame, turn the reducer handle, the reducer output shaft rotates, and the rotating assembly rotates to a vertical position through the rotating shaft.

[0018] The positioning pin located on the middle frame in the middle of the support frame is inserted into the corresponding pin hole on the base of the rotating component to achieve vertical fixation of the rotating component;

[0019] The tie rod vertically limits the combustion chamber assembly of the compartment;

[0020] After the compartments are vertically connected, loosen the positioning pin on the middle frame of the support frame, turn the reducer handle, and the reducer output shaft will rotate, which will drive the rotating assembly to rotate to a horizontal state through the rotating shaft.

[0021] Two positioning pins on the upper frame beam of the support frame are inserted into the corresponding pin holes on the base of the rotating component to achieve horizontal fixation of the rotating component, and then the compartments are horizontally connected.

[0022] Preferably, when the rotating component is in a horizontal position, the drive device drives the roller with roller clamp to move circumferentially through the roller drive shaft to rotate the compartment combustion chamber component.

[0023] Preferably, when the rotating assembly is in a horizontal position, the reducer at the bottom of the roller clamp operates to adjust the height of the roller clamp.

[0024] The advantages of this invention compared to the prior art are:

[0025] (1) The present invention realizes the flipping of the vertical and horizontal states of the compartment combustion chamber through the rotating component, ensuring that the compartment combustion chamber can be horizontally flipped and docked after vertical assembly, effectively improving the efficiency and safety of the compartment combustion chamber during the flipping process.

[0026] (2) The present invention can be moved as a whole by using universal wheels to move the device and the combustion chamber of the compartment, thereby improving the transfer efficiency;

[0027] (3) The present invention can not only tighten the combustion chamber of the compartment by means of the roller clamp, but also rotate the compartment combustion chamber in a circumferential direction and adjust the height when the compartment combustion chamber is placed horizontally and does not need to be tightened. Attached Figure Description

[0028] Figure 1 This is a three-dimensional schematic diagram of a vertical assembly and docking device for multi-section engine compartments according to the present invention;

[0029] Figure 2 This is a two-dimensional schematic diagram of a vertical assembly and docking device for multi-section engine compartments according to the present invention;

[0030] Figure 3 This is a structural schematic diagram of the frame assembly of the present invention;

[0031] Figure 4 This is a schematic diagram of the rotating assembly of the present invention;

[0032] Figure 5This is a schematic diagram of the horizontal state of the combustion chamber of a multi-section engine compartment vertical assembly and docking device according to the present invention.

[0033] Figure 6 This is a schematic diagram of the vertical assembly and docking device for multi-section engine compartments according to the present invention, showing the combustion chamber of the compartment in a vertical state.

[0034] Figure 7 This is a schematic diagram of the docking steps of a vertical assembly and docking device for multi-section engine compartments according to the present invention;

[0035] Figure 8 This is a schematic diagram showing the assembly and docking of a multi-section solid rocket engine. Detailed Implementation

[0036] The invention will now be further described with reference to the accompanying drawings.

[0037] This invention provides a vertical assembly and docking device for multi-section engine compartments, including a frame assembly 10 and a rotating assembly 20. The frame assembly 10 and the rotating assembly 20 are connected by a rotating shaft. The rotating assembly 20 is used to fix the combustion chamber assembly of the compartment. A reducer is provided on the frame assembly 10. The reducer drives the rotating assembly 20 to rotate as a whole, so as to realize rapid horizontal flipping after vertical assembly for horizontal docking.

[0038] The frame assembly 10 includes casters 101, a support frame 102, locating pins 103, bearing seats 104, and a reducer 105. The support frame 102 is a frame structure, including an upper frame, a lower frame, and three intermediate frames connecting the upper and lower frames. Four casters 101 are fixed to the four corners of the bottom of the lower frame of the support frame 102. A bearing seat 104 is installed in the middle of each of the two opposing frame beams of the upper frame. The reducer 105 is installed on a support fixed to the upper frame, with the two bearing seats and the reducer collinear, and the reducer located between the two bearing seats. Two locating pins are provided on the frame beams of the upper frame of the support frame, and one locating pin is also provided on the intermediate frame located in the middle. The support frame 102 can be moved by the casters 101.

[0039] The rotating assembly 20 includes a rotating shaft 201, a base 202, roller clamps 203, and a pull rod 204. A through hole is formed in the middle of the side wall of the base 202. The rotating shaft 201 passes through the through hole and is welded to the base 202. Two roller clamps 203 are fixed to both ends of the base 202, with the pull rod 204 fixed to the middle of one of the roller clamps. The roller clamps 203 are used to hold the compartment combustion chamber assembly 3. Both ends of the rotating shaft 201 are placed on bearing seats 104, and the rotating shaft 201 is securely connected to the reducer 105. The rotating shaft 201 allows the rotating assembly 20 to rotate. The pull rod 204 restricts the axial movement of the compartment combustion chamber assembly 3. The locating pin 103 keeps the rotating assembly 20 fixed in both horizontal and vertical positions.

[0040] The roller clamp 203 is equipped with a roller drive shaft, which is connected to a drive device. When the rotating assembly 20 is in a horizontal state, the drive device can drive the rollers of the roller clamp to move circumferentially, thereby rotating the combustion chamber assembly. A reducer is provided at the bottom of the roller clamp 203. When the rotating assembly 20 is in a horizontal state, the reducer is used to adjust the height of the roller clamp.

[0041] Figure 1 , Figure 2 These are a three-dimensional schematic diagram and a two-dimensional schematic diagram of a vertical assembly and docking device for multi-section engine compartments according to the present invention. In use, the chassis assembly 10 is connected to the rotating assembly 20 through the bearing seat 104 and the rotating shaft 201. The rotating assembly 20 carries and holds the compartment combustion chamber 3. The rotation of the rotating assembly 20 and the compartment combustion chamber 3 can be achieved by the reducer 105 on the chassis assembly 10.

[0042] Figure 3 This is a schematic diagram of the chassis assembly of the present invention. The chassis assembly 10 is mainly used to drive the rotation of the combustion chamber section and to limit the vertical or horizontal position of the combustion chamber section, thereby achieving position control of the combustion chamber section. In the chassis assembly 10, the casters 101 are fixedly connected to the support frame 102 by screws. The three positioning pins 103 are respectively welded to the middle and upper parts of the support frame 102. The two bearing seats 104 are fixed to the upper part of the support frame 102 by bolts. The reducer 105 is fixed to the upper part of the support frame 102 by bolts. When assembling and docking the combustion chamber section, pushing the support frame 102 can realize the rotation control of the combustion chamber section, and adjusting the positioning pins 103 can realize the limit control of the combustion chamber section 3.

[0043] Figure 4 This is a schematic diagram of the rotating assembly of the present invention. Figure 4As shown, the rotating assembly 20 is mainly used to control the rotation of the combustion chamber during assembly and docking, and to clamp and adjust the height of the combustion chamber using roller clamps. The rotating shaft 201 is welded to the middle of the base 202, and the two roller clamps 203 are fixed to both ends of the base 202 by bolts. The pull rod 204 is fixed to the middle of one roller clamp 203 by bolts. During the assembly and docking of the combustion chamber, the rotation of the rotating assembly 20 and the combustion chamber 3 can be controlled by the reducer 105 on the frame assembly 10. Figure 1 As shown, the tie rod 204 includes two connecting rods and a connecting plate. A connecting rod is fixed to each side of the roller clamp 203, and the ends of the two connecting rods are fixed to each other through the connecting plate.

[0044] Figure 5 , 6 7 is a schematic diagram illustrating the usage steps of a multi-section engine compartment vertical assembly and docking device according to the present invention. For example... Figure 5 As shown, firstly, the compartment combustion chamber assembly 3 is placed on top of the rotating assembly 20. At this time, the rotating assembly is placed horizontally and fixed by the positioning pin 103. Then, the compartment combustion chamber 3 is clamped by the roller clamp 203, and one end of the compartment combustion chamber assembly 3 is tightened and limited by the pull rod 204. Figure 6 As shown, after the combustion chamber 3 is placed horizontally and secured, the horizontal positioning pin 103 is released, and the reducer 105 is operated to slowly rotate the rotating assembly 20 and the combustion chamber 3 simultaneously until they reach a vertical position. They are then fixedly connected using the vertical positioning pin 103, and the combustion chamber 3 is then vertically assembled. Figure 7 As shown, after completing the vertical assembly, the vertical positioning pin 103 is released, and then the rotating assembly 20 and the combustion chamber 3 are slowly rotated and tilted until they reach a horizontal position. They are then fixedly connected using the horizontal positioning pin 103, and the combustion chamber 3 is then horizontally docked. A schematic diagram of the multi-section solid rocket motor assembly and docking is shown below. Figure 8 As shown, after the axial assembly and docking of the combustion chamber section is completed, it is rotated at a certain angle until the pin holes are aligned and then fixed with pins to complete the docking and assembly of the combustion chamber section.

[0045] The horizontal positioning pins refer to the two positioning pins on the upper frame beam of the support frame, while the vertical positioning pins refer to the positioning pins on the middle frame of the support frame.

[0046] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solutions of the present invention by utilizing the methods and techniques disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the protection scope of the technical solutions of the present invention.

Claims

1. A vertical assembly and docking device for multi-section engine compartments, characterized in that: It includes a frame assembly (10) and a rotating assembly (20). The frame assembly (10) and the rotating assembly (20) are connected by a rotating shaft. The rotating assembly (20) is used to fix the combustion chamber assembly. The frame assembly (10) is equipped with a reducer. The reducer drives the rotating assembly (20) to rotate as a whole, so as to realize the rapid horizontal flipping after vertical assembly for horizontal docking. The rotating assembly (20) includes a rotating shaft (201), a base (202), a roller clamp (203), and a pull rod (204). A through hole is opened in the middle of the side wall of the base (202). The rotating shaft (201) passes through the through hole and is welded to the base (202). Two roller clamps (203) are fixed at both ends of the base (202), and the pull rod (204) is fixed in the middle of one of the roller clamps (203). The roller clamp (203) is used to hold the compartment combustion chamber assembly (3).

2. The multi-section engine compartment vertical assembly and docking device according to claim 1, characterized in that: The frame assembly (10) includes casters (101), support frame (102), positioning pins, bearing seats (104), and reducers (105). The support frame (102) is a frame structure, including an upper frame, a lower frame, and three intermediate frames connecting the upper and lower frames; four casters (101) are fixed at the four corners of the bottom of the lower frame of the support frame (102); a bearing seat (104) is installed in the middle of the two opposing frame beams of the upper frame, and a reducer (105) is installed on a support fixed to the upper frame. The two bearing seats and the reducer are collinear, and the reducer is located between the two bearing seats; two positioning pins are provided on the frame beam of the upper frame of the support frame, and a positioning pin is also provided on the intermediate frame located in the middle.

3. The multi-section engine compartment vertical assembly and docking device according to claim 1, characterized in that: The frame assembly (10) and the rotating assembly (20) are connected by a rotating shaft: both ends of the rotating shaft (201) are placed on the bearing seat (104), and the rotating shaft (201) is fastened to the reducer (105).

4. The multi-section engine compartment vertical assembly and docking device according to claim 1, characterized in that: The roller clamp (203) is provided with a roller drive shaft, which is connected to the drive device. When the rotating component (20) is in a horizontal state, the drive device can drive the roller clamp to move circumferentially to rotate the compartment combustion chamber component.

5. A method for applying the vertical assembly and docking device for multi-section engine compartments as described in claim 2, characterized in that, include: The two ends of the rotating shaft (201) are placed on the bearing seat (104), and the rotating shaft (201) is fastened to the reducer (105). The two positioning pins on the upper frame beam of the support frame are inserted into the corresponding pin holes of the rotating component (20) base to achieve horizontal fixation of the rotating component (20). The compartment combustion chamber assembly is placed on a roller clamp (203) for clamping, and one end of the compartment combustion chamber assembly is tightened and limited by a pull rod (204); Loosen the two positioning pins on the upper frame beam of the support frame, turn the reducer handle, the reducer output shaft rotates, and the rotating assembly rotates to a vertical position through the rotating shaft. The positioning pin located on the middle frame in the middle of the support frame is inserted into the corresponding pin hole of the base of the rotating component (20) to achieve vertical fixation of the rotating component (20); The tie rod (204) provides vertical restraint to the combustion chamber assembly of the compartment; After the compartments are vertically connected, loosen the positioning pin on the middle frame of the support frame, turn the reducer handle, and the reducer output shaft will rotate, which will drive the rotating assembly to rotate to a horizontal state through the rotating shaft. Two positioning pins on the upper frame beam of the support frame are inserted into the corresponding pin holes of the base of the rotating component (20) to achieve horizontal fixation of the rotating component (20), and then the compartments are horizontally docked.

6. The application method according to claim 5, characterized in that, When the rotating assembly (20) is in a horizontal state, the drive unit drives the roller with roller clamp to move circumferentially through the roller drive shaft to rotate the compartment combustion chamber assembly.

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