CN216608512U

CN216608512U - Solid rocket engine heat insulation layer removes frock

Info

Publication number: CN216608512U
Application number: CN202123203319.9U
Authority: CN
Inventors: 罗志发; 陈泽咏
Original assignee: Xi'an Fangtong Intelligent Equipment Co ltd
Current assignee: Xi'an Fangtong Intelligent Equipment Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-05-27
Anticipated expiration: 2031-12-17

Abstract

The utility model discloses a tool for removing a heat insulation layer of a solid rocket engine, which relates to the technical field of removing the heat insulation layer of the solid rocket engine and solves the problems of poor effect, time consumption and labor consumption of the traditional heat insulation layer removing mode; the utility model can effectively improve the cleaning efficiency, ensure that the workshop environment is more environment-friendly and reduce the waste of human resources.

Description

Solid rocket engine heat insulation layer removes frock

Technical Field

The utility model relates to the technical field of production processes, in particular to the technical field of cleaning of a heat insulating layer of a solid rocket engine.

Background

The solid rocket engine heat insulation layer is an ablation-resistant heat insulation layer which is adhered to the inner wall of the solid rocket engine combustion chamber shell and has a certain thickness. The solid engine insulation layer serves as a liner of the combustion chamber and protects the engine casing from overheating and weakening. And the composite shell also plays a role in air tightness. The general heat insulation layer is made of materials such as nitrile rubber, ethylene propylene diene monomer rubber and silicon rubber, the ablation-resistant filler of the outer reinforcement body is vulcanized and pressed into a sheet shape, and then the sheet shape is firmly adhered to the engine shell in a colloid adhesion mode.

In some test stages, it is necessary to reuse the recovered engine casing, or to clean the insulation layer and prepare it again for various reasons, for cost saving and the like. The process of removing the heat insulation layer generally adopts a process of directly turning and removing by a lathe, the process needs to adopt a gem cutter to process, and in consideration of the expensive cost and deformation of the engine shell, in order to ensure that the engine shell is not damaged by the cutter, partial processing allowance is usually left to be manually removed. Due to the adhesive effect of the primer, it is almost impossible to remove the part of the heat insulating layer by hand, so that an auxiliary tool is needed, and a polishing machine is usually used for clamping a grinding cloth wheel or a steel wire wheel for auxiliary removal. In the limited space in the engine shell, the cleaning work is very difficult and low in efficiency, and meanwhile, a large amount of dust is generated in the cleaning process, so that the cleaning machine is not environment-friendly and is not beneficial to the physical health of workers.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: the solid rocket engine heat insulation layer cleaning tool solves the problems that a traditional heat insulation layer cleaning mode is poor in effect and time-consuming and labor-consuming, and aims to solve the technical problems, so that cleaning efficiency is effectively improved, a workshop environment is more environment-friendly, and waste of human resources is reduced.

The utility model specifically adopts the following technical scheme for realizing the purpose:

the utility model provides a frock is clear away to solid rocket engine heat insulation layer, includes base and engine housing, the parallel is equipped with twice linear guide on the base, the last removal bottom plate that is equipped with of linear guide, linear guide with be equipped with drive arrangement between the removal bottom plate, be equipped with two rows of synchronizing wheels on the removal bottom plate, be equipped with on the removal bottom plate and be used for the drive the servo motor of synchronizing wheel is equipped with the hold-in range between every synchronizing wheel to the symmetry setting, engine housing place in on the hold-in range, the one end of base is equipped with the mounting bracket, be equipped with on the mounting bracket and extend to the extension arm of engine housing department, be connected with the burnishing machine on the extension arm, one side of base still is equipped with dust collector.

Through the scheme, a moving bottom plate capable of sliding along a linear guide rail is arranged on a base, two rows of synchronizing wheels are arranged on the sliding bottom plate, so that an engine shell can linearly move along the linear guide rail and also can rotate along the self circumferential direction under the action of the synchronizing wheels, in order to increase friction and make the whole device more stable, a synchronous belt is also arranged between each pair of symmetrically arranged synchronizing wheels, when a polishing machine rotates at a high speed, the engine shell firstly rotates along the self circumferential direction under the action of the synchronizing wheels, so that the residual heat insulation layer on the engine shell can be removed, a dust removal device is synchronously started to suck dust, the aim of environmental protection is fulfilled, after one-circle removal work is finished, the engine shell linearly moves for a certain distance along the linear guide rail under the driving of a driving device, the next-circle removal work is started, and the steps are repeated until the removal work is finished, thereby improving the cleaning efficiency, improving the working environment in the workshop and reducing the waste of human resources.

Furthermore, the extension arm with be equipped with buffer between the burnishing machine, buffer is including fixing straining screw on the burnishing machine, be equipped with in the extension arm and hold straining screw's holding tank, straining screw's top is located in the holding tank, straining screw's top with be equipped with straining spring between the notch of holding tank.

Through the scheme, a plurality of tightening screws are fixedly arranged on the polishing machine, the tops of the tightening screws are arranged in the accommodating groove in the extension arm, the tightening springs are arranged between the tops of the tightening screws and the notch of the accommodating groove, certain space is reserved between the tightening screws and the groove bottom of the accommodating groove, when the polishing machine works, the distance between the polishing machine and the inner wall of the engine shell is guaranteed to be within a certain range, and the phenomenon that the distance between an abrasive cloth wheel on the polishing machine and the inner wall of the engine shell is too close or too far to affect the cleaning operation due to other objective factors is avoided.

Further, the tank bottom of holding tank is equipped with the PU gasket.

Through above-mentioned scheme, when the burnishing machine makes lag screw extrude in to the holding tank because of external force influence, avoid the tank bottom that directly touches the holding tank to produce violent collision and make the device unstable, influence clear away efficiency.

Furthermore, the driving device comprises a linear motor arranged between the moving bottom plate and the linear guide rail, and the moving bottom plate can move back and forth along the linear guide rail under the driving of the linear motor.

Through the scheme, the linear motor is arranged between the moving bottom plate and the linear guide rail, so that the moving bottom plate is driven to move back and forth on the linear guide rail, the movement is more stable, and the manual operation is effectively released.

Furthermore, the dust removing device comprises a collecting box arranged on one side of the base, the collecting box is connected with an air suction pipe extending to the position of the shell of the engine, and a dust suction fan is arranged in the air suction pipe.

Through above-mentioned scheme, rotate through the dust absorption fan in the suction pipe, will clear away the dust that the in-process produced and inhale to the collection box in to improve the environment in the operation room, avoid operating personnel to inhale the dust and influence healthy.

Furthermore, the collecting box is provided with a scale display groove.

Through the scheme, the scale display groove is arranged, so that operators can visually see the condition of dust collected in the collecting box, and timely cleaning is facilitated.

The utility model has the following beneficial effects:

1. the utility model has simple structure and convenient operation, the linear guide rail and the moving bottom plate are arranged on the base to drive the engine shell to move back and forth, and then the synchronous wheel drives the engine shell to rotate along the circumferential direction of the engine shell, so that the engine shell can be freely adjusted;

2. the utility model has stable structure, two motion modes of the engine shell are realized by the motor, the speed is controllable and adjustable, the speed is more stable and reliable than the prior manual adjustment, and the buffer device is arranged, so that the distance between the polishing machine and the inner wall of the engine shell is effectively ensured to be within a certain range, and the cleaning operation is prevented from being influenced by the too close or too far distance between the abrasive cloth wheel on the polishing machine and the inner wall of the engine shell due to other objective factors;

3. the dust collector is low in cost and environment-friendly to use, parts in the dust collector are common instruments, the cost is low, the dust collector is convenient to replace, the air suction pipe is arranged along with the extension arm, dust ground by the polishing machine can be directly sucked by the air suction pipe and stored in the collecting box, and therefore the environment in an operation room is effectively improved, and the dust is prevented from affecting the health of operators.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the structure of the buffer device of the present invention.

Reference numerals: 10. a base; 11. an engine housing; 12. a linear guide rail; 13. moving the base plate; 14. a synchronizing wheel; 141. a synchronous belt; 15. a servo motor; 16. a mounting frame; 17. an extension arm; 18. polishing the machine; 19. tightening the screw; 20. accommodating grooves; 21. tensioning the spring; 22. a PU gasket; 23. a collection box; 24. an air intake duct; 25. a linear motor; 26. the scale shows the groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1, the present embodiment provides a tool for removing a thermal insulation layer of a solid rocket engine, comprising a base 10 disposed in an operating room and used for accommodating an engine casing 11, two linear guide rails 12 disposed on the base 10 in parallel, a moving bottom plate 13 disposed on the linear guide rails 12, linear motors 25 symmetrically disposed at the bottom of the moving bottom plate 13 and used for driving the moving bottom plate 13 to move on the linear guide rails 12, wherein, two rows of synchronizing wheels 14 are arranged on the movable bottom plate 13, a synchronous belt 141 is arranged between each pair of symmetrically arranged synchronizing wheels 14, for placing the engine shell 11, and a servo motor 15 for driving the synchronous wheel 14 is arranged on the movable bottom plate 13, so as to control the synchronous wheel 14 on the same side to rotate, so that the engine housing 11 can move linearly along the linear guide rail 12 under the driving action of the linear motor 25, and can also rotate along the circumferential direction under the action of the synchronous wheel 14 driven by the servo motor 15.

Referring to fig. 1, a mounting frame 16 is provided at one end of a base 10, an extension arm 17 extending to an engine housing 11 is installed on the mounting frame 16, a polishing machine 18 is connected to the extension arm 17, when the engine housing 11 starts to move linearly or circumferentially, the polishing machine 18 can remove the heat insulation layer in the engine housing 11 in all directions, in order to take environmental protection into consideration during the removal process, a dust removing device is further provided at one side of the base 10, the dust removing device comprises a collecting box 23 and an air suction pipe 24, the air suction pipe 24 is connected to the collecting box 23 and extends to the engine housing 11, a dust suction fan is provided in the air suction pipe 24, the dust ground by the polishing machine 18 during operation can be sucked into the collecting box 23, the environment in the operating room is improved, the influence of dust suction on the health of operators is avoided, a scale display groove 26 is further provided on the collecting box 23, the condition of dust collected in the collecting box 23 can be visually seen by an operator, and the dust collecting box is convenient to clean in time.

When the heat insulation layer cleaning machine is used specifically, the engine shell 11 starts to rotate under the driving of the synchronizing wheel 14, meanwhile, the polishing machine 18 and the dust removal device are started, the polishing machine 18 rotates at a high speed, the heat insulation layer on the engine shell 11 is removed, the dust removal device sucks dust generated by the polishing machine 18 into the collection box 23 through the air suction pipe 24, the environment-friendly purpose is achieved, after one circle of cleaning work is completed, the linear motor 25 works, the moving bottom plate 13 is driven to advance for a certain distance, the next circle of heat insulation layer cleaning work is started, and the operation is repeated until the heat insulation layer cleaning work is completed.

Example 2

Referring to fig. 2, a buffer device is arranged between the extension arm 17 and the polishing machine 18, the buffer device comprises a tension screw 19 fixedly installed on the polishing machine 18, the top of the tension screw 19 is arranged in a receiving groove 20 in the extension arm 17, the notch of the receiving groove 20 is smaller than the screw head at the top of the tension screw 19, which can effectively prevent the tension screw 19 from falling off from the receiving groove 20, a tension spring 21 is further arranged between the top of the tension screw 19 and the notch of the receiving groove 20, the length of the tension spring 21 is smaller than the depth of the receiving groove 20, a gasket PU 22 is arranged at the bottom of the receiving groove 20, when the polishing machine 18 has a downward movement tendency as a whole, the tension spring 21 can be pressed against the top of the tension screw 19 to prevent over-extension, when the polishing machine 18 has an upward movement tendency as a whole, the tension spring 21 can tension the top of the tension screw 19 to prevent over-contraction thereof, meanwhile, the PU gasket 22 at the bottom of the accommodating groove 20 can prevent the top of the tightening screw 19 from violently colliding with the bottom of the groove to cause the device to be unstable, so that the polishing machine 18 keeps a relatively stable distance from the inner wall of the engine shell 11, and the stability of the cleaning process is ensured.

Claims

1. The tool for clearing the heat insulation layer of the solid rocket engine is characterized by comprising a base (10) and an engine shell (11), wherein two linear guide rails (12) are arranged on the base (10) in parallel, a moving bottom plate (13) is arranged on each linear guide rail (12), a driving device is arranged between each linear guide rail (12) and the corresponding moving bottom plate (13), two rows of synchronizing wheels (14) are arranged on each moving bottom plate (13), a servo motor (15) used for driving the synchronizing wheels (14) is arranged on each moving bottom plate (13), a synchronous belt (141) is arranged between each pair of symmetrically-arranged synchronizing wheels (14), the engine shell (11) is placed on the synchronous belts (141), a mounting frame (16) is arranged at one end of the base (10), an extension arm (17) extending to the engine shell (11) is arranged on the mounting frame (16), the extension arm (17) is connected with a polishing machine (18), and one side of the base (10) is also provided with a dust removal device.

2. The tool for removing the thermal insulation layer of the solid rocket engine according to claim 1, wherein a buffer device is arranged between the extension arm (17) and the polishing machine (18), the buffer device comprises a tension screw (19) fixed on the polishing machine (18), a receiving groove (20) for receiving the tension screw (19) is arranged in the extension arm (17), the top of the tension screw (19) is arranged in the receiving groove (20), and a tension spring (21) is arranged between the top of the tension screw (19) and a notch of the receiving groove (20).

3. The tool for removing the insulation layer of the solid rocket engine according to claim 2, wherein a PU gasket (22) is arranged at the bottom of the accommodating groove (20).

4. The tool for removing the thermal insulation layer of the solid rocket engine according to claim 1, wherein the driving device comprises a linear motor (25) arranged between the moving baseplate (13) and the linear guide rail (12), and the moving baseplate (13) can move back and forth along the linear guide rail (12) under the driving of the linear motor (25).

5. The tool for removing the thermal insulation layer of the solid rocket engine according to claim 1, wherein the dust removing device comprises a collecting box (23) arranged at one side of the base (10), the collecting box (23) is connected with an air suction pipe (24) extending to the engine shell (11), and a dust suction fan is arranged in the air suction pipe (24).

6. The tool for removing the insulation layer of the solid rocket engine according to claim 5, wherein said collection box (23) is provided with a scale display groove (26).