CN219455769U - Combustion chamber pressure test device - Google Patents

Combustion chamber pressure test device Download PDF

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Publication number
CN219455769U
CN219455769U CN202320285082.3U CN202320285082U CN219455769U CN 219455769 U CN219455769 U CN 219455769U CN 202320285082 U CN202320285082 U CN 202320285082U CN 219455769 U CN219455769 U CN 219455769U
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China
Prior art keywords
combustion chamber
pressure test
pressing plates
base
chamber pressure
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Active
Application number
CN202320285082.3U
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Chinese (zh)
Inventor
李夏斌
胡业停
王超敏
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Jiujiang Guoke Yuanda Electromechanical Co ltd
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Jiujiang Guoke Yuanda Electromechanical Co ltd
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Abstract

The utility model discloses a combustion chamber pressure test device, which belongs to the technical field of part pressure tests, wherein two oppositely arranged pressing plates are in a shape of a Chinese character 'ji', a plurality of limit bolts are arranged at the top of the pressing plates, a base is arranged between the two pressing plates, an installation part is arranged at the top of the pressing plates, a bearing part is arranged on the outer wall of the upper base, a through hole which is penetrated up and down is arranged in the center of the bearing part, a taper hole connected with the through hole is arranged on the outer wall of the bearing part, one end of the taper hole is connected with a pressure measuring component, the bearing part is matched with the limit bolts, a piston rod inserted in the through hole is connected with a cylinder at the top of the bearing part through a connecting seat, and the base is matched with the upper base through a combustion chamber, so that the problem of high cost of the combustion chamber pressure test by directly adopting an engine emission test mode is solved.

Description

Combustion chamber pressure test device
Technical Field
The utility model belongs to the technical field of part pressure tests, and particularly relates to a combustion chamber pressure test device.
Background
The rocket engine is composed of parts such as combustion chamber, rocket propellant, spray pipe, baffle plate and ignition device, and is used for generating thrust for rocket to move forward so as to reach the preset range. The rocket engine is an energy conversion device, namely, from the ignition, propellant burns to generate high-temperature and high-pressure fuel gas, and the fuel gas is ejected backwards through a spray pipe to form thrust to push the rocket to advance.
The combustion chamber is a main part of the engine, and is connected with other parts by taking the combustion chamber as a main body to form the engine. The combustion chamber is cylindrical in shape and is threaded at both ends. In normal times, the combustion chamber is a container for storing rocket propellant, when the engine works, the rocket propellant burns in the combustion chamber, the combustion chamber is required to bear high temperature and high pressure of gunpowder gas, and in order to ensure the performance reliability of the combustion chamber, no crack exists in metal parts of the combustion chamber before assembly and test, and the combustion chamber can bear specified pressure.
The existing combustion chamber pressure test method is carried out by directly adopting an engine emission test mode, and has the following problems: 1. the mode is high in cost, and full-elastic processing and test are required: 2. the combustion chamber is difficult to achieve hundred percent inspection: 3. the parts after the test cannot be used continuously: 4. if the tested part is unqualified, potential safety hazards such as explosion and the like can be generated.
Disclosure of Invention
To solve the problems set forth in the background art. The utility model provides a combustion chamber pressure test device which has the characteristics of simplifying the flow, improving the efficiency, being safe and reliable and saving the cost.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the combustion chamber pressure test device comprises two oppositely arranged pressing plates, wherein the pressing plates are in a shape like Chinese character 'ji', and a plurality of limit bolts are arranged at the tops of the pressing plates;
the base is arranged between the two pressing plates, and the top of the base is provided with a mounting part;
the upper seat is provided with a bearing part on the outer wall, a through hole penetrating up and down is arranged in the center of the upper seat, a taper hole connected with the through hole is arranged on the outer wall of the bearing part, one end of the taper hole is connected with a pressure measuring assembly, and the bearing part and the limit bolt work in a matched mode;
the top of the piston rod is connected with a cylinder through a connecting seat;
the base is matched with the upper base through the combustion chamber.
Preferably, the automatic feeding device further comprises a workbench, wherein a mounting plate is arranged in the center of the top of the workbench, the base is mounted in the center of the mounting plate, and the pressing plates are respectively mounted on two sides of the base.
Preferably, the mounting panel angular point position is equipped with the support frame, and a plurality of the support frame top is equipped with mounting platform, the cylinder is installed on the mounting platform, and the output pole of cylinder runs through mounting platform with the connecting seat is connected.
Preferably, an air source processor is arranged on one side of the workbench, and the output end of the air source processor is connected with the air cylinder through an air pipe.
Preferably, a baffle is arranged at the top edge of the workbench, and a water outlet is arranged at any corner of the baffle.
Preferably, the pressure measuring assembly comprises an adapter tube connected with the taper hole, and a water pressure gauge is arranged on the adapter tube.
Preferably, the outer wall of the mounting part and the outer wall of the bottom of the upper seat are respectively provided with a sealing ring attached to the inner wall of the combustion chamber.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the combustion chamber pressure test device, after the combustion chamber is installed in the base and the upper base to be fixedly sealed, water is injected into the combustion chamber from the upper base through hole, then the cylinder is started to press the piston rod, the pressure measurement component is used for reading the bearing pressure value of the combustion chamber to detect whether the combustion chamber is qualified or not, the operation is simple, the time is short, the safety is strong, the test can be completed only by two people operating for about five minutes, a great amount of time and labor and material costs are saved compared with an engine emission test, and potential safety hazards such as explosion are avoided when the pressure test is carried out.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic view, partially in section, of the three-dimensional structure of FIG. 1;
FIG. 3 is a schematic view partially in section of an assembly structure of a mounting plate, a base, a combustion chamber, and an upper seat;
in the figure: 1. a work table; 2. a mounting plate; 3. a support frame; 4. a cylinder; 5. a pressure measurement assembly; 6. a pressing plate; 7. an air source processor; 8. a limit bolt; 9. a piston rod; 10. a connecting seat; 11. an output lever; 12. a base; 13. a combustion chamber; 14. an upper seat; 501. a transfer tube; 502. and a water pressure gauge.
Description of the embodiments
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, the present utility model provides the following technical solutions: the combustion chamber pressure test device comprises two oppositely arranged pressing plates 6, wherein the pressing plates are 7-shaped, and a plurality of limit bolts 8 are arranged at the tops of the pressing plates;
a base 12 provided between the two pressing plates 6, and having a mounting portion at the top;
the upper seat 14 is provided with a bearing part on the outer wall, a through hole penetrating up and down is arranged in the center, a taper hole connected with the through hole is arranged on the outer wall of the bearing part, one end of the taper hole is connected with the pressure measuring component 5, and the bearing part is matched with the limit bolt 8 for working;
the top of the piston rod 9 inserted in the through hole is connected with the air cylinder 4 through a connecting seat 10;
the base 12 cooperates with the upper seat 14 through the combustion chamber 13.
Specifically, still include workstation 1, workstation 1 top central authorities are provided with mounting panel 2, and base 12 installs at mounting panel 2 central authorities, and base 12 both sides are installed respectively to clamp plate 6.
Specifically, mounting panel 2 angular point position is equipped with support frame 3, and a plurality of support frames 3 tops are equipped with mounting platform, and cylinder 4 installs on mounting platform, and the output rod 11 of cylinder 4 runs through mounting platform and is connected with connecting seat 10, has guaranteed just the support to the cylinder.
Specifically, workstation 1 one side is equipped with air source treater 7, and air source treater 7 output is connected with cylinder 4 through the trachea, wherein is equipped with the moisturizing core on the cylinder 4, and the trachea is connected with the moisturizing core, still is equipped with the governing valve on the trachea for adjust atmospheric pressure.
Specifically, the top edge of the workbench 1 is provided with a baffle, and any corner of the baffle is provided with a water outlet, so that water in the combustion chamber 13 can be discharged, and the splash-proof effect is achieved.
Specifically, the pressure measuring assembly 5 comprises an adapter tube 501 connected with the taper hole, and the water pressure gauge 502 is arranged on the adapter tube 501, so that the pressure measuring assembly is tightly connected with the upper seat 14, and the pressure of the combustion chamber 13 during the test can be intuitively displayed.
Specifically, the outer wall of the installation part and the outer wall of the bottom of the upper seat 14 are respectively provided with a sealing ring attached to the inner wall of the combustion chamber 13, so that a better sealing effect is ensured.
By adopting the technical scheme, the combustion chamber pressure test device disclosed by the utility model has the advantages that after the combustion chamber 13 is arranged in the base 12 and the upper base 14 for fixing and sealing, water is injected into the combustion chamber 13 from the through hole of the upper base 14, then the cylinder 4 is started to press the piston rod 9, the pressure measurement assembly 5 is used for reading the bearing pressure value of the combustion chamber 13 to detect whether the combustion chamber is qualified or not, the operation is simple, the time consumption is short, the safety is strong, the test can be completed only by two people operating for about five minutes, a great amount of time and labor and material costs are saved compared with the engine emission test, and potential safety hazards such as explosion-free can be realized when the pressure test is carried out.
The working principle and the using flow of the utility model are as follows: when the combustion chamber 13 is required to be detected, the combustion chamber pressure test device disclosed by the utility model firstly wipes the inner and outer surfaces of the combustion chamber 13, the base 12 and the upper base 14 with clean cloth to ensure smoothness and no dirt, impurities and foreign matters, then the combustion chamber 13 is arranged in the base 12, a nylon cushion block is arranged on the top of the combustion chamber 13, and then a hammer is used for hammering the nylon cushion block to ensure that the combustion chamber 13 is pressed in place, so that good sealing performance of the contact end surfaces of the combustion chamber 13 and the base 12 is ensured, wherein the following is notable: the lower end face of the combustion chamber 13 is tightly attached to the end face of the base 12, the phenomenon that the combustion chamber is askew and cannot be attached in place is avoided, then the upper seat 14 (with the pressure measuring component 5) is pressed into the combustion chamber and tightly pressed, then a nylon cushion block is padded on the top of the upper seat 14, then the nylon cushion block is hammered by a hammer, the upper seat 14 is tightly pressed in place, good tightness is ensured, and the sealing performance is good, wherein the nylon cushion block is notable: the upper end face of the combustion chamber 13 and the lower end face of the upper seat 14 are tightly pressed and attached, the phenomenon that the upper end face is askew and is not attached in place is not obtained, then the base 12 is installed on the mounting plate 2, and the base 12 is ensured to be positioned between two oppositely arranged pressing plates 6, under the output rod 11 of the air cylinder 4, then the bearing part is tightly pressed and limited by tightening the limit bolt 8, then water is injected into the combustion chamber 13 from the through hole of the upper seat 14 until the position is about 25mm away from the upper end face of the upper seat 14, then the piston rod 9 is vertically and slowly placed into the through hole of the upper seat 14, then the piston rod 9 is tightly pressed with a little force, the lowest sealing ring is ensured to be completely pressed into the through hole of the upper seat 14, then the air source processor 7 is started to adjust the air pressure to 0.38Mpa, then the speed regulating valve is opened, the air cylinder is started to start to extrude the piston rod 9, simultaneously, the pointer display numerical value of the water pressure dial 502 on the upper seat 14 is closely observed, the air cylinder 4 is closed for detection to be qualified when 22+/-1 Mpa is reached, after the detection is completed, the air cylinder 4 is started to reset, the output rod 11 is lifted, the limit bolt 8 is loosened, then the combustion chamber 13, the upper seat 12 and the upper seat 14 is slowly is horizontally moved out, finally, the lowest, the upper seat 14 is screwed, the lowest, the piston rod is placed into the upper seat 14, the upper seat is well, and the tool is worth being removed, and the base, and the tool is worth being removed by and the attention, and the tool, and the base, and used. When the hammer is used for disassembling, the outer surface and threads of the combustion chamber are not required to be knocked, hands of people are not required to be accidentally injured, and the process is completed.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A combustion chamber pressure test device, characterized in that: the device comprises two oppositely arranged pressing plates (6), wherein the pressing plates are 7-shaped, and a plurality of limit bolts (8) are arranged at the tops of the pressing plates;
a base (12) which is arranged between the two pressing plates (6) and the top of which is provided with a mounting part;
the upper seat (14) is provided with a bearing part on the outer wall, a through hole penetrating up and down is arranged in the center of the bearing part, a taper hole connected with the through hole is arranged on the outer wall of the bearing part, one end of the taper hole is connected with a pressure measuring assembly (5), and the bearing part and the limit bolt (8) work in a matching way;
the top of the piston rod (9) is connected with the cylinder (4) through a connecting seat (10);
the base (12) is matched with the upper seat (14) through the combustion chamber (13).
2. A combustion chamber pressure test apparatus as set forth in claim 1, wherein: the automatic cutting machine further comprises a workbench (1), wherein the center of the top of the workbench (1) is provided with a mounting plate (2), the base (12) is mounted at the center of the mounting plate (2), and the pressing plates (6) are respectively mounted on two sides of the base (12).
3. A combustion chamber pressure test apparatus as claimed in claim 2, wherein: the mounting board (2) angular point position is equipped with support frame (3), and a plurality of support frame (3) top is equipped with mounting platform, cylinder (4) are installed on the mounting platform, and output rod (11) of cylinder (4) run through mounting platform with connecting seat (10) are connected.
4. A combustion chamber pressure test apparatus as claimed in claim 2, wherein: an air source processor (7) is arranged on one side of the workbench (1), and the output end of the air source processor (7) is connected with the air cylinder (4) through an air pipe.
5. A combustion chamber pressure test apparatus as claimed in claim 2, wherein: the top edge of the workbench (1) is provided with a baffle, and any corner of the baffle is provided with a water outlet.
6. A combustion chamber pressure test apparatus as set forth in claim 1, wherein: the pressure measuring assembly (5) comprises an adapter tube (501) connected with the taper hole, and a water pressure gauge (502) is arranged on the adapter tube (501).
7. A combustion chamber pressure test apparatus as set forth in claim 1, wherein: the outer wall of the installation part and the outer wall of the bottom of the upper seat (14) are respectively provided with a sealing ring which is attached to the inner wall of the combustion chamber (13).
CN202320285082.3U 2023-02-22 2023-02-22 Combustion chamber pressure test device Active CN219455769U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320285082.3U CN219455769U (en) 2023-02-22 2023-02-22 Combustion chamber pressure test device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320285082.3U CN219455769U (en) 2023-02-22 2023-02-22 Combustion chamber pressure test device

Publications (1)

Publication Number Publication Date
CN219455769U true CN219455769U (en) 2023-08-01

Family

ID=87413688

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320285082.3U Active CN219455769U (en) 2023-02-22 2023-02-22 Combustion chamber pressure test device

Country Status (1)

Country Link
CN (1) CN219455769U (en)

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