Combustion chamber shell high-temperature gradient testing device
By designing a device that allows for adjustable nozzle position and rotation of the combustion chamber housing, the problem of inconvenient operation of existing testing devices has been solved, achieving flexibility and convenience in high-temperature gradient testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI SHENGFENG INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-19
AI Technical Summary
The existing combustion chamber shell testing device cannot rotate and adjust the nozzle position during the test, which requires replacing multiple shells for testing, making the operation inconvenient.
A device comprising a base, housing, motor, elliptical frame, sliding frame, air pump, nozzle, clamping plate, and turntable is designed. The motor drives the turntable and elliptical frame, causing the sliding frame and nozzle to move, thereby achieving nozzle position adjustment and combustion chamber housing rotation. Combined with a central clamping plate and anti-slip block to hold the housing, it can adapt to different specifications.
It enables convenient adjustment of nozzle position and rotation of housing during testing, improving the flexibility and convenience of testing, and adapting to high temperature gradient testing on different surfaces.
Smart Images

Figure CN224263167U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of combustion chamber shell testing, and in particular to a high temperature gradient testing device for combustion chamber shells. Background Technology
[0002] The combustion chamber is a key component in equipment such as internal combustion engines, jet engines, rocket engines, and industrial boilers. Its main function is to mix and ignite fuel and air under controlled conditions to produce high-temperature and high-pressure combustion products, which are then converted into mechanical energy or thrust. The combustion chamber shell is the outer structure of the combustion chamber, and its main function is to bear and surround the high-temperature and high-pressure environment inside the combustion chamber, while protecting other components of the engine from the extreme conditions of the combustion chamber.
[0003] Existing methods for testing combustion chamber housings typically involve placing the housing in a high-temperature testing device. However, this method prevents the housing from rotating or adjusting the nozzle position during testing, resulting in the entire housing being subjected to the same temperature. This necessitates replacing multiple housings for testing, making the process inconvenient.
[0004] Therefore, it is necessary to design a combustion chamber shell high temperature gradient testing device that can adjust the position of the nozzle and rotate the combustion chamber shell during the testing process, so as to facilitate switching between different surfaces of the combustion chamber shell for testing and improve the ease of use. Utility Model Content
[0005] To overcome the inconvenience of not being able to rotate the combustion chamber shell or adjust the nozzle position during testing, which results in the entire combustion chamber shell being at the same temperature and requires replacing multiple combustion chamber shells for testing, this utility model provides a combustion chamber shell high temperature gradient testing device that allows for adjusting the nozzle position while rotating the combustion chamber shell during testing, facilitating switching between different sides of the combustion chamber shell for testing and improving ease of use.
[0006] Technical solution: A high-temperature gradient testing device for combustion chamber shell, comprising a base, a housing, a motor, an elliptical frame, a sliding frame, an air pump, a nozzle, a clamping plate, and a turntable. The housing is connected to the upper part of the base, the motor is connected to the middle of the base, the elliptical frame is connected to the output shaft of the motor, the sliding frame is slidably connected to the right side of the base, the air pump is connected to the upper right side of the sliding frame, the nozzle is connected to the left side of the sliding frame and the nozzle is connected to the air pump, the clamping plate is connected to the upper side of the lower part of the sliding frame and is slidably connected to the elliptical frame, and a turntable is connected to the output shaft of the motor and the turntable is located on the upper side of the elliptical frame.
[0007] Furthermore, the sliding frame is L-shaped.
[0008] Furthermore, it also includes springs and central clamps. Multiple central clamps are slidably connected to the turntable, and each central clamp is connected to the turntable by two springs.
[0009] Furthermore, it also includes anti-slip blocks, with anti-slip blocks connected to the central clamp plate.
[0010] Furthermore, it also includes a side cover, which is rotatably connected to the left side of the box.
[0011] Furthermore, a handle is provided on the front left side of the side cover.
[0012] The beneficial effects are: 1. This utility model rotates the combustion chamber shell, causing the sliding frame to rotate and move, which in turn moves the air pump and nozzle, thereby adjusting the distance between the flame and the combustion chamber shell to conduct high temperature gradient testing. This allows the position of the nozzle to be adjusted while the combustion chamber shell rotates during the test, making it easier to switch between different sides of the combustion chamber shell for testing and improving the convenience of use.
[0013] 2. This utility model uses a combustion chamber shell that is clamped between a central clamping plate and an anti-slip block, causing the central clamping plate and the anti-slip block to move inward, stretching the spring, and thus clamping the combustion chamber shell. This allows for the clamping and fixing of the combustion chamber shell, making it easier to adapt to the testing of combustion chamber shells of different specifications and improving the flexibility of using this device. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a partial three-dimensional cross-sectional view of the present invention.
[0016] Figure 3 This is a three-dimensional structural diagram of the combustion component of this utility model.
[0017] Figure 4 This is a three-dimensional structural diagram of the adjustment component of this utility model.
[0018] Figure 5 This is a three-dimensional structural diagram of the support component of this utility model.
[0019] Reference numerals: 1_base, 2_box body, 3_motor, 4_elliptical frame, 5_sliding frame, 6_air pump, 7_nozzle, 8_plate, 9_turntable, 10_spring, 11_central clamping plate, 12_anti-slip block, 13_side cover. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] A combustion chamber shell high temperature gradient testing device, such as Figures 1-5 As shown, the device includes a base 1, a housing 2, a motor 3, an oval frame 4, a sliding frame 5, an air pump 6, a nozzle 7, a clamping plate 8, a turntable 9, a spring 10, a central clamping plate 11, an anti-slip block 12, and a side cover 13. The housing 2 is connected to the upper part of the base 1, the motor 3 is connected to the middle of the base 1, the oval frame 4 is connected to the output shaft of the motor 3, the sliding frame 5 is slidably connected to the right side of the base 1, the sliding frame 5 is L-shaped, the air pump 6 is connected to the upper right side of the sliding frame 5, and the nozzle 7 is connected to the left side of the sliding frame 5. The nozzle 7 is connected to the air pump 6. A clamping plate 8 is connected to the upper part of the lower part of the sliding frame 5. The clamping plate 8 is slidably connected to the elliptical frame 4. A turntable 9 is connected to the output shaft of the motor 3. The turntable 9 is located on the upper part of the elliptical frame 4. Four central clamping plates 11 are slidably connected to the turntable 9. Two springs 10 are connected between each central clamping plate 11 and the turntable 9. Anti-slip blocks 12 are connected to each central clamping plate 11 to prevent slippage. A side cover 13 is rotatably connected to the left side of the housing 2 to facilitate the replacement of the combustion chamber shell. A handle is provided on the front left side of the side cover 13 to facilitate pulling the side cover 13 to open.
[0022] This device can be used when a high-temperature gradient test is required on the combustion chamber shell. Bring the device to the testing location, ensuring the base 1 is in contact with the ground. Then, pull the side cover 13 to open, and place the combustion chamber shell into the housing 2. The combustion chamber shell will be secured between the central clamping plate 11 and the anti-slip block 12, causing the central clamping plate 11 and anti-slip block 12 to move inwards, stretching the spring 10 and clamping the combustion chamber shell. This secure clamping allows for easy adaptation to different specifications of combustion chamber shells, increasing the flexibility of the device. Then, turn the handle to close the side cover 13. Connect the gas delivery equipment to the gas pump 6 via the connecting pipe, and start the gas pump 6. The gas will then be sprayed from the nozzle 7 to test the combustion chamber shell. During the test, motor 3 is started, which drives the elliptical frame 4 and turntable 9 to rotate, thereby causing the combustion chamber shell to rotate. This causes the sliding frame 5 to rotate along the elliptical frame 4, and thus the sliding frame 5 to move. The sliding frame 5 is L-shaped, which causes the air pump 6 and nozzle 7 to move, thereby adjusting the distance between the flame and the combustion chamber shell for high-temperature gradient testing. This allows the position of the nozzle 7 to be adjusted while the combustion chamber shell rotates during the test, making it easy to switch between different sides of the combustion chamber shell for testing and improving ease of use. After the test is completed, the air pump 6 and motor 3 are turned off. Then, the side cover 13 is opened by turning the handle, and the combustion chamber shell is taken out, so that the combustion chamber shell is separated from the central clamp 11 and anti-slip block 12. The spring 10 returns, and the central clamp 11 and anti-slip block 12 move back to their original positions.
[0023] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A combustion chamber shell high-temperature gradient testing device, characterized in that: It includes a base (1), a housing (2), a motor (3), an elliptical frame (4), a sliding frame (5), an air pump (6), a nozzle (7), a clamping plate (8), and a turntable (9). The housing (2) is connected to the upper part of the base (1), the motor (3) is connected to the middle part of the base (1), the elliptical frame (4) is connected to the output shaft of the motor (3), the sliding frame (5) is slidably connected to the right side of the base (1), the air pump (6) is connected to the upper right side of the sliding frame (5), the nozzle (7) is connected to the left side of the sliding frame (5), the nozzle (7) is connected to the air pump (6), the clamping plate (8) is connected to the upper side of the lower part of the sliding frame (5), the clamping plate (8) is slidably connected to the elliptical frame (4), and the turntable (9) is connected to the output shaft of the motor (3). The turntable (9) is located on the upper side of the elliptical frame (4).
2. The combustion chamber shell high temperature gradient testing device as described in claim 1, characterized in that: The sliding frame (5) is L-shaped.
3. The combustion chamber shell high temperature gradient testing device as described in claim 2, characterized in that: It also includes springs (10) and central clamps (11). Multiple central clamps (11) are slidably connected on the turntable (9), and each central clamp (11) is connected to the turntable (9) by two springs (10).
4. The combustion chamber shell high temperature gradient testing device as described in claim 3, characterized in that: It also includes anti-slip blocks (12), and anti-slip blocks (12) are connected to the central clamping plate (11).
5. The combustion chamber shell high temperature gradient testing device as described in claim 4, characterized in that: It also includes a side cover (13), and the left side of the box (2) is rotatably connected to the side cover (13).
6. The combustion chamber shell high temperature gradient testing device as described in claim 5, characterized in that: A handle is provided on the front left side of the side cover (13).