Test bed for testing combustion chamber
By driving the gears and rack systems by the servo motor, the positions of the combustion chamber body and the burner are synchronously adjusted, and the protective cover and observation window are used to solve the problem of temperature increase and observation difficulties of combustion chamber test bench in the prior art, realizing the Safe and efficient combustion chamber testing.
Patent Information
- Application Number
- CN202421391337.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-18
AI Technical Summary
The temperature around the test bench for the existing combustion chamber test rises after ignition, making it difficult for experimenters to quickly observe the test status of the combustion chamber model and there is a risk of flame damage.
A test bench for combustion chamber testing is designed, and the gear and rack system is driven by a servo motor, and the positions of the combustion chamber body and the burner are adjusted simultaneously so that they are always within the semi-packing range of the protective cover and are observed through the observation window. .
The synchronous adjustment and protection of the combustion chamber body and the burner position are realized, ensuring the safety of the testers. At the same time, the status of the combustion chamber model can be observed in real time through the observation window, improving the accuracy and safety of the test.
Smart Images
Figure CN222528939U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of combustion chamber testing, in particular to a test bench for combustion chamber testing. Background Art
[0002] The combustion chamber is one of the most important components in an internal combustion engine. It is responsible for completing the combustion of the mixture and converting fuel into energy to drive the vehicle. Therefore, the design and quality of the combustion chamber have an important impact on the performance, fuel consumption and emissions of the internal combustion engine.
[0003] By conducting tests and collecting data on the combustion chamber test bench, the operating performance and characteristics of the combustion chamber under different conditions, such as fuel consumption rate, dry weight loss, exhaust emissions, etc., can be evaluated, providing strong data support for the optimization design and quality inspection of the combustion chamber. The combustion chamber test bench usually includes a combustion chamber model, a sample holder, an ignition system, and a data acquisition system.
[0004] In the prior art, since the temperature around the test bench will rise significantly after the ignition system is started, when testing the combustion chamber model, the tester needs to stay away from the test bench to prevent the experimenter from being burned by the high temperature, which makes it difficult to quickly observe the state of the combustion chamber model during the test. Summary of the invention
[0005] The purpose of the utility model is to provide a test bench for combustion chamber testing, which can synchronously adjust the positions of the combustion chamber body and the burner. During the adjustment process, the positions of the combustion chamber body and the burner are always within the semi-enclosed range of the protective cover to ensure that the flame does not directly cause harm to the test personnel. At the same time, observation is carried out with the help of an observation window to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a test bench for combustion chamber testing, comprising an operating table and a servo motor fixedly mounted on the front of the operating table, wherein the output end of the servo motor is fixedly connected to two gears through a rotating shaft, the outer sides of the two gears are meshed with two racks, and the two gears are rotatably connected to the inside of the operating table, and the inside and the outside of the operating table are jointly provided with a protective component, and the protective component includes four grooves opened on both sides of the operating table;
[0007] The two grooves on the left side are slidably connected with the same moved first support plate, and the two grooves on the right side are slidably connected with the same moved second support plate, the upper side of the first support plate is overlapped with the combustion chamber body, and the inside of the second support plate is fixedly installed with a burner, and a protective cover is fixedly connected to the upper side of the operating table, and observation windows are provided on the front and rear sides of the protective cover, and the protective cover is half-wrapped around the outside of the burner and the combustion chamber body.
[0008] Preferably, a slider is fixedly connected to the side away from each other of the two racks, the adjacent sliders and racks are slidably connected in the same slide groove, the corresponding two slide grooves are connected to the two grooves, the right sides of the two racks located above are fixedly connected to the left side of the same second support plate, and the left sides of the two racks located below are fixedly connected to the right side of the same first support plate.
[0009] Preferably, a clamping component is provided on the upper side and the interior of the upper side of the first support plate, and the clamping component includes two guide grooves opened inside the upper side of the first support plate, the interiors of the two guide grooves are slidably connected with guide blocks, and the upper sides of the two guide blocks are fixedly connected with moving blocks.
[0010] Preferably, one side of the opposite surfaces of the two moving blocks is half wrapped around the outside of the same combustion chamber body, and the center of the combustion chamber body and the center of the burner are on the same horizontal line.
[0011] Preferably, the opposing surfaces of the two guide blocks are fixedly connected with return springs, and one end of the opposing surfaces of the two return springs is respectively fixedly connected to the adjacent sides inside the two guide grooves.
[0012] Preferably, the right sides of the two moving blocks are fixedly connected with support blocks, and the sides of the support blocks away from each other are provided with inclined surfaces, and the two inclined surfaces are respectively pressed and contacted with the front and rear sides of the inside of the protective cover after movement.
[0013] Preferably, one side of the opposite surfaces of the two support blocks is fixedly connected with a clamping ring, and the two clamping rings are sleeved on the outer side of the combustion chamber body.
[0014] Preferably, a tray is fixedly connected to the upper side of the operating table, the upper side of the tray is arc-shaped, and the combustion chamber body is overlapped on the upper side of the tray.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] 1. The positions of the combustion chamber body and the burner are adjusted by moving the first support plate and the second support plate in opposite directions, and the protective cover is used for protection when changing the position. Since the positions of the combustion chamber body and the burner can be adjusted synchronously, the position of the burner can be adjusted according to the size of the combustion chamber body to ensure the test accuracy of the combustion chamber body. At the same time, during the adjustment process, the positions of the combustion chamber body and the burner are always within the semi-enclosed range of the protective cover to ensure that the flame does not directly harm the test personnel. At the same time, the combustion chamber body can be observed with the help of the observation window;
[0017] 2. By changing the position of the first support plate, the clamping force of the two clamping rings on the combustion chamber body can be adjusted. As the first support plate moves left and right, the gap between the two clamping rings will also be adjusted accordingly, so that the combustion chamber body is always clamped by the clamping ring when it is in the semi-wrapped range of the protective cover, and the combustion chamber body will lose the clamping of the clamping ring after leaving the protective cover, so as to facilitate the replacement of the combustion chamber body. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 This is the overall structural view of the utility model;
[0020] Figure 2 It is a schematic diagram of a half-section structure of the utility model;
[0021] Figure 3 This is a schematic structural diagram of the first support plate of the utility model;
[0022] Figure 4 This is a schematic diagram of the structure of the support block of the utility model;
[0023] Figure 5 It is a schematic diagram of the half-section structure of the first support plate of the utility model.
[0024] Description of reference numerals:
[0025] 1. Operating table; 2. Servo motor; 3. Gear; 4. Rack; 5. Protective component; 51. Slide groove; 52. Slider; 53. Groove; 54. First support plate; 55. Second support plate; 56. Burner; 57. Combustion chamber body; 58. Protective cover; 59. Observation window; 6. Clamping component; 61. Guide groove; 62. Guide block; 63. Reset spring; 64. Moving block; 65. Support block; 66. Retaining ring; 67. Tray. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] The utility model provides a technical solution:
[0028] See also Figures 1 to 5 A test bench for combustion chamber testing, comprising an operating table 1 and a servo motor 2 fixedly mounted on the front of the operating table 1, wherein the output end of the servo motor 2 is fixedly connected to two gears 3 via a rotating shaft, and the outer sides of the two gears 3 are meshed with two racks 4, and the two gears 3 are rotatably connected to the inside of the operating table 1, and a protective component 5 is provided inside and outside the operating table 1, and the protective component 5 includes four grooves 53 opened on both sides of the operating table 1;
[0029] A first support plate 54 that has moved is slidably connected in the two grooves 53 on the left side, and a second support plate 55 that has moved is slidably connected in the two grooves 53 on the right side. A combustion chamber body 57 is overlapped on the upper side of the first support plate 54, and a burner 56 is fixedly installed inside the second support plate 55. A protective cover 58 is fixedly connected on the upper side of the operating table 1, and observation windows 59 are provided on the front and rear sides of the protective cover 58. The protective cover 58 is half-wrapped around the outer sides of the burner 56 and the combustion chamber body 57.
[0030] A slider 52 is fixedly connected to the side of the two racks 4 that are away from each other. The adjacent sliders 52 and racks 4 are slidably connected in the same slide groove 51. The corresponding two slide grooves 51 are connected to the two grooves 53. The right sides of the two upper racks 4 are fixedly connected to the left side of the same second support plate 55. The left sides of the two lower racks 4 are fixedly connected to the right side of the same first support plate 54.
[0031] A clamping member 6 is provided on the upper side and the inner part of the upper side of the first supporting plate 54 .
[0032] By adopting the above technical solution, first, after the combustion chamber body 57 is installed on the top of the first support plate 54 through the clamping component 6, the servo motor 2 is started to drive the two gears 3 to rotate clockwise. After the two gears 3 rotate, the racks 4 at the upper and lower parts of the same gear 3 will move in two directions, so that the upper rack 4 pushes the second support plate 55 to move to the right, and the lower rack 4 drives the first support plate 54 to move to the left. At this time, the combustion chamber body 57 inside the first support plate and the burner 56 inside the second support plate 55 will move with it. Conversely, when the servo motor 2 drives the gear 3 to rotate counterclockwise, the combustion chamber body 57 and the burner 56 will approach each other. When the burner 56 is started, the combustion chamber body 57 The test is about to begin. Since the combustion chamber body 57 and the burner 56 are always half-wrapped by the protective cover 58 above the operating table 1, the flame generated by the burner 56 cannot directly cause harm to the test personnel, and the observation window 59 on the surface of the protective cover 58 can be used to observe the state of the combustion chamber body 57. Since the positions of the combustion chamber body 57 and the burner 56 can be adjusted synchronously, the position of the burner 56 can be adjusted according to the size of the combustion chamber body 57 to ensure the test accuracy of the combustion chamber body 57. At the same time, the positions of the combustion chamber body 57 and the burner 56 are always within the half-wrapped range of the protective cover 58 during the adjustment process to ensure that the flame does not directly cause harm to the test personnel. At the same time, the combustion chamber body 57 can be observed with the help of the observation window 59.
[0033] Specifically, Figure 4 and Figure 5 As shown, the clamping component 6 includes two guide grooves 61 opened inside the upper side of the first support plate 54, the insides of the two guide grooves 61 are slidably connected with guide blocks 62, and the upper sides of the two guide blocks 62 are fixedly connected with moving blocks 64.
[0034] One side of the opposite surfaces of the two moving blocks 64 is half wrapped around the outside of the same combustion chamber body 57, and the center of the combustion chamber body 57 and the center of the burner 56 are on the same horizontal line.
[0035] The opposite surfaces of the two guide blocks 62 are fixedly connected with return springs 63 , and one end of the opposite surfaces of the two return springs 63 is fixedly connected to the adjacent side of the two guide slots 61 .
[0036] The right sides of the two moving blocks 64 are fixedly connected with support blocks 65 . The sides of the support blocks 65 that are away from each other are provided with inclined surfaces. After the two inclined surfaces move, they are pressed and contacted with the front and rear sides of the inside of the protective cover 58 respectively.
[0037] A clamping ring 66 is fixedly connected to one side of the opposite surface of the two support blocks 65 , and the two clamping rings 66 are sleeved on the outer side of the combustion chamber body 57 .
[0038] A tray 67 is fixedly connected to the upper side of the operating table 1 . The upper side of the tray 67 is arc-shaped, and the combustion chamber body 57 overlaps the upper side of the tray 67 .
[0039] By adopting the above technical solution, firstly, when the first support plate 54 moves to the left, the two support blocks 65 on the right side of the two moving blocks 64 will clamp the combustion chamber body 57 through the retaining ring 66. As the support blocks 65 continue to move, when the inclined surface of the support blocks 65 contacts the inner wall of the protective cover 58, the return springs 63 under the two moving blocks 64 will push the guide blocks 62 under the moving blocks 64, so that the gap between the two moving blocks 64 increases. At this time, the two support blocks 65 will also drive the two retaining rings 66 away from the combustion chamber body 57. When the two support blocks 65 are completely separated from the protective cover 58, the combustion chamber body 57 will be cooled down. The combustion chamber body 57 is taken out from above the first support plate 54 and the tray 67, and when the first support plate 54 moves toward the direction of the protective cover 58, the inclined surface of the support block 65 will first enter the interior of the protective cover 58 and contact the inner wall of the protective cover 58. After the two support blocks 65 continue to move, they will gradually be clamped on the outside of the combustion chamber body 57 by the retaining ring 66. As the first support plate 54 moves left and right, the gap between the two retaining rings 66 will also be adjusted accordingly, so that the combustion chamber body 57 is always clamped by the retaining ring 66 when it is in the semi-wrapped range of the protective cover 58, and the combustion chamber body 57 after leaving will lose the clamping of the retaining ring 66, so as to facilitate the replacement of the combustion chamber body 57.
[0040] Working principle: First, start the servo motor 2 to drive the two gears 3 to rotate clockwise, so that the racks 4 at the upper and lower parts of the same gear 3 will move in two directions, the upper rack 4 pushes the second support plate 55 to move to the right, and the lower rack 4 drives the first support plate 54 to move to the left, and finally drives the combustion chamber body 57 and the burner 56 to move synchronously. Conversely, when the servo motor 2 drives the gear 3 to rotate counterclockwise, the combustion chamber body 57 and the burner 56 will approach each other. When the burner 56 is started, the combustion chamber body 57 will start the test, and the combustion chamber body 57 and the burner 56 are always half-wrapped by the protective cover 58 above the operating table 1, and the observation window 59 on the surface of the protective cover 58 It can be used to observe the state of the combustion chamber body 57. When the first support plate 54 moves to the left, after the inclined surface of the support block 65 contacts the inner wall of the protective cover 58, the return spring 63 under the two moving blocks 64 will push the guide block 62 under the moving block 64, so that the gap between the two moving blocks 64 increases. At this time, the two support blocks 65 will also drive the two retaining rings 66 away from the combustion chamber body 57. Conversely, when the first support plate 54 moves toward the direction of the protective cover 58, the inclined surface of the support block 65 will first enter the interior of the protective cover 58 and contact the inner wall of the protective cover 58. After the two support blocks 65 continue to move, the retaining ring 66 is clamped on the outside of the combustion chamber body 57.
[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A test bench for combustion chamber testing, comprising an operating table (1) and a servo motor (2) fixedly mounted on the front of the operating table (1), wherein the output end of the servo motor (2) is fixedly connected to two gears (3) via a rotating shaft, the outer sides of the two gears (3) are meshed with two racks (4), and the two gears (3) are rotatably connected to the inside of the operating table (1), characterized in that: The inside and outside of the operating table (1) are provided with a protective component (5), and the protective component (5) includes four grooves (53) opened on both sides of the operating table (1); The two grooves (53) on the left side are slidably connected to the same first support plate (54) after being moved, and the two grooves (53) on the right side are slidably connected to the same second support plate (55) after being moved, the upper side of the first support plate (54) is overlapped with the combustion chamber body (57), and the inside of the second support plate (55) is fixedly installed with a burner (56), and the upper side of the operating table (1) is fixedly connected to a protective cover (58), and the front and rear sides of the protective cover (58) are provided with observation windows (59), and the protective cover (58) is half-wrapped around the outer sides of the burner (56) and the combustion chamber body (57).
2. A combustion chamber test bench according to claim 1, characterized in that: The two racks (4) are fixedly connected to a slider (52) on the side away from each other, and the adjacent sliders (52) and racks (4) are slidably connected in the same slide groove (51), and the corresponding two slide grooves (51) are connected to the two grooves (53). The right sides of the two racks (4) located at the top are fixedly connected to the left side of the same second support plate (55), and the left sides of the two racks (4) located at the bottom are fixedly connected to the right side of the same first support plate (54).
3. A combustion chamber test bench according to claim 1, characterized in that: A clamping component (6) is provided on the upper side and inside the upper side of the first support plate (54), and the clamping component (6) comprises two guide grooves (61) provided inside the upper side of the first support plate (54), guide blocks (62) are slidably connected inside the two guide grooves (61), and moving blocks (64) are fixedly connected to the upper sides of the two guide blocks (62).
4. A combustion chamber test bench according to claim 3, characterized in that: One side of the opposite surfaces of the two moving blocks (64) is half wrapped around the outside of the same combustion chamber body (57), and the center of the combustion chamber body (57) and the center of the burner (56) are on the same horizontal line.
5. A combustion chamber test bench according to claim 3, characterized in that: The opposing surfaces of the two guide blocks (62) are fixedly connected with a return spring (63), and one end of the opposing surfaces of the two return springs (63) is respectively fixedly connected to the adjacent side inside the two guide grooves (61).
6. A combustion chamber test bench according to claim 4, characterized in that: The right sides of the two moving blocks (64) are fixedly connected to support blocks (65), and the sides of the support blocks (65) that are away from each other are provided with inclined surfaces, and after the two inclined surfaces move, they are respectively pressed and contacted with the front and rear sides of the interior of the protective cover (58).
7. A combustion chamber test bench according to claim 6, characterized in that: One side of the opposite surface of the two support blocks (65) is fixedly connected with a clamping ring (66), and the two clamping rings (66) are sleeved on the outer side of the combustion chamber body (57).
8. The combustion chamber test bench according to claim 1, characterized in that: A tray (67) is fixedly connected to the upper side of the operating table (1); the upper side of the tray (67) is arc-shaped, and the combustion chamber body (57) is overlapped on the upper side of the tray (67).