Cylinder cover combustion chamber explosion surface high pressure test detection structure

Abstract

The utility model relates to the cylinder cover pressure test detection technical field, and discloses a cylinder cover combustion chamber explosion surface high pressure test detection structure comprising a pressure test bench and a pressure test plate, the top of the pressure test bench is provided with a positioning assembly, the pressure test bench is internally provided with a collection assembly, the top of the pressure test bench is provided with an extrusion assembly, and the extrusion assembly is internally provided with a collection assembly. The positioning assembly comprises limiting grooves uniformly formed in the surface of the top of the pressure test plate in a penetrating mode, the bottom of the pressure test plate is fixedly connected with a heightening base plate in a sealed mode, a rotating cross is arranged below the center of the pressure test plate, and each end of the rotating cross is rotationally connected with a connecting rod; and the other ends of the multiple connecting rods are rotationally connected with limiting blocks, the tops of the multiple limiting blocks are rotationally connected with positioning wheels, a motor is arranged at the bottom of the rotating cross, and a first sealing gasket is arranged at the top of the pressure test table. According to the utility model, the positioning assembly and the extrusion assembly are matched for use, so that the cylinder cover can be quickly fixed.

Description

Technical Field

[0001] This utility model relates to the field of cylinder head pressure testing technology, and in particular to a high-pressure testing structure for the combustion surface of the cylinder head combustion chamber. Background Technology

[0002] The cylinder head is installed on top of the cylinder block, sealing the cylinder from the top and forming the combustion chamber. It is a key component of the engine. During engine operation, the combustion chamber needs to withstand extremely high pressure and temperature. If the sealing performance is not good, it will lead to gas leakage, which will affect the engine's performance and efficiency. High pressure testing can detect and repair sealing problems in time to ensure the normal operation of the combustion chamber. This requires the use of high pressure testing equipment for the combustion surface of the cylinder head combustion chamber.

[0003] The high-pressure testing equipment includes a pressure pump, pressure gauge, connecting pipes and seals. The cylinder head is then placed on a dedicated testing platform. After ensuring stability and ease of operation, a high-pressure test is performed on it.

[0004] Existing high-pressure testing equipment for the combustion surface of cylinder head combustion chambers requires placing the cylinder head in a fixed position on the test bench, ensuring that the contact surfaces of the cylinder head and the test bench are flat and aligned. Then, the cylinder head is fixed to the test bench with bolts. The tightening sequence of the bolts should follow certain rules, such as tightening evenly from the center to the periphery, to avoid uneven stress on the cylinder head, which could lead to deformation or damage. Therefore, existing equipment is not convenient for fixing the cylinder head. To address this issue, a high-pressure testing structure for the combustion surface of cylinder head combustion chambers is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high-pressure testing structure for the combustion surface of the cylinder head combustion chamber, aiming to improve the problem that existing equipment is not convenient for fixing the cylinder head.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-pressure test structure for the combustion surface of a cylinder head combustion chamber, comprising a test platform and a test plate, wherein a positioning component is provided on the top of the test platform, a collecting component is provided inside the test platform, and a squeezing component is provided on the top of the test platform; the positioning component includes a limiting groove uniformly penetrating the top surface of the test plate; a heightening pad is sealed and fixedly connected to the bottom of the test plate; a rotating cross is provided below the center of the test plate; each end of the rotating cross is rotatably connected to a connecting rod; the other end of a plurality of connecting rods is rotatably connected to a limiting block; the top of a plurality of limiting blocks is rotatably connected to a positioning wheel; a motor is provided at the bottom of the rotating cross; and a first sealing gasket is provided on the top of the test platform.

[0007] As a further description of the above technical solution: the collection component includes a water collection tank opened on the surface of the pressure test platform, the surface of the pressure test platform is evenly and symmetrically provided with water outlets, and a water collection tank is slidably connected inside the pressure test platform;

[0008] As a further description of the above technical solution: the extrusion assembly includes brackets symmetrically and fixedly connected to the top of the test bench, each bracket having a guide rod fixedly connected inside, a hydraulic cylinder slidably connected between the two brackets, a connecting plate fixedly connected to the output shaft surface of the hydraulic cylinder, and a second sealing gasket fixedly connected to the bottom surface of the connecting plate.

[0009] As a further description of the above technical solution: the limiting block is slidably connected inside the limiting groove, and the motor is located inside the heightening pad;

[0010] As a further description of the above technical solution: the output shaft surface of the motor is fixedly connected to the bottom surface of the rotating cross, and the positioning wheel is located above the test plate;

[0011] As a further description of the above technical solution: the drain outlet is located inside the water collection tank, and the drain outlet is interconnected with the interior of the water collection tank;

[0012] As a further description of the above technical solution: the bracket is fixedly connected to both sides of the top of the pressure test platform and is located above the pressure test plate, and the positioning component is located inside the water collection tank;

[0013] As a further description of the above technical solution: the first sealing gasket and the second sealing gasket are the same size, and the connecting plate is slightly smaller than the second sealing gasket.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the cylinder head can be quickly fixed by the combined use of the positioning component and the extrusion component. Fixing the cylinder head can prevent it from moving or suddenly popping out during high-pressure testing, thereby avoiding injury to operators or damage to the testing equipment. Through stable fixing, the cylinder head can be prevented from cracking or deforming due to uneven force, ensuring the smooth progress of the testing process. At the same time, fixing the cylinder head can ensure that the test pressure is accurately applied to the cylinder head, thereby accurately evaluating the pressure-bearing capacity and sealing performance of the cylinder head. The stable fixing state can prevent test errors caused by cylinder head movement or deformation, improving the accuracy and reliability of the test.

[0016] 2. In this utility model, by setting up the collection component, the water in the cylinder head may flow into the water collection tank during the pressure test due to leakage or other reasons, thus avoiding water flowing to the ground and causing environmental pollution or safety hazards. At the same time, by setting up the collection box, the water can be drained after the pressure test is completed. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a high-pressure test structure for the combustion surface of a cylinder head combustion chamber proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the positioning component of a high-pressure test and detection structure for the combustion surface of a cylinder head combustion chamber proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the collection component of a high-pressure test detection structure for the combustion surface of a cylinder head combustion chamber proposed in this utility model.

[0020] Legend:

[0021] 1. Test pressure table; 2. Test pressure plate; 3. Positioning assembly; 31. Limiting groove; 32. Heightening pad; 33. Rotating cross; 34. Connecting rod; 35. Limiting block; 36. Positioning wheel; 37. Motor; 38. First sealing gasket; 4. Collection assembly; 41. Water collection tank; 42. Leakage outlet; 43. Water collection tank; 5. Extrusion assembly; 51. Bracket; 52. Guide rod; 53. Hydraulic cylinder; 54. Connecting plate; 55. Second sealing gasket. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figure 1 - Figure 3This utility model provides an embodiment of a high-pressure test structure for the combustion surface of a cylinder head combustion chamber, including a test bench 1 and a test plate 2. A positioning component 3 is provided on the top of the test bench 1, a collecting component 4 is provided inside the test bench 1, and a pressing component 5 is provided on the top of the test bench 1. The positioning component 3 includes a limiting groove 31 uniformly penetrating the top surface of the test plate 2. A raising pad 32 is sealed and fixedly connected to the bottom of the test plate 2. A rotating cross 33 is provided below the center of the test plate 2. Each end of the rotating cross 33 is rotatably connected to a connecting rod 34, and the other end of each connecting rod 34 is rotatably connected to a limiting block 35. Positioning wheels 36 are rotatably connected to the tops of each limiting block 35. A motor 37 is provided at the bottom of the rotating cross 33. A first sealing gasket 38 is provided on the top of the test bench 1. The pressing component 5 includes brackets 51 symmetrically fixedly connected to the top of the test bench 1. The internal components of the frame 51 are fixedly connected to the guide rod 52. A hydraulic cylinder 53 is slidably connected between the two supports 51. A connecting plate 54 is fixedly connected to the output shaft surface of the hydraulic cylinder 53. A second sealing gasket 55 is fixedly connected to the bottom surface of the connecting plate 54. Through the cooperation of the positioning component 3 and the pressing component 5, the cylinder head can be quickly fixed. Fixing the cylinder head can prevent it from moving or suddenly popping out during the high-pressure test, thereby avoiding injury to the operator or damage to the test equipment. Through a stable fixation, the cylinder head can be prevented from cracking or deforming due to uneven force, ensuring the smooth progress of the test process. At the same time, the fixation of the cylinder head can ensure that the test pressure is accurately applied to the cylinder head, thereby accurately evaluating the pressure bearing capacity and sealing performance of the cylinder head. The stable fixation can prevent test errors caused by cylinder head movement or deformation, improving the accuracy and reliability of the test.

[0024] Reference Figure 1 - Figure 3The collection component 4 includes a water collection tank 41 formed on the surface of the pressure test bench 1, with drain outlets 42 evenly and symmetrically formed on the surface of the pressure test bench 1. A water collection tank 43 is slidably connected inside the pressure test bench 1. A limiting block 35 is slidably connected inside the limiting groove 31. A motor 37 is located inside the raising plate 32, and the output shaft surface of the motor 37 is fixedly connected to the bottom surface of the rotating cross 33. A positioning wheel 36 is located above the pressure test plate 2. Drain outlets 42 are formed inside the water collection tank 41 and are interconnected with the inside of the water collection tank 43. A bracket 51 is fixedly connected to both sides of the top of the pressure test bench 1 and is located above the pressure test plate 2. A positioning component 3 is located inside the water collection tank 41. The first sealing gasket 38 and the second sealing gasket 55 are the same size, and the connecting plate 54 is slightly smaller than the second sealing gasket 55. At this time, the cylinder head is connected to the external water inlet. Install a pressure gauge at the inlet pipe and vent pipe, then open the inlet valve and vent valve to pressurize the cylinder head water chamber under tap water pressure. When the water chamber is full, close the inlet valve and vent valve; at this point, the pressure gauge reading will be zero. Connect the vent pipe to the compressor and start pressurizing the water chamber using the compressor. Once the pressure gauge reaches the engine water pump pressure, close the compressor and vent valve and maintain this pressure for five minutes. During this process, observe whether the pressure gauge reading is stable and whether water droplets appear around the cylinder head. The collection component 4 prevents water from leaking into the water collection tank 41 during the pressure test, thus avoiding water flowing onto the ground and causing environmental pollution or safety hazards. The water collection tank 43 allows water to be drained after the pressure test.

[0025] Working principle: First, clean the cylinder head. Fix the first sealing gasket 38 and the second sealing gasket 55, suitable for the cylinder head, to the surface of the test plate 2 and the connecting plate 54, respectively. Install the cylinder head onto the surface of the test plate 2, which is the surface of the first sealing gasket 38. Adjust the position of the hydraulic cylinder 53 using the guide rod 52. Then, start the hydraulic cylinder 53, causing its output shaft to press down, thereby moving the connecting plate 54 downwards. This causes the second sealing gasket 55 to adhere to the surface of the cylinder head. At this time, start the motor 37, which drives the rotating cross 33 to rotate. The rotating cross 33 drives the connecting rod 34 to move, and the connecting rod 34 drives the limiting block 35 to slide inside the limiting groove 31, thereby moving the four positioning wheels 36 towards the center of the test plate 2, thus achieving cylinder head alignment. After the cylinder head is stably positioned, connect the external water inlet pipe and vent pipe to the cylinder head. Install a pressure gauge at the water inlet pipe, then open the water inlet valve and vent valve to pressurize the cylinder head water chamber under tap water pressure. When the water chamber is full, close the water inlet valve and vent valve. At this time, the pressure gauge reading is zero. Connect the vent pipe to the compressor and start pressurizing the water chamber with the compressor. After the pressure gauge reaches the engine water pump pressure, close the compressor and vent valve and maintain this pressure for five minutes. During this process, observe whether the pressure gauge reading is stable and whether water droplets appear around the cylinder head. When the test is completed, remove the compressor, water inlet pipe, and vent pipe. At this time, the water inside the cylinder head flows into the water collection tank 41 and flows into the water collection tank 43 through the drain port 42, keeping the entire test pressure table 1 clean.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-pressure test structure for the combustion surface of a cylinder head combustion chamber, comprising a test bench (1) and a test plate (2), characterized in that: The pressure test bench (1) is provided with a positioning component (3) on top, a collection component (4) is provided inside the pressure test bench (1), and a squeezing component (5) is provided on top of the pressure test bench (1). The positioning component (3) includes a limiting groove (31) uniformly opened through the top surface of the test plate (2). The bottom of the test plate (2) is sealed and fixedly connected to a heightening pad (32). A rotating cross (33) is provided below the center of the test plate (2). Each end of the rotating cross (33) is rotatably connected to a connecting rod (34). The other end of the multiple connecting rods (34) is rotatably connected to a limiting block (35). The top of the multiple limiting blocks (35) is rotatably connected to a positioning wheel (36). A motor (37) is provided at the bottom of the rotating cross (33). A first sealing gasket (38) is provided at the top of the test table (1).

2. The high-pressure testing structure for the combustion surface of a cylinder head combustion chamber according to claim 1, characterized in that: The collection component (4) includes a water collection tank (41) opened on the surface of the pressure test platform (1), and the surface of the pressure test platform (1) is uniformly and symmetrically provided with water outlets (42), and the inside of the pressure test platform (1) is slidably connected to a water collection tank (43).

3. The high-pressure testing structure for the combustion surface of a cylinder head combustion chamber according to claim 2, characterized in that: The extrusion assembly (5) includes brackets (51) symmetrically fixedly connected to the top of the test bench (1). The inside of each bracket (51) is fixedly connected to a guide rod (52). A hydraulic cylinder (53) is slidably connected between the two brackets (51). A connecting plate (54) is fixedly connected to the output shaft surface of the hydraulic cylinder (53). A second sealing gasket (55) is fixedly connected to the bottom surface of the connecting plate (54).

4. The high-pressure test structure for the combustion surface of the cylinder head combustion chamber according to claim 1, characterized in that: The limiting block (35) is slidably connected inside the limiting groove (31), and the motor (37) is located inside the heightening pad (32).

5. The high-pressure testing structure for the combustion surface of a cylinder head combustion chamber according to claim 1, characterized in that: The output shaft surface of the motor (37) is fixedly connected to the bottom surface of the rotating cross (33), and the positioning wheel (36) is located above the test plate (2).

6. The high-pressure testing structure for the combustion surface of a cylinder head combustion chamber according to claim 2, characterized in that: The drain outlet (42) is located inside the water collection tank (41), and the drain outlet (42) is connected to the inside of the water collection tank (43).

7. The high-pressure test structure for the combustion surface of the cylinder head combustion chamber according to claim 3, characterized in that: The bracket (51) is fixedly connected to both sides of the top of the test pressure table (1) and located above the test pressure plate (2). The positioning component (3) is located inside the water collection tank (41).

8. The high-pressure test structure for the combustion surface of the cylinder head combustion chamber according to claim 3, characterized in that: The first sealing gasket (38) and the second sealing gasket (55) are the same size, and the connecting plate (54) is slightly smaller than the second sealing gasket (55).

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