Pressure measuring device for cylinder head of generator set

Abstract

The invention provides a generator set cylinder head pressure measuring device, and belongs to the technical field of generator set detection, the generator set cylinder head pressure measuring device comprises a cylinder head clamping part and a pressure measuring piece, and the cylinder head clamping part comprises an upper clamping part, a lower clamping part and a connecting piece. The cylinder head clamping part is composed of the upper clamping part, the lower clamping part and the connecting piece, the upper clamping part and the lower clamping part can be adjusted according to the top surface area and the bottom surface area of the to-be-detected quadrangular cylinder head, the connecting piece can be adjusted according to the thickness of the to-be-detected cylinder head, and the thickness of the to-be-detected cylinder head can be adjusted on the basis of the arrangement. Therefore, the cylinder head clamping part can clamp and position different quadrangular cylinder heads. Furthermore, an adjusting seat connector is arranged on each outer surface of the cylinder head clamping part, so that the adjusting seat can be conveniently mounted on the surface of the inlet and outlet of the water-containing cooling channel, the position of the inlet and outlet of the water-containing cooling channel can be accurately positioned on the surface along the X axis and the Y axis through the movement of the adjusting seat and the pressure measuring head, and the pressure measuring head can be accurately inserted into the inlet and outlet of the water-containing cooling channel.

Description

Technical Field

[0001] The present invention relates to the field of generator set detection, and more specifically, to a cylinder head pressure measuring device for a generator set. Background Art

[0002] The cylinder head of a generator set, also known as a cylinder cover, is a key component of the generator set engine. It is usually made of cast iron or aluminum alloy and internally has structures such as a combustion chamber, an intake passage, an exhaust passage, a water cooling passage, holes for installing spark plugs or fuel injectors, and grooves for installing rocker arm supports and tappets.

[0003] When the cylinder head of a generator set is in use, it is necessary to detect the sealing performance of the water cooling passage therein. The specific reasons are as follows: 1. Prevent coolant leakage: The water cooling holes are the channels for coolant circulation in the cylinder head. If the seal is poor, the coolant will leak to the outside of the engine, resulting in a decrease in the coolant level, affecting the heat dissipation effect, causing the engine temperature to be too high, and even possibly damaging the engine. In addition, coolant leakage may also pollute the environment. If it leaks onto the road surface, it will affect traffic safety.

[0004] 2. Avoid oil contamination: If the seal of the water cooling holes fails, the coolant may enter the oil passage or crankcase, emulsify the oil, reduce the lubricating performance of the oil, exacerbate the wear of engine components, and shorten the service life of the engine.

[0005] 3. Ensure stable engine performance: Good sealing of the water cooling holes can ensure that the coolant circulates in the specified channels, enabling uniform heat dissipation of each part of the cylinder head, maintaining the normal working temperature of the engine, ensuring stable engine performance, and avoiding problems such as power decline and knocking caused by local overheating.

[0006] 4. Improve reliability and safety: Through the seal test, potential seal problems can be discovered and solved in advance, improving the reliability and safety of the engine, and reducing the probability of vehicle breakdown or other safety accidents caused by water cooling system failures.

[0007] The main method in the prior art for measuring the pressure of the water cooling passage of the cylinder head of a generator set is to observe the change of the pressure gauge after filling with water or gas. However, the pressure measuring device in the prior art cannot make adaptive position adjustments for the positions of the water cooling passages of different quadrangular prism-shaped cylinder heads. For example, for the "Cylinder Head Pressure Measuring Device for a Generator Set" applied with the application number "CN202223378940.3", it cannot make position adjustments for the changes in the water cooling passages of the cylinder head. In addition, it cannot perform positioning and clamping for different sizes of quadrangular prism-shaped cylinder heads, and can only design clamping parts with specific requirements to cooperate with cylinder heads of specific sizes to be detected. Summary of the Invention

[0008] To make up for the above deficiencies, the present invention provides a cylinder head pressure measuring device for a generator set, aiming to improve the problems in the existing technology that the measuring device adjusts the clamping according to the size change of the quadrangular prism-shaped cylinder head and cannot adjust the pressure measuring head according to the positions of the water cooling channels of different cylinder heads.

[0009] The present invention is implemented as follows: The present invention provides a cylinder head pressure measuring device for a generator set, including a cylinder head clamping part and a pressure measuring part. The cylinder head clamping part is composed of an upper clamping part, a lower clamping part and a connecting part; Both the upper clamping part and the lower clamping part include: Two sets of transverse clamping plates, which are arranged in parallel and are provided with sliding openings thereon; Two sets of longitudinal clamping plates, which are arranged in parallel and slide in the sliding openings; The connecting parts are four in number and are arranged between the ends of the upper and lower longitudinal clamping plates of the upper clamping part and the lower clamping part; Clamping corners, which are arranged at the hinge joints of the transverse clamping plates and the longitudinal clamping plates to limit the end corners of the cylinder head; The pressure measuring part includes an adjusting seat and a pressure measuring head sliding on the adjusting seat; The adjusting seat is installed in parallel between two transverse clamping plates, between two longitudinal clamping plates or between two adjacent connecting parts; The pressure measuring head is slidably installed on the adjusting seat.

[0010] Preferably, the inner wall of the sliding opening is provided with a limiting sliding groove A, and the longitudinal clamping plate is provided with a sliding part sliding in the limiting sliding groove A.

[0011] Preferably, the sliding part is composed of a lower protrusion and an upper protrusion. The lower protrusion slides in the limiting sliding groove A, and the upper protrusion slides on one side of the longitudinal clamping plate.

[0012] Preferably, one side of the longitudinal clamping plate is provided with a limiting sliding groove B for the upper protrusion to slide.

[0013] Preferably, the clamping corner is composed of a side plate and an L-shaped retaining seat, and the L-shaped retaining seat slides on the longitudinal clamping plate.

[0014] Preferably, the transverse clamping plate is provided with a sliding groove for the side plate to slide, and the thickness of the side plate is greater than the thickness of the sliding opening, and the width of the side plate is the same as the width of the sliding groove.

[0015] Preferably, a moving seat is provided on the back of the L-shaped retaining seat, and the longitudinal clamping plate is provided with a moving sliding groove to prevent the moving seat from detaching; The longitudinal clamping plate is provided with a sliding rail for the vertical end of the L-shaped retaining seat to slide, and the thickness of the vertical end of the L-shaped retaining seat is greater than the thickness of the moving sliding groove, and the width of the vertical end of the L-shaped retaining seat is the same as the width of the moving sliding groove.

[0016] Preferably, the connecting member includes a connecting seat disposed at the end of the longitudinal clamping plate and a plurality of guide rods disposed between the two connecting seats. One end of the guide rod is fixed to one of the connecting seats, and the other connecting seat slidably penetrates through the guide rod.

[0017] Preferably, an adjusting seat connector slides along the length directions of the transverse clamping plate, the longitudinal clamping plate, and the guide rod, and a connector groove corresponding to the adjusting seat connector is provided on the adjusting seat.

[0018] Preferably, the pressure measuring head includes; A displacement seat that slides on the adjusting seat; A pressure measuring tube installed on the displacement seat and provided with a pressure gauge A thereon; A joint seal detection ring disposed outside the pressure measuring tube and fixed to the displacement seat. It is vacuum adsorbed on the outer wall of the cylinder head to be detected, and a joint seal detection cavity is formed between the joint seal detection ring and the pressure measuring tube. A pressure gauge B is also installed on the joint seal detection ring for detecting the air pressure in the joint seal detection cavity.

[0019] The beneficial effects of the present invention are as follows: In the present invention, the cylinder head clamping portion is composed of an upper clamping portion, a lower clamping portion, and a connecting member. The upper clamping portion and the lower clamping portion can be adjusted for the top and bottom surface areas of the four-sided columnar cylinder head to be detected, and the setting of the connecting member can be adjusted for the thickness of the cylinder head to be detected. Based on the above settings, the cylinder head clamping portion can be clamped and positioned for different four-sided columnar cylinder heads. Further, an adjusting seat connector is provided on each outer surface of the cylinder head clamping portion, which is convenient for the adjusting seat to be installed on the surface with the water-cooling channel inlet and outlet. Further, through the movement of the adjusting seat and the pressure measuring head, on this surface, the positions of the water-cooling channel inlet and outlet are accurately positioned in the X-axis and Y-axis directions, so that the pressure measuring head can accurately insert into the water-cooling channel inlet and outlet.

[0020] The present invention also discloses a structure for judging whether the inaccurate detection is caused by the connection tightness between the pressure measuring tube and the water-cooling channel inlet and outlet, that is, a joint seal detection ring is provided on the outer wall of the pressure measuring tube, and a joint seal detection cavity is formed between the joint seal detection ring and the pressure measuring tube. By detecting the pressure change in the joint seal detection cavity with the pressure gauge B, that is, when the pressure gauge B and the pressure gauge A change, it indicates that there is a leak in the connection between the pressure measuring tube and the water-cooling channel of the cylinder head to be detected; when the pressure gauge B does not change and the pressure gauge A changes, it indicates that there is a leak inside the water-cooling channel of the cylinder head to be detected. Description of the Drawings

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0022] Figure 1 is a schematic structural diagram of a cylinder head pressure measuring device for a generator set provided by an embodiment of the present invention; Figure 2 is Figure 1 an enlarged view of part A in Figure 3 is a schematic structural diagram of a clamping corner in a cylinder head pressure measuring device for a generator set provided by an embodiment of the present invention; Figure 4 is a schematic structural diagram of a sliding member in a cylinder head pressure measuring device for a generator set provided by an embodiment of the present invention; Figure 5 is a structural diagram of an adjusting seat and a pressure measuring head in a cylinder head pressure measuring device for a generator set provided by an embodiment of the present invention; Figure 6 is Figure 1 an enlarged view of part B in

[0023] In the figure: 1. Cylinder head clamping part; 10. Horizontal clamping plate; 100. Sliding opening; 11. Vertical clamping plate; 110. Moving sliding groove; 12. Clamping corner; 120. Side plate; 121. L-shaped retaining seat; 122. Moving seat; 2. Adjusting seat; 20. Connector groove; 3. Pressure measuring head; 30. Shifting seat; 31. Pressure measuring tube; 310. Pressure gauge A; 32. Connector seal detection ring; 320. Pressure gauge B; 33. Connector seal detection cavity; 4. Sliding member; 5. Connecting member; 50. Connecting seat; 51. Guide rod; 6. Adjusting seat connector. Specific embodiments

[0024] To make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0025] Example, refer to Figures 1 - 6, A cylinder head pressure measuring device for a generator set, which consists of a cylinder head clamping part 1 and a pressure measuring part. The cylinder head clamping part 1 is used to position the cylinder head to be detected, and the pressure measuring part is used to measure the sealing performance in the cylinder head cooling channel. This embodiment is for a quadrangular prism-shaped cylinder head of a generator set.

[0026] In some embodiments, the cylinder head clamping part 1 includes an upper clamping part, a lower clamping part and a connecting piece 5. The upper clamping part and the lower clamping part cooperate with each other to clamp and position the upper and lower surfaces and the peripheral side of the cylinder head to be detected. Further, the distance between the upper clamping part and the lower clamping part is adjusted through the connecting piece, so as to adapt to cylinder heads to be detected with different thicknesses.

[0027] In this embodiment, for the convenience of production and use of the upper clamping part and the lower clamping part, the upper clamping part and the lower clamping part adopt the same structure, and both are composed of a transverse clamping plate 10, a longitudinal clamping plate 11 and a clamping corner part 12.

[0028] In this embodiment, the number of the transverse clamping plates 10 is two groups. The two groups of transverse clamping plates 10 are arranged in parallel, and a through sliding opening 100 is provided at the middle position thereof. The length of the sliding opening 100 is along the length direction of the transverse clamping plate 10, and the length of the sliding opening 100 is less than the length of the transverse clamping plate 10.

[0029] Further, the number of the longitudinal clamping plates 11 is two groups. The two groups of longitudinal clamping plates 11 are arranged in parallel and are perpendicular to the transverse clamping plate 10. And the longitudinal clamping plate 11 slides in the sliding opening 100. In some embodiments, a limiting sliding groove A is provided on the inner wall of the sliding opening 100, and a sliding part 4 that slides in the limiting sliding groove A is provided on the longitudinal clamping plate 11. Then, through the cooperation of the sliding part 4 and the limiting sliding groove A, it is ensured that the longitudinal clamping plate 11 slides in the sliding opening 100.

[0030] Based on the arrangement of the sliding part 4 and the limiting sliding groove A, the sliding part 4 is composed of a lower protrusion and an upper protrusion. The lower protrusion slides in the limiting sliding groove A, and the upper protrusion slides on one side of the longitudinal clamping plate 11. Refer to Figure 4 , The lower protrusion and the upper protrusion are preferably of a T-shaped structure. The lower protrusion slides along the inner wall length of the sliding opening 100, and the upper protrusion slides along the length of the longitudinal clamping plate 11. Correspondingly, a limiting sliding groove B for the upper protrusion to slide is provided on one side of the longitudinal clamping plate 11. The shape of the limiting sliding groove B and the limiting sliding groove A is also T-shaped, which is the same as the shape of the upper protrusion and the lower protrusion, ensuring that the sliding part 4 slides without detaching from the longitudinal clamping plate 11 and the transverse clamping plate 10.

[0031] In this embodiment, the number of the connecting pieces 5 is four groups. Refer to Figure 1, the connecting member 5 is arranged between the ends of the upper and lower longitudinal clamping plates 11 of the upper clamping part and the lower clamping part. Further, the connecting member 5 includes a connecting seat 50 arranged at the end of the longitudinal clamping plate 11 and multiple guide rods 51 arranged between the two connecting seats 50. One end of the guide rod 51 is fixed on one of the connecting seats 50, and the other connecting seat 50 is slidably penetrated on the guide rod 51. Preferably, the fixed end of the guide rod 51 is arranged on the connecting seat 50 located on the lower clamping part, and the connecting seat 50 of the upper clamping part is slidably sleeved on the outer wall of the guide rod 51, further ensuring the stability of clamping. In some embodiments, an electric cylinder is arranged on the connecting seat 50 of the lower clamping part, and the output end of the electric cylinder is fixed on the connecting seat 50 of the upper clamping part. Then, the electric cylinder drives the upper clamping part to move up and down through the connecting seat 50 of the upper clamping part, so as to adapt to cylinder heads with different thicknesses to be detected. Wherein, through holes for the guide rods 51 are correspondingly formed in the longitudinal clamping plates 11.

[0032] In some embodiments, the clamping corner 12 is arranged at the hinge joint of the transverse clamping plate 10 and the longitudinal clamping plate 11 to limit the end corners of the cylinder head, and further, the side walls of the transverse clamping plate 10 and the longitudinal clamping plate 11 are used to fit and limit the peripheral side of the cylinder head to be detected.

[0033] Further, in this embodiment, to ensure that the side walls of the transverse clamping plate 10 and the longitudinal clamping plate 11 fit the peripheral side of the cylinder head to be detected, the clamping corner 12, the transverse clamping plate 10 and the longitudinal clamping plate 11 are arranged as follows: Refer to Figure 2 , the clamping corner 12 is composed of a side plate 120 and an L-shaped retaining seat 121. The side plate 120 slides along the transverse clamping plate 10, and the L-shaped retaining seat 121 slides along the longitudinal clamping plate 11. The horizontal end of the L-shaped retaining seat 121 limits the upper and lower sides of the cylinder head to be detected. Specifically, when the upper clamping part and the lower clamping part clamp the cylinder head to be detected, the upper and lower sides of the cylinder head to be detected are clamped and positioned by the horizontal ends of the L-shaped retaining seats 121 at the four corners, restricting the up and down movement of the cylinder head to be detected.

[0034] The transverse clamping plate 10 is provided with a sliding groove for the side plate 120 to slide, and the thickness of the side plate 120 is greater than the thickness of the sliding opening 100, ensuring that the transverse clamping plate 10 is always located inside the transverse clamping plate 10. The width of the side plate 120 is the same as the width of the sliding groove. This setting ensures that when the clamping corner 12 clamps the four corners of the cylinder head to be detected, the inner side wall of the transverse clamping plate 10 fits the side wall of the cylinder head to be detected, ensuring that the transverse clamping plate 10 synchronously clamps and positions the side wall of the cylinder head to be detected.

[0035] The L-shaped retaining seat 121 slides on the longitudinal clamping plate 11. Specifically, a moving seat 122 is provided on the back of the L-shaped retaining seat 121, and a moving chute 110 for preventing the moving seat 122 from detaching is provided on the longitudinal clamping plate 11. To avoid the L-shaped retaining seat 121 detaching from the longitudinal clamping plate 11, preferably, the moving seat 122 is also of a T-shaped structure. Correspondingly, the moving chute 110 cooperates with the moving seat 122 to slide, so the moving chute 110 is of a T-shaped structure. In addition, a slide rail for the vertical end of the L-shaped retaining seat 121 to slide is provided on the longitudinal clamping plate 11, and the thickness of the vertical end of the L-shaped retaining seat 121 is greater than the thickness of the moving chute 110, ensuring that the L-shaped retaining seat 121 is always located on the inner side wall of the longitudinal clamping plate 11; the width of the vertical end of the L-shaped retaining seat 121 is the same as the width of the moving chute 110. With this setting method, when the clamping angle 12 clamps the four corners of the cylinder head to be detected, the inner side wall of the longitudinal clamping plate 11 fits the side wall of the cylinder head to be detected, ensuring that the longitudinal clamping plate 11 synchronously clamps and positions the side wall of the cylinder head to be detected.

[0036] By limiting the four corners of the cylinder head to be detected through the upper clamping angle 12, and then cooperating with the movement of the longitudinal clamping plate 11 and the transverse clamping plate 10, the circumferential clamping and limiting of the cylinder head to be detected with different circumferential dimensions are completed, ensuring the clamping stability of the cylinder head to be detected with different dimensions.

[0037] In this embodiment, based on the composition of the cylinder head clamping portion 1, the structural composition of the pressure measuring member is also disclosed. Preferably, the pressure measuring member includes an adjusting seat 2 and a pressure measuring head 3 sliding on the adjusting seat 2. Among them, the adjusting seat 2 is movably installed on the periphery of the cylinder head clamping portion 1, and the side of the water cooling channel of the cylinder head to be detected at the pressure measuring head 3 is adjusted by adjusting the position of the adjusting seat 2. Further, the position of the pressure measuring head 3 is adjusted to align it with the inlet of the water cooling channel of the cylinder head to be detected.

[0038] To further realize the movement adjustment of the adjusting seat 2 on each surface of the cylinder head clamping portion 1, that is, the adjusting seat 2 is installed in parallel between the two transverse clamping plates 10, between the two longitudinal clamping plates 11 or between two adjacent connecting members 5. The preferred settings are as follows: First, in cooperation with the use of the adjusting seat 2, an adjusting seat connector 6 is provided. The adjusting seat connector 6 slides along the length directions of the transverse clamping plate 10, the longitudinal clamping plate 11 and the guide rod 51. Specifically, the adjusting seat connector 6 is composed of a lower end head and an upper end head. Both the lower end head and the upper end head are of a T-shaped structure. The lower end head slides on the transverse clamping plate 10, the longitudinal clamping plate 11 and the guide rod 51. The lower end head sliding on the guide rod 51 can be a quadrangular prism and is slidably sleeved on the guide rod 51. It should be noted that: the horizontal end of the T-shaped structure of the upper end head and the horizontal end of the T-shaped structure of the lower end head are vertically arranged, so that after the adjusting seat 2 is installed on the adjusting seat connector 6, it slides along the length directions of the transverse clamping plate 10, the longitudinal clamping plate 11 and the guide rod 51.

[0039] Secondly, the mating relationship between the adjusting seat 2 and the adjusting seat connector 6 is as follows: The adjusting seat 2 is provided with a connector groove 20 corresponding to the adjusting seat connector 6. The upper end of the connector groove 20 corresponding to the adjusting seat connector 6 is set as a T-shaped groove, and the connector groove 20 is arranged along the length of the adjusting seat 2, and the length of the connector groove 20 is the same as the length of the adjusting seat 2. During use, the connector groove 20 on the adjusting seat 2 is clamped on two adjusting seat connectors 6 on the same side. By adjusting the position of the adjusting seat 2, the position of the adjusting seat connector 6 is driven to move, and then the position of the pressure measuring head 3 is adjusted.

[0040] In this embodiment, the pressure measuring head 3 is slidably installed on the adjusting seat 2, that is, the adjusting seat 2 is provided with a pressure measuring head sliding port. The pressure measuring head sliding port is arranged along the length of the adjusting seat 2, and the length of the pressure measuring head sliding port is less than the length of the adjusting seat 2. The pressure measuring head 3 is slidably installed in the pressure measuring head sliding port. After the adjusting seat 2 determines the water-cooling port surface of the cylinder head to be detected, through the sliding adjustment of the adjusting seat 2 and the sliding adjustment of the pressure measuring head 3, precise XY-axis positioning is performed on the determined water-cooling port surface to ensure that the pressure measuring head 3 is accurately positioned at the water-cooling port to be detected.

[0041] Finally, this embodiment also discloses the structural composition of a pressure measuring head 3. The pressure measuring head includes a displacement seat 30, a pressure measuring tube 31, and a joint seal detection ring 32.

[0042] Refer to Figure 5 , the displacement seat 30 slides on the adjusting seat 2. Further, the displacement seat 30 slides in the pressure measuring head sliding port to prevent the displacement seat 30 from detaching from the adjusting seat 2. Slider protrusions can be provided on both the upper and lower sides of the displacement seat 30, and slider grooves for the slider protrusions to slide are provided on the inner wall of the pressure measuring head sliding port. The displacement seat 30 is a carrier for the pressure measuring tube 31 and the joint seal detection ring 32, and the movement of the displacement seat 30 drives the movement of the pressure measuring tube 31 and the joint seal detection ring 32.

[0043] The pressure measuring tube 31 is installed on the displacement seat 30. Specifically, one end of the pressure measuring tube 31 penetrates through the displacement seat 30 and extends outward. The other end of the pressure measuring tube 31 is connected to an external gas or water delivery pipe with an electromagnetic valve. The electromagnetic valve can be a pneumatic valve or a hydraulic valve, which is determined according to the pressure measuring method. A pressure gauge A310 is provided on the pressure measuring tube 31. The pressure gauge A is provided to measure the internal pressure intensity after water or gas is filled in the pressure measuring tube 31 when it is connected to the water-cooling channel of the cylinder head to be detected, so as to judge whether there is a leakage problem in the water-cooling channel of the cylinder head to be detected.

[0044] It should be added that: In some embodiments, an extendable extension tube is provided at the end of the pressure measuring tube 31. Through the setting of the extension tube, it can be adjusted according to the depth of the water-cooling channel of the cylinder head to be detected. The adjustment of the extension tube can be realized by a linear drive structure such as a cylinder in the prior art.

[0045] The joint seal detection ring 32 is disposed outside the pressure measuring pipe 31 and fixed to the displacement seat 30. The joint seal detection ring 32 is adsorbed on the outer wall of the cylinder head to be detected through vacuum. Preferably, an annular vacuum pumping groove is provided inside the joint seal detection ring 32, a sucker assembly is provided at the notch of the vacuum pumping groove, and the vacuum pumping groove is communicated with an external vacuum pumping pipe. When the joint seal detection ring 32 abuts against the outer side wall of the cylinder head to be detected, the vacuum pumping groove is evacuated through the external vacuum pumping pipe, so as to cooperate with the sucker to adsorb the joint seal detection ring 32 at the periphery of the water cooling channel of the cylinder head to be detected.

[0046] To detect the sealing performance of the connection between the pressure measuring pipe 31 and the water cooling channel of the cylinder head to be detected, a joint seal detection cavity 33 is formed between the joint seal detection ring 32 and the pressure measuring pipe 31. A pressure gauge B320 is further installed on the joint seal detection ring 32 for detecting the air pressure in the joint seal detection cavity 33. When the joint seal detection ring 32 is installed on the cylinder head to be detected and the pressure measuring pipe 31 detects the water cooling channel of the cylinder head to be detected, if the reading of the pressure gauge B320 changes, it indicates that there is a leakage problem in the connection between the pressure measuring pipe 31 and the water cooling channel of the cylinder head to be detected, and then retest, replace the pressure measuring pipe 31 or adjust the pressure measuring pipe 31. Therefore, through the pressure gauge B320, it can be further determined whether the detection data of the pressure gauge A310 is inaccurate. When the pressure gauge B320 and the pressure gauge A310 change, it indicates that there is a leakage in the connection between the pressure measuring pipe 31 and the water cooling channel of the cylinder head to be detected; when the pressure gauge B320 does not change while the pressure gauge A310 changes, it indicates that there is a leakage inside the water cooling channel of the cylinder head to be detected.

[0047] It should be noted that the specific model and specification of the motor need to be selected according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in the field, so it will not be elaborated in detail here.

[0048] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cylinder head pressure measuring device for a generator set, comprising a cylinder head clamping part (1) and a pressure measuring member, characterized in that, The cylinder head clamping part (1) consists of an upper clamping part, a lower clamping part and a connecting piece (5); Both the upper clamping part and the lower clamping part include: Transverse clamping plates (10), with two groups in number and arranged in parallel, each having a sliding opening (100) thereon; Longitudinal clamping plates (11), with two groups in number and arranged in parallel, sliding within the sliding openings (100); There are four groups of the connecting pieces (5), which are arranged between the ends of the upper and lower longitudinal clamping plates (11) of the upper clamping part and the lower clamping part; Clamping corners (12), arranged at the hinge joints of the transverse clamping plates (10) and the longitudinal clamping plates (11), for limiting the end corners of the cylinder head; The pressure measuring part includes an adjusting seat (2) and a pressure measuring head (3) sliding on the adjusting seat (2); The adjusting seat (2) is installed in parallel between two transverse clamping plates (10), between two longitudinal clamping plates (11), or between two adjacent connecting pieces (5); The pressure measuring head (3) is slidably installed on the adjusting seat (2), and the pressure measuring head (3) includes: A displacement seat (30), and the displacement seat (30) slides on the adjusting seat (2); A pressure measuring pipe (31), installed on the displacement seat (30), and having a pressure gauge A (310) thereon; A joint seal detection ring (32), arranged outside the pressure measuring pipe (31) and fixed to the displacement seat (30), which is vacuum-adsorbed on the outer wall of the cylinder head to be detected, and a joint seal detection cavity (33) is formed between the joint seal detection ring (32) and the pressure measuring pipe (31). A pressure gauge B (320) is also installed on the joint seal detection ring (32) for detecting the air pressure in the joint seal detection cavity (33).

2. The cylinder head pressure measuring device for a generator set according to claim 1, wherein The inner wall of the sliding opening (100) is provided with a limiting sliding groove A, and the longitudinal clamping plate (11) is provided with a sliding part (4) sliding within the limiting sliding groove A.

3. The cylinder head pressure measuring device of a generator set according to claim 2, characterized in that, The sliding part (4) consists of a lower protrusion and an upper protrusion. The lower protrusion slides within the limiting sliding groove A, and the upper protrusion slides on one side of the longitudinal clamping plate (11).

4. The cylinder head pressure measuring device for a generator set according to claim 3, characterized in that, One side of the longitudinal clamping plate (11) is provided with a limiting sliding groove B for the upper protrusion to slide.

5. A cylinder head pressure measuring device for a generator set according to claim 1, characterized in that, The clamping corner (12) consists of a side plate (120) and an L-shaped retaining seat (121), and the L-shaped retaining seat (121) slides on the longitudinal clamping plate (11).

6. The cylinder head pressure measuring device for a generator set according to claim 5, characterized in that, The transverse clamping plate (10) is provided with a sliding groove for the side plate (120) to slide, and the thickness of the side plate (120) is greater than the thickness of the sliding opening (100), and the width of the side plate (120) is the same as the width of the sliding groove.

7. The cylinder head pressure measuring device of a generator set according to claim 5, characterized in that, A moving seat (122) is provided on the back of the L-shaped retaining seat (121), and the longitudinal clamping plate (11) is provided with a moving sliding groove (110) to prevent the moving seat (122) from detaching; The longitudinal clamping plate (11) is provided with a sliding rail for the vertical end of the L-shaped retaining seat (121) to slide, and the thickness of the vertical end of the L-shaped retaining seat (121) is greater than the thickness of the moving sliding groove (110), and the width of the vertical end of the L-shaped retaining seat (121) is the same as the width of the moving sliding groove (110).

8. The cylinder head pressure measuring device of a generator set according to claim 1, characterized in that, The connecting member (5) includes a connecting seat (50) provided at the end of the longitudinal clamping plate (11) and a plurality of guide rods (51) arranged between the two connecting seats (50). One end of the guide rod (51) is fixed to one of the connecting seats (50), and the other connecting seat (50) slidably penetrates through the guide rod (51).

9. A cylinder head pressure measuring device for a generator set according to claim 8, characterized in that, An adjusting seat connector (6) slides along the length directions of the transverse clamping plate (10), the longitudinal clamping plate (11) and the guide rod (51), and a connector groove (20) corresponding to the adjusting seat connector (6) is provided on the adjusting seat (2).

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