A diesel engine cylinder block casting pressure test detection device

Abstract

The utility model relates to diesel engine cylinder block pressure test detection technical field, and disclose a kind of diesel engine cylinder block casting pressure test detection device, including water tank, the bottom inside of water tank is equipped with bracing frame, adjustable spacing's support plate is equipped in the top of bracing frame, the both ends of bracing frame top are all welded with connecting frame, the bottom outer wall of water tank is fixed with base by bolt, the top of base is fixed with hydraulic cylinder by bolt, and the movable end of hydraulic cylinder is fixed with connecting frame, one side of water tank has drain pipe for discharging water in water tank, the utility model cooperates with the use of bracing frame and hydraulic cylinder, provides reliable power support for the whole lifting process, makes the immersion and removal operation of cylinder block casting more stable and efficient, improves the security of cylinder block casting detection, by being equipped with gyro wheel, effectively limit the transverse displacement of bracing frame in lifting process, further improve the stability of cylinder block casting in water.

Description

Technical Field

[0001] This utility model relates to the field of diesel engine cylinder block pressure testing technology, and more specifically to a diesel engine cylinder block casting pressure testing device. Background Technology

[0002] Engine block castings need to undergo pressure testing, mainly because they are the "skeleton" of the engine. The interior is filled with cooling water channels, lubricating oil channels, combustion chambers, and cylinder bores. The sealing and structural integrity of these channels directly determine whether the engine can work reliably. Pressure testing is like a rigorous "physical examination" of the cylinder block to ensure that it will not "fail" under harsh operating conditions in the future.

[0003] Currently, when testing cylinder castings, some tests are conducted using air pressure to check for small cracks. This involves placing the cylinder in a container filled with water, ensuring the water covers the cylinder, connecting the air pipe to the corresponding pipeline, blocking the remaining outlets, pressurizing the pipeline with air, and observing the formation of bubbles.

[0004] However, due to the heavy weight of the cylinder, it is transported by hanging crane. The cylinder is not stable enough when it is suspended, which makes it difficult to connect the air pipe to the cylinder. As a result, the connection efficiency of the air pipe is low during the pressure test of the cylinder. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a pressure testing device for diesel engine cylinder block castings to solve the problems existing in the background art.

[0006] This utility model provides the following technical solution: a pressure testing device for diesel engine cylinder block castings, including a water tank, a support frame inside the bottom of the water tank, an adjustable support plate at the top of the support frame, connecting frames welded to both ends of the top of the support frame, a base fixed to the bottom outer wall of the water tank by bolts, a hydraulic cylinder fixed to the top of the base by bolts, and the movable end of the hydraulic cylinder fixed to the connecting frame, and a drain pipe for draining water from the water tank on one side of the water tank.

[0007] As a further embodiment of this utility model, rollers are fixedly connected to both ends of the support frame, and guide frames are fixed to both inner walls of the water tank by bolts, with the rollers moving within the guide frames.

[0008] As a further embodiment of this utility model, the top of the support frame is provided with two sets of positioning groups, each of which includes multiple insertion holes. The bottom of the support plate is welded with two insertion rods, and the two insertion rods are respectively inserted into the nearest insertion holes in the two positioning groups.

[0009] As a further embodiment of this utility model, the top of the base is fixed with multiple telescopic rods by bolts, and the movable end of the telescopic rod is fixed to the connecting frame.

[0010] As a further embodiment of this utility model, the plurality of telescopic rods are each divided into two connecting frames, and each connecting frame has at least two telescopic rods.

[0011] As a further embodiment of this utility model, the outer wall of one side of the water tank is provided with two sets of fixing groups. Each fixing group includes two brackets welded to the water tank. A U-shaped bracket is inserted into the two brackets. Two limiting holes are opened on both sides of the bracket.

[0012] As a further embodiment of this utility model, two limiting plates are welded to one side of the U-shaped frame. When the U-shaped frame is inserted into the insert, the limiting plates come into contact with the insert.

[0013] As a further embodiment of this utility model, two support rods are welded to the outer walls of both sides of the water tank. When the U-shaped frame is inserted into the limiting hole, the limiting plate contacts the support rods.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. This utility model provides reliable power support for the entire lifting process through the combined use of the support frame and the hydraulic cylinder, making the immersion and removal of the cylinder casting operation more stable and efficient, and improving the safety of cylinder casting inspection.

[0016] 2. By incorporating rollers, this utility model effectively limits the lateral displacement of the support frame during lifting and lowering, further enhancing the stability of the cylinder casting in water.

[0017] 3. This utility model, by providing a plug rod and a plug hole, can quickly change the distance between two support plates to meet the support requirements of cylinder castings of different specifications. It is easy to operate and has precise positioning. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0020] Figure 3 For the present utility model Figure 2 A schematic diagram of the enlarged support structure.

[0021] Figure 4 For the present utility model Figure 3 A magnified schematic diagram of the support plate structure.

[0022] The attached diagram is labeled as follows: 1. Base; 2. Water tank; 3. Insert bracket; 4. U-shaped frame; 5. Limiting plate; 6. Drain pipe; 7. Telescopic rod; 8. Support rod; 9. Connecting frame; 10. Guide frame; 11. Support frame; 12. Roller; 13. Insertion hole; 14. Support plate; 15. Limiting hole; 16. Insert rod; 17. Hydraulic cylinder. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Reference Figures 1-4 This utility model provides a pressure testing device for diesel engine cylinder block castings, including a water tank 2. The bottom of the water tank 2 is provided with a support frame 11, and the top of the support frame 11 is provided with an adjustable support plate 14. Both ends of the top of the support frame 11 are welded with connecting frames 9. The bottom outer wall of the water tank 2 is fixed with a base 1 by bolts, and the top of the base 1 is fixed with a hydraulic cylinder 17 by bolts. The movable end of the hydraulic cylinder 17 is fixed with the connecting frame 9. One side of the water tank 2 has a drain pipe 6 for draining water from the water tank 2.

[0025] When a pressure test is required on the cylinder casting, close the drain pipe 6, fill the water tank 2 with clean water, start the hydraulic cylinder 17, and the extension of the hydraulic cylinder 17 will drive the connecting frame 9 and the support plate 14 to move upward, thereby moving the support frame 11 out of the water tank 2. Use a crane to place the cylinder casting on the support plate 14 so that the cylinder casting has a stable support point. Then control the hydraulic cylinder 17 to shorten, so that the support frame 11 and the cylinder casting are lowered together into the clean water in the water tank 2 until the cylinder casting is completely submerged.

[0026] Compressed gas is injected into the cylinder casting using an external pressurization device. Observe whether bubbles are generated on the surface of the cylinder casting. If bubbles continue to emerge, it indicates that there is a leakage problem in that part. Otherwise, it means that the pressure test is qualified.

[0027] Because the cylinder casting has stable support, it provides reliable power support for the entire lifting process, making the immersion and removal of the cylinder casting operation more stable and efficient, and improving the safety of cylinder casting inspection.

[0028] During the testing process, the spacing of the adjustable support plates 14 can be adapted to cylinder castings of different sizes to ensure that they remain stable in the water tank 2 and avoid affecting the accuracy of the test results due to shaking.

[0029] It should be noted that the hydraulic cylinder 17 is an actuator in the hydraulic system. It achieves the telescopic function by cooperating with the hydraulic system, and achieves precise control of the telescopic displacement of the hydraulic cylinder piston rod by cooperating with magnetic switches, proximity switches or photoelectric switches. Those skilled in the art can set it according to actual needs.

[0030] In this utility model, rollers 12 are fixedly connected to both ends of the support frame 11, and guide frames 10 are fixed to both inner walls of the water tank 2 by bolts, and the rollers 12 move within the guide frames 10.

[0031] The inner side of the guide frame 10 is provided with a guide groove that matches the roller 12. The roller 12 can slide smoothly along the guide groove. This design effectively limits the lateral displacement of the support frame 11 during the lifting process and further improves the stability of the cylinder casting in water.

[0032] Furthermore, the top of the support frame 11 is provided with two sets of positioning groups, each of which includes multiple insertion holes 13. The bottom of the support plate 14 is welded with two insertion rods 16, and the two insertion rods 16 are respectively inserted into the nearest insertion hole 13 in the two positioning groups.

[0033] By adjusting the insertion rod 16 into the insertion hole 13 at different positions, the distance between the two support plates 14 can be quickly changed to meet the support requirements of cylinder castings of different specifications. The operation is simple and the positioning is accurate, avoiding the problem of complicated adjustment of traditional support structures.

[0034] Among them, the top of the base 1 is fixed with multiple telescopic rods 7 by bolts, and the movable end of the telescopic rod 7 is fixed to the connecting frame 9;

[0035] These telescopic rods 7 are arranged parallel to the hydraulic cylinders 17. When the hydraulic cylinders 17 drive the connecting frame 9 to rise and fall, the telescopic rods 7 extend and fall synchronously. This can effectively share the radial force borne by the hydraulic cylinders 17, prevent the connecting frame 9 from tilting or swaying during movement, further enhance the stability and structural rigidity of the support frame 11 during the lifting process, and extend the overall service life of the device.

[0036] Furthermore, the multiple telescopic rods 7 are evenly distributed between two connecting frames 9, and each connecting frame 9 has at least two telescopic rods 7;

[0037] This symmetrical design makes the connecting frame 9 more evenly stressed during lifting and lowering, and can better resist the eccentric torque caused by uneven weight of the cylinder casting or slight external disturbances. This ensures that the connecting frame 9 always remains horizontal, thereby further improving the overall stability of the cylinder casting during lifting and lowering and testing in the water tank 2, and reducing the risk of adverse effects on testing accuracy and device components caused by structural stress imbalance.

[0038] As a further embodiment of this utility model, two sets of fixing groups are provided on one side of the outer wall of the water tank 2. Each set of fixing groups includes two brackets 3 welded to the water tank 2. The brackets 3 house the U-shaped frame 4. The U-shaped frame 4 is inserted into the two brackets 3. Two limiting holes 15 are opened on both sides of the support frame 11.

[0039] When the support frame 11 is removed from the water tank 2, the U-shaped frame 4 is inserted into the limiting hole 15 so that the side wall of the water tank 2 limits the support frame 11, preventing the support frame 11 from suddenly falling due to accidental force or failure of the hydraulic cylinder 17, providing additional safety for operators when placing or removing the cylinder casting, and avoiding safety accidents.

[0040] Meanwhile, the design of the U-shaped frame 4 is simple and practical, allowing operators to quickly complete the insertion and removal operations without affecting the normal testing process. When not in use, the U-shaped frame 4 can be inserted back into the insertion frame 3, reducing the risk of component loss and ensuring the overall integrity and safety of the device.

[0041] Two limiting plates 5 are welded to one side of the U-shaped frame 4. When the U-shaped frame 4 is inserted into the insert 3, the limiting plates 5 come into contact with the insert 3.

[0042] Two support rods 8 are welded to both outer walls of the water tank 2. When the U-shaped frame 4 is inserted into the limiting hole 15, the limiting plate 5 contacts the support rods 8.

[0043] The working principle of this utility model:

[0044] When it is necessary to perform a pressure test on the cylinder casting, close the drain pipe 6, fill the water tank 2 with clean water, start the hydraulic cylinder 17, and the extension of the hydraulic cylinder 17 will drive the connecting frame 9 and the support plate 14 to move upward, thereby moving the support frame 11 out of the water tank 2.

[0045] At this time, insert the U-shaped frame 4 into the limiting hole 15 so that the support rod 8 supports and limits the support frame 11. Use a crane to place the cylinder casting on the support plate 14 so that the cylinder casting has a stable support point. Then control the hydraulic cylinder 17 to shorten, so that the support frame 11 and the cylinder casting are lowered together into the clean water in the water tank 2 until the cylinder casting is completely submerged.

[0046] Compressed gas is injected into the cylinder casting using an external pressurization device. Observe whether bubbles are generated on the surface of the cylinder casting. If bubbles continue to emerge, it indicates that there is a leakage problem in that part. Otherwise, it means that the pressure test is qualified.

[0047] Because the cylinder casting provides stable support, it provides reliable power support for the entire lifting process, making the immersion and removal of the cylinder casting operation more stable and efficient.

[0048] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0049] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0050] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A pressure testing device for diesel engine cylinder block castings, comprising a water tank (2), characterized in that: The bottom of the water tank (2) is provided with a support frame (11), and the top of the support frame (11) is provided with an adjustable support plate (14). Both ends of the top of the support frame (11) are fixedly connected to a connecting frame (9). The bottom outer wall of the water tank (2) is fixedly connected to a base (1), and the top of the base (1) is fixedly connected to a hydraulic cylinder (17). The movable end of the hydraulic cylinder (17) is fixed to the connecting frame (9). One side of the water tank (2) has a drain pipe (6) for draining water from the water tank (2).

2. The pressure testing device for diesel engine cylinder block castings according to claim 1, characterized in that: Rollers (12) are fixedly connected to both ends of the support frame (11), and guide frames (10) are fixedly connected to both inner walls of the water tank (2), and the rollers (12) move within the guide frames (10).

3. The pressure testing device for diesel engine cylinder block castings according to claim 1, characterized in that: The top of the support frame (11) is provided with two sets of positioning groups, each of which includes multiple insertion holes (13). The bottom of the support plate (14) is fixedly connected with two insertion rods (16), and the two insertion rods (16) are respectively inserted into the insertion holes (13) that are closest to each other in the two positioning groups.

4. The pressure testing device for diesel engine cylinder block castings according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a plurality of telescopic rods (7), and the movable end of the telescopic rods (7) is fixed to the connecting frame (9).

5. The pressure testing device for diesel engine cylinder block castings according to claim 4, characterized in that: The multiple telescopic rods (7) are evenly distributed across two connecting frames (9), and each connecting frame (9) has at least two telescopic rods (7).

6. The pressure testing device for diesel engine cylinder block castings according to claim 1, characterized in that: Two sets of fixing groups are provided on one side of the outer wall of the water tank (2). Each set of fixing groups includes two brackets (3) fixedly connected to the water tank (2). A U-shaped bracket (4) is inserted into the two brackets (3). Two limiting holes (15) are opened on both sides of the support (11).

7. The pressure testing device for diesel engine cylinder block castings according to claim 6, characterized in that: Two limiting plates (5) are fixedly connected to one side of the U-shaped frame (4). When the U-shaped frame (4) is inserted into the insert (3), the limiting plate (5) contacts the insert (3).

8. The pressure testing device for diesel engine cylinder block castings according to claim 7, characterized in that: Two support rods (8) are fixedly connected to the outer walls of both sides of the water tank (2). When the U-shaped frame (4) is inserted into the limiting hole (15), the limiting plate (5) contacts the support rod (8).

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