A cylinder head pumping tool cart

Abstract

The application discloses a cylinder head pump pressure tool vehicle for cylinder head sealing test, comprising: a pump pressure vehicle frame, which is used for bearing the overall structure of the tool vehicle and providing a mounting base; a pump pressure sealing bottom plate, which is fixedly connected with the pump pressure vehicle frame and is used for placing and bearing a cylinder head, and is arranged to be inclined relative to the pump pressure vehicle frame to form a flow guide slope, the flow guide slope being used for guiding the leakage medium of the cylinder head to flow out along the surface of the cylinder head; a water pump and a pipeline connected with the water pump, the water pump being used for providing pressure medium required by the sealing test, and an output end of the pipeline being used for corresponding connection with the cylinder head.

Description

Technical Field

[0001] This application relates to the field of sealing testing tooling, and more specifically to a cylinder head pump pressure tool cart. Background Technology

[0002] Currently, the bare weight of a single diesel engine cylinder head is generally around 25 kg. During diesel engine repair and maintenance, it is necessary to test the sealing performance of the cylinder head cooling water chamber. If the sealing performance of the water chamber cannot be guaranteed, coolant leakage during diesel engine operation will lead to a series of serious accidents such as cylinder scoring and high temperature. Therefore, the cylinder head sealing test is a very important and indispensable part of the repair process.

[0003] During testing, existing tooling is susceptible to external interference in identifying and judging leaks. It not only requires waiting time to confirm the leak situation, resulting in low detection efficiency, but also may lead to misjudgment or missed detection of leaks due to deficiencies in the tooling's structural design, affecting the accuracy of test results. In addition, existing tooling often struggles to balance simultaneous testing of multiple cylinder heads with ease of operation. It can either only test a small number of cylinder heads at a time, failing to meet the needs of batch tasks, or although it can achieve multi-cylinder head testing, the overall flexibility of the tooling is poor, making it difficult to adjust its position according to the space at the repair site, further restricting the improvement of testing efficiency. Utility Model Content

[0004] The purpose of this application is to provide a cylinder head pump pressure tool cart to improve the efficiency of sealing performance testing and the accuracy of the test results.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: A cylinder head pump pressure tool cart is provided for cylinder head sealing performance testing, comprising: a pump pressure cart frame, which supports the overall structure of the tool cart and provides an installation base; a pump pressure sealing base plate, which is fixedly connected to the pump pressure cart frame, and is used to place and support the cylinder head, with the base plate inclined relative to the pump pressure cart frame to form a guide slope, which allows leakage medium from the cylinder head to flow out along its surface; a water pump and a pipeline connected to the water pump, the water pump providing the pressure medium required for the sealing performance test, and the output end of the pipeline being connected to the cylinder head.

[0006] As a preferred embodiment, the pump pressure sealing base plate is provided with multiple cylinder head mounting positions arranged in parallel at intervals.

[0007] As another preferred embodiment, each of the cylinder head mounting positions is provided with a limiting and fixing component in the circumferential direction. The limiting and fixing component is connected to the cylinder head to fix the cylinder head in the corresponding cylinder head mounting position on the pump pressure sealing plate.

[0008] Further preferably, the limiting and fixing component includes multiple positioning screws, which are evenly distributed around the cylinder head mounting position, and are distributed along the four corners of the cylinder head mounting position.

[0009] Further preferably, the pump pressure sealing base plate has an opening corresponding to each cylinder head mounting position.

[0010] Preferably, the pump truck frame is provided with at least one pipe clamp, which is used to limit and fix the pipe connected to the water pump; the pipe connected to the water pump includes a main pipe, which is limited and fixed to the pump truck frame by the pipe clamp, and the pipe clamp causes the main pipe to be set close to the pump truck frame.

[0011] Preferably, the cylinder head pump pressure tool cart further includes multiple pump pressure sealing plates, and the pipeline further includes multiple branch pipelines. One end of each branch pipeline is connected to the main pipeline, and the other end is connected to the corresponding pump pressure sealing plate. The pump pressure sealing plate is used to achieve a sealed connection between the branch pipeline and the cylinder head.

[0012] Further preferred, the pump frame is integrally welded from multiple square steel pipes and steel plates.

[0013] Further preferably, the pipeline is a pressure copper pipe.

[0014] Preferably, the cylinder head pump press cart further includes rollers for moving the cylinder head pump press cart; the rollers are connected to the bottom of the pump press cart frame. Compared with the prior art, the beneficial effects of this application are as follows: During the cylinder head sealing test, if one of the cylinder heads has a leak, the pressurized water in the cavity will seep out from the leak and flow along the outer wall surface of the cylinder head to the guide slope of the pump pressure sealing base plate. Due to the inclined design of the guide slope, the leaked water will flow rapidly downward along the slope under the action of gravity and eventually be discharged from the edge of the base plate or from the liquid collection groove preset on the pump pressure sealing base plate. The whole process is relatively fast, and the operator can directly observe the starting position of the water flow and find the leak.

[0015] Meanwhile, the guide slope formed between the pump pressure sealing base plate and the pump pressure vehicle frame can avoid liquid accumulation interference and improve test accuracy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the cylinder head pump pressure tool cart.

[0017] Figure 2 This is a structural diagram of the pump truck frame and the pump sealing base plate.

[0018] Figure 3 This is a schematic diagram of the side structure of the cylinder head pump pressure tool cart.

[0019] Figure 4 This is a top-down structural diagram of the cylinder head pump pressure tool cart.

[0020] Figure 5 This is a schematic diagram of the pump pressure sealing base plate.

[0021] In the diagram: 1. Cylinder head pump tool cart; 2. Cylinder head; 10. Pump cart frame; 11. Pipeline foot; 20. Pump sealing base plate; 21. Guide slope; 22. Opening; 30. Water pump; 40. Pipeline; 41. Main pipeline; 42. Branch pipeline; 50. Cylinder mounting position; 60. Limiting fastener; 61. Positioning screw; 70. Pump sealing plate; 80. Roller assembly. Detailed Implementation

[0022] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0024] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0025] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0026] In a preferred embodiment, see Figures 1 to 5This application provides a cylinder head pump pressure tool cart 1 for cylinder head 2 sealing performance testing, comprising: a pump pressure cart frame 10, which supports the overall structure of the tool cart and provides an installation base; a pump pressure sealing base plate 20, which is fixedly connected to the pump pressure cart frame 10 and is used to place and support the cylinder head 2, and the pump pressure sealing base plate 20 is inclined relative to the pump pressure cart frame 10 to form a guide slope 21, which allows the leakage medium of the cylinder head 2 to flow out along its surface; a water pump 30 and a pipeline 40 connected to the water pump 30, the water pump 30 being used to provide the pressure medium required for the sealing performance test, and the output end of the pipeline 40 being connected to the cylinder head 2.

[0027] Preferably, the pump pressure sealing base plate 20 and the plane of the pump pressure vehicle frame 10 form a guide slope 21 with a 30-degree inclination, and the inclination direction is towards the operating side of the tool vehicle, which is convenient for the operator to observe. The water pump 30 is preferably an electric water pump 30. After the water pump 30 is started, the pressure medium (clean water) enters the cooling water chamber of each cylinder head 2 through the pipeline 40. If there is a leak in one of the cylinder heads 2, the pressurized water in the chamber will seep out from the leak and flow along the outer wall surface of the cylinder head 2 to the guide slope 21 of the pump pressure sealing base plate 20. Since the slope is preferably inclined at a 30-degree angle, the leaked water will flow rapidly downward along the slope under the action of gravity and finally be discharged from the edge of the base plate or from the liquid collection tank preset on the pump pressure sealing base plate 20. The whole process is relatively fast, and the operator can directly observe the starting position of the water flow and find the leak.

[0028] Meanwhile, the guide slope 21 formed between the pump pressure sealing base plate 20 and the pump pressure frame 10 can avoid liquid accumulation interference and improve test accuracy. If a horizontal sealing base plate is used in related technologies, the leaked water will form liquid accumulation on the surface of the base plate, which may spread to the installation position of the adjacent cylinder head 2, causing the operator to misjudge multiple cylinder head 2 leaks. At the same time, the liquid accumulation covering the sealing surface for a long time may also seep into the gaps in non-leakage areas, affecting the sealing performance of subsequent tests.

[0029] The inclined sealing base plate reduces the intensity of operation, so the placement height of the cylinder head 2 presents a gradient from the lower side to the higher side. When the operator moves, for example, a 25 kg cylinder head 2, there is no need to bend over completely to push the cylinder head flat to the horizontal base plate. The cylinder head can be slid into the installation position gradually with the help of the inclined support, which is more labor-saving.

[0030] Preferably, multiple cylinder head 2 mounting positions are arranged side-by-side at intervals on the pump pressure sealing base plate 20.

[0031] Specifically, the pump pressure sealing base plate 20 preferably has eight cylinder head 2 mounting positions, and adopts a parallel spacing layout of eight columns in a row. Meanwhile, a conventional ship's single diesel engine usually has sixteen cylinder heads 2. In this embodiment, the eight parallel mounting positions can clamp eight cylinder heads 2 at the same time. Only two rounds of testing are needed to complete the testing of sixteen cylinder heads of one device, thereby greatly improving the efficiency of batch testing and adapting to the ship repair workload.

[0032] In a further preferred embodiment, each cylinder head 2 mounting position is provided with a limiting fastener 60 in the circumferential direction. The limiting fastener 60 is connected to the cylinder head 2 through a cooperation, thereby fixing the cylinder head 2 to the corresponding cylinder head 2 mounting position on the pump pressure sealing plate.

[0033] Specifically, the limiting and fixing component 60 includes multiple positioning screws 61, which are evenly distributed around the cylinder head 2 mounting position, and are arranged along the four corners of the cylinder head 2 mounting position.

[0034] Specifically, four positioning screws 61 are provided. The positioning screws 61 pass through the cylinder head 2 to fix the cylinder head 2 on the pump pressure sealing base plate 20, effectively preventing the cylinder head 2 from falling off.

[0035] Preferably, the pump pressure sealing base plate 20 has an opening 22 corresponding to each cylinder head 2 mounting position.

[0036] The position of the opening 22 is adapted to the cooling water chamber interface of the cylinder head 2 on the corresponding cylinder head 2 mounting position, so that the medium delivered by the water pump 30 can be introduced into the cooling water chamber of the cylinder head 2 through the opening 22. If there is a leak at the bottom of the cylinder head 2, water can drip out from the opening 22.

[0037] Preferably, the pump frame 10 is provided with at least one pipe support 11, see details below. Figure 1 In this application, the pump truck frame 10 preferably has three pipe supports 11. The pipe supports 11 are used to limit and fix the pipe 40 connecting to the water pump 30. The pipe 40 connecting to the water pump 30 includes a main pipe 41. The main pipe 41 is limited and fixed to the pump truck frame 10 by the pipe supports 11, and the pipe supports 11 make the main pipe 41 close to the pump truck frame 10. This is to standardize the layout of the pipe 40 and prevent the main pipe 41 from extending or deviating arbitrarily.

[0038] Preferably, the cylinder head pump pressure tool cart 1 also includes multiple pump pressure sealing plates 70, and the pipeline 40 also includes multiple branch pipelines 42. One end of each branch pipeline 42 is connected to the main pipeline 41, and the other end is connected to the corresponding pump pressure sealing plate 70. The pump pressure sealing plate 70 is used to achieve a sealed connection between the branch pipeline 42 and the cylinder head 2.

[0039] Specifically, the output end of each branch pipe 42 extends to the pump pressure sealing plate 70. The branch pipe 42 is sealed to the cylinder head 2 placed on the pump pressure sealing base plate 20 through the pump pressure sealing plate 70, so as to accurately introduce the test medium delivered by the main pipe 41 into the cooling water chamber of the corresponding cylinder head 2 through the branch pipe 42. Among them, the main pipe 41 extends into eight branch pipes 42. Once the electric water pump 30 is started, the main pipe 41 and the branch pipes 42 are connected in series, and the test medium at the same pressure can be injected into the eight cylinder heads 2 at the same time.

[0040] Furthermore, the pump pressure frame 10 is integrally welded from multiple square steel pipes and steel plates. Specifically, the pump pressure frame 10 is integrally welded from 60×40×t3 square steel pipes. At the same time, the pump pressure sealing base plate is integrally welded from 25mm thick Q235A steel plate to the pump pressure frame 10. Its self-weight and strength ensure stable pressure bearing and meet the welding requirements when the eight cylinder heads 2 are installed. The pump pressure sealing base plate 20 is cut and processed before welding to ensure that the working surface is flat and smooth and the sealing performance meets the requirements. Furthermore, the pipeline 40 is a pressure copper pipe to ensure the strength of the pipeline 40, so as to withstand the pressure of the test medium drawn out by the electric water pump 30.

[0041] Among them, see Figure 1 and Figure 2 The cylinder head pump press tool cart 1 also includes rollers 80 for moving the cylinder head pump press tool cart 1; the rollers 80 are connected to the bottom of the pump press cart frame 10. The pump press cart frame 10 contacts the ground through the rollers 80, so that the entire cylinder head pump press tool cart 1 can be moved along the ground under the action of external force, which is suitable for the transfer of cylinder head 2 and the adjustment of tooling position, and at the same time conforms to the ergonomic design to meet the comfort needs of construction personnel as much as possible during transportation.

[0042] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A cylinder head pump pressure tool cart for cylinder head sealing performance testing, characterized in that, include: A pump truck frame, which serves to support the overall structure of the tool cart and provide an installation base; A pump-pressure sealing base plate is fixedly connected to the pump-pressure vehicle frame. The pump-pressure sealing base plate is used to place and support the cylinder head, and the pump-pressure sealing base plate is inclined relative to the pump-pressure vehicle frame to form a flow guide slope. The flow guide slope is used to allow the leakage medium of the cylinder head to flow out along its surface. A water pump and a pipeline connected to the water pump, wherein the water pump is used to provide the pressure medium required for the sealing test, and the output end of the pipeline is used to connect to the cylinder head.

2. The cylinder head pump pressure tool cart as described in claim 1, characterized in that, The pump pressure sealing base plate has multiple cylinder head mounting positions arranged in parallel at intervals.

3. The cylinder head pump pressure tool cart as described in claim 2, characterized in that, Each of the cylinder head mounting positions is provided with a limiting and fixing component in the circumferential direction. The limiting and fixing component is connected to the cylinder head to fix the cylinder head in the corresponding cylinder head mounting position on the pump pressure sealing base plate.

4. The cylinder head pump pressure tool cart as described in claim 3, characterized in that, The limiting and fixing component includes multiple positioning screws, which are evenly distributed around the cylinder head mounting position, and are arranged along the four corners of the cylinder head mounting position.

5. The cylinder head pump pressure tool cart as described in claim 2, characterized in that, The pump pressure sealing base plate has an opening corresponding to each cylinder head mounting position.

6. The cylinder head pump pressure tool cart as described in claim 1, characterized in that, The pump truck frame is provided with at least one pipe clamp, which is used to limit and fix the pipe connected to the water pump; The pipeline connecting the water pump includes a main pipeline, which is fixed to the pump truck frame by means of pipeline brackets, and the pipeline brackets allow the main pipeline to be positioned close to the pump truck frame.

7. The cylinder head pump pressure tool cart as described in claim 6, characterized in that, The cylinder head pump pressure tool cart also includes multiple pump pressure sealing plates, and the pipeline also includes multiple branch pipelines. One end of each branch pipeline is connected to the main pipeline, and the other end is connected to the corresponding pump pressure sealing plate. The pump pressure sealing plate is used to achieve a sealed connection between the branch pipeline and the cylinder head.

8. The cylinder head pump press cart as described in any one of claims 1-7, characterized in that, The pump frame is constructed by integrally welding multiple square steel pipes and steel plates.

9. The cylinder head pump press cart as described in any one of claims 1-7, characterized in that, The pipeline is a pressure copper pipe.

10. The cylinder head pump press cart as described in any one of claims 1-7, characterized in that, It also includes rollers for moving the cylinder head pump pressure tool cart; The roller assembly is connected to the bottom of the pump truck frame.

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