Detection device of high-pressure oil pump

Abstract

The utility model relates to a detection device for a high-pressure oil pump, and the device comprises a support which is used for installing an oil pump body; the water tank is arranged below the oil pump body, and the oil pump body can be immersed into the water tank; and the air source is used for being connected with the air inlet of the oil pump body, and the air outlet of the oil pump body is closed. When detection is needed, the oil pump body to be detected is installed on the support and immersed below the water surface in the water tank, the air source is used for inflating and pressing the oil pump body, whether the oil pump body leaks air or not is observed, the air tightness of the oil pump body is detected, the oil pump body does not need to be installed on a special test vehicle, and use is convenient and fast.

Description

Technical Field

[0001] This disclosure relates to the field of high-pressure oil pump testing technology, and more specifically, to a testing device for high-pressure oil pumps. Background Technology

[0002] The high-pressure oil pump is one of the important components for the normal operation of the engine. When testing the high-pressure oil pump, it is necessary to install the high-pressure oil pump to be tested on the test vehicle. However, this disassembly and installation of the high-pressure oil pump takes a long time, is complicated to operate, and cannot visually confirm whether there is a problem with the sealing inside the high-pressure oil pump. Utility Model Content

[0003] The purpose of this disclosure is to provide a testing device for a high-pressure oil pump that can solve the aforementioned technical problems.

[0004] To achieve the above objectives, this disclosure provides a testing device for a high-pressure oil pump, comprising: a bracket for mounting the oil pump body; a water tank disposed below the oil pump body and the oil pump body being immersable in the water tank; and an air source for connecting to the air inlet of the oil pump body, wherein the air outlet of the oil pump body is closed.

[0005] Optionally, the detection device further includes a pressure gauge for connection to the air outlet of the oil pump body.

[0006] Optionally, the bracket includes a height-adjustable mounting portion, on which the oil pump body is mounted.

[0007] Optionally, the bracket further includes a support rod and a fixing member. The support rod is vertically arranged, and the mounting part is constructed as a mounting rod. The mounting rod is arranged perpendicularly to the support rod. One end of the mounting rod is sleeved on the support rod and fixed by the fixing member, and the other end is used to mount the oil pump body.

[0008] Optionally, the detection device further includes a cylinder, and the bracket further includes a first mounting base. The cylinder is mounted on the end of the mounting part via the first mounting base, with the telescopic end of the cylinder facing the water tank. The oil pump body is located at the telescopic end of the cylinder and is drivenly connected to the telescopic end of the cylinder.

[0009] Optionally, the bracket further includes a second mounting base, one end of which is connected to the cylinder body on one side of the cylinder with a telescopic end, and the other end is used to connect to the oil pump body, and the telescopic end of the cylinder is connected to the piston of the oil pump body.

[0010] Optionally, the outlet of the air source is connected to a T-junction to divide the air path into a first air path and a second air path. The first air path is used to connect to the air inlet of the oil pump body, and the second air path is connected to the cylinder.

[0011] Optionally, the detection device further includes a solenoid valve and a pneumatic switch. The solenoid valve is disposed in the second air path to divide the second air path into a third air path and a fourth air path. The pneumatic switch is electrically connected to the solenoid valve. The third air path is connected to the air inlet end of the cylinder, and the fourth air path is connected to the air outlet end of the cylinder.

[0012] Optionally, the oil pump body is provided with a regulating valve to divide the oil pump body into a high-pressure zone and a low-pressure zone. The air inlet of the high-pressure zone and the low-pressure zone are both connected to the air inlet of the oil pump body, and the air outlet of the high-pressure zone and the low-pressure zone are both connected to the air outlet of the oil pump body. The detection device also includes a regulating switch, which is used to electrically connect to the regulating valve.

[0013] Optionally, the water tank is constructed as a transparent water tank.

[0014] With the above technical solution, when testing is required, the oil pump body to be tested is installed on the bracket and immersed below the water surface in the water tank. The oil pump body is pressurized by an air source, and the air leakage of the oil pump body is observed to test the airtightness of the oil pump body. There is no need to install the oil pump body on a special test vehicle, which is convenient and quick to use.

[0015] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the testing device for the high-pressure oil pump disclosed in this invention;

[0018] Figure 2 This is a side view of the testing device for the high-pressure oil pump disclosed herein.

[0019] Explanation of reference numerals in the attached figures

[0020] 1. Cylinder; 2. Oil pump body; 21. Air inlet; 22. Air outlet; 3. Pressure gauge; 4. Bracket; 41. Support rod; 42. Mounting part; 43. Fixture; 5. First mounting base; 6. Second mounting base; 7. Solenoid valve; 8. Pneumatic switch; 9. Adjusting switch; 10. Water tank; 11. Air source; 12. T-junction; 13. Air passage; 131. First air passage; 132. Second air passage; 133. Third air passage; 134. Fourth air passage. Detailed Implementation

[0021] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0022] In this disclosure, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" generally refer to the upper, lower, top, and bottom of the corresponding component in its operational state in the direction of gravity, while "inner" and "outer" refer to the inner and outer contours relative to the component or structure itself. Furthermore, it should be noted that terms such as "first" and "second" are used to distinguish one element from another and do not indicate sequence or importance. Additionally, in the description with reference to the accompanying drawings, the same reference numerals in different drawings denote the same element.

[0023] like Figure 1-2 As shown, this disclosure provides a testing device for a high-pressure oil pump, including: a bracket 4 for mounting an oil pump body 2; a water tank 10 disposed below the oil pump body 2 and the oil pump body 2 can be immersed in the water tank 10; and an air source 11 for connecting to the air inlet 21 of the oil pump body 2, and the air outlet 22 of the oil pump body 2 is closed.

[0024] With the above technical solution, when testing is required, the oil pump body 2 to be tested is installed on the bracket 4 and immersed below the water surface in the water tank 10. The oil pump body 2 is pressurized by the air source 11, and the air leakage of the oil pump body 2 is observed to test the air tightness of the oil pump body 2. There is no need to install the oil pump body 2 on a special test vehicle, which is convenient and quick to use.

[0025] As an optional implementation method, such as Figure 1 As shown, the testing device also includes a pressure gauge 3, which is connected to the air outlet 22 of the oil pump body 2. The pressure gauge 3 is used to detect the pressure of the air source 11 until it is pressurized to the same pressure as the actual pressure of the oil pump body 2 on the engine. Then, the air tightness of the oil pump body 2 is observed to ensure that the oil pump body 2 will not leak during actual use.

[0026] As an optional implementation method, such as Figure 2As shown, the bracket 4 includes a height-adjustable mounting part 42, and the oil pump body 2 is mounted on the mounting part 42. That is, the height of the oil pump body 2 is adjustable. First, the oil pump body 2 is installed. After installation, the oil pump body 2 is moved downward so that the oil pump body 2 is submerged below the water surface in the water tank 10. After the test is completed, the oil pump body 2 is raised.

[0027] Optionally, such as Figure 2 As shown, the bracket 4 also includes a support rod 41 and a fixing member 43. The support rod 41 is vertically arranged, and the mounting part 42 is constructed as a mounting rod. The mounting rod is arranged perpendicularly to the support rod 41. One end of the mounting rod is sleeved on the support rod 41 and fixed by the fixing member 43. The other end is used to install the oil pump body 2. The mounting rod is sleeved on the support rod 41 and slidably connected to the support rod 41. After being adjusted to a suitable height, it is fixed by the fixing member 43. For example, the fixing member 43 is a fastening bolt. One end of the fastening bolt passes through the part of the mounting rod sleeved on the support rod 41 from the outside to the inside and abuts against the support rod 41.

[0028] Optionally, such as Figure 1-2 As shown, the detection device also includes a cylinder 1, and the bracket 4 includes a first mounting seat 5. The cylinder 1 is mounted on the end of the mounting portion 42 via the first mounting seat 5. For example, the edge of the first mounting seat 5 can be connected to the mounting portion 42 by bolts, and the cylinder 1 can be bolted to the portion of the first mounting seat 5 extending beyond the mounting portion 42. Alternatively, the first mounting seat 5 can be placed at the top of the mounting portion 42, and the cylinder 1 can be placed at the bottom of the mounting portion 42, and then the first mounting seat 5 can be connected to the cylinder 1 by bolts. The telescopic end of the cylinder 1 faces the water tank 10, and the oil pump body 2 is located at the telescopic end of the cylinder 1 and is driven by the telescopic end of the cylinder 1. In actual use, the high-pressure oil pump on the engine is driven by the piston through the camshaft, driving the piston to move. This disclosure uses the cylinder 1 to drive the piston movement of the oil pump body 2 to simulate the situation of the oil pump body 2 in actual use, so as to ensure more accurate detection.

[0029] Optionally, such as Figure 1-2 As shown, the bracket 4 also includes a second mounting seat 6. One end of the second mounting seat 6 is connected to the cylinder body of the cylinder 1 with the telescopic end, and the other end is used to connect to the oil pump body 2. The telescopic end of the cylinder 1 is connected to the piston of the oil pump body 2. The oil pump body 2 is fixed on the cylinder 1 through the second mounting seat 6 to prevent the oil pump body 2 and the telescopic end of the cylinder 1 from moving synchronously, so that the piston cannot move up and down normally.

[0030] Optionally, such as Figure 1As shown, the outlet of the air source 11 is connected to a three-way valve 12 to divide the air path 13 into a first air path 131 and a second air path 132. The first air path 131 is used to connect to the air inlet 21 of the oil pump body 2, and the second air path 132 is connected to the cylinder 1. One air source 11 can supply air to both the cylinder 1 and the oil pump body 2 at the same time, eliminating the need to set up separate air sources 11 for the cylinder 1 and the oil pump body 2, thus saving costs and facilitating operation.

[0031] Optionally, such as Figure 1 As shown, the detection device also includes a solenoid valve 7 and a pneumatic switch 8. The solenoid valve 7 is installed on the second air passage 132 to divide the second air passage 132 into a third air passage 133 and a fourth air passage 134. The pneumatic switch 8 is electrically connected to the solenoid valve 7. The third air passage 133 is connected to the air inlet end of the cylinder 1, and the fourth air passage 134 is connected to the air outlet end of the cylinder 1. The pneumatic switch 8 controls the opening and closing of the solenoid valve 7 to control the air intake and exhaust of the cylinder 1, thereby controlling the extension and retraction of the telescopic end of the cylinder 1. For example, the solenoid valve 7 is a two-position five-way solenoid valve. The air outlet end of the second air passage 132 is connected to the air inlet end of the solenoid valve 7, and the air inlets of the third air passage 133 and the fourth air passage 134 are respectively connected to the two air outlet ends of the solenoid valve 7.

[0032] As an optional implementation, the oil pump body 2 is equipped with a regulating valve to divide the oil pump body 2 into a high-pressure zone and a low-pressure zone. The air inlet of both the high-pressure zone and the low-pressure zone is connected to the air inlet 21 of the oil pump body 2, and the air outlet of both the high-pressure zone and the low-pressure zone is connected to the air outlet 22 of the oil pump body 2. The detection device also includes a regulating switch 9, which is used to electrically connect to the regulating valve. The regulating valve is an electric valve. By adjusting the regulating switch 9, the high and low pressure zones of the oil pump body 2 are connected to the air inlet 21 and the air outlet 22 respectively, so as to test the high-pressure zone and the low-pressure zone respectively.

[0033] As an optional implementation, the water tank 10 is constructed as a transparent water tank 10, which facilitates observation.

[0034] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0035] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0036] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A testing device for a high-pressure oil pump, characterized in that, The detection device comprises: a support for mounting an oil pump body; a water tank arranged below the oil pump body and into which the oil pump body can be immersed; and an air source for connecting with an air inlet of the oil pump body, and an air outlet of the oil pump body is closed. The detection device further comprises a pressure gauge for connecting at the air outlet of the oil pump body.

2. The detection device of a high-pressure oil pump according to claim 1, characterized by The support comprises a height-adjustable mounting portion on which the oil pump body is mounted.

3. The detection device of a high-pressure oil pump according to claim 1 or 2, characterized in that, The support further comprises a support rod arranged vertically, a mounting rod arranged perpendicularly to the support rod, one end of the mounting rod being sleeved on the support rod and fixed by a fixing member, and the other end being used for mounting the oil pump body.

4. The detection device of a high-pressure oil pump according to claim 3, characterized by The detection device further comprises a cylinder, and the support further comprises a first mounting base, the cylinder being mounted at an end of the mounting portion by the first mounting base, a telescopic end of the cylinder being arranged towards the water tank, and the oil pump body being arranged at the telescopic end of the cylinder and drivingly connected with the telescopic end of the cylinder.

5. The detection device of a high-pressure oil pump according to claim 4, characterized by The support further comprises a second mounting base, one end of the second mounting base being connected with a side cylinder body of the cylinder provided with the telescopic end, and the other end being used for connecting with the oil pump body and the telescopic end of the cylinder being connected with a piston of the oil pump body.

6. The detection device of a high-pressure oil pump according to claim 5, characterized by An outlet end of the air source is connected with a three-way joint to divide an air path into a first air path and a second air path, the first air path being used for connecting with the air inlet of the oil pump body, and the second air path being connected with the cylinder.

7. The detection device of a high-pressure oil pump according to claim 5, characterized by The detection device further comprises a solenoid valve and a pneumatic switch, the solenoid valve being arranged on the second air path to divide the second air path into a third air path and a fourth air path, the pneumatic switch being electrically connected with the solenoid valve, the third air path being connected with an air inlet end of the cylinder, and the fourth air path being connected with an air outlet end of the cylinder.

8. The detection device of a high-pressure oil pump according to claim 7, characterized by The oil pump body is provided with an adjusting valve to divide the oil pump body into a high-pressure area and a low-pressure area, air inlet ends of the high-pressure area and the low-pressure area being connected with the air inlet of the oil pump body, and air outlet ends of the high-pressure area and the low-pressure area being connected with the air outlet of the oil pump body, and the detection device further comprises an adjusting switch for electrically connecting with the adjusting valve.

9. The detection device of a high-pressure oil pump according to claim 1, characterized by The water tank is configured as a transparent water tank.

10. The detection device of a high-pressure oil pump according to claim 1, characterized by ​

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