Air tightness detection device for oil pump

Abstract

The utility model relates to the technical field of oil pump detection, and discloses an air tightness detection device of an oil pump, which comprises an air tightness detection assembly, and further comprises a butt joint assembly arranged on the air tightness detection assembly and used for moving to communicate oil pump interfaces with different calibers; the fixing assembly is arranged on the air tightness detection assembly and used for clamping and fixing the oil pump to be detected; wherein the air tightness detection assembly comprises a workbench, and the top of the workbench is provided with a detection main body mechanism; wherein the butt joint assembly comprises an air cylinder, the air cylinder is installed at the top of the air tightness detection assembly, one end of the air cylinder is connected with a fixing sleeve, an air pipe is arranged in the fixing sleeve, and the top of the air pipe is fixedly communicated with a connecting pipe. According to the design, the detection air pipe can be communicated with oil pump interfaces with different calibers, so that the application range of the air tightness detection device is expanded.

Description

Technical Field

[0001] This utility model relates to the field of oil pump testing technology, and more specifically, to an oil pump airtightness testing device. Background Technology

[0002] During the manufacturing process of oil pumps, a corresponding airtightness testing device is required to test the airtightness of the oil pump. The current testing method involves connecting the oil pump interface to a testing air pipe, then inputting gas into the pump, and judging whether the oil pump's sealing performance is up to standard based on the readings displayed on the main testing mechanism. However, in the process of connecting the testing air pipe to the oil pump interface, because the diameter of the testing air pipe is fixed, it can only connect to oil pump interfaces of a fixed diameter, thus preventing its connection to oil pump interfaces of different diameters. This reduces the application range of the airtightness testing device, and therefore, improvements are needed. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides an airtightness testing device for an oil pump, which has the advantage of wide application range.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an airtightness testing device for an oil pump, comprising an airtightness testing component, and further comprising:

[0005] The docking assembly, which is mounted on the airtightness testing assembly, is used to move and connect oil pump interfaces of different diameters.

[0006] A fixing component, which is mounted on the airtightness testing component, is used to clamp and fix the oil pump being tested;

[0007] The airtightness testing component includes a workbench, and a testing main body mechanism is provided on the top of the workbench.

[0008] The docking assembly includes a cylinder mounted on top of the airtightness testing assembly. One end of the cylinder is connected to a fixed sleeve, and an air pipe is installed inside the fixed sleeve. A connecting pipe is fixedly connected to the top of the air pipe, and the top end of the connecting pipe extends above the fixed sleeve. The left end of the air pipe is connected to the connecting sleeve. Movable rods are fitted into the inner walls on both sides of the connecting sleeve. One end of the movable rod is connected to a clamping block located inside the connecting sleeve, and a rubber pad is connected to the inner side of the clamping block. The other end of the movable rod is connected to a mounting block located outside the connecting sleeve.

[0009] As a preferred embodiment of this utility model, the outer surface of the trachea is movably fitted with a movable plate located inside the fixed sleeve. A rubber pad is provided on the left side of the movable plate, and a limiting rod is connected to the right side of the movable plate. The other end of the limiting rod extends to the outside of the fixed sleeve.

[0010] As a preferred embodiment of this utility model, a spring is sleeved on the outer surface of the limiting rod, one end of the spring is connected to the movable plate, and the other end of the spring is connected to the inner wall of the fixed sleeve.

[0011] As a preferred technical solution of this utility model, a threaded rod is movably sleeved in the inner wall on both sides of the connecting sleeve, the other end of the threaded rod passes through the mounting block and is connected to a knob, and the outer surface of the threaded rod is sleeved with the internal thread of the mounting block.

[0012] As a preferred embodiment of this utility model, the fixing component includes a support base, which is disposed inside the workbench. A bidirectional hydraulic cylinder is installed on the top of the support base, and both ends of the bidirectional hydraulic cylinder are connected to moving blocks.

[0013] As a preferred embodiment of this utility model, connecting frames are fixedly connected to both sides of the top of the movable block. The top of the connecting frame extends above the workbench and can move left and right. A clamping plate located above the workbench is connected to the inner side of the connecting frame, and a rubber pad is connected to the inner side of the clamping plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model, by setting up an air pipe and clamping block, allows the operator to connect the connecting pipe to the detection main body mechanism through the detection air pipe. Due to the operation of the cylinder, the fixed sleeve can drive the air pipe and connecting pipe to move to the left, allowing the oil pump interface to enter the interior of the connecting sleeve and fixed sleeve. Then, as the fixed sleeve moves, the interface contacts the first rubber pad, squeezing and pushing the first rubber pad, the movable plate, and the limiting rod to move to the right. At the same time, the spring is compressed. Due to the spring's elasticity and restoring effect, the movable plate and the first rubber pad are pushed to the left and tightly fit with the interface, thus ensuring the interface's sealing. The operator can rotate the knob to rotate the threaded rod. Due to the rotation of the threaded rod, the mounting block can move inward along the thread on the outer surface of the threaded rod, and through the moving rod, it can drive the clamping block and the second rubber pad to move inward, thereby clamping and fixing the oil pump interfaces of different diameters. This design allows the detection air pipe to connect to oil pump interfaces of different diameters, thereby improving the application range of this airtightness detection device.

[0016] 2. This utility model, by setting up a connecting frame, clamping plate, and rubber pad three, allows the two-way hydraulic cylinder to move inwards due to its operation. At this time, the two moving blocks will move towards each other. Due to the movement of the moving blocks, the connecting frame can be moved inside the worktable, and the connecting frame can drive the clamping plate and rubber pad three to move inwards. Finally, the movement of the clamping plate and rubber pad three clamps and fixes the oil pump as a whole on the worktable. This design can fix the oil pump as a whole and prevent the oil pump from moving accidentally during testing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 for Figure 2 A magnified schematic diagram of the local structure at point A;

[0020] Figure 4 This is a cross-sectional view of the fixing sleeve of this utility model;

[0021] Figure 5 This is a cross-sectional view of the connecting sleeve of this utility model;

[0022] Figure 6 This is a cross-sectional view of the movable block of this utility model.

[0023] In the diagram: 1. Air tightness testing component; 11. Workbench; 12. Testing main body mechanism; 2. Docking component; 21. Cylinder; 22. Fixing sleeve; 23. Air pipe; 24. Connecting pipe; 25. Movable plate; 26. Rubber pad one; 27. Limiting rod; 28. Spring; 29. ​​Connecting sleeve; 210. Moving rod; 211. Mounting block; 212. Threaded rod; 213. Knob; 214. Clamping block; 215. Rubber pad two; 3. Fixing component; 31. Support base; 32. Two-way hydraulic cylinder; 33. Moving block; 34. Connecting frame; 35. Clamping plate; 36. Rubber pad three. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 6As shown, this utility model provides an airtightness testing device for an oil pump, including an airtightness testing component 1, and further comprising:

[0026] The docking component 2, which is mounted on the airtightness detection component 1, is used to move and connect oil pump interfaces of different diameters.

[0027] The fixing component 3 is set on the airtightness detection component 1 and is used to clamp and fix the oil pump being tested.

[0028] The airtightness testing component 1 includes a workbench 11, and a testing main body mechanism 12 is provided on the top of the workbench 11.

[0029] The docking assembly 2 includes a cylinder 21, which is installed on top of the airtightness testing assembly 1. One end of the cylinder 21 is connected to a fixing sleeve 22. An air pipe 23 is provided inside the fixing sleeve 22. A connecting pipe 24 is fixedly connected to the top of the air pipe 23. The top end of the connecting pipe 24 extends above the fixing sleeve 22. The left end of the air pipe 23 is connected to a connecting sleeve 29. A moving rod 210 is fitted in the inner wall on both sides of the connecting sleeve 29. One end of the moving rod 210 is connected to a clamping block 214 located inside the connecting sleeve 29. A rubber pad 215 is connected to the inner side of the clamping block 214. The other end of the moving rod 210 is connected to an mounting block 211 located outside the connecting sleeve 29.

[0030] In use, the operator connects the connecting pipe 24 to the detection main body mechanism 12 through the detection air pipe. Due to the operation of the cylinder 21, the fixed sleeve 22 can drive the air pipe 23 and the connecting pipe 24 to the left, and the oil pump interface enters the interior of the connecting sleeve 29 and the fixed sleeve 22. Then the mounting block 211 moves inward, and the moving rod 210 drives the clamping block 214 and the rubber pad 215 to move inward, thereby clamping and fixing the oil pump interfaces of different diameters, so that the detection air pipe can be connected to the oil pump interfaces of different diameters.

[0031] The outer surface of the trachea 23 is movably fitted with a movable plate 25 located inside the fixed sleeve 22. A rubber pad 26 is provided on the left side of the movable plate 25, and a limit rod 27 is connected to the right side of the movable plate 25. The other end of the limit rod 27 extends to the outside of the fixed sleeve 22.

[0032] By setting the movable plate 25, when the oil pump interface enters the interior of the connecting sleeve 29 and the fixed sleeve 22, as the fixed sleeve 22 moves, the interface contacts the rubber pad 26 and squeezes and pushes the rubber pad 26, the movable plate 25 and the limiting rod 27 to move to the right. At this time, the limiting rod 27 can play a good limiting role for the movable plate 25 and the rubber pad 26.

[0033] Among them, a spring 28 is sleeved on the outer surface of the limiting rod 27. One end of the spring 28 is connected to the movable plate 25, and the other end of the spring 28 is connected to the inner wall of the fixed sleeve 22.

[0034] By setting spring 28, when the movable plate 25 moves to the right, spring 28 can be compressed. Due to the elasticity of spring 28, the movable plate 25 and rubber pad 26 can be pushed to the left and fit tightly with the interface, thereby ensuring the sealing of the interface.

[0035] Among them, threaded rods 212 are movably sleeved in the inner walls on both sides of the connecting sleeve 29. The other end of the threaded rod 212 passes through the mounting block 211 and is connected to a knob 213. The outer surface of the threaded rod 212 is sleeved with the internal thread of the mounting block 211.

[0036] By setting the threaded rod 212, the operator can rotate the knob 213 to make the threaded rod 212 rotate. Due to the rotation of the threaded rod 212, the mounting block 211 can move inward along the thread on the outer surface of the threaded rod 212, and drive the clamping block 214 and the rubber pad 215 to move inward through the moving rod 210, thereby controlling the movement of the clamping block 214.

[0037] The fixed component 3 includes a support base 31, which is located inside the workbench 11. A bidirectional hydraulic cylinder 32 is installed on the top of the support base 31, and both ends of the bidirectional hydraulic cylinder 32 are connected to moving blocks 33.

[0038] By setting the moving block 33, the operation of the bidirectional hydraulic cylinder 32 can cause the bidirectional hydraulic cylinder 32 to move the two moving blocks 33 inward. At this time, the two moving blocks 33 will move towards each other, thereby driving the moving block 33.

[0039] The top of the movable block 33 is fixedly connected to both sides of the connecting frame 34. The top of the connecting frame 34 extends above the workbench 11 and can move left and right. The inner side of the connecting frame 34 is connected to the clamping plate 35 located above the workbench 11. The inner side of the clamping plate 35 is connected to the rubber pad 36.

[0040] By setting rubber pad 36, the movement of moving block 33 can drive connecting frame 34 to move inside workbench 11, and the connecting frame 34 can drive clamping plate 35 and rubber pad 36 to move inward, so that the oil pump can be clamped and fixed on workbench 11 by the movement of clamping plate 35 and rubber pad 36.

[0041] Working principle and usage process of this utility model:

[0042] When fixation is required, the operation of the bidirectional hydraulic cylinder 32 can cause the two moving blocks 33 to move inward. At this time, the two moving blocks 33 will move towards each other. Due to the movement of the moving blocks 33, the connecting frame 34 can move inside the worktable 11, and through the connecting frame 34, the clamping plate 35 and the rubber pad 36 can move inward. Finally, through the movement of the clamping plate 35 and the rubber pad 36, the oil pump is clamped and fixed on the worktable 11. This design can fix the oil pump as a whole.

[0043] In use, the operator connects the connecting pipe 24 to the detection main body mechanism 12 through the detection air pipe. Due to the operation of the cylinder 21, the fixed sleeve 22 can drive the air pipe 23 and the connecting pipe 24 to the left, allowing the oil pump interface to enter the interior of the connecting sleeve 29 and the fixed sleeve 22. Then, as the fixed sleeve 22 moves, the interface contacts the rubber pad 26, squeezing and pushing the rubber pad 26, the movable plate 25, and the limit rod 27 to the right, while simultaneously compressing the spring 28. Due to the elasticity of the spring 28... The force recovery action allows the movable plate 25 and the rubber pad 26 to be pushed to the left and fit tightly against the interface, thus ensuring the sealing of the interface. When the operator rotates the knob 213, the threaded rod 212 will rotate. Due to the rotation of the threaded rod 212, the mounting block 211 will move inward along the thread on the outer surface of the threaded rod 212, and through the moving rod 210, it will drive the clamping block 214 and the rubber pad 215 to move inward, thereby clamping and fixing the oil pump interfaces of different diameters.

[0044] During testing, air is supplied to the oil pump through the main testing mechanism 12. The air tightness of the oil pump can be determined by the display value of the main testing mechanism 12.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An airtightness testing device for an oil pump, comprising an airtightness testing component (1), characterized in that, It also includes: The docking component (2) is mounted on the airtightness testing component (1) and is used to move and connect oil pump interfaces of different diameters. The fixing component (3) is set on the airtightness detection component (1) and is used to clamp and fix the oil pump being tested; The airtightness testing component (1) includes a workbench (11), and a testing main body mechanism (12) is provided on the top of the workbench (11). The docking assembly (2) includes a cylinder (21), which is installed on the top of the airtightness testing assembly (1). One end of the cylinder (21) is connected to a fixing sleeve (22). An air pipe (23) is provided inside the fixing sleeve (22). A connecting pipe (24) is fixedly connected to the top of the air pipe (23). The top end of the connecting pipe (24) extends to the top of the fixing sleeve (22). The left end of the air pipe (23) is connected to a connecting sleeve (29). A moving rod (210) is sleeved in the inner wall on both sides of the connecting sleeve (29). One end of the moving rod (210) is connected to a clamping block (214) located inside the connecting sleeve (29). A rubber pad (215) is connected to the inner side of the clamping block (214). The other end of the moving rod (210) is connected to an mounting block (211) located outside the connecting sleeve (29).

2. The airtightness testing device for an oil pump according to claim 1, characterized in that: The outer surface of the trachea (23) is movably fitted with a movable plate (25) located inside the fixed sleeve (22). A rubber pad (26) is provided on the left side of the movable plate (25), and a limiting rod (27) is connected to the right side of the movable plate (25). The other end of the limiting rod (27) extends to the outside of the fixed sleeve (22).

3. The airtightness testing device for an oil pump according to claim 2, characterized in that: A spring (28) is fitted on the outer surface of the limiting rod (27). One end of the spring (28) is connected to the movable plate (25), and the other end of the spring (28) is connected to the inner wall of the fixed sleeve (22).

4. The airtightness testing device for an oil pump according to claim 1, characterized in that: A threaded rod (212) is movably sleeved in the inner wall on both sides of the connecting sleeve (29). The other end of the threaded rod (212) passes through the mounting block (211) and is connected to a knob (213). The outer surface of the threaded rod (212) is sleeved with the internal thread of the mounting block (211).

5. The airtightness testing device for an oil pump according to claim 1, characterized in that: The fixing component (3) includes a support base (31) which is located inside the workbench (11). A two-way hydraulic cylinder (32) is installed on the top of the support base (31), and both ends of the two-way hydraulic cylinder (32) are connected to moving blocks (33).

6. The airtightness testing device for an oil pump according to claim 5, characterized in that: The top of the movable block (33) is fixedly connected to both sides of the connecting frame (34). The top of the connecting frame (34) extends to the top of the workbench (11) and can move left and right. The inner side of the connecting frame (34) is connected to the clamp plate (35) located above the workbench (11). The inner side of the clamp plate (35) is connected to the rubber pad (36).

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