Diesel engine pump body air tightness detection device

Abstract

The utility model belongs to the technical field of air tightness detection devices, and particularly relates to a diesel engine pump body air tightness detection device which comprises a detection platform, the top of the detection platform is fixedly connected with a supporting seat, a detection cylinder is installed at the top of the detection platform in an embedded mode, and detection liquid is added in the detection cylinder. A detection assembly is mounted on the detection cylinder; the hydraulic rod I is operated to enable the mounting seat to cover the detection cylinder, the hydraulic rod II is operated to push the sealing plate to rise to increase the liquid level of the detection liquid until the oil pump is immersed in the detection liquid for detection, and gas is introduced into the oil pump through the ventilation pipeline for a certain period of time. The liquid level is shot by the camera and displayed on the display device, so that detection personnel can observe whether bubbles emerge or not through the display device.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection devices, in particular to an air tightness detection device for a diesel engine pump body. Background Art

[0002] During the practical use of diesel engines, the oil passes directly through the pump chamber, so the air tightness requirements of the oil pump are high. After the oil pump is assembled, it needs to undergo an air tightness test.

[0003] The existing Chinese patent with announcement number CN215811448U discloses an oil pump air tightness detection device, which belongs to the field of tooling and fixtures, including a workbench with a working pool arranged on the workbench, a base plate, a movable side sealing plate and a movable blocking block arranged in the working pool, the base plate is a square plate, a sealing strip is arranged on the base plate, the sealing strip forms a semi-closed ring, a support block is arranged on the base plate, and the support block is arranged in the semi-closed ring surrounded by the sealing strip; a positioning pin is provided on the base plate, and the oil pump to be tested is positioned by the positioning pin; it also includes an upper clamping block that can move up and down, the upper clamping block is arranged above the support block, and the oil pump to be tested is pressed against the base plate by the clamping block.

[0004] In view of the above and existing related technologies, the inventors believe that the following defects often exist: after the device is tested, water stains remain on the outside of the oil pump and cannot be quickly removed, which requires improvement; therefore, to address the above problems, a diesel engine pump body air tightness detection device is proposed. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the utility model provides a diesel engine pump body air tightness detection device.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: a diesel engine pump body air tightness detection device described in the present invention includes a detection platform, the top of the detection platform is fixedly connected to a support seat, the top of the detection platform is embedded with a detection cylinder, detection liquid is added inside the detection cylinder, the depth of the detection liquid in the detection cylinder is slightly longer than the height of the oil pump, a detection component is installed on the detection cylinder, and the detection component includes a hydraulic rod 1 and a hydraulic rod 2, the hydraulic rod 1 is fixedly installed on the top of the support seat, the driving end of the hydraulic rod 1 is fixedly connected to the mounting seat, the bottom of the mounting seat is fixedly connected to a connecting rod, and the bottom end of the connecting rod is fixedly connected to the detection platform, the hydraulic rod 2 is fixedly installed At the bottom of the inspection cylinder, the driving end of the hydraulic rod 2 is fixedly connected with a sealing piston plate, a drying component is installed on the mounting seat, a camera is fixedly connected to the bottom of the mounting seat, and the camera is connected to a display device for communication. In the inspection room, the oil pump is placed on the inspection table, the ventilation pipe is connected to the oil inlet of the oil pump, and the oil outlet of the oil pump is blocked. The hydraulic rod 1 is operated to make the mounting seat cover close on the inspection cylinder. The hydraulic rod 2 is operated to push the sealing plate up to increase the liquid level of the inspection liquid until the oil pump is immersed in the inspection liquid for inspection. Gas is introduced into the oil pump through the ventilation pipe and maintained for a certain period of time. The liquid level is photographed by the camera and displayed on the display device for the inspection personnel to observe whether there are bubbles through the display device. If there are bubbles, it proves that the part is leaking and unqualified. If no bubbles emerge, it proves that the part is qualified.

[0007] Preferably, the diameter of the detection platform is smaller than the inner diameter of the detection cylinder, and the detection platform and the detection cylinder are coaxially arranged.

[0008] Preferably, a slot is provided on the surface of the test bench, the shape of the slot is consistent with the bottom shape of the pump body, and a number of protrusions are provided at the bottom of the slot to support the oil pump so that the hot air flow can flow from the bottom of the oil pump, thereby improving the drying effect. The slot is used to preliminarily limit the pump body.

[0009] Preferably, the bottom of the sealing piston plate is fixedly connected to a drain end, an electromagnetic valve is installed on the drain end, the bottom end of the drain end is fixedly connected to a drain pipe, and the drain pipe passes through the detection platform and extends to the outside, and the detection liquid can be discharged through the drain end.

[0010] Preferably, a ventilation pipe is fixedly connected to the surface of the mounting seat, one end of the ventilation pipe is fixedly connected to an air pump, the air pump is used to ventilate the inside of the oil pump, and an oil inlet airtight plug is provided at one end of the ventilation pipe connected to the oil inlet of the oil pump, and the oil inlet is sealed when the sealing joint is inserted into the oil inlet through the oil inlet airtight plug, and the oil outlet of the oil pump is also sealed by a matching oil outlet sealing joint.

[0011] Preferably, the drying assembly includes a drying tube and a reciprocating screw, the connecting rod passes through the drying tube, and a plurality of nozzles are fixedly connected to the inner wall of the drying tube, the drying tube is threadedly connected to the reciprocating screw, and the two ends of the reciprocating screw are rotatably connected to the mounting seat and the inspection table respectively. After the inspection is completed, the second hydraulic rod contracts to cause the inspection liquid to drop and leak out of the oil pump, the dryer is opened to inject hot air into the drying tube, and the hot air is sprayed out by the nozzle to quickly dry the surface of the oil pump, and at the same time, the operating driver drives the reciprocating screw to rotate, so that the drying tube can be reciprocated and lifted, thereby increasing the drying area and improving the effect of removing water stains on the surface of the oil pump. The blown-off water can be dropped and recovered, thereby reducing the waste of inspection liquid.

[0012] Preferably, a driver is fixedly connected to the top of the mounting seat, and the driving end of the driver is fixedly connected to the top of the reciprocating screw. An air inlet end is installed on the top of the drying pipe, and the air inlet end is connected to the dryer through a pipeline.

[0013] Preferably, the drying component also includes an electric push rod, which is fixedly mounted on a mounting seat, a driving end of the electric push rod is fixedly connected to a spring telescopic rod, and a bottom end of the spring telescopic rod is fixedly connected to a limit frame, the limit frame is located above the oil pump, and the shape of the limit frame can be set to be annular, or it can be consistent with the shape of the upper end of the oil pump, and the electric push rod is extended to drive the limit frame to descend until it presses down on the oil pump, thereby limiting the oil pump, and the elastic telescopic cooperation of the spring telescopic rod prevents excessive pressure from damaging the oil pump.

[0014] The utility model is beneficial in that:

[0015] 1. The utility model operates hydraulic rod 1 to close the mounting seat cover on the detection cylinder, and operates hydraulic rod 2 to push the sealing plate upward to increase the liquid level of the detection liquid until the oil pump is immersed in the detection liquid for detection. Gas is introduced into the oil pump through the ventilation pipe and maintained for a certain period of time. The liquid level is photographed by a camera and displayed on the display device, so that the detection personnel can observe whether there are bubbles through the display device.

[0016] 2. The utility model contracts the second hydraulic rod to cause the detection liquid to drop and leak out of the oil pump. The dryer is opened to inject hot air into the drying tube, and the hot air is sprayed out from the nozzle to quickly dry the surface of the oil pump. At the same time, the driver drives the reciprocating screw to rotate, causing the drying tube to rise and fall back and forth, thereby increasing the drying area and improving the effect of removing water stains on the surface of the oil pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a cross-sectional view of the detection platform of the utility model;

[0020] Figure 3 This is a cross-sectional view of the detection tube of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the drying component of the utility model;

[0022] Figure 5 For this utility model Figure 4 Bottom view of .

[0023] In the figure: 1. Detection platform; 2. Support base; 3. Detection cylinder; 4. Detection assembly; 41. Hydraulic rod one; 42. Hydraulic rod two; 43. Connecting rod; 44. Detection platform; 45. Sealing piston plate; 46. Slot; 47. Discharge end; 48. Mounting base; 5. Ventilation duct; 6. Drying assembly; 61. Drying tube; 62. Nozzle; 63. Reciprocating screw; 64. Electric push rod; 65. Spring telescopic rod; 66. Limiting frame; 7. Driver; 8. Camera. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0025] See also Figure 1-4As shown, a diesel engine pump body air tightness detection device includes a detection platform 1, the top of the detection platform 1 is fixedly connected to a support base 2, a detection cylinder 3 is embedded in the top of the detection platform 1, a detection liquid is added to the inside of the detection cylinder 3, a detection component 4 is installed on the detection cylinder 3, and the detection component 4 includes a hydraulic rod 1 41 and a hydraulic rod 2 42. The hydraulic rod 1 41 is fixedly installed on the top of the support base 2, the driving end of the hydraulic rod 1 41 is fixedly connected to the mounting base 48, the bottom of the mounting base 48 is fixedly connected to a connecting rod 43, and the bottom end of the connecting rod 43 is fixedly connected to the detection platform 44, the hydraulic rod 2 42 is fixedly installed on the bottom of the detection cylinder 3, and the driving end of the hydraulic rod 2 42 is fixedly connected There is a sealing piston plate 45, a drying component 6 is installed on the mounting seat 48, a camera 8 is fixedly connected to the bottom of the mounting seat 48, and the camera 8 is connected to the display device. The oil pump is placed on the test bench 44, the ventilation pipe 5 is connected to the oil inlet of the oil pump, and the oil outlet of the oil pump is blocked. The hydraulic rod 1 41 is operated to make the mounting seat 48 cover the detection cylinder 3. The hydraulic rod 2 42 is operated to push the sealing plate up to increase the liquid level of the detection liquid until the oil pump is immersed in the detection liquid for detection. Gas is introduced into the oil pump through the ventilation pipe 5 and maintained for a certain period of time. The liquid level is photographed by the camera 8 and displayed on the display device for the inspection personnel to observe whether there are bubbles through the display device. If there are bubbles, it proves that the part is leaking and unqualified. If no bubbles emerge, it proves that the part is qualified.

[0026] The diameter of the detection platform 44 is smaller than the inner diameter of the detection cylinder 3 , and the detection platform 44 and the detection cylinder 3 are coaxially arranged.

[0027] A slot 46 is provided on the surface of the testing table 44. The shape of the slot 46 is consistent with the bottom shape of the pump body. Several protrusions are provided at the bottom of the slot 46 to support the oil pump so that the hot air flow can flow from the bottom of the oil pump, thereby improving the drying effect. The slot 46 is used to preliminarily limit the pump body.

[0028] The bottom of the sealing piston plate 45 is fixedly connected to a drain end 47 , on which an electromagnetic valve is installed. The bottom of the drain end 47 is fixedly connected to a drain pipe, which passes through the detection platform 1 and extends to the outside. The detection liquid can be discharged through the drain end 47 .

[0029] The surface of the mounting seat 48 is fixedly connected to a ventilation pipe 5, one end of which is fixedly connected to an air pump, which is used to ventilate the inside of the oil pump. An oil inlet airtight plug is provided at one end of the ventilation pipe 5 connected to the oil inlet of the oil pump, and the oil inlet airtight plug is used to seal the oil inlet when the sealing joint is inserted into the oil inlet, and the oil outlet of the oil pump is also sealed by a matching oil outlet sealing joint. Example

[0030] For comparison with Example 1, please refer to Figure 4-5As shown, the utility model provides another embodiment, the drying component 6 includes a drying tube 61 and a reciprocating screw 63, the connecting rod 43 passes through the drying tube 61, and the inner wall of the drying tube 61 is fixedly connected with a plurality of nozzles 62, the drying tube 61 is threadedly connected to the reciprocating screw 63, and the two ends of the reciprocating screw 63 are respectively rotatably connected to the mounting seat 48 and the detection table 44. After the detection is completed, the hydraulic rod 42 contracts to cause the detection liquid to drop and leak out of the oil pump. The dryer is opened to inject hot air into the drying tube 61, and the hot air is sprayed out by the nozzle 62 to quickly dry the surface of the oil pump. At the same time, the driver 7 is operated to drive the reciprocating screw 63 to rotate, so that the drying tube 61 can be reciprocated and lifted, thereby increasing the drying area and improving the effect of removing water stains on the surface of the oil pump. The blown-off water can be dropped and recovered, thereby reducing the waste of detection liquid.

[0031] The top of the mounting base 48 is fixedly connected to the driver 7, and the driving end of the driver 7 is fixedly connected to the top of the reciprocating screw 63. The top of the drying tube 61 is equipped with an air inlet end, which is connected to the dryer through a pipeline.

[0032] The drying assembly 6 also includes an electric push rod 64, which is fixedly mounted on the mounting seat 48. The driving end of the electric push rod 64 is fixedly connected to a spring telescopic rod 65, and the bottom end of the spring telescopic rod 65 is fixedly connected to a limit frame 66. The limit frame 66 is located above the oil pump, and the shape of the limit frame 66 can be set to be annular, or it can be consistent with the shape of the upper end of the oil pump. The electric push rod 64 extends to drive the limit frame 66 to descend until it presses down on the oil pump, thereby limiting the oil pump, and the elastic expansion and contraction of the spring telescopic rod 65 prevents excessive pressure from damaging the oil pump.

[0033] Through the use of wires by those skilled in the art, all electrical components in this case are connected to their corresponding power supplies, and appropriate controllers should be selected according to actual conditions to electrically connect with hydraulic rod 1 41, hydraulic rod 2 42, driver 7, dryer, electric push rod 64, solenoid valve and other equipment to meet control requirements. For specific connections and control sequences, reference should be made to the following working principle, in which the electrical connections are completed in the order in which the electrical components work. The detailed connection methods are well known in the art. The following mainly introduces the working principles and processes, and does not explain the electrical control.

[0034] Working principle: Place the oil pump on the test bench 44, connect the ventilation pipe 5 to the oil inlet of the oil pump, and block the oil outlet of the oil pump. Operate the hydraulic rod 1 41 to make the mounting seat 48 cover the test cylinder 3. Operate the hydraulic rod 2 42 to push the sealing plate up to raise the liquid level of the test liquid until the oil pump is immersed in the test liquid for testing. Introduce gas into the oil pump through the ventilation pipe 5 and maintain it for a certain period of time. Use the camera 8 to capture the liquid level and display it on the display device for the inspector to observe whether there are bubbles. If there are bubbles, it proves that the part is leaking and unqualified. If there are no bubbles, it proves that the part is qualified.

[0035] After the inspection is completed, the hydraulic rod 2 42 contracts to cause the inspection liquid to drop and leak out of the oil pump. The dryer is opened to inject hot air into the drying tube 61, and the nozzle 62 sprays it to quickly dry the surface of the oil pump. At the same time, the driver 7 is operated to drive the reciprocating screw 63 to rotate, so that the drying tube 61 can be lifted and lowered back and forth, thereby increasing the drying area and improving the effect of removing water stains on the surface of the oil pump. The blown-off water can be dropped and recovered, thereby reducing the waste of inspection liquid.

[0036] During testing or drying, the electric push rod 64 extends to drive the limit frame 66 to descend until it presses down on the oil pump, thereby limiting the oil pump, and the spring telescopic rod 65 elastically expands and contracts to prevent excessive pressure from damaging the oil pump.

[0037] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A diesel engine pump body air tightness detection device, comprising a detection platform (1), characterized in that: The top of the detection platform (1) is fixedly connected to a support base (2), a detection cylinder (3) is embedded and installed on the top of the detection platform (1), and detection liquid is added inside the detection cylinder. A detection component (4) is installed on the detection cylinder (3), and the detection component (4) includes a hydraulic rod 1 (41) and a hydraulic rod 2 (42). The hydraulic rod 1 (41) is fixedly installed on the top of the support base (2), the driving end of the hydraulic rod 1 (41) is fixedly connected to the mounting base (48), the bottom of the mounting base (48) is fixedly connected to a connecting rod (43), and the bottom end of the connecting rod (43) is fixedly connected to the detection platform (44), the hydraulic rod 2 (42) is fixedly installed on the bottom of the detection cylinder (3), the driving end of the hydraulic rod 2 (42) is fixedly connected to a sealing piston plate (45), a drying component (6) is installed on the mounting base (48), and a camera (8) is fixedly connected below the mounting base (48).

2. The diesel engine pump body air tightness detection device according to claim 1, characterized in that: The diameter of the detection platform (44) is smaller than the inner diameter of the detection cylinder (3), and the detection platform (44) and the detection cylinder (3) are coaxially arranged.

3. The diesel engine pump body air tightness detection device according to claim 1, characterized in that: A slot (46) is provided on the surface of the detection platform (44), and the shape of the slot (46) is consistent with the shape of the bottom end of the pump body.

4. The diesel engine pump body air tightness detection device according to claim 1, characterized in that: The bottom of the sealing piston plate (45) is fixedly connected to a liquid discharge end (47), a solenoid valve is mounted on the liquid discharge end (47), and the bottom of the liquid discharge end (47) is fixedly connected to a liquid discharge pipe, which passes through the detection platform (1) and extends to the outside.

5. The diesel engine pump body air tightness detection device according to claim 1, characterized in that: A ventilation pipe (5) is fixedly connected to the surface of the mounting seat (48).

6. The diesel engine pump body air tightness detection device according to claim 1, characterized in that: The drying assembly (6) includes a drying tube (61) and a reciprocating screw (63), the connecting rod (43) passes through the drying tube (61), the inner wall of the drying tube (61) is fixedly connected to a plurality of nozzles (62), the drying tube (61) is threadedly connected to the reciprocating screw (63), and the two ends of the reciprocating screw (63) are rotatably connected to the mounting seat (48) and the detection table (44), respectively.

7. The diesel engine pump body air tightness detection device according to claim 6, characterized in that: The top of the mounting seat (48) is fixedly connected to a driver (7), and the driving end of the driver (7) is fixedly connected to the top of the reciprocating screw (63). The top of the drying pipe (61) is equipped with an air inlet end, and the air inlet end is connected to a dryer through a pipeline.

8. The diesel engine pump body air tightness detection device according to claim 6, characterized in that: The drying assembly (6) further comprises an electric push rod (64), the electric push rod (64) being fixedly mounted on the mounting seat (48), the driving end of the electric push rod (64) being fixedly connected to a spring telescopic rod (65), and the bottom end of the spring telescopic rod (65) being fixedly connected to a limiting frame (66).

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