Airtightness detection equipment for engine cylinder block production

Abstract

The utility model relates to the field of engine airtightness detection equipment, in particular to airtightness detection equipment for engine cylinder body production, and solves the technical problems that the existing airtightness detection equipment for engine cylinder body production can only perform overall airtightness detection and cannot inspect an independent cylinder body, so that a leaked cylinder cannot be accurately found out; according to the technical scheme, the airtightness detection equipment for engine cylinder block production comprises a supporting base, supporting legs, a supporting platform, a detection assembly, a recovery assembly, a lifting assembly and a moving assembly; according to the utility model, the original integrated detection device is improved into a mode of independently detecting the airtightness of the cylinders of the engine cylinder body, and the airtightness of the four cylinders can be detected at the same time, so that which cylinder leaks can be accurately observed; the problem that a leaked cylinder cannot be accurately found due to the fact that existing airtightness detection equipment for engine cylinder body production can only perform overall airtightness detection and cannot inspect an independent cylinder body is solved.

Description

Technical Field

[0001] The utility model belongs to the field of engine airtightness detection equipment, and in particular relates to an airtightness detection equipment for engine cylinder body production. Background Art

[0002] The engine converts internal energy into mechanical kinetic energy by burning fuel to provide power for the vehicle. In order to avoid air leakage in the engine cylinder, which leads to increased fuel consumption, decreased heart rate and increased emissions, airtightness testing equipment is often required to perform airtightness testing on the engine cylinder during the production process.

[0003] At present, the existing air tightness detection can only test the entire engine when testing the air tightness of the engine cylinder block. However, most existing engines are four-cylinder types, and it is impossible to accurately find the faulty cylinder block. Subsequent testing is required, resulting in low detection efficiency.

[0004] Therefore, in view of the problem that the existing engine air tightness detection equipment is unable to detect a single cylinder block and needs a lot of time to find the leaking cylinder among the four cylinders, resulting in low detection efficiency, an engine cylinder block production air tightness detection equipment is designed, which can perform air tightness detection on each of the four cylinders individually, so as to accurately find the leaking cylinder and improve the detection efficiency. Utility Model Content

[0005] In order to overcome the problem that the existing air tightness detection equipment used in engine cylinder production can only perform overall air tightness detection and cannot inspect individual cylinders, resulting in the inability to accurately identify the leaking cylinder.

[0006] The technical solution of the utility model is: an airtightness detection equipment for engine cylinder production, including a support base, legs, a support platform, a detection component, a recovery component, a lifting component, and a moving component; the bottom end of the support base is fixedly connected to the legs, a support platform is installed on the support base, a monitoring component is arranged on the support platform, a recovery component is arranged on the support platform, a lifting component for adjusting the height of the detection component and the recovery component is installed on the support base, and a moving component for adjusting the detection component and the recovery component and located above the support base is installed on the lifting component.

[0007] Preferably, an air tightness testing device for engine cylinder block production is designed, in which the lifting assembly drives the testing assembly to move downward to above the engine cylinder block, and the four cylinders of the engine are tested for air tightness. After the test is completed, the testing assembly is removed from the supporting platform by the lifting assembly in cooperation with the moving assembly, and the recovery assembly is moved above the supporting platform, and the gasoline used for the air tightness test is recovered by the recovery assembly.

[0008] Preferably, the detection component includes a sealing cylinder and a sealing gasket; an engine cylinder block with valves and spark plugs installed is placed on the supporting platform, a sealing cylinder is provided on the engine cylinder block, a rubber sealing gasket is fixedly bonded to the bottom end of the sealing cylinder, and the airtight cylinder can protect the internal oil filling pipe. The sealing gasket cooperates with the generator cylinder block for airtight detection. The sealing gasket is made of rubber and has a soft texture and will not leave marks on the engine cylinder block.

[0009] Preferably, the detection component also includes a No. 1 oil storage tank and an oil filling pipe; a No. 1 oil storage tank filled with gasoline is arranged above the sealing cylinder, and an oil filling pipe located in the sealing cylinder is inserted into the bottom end of the No. 1 oil storage tank, and the gasoline in the No. 1 oil storage tank is injected into the top of the engine cylinder through the oil filling pipe to test the air tightness of the engine cylinder. Once the air tightness is poor, the oil will enter the cylinder body along the valve and seep out from the valve hole, so that the staff can accurately identify the leaking cylinder.

[0010] Preferably, the recovery component includes a recovery pipe, a No. 2 oil storage tank and a connecting pipe; a recovery pipe is arranged on the rear side of the oil filling pipe, the recovery pipe is connected to the bottom end of the No. 2 oil storage tank of the built-in pump, and a connecting pipe is connected between the No. 2 oil storage tank and the No. 1 oil storage tank. After the built-in pump is started, the gasoline remaining on the engine cylinder block is sucked into the No. 2 oil storage tank through the recovery pipe, and the gasoline in the No. 2 oil storage tank can be injected into the No. 1 oil storage tank through the connecting pipe for repeated use, thereby avoiding waste of gasoline.

[0011] Preferably, the lifting assembly includes a lifting platform, a positioning column and a cylinder; the lifting platform is arranged on the supporting base, the positioning column is fixedly connected to the supporting base, the lifting platform is sleeved on the outside of the positioning column, the detection assembly and the recovery assembly are installed on the lifting platform, and a piston rod is installed on the supporting base and connected to the cylinder at the top of the lifting platform. After the cylinder is started, the piston rod pushes the lifting platform to move up and down, and the positioning column can prevent the lifting platform from offset when moving up and down.

[0012] Preferably, the moving assembly includes a moving platform, a threaded rod and a limit column; two moving platforms are arranged on the lifting platform, and the No. 1 oil storage tank and the No. 2 oil storage tank are respectively installed on the moving platforms, a threaded rod is inserted in the lifting platform, and the limit column is fixedly connected in the lifting platform, screw holes matching the threaded rod are opened on the moving platform, and the lifting platform is sleeved on the outside of the limit column. After the threaded rod rotates, under the restriction of the limit column, the moving platform moves forward and backward with the detection assembly and the recovery assembly above the supporting platform.

[0013] Preferably, the moving component also includes a motor; the motor is installed on the lifting platform, the transmission element of the motor is connected to the threaded rod, and the motor can provide power for the rotation of the threaded rod, so as to achieve the effect of changing the component located above the supporting platform.

[0014] Beneficial effects of the utility model:

[0015] 1. By designing an airtightness detection device for engine cylinder production, the original integrated detection device is improved into a type that can perform airtightness detection on the cylinders of the engine cylinder block separately. By testing the airtightness of four cylinders at the same time, if the test results show leakage, it is possible to accurately observe which cylinder is leaking and perform subsequent processing on it;

[0016] 2. After starting the motor, the motor drives the threaded rod to rotate to realize the movement of the mobile platform, thereby changing the position of the detection component and the recovery component. After the detection is completed, the gasoline above the cylinder can be recovered through the recovery component to avoid waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The first three-dimensional structure diagram of the airtightness detection equipment for engine cylinder production of the utility model is shown;

[0018] Figure 2 The second three-dimensional structure schematic diagram of the airtightness detection equipment for engine cylinder production of the utility model is shown;

[0019] Figure 3 The three-dimensional structure schematic diagram of the support base of the airtightness detection equipment for engine cylinder production of the utility model is shown;

[0020] Figure 4 The three-dimensional structure diagram of the detection component of the airtightness detection equipment for engine cylinder production of the utility model is shown;

[0021] Figure 5 What is shown is a three-dimensional structural schematic diagram of the recovery assembly of the airtightness detection equipment for engine cylinder production of the utility model;

[0022] Figure 6 What is shown is a three-dimensional structural schematic diagram of the mobile components of the airtightness detection equipment for engine cylinder block production of the utility model.

[0023] Explanation of the reference numerals in the accompanying drawings: 1. Support base; 2. Support leg; 3. Support platform; 401. Sealing cylinder; 402. Sealing gasket; 403. Oil storage tank No. 1; 404. Oil filling pipe; 501. Recovery pipe; 502. Oil storage tank No. 2; 503. Connecting pipe; 601. Lifting platform; 602. Positioning column; 603. Oil cylinder; 701. Moving platform; 702. Threaded rod; 703. Limiting column; 704. Motor. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] See also Figure 1-Figure 3The utility model provides an embodiment: an airtight detection device for engine cylinder production includes a support base 1, a support leg 2, a support platform 3, a detection component, a recovery component, a lifting component, and a moving component; the support base 1 is fixedly connected to the support leg 2 at the bottom end, the support base 1 is installed with a support platform 3, the support platform 3 is provided with a monitoring component, the support platform 3 is provided with a recovery component, the support base 1 is installed with a lifting component for adjusting the height of the detection component and the recovery component, the lifting component is installed with a moving component for adjusting the detection component and the recovery component and is located above the support base 1. By designing an airtight detection device for engine cylinder production, the lifting component drives the detection component to move downward to above the engine cylinder body, and performs airtight detection on the four cylinders of the engine. After the detection is completed, the detection component is removed from the support platform 3 by the lifting component in cooperation with the moving component, and the recovery component is moved to above the support platform 3, and the gasoline used for airtight detection is recovered by the recovery component.

[0026] See also Figure 4-Figure 6 In this embodiment, the detection component includes a sealing cylinder 401 and a sealing gasket 402; an engine cylinder body with valves and spark plugs installed is placed on the supporting platform 3, a sealing cylinder 401 is provided on the engine cylinder body, and a rubber sealing gasket 402 is fixedly bonded to the bottom end of the sealing cylinder 401, and the detection component also includes a No. 1 oil storage tank 403 and an oil filling pipe 404; a No. 1 oil storage tank 403 filled with gasoline is provided above the sealing cylinder 401, and the bottom end of the No. 1 oil storage tank 403 is plugged with an oil filling pipe 404 located in the sealing cylinder 401, and the recovery component includes a recovery pipe 501, a No. 2 oil storage tank 502 and a connecting pipe 503; a recovery pipe 501 is provided on the rear side of the oil filling pipe 404, and the recovery pipe 501 is connected to the bottom end of the No. 2 oil storage tank 502 with a built-in pump, and the No. 2 oil storage tank 502 is connected to the No. 1 oil storage tank 403. There is a connecting pipe 503, and the airtight cylinder can protect the internal oil filling pipe 404. The sealing gasket 402 is used for airtightness detection in conjunction with the generator 704 cylinder body. The sealing gasket 402 is made of rubber and is soft in texture. It will not leave marks on the engine cylinder body. The gasoline in the No. 1 oil tank 403 is injected into the top of the engine cylinder body through the oil filling pipe 404 to test the airtightness of the engine cylinder body. Once the airtightness is poor, the oil will enter the cylinder body through the valve and seep out from the valve hole, so that the staff can accurately see the leaking cylinder. After the built-in pump is started, the gasoline remaining on the engine cylinder body is sucked into the No. 2 oil tank 502 through the recovery pipe 501. The gasoline in the No. 2 oil tank 502 can be injected into the No. 1 oil tank 403 through the connecting pipe 503 for repeated use to avoid waste of gasoline.

[0027] See also Figure 2 , Figure 3 , Figure 6In this embodiment, the lifting component includes a lifting platform 601, a positioning column 602 and a cylinder 603; a lifting platform 601 is provided on the support base 1, and a positioning column 602 is fixedly connected to the support base 1, and the lifting platform 601 is sleeved on the outside of the positioning column 602, and the detection component and the recovery component are installed on the lifting platform 601, and a piston rod is installed on the support base 1. The cylinder 603 connected to the top of the lifting platform 601, the moving component includes a moving platform 701, a threaded rod 702 and a limiting column 703; two moving platforms 701 are provided on the lifting platform 601, and the No. 1 oil storage tank 403 and the No. 2 oil storage tank 502 are respectively installed on the moving platform 701, a threaded rod 702 is inserted in the lifting platform 601, and the limiting column is fixedly connected in the lifting platform 601 703, a screw hole matching the threaded rod 702 is provided on the moving platform 701, the lifting platform 601 is sleeved on the outside of the limiting column 703, and the moving component also includes a motor 704; the motor 704 is installed on the lifting platform 601, and the transmission element of the motor 704 is connected to the threaded rod 702. After the oil cylinder 603 is started, the piston rod pushes the lifting platform 601 to move up and down, and the positioning column 602 can prevent the lifting platform 601 from offset when moving up and down. After the threaded rod 702 rotates, under the restriction of the limiting column 703, the moving platform 701 moves back and forth above the supporting platform 3 with the detection component and the recovery component, and the motor 704 can provide power for the rotation of the threaded rod 702, so as to achieve the effect of changing the components located above the supporting platform 3.

[0028] When working, the staff first places the engine cylinder body with valves and spark plugs installed on the support platform 3, starts the oil cylinder 603, and the oil cylinder 603 pushes the lifting platform 601 to move downward along the direction of the positioning column 602, so that the airtight electrode is close to the top of the engine cylinder, and then starts the oil filling pipe 404, which injects the gasoline in the No. 1 oil tank 403 into the top of the cylinder, and the gasoline will remain on the cylinder with the valves and spark plugs installed;

[0029] After standing for a period of time, if the cylinder leaks, gasoline will drip from the valve hole of the cylinder. The staff can accurately observe the leaking cylinder and perform subsequent grinding on the valve. The oil cylinder 603 retracts the piston rod, the detection assembly moves upward, and the motor 704 is started. The motor 704 drives the threaded rod 702 to rotate. Under the restriction of the limit column 703, the moving platform 701 will not rotate with the threaded rod 702 but move along the direction of the limit column 703, so that the recovery assembly moves to the top of the support platform 3;

[0030] The oil cylinder 603 is started, and the oil cylinder 603 pushes the recovery assembly downward, so that the recovery pipe 501 moves into the gasoline, and the pump in the second oil storage tank 502 is started. The pump sucks the gasoline remaining above the engine cylinder into the second oil storage tank 502 through the recovery pipe 501, and the motor 704 and the oil cylinder 603 are started again to reset, and then the next engine cylinder is tested;

[0031] After repeated inspections, when the gasoline in the No. 1 oil storage tank 403 is insufficient, the recovery pipe 501 is started to inject the gasoline recovered in the No. 2 oil storage tank 502 back into the No. 1 oil storage tank 403 to achieve recycling and avoid waste.

[0032] Through the above steps, an airtightness detection device for engine cylinder block production is designed, and the original integrated detection device is improved into a type that can perform airtightness detection on the cylinders of the engine block separately. By simultaneously performing airtightness detection on four cylinders, when a leakage is found in the detection result, it is possible to accurately observe which cylinder has a leak and perform subsequent processing on it, so as to solve the problem that the existing airtightness detection equipment for engine cylinder block production can only perform overall airtightness detection and cannot inspect a single cylinder, resulting in the inability to accurately find the leaking cylinder.

[0033] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. An airtightness detection device for engine cylinder production, comprising a support base (1), a support foot (2), and a support platform (3); characterized in that: The invention also comprises a detection component, a recovery component, a lifting component and a moving component; a support foot (2) is fixedly connected to the bottom end of the support base (1); a support platform (3) is installed on the support base (1); a monitoring component is arranged on the support platform (3); a recovery component is arranged on the support platform (3); a lifting component for adjusting the height of the detection component and the recovery component is installed on the support base (1); and a moving component for adjusting the detection component and the recovery component and located above the support base (1) is installed on the lifting component.

2. The airtightness detection equipment for engine cylinder production according to claim 1, characterized in that: The detection component comprises a sealing cylinder (401) and a sealing pad (402); an engine cylinder body with valves and spark plugs installed is placed on the support platform (3), the engine cylinder body is provided with a sealing cylinder (401), and a rubber sealing pad (402) is fixedly bonded to the bottom end of the sealing cylinder (401).

3. The airtightness detection equipment for engine cylinder production according to claim 2, characterized in that: The detection assembly further comprises a No. 1 oil storage tank (403) and an oil filling pipe (404); the No. 1 oil storage tank (403) filled with gasoline is arranged above the sealing cylinder (401), and the bottom end of the No. 1 oil storage tank (403) is plugged with the oil filling pipe (404) located in the sealing cylinder (401).

4. The airtightness detection equipment for engine cylinder production according to claim 3, characterized in that: The recovery component comprises a recovery pipe (501), a second oil storage tank (502) and a connecting pipe (503); the recovery pipe (501) is arranged at the rear side of the oil filling pipe (404); the recovery pipe (501) is connected to the bottom end of the second oil storage tank (502) with a built-in pump; and the connecting pipe (503) is connected between the second oil storage tank (502) and the first oil storage tank (403).

5. The airtightness detection equipment for engine cylinder production according to claim 4, characterized in that: The lifting assembly comprises a lifting platform (601), a positioning column (602) and an oil cylinder (603); the lifting platform (601) is arranged on a support base (1), the positioning column (602) is fixedly connected to the support base (1), the lifting platform (601) is sleeved on the outside of the positioning column (602), the detection assembly and the recovery assembly are installed on the lifting platform (601), and the oil cylinder (603) whose piston rod is connected to the top of the lifting platform (601) is installed on the support base (1).

6. The airtightness detection equipment for engine cylinder production according to claim 5, characterized in that: The moving assembly comprises a moving platform (701), a threaded rod (702) and a limiting column (703); two moving platforms (701) are arranged on the lifting platform (601), a No. 1 oil storage tank (403) and a No. 2 oil storage tank (502) are respectively installed on the moving platforms (701), a threaded rod (702) is inserted into the lifting platform (601), the limiting column (703) is fixedly connected inside the lifting platform (601), a screw hole matching the threaded rod (702) is opened on the moving platform (701), and the lifting platform (601) is sleeved on the outside of the limiting column (703).

7. The airtightness detection equipment for engine cylinder production according to claim 6, characterized in that: The moving assembly also includes a motor (704); the motor (704) is installed on the lifting platform (601), and the transmission element of the motor (704) is connected to the threaded rod (702).

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