Mobile mechanical seal test platform car

Abstract

The utility model provides a mobile mechanical seal test platform car, which comprises a mobile car, a hydraulic system, a cylinder body, a connecting assembly, a piston, a detection chamber, a liquid outlet pipe and a pressure gauge, the detection chamber is arranged, after the mechanical sealing assembly is installed on the top of the cylinder body, the hydraulic system is started to enable the pressure of the detection chamber to rise, after the pressure rises to a certain value, the hydraulic system is stopped, the detection chamber is in a pressure maintaining state, after a period of time, the pressure gauge does not change, and it shows that the mechanical sealing assembly is good in sealing performance and capable of being installed. Otherwise, returning to a factory for maintenance; therefore, the mechanical sealing assembly is overhauled before being installed, and the problems that repair is caused by quality problems in the using process of the mechanical sealing assembly, the overhaul work amount is increased, and finally brand benefit losses and production losses of owners are caused are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing equipment, in particular to a mobile mechanical seal test platform vehicle. Background Art

[0002] Mechanical seal components are consumable parts of pump equipment, with high maintenance frequency and large replacement workload, requiring dismantling of most of the key parts of the equipment. Therefore, the reliability of mechanical seals must be ensured while ensuring the quality of maintenance. Now, we basically use containerized mechanical seals assembled by manufacturers, which are assembled, tested, inspected, packaged and then transported to warehouses for storage. However, there are many processes between the mechanical seals sent by the manufacturer and our maintenance, and the improper storage of internal consumable parts, which leads to the mechanical seals themselves and internal consumable parts. During the installation process, since they are bought directly from the manufacturer, they are generally not inspected after being transported to the installation location. Therefore, it is easy to cause damaged parts or products with substandard sealing to be installed on site. This type of containerized mechanical seal will have quality problems during installation and use, resulting in repairs, thereby increasing the amount of our maintenance work, and ultimately leading to brand benefit losses and production losses of the owner. Utility Model Content

[0003] The purpose of the utility model is to design a mobile mechanical seal test platform vehicle to solve the problems raised by the background technology. To achieve the above purpose, the utility model provides the following technical solutions: including a hydraulic system fixed to the top of the mobile vehicle and a cylinder body connected to the hydraulic system and installed on the top of the mobile vehicle, a mechanical seal assembly is detachably connected to the top of the cylinder body through a connecting assembly, a sealing detection point of the mechanical seal assembly is located inside the cylinder body, a piston is provided inside the cylinder body, the top of the piston is in close contact with the mechanical seal assembly, a detection chamber connected to the hydraulic system is provided inside the cylinder body, and a pressure gauge is provided on the liquid outlet pipe of the detection chamber.

[0004] Furthermore, the hydraulic system includes an oil tank fixedly connected to the top of the mobile vehicle, the oil tank is connected to a hand pump, a liquid outlet pipe of the hand pump is connected to the detection chamber through a first pipeline, and the liquid outlet pipe is connected to the oil tank.

[0005] Furthermore, a liquid level gauge is provided on the side wall of the oil tank.

[0006] Furthermore, a one-way valve is provided on the liquid outlet pipe.

[0007] Furthermore, a filter is connected to the pipeline between the oil tank and the hand pump.

[0008] Furthermore, a support chamber is provided inside the cylinder body, the bottom of the piston is connected to a spring seat via a spring, the spring seat is fixed to the inner bottom of the cylinder body, and the hydraulic system is connected to the support chamber.

[0009] Furthermore, the liquid outlet pipe of the hand pump is connected to the support chamber through a second pipeline, and the support chamber is connected to the oil tank through an oil return pipe.

[0010] Furthermore, pressure gauges are provided on the oil return pipe and the liquid outlet pipe.

[0011] Furthermore, the cylinder body is connected to the top of the moving vehicle through a cylinder seat.

[0012] Furthermore, a fixing plate is provided on the top of the cylinder body, the connecting assembly comprises a replaceable flange detachably connected to the fixing plate, and the mechanical sealing assembly is detachably connected to the replaceable flange.

[0013] Furthermore, the detachable connection is in the form of connection between bolts and threaded holes.

[0014] Furthermore, a gasket is fixedly connected to the bottom of the mechanical seal assembly, and the gasket is tightly attached to the top of the piston.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model is provided with a detection chamber. When the mechanical seal assembly is installed on the top of the cylinder body, the hydraulic system is started to increase the pressure in the detection chamber. When it increases to a certain value, the hydraulic system stops and the detection chamber is in a pressure-maintaining state. After a period of time, there is no change in the pressure gauge, indicating that the sealing performance of the mechanical seal assembly is good and can be installed. Otherwise, it needs to be returned to the factory for repair. Therefore, the utility model performs a test on the mechanical seal assembly before installation, thereby preventing the mechanical seal assembly from being returned for repair due to quality problems during use, increasing the amount of repair work, and ultimately leading to brand benefit loss and production loss of the owner. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Among them: 1. Liquid level gauge; 2. Filter; 3. Check valve; 4. Hand pump; 5. Gasket; 6. O-ring; 7. Oil tank; 8. Mobile car; 9. Cylinder seat; 10. Support chamber; 11. Spring; 12. Cylinder body; 13. Spring seat; 14. Piston; 15. Piston ring; 16. Detection chamber; 17. Mechanical seal assembly; 18. Bolts; 19. Replaceable flange. DETAILED DESCRIPTION

[0020] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0021] Example: Please refer to Figure 1 A mobile mechanical seal test platform vehicle comprises a hydraulic system fixedly connected to the top of a mobile vehicle 8 and a cylinder body 12 connected to the hydraulic system and installed on the top of the mobile vehicle 8. A mechanical seal assembly 17 is detachably connected to the top of the cylinder body 12 through a connecting assembly. The sealing detection point of the mechanical seal assembly 17 is located inside the cylinder body 12. A piston 14 is arranged inside the cylinder body 12. The top of the piston 14 is in close contact with the mechanical seal assembly 17. A detection chamber 16 connected to the hydraulic system is arranged inside the cylinder body 12. A pressure gauge is arranged on the liquid outlet pipe of the detection chamber 16. The device is moved to the position where the mechanical seal assembly 17 needs to be installed by the mobile vehicle 8, and then the mechanical seal assembly 17 is tested to see whether the mechanical seal assembly 17 meets the sealing requirements. If the sealing requirements are met, it is installed, otherwise it is returned to the factory for inspection. Among them, the detachable method adopts the bolt locking method; and the test process is: the mechanical seal assembly 17 is moved to the position where the mechanical seal assembly 17 needs to be installed. The mechanical seal assembly 17 is installed on the top of the cylinder body 12, and the sealing detection point in the mechanical seal assembly 17 is installed inside the cylinder body 12, and then the hydraulic system is started. When the pressure in the detection chamber 16 reaches a certain level, the valve in the relevant hydraulic system is closed to maintain the pressure in the detection chamber 16, and the pressure gauge is observed for a certain period of time. If the pressure gauge changes very little or does not change, it means that the sealing performance of the mechanical seal assembly 17 is good and it can be aligned for installation. Otherwise, the mechanical seal assembly 17 is returned to the factory for inspection and repair. Therefore, the utility model inspects and repairs the mechanical seal assembly 17 before installation, thereby preventing the mechanical seal assembly 17 from being returned for repair due to quality problems during use, increasing the amount of inspection and repair work, and ultimately leading to brand benefit loss and production loss of the owner. In addition, the mobile vehicle 8 can quickly move the device to the assembly position of the mechanical seal assembly 17, thereby improving the mobility of the device.

[0022] In this embodiment, the hydraulic system includes an oil tank 7 fixedly connected to the top of the mobile vehicle 8, the oil tank 7 is connected to the hand pump 4, the liquid outlet pipe of the hand pump 4 is connected to the detection chamber 16 through the first pipeline, the liquid outlet pipe is connected to the oil tank 7, a one-way valve 3 is also provided on the liquid outlet pipe, a liquid level gauge 1 is also provided on the side wall of the oil tank 7, and a filter screen 2 is connected on the pipeline between the oil tank 7 and the hand pump 4; wherein, the use of the hand pump 4 makes the pressure inside the cylinder 12 more controllable and does not require the use of other energy sources, such as power supply; when it is necessary to increase the pressure of the detection chamber 16, it is only necessary to shake the hand pump 4 to pump the hydraulic oil in the oil tank 7 into the detection chamber Because different types of mechanical seal assemblies 17 are installed on the cylinder body 12, the depth of the mechanical seal assemblies 17 extending into the cylinder body 12 is inconsistent, so the cylinder body 12 is also provided with a support chamber 10, the bottom of the piston 14 is connected to the spring seat 13 through the spring 11, and the spring seat 13 is fixed to the inner bottom of the cylinder body 12. The outlet pipe of the hand pump 4 is connected to the support chamber 10 through the second pipeline, and the support chamber 10 is connected to the oil tank 7 through the oil return pipe. The hydraulic oil is pumped into the support chamber 10 through the hand pump 4, thereby pushing the piston 14 to rise, and then close to the bottom of the mechanical seal assemblies 17 of different types, and then A detection chamber 16 is formed; wherein the pressure of the detection chamber 16 is less than the pressure inside the support chamber 10; in addition, an O-ring 6 and a piston 14 ring are provided on the piston 14, thereby separating the detection chamber 16 from the support chamber 10; and a gasket 5 is fixedly connected to the bottom of the mechanical seal assembly 17, and the gasket 5 is close to the top of the piston 14, which is convenient for forming the detection chamber 16; and pressure gauges are provided on the return pipe and the liquid outlet pipe, which is convenient for observing the pressure in the hydraulic system; the cylinder body 12 is connected to the top of the mobile vehicle 8 through the cylinder seat 9, and a fixing plate is provided on the top of the cylinder body 12, and the connecting assembly includes a detachable connection to the fixing plate The replaceable flange 19, the mechanical seal assembly 17 is detachably connected to the replaceable flange 19, and the detachable connection method adopts the form of connecting bolts 18 with threaded holes. By replacing the replaceable flange 19, different types of mechanical seal assemblies 17 can be installed, so that one type of cylinder body 12 can detect different types of mechanical seal assemblies 17, reducing the production cost of the device; in addition, relevant valves are provided in the hydraulic system to realize the replacement of the hydraulic oil pumped out by the hand pump 4 into the detection chamber 16 or the support chamber 10. Since the arrangement of the valves is relatively conventional, no further elaboration will be made here.

[0023] How it works

[0024] The device is moved to the position where the mechanical seal assembly 17 needs to be installed by the mobile vehicle 8, and then the mechanical seal assembly 17 is tested to see whether the mechanical seal assembly 17 meets the sealing requirements. If it meets the sealing requirements, it is installed, otherwise it is returned to the factory for inspection. The test process is: the mechanical seal assembly 17 is installed on the top of the cylinder body 12 through the replaceable flange 19, and the sealing detection point in the mechanical seal assembly 17 is installed inside the cylinder body 12, and then the hand crank pump 4 is shaken to pump hydraulic oil into the support chamber 10, so that the piston 14 rises. When the top of the piston 14 is tightly attached to the bottom of the mechanical seal assembly 17, the support chamber 10 is kept pressurized by closing the relevant valves in the hydraulic system; then Open the relevant valves connected to the detection chamber 16, and the hand pump 4 pumps the hydraulic oil into the detection chamber 16. When the pressure in the detection chamber 16 reaches a certain level, close the relevant valves in the hydraulic system to maintain the pressure in the detection chamber 16, and observe the pressure gauge for a certain period of time. If the pressure gauge changes very little or does not change, it means that the sealing performance of the mechanical seal assembly 17 is good and it can be aligned for installation. Otherwise, the mechanical seal assembly 17 is returned to the factory for inspection and repair. Therefore, the utility model inspects the mechanical seal assembly 17 before installation, thereby preventing the mechanical seal assembly 17 from being repaired due to quality problems during use, increasing the amount of repair work, and ultimately leading to brand benefit loss and production loss of the owner.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are for illustrative purposes only.

[0026] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A mobile mechanical seal test platform vehicle, characterized in that: The invention comprises a hydraulic system fixedly connected to the top of a mobile vehicle (8) and a cylinder body (12) connected to the hydraulic system and installed on the top of the mobile vehicle (8); a mechanical seal component (17) is detachably connected to the top of the cylinder body (12) via a connecting component; a sealing detection point of the mechanical seal component (17) is located inside the cylinder body (12); a piston (14) is provided inside the cylinder body (12); the top of the piston (14) is in close contact with the mechanical seal component (17); a detection chamber (16) connected to the hydraulic system is provided inside the cylinder body (12); a pressure gauge is provided on the liquid outlet pipe of the detection chamber (16).

2. The mobile mechanical seal test platform vehicle according to claim 1, characterized in that: The hydraulic system comprises an oil tank (7) fixedly connected to the top of the mobile vehicle (8), the oil tank (7) being connected to a hand pump (4), the liquid outlet pipe of the hand pump (4) being connected to the detection chamber (16) via a first pipeline, and the liquid outlet pipe being connected to the oil tank (7).

3. The mobile mechanical seal test platform vehicle according to claim 2 is characterized in that: A liquid level meter (1) is also provided on the side wall of the oil tank (7).

4. The mobile mechanical seal test platform vehicle according to claim 2 is characterized in that: The liquid outlet pipe is also provided with a one-way valve (3).

5. The mobile mechanical seal test platform vehicle according to claim 2, characterized in that: The filter screen (2) is connected to the pipeline between the oil tank (7) and the hand pump (4).

6. The mobile mechanical seal test platform vehicle according to claim 2, characterized in that: A support chamber (10) is also provided inside the cylinder body (12); the bottom of the piston (14) is connected to a spring seat (13) via a spring (11); the spring seat (13) is fixed to the inner bottom of the cylinder body (12); and the hydraulic system is connected to the support chamber (10).

7. The mobile mechanical seal test platform vehicle according to claim 6, characterized in that: The liquid outlet pipe of the hand pump (4) is connected to the support chamber (10) through a second pipeline, and the support chamber (10) is connected to the oil tank (7) through an oil return pipe.

8. The mobile mechanical seal test platform vehicle according to claim 1, characterized in that: The cylinder body (12) is connected to the top of the moving vehicle (8) via a cylinder seat (9).

9. The mobile mechanical seal test platform vehicle according to claim 1, characterized in that: A fixing plate is provided on the top of the cylinder body (12); the connecting assembly comprises a replaceable flange (19) detachably connected to the fixing plate; and the mechanical sealing assembly (17) is detachably connected to the replaceable flange (19).

10. The mobile mechanical seal test platform vehicle according to claim 1, characterized in that: A gasket (5) is fixedly connected to the bottom of the mechanical seal assembly (17), and the gasket (5) is in close contact with the top of the piston (14).

Images