Hydraulic test device for shell of explosion-proof motor

Abstract

The utility model relates to an explosion-proof motor shell hydraulic pressure test device, and belongs to the technical field of explosion-proof motor production, the explosion-proof motor shell hydraulic pressure test device comprises a base, an upper sealing gasket, a lower sealing gasket and a hydraulic mechanism arranged on the base, the surface of the upper sealing gasket is provided with a water inlet hole, the output end of the hydraulic mechanism is fixedly provided with a pressing block, and the pressing block is provided with a water inlet pipe; the water inlet pipe is communicated with the water inlet hole and externally connected with a pressure system, the surface of the base is concavely provided with a water storage tank, the water storage tank is externally connected with a drainage pipe, sliding rails are symmetrically fixed to the base, supporting tables are symmetrically and slidably connected to the sliding rails, and lower sealing gaskets are arranged on the surfaces of the supporting tables. According to the device, two supporting tables are arranged, when one supporting table moves to the bottom of the hydraulic mechanism for testing, the other supporting table can conduct feeding and discharging actions of a motor shell, the two supporting tables conduct testing alternately, feeding and discharging can be conducted on the other supporting table in the testing process of one motor shell, and therefore uninterrupted testing is achieved; and the test efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of explosion-proof motor manufacturing, and in particular to a hydrostatic testing device for the casing of an explosion-proof motor. Background Technology

[0002] Explosion-proof motors are a type of motor that can be used in flammable and explosive environments without producing electrical sparks during operation. They are primarily used in coal mines, oil and gas, petrochemical, and chemical industries. Additionally, they are widely used in textiles, metallurgy, urban gas, transportation, grain and oil processing, papermaking, and pharmaceuticals. As a primary power source, explosion-proof motors are typically used to drive pumps, fans, compressors, and other transmission machinery.

[0003] The explosion-proof motor housing is a casting. Due to the numerous casting processes and complex influencing factors, the casting housing is prone to casting defects such as porosity, shrinkage cavities, sand holes, and slag porosity. In order to improve the explosion-proof performance, the explosion-proof motor housing must have good anti-penetration performance.

[0004] Therefore, the casing of each explosion-proof motor needs to undergo a hydrostatic test. The hydrostatic testing equipment currently in use has a relatively simple structure. For some motors with a slightly larger volume, the loading and unloading of the casing requires the use of a crane, resulting in low testing efficiency. Utility Model Content

[0005] The purpose of this application is to provide a hydrostatic testing device for explosion-proof motor housings to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides a hydrostatic testing device for explosion-proof motor housings, employing the following technical solution:

[0007] A hydrostatic testing device for an explosion-proof motor housing includes a base, an upper sealing gasket, a lower sealing gasket, and a hydraulic mechanism mounted on the base. The upper sealing gasket has a water inlet hole on its surface. A pressure block is fixed to the output end of the hydraulic mechanism. A water inlet pipe is mounted on the pressure block and connected to the water inlet hole. A pressure system is connected to the water inlet pipe. A water storage tank is recessed on the surface of the base and connected to a drain pipe. Slide rails are symmetrically fixed on the base, and support platforms are symmetrically slidably connected to the slide rails. A lower sealing gasket is provided on the surface of the support platform.

[0008] Protective walls are symmetrically fixed on both sides of the base along the length of the slide rail, and liftable retaining walls are also symmetrically arranged on the base perpendicular to the slide rail.

[0009] Preferably, the support platform includes a base frame, a lifting platform, springs, rollers, and support blocks. Multiple rollers are symmetrically arranged on both sides of the bottom end of the base frame, and the rollers are matched and connected to the slide rail. Springs are fixed at the four corners of the top end of the base frame, and the lifting platform is fixed on the springs. The projected area of ​​the lifting platform is larger than the projected area of ​​the base frame. Multiple support blocks are symmetrically fixed on both sides of the bottom end of the lifting platform, and the bottom ends of the support blocks can abut against the base.

[0010] By adopting the above technical solution, when the support platform is in use, the spring is set to keep the lifting platform in a suspended state, which makes it easy to move the support platform. During the test, the hydraulic mechanism pushes the motor housing and the lifting platform to move downward together. After the support blocks on both sides of the bottom of the lifting platform come into contact with the base, the lifting platform can provide a stable reaction force, so that the motor housing is firmly pressed onto the lifting platform.

[0011] The spring is equipped with a telescopic sleeve, the top end of which is fixed to the lifting platform, and the bottom end of which is fixed to the base frame.

[0012] Preferably, both the protective wall and the retaining wall are made of transparent material, and a cylinder is vertically fixed on the frame of the hydraulic mechanism. The retaining wall is slidably connected between the two protective walls, and the cylinder is used to drive the retaining wall to rise and fall.

[0013] By adopting the above technical solutions and setting up protective walls and barriers, the safety of workers can be ensured, and the defective product casing can be prevented from bursting and fragments from injuring workers.

[0014] The water inlet pipe is integrated inside the pressure block, and the water outlet end of the water inlet pipe is located at the middle of the bottom end of the pressure block.

[0015] In summary, this application includes at least one of the following beneficial technical effects: the explosion-proof motor housing hydrostatic testing device is equipped with two support platforms. When one support platform moves to the bottom of the hydraulic mechanism for testing, the other support platform can perform loading and unloading of the motor housing. The two platforms are tested alternately, and the loading and unloading of the other support platform can be performed during the testing of one motor housing, thereby achieving uninterrupted testing and improving testing efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0017] Figure 2 This is a structural schematic diagram of the hidden retaining wall state in the embodiments of this application.

[0018] Figure 3 This is an exploded schematic diagram illustrating the motor housing compression process in an embodiment of this application.

[0019] Explanation of reference numerals in the attached drawings: 1. Base; 11. Water tank; 12. Drain pipe; 2. Upper sealing gasket; 21. Water inlet hole; 3. Lower sealing gasket; 4. Hydraulic mechanism; 41. Pressure block; 411. Water inlet pipe; 5. Support platform; 51. Base frame; 52. Lifting platform; 53. Spring; 54. Roller; 55. Support block; 6. Protective wall; 7. Retaining wall; 8. Cylinder. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0021] This application discloses a hydrostatic testing device for an explosion-proof motor housing, referring to... Figure 1-3 The system includes a base 1, an upper sealing gasket 2, a lower sealing gasket 3, and a hydraulic mechanism 4 mounted on the base 1. The upper sealing gasket 2 has a water inlet hole 21 on its surface. The output end of the hydraulic mechanism 4 is fixed with a pressure block 41. A water inlet pipe 411 is installed on the pressure block 41. The water inlet pipe 411 is integrated into the pressure block 41, and the water outlet end of the water inlet pipe 411 is located in the middle of the bottom end of the pressure block 41. The water inlet pipe 411 is connected to the water inlet hole 21. A pressure system is connected to the outside of the water inlet pipe 411. A water storage tank 11 is recessed on the surface of the base 1. A drain pipe 12 is connected to the outside of the water storage tank 11. A slide rail is symmetrically fixed on the base 1. A support platform 5 is symmetrically slidably connected on the slide rail. The lower sealing gasket 3 is mounted on the surface of the support platform 5.

[0022] Protective walls 6 are symmetrically fixed on both sides of the base 1 along the length of the slide rail, and liftable retaining walls 7 are also symmetrically arranged on the base 1 at a position perpendicular to the slide rail.

[0023] Reference Figure 3 The support platform 5 includes a base frame 51, a lifting platform 52, a spring 53, rollers 54, and support blocks 55. Multiple rollers 54 are symmetrically arranged on both sides of the bottom end of the base frame 51. The rollers 54 are matched and connected to the slide rail. Springs 53 are fixed at the four corners of the top of the base frame 51. The lifting platform 52 is fixed on the springs 53. The projected area of ​​the lifting platform 52 is larger than the projected area of ​​the base frame 51. Multiple support blocks 55 are symmetrically fixed on both sides of the bottom end of the lifting platform 52. The bottom end of the support block 55 can abut against the base 1. In order to ensure that the lifting platform 52 moves in the vertical direction in a horizontal state, a telescopic sleeve is provided inside the spring 53. The top end of the telescopic sleeve is fixed to the lifting platform 52, and the bottom end of the telescopic sleeve is fixed to the base frame 51.

[0024] When in use, the support platform 5 is suspended by the spring 53, which makes it easy to move the support platform 5. During the test, the hydraulic mechanism 4 pushes the motor housing and the lifting platform 52 to move downward together. After the support blocks 55 on both sides of the bottom of the lifting platform 52 come into contact with the base 1, the lifting platform 52 can provide a stable reaction force, so that the motor housing is firmly pressed on the lifting platform 52.

[0025] Reference Figure 1 Both the protective wall 6 and the retaining wall 7 are made of transparent material. A cylinder 8 is vertically fixed on the frame of the hydraulic mechanism 4. The retaining wall 7 is slidably connected between the two protective walls 6. The cylinder 8 is used to drive the retaining wall 7 to rise and fall.

[0026] By installing protective walls 6 and barrier walls 7, the safety of staff can be ensured and the defective product casing can be prevented from bursting and fragments from injuring staff.

[0027] The implementation principle of the explosion-proof motor housing hydrostatic testing device in this application is as follows:

[0028] During the test, the motor housing is placed vertically on the lower sealing gasket 3, and the upper sealing gasket 2 is placed on the top surface of the motor housing. Then, the hydraulic mechanism 4 drives the pressure block 41 to move downward and press it against the upper sealing gasket 2. The pressure system injects water into the motor housing through the water inlet pipe 411 and maintains pressure. The staff can observe whether there is any change in the pressure in the pressure system.

[0029] This application sets up two support platforms 5. When one support platform 5 moves to the bottom of the hydraulic mechanism 4 for testing, the other support platform 5 can perform loading and unloading operations on the motor housing. The two platforms are tested alternately, so that loading and unloading can be performed on the other support platform 5 while one motor housing is being tested, thereby achieving uninterrupted testing and improving testing efficiency.

[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An explosion-proof motor shell water pressure test device, comprising a base (1), an upper sealing pad (2), a lower sealing pad (3) and a hydraulic mechanism (4) arranged on the base (1), a water inlet hole (21) is arranged on the surface of the upper sealing pad (2), a pressure block (41) is fixed on the output end of the hydraulic mechanism (4), a water inlet pipe (411) is arranged on the pressure block (41), the water inlet pipe (411) is communicated with the water inlet hole (21), and a pressure system is connected with the water inlet pipe (411), characterized in that: The base (1) is concave in surface and provided with a water storage tank (11), the water storage tank (11) is circumscribed with a drain pipe (12), the base (1) is symmetrically fixed with slide rails, the slide rails are symmetrically and slidingly connected with support tables (5), and the support tables (5) are provided with lower sealing pads (3) in surface. ​ The base (1) is symmetrically fixed with protective walls (6) along the length direction of the slide rails, and the base (1) is also symmetrically provided with liftable retaining walls (7) at positions perpendicular to the slide rails.

2. The hydrostatic testing apparatus for an explosion-proof electrical machine housing according to claim 1, characterized in that: The support table (5) comprises a chassis (51), a lifting table (52), springs (53), rollers (54) and support blocks (55), the chassis (51) is symmetrically provided with a plurality of rollers (54) at both sides of the bottom end, the rollers (54) are matched and connected on the slide rails, the springs (53) are fixed at the top end of the chassis (51), the lifting table (52) is fixed on the springs (53), the orthographic projection area of the lifting table (52) is greater than that of the chassis (51), and the lifting table (52) is symmetrically fixed with a plurality of support blocks (55) at both sides of the bottom end, and the bottom end of the support blocks (55) can abut against the base (1).

3. The hydrostatic testing apparatus for an explosion-proof electrical machine housing according to claim 2, characterized in that: The spring (53) is provided with a telescopic sleeve, the top end of the telescopic sleeve is fixed with the lifting table (52), and the bottom end of the telescopic sleeve is fixed with the chassis (51).

4. The hydrostatic testing apparatus of claim 1, wherein: The protective walls (6) and the retaining walls (7) are made of transparent materials, the frame of the hydraulic mechanism (4) is vertically fixed with a cylinder (8), the retaining wall (7) is slidingly connected between the two protective walls (6), and the cylinder (8) is used for driving the retaining wall (7) to lift and lower.

5. The hydrostatic testing apparatus of claim 1, wherein: The water inlet pipe (411) is integrated in the pressing block (41), and the water outlet end of the water inlet pipe (411) is arranged in the middle of the bottom end of the pressing block (41).

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