Submerged airtight detection tool for motor casing of hydrogen pump

Abstract

The utility model relates to the technical field of motor assembly detection, and especially relates to a hydrogen pump motor housing submerged airtightness detection tool. According to the technical scheme, the hydrogen pump motor shell comprises a base structure, a hydrogen pump motor shell body structure is placed at the upper end of the base structure, a base sealing piece is arranged between the upper end of the base structure and the lower end of the hydrogen pump motor shell body structure, and an upper gland is arranged at the upper end of the hydrogen pump motor shell body structure. An upper gland sealing ring is arranged between the upper end of the hydrogen pump motor shell body structure and the upper gland, a detachable body fixing supporting frame is arranged at the upper end of the base structure, and the projection of the body fixing supporting frame in the front-back direction is of a U-shaped structure with a downward opening. The motor shell air tightness detection device has the advantages that the overall structure is relatively simple, the operation is more convenient, the structural stability is better during use, the durability is stronger, the use cost is lower, the air tightness detection of motor shells of various specifications can be met, and the occupied space is smaller during use.

Description

Technical Field

[0001] The utility model relates to the technical field of motor component detection, in particular to a water-immersed airtightness detection tool for a hydrogen pump motor housing. Background Art

[0002] Air tightness is an important indicator for testing the quality of some special workpieces. When testing the air tightness of workpieces, it is often necessary to clamp the workpiece with the help of a fixture, and to use testing equipment or air source media to stably test the workpiece. At present, when the fixtures on the market clamp workpieces with various shapes, they often use air presses, hydraulic presses, servo electric steels and other accessory systems to tighten them. When using testing instruments for air tightness testing, the system is too complicated and the cost is relatively high.

[0003] In the production process of new energy hydrogen pump motors, in order to improve the qualified rate of motor sealing, the motor housing accounts for an important part of the sealing of the whole machine, so it is necessary to test the airtightness of the housing in advance and screen out unqualified products in advance, especially the parts formed after multiple processing steps, which need to be tested for airtightness. However, it is difficult to identify whether the sealing of the housing meets the standard with the naked eye. The inspection of products in the production process is relatively difficult, and the assembly and coordination efficiency during inspection is relatively low.

[0004] Especially for products with built-in cooling channels in the casing, it is difficult to quickly and tightly connect them with existing combination tools during testing. They need to be coordinated with multiple sealing components, and the coordination flexibility during use is relatively poor. Utility Model Content

[0005] The purpose of the utility model is to provide a hydrogen pump motor casing submersible airtightness detection tool, which adopts a new structural design, the overall structure is relatively simple, it is more convenient to operate, the structural stability during use is better, the durability is stronger, the use cost is lower, and it can meet the airtightness detection of motor casings of various specifications. It occupies a relatively small space when in use, and is more convenient to use, ensuring the safety of the motor casing in later use, and the overall efficiency during detection during the production process is higher, ensuring that the quality of the product after detection is more reliable.

[0006] The technical solution of the utility model is as follows:

[0007] A hydrogen pump motor housing submerged airtightness detection tool, characterized in that: it comprises a base structure, a hydrogen pump motor housing main structure is placed on the upper end of the base structure, a base seal is arranged between the upper end of the base structure and the lower end of the hydrogen pump motor housing main structure, an upper pressure cover is arranged on the upper end of the hydrogen pump motor housing main structure, an upper pressure cover sealing ring is arranged between the upper end of the hydrogen pump motor housing main structure and the upper pressure cover, a detachable main body fixed support frame is arranged on the upper end of the base structure, the projection of the main body fixed support frame in the front and rear directions is a U-shaped structure with an opening downward, and the upper end of the main body fixed support frame is provided with a detachable main body fixed support frame. A threaded locking connecting rod capable of moving up and down is provided at the center position of the end, and a rotating operating handle is provided at the upper end of the threaded locking connecting rod beyond the upper position of the main body fixed support frame. The base seal and the upper pressure cover sealing ring seal the upper and lower ends of the main structure of the hydrogen pump motor housing and form a sealed space inside the main structure of the hydrogen pump motor housing. An air inlet adapter sealing connector and an air inlet matching sealing ring are provided on the main structure of the hydrogen pump motor housing. The main structure of the hydrogen pump motor housing is matched and connected with the base structure through a housing locating pin and a fixed bolt.

[0008] Furthermore, the lower end of the main body fixing support frame is fixedly connected to the base structure through a main body fastening bolt.

[0009] Furthermore, the threaded locking connecting rod is connected to the main body fixing support frame by means of a threaded connection.

[0010] Furthermore, an integrally formed reinforcement structure is provided at the matching position between the main body fixing support frame and the threaded locking connecting rod.

[0011] Furthermore, the rotating operating handle is provided with an anti-slip groove for hand-held operation.

[0012] Furthermore, the upper end of the upper pressure cover is fixedly connected to the threaded locking connecting rod.

[0013] Beneficial effects of the utility model:

[0014] The utility model adopts a brand-new structural design. The overall structure is relatively simple, which is more convenient to operate, has better structural stability during use, is more durable, and has lower use costs. It can meet the air tightness detection of motor casings of various specifications, occupies relatively small space when in use, and is more convenient to use, thereby ensuring the safety of the motor casing in later use. The overall efficiency of detection during the production process is higher, which ensures that the quality of the product after detection is more reliable, and is more convenient and flexible for the coordinated installation during the air tightness detection of the dual-channel product casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front schematic diagram of the utility model;

[0016] Figure 2 It is a front view schematic diagram of the utility model cooperating with the housing to be tested;

[0017] Figure 3 It is a cross-sectional schematic diagram of the AA position of the utility model cooperating with the housing to be detected;

[0018] Figure 4 It is a side schematic diagram of the utility model cooperating with the housing to be detected;

[0019] Figure 5 It is a top view schematic diagram of the utility model cooperating with the housing to be tested;

[0020] Figure 6 It is a three-dimensional structural schematic diagram of the casing to be tested of the utility model;

[0021] In the figure: 001, base structure, 002, base seal, 003, upper pressure cover, 004, main body fixing support frame, 005, upper pressure cover sealing ring, 006, threaded locking connecting rod, 007, rotating operating handle, 008, air inlet adapter sealing connector, 009, air inlet matching sealing ring, 010, casing locating pin, 011, placement of fixing bolts, 012, main structure of hydrogen pump motor casing. DETAILED DESCRIPTION

[0022] like Figures 1 to 6As shown, a hydrogen pump motor housing submersible airtightness detection tool includes a base structure 001, and a hydrogen pump motor housing main structure 012 is placed on the upper end of the base structure 001, which is the main structure of the housing to be detected. A base seal 002 is provided between the upper end of the base structure 001 and the lower end of the hydrogen pump motor housing main structure 012, which can ensure the sealing of the lower end matching position. An upper pressure cover 003 is provided at the upper end of the hydrogen pump motor housing main structure 012, and an upper pressure cover sealing ring 005 is provided between the upper end of the hydrogen pump motor housing main structure 012 and the upper pressure cover 003, which can ensure the matching sealing of the upper end position. The upper end of the base structure 001 is provided with a detachable main body fixing support frame 004, and the projection of the main body fixing support frame 004 in the front-to-back direction is a U-shaped structure with an opening downward. The upper center position of the main body fixing support frame 004 is provided with a threaded locking connecting rod 006 that can move up and down. They are combined together by means of threaded matching connection, and can be used with a screw rod, and the production cost is relatively low. The upper end of the threaded locking connecting rod 006 is provided with a rotating operating handle 007 at a position above the main body fixing support frame 004. Manual operation can be performed through this position to achieve a sealing combination operation when the housing body is placed. The base seal 002 and the upper gland seal ring 005 seal the upper and lower ends of the main structure 012 of the hydrogen pump motor housing and form a sealed space inside the main structure 012 of the hydrogen pump motor housing. The main structure 012 of the hydrogen pump motor housing is provided with an air inlet transfer seal connector 008 and an air inlet matching seal ring 009. The main structure 012 of the hydrogen pump motor housing is matched and connected with the base structure 001 through the housing locating pin 010 and the placement of the fixing bolt 011, which can ensure that the channel inside the housing can be sealed during the inspection. It adopts a new structural design, the overall structure is relatively simple, it is more convenient to operate, the structural stability is better during use, the durability is stronger, the use cost is lower, it can meet the air tightness inspection of motor housings of various specifications, the space occupied during use is relatively small, the convenience during use is better, the safety of the motor housing in later use is ensured, and the overall efficiency during inspection during the production process is higher, which ensures that the quality of the product after inspection is more reliable. It can be understood that the motor housing submerged airtightness detection tool provided in this embodiment integrates two different media, namely, the motor housing cavity airtightness detection and the motor housing external water source airtightness detection, to achieve the motor housing sealing detection effect. The tool positions the motor housing as a whole and seals the cavity, and realizes the motor housing sealing detection with the two media of air source and water source. The water channel outside the motor housing is sealed by the water source medium to realize the water source airtightness detection. The air source inside the motor housing is sealed by the air source medium to realize the air source airtightness detection.During the specific test, the given water tank depth is greater than one-third of the motor housing height, and 0.5-0.7Mpa atmospheric pressure is continuously injected into the motor housing cavity. According to the physical principle of energy conservation, the air source pressure inside the motor housing cavity is greater than the pressure of the water source outside the motor housing. After the motor housing to be tested is installed in place on this tooling, there is no physical or chemical reaction between the two media, which improves the detection efficiency.

[0023] Preferably, the lower end of the main body fixing support frame 004 is fixedly connected to the base structure 001 by main body fastening bolts, so that the cost of the overall structure during production is lower.

[0024] Preferably, the threaded locking connecting rod 006 is connected to the main body fixed support frame 004 by means of a threaded connection, and an integrally formed reinforcement structure is provided at the matching position between the main body fixed support frame 004 and the threaded locking connecting rod 006, so that the connection strength at the matching position is higher, the tightness during use is more reliable, the matching stability of the main body bearing position is more reliable, and the overall durability is better.

[0025] Preferably, the rotating operating handle 007 is provided with a hand-held operation anti-slip groove, which is more stable during hand-held operation and more comfortable during manual operation.

[0026] Preferably, the upper end of the upper pressure cover 003 is fixedly connected to the threaded locking connecting rod 006 so that the structure at the upper end can be integrated, which is more convenient in use.

[0027] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements or substitutions can be made without departing from the principles of the present invention. These improvements or substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A hydrogen pump motor housing submersible airtightness detection tool, characterized by: The invention comprises a base structure (001), a main structure of a hydrogen pump motor housing (012) is placed on the upper end of the base structure (001), a base seal (002) is arranged between the upper end of the base structure (001) and the lower end of the main structure of the hydrogen pump motor housing (012), an upper gland (003) is arranged on the upper end of the main structure of the hydrogen pump motor housing (012), an upper gland seal ring (005) is arranged between the upper end of the main structure of the hydrogen pump motor housing (012) and the upper gland (003), a detachable main body fixing support frame (004) is arranged on the upper end of the base structure (001), the projection of the main body fixing support frame (004) in the front-rear direction is a U-shaped structure with an opening downward, and a removable main body fixing support frame (004) is arranged at the center of the upper end thereof. A threaded locking connecting rod (006) is movable up and down, and a rotating operating handle (007) is provided at the upper end of the threaded locking connecting rod (006) beyond the upper position of the main fixed support frame (004). The base seal (002) and the upper pressure cover seal ring (005) seal the upper and lower ends of the hydrogen pump motor housing main structure (012) and form a sealed space inside the hydrogen pump motor housing main structure (012). The hydrogen pump motor housing main structure (012) is provided with an air inlet transfer sealing connector (008) and an air inlet matching seal ring (009). The hydrogen pump motor housing main structure (012) is matched and connected with the base structure (001) through a housing locating pin (010) and a placement fixing bolt (011).

2. A hydrogen pump motor housing submersible airtightness detection tool according to claim 1, characterized in that: The lower end of the main body fixing support frame (004) is fixedly connected to the base structure (001) via main body fastening bolts.

3. A hydrogen pump motor housing submersible airtightness detection tool according to claim 1, characterized in that: The threaded locking connecting rod (006) is connected to the main body fixing support frame (004) by means of a threaded connection.

4. A hydrogen pump motor housing submersible airtightness detection tool according to claim 1, characterized in that: An integrally formed reinforcement structure is provided at the matching position between the main body fixing support frame (004) and the threaded locking connecting rod (006).

5. A hydrogen pump motor housing submersible airtightness detection tool according to claim 1, characterized in that: The rotating operating handle (007) is provided with a hand-held operation anti-slip groove.

6. A hydrogen pump motor housing submersible airtightness detection tool according to claim 1, characterized in that: The upper end of the upper pressure cover (003) is fixedly connected to the threaded locking connecting rod (006).

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