Vacuum stator testing device

Abstract

The utility model discloses a vacuum stator testing device, and belongs to the technical field of stator testing. The device mainly comprises a test bench, the test bench is provided with a detection bench surface, and a sealing gasket is installed on the detection bench surface; the rack is mounted on the test bench; the lifting air cylinders are provided with telescopic shafts; the connecting panel is connected to the two groups of telescopic shafts, and a clamping hole is formed in the connecting panel; fixing seats are mounted on the connecting seats, and a connecting rod is connected between the two fixing seats; one end of the screw rod is in bearing connection with a sliding clamping block; and the inserting rod is inserted into the clamping hole, a vacuum cover is installed at one end of the inserting rod, and the inserting rod is sleeved with an abutting disc. According to the vacuum stator testing device, through the arrangement of the connecting panel, the clamping hole, the connecting seat, the fixing seat, the connecting rod, the screw rod, the sliding clamping block, the rotating disc, the vacuum cover and the inserting rod, the vacuum cover can be replaced so as to adapt to stators of different shapes for vacuum testing.

Description

Technical Field

[0001] This application relates to the technical field of stator testing, specifically to a vacuum stator testing device. Background Art

[0002] The fixed part in an electric machine is called the stator, on which pairs of stationary main magnetic poles with direct current excitation are installed; while the rotating part, the rotor, is called the armature core, on which the armature winding is to be installed. After being energized, it generates an induced electromotive force, acts as a rotating magnetic field, and then generates an electromagnetic torque for energy conversion.

[0003] Stator testing is mainly to ensure that the performance and quality of the stator meet the requirements. Common stator tests include: appearance inspection, insulation resistance test, and stator vacuum test, etc.

[0004] For example, the patent with the publication number CN207132858U specifically discloses a vacuum tester for an electric machine stator, including a test bench, a test rack, a control system, a display screen, operation buttons, a gasket, a vacuum pump, a simulation detection device, a vacuum solenoid valve, a lifting cylinder, a vacuum hood, and a grating inductor. Thus, the lifting cylinder drives the vacuum hood to lift and lower. With a large torque, the vacuum hood can be tightly pressed on the gasket to ensure that its interior is isolated from the outside.

[0005] When the above-mentioned patented vacuum stator testing device is in use, the lifting cylinder drives the vacuum hood to lift and lower, pressing the vacuum hood tightly on the gasket to ensure that its interior is isolated from the outside to complete the vacuum test of the stator. However, since the vacuum hood in the above patent is fixed at one end of the lifting cylinder, when vacuum testing stators of different shapes, it is difficult for the shape of the stator to match the vacuum hood, thus making it difficult to achieve sealing and affecting the test results. Therefore, it is necessary to design a vacuum stator testing device to solve the above problems.

[0006] It should be noted that the above information disclosed in this background art section is only used to understand the background art of the concept of this application, and therefore, it may include information that does not constitute prior art. Summary of the Invention

[0007] Based on the above problems existing in the prior art, the problem to be solved by this application is: to provide a vacuum stator testing device to solve the problem that when the above-mentioned patented vacuum stator testing device is in use, the lifting cylinder drives the vacuum hood to lift and lower, pressing the vacuum hood tightly on the gasket to ensure that its interior is isolated from the outside to complete the vacuum test of the stator. However, since the vacuum hood in the above patent is fixed at one end of the lifting cylinder, when vacuum testing stators of different shapes, it is difficult for the shape of the stator to match the vacuum hood, thus making it difficult to achieve sealing and affecting the test results.

[0008] The technical solution adopted by this application to solve its technical problems is: a vacuum stator testing device. It mainly includes: a test bench, which has a detection tabletop, and a gasket is installed on the detection tabletop; a frame, which is installed on the test bench; a sealing component, which is installed on the frame, and the sealing component includes: two sets of lifting cylinders, which are installed on the frame, and the lifting cylinders have telescopic shafts; a connection panel, which is connected to the two telescopic shafts, and a card hole is opened on the connection panel; a connection component, which is installed on the connection panel, and the connection component includes: two sets of connection seats, which are installed on the connection panel, a fixed seat is installed on the connection seat, a connecting rod is connected between the two fixed seats; a screw rod, which is threadedly connected to the fixed seat, and one end of the screw rod is connected to a sliding clamp block by a bearing; an insertion rod, which is inserted into the card hole, a vacuum hood is installed at one end of the insertion rod, and a holding disk is sleeved on the insertion rod.

[0009] Further, convex blocks are provided on the mutually approaching surfaces of the two connecting rods, and sliding grooves adapted to the convex blocks are provided on both sides of the sliding clamp block.

[0010] Further, the sliding clamp block has a right-angle clamping groove, and a turntable is installed at one end of the screw rod.

[0011] Further, an anti-slip pad is provided at the contact position between the sliding clamp block and the insertion rod.

[0012] Further, a grating sensor corresponding to the gasket is also provided on the detection tabletop.

[0013] The beneficial effect of this application is: for the vacuum stator testing device provided by this application, through the settings of the connection panel, card hole, connection seat, fixed seat, connecting rod, screw rod, sliding clamp block, turntable, vacuum hood and insertion rod, the vacuum hood can be replaced to adapt to vacuum testing of stators with different shapes.

[0014] In addition to the purposes, features and advantages described above, this application has other purposes, features and advantages. The following will refer to the drawings for a further detailed description of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The specification drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application.

[0016] In the drawings:

[0017] Figure 1 is the overall schematic diagram of the vacuum stator testing device in this application;

[0018] Figure 2 is Figure 1 the explosion schematic diagram of

[0019] Figure 3 is Figure 2 the partial structure schematic diagram at position A in

[0020] Among them, each reference numeral in the figure:

[0021] 1. Test bench; 101. Detection tabletop; 102. Sealing gasket; 103. Frame; 104. Display screen; 2. Sealing assembly; 201. Lifting cylinder; 202. Telescopic shaft; 203. Connection panel; 204. Card hole; 3. Connection assembly; 301. Connection seat; 302. Fixed seat; 303. Connecting rod; 304. Screw; 305. Sliding clamp block; 306. Turntable; 307. Vacuum hood; 308. Insert rod; 309. Supporting disk. Specific implementation manners

[0022] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The following will illustrate the present application in detail with reference to the drawings and in combination with the embodiments.

[0023] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0024] As Figures 1 - 3 shown, the present application provides a vacuum stator test device, including a test bench 1, the test bench 1 has a detection tabletop 101, a sealing gasket 102 is fixedly installed on the detection tabletop 101, a simulation detection device and a vacuum solenoid valve are provided on the sealing gasket 102, and a vacuum pump is provided in the test bench 1;

[0025] A frame 103 and a control system are fixedly installed on the test bench 1, a display screen 104 and operation buttons (not marked in the figure) connected to the control system are provided on the frame 103, and both the vacuum solenoid valve and the vacuum pump are electrically connected to the control system;

[0026] A sealing assembly 2 is fixedly installed on the frame 103, the sealing assembly 2 includes two groups of lifting cylinders 201 fixedly installed at the top end of the inner wall of the frame 103, the lifting cylinder 201 has a telescopic shaft 202, and a connection panel 203 is fixedly installed on the two telescopic shafts 202;

[0027] And a grating sensor corresponding to the gasket 102 is further provided on the detection table 101, and both the lifting cylinder 201 and the grating sensor are signal-connected to the control system;

[0028] A connecting component 3 is installed on the connecting panel 203. The connecting component 3 includes two groups of connecting seats 301 fixedly installed on one side of the connecting panel 203 facing the test bench 1. A fixing seat 302 is fixedly installed on the connecting seat 301, and a connecting rod 303 is connected between the two groups of fixing seats 302;

[0029] Moreover, bumps are provided on the side surfaces of the two connecting rods 303 close to each other. A screw rod 304 is threadedly connected to the two groups of fixing seats 302. One end of the screw rod 304 is connected to a sliding clamping block 305 by a bearing. Chutes (not marked in the figure) adapted to the bumps are provided on both sides of the sliding clamping block 305;

[0030] The screw rod 304 is adapted to rotate so as to push the sliding clamping block 305 to linearly move between the two connecting rods 303, so as to make the two sliding clamping blocks 305 approach each other;

[0031] The sliding clamping block 305 has a right-angle clamping groove, and a turntable 306 is fixedly installed at one end of the screw rod 304. The turntable 306 is adapted to rotate the screw rod 304;

[0032] In addition, a card hole 204 is provided on the connecting panel 203. A plug rod 308 is inserted into the card hole 204. A vacuum hood 307 is fixedly installed at one end of the plug rod 308. A resisting disc 309 is sleeved on the plug rod 308, and the resisting disc 309 contacts the surface of the connecting panel 203 close to the test bench 1;

[0033] The two sliding clamping blocks 305 are adapted to approach or move away from each other as the screw rod 304 rotates, so as to clamp the plug rod 308, and further fix the vacuum hood 307 on the connecting panel 203;

[0034] The connecting panel 203 is adapted to linearly move along with the telescopic shaft 202 of the lifting cylinder 201, so that the vacuum hood 307 approaches or moves away from the gasket 102 to seal the stator;

[0035] In this application, an anti-slip pad is provided at the contact position between the sliding clamping block 305 and the plug rod 308, so that the sliding clamping block 305 and the plug rod 308 are in close contact when clamped;

[0036] Working principle:

[0037] During use, the lifting cylinder 201 is used to drive the lifting of the vacuum hood 307. With a large torque, the vacuum hood 307 can be tightly pressed against the gasket 102 to ensure that its interior is isolated from the outside world. A vacuum test environment is generated inside the vacuum hood 307 by a vacuum pump. The stator conducts tests on the inter-turn of the test coil inside the vacuum hood 307, isolating the influence of the air environment and improving the test accuracy, perfectly meeting the test requirements. The grating sensor is used to detect whether there is a human hand or other object extending backward, and it can send a signal to the control system in time when the vacuum hood 307 descends, so that the control system can control the lifting cylinder 201 to stop driving, avoiding the vacuum hood 307 pressing on the human hand causing injury or pressing on hard objects and damaging, improving safety and preventing equipment damage;

[0038] At the same time, when conducting vacuum tests on stators of different shapes, by holding the rotating disc 306 and driving the screw 304 to rotate, the two sliding clamping blocks 305 move away from each other, that is, they no longer clamp and fix the insertion rod 308 fixed at one end of the vacuum hood 307, so that the vacuum hood 307 can be replaced to adapt to vacuum tests on stators of different shapes.

[0039] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. Vacuum stator testing device, characterized in that: Including: A test bench (1), which has a detection tabletop (101), and a gasket (102) is installed on the detection tabletop (101); A frame (103), which is installed on the test bench (1); A sealing assembly (2), which is installed on the frame (103), and the sealing assembly (2) includes: Two sets of lifting cylinders (201), which are installed on the frame (103), and the lifting cylinders (201) have telescopic shafts (202); A connection panel (203), which is connected to the two telescopic shafts (202), and a card hole (204) is provided on the connection panel (203); A connection component (3), which is installed on the connection panel (203), and the connection component (3) includes: Two sets of connection seats (301), which are installed on the connection panel (203), a fixed seat (302) is installed on the connection seat (301), and a connecting rod (303) is connected between the two fixed seats (302); A screw rod (304), which is threadedly connected to the fixed seat (302), and one end of the screw rod (304) is connected to a sliding clamp block (305) by a bearing; An insertion rod (308), which is inserted into the card hole (204), a vacuum hood (307) is installed at one end of the insertion rod (308), and a supporting disc (309) is sleeved on the insertion rod (308).

2. The vacuum stator testing device according to claim 1, wherein: Protrusions are provided on one side of the two connecting rods (303) close to each other, and sliding grooves adapted to the protrusions are provided on both sides of the sliding clamp block (305).

3. The vacuum stator testing device according to claim 2, wherein: The sliding clamp block (305) has a right-angle clamping groove, and a turntable (306) is installed at one end of the screw rod (304).

4. The vacuum stator test device according to claim 3, characterized in that: An anti-slip pad is provided at the contact position between the sliding clamp block (305) and the insertion rod (308).

5. The vacuum stator testing device according to claim 4, wherein: A grating sensor corresponding to the gasket (102) is further provided on the detection tabletop (101).

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