A rubber impregnated fiber type sleeve pressing tool

Abstract

The utility model discloses a kind of rubber impregnated fibre type sleeve pressing tool, it is related to test detection technical field. Including support frame, the support frame top is provided with fixed mechanism and pressing mechanism;Fixed mechanism includes fixed plate, fixed plate and support frame are connected between, fixed plate top is provided with notch, sliding block is slidably connected in notch. The utility model is provided with fixed mechanism and pressing mechanism, in the use process, manually rotating rotating handle drives bidirectional screw rotation, makes two sliding blocks along the notch of fixed plate top move towards or away from each other, to adjust the distance between the two to match sleeve outer diameter, clamps sleeve and forms seal under the action with sealing pad, the device can be flexibly adjusted according to different diameter or size rubber impregnated fibre type sleeve, adapt to different specifications of sleeve, improve the versatility of tool.

Description

Technical Field

[0001] This utility model relates to the field of testing and inspection technology, specifically to a pressure testing tool for a fiber-impregnated sleeve. Background Technology

[0002] Currently, when manufacturing fiber-impregnated transformer bushings, a sealing test is required. This test ensures that after the bushing is installed with the transformer bushing body, the overall airtightness of the bushing is reliable and there will be no leakage of transformer oil. In accordance with this requirement, the pressure testing devices used by bushing manufacturers are pressure testing fixtures designed to simulate actual operating conditions. That is, the sealing performance of the bushing is tested by transformer oil pressure.

[0003] However, existing power systems have bushings of different voltage levels, and the bushing sizes of each voltage level are different. As a result, the required pressure testing fixtures are also different in size. Traditional resin-impregnated fiber-type transformer bushing pressure testing fixtures are not convenient for performing sealing tests on bushings of different sizes, which limits their use and reduces work efficiency. Therefore, we propose a more convenient and practical resin-impregnated fiber-type bushing pressure testing fixture to address this issue. Utility Model Content

[0004] The purpose of this invention is to provide a pressure testing tool for resin-impregnated fiber sleeves to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure testing fixture for resin-impregnated fiber sleeves, comprising a support frame, wherein a fixing mechanism and a pressure testing mechanism are provided on the top of the support frame; the fixing mechanism includes a fixing plate, which is connected to the support frame; a slot is provided on the top of the fixing plate, and a sliding block is slidably connected in the slot; a through hole is provided on one side of the fixing plate, and a bidirectional screw is rotatably connected in the through hole; the outer wall of the bidirectional screw and the sliding block are threadedly connected; a rotating handle is fixedly connected to one end of the bidirectional screw; and a fixing component is provided on the top of the sliding block.

[0006] Furthermore, the fixing assembly includes a support plate connected to a sliding block, a clamping plate fixedly connected to one side of the top of the support plate, and a sealing gasket fixedly connected to one side of the clamping plate.

[0007] Furthermore, at least three L-shaped connecting plates are fixedly connected to the outer wall of the clamping plate. A through hole is opened on one side of the top of the connecting plate, and a lead screw is threaded into the through hole. A rotating ring is fixedly connected to one end of the lead screw, and an elastic clamping ring is rotatably connected to the other end.

[0008] Furthermore, the pressing mechanism includes a liquid storage tank, which is connected to a support plate. A through hole is provided on one side of the top of the liquid storage tank, and a feed pipe is fixedly connected inside the through hole.

[0009] Furthermore, a through hole is provided in the center of the top of the liquid storage tank, and a connecting pipe is fixedly connected inside the through hole. A water pump is installed at one end of the connecting pipe, and a solenoid valve is installed at the other end.

[0010] Furthermore, a pressure gauge is installed on the outer wall of the connecting pipe, and a pressure-pressuring pipe is fixedly connected to one side of the solenoid valve, the pressure-pressuring pipe passing through the clamping plate and the sealing gasket.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This pressure-pressurizing fixture for adhesive-impregnated fiber sleeves, through the setting of a fixing mechanism and a pressing mechanism, firstly places the adhesive-impregnated fiber sleeve horizontally between clamping plates, aligning the part to be fixed with the clamping area of ​​the clamping plate and the sealing gasket. Then, manually rotating the handle drives the bidirectional screw to rotate, causing the two sliding blocks to move towards or away from each other along the groove on the top of the fixing plate, thereby clamping the sleeve and forming a seal under the action of the sealing gasket. Subsequently, manually rotating the rotating ring on the top of the connecting plate drives the lead screw to rotate, thereby pushing the elastic clamping ring towards the surface of the sleeve for clamping. This device can be flexibly adjusted according to different diameters or sizes of adhesive-impregnated fiber sleeves, adapting to different specifications of sleeves, improving the versatility of the fixture, making it highly practical and suitable for widespread application.

[0012] Meanwhile, the pressure testing mechanism can monitor the pressure value in real time during the pressure testing process to ensure that the pressure is within a suitable range, thus guaranteeing the accuracy and safety of the pressure testing work. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the fixing mechanism structure of this utility model; Figure 3 This is a schematic diagram of the pressing mechanism of this utility model.

[0014] In the diagram: 1. Support frame; 2. Fixing mechanism; 201. Fixing plate; 202. Sliding block; 203. Bidirectional screw; 204. Rotating handle; 205. Support plate; 206. Clamping plate; 207. Connecting plate; 208. Sealing gasket; 209. Lead screw; 210. Rotating ring; 211. Elastic clamping ring; 3. Pressurizing mechanism; 301. Liquid storage tank; 302. Feed pipe; 303. Connecting pipe; 304. Water pump; 305. Solenoid valve; 306. Pressure gauge; 307. Pressurizing pipe. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] In the transformer manufacturing process, pressure testing fixtures are required. The pressure testing fixture provided by this utility model is specifically used for bushing pressure testing during transformer manufacturing. When using this equipment for pressure testing, when placing the bushing, ensure that the part to be fixed is aligned with the clamping area of ​​the clamping plate 206 and the sealing gasket 208. After fixing, check the fit between the sealing gasket 208 and the bushing to ensure there are no gaps, preventing liquid leakage during pressure testing from affecting the accuracy of the test. During pressure testing, the pressure gauge 306 value should be observed in real time to ensure that the pressure is within the specified range, avoiding overpressure that could damage the bushing or cause safety hazards.

[0017] like Figures 1-3 As shown, this utility model provides a technical solution: a pressure testing fixture for a fiber-impregnated sleeve, including a support frame 1, a fixing mechanism 2 and a pressure testing mechanism 3 on the top of the support frame 1; the fixing mechanism 2 includes a fixing plate 201, which is connected to the support frame 1, a slot is opened on the top of the fixing plate 201, a sliding block 202 is slidably connected in the slot, a through hole is opened on one side of the fixing plate 201, a bidirectional screw 203 is rotatably connected in the through hole, the outer wall of the bidirectional screw 203 and the sliding block 202 are threadedly connected, a rotating handle 204 is fixedly connected to one end of the bidirectional screw 203, and a fixing component is provided on the top of the sliding block 202.

[0018] like Figure 2 As shown, the fixing assembly includes a support plate 205, which is connected to a sliding block 202. A clamping plate 206 is fixedly connected to one side of the top of the support plate 205, and a sealing gasket 208 is fixedly connected to one side of the clamping plate 206. At least three L-shaped connecting plates 207 are fixedly connected to the outer wall of the clamping plate 206. A through hole is opened on one side of the top of the connecting plate 207, and a lead screw 209 is threaded into the through hole. A rotating ring 210 is fixedly connected to one end of the lead screw 209, and an elastic clamping ring 211 is rotatably connected to the other end.

[0019] It should be noted that during use, the glue-impregnated fiber sleeve is first placed horizontally between the clamping plates 206, aligning the part to be fixed with the clamping area of ​​the clamping plate 206 and the sealing gasket 208. Then, the handle 204 is manually rotated to drive the bidirectional screw 203 to rotate, causing the two sliding blocks 202 to move towards or away from each other along the groove on the top of the fixing plate 201, thereby adjusting the distance between them to match the outer diameter of the sleeve, clamping the sleeve and forming a seal with the sealing gasket 208. Subsequently, the rotating ring 210 on the top of the connecting plate 207 is manually rotated to drive the screw 209 to rotate, thereby pushing the elastic clamping ring 211 to move towards the surface of the sleeve for clamping. The fixing mechanism 2 can prevent liquid leakage during the pressurization process, ensuring the normal operation of the pressurization work and improving the accuracy and reliability of the pressurization.

[0020] like Figure 3 As shown, the pressure-pressing mechanism 3 includes a liquid storage tank 301, which is connected to the support plate 205. A through hole is opened on one side of the top of the liquid storage tank 301, and a feed pipe 302 is fixedly connected in the through hole. A through hole is opened in the center of the top of the liquid storage tank 301, and a connecting pipe 303 is fixedly connected in the through hole. A water pump 304 is installed at one end of the connecting pipe 303, and a solenoid valve 305 is installed at the other end. A pressure gauge 306 is installed on the outer wall of the connecting pipe 303. A pressure-pressing pipe 307 is fixedly connected to one side of the solenoid valve 305. The pressure-pressing pipe 307 passes through the clamping plate 206 and the sealing gasket 208.

[0021] It is important to note that during use, before pressurization, the pressurization medium (such as hydraulic oil or water) is first injected into the storage tank 301 through the feed pipe 302, and the pressurization pipe 307 is inserted into the sleeve. When starting, the water pump 304 starts to draw the liquid in the storage tank 301 out through the connecting pipe 303. The pressure gauge 306 on the connecting pipe 303 displays the current liquid pressure value in real time. The liquid flows through the solenoid valve 305 and then enters the pressurization pipe 307. During pressurization, the solenoid valve 305 is opened, and the liquid enters the sleeve through the pressurization pipe 307 for testing. After pressurization is completed, the solenoid valve 305 is closed and the water pump 304 is stopped, completing the entire liquid pressurization process. The pressurization mechanism 3 can monitor the pressure value in real time during the pressurization process to ensure that the pressurization pressure is within a suitable range, thus ensuring the accuracy and safety of the pressurization work.

[0022] During use, the glue-impregnated fiber sleeve is first placed horizontally between the clamping plates 206. Then, the handle 204 is manually rotated to drive the bidirectional screw 203 to rotate, causing the two sliding blocks 202 to move towards or away from each other along the groove on the top of the fixed plate 201, thereby clamping the sleeve and forming a seal with the sealing gasket 208. Subsequently, the rotating ring 210 on the top of the connecting plate 207 is manually rotated to drive the lead screw 209 to rotate, thereby pushing the elastic clamping ring 211 to move towards the sleeve surface for clamping. After clamping is completed, the water pump 304 is started to pump the stored liquid. Liquid in tank 301 is drawn out through connecting pipe 303. Pressure gauge 306 on connecting pipe 303 displays the current liquid pressure value in real time. After flowing through solenoid valve 305, the liquid enters pressure pipe 307. During pressure testing, solenoid valve 305 is opened, and liquid enters the sleeve through pressure pipe 307 for testing. After pressure testing is completed, solenoid valve 305 is closed and water pump 304 is stopped, completing the entire liquid pressurization process. This device can be flexibly adjusted according to different diameters or sizes of impregnated fiber sleeves, adapting to different specifications of sleeves and improving the versatility of tooling.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A rubber impregnated fibre type casing press tool comprising a support frame (1) characterised in that: The support frame (1) is provided with a fixing mechanism (2) and a pressing mechanism (3) at the top. The fixing mechanism (2) includes a fixing plate (201), which is connected to the support frame (1). The top of the fixing plate (201) has a slot, and a sliding block (202) is slidably connected in the slot. A through hole is opened on one side of the fixing plate (201), and a bidirectional screw (203) is rotatably connected in the through hole. The outer wall of the bidirectional screw (203) and the sliding block (202) are threaded together. A rotating handle (204) is fixedly connected to one end of the bidirectional screw (203). A fixing component is provided on the top of the sliding block (202).

2. The pressure testing tool for a resin-impregnated fiber-reinforced sleeve according to claim 1, characterized in that: The fixing component includes a support plate (205), which is connected to a sliding block (202). A clamping plate (206) is fixedly connected to one side of the top of the support plate (205), and a sealing gasket (208) is fixedly connected to one side of the clamping plate (206).

3. The pressure testing tool for a resin-impregnated fiber-reinforced sleeve according to claim 2, characterized in that: At least three L-shaped connecting plates (207) are fixedly connected to the outer wall of the clamping plate (206). A through hole is opened on one side of the top of the connecting plate (207), and a screw rod (209) is threaded into the through hole. A rotating ring (210) is fixedly connected to one end of the screw rod (209), and an elastic clamping ring (211) is rotatably connected to the other end.

4. The pressure testing tool for a resin-impregnated fiber-reinforced sleeve according to claim 1, characterized in that: The pressing mechanism (3) includes a liquid storage tank (301), which is connected to the support plate (205). A through hole is provided on one side of the top of the liquid storage tank (301), and a feed pipe (302) is fixedly connected in the through hole.

5. The pressure testing tool for a resin-impregnated fiber-reinforced sleeve according to claim 4, characterized in that: The liquid storage tank (301) has a through hole in the center of the top, and a connecting pipe (303) is fixedly connected in the through hole. A water pump (304) is installed at one end of the connecting pipe (303), and a solenoid valve (305) is installed at the other end.

6. The pressure testing tool for a resin-impregnated fiber-reinforced sleeve according to claim 5, characterized in that: A pressure gauge (306) is installed on the outer wall of the connecting pipe (303), and a pressure-pressuring pipe (307) is fixedly connected to one side of the solenoid valve (305). The pressure-pressuring pipe (307) passes through the clamping plate (206) and the sealing gasket (208).

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