Water-turbine generator set brake damper pressing test tool

Abstract

The utility model provides a water-turbine generator set brake damper pressing test tool, which belongs to the technical field of test detection devices and comprises a supporting bottom plate, a brake body is placed on the upper surface of the supporting bottom plate, and a first fixing plate and a second fixing plate are fixedly connected to the edges of the surfaces of the left side and the right side of the supporting bottom plate respectively. A groove is formed in the side, close to the first fixing plate, of the upper surface of the supporting bottom plate, a one-way lead screw is rotationally connected to the interior of the groove, a connecting block is in threaded connection with the outer surface of the one-way lead screw, a first limiting strip is fixedly connected to the upper surface of the connecting block, and the first limiting strip is slidably connected to the upper surface of the supporting bottom plate; the water-turbine generator set brake air brake pressure test tool provided by the utility model effectively solves the problems of large detection difficulty, time and labor waste and low efficiency of a brake air brake test, accelerates the construction progress of installation of the brake air brake, and provides powerful guarantee for subsequent process construction.

Description

Technical Field

[0001] This utility model relates to the field of pressure testing technology, specifically a pressure testing tool for the brake airlock of a hydro-generator set. Background Technology

[0002] Mechanical brakes for hydro-generators often adopt the type of air brake. According to the maintenance guidelines for hydro-generators, newly installed and overhauled air brakes should undergo pressure testing. Currently, pressure testing is conducted by relevant testing units transporting the equipment to the factory for testing, which requires testing fees, equipment transportation vehicles, and personnel to unload the equipment. The procedure is cumbersome, inconvenient, time-consuming, and labor-intensive, affecting the installation schedule. Therefore, this utility model provides a pressure testing tool for the air brake of a hydro-generator set. Utility Model Content

[0003] To address the issue of pressure testing tools for the brake damper of a hydro-generator set, this utility model provides a pressure testing tool for the brake damper of a hydro-generator set.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] The device includes a support base plate, on the upper surface of which a brake body is placed. A first fixing plate and a second fixing plate are fixedly connected to the left and right edges of the support base plate, respectively. A groove is formed on the upper surface of the support base plate near the first fixing plate. A one-way screw is rotatably connected inside the groove. A connecting block is threaded onto the outer surface of the one-way screw. A first limiting strip is fixedly connected to the upper surface of the connecting block. The first limiting strip is slidably connected to the upper surface of the support base plate. The one-way screw passes through the first fixing plate.

[0006] It also includes a first support plate and a second support plate, which are fixedly connected to the front and rear surfaces of the support base plate, respectively. The surfaces of the first and second support plates are respectively provided with four reserved holes, which are distributed in a square shape on the surfaces of the first and second support plates. The reserved holes of the first and second support plates respectively penetrate the first, second, third, and fourth rails. The oil injection port on the surface of the brake body is connected to the pressure oil pipe. One end of the pressure oil pipe is connected to the oil injection line of the pressure oil pump. A pressure gauge is installed between the brake body and the pressure oil pipe connected to the pressure oil pump. Two pairs of wedge plates are placed above the brake body. The wedge plates include an upper wedge plate and a lower wedge plate, which fit together. The two pairs of wedge plates are placed above the brake body.

[0007] As a further description of the above technical solution:

[0008] A shock-absorbing component is fixedly connected to the inner surface of the second fixing plate;

[0009] The shock absorption assembly includes a fixed block located on the inner surface of the second fixed plate. A damping expansion joint is fixedly connected to the side surface of the fixed block away from the second fixed plate. A second limiting strip is fixedly connected to one end of the damping expansion joint. When the brake vibrates during the test, the shock absorption assembly can effectively absorb the vibration energy, protect the brake, and increase stability.

[0010] As a further description of the above technical solution:

[0011] A fixing frame is fixedly connected to the bottom surface of the support base plate. The surface of the fixing frame has holes, and fixing bolts are threaded into the holes to stably fix the entire test tool in a suitable position.

[0012] As a further description of the above technical solution:

[0013] The one-way lead screw is fixedly connected to a rotating handle at one end that passes through the first fixed plate. The surface of the rotating handle is embedded with anti-slip texture to facilitate adjustment of the position of the first limit bar.

[0014] As a further description of the above technical solution:

[0015] A rubber pad is fixedly connected to the surface of the first limiting strip near the brake body to increase stability and protect the brake body.

[0016] As a further description of the above technical solution:

[0017] The surfaces of the first, second, third, and fourth rails are all coated with an anti-rust coating to improve their corrosion resistance and extend their service life.

[0018] The beneficial effects of this utility model are:

[0019] This utility model provides a brake airlock pressure testing tool. The brake body is placed on a support base plate. Based on the brake body's pressing stroke principle, two pairs of wedge plates are placed above the brake body. The brake body automatically lifts upward to press the first and second steel rails above. The wedge plates are observed for any abnormalities. This tool effectively solves the problems of difficult, time-consuming, labor-intensive, and inefficient brake airlock testing, speeds up the installation progress of the brake airlock, and provides strong support for subsequent construction processes.

[0020] By using a one-way lead screw and a first limiting bar, the first limiting bar can be moved to fit against the brake body during use, thus keeping it fixed. This solves the problem of brake displacement that may occur during pressure testing and increases the stability of the device. Attached Figure Description

[0021] The following figures are shown to more clearly illustrate a pressure test tool for a hydro-generator set brake damper;

[0022] Figure 1 This is an overall appearance drawing of the present utility model;

[0023] Figure 2 This is a structural diagram of the supporting base plate of this utility model;

[0024] Figure 3 This is a structural diagram of the internal brake of this utility model;

[0025] Figure 4 This is a top view of the present invention;

[0026] Figure 5 This is a side view of the present invention.

[0027] The labels in the attached diagram;

[0028] 1. Support base plate; 2. First support plate; 3. Second support plate; 4. First fixing plate; 5. Second fixing plate; 6. Connecting block; 7. First limiting strip; 8. Shock absorption assembly; 801. Fixing block; 802. Damping expansion joint; 803. Second limiting strip; 9. Wedge plate; 901. Upper wedge plate; 902. Lower wedge plate; 10. Brake body; 11. First rail; 12. Second rail; 13. Third rail; 14. Fourth rail; 15. Fixing frame; 16. Fixing bolt; 17. Rotating handle; 18. Rubber pad; 19. One-way lead screw; 20. Pressure oil pump; 21. Pressure gauge. Detailed Implementation

[0029] Please refer to the attached document. Figures 1-4This application illustrates a pressure testing tool for a hydro-generator set brake damper, provided in an embodiment of this application. It includes a support base plate 1, with a brake body 10 placed on its upper surface. A first fixing plate 4 and a second fixing plate 5 are fixedly connected to the left and right edges of the support base plate 1, respectively. A groove is formed on the upper surface of the support base plate 1 near the first fixing plate 4. A one-way screw 19 is rotatably connected inside the groove. A connecting block 6 is threaded onto the outer surface of the one-way screw 19. A first limiting strip 7 is fixedly connected to the upper surface of the connecting block 6. The first limiting strip 7 is slidably connected to the upper surface of the support base plate 1. The one-way screw 19 passes through the first fixing plate 4. Through the one-way screw and the first limiting strip, the position of the first limiting strip is moved during use to bring it into contact with the brake body, keeping it fixed. This solves the problem of potential brake displacement during the pressure test and increases the stability of the device.

[0030] It also includes a first support plate 2 and a second support plate 3, which are fixedly connected to the front and rear sides of the support base plate 1, respectively. Four pre-drilled holes are respectively provided on the surfaces of the first support plate 2 and the second support plate 3, arranged in a square pattern. These pre-drilled holes penetrate the first rail 11, the second rail 12, the third rail 13, and the fourth rail 14, respectively. The oil inlet on the surface of the brake body 10 is connected to a pressure oil pipe. One end of the pressure oil pipe is connected to the oil inlet line of the pressure oil pump 20. A pressure gauge 2 is installed between the brake body 10 and the pressure oil pipe connected to the pressure oil pump 20. 1. Two pairs of wedge plates 9 are placed above the brake body 10. The wedge plates 9 include an upper wedge plate 901 and a lower wedge plate 902. The upper wedge plate 901 and the lower wedge plate 902 fit together. The two pairs of wedge plates 9 are placed above the brake body 10. The brake body is placed on the support base plate. Through the pressure stroke principle of the brake body, two pairs of wedge plates are placed above the brake body. The brake body automatically lifts upward to press the first and second steel rails above. Observe whether there are any abnormalities in the wedge plates. This effectively solves the problems of high difficulty, time-consuming and labor-intensive testing and low efficiency of brake air damper, speeds up the construction progress of brake air damper installation, and provides a strong guarantee for subsequent construction processes.

[0031] The inner surface of the second fixed plate 5 is fixedly connected to the shock absorption component 8.

[0032] The shock absorption assembly 8 includes a fixing block 801, which is located on the inner surface of the second fixing plate 5. A damping expansion joint 802 is fixedly connected to the side surface of the fixing block 801 away from the second fixing plate 5. A second limiting strip 803 is fixedly connected to one end of the damping expansion joint 802. When the brake body 10 is placed on the support base plate 1 during use, one side of the brake body 10 is in contact with the second limiting strip 803. The damping expansion joint 802 can absorb the vibration of the brake body 10 during use, making it more stable during operation.

[0033] A fixing frame 15 is fixedly connected to the bottom surface of the support base plate 1. The surface of the fixing frame 15 has holes, and the inside of the holes is threaded with fixing bolts 16. By setting the fixing frame 15, the contact area between the entire device and the bottom surface is increased during use. At the same time, the fixing bolts 16 fix it to the ground, increasing stability.

[0034] One end of the one-way screw 19 that passes through the first fixed plate 4 is fixedly connected to a rotating handle 17. The surface of the rotating handle 17 is embedded with anti-slip texture. By setting the rotating handle 17, the position of the first limit bar 7 can be adjusted during use, so that the operator can rotate the one-way screw 19 to adjust the position of the first limit bar 7, thereby limiting and fixing the brake body 10.

[0035] A rubber pad 18 is fixedly connected to the side surface of the first limiting bar 7 near the brake body 10. With the setting of the rubber pad 18, when the first limiting bar 7 is moved, the rubber pad 18 plays a buffering role on the brake body 10, which improves the protection of the brake 10.

[0036] The surfaces of the first rail 11, the second rail 12, the third rail 13, and the fourth rail 14 are all coated with an anti-rust coating, which extends the service life of the rails and improves their efficiency.

[0037] Working principle:

[0038] During operation, the brake body 10 is hoisted into the center of the support base plate 1 platform at the bottom of the device, so that one side of the brake body 10 is in contact with the second limiting strip 803. Then, by rotating the rotating handle 17, the first limiting strip 7 is in contact with the other side of the brake body 01 to keep it fixed. The rail is inserted into the corresponding reserved hole of the steel plate, and the oil pipe is connected to the oil pipe interface of the brake body 10 for oil filling. After the oil is full, the brake body 10 is automatically lifted to the surface of the upper rail, so that the brake body 10 is in a compressed state. If there are no abnormalities after 30 minutes of pressure maintenance, the quality of the brake can be checked.

[0039] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0040] It should be understood that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. This invention is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A pressure testing tool for the brake damper of a hydro-generator unit, comprising a supporting base plate (1), characterized in that: The brake body (10) is placed on the upper surface of the support base plate (1). The first fixing plate (4) and the second fixing plate (5) are fixedly connected to the left and right edges of the support base plate (1), respectively. A groove is provided on the upper surface of the support base plate (1) near the first fixing plate (4). A one-way screw (19) is rotatably connected inside the groove. A connecting block (6) is threaded on the outer surface of the one-way screw (19). A first limiting strip (7) is fixedly connected to the upper surface of the connecting block (6). The first limiting strip (7) is slidably connected to the upper surface of the support base plate (1). The one-way screw (19) passes through the first fixing plate (4). It also includes a first support plate (2) and a second support plate (3). The first support plate (2) and the second support plate (3) are respectively fixedly connected to the front and rear sides of the support base plate (1). The surfaces of the first support plate (2) and the second support plate (3) are respectively provided with four reserved holes. The four reserved holes are distributed in a square on the surfaces of the first support plate (2) and the second support plate (3). The reserved holes corresponding to the first support plate (2) and the second support plate (3) respectively penetrate the first rail (11), the second rail (12), the third rail (13), and the fourth rail (14). The oil inlet on the surface of the brake body (10) is connected to the pressure oil pipe. One end of the pressure oil pipe is connected to the oil inlet of the pressure oil pump (20). A pressure gauge (21) is installed between the brake body (10) and the pressure oil pipe connected to the pressure oil pump (20). Two pairs of wedge plates (9) are placed above the brake body (10). The wedge plates (9) include an upper wedge plate (901) and a lower wedge plate (902). The upper wedge plate (901) and the lower wedge plate (902) fit together. The two pairs of wedge plates (9) are placed above the brake body (10).

2. The pressure testing tool for the brake air damper of a hydro-generator unit according to claim 1, characterized in that: The inner surface of the second fixing plate (5) is fixedly connected with a shock-absorbing component (8); The shock absorption assembly (8) includes a fixing block (801) located on the inner surface of the second fixing plate (5). A damping expansion joint (802) is fixedly connected to the side surface of the fixing block (801) away from the second fixing plate (5). A second limiting strip (803) is fixedly connected to one end of the damping expansion joint (802).

3. The pressure testing tool for the brake air damper of a hydro-generator unit according to claim 1, characterized in that: A fixing frame (15) is fixedly connected to the bottom surface of the supporting base plate (1). The surface of the fixing frame (15) has holes, and a fixing bolt (16) is threaded into the inside of the holes.

4. The pressure testing tool for the brake air damper of a hydro-generator unit according to claim 1, characterized in that: The one-way lead screw (19) is fixedly connected to a rotating handle (17) at one end of the first fixed plate (4), and the surface of the rotating handle (17) is embedded with anti-slip texture.

5. The pressure testing tool for the brake air damper of a hydro-generator unit according to claim 2, characterized in that: The first limiting strip (7) is fixedly connected to a rubber pad (18) on the side surface near the brake body (10).

6. The pressure testing tool for the brake airlock of a hydro-generator unit according to claim 2, characterized in that: The surfaces of the first rail (11), the second rail (12), the third rail (13), and the fourth rail (14) are all coated with an anti-rust coating.

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