Mounting bracket for paddle main connection sensor of speed regulator of axial-flow propeller unit

Abstract

An axial flow propeller unit speed regulator paddle main connection sensor installation support comprises a sensor support, a plurality of first connection screw holes and a plurality of second connection screw holes are formed in the sensor support, and the top of the sensor support is matched with third connection screw holes in a first welding plate through the first connection screw holes and fixedly connected with the third connection screw holes through bolts. The first welding plate is welded and fixed to the machine cover, the sensor support is connected and fixed to the sensor through the second connecting screw hole and a bolt, and the sensor is provided with a sensor lead screw. By the adoption of the structure, the whole device is composed of detachable devices, and all the devices can be flexibly detached and are convenient to maintain and replace; the U-shaped mounting bracket can be used for mounting three blade sensors at the same time, so that the aim of triple-redundancy configuration of the blade main connection sensor is fulfilled, and the safety and the stability of a blade main connection opening signal are effectively improved; the installation support is reasonable in layout, daily maintenance and debugging are facilitated, and the redundancy performance of the sensor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy and hydropower monitoring equipment, in particular to an installation bracket for a blade main connection sensor of an axial flow propeller unit speed regulator. Background Art

[0002] The speed governor of the axial flow propeller unit in the hydropower station needs to collect the blade main connection opening signal through the blade main connection sensor. However, in the powerhouse of the hydropower station, there are few places suitable for installing the blade main connection sensor, and the suitable installation places are relatively narrow, which leads to most hydropower stations only installing one blade main connection sensor. And one mounting bracket is only equipped with one blade main connection sensor, resulting in low utilization of the mounting bracket, and the effect of redundant configuration cannot be achieved, which has a great impact on the normal and safe operation of the unit. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a mounting bracket for the blade main connection sensor of the speed regulator of an axial-flow propeller unit. The whole device is composed of detachable components, and various components can be flexibly disassembled for easy maintenance and replacement; the U-shaped mounting bracket can simultaneously install three blade sensors, thereby achieving the purpose of triple redundant configuration of the blade main connection sensor and effectively improving the safety and stability of the blade main connection opening signal; the mounting bracket has a reasonable layout and is convenient for daily maintenance and debugging; the three blade sensors are installed on three planes, which are independent of each other and do not affect each other, thereby improving the redundancy performance of the sensor.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an axial flow propeller unit speed regulator blade main sensor installation bracket, including a sensor bracket, the sensor bracket is provided with a plurality of first connecting screw holes and a plurality of second connecting screw holes, the top of the sensor bracket is matched with the third connecting screw hole on the first welding plate through the first connecting screw hole and fixed by bolts, the first welding plate is welded and fixed to the machine cover, the sensor bracket is connected and fixed to the sensor through the second connecting screw hole and bolts, a sensor screw is provided on the sensor, the sensor screw is aligned with a plurality of matching holes arranged on the sensor pull plate, a plurality of fourth connecting screw holes are provided on the sensor pull plate, the fourth connecting screw hole is matched with the fifth connecting screw hole on the second welding plate and fixed by bolts, and the second welding plate is fixed to the return bearing by bolts.

[0005] In a preferred solution, the sensor bracket is a U-shaped plate structure, and a plurality of groups of second connecting screw holes are provided on three sides of the sensor bracket.

[0006] In a preferred solution, the matching hole is a strip-shaped hole, the width of the matching hole matches the sensor screw rod, and the length of the matching hole is greater than the diameter of the sensor screw rod.

[0007] In a preferred solution, the sensor pull plate is a U-shaped plate.

[0008] In a preferred solution, the second welding plate is provided with an opening groove and a positioning plate.

[0009] The utility model provides an axial flow propeller unit speed governor blade main connection sensor mounting bracket, which has the following beneficial effects by adopting the above structure:

[0010] (1) The whole device is composed of detachable components, and various components can be flexibly disassembled for easy maintenance and replacement;

[0011] (2) The U-shaped mounting bracket can be used to install three blade sensors at the same time, achieving the purpose of triple redundant configuration of blade main connection sensors and effectively improving the safety and stability of the blade main connection opening signal;

[0012] (3) The layout of the mounting bracket is reasonable, which is convenient for daily maintenance and debugging. The three blade sensors are installed on three planes, which are independent of each other and do not affect each other, thus improving the redundancy performance of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0014] Figure 1 It is a schematic diagram of the overall structure assembly and use of the utility model.

[0015] Figure 2 It is a schematic diagram of the overall structure assembly and use of the utility model.

[0016] Figure 3 This is a schematic diagram of the first welding plate structure of the utility model.

[0017] Figure 4 This is a schematic diagram of the sensor bracket structure of the present utility model.

[0018] Figure 5 This is a schematic diagram of the sensor pull plate structure of the utility model.

[0019] Figure 6 This is a schematic diagram of the second welding plate structure of the utility model.

[0020] In the figure: the first welding plate 1, the sensor bracket 2, the sensor pull plate 3, the second welding plate 4, the machine cover 5, the return bearing 6, the sensor 7, the sensor screw 8, the third connecting screw hole 9, the first connecting screw hole 10, the second connecting screw hole 11, the matching hole 12, the fourth connecting screw hole 13, the positioning plate 14, the opening groove 15, and the fifth connecting screw hole 16. DETAILED DESCRIPTION

[0021] like Figure 1-6In the invention, a main sensor mounting bracket for a blade of an axial-flow propeller unit speed regulator is provided, including a sensor bracket 2, wherein the sensor bracket 2 is provided with a plurality of first connecting screw holes 10 and a plurality of second connecting screw holes 11, the top of the sensor bracket 2 is matched with the third connecting screw hole 9 on the first welding plate 1 through the first connecting screw hole 10 and fixed by bolt connection, the first welding plate 1 is welded and fixed to the machine cover 5, the sensor bracket 2 is connected and fixed to the sensor 7 through the second connecting screw hole 11 and bolts, the sensor 7 is provided with a sensor screw rod 8, the sensor screw rod 8 is aligned with a plurality of matching holes 12 arranged on the sensor pull plate 3, the sensor pull plate 3 is provided with a plurality of fourth connecting screw holes 13, the fourth connecting screw hole 13 is matched with the fifth connecting screw hole 16 on the second welding plate 4 and fixed by bolt connection, and the second welding plate 4 is fixed to the return bearing 6 by bolt connection.

[0022] In a preferred solution, the sensor bracket 2 is a U-shaped plate structure, and a plurality of groups of second connecting screw holes 11 are provided on three sides of the sensor bracket 2 .

[0023] In a preferred solution, the matching hole 12 is a strip-shaped hole, the width of the matching hole 12 matches the sensor screw rod 8 , and the length of the matching hole 12 is greater than the diameter of the sensor screw rod 8 .

[0024] In a preferred solution, the sensor pull plate 3 is a U-shaped plate.

[0025] In a preferred solution, the second welding plate 4 is provided with an opening groove 15 and a positioning plate 14 .

[0026] The method of using the utility model is as follows: the second welding plate 4 of the blade head is installed on the return bearing 6, the sensor pull plate 3 is connected and fixed with the second welding plate 4 of the blade head, the sensor pull plate 3 is connected with the sensor screw rod 8 by a fixing screw, the sensor 7 is installed on the sensor bracket 2 and fixed by screws, the sensor bracket 2 is connected and fixed with the top first welding plate 1 by screws, and the top first welding plate 1 is welded and installed on the top of the hood 5;

[0027] The sensor bracket 2 has a hole for mounting the sensor 7 and the first welding plate 1;

[0028] The first welding plate 1 has a hole for connecting and fixing the sensor bracket 2, and can be welded and fixed in the hood 5;

[0029] The sensor pull plate 3 has a hole for connecting and fixing the sensor screw rod 8, and can be installed and fixed to the second welding plate 4 at the blade head;

[0030] A hole is opened on the second welding plate 4 at the blade head for mounting on the return bearing 6 and being connected and fixed to the sensor pull plate 3;

[0031] During the blade opening and closing process, the return bearing 5 will move up and down, drive the sensor screw rod 8 through the sensor pull plate 3, and then drive the slider structure on the sensor screw rod 8 to move on the sensor 7, and send out the blade opening signal.

[0032] The beneficial effects of the utility model are as follows: the whole device is composed of detachable components, various components can be flexibly disassembled, and maintenance and replacement are convenient; the U-shaped mounting bracket can be used to install three blade sensors at the same time, realizing the purpose of triple redundant configuration of the blade main connection sensor, and effectively improving the safety and stability of the blade main connection opening signal; the mounting bracket has a reasonable layout, which is convenient for daily maintenance and debugging, and the three blade sensors are installed in three planes, which are independent of each other and do not affect each other, thereby improving the redundancy performance of the sensor.

Claims

1. A sensor mounting bracket for a blade of an axial flow propeller unit speed governor, comprising a sensor bracket (2), characterized in that: The sensor bracket (2) is provided with a plurality of first connection screw holes (10) and a plurality of second connection screw holes (11); the top of the sensor bracket (2) is matched with a third connection screw hole (9) on the first welding plate (1) through the first connection screw hole (10) and is fixed by bolt connection; the first welding plate (1) is welded and fixed to the machine cover (5); the sensor bracket (2) is connected and fixed to the sensor (7) through the second connection screw hole (11) and bolts; the sensor (7) is provided with a sensor screw rod (8); the sensor screw rod (8) is aligned and matched with a plurality of matching holes (12) provided on the sensor pull plate (3); the sensor pull plate (3) is provided with a plurality of fourth connection screw holes (13); the fourth connection screw hole (13) is matched with a fifth connection screw hole (16) on the second welding plate (4) and is fixed by bolt connection; the second welding plate (4) is fixed to the return bearing (6) by bolt connection.

2. The axial flow propeller unit speed governor blade main connection sensor mounting bracket according to claim 1, characterized in that: The sensor bracket (2) is a U-shaped plate structure, and a plurality of groups of second connection screw holes (11) are provided on three sides of the sensor bracket (2).

3. The axial flow propeller unit speed governor blade main connection sensor mounting bracket according to claim 1, characterized in that: The matching hole (12) is a strip-shaped hole, the width of the matching hole (12) matches the sensor screw rod (8), and the length of the matching hole (12) is greater than the diameter of the sensor screw rod (8).

4. The axial flow propeller unit speed governor blade main connection sensor mounting bracket according to claim 1, characterized in that: The sensor pull plate (3) is a U-shaped plate.

5. The axial flow propeller unit speed governor blade main connection sensor mounting bracket according to claim 1, characterized in that: The second welding plate (4) is provided with an opening groove (15) and a positioning plate (14).

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