Water turbine seat ring guide vane assembling and positioning device

Abstract

The utility model relates to a water turbine seat ring guide vane assembling and positioning device, and relates to the technical field of water turbines. The water wheel comprises a water wheel body and a wheel shaft arranged in the water wheel body, a plurality of blades are arranged on the circumferential side of the wheel shaft, a plurality of positioning grooves are formed in the circumferential side of the wheel shaft, positioning mechanisms are arranged on the two side walls of each positioning groove, the blades are located in the positioning grooves respectively, and the positioning mechanisms are connected with the blades respectively. Each positioning mechanism comprises a mounting groove, a rotating block, a clamping block, a clamping groove, a spring groove and three springs, the mounting groove is formed in one side of the positioning groove, the rotating block is rotationally connected between the inner bottom wall and the inner top wall of the mounting groove, the spring groove is formed in one side of the rotating block, and the three springs are fixedly connected to one side wall of the spring groove; the positioning mechanism, the blades, the wheel shaft and the water wheel body are matched, and the positioning mechanism can slightly fix and position the blades and the wheel shaft to facilitate subsequent welding.

Description

Technical Field

[0001] The utility model relates to the technical field of water turbines, in particular to an assembly and positioning device for a water turbine seat ring and guide vanes. Background Art

[0002] A water turbine is a power machine that converts the energy of water flow into rotational mechanical energy. It belongs to the category of turbine machinery in fluid machinery. As early as around 100 BC, the prototype of a water turbine, the water wheel, appeared in China, which was used for irrigation and driving grain processing equipment. Most modern water turbines are installed in hydropower stations to drive generators to generate electricity. In a hydropower station, water from an upstream reservoir is led to the water turbine through a water diversion pipe, which drives the turbine runner to rotate and drives the generator to generate electricity. The water that has done work is discharged downstream through the tailwater pipe. The higher the water head and the greater the flow rate, the greater the output power of the water turbine.

[0003] The guide vanes of the turbine seat ring are usually installed by welding. If the guide vanes are offset during the welding installation process, it is easy to cause welding offset. The position of the guide vanes cannot be adjusted after welding, which affects the later use of the turbine and causes waste. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a turbine seat ring guide vane assembly positioning device, which has the effect of limiting the ring guide vanes in advance and reducing the occurrence of the ring guide vanes being offset and unusable during welding.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A turbine seat ring guide vane assembly positioning device comprises a turbine body and a wheel shaft arranged therein, a plurality of blades are arranged on the circumferential side of the wheel shaft, a plurality of positioning grooves are opened on the circumferential side of the wheel shaft, and both side walls of the plurality of positioning grooves are provided with positioning mechanisms, the plurality of blades are respectively located in the plurality of positioning grooves, the plurality of positioning mechanisms are respectively connected to the plurality of blades, each group of the positioning mechanisms comprises an installation groove, a rotating block, a clamping block, a clamping groove, a spring groove and three springs, the installation groove is opened on one side of the positioning groove, the rotating block is rotatably connected between the inner bottom wall and the inner top wall of the installation groove, the spring groove is opened on one side of the rotating block, the three springs are fixedly connected to one side wall of the spring groove, the clamping block is fixedly connected to one side of the three springs, the clamping groove is opened on one side of the blade, and the clamping block is slidably connected in the clamping groove.

[0007] By adopting the above technical solution, the positioning mechanism, the blades, the axle and the water wheel body cooperate with each other, and the positioning mechanism can slightly fix the blades on the axle to facilitate subsequent welding.

[0008] In a preferred example, the utility model can be further configured as follows: telescopic rods are arranged in the three springs, and the three telescopic rods are fixedly connected between one side of the clamping block and the side wall of the spring groove.

[0009] By adopting the above technical solution, the telescopic rod can prevent the spring from being compressed or bending and deforming when it recovers elastically.

[0010] In a preferred example, the utility model can be further configured as follows: an adjustment seat is provided at the lower end of the wheel axle, a connecting column is rotatably provided at the upper end of the adjustment seat, and a plurality of adjustment blocks are fixedly connected to the upper end of the adjustment seat.

[0011] By adopting the above technical solution, the adjustment block can rotate along with the adjustment seat to adjust the angle of the blade.

[0012] In a preferred example, the utility model can be further configured as follows: the upper end of the adjustment seat is fixedly connected with a connecting shaft, and the upper end of the connecting shaft movably passes through the upper end of the connecting column and is fixedly connected to a limiting block, the upper end of the limiting block is provided with a screw, and the screw thread passes through the lower end of the limiting block, and the upper end of the connecting column is provided with a plurality of circular grooves.

[0013] By adopting the above technical solution, the limit block, the connecting shaft, the circular groove and the screw rod can conveniently limit the adjustment seat to prevent the adjustment seat from continuing to rotate.

[0014] In a preferred example, the utility model can be further configured as follows: a plurality of connection grooves are opened on the circumferential side of the connection column, a rubber strip is fixedly connected to one side wall of each of the connection grooves, and a gear block is fixedly connected to the lower end of the adjustment seat.

[0015] By adopting the above technical solution, the rubber strip can increase the friction between the connecting column and the wheel axle, thereby achieving a micro-fixing effect.

[0016] In summary, the present invention includes at least one of the following beneficial technical effects:

[0017] 1. A positioning mechanism, blades, axles and a water wheel body are provided. The blades are inserted downward from the notch of the positioning groove. The clamping block is subjected to the force from one side of the blade, and the spring is in a compressed state. When the clamping block reaches the notch of the clamping groove, the spring pushes the clamping block into the clamping groove due to its own elastic recovery. The positioning mechanism can fix the blades and the axle to facilitate subsequent welding, improve the welding effect, and reduce the error rate of the ring guide vane welding.

[0018] 2. An adjusting seat, an adjusting block, a limiting block, a connecting shaft, a screw, a circular groove, a connecting groove, a rubber strip and a screw are provided. The connecting column is inserted into the wheel axle, and the adjusting seat is driven to rotate through the gear block. The adjusting seat drives the adjusting block to rotate. The adjusting block can push multiple blades to rotate. After adjusting the angle of the blade, the screw thread passes through the lower end of the limiting block and is inserted into the circular groove, so that the connecting column is fixed, thereby driving the adjusting seat to be fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a first stereogram of the present embodiment;

[0020] Figure 2 is a three-dimensional cross-sectional view of this embodiment;

[0021] Figure 3 This embodiment Figure 2 A partial enlarged view of the middle A;

[0022] Figure 4 This embodiment Figure 2 A partial enlarged view of point B in the middle;

[0023] Figure 5 It is a second stereoscopic view of this embodiment.

[0024] In the figure, 1. water wheel body; 2. blades; 3. wheel axle; 4. adjusting seat; 5. connecting column; 6. rubber strip; 7. connecting groove; 8. connecting shaft; 9. gear block; 10. limit block; 11. circular groove; 12. adjusting block; 13. positioning mechanism; 1301. mounting groove; 1302. rotating block; 1303. clamping block; 1304. clamping groove; 1305. spring groove; 1306. spring; 1307. telescopic rod; 14. positioning groove; 15. screw. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings. Example

[0026] Reference Figure 1-5The utility model discloses a water turbine seat ring guide vane assembly positioning device, comprising a water wheel body 1 and a wheel shaft 3 arranged therein, a plurality of blades 2 are arranged on the circumferential side of the wheel shaft 3, a plurality of positioning grooves 14 are opened on the circumferential side of the wheel shaft 3, and both side walls of the plurality of positioning grooves 14 are provided with positioning mechanisms 13, the plurality of blades 2 are respectively located in the plurality of positioning grooves 14, the plurality of positioning mechanisms 13 are respectively connected with the plurality of blades 2, each group of positioning mechanisms 13 comprises an installation groove 1301, a rotating block 1302, a clamping block 1303, a clamping groove 1304, a spring groove 1305 and three springs 1306, the installation groove 1301 is opened on one side of the positioning groove 14, the rotating block 1302 is rotatably connected between the inner bottom wall and the inner top wall of the installation groove 1301, the spring groove 1305 is opened on one side of the rotating block 1302, and the three springs 1306 are fixedly connected to one side wall of the spring groove 1305 , the card block 1303 is fixedly connected to one side of the three springs 1306, the card slot 1304 is opened on one side of the blade 2, the card block 1303 is slidably connected to the card slot 1304, and the three springs 1306 are provided with telescopic rods 1307, and the three telescopic rods 1307 are fixedly connected between one side of the card block 1303 and the side wall of the spring slot 1305. The telescopic rod 1307 can prevent the spring 1306 from being compressed or bending and deforming when its own elastic recovery occurs. The blade 2 is inserted downward from the notch of the positioning groove 14, and the card block 1303 is subjected to the force on one side of the blade 2, and the spring 1306 is in a compressed state. When the card block 1303 reaches the notch of the card slot 1304, the spring 1306 pushes the card block 1303 to be stuck in the card slot 1304 due to its own elastic recovery. The positioning mechanism 13 can fix the blade 2 and the wheel shaft 3 to facilitate the subsequent welding and improve the welding effect.

[0027] An adjusting seat 4 is provided at the lower end of the wheel axle 3, a connecting column 5 is rotatably provided at the upper end of the adjusting seat 4, a plurality of adjusting blocks 12 are fixedly connected to the upper end of the adjusting seat 4, and the adjusting block 12 can rotate with the adjusting seat 4 to adjust the angle of the blade 2, a connecting shaft 8 is fixedly connected to the upper end of the adjusting seat 4, and the upper end of the connecting shaft 8 movably penetrates the upper end of the connecting column 5 and is fixedly connected to a limiting block 10, a screw 15 is provided at the upper end of the limiting block 10, and the screw 15 threadably penetrates the lower end of the limiting block 10, a plurality of circular grooves 11 are provided at the upper end of the connecting column 5, and the limiting block 10, the connecting shaft 8, the circular groove 11 and the screw 15 can conveniently limit the adjusting seat 4 to prevent adjustment The seat 4 continues to rotate, and a plurality of connecting grooves 7 are opened on the circumferential side of the connecting column 5. One side wall of the plurality of connecting grooves 7 is fixedly connected with a rubber strip 6. The lower end of the adjusting seat 4 is fixedly connected with a gear block 9. The rubber strip 6 can increase the friction between the connecting column 5 and the wheel axle 3, and play a micro-fixing effect. The connecting column 5 is inserted into the wheel axle 3, and the adjusting seat 4 is driven to rotate through the gear block 9. The adjusting seat 4 drives the adjusting block 12 to rotate. The adjusting block 12 can push the plurality of blades 2 to rotate. After adjusting the angle of the blade 2, the screw 15 is threaded through the lower end of the limit block 10 and inserted into the circular groove 11, so that the connecting column 5 is fixed, thereby driving the adjusting seat 4 to be fixed.

[0028] The implementation principle of the above embodiment is: the blade 2 is inserted downward from the notch of the positioning groove 14, the block 1303 is subjected to the force on one side of the blade 2, and the spring 1306 is in a compressed state. When the block 1303 reaches the notch of the slot 1304, the spring 1306 pushes the block 1303 to be stuck in the slot 1304 due to its own elastic recovery. The positioning mechanism 13 can fix the blade 2 and the axle 3 to facilitate the subsequent welding. The adjusting seat 4 is driven to rotate by the gear block 9, and the adjusting seat 4 drives the adjusting block 12 to rotate. The adjusting block 12 can push multiple blades 2 to rotate. After adjusting the angle of the blade 2, the screw 15 is threaded through the lower end of the limit block 10 and inserted into the circular groove 11, so that the connecting column 5 is fixed, thereby driving the adjusting seat 4 to be fixed. At this time, the blade 2 and the axle 3 can be welded to improve the welding effect.

[0029] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0030] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A turbine seat ring guide vane assembly positioning device, comprising a turbine body (1) and a wheel shaft (3) arranged therein, characterized in that: A plurality of blades (2) are arranged on the circumferential side of the wheel shaft (3); a plurality of positioning grooves (14) are opened on the circumferential side of the wheel shaft (3); and both side walls of the plurality of positioning grooves (14) are provided with positioning mechanisms (13); the plurality of blades (2) are respectively located in the plurality of positioning grooves (14); the plurality of positioning mechanisms (13) are respectively connected to the plurality of blades (2); and each group of the positioning mechanisms (13) comprises a mounting groove (1301), a rotating block (1302), a clamping block (1303), a clamping groove (1304), a spring groove (1305) and three springs (1306). The mounting groove (1301) is provided on one side of the positioning groove (14); the rotating block (1302) is rotatably connected between the inner bottom wall and the inner top wall of the mounting groove (1301); the spring groove (1305) is provided on one side of the rotating block (1302); the three springs (1306) are all fixedly connected to a side wall of the spring groove (1305); the clamping block (1303) is fixedly connected to one side of the three springs (1306); the clamping groove (1304) is provided on one side of the blade (2); and the clamping block (1303) is slidably connected in the clamping groove (1304).

2. A turbine seat ring guide vane assembly and positioning device according to claim 1, characterized in that: Each of the three springs (1306) is provided with a telescopic rod (1307), and each of the three telescopic rods (1307) is fixedly connected between one side of the clamping block (1303) and a side wall of the spring slot (1305).

3. The assembly and positioning device for a water turbine seat ring and guide vanes according to claim 1, characterized in that: An adjustment seat (4) is provided at the lower end of the wheel axle (3), a connecting column (5) is rotatably provided at the upper end of the adjustment seat (4), and a plurality of adjustment blocks (12) are fixedly connected to the upper end of the adjustment seat (4).

4. A turbine seat ring guide vane assembly and positioning device according to claim 3, characterized in that: The upper end of the adjustment seat (4) is fixedly connected to a connecting shaft (8), and the upper end of the connecting shaft (8) movably passes through the upper end of the connecting column (5) and is fixedly connected to a limit block (10), the upper end of the limit block (10) is provided with a screw rod (15), and the screw rod (15) threadably passes through the lower end of the limit block (10), and the upper end of the connecting column (5) is provided with a plurality of circular grooves (11).

5. The assembly and positioning device for a water turbine seat ring and guide vanes according to claim 3, characterized in that: A plurality of connection grooves (7) are provided on the circumferential side of the connection column (5), a rubber strip (6) is fixedly connected to one side wall of each of the plurality of connection grooves (7), and a gear block (9) is fixedly connected to the lower end of the adjustment seat (4).

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