Impulse water turbine bucket mutual pressure positioning assembly runner

Abstract

The utility model relates to a rotating wheel structure technical field, especially a kind of impact water turbine water bucket mutual pressure positioning assembly rotating wheel, including wheel disc and the several groups of water bucket evenly distributed in the periphery of wheel disc, along the circumferential direction of wheel disc, the connecting part of adjacent two groups of water bucket is also respectively equipped with matching step, for realizing the mutual pressure positioning of adjacent two groups of water bucket, and first group of water bucket and last group of water bucket are equipped with matching saddle seam positioning hole, the cooperation of saddle seam split half positioning pin and saddle seam positioning hole by being set along the axial direction of wheel disc, realize the detachable connection with wheel disc;Saddle seam split half positioning pin includes positioning section, fixed section and be used for the fastener of the tensioning fixed section, and positioning section and fixed section are locked axially by wedge surface cooperation between them.The assembly rotating wheel of this set adopts mutual pressure positioning, can disperse the tangential force and centrifugal force suffered by water bucket, ensure that rotating wheel is stable, safe, reliable operation.

Description

Technical Field

[0001] This utility model relates to the field of turbine runner technology, and in particular to a turbine runner for an impact turbine with mutual pressure positioning and assembly of water buckets. Background Technology

[0002] An impulse turbine runner consists of two parts: the turbine disc and the buckets. With the development of hydropower, the size of high-head, large-capacity impulse turbine runners is increasing. Currently, runner manufacturing mainly falls into three types: integral runners, combined runners, and welded runners. Currently, combined runners often employ embedded fork-type bucket structures, primarily used in model runners and power stations with low head and small capacity. The buckets and the turbine disc are connected by bolts. This type of runner has low strength, and the connection between the buckets and the turbine disc is prone to breakage.

[0003] For example, in the prior art, there is a Chinese utility model patent document with publication number CN211975262U and publication date of November 20, 2020. The technical solution disclosed in this patent document is as follows: an embedded impact turbine runner, including a wheel disk and a water bucket group evenly distributed around the wheel disk. Each water bucket in the water bucket group has a connecting block at its root. The outer circumference of the wheel disk has a slot corresponding to each connecting block. The inner diameter of the bottom of the slot is larger than the inner diameter at the outer port of the slot. The connecting block is embedded in the slot as a whole. The root of the connecting block is in contact with the wheel disk. The inner side of the wheel disk is provided with a positioning connector to radially fix the connecting block.

[0004] In the above technical solution, the slots penetrate both end faces of the wheel, making the outer circumference of the wheel gear-shaped. The positioning bolts are screwed in radially from the inside of the wheel to fix and lock the connecting block to the wheel. This type of embedded impact turbine runner is only suitable for model runners. Due to the weight of the buckets, the positioning bolts will be subjected to shear force, and long-term operation of the runner will cause the bolts to break due to shearing. Therefore, it cannot be used for large impact runners and engineering applications.

[0005] To address the aforementioned technical problems, the applicant also filed a Chinese utility model patent application with application number 2024223088637, filed on September 23, 2024. This patent proposes a bucket-locking and positioning assembly impeller for an impact turbine, comprising a impeller disc and several sets of buckets evenly distributed around the impeller disc. The outer circumference of the impeller disc has several spaced protrusions; adjacent protrusions form a locking groove along the circumferential direction of the impeller disc; each set of buckets includes a bucket body, a connecting part connected to the bucket body, and a locking block matching the locking groove; the connecting part and the protrusions are detachably connected by a connector arranged along the axial direction of the impeller disc.

[0006] To solve the above-mentioned technical problems, this utility model proposes another structure. Summary of the Invention

[0007] To solve the above-mentioned technical problems, this utility model proposes an impact turbine water bucket mutual pressure positioning assembly runner. By adopting mutual pressure positioning, the tangential force and centrifugal force on the water bucket can be dispersed, and the force of a single water bucket can be distributed to multiple water buckets, and finally distributed to the impeller and connecting parts. This improves the force on the water bucket, impeller and connecting parts, and ensures the stable, safe and reliable operation of the runner.

[0008] This utility model is achieved by adopting the following technical solution: An impeller for an impulse turbine with mutual pressure positioning assembly of water buckets includes a impeller and several sets of water buckets evenly distributed around the impeller. The outer circumference of the impeller is provided with an annular groove. Each set of water buckets includes a water bucket body and a connecting part connected to the water bucket body. The connecting parts of each set of water buckets are respectively located within the annular groove, and each set of water buckets is detachably connected to the impeller via connecting parts. Along the circumferential direction of the impeller, the connecting parts of adjacent sets of water buckets are respectively provided with matching steps for mutual pressure positioning of adjacent sets of water buckets. The first and last sets of water buckets are provided with matching saddle-seam positioning holes. A detachable connection to the impeller is achieved by the cooperation of saddle-seam positioning pins arranged along the axial direction of the impeller with the saddle-seam positioning holes. Each saddle-seam positioning pin includes a positioning section, a fixing section, and a fastener for tightening and fixing the fixing section. The positioning section and the fixing section are axially locked through a wedge-face engagement.

[0009] The fastener includes a fixing plate, a screw, and a nut; the cross-sectional area of ​​the fixing plate is larger than the cross-sectional area of ​​the fixing section; one end of the screw passes through the fixing plate and is connected to the fixing section, and the other end is connected to the nut. By tightening the nut, the fixing plate presses against the wheel disc wall axially.

[0010] The fastener also includes a washer disposed between the fixing plate and the nut.

[0011] The cross-sectional area of ​​the fixing plate is greater than the sum of the cross-sectional areas of the fixing section and the positioning section.

[0012] The connecting part is stepped and includes a first connecting part and a second connecting part connected together; the first connecting part is located on the side close to the water bucket body and its end face abuts against the outer peripheral surface of the wheel; the step is provided on the second connecting part and the second connecting part is provided in the annular groove.

[0013] The end face of the second connecting part on the side near the wheel is an arc shape that matches the annular groove.

[0014] The first connecting part is also provided with a water-throwing hole.

[0015] Each water bucket is molded as a single piece.

[0016] In each group of water buckets, there is at least one water bucket body and one connecting part.

[0017] In each set of water buckets, the number of connectors is twice the number of water bucket bodies.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model achieves circumferential, radial, and axial positioning through mutual pressure positioning, positioning at the bottom of the annular groove, and positioning of the connecting parts. Mutual pressure positioning disperses the tangential and centrifugal forces on the water buckets, distributing the force from a single water bucket to multiple water buckets, ultimately distributing it to the impeller and connecting parts. The axial force on the water buckets is borne by the annular groove. By improving the stress distribution on the water buckets, impeller, and connecting parts, the lifespan of the impeller is extended, ensuring stable, safe, and reliable operation.

[0019] Among them, the positioning section and the fixing section of the saddle-seam positioning pin are engaged by a wedge surface, which can ensure a tight fit between the saddle-seam positioning pin and the saddle-seam positioning hole, making the water bucket positioning more accurate.

[0020] 2. In this utility model, the fastener includes a screw and a nut, with a simple structure. Tightening the nut can change the wedge-face fit position between the positioning section and the fixed section. The fastener also includes a fixing plate, and the cross-sectional area of ​​the fixing plate is larger than that of the fixed section. Through the structural design of the fixing plate, a larger pressing area and bearing area can be provided, preventing damage to the wheel disc wall due to local stress concentration. It can also better position the saddle-seam positioning pin and prevent displacement when tightening the fixed section.

[0021] 3. The washers effectively prevent the nuts from loosening due to vibration during the operation of the roller, and also reduce the risk of surface crushing.

[0022] 4. This utility model further limits the cross-sectional area of ​​the fixing plate to facilitate better positioning of the saddle-seam positioning pin.

[0023] 5. The stepped connection design ensures that the end face of the first connection abuts against the outer circumference of the wheel, providing good positioning and ensuring the accuracy of the water bucket installation position.

[0024] 6. The end face of the second connecting part on the side near the wheel is arc-shaped to match the annular groove, which makes the second connecting part fit well with the annular groove, thereby effectively dispersing pressure and enhancing the stability of the structure.

[0025] 7. The water-throwing hole can be used as a lifting hole to facilitate the hoisting of the water bucket during the assembly of the water bucket and the wheel.

[0026] 8. Each water bucket is molded as a single piece, which improves the structural stability of the water bucket and makes processing more convenient.

[0027] 9. In each group of water buckets, there is at least one water bucket body and one connecting part, which makes it suitable for different usage scenarios.

[0028] 10. In each set of water buckets, the number of connecting parts is twice the number of water bucket bodies, making the connection between the water buckets and the wheel more stable. Attached Figure Description

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments, wherein: Figure 1 This is a schematic diagram of the installation of the seam-seam positioning pin in this utility model; Figure 2 This is an enlarged schematic diagram of region A in this utility model; Figure 3 This is a partial structural diagram of the present invention. Figure 1 ; Figure 4 for Figure 3 A schematic diagram of the water bucket structure involved in the process; Figure 5 for Figure 3 A schematic diagram of the planar structure of the roulette wheel involved in the text; Figure 6 This is a partial structural diagram of the present invention. Figure 2 ; Figure 7 for Figure 6 A schematic diagram of the water bucket structure involved in the process; Figure 8 for Figure 6 A schematic diagram of the planar structure of the roulette wheel involved in the text; Figure 9 This is a partial structural diagram of the present invention. Figure 3 ; Figure 10 for Figure 9 A schematic diagram of the water bucket structure involved in the process; Figure 11 for Figure 9 A schematic diagram of the planar structure of the roulette wheel involved in the text; Figure 12 This is a partial structural diagram of the present invention. Figure 4 ; Figure 13 for Figure 12 A schematic diagram of the water bucket structure involved in the process; Figure 14 for Figure 12 A schematic diagram of the planar structure of the roulette wheel involved in the text; Figure 15This is a cross-sectional structural diagram of the water hopper in this utility model; Figure 16 This is a cross-sectional structural diagram of the wheel in this utility model; Marked in the image: 1. Water bucket, 2. Parting positioning pin, 3. Connector, 4. Wheel, 5. Handle hole, 6. Splashing hole, 7. First pin hole, 8. Second connecting part, 9. Annular groove, 10. Positioning hole, 11. Second pin hole, 12. Water bucket body, 13. Step, 14. Positioning section, 15. Fixing section, 16. Fixing plate, 17. Screw, 18. Nut, 19. First connecting part, 20. Washer. Detailed Implementation

[0030] Example 1 As a basic embodiment of this utility model, the utility model includes an impact turbine bucket mutual pressure positioning assembly impeller, comprising a impeller 4 and several groups of buckets 1 evenly distributed around the impeller 4. The outer periphery of the impeller 4 is also provided with an annular groove 9. Each group of buckets 1 includes a bucket body 12 and a connecting part connected to the bucket body 12. The connecting parts of each group of buckets 1 are respectively disposed within the annular groove 9, and each group of buckets 1 is detachably connected to the impeller 4 via a connecting member 3.

[0031] Along the circumferential direction of the wheel 4, the connecting parts of adjacent sets of water buckets 1 are respectively provided with matching steps 13 for mutual pressure positioning of adjacent sets of water buckets 1. Along the circumferential direction of the wheel 4, the first set of water buckets 1 and the last set of water buckets 1 are provided with matching seam positioning holes. The wheel 4 is provided with positioning holes 10 that match the seam positioning holes. The seam split positioning pin 2, which is set along the axial direction of the wheel 4, cooperates with the seam positioning holes and positioning holes 10 to achieve a detachable connection with the wheel 4. The seam split positioning pin 2 includes a positioning section 14, a fixing section 15, and a fastener for tightening and fixing the fixing section 15. The positioning section 14 and the fixing section 15 are axially locked by a wedge surface fit.

[0032] Example 2 In a preferred embodiment of this utility model, the present utility model includes a turbine impeller for mutual pressure positioning assembly of water buckets, comprising a impeller 4 and several groups of water buckets 1 evenly distributed around the impeller 4. An annular groove 9 is also provided on the outer periphery of the impeller 4. Each group of water buckets 1 includes a water bucket body 12 and a connecting part connected to the water bucket body 12. The connecting parts of each group of water buckets 1 are respectively disposed within the annular groove 9, and each group of water buckets 1 is detachably connected to the impeller 4 via a connecting member 3.

[0033] Along the circumferential direction of the wheel 4, the connecting parts of two adjacent sets of water buckets 1 are respectively provided with matching steps 13, which are used to achieve mutual pressure positioning of the two adjacent sets of water buckets 1. Along the circumferential direction of the wheel 4, the first set of water buckets 1 and the last set of water buckets 1 are provided with matching seam positioning holes. The wheel 4 is provided with positioning holes 10 that match the seam positioning holes. The seam split positioning pins 2 provided along the axial direction of the wheel 4 cooperate with the seam positioning holes and positioning holes 10 to achieve a detachable connection with the wheel 4.

[0034] The locating pin 2, which spans the seam, includes a locating section 14, a fixing section 15, and a fastener for tightening and fixing the fixing section 15. The locating section 14 and the fixing section 15 are axially locked together through a wedge-shaped fit. Specifically, the fastener includes a fixing plate 16, a screw 17, and a nut 18. The cross-sectional area of ​​the fixing plate 16 is larger than that of the fixing section 15. One end of the screw 17 passes through the fixing plate 16 and connects to the fixing section 15, while the other end is connected to the nut 18. By tightening the nut 18, the fixing plate 16 is axially pressed against the wall of the wheel disc 4.

[0035] Example 3 As another preferred embodiment of this utility model, this utility model includes an impeller for a water turbine with mutual pressure positioning assembly, as shown in the attached specification. Figures 3-5 and instruction manual Figures 15-16 The system includes a wheel 4 and several sets of water buckets 1 evenly distributed around the wheel 4. The outer periphery of the wheel 4 is also provided with an annular groove 9. The wheel 4 is also provided with a engagement hole 5 for engaging with the main shaft. Each set of water buckets 1 is integrally formed, including a water bucket body 12 and a connecting part connected to the water bucket body 12.

[0036] Specifically, the connecting part of each water bucket 1 is stepped, including a first connecting part 19 and a second connecting part 8 connected together. The first connecting part 19 is located on the side near the water bucket body 12, and its end face abuts against the outer peripheral surface of the wheel 4. The first connecting part 19 is also provided with a water-throwing hole 6. The water-throwing hole 6 can be used as a lifting hole for hoisting the water bucket 1 when assembling it with the wheel 4. The second connecting part 8 is set in an annular groove 9, and the end face of the second connecting part 8 on the side near the wheel 4 is an arc shape that matches the annular groove 9. Each water bucket 1 is detachably connected to the wheel 4 through a connecting piece 3. Specifically, the second connecting part 8 is provided with two sets of first pin holes 7, and the wheel 4 is provided with second pin holes 11 that match the first pin holes 7. The connecting piece 3 is a positioning pin, and the connection between the water bucket 1 and the wheel 4 is realized through the mutual cooperation of the positioning pin with the first pin holes 7 and the second pin holes 11.

[0037] Along the circumferential direction of the wheel 4, the second connecting part 8 of the two adjacent sets of water buckets 1 is also provided with matching steps 13, which are used to realize the mutual pressure positioning of the two adjacent sets of water buckets 1. Specifically, in this embodiment, the water buckets are divided into three types. Water buckets 1# and n# are two special water buckets, which are not shown in the attached drawings. 2#~(n-1)# are the same. When installing the water buckets, they need to be installed sequentially from water bucket 1# to water bucket n# along the circumferential direction of the wheel 4. After the last water bucket n# is installed, since the first set of water buckets, i.e., water bucket 1#, and the last set of water buckets, i.e., water bucket n#, are provided with matching seam positioning holes, the wheel 4 is provided with positioning holes 10 that match the seam positioning holes, and water buckets 1# and n# are restricted and positioned by seam split positioning pins 2. By the cooperation of the seam split positioning pins 2 set along the axial direction of the wheel 4 with the seam positioning holes and positioning holes 10, a detachable connection with the wheel 4 is realized, and the wheel is assembled into a complete wheel. During disassembly, first remove the locating pin 2 and the n# water bucket, and then disassemble in reverse order.

[0038] Refer to the instruction manual appendix Figure 1 Included with instruction manual Figure 2 The locating pin 2, which is a saddle-seam positioning pin, includes a positioning section 14, a fixing section 15, and fasteners for tightening and fixing the fixing section 15. The positioning section 14 and the fixing section 15 are axially locked together via a wedge-shaped fit. Specifically, the fasteners include a fixing plate 16, a screw 17, a washer 20, and a nut 18. The cross-sectional area of ​​the fixing plate 16 is greater than the sum of the cross-sectional areas of the fixing section 15 and the positioning section 14. One end of the screw 17 passes through the fixing plate 16 and connects to the fixing section 15, while the other end passes through the washer 20 and connects to the nut 18. The washer 20 is positioned between the fixing plate 16 and the nut 18. By tightening the nut 18, the fixing plate 16 is axially pressed against the wall of the wheel disc 4, thus tightening and fixing the fixing section 15, effectively securing the two special water buckets #1 and #n. After fixing, the fixing plate 16 and the washer 20 are spot-welded to prevent loosening.

[0039] Example 4 As another preferred embodiment of this utility model, this utility model includes an impeller for a water turbine with mutual pressure positioning assembly, as shown in the attached specification. Figures 6-8 and instruction manual Figures 15-16 The system includes a wheel 4 and several sets of water buckets 1 evenly distributed around the wheel 4. The outer periphery of the wheel 4 is also provided with an annular groove 9. The wheel 4 is also provided with a engagement hole 5 for engaging with the main shaft. Each set of water buckets 1 is integrally formed and includes two water bucket bodies 12 and a connecting part that connects to the two water bucket bodies 12.

[0040] Specifically, the connecting part of each water bucket 1 is stepped, including a first connecting part 19 and a second connecting part 8 connected together. The first connecting part 19 is located on the side near the water bucket body 12, and its end face abuts against the outer peripheral surface of the wheel 4. The first connecting part 19 is also provided with a water-throwing hole 6. The water-throwing hole 6 can be used as a lifting hole for hoisting the water bucket 1 when assembling it with the wheel 4. The second connecting part 8 is set in an annular groove 9, and the end face of the second connecting part 8 on the side near the wheel 4 is an arc shape that matches the annular groove 9. Each water bucket 1 is detachably connected to the wheel 4 through a connecting piece 3. Specifically, the second connecting part 8 is provided with four sets of first pin holes 7, the wheel 4 is provided with second pin holes 11 that match the first pin holes 7, and the connecting piece 3 is a positioning pin. The connection between the water bucket 1 and the wheel 4 is realized through the mutual cooperation of the positioning pin with the first pin holes 7 and the second pin holes 11.

[0041] Along the circumferential direction of the wheel 4, the second connecting part 8 of the two adjacent sets of water buckets 1 is also provided with matching steps 13, which are used to realize the mutual pressure positioning of the two adjacent sets of water buckets 1. Specifically, in this embodiment, the water buckets are divided into three types. Water buckets 1# and n# are two special water buckets, which are not shown in the attached drawings. 2#~(n-1)# are the same. When installing the water buckets, they need to be installed sequentially from water bucket 1# to water bucket n# along the circumferential direction of the wheel 4. After the last water bucket n# is installed, since the first set of water buckets, i.e., water bucket 1#, and the last set of water buckets, i.e., water bucket n#, are provided with matching seam positioning holes, the wheel 4 is provided with positioning holes 10 that match the seam positioning holes, and water buckets 1# and n# are restricted and positioned by seam split positioning pins 2. By the cooperation of the seam split positioning pins 2 set along the axial direction of the wheel 4 with the seam positioning holes and positioning holes 10, a detachable connection with the wheel 4 is realized, and the wheel is assembled into a complete wheel. During disassembly, first remove the locating pin 2 and the n# water bucket, and then disassemble in reverse order.

[0042] Refer to the instruction manual appendix Figure 1 Included with instruction manual Figure 2The locating pin 2, which is a saddle-seam positioning pin, includes a positioning section 14, a fixing section 15, and fasteners for tightening and fixing the fixing section 15. The positioning section 14 and the fixing section 15 are axially locked together via a wedge-shaped fit. Specifically, the fasteners include a fixing plate 16, a screw 17, a washer 20, and a nut 18. The cross-sectional area of ​​the fixing plate 16 is greater than the sum of the cross-sectional areas of the fixing section 15 and the positioning section 14. One end of the screw 17 passes through the fixing plate 16 and connects to the fixing section 15, while the other end passes through the washer 20 and connects to the nut 18. The washer 20 is positioned between the fixing plate 16 and the nut 18. By tightening the nut 18, the fixing plate 16 presses axially against the wall of the wheel disc 4, tightening and fixing the fixing section 15, thereby effectively fixing the two special water buckets #1 and #n. After fixing, the fixing plate 16 and the washer 20 are spot-welded to prevent loosening.

[0043] Example 5 As another preferred embodiment of this utility model, this utility model includes an impeller for a water turbine with mutual pressure positioning assembly, as shown in the attached specification. Figures 9-11 and instruction manual Figures 15-16 Its structure is roughly the same as the wheel structure in Embodiment 3. The difference lies in the position and direction of the step 13 on the water bucket 1, so that it can be selected according to the shape of the water bucket 1 and the actual situation during actual use.

[0044] Example 6 As another preferred embodiment of this utility model, this utility model includes an impeller for a water turbine with mutual pressure positioning assembly, as shown in the attached specification. Figures 12-14 and instruction manual Figures 15-16 Its structure is roughly the same as the wheel structure in Embodiment 4. The difference lies in the position and direction of the step 13 on the water bucket 1, so that it can be selected according to the shape of the water bucket 1 and the actual situation during actual use.

[0045] In summary, any other corresponding modifications made by those skilled in the art based on the technical solution and concept of this utility model without creative mental effort after reading this utility model document are all within the scope of protection of this utility model.

Claims

1. A turbine runner for an impulse turbine, comprising a turbine disc (4) and several sets of buckets (1) evenly distributed around the turbine disc (4), wherein an annular groove (9) is provided on the outer periphery of the turbine disc (4); characterized in that: Each set of water buckets (1) includes a water bucket body (12) and a connecting part connected to the water bucket body (12); the connecting parts of each set of water buckets (1) are respectively set in an annular groove (9), and each set of water buckets (1) is detachably connected to the wheel (4) through a connector (3); along the circumferential direction of the wheel (4), the connecting parts of two adjacent sets of water buckets (1) are also provided with matching steps (13) to realize the mutual pressure positioning of the two adjacent sets of water buckets (1), and the first set of water buckets (1) and the last set of water buckets (1) are provided with matching seam positioning holes. By cooperating with the seam positioning holes, the seam split positioning pin (2) set along the axial direction of the wheel (4) can be detachably connected to the wheel (4). The seam split positioning pin (2) includes a positioning section (14), a fixing section (15) and a fastener for tightening and fixing the fixing section (15). The positioning section (14) and the fixing section (15) are axially locked by wedge surface cooperation.

2. The impeller for a turbine with mutual pressure positioning assembly of water buckets according to claim 1, characterized in that: The fastener includes a fixing plate (16), a screw (17), and a nut (18); the cross-sectional area of ​​the fixing plate (16) is larger than the cross-sectional area of ​​the fixing section (15); one end of the screw (17) passes through the fixing plate (16) and is connected to the fixing section (15), and the other end is connected to the nut (18). By tightening the nut (18), the fixing plate (16) presses the wall of the wheel disc (4) axially.

3. The impeller for mutual pressure positioning assembly of the buckets of an impulse turbine according to claim 2, characterized in that: The fastener also includes a washer (20) disposed between the fixing plate (16) and the nut (18).

4. The impeller for mutual pressure positioning assembly of the buckets of an impulse turbine according to claim 2 or 3, characterized in that: The cross-sectional area of ​​the fixing plate (16) is greater than the sum of the cross-sectional areas of the fixing section (15) and the positioning section (14).

5. The impeller for mutual pressure positioning assembly of the buckets of an impulse turbine according to claim 1 or 3, characterized in that: The connecting part is stepped and includes a first connecting part (19) and a second connecting part (8) connected together; the first connecting part (19) is located on the side close to the water bucket body (12) and its end face abuts against the outer peripheral surface of the wheel (4); the step (13) is provided on the second connecting part (8) and the second connecting part (8) is provided in the annular groove (9).

6. The impeller for mutual pressure positioning assembly of an impulse turbine bucket as described in claim 5, characterized in that: The end face of the second connecting part (8) on the side near the wheel (4) is an arc shape that matches the annular groove (9).

7. The impeller for mutual pressure positioning assembly of an impulse turbine bucket as described in claim 5, characterized in that: The first connecting part (19) is also provided with a water-throwing hole (6).

8. The impeller for mutual pressure positioning assembly of an impulse turbine bucket as described in claim 5, characterized in that: Each water bucket (1) is formed as a single piece.

9. The impeller for mutual pressure positioning assembly of the buckets of an impulse turbine according to claim 5, characterized in that: In each group of water buckets (1), the number of water bucket bodies (12) is at least one, and the number of connecting parts is one.

10. The impeller for a turbine with mutual pressure positioning assembly of water buckets according to claim 9, characterized in that: In each water bucket (1), the number of connectors (3) is twice the number of water bucket bodies (12).

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