A water turbine blade repair tool

Abstract

The utility model discloses a water turbine blade repair tool, including a base, an impeller arranged on the top of the base, a positioning structure arranged on the top of the base, the positioning structure including connecting blocks fixedly connected to both sides of the top of the base, a clamping plate movably connected to the front of the connecting block through a pin shaft, and the side of the clamping plate away from the connecting block extends to the inside of the impeller. The utility model extrude the extension plate through the transmission structure, the extension plate is squeezed and drives the clamping plate to swing with the pin shaft on the surface of the connecting block as the axis, when the outer side of the clamping plate contacts the inner surface of the impeller, the effect of squeezing and fixing the impeller is achieved, and the extrusion damage to the blades on the surface of the impeller is reduced. The utility model can improve the structural functionality of the existing water turbine blade fixing tool, replace the method of squeezing and fixing the impeller through a large number of external squeezing components, prevent the blades on the surface of the impeller from being deformed due to dry collision during the squeezing process, and ensure the normal transmission effect of the impeller.

Description

Technical Field

[0001] The utility model relates to the technical field of water turbine blade repair, in particular to a water turbine blade repair tool. Background Art

[0002] Turbine blades are an important part of a turbine and their function is to convert water energy into mechanical energy. Here are some detailed information about turbine blades: The role of blades: When water flows through the blades, the water flow exerts force on the blades, causing the blades to rotate and drive the shaft to rotate, ultimately driving generators and other equipment to generate electricity or perform other tasks. The accuracy of the blade profile is an important factor affecting the efficiency, output, cavitation and service life of the turbine, and is an important indicator of the manufacturing level of the turbine.

[0003] For example, the patent number disclosed by the China Patent Network is: 201921891526.8, and the patent name is: A cavitation-resistant turbine blade processing device, including a support frame, a cylinder is installed inside the support frame, and a sink is provided at the top of the support frame, the output end of the cylinder passes through the inside of the sink and is connected to a connecting rod, and the top of the connecting rod is sleeved with a connecting disk, a bearing disk is installed inside the sink, and the top of the bearing disk is connected to a support plate, a slide groove is provided inside the support plate, and an angle line is provided at the top of the support plate. The utility model is provided with a top block, a connecting rod, a connecting disk, a connecting rod and a cylinder, and the output end of the control air pipe is extended to drive four groups of connecting rods and top blocks to expand, so that the four groups of top blocks fit the inner wall of the connecting shaft, so that the connecting shaft is fixed, and when the blade needs to be welded to the outside of the connecting shaft, the connecting shaft is not easy to shake, thereby reducing the probability of blade welding damage.

[0004] However, the structure of the existing turbine blade fixing tooling is relatively simple, and the impeller is mainly fixed by extrusion through a large number of external extrusion components. The blades on the impeller surface are easily deformed due to dry collision during the extrusion process, which affects the normal transmission effect of the impeller.

[0005] Therefore, it is necessary to redesign the turbine blade repair tooling. Utility Model Content

[0006] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a turbine blade repair tool, which has the advantage of improving the fixing effect, and solves the problem that the structure of the existing turbine blade fixing tool is relatively simple, and the impeller is mainly fixed by extrusion through a large number of external extrusion components. The blades on the impeller surface are easily deformed due to dry collision during the extrusion process, resulting in the normal transmission effect of the impeller being affected.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a turbine blade repair tool, comprising a base;

[0008] an impeller disposed on the top of the base;

[0009] A positioning structure is provided on the top of the base, and the positioning structure includes connecting blocks fixedly connected to both sides of the top of the base, and a clamping plate is movably connected to the front of the connecting block through a pin shaft, and the side of the clamping plate away from the connecting block extends to the inside of the impeller, and the outer surface of the clamping plate contacts the inner wall of the clamping plate, and the side of the clamping plate close to the connecting block is fixedly connected to an extension plate, and a transmission structure is provided on the top of the base, and the transmission structure can squeeze the extension plate.

[0010] As a preferred embodiment of the utility model, the transmission structure includes a connecting frame fixedly connected to the top of the base, the interior of the connecting frame is movably connected with a bidirectional screw through a bearing, the left and right sides of the surface of the bidirectional screw are threadedly connected with screw sleeves, the back of the screw sleeve is fixedly connected with a pressure rod, and the pressure rod extends from the side away from the screw sleeve to the outside of the extension plate.

[0011] As a preferred embodiment of the utility model, a guide bar is fixedly connected to the interior of the connecting frame, and the guide bar extends to the interior of the screw sleeve from a side away from the connecting frame, and the screw sleeve is slidably connected to the guide bar.

[0012] As a preferred embodiment of the utility model, a rotating wheel is arranged on the left side of the connecting frame, and the left end of the bidirectional screw passes through the connecting frame and is fixedly connected to the right side of the rotating wheel.

[0013] As a preferred embodiment of the utility model, a rubber sleeve is provided on the surface of the pressure rod, and an outer surface of the rubber sleeve is in contact with a surface of the extension plate.

[0014] As a preferred embodiment of the present invention, the four corners of the top of the base are fixedly connected with support rods, the top ends of the support rods are fixedly connected with support plates, the impeller is arranged on the top of the support plates, and the support plates are sleeved on the surface of the clamping plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model extrude the extension plate through the transmission structure. The extension plate is squeezed and drives the clamping plate to swing with the pin shaft on the surface of the connecting block as the axis. When the outer side of the clamping plate contacts the inner surface of the impeller, the impeller is squeezed and fixed, reducing the extrusion damage to the blades on the surface of the impeller. The utility model can improve the structural functionality of the existing turbine blade fixing tooling, replace the method of squeezing and fixing the impeller through a large number of external extrusion components, prevent the blades on the surface of the impeller from being deformed due to dry collision during the extrusion process, and ensure the normal transmission effect of the impeller.

[0017] 2. The utility model can control the swing of the two clamping plates by arranging the bidirectional screw, the screw sleeve and the pressure rod, thereby improving the extrusion strength of the clamping plates and preventing the clamping plates from loosening.

[0018] 3. The utility model can limit the screw sleeve by setting the guide strip, so as to avoid the screw sleeve from tilting during the movement.

[0019] 4. The utility model can facilitate users to rotate the bidirectional screw by providing a rotating wheel, and can increase the contact area between the bidirectional screw and the hand.

[0020] 5. The utility model can protect the pressure rod by providing a rubber sleeve, thereby reducing the wear and tear of the pressure rod and the extension plate during contact and friction.

[0021] 6. The utility model can support the impeller by arranging the support rod and the support plate to prevent the impeller from tilting. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the local structure of the utility model;

[0024] Figure 3 It is a schematic diagram of the partial structure separation of the utility model.

[0025] In the figure: 1. base; 2. impeller; 3. positioning structure; 4. connecting block; 5. clamping plate; 6. extension plate; 7. transmission structure; 8. connecting frame; 9. bidirectional screw; 10. screw sleeve; 11. pressure rod; 12. guide strip; 13. impeller; 14. rubber sleeve; 15. support rod; 16. support plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figures 1 to 3 As shown, the utility model provides a turbine blade repair tool, comprising a base 1;

[0028] An impeller 2 is arranged on the top of the base 1;

[0029] A positioning structure 3 is provided at the top of the base 1, and the positioning structure 3 includes connecting blocks 4 fixedly connected to both sides of the top of the base 1. A clamping plate 5 is movably connected to the front of the connecting block 4 through a pin shaft. The side of the clamping plate 5 away from the connecting block 4 extends to the inside of the impeller 2. The outer surface of the clamping plate 5 contacts the inner wall of the clamping plate 5. An extension plate 6 is fixedly connected to the side of the clamping plate 5 close to the connecting block 4. A transmission structure 7 is provided on the top of the base 1, and the transmission structure 7 can squeeze the extension plate 6.

[0030] refer to Figure 3 The transmission structure 7 includes a connecting frame 8 fixedly connected to the top of the base 1, and a bidirectional screw 9 is movably connected to the inside of the connecting frame 8 through a bearing. The left and right sides of the surface of the bidirectional screw 9 are threadedly connected with a screw sleeve 10, and the back of the screw sleeve 10 is fixedly connected with a pressure rod 11, which extends from the side away from the screw sleeve 10 to the outside of the extension plate 6.

[0031] As a technical optimization solution of the utility model, by providing a bidirectional screw 9, a screw sleeve 10 and a pressure rod 11, the swing of the two clamping plates 5 can be controlled, the extrusion strength of the clamping plates 5 can be improved, and the clamping plates 5 can be prevented from loosening.

[0032] refer to Figure 2 A guide bar 12 is fixedly connected to the interior of the connecting frame 8 , and the guide bar 12 extends to the interior of the screw sleeve 10 away from the side of the connecting frame 8 , and the screw sleeve 10 is slidably connected to the guide bar 12 .

[0033] As a technical optimization solution of the present invention, by providing the guide strip 12, the screw sleeve 10 can be limited to avoid the screw sleeve 10 from tilting during the movement.

[0034] refer to Figure 2 A rotating wheel 13 is provided on the left side of the connecting frame 8 , and the left end of the bidirectional screw 9 passes through the connecting frame 8 and is fixedly connected to the right side of the rotating wheel 13 .

[0035] As a technical optimization solution of the present invention, by providing the rotating wheel 13, it is convenient for the user to rotate the bidirectional screw 9, and the contact area between the bidirectional screw 9 and the hand can be increased.

[0036] refer to Figure 3 A rubber sleeve 14 is sleeved on the surface of the pressure rod 11 , and an outer surface of the rubber sleeve 14 contacts the surface of the extension plate 6 .

[0037] As a technical optimization solution of the present invention, by providing the rubber sleeve 14, the pressure rod 11 can be protected and the wear of the pressure rod 11 and the extension plate 6 during contact and friction can be reduced.

[0038] refer to Figure 3The four corners of the top of the base 1 are fixedly connected with support rods 15, the top of the support rods 15 is fixedly connected with a support plate 16, the impeller 2 is arranged on the top of the support plate 16, and the support plate 16 is sleeved on the surface of the clamping plate 5.

[0039] As a technical optimization solution of the present invention, by providing a support rod 15 and a support plate 16, the impeller 2 can be supported to prevent the impeller 2 from tilting.

[0040] The working principle and use process of the utility model are as follows: when in use, first move the impeller 2 to the top of the support plate 16, and then rotate the rotating wheel 13. The rotating wheel 13 drives the bidirectional screw 9 to rotate. The bidirectional screw 9 uses the thread to push the screw sleeve 10 to move toward each other. During the movement of the screw sleeve 10, the pressure rod 11 is used to squeeze the extension plate 6. The extension plate 6 is squeezed and drives the clamping plate 5 to swing with the pin shaft on the surface of the connecting block 4 as the axis. When the outer side of the clamping plate 5 contacts the inner surface of the impeller 2, the impeller 2 is squeezed and fixed, thereby reducing the extrusion damage to the blades on the surface of the impeller 2.

[0041] To sum up: the turbine blade repair tooling extrude the extension plate 6 through the transmission structure 7, the extension plate 6 is squeezed and drives the clamping plate 5 to swing with the pin shaft on the surface of the connecting block 4 as the axis, when the outer side of the clamping plate 5 contacts the inner surface of the impeller 2, the impeller 2 is squeezed and fixed, and the extrusion damage to the blades on the surface of the impeller 2 is reduced. The utility model can improve the structural functionality of the existing turbine blade fixing tooling, replace the method of squeezing and fixing the impeller 2 through a large number of external extrusion components, prevent the blades on the surface of the impeller 2 from being deformed due to dry collision during the extrusion process, and ensure the normal transmission effect of the impeller 2.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A turbine blade repair tool, comprising a base (1); An impeller (2) disposed on the top of the base (1); Features: A positioning structure (3) is provided at the top of the base (1), and the positioning structure (3) comprises connecting blocks (4) fixedly connected to both sides of the top of the base (1); a front side of the connecting block (4) is movably connected to a clamping plate (5) via a pin shaft; a side of the clamping plate (5) away from the connecting block (4) extends to the inside of the impeller (2); an outer surface of the clamping plate (5) contacts an inner wall of the clamping plate (5); a side of the clamping plate (5) close to the connecting block (4) is fixedly connected to an extension plate (6); and a transmission structure (7) is provided at the top of the base (1); the transmission structure (7) is capable of squeezing the extension plate (6).

2. The water turbine blade repair tool according to claim 1, characterized in that: The transmission structure (7) comprises a connection frame (8) fixedly connected to the top of the base (1); a bidirectional screw (9) is movably connected to the interior of the connection frame (8) via a bearing; a screw sleeve (10) is threadedly connected to the left and right sides of the surface of the bidirectional screw (9); a pressure rod (11) is fixedly connected to the back of the screw sleeve (10); and the pressure rod (11) extends from a side away from the screw sleeve (10) to the outside of the extension plate (6).

3. The water turbine blade repair tool according to claim 2, characterized in that: A guide bar (12) is fixedly connected to the interior of the connection frame (8), and the guide bar (12) extends from a side away from the connection frame (8) to the interior of the screw sleeve (10), and the screw sleeve (10) is slidably connected to the guide bar (12).

4. The water turbine blade repair tool according to claim 2, characterized in that: A rotating wheel (13) is arranged on the left side of the connecting frame (8), and the left end of the bidirectional screw (9) passes through the connecting frame (8) and is fixedly connected to the right side of the rotating wheel (13).

5. The water turbine blade repair tool according to claim 2, characterized in that: The surface of the pressure rod (11) is covered with a rubber sleeve (14), and the outer surface of the rubber sleeve (14) is in contact with the surface of the extension plate (6).

6. The water turbine blade repair tool according to claim 1, characterized in that: The four corners of the top of the base (1) are fixedly connected to support rods (15), the top of the support rods (15) is fixedly connected to a support plate (16), the impeller (2) is arranged on the top of the support plate (16), and the support plate (16) is sleeved on the surface of the clamping plate (5).

Images