A manual forming tool for the tooth pressure strip of a generator stator

Abstract

The present invention relates to a manual forming tool used for forming a tooth pressing strip in a stator assembly component of a cross-flow unit. It belongs to the technical field of water turbines. A manual forming tool used for forming a tooth pressing strip is composed of a fixing plate, a fixed forming die, and a rotating forming die. Each part is fastened and connected by connecting parts (such as high-strength bolts, screws, etc.). In the forming process of the tooth pressing strip, the present invention uses this manual forming tool to complete the forming of the corresponding parts, and the forming dimensions meet the requirements of the drawing. The purpose of using a forming tool in the technical field of water turbines is achieved, and it has the advantages of simple use and easy adjustment, and can be widely applied to the manufacturing process of tooth pressing strips in hydro-generator units.

Description

Technical Field

[0001] The invention belongs to the technical field of hydro-generators, and particularly relates to a manual forming tool for a tooth pressing strip of a generator stator. Background Art

[0002] At present, the tooth pressing strip plays a role in pressing and fixing the stator punching sheets (silicon steel sheets) during the assembly process of the stator components. After forming, the tooth pressing strip is in a "U" shape. Generally, the forming of ordinary tooth pressing strips is achieved by using a hydraulic press with the aid of a mold. For tooth pressing strips with longer two limbs (the two sides of the "U" shape), not only the mold needs to be modified, but also the tendency of cracks to occur in the bending part during the forming process of the tooth pressing strip needs to be controlled.

[0003] To ensure the manufacturing quality of such tooth pressing strips, it is necessary to design a special manual forming tool for tooth pressing strips. Summary of the Invention

[0004] In view of the above problems, the invention provides a forming tool used for manual forming of tooth pressing strips, which has the advantages of short construction period, low processing cost and convenient use. By using this tooth pressing strip forming tool, the forming operation of the tooth pressing strip can be smoothly implemented. During the forming process of the tooth pressing strip, the corresponding parts are formed by using this manual forming tool, and the forming dimensions meet the requirements of the drawing.

[0005] The technical solution adopted by the invention to solve the above technical problems is: a manual forming tool for a tooth pressing strip of a generator stator, including a fixing plate, a fixed forming die and a rotating forming die. The fixed forming die is arranged at the upper end of the fixing plate, and the fixed forming die and the fixing plate are connected to each other by bolts. The rotating forming die is arranged on one side of the fixed forming die, and the rotating forming die and the fixed forming die are hinged to each other. The fixed forming die includes a bottom plate, a connecting plate, a lining plate and a clamping seat. A vertical die is arranged inside the connecting plate. The lining plate is fixedly connected to one side of the connecting plate, and the clamping seat is arranged on one side of the lining plate. The clamping seat and the lining plate are fixed to each other by pressing nails.

[0006] Further, the rotating forming die includes a handle, a wheel frame and a pressing wheel. The wheel frame is of a C-shaped structure. The handle is fixedly connected to one side of the wheel frame. A wheel shaft is installed inside the wheel frame, and the pressing wheel is arranged on the wheel shaft. The pressing wheel and the wheel shaft are rotatably connected to each other.

[0007] Further, a shaft sleeve is sleeved outside the wheel shaft. A bushing B is assembled at the connection between the wheel shaft and the pressing wheel. One end of the wheel shaft is fixedly connected to the wheel frame by a lock nut and a retaining ring.

[0008] Further, a hinge shaft is installed on the wheel frame, and the wheel frame is hinged to the fixed forming die through the hinge shaft.

[0009] Further, the fixing plate is arranged at the upper end of the workbench, and the fixing plate and the workbench are fixed to each other through a plurality of connecting fixing parts.

[0010] Further, a top plate is arranged at the upper end of the connecting plate, the connecting plate and the top plate are fixedly connected to each other, and a bushing A is arranged inside the top plate.

[0011] The advantages of the present invention are as follows: The present invention provides a forming tool used for manual forming of a tooth pressing strip to solve the technical problems in the forming process of the tooth pressing strip. It has the advantages of short construction period, low processing cost, and convenient use. The working principle of the present invention is: According to the shape of the tooth pressing strip, a set of tooth pressing strip manual forming tools composed of a fixing plate, a fixed forming die, a rotating forming die, etc. is determined, and the forming operation of the tooth pressing strip is carried out accordingly, realizing the pattern requirements of the tooth pressing strip and meeting the assembly needs of the stator.

[0012] Using this tooth pressing strip forming tool can smoothly implement the forming operation of the tooth pressing strip. During the forming process of the tooth pressing strip, this manual forming tool is used to complete the forming of the corresponding parts, and the forming dimensions meet the pattern requirements, achieving the purpose of using the forming tool in the field of water turbine technology, and having the advantages of simple use, easy adjustment, and wide adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic structural diagram of the tooth pressing strip part in the present invention.

[0015] Figure 2 It is a schematic structural diagram of the tooth pressing strip manual forming tool in the present invention.

[0016] Figure 3 It is a schematic top view of the tooth pressing strip manual forming tool in the present invention.

[0017] Figure 4 It is a schematic structural diagram of the fixing plate in the present invention.

[0018] Figure 5 It is a schematic structural diagram of the fixed forming die in the present invention.

[0019] Figure 6 It is a schematic structural diagram of the rotating forming die in the present invention.

[0020] Figure 7Schematic diagram of the use of the manual forming tool for the tooth pressing strip in the present invention.

[0021] Wherein:

[0022] 1. Fixed plate; 2. Fixed forming die; 3. Rotating forming die;

[0023] 4. Workbench; 5. Connecting fastener; 6. Connecting hole;

[0024] 7. Bottom plate; 8. Pressing nail; 9. Card seat;

[0025] 10. Liner plate; 11. Bush A; 12. Top plate;

[0026] 13. Vertical die; 14. Connecting plate; 15. Wheel frame;

[0027] 16. Hinge shaft; 17. Wheel shaft; 18. Pressing wheel;

[0028] 19. Bush B; 20. Handle; 21. Bush;

[0029] 22. Retaining ring; 23. Lock nut; 24. Tooth pressing strip blank Specific implementation mode

[0030] Next, the technical solution of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. The terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0032] Example 1:

[0033] Figure 1 This is a schematic structural diagram of the tooth pressing strip part in the present invention. Figure 2 This is a schematic structural diagram of the manual forming tool for the tooth pressing strip of the present invention. Figure 3 This is a top view schematic structural diagram of the manual forming tool for the tooth pressing strip of the present invention. Figure 4 This is a schematic structural diagram of the fixing plate in the present invention. Figure 5 This is a schematic structural diagram of the fixed forming die in the present invention. Figure 6 This is a schematic structural diagram of the rotating forming die in the present invention. Figure 7 This is a usage schematic diagram of the manual forming tool for the tooth pressing strip in the present invention, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 A manual forming tool used for the tooth pressing strip of a generator stator shown in the figure, including a fixing plate 1, a fixed forming die 2 and a rotating forming die 3. The fixed forming die 2 is arranged at the upper end of the fixing plate 1, and the fixed forming die 2 and the fixing plate 1 are connected to each other by bolts. The rotating forming die 3 is arranged on one side of the fixed forming die 2, and the rotating forming die 3 and the fixed forming die 2 are hinged to each other. The fixed forming die 2 includes a bottom plate 7, a connecting plate 14, a lining plate 10 and a clamping seat 9. A vertical die 13 is arranged inside the connecting plate 14. The lining plate 10 is fixedly connected to one side of the connecting plate 14. The clamping seat 9 is arranged on one side of the lining plate 10, and the clamping seat 9 and the lining plate 10 are fixed to each other by a pressing nail 8. The rotating forming die 3 includes a handle 20, a wheel frame 15 and a pressing wheel 18. The wheel frame 15 is of a C-shaped structure. The handle 20 is fixedly connected to one side of the wheel frame 15. A wheel shaft 17 is installed inside the wheel frame 15. The pressing wheel 18 is arranged on the wheel shaft 17, and the pressing wheel 18 and the wheel shaft 17 are rotatably connected to each other. A shaft sleeve 21 is sleeved outside the wheel shaft 17. One end of the wheel shaft 17 is fixedly connected to the wheel frame 15 by a lock nut 23 and a retaining ring 22. A hinge shaft 16 is installed on the wheel frame 15, and the wheel frame 15 is hinged to the fixed forming die 2 through the hinge shaft 16. The fixing plate 1 is arranged at the upper end of a workbench 4, and the fixing plate 1 and the workbench 4 are fixed to each other by a plurality of connecting and fixing parts. The upper end of the connecting plate 14 is provided with a top plate 12, and the connecting plate 14 and the top plate 12 are fixedly connected to each other. A shaft bushing A11 is arranged inside the top plate 12.

[0034] The present invention is mainly composed of a fixing plate 1, a fixed forming die 2 and a rotating forming die 3, and each part is fastened and connected by connecting parts (high-strength bolts, screws, etc.).

[0035] The present invention adopts the following technical measures:

[0036] The fixed plate 1 of the manual forming tool for the tooth pressing strip has the following characteristics: The fixed plate 1 is made of a metal material with excellent performance by mechanical processing. The positioning holes and connection holes 6 on it can adapt to the connection of tooth pressing strip forming devices of different specifications.

[0037] The fixed forming die 2 of the manual forming tool for the tooth pressing strip has the following characteristics: The bottom plate 7, pressing nails 8, clamping seats 9, lining plates 10, connecting plates 14, vertical dies 13, top plates 12, bushings A11, etc. that make up the fixed forming die 2 are made of a metal material with excellent performance by mechanical processing. Each part is connected into a whole with high-performance grade screws, and the workpiece is clamped with high-performance grade screws; the fixed forming die 2 is connected and fastened to the fixed plate 1 with high-strength bolts.

[0038] The rotating forming die 3 of the manual forming tool for the tooth pressing strip has the following characteristics: The wheel frame 15, hinge shaft 16, wheel shaft 17, pressing wheel 18, bushing B19, handle 20, shaft sleeve 21, retaining ring 22, lock nut 23, etc. that make up the rotating forming die 3 are made of a metal material with excellent performance by mechanical processing. Each part is connected into a whole with high-performance grade screws, and the hinge shaft 16 is used to connect with the fixed forming die 2.

[0039] Working mode: The present invention provides a manual forming tool for the tooth pressing strip of the generator stator:

[0040] 1. 1) The parts required for each component of the manual forming tool are processed by mechanical processing and connected according to the structural schematic diagram; the fasteners used for connection are all high-performance grade fasteners.

[0041] 2) Bushing B19 is assembled at all rotating parts to ensure flexible rotation.

[0042] 3) The manual forming tool is connected and fixed to a workbench 4 suitable for the forming operation.

[0043] (As shown in the attached Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 )

[0044] 2. Adjust the manual forming tool according to the blank of the tooth pressing strip part, that is: the blank positioning position ( Figure 5 a positioning reference is set on the clamping seat 9), the clamping allowance (adjusted with the lining plate 10 in Figure 5 ) and the contact condition between the pressing wheel 18 and the blank (adjusted with the hinge shaft 16 and shaft sleeve 21 in Figure 6 ).

[0045] 3. Place the tooth pressing strip blank 24 into the tool and press it tightly. Manually rotate the rotary forming die 3 to complete the forming of the tooth pressing strip.

[0046] 4. To better ensure the forming of the tooth pressing strip, the forming part of the blank can be heated by flame or other methods before forming.

[0047] The embodiment of the manual forming tool used for this tooth pressing strip meets the forming requirements of the tooth pressing strip of the parts of the hydrogenerator unit, and has the advantages of simple operation, low processing cost, etc., and can be widely applied to the forming process of the tooth pressing strip of the hydrogenerator unit.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A manual forming tool for the tooth pressing strip of a generator stator, comprising a fixing plate (1), a fixed forming die (2) and a rotating forming die (3). Characterized in that: The fixed forming die (2) is arranged at the upper end of the fixing plate (1), and the fixed forming die (2) and the fixing plate (1) are connected to each other by bolts. The rotating forming die (3) is arranged on one side of the fixed forming die (2), and the rotating forming die (3) and the fixed forming die (2) are hinged to each other. The fixed forming die (2) includes a bottom plate (7), a connecting plate (14), a lining plate (10) and a clamping seat (9). A vertical die (13) is arranged inside the connecting plate (14). The lining plate (10) is fixedly connected to one side of the connecting plate (14). The clamping seat (9) is arranged on one side of the lining plate (10), and the clamping seat (9) and the lining plate (10) are fixed to each other by a pressing nail (8). The rotating forming die (3) includes a handle (20), a wheel frame (15) and a pressing wheel (18). The wheel frame (15) is of a C-shaped structure. The handle (20) is fixedly connected to one side of the wheel frame (15). A wheel shaft (17) is installed inside the wheel frame (15). The pressing wheel (18) is arranged on the wheel shaft (17), and the pressing wheel (18) and the wheel shaft (17) are rotatably connected to each other. A shaft sleeve (21) is sleeved outside the wheel shaft (17). A bushing B (19) is assembled at the connection between the wheel shaft (17) and the pressing wheel (18). One end of the wheel shaft (17) is fixedly connected to the wheel frame (15) by a lock nut (23) and a retaining ring (22). A hinge shaft (16) is installed on the wheel frame (15), and the wheel frame (15) and the fixed forming die (2) are hinged to each other through the hinge shaft (16).

2. The manual forming tool for the tooth pressing strip of a generator stator according to claim 1, Characterized in that: The fixing plate (1) is arranged at the upper end of the workbench (4), and the fixing plate (1) and the workbench (4) are fixed to each other by a plurality of connecting and fixing parts.

3. The manual forming tool for the tooth pressing strip of a generator stator according to claim 1, Characterized in that: A top plate (12) is arranged at the upper end of the connecting plate (14), and the connecting plate (14) and the top plate (12) are fixedly connected to each other. A bushing A (11) is arranged inside the top plate (12).

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