Generator stator dovetail positioning tool

Abstract

The utility model discloses a generator stator dove tail muscle positioning frock, include: stator base, the inner wall vertical arrangement has a plurality of dove tail muscle on it, the equal division board is equipped with two dove tail groove with the cooperation of dove tail muscle, and two adjacent dove tail muscles are limited through the equal division board, so that the even distribution of the dove tail muscle is in the inner wall of stator base, support spare, including support cylinder and the support rod of screw connection in support cylinder both ends, and two adjacent dove tail muscles are supported through support spare, and the support rod is in the corresponding dove tail muscle side groove and abuts, and support spare and equal division board one to one correspond. The scheme guarantees the generator stator core inner hole roundness, and the installation is simple, and the equal division board and support spare cooperate each other and carry out the positioning and clamping and improve the assembly efficiency, improve the precision of the dove tail muscle in the axial direction and vertical direction.

Description

Technical Field

[0001] This utility model relates to the field of generator stator positioning technology, and in particular to a generator stator pigeon tail rib positioning tool. Background Technology

[0002] In the stator installation process of existing generators, the lamination of the stator core is a key aspect, and the installation of the stator stator reinforcement bars is of paramount importance. Only with accurate positioning of the stator stator stator reinforcement bars can the inner hole roundness of the stator core be maximized. The roundness of the generator stator core inner hole directly affects the air gap uniformity, magnetic circuit conduction efficiency, and generator operating performance. Current generator stator stator stator reinforcement methods involve calculating the average installation chord length of adjacent stator ...

[0003] For example, Chinese Patent Publication No. CN104201836A, published on December 10, 2014, entitled "A Method for Installing Pigeon Tail Ribs in the Stator Core of a Variable Frequency Rolling Mill Motor", includes the following steps: Step 1, selecting the average value of the installation chord length of adjacent pigeon tail ribs; Step 2, positioning the first pigeon tail rib; Step 3, making a simulated stamping with a complete pigeon tail groove; Step 4, installing the remaining pigeon tail ribs; Step 5, welding the pigeon tail ribs.

[0004] The drawback of existing patents is that existing generator stator pigeon tail bars are located by calculating the average value of the installation chord length of adjacent pigeon tail bars, and then locating adjacent pigeon tail bars sequentially based on the average value of the installation chord length of the pigeon tail bars. This requires continuous measurement and calibration, making the operation complicated and the positioning accuracy low. Utility Model Content

[0005] The purpose of this invention is to improve upon the existing generator stator pigeon tail bar positioning method, which involves calculating the average value of the installation chord length of adjacent pigeon tail bars and sequentially measuring and positioning them. This method is characterized by cumbersome operation and low positioning accuracy. The invention provides a generator stator pigeon tail bar positioning fixture that improves positioning accuracy and is easy to operate.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A generator stator dovetail rib positioning fixture includes: a stator base with a plurality of dovetail ribs vertically arranged on its inner wall; a dividing plate with two dovetail grooves that mate with the dovetail ribs, wherein adjacent dovetail ribs are limited by the dividing plate to ensure that the dovetail ribs are evenly distributed circumferentially on the inner wall of the stator base; and a support member including a support cylinder and support rods threaded to both ends of the support cylinder, wherein adjacent dovetail ribs are supported by the support member, and the support rods abut against the corresponding dovetail rib side grooves, and the support member corresponds one-to-one with the dividing plate. The generator stator dovetail rib positioning fixture described in this technical solution uses the dividing plate to equally divide and position the vertically arranged dovetail ribs on the inner side of the stator base, ensuring that the dovetail ribs are evenly distributed circumferentially on the inner wall of the stator base. The two dovetail grooves on the dividing plate mate with the dovetail ribs, and the size and spacing of the two dovetail grooves on the dividing plate are completely consistent with the size and spacing of the dovetail grooves on the generator stator core. Adjacent pigeontail ribs are positioned and limited sequentially by dividing the inner circumference of the stator frame using a dividing plate. After the dividing plate is used to define and limit the ribs, support members are used to support and tighten each pigeontail rib. The support members are positioned between adjacent pigeontail ribs, close to and corresponding to the dividing plate. The support members support the circumferentially distributed pigeontail ribs sequentially on the inner circumference of the stator frame, making the pigeontail ribs more stable and the dimensions between them more precise, preventing deviation. After the pigeontail ribs are evenly distributed in a circle within the stator frame, support blocks are welded onto the pigeontail ribs, and then the support blocks are welded to the stator frame, completing the positioning and welding of the pigeontail ribs. The support members and dividing plate are then removed sequentially, and the stator core is installed. This ensures the roundness of the generator stator core's inner hole, simplifies installation, and improves assembly efficiency through the cooperation of the dividing plate and support members for positioning and clamping.

[0007] Preferably, the end of the support rod is provided with a support surface that mates with the inner wall of the side groove of the pigeon tail tendon. Two adjacent support members clamp the side grooves of the pigeon tail tendon, and the support surface at the end of the support rod mates with the inner wall of the side groove of the pigeon tail tendon, thus better clamping and positioning the pigeon tail tendon. The support rod and the side groove of the pigeon tail tendon are in surface contact, reducing damage between the support rod and the pigeon tail tendon.

[0008] Preferably, the support rods are symmetrically arranged at both ends of the support cylinder, and the threads on the support rods at both ends of the support cylinder have opposite directions. The support rods are symmetrically arranged at both ends of the support cylinder to balance the supporting forces at both ends of the support member. The support member is arranged in parallel, and the dividing plate is arranged in parallel. After the dividing plate divides and positions the pigeon tail ribs equally, the support member is placed between two adjacent pigeon tail ribs. The support surface on the support rod of the support member extends into the side groove of the pigeon tail rib. The support surface circumferentially limits the rotation of the support rod. By rotating the support cylinder, the support rods at both ends of the support cylinder extend outward simultaneously and abut against the side groove of the pigeon tail rib. The support member abuts against the pigeon tail ribs in sequence on the circumference.

[0009] Preferably, the support cylinder includes a cylindrical tube and threaded tubes fixedly disposed at both ends of the cylindrical tube. The support rod is inserted into the threaded tube and threadedly connected to the threaded tube. The threaded tube is welded to both ends of the cylindrical tube, and the support rod is inserted into the threaded tube and threadedly connected to the threaded tube. The support component has a simple structure and low equipment cost.

[0010] Preferably, the support cylinder is provided with an adjustment rod hole for inserting an adjustment rod. When the support cylinder needs to be adjusted, the adjustment rod is inserted into the adjustment rod hole and the adjustment rod is turned. The support surface on the support rod of the support member extends into the side groove of the pigeon tail rib. The support surface circumferentially limits the rotation of the support rod. By rotating the support cylinder, the support rods at both ends of the support cylinder extend outward simultaneously and abut against the side groove of the pigeon tail rib.

[0011] Preferably, the two dovetail grooves on the dividing plate are symmetrically arranged at both ends of the dividing plate to ensure that the two dovetail grooves on the dividing plate are subjected to uniform force.

[0012] Preferably, each pigeon tail rib is positioned relative to its adjacent counterpart by two equally spaced plates, and is supported by a support member. The support member corresponds one-to-one with the equally spaced plates, and is positioned close to the equally spaced plates.

[0013] Preferably, the circumferentially evenly distributed dovetail reinforcement has at least two layers of dividing plates, with the two dividing plates positioned at the upper and lower parts of the dovetail reinforcement, respectively. Arranging at least two layers of dividing plates on the circumferentially evenly distributed dovetail reinforcement improves the vertical division accuracy of the dovetail reinforcement. When the dovetail reinforcement is long, three layers of dividing plates can also be provided, positioned at the lower, middle, and upper parts of the circumferentially evenly distributed dovetail reinforcement, respectively, to prevent vertical displacement of the dovetail reinforcement and further improve the axial and vertical accuracy of the dovetail reinforcement.

[0014] Preferably, the evenly distributed dovetail reinforcement bars are provided with at least two layers of support members for adjacent dovetail reinforcement bars, with the two layers of support members respectively positioned at the upper and lower parts of the dovetail reinforcement bars. At least two layers of dividing plates are arranged on the evenly distributed dovetail reinforcement bars to improve the vertical division accuracy of the dovetail reinforcement bars. Simultaneously, at least two layers of support members are provided to support adjacent dovetail reinforcement bars, with the support members close to the corresponding dividing plates. When the length of the dovetail reinforcement bars is long, three layers of support members can also be provided, respectively positioned at the lower, middle, and upper parts of the evenly distributed dovetail reinforcement bars to prevent vertical displacement of the dovetail reinforcement bars and further improve the axial and vertical accuracy of the dovetail reinforcement bars.

[0015] Preferably, a rubber pad is provided on the support surface of the support rod. The rubber pad is supported between the support surface of the support rod and the side groove of the pigeon tail rib to prevent wear between the support member and the pigeon tail rib.

[0016] Therefore, this utility model has the following beneficial effects: it ensures the roundness of the inner hole of the generator stator core, simplifies installation, and improves assembly efficiency by cooperating with the dividing plate and support components for positioning and clamping; it also improves the accuracy of the pigeon tail rib in the axial and vertical directions. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of a structure for positioning the pigeon tail rib in the middle of the plate according to this utility model.

[0019] Figure 3 This is a schematic diagram of a structure in which a support member supports a pigeon tail tendon in this utility model.

[0020] Figure 4 This is a partial cross-sectional view of the support component in this utility model.

[0021] As shown in the picture: Stator frame 1, Pigeon tail rib 2, side groove 2.1, Dividing plate 3, pigeon tail trough 3.1, Support component 4, support cylinder 4.1, cylinder tube 4.1.1, threaded tube 4.1.2, support rod 4.2, support surface 4.2.1, adjusting rod hole 4.3, Block 5. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Example 1, as Figure 1 , Figure 2 , Figure 3 , Figure 4 The generator stator dovetail rib 2 positioning fixture shown includes: a stator base 1, on which a plurality of dovetail ribs 2 are vertically arranged on its inner wall; a dividing plate 3, on which two dovetail grooves 3.1 are provided to cooperate with the dovetail ribs 2, and two adjacent dovetail ribs 2 are limited by the dividing plate 3 so that the dovetail ribs 2 are evenly distributed in a circle on the inner wall of the stator base 1; and a support member 4, including a support cylinder 4.1 and a support rod 4.2 threaded to both ends of the support cylinder 4. Two adjacent dovetail ribs 2 are supported by the support member 4, and the support rod 4.2 abuts against the side groove 2.1 of the corresponding dovetail rib 2. The support member 4 corresponds one-to-one with the dividing plate 3.

[0024] In the current generator stator installation process, the lamination of the stator core is a key aspect, and the installation of the pigeontail ribs 2 is of paramount importance. Only with accurate positioning of the pigeontail ribs 2 can the inner hole roundness of the stator core be improved. The inner hole roundness of the generator stator core directly affects the air gap uniformity, magnetic circuit conduction efficiency, and motor operating performance. Currently, the pigeontail ribs 2 are positioned sequentially by calculating the average installation chord length of adjacent pigeontail ribs 2, requiring continuous measurement and calibration, resulting in cumbersome operation and low positioning accuracy. To improve upon the current method of sequentially measuring and positioning adjacent pigeontail ribs 2 by calculating the average installation chord length, which suffers from cumbersome operation and low positioning accuracy, a generator stator pigeontail rib 2 positioning fixture that improves positioning accuracy and ease of operation is provided.

[0025] A positioning fixture for the stator pigeon tail rib 2 of a generator in the above embodiments, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the dovetail ribs 2 vertically arranged on the inner side of the stator frame 1 are equally divided and positioned by the dividing plate 3, so that the dovetail ribs 2 are evenly distributed on the inner wall of the stator frame 1 in a circular pattern. The two dovetail grooves 3.1 on the dividing plate 3 cooperate with the dovetail ribs 2, and the size and spacing of the two dovetail grooves 3.1 on the dividing plate 3 are completely consistent with the size and spacing of the dovetail grooves 3.1 on the generator stator core. The adjacent dovetail ribs 2 are sequentially divided and limited by the dividing plate 3 on the inner circumference of the stator frame 1. After the division and limiting by the dividing plate 3 is completed, the dovetail ribs 2 are supported and pressed tightly one by one by the support member 4. The support member 4 is supported between two adjacent dovetail ribs 2. The support member 4 is close to the dividing plate 3 and corresponds one-to-one with the dividing plate 3. The support member 4 sequentially supports the circumferentially distributed dovetail ribs 2 on the inner circumference of the stator frame 1, so that the dovetail ribs 2 are more stable, the dimensions between the dovetail ribs 2 are more accurate, and it is not easy for them to shift. After the pigeon tail ribs 2 are evenly arranged in a circle inside the stator frame 1, the support blocks 5 are welded on the pigeon tail ribs 2, and then the support blocks 5 are welded to the stator frame 1 to complete the positioning and welding of the pigeon tail ribs 2. Then, the support 4 and the dividing plate 3 are removed in sequence and the stator core is installed. This ensures the roundness of the inner hole of the generator stator core and makes the installation simple. The dividing plate 3 and the support 4 cooperate with each other for positioning and clamping, which improves the assembly efficiency.

[0026] Example 2, as Figure 1 , Figure 2 , Figure 3 , Figure 4The generator stator dovetail rib 2 positioning fixture shown includes: a stator base 1, on which a plurality of dovetail ribs 2 are vertically arranged on its inner wall; a dividing plate 3, on which two dovetail grooves 3.1 are provided to cooperate with the dovetail ribs 2, and two adjacent dovetail ribs 2 are limited by the dividing plate 3 so that the dovetail ribs 2 are evenly distributed in a circle on the inner wall of the stator base 1; and a support member 4, including a support cylinder 4.1 and a support rod 4.2 threaded to both ends of the support cylinder 4. Two adjacent dovetail ribs 2 are supported by the support member 4, and the support rod 4.2 abuts against the side groove 2.1 of the corresponding dovetail rib 2. The support member 4 corresponds one-to-one with the dividing plate 3.

[0027] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the end of the support rod 4.2 is provided with a support surface 4.2.1 that mates with the inner wall of the side groove 2.1 of the pigeon tail rib 2. Two adjacent support members 4 clamp the two side grooves 2.1 of the pigeon tail rib 2. The support surface 4.2.1 at the end of the support rod 4.2 mates with the inner wall of the side groove 2.1 of the pigeon tail rib 2, which better clamps and positions the pigeon tail rib 2. The support rod 4.2 and the side groove 2.1 of the pigeon tail rib 2 are in surface contact, which reduces the damage between the support rod 4.2 and the pigeon tail rib 2.

[0028] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, support rods 4.2 are symmetrically arranged at both ends of the support cylinder 4.1, and the threads on the support rods 4.2 at both ends of the support cylinder 4.1 have opposite directions. The support rods 4.2 are symmetrically arranged at both ends of the support cylinder 4.1 to balance the supporting force at both ends of the support member 4. The support member 4 is arranged in parallel, and the dividing plates 3 are also arranged in parallel. After the dividing plates 3 divide and position the pigeon tail ribs 2 equally, the support member 4 is placed between two adjacent pigeon tail ribs 2. The supporting surface 4.2.1 on the support rod 4.2 of the support member 4 extends into the side groove 2.1 of the pigeon tail rib 2. The supporting surface 4.2.1 circumferentially limits the rotation of the support rod 4.2. By rotating the support cylinder 4.1, the support rods 4.2 at both ends of the support cylinder 4.1 extend outward simultaneously and abut against the side groove 2.1 of the pigeon tail rib 2. The support member 4 abuts against the pigeon tail ribs 2 sequentially on the circumference. Any pigeon tail rib 2 is positioned with adjacent pigeon tail ribs 2 by the two dividing plates 3 respectively, and is supported by the support member 4. Support member 4 corresponds one-to-one with the dividing plate 3, and support member 4 is close to the dividing plate 3.

[0029] Further optimizations were made to the support cylinder 4.1, such as... Figure 1 , Figure 3 , Figure 4As shown, the support cylinder 4.1 includes a cylinder tube 4.1.1 and threaded tubes 4.1.2 fixedly disposed at both ends of the cylinder tube 4.1.1. A support rod 4.2 is inserted into the threaded tube 4.1.2 and threadedly connected to it. The threaded tubes 4.1.2 are welded to both ends of the cylinder tube 4.1.1. The support rod 4.2 is inserted into the threaded tube 4.1.2 and threadedly connected to it. The support component 4 has a simple structure and low equipment cost.

[0030] Further optimizations were made to the support cylinder 4.1, such as... Figure 1 , Figure 3 , Figure 4 As shown, there are several implementation methods for rotating the support cylinder 4.1. Implementation method one: The support cylinder 4.1 is provided with an adjustment rod hole 4.3 for inserting an adjustment rod. When the support cylinder 4.1 needs adjustment, the adjustment rod is inserted into the adjustment rod hole 4.3, and the adjustment rod is turned. The support surface 4.2.1 on the support rod 4.2 of the support member 4 extends into the side groove 2.1 of the pigeon tail rib 2. The support surface 4.2.1 circumferentially limits the rotation of the support rod 4.2. By rotating the support cylinder 4.1, the support rods 4.2 at both ends of the support cylinder 4.1 extend outward simultaneously and abut against the side groove 2.1 of the pigeon tail rib 2. Implementation method two: A handle is provided on the outer wall of the support cylinder 4.1. The handle drives the support cylinder 4.1 to rotate circumferentially. When the support cylinder 4.1 needs to be adjusted, the support cylinder 4.1 is rotated circumferentially by the handle. The support surface 4.2.1 on the support rod 4.2 of the support member 4 extends into the side groove 2.1 of the pigeon tail rib 2. The support surface 4.2.1 rotates circumferentially to limit the support rod 4.2. By rotating the support cylinder 4.1, the support rods 4.2 at both ends of the support cylinder 4.1 extend outward at the same time and abut against the side groove 2.1 of the pigeon tail rib 2.

[0031] Further optimizations were made to the equal-division board 3, such as... Figure 1 , Figure 2 , Figure 4 As shown, two dovetail grooves 3.1 are symmetrically arranged at both ends of the equal-dividing plate 3 to ensure that the two dovetail grooves 3.1 on the equal-dividing plate 3 are subjected to uniform force.

[0032] Further optimizations were made to support rod 4.2, such as... Figure 1 , Figure 3 , Figure 4 As shown, a rubber pad is provided on the support surface 4.2.1 of the support rod 4.2. The rubber pad is supported between the support surface 4.2.1 of the support rod 4.2 and the side groove 2.1 of the dovetail rib 2 to prevent wear between the support member 4 and the dovetail rib 2.

[0033] Example 3, as Figure 1 , Figure 2 , Figure 3 , Figure 4 Example 2 shown, as Figure 1 , Figure 2, Figure 3 , Figure 4 The generator stator dovetail rib 2 positioning fixture shown includes: a stator base 1, on which a plurality of dovetail ribs 2 are vertically arranged on its inner wall; a dividing plate 3, on which two dovetail grooves 3.1 are provided to cooperate with the dovetail ribs 2, and two adjacent dovetail ribs 2 are limited by the dividing plate 3 so that the dovetail ribs 2 are evenly distributed in a circle on the inner wall of the stator base 1; and a support member 4, including a support cylinder 4.1 and a support rod 4.2 threaded to both ends of the support cylinder 4. Two adjacent dovetail ribs 2 are supported by the support member 4, and the support rod 4.2 abuts against the side groove 2.1 of the corresponding dovetail rib 2. The support member 4 corresponds one-to-one with the dividing plate 3.

[0034] In this embodiment, as Figure 1 As shown, at least two layers of dividing plates 3 are provided on the circumferentially evenly distributed dovetail reinforcement 2, with the two dividing plates 3 respectively placed at the upper and lower parts of the dovetail reinforcement 2. The arrangement of at least two layers of dividing plates 3 on the circumferentially evenly distributed dovetail reinforcement 2 improves the vertical division accuracy of the dovetail reinforcement 2. When the length of the dovetail reinforcement 2 is long, three layers of dividing plates 3 can also be provided, respectively placed at the lower, middle, and upper parts of the circumferentially evenly distributed dovetail reinforcement 2, to prevent vertical displacement of the dovetail reinforcement 2 and further improve the axial and vertical accuracy of the dovetail reinforcement 2.

[0035] At the same time, such as Figure 1 As shown, at least two layers of support members 4 are provided on the circumferentially evenly distributed dovetail reinforcement 2, with the two layers of support members 4 respectively placed at the upper and lower parts of the dovetail reinforcement 2. At least two layers of equal-dividing plates 3 are arranged on the circumferentially evenly distributed dovetail reinforcement 2 to improve the vertical division accuracy of the dovetail reinforcement 2. At the same time, at least two layers of support members 4 are provided to support adjacent dovetail reinforcement 2, with the support members 4 close to the corresponding equal-dividing plates 3. When the length of the dovetail reinforcement 2 is long, three layers of support members 4 can also be provided, respectively placed at the lower, middle and upper parts of the circumferentially evenly distributed dovetail reinforcement 2, to prevent the dovetail reinforcement 2 from shifting in the vertical direction and further improve the axial and vertical accuracy of the dovetail reinforcement 2.

[0036] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the end of the support rod 4.2 is provided with a support surface 4.2.1 that mates with the inner wall of the side groove 2.1 of the pigeon tail rib 2. Two adjacent support members 4 clamp the side grooves 2.1 of the pigeon tail rib 2. The support surface 4.2.1 at the end of the support rod 4.2 mates with the inner wall of the side groove 2.1 of the pigeon tail rib 2, better clamping and positioning the pigeon tail rib 2. The support rod 4.2 and the side groove 2.1 of the pigeon tail rib 2 are in surface contact, reducing damage between the support rod 4.2 and the pigeon tail rib 2. Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, support rods 4.2 are symmetrically arranged at both ends of the support cylinder 4.1, and the threads on the support rods 4.2 at both ends of the support cylinder 4.1 have opposite directions. The support rods 4.2 are symmetrically arranged at both ends of the support cylinder 4.1 to balance the supporting force at both ends of the support member 4. The support member 4 is arranged in parallel, and the dividing plates 3 are also arranged in parallel. After the dividing plates 3 divide and position the pigeon tail ribs 2 equally, the support member 4 is placed between two adjacent pigeon tail ribs 2. The supporting surface 4.2.1 on the support rod 4.2 of the support member 4 extends into the side groove 2.1 of the pigeon tail rib 2. The supporting surface 4.2.1 circumferentially limits the rotation of the support rod 4.2. By rotating the support cylinder 4.1, the support rods 4.2 at both ends of the support cylinder 4.1 extend outward simultaneously and abut against the side groove 2.1 of the pigeon tail rib 2. The support member 4 abuts against the pigeon tail ribs 2 sequentially on the circumference. Any pigeon tail rib 2 is positioned with adjacent pigeon tail ribs 2 by the two dividing plates 3 respectively, and is supported by the support member 4. Support member 4 corresponds one-to-one with the dividing plate 3, and support member 4 is close to the dividing plate 3.

[0037] Further optimizations were made to the support cylinder 4.1, such as... Figure 1 , Figure 3 , Figure 4 As shown, the support cylinder 4.1 includes a cylinder tube 4.1.1 and threaded tubes 4.1.2 fixedly disposed at both ends of the cylinder tube 4.1.1. A support rod 4.2 is inserted into the threaded tube 4.1.2 and threadedly connected to it. The threaded tubes 4.1.2 are welded to both ends of the cylinder tube 4.1.1. The support rod 4.2 is inserted into the threaded tube 4.1.2 and threadedly connected to it. The support component 4 has a simple structure and low equipment cost.

[0038] Further optimizations were made to the support cylinder 4.1, such as... Figure 1 , Figure 3 , Figure 4As shown, there are several implementation methods for rotating the support cylinder 4.1. Implementation method one: The support cylinder 4.1 is provided with an adjustment rod hole 4.3 for inserting an adjustment rod. When the support cylinder 4.1 needs adjustment, the adjustment rod is inserted into the adjustment rod hole 4.3, and the adjustment rod is turned. The support surface 4.2.1 on the support rod 4.2 of the support member 4 extends into the side groove 2.1 of the pigeon tail rib 2. The support surface 4.2.1 circumferentially limits the rotation of the support rod 4.2. By rotating the support cylinder 4.1, the support rods 4.2 at both ends of the support cylinder 4.1 extend outward simultaneously and abut against the side groove 2.1 of the pigeon tail rib 2. Implementation method two: A handle is provided on the outer wall of the support cylinder 4.1. The handle drives the support cylinder 4.1 to rotate circumferentially. When the support cylinder 4.1 needs to be adjusted, the support cylinder 4.1 is rotated circumferentially by the handle. The support surface 4.2.1 on the support rod 4.2 of the support member 4 extends into the side groove 2.1 of the pigeon tail rib 2. The support surface 4.2.1 rotates circumferentially to limit the support rod 4.2. By rotating the support cylinder 4.1, the support rods 4.2 at both ends of the support cylinder 4.1 extend outward at the same time and abut against the side groove 2.1 of the pigeon tail rib 2.

[0039] Further optimizations were made to the equal-division board 3, such as... Figure 1 , Figure 2 , Figure 4 As shown, two dovetail grooves 3.1 are symmetrically arranged at both ends of the equal-dividing plate 3 to ensure that the two dovetail grooves 3.1 on the equal-dividing plate 3 are subjected to uniform force.

[0040] Further optimizations were made to support rod 4.2, such as... Figure 1 , Figure 3 , Figure 4 As shown, a rubber pad is provided on the support surface 4.2.1 of the support rod 4.2. The rubber pad is supported between the support surface 4.2.1 of the support rod 4.2 and the side groove 2.1 of the dovetail rib 2 to prevent wear between the support member 4 and the dovetail rib 2.

[0041] The specific embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the specific scope of implementation of this utility model. All equivalent changes made to the shape and structure of this utility model should be included within the protection scope of this utility model.

Claims

1. A positioning fixture for the stator dovetail rib of a generator, characterized in that, include: The stator base has several dovetail ribs arranged vertically on its inner wall. The equal-dividing plate has two dovetail grooves that cooperate with the dovetail ribs. The two adjacent dovetail ribs are limited by the equal-dividing plate so that the dovetail ribs are evenly distributed in a circle on the inner wall of the stator base. The support component includes a support cylinder and support rods threaded to both ends of the support cylinder. Two adjacent pigeon tail ribs are supported by the support component, and the support rods abut against the side grooves of the corresponding pigeon tail ribs. The support component corresponds one-to-one with the dividing plate.

2. The generator stator pigeon tail rib positioning fixture according to claim 1, characterized in that, The end of the support rod is provided with a support surface that mates with the inner wall of the side groove of the pigeon tail tendon.

3. The generator stator pigeon tail rib positioning fixture according to claim 2, characterized in that, The support rods are symmetrically arranged at both ends of the support cylinder, and the threads on the support rods at both ends of the support cylinder have opposite directions of rotation.

4. The generator stator pigeon tail rib positioning fixture according to claim 3, characterized in that, The support cylinder includes a tube and threaded tubes fixed at both ends of the tube. The support rod is inserted into the threaded tube and threadedly connected to the threaded tube.

5. A generator stator pigeon tail rib positioning fixture according to claim 1, 2, 3, or 4, characterized in that, The support cylinder is provided with an adjustment rod hole for inserting an adjustment rod.

6. A generator stator pigeon tail rib positioning fixture according to claim 1, 2, 3, or 4, characterized in that, The two pigeon tail grooves on the equal dividing plate are symmetrically arranged at both ends of the equal dividing plate.

7. The generator stator pigeon tail rib positioning fixture according to claim 6, characterized in that, Each pigeon tail rib is positioned with the adjacent pigeon tail ribs by two equally spaced plates and is supported by the adjacent pigeon tail ribs by the support members.

8. A generator stator pigeon tail rib positioning fixture according to claim 1, 2, 3, or 4, characterized in that, The pigeon tail tendons, which are evenly distributed in a circle, are provided with at least two layers of dividing plates that divide the pigeon tail tendons equally, with the two dividing plates placed on the upper and lower parts of the pigeon tail tendons, respectively.

9. A generator stator pigeon tail rib positioning fixture according to claim 8, characterized in that, The pigeon tail tendons, which are evenly distributed around the circumference, are provided with at least two layers of support members that support adjacent pigeon tail tendons, wherein the two layers of support members are respectively placed on the upper and lower parts of the pigeon tail tendons.

10. A generator stator pigeon tail rib positioning fixture according to claim 2, 3, or 4, characterized in that, A rubber pad is provided on the support surface of the support rod.

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