Positioning and assembling device for stator ventilation slot plate of hydro-generator

Abstract

The invention discloses a hydro-generator stator ventilation slot plate positioning and assembling device which comprises an operation table, a plurality of edge expanding strips are movably connected with the operation table, the outer side ends of the edge expanding strips are in an arc shape, every two edge expanding strips form a group, the two edge expanding strips in the group are symmetrical, and the arcs of the edge expanding strips face outwards. The multiple sets of edge expanding strips are evenly distributed on the operation table with the midpoint of the operation table as the axis. The bracket is L-shaped, and the L-shaped transverse section of the bracket is arranged above the operation table; the upper end of the lifting rod penetrates through the lower end face of the support and then is connected with the lifting air cylinder. The upper end face of the pressing plate is fixedly connected with the lower end face of the lifting rod; the push blocks are arranged between the two edge expanding strips in one group, and the push blocks are in sliding connection with the upper end face of the operation table; the power motors correspond to the push blocks one to one, and the push blocks are slidably connected with the operation table. The ventilation slot plate has the beneficial effects that the ventilation slot plate can be mounted more conveniently, and the situation of part deviation can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field related to water turbine generator parts assembly equipment, in particular to a positioning and assembling device for a water turbine generator stator ventilation slot plate. Background Art

[0002] The stator ventilation slot plate of the hydro-turbine generator consists of two parts: the stator punching and the ventilation slot steel. The ventilation slot steel is integrated with the stator punching by spot welding. Its function is to form a radial air duct and ventilate and cool the stator core and stator coil. The ventilation slot steel material is generally non-magnetic I-beam steel, and its installation position is at the center of the stator punching teeth or on both sides of the uniformly distributed teeth, parallel to the side of the stator punching tooth slot. When the number of ventilation slot steel increases, the problem of offset during installation often occurs, and it may not be detected at the beginning, and it will be found that one-to-one installation is also difficult to install. Summary of the invention

[0003] The present invention aims to overcome the shortcomings of the prior art that the ventilation slot plate cannot be installed more conveniently and the deviation of components cannot be reduced, and provides a positioning and assembling device for the stator ventilation slot plate of a hydro-turbine generator that can more conveniently install the ventilation slot plate and reduce the deviation of components.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A positioning and assembling device for a stator ventilation slot plate of a hydro-generator, comprising: An operating table is placed on the center ground of the positioning assembly device; A plurality of edge expansion strips are placed on the upper end surface of the operating table and are movably connected to the operating table. The shape of the edge expansion strips is that the outer ends are arc-shaped. Two edge expansion strips form a group. The two edge expansion strips in a group are symmetrical and the arcs of the edge expansion strips face outward. The edge expansion strips of the plurality of groups are evenly distributed on the operating table with the midpoint of the operating table as the axis. A bracket is placed on the side of the operating table, the bracket is L-shaped, and the L-shaped cross section of the bracket is placed above the operating table; A lifting cylinder is placed on the upper end surface of the L-shaped transverse section of the bracket, and the lifting cylinder is connected to the upper end surface of the L-shaped transverse section of the bracket; A lifting rod is placed between the L-shaped cross section of the bracket and the operating table, and the upper end of the lifting rod passes through the lower end surface of the L-shaped cross section of the bracket and is connected to the lifting cylinder; A pressing plate is placed on the lower end surface of the lifting rod, and the upper end surface of the pressing plate is fixedly connected to the lower end surface of the lifting rod; A plurality of push blocks are placed on the upper end surface of the operating table. The push blocks correspond to a group of edge expansion strips one by one. The push blocks are placed between two edge expansion strips in a group and on the outside of the edge expansion strips. The push blocks are slidably connected to the upper end surface of the operating table. A plurality of power motors are placed on the operating table. The power motors correspond to the push blocks one by one. The push blocks are slidably connected to the operating table through the power motors.

[0005] When in use, first place the ventilation channel steel on the operating table, then align groups of expansion strips with the notches of the ventilation channel steel, then let the lifting cylinder on the bracket drive the lifting rod to let the pressure plate press down the ventilation channel steel to prevent the ventilation channel steel from moving easily, then lift the expansion strip, let the inner end of the expansion strip be placed in the notch of the ventilation channel steel, then place the stator punching sheet in front of the push block, drive the power motor, let the push block simultaneously push the stator punching sheet along the expansion strip into the notch of the ventilation channel steel, then lower the expansion strip, and then you can weld the stator punching sheet and the ventilation channel steel together, so that the ventilation slot plate can be installed more conveniently and the offset of components can be reduced.

[0006] Preferably, the operating table is provided with an inner cavity, a lifting motor and a lifting plate, the inner cavity is placed in the operating table, the lifting motor and the lifting plate are placed in the inner cavity, the lifting motor is fixedly connected to the inner bottom surface of the inner cavity, the lower end surface of the lifting plate is fixedly connected to the upper end of the movable rod of the lifting motor, and the lower end surface of the edge expansion strip passes through the upper end surface of the operating table and is fixedly connected to the upper end surface of the lifting plate. The lifting motor and the lifting plate facilitate the rise and fall of the edge expansion strip.

[0007] Preferably, a plurality of annular soft strips are arranged on the upper end surface of the operating table, and the annular soft strips are evenly distributed outwards with the midpoint of the operating table as the center, and the distribution center of the annular soft strips is the same as the distribution center of the edge expansion strips, and the annular soft strips are placed below the pressing plate, and the lower end surface of the annular soft strips is fixedly connected to the upper end surface of the operating table. The annular soft strips can reduce the contact between the ventilation channel steel and the operating table surface.

[0008] Preferably, a plurality of suction cups 1 are arranged on the upper end surface of one of the annular soft strips, and the suction cups 1 are evenly distributed on the upper end surface of the annular soft strip, and the suction cups 1 are fixedly connected to the upper end surface of the annular soft strip. The suction cups 1 are convenient for improving the stability of the ventilation channel steel on the annular soft strip.

[0009] Preferably, a plurality of suction cups 2 are provided on the lower end surface of the pressing plate, and the suction cups 2 are evenly distributed on the lower end surface of the pressing plate and fixedly connected to the lower end surface of the pressing plate. The suction cups 2 can both reduce the contact between the pressing plate and the ventilation channel steel and increase the stability of the ventilation channel steel under the pressing plate.

[0010] Preferably, the operating table is provided with a plurality of sliding rails, the sliding rails correspond to the push blocks one by one, the sliding rails are fixedly connected to the operating table, the upper end surface of the sliding rails is provided with a slide groove, the lower end of the push block is placed in the slide groove, and the push block is slidably connected to the sliding rails through the slide groove. The existence of the sliding rails facilitates the determination of the position of the push block.

[0011] Preferably, the cross-section of the slide groove is T-shaped, a clamping block is provided on the lower end of the push block, the clamping block is fixedly connected to the lower end surface of the push block, the shape of the clamping block corresponds to the shape of the slide groove, the clamping block is placed in the slide groove, and the push block is clamped with the sliding track through the cooperation of the slide groove and the clamping block. The slide groove and the clamping block facilitate the connection between the push block and the sliding track, and are not easy to shake or detach.

[0012] Preferably, a plurality of anti-slip strips are arranged on the inner side of the push block, the anti-slip strips are evenly distributed vertically and horizontally on the inner side of the push block, and the anti-slip strips are fixedly connected to the inner side of the push block. The anti-slip strips can reduce the separation of the stator punching sheet during movement.

[0013] Preferably, the cross-section of the annular soft strip is triangular, and the diameter of the pressure plate is larger than the diameter of the outermost annular soft strip. The cross-section of the annular soft strip is triangular, which is convenient for reducing contact with the ventilation channel steel.

[0014] Preferably, the outermost end of the pressing plate is placed inside the innermost end of the edge expansion strip. The pressing plate is smaller than the innermost end of the edge expansion strip, so that there will be no interference with the edge expansion strip and no obstruction to the welding of the stator punching sheet.

[0015] The beneficial effects of the present invention are: the ventilation slot plate can be installed more conveniently and the situation of component offset can be reduced; the lifting motor and the lifting plate facilitate the rising and falling of the expansion strip; the annular soft strip can reduce the contact between the ventilation slot steel and the operating table surface; the suction cup one facilitates the improvement of the stability of the ventilation slot steel on the annular soft strip; the suction cup two can both reduce the contact between the pressure plate and the ventilation slot steel and increase the stability of the ventilation slot steel under the pressure plate; the existence of the sliding track facilitates the determination of the position of the push block; the sliding groove and the card block facilitate the connection between the push block and the sliding track, which is not easy to shake and detach; the anti-slip strip can reduce the detachment of the stator punching sheet when moving; the cross-sectional shape of the annular soft strip is triangular, which facilitates the reduction of contact with the ventilation slot steel; the pressure plate is smaller than the inner side of the innermost end of the expansion strip, so there will be no interference with the expansion strip and will not hinder the welding of the stator punching sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 An enlarged view of detail A; Figure 3 is a cross-sectional view of the front view of the present invention; Figure 4 yes Figure 3 An enlarged view of detail B; Figure 5 yes Figure 3 Detail of C.

[0017] In the figure: 1. operating table, 2. edge expansion strip, 3. bracket, 4. lifting cylinder, 5. pressure plate, 6. lifting rod, 7. push block, 8. power motor, 9. inner cavity, 10. lifting motor, 11. lifting plate, 12. annular soft strip, 13. suction cup 1, 14. suction cup 2, 15. sliding track, 16. slide groove, 17. block, 18. anti-slip strip. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] like Figure 1 and Figure 3 As shown, a positioning and assembling device for a stator ventilation slot plate of a hydro-generator comprises: An operating table 1 is placed on the center ground of the positioning assembly device; A plurality of edge expansion strips 2 are placed on the upper end surface of the operating table 1 and are movably connected to the operating table 1. The shape of the edge expansion strips 2 is that the outer end is arc-shaped. Two edge expansion strips 2 form a group. The two edge expansion strips 2 in a group are symmetrical and the arc of the edge expansion strips 2 faces outward. The plurality of groups of edge expansion strips 2 are evenly distributed on the operating table 1 with the midpoint of the operating table 1 as the axis. The bracket 3 is placed on the side of the operating table 1, the bracket 3 is L-shaped, and the L-shaped cross section of the bracket 3 is placed above the operating table 1; The lifting cylinder 4 is placed on the upper end surface of the L-shaped transverse section of the bracket 3, and the lifting cylinder 4 is connected to the upper end surface of the L-shaped transverse section of the bracket 3; The lifting rod 6 is placed between the L-shaped transverse section of the bracket 3 and the operating table 1. The upper end of the lifting rod 6 passes through the lower end surface of the L-shaped transverse section of the bracket 3 and is connected to the lifting cylinder 4. The pressing plate 5 is placed on the lower end surface of the lifting rod 6, and the upper end surface of the pressing plate 5 is fixedly connected to the lower end surface of the lifting rod 6; A plurality of push blocks 7 are placed on the upper end surface of the operating table 1. The push blocks 7 correspond to a group of edge expansion strips 2 one by one. The push blocks 7 are placed between two edge expansion strips 2 in a group and on the outside of the edge expansion strips 2. The push blocks 7 are slidably connected to the upper end surface of the operating table 1. A plurality of power motors 8 are placed on the operating table 1 . The power motors 8 correspond to the push blocks 7 one by one. The push blocks 7 are slidably connected to the operating table 1 through the power motors 8 .

[0020] like Figure 3 , Figure 4 and Figure 5As shown, the operating table 1 is provided with an inner cavity 9, a lifting motor 10 and a lifting plate 11, the inner cavity 9 is placed in the operating table 1, the lifting motor and the lifting plate 11 are both placed in the inner cavity 9, the lifting motor 10 is fixedly connected to the inner bottom surface of the inner cavity 9, the lower end surface of the lifting plate 11 is fixedly connected to the upper end of the movable rod of the lifting motor 10, and the lower end surface of the edge expansion strip 2 passes through the upper end surface of the operating table 1 and is fixedly connected to the upper end surface of the lifting plate 11.

[0021] like Figure 1 and Figure 3 As shown, a plurality of annular soft strips 12 are provided on the upper end surface of the operating table 1, and the annular soft strips 12 are evenly distributed outward with the midpoint of the operating table 1 as the center, and the distribution center of the annular soft strips 12 is the same as the distribution center of the edge expansion strips 2. The annular soft strips 12 are placed below the pressing plate 5, and the lower end surface of the annular soft strips 12 is fixedly connected to the upper end surface of the operating table 1.

[0022] like Figure 3 and Figure 5 As shown, a plurality of suction cups 13 are provided on the upper end surface of one of the annular soft strips 12 . The suction cups 13 are evenly distributed on the upper end surface of the annular soft strip 12 , and the suction cups 13 are fixedly connected to the upper end surface of the annular soft strip 12 .

[0023] like Figure 3 As shown, a plurality of suction cups 14 are provided on the lower end surface of the pressing plate 5 , and the suction cups 14 are evenly distributed on the lower end surface of the pressing plate 5 and fixedly connected to the lower end surface of the pressing plate 5 .

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the operating table 1 is provided with a plurality of sliding rails 15, and the sliding rails 15 correspond to the push blocks 7 one by one. The sliding rails 15 are fixedly connected to the operating table 1, and a slide groove 16 is provided on the upper end surface of the sliding rail 15. The lower end of the push block 7 is placed in the slide groove 16, and the push block 7 is slidably connected to the sliding rail 15 through the slide groove 16.

[0025] like Figure 1 and Figure 2 As shown, the cross-sectional shape of the slide groove 16 is T-shaped, and a clamping block 17 is provided on the lower end of the push block 7. The clamping block 17 is fixedly connected to the lower end surface of the push block 7. The shape of the clamping block 17 corresponds to the shape of the slide groove 16. The clamping block 17 is placed in the slide groove 16, and the push block 7 is clamped with the sliding track 15 through the cooperation of the slide groove 16 and the clamping block 17.

[0026] like Figure 4 As shown, a plurality of anti-slip strips 18 are provided on the inner side surface of the push block 7 . The anti-slip strips 18 are horizontally and evenly distributed up and down on the inner side surface of the push block 7 . The anti-slip strips 18 are fixedly connected to the inner side surface of the push block 7 .

[0027] like Figure 3 and Figure 5 As shown, the cross-section of the annular soft strip 12 is triangular, and the diameter of the pressing plate 5 is larger than the diameter of the outermost annular soft strip 12 .

[0028] like Figure 3 As shown, the outermost end of the pressing plate 5 is placed inside the innermost end of the edge expansion strip 2 .

[0029] When in use, first place the ventilation channel steel on the upper side of the operating table 1 with the annular soft strip 12, and let the suction cup 13 suck the ventilation channel steel, then let the groups of expansion strips 2 be aligned with the notches of the ventilation channel steel, and then let the lifting cylinder 4 on the bracket 3 drive the lifting rod 6 to let the pressure plate 5 press down the ventilation channel steel, and the suction cup 2 14 prevents the ventilation channel steel from moving easily, and then drive the lifting motor 10 in the inner cavity 9 to let the lifting plate 11 lift the expansion strip 2, so that the inner end of the expansion strip 2 is placed in the notch of the ventilation channel steel, and then The stator punching sheet is placed in front of the push block 7 of the sliding track 15 and close to the anti-slip strip 18. The power motor 8 is driven to allow the block 17 of the push block 7 to move in the slide groove 16. The stator punching sheet can be pushed into the groove of the ventilation channel steel along the expansion strip 2 at the same time. Then the expansion strip 2 is lowered, and the stator punching sheet and the ventilation channel steel can be welded together. After welding is completed, the ventilation channel steel can be removed from the operating table 1, thereby achieving the purpose of more convenient installation of the ventilation channel plate and reducing the offset of components.

Claims

1. A positioning and assembling device for a stator ventilation slot plate of a hydro-generator, characterized in that: include: An operating table (1) is placed on the center ground of the positioning assembly device; A plurality of edge expansion strips (2) are all placed on the upper end surface of the operating table (1) and are movably connected to the operating table (1); the shape of the edge expansion strips (2) is that the outer ends are arc-shaped; two edge expansion strips (2) form a group; the two edge expansion strips (2) in a group are symmetrical and the arcs of the edge expansion strips (2) face outward; and a plurality of groups of edge expansion strips (2) are evenly distributed on the operating table (1) with the midpoint of the operating table (1) as the axis; A bracket (3) is placed on the side of the operating table (1); the bracket (3) is L-shaped, and the L-shaped cross section of the bracket (3) is placed above the operating table (1); A lifting cylinder (4) is placed on the upper end surface of the L-shaped transverse section of the bracket (3), and the lifting cylinder (4) is connected to the upper end surface of the L-shaped transverse section of the bracket (3); A lifting rod (6) is placed between the L-shaped transverse section of the bracket (3) and the operating table (1), and the upper end of the lifting rod (6) passes through the lower end surface of the L-shaped transverse section of the bracket (3) and is connected to the lifting cylinder (4); A pressing plate (5) is placed on the lower end surface of the lifting rod (6), and the upper end surface of the pressing plate (5) is fixedly connected to the lower end surface of the lifting rod (6); A plurality of push blocks (7) are placed on the upper end surface of the operating table (1), the push blocks (7) correspond to a group of edge expansion strips (2) one by one, the push blocks (7) are placed between two edge expansion strips (2) in a group and on the outside of the edge expansion strips (2), and the push blocks (7) are slidably connected to the upper end surface of the operating table (1); A plurality of power motors (8) are placed on the operating table (1), the power motors (8) correspond to the push blocks (7) one by one, and the push blocks (7) are slidably connected to the operating table (1) via the power motors (8).

2. The positioning and assembling device for the stator ventilation slot plate of a hydro-generator according to claim 1 is characterized in that: The operating table (1) is provided with an inner cavity (9), a lifting motor (10) and a lifting plate (11); the inner cavity (9) is placed in the operating table (1); the lifting motor and the lifting plate (11) are both placed in the inner cavity (9); the lifting motor (10) is fixedly connected to the inner bottom surface of the inner cavity (9); the lower end surface of the lifting plate (11) is fixedly connected to the upper end of the movable rod of the lifting motor (10); and the lower end surface of the edge expansion strip (2) passes through the upper end surface of the operating table (1) and is fixedly connected to the upper end surface of the lifting plate (11).

3. The positioning and assembling device for the stator ventilation slot plate of a hydro-generator according to claim 1, characterized in that: A plurality of annular soft strips (12) are provided on the upper end surface of the operating table (1), the annular soft strips (12) are evenly distributed outwardly with the midpoint of the operating table (1) as the center, the distribution center of the annular soft strips (12) is the same as the distribution center of the edge expansion strips (2), the annular soft strips (12) are placed below the pressure plate (5), and the lower end surface of the annular soft strips (12) is fixedly connected to the upper end surface of the operating table (1).

4. A positioning and assembling device for a stator ventilation slot plate of a hydro-generator according to claim 3, characterized in that: One of them A plurality of suction cups (13) are provided on the upper end surface of the annular soft strip (12); the suction cups (13) are evenly distributed on the upper end surface of the annular soft strip (12); and the suction cups (13) are fixedly connected to the upper end surface of the annular soft strip (12).

5. The positioning and assembling device for the stator ventilation slot plate of a hydro-generator according to claim 3 is characterized in that: A plurality of suction cups 2 (14) are provided on the lower end surface of the pressing plate (5); the suction cups 2 (14) are evenly distributed on the lower end surface of the pressing plate (5) and are fixedly connected to the lower end surface of the pressing plate (5).

6. The positioning and assembling device for the stator ventilation slot plate of a hydro-generator according to claim 1, characterized in that: The operating table (1) is provided with a plurality of sliding rails (15), the sliding rails (15) corresponding to the push blocks (7) one by one, the sliding rails (15) being fixedly connected to the operating table (1), the upper end surface of the sliding rails (15) being provided with a slide groove (16), the lower end of the push block (7) being placed in the slide groove (16), and the push block (7) being slidably connected to the sliding rails (15) via the slide groove (16).

7. A positioning and assembling device for a stator ventilation slot plate of a hydro-generator according to claim 6, characterized in that: The cross-sectional shape of the slide groove (16) is T-shaped. A clamping block (17) is provided on the lower end of the push block (7). The clamping block (17) is fixedly connected to the lower end surface of the push block (7). The shape of the clamping block (17) corresponds to the shape of the slide groove (16). The clamping block (17) is placed in the slide groove (16). The push block (7) is clamped with the sliding track (15) through the cooperation of the slide groove (16) and the clamping block (17).

8. The positioning and assembling device for the stator ventilation slot plate of a hydro-generator according to claim 7, characterized in that: A plurality of anti-slip strips (18) are provided on the inner side surface of the push block (7). The anti-slip strips (18) are evenly distributed vertically and horizontally on the inner side surface of the push block (7). The anti-slip strips (18) are fixedly connected to the inner side surface of the push block (7).

9. The positioning and assembling device for the stator ventilation slot plate of a hydro-generator according to claim 3, characterized in that: The cross-sectional shape of the annular soft strip (12) is triangular, and the diameter of the pressing plate (5) is greater than the diameter of the outermost annular soft strip (12).

10. The positioning and assembling device for the stator ventilation slot plate of a hydro-generator according to claim 3, characterized in that: The outermost end of the pressing plate (5) is placed inside the innermost end of the edge expansion strip (2).

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