Disassembling and assembling tool for outer bearing of guide vane of bulb tubular turbine

Abstract

The utility model relates to a bulb tubular turbine guide vane outer bearing dismounting tool which comprises a bearing seat and a connecting steel cable, connecting pieces are arranged at the two ends of the connecting steel cable, a connecting ring seat is arranged at the top end of the bearing seat, and a center hole jack is fixedly connected to the top end of the connecting ring seat. One end of the center hole jack penetrates through the top end of the connecting ring base and extends to the inner top wall of the connecting ring base, and the end, close to the connecting ring base, of the connecting steel cable penetrates through the inner wall of the center hole jack and extends to the outer side of the center hole jack. The utility model relates to the technical field of water turbine maintenance tools. According to the bulb tubular turbine guide vane outer bearing disassembling and assembling tool, by arranging the connecting steel cable, the concave circular plates and the connecting pieces, the situation that nuts on the lead screws bear the reverse acting force of the bottom plate, the lead screws slide, and consequently nuts are difficult to disassemble and assemble can be avoided, the concave circular plates with different diameters can be replaced to cope with empty grooves in different bearing seats, and the assembling and disassembling efficiency is improved. The use effect of the tool is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water turbine repair tools, in particular to a tool for disassembling and assembling an outer bearing of a guide vane of a bulb tubular water turbine. Background Art

[0002] The bulb tubular turbine is a common type of turbine, especially suitable for the development of low head resources. Its characteristic is that it can convert energy under a small head difference, and is suitable for a variety of water conservancy projects. The guide vane outer bearing is an important component of the turbine water guide mechanism.

[0003] Current disassembly and assembly tools use a hollow hydraulic jack to drive the screw to move. When the screw moves, the base plate will move together due to the resistance of the nut on the screw, and the outer bearing in the bearing seat will be pushed out by the moving base plate. However, when the base plate pushes the outer bearing, the nut will bear a large reverse force during the movement of the base plate, which can easily increase the force on the thread between the screw and the nut, causing the screw to slip, making it very difficult to remove the tool after subsequent use, thereby reducing the effectiveness of the tool. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a tool for disassembling and assembling the outer bearing of a guide vane of a bulb tubular turbine, so as to solve the technical problems mentioned in the above background technology.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A tool for disassembling and assembling the outer bearing of a guide vane of a bulb-type cross-flow turbine comprises a bearing seat and a connecting steel cable, both ends of the connecting steel cable are equipped with connecting pieces, the top end of the bearing seat is equipped with a connecting ring seat, the top end of the connecting ring seat is fixedly connected to a through-hole jack, and one end of the through-hole jack penetrates the top end of the connecting ring seat and extends to the inner top wall of the connecting ring seat, and the end of the connecting steel cable close to the connecting ring seat penetrates the inner wall of the through-hole jack and extends to the outside of the through-hole jack.

[0007] By adopting the above technical solution, the connecting steel cable is used to connect the connecting piece and the tension of the transmission through-hole jack, the connecting piece is used to connect the concave circular plate and fix the position of the concave circular plate, the connecting ring seat is used to fix the position of the bearing seat to prevent the bearing seat and the outer bearing from moving together, and the through-hole jack is used to drive the connecting steel cable to move, and then drive the moving plate to move together.

[0008] In a preferred example, the utility model can be further configured as follows: an outer bearing is installed on the inner wall of the bearing seat, and the connecting steel cable is located in the inner ring of the outer bearing, and the end of the connecting steel cable close to the bearing seat passes through the outer bearing and the bearing seat in sequence and passes through the outside of the bearing seat.

[0009] By adopting the above technical solution, the outer bearing is used to fix and connect the outer bearing, and the outer bearing is used to assist the turbine guide vane to rotate.

[0010] In a preferred example, the utility model can be further configured as follows: the connecting member includes a connecting column, both ends of the connecting steel cable are fixedly connected to the connecting column, the surrounding side walls of the two connecting columns are each provided with two connecting grooves, one wall of several of the connecting grooves is provided with a movable groove, and both walls of several of the movable grooves are provided with limiting grooves.

[0011] By adopting the above technical solution, the connecting column is used to connect the connecting steel cable and the connecting piece, the connecting groove facilitates the subsequent insertion of the concave circular plate into the outside of the connecting column, the movable groove is used to assist and guide the movement of the clamping block, and the limiting groove is used to subsequently limit the moving distance of the clamping block in the movable groove to prevent the clamping block from escaping from the movable groove.

[0012] In a preferred example, the utility model can be further configured as follows: the inner walls of several of the movable grooves are slidably connected with a clamping block, and one end of the clamping block is an arc-shaped structure, and the outer sides of several of the clamping blocks are fixedly connected with two limiting plates, and the limiting plates are slidably connected to the inner walls of the limiting grooves.

[0013] By adopting the above technical solution, the clamping block is used to subsequently fix the concave circular plate on the connecting column, and the limiting plate moves in the limiting groove to limit the moving distance of the clamping block.

[0014] In a preferred example, the utility model can be further configured as follows: the other ends of several of the clamping blocks are fixedly connected to a V-shaped spring plate, and one end of the V-shaped spring plate is attached to the inner wall of the movable groove, and one end of the two connecting columns is fixedly connected to a blocking plate.

[0015] By adopting the above technical solution, the V-shaped spring plate can pop out the clamping block retracted into the movable groove, and the blocking plate can prevent the subsequent concave circular plate from moving away from one end of the connecting column.

[0016] In a preferred example, the utility model can be further configured as follows: the inner walls of the connecting grooves on the two connecting columns are each equipped with a concave circular plate, the inner walls of the two concave circular plates are each provided with two snap-fitting grooves, and one end of the snap-fitting block is attached to the inner wall of the snap-fitting groove.

[0017] By adopting the above technical solution, the concave circular plate is used to assist in pushing the outer bearing in the bearing seat to move, and the position of the concave circular plate is fixed by inserting the clamping block into the clamping groove.

[0018] In summary, the present invention includes at least one of the following beneficial technical effects:

[0019] 1. A tool for disassembling and assembling the outer bearing of a guide vane of a bulb-type tubular turbine. The tool connects a steel cable, a concave circular plate and a connecting piece, so that the concave circular plate on one end of the connecting steel cable moves to push the outer bearing in the bearing seat to move and disengage. By setting the connecting steel cable, the concave circular plate and the connecting piece, it is not only possible to prevent the nut on the screw rod from bearing the reverse force of the bottom plate, which makes it difficult to disassemble and assemble the nut due to the slipping of the screw rod, but also it is possible to replace concave circular plates of different diameters to deal with empty slots on different bearing seats, thereby improving the use effect of the tool.

[0020] 2. This kind of bulb-type cross-flow turbine guide vane outer bearing disassembly and assembly tool, through the connecting piece, when the clamping block is aligned with the clamping groove on the concave circular plate, the elastic force of the V-shaped spring plate is used to retract the V-shaped spring plate, thereby pushing the clamping block to move into the clamping groove, thereby completing the position fixation of the concave circular plate, and the concave circular plate can be quickly disassembled and installed by setting the connecting piece, which is convenient for subsequent replacement of the concave circular plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 The utility model is a structural schematic diagram of a tool for disassembling and assembling an outer bearing of a bulb tubular turbine guide vane.

[0023] Figure 2 The utility model discloses an exploded view of a bearing seat, an outer bearing and a connecting piece in a tool for disassembling and assembling an outer bearing of a bulb tubular turbine guide vane.

[0024] Figure 3 The utility model is a cross-sectional view of a connector in a tool for disassembling and assembling an outer bearing of a guide vane of a bulb tubular turbine.

[0025] In the figure, 1, bearing seat; 2, outer bearing; 3, connecting steel cable; 4, connecting piece; 401, connecting column; 402, connecting groove; 403, moving groove; 404, limiting groove; 405, clamping block; 406, limiting plate; 407, V-shaped spring plate; 408, blocking plate; 409, clamping groove; 5, connecting ring seat; 6, through-hole jack; 7, concave circular plate. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings. Example

[0027] Reference Figure 1-Figure 3The utility model discloses a tool for disassembling and assembling an outer bearing of a guide vane of a bulb-type cross-flow turbine, comprising a bearing seat 1 and a connecting steel cable 3, both ends of the connecting steel cable 3 are provided with connecting pieces 4, a connecting ring seat 5 is provided at the top of the bearing seat 1, a through-hole jack 6 is fixedly connected to the top of the connecting ring seat 5, and one end of the through-hole jack 6 penetrates the top of the connecting ring seat 5 and extends to the inner top wall of the connecting ring seat 5, and one end of the connecting steel cable 3 close to the connecting ring seat 5 penetrates the inner wall of the through-hole jack 6 and extends to the outside of the through-hole jack 6.

[0028] When the concave circular plate 7 is moved, the outer bearing 2 in the bearing seat 1 is pushed away from the bearing seat 1. The connecting piece 4 is provided with a clamping block 405 in the movable groove 403 which is inserted into the clamping groove 409 on the concave circular plate 7 to realize quick disassembly and installation of the concave circular plate 7, so as to facilitate the subsequent replacement of the concave circular plate 7.

[0029] In a further preferred embodiment of the present invention, Figure 1 and Figure 2 As shown, the inner wall of the bearing seat 1 is equipped with an outer bearing 2, and the connecting steel cable 3 is located in the inner ring of the outer bearing 2. The end of the connecting steel cable 3 close to the bearing seat 1 passes through the outer bearing 2 and the bearing seat 1 in sequence and passes through the outside of the bearing seat 1.

[0030] In this embodiment, the bearing seat 1 is used to connect the outer bearing 2 and fix the position of the outer bearing 2 on the turbine. The connecting steel cable 3 passes through the outer bearing 2 and the bearing seat 1 to facilitate the subsequent pushing of the outer bearing 2 upward from the bottom end of the bearing seat 1.

[0031] In a further preferred embodiment of the present invention, Figure 1 , Figure 2 and Figure 3 As shown, the connecting member 4 includes a connecting column 401, and both ends of the connecting steel cable 3 are fixedly connected with the connecting column 401, and the surrounding side walls of the two connecting columns 401 are each provided with two connecting grooves 402, and one wall of several connecting grooves 402 is provided with a movable groove 403, and both walls of several movable grooves 403 are provided with a limiting groove 404.

[0032] In this embodiment, the opening of the concave circular plate 7 is aligned with the connecting groove 402, and then the concave circular plate 7 is pushed to move and insert into the connecting groove 402. The connecting groove 402 is provided to assist the concave circular plate 7 in being inserted into the connecting column 401, and the connecting groove 402 can also be used to prevent the concave circular plate 7 from moving outside the connecting column 401. By providing the limiting groove 404, not only can the subsequent limiting plate 406 be given movement space, but the moving distance and moving direction of the limiting plate 406 can also be fixed.

[0033] In a further preferred embodiment of the present invention, Figure 3 As shown, the inner walls of several movable grooves 403 are slidably connected with a clamping block 405, and one end of the clamping block 405 is an arc-shaped structure, and the outer sides of several clamping blocks 405 are fixedly connected with two limiting plates 406, and the limiting plates 406 are slidably connected to the inner wall of the limiting groove 404.

[0034] In this embodiment, the clamping block 405 is squeezed by the inner wall of the concave circular plate 7 into the movable groove 403. The limiting plate 406 and the limiting groove 404 can limit the moving distance of the clamping block 405 to prevent the clamping block 405 from detaching from the movable groove 403, resulting in failure to fix the concave circular plate 7. The arc surface of the arc-shaped structure at one end of the clamping block 405 can enable the clamping block 405 to move smoothly when squeezed by the inner wall of the concave circular plate 7, thereby preventing a jam between the arc end of the clamping block 405 and the concave circular plate 7.

[0035] In a further preferred embodiment of the present invention, Figure 3 As shown, the other ends of the plurality of clamping blocks 405 are fixedly connected to a V-shaped spring plate 407 , and one end of the V-shaped spring plate 407 is attached to the inner wall of the movable groove 403 , and one end of the two connecting columns 401 are fixedly connected to a blocking plate 408 .

[0036] In this embodiment, as the locking block 405 moves into the movable groove 403, the V-shaped spring plate 407 will gradually unfold along the inner wall of the movable groove 403. When the locking block 405 is aligned with the locking groove 409 on the concave circular plate 7, the elastic force of the V-shaped spring plate 407 is used to retract the V-shaped spring plate 407, thereby pushing the locking block 405 to move into the locking groove 409, thereby completing the position fixation of the concave circular plate 7. The blocking plate 40 can not only prevent the concave circular plate 7 from moving out of the connecting groove 402 on the connecting column 401, but also apply a thrust to the concave circular plate 7.

[0037] In a further preferred embodiment of the present invention, Figure 2 As shown, the inner walls of the connection grooves 402 on the two connection pillars 401 are both equipped with concave circular plates 7 , and the inner walls of the two concave circular plates 7 are both provided with two clamping grooves 409 , and one end of the clamping block 405 is attached to the inner wall of the clamping groove 409 .

[0038] In this embodiment, the concave circular plate 7 is used to assist in pushing the outer bearing 2 in the bearing seat 1 to move, so that the outer bearing 2 moves out of the bearing seat 1, wherein when the contact surface of the bearing seat 1 and the connecting ring seat 5 is reversed, it is convenient to push the new outer bearing 2 into the bearing seat 1.

[0039] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A tool for disassembling and assembling the outer bearing of a bulb tubular turbine guide vane, characterized in that: The invention comprises a bearing seat (1) and a connecting steel cable (3), both ends of the connecting steel cable (3) are provided with connecting pieces (4), the top end of the bearing seat (1) is provided with a connecting ring seat (5), the top end of the connecting ring seat (5) is fixedly connected with a through-hole jack (6), and one end of the through-hole jack (6) passes through the top end of the connecting ring seat (5) and extends to the inner top wall of the connecting ring seat (5), and one end of the connecting steel cable (3) close to the connecting ring seat (5) passes through the inner wall of the through-hole jack (6) and extends to the outer side of the through-hole jack (6).

2. A bulb-type tubular turbine guide vane outer bearing disassembly and assembly tool according to claim 1, characterized in that: The inner wall of the bearing seat (1) is provided with an outer bearing (2), and the connecting steel cable (3) is located in the inner ring of the outer bearing (2). The end of the connecting steel cable (3) close to the bearing seat (1) passes through the outer bearing (2) and the bearing seat (1) in sequence and passes through the outer side of the bearing seat (1).

3. A bulb-type tubular turbine guide vane outer bearing disassembly and assembly tool according to claim 2, characterized in that: The connecting member (4) comprises a connecting column (401), both ends of the connecting steel cable (3) are fixedly connected to the connecting column (401), the peripheral side walls of the two connecting columns (401) are each provided with two connecting grooves (402), one wall of a plurality of the connecting grooves (402) is provided with a moving groove (403), and both walls of a plurality of the moving grooves (403) are provided with a limiting groove (404).

4. A bulb-type tubular turbine guide vane outer bearing disassembly and assembly tool according to claim 3, characterized in that: The inner walls of the plurality of movable grooves (403) are slidably connected to a clamping block (405), and one end of the clamping block (405) is an arc-shaped structure. The outer sides of the plurality of clamping blocks (405) are fixedly connected to two limiting plates (406), and the limiting plates (406) are slidably connected to the inner wall of the limiting groove (404).

5. A bulb-type tubular turbine guide vane outer bearing disassembly and assembly tool according to claim 4, characterized in that: The other ends of the plurality of clamping blocks (405) are fixedly connected to a V-shaped spring plate (407), and one end of the V-shaped spring plate (407) is attached to the inner wall of the movable groove (403), and one end of the two connecting columns (401) are fixedly connected to a blocking plate (408).

6. A bulb-type tubular turbine guide vane outer bearing disassembly and assembly tool according to claim 5, characterized in that: The inner walls of the connection grooves (402) on the two connection pillars (401) are both provided with concave circular plates (7), the inner walls of the two concave circular plates (7) are both provided with two clamping grooves (409), and one end of the clamping block (405) is fitted on the inner wall of the clamping groove (409).

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