Anti-collision hydroelectric generating set movable guide vane
By designing anti-collision guard plates and limiting mechanisms on the movable guide vanes of the hydroelectric unit, the problem of structure thinning caused by wear of traditional guide vanes is solved, better anti-collision capacity and convenience of replacing the guard plate are achieved, and the guidance is extended The service life of the leaf.
Patent Information
- Application Number
- CN202420228447.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-01-31
AI Technical Summary
The movable guide vanes of traditional anti-collision hydroelectric unit are designed in one-piece design, which requires grinding treatment when wear, resulting in thinning of the surface structure of the guide vanes and easy to damage and corrosion.
The design includes the main body of the guide vane, rotating rod, anti-collision guard plate, insertion rod and limiting mechanism. By setting up the anti-collision guard plate and limiting mechanism, the anti-collision protection of the guide vane is realized, and the removal and replacement of the guard plate is allowed to be avoided. The entire guide vane body.
It improves the anti-collision capability of the guide vane, extends the service life, avoids structural thinning problems caused by wear, and facilitates the replacement and maintenance of guard plates.
Smart Images
Figure CN222208142U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of movable guide vanes of a hydroelectric generator set, in particular to an anti-collision movable guide vane of a hydroelectric generator set. Background Art
[0002] In the early stage of the hydropower unit being put into operation, the construction waste and steel bar heads in the pressure steel pipe were not cleaned up. When the unit was started, the construction waste and steel bar heads would pass through the movable guide vanes with the high-speed water flow, and hit the positive pressure surface of the movable guide vanes, causing bumps and scratches of varying depths, mainly point damage.
[0003] The movable guide vanes of traditional anti-collision hydropower units are usually of one-piece design, so the guide vanes are mainly treated by grinding. However, each wear will cause the surface structure of the guide vanes to become thinner, making them more susceptible to damage and corrosion. Utility Model Content
[0004] In view of the problems existing in the movable guide vanes of the existing anti-collision hydropower unit, the utility model is proposed.
[0005] Therefore, the purpose of the utility model is to provide a movable guide vane of an anti-collision hydropower unit, which solves the problem that the movable guide vane of an anti-collision hydropower unit in the prior art is usually an integrated design, so the guide vane is mainly treated by grinding, but each wear will cause the surface structure of the guide vane to become thinner, making it more susceptible to damage and corrosion.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A movable guide vane of an anti-collision hydroelectric unit comprises a guide vane body and a rotating rod, wherein the rotating rod is rotatably sleeved on the middle part of the guide vane body, anti-collision guard plates are arranged on both sides of the guide vane body, plug rods are fixedly arranged on both ends of one side of the anti-collision guard plate close to the guide vane body, and plug holes are opened on the surface of the guide vane body at positions corresponding to the multiple plug rods, and the multiple plug rods are plugged into the corresponding plug holes;
[0008] A first cavity is provided in the middle of the guide vane body, and second cavities are provided on both sides of the first cavity. A slide plate is slidably provided inside the second cavity, and limit rods are fixedly provided at both ends of one side of the slide plate close to the insertion rod. A limit hole is provided on the rod wall of the insertion rod, and one end of the limit rod extends to the inside of the corresponding insertion hole and is plugged into the corresponding limit hole.
[0009] A first limiting mechanism for limiting the positions of the two slides is arranged inside the first cavity.
[0010] Preferably, the first limiting mechanism includes a ring and a push rod, the ring is fixedly sleeved on the middle end of the rotating rod, two groups of push rods arranged in pairs are respectively arranged on both sides of the ring, the close ends of two adjacent push rods are rotatably connected by a first axle pin, the outer ends of two adjacent push rods are rotatably connected with a connecting block by a second axle pin, one side of the connecting block is fixedly connected to the corresponding slide plate and the ring, a limiting ring is fixedly provided on the outer wall of the guide vane body, one end of the rotating rod passes through the limiting ring, a third cavity is opened inside the outer end of the rotating rod, and a second limiting mechanism for limiting the rotation of the rotating rod relative to the limiting ring is arranged inside the third cavity.
[0011] Preferably, the second limiting mechanism includes a baffle and a clamping block, the two baffles are slidably arranged on both sides of the inside of the third cavity, the two clamping blocks are fixedly arranged on the side opposite to each other of the two baffles, and clamping grooves are provided on both sides of the limiting ring, and one end of the two clamping blocks extends to the outside of the third cavity and is clamped with the corresponding clamping grooves.
[0012] Preferably, springs are fixedly arranged between both ends of the side where the two baffles are close to each other.
[0013] Preferably, sliding rods are fixedly provided on both sides of the interior of the third cavity, and both ends of the two baffles are movably sleeved with the corresponding sliding rods.
[0014] Preferably, the longitudinal sections of the slide plate and the second cavity are both rectangular.
[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:
[0016] 1. The utility model provides anti-collision guard plates on both sides of the guide vane body, thereby providing good anti-collision protection for the guide vane body and improving the anti-collision performance of the guide vane body.
[0017] 2. The utility model can release the limit on the rotating rod by pushing the blocks on both sides into the third cavity, and rotate the rotating rod relative to the limit ring, so that the sleeve ring drives the push rod to rotate toward the horizontal, and then pull the corresponding slide plate to make the limit rod leave the corresponding limit hole, and then the insertion rod can be removed from the insertion hole, so that the anti-collision guard plate can be disassembled and replaced without replacing the entire guide vane body. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0019] Figure 1 This is a structural schematic diagram of a movable guide vane of an anti-collision hydropower unit proposed by the utility model;
[0020] Figure 2 for Figure 1 Schematic diagram of the internal structure;
[0021] Figure 3 for Figure 1 A schematic diagram of the structure of the middle part A is enlarged;
[0022] Figure 4 for Figure 2 Schematic diagram of the enlarged structure of part B in the middle.
[0023] Description of reference numerals:
[0024] 1. Guide vane body; 2. Anti-collision guard plate; 3. Insert rod; 4. Rotating rod; 5. Slide plate; 6. Limit rod; 7. Ring; 8. Push rod; 9. First shaft pin; 10. Connecting block; 11. Second shaft pin; 12. Limit ring; 13. Baffle; 14. Block; 15. Slide rod; 16. Spring. DETAILED DESCRIPTION
[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0026] The utility model embodiment discloses a movable guide vane of an anti-collision hydroelectric unit.
[0027] Reference Figure 1-4 A movable guide vane of an anti-collision hydroelectric unit comprises a guide vane body 1 and a rotating rod 4, the rotating rod 4 is rotatably sleeved on the middle part of the guide vane body 1, anti-collision guard plates 2 are arranged on both sides of the guide vane body 1, and plug rods 3 are fixedly arranged on both ends of the side of the anti-collision guard plate 2 close to the guide vane body 1, and the surface of the guide vane body 1 and the positions corresponding to the multiple plug rods 3 are provided with plug holes, and the multiple plug rods 3 are plugged into the corresponding plug holes;
[0028] Reference Figure 1-4 A first cavity is provided in the middle of the guide vane body 1, and second cavities are provided on both sides of the first cavity. A slide plate 5 is slidably provided inside the second cavity. The longitudinal sections of the slide plate 5 and the second cavity are both rectangular, so that the slide plate 5 cannot rotate, that is, it can slide stably. Limit rods 6 are fixedly provided at both ends of the side of the slide plate 5 close to the insertion rod 3, and a limit hole is provided on the rod wall of the insertion rod 3. One end of the limit rod 6 extends to the inside of the corresponding insertion hole and is plugged into the corresponding limit hole.
[0029] Reference Figure 1-4A first limiting mechanism for limiting the two slides 5 is arranged inside the first cavity, and the first limiting mechanism includes a collar 7 and a push rod 8. The collar 7 is fixedly sleeved on the middle end of the rotating rod 4. Two groups of push rods 8 arranged in pairs are respectively arranged on both sides of the collar 7. The close ends of the two adjacent push rods 8 are rotatably connected by a first axle pin 9. The outer ends of the two adjacent push rods 8 are rotatably connected with a connecting block 10 through a second axle pin 11. One side of the connecting block 10 is fixedly connected to the corresponding slide 5 and the collar 7. A limiting ring 12 is fixedly arranged on the outer wall of the guide vane body 1. One end of the rotating rod 4 passes through the limiting ring 12. A third cavity is opened inside the outer end of the rotating rod 4.
[0030] Reference Figure 1-4 A second limiting mechanism for limiting the rotation of the rotating rod 4 relative to the limiting ring 12 is arranged inside the third cavity. The second limiting mechanism includes a baffle 13 and a clamping block 14. The two baffles 13 are slidably arranged on both sides of the inside of the third cavity. The two clamping blocks 14 are fixedly arranged on the side opposite to each other of the two baffles 13. Slots are provided on both sides of the limiting ring 12. One end of the two clamping blocks 14 extends to the outside of the third cavity and is clamped with the corresponding slots. Springs 16 are fixedly arranged between the two ends of the side close to the two baffles 13, so that the baffle 13 can drive the clamping block 14 to reset. Sliding rods 15 are fixedly arranged on both sides of the inside of the third cavity. The two ends of the two baffles 13 are movably sleeved with the corresponding sliding rods 15, so that the baffles 13 can slide stably.
[0031] In the utility model, when in use, anti-collision guard plates 2 are arranged on both sides of the guide vane body 1, that is, the guide vane body 1 can be well protected against collision and the anti-collision performance of the guide vane body 1 can be improved. When the anti-collision guard plates 2 need to be replaced, the blocks 14 on both sides are pushed into the third cavity, so that the limit of the rotating rod 4 can be released, and the rotating rod 4 can be rotated relative to the limiting ring 6, so that the sleeve ring 7 drives the push rod 8 to rotate toward the horizontal, that is, the corresponding slide plate 5 can be pulled, so that the limiting rod 6 leaves the corresponding limiting hole, and then the insertion rod 3 can be removed from the insertion hole, so that the anti-collision guard plates 2 can be disassembled and replaced without replacing the entire guide vane body 1.
[0032] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A movable guide vane for an anti-collision hydroelectric unit, comprising a guide vane body (1) and a rotating rod (4), characterized in that: The rotating rod (4) is rotatably sleeved on the middle part of the guide vane body (1); anti-collision guard plates (2) are disposed on both sides of the guide vane body (1) against each other; plug rods (3) are fixedly disposed on both ends of the anti-collision guard plate (2) on one side close to the guide vane body (1); and plug holes are provided on the surface of the guide vane body (1) at positions corresponding to the plurality of plug rods (3); and the plurality of plug rods (3) are plugged into the corresponding plug holes; A first cavity is provided in the middle of the guide vane body (1), and second cavities are provided on both sides of the first cavity. A slide plate (5) is slidably provided inside the second cavity, and limiting rods (6) are fixedly provided at both ends of a side of the slide plate (5) close to the insertion rod (3). A limiting hole is provided on the rod wall of the insertion rod (3), and one end of the limiting rod (6) extends to the inside of the corresponding insertion hole and is plugged into the corresponding limiting hole. A first limiting mechanism for limiting the positions of the two slides (5) is arranged inside the first cavity.
2. The anti-collision water turbine movable guide vane according to claim 1 is characterized in that: The first limiting mechanism comprises a collar (7) and a push rod (8), the collar (7) being fixedly sleeved on the middle end of the rotating rod (4), two groups of push rods (8) being arranged in pairs being arranged on both sides of the collar (7), the close ends of two adjacent push rods (8) being rotatably connected via a first axle pin (9), the outer ends of two adjacent push rods (8) being rotatably connected with a connecting block (10) via a second axle pin (11), one side of the connecting block (10) being fixedly connected with the corresponding slide plate (5) and the collar (7), a limiting ring (12) being fixedly arranged on the outer wall of the guide vane body (1), one end of the rotating rod (4) passing through the limiting ring (12), a third cavity being provided inside the outer end of the rotating rod (4), and a second limiting mechanism for limiting the rotation of the rotating rod (4) relative to the limiting ring (12) being provided inside the third cavity.
3. The anti-collision water turbine movable guide vane according to claim 2 is characterized in that: The second limiting mechanism comprises a baffle (13) and a clamping block (14); the two baffles (13) are slidably arranged on both sides of the inside of the third cavity; the two clamping blocks (14) are fixedly arranged on the opposite sides of the two baffles (13); clamping grooves are provided on both sides of the limiting ring (12); one end of the two clamping blocks (14) extends to the outside of the third cavity and is clamped with the corresponding clamping groove.
4. The anti-collision water turbine movable guide vane according to claim 3 is characterized in that: A spring (16) is fixedly arranged between the two ends of the adjacent side of the two baffles (13).
5. The anti-collision water turbine movable guide vane according to claim 3 is characterized in that: Sliding rods (15) are fixedly arranged on both sides of the interior of the third cavity, and both ends of the two baffles (13) are movably sleeved with the corresponding sliding rods (15).
6. The anti-collision water turbine movable guide vane according to claim 3 is characterized in that: The longitudinal sections of the slide plate (5) and the second cavity are both rectangular.