Hydropower station gate opening and closing mechanism

Abstract

The utility model provides a hydropower station gate opening and closing mechanism, which relates to the technical field of hydropower station gates and comprises a gate base provided with a gate frame. A fixed cover is arranged at the position, close to the middle, of the rear portion of the gate frame, and the fixed cover is connected with the gate base. A gate body is arranged between two vertical frames of the gate frame, a servo motor provides power to drive a rotating shaft rod to rotate, the gate body can be adjusted up and down along a guide groove through meshing transmission of a straight gear and a toothed plate, the rapid opening and closing process of the gate body is achieved, and due to the fact that the structure is compact and the transmission efficiency is high, the cost is low. Opening and closing operation of the gate body can be completed in a shorter time, so that safe and stable operation of a hydropower station is ensured, and the problems that when an existing hydropower station gate opening and closing mechanism is used, the opening and closing process of a gate is generally achieved through a steel cable pulley block, a transmission structure is complex, steel cable transmission stroke consumes long time, and cost is high are solved. And the operation stability of the gate is influenced.

Description

Technical Field

[0001] This utility model relates to the field of hydropower station gate technology, and in particular to a hydropower station gate opening and closing mechanism. Background Technology

[0002] During normal power generation at a hydropower station, the opening of the gates needs to be adjusted according to the upstream water inflow and power generation demand to control the amount of water entering the turbines. The gate opening and closing mechanism needs to precisely control the raising and lowering of the gates to ensure the power generation efficiency and operational stability of the hydropower station.

[0003] For example, application number CN202322434224.0 provides a safety opening and closing device for a hydropower station gate. The device includes: a gate frame; multiple limiting grooves, all formed on the inner wall of the gate frame; a gate body mounted on the gate frame; multiple limiting plates, all fixedly installed on the gate body, and slidably connected to the inner walls on both sides of the limiting grooves; an opening and closing mechanism located at the top of the gate frame, used to control the opening and closing of the gate body; and a driving mechanism located at the top of the gate frame, used to provide kinetic energy to the opening and closing mechanism. The hydropower station gate safety opening and closing device provided by this utility model has the advantages of automatic lubrication of the wire rope, high safety, and strong practicality.

[0004] In existing hydropower station gate opening and closing mechanisms, steel cable pulley blocks are generally used to realize the gate opening and closing process. Due to the relatively complex transmission structure, the steel cable transmission stroke takes a long time, which affects the stability of the gate operation. Moreover, the gate lacks a reasonable limit control structure, and the opening and closing power system will be subjected to overtravel pressure, which may damage the motor equipment. Utility Model Content

[0005] This disclosure relates to a gate opening and closing mechanism for a hydropower station. A servo motor provides power to drive the rotating shaft to rotate. By using a spur gear and a toothed plate for transmission, the gate body can be adjusted up and down along the guide groove to achieve a rapid opening and closing process. Due to its compact structure and high transmission efficiency, it can complete the opening and closing operation of the gate body in a shorter time, thereby ensuring the safe and stable operation of the hydropower station.

[0006] In the first aspect of the present disclosure, a gate opening and closing mechanism for a hydropower station is provided, specifically including: a gate base, on which a gate frame is provided; a fixed cover is provided at a position near the middle at the rear of the gate frame, and the fixed cover is connected to the gate base; a gate body is provided between two vertical frames of the gate frame; a servo motor is provided on the right side at the rear of the gate base, and the servo motor is located inside the fixed cover; a spline shaft is provided on the left side at the rear of the gate base, and the spline shaft is located inside the fixed cover; a spline sleeve is provided on the spline shaft; a fixed seat is provided to the left of the spline shaft.

[0007] A top frame is provided between the tops of two vertical frames of the gate frame, and guide grooves are provided on the relative inner sides of two vertical frames of the gate frame, and the two guide grooves are distributed symmetrically.

[0008] In at least some embodiments, bearing seats are provided at the rear of two vertical frames of the gate frame, and the two bearing seats are distributed symmetrically, and the bearing seats are located inside the fixed cover, and a ratchet groove is provided on the left bearing seat.

[0009] In at least some embodiments, tooth plates are provided at positions near the left and right ends at the rear of the gate body, and the two tooth plates are distributed symmetrically, guide blocks are provided at the left and right ends of the gate body, and the gate body is slidably connected to the guide grooves of the gate frame through the guide blocks.

[0010] In at least some embodiments, a rotating shaft rod is provided on the servo motor, and the rotating shaft rod is rotatably installed between two bearing seats, and the spline shaft is located at the left end of the rotating shaft rod, two spur gears are provided on the rotating shaft rod, and the spur gears are meshed with the tooth plates.

[0011] In at least some embodiments, a connecting sleeve is provided at the right end of the spline shaft, and the connecting sleeve is connected to the rotating shaft rod, a circular baffle is provided at the left end of the spline shaft, a compression spring is sleeved on the spline shaft, and the compression spring is supported between the circular baffle and the spline sleeve.

[0012] In at least some embodiments, a ratchet gear is provided at the right end of the spline sleeve, and the ratchet gear is matched with the ratchet groove, a rotating groove is provided on the outer peripheral surface of the spline sleeve, an annular frame is sleeved on the spline sleeve, and the annular frame is rotatably connected to the rotating groove through a bearing, two connecting columns are provided on the outer peripheral surface of the annular frame, and the two connecting columns are distributed symmetrically.

[0013] In at least some embodiments, a cylinder is provided at the rear of the fixed seat, and a telescopic rod of the cylinder is provided with an adjusting frame at the right end, the adjusting frame is of a "C" - shaped structure, and the two cross - plates of the adjusting frame are connected to the connecting columns.

[0014] The present utility model provides a gate opening and closing mechanism for a hydropower station, which has the following beneficial effects:

[0015] In this invention, a servo motor provides power to drive the rotating shaft to rotate. By using a spur gear and a toothed plate to mesh and transmit power, the gate body can be adjusted up and down along the guide groove, realizing the rapid opening and closing process of the gate body. Due to its compact structure and high transmission efficiency, the gate body can be opened and closed in a shorter time, thereby ensuring the safe and stable operation of the hydropower station.

[0016] Furthermore, in this invention, the power is provided by a cylinder, and the spline sleeve can be pushed to slide along the spline shaft for adjustment through the cooperation of the adjusting frame and the ring frame. When the ratchet is engaged in the ratchet groove, the spline shaft and the rotating shaft are connected, thereby limiting the rotation shaft. This can accurately control the opening and closing position of the gate body, while reducing the pressure on the servo motor, effectively protecting the opening and closing power system, and improving the reliability of operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0018] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0019] In the attached diagram:

[0020] Figure 1 This shows a schematic diagram of the overall axial view structure of this application;

[0021] Figure 2 This application shows Figure 1 A schematic diagram of the rotating view structure after the removal of the fixing cover;

[0022] Figure 3 A schematic diagram of the gate frame, gate body, and servo motor in an exploded state is shown in this application.

[0023] Figure 4 This invention includes schematic diagrams of the rotating shaft and bearing housing, splined shaft, and fixed base structures.

[0024] Figure 5 This application shows Figure 4 A schematic diagram of the structure in the explosive state.

[0025] List of reference numerals in the attached diagram:

[0026] 1. Gate base; 2. Gate frame; 201. Top frame; 202. Guide groove; 203. Bearing seat; 204. Rattle groove; 3. Fixing cover; 4. Gate body; 401. Tooth plate; 402. Guide block; 5. Servo motor; 501. Rotating shaft; 502. Spur gear; 6. Splined shaft; 601. Connecting sleeve; 602. Circular baffle; 603. Compression spring; 7. Splined sleeve; 701. Rattle gear; 702. Rotating groove; 703. Annular frame; 704. Connecting column; 8. Fixing seat; 801. Cylinder; 802. Adjusting frame. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Example 1: Please refer to Figures 1 to 5 :

[0029] This utility model proposes a gate opening and closing mechanism for a hydropower station, comprising: a gate base 1, a gate frame 2 mounted on the gate base 1; a fixing cover 3 located at the rear center of the gate frame 2, and the fixing cover 3 being connected to the gate base 1; a gate body 4 located between the two vertical supports of the gate frame 2; a servo motor 5 located on the rear right side of the gate base 1, and the servo motor 5 being located inside the fixing cover 3; a spline shaft 6 located on the rear left side of the gate base 1, and the spline shaft 6 being located inside the fixing cover 3; a spline sleeve 7 mounted on the spline shaft 6; and a fixing seat 8 located to the left of the spline shaft 6.

[0030] A top frame 201 is provided between the tops of the two vertical frames of the gate frame 2. Guide grooves 202 are provided on the inner sides of the two vertical frames of the gate frame 2, and the two guide grooves 202 are distributed symmetrically.

[0031] In this embodiment of the disclosure, such as Figure 2 and Figure 3 As shown, the two vertical supports of the gate frame 2 are provided with bearing seats 203 at their rear ends, and the two bearing seats 203 are distributed symmetrically. The bearing seats 203 are located inside the fixed cover 3, and the left bearing seat 203 is provided with a ratchet groove 204.

[0032] The gate body 4 has toothed plates 401 at the rear of the left and right ends, and the two toothed plates 401 are symmetrically distributed. The gate body 4 has guide blocks 402 at the left and right ends, and the gate body 4 is slidably connected to the guide groove 202 of the gate frame 2 through the guide blocks 402.

[0033] A rotating shaft rod 501 is provided on the servo motor 5, and the rotating shaft rod 501 is rotatably installed between two bearing seats 203. The spline shaft 6 is located at the left end of the rotating shaft rod 501. Two spur gears 502 are provided on the rotating shaft rod 501, and the spur gears 502 are meshed and connected with the toothed plate 401. In the present utility model, the servo motor 5 provides power to drive the rotation of the rotating shaft rod 501. By using the meshing transmission between the spur gears 502 and the toothed plate 401, the gate body 4 can be adjusted up and down along the guide groove 202, realizing the rapid opening and closing process of the gate body 4.

[0034] Embodiment 2, on the basis of Embodiment 1, as Figure 4 and Figure 5 shown, a connecting sleeve 601 is provided at the right end of the spline shaft 6, and the connecting sleeve 601 is connected to the rotating shaft rod 501. A circular baffle 602 is provided at the left end of the spline shaft 6. A compression spring 603 is sleeved on the spline shaft 6, and the compression spring 603 is supported between the circular baffle 602 and the spline sleeve 7;

[0035] A ratchet gear 701 is provided at the right end of the spline sleeve 7, and the ratchet gear 701 is matched with the ratchet tooth groove 204. A rotating groove 702 is provided on the outer peripheral surface of the spline sleeve 7. An annular frame 703 is sleeved on the spline sleeve 7, and the annular frame 703 is rotatably connected to the rotating groove 702 through a bearing. Two connecting columns 704 are provided on the outer peripheral surface of the annular frame 703, and the two connecting columns 704 are distributed symmetrically;

[0036] A cylinder 801 is provided at the rear of the fixed seat 8. The right end of the telescopic rod of the cylinder 801 is provided with an adjusting frame 802. The adjusting frame 802 is of a "U" - shaped structure, and the two cross - plates of the adjusting frame 802 are connected to the connecting columns 704. In the present utility model, the cylinder 801 provides power. Through the mutual cooperation of the adjusting frame 802 and the annular frame 703, the spline sleeve 7 can be pushed to slide and adjust along the spline shaft 6. When the ratchet gear 701 is clamped in the ratchet tooth groove 204, since the spline shaft 6 is connected to the rotating shaft rod 501, the rotation of the rotating shaft rod 501 can be limited, and the opening and closing position of the gate body 4 can be accurately controlled.

[0037] The working principle of this embodiment: When in use, the servo motor 5 provides power to drive the rotation of the rotating shaft rod 501. By using the meshing transmission between the spur gears 502 and the toothed plate 401, the gate body 4 can be adjusted up and down along the guide groove 202, realizing the rapid opening and closing process of the gate body 4. The cylinder 801 provides power. Through the mutual cooperation of the adjusting frame 802 and the annular frame 703, the spline sleeve 7 can be pushed to slide and adjust along the spline shaft 6. When the ratchet gear 701 is clamped in the ratchet tooth groove 204, since the spline shaft 6 is connected to the rotating shaft rod 501, the rotation of the rotating shaft rod 501 can be limited, and the opening and closing position of the gate body 4 can be accurately controlled.

[0038] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A gate opening and closing mechanism for a hydropower station, characterized in that, include: A gate base (1) is provided, on which a gate frame (2) is provided; a fixed cover (3) is provided at the middle position of the rear part of the gate frame (2), and the fixed cover (3) is connected to the gate base (1); a gate body (4) is provided between the two vertical frames of the gate frame (2); a servo motor (5) is provided on the right rear part of the gate base (1), and the servo motor (5) is located inside the fixed cover (3); a spline shaft (6) is provided on the left rear part of the gate base (1), and the spline shaft (6) is located inside the fixed cover (3); a spline sleeve (7) is provided on the spline shaft (6); a fixed seat (8) is provided on the left side of the spline shaft (6); A top frame (201) is provided between the tops of the two vertical frames of the gate frame (2), and guide grooves (202) are provided on the inner sides of the two vertical frames of the gate frame (2), and the two guide grooves (202) are distributed symmetrically.

2. The gate opening and closing mechanism for a hydropower station according to claim 1, characterized in that, The gate frame (2) has bearing seats (203) at the rear of the two vertical frames, and the two bearing seats (203) are symmetrically distributed. The bearing seats (203) are located inside the fixed cover (3), and the left bearing seat (203) is provided with a ratchet groove (204).

3. The gate opening and closing mechanism for a hydropower station according to claim 1, characterized in that, The gate body (4) has toothed plates (401) at the left and right ends of the rear part, and the two toothed plates (401) are symmetrically distributed. The gate body (4) has guide blocks (402) at the left and right ends, and the gate body (4) is slidably connected to the guide groove (202) of the gate frame (2) through the guide blocks (402).

4. The gate opening and closing mechanism for a hydropower station according to claim 1, characterized in that, The servo motor (5) is provided with a rotating shaft (501), and the rotating shaft (501) is rotatably installed between two bearing seats (203). The spline shaft (6) is located at the left end of the rotating shaft (501). The rotating shaft (501) is provided with two spur gears (502), and the spur gears (502) are meshed with the gear plate (401).

5. The gate opening and closing mechanism for a hydropower station according to claim 1, characterized in that, The right end of the spline shaft (6) is provided with a connecting sleeve (601), and the connecting sleeve (601) is connected to the rotating shaft (501). The left end of the spline shaft (6) is provided with a circular baffle (602), and a compression spring (603) is fitted on the spline shaft (6), and the compression spring (603) is supported between the circular baffle (602) and the spline sleeve (7).

6. The gate opening and closing mechanism for a hydropower station according to claim 1, characterized in that, The right end of the spline sleeve (7) is provided with a ratchet gear (701), and the ratchet gear (701) is matched with the ratchet groove (204). A rotating groove (702) is provided on the outer peripheral surface of the spline sleeve (7). An annular frame (703) is sleeved on the spline sleeve (7), and the annular frame (703) is rotationally connected to the rotating groove (702) through a bearing. Two connecting columns (704) are provided on the outer peripheral surface of the annular frame (703), and the two connecting columns (704) are symmetrically distributed.

7. The opening and closing mechanism for a hydropower station gate according to claim 1, wherein A cylinder (801) is provided at the rear of the fixed seat (8). The right end of the telescopic rod of the cylinder (801) is provided with an adjusting frame (802). The adjusting frame (802) is of a "C" - shaped structure, and the two cross - plates of the adjusting frame (802) are connected to the connecting columns (704).

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