CN115369808A - A water conservancy and hydropower gate lifting device - Google Patents

Abstract

The invention belongs to the technical field of water conservancy and hydropower, and particularly relates to a water conservancy and hydropower gate lifting device which comprises a dam foundation body, wherein a flood discharge culvert is arranged at the bottom of the dam foundation body, the upper part of the inner opposite side wall of the flood discharge culvert is vertically and slidably connected with a lifting gate, the lower part of the inner opposite side wall of the flood discharge culvert is transversely and slidably connected with two groups of mud discharge gates, the sliding directions of the two groups of mud discharge gates are opposite, the bottom of the lifting gate is arranged corresponding to the tops of the two groups of mud discharge gates, a base is fixedly connected in the dam foundation body, and a traction mechanism for sequentially opening the two groups of mud discharge gates and the lifting gate is connected onto the base; the first driving unit is used for sequentially drawing the two groups of mud discharge gates and the lifting gate, the second driving unit is used for closing the two groups of mud discharge gates, and buffering parts are arranged between the two sides of the lifting gate and the first driving unit respectively. This application can alleviate power equipment's the pressure of pulling, effectively guarantees the life of equipment to carry out the flood discharge in grades, effectively improve the efficiency of mud discharging and drainage.

Description

A water conservancy and hydropower gate lifting device

technical field

The invention belongs to the technical field of water conservancy and hydropower, and in particular relates to a lifting device for a water conservancy and hydropower gate.

Background technique

Water conservancy and hydropower gates are one of the important components of hydraulic structures. They can close the openings of buildings according to needs, and can also open all or part of the openings to adjust the upstream and downstream water levels and flows, so as to obtain flood control and irrigation. , water supply, power generation, navigation, wood and raft and other benefits, can also be used to remove floating objects, sediment, ice, etc., or provide necessary conditions for the maintenance of related buildings and equipment. Gates can be used to intercept water flow, control water level, regulate flow, discharge sediment and floating objects, etc. Gates play a vital role in water conservancy projects, and a lifting device is needed in the gate to control the lifting of the gate. Most of the existing gates are lifting type. When the gate is being pulled upward, the driving motor is under great pressure, which has high requirements on the motor, which brings a lot of inconvenience to operation and maintenance. In order to avoid the above problems, some gates adopt horizontal The way of traction reduces the traction; however, after the horizontal gate is opened, water and sediment are released at the same time. For the situation where only the sediment needs to be cleaned, the flood discharge efficiency is low, and a large amount of stored water will be taken away, making it impossible to achieve accurate flood discharge. Purpose; Therefore, there is an urgent need for a water conservancy and hydropower gate lifting device that can reduce the traction pressure of power equipment, effectively ensure the service life of the equipment, and carry out hierarchical flood discharge, and effectively improve the efficiency of mud discharge and drainage.

Contents of the invention

The object of the present invention is to provide a water conservancy and hydropower gate lifting device to solve the above problems and achieve the purpose of improving flood discharge efficiency.

In order to achieve the above object, the present invention provides the following scheme: a lifting device for water conservancy and hydropower gates, including a dam foundation main body, a flood discharge culvert is opened at the bottom of the dam foundation main body, and the upper part of the inner relative side wall of the flood discharge culvert is vertically slidably connected with a As for the lifting gate, two sets of mud discharge gates are horizontally slidably connected to the lower part of the inner opposite side wall of the flood discharge culvert. Correspondingly arranged, the main body of the dam foundation is fixedly connected with a pedestal, and the pedestal is connected with a traction mechanism that sequentially opens two groups of the mud discharge gates and the lifting gates;

The traction mechanism includes a first drive unit and a second drive unit, the first drive unit is used to sequentially pull the two groups of the mud discharge gate and the lift gate, and the second drive unit is used to close the two For the set of the mud discharge gate, a buffer part is respectively arranged between the two sides of the lift gate and the first driving unit.

Preferably, the first drive unit includes a servo motor fixedly connected above the base, a first reel fixedly connected to the rotation shaft of the servo motor coaxially, and fixedly connected to both sides of the lifting gate. The fixed block on the side top, the two sets of first steel ropes wound on the outside of the first winding wheel, the second steel ropes fixedly connected to the side of the mud discharge gate close to the main body of the dam foundation, and the second steel ropes connected to the An adjustment part between the first steel rope and the second steel rope, the end of the first steel rope away from the first reel passes through the fixing block and is also wound on the adjustment part, The end of the second steel rope far away from the mud discharge gate is wound on the adjustment part, and the middle ends of the two sets of first steel ropes are fixedly connected with driving blocks, and the driving blocks are correspondingly located on the fixed blocks The buffer part is arranged between the driving block and the lifting gate.

Preferably, the second driving unit includes a cavity opened in the main body of the dam foundation, an actuator motor connected to the inner bottom of the cavity, a gear connected in the cavity in rotation, fixedly connected in the row The mud gate is close to the tooth plate on the side of the inner wall of the flood discharge culvert, and the first chute opened on the side wall of the cavity. The actuator motor is connected to the gear through the adjustment part. The top surface of the tooth plate and the mud discharge gate are slidably connected to the bottom surface of the cavity, and the tooth plate is correspondingly arranged and adapted to the first chute.

Preferably, the adjusting part includes a hydraulic cylinder fixedly connected in the cavity, a slide plate slidably connected in the cavity, a second winding wheel and a third winding wheel rotatably connected in the cavity wheel, the drive shaft fixedly connected with the rotating shaft of the actuator motor, the telescopic end of the hydraulic cylinder is fixedly connected to one side of the slide plate, and the slide plate moves along the telescopic direction of the hydraulic cylinder, so The second winding wheel is key-connected to the rotating shaft of the actuator motor, the drive shaft is located on the side of the second winding wheel away from the actuator motor, and the third winding wheel is concentrically located at Between the second reel and the gear, the drive shaft is respectively arranged corresponding to the third reel and the gear and is also adapted, and the end of the first steel rope is far away from the servo motor Wound on the second reel, and the end of the second steel rope away from the mud discharge gate is wound on the third reel.

Preferably, the drive shaft includes a first transmission shaft and a second transmission shaft, the first transmission shaft is fixedly connected with the rotating shaft of the actuator motor, and the second transmission shaft is fixedly connected with the rotation shaft of the actuator. The end of the first transmission shaft far away from the actuator motor, the outer diameter of the first transmission shaft is adapted to the inner diameter of the third winding wheel, the outer diameter of the second transmission shaft is compatible with the inner diameter of the gear matching inside diameter.

Preferably, the buffer part includes a buffer groove horizontally opened on the inner top of the lifting gate, a sliding pin slidably connected in the buffer groove, a spring fixedly connected to the side wall of the buffer groove and one end of the sliding pin , a second chute vertically opened in the fixed block, a fixed pin fixedly connected to the top of the drive block, the end of the sliding pin away from the spring vertically extends into the second chute and also It is set corresponding to the top end of the fixing pin.

Preferably, the top surfaces of the two groups of mud discharge gates are respectively fixedly connected with the limit protrusions along the sliding direction, and the opposite sides of the two groups of the mud discharge gates are respectively provided with the limit protrusions and the limit grooves, so that The position-limiting protrusions are adapted to the position-limiting grooves, and the bottom of the lifting gate is provided with a plurality of position-limiting grooves, and the position-limiting grooves at the bottom of the lifting gate are compatible with the mud discharge gate. The limit protrusions on the top surface of the corresponding set.

Preferably, several pulleys are rotationally connected to the main body of the dam foundation and the cavity, and the first steel rope and the second steel rope respectively go around the corresponding several pulleys.

The present invention has the following technical effects: the main function of the two groups of mud discharge gates is to release the tooth sediment at the bottom of the water, and then open the lifting gate to release water and sediment at the same time. A group of mud discharge gates is enough; the main function of the first drive unit is to open the two sets of mud discharge gates first, and then open the lift gates, the lift gates are closed automatically under the action of gravity, and the two sets of mud discharge gates are closed by the second drive unit; On the one hand, the two groups of mud discharge gates can be opened when only the teeth and sand need to be cleaned, which requires less traction than the vertical one; It can selectively carry out mud discharge or drainage, and achieve higher flood discharge efficiency in the case of saving labor; on the whole, this application can reduce the traction pressure of power equipment, effectively ensure the service life of the equipment, and carry out graded flood discharge, effectively improving Efficiency of sludge and drainage.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is the closed state schematic diagram of flood discharge culvert of the present invention;

Fig. 2 is the structural representation of traction mechanism of the present invention;

Fig. 3 is the schematic diagram of the adjustment part of the present invention;

Fig. 4 is a schematic diagram of the transmission state of the third reel of the present invention;

Fig. 5 is a schematic diagram of the top view state of the mud discharge gate of the present invention;

Among them, 1. The main body of the dam foundation; 2. The mud discharge gate; 3. The lifting gate; 4. The driving block; 5. The first steel rope; 6. The fixed block; 7. The base; 8. The servo motor; Wire wheel; 10, second steel rope; 11, first chute; 12, tooth plate; 13, gear; 14, cavity; 15, fixed pin; 16, spring; 17, sliding pin; 18, second sliding Groove; 19, placement cavity; 20, limit protrusion; 21, hydraulic cylinder; 22, slide plate; 23, executive motor; 24, second winding wheel; 25, first transmission shaft; 26, second transmission shaft; 27, the third winding wheel; 28, the pulley; 29, the flood discharge culvert.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Referring to Figs. 1-5, the present invention provides a lifting device for water conservancy and hydropower gates, comprising a dam foundation main body 1, a flood discharge culvert 29 is opened at the bottom of the dam foundation main body 1, and the upper part of the inner relative side wall of the flood discharge culvert 29 is vertically slidably connected with a The lift gate 3 and the lower part of the inner opposite side wall of the flood discharge culvert 29 are horizontally slidably connected with two sets of mud discharge gates 2. The sliding directions of the two sets of mud discharge gates 2 are opposite, and the bottom of the lift gate 3 corresponds to the top of the two sets of mud discharge gates , the main body 1 of the dam foundation is fixedly connected with a base 7, and the base 7 is connected with a traction mechanism that sequentially opens two sets of mud discharge gates 2 and lifting gates 3;

The traction mechanism includes a first drive unit and a second drive unit. The first drive unit is used to pull two groups of mud discharge gates 2 and lift gates 3 in sequence. The second drive unit is used to close two groups of mud discharge gates 2 and lift gates 3. Buffers are respectively arranged between the two sides and the first driving unit.

The main function of the two sets of mud discharge gates 2 is to release the tooth sediment at the bottom of the water, and then open the lifting gate 3 to release water and sediment at the same time. When there is no need to release water, only two sets of mud discharge gates 2 need to be opened That is, the main function of the first drive unit is to first open two groups of mud discharge gates 2, and then open the lifting gate 3, the lifting gate 3 is automatically closed under the action of gravity, and the two groups of mud discharge gates 2 are closed by the second drive unit; On the one hand, the two groups of mud discharge gates 2 can be opened when only tooth silt needs to be cleaned, which requires less traction than the vertical one; It can selectively carry out mud discharge or drainage, and achieve higher flood discharge efficiency under the condition of saving labor; on the whole, this application can reduce the traction pressure of power equipment, effectively ensure the service life of the equipment, and carry out graded flood discharge. Effectively improve the efficiency of mud discharge and drainage.

In a further optimization scheme, the first drive unit includes a servo motor 8 fixedly connected above the base 7, a first reel 9 fixedly connected to the rotation shaft of the servo motor 8 with the coaxial center, and fixedly connected to the tops on both sides of the lifting gate 3. The fixed block 6, two sets of first steel ropes 5 wound on the outside of the first winding wheel 9, the second steel rope 10 fixedly connected to the side of the mud discharge gate 2 close to the main body 1 of the dam foundation, and the first steel rope connected to the first steel rope 5 and the adjustment part between the second steel rope 10, the end of the first steel rope 5 away from the first reel 9 passes through the fixed block 6 and is also wound on the adjustment part, the second steel rope 10 is far away from the mud discharge gate One end of 2 is wound on the adjustment part, and the middle ends of the two sets of first steel ropes 5 are fixedly connected with the driving block 4, and the driving block 4 is correspondingly located under the fixed block 6, and the buffer part is arranged between the driving block 4 and the lifting gate 3 between.

In the initial state, the lifting gate 3 and the two groups of mud discharge gates 2 are respectively closed; by starting the servo motor 8, the two groups of first steel ropes 5 are driven to wind on the first winding wheel 9 in the same direction respectively, and the first steel ropes 5 drives the driving block 4 to rise vertically, the first steel rope 5 pulls the second steel rope 10 through the adjustment part, and then drives the two groups of mud discharge gates 2 to move away from the side until the driving block 4 is located under the fixed block 6, then , the two groups of mud discharge gates 2 are fully opened, and the first steel rope 5 is separated from the second steel rope 10 through the adjustment part; Alleviate the reaction force of the lifting gate 3 to the servo motor 8, and guarantee the service life of the servo motor 8 to a certain extent; Move up to gradually open the flood discharge culvert 29; when the flood discharge is completed and the flood discharge culvert 29 needs to be closed, the servo motor 8 is started in reverse, and the two groups of first steel ropes 5 are gradually released. The block 4 is separated from the buffer part and the fixed block 6; the second drive unit drives the mud discharge gate 2 to close the bottom of the flood discharge culvert 29 .

In a further optimization scheme, the second drive unit includes a cavity 14 opened in the main body of the dam foundation 1, an actuator motor 23 connected to the inner bottom of the cavity 14, a gear 13 connected to the cavity 14 in rotation, fixedly connected to the mud discharge gate 2 The gear plate 12 close to the inner wall of the flood discharge culvert 29, the first chute 11 set on the side wall of the cavity 14, the actuator motor 23 is connected to the gear 13 through the adjustment part, and the gear 13 is meshed on the top surface of the gear plate 12. The mud discharge gate 2 is slidably connected to the bottom surface of the cavity 14 , and the tooth plate 12 is correspondingly arranged and adapted to the first chute 11 .

When the lifting gate 3 drops to the specified position, the actuator motor 23 is started, and the tooth plate 12 and the mud discharge gate 2 are driven to move through the adjustment part and the gear 13, and the bottom of the flood discharge culvert 29 is closed.

In a further optimization scheme, the adjustment part includes a hydraulic cylinder 21 fixedly connected in the cavity 14, a slide plate 22 slidably connected in the cavity 14, a second winding wheel 24 and a third winding wheel rotatably connected in the cavity 14 27. The drive shaft is fixedly connected with the rotating shaft of the actuator 23. The telescopic end of the hydraulic cylinder 21 is fixedly connected to one side of the slide plate 22. The slide plate 22 moves along the telescopic direction of the hydraulic cylinder 21. The second reel 24 The key is connected on the rotating shaft of the execution motor 23, the drive shaft is located on the side of the second winding wheel 24 away from the execution motor 23, and the third winding wheel 27 is concentrically located between the second winding wheel 24 and the gear 13, The drive shaft is respectively arranged corresponding to the third reel 27 and the gear 13 and is also adapted. The end of the first steel rope 5 away from the servo motor 8 is wound on the second reel 24, and the second steel rope 10 is far away from the row. One end of the mud gate 2 is wound on the third reel 27 .

When the lifting gate 3 rises with the traction of the first steel rope 5, the hydraulic cylinder 21 is in an extended state, pushing the actuator 23 to the state where the drive shaft is engaged with the inner side of the third winding wheel 27, and the first steel rope 5 is continuously drawn. traction, drives the third winding wheel 27 to rotate, draws in the second steel rope 10, at this time the two groups of mud discharge gates 2 move to the side away from, and are gradually opened; when the two groups of mud discharge gates 2 are fully opened, that is, the driving block 4 just Positioned below the fixed block 6, the hydraulic cylinder 21 is reversed and shortened at this time, the second reel 24 breaks away from the third reel 27, does not drive with the third reel 27, and is pulled along with the first steel rope 5 The servo motor 8 pulls, and the second reel 24 begins to release the first steel rope 5. At this time, the actuator 23 is not started and runs idly; when the lifting gate 3 begins to descend according to gravity, the servo motor 8 reverses, and the first steel rope 5 is released. At this time, the gear 13 is not driven, and the hydraulic cylinder 21 is in a contracted state. At this time, the actuator 23 drives the second reel 24 to rotate, that is, the first steel rope 5 is gathered, and when the first steel rope 5 is drawn to the drive block 4 is just below the fixed block 6, breaks away from the buffer, and the actuator 23 is turned off. At this time, the hydraulic cylinder 21 is started and extended until the drive shaft meshes with the third winding wheel 27 and the inside of the gear 13 at the same time, and the actuator 23 is started. The driving gear 13 meshes with the tooth plate 12, and drives the two sets of mud discharge gates 2 to move in the opposite direction. At the same time, the third winding wheel 27 releases the second steel rope 10. At this time, the driving block 4 continues to move down under the action of gravity. While the third winding wheel 27 releases the second steel rope 10 , the second winding wheel 24 gathers the first steel rope 5 .

In a further optimization solution, the drive shaft includes a first transmission shaft 25 and a second transmission shaft 26. The first transmission shaft 25 is fixedly connected to the rotating shaft of the actuator 23, and the second transmission shaft 26 is fixedly connected to the first transmission shaft. The shaft 25 is away from the end of the actuator motor 23 , the outer diameter of the first transmission shaft 25 is adapted to the inner diameter of the third winding wheel 27 , and the outer diameter of the second transmission shaft 26 is adapted to the inner diameter of the gear 13 .

The second transmission shaft 26 passes through the third winding wheel 27 and engages, and the second transmission shaft 26 penetrates into the gear 13 and engages.

To further optimize the scheme, the buffer part includes a buffer groove horizontally set on the inside top of the lifting gate 3, a sliding pin 17 slidably connected in the buffer groove, a spring 16 fixedly connected to the side wall of the buffer groove and one end of the sliding pin 17, and a The second chute 18 in the fixed block 6 and the fixed pin 15 fixedly connected to the top of the drive block 4, the end of the sliding pin 17 away from the spring 16 vertically extends into the second chute 18 and is also set corresponding to the top of the fixed pin 15 .

In the initial state, the spring 16 is in a free state. When the driving block 4 moves up, the tapered surface at the top of the fixed pin 15 pushes the tapered surface at one end of the sliding pin 17, pushing the sliding pin 17 to overcome the elastic force of the spring 16, and the spring 16 is compressed. During the compression process, the lifting gate 3 bears part of the upward traction force of the driving block 4 , and the driving block 4 overcomes part of the gravity of the lifting gate 3 , which can effectively reduce the operating pressure of the servo motor 8 .

To further optimize the scheme, the top surfaces of the two groups of mud discharge gates 2 are respectively fixedly connected with the limit protrusions 20 along the sliding direction, and the opposite sides of the two groups of mud discharge gates 2 are respectively provided with limit protrusions 20 and limit grooves, and the limit protrusions 20 is compatible with the limit groove, and the bottom of the lift gate 3 is provided with some limit grooves, and the limit groove at the bottom of the lift gate 3 is correspondingly arranged with the limit protrusion 20 on the top surface of the mud discharge gate 2.

In a further optimized solution, several pulleys 28 are rotatably connected to the main body 1 of the dam foundation and the cavity 14 , and the first steel rope 5 and the second steel rope 10 respectively bypass the corresponding several pulleys 28 .

In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientations or positional relationships indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or It should not be construed as limiting the invention by implying that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation.

The above-mentioned embodiments are only to describe the preferred mode of the present invention, not to limit the scope of the present invention. Without departing from the design spirit of the present invention, those skilled in the art may make various Variations and improvements should fall within the scope of protection defined by the claims of the present invention.

Claims (8)

1. A water conservancy and hydropower gate lifting device, comprising a dam foundation main body (1), the bottom of the dam foundation main body (1) is provided with a flood discharge culvert (29), it is characterized in that: the inner relative side walls of the described flood discharge culvert (29) The upper part is vertically slidably connected with lift gates (3), and the lower part of the inner opposite side wall of the flood discharge culvert (29) is horizontally slidably connected with two groups of mud discharge gates (2), and the sliding direction of the two groups of mud discharge gates (2) is On the contrary, the bottoms of the lifting gates (3) are set corresponding to the tops of the two groups of mud discharge gates (2), and a base (7) is fixedly connected to the main body of the dam foundation (1), and the base (7) ) is connected with a traction mechanism that sequentially opens two groups of the mud discharge gates (2) and the lift gates (3); The traction mechanism includes a first drive unit and a second drive unit, the first drive unit is used to sequentially pull the two groups of the mud discharge gate (2) and the lift gate (3), the second The drive unit is used to close two groups of the mud discharge gates (2), and buffer parts are respectively arranged between the two sides of the lift gate (3) and the first drive unit. 2. The lifting device for water conservancy and hydropower gates according to claim 1, characterized in that: the first drive unit includes a servo motor (8) fixedly connected above the base (7), and a coaxial center fixedly connected to The first winding wheel (9) on the rotating shaft of the servo motor (8), the fixed block (6) fixedly connected to the top of both sides of the lift gate (3), and the first winding wheel (9) The two sets of first steel ropes (5) on the outside, the second steel rope (10) fixedly connected to the side of the mud discharge gate (2) close to the main body (1) of the dam foundation, and the second steel rope (10) connected to the first An adjustment part between a steel rope (5) and the second steel rope (10), the end of the first steel rope (5) away from the first reel (9) passes through the fixing block (6) and is also wound on the adjustment part, the end of the second steel rope (10) away from the mud discharge gate (2) is wound on the adjustment part, two sets of the first steel rope The middle end of the rope (5) is fixedly connected with a drive block (4), and the drive block (4) is correspondingly located below the fixed block (6), and the buffer part is arranged between the drive block (4) and the Between the lifting gates (3). 3. The lifting device for water conservancy and hydropower gates according to claim 2, characterized in that: the second drive unit includes a cavity (14) opened in the main body (1) of the dam foundation, connected to the cavity ( 14) The actuator motor (23) at the inner bottom, the gear (13) connected in rotation in the cavity (14), and fixedly connected to the side of the inner wall of the mud discharge gate (2) close to the flood discharge culvert (29) The tooth plate (12), the first chute (11) opened on the side wall of the cavity (14), the actuator motor (23) is connected to the gear (13) through the adjustment part, The gear (13) is engaged on the top surface of the tooth plate (12), the mud discharge gate (2) is slidingly connected to the bottom surface of the cavity (14), and the tooth plate (12) is connected to the The first chute (11) is correspondingly arranged and adapted. 4. The lifting device for water conservancy and hydropower gates according to claim 3, characterized in that: the adjustment part includes a hydraulic cylinder (21) fixedly connected in the cavity (14), a hydraulic cylinder (21) slidably connected in the cavity ( 14), the slide plate (22) in the cavity (14), the second winding wheel (24) and the third winding wheel (27) that are rotatably connected in the cavity (14), and the rotating shaft of the actuator motor (23) A drive shaft fixedly connected to the center of the axis, the telescopic end of the hydraulic cylinder (21) is fixedly connected to one side of the slide plate (22), and the slide plate (22) moves along the telescopic direction of the hydraulic cylinder (21) , the second winding wheel (24) is keyed to the rotating shaft of the executing motor (23), and the driving shaft is located at the side of the second winding wheel (24) away from the implementing motor (23) On one side, the third winding wheel (27) is coaxially located between the second winding wheel (24) and the gear (13), and the drive shaft is connected to the third winding wheel respectively. (27), the gear (13) is correspondingly arranged and also adapted, and the end of the first steel rope (5) away from the servo motor (8) is wound on the second reel (24), The end of the second steel rope (10) away from the mud discharge gate (2) is wound on the third winding wheel (27). 5. The lifting device for water conservancy and hydropower gates according to claim 4, characterized in that: the drive shaft includes a first transmission shaft (25) and a second transmission shaft (26), the first transmission shaft (25) and the The rotating shaft of the actuator motor (23) is fixedly connected with the axis, and the second transmission shaft (26) is fixedly connected with the axis at the end of the first transmission shaft (25) away from the actuator motor (23), The outer diameter of the first transmission shaft (25) is adapted to the inner diameter of the third winding wheel (27), the outer diameter of the second transmission shaft (26) is compatible with the inner diameter of the gear (13) match. 6. The lifting device for water conservancy and hydropower gates according to claim 2, characterized in that: the buffer part includes a buffer groove horizontally opened on the inner top of the lift gate (3), and a sliding door slidingly connected in the buffer groove. pin (17), a spring (16) fixedly connected to the side wall of the buffer tank and one end of the sliding pin (17), a second chute (18) vertically provided in the fixed block (6), Fixedly connected to the fixed pin (15) on the top of the drive block (4), the end of the sliding pin (17) away from the spring (16) vertically extends into the second chute (18) and is also connected to the The top ends of the fixing pins (15) are arranged correspondingly. 7. The lifting device for water conservancy and hydropower gates according to claim 2, characterized in that: the top surfaces of the two groups of mud discharge gates (2) are respectively fixedly connected with the limit projections (20) along the sliding direction, and the two groups of The opposite sides of the mud discharge gate (2) are respectively provided with the limit protrusion (20) and the limit groove, the limit protrusion (20) is adapted to the limit groove, and the lift The bottom of the gate (3) is provided with several limit grooves, the limit grooves at the bottom of the lifting gate (3) and the limit protrusions on the top surface of the mud discharge gate (2) (20) Corresponding settings. 8. The lifting device for water conservancy and hydropower gates according to claim 3, characterized in that: the main body (1) of the dam foundation and the cavity (14) are respectively rotatably connected with several pulleys (28), and the first steel The rope (5) and the second steel rope (10) respectively go around the corresponding several pulleys (28).

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