CN220644143U

CN220644143U - Buffer gear and power station access door

Info

Publication number: CN220644143U
Application number: CN202321874286.7U
Authority: CN
Inventors: 张伟; 赵勇; 何延; 张晓勇
Original assignee: Three Gorges Jinsha River Yunchuan Hydropower Development Co ltd
Current assignee: Three Gorges Jinsha River Yunchuan Hydropower Development Co ltd
Priority date: 2023-07-17
Filing date: 2023-07-17
Publication date: 2024-03-22
Anticipated expiration: 2033-07-17

Abstract

The utility model relates to the technical field of buffer mechanisms and hydropower station access doors, in particular to a buffer mechanism and hydropower station access door. This power station access door is through setting up buffer unit in one side of access door body, when river impacted, river promoted drive division and removed, and the stripper plate begins to promote first atress spare and second atress spare activity, and first atress spare rises the in-process and receives the resistance of heavy ball, and the second atress spare receives the buoyancy of floater at the submergence in-process to make drive division in the sliding in-process, continuously receive the resistance that restraines its removal, effectively cuts down the impulsive force of river, finally realizes playing the purpose of effective buffering to the access door body.

Description

Buffer gear and power station access door

Technical Field

The utility model relates to the technical field of buffer mechanisms and hydropower station access doors.

Background

Hydropower plants, collectively known as hydroelectric power plants, are plants that convert potential and kinetic energy of water into electrical energy. The basic production process is as follows: the water is guided from the river height or other reservoirs, the hydraulic turbine is driven to rotate by the pressure or flow velocity of the water, gravitational potential energy and kinetic energy are converted into mechanical energy, and then the hydraulic turbine drives the generator to rotate, so that the mechanical energy is converted into electric energy. The power station generally mainly comprises four parts of a water retaining building, a flood discharging building, a water diversion building and a power station factory building. In the daily operation of the water conservancy pump station, the process of opening the overhaul gate, placing the trash rack below the overhaul gate is a process necessary before the unit operates, the process of calling out the trash rack, and the process of placing the overhaul gate at the bottom is a process necessary before the unit overhauls.

At present, one side of a gate of a hydropower station is impacted by river water for a long time, and the damage to an access door is more and more serious all the year round, so that the service life of the access door is reduced, the traditional mode is a hard metal reinforced gate, however, the mode cannot provide good buffering force for the access door, and the achieved protection effect is poor; moreover, the traditional access door is provided with a plurality of lifting points on the access door in the lifting process, so that the access door needs to be lifted by means of a plurality of cranes, and a large amount of material resources are wasted.

Thus, there is a need for a buffer mechanism and hydropower station access door.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the utility model, which should not be used to limit the scope of the utility model.

The utility model is provided in view of the problem that the hydropower station access door is easily damaged due to long-term river impact and the problem that manpower and material resources are wasted by means of a plurality of cranes for hoisting each time.

It is therefore one of the objects of the present utility model to provide a cushioning mechanism.

In order to solve the technical problems, the utility model provides the following technical scheme: the buffer mechanism comprises a mounting assembly, a plurality of transverse pipes and a vertical pipe, wherein the mounting assembly comprises a mounting plate, the transverse pipes are arranged on the mounting plate, the vertical pipes are arranged on the transverse pipes, the transverse pipes and the vertical pipes are mutually perpendicular and cross-connected, and the inside of the transverse pipes and the vertical pipes are mutually communicated; the method comprises the steps of,

the buffer assembly comprises a plurality of driving parts arranged in the transverse tube and damping parts arranged on two sides of the driving parts and positioned in the vertical tube.

As a preferred embodiment of the buffer mechanism of the present utility model, wherein: the driving part comprises a movable part, one side of the movable part is fixedly connected with a push rod, and one end of the push rod is fixedly connected with an extrusion plate.

As a preferred embodiment of the buffer mechanism of the present utility model, wherein: the movable piece is provided with a plurality of water permeable holes positioned at the periphery of the ejector rod, and the outer end of the movable piece is connected with the inner part of the transverse tube in a sliding manner.

As a preferred embodiment of the buffer mechanism of the present utility model, wherein: the damping part comprises a first stress piece and a second stress piece, wherein the top of the first stress piece is fixedly connected with a heavy ball, the bottom of the second stress piece is fixedly connected with a floating ball, one sides of the first stress piece and the second stress piece, which are close to the driving part, are provided with inclined planes, and the first stress piece and the second stress piece are in an up-down symmetrical structure.

As a preferred embodiment of the buffer mechanism of the present utility model, wherein: the first stress piece and the second stress piece are in cone structures, and are made of light metal materials.

As a preferred embodiment of the buffer mechanism of the present utility model, wherein: the mounting plate comprises a pair of shock-absorbing plates and two pairs of elastic belts, the periphery of each shock-absorbing plate is fixedly connected with the corresponding elastic belt, an elastic rod is fixedly connected between the corresponding shock-absorbing plates, and liquid is filled in the mounting plate.

As a preferred embodiment of the buffer mechanism of the present utility model, wherein: one end of the transverse tube extends to be close to the inner part of the damping plate of the transverse tube, and the inner part of the transverse tube is communicated with the inner cavity of the mounting plate.

The buffer mechanism has the beneficial effects that: when river water is impacted, the river water pushes the driving part to move, the extruding plate starts to push the first stress piece and the second stress piece to move, the first stress piece is subjected to the resistance of the heavy ball in the ascending process, and the second stress piece is subjected to the buoyancy of the floating ball in the submergence process, so that the driving part is continuously subjected to the resistance for inhibiting the movement of the driving part in the sliding process, and the aim of effectively buffering the impact force of the river water is finally realized.

Another object of the present utility model is to provide a hydropower station access door comprising a buffer mechanism as described above; and the lifting mechanism comprises a steel rope, a cross beam, an access door body and a door machine lifting machine, wherein the output end of the door machine lifting machine is connected with the top of the cross beam through a lifting hook, the bottom of the cross beam is fixedly connected with a plurality of pairs of lifting lug plates, rope penetrating holes are formed in the lifting lug plates, and the lifting lug plates are connected with the access door body through the steel rope.

As a preferred embodiment of the hydropower station access door according to the utility model, wherein: the top of access door body is equipped with the hoisting point that corresponds the lug board in advance, the both ends of steel cable pass rope hole and hoisting point respectively.

The hydropower station access door has the beneficial effects that: through setting up crossbeam, lug board and a plurality of steel cable, only need utilize a door machine to play the machine and just can promote and descend the access door to saved manpower and materials resource, reduced working cost, also need not a plurality of door machine to play the machine and play and cooperate simultaneously, improved and lifted by crane efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

fig. 1 is a schematic view of a mounting unit structure of a buffer mechanism according to the present utility model.

Fig. 2 is a schematic view of the internal structure of a mounting unit of a buffer mechanism according to the present utility model.

Fig. 3 is a schematic view of the internal structure of a mounting plate of a buffer mechanism according to the present utility model.

Fig. 4 is an enlarged view of the buffer mechanism of fig. 3A according to the present utility model.

Fig. 5 is a schematic view of the overall structure of an access door for a hydropower station according to the utility model.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Further, in describing the embodiments of the present utility model in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present utility model. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.

Example 1

Referring to fig. 1, in a first embodiment of the present utility model, there is provided a buffer mechanism, which includes a mounting assembly 100, including a mounting plate 101, a plurality of transverse pipes 102 disposed on the mounting plate 101, and a vertical pipe 103 disposed on the transverse pipes, wherein the transverse pipes 102 and the vertical pipe 103 are vertically and cross-connected with each other, and are mutually communicated with each other; the method comprises the steps of,

the cross connection between a plurality of horizontal pipes 102 and a vertical pipe 103 is in an intercommunication state, after river water enters the horizontal pipe 102, part of river water enters the next horizontal pipe 102, and the rest part enters the vertical pipe 103.

Referring to fig. 2, the buffer assembly 200 includes a plurality of driving parts 201 disposed inside the cross tube 102, and shock absorbing parts 202 disposed at both sides of the driving parts 201 and located in the vertical tube.

The driving part 201 comprises a movable part 201a, one side of the movable part 201a is fixedly connected with a push rod 201b, and one end of the push rod 201b is fixedly connected with a squeeze plate 201c.

The movable member 201a slides on the inner wall of the cross tube 102 and the squeeze plate 201c slides inside the standpipe 103.

The movable piece 201a is provided with a plurality of water permeable holes at the periphery of the ejector rod 201b, and the outer end of the movable piece 201a is connected with the inside of the transverse tube 102 in a sliding manner.

The shock absorbing portion 202 includes a first stress member 202a and a second stress member 202b, the top of the first stress member 202a is fixedly connected with a heavy ball 202c, the bottom of the second stress member 202b is fixedly connected with a floating ball 202d, one side of the first stress member 202a and one side of the second stress member 202b, which are close to the driving portion 201, are provided with inclined planes, and the first stress member 202a and the second stress member 202b are in an up-down symmetrical structure.

Since the inclined surfaces are formed on one sides of the first stress piece 202a and the second stress piece 202b, the impact force of the river water is effectively converted into the driving force for pushing the heavy ball 202c and the floating ball 202d to move by being extruded by the extrusion plate 201c.

Further, compared to embodiment 1, the first stress member 202a and the second stress member 202b are in a cone structure, and the first stress member 202a and the second stress member 202b are made of light metal materials.

In the use process, a plurality of cross pipes 102 and vertical pipes 103 which are in cross connection are arranged on one side of the mounting plate 101, when river water impacts, the river water pushes the driving part 201 to move, the extrusion plate 201c starts to push the first stress piece 202a and the second stress piece 202b to move, the top of the first stress piece 202a is provided with a heavy ball 202c, the first stress piece 202a receives resistance of the heavy ball 202c in the ascending process, and the bottom of the second stress piece 202b is provided with a floating ball 202d, so that the second stress piece 202b receives buoyancy of the floating ball 202d in the submerging process, and the driving part 201 continuously receives resistance for inhibiting movement of the second stress piece 202b in the sliding process, and finally effective reduction of impact force of the river water is realized.

After each river impact, the gravity ball 202c will start to descend to the original position under the action of gravity, and the floating ball 202d will also rise to the original position under the action of the floating force, so that the river impact is facilitated to continue to be buffered.

By providing a plurality of buffer assemblies 200 on the same cross tube 102, the bottom river water layer by layer is cut down.

Wherein, the heavy ball 202c is made of one of iron or iron alloy materials, and the floating ball 202d is made of light material and is hollow.

Optimally, the materials can be selected to ensure that the weight of ball 202c (the downward force after counteracting the buoyancy) is as equal as possible to the buoyancy of ball 202d (the upward force after counteracting the self-weight).

Example 2

Referring to fig. 3-4, a second embodiment of the present utility model is shown, which differs from the first embodiment in that: the mounting plate 101 comprises a pair of shock absorbing plates and two pairs of elastic belts 101a, the peripheries of the shock absorbing plates are fixedly connected through the elastic belts 101a, an elastic rod 101b is fixedly connected between the shock absorbing plates, and liquid is filled in the mounting plate 101.

In the use process, one ends of the plurality of transverse pipes 102, which are in contact with one side of the mounting plate 101, are closed, when river water passes through the plurality of buffer assemblies 200 and is cut down layer by layer to arrive at the mounting plate 101, the damping plates are extruded and pushed to move, and the damping plates sequentially extrude the elastic rods 101b and the liquid, so that the resistance provided for the impact of the river water is improved, and the purpose of weakening the impact of the river water is further realized.

The rest of the structure is the same as that of embodiment 1.

Example 3

Referring to fig. 1, a third embodiment of the present utility model is shown, which differs from the second embodiment in that:

further, compared to embodiment 2, one end of the cross tube 102 extends to the inside near the damper plate thereof, and the inside of the cross tube 102 communicates with the inner cavity of the mounting plate 101.

In the use process, the same as the above embodiment, the river water is cut down layer by layer through the plurality of buffer assemblies 200 to come to the mounting plate 101, then the river water enters the mounting plate 101, the inside of the mounting plate 101 can be directly filled with the river water, after the river water enters the inside of the mounting plate 101, the inside of the mounting plate 101 is extruded to deform, on the one hand, the elastic belt 101a is extruded, and on the other hand, the elastic rod 101b is extended, so that the kinetic energy in the direction far away from the mounting plate 101 is provided for the plurality of horizontal pipes 102, the vertical pipes 103 and the buffer assemblies 200 in the vertical pipes, and the kinetic energy of the river water is reduced, and the purpose of repeatedly reducing the kinetic energy of the river water is achieved by repeatedly shaking the horizontal pipes 102, the vertical pipes 103 and the buffer assemblies 200 in the vertical pipes.

Referring to fig. 5, a hydropower station access door comprises a lifting mechanism 300, wherein the lifting mechanism 300 comprises a steel rope 301, a cross beam 302, an access door body 304 and a door machine lifting machine 303, the output end of the door machine lifting machine 303 is connected with the top of the cross beam 302 through a lifting hook, and a lifting lug plate 305 is connected with the access door body 304 through the steel rope 301.

The bottom of the beam 302 is fixedly connected with a plurality of pairs of lifting lug plates 305, and rope penetrating holes are formed in the lifting lug plates 305.

The top of the access door body 304 is pre-provided with a lifting point corresponding to the lifting lug plate 305, and two ends of the steel rope 301 respectively penetrate through the rope threading holes and the lifting point.

Referring to fig. 5, the cross beam 302 and the plurality of steel ropes 301 are utilized to facilitate the traction of the access door body 304, and the door lifting machine 303 is started, so that the purpose of lifting the access door body 304 up and down can be achieved.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims

1. A buffer mechanism, characterized in that: comprising the steps of (a) a step of,

the mounting assembly (100) comprises a mounting plate (101), a plurality of transverse pipes (102) arranged on the mounting plate (101) and a vertical pipe (103) arranged on the transverse pipes, wherein the transverse pipes (102) and the vertical pipe (103) are mutually vertically and cross-connected and are mutually communicated; the method comprises the steps of,

the buffer assembly (200) comprises a plurality of driving parts (201) arranged in the transverse tube (102) and damping parts (202) arranged on two sides of the driving parts (201) and positioned in the vertical tube.

2. The cushioning mechanism of claim 1, wherein: the driving part (201) comprises a movable part (201 a), one side of the movable part (201 a) is fixedly connected with a push rod (201 b), and one end of the push rod (201 b) is fixedly connected with an extrusion plate (201 c).

3. The cushioning mechanism of claim 2, wherein: the movable piece (201 a) is provided with a plurality of water permeable holes positioned at the periphery of the ejector rod (201 b), and the outer end of the movable piece (201 a) is connected with the inside of the transverse tube (102) in a sliding manner.

4. A cushioning mechanism according to claim 3, wherein: the damping part (202) comprises a first stress piece (202 a) and a second stress piece (202 b), wherein a heavy ball (202 c) is fixedly connected to the top of the first stress piece (202 a), a floating ball (202 d) is fixedly connected to the bottom of the second stress piece (202 b), inclined planes are formed in one sides, close to the driving part (201), of the first stress piece (202 a) and the second stress piece (202 b), and the first stress piece (202 a) and the second stress piece (202 b) are in an up-down symmetrical structure.

5. The cushioning mechanism of claim 4, wherein: the first stress piece (202 a) and the second stress piece (202 b) are in cone structures, and the first stress piece (202 a) and the second stress piece (202 b) are made of light metal materials.

6. The cushioning mechanism of claim 5, wherein: the mounting plate (101) comprises a pair of shock absorption plates and two pairs of elastic belts (101 a), the peripheries of the shock absorption plates are fixedly connected through the elastic belts (101 a), an elastic rod (101 b) is fixedly connected between the shock absorption plates, and liquid is filled in the mounting plate (101).

7. The cushioning mechanism of claim 6, wherein: one end of the transverse tube (102) extends to be close to the inner part of the shock absorbing plate, and the inner part of the transverse tube (102) is communicated with the inner cavity of the mounting plate (101).

8. A hydropower station access door, characterized in that: comprising a buffer mechanism according to any one of claims 1 to 7, and,

including hoist mechanism (300), hoist mechanism (300) include wire rope (301) and crossbeam (302), access door body (304) and door machine lift (303), the output of door machine lift (303) is connected through the top of lifting hook with crossbeam (302), the bottom fixedly connected with of crossbeam (302) is to lug board (305), the rope hole has been seted up on lug board (305), be connected through wire rope (301) between lug board (305) and the access door body (304).

9. The hydropower station access door according to claim 8, wherein: the top of access door body (304) is equipped with the hoisting point that corresponds lug board (305) in advance, the both ends of steel cable (301) pass rope hole and hoisting point respectively.