CN220352752U

CN220352752U - Large-tonnage hydropower station headstock gear

Info

Publication number: CN220352752U
Application number: CN202323450240.5U
Authority: CN
Inventors: 张利杰; 李康; 侯典兵
Original assignee: Henan Huapu Heavy Intelligent Machinery Co ltd
Current assignee: Henan Huapu Heavy Intelligent Machinery Co ltd
Priority date: 2023-12-18
Filing date: 2023-12-18
Publication date: 2024-01-16
Anticipated expiration: 2033-12-18

Abstract

The utility model provides a large-tonnage hydropower station hoist which comprises a base, a winding drum and a winding drum driving mechanism, wherein the winding drum and the winding drum driving mechanism are arranged on the base, the winding drum is connected with a gate connecting piece through a steel wire rope, 2N-1 fixed pulleys are arranged on the base, the gate connecting piece is connected with 2N movable pulleys, and N is a positive integer greater than or equal to 2; the wire rope led out from the winding drum sequentially winds around one movable pulley and then one fixed pulley until all the fixed pulleys and the movable pulleys. The large-tonnage hydropower station hoist is convenient to use for opening and closing the large-tonnage hydropower station gate by arranging a plurality of groups of fixed pulleys and a plurality of groups of movable pulleys which are mutually matched, so that the weight born by a single steel wire rope is reduced.

Description

Large-tonnage hydropower station headstock gear

Technical Field

The utility model relates to hydropower station gate opening and closing equipment, in particular to a large-tonnage hydropower station headstock gear.

Background

Hydropower station gate usually needs headstock gear as the power supply cooperation just can accomplish to open and close in the lift in-process that opens and shuts, and current hydropower station gate headstock gear type is many, for example: hoist headstock gear, screw headstock gear, hydraulic headstock gear, etc.. A hoist is a common hoisting device, and in order to facilitate the use of a hydropower station, people have modified conventional hoisting devices to a certain extent, for example: the steel wire rope winding and unwinding device of the winch type hoist of the hydropower station disclosed in China patent CN207645684U, the winch type single-hoisting-point gate hoist of the hydropower station disclosed in China patent CN210766666U and the like, but if the winch is used as the hoist of a large-tonnage hydropower station, the steel wire rope not only bears the weight of a valve, but also can bear the impact force of water flow, and the application requirements of the large-tonnage hydropower station are hardly met by the conventional cooperation of the steel wire rope and a pulley block.

In order to solve the above problems, an ideal technical solution is always sought.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art, thereby providing a large-tonnage hydropower station hoist.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the large-tonnage hydropower station hoist comprises a base, a winding drum and a winding drum driving mechanism, wherein the winding drum and the winding drum driving mechanism are arranged on the base, the winding drum is connected with a gate connecting piece through a steel wire rope, 2N-1 fixed pulleys are arranged on the base, and the gate connecting piece is connected with 2N movable pulleys, wherein N is a positive integer greater than or equal to 2; the wire rope led out from the winding drum sequentially winds around one movable pulley and then one fixed pulley until all the fixed pulleys and the movable pulleys.

One fixed pulley is a first fixed pulley, the other fixed pulleys are second fixed pulleys, the second fixed pulleys are coaxially arranged in a row, the central shaft of each second fixed pulley is parallel to the central shaft of the winding drum, the first fixed pulley is positioned on the central line of the base, the central shaft of the first fixed pulley is perpendicular to the central shaft of the winding drum, the second fixed pulleys are divided into two groups with the same number, and the two groups of fixed pulleys are respectively positioned on two sides of the first fixed pulley.

The first fixed pulley is near the edge of the base, and the second fixed pulley is positioned between the winding drum and the first fixed pulley.

Each movable pulley is coaxially arranged in a row, and the central shaft of the movable pulley is parallel to the central shaft of the winding drum; the movable pulleys are divided into two groups with the same number, and the two groups of movable pulleys correspond to the two groups of second fixed pulleys.

The winding drum is a duplex winding drum, one side of the steel wire rope driven pulley led out from one side of the winding drum, which is far away from the base, is led in, and the other side of the winding drum, which is led out from the other side of the winding drum, is led in from one side of the steel wire rope driven pulley, which is close to the base.

The base includes front beam and back beam, connects through a plurality of parallel longerons between front beam and the back beam, connects through first short beam between two longerons near the base middle part, and first short beam is parallel with the front beam, and the second fixed pulley is installed on first short beam.

The first short beam is connected with the front beam through a second short beam, the second short beam is perpendicular to the front beam, and the first fixed pulley is arranged on the second short beam.

Two groups of supporting plates are arranged on the gate connecting piece, a pulley mounting frame is arranged on the two groups of supporting plates, and a movable pulley is arranged on the pulley mounting frame.

The pulley mounting bracket includes the shell, and the movable pulley is installed in the inside of shell, and the upper portion of shell sets up the bar through-hole, and wire rope passes in the bar hole.

Compared with the prior art, the large-tonnage hydropower station gate hoist has the beneficial effects that the large-tonnage hydropower station gate hoist is convenient to use for opening and closing by arranging the plurality of groups of fixed pulleys and the plurality of groups of movable pulleys, and the fixed pulleys and the movable pulleys are mutually matched, so that the weight born by a single steel wire rope is reduced. Meanwhile, the fixed pulley also plays a role in guiding the steel wire rope, so that the steel wire rope is conveniently led out from the outer side of the base. Preferably, two fixed pulleys with different directions are arranged, so that the stress is more balanced, and the stability of the lifting structure is improved.

Drawings

Fig. 1 is a schematic top view of the present utility model.

Fig. 2 is a schematic elevational view of the present utility model.

Fig. 3 is a schematic drawing of a roping of a steel cord according to the utility model.

In the figure: 1. a front beam; 2. a rear beam; 3. a longitudinal beam; 4. a first short beam; 5. a second short beam; 6. a duplex reel; 7. a spool drive mechanism; 8. a second fixed pulley; 9. a first fixed pulley; 10. a gate connector; 11. a support plate; 12. a housing; 13. a bar-shaped through hole; 14. a movable pulley.

Detailed Description

The technical scheme of the utility model is further described in detail through the following specific embodiments.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. "mounting", "providing", "connecting" etc. may be by means conventional in the art, for example: integral arrangement, clamping installation, welding connection, bonding connection, bolt connection and the like. The specific meaning of the terms in the present utility model will be understood by those skilled in the art in specific cases, and suitable connection, arrangement or installation means will be selected in the prior art.

1-3, a large-tonnage hydropower station hoist comprises a base, a winding drum and a winding drum driving mechanism 7 which are arranged on the base, wherein the winding drum is connected with a gate connecting piece 10 through a steel wire rope, 2N-1 fixed pulleys are arranged on the base, and the gate connecting piece 10 is connected with 2N movable pulleys 14, wherein N is a positive integer greater than or equal to 2; the wire rope led from the reel is wound around one movable pulley 14 in turn around one fixed pulley until all the fixed pulleys and the movable pulleys 14 are wound around. Specifically, in this embodiment, 7 fixed pulleys are provided, and 8 movable pulleys are provided. The gate connecting piece can be connected with a gate or other common gate connecting structures by adopting a conventional through-out shaft and lifting lug in the prior art, such as an automatic grabbing beam of a hydropower station hoist disclosed in CN 219175165U.

The large-tonnage hydropower station hoist is convenient to use for opening and closing the large-tonnage hydropower station gate by arranging a plurality of groups of fixed pulleys and a plurality of groups of movable pulleys which are mutually matched, so that the weight born by a single steel wire rope is reduced. Meanwhile, the fixed pulley also plays a role in guiding the steel wire rope, so that the steel wire rope is conveniently led out from the outer side of the base.

In one embodiment, one fixed pulley is a first fixed pulley 9, the other fixed pulleys are second fixed pulleys 8, the second fixed pulleys 8 are coaxially arranged in a row, the central axis of the second fixed pulleys 8 is parallel to the central axis of the winding drum, the first fixed pulleys 9 are positioned on the central line of the base, the central axis of the first fixed pulleys 9 is perpendicular to the central axis of the winding drum, the second fixed pulleys 8 are divided into two groups with equal numbers, and the two groups of fixed pulleys are respectively positioned on two sides of the first fixed pulleys 9. Through setting up the fixed pulley that two kinds of directions are different for the atress is balanced more, improves the stability that plays to rise the structure.

In one embodiment, the first fixed pulley 9 is near the edge of the base, and the second fixed pulley 8 is located between the drum and the first fixed pulley 9, facilitating the roping of the wire rope.

In one embodiment, each of the movable pulleys 14 is coaxially arranged in a row, and the central axis of the movable pulley 14 is parallel to the central axis of the spool; the movable pulleys 14 are divided into two groups with the same number, and the two groups of movable pulleys 14 correspond to the two groups of second fixed pulleys 8. Specifically, the movable pulleys are vertically corresponding to the second fixed pulleys, and as the number of the movable pulleys is 8, the number of the second fixed pulleys is 6, and certain deviation cannot exist in the opposite positions one by one.

In one embodiment, the winding drum is a duplex winding drum 6, wherein one side of the wire rope driven pulley 14 led out from one side of the winding drum is led in from the side far away from the base, and the other side of the wire rope driven pulley 14 led out from the other side of the winding drum is led in from the side close to the base, and in particular, reference is made to fig. 3.

In one embodiment, the base comprises a front beam 1 and a rear beam 2, the front beam 1 and the rear beam 2 are connected through a plurality of parallel longitudinal beams 3, two longitudinal beams 3 close to the middle of the base are connected through a first short beam 4, the first short beam 4 is parallel to the front beam 1, and a second fixed pulley 8 is arranged on the first short beam 4, so that rope winding is facilitated.

In one embodiment, the first short beam 4 is connected with the front beam 1 through the second short beam 5, the second short beam 5 is perpendicular to the front beam 1, and the first fixed pulley 9 is mounted on the second short beam 5, so that the relative positions of the first fixed pulley and the second fixed pulley are conveniently arranged.

In one embodiment, the gate connector 10 is provided with two sets of support plates 11, and the two sets of support plates 11 are provided with a pulley mounting frame on which the movable pulley 14 is mounted.

In one embodiment, the pulley mounting frame comprises a shell 12, a movable pulley 14 is mounted in the shell 12, the shell plays a certain role in protecting the movable pulley, a strip-shaped through hole 13 is formed in the upper portion of the shell 12, and a steel wire rope passes through the strip-shaped through hole.

The above embodiments may be combined with each other.

Finally, 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; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.

Claims

1. The utility model provides a large-tonnage hydropower station headstock gear, includes the base, sets up reel and reel actuating mechanism on the base, connects its characterized in that through wire rope between reel and the gate connecting piece: 2N-1 fixed pulleys are arranged on the base, and 2N movable pulleys are connected to the gate connecting piece, wherein N is a positive integer greater than or equal to 2; the wire rope led out from the winding drum sequentially winds around one movable pulley and then one fixed pulley until all the fixed pulleys and the movable pulleys.

2. The large tonnage hydropower station hoist according to claim 1, characterized in that: one fixed pulley is a first fixed pulley, the other fixed pulleys are second fixed pulleys, the second fixed pulleys are coaxially arranged in a row, the central shaft of each second fixed pulley is parallel to the central shaft of the winding drum, the first fixed pulley is positioned on the central line of the base, the central shaft of the first fixed pulley is perpendicular to the central shaft of the winding drum, the second fixed pulleys are divided into two groups with the same number, and the two groups of fixed pulleys are respectively positioned on two sides of the first fixed pulley.

3. The large tonnage hydropower station hoist according to claim 2, characterized in that: the first fixed pulley is near the edge of the base, and the second fixed pulley is positioned between the winding drum and the first fixed pulley.

4. A large tonnage hydropower station hoist according to claim 3, characterized in that: each movable pulley is coaxially arranged in a row, and the central shaft of the movable pulley is parallel to the central shaft of the winding drum; the movable pulleys are divided into two groups with the same number, and the two groups of movable pulleys correspond to the two groups of second fixed pulleys.

5. The large tonnage hydropower station hoist according to claim 4, characterized in that: the winding drum is a duplex winding drum, one side of the steel wire rope driven pulley led out from one side of the winding drum, which is far away from the base, is led in, and the other side of the winding drum, which is led out from the other side of the winding drum, is led in from one side of the steel wire rope driven pulley, which is close to the base.

6. The large tonnage hydropower station hoist according to claim 5, characterized in that: the base includes front beam and back beam, connects through a plurality of parallel longerons between front beam and the back beam, connects through first short beam between two longerons near the base middle part, and first short beam is parallel with the front beam, and the second fixed pulley is installed on first short beam.

7. The large tonnage hydropower station hoist according to claim 6, characterized in that: the first short beam is connected with the front beam through a second short beam, the second short beam is perpendicular to the front beam, and the first fixed pulley is arranged on the second short beam.

8. The large tonnage hydropower station hoist of claim 7, characterized in that: two groups of supporting plates are arranged on the gate connecting piece, a pulley mounting frame is arranged on the two groups of supporting plates, and a movable pulley is arranged on the pulley mounting frame.

9. The large tonnage hydropower station hoist of claim 8, characterized in that: the pulley mounting bracket includes the shell, and the movable pulley is installed in the inside of shell, and the upper portion of shell sets up the bar through-hole, and wire rope passes in the bar hole.