CN216066269U

CN216066269U - Main hook follow-up pin penetrating device of hydropower station dam top gantry crane

Info

Publication number: CN216066269U
Application number: CN202121918770.6U
Authority: CN
Inventors: 蔡滨; 朱洪正; 董有存; 毛文波; 董启泰; 季兴光; 葛振旭; 包广查; 易雄; 龚官福; 刘增荣; 曹彦博; 奚云江; 安康; 王江; 董晓飞
Original assignee: Huaneng Lancang River Hydropower Co Ltd
Current assignee: Huaneng Lancang River Hydropower Co Ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-03-18
Anticipated expiration: 2031-08-16

Abstract

The utility model provides a hydropower station dam crest portal crane main hook follow-up pin penetrating device which comprises a first lifting lug and a second lifting lug which are fixed at the bottom of the main hook and arranged in parallel, wherein a first sleeve communicated with the first lifting lug is arranged on one side, far away from the second lifting lug, of the first lifting lug, a second sleeve corresponding to the first sleeve in position and communicated with the second lifting lug is arranged on one side, far away from the first lifting lug, of the second lifting lug, a pin shaft is arranged in the first sleeve, a conducting nut is arranged at one end, far away from the first lifting lug, of the pin shaft, the conducting nut is in threaded connection with a threaded push rod, and one end, far away from the conducting nut, of the threaded push rod is connected with a speed reducer and a motor. The main hook follow-up pin penetrating device for the gate machine at the top of the hydropower station dam, provided by the utility model, has the advantages of simple structure, high working efficiency and good safety performance.

Description

Main hook follow-up pin penetrating device of hydropower station dam top gantry crane

Technical Field

The utility model relates to the technical field of hydropower station machinery, in particular to a main hook follow-up pin penetrating device of a gate machine at the top of a hydropower station dam.

Background

During the maintenance of the power plant, the water gate lifting is realized after the pin penetrating and retreating work is completed by using a main hook of a gate machine with 500 tons of dam crest and a grabbing beam. Due to the fact that the main hook pin penetrating mechanism of the dam crest 500-ton gantry crane frequently penetrates and retreats pins, the abnormal situation of pin penetrating and retreating of the pin penetrating mechanism is easy to occur, and a large amount of labor and time are consumed for pin penetrating and retreating each time. And when the operator stands on the gate to penetrate and withdraw the pin, the labor intensity is high, and the risk of falling from high altitude exists. Therefore, the manual pin penetrating and withdrawing work is not only low in efficiency, but also low in safety. In order to ensure the smooth development of flood prevention and flood control work and unit maintenance work of a power station, a pin penetrating mechanism with simple structure, high working efficiency and good safety is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a hydropower station dam crest portal crane main hook follow-up type pin penetrating device which is simple in structure, high in working efficiency and good in safety performance.

In order to solve the technical problem, the utility model provides a hydropower station dam crest portal crane main hook follow-up type pin penetrating device which comprises a first lifting lug and a second lifting lug which are fixed at the bottom of the main hook and arranged in parallel, wherein a first sleeve communicated with the first lifting lug is arranged on one side, far away from the second lifting lug, of the first lifting lug, a second sleeve corresponding to the first sleeve in position and communicated with the second lifting lug is arranged on one side, far away from the first lifting lug, of the second lifting lug, a pin shaft is arranged in the first sleeve, a conducting nut is arranged at one end, far away from the first lifting lug, of the pin shaft, the conducting nut is in threaded connection with a threaded push rod, and one end, far away from the conducting nut, of the threaded push rod is connected with a speed reducer and a motor.

Furthermore, an inner hole is formed in one end, connected with the conduction nut, of the pin shaft, and the radius of the inner hole is larger than that of the threaded push rod.

Further, the inner diameter of the second sleeve is larger than the outer diameter of the pin shaft.

Furthermore, a sealing cover fixedly connected with the first sleeve is arranged outside the speed reducer and the motor.

Furthermore, an aviation quick-change connector is arranged on the sealing cover, and the speed reducer and the motor are connected with the electrical control component through cables and the aviation quick-change connector.

Further, a sealing bush capable of sealing between the first sleeve and the pin shaft is arranged on the inner wall of the joint of the first sleeve and the first lifting lug.

The utility model provides a hydropower station dam top gate machine main hook follow-up pin penetrating device, wherein a threaded push rod is in threaded connection with a conduction nut fixed at the end part of a pin shaft, when the threaded push rod rotates under the driving of a motor, the conduction nut rotates on the threaded push rod relative to the threaded push rod and moves on the threaded push rod, so that the pin shaft is driven to axially move in a first sleeve, the connection and the separation of the pin shaft and a second sleeve are realized, and the purpose of automatic pin penetrating and pin withdrawing is achieved. Not only simple structure, degree of automation is high, can shorten the time limit for a project moreover, improves work efficiency greatly, reduces working cost, has improved economic benefits, simultaneously, still does not need artifical the participation to wear the round pin and move back round pin work, and factor of safety is high, has extensive spreading value.

Drawings

Fig. 1 is a schematic structural diagram of a main hook follow-up pin-penetrating device of a hydroelectric dam crest door machine provided by an embodiment of the utility model.

Reference numerals

1-main hook, 2-first lifting lug, 3-second lifting lug, 4-first sleeve, 5-second sleeve, 6-pin shaft, 7-conduction nut, 8-threaded push rod, 9-speed reducer, 10-motor, 11-inner hole, 12-sealing cover, 13-aviation quick-change connector and 14-sealing bush

Detailed Description

Referring to fig. 1, the main hook follow-up pin penetrating device for the gate crane at the top of the hydroelectric power station dam provided by the embodiment of the utility model comprises a first lifting lug 2 and a second lifting lug 3 which are fixedly connected to the bottom of the main hook 1 and parallel to each other, a first sleeve 4 is fixedly connected to one side of the first lifting lug 2, which is far away from the second lifting lug 3, and a through hole with the same inner diameter as that of the first sleeve 4 is arranged at the joint of the first lifting lug 2 and the first sleeve 4, so that the first lifting lug 2 is communicated with the first sleeve 4. A second sleeve 5 is arranged on one side, far away from the first lifting lug 2, of the second lifting lug 3, the position of the second sleeve 5 corresponds to that of the first sleeve 4, and a through hole with the same inner diameter as that of the second sleeve 5 is arranged at the joint of the second lifting lug 3 and the second sleeve 5, so that the second lifting lug 3 is communicated with the second sleeve 5.

A pin shaft 6 is arranged in the first sleeve 4, one end, far away from the first lifting lug 2, of the pin shaft 6 is fixedly connected with a conduction nut 7, the conduction nut 7 is in threaded connection with a threaded push rod 8, and one end, far away from the conduction nut 7, of the threaded push rod 8 is fixedly connected with a speed reducer 9 and a motor 10. When the motor 10 drives the speed reducer 9 to rotate, the speed reducer 9 drives the threaded push rod 8 to rotate, the transmission nut 7 in threaded connection with the threaded push rod 8 rotates relative to the threaded push rod 8 in a threaded mode, the transmission nut 7 moves axially along the threaded push rod 8, and therefore the pin shaft 6 fixedly connected with the transmission nut 7 is driven to move axially in the first sleeve 4. The inner diameter of the second sleeve 5 is larger than the outer diameter of the pin shaft 6, when the motor 10 rotates in the forward direction, the threaded push rod 8 enables the conduction nut 7 and the pin shaft 6 fixedly connected with the conduction nut 7 to move towards the second sleeve in the first sleeve 4, and finally the pin shaft 6 moves to the end part to extend into the second sleeve 5, so that the pin penetrating purpose is achieved. When the motor 10 rotates reversely, the end of the pin shaft 6 can finally withdraw from the second sleeve 5, so as to achieve the purpose of pin withdrawal.

When the threaded push rod 8 drives the pin shaft 6 to move axially, in order to ensure the space that the threaded push rod 8 can be accommodated, an inner hole 11 is arranged at one end of the pin shaft 6 connected with the conduction nut 7, and the radius of the inner hole 11 is larger than that of the threaded push rod 8. When the pin shaft 6 moves towards the direction far away from the second sleeve 5, the threaded push rod 8 gradually extends into the inner hole 11 of the pin shaft 6, and when the pin shaft 6 moves towards the direction close to the second sleeve 5, the threaded push rod 8 gradually withdraws from the inner hole 11 of the pin shaft 6.

In order to prevent water from entering the speed reducer 9 and the motor 10 to influence the normal operation of the speed reducer 9 and the motor 10 in deep water, a sealing cover 12 is arranged outside the speed reducer 9 and the motor 10, a sealing structure is arranged at one end of the sealing cover 12 far away from the first sleeve 4, and the other end of the sealing cover 12 is tightly and fixedly connected with the first sleeve 4. Meanwhile, in order to avoid that the normal operation of the speed reducer 9 and the motor 10 is affected by the entering of external water from the gap between the pin shaft 6 and the first sleeve 4 when the pin shaft 6 moves in the first sleeve 4, a sealing bush 14 which can play a sealing role between the first sleeve 4 and the pin shaft 6 is installed on the inner wall of the joint of the first sleeve 4 and the first lifting lug 2.

The operation of the speed reducer 9 and the motor 10 is controlled by an electrical control unit, an aviation quick-change connector 13 is provided on the seal cover 12, the speed reducer 9 and the motor 10 are connected to a cable, and the other end of the cable is connected to an external electrical control unit via the aviation quick-change connector 13.

When the electric control component executes a pin penetrating instruction, the motor 10 drives the speed reducer 9, the speed reducer 9 drives the threaded push rod 8 to rotate in the forward direction, the pin shaft 6 is driven to move towards the direction close to the second sleeve 5, after the end part of the pin shaft 6 reaches the preset position of the second sleeve 5, the detection device of the electric control component sends an instruction, the motor 10 stops running, the pin shaft 6 stops, and the pin penetrating work is completed. When the electric control component executes a pin withdrawing command, the motor 10 drives the speed reducer 9, the speed reducer 9 drives the threaded push rod 8 to rotate reversely, the pin 6 is driven to move in the direction away from the second sleeve 5, after the pin 6 is withdrawn to a preset position, a detection device of the electric control component sends a command, the motor 10 stops running, the pin 6 stops, and the pin withdrawing work is completed.

Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims

1. The utility model provides a power station dam crest door machine main hook follow-up formula wears to sell device which characterized in that: including fixing first lug (2) and second lug (3) at major hook (1) bottom parallel arrangement, one side of keeping away from second lug (3) on first lug (2) sets up first sleeve (4) with first lug (2) intercommunication, one side of keeping away from first lug (2) on second lug (3) is provided with second sleeve (5) that correspond with first sleeve (4) position and communicate with second lug (3), set up round pin axle (6) in first sleeve (4), the one end that first lug (2) were kept away from in round pin axle (6) sets up conduction nut (7), conduction nut (7) and screw thread push rod (8) threaded connection, the one end that conduction nut (7) were kept away from in screw thread push rod (8) is connected with speed reducer (9) and motor (10).

2. The hydropower station dam crest portal crane main hook follow-up type pin penetrating device according to claim 1, characterized in that: an inner hole (11) is formed in one end, connected with the conduction nut (7), of the pin shaft (6), and the radius of the inner hole (11) is larger than that of the threaded push rod (8).

3. The hydropower station dam crest portal crane main hook follow-up type pin penetrating device according to claim 2, characterized in that: the inner diameter of the second sleeve (5) is larger than the outer diameter of the pin shaft (6).

4. The hydropower station dam crest portal crane main hook follow-up type pin penetrating device according to claim 1, characterized in that: and a sealing cover (12) fixedly connected with the first sleeve (4) is arranged outside the speed reducer (9) and the motor (10).

5. The hydropower station dam crest portal crane main hook follow-up type pin penetrating device according to claim 4, characterized in that: set up aviation quick-change coupler (13) on sealed cowling (12), speed reducer (9) and motor (10) pass through the cable warp aviation quick-change coupler (13) are connected with the electrical control part.

6. The hydropower station dam crest portal crane main hook follow-up type pin penetrating device according to claim 4, characterized in that: and a sealing bush (14) capable of sealing between the first sleeve (4) and the pin shaft (6) is arranged on the inner wall of the joint of the first sleeve (4) and the first lifting lug (2).