CN219009748U

CN219009748U - Lifting balance beam device

Info

Publication number: CN219009748U
Application number: CN202223316880.2U
Authority: CN
Inventors: 刘永刚; 侯永强; 吴海召; 陈长钊; 胡成国; 郭珍吉; 陈彭飞; 乔军凯
Original assignee: Henan Weihua Heavy Machinery Co Ltd
Current assignee: Henan Weihua Heavy Machinery Co Ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-05-12
Anticipated expiration: 2032-12-12

Abstract

The utility model provides a lift and hang compensating beam device, includes the generator hanging axle, and the upper end of generator hanging axle articulates compensating beam, and the tip of compensating beam is equipped with the draw-in groove, and the draw-in groove is used for connecting the hoist lifting hook, and the hinge between generator hanging axle and the compensating beam specifically does: the middle part of the balance beam is provided with a hollow part, the generator hanging shaft is arranged in the hollow part in a penetrating way, the upper end part of the generator hanging shaft is provided with an annular groove, an annular plate is fixed in the annular groove, a thrust bearing is sleeved outside the upper end part of the generator hanging shaft, the thrust bearing is positioned between the annular plate and the generator hanging shaft, and an upper ring of the thrust bearing is fixed on the annular plate. Compared with the prior art, the utility model has the technical effects that the balance beam and the generator hanging shaft are arranged, the positions of the generator stator fixed on the balance beam and the rotor fixed on the generator hanging shaft can be adjusted during installation, and the lifting and hanging of the large hydroelectric generator are convenient.

Description

Lifting balance beam device

Technical Field

The utility model relates to a lifting balance beam device.

Background

Currently, when a crane lifts large objects such as a rotor through a balance beam, it is common practice to install a lifting shaft in the lifting beam, then connect one end of the rotor to the lifting shaft, and finally lift the large objects, for example, patent documents with an authorized bulletin number of CN204297920U and an authorized bulletin date of 2015.04.29.

The stator and the rotor of the large hydroelectric generator are heavy in weight, at least two cranes are required to be adopted for lifting, and the balance beam is fast and convenient to connect with the lifting hook of the crane due to the specificity of the stator and the rotor structure and the assembly sequence; and the stator, the rotor and the balance beam are hoisted for a plurality of times, a special hoisting shaft for fixing and rotating is required to be arranged on the balance beam, the connection between the hoisting shaft and the balance beam is convenient, interchangeability is considered according to the stations of the stator and the rotor, and a novel hoisting balance beam device is required to be developed.

Disclosure of Invention

The utility model aims to solve the technical problems: how to design a new lifting balance beam device, which meets the requirements of lifting the stator and the rotor of a large hydroelectric generator.

The technical scheme of the utility model is as follows:

the utility model provides a lift and hang compensating beam device, includes the generator hanging axle, and the upper end of generator hanging axle articulates compensating beam, and the tip of compensating beam is equipped with the draw-in groove, and the draw-in groove is used for connecting the hoist lifting hook, and the hinge between generator hanging axle and the compensating beam specifically does: the middle part of the balance beam is provided with a hollow part, the generator hanging shaft is arranged in the hollow part in a penetrating way, the upper end part of the generator hanging shaft is provided with an annular groove, an annular plate is fixed in the annular groove, a thrust bearing is sleeved outside the upper end part of the generator hanging shaft, the thrust bearing is positioned between the annular plate and the generator hanging shaft, an upper ring (also called a shaft ring) of the thrust bearing is fixed on the annular plate, and a lower ring (also called a seat ring) of the thrust bearing is fixed on the balance beam; the annular plate comprises two semi-rings which are symmetrically arranged: the connecting plate is positioned at the outer sides of the first semi-ring and the second semi-ring, and is fixed on the first semi-ring and the second semi-ring through bolts.

The balance beam is provided with a slide way cylinder, a screw rod is arranged in a cavity of the slide way cylinder, the outer end part of the screw rod is clamped in an end fixing chamber of the slide way cylinder, the outer end part of the screw rod extends to the outer side of the slide way cylinder to form a fixed extension part, a rotating wheel is fixed on the extension part, a first bearing is arranged in the fixing chamber, the screw rod is connected with the slide way cylinder through the first bearing, a screw rod thread is matched with a screw block, the screw block is fixed in a pin shaft, and the pin shaft is in key connection with the slide way cylinder.

Compared with the prior art, the utility model has the technical effects that the balance beam and the generator hanging shaft are arranged, the positions of the generator stator fixed on the balance beam and the rotor fixed on the generator hanging shaft can be adjusted during installation, and the lifting and hanging of the large hydroelectric generator are convenient.

Drawings

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

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

Fig. 3 is an enlarged schematic view of the left end portion of fig. 1.

Fig. 4 is an enlarged schematic view of the middle portion of fig. 1.

Fig. 5 is a schematic front view of a ring coupling plate.

Detailed Description

The utility model will be described in detail below with reference to the drawings and detailed description thereof.

As shown in fig. 1-5, a lifting balance beam device comprises a generator lifting shaft 4, wherein the upper end of the generator lifting shaft 4 is hinged with a balance beam 3, the end part of the balance beam 3 is provided with a clamping groove 31, and the clamping groove 31 is used for connecting a crane lifting hook 1.

The hinge joint between the generator hanging shaft 4 and the balance beam 3 is specifically as follows: the middle part of compensating beam 3 is equipped with well 32, and generator hanging axle 4 wears to establish in well 32, and the upper end of generator hanging axle 4 is equipped with ring channel 41, and ring channel 41 internal fixation annular plate 7, thrust bearing 8 are established to the outside cover of the upper end of generator hanging axle 4, and thrust bearing 8 is located between annular plate 7 and the generator hanging axle 4, and thrust bearing 8's top ring (also called the pedestal ring) is fixed on annular plate 7, and thrust bearing 8's lower ring (also called the pedestal ring) is fixed on compensating beam 3.

As shown in fig. 5, for ease of installation, the annular plate 7 comprises two half-rings arranged symmetrically: the first semi-ring 71, the second semi-ring 72, the junction of first semi-ring 71 and second semi-ring 72 is equipped with connecting plate 73, and connecting plate 73 is located the outside of first semi-ring 71 and second semi-ring 72, and connecting plate 73 passes through the bolt fastening on first semi-ring 71 and second semi-ring 72.

Referring to fig. 3, in order to facilitate the cooperation of the clamping groove 31 and the crane hook 1, the slide rail barrel 20 is fixed on the balance beam 3, a screw 22 is arranged in a chamber 203 of the slide rail barrel 20, an outer end (see reference numeral 221) of the screw 22 is clamped in an end fixing chamber 201 of the slide rail barrel 20, the outer end of the screw 22 extends to the outer side of the slide rail barrel 20 to form a fixed extension part, a rotating wheel 21 is fixed on the extension part, a first bearing 202 is arranged in the fixing chamber 201, the screw 22 is connected with the slide rail barrel 20 through the first bearing 202, a screw 22 is in threaded fit with a screw block 23, the screw block 23 is fixed in a pin shaft 24, and the pin shaft 24 is in key connection with the slide rail barrel 20.

As shown in fig. 1, in order to facilitate observation of the levelness of the balance beam 3, a level bar 6 is provided on the balance beam 3.

The working principle is as follows:

in the operation of the balance beam, referring to fig. 1-5, the rotating wheel 21 is rotated, because a part of the screw 22 is blocked in the end fixing chamber 201 and cannot move horizontally, the screw 22 can only rotate synchronously, the screw block 23 is restrained by the pin shaft 24 and the slide way barrel 20 and cannot rotate and can only move axially, and the pin shaft 24 and the screw block 23 move leftwards together, so that the pin shaft 24 leaves the hook cavity 11.

At this time, the hook cavity 11 of the crane hook 1 is settled into the clamping groove 31 of the balance beam 3, the rotating wheel 21 is reversely rotated, the pin shaft 24 moves rightward together with the screw block 23, the pin shaft 24 directly passes through the hook cavity 11, and the balance beam 3 is lifted.

After the balance beam 3 is lifted and falls into the generator hanging shaft 4, the two first half rings 71 and the second half rings 72 are combined in the annular groove 41, the generator hanging shaft 4 is clamped by the annular plate 7, and the generator hanging shaft 4 continues to fall down until the annular plate 7 is pressed on the thrust bearing 8, and at the moment, the balance beam 3 is supported by the generator hanging shaft 4.

At this time, the thrust bearing 8 allows the balance beam 3 to rotate 360 degrees around the axis of the generator hanging shaft 4 together with the annular plate 7 and the upper ring of the thrust bearing 8, so that the positions of the generator stator fixed to the balance beam 3 and the rotor fixed to the generator hanging shaft 4 can be adjusted at the time of installation.

See the prior art for further content.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several changes and modifications can be made without departing from the general inventive concept, and these should also be regarded as the scope of the utility model.

Claims

1. The utility model provides a lift and hang compensating beam device, includes generator hanging axle (4), and generator hanging axle (4) upper end articulates compensating beam (3), and the tip of compensating beam (3) is equipped with draw-in groove (31), and draw-in groove (31) are used for connecting hoist lifting hook (1), its characterized in that:

the hinge joint between the generator hanging shaft (4) and the balance beam (3) is specifically as follows: the middle part of the balance beam (3) is provided with a hollow part (32), the generator hanging shaft (4) is arranged in the hollow part (32) in a penetrating way, the upper end part of the generator hanging shaft (4) is provided with an annular groove (41), an annular plate (7) is fixed in the annular groove (41), a thrust bearing (8) is sleeved outside the upper end part of the generator hanging shaft (4), the thrust bearing (8) is positioned between the annular plate (7) and the generator hanging shaft (4), the upper ring of the thrust bearing (8) is fixed on the annular plate (7), and the lower ring of the thrust bearing (8) is fixed on the balance beam (3);

the annular plate (7) comprises two semi-rings symmetrically arranged: the connecting plate (73) is arranged at the joint of the first half ring (71) and the second half ring (72), the connecting plate (73) is located at the outer sides of the first half ring (71) and the second half ring (72), and the connecting plate (73) is fixed on the first half ring (71) and the second half ring (72) through bolts.

2. The lifting balance beam device of claim 1, wherein: a slide way cylinder (20) is fixed on a balance beam (3), a screw rod (22) is arranged in a cavity (203) of the slide way cylinder (20), the outer end part of the screw rod (22) is clamped in an end fixing chamber (201) of the slide way cylinder (20), the outer end part of the screw rod (22) extends to the outer side of the slide way cylinder (20) to form a fixed extension part, a rotating wheel (21) is fixed on the extension part, a first bearing (202) is arranged in the fixing chamber (201), the screw rod (22) is connected with the slide way cylinder (20) through the first bearing (202), a screw block (23) is in threaded fit with the screw rod (22), the screw block (23) is fixed in a pin roll (24), and the pin roll (24) is in key connection with the slide way cylinder (20).