CN214243440U

CN214243440U - Shield constructs aerial 360 upset machinery hoists of section of jurisdiction

Info

Publication number: CN214243440U
Application number: CN202120023572.7U
Authority: CN
Inventors: 王海峰; 刘增辉; 柳骁蕾; 王志佳; 张佳虎
Original assignee: China Railway 12th Bureau Group Co Ltd; Second Engineering Co Ltd of China Railway 12th Bureau Group Co Ltd
Current assignee: China Railway 12th Bureau Group Co Ltd; Second Engineering Co Ltd of China Railway 12th Bureau Group Co Ltd
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2021-09-21
Anticipated expiration: 2031-01-06

Abstract

The utility model relates to a lifting appliance, in particular to a lifting appliance for overturning shield segments, belonging to the field of shield segment prefabricating instruments; the lifting device comprises a lifting main beam and two chain wheels with equal size, wherein lifting lugs are arranged on the lifting main beam, and rotating shafts of the two chain wheels are horizontally arranged in the same vertical surface; the automatic shield segment hoisting device is characterized by further comprising a driving device, chains and a hoisting belt, wherein the chains are hung on the two chain wheels respectively, the bottom ends of the chains are connected with the hoisting belt to enclose a closed ring, the length of the hoisting belt is larger than the width of two times of shield segments, the distance between the hoisting belt and the shield segments is smaller than the length of the shield segments, the bottoms of the two hoisting belts are equal in height, and the driving device is arranged on the hoisting main beam to drive the two chain wheels synchronously. The utility model discloses the operation is portable, can reduce the probability that the section of jurisdiction takes place to collide with in handling, the upset in-process by a wide margin, effectively improves production efficiency.

Description

Shield constructs aerial 360 upset machinery hoists of section of jurisdiction

Technical Field

The utility model relates to a hoist especially is used for the hoist of shield structure section of jurisdiction upset belongs to shield structure section of jurisdiction prefabrication apparatus field.

Background

At present, shield segment production becomes the mainstream production mode of shield lining segments with high efficiency, high automation degree and less manual investment, and after production on a production line is completed, finished segments need to be demoulded, placed for natural cooling, transported to a water curing pool for curing, transported to a finished product storage yard for curing, a turnover type test and a turnover loading vehicle to be transported to a subway construction site for use. During the period, the shield segments are hoisted for many times, the shield segments are adjusted to be vertically placed from the horizontal type with the inner arc surfaces facing downwards, then the shield segments are adjusted to be horizontally placed with the inner arc surfaces facing downwards for a test, then the shield segments are adjusted to be placed in an upward mode with the inner arc surfaces facing upwards, and the shield segments are transported outside after being hoisted and loaded.

In traditional production operation, to the adjustment of the section of jurisdiction posture, need use hoisting machinery eccentric lifting or hang to one side and realize through overturning many times subaerial, the inefficiency, the process is wayly difficult to control, and the askew drawing of hoist hangs to one side, has great danger, very easily makes colliding with of finished product section of jurisdiction.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is exactly to above not enough, it is portable to provide an operation, can reduce the probability that the section of jurisdiction takes place to collide with in handling, the turnover process by a wide margin, effectively improves production efficiency.

In order to achieve the purpose, the utility model provides a shield segment air 360-degree overturning mechanical lifting appliance, which comprises a lifting girder and two equal-size chain wheels, wherein lifting lugs are arranged on the lifting girder, and rotating shafts of the two chain wheels are horizontally arranged in the same vertical plane; the automatic shield segment hoisting device is characterized by further comprising a driving device, chains and a hoisting belt, wherein the chains are hung on the two chain wheels respectively, the bottom ends of the chains are connected with the hoisting belt to enclose a closed ring, the length of the hoisting belt is larger than the width of two times of shield segments, the distance between the hoisting belt and the shield segments is smaller than the length of the shield segments, the bottoms of the two hoisting belts are equal in height, and the driving device is arranged on the hoisting main beam to drive the two chain wheels synchronously.

Further, drive arrangement includes motor, reduction gear, transmission shaft, and the transmission shaft level sets up under the hoist and mount girder, and two sprocket settings are on the transmission shaft, and transmission shaft, reduction gear, motor connect gradually.

Furthermore, a group of bearing seats is respectively arranged at the front and the back of each chain wheel, the bearing seats are fixed on the bottom surface of the hoisting main beam, and the transmission shaft penetrates through the four groups of bearing seats.

Further, the chain wheel is a double-row chain wheel.

Further, the hoisting belt is a flat hoisting belt made of nylon.

Furthermore, the hoisting belt is connected with the chain through a pull buckle, one end of the pull buckle is provided with a chain buckle which is locked with the chain, and the other end of the pull buckle is provided with a handle which penetrates through a hanging ring of the hoisting belt.

Compared with the prior art, the utility model has the advantages that:

the utility model provides a pair of shield constructs 360 upset machinery hoists in air of section of jurisdiction can pick up when the arbitrary posture of section of jurisdiction and lift by crane the section of jurisdiction, realizes that the shield constructs the horizontal of section of jurisdiction interior arcwall face down, vertical placing, the adjustment of all postures such as horizontal of interior arcwall face down, all adjustments are all accomplished aloft to realize remote control operation, very big reduction colliding with of section of jurisdiction, it is efficient, and safe and reliable.

Drawings

Fig. 1 is a front view structure diagram of the present invention.

Fig. 2 is a schematic side view of the present invention.

Fig. 3 is a schematic view of the horizontal state of the pipe piece during hoisting.

Fig. 4 is a schematic view of a vertical state of a segment during hoisting.

In the figure: 1-lifting lugs; 2-a reducer; 3-an electric motor; 4-hoisting the main beam; 5-a transmission shaft; 6-bearing seat; 7-a chain; 8-hoisting belt; 9-pulling the button; 10-a sprocket; 11-shield segments; 12-lifting the lifting rope.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings. The drawings are only for the purpose of understanding the technical content of the invention and do not represent the actual scale and the actual shape of the product, wherein the same reference numbers indicate parts which are identical in structure or function but similar in structure.

In this context, "parallel", "perpendicular", and the like are not strictly mathematical and/or geometric limitations, but may also include tolerances as would be understood by one skilled in the art and allowed for in the manufacture or use of the product. In addition, "perpendicular" includes not only mutually perpendicular in which two objects are directly connected in space but also mutually perpendicular in which two objects are not connected in space.

As shown in fig. 1 and 2; a shield segment aerial 360-degree overturning mechanical lifting appliance comprises a lifting main beam 4 and two chain wheels 10 with equal size, wherein lifting lugs 1 are arranged on the lifting main beam 4, and rotating shafts of the two chain wheels 10 are horizontally arranged in the same vertical surface; the shield tunnel boring machine further comprises a driving device, chains 7 and hoisting belts 8, wherein the chains 7 are hung on the two chain wheels 10 respectively, the bottom ends of the chains 7 are connected with the hoisting belts 8 to enclose into a closed ring shape, the length of each hoisting belt 8 is larger than the width of a double shield segment, the distance between the hoisting belts is smaller than the length of the shield segment, the bottoms of the two hoisting belts 8 are equal in height, and the driving device is arranged on the hoisting main beam 4 to drive the two chain wheels 10 synchronously.

The driving device comprises a motor 3, a speed reducer 2 and a transmission shaft 5, wherein the transmission shaft 5 is horizontally arranged below the hoisting main beam 4, two chain wheels 10 are arranged on the transmission shaft 5, and the transmission shaft 5, the speed reducer 2 and the motor 3 are sequentially connected. A group of bearing seats 6 are respectively arranged at the front and the back of each chain wheel 10, the bearing seats 6 are abutted against the chain wheels 10, the bearing seats 6 are installed on the bottom surface of the hoisting main beam 4 by adopting high-strength bolts, and the transmission shafts 5 penetrate through the four groups of bearing seats 6. That is, the bearing seat 6 is the stressed support of the transmission shaft 5, all the loads on the transmission shaft 5 are concentrated on the chain wheel 10, the shorter the distance between the bearing seats 6 at the front and the rear of the chain wheel 10 is, the shorter the moment arm is, and the transmission shaft 5 is not easy to bend and deform due to bending moment.

The shield segments can be twisted in the air after being lifted, and in order to avoid chain dropping of the chain wheel 10 caused by the twisting of the shield segments when the chain wheel 10 rotates, the chain wheel 10 adopts a double-row chain wheel; and simultaneously, the service life of the chain is prolonged.

The hoisting belt 8 is a flat hoisting belt made of nylon, has large contact area with the shield segment, increases the friction force between the shield segment and the hoisting belt, and avoids sliding on the cambered surface of the shield segment.

The hoisting belt 8 is connected with the chain 7 through a pull buckle 13, one end of the pull buckle 13 is provided with a chain buckle which is locked with the chain 7, and the other end of the pull buckle 13 is provided with a handle which penetrates through a hanging ring of the hoisting belt 8.

As shown in fig. 3 and 4, the utility model discloses a method of using the lifting appliance is that, the lifting lug 1 of the lifting girder 4 is connected with the lifting rope 12 of the lifting machine, the motor 3 is connected with the wireless control circuit through the cable switch-on power supply installed along the lifting arm, and the motor 3 is connected with the wireless control circuit to start and stop. Two hoisting belts 8 are sleeved on two sides of the shield segment 11, after the hoisting machinery hoists the whole hoisting tool in the air, the motor 3 is started, the driving transmission shaft 5 drives the chain wheel 10 to rotate, and the shield segment 11 is turned to a certain side.

It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.

The above detailed description is only for the purpose of illustrating the practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the technical spirit of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a shield constructs 360 upset machinery hoists in air of section of jurisdiction which characterized in that includes: the lifting device comprises a lifting main beam (4) and two chain wheels (10) with equal size, wherein lifting lugs (1) are arranged on the lifting main beam (4), and rotating shafts of the two chain wheels (10) are horizontally arranged in the same vertical surface; the shield tunnel boring machine is characterized by further comprising a driving device, a chain (7) and a hoisting belt (8), wherein the chain (7) is hung on the two chain wheels (10) respectively, the bottom end of the chain (7) is connected with the hoisting belt (8) to form a closed ring, the length of the hoisting belt (8) is greater than the width of a double shield segment, the distance is smaller than the length of the shield segment, the bottoms of the two hoisting belts (8) are equal in height, and the driving device is arranged on the hoisting main beam (4) to drive the two chain wheels (10) synchronously.

2. The shield segment aerial 360-degree overturning mechanical lifting appliance of claim 1, which is characterized in that: the driving device comprises a motor (3), a speed reducer (2) and a transmission shaft (5), wherein the transmission shaft (5) is horizontally arranged below a hoisting main beam (4), two chain wheels (10) are arranged on the transmission shaft (5), and the transmission shaft (5), the speed reducer (2) and the motor (3) are sequentially connected.

3. The shield segment aerial 360-degree overturning mechanical lifting appliance of claim 2, characterized in that: a group of bearing seats (6) are respectively arranged at the front and the back of each chain wheel (10), the bearing seats (6) are fixed on the bottom surface of the hoisting main beam (4), and the transmission shaft (5) penetrates through the four groups of bearing seats (6).

4. The shield segment 360-degree turning mechanical lifting appliance in the air according to any one of claims 1 to 3, wherein: the chain wheel (10) is a double-row chain wheel.

5. The shield segment aerial 360-degree overturning mechanical lifting appliance of claim 4, wherein: the hoisting belt (8) is a flat hoisting belt made of nylon.

6. The shield segment aerial 360-degree overturning mechanical lifting appliance of claim 5, wherein: the hoisting belt (8) is connected with the chain (7) through a pull buckle (13), one end of the pull buckle (13) is provided with a chain buckle which is locked with the chain (7), and the other end of the pull buckle (13) is provided with a handle which penetrates through a hanging ring of the hoisting belt (8).