CN113003433B

CN113003433B - Segmental beam lifting device

Info

Publication number: CN113003433B
Application number: CN202110125450.3A
Authority: CN
Inventors: 胡涛; 王健; 王强; 赵军伟; 王华山; 王松; 高建全; 尚兆明; 邱驰; 王学柳
Original assignee: Second Engineering Co Ltd of China Railway 16th Bureau Group Co Ltd
Current assignee: Second Engineering Co Ltd of China Railway 16th Bureau Group Co Ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2023-05-12
Anticipated expiration: 2041-01-29
Also published as: CN113003433A

Abstract

The invention discloses a segmental beam lifting device, which comprises a lifting frame and a lifting mechanism arranged on the lifting frame, wherein the lifting mechanism comprises a plurality of lifting ropes, a lifting hook connected to the bottom ends of the lifting ropes and a power component used for driving the lifting ropes to be reeled and unreeled, the bottom of the power component of the lifting mechanism is fixedly provided with a tightening component, the tightening component comprises a second installation shell, a worm wheel ring, a spur gear, a connecting rod and a rope sleeve for the lifting ropes to pass through, the power component comprises a first installation shell, a first motor, a driving bevel gear, a driven bevel gear, an installation shaft and a winding roller, and the supporting component comprises a fixed rod, a supporting hook and a limiting block; the support assembly is arranged, the segmental beams are protected by the support hooks, the stability of the segmental beams in movement is guaranteed, and safety accidents are avoided.

Description

Segmental beam lifting device

Technical Field

The invention relates to a hoisting device, in particular to a hoisting device for a segmental beam.

Background

The segment Liang Youchen is used as a box girder, one of the girders in bridge engineering, the inside is hollow, flanges are arranged on two sides of the upper part, and the box girder is similar to a box, thus obtaining the name. Single box, multiple boxes, etc. The box girder of the reinforced concrete structure is divided into a prefabricated box girder and a cast-in-situ box girder. The box girder combined bridge girder erection machine prefabricated in the independent place can be erected after the lower engineering is completed, so that the engineering progress can be accelerated, and the construction period can be saved; cast-in-situ box girders are mostly used for large continuous bridges.

When the section beam is installed, a lifting device is needed, and the existing lifting device is used for directly lifting multiple parts through multiple lifting ropes and lifting hooks, so that on one hand, due to the fact that errors can exist in the length of the lifting ropes, the section beam cannot be completely hooked by the lifting hooks, unhooking is caused, and safety accidents are caused.

Disclosure of Invention

An embodiment of the present invention aims to provide a hoisting device for a segmental beam, so as to solve the above problems.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the utility model provides a segmental beam hoisting accessory, includes the gallows and installs the hoisting mechanism on the gallows, hoisting mechanism includes many lifting ropes, connects in the lifting hook of lifting rope bottom and is used for driving the lifting rope and rolls up the power pack who unreels, the power pack bottom fixed mounting of hoisting mechanism has the subassembly that tightens up, tighten up the subassembly and include second installation shell, worm, spiral wheel rim, spur gear, connecting rod and supply the rope sling to pass, the second installation shell passes through branch and power pack bottom fixed connection, installs the spiral wheel rim in the second installation shell, and spiral wheel rim one side rotates installs the worm with meshing with it, and worm one end passes through shaft coupling and third motor output shaft fixed connection, a plurality of spur gears are installed to the equidistant rotation of annular in the spiral wheel rim, even integral type is equipped with the internal tooth with spur gear meshing on the inner wall of worm wheel rim, and the number and lifting rope quantity are equal and one-to-one, and spur gear installs in the pivot tip, and the connecting rod is articulated with the spiral wheel end, and the rope sling other end articulates with the rope sling outer wall, and both ends wear to locate respectively the second installation shell upper and lower both sides, and second installation shell is connected with second installation shell and is offered the rope sling and is removed the groove.

In one alternative: the number of the lifting ropes is four.

In one alternative: the power assembly comprises a first installation shell, a first motor, a driving bevel gear, driven bevel gears, an installation shaft and a winding roller, wherein the first installation shell is installed on a lifting frame, the first motor is installed at the bottom of the first installation shell, an output shaft of the first motor extends into the first installation shell and is provided with the driving bevel gear, a plurality of driven bevel gears meshed with the driving bevel gears are annularly equidistant above the driving bevel gear, the number of the driven bevel gears is equal to the number of the lifting ropes and corresponds to one, the driven bevel gears are rotatably installed in the first installation shell through the installation shaft and a bearing, and the winding roller for winding the lifting ropes is installed on the installation shaft.

In one alternative: the first installation shell is in horizontal sliding connection with the lifting frame, a threaded rod is arranged on the upper portion of the first installation shell in a penetrating mode, the first installation shell is in threaded connection with the threaded rod, the threaded rod is rotatably installed at the bottom of the lifting frame, and one end of the threaded rod is fixedly connected with an output shaft of the second motor through a coupler.

In one alternative: the second motor is arranged on the lifting frame.

In one alternative: the first installation shell top integral type is equipped with the slider, has offered the spout that supplies the slider to slide on the gallows.

In one alternative: the lifting hook is characterized by further comprising a supporting component, wherein the supporting component comprises fixing rods, supporting hooks and limiting blocks, a plurality of fixing rods are fixed on the edge of the bottom of the first installation shell at equal intervals in a circumferential direction, the number of the fixing rods is equal to that of the lifting ropes in one-to-one correspondence, the middle parts of the supporting hooks are hinged to the fixing rods, through grooves for the lifting ropes to pass through are formed in the parts, close to the lifting ropes, of the supporting hooks, and the limiting blocks are detachably arranged between the lifting hooks and the supporting hooks on the lifting ropes.

Compared with the prior art, the embodiment of the invention has the following beneficial effects:

1. the tightening assembly comprises a second installation shell, a worm wheel rim, a spur gear, a connecting rod and a rope sleeve for the lifting rope to pass through, after the lifting hook is hooked on the section beam, the lifting rope is rolled up through the power assembly, a third motor is started, the third motor drives the worm to rotate, the worm drives the worm wheel rim to rotate, the worm wheel rim drives the spur gear to rotate, the spur gear drives the rope sleeves to be mutually close through the connecting rod, the lifting rope is further tightened and contracted towards the center, so that unhooking can be avoided, and on the other hand, the lifting rope is more stable during lifting and is prevented from shaking;

2. the support assembly comprises a fixing rod, support hooks and a limiting block, wherein after the section beam is lifted upwards to a certain height by the lifting mechanism, the limiting block moves upwards in the process of moving upwards, the support hooks are driven to move upwards near one end of the lifting rope, one end of each support hook with a hook moves downwards and finally contacts with the side edge of the section beam, the section beam is protected by the support hooks, the stability of the section beam in movement is guaranteed, and safety accidents are avoided.

Drawings

Fig. 1 is a schematic structural view of a first embodiment of the present invention.

Fig. 2 is a schematic structural view of a power assembly according to a first embodiment of the present invention.

FIG. 3 is a schematic view of a tightening assembly according to a first embodiment of the present invention.

FIG. 4 is a three-dimensional view of a tightening assembly according to a first embodiment of the present invention.

Fig. 5 is a schematic structural view of a second embodiment of the present invention.

Reference numerals annotate: 1-lifting frame, 2-chute, 3-slider, 4-threaded rod, 5-power component, 6-tightening component, 7-lifting rope, 8-lifting hook, 9-first motor, 10-second motor, 11-first installation shell, 12-winding roller, 13-installation shaft, 14-driven bevel gear, 15-driving bevel gear, 16-second installation shell, 17-worm, 18-third motor, 19-spur gear, 20-connecting rod, 21-rope sling, 22-worm wheel rim, 23-movement groove, 24-limiting block, 25-supporting hook and 26-fixed rod.

Detailed Description

The present invention will be described in detail below with reference to the drawings, in which like or identical parts are given the same reference numerals, and in which the shape, thickness or height of each component may be enlarged or reduced in practical use. The examples set forth herein are intended to be illustrative of the invention and are not intended to limit the scope of the invention. Any obvious modifications or alterations to the invention, as would be apparent, are made without departing from the spirit and scope of the present invention.

Example 1

Referring to fig. 1-4, in the embodiment of the present invention, a hoisting device for a segmental beam comprises a hoisting frame 1 and a hoisting mechanism mounted on the hoisting frame 1, the hoisting mechanism comprises a plurality of hoisting ropes 7, a hoisting hook 8 connected to the bottom ends of the hoisting ropes 7, and a power assembly 5 for driving the hoisting ropes 7 to reel and unreel, in the embodiment, the number of the hoisting ropes 7 is preferably four, the power assembly 5 comprises a first mounting shell 11, a first motor 9, a driving bevel gear 15, a driven bevel gear 14, a mounting shaft 13 and a winding roller 12, the first mounting shell 11 is mounted on the hoisting frame 1, in the embodiment, the first mounting shell 11 is horizontally and slidably connected with the hoisting frame 1, a sliding block 3 is integrally arranged at the top of the first mounting shell 11, a sliding groove 2 for sliding the sliding block 3 is formed on the hoisting frame 1, further, a threaded rod 4 is arranged on the upper portion of the first mounting shell 11 in a penetrating manner, the first installation shell 11 is in threaded connection with the threaded rod 4, the threaded rod 4 is rotatably installed at the bottom of the lifting frame 1, the threaded rod 4 is preferably connected with the lifting frame 1 through a fixed plate and a bearing, one end of the threaded rod 4 is fixedly connected with the output shaft of the second motor 10 through a coupler, the second motor 10 is installed on the lifting frame 1, the second motor 10 is started, the second motor 10 drives the first installation shell 11 to move, the first installation shell 11 can drive the segmental beam to move, the first motor 9 is installed at the bottom of the first installation shell 11, the output shaft of the first motor 9 extends into the first installation shell 11 and is provided with a driving bevel gear 15, a plurality of driven bevel gears 14 meshed with the driving bevel gears 15 are annularly equidistant above the driving bevel gears 15, the number of the driven bevel gears 14 is equal to that of the lifting ropes 7 and corresponds to one by one, the driven bevel gears 14 are rotatably installed in the first installation shell 11 through the installation shaft 13 and the bearing, the installation shaft 13 is provided with a winding roller 12 for winding the lifting rope 7, when the lifting rope 7 is used, the first motor 9 is started, the first motor 9 is a forward and reverse rotation motor, the first motor 9 drives the drive bevel gear 15 to rotate, the drive bevel gear 15 drives the installation shaft 13 and the winding roller 12 to rotate through the driven bevel gear 14, so that the lifting rope 7 can be wound and unwound, the bottom of the power component 5 of the lifting mechanism is fixedly provided with the tightening component 6, the tightening component 6 comprises a second installation shell 16, a worm 17, a worm wheel ring 22, a spur gear 19, a connecting rod 20 and a rope sleeve 21 for the lifting rope 7 to pass through, the second installation shell 16 is fixedly connected with the bottom of the power component 5 through a supporting rod, the worm wheel ring 22 is rotatably installed in the second installation shell 16, the worm wheel ring 22 is rotatably connected with the second installation shell 16 through a bearing preferably, one side of the worm wheel ring 22 is rotatably provided with the worm 17 meshed with the worm wheel ring 17, one end of the worm 17 is fixedly connected with an output shaft of the third motor 18 through a coupler, the self-locking performance of the worm 17 and a worm wheel is utilized, namely, the worm 17 can drive the worm wheel to rotate, the worm wheel cannot drive the worm 17 to rotate, a plurality of spur gears 19 are installed in a circumferential equidistant rotation manner in the worm wheel ring 22, inner teeth meshed with the spur gears 19 are uniformly and integrally arranged on the inner wall of the worm wheel ring 22, the number of the spur gears 19 is equal to and one-to-one corresponding to that of the lifting ropes 7, the spur gears 19 are preferably installed in a shell through a rotating shaft and a bearing, the spur gears 19 are installed at the end parts of the rotating shaft, the end surfaces of the spur gears 19 are hinged with connecting rods 20, the other ends of the connecting rods 20 are hinged with the outer wall of the rope bushings 21, the two ends of the rope bushings 21 are respectively penetrated on the upper side and the lower side of the second installation shell 16, the rope bushings 21 are in sliding connection with the second installation shell 16, a movement groove 23 for the rope bushings 21 to move is formed in the second installation shell 16, and when in use, the lifting ropes 7 are penetrated through the corresponding rope bushings 21, after the lifting hook 8 is hooked on the section beam, the lifting rope 7 is rolled up through the power assembly 5, the third motor 18 is started, the third motor 18 drives the worm 17 to rotate, the worm 17 drives the worm wheel 22 to rotate, the worm wheel 22 drives the spur gear 19 to rotate, the spur gear 19 drives the rope sleeve 21 to be close to each other through the connecting rod 20, the lifting rope 7 is further tightened and contracted towards the center, so that unhooking can be avoided on one hand, on the other hand, the lifting rope 7 can be more stable during lifting, and shaking of the lifting rope 7 is avoided.

Example 2

Referring to fig. 5, the difference between the embodiment of the present invention and the embodiment 1 is that after the section beam is lifted to a certain height, the section beam is horizontally moved, in order to ensure the stability in the moving process of the section beam, the present invention further comprises a supporting component, the supporting component comprises a fixing rod 26, a supporting hook 25 and a limiting block 24, the edge of the bottom of the first installation shell 11 is fixed with a plurality of fixing rods 26 at equal intervals, the fixing rods 26 are preferably connected with the first installation shell 11 by welding, the number of the fixing rods 26 is equal to and one-to-one corresponding to the number of the lifting ropes 7, the middle part of the supporting hook 25 is hinged on the fixing rods 26, the part of the supporting hook 25, which is close to the lifting ropes 7, is provided with a through groove for the lifting ropes 7, the limiting block 24 is detachably installed between the lifting hooks 8 and the supporting hooks 25 on the lifting ropes 7, and after the section beam is lifted to a certain height by the lifting mechanism, one end, which is close to the lifting hooks 25 is driven to the lifting hooks 7, the supporting hooks 25 are moved upwards, one end of the supporting hooks 25 with the section is contacted with the side edges of the section beam, and finally, the section beam is contacted with the side edges of the section beam, and the safety accidents are avoided in the girder by the supporting bridge.

The working principle of the invention is as follows: when the lifting rope device is used, when the lifting rope 7 passes through the corresponding rope sleeve 21, after the lifting hook (8) is hooked on a section beam, the first motor 9 is started, the first motor 9 is a forward and reverse rotation motor, the first motor 9 drives the driving bevel gear 15 to rotate, the driving bevel gear 15 drives the mounting shaft 13 and the winding roller 12 to rotate through the driven bevel gear 14, so that the lifting rope 7 can be rolled up, the third motor 18 is started, the third motor 18 drives the worm 17 to rotate, the worm 17 drives the worm wheel 22 to rotate, the worm wheel 22 drives the spur gear 19 to rotate, the spur gear 19 drives the rope sleeves 21 to mutually approach through the connecting rod 20, the lifting rope 7 is further tightened and is contracted towards the center, on the one hand, unhooked can be avoided, on the other hand, the lifting rope 7 can be more stable during lifting, after the section beam is lifted up to a certain height by the lifting mechanism, one end of the supporting hook 25, which is provided with the hook, is driven to move downwards, and finally contacts with the section beam side of the section, the section beam is driven by the supporting hook 25, the first safety shell is driven by the supporting hook 10, and the first safety shell is prevented from moving horizontally through the section beam installation of the supporting motor 25.

The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a segmental beam hoisting accessory, includes lifting frame (1) and installs the hoisting mechanism on lifting frame (1), hoisting mechanism includes many lifting ropes (7), connects lifting hook (8) in lifting rope (7) bottom and is used for driving lifting rope (7) and rolls up power pack (5) of unreeling, a serial communication port, the power pack (5) bottom fixed mounting of hoisting mechanism has tightening assembly (6), tightening assembly (6) include second installation shell (16), worm (17), worm wheel circle (22), spur gear (19), connecting rod (20) and rope sling (21) that supply lifting rope (7) to pass;

the second installation shell (16) is fixedly connected with the bottom of the power assembly (5) through a supporting rod, a worm wheel ring (22) is rotatably installed in the second installation shell (16), a worm (17) meshed with the worm wheel ring (22) is rotatably installed on one side of the worm wheel ring (22), one end of the worm (17) is fixedly connected with an output shaft of the third motor (18) through a coupler, a plurality of spur gears (19) are rotatably installed in the inner ring of the worm wheel ring (22) at equal intervals, inner teeth meshed with the spur gears (19) are uniformly and integrally arranged on the inner wall of the worm wheel ring (22), the number of the spur gears (19) is equal to that of the lifting ropes (7) and corresponds to that of the spur gears (19) one by one, connecting rods (20) are hinged to the end faces of the spur gears (19), the other ends of the connecting rods (20) are hinged to the outer walls of the rope loops (21), two ends of the rope loops (21) are respectively arranged on the upper side and the lower side of the second installation shell (16) in a penetrating mode, the rope loops (21) are slidably connected with the second installation shell (16), and movement grooves (23) for moving the rope loops (21) are formed in the second installation shell (16); the number of the lifting ropes (7) is four.

2. The segmental beam lifting device according to claim 1, characterized in that the power assembly (5) comprises a first mounting shell (11), a first motor (9), a drive bevel gear (15), a driven bevel gear (14), a mounting shaft (13) and a winding roller (12), the first mounting shell (11) is mounted on the lifting frame (1), the first motor (9) is mounted at the bottom of the first mounting shell (11), an output shaft of the first motor (9) extends into the first mounting shell (11) and is provided with the drive bevel gear (15), a plurality of driven bevel gears (14) meshed with the drive bevel gear (15) are annularly equidistant above the drive bevel gear (15), the number of the driven bevel gears (14) is equal to that of the lifting ropes (7) and corresponds to that of the lifting ropes one by one, the driven bevel gears (14) are rotatably mounted in the first mounting shell (11) through the mounting shaft (13) and a bearing, and the winding roller (12) for winding the lifting ropes (7) is mounted on the mounting shaft (13).

3. The segmental beam lifting device according to claim 2, wherein the first mounting shell (11) is horizontally and slidably connected with the lifting frame (1), the threaded rod (4) is arranged on the upper portion of the first mounting shell (11) in a penetrating mode, the first mounting shell (11) is in threaded connection with the threaded rod (4), the threaded rod (4) is rotatably mounted at the bottom of the lifting frame (1), and one end of the threaded rod (4) is fixedly connected with an output shaft of the second motor (10) through a coupler.

4. A segmented beam lifting device according to claim 3, characterized in that the second motor (10) is mounted on the lifting frame (1).

5. A hoisting device for a segmental beam according to claim 3, characterized in that the top of the first installation shell (11) is integrally provided with a sliding block (3), and the hoisting frame (1) is provided with a sliding groove (2) for sliding the sliding block (3).

6. The segmental beam lifting device according to any one of claims 2-5, further comprising a supporting component, wherein the supporting component comprises fixing rods (26), supporting hooks (25) and limiting blocks (24), a plurality of fixing rods (26) are fixed on the edge of the bottom of the first installation shell (11) at equal intervals in a circumferential direction, the number of the fixing rods (26) is equal to that of the lifting ropes (7) and corresponds to that of the lifting ropes one to one, the middle parts of the supporting hooks (25) are hinged to the fixing rods (26), through grooves for the lifting ropes (7) to pass through are formed in the parts, close to the lifting ropes (7), of the supporting hooks (25), and the limiting blocks (24) are detachably arranged between the lifting hooks (8) and the supporting hooks (25).