CN215326547U - Double-lifting-point double-main-beam bridge crane - Google Patents

Double-lifting-point double-main-beam bridge crane Download PDF

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Publication number
CN215326547U
CN215326547U CN202122942663.3U CN202122942663U CN215326547U CN 215326547 U CN215326547 U CN 215326547U CN 202122942663 U CN202122942663 U CN 202122942663U CN 215326547 U CN215326547 U CN 215326547U
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double
wall
worm
trolley shell
lifting
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CN202122942663.3U
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Chinese (zh)
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毛庆华
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Henan Shengyuan Hoisting Machinery Co ltd
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Henan Shengyuan Hoisting Machinery Co ltd
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Abstract

The utility model discloses a double-lifting-point double-girder bridge crane which comprises a truss, wherein two travelling mechanisms are arranged at the top of the truss, two girders are welded between the two travelling mechanisms, a trolley shell is arranged at the top of the girders, rotating shafts are connected between the inner walls of the two sides of the trolley shell through bearings, worm wheels are welded in the middle of the rotating shafts, two ends of each rotating shaft respectively extend to the outer part of the trolley shell and are connected with a winding wheel through bolts, the outer wall of the top of the trolley shell is connected with a first motor through bolts, one end of an output shaft of the first motor is connected with a worm through a flat key, the worm is meshed with the worm wheel, a connecting rope is wound outside the winding wheel, and a hook is arranged at the bottom end of the connecting rope. The worm is driven by the motor to rotate, so that the worm drives the two winding wheels to synchronously wind the connecting rope through the rotating shaft, and the heavy object is hoisted by the crane with double hoisting points, so that the crane has a more stable effect when hoisting the heavy object.

Description

Double-lifting-point double-main-beam bridge crane
Technical Field
The utility model relates to the technical field of cranes, in particular to a double-lifting-point double-main-beam bridge crane.
Background
A double girder bridge crane is one type of crane having two girders welded to each other, with a traveling trolley and a hoisting mechanism on the girders, so that heavy objects can be hoisted and moved.
The double-girder bridge crane in the prior art has only one lifting point, so that the heavy object is easy to rotate when lifted, and when lifted and moved, the heavy object is not easy to slip due to insufficient friction force of wheels of the trolley, so that the movement of the heavy object is unstable. Therefore, it is desirable to design a dual-suspension-point dual-girder bridge crane to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defect that the lifting and moving of heavy objects are unstable in the prior art, and provides a double-lifting-point double-main-beam bridge crane.
In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a two girder bridge crane of two hoisting points, includes the truss, the top of truss is provided with two running gear, two the welding has two girders between the running gear, the top of girder is provided with the dolly shell, be connected with the pivot through the bearing between the both sides inner wall of dolly shell, the middle part welding of pivot has the worm wheel, there is the rolling wheel at the outside that the both ends of pivot extend to the dolly shell respectively through bolted connection, there is first motor top outer wall of dolly shell through bolted connection, the output shaft one end of first motor is connected with the worm through the parallel key, worm and worm wheel meshing, the outside winding of rolling wheel has the connection rope, the bottom of connecting the rope is provided with the couple.
Furthermore, the outer wall of the bottom of the trolley shell is provided with supporting wheels through bolts, the top of the girder is provided with a track groove, and the supporting wheels are located inside the track groove.
Furthermore, the outer wall of the bottom of the trolley shell is connected with two traveling gears through bearings, a connecting shaft of each traveling gear penetrates through the outer wall of the bottom of the trolley shell, a side gear is welded at the tail end of the connecting shaft, the outer wall of the top of the trolley shell is connected with a second motor through bolts, one end of an output shaft of the second motor is connected with a central gear through a flat key, and the central gear is meshed with the two side gears respectively.
Furthermore, the outer walls of the bottoms of the two girders are connected with racks through bolts, and the two walking gears are respectively meshed with the two racks.
Furthermore, an oil inlet nozzle is welded on the outer wall of one side of the trolley shell, and a sealing cover is connected inside the oil inlet nozzle through threads.
Furthermore, the outer wall of one side of the traveling mechanism is connected with a limiting plate through a bolt, and the outer wall of one side of the limiting plate is connected with a rubber column through a bolt.
Furthermore, the outer wall of the bottom of the truss is connected with uniformly distributed stand columns through bolts, and mounting plates are welded at the bottom ends of the stand columns.
The utility model has the beneficial effects that:
1. through the worm wheel, the worm and the rotating shaft which are arranged, the motor is utilized to drive the worm to rotate, the worm drives two rolling wheels through the rotating shaft to synchronously roll the connecting rope, the lifting appliance for lifting heavy objects has double lifting points, and therefore the effect that the crane is more stable when lifting the heavy objects is achieved.
2. Through the central gear, the side gear and the walking gear that set up, utilize the rotation of central gear to drive the side gear and the walking gear rotates, and then make the walking gear drive the dolly shell through the meshing with the rack and remove for the heavy object is more stable when removing.
3. Through the oil inlet nozzle and the sealing cover that set up, utilize oil inlet nozzle and sealed lid to make the inside of dolly shell can add lubricating oil, and then make between worm wheel and the worm, wearing and tearing when carrying out the meshing transmission between sun gear and the side gear reduce, and then make the life extension of hoist.
4. Through limiting plate and the rubber column that sets up, utilize the limiting plate to make running gear can not take place the phenomenon that breaks away from with the frame of navigating when carrying out the form, make running gear can not take place direct striking when being close the edge of truss through the rubber column, and then make the use of hoist safer.
Drawings
Fig. 1 is a schematic overall structure diagram of a double-hoisting-point double-main-beam bridge crane according to the present invention;
FIG. 2 is a schematic structural diagram of a trolley shell of a double-hoisting-point double-girder bridge crane according to the present invention;
FIG. 3 is a schematic view of a traveling gear structure of a double-hoisting-point double-girder bridge crane according to the present invention;
fig. 4 is an enlarged view of a position a of the double-lifting-point double-main-beam bridge crane provided by the utility model.
In the figure: the device comprises a truss 1, a girder 2, a traveling mechanism 3, a trolley shell 4, an oil inlet nozzle 5, a sealing cover 6, a rotating shaft 7, a worm wheel 8, a worm 9, a first motor 10, a winding wheel 11, a connecting rope 12, a hook 13, a second motor 14, a central gear 15, a side gear 16, a traveling gear 17, a supporting wheel 18, a rack 19, a track groove 20, a limiting plate 21, a rubber column 22, an upright column 23 and an installation plate 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a double-hoisting-point double-girder bridge crane comprises a truss 1, two traveling mechanisms 3 are arranged at the top of the truss 1, the traveling mechanisms 3 travel on the truss 1, in the prior art, two girders 2 are welded between the two traveling mechanisms 3, the girders 2 are girders of the crane, a trolley shell 4 is arranged at the top of the girders 2, a rotating shaft 7 is connected between the inner walls of the two sides of the trolley shell 4 through bearings, a worm wheel 8 is welded at the middle part of the rotating shaft 7, two ends of the rotating shaft 7 respectively extend to the outside of the trolley shell 4 and are connected with a winding wheel 11 through bolts, the outer wall of the top of the trolley shell 4 is connected with a first motor 10 through bolts, the model of the first motor 10 is CH-28, one end of an output shaft of the first motor 10 is connected with a worm 9 through a flat key, the worm 9 is meshed with the worm wheel 8, a connecting rope 12 is wound outside the winding wheel 11, the bottom of connecting rope 12 is provided with couple 13, drives worm 9 through the motor and rotates for worm 9 drives two wind-up pulleys 11 through pivot 7 and carries out synchronous rolling to connecting rope 12, makes having two hoisting points of lifting by crane of heavy object, and is more stable when consequently having realized that the hoist lifts by crane heavy object.
Further, supporting wheel 18 is installed through the bolt to the bottom outer wall of dolly shell 4, and the top of girder 2 is provided with track groove 20, and supporting wheel 18 is located the inside of track groove 20, utilizes supporting wheel 18 to support dolly shell 4 to provide the wheel of motion, the bottom outer wall of truss 1 has evenly distributed's stand 23 through bolted connection, and the bottom welding of stand 23 has mounting panel 24.
Further, the outer wall of the bottom of the trolley shell 4 is connected with two walking gears 17 through bearings, a connecting shaft of the walking gears 17 penetrates through the outer wall of the bottom of the trolley shell 4, side gears 16 are welded at the tail ends of the connecting shaft, the outer wall of the top of the trolley shell 4 is connected with a second motor 14 through bolts, one end of an output shaft of the second motor 14 is connected with a central gear 15 through a flat key, the central gear 15 is respectively meshed with the two side gears 16, the outer walls of the bottoms of the two girders 2 are connected with racks 19 through bolts, the two walking gears 17 are respectively meshed with the two racks 19, the central gear 15 is driven to rotate by the second motor 14, so that the rotation of the central gear 15 drives the side gears 16 and the traveling gear 17 to rotate, and then the travelling gear 17 drives the trolley shell 4 to move through the meshing with the rack 19, so that the heavy object is more stable when moving.
Further, the outer wall of one side of the trolley shell 4 is welded with an oil inlet nozzle 5, the inside of the oil inlet nozzle 5 is connected with a sealing cover 6 through threads, lubricating oil can be added into the inside of the trolley shell 4 through the oil inlet nozzle 5 and the sealing cover 6, and then abrasion between the worm wheel 8 and the worm 9 and between the middle gear and the side gear 16 during meshing transmission is reduced.
Further, there is limiting plate 21 one side outer wall of running gear 3 through bolted connection, and there is rubber column 22 one side outer wall of limiting plate 21 through bolted connection, and limiting plate 21 makes running gear 3 can not take place the phenomenon that breaks away from with the boat frame when carrying out the form, makes running gear 3 can not take place direct striking when being close the edge of truss 1 through rubber column 22.
The working principle of the utility model is as follows: when the trolley is used, the sealing cover 6 is rotated, lubricating oil is added into the trolley shell 4, when a heavy object needs to be lifted, the two hooks 13 are hooked on two points of the heavy object, the power supply of the first motor is connected through a wire, the first motor drives the worm 9 to rotate, the rotation of the worm 9 drives the worm wheel 8 to rotate, the worm wheel 8 drives the rotating shaft 7 to rotate, the rotating shaft 7 drives the two winding wheels 11 to wind the connecting ropes 12, the two connecting ropes 12 synchronously lift the heavy object, when the heavy object needs to be moved, the power supply of the second motor 14 is connected through a wire, the second motor 14 drives the central gear 15 to rotate, the central gear 15 drives the two side gears 16 to rotate, the side gears 16 drive the traveling gears 17 to rotate, and the traveling gears 17 are meshed with the racks 19, thereby realizing the movement of the heavy object.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (7)

1. A double-hoisting-point double-girder bridge crane comprises a truss (1) and is characterized in that two traveling mechanisms (3) are arranged at the top of the truss (1), two girders (2) are welded between the two traveling mechanisms (3), a trolley shell (4) is arranged at the top of each girder (2), rotating shafts (7) are connected between the inner walls of the two sides of the trolley shell (4) through bearings, worm wheels (8) are welded in the middle of the rotating shafts (7), the two ends of each rotating shaft (7) extend to the outer portion of the trolley shell (4) respectively and are connected with winding wheels (11) through bolts, the outer wall of the top of the trolley shell (4) is connected with a first motor (10) through bolts, one end of an output shaft of the first motor (10) is connected with a worm (9) through a flat key, and the worm (9) is meshed with the worm wheels (8), the outside winding of rolling wheel (11) has connection rope (12), the bottom of connecting rope (12) is provided with couple (13).
2. The double-lifting-point double-girder bridge crane according to claim 1, wherein the outer wall of the bottom of the trolley shell (4) is provided with a support wheel (18) through a bolt, the top of the girder (2) is provided with a rail groove (20), and the support wheel (18) is positioned inside the rail groove (20).
3. The double-lifting-point double-girder bridge crane according to claim 1, wherein the outer bottom wall of the trolley shell (4) is connected with two traveling gears (17) through bearings, a connecting shaft of the traveling gears (17) penetrates through the outer bottom wall of the trolley shell (4) and a side gear (16) is welded at the tail end of the connecting shaft, the outer top wall of the trolley shell (4) is connected with a second motor (14) through bolts, one end of an output shaft of the second motor (14) is connected with a central gear (15) through a flat key, and the central gear (15) is respectively meshed with the two side gears (16).
4. A double-lifting-point double-girder bridge crane according to claim 3, wherein the outer walls of the bottoms of the two girders (2) are connected with racks (19) through bolts, and the two traveling gears (17) are respectively engaged with the two racks (19).
5. The double-lifting-point double-main-beam bridge crane according to claim 1, wherein an oil inlet nozzle (5) is welded to the outer wall of one side of the trolley shell (4), and a sealing cover (6) is connected to the inside of the oil inlet nozzle (5) through threads.
6. The double-lifting-point double-girder bridge crane according to claim 1, wherein the outer wall of one side of the traveling mechanism (3) is connected with a limiting plate (21) through a bolt, and the outer wall of one side of the limiting plate (21) is connected with a rubber column (22) through a bolt.
7. The double-lifting-point double-main-beam bridge crane according to claim 1, wherein the bottom outer wall of the truss (1) is connected with evenly distributed columns (23) through bolts, and the bottom ends of the columns (23) are welded with mounting plates (24).
CN202122942663.3U 2021-11-29 2021-11-29 Double-lifting-point double-main-beam bridge crane Active CN215326547U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122942663.3U CN215326547U (en) 2021-11-29 2021-11-29 Double-lifting-point double-main-beam bridge crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122942663.3U CN215326547U (en) 2021-11-29 2021-11-29 Double-lifting-point double-main-beam bridge crane

Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114873480A (en) * 2022-07-11 2022-08-09 中建五局第三建设有限公司 Gantry crane for construction site

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114873480A (en) * 2022-07-11 2022-08-09 中建五局第三建设有限公司 Gantry crane for construction site

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