CN102180405B - Dolly for overhead and gantry cranes - Google Patents

Dolly for overhead and gantry cranes Download PDF

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Publication number
CN102180405B
CN102180405B CN2011101159806A CN201110115980A CN102180405B CN 102180405 B CN102180405 B CN 102180405B CN 2011101159806 A CN2011101159806 A CN 2011101159806A CN 201110115980 A CN201110115980 A CN 201110115980A CN 102180405 B CN102180405 B CN 102180405B
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China
Prior art keywords
reel
reductor
trolley
girder
carriage
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CN2011101159806A
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Chinese (zh)
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CN102180405A (en
Inventor
洪余力
朱剑君
高锋
朱广超
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Ningbo Aotu Heavy Industries Co ltd
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Ningbo Aotu Heavy Industries Co ltd
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Abstract

The invention discloses a dolly for overhead and gantry cranes. A hoisting mechanism comprises a car frame (1), a motor (2), a speed reducer (3), a winding drum (4), a fixed pulley group (5) and a lifting hook (6); the car frame (1) comprises two end beams (1.1) and a main beam (1.2); the end beams (1.1) and the main beam (1.2) form a framework structure; the winding drum (4) is positioned in the framework structure; the winding drum (4) is rotationally installed on the two end beams (1.1); the speed reducer (3) is installed on the side wall of one of the end beams (1.1); a low-speed shaft of the speed reducer (3) is connected with the end part of the winding drum (4) installed on the end beam (1.1); the motor (2) is installed on the side wall of the speed reducer (3); and an output shaft of the motor (2) is connected with a high-speed shaft of the speed reducer (3). The dolly has low height, is convenient to maintain, and has light weight and low energy consumption.

Description

Trolley for gantry crane
Technical field
The present invention relates to a kind of trolley for gantry crane.
Background technology
Overhead and gantry cranes is widely used in the loading and unloading transportation that power plant, goods yard, workshop, harbour etc. carry out bulk cargo.Overhead and gantry cranes mainly comprises steel structure, dolly and electric control system.See also Figure 1 and Figure 2, domestic generally use is the standard dolly of Uniting now, and its lifting mechanism comprises vehicle frame 1 ', motor 2 ', reductor 3 ', reel 4 ', fixed pulley group 5 ' and suspension hook 6 '.Described vehicle frame 1 ' comprises two butt beams 1.1 ' and two girder (not shown), and described end carriage 1.1 ' and Main Girder Welding form framed structure and form a platform 1.2 ' at framework upper end laying flat board.Described motor 2 ', reductor 3 ', reel 4 ' are installed on described platform 1.2 '.Described reel 4 ' is arranged on platform 1.2 ', and an end of reel 4 ' is arranged on the bearing 10 ' that is fixed on platform 1.2 ', and the other end of reel 4 ' is connected with the slow-speed shaft of reductor 3 '.Described motor 2 ' is arranged on the side of reel 4 ', and described motor 2 ' is connected with reductor 3 ' input end by gear coupling 9 ', transmission shaft 8 ' and drg 7 '.Described fixed pulley group 5 ' is arranged on vehicle frame 1 ' upward and is positioned at the below of reel 4 ', and described suspension hook 6 ' is connected with fixed pulley group 5 ' by steel rope.During work, power passes to reductor by motor by gear coupling and transmission shaft, then drives by the reductor mouth reel that is wound with steel rope, as long as control the rotating of electrical motor, just can realize the lifting of suspension hook.There is following defective in the trolley for gantry crane of this kind prior art:
1, because motor, reductor and reel are installed on platform, and described platform is formed framed structure and consisted of dull and stereotyped of framework upper end laying by end carriage and Main Girder Welding, therefore, the dolly whole height is higher, thereby make the building height of the factory building that holds overhead and gantry cranes higher, increase the building cost of factory building.
2, be arranged on vehicle frame due to the fixed pulley group and be positioned at the below of reel, need first remove reel during maintenance fixed pulley group and just can operate, making maintenance fixed pulley group very inconvenient.
3, because described vehicle frame comprises two butt beams and two girders, described end carriage and Main Girder Welding form framed structure and form a platform at framework upper end laying flat board, make the dolly deadweight lay particular stress on, increased like this bearing capacity of crane girder on equal tonnage, also just increased the manufacturing cost of whole hoisting crane, and power consumption is also higher.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of height low, easy to maintenance, the lightweight and low trolley for gantry crane that consumes energy.
Technical solution of the present invention is, a kind of trolley for gantry crane with following structure is provided, and its lifting mechanism comprises vehicle frame, motor, reductor, reel, fixed pulley group and suspension hook; Described vehicle frame comprises end carriage and girder, and described end carriage and girder form framed structure; Described reel is positioned at framed structure, and described reel rotatably is arranged on two butt beams; Described reductor is arranged on the sidewall of a butt beam wherein, and the slow-speed shaft of reductor is connected with the end of reel on being arranged on this end carriage; Described motor is fixed on the sidewall of reductor and the output shaft of this motor is connected with the high speed shaft of reductor.
After adopting above structure, trolley for gantry crane of the present invention compared with prior art has the following advantages:
Because the reel of trolley for gantry crane of the present invention is positioned at framed structure, reductor is arranged on the sidewall of a butt beam wherein, motor is arranged on the sidewall of reductor, trolley for gantry crane compared to existing technology, reduced height, thereby can reduce the building height be used to the factory building that holds overhead and gantry cranes, reduce the building cost of factory building; In addition, save flat board on described vehicle frame, therefore reduced deadweight and the cost of dolly, also saved energy consumption simultaneously.
As a modification of the present invention, described end carriage is two, and described girder is one, and described two butt beams are separately fixed at the two ends of described girder.Compared to existing technology, save a girder, further reduced deadweight and the cost of dolly, also further saved energy consumption simultaneously.
As another kind of improvement the of the present invention, described girder is parallel with described reel; Girder is box girder, and described fixed pulley group is fixed in described girder by bearing pin.After adopting this kind structure, need not to remove reel during maintenance fixed pulley group, just can with the fixed pulley assembling and dismantling from girder, make maintenance fixed pulley group very convenient as long as unclamp bearing pin.
Also has a kind of improvement as of the present invention, the two ends of described reel respectively by the bearing axial limiting and can be arranged on two butt beams with rotating in a circumferential direction, it is the groove that is respectively equipped with on described two butt beams for accommodating bearing brackett, all be fixed with bearing brackett in the groove of described two butt beams, fixed type bearing on bearing brackett, the two ends of described reel connect respectively the sidewall of two butt beams and are arranged on correspondingly on described bearing.The slow-speed shaft of reductor is connected with the end of reel on being arranged on this end carriage and refers to, the end of described slow-speed shaft is provided with male splines, the end that is arranged on the reel on this end carriage is provided with female splines, and described slow-speed shaft connects the end carriage sidewall and described male splines matches with female splines.The further like this dolly whole height and simple in structure that reduced is easily realized.
Also have a kind of improvement as of the present invention, described reductor is fixed on the sidewall of this end carriage by flange.Simple in structure, easily install.
Also have a kind of improvement as of the present invention, described motor is the motor from band brake.Described reductor is provided with sure brake, and the rotor of described sure brake is connected with high speed shaft on reductor.Make dolly safer, more reliable when moving from band brake and sure brake.
Also have a kind of improvement as of the present invention, described reel is the 16Mn steel.The reel of prior art is formed by the cast iron manufacturing, and the quality of 16Mn steel is lighter than cast iron, thereby has further reduced the deadweight of trolley for gantry crane.
Description of drawings
Fig. 1 is the plan structure schematic diagram of the trolley for gantry crane of prior art.
Fig. 2 is the side-looking structural representation of the trolley for gantry crane of prior art.
Fig. 3 is the plan structure schematic diagram of trolley for gantry crane of the present invention.
Fig. 4 is the main TV structure schematic diagram of trolley for gantry crane of the present invention.
Fig. 5 is the left TV structure schematic diagram of trolley for gantry crane of the present invention.
Shown in figure:
Prior art: 1 ', vehicle frame, 1.1 ', end carriage, 1.2 ', platform, 2 ', motor, 3 ', reductor, 4 ', reel, 5 ', the fixed pulley group, 6 ', suspension hook, 7 ', drg, 8 ', transmission shaft, 9 ', gear coupling, 10 ' bearing;
The present invention: 1, vehicle frame, 1.1, end carriage, 1.2, girder, 2, motor, 3, reductor, 4, reel, 5, the fixed pulley group, 6, suspension hook, 7, the adhesion wheel group, 8, the driven wheel group, 9, bearing brackett, 10, flange, 11, sure brake.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
See also Fig. 3, Fig. 4 and shown in Figure 5, trolley for gantry crane of the present invention, its lifting mechanism comprise vehicle frame 1, motor 2, reductor 3, reel 4, fixed pulley group 5, suspension hook 6, adhesion wheel group 7 and driven wheel group 8.Described vehicle frame 1 comprises end carriage 1.1 and girder 1.2, described end carriage 1.1 is two, described girder 1.2 is one, the two ends that described two butt beams 1.1 are separately fixed at described girder 1.2 form framed structure, and the end of described girder 1.2 lays respectively on the medium position of two butt beams 1.1.Described reel 4 is positioned at framed structure and parallel with described girder 1.2.Described reel 4 rotatably is arranged on two butt beams 1.1, in this specific embodiment, the two ends of described reel 4 respectively by the bearing axial limiting and can be arranged on two butt beams 1.1 with rotating in a circumferential direction, it is the groove that is respectively equipped with on described two butt beams 1.1 for accommodating bearing brackett 9, all be fixed with bearing brackett 9 in the groove of described two butt beams 1.1, fixed type bearing on bearing brackett 9, the two ends of described reel 4 connect respectively the sidewall of two butt beams 1.1 and are arranged on correspondingly on described bearing.Described reductor 3 is arranged on the sidewall of a butt beam 1.1 wherein, and the slow-speed shaft of reductor 3 is connected with the end of reel 4 on being arranged on this end carriage 1.1.Described motor 2 is arranged on the sidewall of reductor 3 and the output shaft of this motor 2 is connected with the high speed shaft of reductor 3.Described girder 1.2 is box girder, and described fixed pulley group 5 is fixed in described girder 1.2 by bearing pin.
Described reductor 3 is fixed on the sidewall of this end carriage 1.1 by flange 10.The slow-speed shaft of reductor 3 is connected with the end of reel 4 on being arranged on this end carriage 1.1 and refers to, the end of described slow-speed shaft is provided with male splines, the end that is arranged on the reel 4 on this end carriage 1.1 is provided with female splines, and described slow-speed shaft connects end carriage 1.1 sidewalls and described male splines matches with female splines.Described motor 2 is the motor from band brake, and this motor 2 is fixed on the sidewall of reductor 3 by flange.The mouth of described motor 2 is connected with the high speed shaft of reductor 3 and refers to, be connected by coupler between the high speed shaft of the mouth of described motor 2 and reductor 3, miniature gears perhaps be installed on motor output end directly be connected with the mode of gear cooperation transmission on the reductor high speed shaft.Described reductor 3 is provided with sure brake 11, the rotor of described sure brake 11 is connected with high speed shaft on reductor, be that described rotor is provided with female splines, described high speed shaft is provided with male splines, described male splines matches with female splines, in this specific embodiment, described sure brake is plate disc brake.
Described adhesion wheel group 7 and driven wheel group 8 are arranged on respectively on two butt beams 1.1.Described reel 4 is the 16Mn steel, and adhesion wheel group 7 and driven wheel group 8 are the 40Cr steel.Described vehicle frame 1 is the Q235 steel.

Claims (10)

1. trolley for gantry crane, its lifting mechanism comprises vehicle frame (1), motor (2), reductor (3), reel (4), fixed pulley group (5) and suspension hook (6); Described vehicle frame (1) comprises end carriage (1.1) and girder (1.2), and described end carriage (1.1) and girder (1.2) form framed structure; It is characterized in that: described reel (4) is positioned at framed structure, and described reel (4) rotatably is arranged on two butt beams (1.1); Described reductor (3) is arranged on the sidewall of a butt beam (1.1) wherein, and the slow-speed shaft of reductor (3) is connected with the end of reel (4) on being arranged on this end carriage (1.1); Described motor (2) is arranged on the sidewall of reductor (3) and the output shaft of this motor (2) is connected with the high speed shaft of reductor (3).
2. trolley for gantry crane according to claim 1, it is characterized in that: described end carriage (1.1) is two, described girder (1.2) is one, and described two butt beams (1.1) are separately fixed at the two ends of described girder (1.2).
3. trolley for gantry crane according to claim 2, it is characterized in that: described girder (1.2) is parallel with described reel (4); Girder (1.2) is box girder, and described fixed pulley group (5) is fixed in described girder (1.2) by bearing pin.
4. according to claim 1 or 3 described trolley for gantry cranes is characterized in that: the two ends of described reel (4) respectively by the bearing axial limiting and can be arranged on two butt beams (1.1) with rotating in a circumferential direction.
5. trolley for gantry crane according to claim 4, it is characterized in that: the two ends of described reel (4) are respectively by the bearing axial limiting and can be arranged on two butt beams (1.1) with rotating in a circumferential direction and refer to, be respectively equipped with the groove for accommodating bearing brackett (9) on described two butt beams (1.1), all be fixed with bearing brackett (9) in the groove of described two butt beams (1.1), the upper fixed type bearing of bearing brackett (9), the two ends of described reel (4) connect respectively the sidewall of two butt beams (1.1) and are arranged on correspondingly on described bearing.
6. trolley for gantry crane according to claim 1, it is characterized in that: described reductor (3) is fixed on the sidewall of this end carriage (1.1) by flange (10).
7. trolley for gantry crane according to claim 1, it is characterized in that: the slow-speed shaft of reductor (3) is connected with the end of reel (4) on being arranged on this end carriage (1.1) and refers to, the end of described slow-speed shaft is provided with male splines, the end that is arranged on the reel (4) on this end carriage (1.1) is provided with female splines, and described slow-speed shaft connects end carriage (1.1) sidewall and described male splines matches with female splines.
8. trolley for gantry crane according to claim 1 is characterized in that: described motor (2) is the motor from band brake.
9. according to claim 1 or 8 described trolley for gantry cranes, it is characterized in that: described reductor (3) is provided with sure brake (11), and the rotor of described sure brake (11) is connected with high speed shaft on reductor (3).
10. trolley for gantry crane according to claim 1, it is characterized in that: described reel (4) is the 16Mn steel.
CN2011101159806A 2011-04-29 2011-04-29 Dolly for overhead and gantry cranes Active CN102180405B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011101159806A CN102180405B (en) 2011-04-29 2011-04-29 Dolly for overhead and gantry cranes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011101159806A CN102180405B (en) 2011-04-29 2011-04-29 Dolly for overhead and gantry cranes

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CN102180405A CN102180405A (en) 2011-09-14
CN102180405B true CN102180405B (en) 2013-05-08

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104444805A (en) * 2014-12-08 2015-03-25 重庆吉替起重设备有限公司 Lifting equipment and winch trolley
CN106081901A (en) * 2016-08-10 2016-11-09 河南新科起重机股份有限公司 A kind of novel SMD hoisting trolley
CN107188038A (en) * 2017-05-10 2017-09-22 河南新科起重机股份有限公司 Extreme low-altitude hoisting trolley and crane

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1200075A (en) * 1967-08-09 1970-07-29 J H Carruthers & Company Ltd Improvements in or relating to overhead cranes
CN2641001Y (en) * 2003-06-12 2004-09-15 大连重工·起重集团有限公司 Bogie of bridge crane
DE102004021708A1 (en) * 2004-04-30 2005-11-24 R. Stahl Fördertechnik GmbH Simplified trolley with low building height e.g. for crane system, has chassis with two parallel frame parts and connected by cross beam with two rotary wheels swivellingy stored on associated frame part
CN2775020Y (en) * 2005-02-19 2006-04-26 山东起重机厂有限公司 Crane small cart
CN201809058U (en) * 2010-09-30 2011-04-27 南通润邦重机有限公司 Low-clearance trolley for crane
CN202089687U (en) * 2011-04-29 2011-12-28 宁波市凹凸重工有限公司 Trolley for gantry crane

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1200075A (en) * 1967-08-09 1970-07-29 J H Carruthers & Company Ltd Improvements in or relating to overhead cranes
CN2641001Y (en) * 2003-06-12 2004-09-15 大连重工·起重集团有限公司 Bogie of bridge crane
DE102004021708A1 (en) * 2004-04-30 2005-11-24 R. Stahl Fördertechnik GmbH Simplified trolley with low building height e.g. for crane system, has chassis with two parallel frame parts and connected by cross beam with two rotary wheels swivellingy stored on associated frame part
CN2775020Y (en) * 2005-02-19 2006-04-26 山东起重机厂有限公司 Crane small cart
CN201809058U (en) * 2010-09-30 2011-04-27 南通润邦重机有限公司 Low-clearance trolley for crane
CN202089687U (en) * 2011-04-29 2011-12-28 宁波市凹凸重工有限公司 Trolley for gantry crane

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Address after: 315176 No. 3998, Airport Road, Haishu District, Zhejiang, Ningbo

Patentee after: NINGBO AOTU HEAVY INDUSTRIES Co.,Ltd.

Address before: 3998 Airport Road, Yinzhou District, Ningbo City, Zhejiang Province

Patentee before: NINGBO AOTU HEAVY INDUSTRIES Co.,Ltd.

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