CN102826458B

CN102826458B - Energy-saving and consumption-reducing bridge crane

Info

Publication number: CN102826458B
Application number: CN201210345849.3A
Authority: CN
Inventors: 游伯明; 游远平; 刘大维
Original assignee: YIBIN YUANPING MACHINERY MANUFACTURING CO LTD
Current assignee: YIBIN YUANPING MACHINERY MANUFACTURING CO LTD
Priority date: 2012-09-18
Filing date: 2012-09-18
Publication date: 2014-07-09
Anticipated expiration: 2032-09-18
Also published as: CN102826458A

Abstract

The invention discloses a bridge crane comprising two girders, and a crane cart and a crane car on both ends; the crane is characterized in that the horizontal widths of the upper cover plates of the girders are 950+/-2mm, and the web heights of the girders are 1150+/-2mm; rails are arranged on the upper cover plates of the two girders; the rails are arranged at eccentric positions on the upper cover plates of the girders; and the spacing between the centers of the rails and the upper wing edges of the inner webs of the girders is 110mm to 170mm. The energy-saving and consumption-reducing bridge crane comprises following positive effects, such as, the self horizontal stiffness of the whole crane is improved, the self-weight is reduced by 25 percent, so that steel resources are saved while the safety and lifting capability are ensured. Consequently, the motor power is reduced, and the energy consumption is reduced by 36.5 percent. In addition, the transmission method of the crane abandons an original complicated and heavy transmission system, so that the transmission method is simplified, and the self-weight is further reduced by 25 percent to 30 percent. Similarly, benefiting from the change of the transmission method, the overhaul and the part changing of a crane car transmission system are safer and quicker.

Description

A kind of crane in bridge type

Technical field

The present invention relates to a kind of elevator machinery, concretely, relate to a kind of Novel electric double-beam bridge crane.

Background technology

Crane in bridge type is the extraordinary weight-lifting equipment that carries out material handling across being set up in workshop, warehouse and overhead, stock ground.Because its two ends are seated on tall and big concrete column or metallic support, shape, like bridge, therefore claim crane in bridge type, is commonly called as " driving ".The crane span structure girder of crane in bridge type is laid on the track of both sides on overhead and longitudinally moves, and can make full use of the space handling material below crane span structure, is not subject to the obstruction of wayside equipment.It is a kind of elevator machinery that range of use is wide, quantity is many.

Due to historical reason, the mentality of designing of the crane in bridge type that China continues to use so far and architectural feature are all the technical standards of the former Soviet Union that last century, the fifties was introduced of continuing to use, up to now, the design manual of the industry, all without exception be old Soviet Union formula specification.

Old product in the past, from use angle, without any problem, this is also that researchist is not more devoted to structural improved reason.But the epoch have evolved more than 60 years, said structure, the disadvantage coming out is exactly heavy, loaded down with trivial details, so both wasted resource, increased again productive costs, the existing New overhead travelling crane going out by our new concept Design and manufacture, is ensureing under the prerequisite of equal hoisting capacity and safety, can make complete machine weight reduction 26%, energy-conservation 36.5%.So just more meet the requirement of Resources for construction economizing type, environmentally friendly nation-building, strengthen the requirement of the capability of sustainable development.

Our mentality of designing is aimed at following several respects expansion:

The one, the weight of walking on stage on girder: the old product that the existing whole nation produces, two girders are the high narrow structures that adopt, the plane on its top just set up after crane carriage without any space, change the demands such as part in order to meet maintenance, must leave service personnel walks on stage, the solution of tradition Vintage Product is exactly in two girder outsides, steel plate to be installed to walk on stage, and is linked on girder.Walk on stage and the weight of Holder Fasteners part has 6.8 tons (hoisting crane with 10 tons of hoisting capacities calculates), steel and work step take 9000 yuan per ton of price, and that price of walking on stage is 61200 yuan.

The 2nd, end carriage wheel drive system: traditional hoisting crane, on girder, be provided with motor, retarder, drg, coupler, brake wheel, be used for driving the wheel walking on traditional Vintage Product end carriage, the weight of the transmission device at the above two ends self has 3.7 tons.In addition, such drawback is, the technique assembling process of very complicated, and its cost increases more than 20% naturally.

Summary of the invention

The object of this invention is to provide a kind of crane in bridge type to make up the deficiency of prior art performance.

The present invention is that the technical scheme that realizes object employing is: a kind of crane in bridge type, comprise crane and the monkey at two girders, two ends, it is characterized in that: a kind of crane in bridge type, comprise crane and the monkey at two girders, two ends, it is characterized in that: the horizontal clearance of girder upper cover plate is 950mm ± 2mm, girder web plate height is 1150mm ± 2mm; On two girder upper cover plates, be all provided with the wheel walking of track for monkey, track is at girder upper cover plate in eccentric position, and the spacing of orbit centre and girder endosternum top flange is 110mm; Girder outer ledge and monkey outer ledge have the space of 780mm; Crane is provided with integrated driving system, and the motor of cart is directly installed on the kinetic energy input end of integrated change-speed box, and the kinetic energy mouth of integrated change-speed box drives wheel; The wheelspan of crane carriage is 2500mm, and width is 3600mm, is also provided with integrated driving system on crane carriage, and the motor of dolly is directly installed on the kinetic energy input end of integrated change-speed box, and the kinetic energy mouth of integrated change-speed box drives wheel.

Good effect of the present invention is: strengthened the horizontal rigidity of body self, greatly reduced deadweight, in ensureing safety and load-carrying ability, saved steel resources.Thereby further reduce power of motor, reduced energy consumption.In addition, the type of drive of the machine has been abandoned the transmission device that original heaviness is loaded down with trivial details, has simplified type of drive, makes deadweight obtain further alleviating.Have benefited from equally the change of type of drive, make crane carriage driving system and electric-control system maintenance, change part safety and quick more.

Brief description of the drawings

Fig. 1 is the structural representation of the embodiment of the present invention;

Fig. 2 is the lateral plan of Fig. 1;

Fig. 3 is the birds-eye view of Fig. 1;

Fig. 4 is the schematic diagram of monkey;

Fig. 5 is the schematic diagram of integrated change-speed box.

Detailed description of the invention

Embodiment 1:

In the drawings: 1 is girder, 2 is crane, and 3 is monkey, and 4 is track, 5 is the wheel of monkey, 6 integrated change-speed boxs, 7 is motor, 8 wheels that are crane, 9 is motor, 10 integrated change-speed boxs, 12 is the kinetic energy input end of change-

speed box

6,10,13 is the kinetic energy mouth of change-

speed box

6,10.

The occupation mode of this enforcement and scope are identical with the old-fashioned crane in bridge type of tradition in the past, and below we describe being related to our thinking of innovation emphatically:

Part about girder 1:

Structure originally: a wide 450mm of girder, track is arranged on the axial center of girder, spacing between track and girder upper cover plate is all 225mm, so, monkey (monkey wheelspan 2500mm has been installed on girder, monkey the widest part size 3600mm) after, the outer ledge of monkey is just substantially concordant with the outer ledge of girder.For the ease of personnel's walking, be just outside equipped with steel plate in girder outer rim and walk on stage to walk.

The structure of the present embodiment: girder 1 width is set to 950mm, and install eccentric track 4, the spacing of track 4 centers and girder 1 endosternum top flange is 110mm, due to monkey 3 size constancies (wheelspan 2500mm, wide 3600mm), install like this, girder 1 outer ledge and monkey 3 outer ledges also have the space of 780mm, enough, for people's walking, have so just saved the material of walking on stage, by because having alleviated from weight 25%, so its technical performance has strengthened.

The benefit of bringing after girder 1 width is increased also shows the horizontal rigidity of complete machine is increased.

Driver train about crane:

Original design is to install and be provided with horizontal transmission device (motor, retarder, transmission shaft, drg, coupler) on girder two ends, be used for driving the walking of wheel on crane, above-described loaded down with trivial details transmission device, its deadweight just have more than 3.7 tons.

The structure of existing new design is to have cancelled original motor, retarder, transmission shaft, drg, brake wheel, coupler, on crane, integrated change-speed box 10 is installed on 2, motor 9 is directly installed on the kinetic energy input end 12 of integrated change-speed box 10, meanwhile, the kinetic energy mouth 13 of integrated change-speed box drives wheel 8.Originally heavy loaded down with trivial details horizontal transmission device is cancelled, and the manufacturing cost that this just can reduce hoisting crane has alleviated hoisting crane deadweight simultaneously.

The weight that above two parts alleviate accounts for the 25-30% of original like product, so corresponding, the rating horsepower of motor 9 also can reduce by 36.5%.We are calculated as example with the hoisting crane oepration at full load of 50 tons of hoisting capacities: originally conduct oneself with dignity 43 tons, cart operation motor 9 power are 22kw, and power consumption 22 per hour is spent.And conduct oneself with dignity now 32 tons, and motor 9 power are 15kw, calculate by power consumption 15 degree per hour, electricity 7 degree of saving per hour, and visible, energy-saving effect is very obvious.

Driver train about monkey:

The wheel of original monkey is to rely on a ZSC600 type vertical type speed reducer (change gear) and 7.5KW motor, transmission shaft, coupler, brake wheel, drg to drive, such drawback is, assembly technology program complexity is loaded down with trivial details, owing to being that (this driving system is vacant state in aloft work, lower to base plate), once overhaul or change parts, will increase the difficulty of dismounting, be also unfavorable for safety.

Existing structure is the driving system of having cancelled overhanging portion, but integrated change-speed box 6 is installed on monkey 3, motor 7(power is 6KW) be directly installed on the kinetic energy input end 12 of integrated change-speed box 6, meanwhile, the kinetic energy mouth 13 of integrated change-speed box 6 drives wheel 5.Such benefit is simplify and omitted the Installation and Debugging program that original driving system is loaded down with trivial details, and the action of dismounting and mounted motor 7 is only to twist bolt.

Embodiment 2:

Keystone configuration and manner of execution are with embodiment 1, and difference is that the spacing of track 4 centers and girder 1 endosternum top flange is 170mm, and like this, girder 1 outer ledge and monkey 3 outer ledges also have the space of 750mm, also can be for people's walking.

Claims

1. a crane in bridge type, comprises and it is characterized in that crane and the monkey at two girders, two ends: the horizontal clearance of girder upper cover plate is 950 mm ± 2mm, girder web plate height is 1150 mm ± 2mm; On two girder upper cover plates, be all provided with the wheel walking of track for monkey, track is at girder upper cover plate in eccentric position, and the spacing of orbit centre and girder endosternum top flange is 110 mm; Girder outer ledge and monkey outer ledge have the space of 780mm; Crane is provided with integrated driving system, and the motor of cart is directly installed on the kinetic energy input end of integrated change-speed box, and the kinetic energy mouth of integrated change-speed box drives wheel; The wheelspan of crane carriage is 2500mm, and width is 3600mm, is also provided with integrated driving system on crane carriage, and the motor of dolly is directly installed on the kinetic energy input end of integrated change-speed box, and the kinetic energy mouth of integrated change-speed box drives wheel.