CN207002049U - A kind of FWD types handling nuclear fuel bridge crane - Google Patents

Abstract

A kind of FWD types handling nuclear fuel bridge crane, including crane transverse beam device and motor driving；Crane steel structure girder；Electric control system；Trolley；Crane service walkway；Trolley service cable；Driver's cabin and crane feed system maintenance cage, wherein, the one side of the crane transverse beam includes four groups of wheel groups, the one group of active wheels and three groups of driven wheels being respectively connected with motor driving, the wheel group is fixed by eccentric adjustable bearing split bearing case with crane transverse beam, can solve the problems, such as that gnawing rail phenomenon and can not adjusting occur afterwards for a period of time in conventional whole machine installation good luck row very well.The crane has deadweight light, and wheel load is small, and complete machine is highly small, can effectively meet client's factory building low clearance requirement, especially for newly factory building is made, on the basis of requirement is met, substantially reduces factory building height, fundamentally reduces the project cost of client.

Description

A kind of FWD types handling nuclear fuel bridge crane

Technical field

It the utility model is related to crane gear field, and in particular to a kind of FWD types handling nuclear fuel bridge crane.

Background technology

With the rapid development of China's economy, the flourishing as never before of nuclear power industry is promoted.As the important of handling nuclear fuel Equipment, the demand in FWD type handling nuclear fuel bridge cranes market are very vigorous.Fed back through houses market department, in this type In crane market, as middle or small weight（Gn≤50t）, working level（M5 and following）Crane gear occupy it is sizable Proportion, development prospect are wide.According to the situation of Market Feedback, preparing R ＆ D design has the handling core combustion of higher configured for research and development department Expect bridge crane, it is reliable its object is to provide a kind of low noise, low energy consumption, simple and convenient operation and maintenance, performance safety for market Handling nuclear fuel bridge crane.The crane has deadweight light, and wheel load is small, and complete machine is highly small, can effectively meet client The requirement of factory building low clearance, especially for newly factory building is made, on the basis of requirement is met, substantially reduces factory building height, from root The project cost of client is reduced in sheet.The advantage more incomparable than domestic similar crane is embodied, is had in market competition Absolute advantage.

As the visual plant of handling nuclear fuel, field of employment is special, and safety requirements is high, it is desirable to which assembly precision is high, positioning Accurately.Once break down or accident can cause very big economic loss and serious consequence.Because domestic handling nuclear fuel bridge-type rises Heavy-duty machine from it is great, motor noise is big, fault rate is higher, and energy consumption is big, less economical, from the angle of cost, Operation and Maintenance and safety Degree sets out, and client's centering, the requirement of crane gear of small lifting capacity are equipment operation easy maintenance, low noise, low energy consumption and peace It is complete reliable.So as to develop a kind of low noise, low energy consumption, simple and convenient operation and maintenance, performance safety reliable handling nuclear fuel bridge-type Heavy-duty machine is clearly necessary.

The content of the invention

The utility model crane has deadweight light, and wheel load is small, and complete machine is highly small, can effectively meet that client's factory building is low Clearance requirement, especially for newly factory building is made, on the basis of requirement is met, factory building height is substantially reduced, is fundamentally dropped The project cost of low client.The advantage more incomparable than domestic similar crane is embodied, is had definitely in market competition Advantage, lift company competitiveness.

To achieve the above object, the utility model provides following technical scheme：A kind of FWD types handling nuclear fuel overhead traveling crane Machine, including crane transverse beam；Motor driver；Crane steel structure girder；Electric control system；Trolley；Crane Service walkway；Trolley service cable;Driver's cabin and crane feed system maintenance cage.Wherein, the crane is horizontal The one side of beam includes four groups of wheel groups, and the one group of active wheels and three groups of driven wheels being respectively connected with motor driving are described Wheel group is fixed by eccentric adjustable bearing split bearing case with crane transverse beam, after solving conventional whole machine installation good luck row very well for a period of time The problem of appearance is gnawed rail phenomenon and can not adjusted, the solid shafting helical teeth turbin generator driving dress parallel with hollow shaft of the active wheels Connected between putting using flat key, cooperation is compact, and dismounting is easy to maintenance, and stable drive is not easy off-axis.

Further, the wherein wheel group uses eccentric adjustable bearing housing, and it is good to solve conventional whole machine installation very well There is the problem of gnawing rail phenomenon and can not adjusting after operation a period of time.

Further, the crane steel structure girder is bias-rail box girder, has good strength and stiffness.

Further, the electrical apparatus control system realizes both of which requirement, particular job pattern and normal work by PLC Operation mode.Both of which is controlled by change-over switch, and sets anti-error behaviour's function.

Further, the trolley includes roll device, variable-frequency motor, reduction box, suspension hook group and trolley frame composition.

Further, deadman's brake is set on the lifting mechanism reel, be provided with decelerator service brake and Support brake.

Further, fixed pulley group lower margin is installed, and is sitting at the top of trolley trolley frame, will be slided surely relative to conventional design Wheel group is placed in inside trolley frame, makes full use of space, convenient for installation and maintenance, and assembly pulley support base is specified in the lower margin installation It is connected between trolley trolley frame by high-strength bolt group.

Operation principle of the present utility model is：Liquid braking device closes when mechanism does not work under normal circumstances, supports braking Device lags behind service brake.When the detecting system of deadman's brake detect motor or reel 110% exceed the speed limit, driving-chain Damage or power failure or accident power-off, control system control deadman's brake brake application immediately, ensure any one part on driving-chain Deadman's brake can brake reel after failure, so as to ensure that allocated and transported load will not fall because of contingency.

Compared with prior art, the beneficial effects of the utility model are the utility model：The crane has deadweight light, takes turns Press small, complete machine is highly small, can effectively meet that client's factory building opens Clearance requirement, especially for newly factory building is made, is meeting to use On the basis of it is required that, factory building height is substantially reduced, fundamentally reduces the project cost of client.Also, as handling nuclear fuel Crane, the crane have lifting location accuracy high, reliability and it is safe the characteristics of, can slowly transfer handling thing Body, while maltilevel security device is set, the advantage more incomparable than domestic similar crane is embodied, is had in market competition Absolute advantage, lift company competitiveness.

Brief description of the drawings

Fig. 1 is the structural representation of crane described in the utility model；

Fig. 2 is Fig. 1 side view；

Fig. 3 is the structural representation of crane transverse beam；

Fig. 4 is the structural representation of brake；

Fig. 5 is fixed pulley group scheme of installation；

In figure：1st, crane transverse beam, 2, crane steel structure girder, 3, electric control system, 4, trolley, 5, lifting Machine service walkway, 6, trolley service cable, 7, driver's cabin, 8, crane feed system maintenance cage, 9, driving wheel, 10, Driven pulley, 11, deadman's brake, 12, service brake, 13, support brake.14th, fixed pulley group.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

As shown in Figure 1-2, it is a kind of FWD types handling nuclear fuel bridge crane, by crane transverse beam 1；Motor drives；Rise Heavy-duty machine steel construction girder 2；Electric control system 3；Trolley 4；Crane service walkway 5；Trolley service cable 6;Drive Sail room 7；Crane feed system maintenance cage 8 forms.

Wherein, as shown in figure 3, crane transverse beam 1 is using unilateral 4 groups of wheel groups, including one group of active wheels and three groups it is driven Wheel group；Wheel load can be effectively distributed in the case of same lift heavy, meets to reduce beam device on the premise of intensity and rigidity Whole height.Wheel group uses eccentric adjustable bearing housing, can solve conventional whole machine installation good luck row very well and go out afterwards for a period of time The problem of now gnawing rail phenomenon and can not adjusting.

Trolley sets 3 sets of brake apparatus altogether：Deadman's brake 11 is set on lifting mechanism reel, and lifting motor uses One variable-frequency motor, brake use hydraulic block formula double brake（Service brake 12 is with supporting brake 13）.Brake is mounted in On the high speed shaft of decelerator.Operation principle：Liquid braking device closes when mechanism does not work under normal circumstances, supports brake hysteresis In service brake.When the detecting system of deadman's brake detect motor or reel 110% exceed the speed limit, driving-chain damage or Have a power failure or accident power-off, control system control deadman's brake brake application immediately, ensure on driving-chain after any one part failure Deadman's brake can brake reel, so as to ensure that allocated and transported load will not fall because of contingency.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (8)

1. A kind of 1. FWD types handling nuclear fuel bridge crane, it is characterised in that：Including crane transverse beam；Motor driver；Rise Heavy-duty machine steel construction girder；Electric control system；Trolley；Crane service walkway；Trolley service cable；Driver's cabin with And crane feed system maintenance cage；

   Wherein, the one side of the crane transverse beam includes four groups of wheel groups, one group of active wheels being respectively connected with motor driving And three groups of driven wheels, the wheel group are fixed by eccentric adjustable bearing split bearing case with crane transverse beam, can solve very well in the past whole There is the problem of gnawing rail phenomenon and can not adjusting after installing operation a period of time in machine, the solid shafting of the active wheels with it is hollow Connected between the parallel helical gear motor driver of axle using flat key, cooperation is compact, and dismounting is easy to maintenance, and stable drive is not easily broken Axle.
2. A kind of 2. FWD types handling nuclear fuel bridge crane according to claim 1, it is characterised in that：The lifting is small The wheel group of car uses eccentric adjustable bearing housing, can solve conventional whole machine installation good luck row very well and occur gnawing rail afterwards for a period of time Phenomenon and the problem of can not adjust.
3. A kind of 3. FWD types handling nuclear fuel bridge crane according to claim 1, it is characterised in that：The crane Steel construction girder is bias-rail box girder, has good strength and stiffness.
4. A kind of 4. FWD types handling nuclear fuel bridge crane according to claim 1, it is characterised in that：The electric-controlled System processed realizes both of which requirement, particular job pattern and normal mode of operation by PLC；Both of which is by change-over switch control System, and anti-error behaviour's function is set.
5. A kind of 5. FWD types handling nuclear fuel bridge crane according to claim 1 or 2, it is characterised in that：The lifting Dolly includes roll device, variable-frequency motor, reduction box, suspension hook group and trolley frame.
6. A kind of 6. FWD types handling nuclear fuel bridge crane according to claim 5, it is characterised in that：The lifting is small Car is provided with 3 sets of brake apparatus.
7. A kind of 7. FWD types handling nuclear fuel bridge crane according to claim 6, it is characterised in that：The braking dress The deadman's brake including being arranged on roll device is put, the service brake and support brake being arranged on reduction box.
8. A kind of 8. FWD types handling nuclear fuel bridge crane according to claim 5, it is characterised in that：Also include fixed sliding Wheel group, the fixed pulley group are disposed therein the top of trolley frame.