CN207451464U - A kind of trestle crane running gear - Google Patents

Abstract

A kind of trestle crane running gear, including crossbeam, crossbeam lower end is equipped with idler wheel and driving device corresponding with idler wheel, the crossbeam is equipped with cleaning agency, cleaning agency includes an air compressor and two air jet systems for being respectively arranged at crossbeam rear and front end, air jet system includes the driving motor and gearbox that are fixed on crossbeam, gearbox includes housing, worm screw, first transmission shaft, second driving shaft and the 3rd transmission shaft, worm screw is horizontally disposed with, worm screw is driven by driving motor, first transmission shaft, second driving shaft and the 3rd transmission shaft are vertically arranged, first transmission shaft, second driving shaft and the 3rd transmission shaft are connected with housing into rotation.

Description

A kind of trestle crane running gear

Technical field

The utility model is related to lifting equipment more particularly to trestle crane running gears.

Background technology

Gantry crane includes walking mechanism, supporting beam, crossbeam and suspender, and walking mechanism is generally all corresponding with walking rail Road, the idler wheel of walking mechanism are walked in walking track, due to gantry crane stable structure, can bear relatively large load, therefore Some large-tonnage objects are generally all using gantry crane as lifting equipment, for example when repairing bridge, box beam is generally in processing factory It completes, is then transported again by transport vehicle to installation site, since box beam tonnage is larger, generally all use gantry crane It is lifted by crane, since processing factory's inner concrete block is relatively more, some coagulations is easily entered in the walking track of gantry crane Soil block chip, when concrete block volume is larger, staff can generally be cleared, but when concrete block volume compared with Hour, the idler wheel of walking mechanism can be crushed directly, not interfere with the normal by therefore being difficult to cause work people of idler wheel Member's note that and according to practical work experience, processing factory's management is generally more chaotic, even if work people is seen in walking track There is small concrete chip to be also disinclined to clear up sometimes, idler wheel bears crane and all gravity of box beam, what idler wheel generated Immense pressure can crush concrete chip and compacting inflexibly is on walking track, after accumulating after a while, rail of walking Road upper surface can become uneven, and idler wheel can shake when walking entire crane, influence the service life of suspender, due to These concrete chips are crushed and compacting inflexibly is on walking track, and cleaning is got up cumbersome.

Utility model content

For defect in the prior art, the purpose of this utility model is to provide a kind of gantry crane vehicle with walking machine Structure in the process of walking clears up the concrete chip in walking track.

To achieve the above object, the technical solution adopted in the utility model is：A kind of trestle crane running gear, including Crossbeam, crossbeam lower end are equipped with idler wheel and driving device corresponding with idler wheel, and the crossbeam is equipped with cleaning agency, cleaning agency bag An air compressor and two air jet systems for being respectively arranged at crossbeam rear and front end are included, air jet system includes being fixed on crossbeam On driving motor and gearbox, gearbox include housing, worm screw, the first transmission shaft, second driving shaft and the 3rd transmission shaft, snail Bar is horizontally disposed with, and worm screw is driven by driving motor, and the first transmission shaft, second driving shaft and the 3rd transmission shaft are vertically arranged, and first Transmission shaft, second driving shaft and the 3rd transmission shaft are connected with housing into rotation, and the first transmission shaft and second driving shaft are on snail Bar is symmetrical set, the first transmission shaft and second driving shaft top be equipped with respectively with the first worm gear of worm engaging and the second snail Wheel, the first transmission shaft and second driving shaft lower end are respectively equipped with the first sector gear and the second sector gear, the first sector gear Identical with the second sector gear structure, the 3rd transmission shaft lower end is equipped with transmission gear, the first sector gear and the second sector gear On the center of circle central symmetry of transmission gear, the gear teeth angle of the first sector gear and the second sector gear is more than 90 ° and is less than 180 °, the first sector gear and the second sector teeth outside diameter circle are less than the tip diameter of transmission gear, when the first fan When shape gear is engaged with transmission gear, the second sector gear departs from transmission gear, when the second sector gear is nibbled with transmission gear During conjunction, the first sector gear departs from transmission gear；3rd transmission shaft lower end is equipped with gas nozzle, and gas nozzle is with the 3rd transmission Axis rotates synchronously, and gas nozzle inner end is connected by the gas outlet of hose and air compressor, and gas nozzle is located at outside housing Portion, gas nozzle is to cross rail outer jet.

First transmission shaft, second driving shaft and the 3rd transmission shaft are connected respectively by bearing with housing into rotation.

First transmission shaft and second driving shaft are rotatablely connected by two bearings and housing upper and lower ends.

The gas nozzle outboard end tilts down.

The angle of the gas nozzle outboard end and horizontal plane is 30 °.

When the gas nozzle turns to centre position, the axis of gas nozzle and the center line of track along the longitudinal direction of walking In same vertical plane.

The gear teeth angle of first sector gear and the second sector gear is 178 °.

The air compressor is arranged on the centre position of crossbeam upper end.

First worm gear and the second worm gear are located in housing.

The utility model is simple in structure, can be transformed on existing trestle crane running gear, does not influence existing gate-type and rises The normal use of heavy-duty machine walking mechanism, it is easy to spread, the concrete chip in walking track is cleared up by cleaning agency, Enable trestle crane running gear even running.

Description of the drawings

Fig. 1 is the utility model structure diagram；

Fig. 2 is the utility model air jet system structure diagram；

Fig. 3 is the utility model gearbox designs schematic diagram；

Fig. 4 is the first sector gear of the utility model and the second sector gear structure diagram.

Specific embodiment

As shown in Figures 1 to 4, a kind of trestle crane running gear, including crossbeam 1,1 lower end of crossbeam is equipped with 2 He of idler wheel With 2 corresponding driving device of idler wheel, the crossbeam 1 is equipped with cleaning agency, and cleaning agency includes an air compressor 3 and two A air jet system 4 for being respectively arranged at 1 rear and front end of crossbeam, air jet system 4 include 5 He of driving motor being fixed on crossbeam 1 Gearbox 6, gearbox 6 include housing 7, worm screw 8, the first transmission shaft 9,10 and the 3rd transmission shaft 11 of second driving shaft, 8 water of worm screw Flat to set, worm screw 8 is driven by driving motor 5, and the first transmission shaft 9,10 and the 3rd transmission shaft 11 of second driving shaft are vertically arranged, the One transmission shaft 9,10 and the 3rd transmission shaft 11 of second driving shaft are rotatablely connected with housing 7, and the first transmission shaft 9 and the second transmission Axis 10 is symmetrical set on worm screw 8, and the first transmission shaft 9 and 10 top of second driving shaft are equipped with what is engaged respectively with worm screw 8 First worm gear 12 and the second worm gear 13, the first transmission shaft 9 and 10 lower end of second driving shaft are respectively equipped with 14 He of the first sector gear Second sector gear 15, the first sector gear 14 is identical with 15 structure of the second sector gear, and 11 lower end of the 3rd transmission shaft, which is equipped with, to be passed Moving gear 16, the center of circle central symmetry of the first sector gear 14 and the second sector gear 15 on transmission gear 16, first is fan-shaped The gear teeth angle of 14 and second sector gear 15 of gear is more than 90 ° and less than 180 °, the first sector gear 14 and the second sector The tip diameter of wheel 15 is less than the tip diameter of transmission gear 16, the angle that transmission gear 16 rotates is made to be less than first fan-shaped The gear teeth angle of 14 and second sector gear 15 of gear, when the first sector gear 14 is engaged with transmission gear 16, second is fan-shaped Gear 15 departs from transmission gear 16, and when the second sector gear 15 is engaged with transmission gear 16, the first sector gear 14 is with passing Moving gear 16 departs from；3rd transmission shaft, 11 lower end is equipped with gas nozzle 17, and gas nozzle 17 is rotated synchronously with the 3rd transmission shaft 11, 17 inner end of gas nozzle is connected by hose with the gas outlet of air compressor 3, and gas nozzle 17 is located at outside housing 7, gas Body nozzle 17 is to 1 outside jet of crossbeam.

First transmission shaft 9,10 and the 3rd transmission shaft 11 of second driving shaft are rotatablely connected respectively by bearing and housing 7, are subtracted Frictional force during small rotation；First transmission shaft 9 and second driving shaft 10 are rotated by two bearings and 7 upper and lower ends of housing to be connected It connects, keeps the stability of the first transmission shaft 9 and second driving shaft 10 when rotating.17 outboard end of gas nozzle tilts down, The angle of 17 outboard end of gas nozzle and horizontal plane is 30 °, and the gas that gas nozzle 17 sprays is made to be realized more preferable towards ground Cleaning effect；When gas nozzle 17 turns to centre position, the axis of gas nozzle 17 and walking track are along the longitudinal direction Center line makes gas nozzle 17 using the center line for track of walking as centre position left-right rotation in same vertical plane, and first is fan-shaped The gear teeth angle of 14 and second sector gear 15 of gear is 178 °, the gear teeth of the first sector gear 14 and the second sector gear 15 Angle is close to 180 °, close to slitless connection when making 17 or so commutation of gas nozzle, because being found by actual use, selects first When the gear teeth angle of 14 and second sector gear 15 of sector gear is 180 °, although can theoretically realize that gas nozzle 17 exists It is uninterruptedly moved during the commutation of left and right, but certain error is had during practical set, be susceptible to the situation for beating tooth, so final choosing The gear teeth angle for selecting the first sector gear 14 and the second sector gear 15 is 178 °.

Air compressor 3 is arranged on the centre position of 1 upper end of crossbeam, is not take up extra space, does not influence crane Normal use；First worm gear 12 and the second worm gear 13 are located in housing 7, are conducive to protect the first worm gear 12 and the second worm gear 13, Improve the service life of the present apparatus.

When idler wheel 2 drives crossbeam 1 to move, start air compressor 3 and driving motor 5, air compressor 3 sprays for gas Mouth 17 provides gases at high pressure, and driving motor 5 drives worm screw 8 to rotate, and passes through matching somebody with somebody for the first worm gear 12 and the second worm gear 13 and worm screw 8 It closing, rotates backward the first transmission shaft 9 and second driving shaft 10, the first sector gear 14 is rotated counterclockwise with the first transmission shaft 9, When the first sector gear 14 is engaged with transmission gear 16, the first sector gear 14 is rotated clockwise with nutating gear 16, the Two sector gears 15 are rotated clockwise with second driving shaft 10, when the second sector gear 15 is engaged with transmission gear 16, second Sector gear 15 is rotated counterclockwise with nutating gear 16, passes through the first sector gear 14 and the second sector gear 15 and driving cog The alternating engagement of wheel 16 makes the 3rd transmission shaft 11 drive 17 left-right rotation of gas nozzle, and the gases at high pressure that gas nozzle 17 sprays will The concrete chip blowout walking track walked in track, even if part concrete chip can not blow track of walking and can also make it remote From idler wheel 2, the normally travel of idler wheel 2 is not interfered with.

Claims (9)

1. a kind of trestle crane running gear, including crossbeam, crossbeam lower end is equipped with idler wheel and driving device corresponding with idler wheel, It is characterized in that：The crossbeam is equipped with cleaning agency, and cleaning agency includes an air compressor and two are respectively arranged at The air jet system of crossbeam rear and front end, air jet system include the driving motor and gearbox that are fixed on crossbeam, and gearbox includes Housing, worm screw, the first transmission shaft, second driving shaft and the 3rd transmission shaft, worm screw are horizontally disposed with, and worm screw is driven by driving motor, First transmission shaft, second driving shaft and the 3rd transmission shaft are vertically arranged, and the first transmission shaft, second driving shaft and the 3rd transmission shaft are equal It is connected with housing into rotation, and the first transmission shaft and second driving shaft are symmetrical set on worm screw, the first transmission shaft and second Transmission shaft top is equipped with the first worm gear and the second worm gear with worm engaging respectively, the first transmission shaft and second driving shaft lower end point Not She You the first sector gear and the second sector gear, the first sector gear and the second sector gear structure are identical, the 3rd transmission Axis lower end be equipped with the center of circle central symmetry of transmission gear, the first sector gear and the second sector gear on transmission gear, first The gear teeth angle of sector gear and the second sector gear is more than 90 ° and less than 180 °, the first sector gear and the second sector gear Tip diameter be less than transmission gear tip diameter, when the first sector gear is engaged with transmission gear, second sector Gear departs from transmission gear, and when the second sector gear is engaged with transmission gear, the first sector gear departs from transmission gear； 3rd transmission shaft lower end is equipped with gas nozzle, and gas nozzle is rotated synchronously with the 3rd transmission shaft, and gas nozzle inner end passes through soft Pipe is connected with the gas outlet of air compressor, and gas nozzle is located at hull outside, and gas nozzle is to cross rail outer jet.

2. a kind of trestle crane running gear according to claim 1, it is characterised in that：First transmission shaft, Two transmission shafts and the 3rd transmission shaft are connected respectively by bearing with housing into rotation.

3. a kind of trestle crane running gear according to claim 1, it is characterised in that：First transmission shaft and Two transmission shafts are rotatablely connected by two bearings and housing upper and lower ends.

4. a kind of trestle crane running gear according to claim 1, it is characterised in that：The gas nozzle outboard end Portion tilts down.

5. a kind of trestle crane running gear according to claim 4, it is characterised in that：The gas nozzle outboard end The angle of portion and horizontal plane is 30 °.

6. a kind of trestle crane running gear according to claim 1, it is characterised in that：The gas nozzle turns to During centre position, the axis of gas nozzle is with walking the center line of track along the longitudinal direction in same vertical plane.

7. a kind of trestle crane running gear according to claim 1, it is characterised in that：First sector gear and The gear teeth angle of second sector gear is 178 °.

8. a kind of trestle crane running gear according to claim 1, it is characterised in that：The air compressor is set In the centre position of crossbeam upper end.

9. a kind of trestle crane running gear according to claim 1, it is characterised in that：First worm gear and second Worm gear is located in housing.