The fork-shaped bay-lift
Technical field
It is one to be used for the fork-shaped bay-lift of compressed-air controlled line delivery that the utility model relates to, and belongs to the elevator machinery technical field.
Background technology
With the immediate prior art of the present invention be the SJG fixed type self-powered platform that sino-america joint-venture rope Ellsworth bay-lift Co., Ltd is produced, this bay-lift uses Hydraulic Pump and hydraulic actuating cylinder ejection fork-shaped bench board to realize elevating function.
In the compressed-air controlled line delivery, for example the roller line delivery generally is that the employing high pressure gas are propulsion source, uses this bay-lift, and cost is higher.Because this bay-lift needs configuration oil circuit and Hydraulic Pump separately, price is higher, and the time permanent easy leakage of oil.If use this structure, change the hydraulic actuating cylinder on this bay-lift into cylinder, because there is the problem of the arm of force, it is motionless that cylinder may push away, and several cylinders, increases manufacturing cost, work efficiency is low.
Summary of the invention
The utility model provides a kind of bay-lift that is used for the compressed-air controlled line delivery, and its purpose is intended to overcome the above-mentioned defective of existing in prior technology, and is comparatively laborsaving.
Technical solution of the present utility model: it is characterized in that comprising cylinder, fork-shaped bay-lift, left and right sides limited roller, fulcrum, axle drive shaft, wherein axle drive shaft is positioned at the end of fork-shaped bay-lift away from fulcrum, the push rod top of cylinder is connected with axle drive shaft, and the bottom left right limit roller in the limited roller of the left and right sides is positioned on the axle drive shaft.
Advantage of the present utility model: use the gas circuit in the line body, do not need to dispose oil circuit and Hydraulic Pump separately, for oil cylinder, use cylinder more laborsaving.Be furnished with shock absorption device, using shock absorption device is to drop to impulsive force in the low side process in order to reduce the fork-shaped bay-lift.
Description of drawings
The present invention is further detailed explanation below in conjunction with drawings and embodiments.
Fig. 1 is the front view of bay-lift.
Fig. 2 has shock absorption device to reach the birds-eye view of the bay-lift of limited roller up and down.
Among the figure, the 1st, cylinder, the 2nd, fulcrum, the 3rd, bottom left right limit roller, the 4th, last left and right sides limited roller, the 5th, shock absorption device, the 6th, limited roller up and down, the 7th, reconcile nut, the 8th, axle drive shaft, the 9th, last fulcrum, the 10th, fork-shaped bay-lift.
The specific embodiment
The contrast accompanying drawing, its structure is to comprise cylinder 1, fork-shaped bay-lift 10, left and right sides limited roller, fulcrum 2, axle drive shaft 8, wherein axle drive shaft 8 is positioned at the end of fork-shaped bay-lift 10 away from fulcrum 2, the push rod top of cylinder 1 is connected with axle drive shaft, bottom left right limit roller 3 in the left and right sides limited roller 4 is positioned on the axle drive shaft 8
Described left and right sides limited roller is divided into left and right sides limited roller 4, bottom left right limit roller 3, and bottom left right limit roller 3 is positioned on the axle drive shaft.
Shock absorption device 5 is arranged around the described fork-shaped bay-lift 10, and shock absorption device 5 is made up of last rectangular tube, following rectangular tube, spring, wherein goes up rectangular tube can rise up into down in the rectangular tube, and spring is fixed on down in the rectangular tube.Using shock absorption device is to drop to impulsive force in the low side process in order to reduce the fork-shaped bay-lift.
Be provided with guide rail and limited roller 6 up and down in the following side of rectangular tube, limited roller 6 is connected on the fulcrum 9 up and down.Whether select to use limited roller up and down on fork-shaped bay-lift 10, can select as required, it's not true, also can normally use unaffected.Use limited roller 6 up and down, whole fork-shaped bay-lift 10 is in and repeats constraint, and it is more stable to work.