CN102807161A

CN102807161A - Hoisting frame

Info

Publication number: CN102807161A
Application number: CN2012102825993A
Authority: CN
Inventors: 高尔军
Original assignee: Wuxi Institute of Commerce
Current assignee: Wuxi Institute of Commerce
Priority date: 2012-08-10
Filing date: 2012-08-10
Publication date: 2012-12-05

Abstract

The invention discloses a hoisting frame which comprises a trapezoidal frame. A worm and gear speed reducer and a plummer block are fixed to the top of the trapezoidal frame through bolts, hand wheels are mounted at two ends of a worm shaft of the worm and gear speed reducer, a steel wire rope winding drum is connected to one end of a worm gear shaft of the worm and gear speed reducer, a mandrel of the steel wire rope winding drum is mounted in a bearing hole of the plummer block, and a hook is arranged at the tail end of a steel wire rope which is arranged on the steel wire rope winding drum. Rollers are mounted at four bottom corners of the trapezoidal frame which is placed on a roller guide rail.

Description

A kind of mast-up

Technical field

The present invention relates to a kind of mast-up.

Background technology

Usually when maintenance passenger vehicle change-speed box, all want earlier change-speed box to be disassembled from car, no matter and be on the maintenance ditch, to carry out in unloading process, still enterprising provisional capital can be difficult to because of the place is narrow and small construct on the level land.And the passenger vehicle change-speed box all weighs more than hundred jin, and impersonal force can afford to lift, and the workman constructs greatly dangerous under car.

Summary of the invention

The objective of the invention is to address the above problem, a kind of mechanical lifting gear lifting change-speed box is provided, let the dismounting of passenger vehicle change-speed box become safety, laborsaving saving time.

For solving the problems of the technologies described above, the present invention adopts following technical scheme:

A kind of mast-up; Comprise trapezoidal frame, trapezoidal frame top has worm type of reduction gearing and rolling bearing units through bolt, and handwheel is equipped with at the worm shaft two ends of worm type of reduction gearing; One end of the worm-wheel shaft of worm type of reduction gearing connects cable drum; The footstalk of cable drum is loaded in the bearing hole of rolling bearing units, and steel rope is arranged on the cable drum, and the steel rope end has suspension hook.On four jiaos of trapezoidal frame bottom roller is housed, trapezoidal frame is placed on the rolling wheel guide rails.

During construction, mast-up is placed in the access opening top on floor in the passenger car, turning handle drives cable drum through worm reducer and rotates, and the steel rope on the cable drum tightens up or loosens, and change-speed box is sling or put down.

Beneficial effect of the present invention: worm reducer has auto-lock function, and change-speed box rests on the optional position in the time of can guaranteeing to lift.The speed ratio of worm reducer is bigger, rotates lightly, makes that the lifting operation is light, and a workman can operate; Roller is equipped with in trapezoidal frame bottom, and roller can move in the rolling wheel guide rails frame, the position when convenient adjustment lifts change-speed box.

Description of drawings

Fig. 1 is the axonometric drawing of mast-up of the present invention;

Fig. 2 is the front view of mast-up of the present invention;

Wherein: 1 is that rolling wheel guide rails, 2 is that roller, 3 is that trapezoidal frame, 4 is that handwheel, 5 is that worm type of reduction gearing, 6 is that cable drum, 7 is that rolling bearing units, 8 are that steel rope, 9 is a suspension hook.

The specific embodiment

A kind of passenger vehicle change-speed box mast-up as shown in Figure 1; Comprise trapezoidal frame 3, there are worm type of reduction gearing 5 and rolling bearing units 7 in trapezoidal frame 3 tops through bolt, and handwheel 4 is equipped with at the worm shaft two ends of worm type of reduction gearing 5; One end of the worm-wheel shaft of worm type of reduction gearing 5 connects cable drum 6; The footstalk of cable drum 6 is loaded in the bearing hole of rolling bearing units 7, and steel rope 8 is arranged on the cable drum 6, and steel rope 8 ends have suspension hook 9.On four jiaos of trapezoidal frame 3 bottoms roller 2 is housed, trapezoidal frame is placed on the rolling wheel guide rails 1.

During construction, mast-up is placed in above the access opening on floor in the passenger car turning handle 4; Drive cable drum 6 through worm reducer 5 and rotate, the steel rope 8 on the cable drum 6 tightens up, and change-speed box is sling; After the workman accomplishes the screw disassembling work of fixed transmission; Turning handle 4 is placed change-speed box on the ground, change-speed box is hauled out car body keeps in repair by transporting dolly.After maintenance is good, again through mast-up with the height that it is suitable that gearbox is sling, fix.Mast-up of the present invention makes the dismounting maintenance of whole gearbox time saving and energy saving, has alleviated workman's manipulation strength, has improved safety.

Claims

1. mast-up; It is characterized in that: comprise trapezoidal frame, said trapezoidal frame top has worm type of reduction gearing and rolling bearing units through bolt, and handwheel is equipped with at the worm shaft two ends of said worm type of reduction gearing; One end of the worm-wheel shaft of said worm type of reduction gearing connects cable drum; The footstalk of said cable drum is loaded in the bearing hole of rolling bearing units, on the said cable drum steel rope is arranged, and said steel rope end has suspension hook.

2. a kind of mast-up as claimed in claim 1 is characterized in that on four jiaos of said trapezoidal frame bottom roller being housed, and said trapezoidal frame is placed on the rolling wheel guide rails.