CN202744219U - Lifting frame - Google Patents

Abstract

The utility model discloses a lifting frame for a passenger car transmission. The lifting frame for the passenger car transmission comprises a trapezoidal stand. The top part of the trapezoidal stand is fixedly provided with a worm gear reducer and a rolling bearing unit through bolts; both ends of a worm shaft of the worm gear reducer are respectively provided with a hand wheel; one end of a worm-wheel shaft of the worm gear reducer is connected with a wire rope reel; a mandrel of the wire rope reel is arranged in a bearing hole of the rolling bearing unit; a wire rope is wound on the wire rope reel; and the tail end of the wire rope is provided with a lifting hook. Four corners of the bottom part of the trapezoidal stand are respectively provided with a roller, and the trapezoidal stand is arranged on a roller guide rail.

Description

A kind of mast-up

Technical field

The utility model relates to a kind of mast-up.

Background technology

Usually all to first change-speed box be disassembled from car during speed coach transmission in maintenance, no matter and be to carry out at the maintenance ditch in unloading process, or enterprising provisional capital can be difficult to construction because of narrow field on the level land.And speed coach transmission 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 purpose of this utility model is to address the above problem, and a kind of mechanical lifting gear lifting change-speed box is provided, and allows the dismounting of speed coach transmission become safety, laborsaving saving time.

For solving the problems of the technologies described above, the utility model adopts following technical scheme:

A kind of mast-up, comprise trapezoidal frame, trapezoidal frame top has been bolted worm type of reduction gearing and rolling bearing units, handwheel is equipped with at the worm shaft two ends of worm type of reduction gearing, one end connecting steel wire ropes reel of the worm-wheel shaft of worm type of reduction gearing, 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 by worm reducer and rotates, and the steel rope on the cable drum tightens up or loosens, and change-speed box is sling or is put down.

The beneficial effects of the utility model: 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 larger, rotates lightly, so that lifting operation is light, a workman can operate; Roller is equipped with in trapezoidal frame bottom, and roller can move in the rolling wheel guide rails frame, the convenient position of adjusting when lifting change-speed box.

Description of drawings

Fig. 1 is the axonometric drawing of the utility model mast-up;

Fig. 2 is the front view of the utility model mast-up;

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 suspension hook.

The specific embodiment

A kind of speed coach transmission mast-up as shown in Figure 1, comprise trapezoidal frame 3, trapezoidal frame 3 tops have been bolted worm type of reduction gearing 5 and rolling bearing units 7, handwheel 4 is equipped with at the worm shaft two ends of worm type of reduction gearing 5, one end connecting steel wire ropes reel 6 of the worm-wheel shaft of worm type of reduction gearing 5, 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, driving cable drum 6 by worm reducer 5 rotates, steel rope 8 on the cable drum 6 tightens up, and change-speed box is sling, after the workman finishes the screw disassembling work of fixed transmission, turning handle 4, change-speed box is placed on the ground, change-speed box is hauled out car body keep in repair by transporting dolly, after maintenance is good, again by mast-up with the height that it is suitable that gearbox is sling, fix.Mast-up of the present utility model makes the dismounting maintenance of whole gearbox time saving and energy saving, has alleviated workman's manipulation strength, has improved safety.

Claims (2)

1. mast-up, it is characterized in that: comprise trapezoidal frame, described trapezoidal frame top has been bolted worm type of reduction gearing and rolling bearing units, handwheel is equipped with at the worm shaft two ends of described worm type of reduction gearing, one end connecting steel wire ropes reel of the worm-wheel shaft of described worm type of reduction gearing, the footstalk of described cable drum is loaded in the bearing hole of rolling bearing units, on the described cable drum steel rope is arranged, and described 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 described trapezoidal frame bottom roller being housed, and described trapezoidal frame is placed on the rolling wheel guide rails.

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