A kind of material lifting device
Technical field
The utility model relates to a kind of material lifting device.
Background technology
Material lifting device generally uses the lifting table of hydraulic pressure or Pneumatic elevation platform or worm and gear, and this lifting table complex structure, cost of manufacture are high, and the cost of operation and maintenance is also higher.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of framework simple, manufacture the low material lifting device of use cost.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of material lifting device, comprise base plate, on base plate, diagonal angle is provided with two guide rods, and on base plate, diagonal angle rotates and is provided with two lift adjustment bars, and lift adjustment masthead end passes top board and which is provided with by movable sprocket, on lift adjustment bar, be threaded connection lifting cover, lifting puts and is provided with lifter plate, is movably equipped with drive sprocket on top board, and drive sprocket and two are provided with chain between movable sprocket.
As the preferred scheme of one, on described top board, be provided with chain tensioning mechanism in chain one side.
As the preferred scheme of one, the opposite side at chain on described top board is also provided with stretching device.
As the preferred scheme of one, described stretching device comprises the tensioning plate being arranged on top board, and tensioning plate is provided with idler sprocket, on tensioning plate, is provided with two waist-shaped holes along tension direction, and tensioning plate is connected with top board by the bolt through waist-shaped hole.
As the preferred scheme of one, on described top board, rotate and be provided with axle, described drive sprocket is set in axle, and described axle top is provided with handwheel.
As the preferred scheme of one, on described guide rod, slide and be provided with guide pin bushing, described lifter plate is connected with guide pin bushing.
The beneficial effects of the utility model are: simple in structure, only needing manpower to drive can carry out descending operation by weight, easy to process, with low cost, applied widely.
Owing to being provided with stretching device, device assembles rear chain carries out tensioning to chain, makes transmission more smooth and easy.
Owing to sliding and being provided with guide pin bushing on guide rod, described lifter plate is connected with guide pin bushing, lifter plate is installed more firm, and lifting process resistance is less, guide pin bushing can effectively reduce the power that drives drive sprocket to use, and more can make lifter plate more stable not stuck in the time moving up and down; And owing to being provided with guide pin bushing, it goes without doing rotatablely moves for guide rod in the process of lifting, thereby realize the closed stablity of whole framework.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model.
Fig. 2 is plan structure schematic diagram of the present utility model (removing after handwheel).
In Fig. 1 to Fig. 2: 1. base plate, 2. guide rod, 3. guide pin bushing, 4. lift adjustment bar, 5. by movable sprocket, 6. lifting cover, 7. lifter plate, 8. axle, 9. drive sprocket, 10. handwheel, 11. chains, 12. tensioning plates, 13. idler sprockets, 14. top boards.
The specific embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present utility model in detail.
As shown in Figure 1-2, a kind of material lifting device, comprises base plate 1, and on base plate 1, diagonal angle is provided with two guide rods 2, on guide rod 2, slides and is provided with guide pin bushing 3.On base plate 1, diagonal angle rotates and is provided with two lift adjustment bars 4, and lift adjustment bar 4 tops pass top board 14 and which is provided with by movable sprocket 5.On lift adjustment bar 4, be threaded connection lifting cover 6, lifting cover 6 is provided with lifter plate 7, and lifter plate 7 is connected with guide pin bushing 3.On top board 14, rotate and be provided with axle 8, drive sprocket 9 is set in axle 8, and described axle 8 tops are provided with handwheel 10.Drive sprocket 9 and two are provided with chain 11 between movable sprocket 5.On top board 14, be all provided with the stretching device of tension chain 11 in chain 11 both sides.Stretching device comprises the tensioning plate 12 being arranged on top board 14, and tensioning plate 12 is provided with idler sprocket 13, on tensioning plate 12, is provided with two waist-shaped holes along tension direction, and tensioning plate 12 is connected with top board 14 by the bolt through waist-shaped hole.
When work, when handwheel 10 drives drive sprocket 9 to rotate by axle 8, drive sprocket 9 drives chain 11 to drive by movable sprocket 5 and rotates; Thereby lift adjustment bar 4 is rotated; Finally realize lift adjustment cover and drive lifter plate 7 dipping and heaving on lifting bar.
The above embodiments are principle and effect thereof of illustrative the invention only, and the embodiment of part utilization, but not for limiting the utility model; It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection domain of the present utility model.