Multi-composite lifting frame
Technical Field
The utility model relates to a jacking equipment technical field, specifically speaking relates to a many compound erectors.
Background
At present, various mine drilling equipment, drilling equipment and forklifts are all provided with telescopic lifting frames. The flexible crane among the prior art is two compound cranes, promptly: the lifting mechanism is driven by the lifting driving mechanism to stretch and lift, and then the lifting frame drives the operation mechanism to lift to perform corresponding operation. The double-composite lifting frame has the advantages of large volume, large longitudinal height in a non-working state and poor stability, and when the double-composite lifting frame is applied to drilling equipment, the transverse folding state of the double-composite lifting frame has large length and poor trafficability in a narrow road section or area.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a many compound erectors to solve foretell technical problem.
In order to solve the above problems, the utility model adopts the following technical scheme:
the utility model provides a many compound erectors, includes fixed bolster, the elevating system of assembly on the fixed bolster and receives the elevating system drive and the power headstock that goes up and down, its characterized in that: the lifting mechanism comprises a driving oil cylinder, a first driving mechanism and a second driving mechanism which are used as lifting power; the first driving mechanism comprises a first driving frame, a first driving chain and a second driving chain, wherein the first driving frame is driven by the driving oil cylinder to lift along the fixed support; the second driving mechanism comprises a second driving frame, a third driving chain and a fourth driving chain, wherein the second driving frame, the third driving chain and the fourth driving chain are driven by the first driving mechanism to lift along the first driving frame; the cylinder body of the driving oil cylinder is fixedly assembled on the fixed support, and the top end of a piston rod of the driving oil cylinder is connected with the top of the first driving frame; the upper end of the first driving chain is connected with the upper part of the fixed bracket after bypassing a first chain wheel assembled at the top of the first driving frame, and the lower end of the first driving chain is fixedly connected with the lower part of the front side of the second driving frame; the upper end of the second driving chain is connected with the upper part of the fixed support, and the lower end of the second driving chain is fixedly connected with the lower part of the front side of the second driving frame after bypassing a second chain wheel assembled at the bottom of the second driving frame; the upper end of the third driving chain bypasses a third chain wheel assembled at the top of the second driving frame and then is connected with the upper part of the first driving frame, and the lower end of the third driving chain is fixedly connected with the upper part of the power head seat; the upper end of the fourth driving chain is connected with the upper part of the first driving frame, and the lower end of the fourth driving chain is fixedly connected with the lower part of the power head seat after bypassing the fourth chain wheel.
Furthermore, the left side and the right side of the fixed support are respectively fixed with a vertical pipe, and the two vertical pipes are respectively internally provided with a driving oil cylinder; a first top plate is fixed at the upper part of the rear side of the fixed bracket; the first driving frame is provided with two symmetrical vertical frames with I-shaped cross sections, the outer slot of each vertical frame is clamped on the vertical pipe, and the inner slot of each vertical frame is clamped on the second driving frame; a second top plate is fixed at the top of each of the two vertical frames, and a transverse plate is fixed at the front side of each of the two vertical frames; the top ends of piston rods of the two driving oil cylinders are respectively connected to a second top plate, and two ends of the second top plate are respectively provided with two first chain wheels; the two first driving chains are arranged, the upper ends of the two first driving chains are connected with the first top plate after passing through the first chain wheels respectively, and the lower ends of the two first driving chains are fixed at the end parts of the transverse plates; the second chain wheel is assembled in the middle of the bottom plate of the second driving frame, the upper end of the second driving chain is connected with the first top plate, and the lower end of the second driving chain is fixedly connected with the middle of the transverse plate after passing around the second chain wheel; a third top plate is fixed at the top of the second driving frame, a wheel seat is fixed at the top of the third top plate, and two third chain wheels are assembled in the wheel seat; the two third driving chains are arranged, and the upper ends of the two third driving chains are respectively connected with the second top plate after bypassing the third chain wheel; the upper end of the fourth driving chain is connected with the middle part of the second top plate, and the lower end of the fourth driving chain is fixedly connected with the lower part of the power head seat after passing through a fourth chain wheel assembled at the bottom of the power head seat.
Furthermore, the upper end of the first driving chain, the upper end of the second driving chain, the upper end of the third driving chain and the upper end of the fourth driving chain are fixedly connected with adjusting screws; adjusting screw rods fixed at the upper ends of the first driving chain and the second driving chain are assembled on the first top plate in a threaded mode; and adjusting screw threads fixed at the upper ends of the third driving chain and the fourth driving chain are assembled on the second top plate.
Furthermore, the first driving chain, the second driving chain, the third driving chain and the fourth driving chain are respectively replaced by driving belts; and the first chain wheel, the second chain wheel, the third chain wheel and the fourth chain wheel are respectively replaced by belt pulleys.
Has the advantages that: compared with the prior art, many compound crane improve two sections strokes of traditional two compound cranes into the three-section stroke, under the same condition of lift height, the one-section stroke shortens to original 2/3, the whole height of crane reduces to original 2/3, the volume is littleer, stability is better, when drilling equipment is last, horizontal fold condition's length is little, also has good trafficability characteristic in narrower highway section or region.
Drawings
Fig. 1 is a schematic front view of an embodiment of the present invention;
fig. 2 is a schematic rear view of an embodiment of the present invention;
fig. 3 is a schematic right-view structural diagram of an embodiment of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 1;
fig. 5 is a schematic perspective view of an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Examples
Referring to fig. 1 to 5, the multi-compound crane according to the present embodiment includes a fixed frame 1, a lifting mechanism assembled on the fixed frame 1, and a power head base 4 driven by the lifting mechanism to lift. The lifting mechanism comprises a driving oil cylinder 5 as lifting power, a first driving mechanism and a second driving mechanism. The cylinder body of the driving oil cylinder 5 is fixedly assembled on the fixed support 1, specifically, the left side and the right side of the fixed support 1 are respectively fixed with a vertical pipe 11, and the driving oil cylinders 5 are respectively assembled in the two vertical pipes 11. A first top plate 12 is fixed to the upper portion of the rear side of the fixing bracket 1.
The first driving mechanism comprises a first driving frame 2, a first driving chain 61 and a second driving chain 62 which are driven by a driving oil cylinder 5 to ascend and descend along the fixed support 1. The second driving mechanism comprises a second driving frame 3, a third driving chain 63 and a fourth driving chain 64 which are driven by the first driving mechanism to ascend and descend along the first driving frame 2.
As shown in fig. 4, the first driving frame 2 is provided with two symmetrical vertical frames with i-shaped cross sections, the outer slot of the vertical frame is clamped on the vertical pipe 11, and the inner slot is clamped on the second driving frame 3; the top parts of the two vertical frames are fixed with a second top plate 22, and the front lower part of the second driving frame 3 is fixed with a transverse plate 21. Two first sprockets 61A are fitted to both ends of the second top plate 22, respectively. The number of the first driving chains 61 is two, and the upper ends of the two first driving chains are connected to the first top plate 12 after passing around the respective first chain wheels 61A, specifically, the upper end of the first driving chain 61 is fixedly connected with an adjusting screw, and the adjusting screw is assembled on the first top plate 12 from top to bottom in a threaded manner. The lower end of the first driving chain 61 is fixed to the end of the transverse plate 21. The top ends of the piston rods of the two driving oil cylinders 5 are respectively connected to the second top plate 22.
The upper end of the second driving chain 62 is connected to the first top plate 12, and specifically, an adjusting screw is fixed to the upper end of the second driving chain 62 and is assembled in the middle of the first top plate 12 from bottom to top in a threaded manner. The lower end of the second driving chain 62 goes around a second chain wheel 62A assembled in the middle of the bottom plate 31 of the second driving frame 3 and then is fixedly connected with the middle of the transverse plate 21.
A third top plate 32 is fixed on the top of the second driving frame 3, a wheel seat 33 is fixed on the top of the third top plate 32, and two third chain wheels 63A are assembled in the wheel seat 33. The number of the third driving chains 63 is two, and the upper ends of the third driving chains respectively bypass the third chain wheel 63A and then are connected to the second top plate 22, specifically, the upper end of the third driving chain 63 is fixedly connected to an adjusting screw, and the adjusting screw is assembled on the second top plate 22 from top to bottom in a threaded manner. The lower end of the third driving chain 63 is fixedly connected with the upper part of the power head base 4.
The upper end of the fourth driving chain 64 is connected to the middle of the second top plate 22, and specifically, the upper end of the fourth driving chain 64 is fixedly connected to an adjusting screw, and the adjusting screw is assembled to the middle of the second top plate from bottom to top in a threaded manner. The lower end of the fourth driving chain 64 goes around a fourth chain wheel 64A assembled at the bottom of the power head base 4 and then is fixedly connected with the lower part of the power head base 4.
Of course, as other embodiments of the present invention, the first driving chain 61, the second driving chain 62, the third driving chain 63, and the fourth driving chain 64 can be replaced by driving belts, respectively; accordingly, the first sprocket 61A, the second sprocket 62A, the third sprocket 63A, and the fourth sprocket 64A can be replaced with pulleys, respectively.
Many compound crane's working process brief follows:
1. lifting: the piston rods of the two driving oil cylinders 5 are controlled to extend upwards, so that the first driving frame 2 is driven to ascend, and the first driving frame 2 upwards lifts the second driving frame 3 through the first driving chain 61; meanwhile, the second driving frame 3 lifts the power head base 4 upwards through the third driving chain 63.
2. And (3) descending: the piston rods of the two driving oil cylinders 5 are controlled to retract downwards, so that the first driving frame 2 is driven to descend, and the first driving frame 2 drives the second driving frame 3 to descend through the second driving chain 62; meanwhile, the second driving frame 3 drives the power head base 4 to descend through the fourth driving chain 64.
The above is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent structures made by the contents of the specification and the drawings are directly or indirectly applied to other related technical fields, all the same principle is within the patent protection scope of the present invention.