CN214828826U

CN214828826U - Special height adjusting and lifting mechanism for ladder frame

Info

Publication number: CN214828826U
Application number: CN202121691712.4U
Authority: CN
Inventors: 齐冬梅; 宋政璞; 韩学剑; 邵竑泽
Original assignee: Dalian Changfeng Industrial Corp
Current assignee: Dalian Changfeng Industrial Corp
Priority date: 2021-07-24
Filing date: 2021-07-24
Publication date: 2021-11-23
Anticipated expiration: 2031-07-24

Abstract

The utility model provides a special altitude mixture control elevating system of ladder frame belongs to mechanical equipment technical field. The lifting mechanism comprises a fixed upright post, a mounting plate, a jacking mechanism and a supporting mechanism. Fix this elevating system on ladder frame lower floor heel post, adopt the gear drive principle, through waveing the rocking handle, the driving gear drives bevel gear and rotates, with the motion transmission to supporting mechanism, supporting mechanism goes up and down, guarantees that ladder frame upper strata can go up and down, and the lift height is not less than 500mm, if special needs, can carry out the range adjustment. The lifting mechanism has high safety, high strength and good rigidity, ensures the same working table surface, and can be suitable for different operation height requirements; and meanwhile, the load capacity is large, and a 1-ton platform can be supported to lift at a constant speed.

Description

Special height adjusting and lifting mechanism for ladder frame

Technical Field

The utility model belongs to the technical field of mechanical equipment, a special altitude mixture control elevating system of ladder frame is related to.

Background

The height of the working table surface of the airplane needs to be adjusted during the overhaul of the airplane, and the lifting height is not less than 500 mm. The working platform is divided into a left part and a right part which are respectively positioned on two sides of the machine body, the machine body is cambered, the working platform is combined with the machine body, and the table top is also cambered. Before the working table top works, the working table top needs to be fixed, and the height of the working table top needs to be adjusted, so that the working requirement of the working table top is met. Traditional type ladder frame height-fixing, can not adjust, so need to need high adjustment mechanism urgently, use same ladder frame during maintenance operation, adjust table surface height, satisfy not co-altitude working requirement.

The existing common ladder frame products generally do not have a lifting mechanism. Still some ladder framves have liftable function, but the mechanism is simple, and the operation is complicated to need many people to cooperate the operation during going up and down, have certain potential safety hazard during the operation. The utility model designs a special height adjusting and lifting mechanism for a general ladder frame aiming at the height adjustment of the working table top, the volume is light, the operation is convenient, and the lifting of the working table top can be realized by shaking the handle; and the lifting mechanism has high strength and good rigidity, and can ensure the stable lifting of the ladder frame.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned problem among the prior art, the utility model provides a special altitude mixture control elevating system of ladder frame fixes this elevating system on ladder frame lower floor's heel post, adopts the gear drive principle, and through waveing the rocking handle, the driving gear drives bevel gear and rotates, transmits the supporting mechanism with the motion, and the supporting mechanism goes up and down, guarantees that ladder frame upper strata can go up and down, and the elevating height is not less than 500 mm. The lifting mechanism has high strength and good rigidity, and ensures that the upper layer of the ladder frame can be lifted stably; the loading capacity is large, and a 1-ton platform can be supported to lift at a constant speed.

The technical scheme of the utility model:

a special height adjusting and lifting mechanism for a ladder frame comprises a fixed upright post 2, a mounting plate 3, a jacking mechanism and a supporting mechanism 4.

The fixed upright post 2 is a through hollow columnar structure, the fixed upright post 2 is symmetrically fixed with mounting plates 3, and the fixed upright post is fixed on a bearing column at the lower layer of the ladder frame through the mounting plates 3.

The jacking mechanism comprises a rocking handle 1, an ejector rod 5, a screw rod 6, a fixed seat 7, a bevel gear 8 and a key 9. Wherein, the fixed seat 7 is connected with the lower end of the fixed upright post 2; rocking handle 1 is connected with the initiative axle, and the driving gear is connected with bevel gear 8 meshing, and bevel gear 8 passes through key 9 and is connected with lead screw 6, and lead screw 6 passes through the bearing and installs on fixing base 7, and lead screw 6 is connected with ejector pin 5 simultaneously, and inside lead screw 6 and ejector pin 5 all located fixed post 2, the top and the supporting mechanism 4 of ejector pin 5 are connected. And the supporting mechanism 4 is provided with a fixing hole for installing the upper supporting end of the ladder frame.

The two lifting mechanisms are symmetrically arranged and have the same height, and driving gears of the two lifting mechanisms are arranged on the same driving shaft.

The height of the fixed upright post 2 and the length of the screw rod 6 determine the lifting height of the upper layer of the ladder frame, which is not less than 500 mm.

Before the mounting plate is used, the mounting plate 3 is fixed on a bearing column at the lower layer of the ladder frame, and the support end at the upper layer of the ladder frame is inserted into a fixing hole of the support mechanism 4. Every ladder frame needs to install two this elevating system, uses in pairs, and the symmetry is installed, and the height is the same.

When the lifting device is used, the rocking handle 1 is rocked to drive the bevel gear 8 to rotate, the motion is transmitted to the screw rod 6 through the key 9, the screw rod 6 is installed in the fixing seat 7, the motion is transmitted to the ejector rod 5, and the ejector rod 5 goes up and down, so that the supporting mechanism 4 is driven to go up and down, and the upper layer of the ladder frame goes up and down.

The utility model has the advantages that: the utility model provides a special altitude mixture control elevating system of ladder frame, this elevating system security is high, easy operation, wave the handle and can guarantee that ladder frame upper strata can go up and down, go up and down highly not less than 500mm, if have special needs, can carry out the range adjustment. The lifting mechanism has high strength and good rigidity, ensures the same working table surface, and can meet the requirements of different working heights; and meanwhile, the load capacity is large, and a 1-ton platform can be supported to lift at a constant speed.

Drawings

Fig. 1 is a schematic structural view of the lifting mechanism of the present invention.

Fig. 2 is a schematic structural diagram of the jacking mechanism.

In the figure: 1, rocking a handle; 2 fixing the upright post; 3, mounting a plate; 4, a supporting mechanism; 5, a top rod; 6, a screw rod; 7, fixing seats; 8, a bevel gear; and (9) a bond.

Detailed Description

The following embodiments of the present invention will be further explained with reference to the accompanying drawings, but the present invention is not limited thereto.

As shown in fig. 1, a height adjusting and lifting mechanism special for a ladder rack comprises a fixed upright post 2, a mounting plate 3, a jacking mechanism and a supporting mechanism 4.

The fixed upright post 2 is a hollow columnar structure with two through ends, the fixed upright post 2 is symmetrically fixed with the mounting plates 3, and the fixed upright post is fixed on the bearing column at the lower layer of the ladder frame through the mounting plates 3.

As shown in fig. 2, the jacking mechanism comprises a rocking handle 1, a mandril 5, a screw rod 6, a fixed seat 7, a bevel gear 8 and a key 9. Wherein, the fixed seat 7 is connected with the lower end of the fixed upright post 2; rocking handle 1 is connected with the initiative axle, and the driving gear passes through the key and is connected with the driving shaft, and the driving gear is connected with bevel gear 8 meshing, and bevel gear 8 passes through key 9 and is connected with lead screw 6, and lead screw 6 passes through the bearing and installs on fixing base 7, and

lead screw

6 and 5 threaded connection of ejector pin simultaneously, and inside lead screw 6 and ejector pin 5 all located fixed post 2, the top and the supporting mechanism 4 of ejector pin 5 are connected. And the supporting mechanism 4 is provided with a fixing hole for installing the upper supporting end of the ladder frame.

Claims

1. A special height adjusting lifting mechanism for a ladder frame is characterized by comprising a fixed upright post (2), a mounting plate (3), a jacking mechanism and a supporting mechanism (4);

the fixed upright post (2) is a through hollow columnar structure, mounting plates (3) are symmetrically fixed on the fixed upright post (2), and the fixed upright post is fixed on a lower bearing post of the ladder frame through the mounting plates (3);

the jacking mechanism comprises a rocking handle (1), a mandril (5), a screw rod (6), a fixed seat (7), a bevel gear (8) and a key (9); wherein the fixed seat (7) is connected with the lower end of the fixed upright post (2); the rocking handle (1) is connected with a driving shaft, the driving gear is connected to the driving shaft, the driving gear is meshed with a bevel gear (8), the bevel gear (8) is connected with a screw rod (6) through a key (9), the screw rod (6) is installed on a fixed seat (7) through a bearing, the screw rod (6) is connected with a mandril (5), the screw rod (6) and the mandril (5) are both arranged inside a fixed upright post (2), and the top end of the mandril (5) is connected with a supporting mechanism (4);

2. The special height-adjusting lifting mechanism for the ladder frame as claimed in claim 1, wherein the supporting mechanism (4) is provided with a fixing hole for installing the upper supporting end of the ladder frame.

3. The special height-adjustable lifting mechanism for the ladder rack as claimed in claim 1 or 2, characterized in that the height of the fixed upright (2) and the length of the screw rod (6) are not less than 500 mm.