CN101537998A - Lifting working platform with lifting device - Google Patents

Abstract

The lifting work platform with lifting device belongs to the high-altitude operation device. The lifting work platform of the prior art has the defect that it is inconvenient to lift articles. The feature of the present invention is that a lifting device is provided on the working platform. The lifting device includes a base, Slewing support, foldable lifting arm, electric hoist, hook and traction rope, track is set on the working platform, the base is set on the track, the slewing support is connected with the base and has a rotary shaft, one end of the foldable lifting arm is connected with the return The rotating shaft is connected, and the traction rope is arranged along the foldable boom. One end of the traction rope is wound on the electric hoist, and the other end is led to the other end of the foldable boom and the hook is connected to the traction rope. While transporting high-altitude workers to the designated height position, the lifting device can also be used to hoist items, which expands the use of the product, solves the problem of hoisting small workpieces when working at heights in special occasions, and effectively improves the convenience of operations sex and efficiency.

Description

Elevating work platform with lifting device

technical field

The invention belongs to a high-altitude operation device, in particular to a lifting work platform with a lifting device.

Background technique

The traditional elevating work platform (also called "aerial work platform") is generally used to carry people to work at heights, but in special occasions (such as: maintenance of power capacitors, etc.), it is necessary to take out items at heights and transport them to the ground. Or transport the items on the ground to the designated location at high altitude. These items are placed in a very narrow position at high altitude, and there may be multiple items placed closely together. The weight of a single item is usually about 100kg, which cannot be carried out by conventional lifting equipment. Hoisting, and because the carrying capacity that the high-altitude workers can bear when high-altitude is very limited, it is difficult and very unsafe to carry by manpower.

Contents of the invention

The technical problem to be solved and the technical task proposed by the present invention are to overcome the defect of inconvenient hoisting objects existing in the lifting work platform of the prior art, and provide a lifting work platform with a lifting device. For this reason, the present invention adopts following technical scheme:

An elevating work platform with a lifting device includes an underframe, an elevating mast arranged on the underframe, and a working platform on the top of the elevating mast. The heavy device includes a base, a slewing bearing, a foldable boom, an electric hoist, a hook and a traction rope. The working platform is provided with a track, and the base is set on the track. The slewing bearing is connected with the base and has a return Rotary shaft, one end of the foldable boom is connected with the rotary shaft, the traction rope is arranged along the foldable boom, one end of the traction rope is wound on the electric hoist, the other end is led to the other end of the foldable boom and Connect the hook to the tow rope.

This technical solution realizes the horizontal movement of the lifting device by setting a track on the working platform, and at the same time sets the slewing support, and connects the foldable boom to the slewing support's slewing shaft to realize the slewing motion of the slewing shaft. Through the horizontal movement and slewing The movement realizes the all-round movement of the foldable boom on the working platform so that it can reach the appropriate position for hoisting of objects; at the same time, the foldable boom is stretched by the operator during operation, and it can be folded in non-working state to avoid take up space.

As a further improvement and supplement to the above technical solution, the present invention also includes the following additional technical features:

In order to facilitate the workers to fold and unfold the foldable boom smoothly and easily, the foldable arm is composed of a vertical arm and a cross arm, and the vertical arm and the cross arm are connected by a rotating shaft, and the vertical arm and the cross arm A positioning hole for passing through the positioning pin shaft is provided at a position offset from the rotating shaft; the vertical arm is connected to the rotating shaft through the rotating shaft, and the position offset from the rotating shaft is set on the vertical arm and the rotating shaft There are positioning holes for passing the positioning pin shaft.

The electric hoist is fixed on the vertical arm, so that the electric hoist can be consistent with the foldable boom when the foldable boom is unfolded and folded.

The rotary shaft can be manually rotated. In order to realize the accurate and effective rotation of the foldable boom and to keep the foldable boom positioned in an appropriate position, a worm gear can also be connected to the rotary shaft, and a worm gear driven by a rotary motor can be arranged in conjunction with the worm gear. of the worm.

The base can be moved by manpower on the guide rail. In order to enable the lifting device to move horizontally on the working platform smoothly and lightly, a gear driven by a traveling motor may also be set on the base, and a rack meshing with the gear is set on the track.

The beneficial effects of the present invention are:

While transporting high-altitude workers to the designated height position, the lifting device can also be used to hoist items, which expands the use of the product, solves the problem of hoisting small workpieces when working at heights in special occasions, and effectively improves the convenience of operations sex and efficiency.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a schematic diagram of another perspective of the structure of the present invention.

Fig. 3 is a schematic view of the lower part of the lifting device of the present invention.

Fig. 4 is a schematic diagram of the lifting device of the present invention in a folded state of the foldable boom.

Fig. 5 is a schematic top view of the lower part of the lifting device of the present invention.

Fig. 6 is a schematic diagram of the lifting device of the present invention in the unfolded state of the foldable boom.

In the picture:

1 - chassis;

2 - lifting mast;

3- work platform,

31 - track;

4 - lifting gear,

41-base,

42-slewing ring,

421-cabinet,

422-rotary axis,

422a-positioning hole,

423-bearing,

43 - Foldable jib,

431 - vertical arm,

431a/431b-positioning hole,

432-Crossarm,

432a - positioning hole,

433/434-shaft,

435/436-locating pin,

44-electric hoist,

45-hook,

46 - traction rope,

47 - rotary motor,

48 - worm gear,

49-worm,

410-travel motor,

411-gear,

412-rack,

413 - walking wheels,

414 - Coupling.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 and 2, the elevating work platform of the present invention includes an underframe 1, an elevating mast 2 disposed on the underframe 1, and a working platform 3 positioned at the top of the elevating mast 2. This part of the structure is different from the existing The elevating work platform is similar, and will not be described in detail; compared with the prior art, the present invention is characterized in that a lifting device 4 is set on the working platform 3 (see Fig. 3, 4, 5, 6 for details), and the lifting device 4 Including base 41, slewing bearing 42, foldable boom 43, electric hoist 44, hook 45 and traction rope 46, specifically:

Track 31 is fixed on working platform 3, and track 31 is provided with the rack 312 that meshes with gear 411 mentioned below; The walking wheel 413 on the base 41 is placed on track 31 so that base 41 can walk on track 31 ;

Slewing bearing 42 is connected on base 41 upper side, and it has a rotary shaft 422, and this rotary shaft 422 is rotated by bearing 423 and is vertically arranged in the box body 421 of slewing bearing, and worm gear 48 is fixed on the lower end of rotary shaft 422 (see for details Figure 3, 4, 6);

The folding arm 43 is composed of a vertical arm 431 and a cross arm 432. The vertical arm 431 and the cross arm 432 are connected by a rotating shaft 434, and the position of the vertical arm 431 and the cross arm 432 is offset from the rotating shaft 434. The positioning holes 431a, 432a of the positioning pin shaft 435; the vertical arm 431 is also connected with the rotary shaft 422 through the rotary shaft 436, and the position offset from the rotary shaft 433 on the vertical arm 431 and the rotary shaft 422 is also provided with a hole for piercing The positioning holes 431b, 422a of the positioning pin shaft 436 (see Fig. 3, 4 for details);

The traction rope 46 is arranged along the foldable boom 43, and one end of the traction rope 46 is wound on the electric hoist 44, and the other end thereof is led to the other end of the foldable boom 43 and the hook 45 is connected on the traction rope 46 ; The electric hoist 44 is fixed on the vertical arm 431;

Relatively described base 41 and slewing support 42 are provided with slewing motor 47 and travel motor 410, and slewing motor 47 drives a worm screw 49 meshed with worm gear 48 so that drive rotary shaft 422 is with foldable jib 43 revolution, and travel motor 410 drives There are two gears 411 meshed with the rack 412 so as to drive the entire lifting device to move horizontally on the track 31 .

The elevating work platform of the above structure, its lifting action is similar to the prior art, so it will not be repeated here. The working mode of its lifting device is: before the working platform rises to a high altitude, it is in the folded state shown in Figure 4. When the working platform After being raised to a high altitude, the operator on the working platform will unfold the foldable boom: firstly erect the horizontal arm 432 shown in Figure 4 clockwise around the rotating shaft 434 by hand, and use the positioning pin shaft 435 to penetrate the vertical arm 431 and the corresponding positioning holes 431a, 432a on the cross arm 432; realize the positioning of the vertical arm 431 and the cross arm 432, and then erect the vertical arm 431 shown in Figure 4 counterclockwise around the rotating shaft 433 by hand, and use the positioning pin The shaft 436 penetrates the corresponding positioning holes 431b, 422a on the vertical arm 431 and the rotary shaft 422 to realize the positioning of the vertical arm and the rotary shaft, that is, to realize the unfolding of the foldable boom (it can be folded according to the opposite operation), and then The electric hoist 44 can be started to lift the article through the traction rope 46 and the hook 45; The travel motor 410 drives the entire lifting device to walk horizontally along the track through the meshing of the gear 411 and the rack 412. The two can be operated independently or in combination. This power transmission can ensure stable rotation and horizontal movement when deceleration is achieved. At the same time, it also has a self-locking function to avoid shaking of the lifting device during work; in order to ensure the stability of the lifting device and avoid dumping, the track is made into a groove shape, and the walking wheels are placed in the groove.

Claims (5)

1, take up the lifting working platform that refitting is put, comprise underframe (1), the workplatform (3) of being located at the lifting lower mast (2) on the underframe (1) and being positioned at lifting lower mast (2) top, it is characterized in that: described workplatform (3) is provided with hoisting device (4), this hoisting device (4) comprises base (41), pivoting support (42), collapsible crane arm (43), electric block (44), hook (45) and hauling rope (46), described workplatform (3) is provided with track (31), described base (41) is located on the track (31), pivoting support (42) is connected with base (41) and has an axis of revolution (422), one end of collapsible crane arm (43) is connected with described axis of revolution (422), hauling rope (46) is arranged along collapsible crane arm (43), one end of hauling rope (46) is on electric block (44), and its other end causes the other end of collapsible crane arm (43) and described hook (45) is connected on the hauling rope (46).

2, the lifting working platform of resetting and putting that takes up according to claim 1, it is characterized in that described collapsible crane arm (43) is made of perpendicular arm (431) and transverse arm (432), connect by rotating shaft (434) between described perpendicular arm (431) and the transverse arm (432), and the position that on perpendicular arm (431) and transverse arm (432), is offset from this rotating shaft (434) be provided with the knock hole that is used to wear alignment pin (435) (431a, 432a); Described perpendicular arm (431) is connected with axis of revolution (422) by rotating shaft (433), and the position that on this perpendicular arm (431) and axis of revolution (422), is offset from this rotating shaft (433) be provided with the knock hole that is used to wear alignment pin (436) (431b, 422a).

3, the lifting working platform of resetting and putting that takes up according to claim 2 is characterized in that described electric block (44) is fixed on the perpendicular arm (431).

4, according to claim 1, the 2 or 3 described lifting working platforms of resetting and putting that take up, it is characterized in that being connected with on the described axis of revolution (422) worm gear (48), matching with this worm gear (48) is provided with a worm screw (49) by turning motor (47) driving.

5, according to claim 1, the 2 or 3 described lifting working platforms of resetting and putting that take up, it is characterized in that: described base (41) is provided with the gear (411) that is driven by movable motor (410), and described track (31) is provided with and described gear (411) ingear tooth bar (412).

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