CN218465373U - Folding type lifting device - Google Patents

Abstract

The utility model discloses a folding lifting device, which comprises a chassis, a first-stage arm, a second-stage arm, a first-stage jack and a lifting hook, wherein one end of the first-stage jack and one end of the first-stage arm are respectively hinged on the chassis, one end of the second-stage arm is arranged at the other end of the first-stage arm, the other end of the first-stage jack is hinged on the first-stage arm, and the lifting hook is arranged at the other end of the second-stage arm; the first-stage jack is driven to extend out, and the first-stage arm can be driven to move from the horizontal direction to the vertical direction. The utility model discloses set up one-level arm, one-level jack, second grade arm on the chassis, through driving one-level jack, can control one-level arm and second grade arm and accomplish the conversion of folding and hoist and mount state, highly adjust according to required handling, be convenient for very much control the object loading and unloading and transport, improved in the tunnel protective bracket's dismouting and transportation efficiency greatly.

Description

Folding type lifting device

Technical Field

The utility model relates to a technical field is strutted in the colliery, concretely relates to foldable overhead hoist for the transportation of lane supporting equipment in the mine.

Background

In a mine for underground mining, a roadway is various passages drilled between the ground surface and an ore body and is used for transporting ore, ventilating, draining water, pedestrians and the like, and the support of the roadway has great influence on personnel safety and mine production. Particularly for coal mines, with the continuous increase of mining intensity and mining depth, roadway pressure is increased, the traditional single column supporting mode cannot meet the requirement of mine safety supporting, and more roadway supports are applied under the mine. A two-column unit hydraulic support has been widely used in coal mine tunnels due to its characteristics of large working resistance, relatively light weight, and the like. However, these supports need to be moved continuously along the roadway as the mining activity progresses. The mode of pushing and pulling the brackets in sequence mutually can cause repeated support to the roadway roof and destroy the integrity of the roadway roof, so that the large-cycle moving mode of moving the last bracket to the foremost end becomes the optimal selection. The existing method for large-cycle movement of the unit bracket mainly comprises winch pulling, single-rail hoisting and conveying and an electric truck, but the winch pulling has the problem of poor bottom plate adaptability, and the possibility of instability of the bracket in the moving process is high; the single-rail hoisting transportation mode can only travel along a set fixed rail, and the supports are located on two sides of the rail, so that the single-rail hoisting transportation cannot directly hoist or install the supports, the unit supports need to be moved below the unit cranes in a manual assistance mode, great potential safety hazards still exist in the safety mode, and the efficiency is low. The electric carrier is a special unit support carrying device, the lifting of the support can be mechanized, but the electric carrier is driven by electricity, and the cable is dragged by manual assistance when the carrier moves, so that certain defects still exist in use.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that exists among the prior art, realize the hoist and mount and the removal of support simultaneously and transport, improve work efficiency, the utility model provides a foldable overhead hoist can realize loading and unloading and transportation function, and lightweight more.

The adopted technical scheme is as follows:

a folding lifting device comprises a chassis, a primary arm, a secondary arm, a primary jack and a lifting hook, wherein one end of the primary jack and one end of the primary arm are respectively hinged to the chassis, one end of the secondary arm is installed at the other end of the primary arm, the other end of the primary jack is hinged to the primary arm, and the lifting hook is installed at the other end of the secondary arm; the first-stage jack is driven to extend out, and the first-stage arm can be driven to move from the horizontal direction to the vertical direction.

Preferably, the device further comprises a second-stage jack, two ends of the second-stage jack are hinged to the first-stage arm and the second-stage arm respectively, the second-stage jack is driven to extend out, and the lifting hook on the second-stage arm can be driven to move to a position far away from the first-stage arm by being close to the first-stage arm.

Preferably, the first-stage arm is of a telescopic arm structure, and the first-stage jack is hinged to an outer arm of the first-stage arm.

Furthermore, a rotary support is further mounted on the chassis, and one end of the primary jack and one end of the primary arm are respectively hinged with the rotary support; when the rotary support rotates, the first-stage jack, the first-stage arm, the second-stage arm and the lifting hook are driven to rotate.

Further, the second grade arm is flexible arm structure, the lifting hook install in the flexible end of second grade arm.

Preferably, a support leg is further arranged on one side of the chassis, and the support leg forms a support with the ground after being unfolded.

Furthermore, the end part of the chassis is also provided with a connecting lug connected with an external power device.

Preferably, the primary arm and the pivoting support are arranged on one side of the chassis, and the primary arm and the secondary arm are folded onto the chassis when the primary jack and the secondary jack are controlled to be contracted.

The utility model discloses technical scheme has following advantage:

A. the utility model discloses set up one-level arm, one-level jack, second grade arm on the chassis, through driving one-level jack, can control one-level arm and second grade arm and accomplish the quick switching of folding and hoist and mount state, highly adjust according to required handling, be convenient for very much control the object loading and unloading and transport, improved in the tunnel protective bracket's dismouting and transportation efficiency greatly.

B. The utility model discloses the one-level jack and the second grade jack of control one-level arm and second grade arm have still been set up, and simultaneously, one-level arm and second grade arm adopt flexible arm structural style, have improved its adaptability greatly, control one-level jack and second grade jack, can realize the complete folding processing of whole handling arm, the transportation of being more convenient for, still set up slewing bearing and landing leg simultaneously on the chassis, more conveniently carry out the handling in the diversely, and hoisting efficiency is higher.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the drawings used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a front view (extended state) of the single-folding-arm lifting device provided by the present invention;

fig. 2 is a front view (folded state) of the single-folding-arm lifting device provided by the present invention;

fig. 3 is a front view (extended state) of the double-folded arm lifting device provided by the present invention;

fig. 4 is a front view (folded state) of the double-folded arm lifting device provided by the present invention.

The identification symbols provided in the figures are illustrated as follows:

1-a chassis; 2-a rotating support; 3-first-stage jack; 4-first-level arm, 41-first-level outer arm, 42-first-level inner arm; 5-secondary arm, 51-secondary outer arm, 52-secondary inner arm; 6-connecting lugs; 7-a hook; 8-a secondary jack; 9-support leg.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the utility model provides a folding lifting device, which comprises a chassis 1, a first-level arm 4, a second-level arm 5, a first-level jack 3 and a lifting hook 7, wherein one end of the first-level jack 3 and one end of the first-level arm 4 are respectively hinged on the chassis 1, one end of the second-level arm 5 is arranged at the other end of the first-level arm 4, the other end of the first-level jack 3 is hinged on the first-level arm 4, and the lifting hook 7 is arranged at the other end of the second-level arm 5; when the first-stage jack 3 is driven to extend, the first-stage arm 4 is driven to move from the horizontal direction to the vertical direction. Fig. 1 is a schematic structural view of the primary jack 3 in a fully extended state. The first-stage jack 3 is controlled to contract, the first-stage arm 4 can be rotated along the hinged end, the first-stage arm 4 drives the second-stage arm 5 to integrally rotate to the position shown in fig. 2, and therefore the height of the whole lifting device is reduced.

The second grade arm 5 that adopts in figure 1 has flexible arm structure, and including second grade inner arm 51 and second grade outer arm 52, the one end of second grade outer arm 52 is perpendicular with the top of one-level arm 4 and is connected, and lifting hook 7 is installed in the outer hourglass end of second grade inner arm 52 of second grade arm 5. As shown in fig. 2, the secondary inner arm 51 is retracted to a folded state formed in the secondary outer arm 52.

The utility model discloses can also set up one-level arm 4 into flexible arm structure in fig. 1, one-level arm 4 includes one-level outer arm 41 and one-level inner arm 42, and one-level jack 3 is articulated mutually with the lateral surface of one-level outer arm 41.

As shown in fig. 3, the utility model discloses still set up second grade jack 8 on overhead hoist, formed two folding arm structure, second grade jack 8's both ends articulate respectively on the outer arm of the one-level 41 of one-level arm 4 and the outer arm of the second grade 51 of second grade arm 5, drive the shrink of second grade jack 8, it drives lifting hook 7 on the second grade arm 5 and moves to pressing close to chassis 1 department by keeping away from chassis 1, as the fold condition shown in fig. 4, whole one-level arm 4, one-level jack 3, second grade arm 5 and second grade jack 8 are all folded on chassis 1, the transportation of being more convenient for. When needed, the lifting supporting state shown in the figure 3 can be recovered by controlling the first-stage jack 3 and the second-stage jack 8.

In order to facilitate lifting, the utility model also installs a rotary support 2 on the chassis 1, one end of the first-level jack 3 and one end of the first-level arm 4 are respectively hinged with the rotary support 2, namely the lower end of the first-level outer arm 4 in the figure is hinged with the rotary support 2, and the lower end of the first-level jack 3 is hinged with the rotary support 2; when the rotary support 2 is controlled to rotate, the first-stage jack 3, the first-stage arm 4, the second-stage jack 8, the second-stage arm 5 and the lifting hook 7 are driven to synchronously rotate, and the rotation angle of the rotary support 2 can be controlled according to the position of a support to be lifted.

The utility model discloses preferentially set up one-level arm 4 and pivoting support 2 in one side of chassis 1, when control one-level jack 3 and the 8 contractions of second grade jack, make one-level arm 4 and second grade arm 5 fold chassis 1 on, of course, also convenient the support hoist and mount to the middle part region on chassis of treating the handling.

In order to guarantee the stability of hoist and mount process, the utility model discloses still be equipped with landing leg 9 in chassis 1's folding region outside, 9 expandes the back and form the support with ground, prevent that whole emergence from empting.

When the lifting device is used for transferring, the end part of the chassis 1 is also provided with a connecting lug 6 connected with an external power device, and the connecting lug 6 is pulled by other winch devices or diesel power devices to drive the whole lifting device to move.

As shown in fig. 3, the specific hoisting method is as follows:

a. moving the lifting device to the position near the articles to be lifted, and expanding the supporting legs 9 to be firmly connected with the ground;

b. operating the first-stage jack and the second-stage jack, and adjusting the height of the lifting hook;

c. rotating the rotary support to enable the lifting hook to be positioned at the upper part of the gravity center of the object to be lifted and connecting the lifting hook with the object to be lifted;

d. operating the primary arm, adjusting the height of the secondary arm, and driving the object to be lifted to rise;

e. rotating the rotary support, and properly contracting the secondary inner arm to ensure that the object to be lifted is placed in the middle of the chassis, and then contracting the primary arm and the secondary arm until the object to be lifted falls on the chassis safely;

f. the hoisting device is moved by a power part or a power driven vehicle;

g. after the object is moved in place, the steps are reversed, and the object can be hung and unloaded.

The utility model discloses the part not mentioned all is applicable to prior art.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (8)

1. The folding lifting device is characterized by comprising a chassis (1), a primary arm (4), a secondary arm (5), a primary jack (3) and a lifting hook (7), wherein one end of the primary jack (3) and one end of the primary arm (4) are respectively hinged to the chassis (1), one end of the secondary arm (5) is installed at the other end of the primary arm (4), the other end of the primary jack (3) is hinged to the primary arm (4), and the lifting hook (7) is installed at the other end of the secondary arm (5); the primary jack (3) is driven to extend out, and the primary arm (4) can be driven to move from the horizontal direction to the vertical direction.

2. The folding and lifting device as recited in claim 1, further comprising a secondary jack (8), wherein both ends of the secondary jack (8) are respectively hinged to the primary arm (4) and the secondary arm (5), the secondary jack (8) is driven to extend, and the lifting hook (7) on the secondary arm (5) can be driven to move from being close to the primary arm (4) to being far away from the primary arm (4).

3. Folding handling device according to claim 2, characterized in that the primary arm (4) is of telescopic arm construction, and the primary jack (3) is hinged to the outer arm of the primary arm (4).

4. The folding and lifting device as recited in claim 2 or 3, characterized in that a rotary support (2) is further mounted on the chassis (1), and one end of the primary jack (3) and one end of the primary arm (4) are respectively hinged with the rotary support (2); when the rotary support (2) rotates, the first-stage jack (3), the first-stage arm (4), the second-stage arm (5) and the lifting hook (7) are driven to rotate.

5. The folding trolley as claimed in claim 4, characterized in that the secondary arm (5) is of telescopic arm construction, the hook (7) being mounted at the telescopic end of the secondary arm (5).

6. The folding trolley as claimed in claim 5, characterized in that legs (9) are provided on one side of the chassis (1), said legs (9) forming a support with the ground after being unfolded.

7. The folding and lifting device as claimed in claim 6, characterized in that the end of the chassis (1) is further provided with a coupling lug (6) for connection with an external power device.

8. The folding and lifting device as recited in claim 7, characterized in that the primary arm (4) and the pivoting support (2) are arranged on one side of the chassis (1), and when the primary jack (3) and the secondary jack (8) are controlled to be retracted, the primary arm (4) and the secondary arm (5) are folded onto the chassis (1).

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