KR20140057756A - Self-propelled lift for transferring heavy structure - Google Patents

Self-propelled lift for transferring heavy structure Download PDF

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Publication number
KR20140057756A
KR20140057756A KR1020120123894A KR20120123894A KR20140057756A KR 20140057756 A KR20140057756 A KR 20140057756A KR 1020120123894 A KR1020120123894 A KR 1020120123894A KR 20120123894 A KR20120123894 A KR 20120123894A KR 20140057756 A KR20140057756 A KR 20140057756A
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KR
South Korea
Prior art keywords
lift
self
propelled
lifting
electric
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KR1020120123894A
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Korean (ko)
Inventor
김병찬
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김병찬
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Priority to KR1020120123894A priority Critical patent/KR20140057756A/en
Publication of KR20140057756A publication Critical patent/KR20140057756A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
    • B60F1/00—Vehicles for use both on rail and on road; Conversions therefor
    • B60F1/04—Vehicles for use both on rail and on road; Conversions therefor with rail and road wheels on different axles
    • B60F1/043—Vehicles comprising own propelling units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/68—Jibs foldable or otherwise adjustable in configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B66F7/12—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks
    • B66F7/14—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks screw operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
    • B66F7/18—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by a single central jack
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • H01H13/18—Operating parts, e.g. push-button adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

The present invention relates to a self-propelled lift for transporting a heavy structure, which enables workers to easily lift a large-scale heavy structure with strong power and transport the structure to an accurate position to be easily constructed in an industrial site or a construction site, such as a bridge construction site or a block construction site. The self-propelled lift for transporting a heavy structure according to the present invention comprises a self-propelled bogie part (10) having a plurality of wheels (11) rolling along the ground surface and a wheel driving unit for rotating the wheels (11) so as to move to a wanted position in a self-propelled manner; a lift base (21) mounted on the upper part of the self-propelled bogie part (10) to be able to rotate; a plurality of support beams (20) vertically mounted on the upper surface of the lift base (21); a lift member (30) which is mounted to be lifted up and down along the support beam (20) and on which a heavy structure (C) to be transported is seated; and a lifting unit for lifting the lift member (30) to a certain height.

Description

{Self-Propelled Lift for Transferring Heavy Structure}

The present invention relates to an electric lift used in a field for constructing and transporting a heavy structure for construction civil works, and more particularly, to an electric lift used in a heavy construction structure for large and large industrial buildings such as civil engineering, construction and shipbuilding The present invention relates to an electric lift for self-propelled heavy structure transportation, which lifts a heavy structure and transfers it to an accurate position by itself.

Currently, cranes are used to move heavy structures in various industrial sites and construction sites. In case of general cranes, the capacity of lifting is small compared to the size of equipment, and the efficiency is considerably reduced considering site entry and workability.

There are tower cranes and boom cranes which are mainly used in the industrial field. Tower crane is mainly used for high-level work. There are many safety accidents such as crane being turned over during work. Also, the work radius is limited and the work capacity is very low compared to the scale.

In the case of the boom cranes, it is mounted on the vehicle and the mobility to the site is good. However, since the size of the vehicle itself is large, there are restrictions on the operation due to restriction of the road condition and limited field conditions due to the train, In addition, there is a case where the hoisting ability is significantly lowered depending on the angle of the boom zone, and a crane having a capacity much larger than the weight of the structure is required for the operation.

In case of construction site, prefabricated construction method of block unit is preferred. In order to shorten the construction air, large construction projects are used to construct the blocks as a block-type precast and transfer them to the site. At this time, the size and weight of the block are used as a method of moving to the site and a crane . ≪ / RTI > Especially, in the case of downtown construction, in order to minimize the traffic of the vehicles and minimize the inconvenience of the citizens, it is necessary to apply the equipment which can exhibit the maximum working capacity in a narrow space. As described above, the existing tower cranes or boom cranes, Of the population.

Korean Patent Publication No. 10-2011-0057551 (June 1, 2011) Japanese Patent Application Laid-Open No. 05-319789 (1993.12.03)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a small size and a compact structure, which provides a strong pulling performance and a small capacity in a small area, And a self-propelled type self-propelled electric lift for transporting a heavy construction structure for civil construction, which can ensure accuracy and safety during operation and can travel on its own to a desired position.

According to yet another object of the present invention, there is provided a railway vehicle which can freely and freely move in a narrow area, which is freely movable in comparison with a conventional crane, so that it is excellent in field mobility and workability, And to provide a self-propelled electric lift for transporting a heavy structure for civil construction.

According to another aspect of the present invention, there is provided a structure for lifting and lowering a lifting body of a heavy construction structure, such as a civil engineering work, through a crane provided in a bogie without a separate crane, The purpose of the lift is to provide.

That is, the present invention provides a compact size and configuration, and can be turned frequently and swiveled to provide a strong pulling performance and a feeding ability in a small area, thereby providing excellent on-site mobility and workability, The lifting portion of the self-propelled truck can be freely swiveled only in the state where the upper portion of the self-propelled truck (i.e., the lifting portion) is free to pivot freely, The present invention provides a self-propelled electric lift for transporting a heavy structure.

According to another aspect of the present invention, there is provided a lifting structure for lifting a heavy structure from one position to another. The lifting structure includes a plurality of wheels rolling along a ground, A self-propelled truck having a unit installed therein and capable of traveling to a desired position by itself; A lift base installed at an upper portion of the self propelling truck so as to be slewable; A plurality of support beams vertically installed on the upper surface of the lift base in a vertical direction; A lift member installed to vertically move up and down along the support beams and having a weight structure C to be transferred placed thereon; And a lifting and driving unit for lifting the lifting member to an arbitrary height. The lifting drive unit for lifting the lifting member to an arbitrary height is provided.

According to the present invention, there are the following advantages.

First, the electric lift can be freely moved to any desired position through forward / backward movement and left / right movement as a self-propelled type, and a structure in which the lifting structure lifts the weight structure while the lifting member is lifted vertically by the lifting / It provides a strong impression performance and transport ability in a small area, so it has a very good on-site mobility and workability, and can secure accuracy and safety during work.

Second, since the wheel of the electric lift becomes an endless track or a wheel, a steering unit capable of adjusting the engine part, the generator, and the direction is installed like a car, so that the speed control and the moving direction can be controlled like a car. That is, according to the present invention, since the drive engine and the generator for driving the lift crane are integrated in the truck, there is no need for a separate generator and a link control device, and the increase and decrease of the travel speed can be freely performed.

Thirdly, according to the present invention, there is an advantage that the self-propelled bogie portion is stable and only the lifting portion is pivotable by the swing bearing, the lifting portion is stable, and only the self-propelled bogie portion can be pivoted, thereby increasing the degree of freedom of the electric lift.

Fourth, not only is it possible to work on public roads, but also it is possible to work on rails when rail wheels are mounted, so that the range of movement of electric lifts is not limited to roads but extends to the rails. There is an advantage to be able to.

Fifth, when a rotatable unit that can freely rotate on the lift member is constructed, the degree of freedom of the lift member is increased to prevent the displacement due to the flow of the weight structure from being transmitted directly to the support beam of the electric lift when the weight structure is transferred, It is possible to prevent a phenomenon such as warping or damage, and there is an advantage that a phenomenon in which the electric lift is conducted can be prevented.

In addition, when there is an unstable element such as a protrusion in a portion of the lower surface of the heavy structure that is in contact with the seat block, the rotation of the rotary unit changes the position of the seat block so that the seat block avoids unstable elements of the heavy structure, There is also an advantage that can be supported.

Sixth, if the seat block of the lift member is configured to be rotatable about a horizontal hinge axis, even if the lower surface of the weight structure is slightly inclined, the seat block is inclined corresponding to the inclined surface of the weight structure, There is also an advantage to be able to do.

Seventh, although it is possible to support a desired load capacity as one large capacity screw jack, a screw jack constituting an electric lift may be combined with a plurality of screw jacks having a small load capacity, such as two or four, It is possible to overcome the disadvantage that it is difficult to manufacture and maintain the reducer and the gear portion having a large load capacity and the cost is high by replacing the large capacity screw jack in the case of constructing to be able to support the desired load capacity by the sum of have.

Eighth, the electric lift of the present invention can automatically detect and control the operation state of the electric lift in real time through a sensing system including a limit sensor, a height sensor, and the like. Therefore, it is possible to prevent a safety accident from occurring due to a malfunction of the electric lift, and there is an advantage that smooth and quick work can be performed.

1 is a front view of a self-propelled electric lift for transferring a tire-type weight structure according to a first embodiment of the present invention.
Fig. 2 is a side view of the waist portion viewed from the direction "A" in Fig. 1, and is a side view of the lifting portion.
Fig. 3 is a plan view of the main portion of Fig. 1, showing a lifting portion with the driver's seat and engine room omitted.
4A is a front view of a self-propelled motor-driven lift for transferring a tire-type weight structure to which a roller according to a second embodiment of the present invention is applied.
FIG. 4B is a plan view of FIG.
FIG. 5 is a front view of a self-propelled electric lift for transporting a tire-type heavy structure to which a boom bar is applied, according to a third embodiment of the present invention.
6 is a front view of a self-propelled electric lift for transporting a heavy structure having an infinite track type self-propelled truck according to a fourth embodiment of the present invention.
7 is a front view of a self-propelled electric lift for transferring a weight structure having an infinite track type spade-mounted self-propelled truck according to a fifth embodiment of the present invention
8 is a front view of a self-propelled electric lift for conveying a heavy structure having a self-propelled braking portion to which an endless track type roller according to a sixth embodiment of the present invention is applied
9 is a front view of a self-propelled electric lift for lifting an endless track type heavy structure to which a boom bar is applied, according to a seventh embodiment of the present invention.
10 is a front view of a recessed portion of a self-propelled electric lift for conveying a heavy structure according to an eighth embodiment of the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a self-propelled motor-driven lifting structure according to the present invention will be described in detail with reference to the accompanying drawings.

[Example 1]

1 to 3, a self-propelled motor-driven lift for transferring a heavy structure according to a preferred embodiment of the present invention includes a plurality of wheels 11 rolling along a ground surface, A lift base 21 mounted on the upper part of the self-propelled truck 10 so as to be able to slew the vehicle, a lift base 21 mounted on the lift base 21, A plurality of support beams 20 installed vertically up and down on the upper surface of the support frame 21 and a lifting structure 20 vertically moving up and down along the support beams 20, A lift member 30 and an elevation driving unit for elevating the lift member 30 to an arbitrary height.

A total of four wheels 11 constituting the self-propelled truck 10 are installed on four corners of the self-propelled truck 10, each of which is freely rotatable, and at the same time, a urethane or a tire wheel capable of steering The two sets of wheels 11 are connected to each other by a rotating shaft 12, and one of the two sets of wheels 11 is connected to the wheel driving unit and rotates.

In the above description, 'turning' means changing the direction without changing the position. A known slewing ring bearing is installed between the self-propelled truck 10 and the lift base 21, An operation can be performed.

For reference, the SINGING RING BEARING is a well known bearing device used for tanks and excavators. It allows the bottom of the excavator to move without rotating and only the lower part of the excavator can be rotated. In the tank, the turret does not move, Function. That is, the swivel bearing is a bearing device that functions to turn the opposite side 360 degrees in a state where the upper part or the lower part of the excavator or the tank is kept still.

The reason why the lift base 21 is installed on the upper part of the self-propelled truck 10 in a slewing manner is that the lift base 21 can be rotated in a state where the self- And the lift base 21 can change the traveling direction by 360 ° while rotating only the self-propelled truck in a state where the lift base 21 remains in position without changing the position.

In the present embodiment, the wheel drive unit includes an engine, a transmission, a steering device, a braking device, a generator, and the like, which are driving sources such as a normal vehicle or a middle vehicle.

Therefore, the self-propelled truck 10 includes an engine, a transmission, a steering device, a braking device, a generator, and the like that constitute the wheel driving unit, as well as a driver seat installed above the lift base 21 .

Therefore, in the self-propelled electric lift of this embodiment, the generator and the generator, which are the driving motors for running, are integrated in the bogie portion, and a separate generator and connection line control device are unnecessary. It is possible to accelerate and decelerate or stop at a desired position.

Meanwhile, the support beam 20 is fixedly installed at each corner of the lift base 21, which is rotatably installed on the upper portion of the self-propelled truck 10. The support beam 20 may be completely fixed to the lift base 21, but it is preferable that the support beam 20 is coupled to the lift base 21 by a fastening means such as a bolt or the like so as to be detachable.

The support beam 20 is a rigid steel material capable of withstanding the load of a heavy weight structure, and preferably has a circular or H-shaped cross section or an I-shaped cross section. The plurality of support beams 20 are connected to each other and supported by a horizontal reinforcing frame 25.

A guide rail (22) for guiding the movement of the lift member (30) is installed on the inner side surface of the support beam (20) so as to extend in the vertical direction. The guide rail 22 can be formed using a known LM guide or the like.

The lift member 30 includes a lift block 31 having both ends connected to the guide rail 22 of the support beam 20 and moving up and down, And a seat block mounted on the rotation unit 32 and supporting the weight structure C. The seat unit 20 includes a seat cushion 20, Each of the seat blocks 36 is disposed on an upper portion of the rotary unit 32 so as to be opposed to each other by a predetermined distance. And is rotatable in the up and down direction about the axis 37.

The rotation unit 32 includes a fixed block 33 fixed to the center of the lift block 31 and a fixed block 33 coupled to the fixed block 33 via a rotary bearing 34. [ And a rotating block 35 rotating about an axis perpendicular to the axis of rotation. The seat block 36 is installed on the upper surface of the rotation block 35.

As described above, when the seat block 36 is coupled to the rotatable unit 32 which is freely rotatable with respect to the lift block 31, any one of a plurality of electric lifts is used to transfer a large weight structure C such as a bridge The load applied to the weight structure C is not directly transmitted to the support beam 20 of the electric lift but the weight structure C is not transferred to the rotary unit 32 The support beam 20 is prevented from being bent or damaged and the electric lift is prevented from being conducted.

When there is an unstable element such as a protrusion in a portion of the lower surface of the weight structure C that is in contact with the seat block 36, the rotation of the rotation unit 32 is performed to vary the position of the seat block 36, The block 36 can be made to support the weight structure C by avoiding the unstable elements of the weight structure C. [

In addition, as described above, if the seat block 36 is configured to be rotatable up and down on the horizontal hinge shaft 37 on the rotation unit 32, even if the lower surface of the weight structure C is slightly inclined, 36 are inclined corresponding to the inclined surfaces of the weight structure C, the weight structure C can be stably supported.

The lifting and lowering driving unit includes a screw jack 41 having a screw thread formed on the outer surface of the lift base 21 and vertically installed at a central portion of the lift base 21, a lift motor 43 for rotating the screw jack 41, And a nut portion 42 which moves along the screw jack 41 by the rotation of the screw jack 41 and is engaged with the lift member 30. A gear box 44 for transmitting the rotational force of the lift motor 43 to the screw jack 41 is disposed between the lift motor 43 and the screw jack 41. The gear box 44 includes a brake with a deceleration function and a stop function during operation.

In this embodiment, the large-capacity screw jack 41 is shown as being capable of supporting a desired load capacity as one. However, the screw jack 41 constituting the electric lift may have two or four screw jacks having a small load capacity A plurality of the unit screw jacks may be combined to support a desired load capacity by the sum of the load capacities of the unit screw jacks.

This is because there is a disadvantage in that when the load capacity is applied to only one large-capacity screw jack 41, the reducer or the gear portion becomes large. Therefore, the screw, reducer and gear portion with large load capacity are difficult to manufacture, If you have to overcome these shortcomings, you can change the design by replacing one large screw jack with a combination of several smaller screw jacks.

On the other hand, in the present embodiment, the elevation driving unit is constituted by using the screw jack 41 to precisely control the lifting height of the lift member 30. Alternatively, the lifting and lowering driving unit may include a hydraulic pump and a hydraulic pump for supplying the hydraulic pressure to the hydraulic jack The lift member 30 may be moved up and down.

The self-propelled motor-driven lift of this embodiment is equipped with a spade 60, which prevents conduction of the self-propelled motor-lift, before and after the self-propelled truck 10, respectively.

At this time, the spade 60 is configured to pivot about the pivot axis to be in close contact with the ground or away from the ground.

Therefore, in the self-propelled motor-driven lift of the present embodiment, the spade 60 is brought into contact with the ground surface to support the self-propelled motor-driven lift, thereby effectively preventing the self-powered motor-lift from being conducted.

Further, the electric lift of the present invention is equipped with a detection system for automatically detecting and controlling the operating state in real time. 1 to 3, the detection system is installed at each of the upper end and the lower end of the support beam 20 to detect the upper and lower positions of the lift block 31 to prevent malfunction of the elevation driving unit. And a height detection sensor 52 for sensing the height of the lift member 30 in a stopped state and controlling the operation of the elevation driving unit.

In addition, a surveillance camera (not shown) such as a CCTV camera may be additionally mounted on any component of the electric lift in case of failure or malfunction of one or more of the sensors 51 and 52.

The height detection sensor 52 of the detection system recognizes the alignment mark (or a specially designed structure) displayed at the set height of the weight structure placement position, sets the height at this time to the lift height of the lift member 30, The weight structure C is constructed in the step of FIG.

The electric lift of the present invention constructed as above operates as follows.

When the engine constituting the wheel drive unit is driven in a state in which the weight structure C to be conveyed is fixed on the seat block 36 of the lift member 30, the self propelled truck 10 is operated by the operation of the steering device And moves itself in a desired direction.

The lift motor 43 is operated to lift the weight structure C by moving the lift motor 43 to a desired position by stopping the heavy structure C at a position where the heavy structure C is to be installed. The screw jack 41 is rotated by the rotation of the lift motor 43 and the nut member 42 and the lift member 30 coupled thereto are moved upward by the guidance of the guide rail 22 And the weight structure C reaches the position where it will be placed.

Then, the weight structure C is seated on the fixed structure at the temporary position while moving the self-propelled truck 10 by a predetermined distance.

The self-propelled electric lift of the present invention can be used alone to easily and accurately set the heavy structure C having a large and heavy weight.

In addition, the self-propelled motor-driven lift of the present invention may use only the self-propelled truck 10 after the lift base 21 is separated from the self-propelled truck 10.

[Example 2]

4A is a front view of a self-propelled motorized lift for transferring a tire-type weight structure to which a roller according to a second embodiment of the present invention is applied, and FIG. 4B is a plan view of FIG. 4A.

4A and 4B, the configuration of the self-propelled motor-driven lift of the present embodiment is basically the same as that of the self-propelled motor-driven lift of the first embodiment described above, except that the front and rear left and right There is a difference in that the rail wheels 70 are provided.

At this time, the rail wheel 70 is configured to pivot around a pivot shaft so as to be closely attached to a rail (not shown) or to be separated from the rail.

Therefore, in the self-propelled motor-driven lift of this embodiment, since the rail wheels 70 are provided on the front and rear sides of the self-propelled truck 10, the rail wheels 70 are used on the rails, Thereby enabling movement.

That is, if the spindle 60 of the second embodiment is replaceable and the rail wheel 70 is used, it can be operated using a tire on a flat surface and moved using the rail wheel 70 on the rail, The electric lift can be precisely controlled on the rail.

When the rail wheel 70 is provided on the self-supporting truck 10 so as to be able to roll along the rail as in the present embodiment, in addition to the above-described limit sensor 51 and height sensor 52, (Not shown) that stops the operation of the electric lift by sensing the height change due to the ground settlement while the vehicle is moving, measures the distance between the electric lifts when conveying the weight structure (C) by using several electric lifts at the same time And an interval measuring sensor (not shown) for monitoring whether synchronous movement of the electric lifts is performed. In addition, a surveillance camera (not shown) such as a CCTV camera may be additionally mounted on any component of the electric lift in case of failure or malfunction of one or more of the sensors.

The limit sensor 51, the height sensor 52, the ground sensor and the interval sensor may be connected to a control panel (not shown) and used for controlling the electric lift. For example, when four weightlifters (C) are transported by using four electric lifts at the same time, the sensors of each electric lift are connected to one control panel to transmit the status information of each electric lift to the control panel , And the operator can individually control the operation of the four electric lifts through a single control panel. At this time, the control of each electric lift can be performed by using a remote controller.

The ground detection sensor detects the sudden change in the height of the ground during the transportation of the heavy structure C by using several electric lifts at the same time and stops the operation of the electric lift, And acts to prevent the structure of the falling or electric lift from being twisted or damaged. The ground detection sensor can be constructed using various known sensors such as a laser sensor or a displacement sensor which is installed on one side of the support beam 20 of the electric lift and recognizes a mark or a specific structure displayed on the wall surface of the installation position have.

The interval measuring sensor has a function of monitoring whether each of the electric lifts moves synchronously while maintaining a predetermined interval when one weight structure C is transferred using a plurality of electric lifts at the same time, To prevent the occurrence of safety accidents due to the collapse of the balance due to the malfunction.

[Example 3]

Fig. 5 is a front view of a self-propelled electric lift for transporting a weight structure, to which a boom bar 80 is applied, according to a third embodiment of the present invention.

5, the configuration of the self-propelled motor-driven lift of this embodiment is basically the same as that of the self-propelled motor-driven one of the above-described [Embodiment 1] and [Embodiment 2] 10 in that the boom frame 80 is installed on one side.

Specifically, according to the present embodiment, the lifting unit including the support beam 20, the lift member 30, and the lifting and driving unit is installed on one side of the lift base 21 as an electric lift itself And a boom bar 80 is provided for lifting up and down the lift base 21.

Reference numeral 82 denotes a main arm which is an element constituting the boom bar 80. [

In the self-propelled motor-lift of the present embodiment having such a configuration, the lifting portion can be raised and lowered by itself on the bogie portion 10 without using a separate crane by using the boom frame 80. [

That is, the lifting portion can be lowered from the bogie portion 10 of the self-propelled electric lift by using the boom frame 80 after releasing the fastening member for fixing the lifting portion to the lift base 21, The lowered lifting portion can be lifted onto the carriage of the self-propelled electric lift using the boom table 80. [

[Example 4]

6 is a front view of a self-propelled motor-driven lift for transferring a weight structure having a self-propelled ladder of an endless track type according to a fourth embodiment of the present invention.

6, the configuration of the self-propelled motor-driven lift of this embodiment is basically the same as that of the self-propelled motor-driven one of the above-described [Embodiment 1] - [Embodiment 3] 10).

That is, in the self-propelled motor-driven lift of the present embodiment, the wheels 11 constituting the self-propelled truck 10 are installed in an endless track type rather than a tire type.

Specifically, the wheel 11 constituting the self-propelled truck 10 is an endless track which is rotatably arranged on both the left and right sides, and the endless track is connected to the wheel drive unit and receives the power to rotate.

The self-propelled motor-driven lift of the present embodiment having the above-described structure is characterized in that the wheel 11 constituting the self-propelled truck 10 is of the endless track type, It can be disadvantageous in speed, but it has an advantage that it is more stable in terms of conduction.

[Example 5]

7 is a perspective view of a fifth embodiment of the present invention in which a self-propelled electric lift for conveying a heavy structure having a self-propelled truck 10 having an endless track type and a spade 60 provided on front and rear sides of the self- FIG.

Referring to Fig. 7, the self-propelled motor-driven lift of this embodiment is mounted on the wheel 11 constituting the self-propelled truck 10 in a cantilever manner instead of a tire type, and is itself relatively stable against conduction, Spades (60) are mounted on front and rear sides of the self-propelled truck (10) to support the self-propelled motor-lift.

The spade (60) is configured to pivot about the pivot axis to be in close contact with the ground or away from the ground.

The self-propelled motor-driven lift of the present embodiment having the above-described structure is configured such that the wheels 11 constituting the self-propelled truck 10 are installed in an endless track type rather than a tire type, 60 are brought into contact with the ground to support the self-contained electric lift, thereby further effectively preventing the self-contained electric lift from being conducted.

Therefore, according to the present embodiment, it is possible to maximize the operational stability of the self-propelled electric lift for lifting the heavy structure.

[Example 6]

Fig. 8 is a front view of a self-propelled motor-driven lift for transporting a weight structure having a self-propelled truck 10 having a self-propelled truck 10 having an endless track type, according to a sixth embodiment of the present invention.

8, the self-propelled motor-driven lift of this embodiment is characterized in that the wheels 11 constituting the self-propelled truck 10 are of the infinite track type stable with respect to the transmission and are provided on the front and rear sides of the self- A wheel 70 is installed.

The rail wheel 70 is configured to pivot about a pivot shaft to be closely attached to the rail or to be separated from the rail.

On the other hand, the present embodiment illustrates that the installation directions of the lift motor 43 and the gear box 44 may be different from those of the other embodiments.

The self-propelled motor-driven lift of the present embodiment having the above-described structure is configured such that the wheels 11 constituting the self-propelled truck 10 are installed in an endless track type rather than a tire type so as to be relatively stable against conduction, Since the rail wheels 70 are provided on the front and rear left and right sides, the rail wheels 70 can be moved on the rails even when the flat wheels are operated using the endless track.

That is, in this embodiment, the portion of the spade 60 of the above-described [Embodiment 5] is replaceable, and when the rail wheel 70 is used, the rail wheel 70 is operated on an unlimited track, And in this case, more precise control of the electric lift is possible on the rail.

[Example 7]

FIG. 9 is a front view of a self-propelled electric lift for lifting an endless track type heavy structure to which a boom bar 80 is applied, according to a seventh embodiment of the present invention.

9, the structure of the self-propelled motor-driven lift of this embodiment is basically the same as that of the self-propelled motor-driven lift of any of the above-described [Embodiment 4] to [Embodiment 6] The boom frame 80 is provided on one side.

That is, in the self-propelled motor-driven lift according to the present embodiment, the wheel 11 constituting the bogie portion 10 is of the infinite track type stable with respect to the conduction and is provided with the wheel 11 and one side of the lift base 21 constituting the bogie portion The boom frame 80 is installed.

More specifically, the self-propelled motor-driven lift according to the present embodiment includes a lifting unit including the support beam 20, the lift member 30, and the lifting and lowering unit, as an electric lift itself without a separate external crane, A swing platform 80 is provided at one side of the lift base 21 so as to be able to be pulled up or down.

In the self-propelled lift of this embodiment configured as described above, the lifting portion provided on the lift base 21 is lifted up by itself using a boom bar 80 provided at one side of the lift base 21, You can raise or lower it.

[ Example 8 ]

FIG. 10 is a front view of a recessed portion of a self-propelled electric lift for conveying a heavy structure according to an eighth embodiment of the present invention, wherein (A) is a state before lowering the height and (B) is a state after lowering the height.

10, the structure of the self-propelled motor-driven lift of this embodiment is a structure applicable to any of the self-propelled motor-driven lifts of the above-described [Embodiment 4] to [Embodiment 7], in which the support beam 20 is divided It is characterized in that it is constructed as a general purpose so that it can be applied even in a low-height field by installing a joint part.

That is, according to the present embodiment, the supporting beam 20 is divided into at least two portions and a joint is provided in the middle of the divided portion to loosen the joint portion at a low height to lower the height of the support beam, And by installing a screw jack 41a having a low height, it can be flexibly applied to the height of the site.

For example, when the supporting beam 20 is composed of the upper side beam 20a and the lower side beam 20b as shown in FIG. 10 (a), when it is desired to apply to a site having a low height, By lowering the side beam 20a to reduce the height of the support beam and by replacing the screw jack 40 with a lower screw jack 41a, it can be fitted to a lower site.

Accordingly, the self-propelled electric lift of the present embodiment can be applied flexibly in accordance with the height of the field, which makes it possible to further enhance the field applicability.

The embodiments of the self-propelled motor-driven lift for transferring a heavy structure according to the present invention described above are presented for illustrative purposes only to facilitate understanding of the present invention.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventive concept as defined by the appended claims. Of course.

10: Self-propelled ladder 11: Wheel
12: rotating shaft 20: supporting beam
20a: upper side beam 20b: lower side beam
21: lift base 22: guide rail
30: Lift member 31: Lift block
32: rotation unit 33: fixed block
34: rotating bearing 35: rotating block
36: seat block 37: hinge shaft
41, 41a: screw jack 42: nut part
43: Lift motor 44: Gear box
51: limit sensor 52: height sensor
60: Spade 70: Rail wheel
80: boom 82: main arm

Claims (11)

A weighing structure transferring lift for transferring a weighing structure from one position to another,
A plurality of wheels 11 that roll along a ground surface and a wheel drive unit that rotates the wheel 11 and is capable of traveling to a desired position by itself;
A lift base 21 installed at an upper portion of the self propelling truck 10 in a slewing manner;
A plurality of support beams 20 installed vertically up and down on the upper surface of the lift base 21;
A lift member 30 installed to vertically move up and down along the support beam 20 and having a weight structure C to be transferred placed thereon;
And an elevation driving unit for elevating the lift member (30) to an arbitrary height. ≪ RTI ID = 0.0 > [10] < / RTI > The method according to claim 1,
The elevation drive unit includes:
A screw jack 41 vertically installed vertically in the self-propelled truck 10 and having threads formed on its outer surface;
A lift motor 43 for rotating the screw jack 41;
And a nut part (42) moving along the screw jack (41) by rotation of the screw jack (41) and coupled with the lift member (30) Electric lift. The method according to claim 1,
The elevation drive unit includes:
A hydraulic jack installed at the self-propelled truck part 10 so as to be movable up and down by a predetermined distance and having an end connected to the lift member 30;
And a hydraulic pump for supplying the hydraulic pressure to the hydraulic jack. ≪ RTI ID = 0.0 > [10] < / RTI > 4. The method according to any one of claims 1 to 3,
The lift member (30)
A lift block 31 having both ends movably connected to the support beams 20 up and down and moving up and down along the support beams 20;
A rotation unit (32) configured to be freely rotatable about a vertical axis on the lift block (31);
And a seat block (36) installed on the rotating unit (32) to support the weight structure (C). 5. The method of claim 4,
Wherein the seat block (36) is installed to be rotatable in a vertical direction around a horizontal hinge shaft (37) at an upper portion of the rotary unit (32). 4. The method according to any one of claims 1 to 3,
A limit sensor 51 installed at each of the upper end and the lower end of the support beam 20 to sense an upper limit position and a lower limit position of the lift member 30 to prevent malfunction of the elevation driving unit,
And a height detection sensor (52) for detecting the height of the lift member (30) in a stopped state of the electric lift and controlling the operation of the elevation driving unit,
Further comprising a sensing system for monitoring the operating state of the electric lift in real time to control the operation of the elevator driving unit. The method according to claim 1,
Wherein a spade (60) is provided on the front and rear of the self-propelled truck (10) to prevent the self-propelled truck from falling off. The method according to claim 1,
And a rail wheel (70) is installed on the rails before and after the self-propelled truck (10) so that the electric lift can run on the rails. The method according to claim 1,
On one side of the lift base 21,
A boom bar 80 is further provided for lifting or lowering the lifting unit including the support beam 20, the lift member 30, and the lifting and lowering unit onto the lift base 21 without a separate external crane. Self - propelled electric lift for heavy construction for civil engineering works. 3. The method of claim 2,
The screw jack (41) is composed of a plurality of screw jacks having a small load capacity, and is configured to support a desired load capacity by the sum of the plurality of screw jacks. Electric lift. The method according to claim 1,
Wherein the support beam (20) is divided along the longitudinal direction and a joint is provided in the middle of the divided beam.
KR1020120123894A 2012-11-05 2012-11-05 Self-propelled lift for transferring heavy structure KR20140057756A (en)

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Application Number Priority Date Filing Date Title
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105967097A (en) * 2016-06-16 2016-09-28 成都迅德科技有限公司 Novel lifting device for building
CN108328512A (en) * 2018-02-09 2018-07-27 陈云燕 A kind of construction Machines supporting rack for being used as working at height ladder
CN108916561A (en) * 2018-07-11 2018-11-30 苏州频聿精密机械有限公司 One kind being based on aero-engine support device
CN110901530A (en) * 2019-12-10 2020-03-24 温州科丰汽车零部件有限公司 Vehicle reversing radar sensor
CN111547643A (en) * 2020-05-11 2020-08-18 高丽媛 Handling device for transporting household refrigerator
KR20200145293A (en) 2019-06-21 2020-12-30 이현정 Lift apparatus
CN113200452A (en) * 2021-04-22 2021-08-03 神华铁路装备有限责任公司 Device for dismounting large parts of bogie
CN114835051A (en) * 2022-06-15 2022-08-02 藏存峰 Material loading attachment for building engineering
KR20230015699A (en) * 2021-07-23 2023-01-31 (주)티이디 Apparatus for lifting
CN116533692A (en) * 2023-03-21 2023-08-04 广东科研世智能科技有限公司 Intelligent traction trolley for motor train unit

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105967097A (en) * 2016-06-16 2016-09-28 成都迅德科技有限公司 Novel lifting device for building
CN108328512A (en) * 2018-02-09 2018-07-27 陈云燕 A kind of construction Machines supporting rack for being used as working at height ladder
CN108916561A (en) * 2018-07-11 2018-11-30 苏州频聿精密机械有限公司 One kind being based on aero-engine support device
KR20200145293A (en) 2019-06-21 2020-12-30 이현정 Lift apparatus
CN110901530A (en) * 2019-12-10 2020-03-24 温州科丰汽车零部件有限公司 Vehicle reversing radar sensor
CN111547643A (en) * 2020-05-11 2020-08-18 高丽媛 Handling device for transporting household refrigerator
CN113200452A (en) * 2021-04-22 2021-08-03 神华铁路装备有限责任公司 Device for dismounting large parts of bogie
CN113200452B (en) * 2021-04-22 2023-11-17 神华铁路装备有限责任公司 Bogie large component dismounting device
KR20230015699A (en) * 2021-07-23 2023-01-31 (주)티이디 Apparatus for lifting
CN114835051A (en) * 2022-06-15 2022-08-02 藏存峰 Material loading attachment for building engineering
CN116533692A (en) * 2023-03-21 2023-08-04 广东科研世智能科技有限公司 Intelligent traction trolley for motor train unit
CN116533692B (en) * 2023-03-21 2023-10-03 广东科研世智能科技有限公司 Intelligent traction trolley for motor train unit

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