JPH0575676B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a hoisting and conveying device used for installation work of equipment that is large in weight and longitudinal dimension.

[Technical background of the invention and its problems] As is well known, when installing equipment that is large in weight and longitudinal dimension (hereinafter referred to as installed equipment), the work cannot be done because it exceeds the work range of a general-purpose mobile crane vehicle. In such cases, rolling and jacking up and down work may be considered. however,
Roller pulling work takes a long time, including setup, and requires a large number of people, which not only increases transportation costs, but also requires careful attention to work safety.
Further, for example, when transporting and installing precision installation equipment such as rotating electric machines and substation equipment in power generation plants, rolling work is avoided due to concerns about the reliability and safety of the work.

On the other hand, when installing equipment inside a building, an overhead crane or the like is usually used to unload, move, center, and install the equipment. However, in order to install an overhead crane in a building, it is necessary to increase the strength of the building to withstand a specified load, which has the disadvantage of making the building construction cost, including foundation work, very expensive. Ta.

Further, even if the work can be carried out using a large crane vehicle, there is a drawback that logistics costs including shipping costs are extremely high.

[Object of the Invention] The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a hoisting and transporting device that can reliably and safely transport and install equipment that is particularly large in weight and longitudinal dimension. It is.

[Summary of the Invention] The present invention is characterized in that a pair of movable carts are arranged facing each other, each of the carts is provided with a pair of columnar bodies each equipped with a rod that can be raised and lowered, and the rods of the opposing carts are connected to each other. A support body that supports the hanging beam at a predetermined time and supports the load of the hanging beam at a predetermined time is provided concentrically with the rod and threadedly engaged with the columnar body so as to be freely raised and lowered, and is transported by a conveying device such as a trailer. When installing equipment that is large in weight and longitudinal dimension, it is first lifted and transferred, and then transported to the installation site, the load is supported by a support instead of hydraulic pressure, to ensure safety during transport, and also to improve transport safety. The aim was to shorten the construction period, improve safety, reduce transportation costs, and make the structure of the building economically advantageous.

[Embodiment of the Invention] Hereinafter, an embodiment of the lifting conveyance device of the present invention will be described with reference to the drawings. In FIGS. 1, 2, and 3, the hoisting and conveying device 1 is equipped with a plurality of driving wheels, is movable, and has a pair of carts 2 arranged facing each other, and an upright structure on the top of each cart 2. It consists of a pair of columnar bodies 3 equipped with rods that are provided as a rod and can be raised and lowered by fluid pressure, and a pair of hanging beams 4 connected to and supported by the upper part of each rod facing each columnar body 3. The whole structure forms an inverted U-shaped truss structure. Note that this inverted U-shaped truss structure is reinforced with turnbuckles 5, 6, and 7 and a damper 8.

The trolley 2 has an underframe 10 provided with a hook hole 10a at its longitudinal end, is removably attached to the underframe 10, uses oil as a working fluid, and has a drive source such as an internal combustion engine. A power unit 11 and a plurality of motors are driven by the hydraulic pressure of the power unit 11 via a hydraulic motor 12 and directionally controlled via a power steering 13, and are attached to the underframe 10 via a hydraulic suspension 14. It is composed of driving wheels 15. Therefore, the trolley 2 follows the unevenness of the traveling road surface and is always maintained horizontally.

Note that the power unit 11 can be removed and placed alone or on another attached trolley (not shown) to generate hydraulic pressure.

The columnar body 3 has a guide groove 16 provided on its side surface engaged with a moving guide rail 17 provided along the longitudinal direction on the top surface of the underframe 10, so that the mounting position can be adjusted according to the dimensions of the equipment to be installed. A column 18 that is movable and can be fixed in the moved position with bolts, etc., a cylinder 19 installed inside this column 18 as shown in FIG. 4, and a cylinder 19 provided inside the upper part of the column 18. A cylindrical spacer 21 that engages with the trapezoidal screw 20 and moves up and down, and a hole 21 of the spacer 21 that is connected to the piston 19a of the cylinder 19.
It consists of a rod 22 guided by a, and a U-shaped ladder 23 which is provided at appropriate pitches on the side of the support column 18 and is used for ascending and descending the working vehicle. Thus, the support column 18 is accurately attached to the underframe 10 by the engagement of the above-mentioned moving guide rail 17 and the guide groove 16 on the lower side, but the hanging beam 18
It is necessary to adjust the distance between the centers of the upper part of the rod 20 in order to support the rod 20 on the upper part. Therefore, a connection part for an assembly turnbuckle (not shown) used for this adjustment is provided on the upper part of the support column 18.

Further, the lifting and lowering capacity of the cylinder 19 is greater than the conveyance capacity determined by the configuration (size, number, etc.) of the driving wheels 15. Furthermore, the upper part of the rod 22 is provided with a flange 22b, an upper shaft part 22c, and a tapered part 22d at the end, and the lower surface of the flange 22b abuts the upper surface of the spacer 21. This spacer 21 is
It is constructed to have the strength to support the weight of the installed equipment including the two hanging beams 4 in total.

On the other hand, a manual handle 23 formed from a ring and ribs of an appropriate diameter is attached to the upper part of the spacer 21.

The suspension beam 4 has holes 2 at both ends as shown in FIG.
5 is provided, and the upper part of the rod 22 is inserted into this hole 25 and supported. Here, the hole 25 includes a flange 22b provided on the upper part of the rod 22 and an upper shaft portion 2.
A coating layer 26 of the above-mentioned non-ferrous metal material is provided on the inner surface of the bearing member or hole 22 which is fitted with the rod 20 and is made of a non-ferrous metal material different from that of the rod 20.
Therefore, damage to the rod 22 due to galling due to abnormal contact between the rod 22 and the hanging beam 4 is prevented, and attachment and detachment during repeated use is facilitated.

At both ends of this suspension beam 4, connecting portions 27a,
27b is provided to connect the opposing suspension beams 4, 4 with turnbuckles 5, 6, and 7. Further, a connecting portion 28 is provided on the lower surface of the hanging beam 4, and a connecting portion 28 is provided on one side (inner side) of the support column 18.
A damper 8 is connected between the damper 9 and the damper 9. This damper 8 has a structure that has the characteristics of a tension spring and can also adjust the installation length, and connects both of them auxiliarily, and has a truss structure forming an inverted U shape together with the turnbuckles 5, 6, and 7 described above. Reinforce. Here, the connecting part 29 is provided with a protruding part 30 along the vertical direction of the column 18 so that the damper 8 is connected according to the height dimension of the installed equipment, and holes are formed in the protruding part 30 at appropriate pitches. 30a, and insert the damper 8 into this hole 30a.
It is constructed so that one side of the two is connected.

On the other hand, a pair of carts 2, 2 arranged opposite to each other
are connected by a pair of connecting members 32, 32, as shown in FIGS. 5 and 6, in order to accurately maintain the distance between both carts 2, 2 and improve the overall rigidity of both carts. It is composed of This connecting member 3
2, a pin 33a is attached to the connecting portion 33 provided on the underframe 10.
The connecting portion 34 is rotatably connected to the underframe 10 on the opposite side by rotating at a predetermined time.
When unconnected, they are held on the inner side of each underframe 10 by appropriate fixing members (not shown) as shown by the two-dot chain line in FIG. In addition, this connecting member 32 can also be used as a resting stand for the installed equipment (a stand that temporarily supports the installed equipment when changing the setup) when connected to both the underframes 10, 10.

Next, the operation of the above embodiment will be explained. First, the lifting and conveying device 1 is assembled on site (near the installation location of the installed equipment 40) as shown in FIG. 7a.
During this assembly, the trailer 41 transporting the installed equipment 40 separates the opposing carts 2, 2 so that it can enter inside, and the hanging beam 4,
The columnar bodies 3, 3 are attached to the trolley 2 so that the interval of 4 is the interval between the hanging fittings 42 of the installed equipment 40.
Further, a wire rope 4 of a predetermined length is attached to the hanging beam 4.
Multiply by 3 (shown in Figure 1). Note that the connecting member 32 is removed so as not to prevent the trailer 41 from entering.

As shown in Figure b, the trailer 41 carrying the installed equipment 40 is entered inside the lifting and conveying device 1 assembled as described above. 41 is stopped. After that, attach the wire rope 43 to the hanging fitting 4.
2, actuate the cylinder 19, lift the installed equipment 40 slightly above the trailer 41 to maintain a horizontal state, and move the trailer 41 to another location, as shown in FIG. Also, if necessary, connect the connecting member 3.
2 and the damper 8 are connected and reinforced. After that, rotate the manual handle 23 to move the spacer 21 to the support column 18.
The cylinder 19 is raised to a preset allowable minimum height, and the hydraulic pressure of the cylinder 19 is released. As a result, the rod 22 is lowered and the installed equipment 40 is also lowered, but the flange 22b of the rod 22 is attached to the spacer 21.
The descent stops when it comes into contact with the The height of the installed equipment 40 at this time is the above-mentioned minimum allowable height,
The center of gravity is set to be as low as possible to ensure reliable transportation. In this way, the transported device 40 is transported to the installation location while being held horizontally. Then, the installation centering adjustment of the installed equipment 40 is performed, and the hoisting and conveying device is fixed between it and the floor surface.
Thereafter, the installed equipment 40 is slightly raised by the cylinder 19, and the manual handle 23 is rotated to lower the spacer 21. After that, the hydraulic pressure of the cylinder 19 is gradually lowered to gently lower the installed equipment 40 to the installation part, and after tightening the anchor bolts etc. to fix the installed equipment 40, the wire rope 43 is removed and the equipment 40 is lifted up. Move the transport device 1 to another location.

In addition, in the case of installed equipment with large height dimensions, please refer to No. 8.
This will be explained with reference to the figures. Note that in the figure, a shows a front view, and b shows a side view. First, the connecting member 32 and the turnbuckle 7 are connected, the auxiliary suspension beam 45 is attached to the suspension beam 4, and the auxiliary suspension beam 4
A wire rope 46 of a predetermined length is hung on.

Next, the wire rope 46 is hung around the hanging fitting 48 of the installed equipment 47 transported from the trailer 41 in the above-described order, and the equipment is transported to the installation site and installed.

In addition, when the equipment to be installed 40 is not installed directly but is temporarily placed at a location other than the installation location, the trailer 4
It can also be used for transshipment from 1, subsequent transportation to the installation site, and lifting and lowering, and can also be used for tasks such as standing up and falling over.

By configuring as above, trailer 4
The installed equipment 40 or 47 transported in step 1 can be transshipped within the lifting transport device 1, and when the transshipped installed equipment 40 or 47 is transported to the installation site, the installed equipment 40 or 47 including the suspension beam 4 Since the spacer 21 supports the weight of the object, the object can be transported safely even if some problem occurs in the hydraulic system. In addition, overall workability is greatly improved and safety is also improved. In addition, since it can be disassembled and transported, it is easy to transport when used repeatedly, and furthermore, since it can be moved after assembly, assembly and disassembly are easy without restrictions on the assembly location. In addition, the ladder 23 of the columnar body 3 facilitates high-place work such as attaching and detaching the hanging beam 4, handling the wire rope 43 or 46, connecting the turnbuckles 5, 6, and 7, and adjusting the tension.
And safety can be improved.

It should be noted that the present invention is not limited to the embodiments described above, and as shown in FIG. The inner circumferential surface of the spacer 51 may be brought into contact with the outer circumferential surface of the member 50 for guidance. In this case as well, by rotating the manual handle 23 in the same way as above, the spacer 51 is
goes up and down. Further, as shown in FIGS. 10 and 11, a guide member 52 for guiding the vertical movement of the rod 22 is fixed to the support column 18 at the lower part thereof, and a spacer 53 is attached to the outer peripheral surface of the guide member 52. The peripheral surfaces are brought into contact and guided, and a plurality of racks 54 are provided on the approximate surfaces thereof. The column 18 is provided with a plurality of pinions (however, only one is shown in FIG. 10) 55 that are rotated by a manual handle (not shown) and rotate in conjunction with each other, and the spacer 53 is raised and lowered by this pinion 55. let In this case, a stopper (not shown) is provided in order to prevent the spacer 53 from falling (including when the spacer 53 is under its own weight and when the installed equipment is being lifted).

Alternatively, instead of running on its own, it may be towed by another motor vehicle.

[Effects of the Invention] Since the present invention is configured as described above,
It has the following effects.

(1) Equipment with large weights and longitudinal dimensions can be carried into narrow spaces where large cranes cannot be used, and installation or temporary placement work can be carried out, simplifying and simplifying the work by eliminating the need for towing work. At the same time, it is possible to improve safety during transportation and shorten the construction period.

(2) Since it can run on its own or be towed by an external force, it can be used to install a large number of devices that are heavy and have large longitudinal dimensions, making installation work efficient and economically advantageous.

(3) There is no need for an overhead crane inside the building, making it possible to significantly reduce building construction costs.

(4) Since it can be transported in a disassembled state to the vicinity of the installation site, transport is easier and more economical than using a large crane, etc., reducing transportation costs, construction costs, and construction time.

(5) When transporting the equipment to be installed, the hanging beam is supported via a support that is screwed into the columnar body, so even if some kind of malfunction occurs in the hydraulic system, the equipment can be transported safely. , improve safety.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of an embodiment of the lifting conveyance device of the present invention, FIG. 2 is a side view as seen in the direction of arrow A in FIG. 1, and FIG. A plan view taken in the direction of the arrow B, FIG. 4 is a sectional view taken along line A-A in FIG. 2 and seen in the direction of the arrow, and FIG. 5 is a cross-sectional view taken along line B-B in FIG. Partial front view looking in the direction,
Figure 6 is a plan view seen in the direction of arrow A in Figure 5;
Figure 8 is an explanatory diagram showing the operation of one embodiment of the present invention.
The figures are an explanatory diagram showing a different effect from that in FIG. 7 of an embodiment of the present invention, FIG. 9 is a partial sectional view showing a structure different from that in FIG.
The figure is a partial sectional view showing a configuration of a spacer according to an embodiment of the present invention, which is different from that in FIGS. 4 and 9, and FIG. 11 is a plan view seen in the direction of arrow A in FIG. 10. DESCRIPTION OF SYMBOLS 1... Lifting conveyance device, 2... Dolly, 3... Column body, 4... Hanging beam, 15... Driving wheel, 21, 5
1,53... Spacer, 22... Rod, 40,
47...Equipment to be installed, 41...Trailer.

Claims (1)

[Scope of Claims] 1. A pair of movable carts are arranged facing each other, each of these carts is provided with a pair of columnar bodies each equipped with a rod that can be raised and lowered, and each of the rods of the opposing cart is A lifting conveyance characterized in that a support body that supports a hanging beam through the suspension beam and supports the load of the hanging beam at a predetermined time is provided concentrically with the rod and threadedly engaged with the columnar body so as to be movable up and down. Device. 2. The hoisting and conveying device according to claim 1, wherein the columnar body is provided movably in the longitudinal direction of the truck. 3. The lifting conveyance device according to claim 1, wherein the longitudinal end surfaces of the opposing carts can be connected by a connecting member.