JPH0221510Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a climbing jack system using a lifting device combined with a hydraulic cylinder.

[Conventional technology]

There are various types of conventional lifting equipment, such as truck cranes, gate cranes, bridge cranes, and overhead cranes, but their usage is limited to some extent depending on the object to be lifted. is normal.

[Problem that the invention attempts to solve]

However, while conventional cranes are excellent as specialized machines for certain objects, they generally tend to be unsatisfactory in terms of versatility for handling a wide variety of objects. Seem. In addition, as the size and weight of cargo increases year by year, there is a limit to the size of lifting machines that can handle this. The current situation is that it is becoming increasingly difficult to transport and assemble the products themselves on-site.

[Means for solving problems]

This idea was devised by focusing on the above-mentioned problem, and a support unit is formed by stacking a pair of posts that stand up at a predetermined distance, and a rail unit is added to form a guide rail. A lifting device is attached to each of the pair of posts, in which a lifting unit is assembled, which has upper and lower grip jacks that are firmly fixed and fit into the locking tooth grooves of the rail unit, and a climbing jack that moves up and down. And,
These problems have been solved by providing a climbing jack system in which a pair of lifting arms are mounted on both lifting units, and a length-adjustable hanging beam is constructed.

[Effect]

Since the configuration described above can be used, the first rail unit is first fixed to the first pair of first support units that are erected, the lifting unit is assembled, and the lifting beam is erected. Raise it to the upper end of the first rail unit by the operation of the formula, stack the second support unit on the first support unit using the lifting arm, and stack the second rail unit on the first rail unit. Add pieces and secure to the required support unit.

Thereafter, similar steps are repeated to stack the support units and connect the rail units to form a desired post and guide rail independently.

It goes without saying that appropriate measures should be taken to stabilize the post, such as by using a tiger wire, depending on the height of the post, depending on the situation and the occasion.

〔Example〕

An embodiment of this invention will be described below based on the drawings.

First, I will explain the configuration.

This climbing jack system is mainly composed of a lifting device 1, an attached frame 2, and a hanging beam 3.

Then, the lifting device 1, as shown in FIG.
It consists of a guide rail 10, a lifting unit 11 in which an upper climbing unit (hereinafter referred to as "upper unit") 12 and a lower climbing unit (hereinafter referred to as "lower unit") 13 are combined, and a jack operating means 14.

The guide rail 10 has a convex cross section with a mounting portion 10t protruding in the longitudinal direction at the center of the rear surface, and has a required number of locking tooth grooves 10k with sloped upper sides carved at equal intervals corresponding to both sides. Fixed length rail unit 1
0U are connected in the longitudinal direction. Although there are various types of connection means, in this example, as shown in FIG. 2, a cubic connection hole 10a is carved in the top surface of the main body 10H of the rail unit 10U, and a notch is formed in the rear surface of the mounting portion 10t from the top. connecting part 10r
On the other hand, a connecting piece 10h that fits into the connecting hole 10a and a connector 10s that comes into contact with the rear surface of the connecting part 10r are respectively provided protrudingly on the bottom surface,
After connecting these, the bolts 15 are sunk into the bolt head holes 10b drilled in the front surface of the rail unit 10U, and the connecting piece 10h, the mounting part 10t, and the connector 1 are assembled.
Bolt holes 10b' and 10 drilled at 0s, respectively
b'', 10b and tighten the nut 16 on the rear surface of the connector 10s to connect the rail unit 10U.

The upper unit 12 has a pair of upper grip jacks 12J disposed at symmetrical positions with the guide rail 10 as the center on the upper surface of the upper jack holder 12D, which has a substantially concave cross section and slides through the guide rail 10 through a central recess 12h. It was established.
The upper grip jack 12J is connected to the grip guide 12 fixed to the jack holder 12D.
a, a grip 12g having two locking teeth 12k that are guided by the grip and slide laterally to engage with the locking tooth grooves 10k of the guide rail 10, and a grip 12g that passes through the grip guide 12a. It consists of a hydraulic cylinder 12c installed on a jack cradle 12D so as to operate as shown in FIG.

Further, a pair of lifting guides 12s are attached to the recessed portion 12h of the jack holder 12D,
It slides in contact with the rear surface of the main body 10H of the guide rail 10 and both sides of the mounting portion 10t, and maintains the posture of the upper unit 12 when it is raised or lowered. (See FIG. 3) A hanging hook 12f for supporting the hanging element 17 of the object W is attached to the center of the front surface of the pedestal 12D.

The lower unit 13 has a lower jack holder 13D.
A pair of lower grip jacks 13J are disposed on the lower surface at symmetrical positions with respect to the guide rail 10, and a pair of climbing jacks 13C are disposed at both ends of the upper surface.

Note that the lower jack pedestal 13D is similar to the pedestal 1.
2D, a pair of lifting guides 13s are attached to the recess 13h, and the lower grip jack 13J has two locking teeth 13k.
and a grip guide 13a.
and a hydraulic cylinder 13c.

Furthermore, the climbing jacket 13C is
Brackets 12b, 1 provided on the lower surface of the upper jack holder 12D and the upper surface of the upper jack holder 13D.
It consists of hydraulic cylinders 13S for lifting and lowering that are rotatably attached to the respective pedestals 12D and 13b.
This is to reduce or extend the 3D spacing.

As shown in the piping of the hydraulic system in FIG. 4, the jack operating means 14 is branched into three directions from an oil tank 14T installed on the ground surface G via a hydraulic pump 14P, and connected to solenoid valves 14a and 14b, respectively. ，
14c to each hydraulic cylinder 12c, 13c,
Hydraulic system piping 14h is led to 13S.
Note that 14r is a relief valve, and 14P is a hydraulic pressure gauge.

As shown in FIG. 5, the attached frame 2 consists of a post 20 assembled on a pedestal 21 fixed to the ground surface G by sequentially connecting and stacking support units 22 in a cubic shape.

The suspension beam 3 is movable by being installed on lifting devices 1, 1 assembled to guide rails 10, 10 fixed to the pair of posts 20, 20, and its length is adjustable. To, post 2
In order to assemble 0 by oneself, a pair of L-shaped lifting arms 31 are mounted to be used for lifting the support unit 22. In addition, the arm 3
1 is horizontally rotatable, has a hanging hook at its tip via a pulley, and performs a hoisting operation using a small winch (not shown) installed on the same arm 31.

In addition, the upper jack holder 12D of the hanging beam 3
As shown in FIG. 6, a connecting tool 32 whose inner and outer ends are bifurcated is used for the connection. The inner end portion 32n is bolted to the side surface of the outer end of the suspension beam 3 so as to be rotatable in the vertical direction, while the outer end portion 32g is placed on the pedestal 12D and held by two bolts. Fixed.

Next, the effect will be described.

Each jack 12J, 13J, 13C is operated by each hydraulic cylinder 12c, 13c, 13S in the hydraulic circuit automatically electrically controlling each electromagnetic valve 14a, 14b, 14c on and off. , reciprocate. (See FIG. 4) First, the lifting and lowering operations of the lifting device 1 will be explained with reference to FIG. 7.

In the case of raising, first, the lower unit 13 is fixed to the guide rail 10 by closing the lower grip jack 13J and engaging the locking tooth 13k of the grip 13g with the locking tooth groove 10k. Subsequently, the upper unit 12 is released from the guide rail 10 by an operation substantially opposite to that described above.

Next, the climbing jack 13C is extended to its maximum stroke by the lifting hydraulic cylinder 13S to raise the upper unit 12. Then, the upper grip jack 12J is closed to fix the upper unit 12 to the guide rail 10, and then the lower unit 13 is released from the guide rail 10.

Next, the lower unit 13 is raised by shortening the stroke of the climbing jack 13C, and when the minimum stroke is reached, the lower unit 13 is fixed to the guide rail 10 again.

In the manner described above, the upper and lower units 12 and 13 are raised along the guide rail 10 while repeating the so-called inchworm-type operation.

On the other hand, in the case of descending, the operation is reversed to that in the case of ascending.

By the way, the lifting work can be carried out by arbitrarily selecting a combination of posts 20 and hanging beams 3 depending on the size, shape, and weight of the object to be lifted.
In this embodiment, the case of the simplest gate-shaped gutter 4 will be explained based on FIGS. 5 and 8.

First, the low-level posts 20 are assembled and prepared. That is, after installing a pair of pedestals 21 on the ground surface G with a predetermined distance L, the hanging beam 3 is adjusted to a required length l corresponding to the distance L,
It is set between both pedestals 21, and both lifting arms 31 are raised up. Then, the first support units 22 are installed at predetermined locations on both pedestals 21 using the arms 31, and the suspension beams 3 are temporarily joined to each other.

Next, the first rail unit 10U is fixed to the column unit 22 using the arm 31, the lower unit 13 and the upper unit 12 assembled to the unit 22 are attached, and the upper jack holder 12D is attached. is set at a position that supports the end of the hanging beam 3, and both 12D,
3 are connected by the connecting tool 32, and then the above-mentioned temporary connection is released.

Next, the first climbing motion is started.
The jack operating means 14 is operated to raise the pair of left and right lifting units 11 in parallel while supporting the hanging beam 3, and when the top of the first support unit 22 reaches a predetermined position, the climbing operation is stopped. Then, the second support unit 22 is lifted by the lifting arm 31, and the first and second support units 22, 22 are overlapped and connected. Furthermore, the rail unit 10U is attached to the second support unit 22.
However, if necessary, a new rail unit 10U is added and fixed to the second support unit 22.

From now on, repeat the same procedure to install guide rail 1.
A post 20 equipped with 0 is erected, and if necessary,
The safety of the post 20 is ensured by stretching a wire or the like.

In addition, when attaching a beam such as the header beam 5 to the top of the posts 20, 20 after the self-standing is completed, as shown in FIG. The header beam 5 is set in advance and raised, and the lifting arm 31 is used to attach the header beam 5 to the top of the posts 20, 20, thereby completing the self-supporting assembly of the attached frame 2. Alternatively, depending on the case, the beam 5 may be divided and lifted, and when the suspension beam 3 reaches the top of the post 20, it may be assembled and attached.

Next, we will discuss the lifting work.

The suspension beam 3 is lowered to near the ground surface G by the lowering operations of the lifting units 11, 11, and the object to be lifted is held on the suspension beam 3 with a lifting tool.

Then, by the climbing operation of the lifting station units 11, 11, lifting work of the object is carried out via the hanging beam 3.

Furthermore, the direction in which the lifting unit 11 moves is not limited to just the vertical direction, but can also be moved in any linear path, such as horizontally or diagonally, depending on the mounting direction of the guide rail 10, as shown in FIG. The conveyed object W can be moved along the line. Further, as shown in the figure, an appropriate number of attached frames 2 are arranged according to the object W to form a gate-shaped frame 4, and a lifting device 1 is assembled to form a comprehensive lifting system. It is also possible.

[Effect of idea]

As explained above, this invention involves assembling a lifting unit that can be raised and lowered like an inchworm using a hydraulic cylinder onto a guide rail formed by connecting a rail unit with locking tooth grooves, and fixing the rail unit. The present invention provides a climbing jack system in which a post is constructed by stacking prop units, and lifting work is performed by a hanging beam on which a lifting arm is mounted, which is installed on a single lifting unit or a pair of lifting units. Therefore, the operation of the lifting unit is safer than that of a general lifting machine composed of a conventional rotating drum and wire, and the accuracy of the installation of the object can be improved by adjusting the stroke of the climbing jack. We can expect improvement.

In addition, compared to general lifting equipment, the manufacturing cost of the device itself is not only cheaper, but considering its versatility, it is also expected to have an economical effect in terms of saving large investments in various types of lifting equipment. obtain.

Furthermore, with regard to the trend toward larger lifting machines in response to larger objects, the device of this invention is advantageous in terms of wheel transport because it is easy to disassemble and pack. By arranging the lifting unit in an arbitrary manner, versatility can be significantly increased, and the equipment itself can be self-supporting and self-propelled when erecting and dismantling on-site, making it adaptable to each site. The performance has been significantly improved.

Furthermore, from another point of view, if the guide rail of this device is installed on the ground, the connecting device is modified, and the lifting beam is installed on the lifting station unit, the object can be transported while being lifted. It is possible. Therefore, this invention has the dual functions of a lifting machine and a wheel transport machine, and is useful in fields such as modular construction methods for plants, which are currently under development, and the production and assembly of large rigs for oil offshore trenches. It can be used extremely effectively.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the lifting device of this invention;
Figure 2 is a perspective view of the connecting structure of the rail unit;
Fig. 3 is a rear view showing how the upper and lower jack holders are assembled to the guide rail, Fig. 4 is a hydraulic system diagram of the jack operating means, and Fig. 5 is the relationship between the attached frame and the hanging beam. Explanatory front view showing the 6th
The figure shows the connecting part between the upper jack pedestal and the hanging beam, the figure is a side view, the figure is a plan view, and FIG. is a diagram when the lifting hydraulic cylinder is extended, the figure is also a diagram when it is contracted,
Figure 8 is a front view illustrating the assembly of the gate-shaped frame, and Figure 9 is an explanatory diagram showing how this invention is used. The figure is a perspective view of a guide rail installed diagonally using a gate-shaped frame consisting of three sets of large, medium and small. It is. 2... Attached frame, 3... Hanging beam, 10...
Guide rail, 10U...Rail unit, 10
t... Mounting part, 10k... Locking tooth groove, 11... Lifting unit, 12... Upper climbing unit, 12D... Upper jack pedestal, 12s... Lifting guide, 12h... Recess, 12g... Grip, 12k...locking teeth, 12a...grip guide, 12c...hydraulic cylinder, 13...lower climbing unit, 13D...lower jack cradle, 13s...lifting guide, 13h...recess, 1
3g...grip, 13k...locking tooth, 13a...
...Grip guide, 13c...Hydraulic cylinder, 13
S...Hydraulic cylinder for lifting, 20...Post, 2
DESCRIPTION OF SYMBOLS 1... Pedestal, 22... Support unit, 31... Lifting arm, 32... Connector.

Claims (1)

[Scope of utility model registration request] A pair of attached frames that form a post by sequentially stacking and connecting a required number of support units on a pedestal, and a required number of rail units are fixed to the support unit,
It also consists of a guide rail that is successively joined and connected, and upper and lower climbing units that are slidably inserted into the guide rail, and can be raised and lowered in an inchworm-like manner using the locking tooth grooves of the rail unit. a lifting unit, and an extendable and adjustable hanging beam whose both ends are supported by the lifting unit via connectors, and on which a pair of lifting arms are placed; , the mounting part of the rail unit is slidably held between a pair of lifting guides fixed in a recess cut out in the center of the back side of the jack holder, and
The front and rear surfaces of the main body of the rail unit are slidably held between the lifting guide and the inner front surface of the recess, and the locking tooth groove is reciprocated by a hydraulic cylinder and a grip guide installed in the jack holder. A climbing jack system characterized in that the upper and lower climbing units each having a grip that engages and holds a locking tooth are connected to each other by a hydraulic cylinder for lifting and lowering.