JP2636190B2 - Pin lock type heavy lifting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pin-lock type heavy lifting device for pushing up and pushing down a super-heavy object such as an integral push-up of a building in construction work.

[0002]

2. Description of the Related Art The present applicant has already made a plurality of proposals on such a push-up device for a building frame (for example, Japanese Patent Application No. 5-259756).

[0003]

In the prior art, the disadvantages of using a crane are: (1) It depends on the weather. (2) Blocking requires a larger crane. (3) There is a problem with construction on a small site. (4) Crane capacity is required according to the height of the building. (5) There is a safety problem due to the crane's swiveling, wake-up operation, and load swing due to wind. (6) Large cranes are expensive to purchase and cannot be expected to operate at a high rate, so there is a problem in terms of cost. (7) When dismantling buildings such as buildings, there are cases where the crane cannot be used due to conditions around the neighboring buildings.

[0004] It is an object of the present invention to provide a pin lock type heavy object lifting device with improved workability, safety and versatility.

[0005]

According to the present invention, there are provided a plurality of pairs of pedestals in which lock holes are formed at predetermined pitches in opposed concave portions, and a temporary support provided on a top surface of the pedestal. A beam and a mechanism for moving the temporary receiving beam, an upper load receiving beam, a lower load receiving beam, and one or a plurality of main jacks connecting these two load receiving beams, which are vertically engaged with the recess of the gantry; A temporary lock receiving spacer provided on the top surface of the upper load receiving beam, a pin lock mechanism including a lock pin for selectively locking the load receiving beams into the lock holes, and the main jack. A hydraulic device to be driven and a control device to control the hydraulic device are provided.

Further, according to the present invention, a pair of pedestals having a pair of lock holes perforated at a predetermined pitch at both ends which are not opposed to each other, a temporary support beam provided on a top surface of the pedestal, and A moving mechanism of a temporary receiving beam, an upper load receiving beam, a lower load receiving beam, and one or a plurality of main jacks connecting these two load receiving beams, the upper load receiving beam and the lower load receiving beam being engaged with both ends of the gantry in a vertically movable manner; Driving the main jack, a spacer for inserting a temporary receiving beam disposed on the top surface of the receiving beam, a pin lock mechanism having a lock pin for selectively locking the load receiving beams in the lock holes, A hydraulic device and a control device for controlling the hydraulic device are provided.

[0007]

In the pin lock type heavy object lifting device constructed as described above, for example, in lifting, assembling a heavy object on the spacer, extending the main jack, pushing up the upper load receiving beam by one pitch of the lock hole, The lock pin of the upper load receiving beam protrudes and engages with the lock pin hole to lock the upper load receiving beam to the gantry, then unlocks the lower load receiving beam, contracts the main jack, and lowers the lower load receiving beam by one pitch. When the main jack has been pushed up for all the strokes by repeating the same procedure, the temporary receiving beam is inserted between the spacers to fix the heavy object.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an example of a pin lock type heavy object lifting device according to the present invention, with a part of a loading platform omitted.

1 to 4, two pairs (two pairs in the illustrated example) of a pair of U-shaped cross sections 1a and 1b are erected so as to face the recess 2. A plurality of lock holes 3 are bored facing each other at a predetermined pitch in the recesses 2, 2 of the pair of gantry 1 a, 1 b, and a bracket 4 is drilled in the upper end side surface of one of the gantry 1 a. Have been. On the upper surface of the bracket 4, a temporary receiving beam 6 is slidably provided on a side of the other gantry 1 b by a moving mechanism 10 via a pair of guide rails 5.

Referring also to FIG. 5, the moving mechanism 10
It comprises a known rack and pinion mechanism 11 provided between the upper load receiving beam 7 and a shaft 12 and a geared motor 13 for driving the rack of the mechanism 11.

On the other hand, an upper load receiving beam 7 and a lower load receiving beam 8 which can move up and down are provided in the concave portion 2 of the gantry 1. The beams 7 and 8 are connected by a plurality of (two in the illustrated example) main jacks 9 and connected to a hydraulic unit (not shown). Each of the beams 7, 8 has a lock pin 21a, 21b which engages with the lock hole 3 and a pin lock mechanism 20 (FIG. 6).
The main jack 9
In addition, each is connected to a control device (not shown). A pair of spacers S whose height is slightly higher than that of the temporary receiving beam 6 is placed on the top surface of the upper load receiving beam 7.

Referring to FIG. 6, taking the upper load receiving beam 7 as an example, the pin lock mechanism 20 includes lock pins 21a and 21a.
a, and V-shaped links 23, 2 connecting the middle of the V-shaped links 22, 22 to each other.
3 and a hydraulic cylinder 2 interposed between connecting points of the links
It consists of four. When the hydraulic cylinder 24 is extended, the lock pins 21a, 21a are retracted, and when the hydraulic cylinder 24 is contracted, the lock pins 21a, 21a project as shown in FIG.

Next, referring to FIGS. 8 to 10, the manner in which a heavy pillar is pushed up will be described. When pushing up,
As shown in FIG. 1 to FIG.
A column C having beams B, B is assembled on the spacers SS.

First, the selection of the interlocking operation is confirmed (step S1). After the hydraulic unit is started, idling is performed, and the hydraulic unit and the cylinder are visually checked (step S2). Next, the main jack 9 is slightly extended to check the hydraulic pressure. That is, it is confirmed that the load has moved from the upper lock pin 21a to the lower lock pin 21b (step S3). Next, the upper lock pin 21a is pulled out from the lock hole 3 and detected by a limit switch (not shown) (step S4).

Then, the main jack 9 is extended to check the hydraulic pressure, and the tuning level of a plurality (four in the illustrated example) of the main jacks 9 is detected by a stroke sensor (not shown) (step S5). Next, it is determined whether or not the tuning level is within an allowable range (step S6). If no,
That is, when a large stroke difference occurs between the other frames, that is, when there is a stroke difference larger than an allowable value between the frames 1a and 1b, the leading main jack 9 is moved.
Is temporarily stopped, and when the delayed main jack 9 catches up, the operation of the preceding main jack 9 is restarted (step S7), the process returns to step S5, and if YES,
The extension stroke end of the main jack 9 is detected by a pressure switch (not shown) (step S8).

Then, the upper lock pin 21a is inserted into the lock hole 3, and the insertion is detected by the limit switch (step S9). Next, the main jack 9 is slightly contracted and extended to check the hydraulic pressure. That is, it is confirmed that the load is moving from the lower lock pin 21b to the upper lock pin 21a (step S10). Then, the lower lock pin 21b is pulled out from the lock hole 3 and detected by a limit switch (not shown) (step S11).

Next, the main jack 9 is contracted (step S12), and the contraction stroke end of the main jack 9 is detected by the pressure switch (step S1).
3). Therefore, the lower lock pin 21b is inserted into the lock hole 3, and the insertion is detected by the limit switch (step S14). Hereinafter, it is determined whether or not the repetition of steps S3 to S14 has been completed (step S14).
15). In the case of NO, the process returns to step S3. If the result is YES, the main jack 9 is extended to check the hydraulic pressure (step S16), and thereafter steps S17 to S21 similar to steps S4 to S8 are executed. Next, the temporary receiving beam 6 is inserted between the spacers S, and the insertion is detected by a limit switch (not shown) (step S22 and FIGS. 9 and 10).

Therefore, the temporary receiving beam 6 is manually stopped by an operator (step S23), and the gantry 1a, 1b
Level is checked and adjusted manually (step S2
4). Next, the main jack 9 is contracted, the upper lock pin 21a is inserted into the lock hole 3, and the insertion is confirmed by the limit switch (step S25). Next, the main jack 9 is slightly extended, and the self-weight of the temporary receiving beam 6 is received by the upper lock pin 21a (step S26). Then, the lower lock pin 21b is pulled out and checked with the limit switch (step S27). So, the main jack 9
To check the hydraulic pressure, detect the tuning level of the main jack 9 with a stroke sensor, perform cooperative operation, and detect the stroke end with a pressure switch (step S28). Is lowered to the bottom (step S29), and the processing ends.

FIGS. 11 to 13 show the manner in which the beams B between the columns C are pushed up by the pair of mounts 1a and 1b.

FIG. 14 shows another embodiment of the present invention. This apparatus comprises a pair of gantry 1A having a rectangular cross-section with long sides facing each other and lock holes 3 formed in both short sides, a temporary receiving beam 6A disposed on the top of the gantry 1A, and a moving mechanism 10A thereof. (FIG. 16), upper load receiving beam 7A and lower load receiving beam 8A, both sides of which are engaged with both short sides of gantry 1A, 1A in a vertically movable manner.
And a main jack 9A connecting the beams 7A and 8A,
It comprises a spacer SA disposed on the top surface of the upper load receiving beam 7A, and a pin lock mechanism 20A (FIG. 17) provided with a lock pin 21A for selectively locking both beams 7A, 8A in the lock holes 3. ing.

Referring to FIG. 15, the gantry 1A has
A through-hole 1C for passing A is formed, and the beam B is supported thereon by passing the temporary receiving beam 6B through the through-hole 1C of the pair of gantry 1A.

In FIG. 16, the moving mechanism 10A is composed of a hydraulic cylinder 35 and a connecting link 36 bent in the shape of a "<", and an intermediate portion 36a of the connecting link 36 is mounted on a side surface of the gantry 1A. One end 36b is pivotally attached to the member 37, one end 36b is pivotally attached to the end 32a of the temporary receiving beam 6A, and the other end 36c of the connecting link 36 is pivotally attached to the rod end of the hydraulic cylinder 35. In addition, the hydraulic cylinder 35 is pivotally attached to a support member 38 attached to the side surface of the cylinder-side f mount 1A of the hydraulic cylinder 35.

With this configuration, the temporary receiving beam 6A is moved horizontally by expanding and contracting the hydraulic cylinder 35, and the beam B of the building is supported by the through holes 1C provided in the pair of gantry 1A.

In FIG. 17, the pin lock mechanism 20A
Is composed of a link plate 43 and a hydraulic cylinder 44. One end 43a of the link plate 43 is pivotally connected to the receiving beams 7A and 8A, and the other end 43b is pivotally connected to the end (the right end in the figure) of the lock pin 21A. . The cylinder side of the hydraulic cylinder 44 is pivotally connected to the receiving beams 7A and 8A, and the rod side is pivotally connected to the link plate 42. With this configuration, the lock pin 21A can be inserted into or pulled out of the lock hole 3 by expanding and contracting the hydraulic cylinder 44, whereby the upper and lower receiving beams 7A and 8A are fixed to the gantry 1A, respectively. A large load acting on the receiving beam 6A can be supported, and its fixing is released.

In this embodiment, a heavy object can be pushed up in substantially the same manner as in the previous embodiment.

[0027]

Since the present invention is configured as described above, it has the following effects.

In terms of structure, (1) By using a plurality of the devices, a pushing force of a super heavy object can be obtained. (2) Push-up and push-down can be easily switched to be used for both up-and-down use, and operations for depositing a skeleton or the like on a temporary support beam can be easily performed.

Regarding the workability: (3) Since the position of the lock pin is structurally determined, no special level adjustment is required for each stroke pitch. (4) By operating the main jack until the stroke end, the insertion position of the lock pin can be reliably and automatically determined. (5) By appropriately designing the height of the gantry, a necessary push-up height can be secured. (6) By appropriately designing the expansion / contraction speed of the main jack, a safe lifting / lowering speed can be obtained.

Regarding the operability, (7) a central operation panel and a position sensor are provided so that the operation can be fully automated, and the operation sequence can be displayed and the operation can be performed manually. (8) By controlling the discharge amount of the hydraulic unit of the main jack, the expansion / contraction speed of the main jack can be kept constant, and level adjustment between a plurality of devices can be made unnecessary. (9) Since the position of the lock pin is determined structurally, high levelness at the lock position can be ensured, and level adjustment operation is not required.

Regarding versatility and diversion, (10) By appropriately arranging a plurality of devices, it is possible to cope with various shapes of buildings, and it is easy to divert to various works and improve the operation rate. In addition, the usage loss can be kept low. (11) Since it has a descent function, it can be used for dismantling buildings and the like.

Regarding safety (12) Since the pin lock mechanism mechanically supports the upper and lower load receiving beams even during ascent and descent, it is higher than other types (screw screw type, tension rod type, etc.). Security can be obtained. (13) The pin lock mechanism and the bed structure do not adversely affect the building even when a pulling force is generated due to an earthquake or a wind load.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a side view of FIG. 2;

FIG. 4 is a sectional view taken along the line AA of FIG. 2;

FIG. 5 is a top view of FIG. 2;

FIG. 6 is a front view showing a pin lock mechanism.

FIG. 7 is a view showing a state in which the lock pin of FIG. 6 is projected.

FIG. 8 is a control flowchart.

FIG. 9 is a front view showing a state at the end of pushing up the column by one stroke.

FIG. 10 is a side view of FIG. 9;

FIG. 11 is a front view showing a setting state of a beam between columns.

FIG. 12 is a side view of FIG. 11;

FIG. 13 is a sectional view taken along the line A in FIG. 11;

FIG. 14 is a perspective view showing another embodiment of the present invention.

FIG. 15 is a perspective view showing a state in which a beam is supported by the apparatus of FIG. 14;

FIG. 16 is a front view showing a moving mechanism.

FIG. 17 is a side view showing a pin lock mechanism.

[Explanation of symbols]

 B ... Beam C ... Column S, SA ... Spacer 1a, 1b, 1A ... Stand 1C ... Through hole 2 ... Depression 3 ... Lock hole 4 ... Bracket 5. ..Guide rails 6, 6A: Temporary receiving beam 7, 7A: Upper load receiving beam 8, 8A: Lower load receiving beam 9, 9A: Main jack 10, 10A: Moving mechanism 11 ... Rack and pinion mechanism 12 ... Shaft 13 ... Geared motor 20, 20A ... Pin lock mechanism 21a, 21b, 21A ... Lock pin 22, 23 ... V-shaped link 24 ...・ Hydraulic cylinder 35 ・ ・ ・ Hydraulic cylinder 36 ・ ・ ・ Linking link 37 ・ ・ ・ Support member 43 ・ ・ ・ Link plate 44 ・ ・ ・ Hydraulic cylinder

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Ryo Mizutani 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Takezo Miyamoto 1-2-7 Moto-Akasaka, Minato-ku, Tokyo No. Kashima Construction Co., Ltd. (72) Inventor Kenji Kikuchi 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Shuji Hoshino 3-1-15-1 Toyosu, Koto-ku, Tokyo Ishikawa Toshima Takashima Industrial Co., Ltd. (72) Inventor Toshitaka Ohno 3-1-1-15 Toyosu, Koto-ku, Tokyo Ishikawa Shima-Harima Heavy Industries Co., Ltd. Tojin Technical Center (72) Inventor Haruhisa Yamagishi Koto-ku, Tokyo 3-1-1-15 Toyosu Ishikawa Shima-Harima Heavy Industries, Ltd.In the Tonii Technical Center (72) Inventor Kunihiko Fukae Toyosu Toyosu, Koto-ku, Tokyo Ichikawajima-Harima Heavy Industries Co., Ltd. Tojin Technical Center (72) Inventor Masayoshi Tanaka 1-1-1 Kanda Ogawamachi, Chiyoda-ku, Tokyo (Yamajin Building) Ishikawajima Transport Co., Ltd. (72) Inventor Shigeru Okano 1-1-1 Kanda Ogawamachi, Chiyoda-ku, Tokyo (Yamajin Building) Inside Ishikawajima Transport Co., Ltd. (56) References JP-A-48-65653 (JP, A) JP-A-49-67348 (JP, A) JP-A-49-55052 (JP, A) Japanese Utility Model Laid-Open No. 49-49671 (JP, U)

Claims (2)

(57) [Claims] A plurality of pairs of pedestals each having a pair of opposing concave portions having lock holes formed at a predetermined pitch, a temporary receiving beam disposed on a top surface of the pedestal, and a moving mechanism of the temporary receiving beams. An upper load receiving beam, a lower load receiving beam, and one or a plurality of main jacks for connecting the two load receiving beams, the upper load receiving beam and the lower load receiving beam being engaged with the concave portion of the gantry, and disposed on a top surface of the upper load receiving beam. A spacer for inserting the temporary receiving beam, a pin lock mechanism having a lock pin for selectively locking both load receiving beams into the lock holes, a hydraulic device for driving the main jack, and the hydraulic device. A pin-lock type heavy object lifting device comprising a control device for controlling. 2. A pair of pedestals in which lock holes are formed at a predetermined pitch at both ends which are not opposed to each other, a temporary beam disposed on a top surface of the frame, and a mechanism for moving the temporary beam. An upper load receiving beam, a lower load receiving beam and one or a plurality of main jacks connecting these two load receiving beams to be vertically movable at both ends of the gantry; and a top surface of the upper load receiving beam. A spacer for inserting a temporary receiving beam disposed therein, a pin lock mechanism including a lock pin for selectively locking the load receiving beams in the lock holes, a hydraulic device for driving the main jack, A pin-lock type heavy object lifting device comprising a control device for controlling the device.