JPH0858586A - Bucket bearing truck with derailment prevention device - Google Patents

Abstract

PURPOSE: To provide bearing truck with a derailment prevention device which is not derailed easily when the bucket of a crane collides with the bucket bearing truck. CONSTITUTION: A bucket bearing truck is equipped with a derailment prevention device 10 provided in the outer bottom part of a truck part 10a and clamping two rails 1a, 1b on which a bucket bearing truck 10 travels by means of a plurality of arms 12, 13 and a derailment prevention device 11 prevents derailment of the bucket bearing truck 10 caused by lateral impact to the bucket bearing truck 10 by taking the rails as supports when the bucket is landed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bucket trolley equipped with a derailment prevention device, and more particularly to a concrete carrier which is conveyed from a batcher plant by a concrete porter which moves on a track composed of at least two rails. The present invention relates to a bucket trolley with a derailment prevention device that can move in orbit to temporarily receive and hold a bucket when it is loaded into a bucket of a tower crane that is fixed near the.

[0002]

2. Description of the Related Art FIG.
As shown in (1), a dedicated track facility 1 is prepared for the concrete transporting and placing process. This track facility 1 is basically constructed by laying two rails, and the track facility 1 used for such a purpose is usually called a bunker line.

A concrete porter 2 and a bucket carrier 3 are movably arranged on the bunker line 1. The concrete porter 2 loads concrete from a batcher plant 4 and supplies it to a bucket 6 of a tower crane 5.

When concrete is transferred from the concrete porter 2 to the bucket 6 of the tower type crane 5, the bucket 6 of the crane 5 is landed on the bucket carrier 3 waiting at a designated position on the bunker line 1. The bucket receiving cart 3 has a bucket 6 as shown in FIG.
Is provided with a rotary table, that is, a landing table 3a, which is directly provided with a U-shaped peripheral wall 3b in which an opening serving as a bucket receiving opening is formed on a side portion.

The landing table 3 of the bucket receiving cart 3
When the bucket 6 of the tower crane 5 is placed on a, the operator simultaneously lowers the bucket 6 while turning the crane 5 toward the bucket carrier 3. At this time, the bucket receiving cart 3 is on standby by rotating the floor landing table 3a so that the bucket receiving port faces the approaching direction of the bucket. The bucket 6 of the crane 5 was positioned directly above the table surface from the bucket receiving port of the landing table 3a of the bucket receiving trolley 3 and finally lowered onto the table surface.

In FIG. 3, reference numeral 7 indicates a drive vehicle for moving the bucket carrier 3 on the track 1. The drive vehicle 7 includes a traveling device that travels and brakes the bucket receiving cart 3 and a power supply device 7 that supplies power to each device.
a, a compressor 7b communicating with a pressurized air supply port 3c provided on the upper surface of the landing table 3a for supplying pressurized air to the bucket 6, and a distance detection device 7 for detecting a traveling distance
c, a control device 7d for controlling the operation of each device, and the like.

[0007]

However, when the bucket 6 of the crane 5 is placed on the bucket receiving trolley 3 as described above, the operator always accurately and accurately moves the bucket surface of the table 3 through the bucket receiving port of the landing table 3a of the bucket receiving trolley 3. Although it is attempted to position it right above, sometimes the bucket 6 collides with the side portion of the landing table 3a.

When the bucket 6 moves relatively fast, the impact on the floor landing table 3a is large, which may cause an accident such as derailment of the bucket carrier 3.
The object of the present invention is to solve the conventional problems, and when the bucket of the crane is placed on the landing table of the bucket carrier, even if the bucket collides with the bucket carrier, it is not easily derailed. Thus, it is to provide a bucket trolley provided with a derailment prevention device.

[0009]

The present invention is a bucket trolley with a derailment prevention device, and has the following constitution in order to solve the above-mentioned technical problems. That is, according to the present invention, when the concrete carried by the concrete porter 2 moving on the track 1 constituted by at least two rails 1a and 1b from the batcher plant 4 is transferred to the bucket 6 of the crane 5, the bucket 6 is loaded. In a bucket receiving trolley 10 that is movably installed on the track to temporarily receive and hold the rail, the rails 1a and 1b are clamped by a plurality of arms 12 and 13 provided on the outer bottom surface of the trolley portion 10a. Derailment prevention device 11
When the bucket is landed, the derailment prevention device 10 prevents the derailment due to an impact force from the side against the bucket carrier 3 with the rails 1a and 1b as a support (claim 1). Corresponding to).

Explaining these constituent elements in more detail, the derailment prevention device 11 is intended to prevent the derailment by using two rails 1a and 1b for the bucket carrier 10 to travel by itself. . That is, the bucket carrier 10 is provided with wheels, and the wheels are
It runs on a track 1 composed of book rails 1a and 1b.

The derailment prevention device 11 referred to here is provided on the outer bottom surface of the bogie portion 10a of the bucket receiving trolley 10 as a whole. This derailment prevention device 11 is specifically
Two rails 1 on which the wheels of the bucket carrier 10 roll
At least two arms 12 and 13 which respectively enter the lateral recesses of a and 1b and whose front ends engage with the head, and fluid pressure devices 14 and 15 which swing these arms 12 and 13.
A first clamp device 11a consisting of and a second rail 1c arranged between the two rolling rails 1a, 1b of the wheel, if there is one
And a clamp device 11b (corresponding to claim 2).

[0012]

Function: Bucket carrier 10 with derailment prevention device of the present invention
According to the above, when the bucket 6 of the tower crane 5 is placed on the bucket carrier 10 to transfer concrete from the concrete porter 2 to the bucket 6, the bucket carrier 10 is stopped at a proper position on the track 1. Then, the derailment prevention device 11 attached to the outer bottom surface portion of the bucket carrier 10 is operated.

The operation of the derailment prevention device 11 causes the plurality of arms 12 and 13 to swing so that the two rails 1a and 1b.
Are respectively clamped to counteract the impact force from the side against the bucket carrier 10 at the time of landing the bucket.

Further, this derailment prevention device 11 has two rails 1a and 1b on which wheels of the bucket carrier 10 roll.
The first clamp device 11a and another
When the book rail 1c exists, it can be configured with a second clamp device 11b that supports the rail 1c by using the rail 1c.

In this case, the two arms 12 and 13 constituting the first clamp device 11a are swung by the fluid pressure devices 14 and 15, respectively, and the tips thereof are provided with the two rails 1a and 1b. Of the bucket receiving carriage 10 while supporting the bucket receiving carriage 10 by engaging with the head of the bucket receiving carriage 10 while the second clamp device 11b grips the other rail 1c. It is possible to counter 10 against lateral impact forces.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A bucket carrier with a derailment prevention device according to the present invention will be described below in more detail with reference to the embodiments shown in the drawings. FIG. 1 schematically shows a derailment prevention device 11 installed on the outer side of the bottom of a bogie portion 10a of a bucket carrier 10 with a derailment prevention device according to an embodiment of the present invention.
In this embodiment, the main body of the bucket carrier other than the derailment prevention device 11 is the same as the conventional one shown in FIG. 3, and therefore its description is omitted.

Most of the elements constituting the derailment prevention device 11 are provided on the lower surface of the truck portion 10a of the bucket receiving truck 10. This derailment prevention device 11 is the first
The first clamp device 11a is provided with two arms 12 and 13. Each of the arms 12, 13 is pivotally attached at its base end (not shown) to the carriage 10a so as to be swingable in a direction orthogonal to the longitudinal direction of the two rails 1a, 1b constituting the bunker wire 1. The respective rocking motions of the arms 12 and 13 are performed by the hydraulic cylinder devices 14 and 15.

For example, in the case of one arm 12, the working end of the hydraulic cylinder device 14 is pivotally attached to its base end via a link device 16 and a connecting rod 17. Further, regarding the other arm 13, the hydraulic cylinder device 1
The working end of 5 is pivotally attached directly to its proximal end. As a result, the arms 12 and 13 are swung by the operation of the hydraulic cylinder devices 14 and 15, respectively, and the tips of the L-shaped arms enter the lateral recesses inside the rails 1a and 1b, respectively. The rail head from below.

In this manner, the two arms 12, 13 are swung by the hydraulic cylinder devices 14, 15, so that the L-shaped tips of the arms 12 and 13 enter the lateral recesses on the inside of the rails 1a and 1b to reach the head. Since the bucket 6 is provided with a resistance force against the lifting of both side portions of the bucket carrier 10 by engaging from the lower side, the bucket 6 is not supported by the bucket carrier 10.
It is possible to prevent derailment when the vehicle is collided from the side and is pushed down and a force is exerted.

In the bunker line 1, another rail 1c may be laid between the two rails 1a and 1b on which the bucket carrier 10 runs for various purposes. In such a case, it is desirable that the rail 1c is also used to support the bucket carrier 10. Therefore, the derailment prevention device 11 includes the second clamp device 11 that clamps the rail 1c in addition to the above-described first clamp device 11a.
It also has b.

The second clamp device 11b includes a pair of clamp arms 18a and 18b whose upper ends are pivotally attached to each other and supported by the carriage 10a. One end of an operating lever 19a is connected to the upper end of one clamp arm 18a, and one end of a subordinate lever 19b is pivotally attached to a substantially middle portion in the longitudinal direction of the operating lever 19a. The piston rod 20a of the hydraulic cylinder device 20 is pivotally attached to the other end of the operating lever 19a, and the other end of the dependent lever 19b is pivotally attached to the upper end of the other clamp arm 18b.

The tip ends of the pair of clamp arms 18a and 18b are formed in an L shape and face each other so that the lower side of the head of the rail can be gripped. As a result, the clamp arms 18a and 18b are swung by the actuation of the hydraulic cylinder device 20 via the actuating lever 19a and the dependent lever 19b, so that both tip ends grip or depart the head of the rail 1c. It will be opened and closed.

Therefore, when one rail 1c other than the rails 1a and 1b on which the bucket carrier 10 travels is laid at a predetermined position between them, the above-mentioned first clamp device 11a is used. By operating the second clamp device 11b in cooperation with each other, the bucket receiving cart 1
0 can be supported more strongly against the pushing force from the lateral direction, and as a result, the probability of derailment of the bucket carrier 10 due to the collision of the bucket 6 can be further reduced.

[0024]

As described above, according to the bucket carrier with the derailment prevention device of the present invention, when the bucket of the crane is placed on the landing table of the bucket carrier, the derailment preventer is operated to support the rail. Further, since the lateral impact force is counteracted, even if the bucket accidentally collides with the bucket receiving trolley, it is not easily derailed, and the safety and efficiency of the work can be secured.

[Brief description of drawings]

FIG. 1 is a structural explanatory view schematically showing a derailment prevention device installed on a lower surface of a bogie portion of a bucket carrier with a derailment prevention device according to an embodiment of the present invention.

FIG. 2 is a structural explanatory view schematically showing an entire concrete automatic supply system in which the bucket carrier with a derailment prevention device according to the present invention is used.

FIG. 3 is a configuration explanatory view showing a bucket receiving carriage which is on standby on a track and in which a landing table is in a rotation position in which a bucket receiving port is oriented in a direction perpendicular to the track.

[Explanation of symbols]

 1 track equipment (bunker line) 2 concrete porter 3 conventional bucket carrier 3a landing table 3b surrounding wall 3c pressurized air supply port 4 batcher plant 5 tower crane 6 bucket 7 drive vehicle 7a power supply device 7b compressor 7c distance detection device 7d Control device 10 Bucket receiving dolly with derailment prevention device 10a Bogie part 11 Derailment prevention device 11a First clamp device 11b Second clamp device 12 Arm 13 Arm 14 Hydraulic cylinder device 15 Hydraulic cylinder device 16 Link device 17 Connecting rod 18a Clamp Arm 18b Clamp arm 19a Actuating lever 19b Subordinate lever 20 Hydraulic cylinder device 20a Piston rod

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Susumu Tamaya Maeda Construction Industry Co., Ltd. 2-1026 Fujimi 2-chome, Chiyoda-ku, Tokyo

Claims (2)

[Claims] 1. When the concrete carried by a concrete porter moving on a track composed of at least two rails from a batcher plant is transferred to a bucket of a crane, the bucket is temporarily received and held. In a bucket receiving trolley installed movably on a track, the derailment prevention device is provided on the outer bottom surface of the trolley unit and clamps the rail with a plurality of arms. A bucket receiving trolley with a derailment prevention device for preventing derailment by an impact force from the side against the bucket receiving trolley using rails as a support. 2. The derailment prevention device enters into the side recesses of the two rails on which the wheels roll, and at least two arms whose front ends engage with the head, and a fluid for rocking these arms. A first clamping device consisting of a pressure device and another one arranged between the two rolling rails of the wheel.
The bucket support cart with the derailment prevention device according to claim 1, further comprising a second clamp device that grips a rail of the book when the rail exists.