JPH0397505A - Ready-mixed concrete charging machine - Google Patents

Abstract

PURPOSE:To enable ready mixed concrete accommodated in hopper to be discharged successively at an arbitrary amount from the discharge end of a screw conveyor by mounting a revolution mechanism, an elevating apparatus, hopper and screw conveyor on a self-running carriage. CONSTITUTION:When a running motor 13 is activated via an operation board, a discharge machine can move in front and he rear direction on rails R, R by a self-running carriage 10. The electrical driving source in this instance is supplied thereto via an appropriate trolley or moving cable. As the revolution motor 23 of a revolution mechanism 20 is activated and thus a pinion 23a me shed with a fixed toothed gear 21 is driven, a rotation member 22 rotates and then an elevating apparatus 30, hopper 40 and screw conveyor 50 mounted on the rotation member 22 rotate integrally. And, when a cylinder 33 is expand ed and contracted, a sliding bracket 35 comes up and down via a moving frame 32 and chains 34, 34, with the result that the hopper 40 and screw conveyor 50 can be set at an arbitrarily high position.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a ready-mixed concrete charging machine for charging ready-mixed concrete into formwork from a high position when manufacturing various large-sized secondary concrete products.

BACKGROUND ART When manufacturing a concrete secondary product with a high height, the overall height of the formwork is high and the concrete feeding position of the formwork is high, making it difficult to feed the fresh concrete.

In addition, the larger the secondary concrete product, the more
The number of manufacturing lofts is often small, and the formwork must be changed frequently.

Therefore, in factories manufacturing secondary concrete products,
There is a need for mechanical equipment that can efficiently feed fresh concrete into large formworks, but conventionally,
There is no known device that can be conveniently used for such purposes; the hopper containing the ready-mixed concrete is transported by a forklift, an overhead crane, a hoist, etc., and the bottom of the hopper is opened and closed manually to perform the loading of the ready-mixed concrete. This is what is currently being done.

The problem to be solved by the invention is that when using such conventional technology, two or more workers are required: a driver of a forklift, etc., and a worker who is in charge of discharging the ready-mixed concrete from the hopper. ,
The problem of poor work efficiency was unavoidable. Also,
A hopper simply has a discharge port with a simple opening/closing gate at the bottom, so it is difficult to continuously discharge a predetermined amount of fresh concrete, and it requires skill to operate. There was also the problem that the surrounding area was not in good condition.

Therefore, the purpose of this invention is to load a hopper with a screw conveyor on a self-propelled cart so that it can be rotated up and down, so that it can be easily operated by one worker, and it is possible to easily handle any amount of ready-mixed concrete. The object of the present invention is to provide a ready-mixed concrete charging machine capable of continuously discharging fresh concrete.

Means for Solving the Problems The structure of the present invention for achieving the object is a self-propelled cart, a turning mechanism loaded on the self-propelled cart, a lifting device mounted on the turning mechanism, and a lifting device. The gist of the system is to include a hopper that can be raised and lowered and a screw conveyor that is installed at the bottom of the hopper.

Note that the screw conveyor may be movable relative to the hopper, or a belt conveyor movable in the discharge direction of the screw conveyor may be attached below the screw conveyor.

Effect When using such a configuration, the whole is movable via a self-propelled cart, and the hopper and screw conveyor can be horizontally rotated and vertically lifted and lowered via the rotating mechanism and the lifting device. By appropriately operating the truck, the turning mechanism, and the lifting device, it is possible to arbitrarily position the discharge end of the screw conveyor. In addition, the screw conveyor allows the fresh concrete in the hopper to be continuously discharged. Therefore, if a mixing device for fresh concrete is installed at one end of the traveling route of the self-propelled trolley, and a predetermined amount of ready-mixed concrete is stored in the hopper by this mixing device, the molds placed along the traveling route of the self-propelled trolley can be Fresh concrete in the hopper can be sequentially charged into the frame regardless of its size and the height of the concrete charging position.

If the screw conveyor is movable with respect to the hopper, the screw conveyor is substantially telescopic, and the positioning of its discharge end is easier. Further, when a belt conveyor is attached to a screw conveyor, the overall length when shortened can be reduced, and the overall operability can be significantly improved.

Example Examples will be described below with reference to the drawings.

The fresh concrete charging machine includes a self-propelled cart 10 loaded with a turning mechanism 20, a lifting device 30, a hopper 40, and a screw conveyor 50. However, the self-propelled trolley 10 is also equipped with a hydraulic pressure generator (not shown), an operation panel for operating the entire system, and a platform for an operator to board.

The self-propelled trolley 10 consists of a sturdy frame l1 with wheels 12, 12, . I can do it.

The turning mechanism 20 is loaded on the self-propelled cart 10 via support members 11a and lla. The turning mechanism 20 includes a fixed gear 21 made of a large-diameter external gear, a rotating member 22, and a turning motor 23 as main members (FIGS. 1 and 3). The plate 21a1 is fixed onto the support members 11a and 11a via the base member 21b. Further, a plurality of guide rollers 22b122 are provided on the lower surface of the rotating member 22 via a sliding member 22a.
b... are arranged in a circular shape, and the guide rollers 22b
, 22b... are assumed to roll on the circular guide rail 21C on the deck plate 2la. That is,
The rotating member 22 is rotatable via guide rollers 22b, 22b, . . . with the center of the guide rail 21G as a pivot center CL.

A bracket 22C for attaching the swing motor 23 is protruded from one end of the rotating member 22. Further, a pinion 23a is fixed to the shaft end of the swing motor 23, and the pinion 23a meshes with the fixed gear 21.

The lifting device 30 includes a fixed frame 31 erected at one end of the rotating member 22 and a movable frame 3 slidable with respect to the fixed frame 31.
2 and a cylinder 33 as the main members (Fig. 1,
Figure 2). The base end of the cylinder 33 is connected to the upper surface of a spacer block 33a fixed to the rotating member 22, and the tip of the rod of the cylinder 33 is configured to push up the top of the movable frame 32. .

A bracket 34a is attached to the tip of the rod of the cylinder 33.
Sprockets 34b, 34b are pivotally attached via the sprockets 34b, 34b, and chains 34, 34 are wound around the sprockets 34b, 34b. However, one end of the chains 34, 34 is fixed to the upper surface of the base block 33a, and the other end is connected via a connecting block 34Cs34c,
A sliding bracket 35 is attached. cylinder 3
3, the movable frame body 32 can move up and down guided by the fixed frame body 31. At this time, the sliding bracket 35 is moved along the front surface of the movable frame body 32 by the chains 34, 34. The movable frame 32 can be raised and lowered twice as much as the movement stroke.

Hopper 40 is attached to sliding bracket 35 via intermediate bracket 41. The hopper 40 is a box-shaped container with a large opening at the top, and there are
Via the bracket 4 2 a s 4 2 a...
Guide rollers 42, 42... are pivoted (second
Fig. 4).

The screw conveyor 50 has a screw +L-51 and a gutter 52.
(Fig. 1, Fig. 2), and guide rollers 42, 42 are attached to guide rails 53, 53 attached to both sides of the gutter 52.
... are movably attached to the bottom of the hopper 40 by engaging with them.

The shaft 51a of the screw 51 is supported by the gutter 52 via a front bearing 5lb and a rear bearing 51c, and the rear end of the shaft 51a is connected to the discharge motor 54 via a chain 54a. There is.

A cylinder 55 is disposed below the screw conveyor 50, and the rod of the cylinder 55 is connected to the front end portion of the gutter 51 (FIGS. 1 and 4). However, the cylinder 55 is supported via a pair of brackets 42a, 42a that are long and bent and hang down below the gutter 52. Furthermore, a discharge tongue 51d is provided at the front end of the gutter 51, forming a discharge end of the screw conveyor 50.

When the cylinder 55 is expanded or contracted, the screw conveyor 50 will be able to move the guide rollers 42, 42... to the guide rail 53,
By rolling in 53, it is possible to move back and forth with respect to the hopper 40.

The fresh concrete charging machine having such a configuration (hereinafter simply referred to as the charging machine) is used in combination with a crosstalk device A disposed at one end of the rail RSR (FIG. 5).

When an operator gets on a platform (not shown) on the self-propelled trolley 10 and starts the travel motor 13 via an operation panel (not shown), the loading machine is moved to the rail R by the self-propelled trolley 10.
It is possible to move on the SR in the front and back direction (in the direction of arrow K1 in FIG. 5). However, the driving power at this time shall be supplied via a suitable trolley or moving cable.

When power is supplied by a moving cable, a cable winding drum is provided on the self-propelled trolley 10, and the moving cable is wound up or unwound on the cable winding drum depending on the travel distance of the self-propelled trolley 10. By doing so, it is possible to prevent the moving cables from being stretched out over the floor.

When the rotation motor 23 of the rotation mechanism 20 is started, the pinion 23a meshing with the fixed gear 21 is driven.
The rotating member 22 rotates, and the lifting device 30, hopper 40, and screw conveyor 50 are mounted on the rotating member 22.
can rotate together. In addition, the cylinder 33
By expanding and contracting, the sliding bracket 35 moves up and down via the moving frame 32 and the chains 34, 34.
The hopper 40 and the screw conveyor 50 can be set at arbitrary height positions. Further, by expanding and contracting the cylinder 55, the screw conveyor 50 can be moved relative to the hopper 40, and can be expanded and contracted with respect to the hopper 40 as desired. Therefore, by combining the horizontal movement by the self-propelled cart 10, the turning movement by the turning mechanism 20, the vertical movement by the lifting device 30, and the telescopic movement by the cylinder 55, the screw conveyor 50
The height and horizontal position of the discharge end of the screw conveyor 50 can be arbitrarily determined, and by starting the discharge motor 54, the ready-mixed concrete in the hopper 40 can be continuously discharged from the discharge end of the screw conveyor 50. is possible.

Therefore, formwork BSB/
. . , move the charging machine to the position of the crosstalk device A, and first store a predetermined amount of ready-mixed concrete in the hopper 40. Next, the entire assembly is moved to the vicinity of a specific formwork B by the self-propelled cart 10, the discharge end of the screw conveyor 50 is positioned at the concrete input position of the formwork B, and the discharge motor 54 is started. , pouring of ready-mixed concrete into the formwork B can be performed.

At this time, it is of course possible to change the position of the discharge end of the screw conveyor 50 as appropriate while charging the fresh concrete.

In this way, when the loading work for one mold B is completed, the mold B can be sequentially moved to the position of the next mold B, and the same work can be repeated thereafter. In addition, when moving by the self-propelled cart 10, the screw conveyor 50 is shortened and
It is preferable to avoid interference with the formworks B, B, etc., and it is preferable that the lifting device 30 lowers the center of gravity of the whole by lowering the hopper 40 and the like.

Another embodiment of the turning mechanism 20 may use a fixed gear 21 consisting of an internal gear (FIG. 6). Since the pinion 23a moves along the inner periphery of the fixed gear 21, the entire structure can be made compact.

Further, in FIGS. 3 and 6, the rotating member 22 and the fixed gear 21 can be assembled via a suitable thrust bearing, and in that case, the guide rollers 22b, 2
2b..., there is no need to use the guide rail 21C. When the fixed gear 21 is an external gear, a thrust bearing may be interposed between the inner circumference of the fixed gear 21 and the outer circumference of the spacer member 22a, and when the fixed gear 21 is an internal gear,
If a ring-shaped skirt is formed on the lower surface of the rotating member 22 and a thrust bearing is interposed between the inner periphery of this skirt and the outer periphery of the fixed gear 21 or the spacer member 2lb, it is possible to achieve a very simple structure. Can be configured.

The screw conveyor 50 is immovably attached to the bottom of the screw conveyor 40, and belt pulleys 61, 6 are installed below it.
1 and a belt 62 may be movably arranged (FIGS. 7 and 8). At this time,
Bracket 4 that pivots guide rollers 42, 42...
2 a s 4 2 a... shall be installed vertically on the side surface of the gutter 52, and the guide rails 53, 53 shall be attached to the belt conveyor 60. In addition, the cylinder 55
The rod is connected to a belt conveyor 60.

Since the belt conveyor 60 can be moved back and forth in the discharge direction of the screw conveyor 50 by the cylinder 55 (double-dashed line in FIG. 7), the ready-mixed concrete discharged from the screw conveyor 50 is transferred to the belt conveyor 60. It can be transported and discharged to any desired position.

The belt conveyor 60 is provided with appropriate guides 63, 6 to prevent the transferred fresh concrete from spilling to the side.
3 may be attached (Fig. 8).

Effects of the Invention As explained above, according to the present invention, by loading the rotating mechanism, the lifting device, the hopper, and the screw conveyor on the self-propelled cart, the ready-mixed concrete stored in the hopper can be , a desired amount can be continuously discharged from the discharge end of the screw conveyor, and the discharge position can be determined by combining the traveling movement of the self-propelled cart, the turning movement of the turning mechanism, and the lifting movement of the lifting device. As a result, both the horizontal and vertical positions can be changed at will, making it possible for one worker to perform the work of pouring fresh concrete into large formworks extremely efficiently. effective.

[Brief explanation of drawings]

Figs. is a usage state explanatory diagram. FIG. 6 is a diagram corresponding to FIG. 3 showing another embodiment. 7 and 8 show another embodiment, FIG. 7 is a front explanatory view of the main part, and FIG. 8 is a cross-sectional view taken along the line X--X in FIG. 7. 10...Self-propelled cart 20...Swivel mechanism 30...Elevating device 40...Hopper 50...Screw conveyor 60...Belt conveyor

Claims (1)

[Scope of Claims] 1) A self-propelled cart, a turning mechanism for loading onto the self-propelled cart, a lifting device mounted on the turning mechanism, a hopper mounted on the lifting device so as to be able to rise and fall, and a hopper for lifting and lowering the hopper. A ready-mixed concrete feeding machine equipped with a screw conveyor installed at the bottom. 2) The ready-mixed concrete charging machine according to claim 1, wherein the screw conveyor is movable relative to the hopper. 3) The ready-mixed concrete charging machine according to claim 1, further comprising a belt conveyor movable in the discharge direction of the screw conveyor provided below the screw conveyor.