JPH0412342B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a concrete placing device, and in particular, it can be used over a wide range and in height by rotating and raising a placing conveyor while moving the angle along another inclined surface. To efficiently place concrete in different locations.

[Conventional technology]

As a conventional concrete spreader, there is one described, for example, in Japanese Patent Application Laid-Open No. 16324/1983. This includes a discharge conveyor that is vertically coupled to a tower, and the tower is mounted vertically on a vehicle.
The entire structure is movable by driving a vehicle.

[Problem that the invention seeks to solve]

However, such conventional concrete spreaders were constructed with the assumption that concrete pouring work would only be carried out on level ground, so when the vehicle drove on a slope, the entire tower, discharge conveyor, etc. would tilt, making it difficult to perform concrete pouring work. The problem is that it cannot be executed smoothly.

This invention was made in view of these conventional problems, and its purpose is to perform smooth concrete pouring even on slopes by controlling the swivel table and pouring conveyor in the same way as when working on a horizontal surface. It is said that

[Means for solving problems]

The concrete pouring device of the present invention includes a pouring conveyor that transfers the introduced concrete and pours it from a chute at the tip, a swivel table that supports the pouring conveyor so that it can be lifted up and down, and a swivel table that is rotatable. It is equipped with a supporting base and a moving trolley on which the base is supported and whose angle relative to the base is variable in accordance with the inclination angle of the ground. In addition to the above-mentioned configuration, a track for a moving trolley formed along the area to be concreted, a main conveyor for transporting concrete along the track, and a moving trolley connected to the main conveyor are provided. This mobile concrete spreader is provided with a tripper which is pulled by a moving trolley, and a tripper conveyor whose base end is connected to the tripper and whose tip end is connected to a pouring conveyor.

[Effect]

When the moving trolley is moved on an inclined surface, the angle of the moving trolley with respect to the base is changed according to the inclination angle, and even if the posture of the moving trolley changes in response to the inclined surface. , the posture of the base is always maintained in a predetermined state, for example, in a horizontal state. Therefore, since the attitude of the swivel table is always constant, the elevation and rotation of the pouring conveyor can always be carried out under constant conditions even if the slope angle of the ground on which the mobile cart moves changes. . Elevation of the placing conveyor is performed by raising and raising the placing conveyor with respect to the turning table, and turning of the placing conveyor is performed by turning the turning table with respect to the base. In this way, by moving the moving trolley and elevating and rotating the pouring conveyor, concrete can be placed smoothly in an area that is long in the moving direction of the moving trolley and wide in the width direction. Furthermore, even if there is a change in height at the pouring position in such a wide area, concrete can be reliably poured at that position by elevating the pouring conveyor.

Further, a moving cart moves along a track, and when this moves, a tripper including a tripper conveyor is pulled by the moving cart and moves. Further, the base end of the tripper conveyor is always connected to the tripper, and the tip end is always connected to the casting conveyor. Therefore, even if the moving trolley moves, the concrete from the main conveyor will
It is introduced into the continuous pouring conveyor via the tripper conveyor. Since the main conveyor is arranged along the track of the moving carriage, a predetermined amount of concrete can always be poured from the pouring conveyor no matter where the moving carriage is located.

〔Example〕

1 to 4 show an embodiment in which the present invention is applied to concrete pouring for constructing a spillway for a filter. A bird's eye view of the spillway is shown in FIG.

A track 1 is formed in this spillway by rails parallel to the water flow direction, and a first
A moving trolley 2 shown in the figure is arranged. The moving truck 2 is connected by a wire rope to a moving winch 3 installed at the top of the spillway, and when the slope of the spillway is large, the moving truck 2 is driven by the moving winch 3. 2 is made to move. Further, a moving motor 4 is mounted on the moving trolley 2, and when the inclination angle of the spillway is small or the spillway is horizontal, the moving trolley 2 is driven by this motor 4 to move. The drive source for moving the moving cart 2 is selectively used between the moving winch 3 and the moving motor 4.

A base 5 is supported on the moving trolley 2 so as to be relatively variable in angle. That is, between the movable trolley 2 and the base 5, the upper end of the fixed bracket 6 of the movable trolley 2 and the base 5 are pivotally connected on the upstream side of the spillway, and the extendable and retractable jack 7 is connected on the downstream side. The jacks 7 connected by are comprised of known cylinder devices, but it is also possible to use other jacks such as telescopic or link type jacks. The moving trolley 2 and the base 5 are arranged so that they can be brought into contact with each other and separated from each other on the downstream side. Further, on the moving trolley 2, there is provided a drag frame 41 extending laterally for pulling a tripper 34, which will be described later.

A swivel table 8 is rotatably supported on the base 5. The swivel table 8 is entirely gate-shaped except for the lower part, and supports a pouring conveyor 9, which will be described later. A turning motor 10 is installed on the turning table 8, and this turning motor 1
A turning gear 11 is fixed to the output shaft of the motor. Further, a gear 12 centered on the center of rotation of the swivel base 8 is provided on the upper part of the base 5, and the gear 12 and the swivel gear 11 mesh with each other. gear 12 while rotating
The rotating base 8 is configured to revolve around the rotating gear 11, and the rotating base 8 rotates together with the revolution of the rotating gear 11.

A pouring conveyor 9 is supported on the swivel table 8 so as to be able to move up and down. The placing conveyor 9 includes a first conveyor 15 that is pivotally connected to a fixed frame 13 fixed to the center of rotation of the turning table 8 by a pin 14, and a first conveyor 15
A second conveyor 16 is supported so as to be movable forward and backward. The first conveyor 15 has a pin 1 attached to the fixed frame 13.
Conveyor belt 1 to the boom pivoted by 4
The conveyor belt 17 is driven by a drive motor 18 at the rear end of the boom.

A moving frame 19 is engaged with the boom of the first conveyor 15 so as to be able to move forward and backward in the longitudinal direction.
A second conveyor 16 is supported at 9 . The second conveyor 16 consists of a conveyor belt 20 that spans its boom, and this conveyor belt 20 is driven by a drive motor 21 at the rear end of the boom.
On the boom of the first conveyor 15 is a second conveyor 1.
A forward/backward drive motor 22 of 6 is installed, and a wire rope 23 that is moved forward and backward by the motor 22 is connected to the moving frame 19.
is combined with

A chute 24 for pouring concrete is installed at the tip of the second conveyor 16. As shown in FIG. 3, the chute 24 consists of three plate-shaped rubber members 24a.
are connected in a triangular shape with their centers close together, and their elasticity provides resistance to the flow of concrete passing through them. When concrete passes through the inside, each plate-shaped rubber member 24a swells as shown by the chain line. As a material for this chute 24, a rubber belt for a conveyor or the like is used.

One end of an arm 25 is attached near the top of the swivel base 8, and the other end of the arm 25 is supported by a tension rod 26 extending from the top end of the swivel base 8. A counterweight 2 is attached to the outer end of the arm 25.
7 will be installed. Further, a winch 28 installed on the arm 25 and the tip of the first conveyor 15 are connected by a wire rope 29, so that the placing conveyor 9 is raised and lowered. The wire rope 29 is engaged with a sheave 30 at the upper end of the swivel table 8.

In the above description, the concrete spreader main body A is composed of each member except for the track 1, and the entire structure is shown in FIG.

A main conveyor 31 is arranged along the track 1 .
The main conveyor 31 is connected to a conventional concrete supply source, such as a concrete mixer, and continues to transport concrete downstream of the spillway. This main conveyor 31 is a conveyor frame 3
2, and this frame 3
2, a track 33 is provided. And on the track, the main conveyor 31 can be moved midway.
4 will be installed.

The tripper 34 is a wheel 3 that rolls on a track 33.
5, an underframe 36 to which this wheel is attached, a connecting portion 36a fixed to the rear end of the underframe 36, and an underframe 3.
6 and bypasses the main conveyor 31, and a chute 38 facing the part where concrete falls from the main conveyor 31 and supported by the underframe 36. An end portion of the traction frame 41 of the moving trolley 2 is connected to the connecting portion 36a. The chute 38 is swingably supported with respect to the underframe 36, and because the conveyor frame 32 is arranged on an inclined surface and the frame 32 itself is inclined, the underframe 36 is inclined. Also, the chute 38 is vertically supported.

A conveyor support frame 39 is fixed to the lower part of the chute 38, so that the conveyor support frame 39 can swing freely together with the chute 38. The rear end of the tripper conveyor 40 is supported within the conveyor support frame 39. The tripper conveyor 40 is a conveyor for supplying concrete transferred by the tripper 34 from the main conveyor 31 to the pouring conveyor 9 of the concrete spreader main body A, and includes a frame (not shown) and a conveyor belt spanning the frame. and a driving source. Although not particularly shown, the frame of the tripper conveyor 40 has its rear end attached to the conveyor support frame 39, and its tip attached to the hopper frame 13b of the concrete spreader main body A so as to be freely pivotable. Further, the relationship between the tip of the tripper conveyor 40 and the hopper frame 13b is such that the tripper conveyor 40 is always located at the center of rotation of the hopper frame 13b.
Regardless of the turning position of the pouring conveyor 9,
Concrete is always supplied from the tripper conveyor 40 to the base end of the conveyor belt 17. Reference numeral 13a denotes a chute, which is located above the turning center of the turning table 8 and is configured to guide concrete from the tripper conveyor 40 to the conveyor belt 17.

Note that the second conveyor 16, arm 25, and swivel table 8 are provided with a deck and handrail for workers to walk on, and the swivel table 8 is provided with a ladder for climbing up to the arm 25. However, they are omitted in FIG.

Next, the operation of this embodiment will be explained.

Concrete transferred from the concrete supply source by the main conveyor 31 reaches a tripper 34, falls from the main conveyor 31, and is transferred via a chute 38 to a tripper conveyor 40. Then, the concrete of the tripper conveyor 40 is supplied from its tip to the rear end of the first conveyor 15 that constitutes the pouring conveyor 9, and transferred from the tip of the first conveyor 15 to the second conveyor 16. The concrete is transferred to the tip of the second conveyor 16 and placed in a predetermined area via the chute 24. Inside the chute 24, a plate-shaped rubber material 24a
The elasticity of concrete provides resistance to the concrete, and the aggregate and cement milk can be poured without separating.

At this time, in order to adjust the concrete placement position, expansion/contraction, elevation, rotation of the pouring conveyor 9, and movement of the concrete spreader body A are appropriately selected and performed. Expansion and contraction of the placing conveyor 9 is performed by moving the second conveyor 16 forward and backward. To do this, the second conveyor 16 may be moved along the boom of the first conveyor 15 by driving the forward/backward drive motor 22 in either forward or reverse direction to move the wire rope 23.

Further, the placing conveyor 9 is raised or raised by driving the winch 28 in either forward or reverse direction to wind up or let out the wire rope 29. As a result, the pouring conveyor 9 is lifted up around the pin 14. In this embodiment, the pouring conveyor 9 can be raised and lowered within a range of 20 degrees with respect to its horizontal state.

The placing conveyor 9 is turned by driving a turning motor 10. When the turning gear 11 is rotated by the turning motor 10, the turning gear 11 revolves around the gear 12. Therefore, the turning table 8 to which the turning motor 10 is fixed turns, and the placing conveyor 9 supported by the turning table 8 turns. In this embodiment, the turning angle of the pouring conveyor 9 is set to approximately 260 degrees. Note that the rear end of the pouring conveyor 9 passes through the center of rotation, and the tip of the tripper conveyor 40 also faces the center of rotation, so no matter which angle the pouring conveyor 9 turns, the tripper conveyor 9 will not rotate. Concrete from the concrete conveyor 40 is constantly supplied to the pouring conveyor 9.

When the inclination angle of the track 1 changes, the jack 7 is expanded and contracted to adjust the angle of the moving trolley 2 with respect to the base 5, thereby maintaining the base 5 in a horizontal state at all times. Further, movement of the moving cart 2 on the track 1 (that is, movement of the concrete spreader body A) is performed by either the moving winch 3 or the moving motor 4. By this movement, the pulling frame 41 pulls the tripper 34, so the tripper 34 also moves along the track 33, and the concrete spreader body A and the tripper 34 always move together. At this time, the angle of the orbit 33 changes and the tripper 34
Even if the relative positional relationship between the chute 38 and the chute 13a changes, the conveyor support frame 39 swings together with the chute 38 as shown by the chain line in FIG. Since the rear part of the tripper conveyor 40 slides and keeps the tripper conveyor 40 in a predetermined state at all times, concrete transfer by the tripper conveyor 40 is not hindered.

Thus, according to this concrete pouring device, by the movement of the concrete spreader main body A and the rotation, expansion and contraction, and elevation of the pouring conveyor 9, continuous concrete pouring can be carried out in a wide range of the spillway of the field dam and its surroundings. It becomes possible to set

The concrete placing equipment of this embodiment is used to construct the spillway of a field dam, but it can also be used for construction of other parts of a field dam, other types of dams such as concrete dams, or construction sites other than dams. Of course, it can also be applied.

〔Effect of the invention〕

As explained above, according to the present invention, when the moving cart is moved on an inclined surface, the angle of the moving cart with respect to the base is changed according to the inclination angle, and the moving cart is moved on an inclined surface. To always maintain a predetermined posture of a base even if the angle changes in response to an inclined surface. Therefore, since the attitude of the swivel table is always constant, the elevation and rotation of the pouring conveyor remains constant even if the inclination angle of the ground on which the mobile cart moves changes.
It has the effect of being able to be performed under certain conditions at all times. In addition, concrete is poured by moving the mobile cart and elevating and rotating the pouring conveyor.
This can be done smoothly in an area that is long in the moving direction of the moving cart and wide in the width direction, and even if there is a change in the height of the pouring position in such a wide area, it will not change due to the elevation of the pouring conveyor. This has the effect of ensuring that concrete is placed at the correct location.

Furthermore, when the moving trolley moves along the track, this moving trolley pulls the tripper and moves the tripper together with the moving trolley, so even if the moving trolley moves, the concrete from the main conveyor will not flow. It is introduced into the continuous pouring conveyor via the tripper and tripper conveyor. Since the main conveyor is arranged along the track of the moving carriage, there is also the advantage that a predetermined amount of concrete can always be poured from the pouring conveyor no matter where the moving carriage is located.

[Brief explanation of drawings]

FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a side view showing an example of the tripper, FIG. 3 is an enlarged plan cross-sectional view of the chute, and FIG. 4 is a bird's-eye view of the whole. A... Concrete spreader body, 1... Track, 2... Moving trolley, 5... Base, 7... Jacket, 8... Swivel base, 9... Placing conveyor, 14
...Pin, 15...1st conveyor, 16...2nd
Conveyor, 17... Conveyor belt, 20... Conveyor belt, 24... Shoot, 31... Main conveyor, 33... Track, 34... Tripper, 38
...Chute, 39...Conveyor support frame, 40...
…Tritupa conveyor.

Claims (1)

[Scope of Claims] 1. A pouring conveyor that transfers introduced concrete and pours it from a chute at its tip, a swivel table that supports the pouring conveyor so that it can be lifted up and down, and a swivel table that supports the swivel table so that it can turn. 1. A concrete pouring device comprising: a base; and a moving cart on which the base is supported and whose angle relative to the base is variable in accordance with the inclination angle of the ground. 2. The concrete placing device according to claim 1, wherein the placing conveyor is configured to be expandable and contractible. 3. The concrete casting device according to claim 1 or 2, wherein the chute is made of an elastic material biased so that the flow path becomes narrow. 4. The method according to any one of claims 1 to 3, wherein a jack that expands and contracts is interposed between the moving cart and the base as a means for changing the angle of the moving cart with respect to the base. Concrete placement equipment. 5. A pouring conveyor that transfers introduced concrete and pours it from a chute at the tip, a swivel table that supports the pouring conveyor so that it can be lifted up and down, a base that supports the slew table so that it can rotate, and a base. A moving trolley is supported and whose angle relative to the base is variable according to the inclination of the ground, a track for the moving trolley is formed along the area to be concreted, and the concrete is transported along the track. a main conveyor,
A tripper provided on the main conveyor, connected to a moving cart and pulled by the moving cart, and a tripper conveyor that pulls the tripper whose base end is connected to the tripper and whose tip is connected to the casting conveyor. Concrete pouring equipment characterized by: 6 The connection between the tripper and the tripper conveyor is such that the tripper conveyor is pivotally connected to the tripper so that it can roll and slide, so that the attitude of the tripper conveyor is maintained even when the attitude of the tripper changes. A concrete placing device according to claim 5.