JPH0324771Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an improvement of a slurry transfer device used in a concrete placing device, a sludge distribution device, etc.

(Prior art) The concrete pouring device that the applicant has already proposed is explained with reference to Figures 5 and 6.
is a cylinder for expanding and contracting the boom; 2 is a boom case; 2a and 2b are boom bodies that are extended and contracted by the cylinder 1; the boom case 2 is rotatably attached to the skid 4 via a swing bearing 3; When the turning motor 5 is driven, the boom case 2 can be turned horizontally to any desired position. Reference numeral 6 denotes a first winding drum for winding and unwinding a rubber hose 8 for pumping concrete on the side of the pouring site, and is mounted on the boom case 2 via a winding bearing 7. Also 9
10 is a winding motor that drives the winding drum 6 and constantly winds up the rubber hose 8 for pumping concrete onto the winding drum 6 with a constant tension, and 10 winds up the rubber hose 12 for pumping concrete on the concrete supply source side. The second winding drum is mounted on the boom case 2 via a winding bearing 11. Reference numeral 13 denotes a winding motor that drives the winding drum 10 to constantly wind the concrete pressure-feeding rubber hose 12 onto the winding drum 10 with a constant tension;
and the above-mentioned rubber hose 12 for pumping concrete.
They are connected by a steel transport pipe 14 having an S-shaped planar shape and having a rotary joint (such as a transport pipe joint) 18 . The boom is composed of a boom case 2 and boom bodies 2a and 2b, and a rubber hose 8 for pumping concrete is supported on a roller 19 attached to the boom. The rubber hose 8 for pumping concrete is pulled out, and the rubber hose 8 for pumping concrete is pulled out and the telescopic boom is operated in the retracting direction.
is wound onto the first winding drum 6. At this time,
The rubber hose 8 for pumping concrete is supported by guide rollers (not shown) and is let out or wound up. Furthermore, the telescopic force of the telescopic boom 2 and the winding force of the first winding drum 6 are
The rubber hose 8 for pumping concrete is set so as not to slack (apply a constant tension) when expanded and contracted. 17 is a hose guide that supports the tip of the rubber hose 8 for pumping concrete. The rubber hose 12 for pumping concrete is also pulled and balanced by the second winding motor 13 to prevent slack from occurring between the second winding drum 10 and the transport pipe 15 (concrete supply source side) outside the device. I'm letting you do it. In addition, 30 in FIGS. 5 and 6 is a concrete pressure hose support device on the boom bodies 2a and 2b, and the upper and lower rubber rollers 1
Among the rubber rollers 9a and 19b, the lower rubber roller 19b is rotatably supported by the frames 31 and 32, and the rotation shaft of the upper rubber roller 19a is supported by the frames 31 and 3.
Brackets 33, 3 are loosely fitted into the longitudinal holes (not shown) of No. 2 and loosely fit onto the rotating shaft of the rubber roller 19a.
4 and brackets 31a, 32a fixed to the upper ends of the frames 31, 32, the upper rubber roller 19a presses against the concrete pumping rubber hose 8 from above, and the lower rubber roller 19b A shaft rod of a manual handle 37 is fixed to the rotating shaft, and by rotating the manual handle 37, the concrete pressure feeding hose 8 is paid out.

As described above, in the concrete placing apparatus shown in FIGS. 5 and 6, fresh concrete pumped from a concrete pump (not shown) passes through the transport pipe 15 → rubber hose 12 for pumping concrete → S-type steel transport pipe 14 → rubber hose 8 for pumping concrete. Then, it is discharged from the tip of the hose 8 to a predetermined position. At this time, by letting out the rubber hose 8 for pumping concrete, concrete can naturally be poured into deep trenches. Furthermore, by slightly changing the mounting angle of the hose guide 17, it is also possible to discharge in the horizontal direction. If the boom bodies 2a and 2b are expanded and contracted, the first winding drum 6 is rotated, and if necessary, the winding drum 10 is rotated to wind up and unwind the concrete pumping rubber hoses 8 and 12. ,
Furthermore, if the swing bearing 3 is turned as necessary,
The tip of the concrete pressure-feeding hose 8 can be moved to any position, making it possible to place concrete in the entire surrounding area of this concrete placing device.

(Problems to be solved by the invention) In the concrete placing apparatus shown in Figs. 5 and 6,
Since the concrete pressure feeding hose 8 is fed out using the manual handle 37, the boom body 2b
If the tip of the handle protrudes from the floor part, the operator will not be able to reach the handle 37 position and will be unable to operate it. In addition, tension torque is always applied to the concrete pressure conveying hose 8 to prevent the hose 8 from sagging.In order to prevent the hose 8 from becoming entangled due to the tension torque, 8 had to be secured with ropes, etc.

The present invention addresses the above-mentioned problems, and includes a slurry pumping hose, a rotatable first drum that winds up or unwinds the side of the hose near the tip, and a rotatable first drum that winds up or unwinds the side of the hose near the root. a rotatable second drum for winding or unwinding;
In a slurry transfer device comprising a telescoping boom that supports a distal end side of a hose extending from a drum, and supporting each part in a rotatable manner, the slurry transfer device is mounted on the telescoping boom and movably supports the distal end side of the hose. A slurry transfer device characterized by comprising a pair of upper and lower rollers, a drive device that drives the rollers, and a hose fixing device that operates to fix the hose when the drive device stops. The target area can be operated even if the tip of the telescopic boom protrudes from the floor.
This prevents the slurry pumping hose from becoming entangled due to tension torque. Another object of the present invention is to provide an improved slurry transfer device that can further save labor.

(Means for Solving the Problems) As described above, the present invention includes a slurry pressure feeding hose, a rotatable first drum that winds up or unwinds the side near the tip of the hose, and a slurry pump near the base of the hose. A slurry transfer device comprising a rotatable second drum that winds up or lets out a supply source side, and a telescopic boom that supports a distal end side of a hose extending from the first drum, and supporting each of the parts in a rotatable manner, a pair of upper and lower rollers that are mounted on the telescopic boom and movably support the distal end side of the hose; a drive device that drives the rollers; and a drive device that operates when the drive device stops to fix the hose. It is equipped with a hose fixing device to
Since the rollers are driven by a drive device, even if the tip of the telescoping boom protrudes out of reach, the hose can be fed out and wound up. In addition, the hose fixing device operates and fixes the hose at the same time as the hose is fed out and retracted.
There is no need to secure it with ropes, etc. In addition, work that used to be done by two people can now be done by one person, resulting in labor savings.

(Embodiment) Next, the slurry transfer device of the present invention will be explained with reference to an embodiment shown in FIGS. 1 to 4, in which the slurry transfer device of the present invention is applied to a concrete pouring device. FIG. 1 shows the entire concrete pouring device, and FIG. The same parts as the concrete pouring equipment shown in are indicated by the same reference numerals. Further, 30 in FIGS. 2 and 3 is a concrete pressure-feeding hose support device, 19a and 19b are upper and lower rubber rollers, and the upper rubber roller 19a is pressed against the concrete pressure-feeding hose 8 by a spring 40, and is driven by a hydraulic motor 41. Lower rubber roller 1
9b rotates while sandwiching the concrete pressure feeding hose 8 with the upper rubber roller 19a to take in and take out the concrete pressure feeding rubber hose 8. Also 4
2 is a backing plate; the backing plate 42 is pressed against the hose 8 by a spring 43, and the rubber roller 19
Only when a and 19b rotate, the spring 43 is compressed by the cylinder 14, and the backing plate 42 is separated from the hose 8. A receiving patch plate 45 is attached to the opposite side of the patch plate 42 with respect to the hose 8. Further, FIG. 5 shows a hydraulic circuit, in which the pressure oil discharged from the hydraulic unit 21 is sent to the switching valve 23 via the throttle valve 22, and the rubber roller driving motor 41 is activated by switching the switching valve 23. At the same time, it is sent to the cylinders 18 and 44 via the shuttle valve 25, driving the cylinder 44, compressing the spring 43, and separating the cover plate 42 from the hose 8. 9 is a hose winding motor, 26 is a speed adjustment throttle valve, 27
is a switching valve for the hose winding motor, 28 is a switching valve, 2
9 is a pressure reducing valve.

(Function) Next, the function of the concrete placing device will be explained. When the switching valve 27 is closed and the switching valve 28 is opened, the pressure oil supplied from the hydraulic pump is
The pressure is reduced by the pressure reducing valve 29 and sent to the take-up motor 5 via the switching valve 28, which is rotated to rotate the take-up drum 7 via an internal gear, and the hose 8 is
However, if the hose support device 30 is not driven, the spring 43 presses the backing plate 42 against the hose 8, and the hose 8 is pulled in by the tensile force.
This prevents entanglement. When feeding out the hose 8, the hydraulic motor 4 is switched by switching the switching valve 23.
1 rotates and the rubber roller 19b is driven, and at the same time, the spring 43 is compressed by the hydraulic cylinder 44, the backing plate 42 is separated from the hose 8, and the hose 8 is let out. At this time, the speed of the hydraulic motor 24 is adjusted by the throttle valve 22, and the throttle valve 26
The speed of the hose winding motor 9 is adjusted so that the speed of the hose 8 being unwound from the hose support device 30 and the speed of the hose being unwound from the winding drum 6 match. When winding up the hose 8, the switching operation of the switching valve 23 is reversed to that for the above-mentioned unwinding. When the feeding and winding operations are completed and the switching valve 23 is returned to the neutral position, the hydraulic cylinder 44
The pressure oil returns to the tank, and the backing plate 42 is pressed against the spring 43.
It moves forward and is pressed against the hose 8.

(Effects of the invention) As described above, the present invention includes a slurry pressure feeding hose, a rotatable first drum that winds up or unwinds the side near the tip of the hose, and a rotatable first drum that winds up or unwinds the slurry supply source side near the root of the hose. In a slurry transfer device comprising a rotatable second drum for picking up or feeding out, and a telescoping boom supporting the distal end side of a hose extending from the first drum, each part of the slurry transfer device is rotatably supported. a pair of upper and lower rollers that are attached and movably support the distal end side of the hose; a drive device that drives the rollers; and a hose fixing device that operates to fix the hose when the drive device stops. It is equipped with
Since the above-mentioned action is performed, even if the tip of the telescoping boom protrudes out of reach of human hands, the slurry pressure feeding hose can be paid out and wound up. Furthermore, since the hose fixing device operates to fix the hose at the same time as the feeding and winding operations of the hose are completed, there is no need to tie the hose with a rope or the like. In addition, work that used to be done by two people can now be done by one person, resulting in labor savings.

[Brief explanation of the drawing]

Fig. 1 is a side view showing one embodiment of the slurry transfer device according to the present invention, Fig. 2 is an enlarged side view of the hose support device, Fig. 3 is its front view, and Fig. 4 is its hydraulic circuit diagram. FIG. 5 is a side view of a conventional concrete placing device, and FIG. 6 is a front view of its hose support device. 2a, 2b... telescopic boom, 6... first drum,
8... Hose for pumping slurry, 10... Second drum, 12... Hose for pumping slurry on the slurry supply source side, 15... Transport pipe on the slurry supply source side, 1
9a, 19b...Roller, 41...Drive device, 4
2 to 45...Hose fixing device.

Claims (1)

[Scope of utility model registration request] a rotatable first drum that winds up or unwinds the side of the hose near the tip thereof; a rotatable second drum that winds up or unwinds the slurry supply source side of the hose that is close to the root of the hose; A slurry transfer device comprising a telescoping boom supporting the distal end side of a hose extending from a first drum, and supporting each part in a rotatable manner, which is mounted on the telescoping boom and movable on the distal end side of the hose. A slurry transfer device comprising: a pair of upper and lower rollers that are supported by the rollers; a drive device that drives the rollers; and a hose fixing device that operates when the drive device stops to fix the hose. .