KR960009852B1 - Gate housing opening and closing device of concrete pump - Google Patents

Abstract

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Description

Gate Housing Switchgear of Concrete Pump

1 is a partially cutaway perspective view showing a closed state of a first embodiment of a gate housing opening and closing device of a concrete pump according to the present invention;

Figure 2 is a partially cutaway perspective view showing the open state of the gate opening and closing device

3 is a schematic view of a second embodiment of a gate housing opening and closing device for a concrete pump according to the present invention.

4 is an explanatory diagram showing the opening and closing state of the gate housing opening and closing device

5 is a partially cutaway perspective view of a gate housing opening and closing device of a conventional concrete pump

6 is a cross-sectional view of a conventional gate housing opening and closing device of another concrete pump

7 is a VII-VII perspective view of FIG.

* Explanation of symbols for main parts of the drawings

1, 101: concrete piston 2, 102: concrete cylinder

3, 103: tubular bearing 4, 104: opening and closing hydraulic cylinder

5, 10, 105, 110: arm 6, 106: tubular side (axis)

7, 16, 17, 107, 116, 128: concrete transport pipe

8, 108: Hopper 9, 109: S-shaped swing tube drive cylinder

11, 111: opening and closing lock device 12, 112: coater support

13, 113: S-shaped fluctuation pipe 14, 114: gate housing

15, 115: S-shaped swing pipe support casing 19: frame

30: horizontal plane 117: coater

The present invention relates to a gate housing opening and closing device of a concrete pump.

An example of the conventional apparatus will be described with reference to FIG.

When the residual concrete in the hopper 01 of the concrete pump or the gate housing 021 is discharged, the hopper bottom cover 023 provided at the bottom of the gate housing 021 is discharged.

In order to discharge the residual concrete in the transport pipe, the seam member 026 of the transport pipe 027, which is divided in large part, is removed, so that the transport pipe 027 can be decomposed.

The drive device (arm 018 and gate switching hydraulic cylinder (019)) which swings the swing-type switching pipe 025 integrally to the end of the concrete cylinder 06 accommodating the concrete piston 07 I am placing it.

Also, Japanese Unexamined Patent Application Publication No. 63-50464 discloses a gate switching device for a concrete pump as shown in FIGS. 6 and 7.

6 and 7, (01) is a hopper, (02) is a gate housing fixed to the lower end of the copper hopper 01, the cross section of the entire copper housing (02) is J-shaped. . (03) is an oscillating tube of approximately S-shape viewed from the side located in the copper gate housing (02), and (04) is a swinging tube moving cylinder fixed to the hopper (01) and the gate housing (02). The other end (outer end) 03a of the copper tube 03 and the piston 03b disposed on the other end 02a are slidably inserted into the oscillating pipe moving cylinder 04. The oscillation tube 03 is capable of moving along the oscillation center line A of the oscillation oscillation tube 03 and the oscillation center line A of the oscillation oscillation tube 03. Further, (05) is a swing lever fixed to the outermost end of the swing tube (03), and (06a) and (06b) are concrete cylinders opened in the gate housing (02), and the hopper (01) An upper surface portion 02a and a lower surface portion 02b of the gate housing 02 extending from the suction ports of the concrete cylinders 06a and 06b to have curved surfaces along the oscillation tube 03. And (07) the concrete piston, (08) the concrete transport pipe, (09) the seam, the outermost end of the rocking pipe (03) to be mounted on the concrete transport pipe (08), (010) is an inlet supply and discharge port formed in the swing pipe moving cylinder (04), (011) is a hydraulic chamber in the swing pipe moving cylinder (04), and the upper end of the swing lever (05) is a hydraulic drive device ( (Not shown), it swings to the right around the swing center line A of the swing pipe 03, and the concrete cylinder 06a is connected to the concrete transport pipe 08 through the swing pipe 03. When it is, the concrete cylinder 06a is discharged, the concrete cylinder 06b is sucked, and the raw concrete in the hopper 01 is sucked into the concrete cylinder 06b, while the concrete cylinder is sucked. The raw concrete in (06a) passes through the rocking tube (03) to the concrete transportation tube (08). Is output. In addition, the upper end of the swing lever (05) is pushed to the right by the hydraulic drive device, and the swing tube (03) swings to the left around the swing center line (A), so that the concrete cylinder (06b) swings the swing tube (03). When it connects to the concrete transportation pipe 08 through it, the concrete cylinder 06a enters into a suction process, the concrete cylinder 06b enters into a discharge process, and suction and discharge of raw concrete are continued continuously. . In addition, when the position of the swing tube 03 is switched, the hydraulic oil is supplied from the hydraulic oil supply outlet 010 into the hydraulic chamber 011 in the swing tube moving cylinder 04, and the swing tube 03 follows the swing center line A. FIG. Even if the rocking tube 03 is pushed in the direction of the concrete transport tube 08 due to the resistance of the raw concrete, it is pressed in the direction of the concrete cylinder and subsequently pushed out of the raw concrete. Instead, the concrete cylinder end of the swing tube 03 keeps coming into close contact with the concrete cylinder, thereby preventing the leakage of the raw concrete. When the discharge is completed, the hydraulic oil in the swinging tube moving cylinder 04 is discharged from the hydraulic chamber 011 to the outside of the cylinder 04 via the hydraulic oil supply outlet 010 to allow the swinging tube 03 to swing. Position switching of (03) is performed.

The prior art has the following problems.

In the operation of removing a transport pipe or a member related to the transport pipe, the operator is a middle person because the transport pipe or a member is heavy. In addition, when replacing consumable parts, the gate housing must be dismantled, which takes time and effort.

Moreover, this disassembly work is performed every time the concrete compacting work is completed at the construction site, and the burden on the worker is large.

In addition, because of the structure in which the driving device for swinging the swing-type switching pipe is integrally disposed at the end of the concrete cylinder, the economic part of the concrete cylinder and the gate housing becomes complicated, and it is difficult to divide the two.

An object of the present invention is to provide an opening / closing device for a concrete pump gate housing in which work such as discharge of residual concrete, replacement of consumable parts, etc. in a hopper and a gate housing is made effective.

The gate housing opening and closing device of the concrete pump of the present invention has the following configuration.

One end portion of a gate housing device including a hopper, a gate housing, etc., is held in the concrete cylinder in a substantially extended direction so as to be opened and closed in a horizontal direction so that the opening of the gate housing is opened. It is characterized by being configured so that connection to the opening part of a cylinder is possible.

(2) The apparatus of the above-mentioned feature, characterized in that the support shaft is hollowed and a concrete transport pipe is allowed to penetrate therein.

(3) In the above apparatus, an S-shape rocking tube is disposed between the concrete cylinder and the concrete transport tube.

(4) One end portion of the device of the gate housing including the hopper, the gate housing, etc. is supported by the concrete cylinder so as to be opened and closed in the vertical direction via the horizontal axis in a substantially horizontal direction, and the opening of the gate housing is opened. It is characterized in that it is comprised so that connection to the opening part of a cylinder is possible.

(5) The apparatus (5) above is characterized in that an S-shape rocking pipe is provided between the concrete cylinder and the concrete transport pipe.

(6) In the device (4) above, the support shaft is a tubular shaft supported by a concrete transport pipe.

The gate housing opening and closing device of the concrete pump of the present invention (1) to (3) above releases the opening / closing lock device by a switch operation of the control panel, and then operates the opening / closing hydraulic cylinder, with the pivot in the substantially vertical direction as the pivot center. The gate housing device, including the hopper and the gate housing, is opened outward in the horizontal direction to discharge residual concrete remaining in the hopper or in the gate housing.

The gate housing opening and closing device of the concrete pump of the present invention (4) to (4) is a vertical direction of a gate housing device including a hopper, a gate housing, and the like, with an approximately horizontal axis as the pivot axis by the operation of the opening / closing hydraulic cylinder. Opening outwards, the residual concrete remaining in the hopper or in the gate housing is discharged.

Next, the gate housing opening and closing apparatus of the concrete pump of the first embodiment of the present invention will be described with reference to FIGS. 1 and 2, where (1) and (1) are a pair of concrete pistons, (2), ( 2) a pair of concrete cylinders having these concrete pistons (1), (2a), (2a) is the axis of these concrete cylinders (2), (19) is the same angle of the concrete cylinder (2) Frame mounted in the opening, tubular bearing (3) and (3) mounted on the movable frame 19, (4) open / close hydraulic cylinder, (5) arm, (6) copper arm (5) It is an excitation tubular shaft (support shaft), and a copper tubular shaft (support shaft) 6 is rotatably supported by the frame 19 via the respective tubular bearings 3. 30 is a horizontal plane connecting the axis lines 2a and 2a of the concrete cylinder 2, and the axis line of the tubular shaft 6 is substantially orthogonal to the same horizontal plane 30. .

(7) this concrete transport tube, (8) hopper, (9) S-shape oscillating tube drive cylinder, (10) arm, (11) opening and closing device, (12) coder support, (13) The S-shape oscillation tube, (14) is a gate housing integral to the hopper (8), (15) is a rocking tube support casing, (16), (17) is a transport tube, the hopper (8), the gate housing ( 14) One end portion of the gate housing device including the lamp housing is supported so as to be able to open and close horizontally in the concrete cylinder 2 via the tubular shaft (re-shaft) 6 in a substantially vertical direction, so that the gate housing The opening part of 14 is comprised so that connection with the opening part of the concrete cylinders 2 and 2 is possible. In addition, the concrete transport pipe 17 penetrates the tubular shaft (support shaft) 6 in the substantially vertical direction.

Next, the operation of the gate housing opening and closing device of the concrete pump shown in Figs. 1 and 2 will be described in detail. By the switch operation of a control panel (not shown), the open / close lock device 11 is released, and then the open / close hydraulic cylinder 4 is operated, and the hopper ( 8) and the residual concrete remaining in the hopper 8 or in the gate housing 14 by opening the concrete transport pipe 16 or the gate housing 14 integrally therewith to the outside in the horizontal direction (see FIG. 2). To discharge.

3 and 4 illustrate a gate housing opening and closing device for a concrete pump according to a second embodiment of the present invention.

Reference numeral 101 denotes a concrete piston, 102 and 102, two concrete cylinders which receive the concrete piston 1 and are arranged in parallel to each other, 103 are tubular bearings arranged in a substantially horizontal direction, Reference numeral 104 denotes an open / close hydraulic cylinder, 104 an open / close hydraulic cylinder, 105 an arm, 106 an tubular shaft 107, 116, 128 a conduit pipe, 108 a hopper, Reference numeral 109 denotes a driving hydraulic cylinder of an S-shape oscillation tube, 110 an arm, 111 an opening and closing device, 112 a cotter support, 113 an S-shaped oscillation tube, 114 a gate housing, Reference numeral 115 denotes an S-shape oscillation tube support casing, and 117 a coater.

The hopper 108 of the concrete pump, which has completed the concrete transportation work, is used to discharge the remaining concrete in the gate housing 114 and the transport pipe 116, or to replace the consumable parts. In the part, it is necessary to open and close the part of the gate housing 114 greatly.

Therefore, the gate housing 114 has a structure in which the hopper 108, the gate housing 114, the transport pipe 116, the device for driving the S-shape swing pipe 113, and the like are integrated. The gate housing 114 side and the concrete cylinder 102 side are connected to each other by a substantially horizontal hinge (combination of the tubular bearing 103 and the tubular shaft 106) to open and close the gate housing 114 side and the concrete cylinder 102 side.

The hinge has a hollow cross-sectional shape and allows a transport pipe 107 connected to a buoy (not shown) and a transport pipe 128 for connecting the transport pipe 116 to the inside thereof. Moreover, the tubular shaft 106 which let the transport pipe 128 pass through is integrated with the gate housing 114, and thereby makes the same movement as the gate housing 115 at the time of opening and closing operation | movement. Therefore, the tubular shaft 106 can move (rotate) independent from the tubular bearing 103 at the outlet side, that is, the transport pipe 107. As the opening / closing mechanism of the gate housing 114, the opening / closing hydraulic cylinder 104 is connected to a frame (not shown) supporting the concrete cylinder 102 and the arm 105 of the tubular shaft 106 serving as a hinge axis. The gate housing 114 is opened and closed by the expansion and contraction operation of the opening / closing inlet cylinder 104. In addition, the opening and closing lock device 111 at the bottom of the gate housing 114 is provided with a wedge-shaped coder 117 at the distal end of the piston rod (not shown) of the hydraulic cylinder, and when the gate housing 114 is closed. The encoder 117 is pushed into the hole of the coder support 112 formed in the side of the gate housing 114 by the hydraulic force of the opening and closing lock device 111, and the gate housing toward the concrete cylinder 102 ( 114) is completely restrained and crimped to prevent inadvertent weakening of airtightness at the time of concrete transport operation. In addition, these open / close hydraulic cylinders 104 and the open / close lock device 111 operate via a sequence control device (not shown), so that the open / close operation can be automatically performed with one switch.

The structure as described above facilitates the discharge of the residual concrete in the gate housing 114 after the completion of the compaction, and the S-shape oscillation pipe 113 is never (not disassembled) when the transport pipe 116 is closed. A sponge or the like is inserted into the concrete in the pipeline by air or liquid pressure.

The gate housing opening and closing device of the concrete pump of the present invention releases the opening and closing lock device by a switch operation of the control panel, and then operates the opening and closing hydraulic cylinder, and the hopper and the gate housing, etc., with the approximately vertical axis as the pivotal axis. The gate housing is opened to the outside of the horizontal square to discharge residual concrete remaining in the hopper or the gate housing, so that the gate housing can be opened to the concrete cylinder, and the residual concrete is discharged and The exchange can be performed easily.

Moreover, it is not necessary to directly support the total weight of all devices (hoppers, transport pipes, etc.) integrated in the gate housing by the opening / closing hydraulic cylinder, so that the device can be miniaturized, reduced in weight, and reduced in cost.

In addition, when the residual concrete is discharged and the consumable parts are replaced, the hopper or gate housing moves outward in the horizontal direction and does not come over the head of the worker. Since there is no work, the discharge work of the residual concrete and the replacement of the consumable parts can be promptly performed in a comfortable posture. In addition, there is no need to remove the gate housing, the litigation officer, etc. when opening the hopper.

In addition, the gate housing opening and closing device of the concrete pump of the present invention, by the operation of the opening and closing hydraulic cylinder, the gate housing device including the hopper, the gate housing, etc., with the horizontal axis in the horizontal direction as the pivot center axis, outward in the vertical direction. The residual concrete remaining in the hopper or the gate housing is discharged.

As a result, the gate housing device can be greatly opened with respect to the gate housing with respect to the concrete cylinder, thereby making it easier to discharge residual concrete and replace consumable parts.

It is not necessary to remove the gate housing and transport pipe when the hopper is opened. In addition, since the structure is simplified, it is possible to incorporate an opening and closing drive device or the like.

Claims (4)

One end of the gate housing device, including the hopper 8, the gate housing 14, etc., is opened to the concrete cylinder 2 so as to be horizontally opened and closed via the support shaft 6 in the substantially vertical direction. In the gate housing opening and closing device of the concrete pump, which allows the opening of the gate housing 14 to be connected to the opening of the concrete cylinder 2, the support shaft 6 is hollowed and the inside of the concrete A through-transport pipe (16), and the gate housing (14), the gate housing opening and closing device of the concrete pump, characterized in that the opening and closing is performed by the opening and closing hydraulic cylinder (4). The gate housing opening and closing device for a concrete pump according to claim 1, wherein an S-shape oscillation tube (13) is disposed between the concrete cylinder (2) and the concrete transport tube (16). One end of the gate housing device including the hopper 108, the gate housing 114, and the like is roughly supported by the concrete cylinder 102 so as to be opened and closed in the vertical direction via the support shaft 106 in the substantially horizontal direction. In the gate housing opening and closing device of the concrete pump, which allows the opening of the gate housing 114 to be connected to the opening of the concrete cylinder 102, the support shaft 106 is supported by the concrete transport pipe 128. And a cylindrical tubular shaft, and the opening and closing of the gate housing (114) is performed by an opening / closing hydraulic cylinder (104). 4. The gate housing opening and closing device for a concrete pump according to claim 3, wherein an S-shape swing tube (113) is provided between the concrete cylinder (102) and the concrete transport tube (116).