JPH0820954A - Spray device on slope - Google Patents

Abstract

PURPOSE:To reduce the spray loss and easily install a spray in a construction site and increase the safety of the work, by rotating large diameter wheels on a slope on vertically transferring, in the spray with an automatic lifter supported by a cable guided by an aerial cable. CONSTITUTION:An aerial cable 1 is erected near a slope and the wheels 9, 9 of a spraying device 6 supported and fixed on the cable 1 are rolled on the slope. In this case, the diameter of wheels 9, 9 is made 50-150cm. On spraying cement or the like on the slope, the spraying device 6 is automatically moved up and down along the cable. The sprayed width (b) is formed within the distance corresponding to the reciprocating movement of the spray nozzle 10. Moreover, the wheels 9, 9 are rotated along the waves on the slope during the vertical movement of the spraying device to make the distance between the nozzle 10 and the slope constant. The spray pressure is set to a condition in which the spray loss is less. After completion of spray on a part of the slope, the spraying work is carried out by a pitch corresponding to the sprayed width, on the whole face.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slope spraying apparatus, and more particularly to a slope spraying apparatus for spraying a mortar or other spraying material on a slope to enhance protection of the slope.

[0002]

2. Description of the Related Art Conventionally, as a slope spraying apparatus, an apparatus which sprays a slope by using a spraying machine running on rails provided along the slope (for example, an apparatus for spraying a slope). Japanese Patent Application Laid-Open No. Sho 60-123665) has been proposed, but this known spraying device has the following problems.

(1) At least 10 slopes to be constructed
There is a height of about 15 m, and providing rails along the slope is a rather difficult work, and it takes a lot of manpower and time to install the rails.

(2) Since the rail is inclined along the slope, there is a risk that the spraying machine installed on the rail may derail during traveling.

(3) Since the slope generally has undulations based on undulations, the distance between the spray nozzle provided in the spraying machine and the slope is significantly different between the recesses on the slope and the protrusions on the slope. In the concave part of the slope, the gap becomes large, so that the falling loss of the blast material tends to occur, and in the convex part of the slope, the gap becomes small, so that the band loss tends to occur, and the blasting loss of the blast material increases.

An object of the present invention is to eliminate the above-mentioned conventional problems.

[0007]

SUMMARY OF THE INVENTION The present invention relates to an aerial cable erected along a slope of a slope at a position relatively close to the slope between a slope of the slope and a bottom of the slope. A spraying machine with an automatic elevating device capable of automatically ascending and descending along the slope of the cable using the cable as a guide while being supported by the cable, wherein the spraying machine includes a large-sized rolling device capable of rolling on a slope during automatic ascent and descent The present invention relates to a slope spraying device, comprising a diameter wheel and a spray nozzle for spraying a spray material to a slope.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The following will describe one embodiment of the present invention with reference to the accompanying drawings.

The slope spraying device according to the present invention is characterized in that the slope between the slope of the slope a and the slope of the slope is clearly shown in FIG. An aerial cable 1 is provided along a slope of a slope a at a position relatively close to a.

As shown in FIG. 1, for example, as shown in FIG. 1, the cable 1 is provided with retaining rings 2, 2 at both ends of the cable 1. And fixing to the flat land portions a ₁ , a ₁ of the bottom of the butt using fastenings such as stakes 3, 3, and a spacing holder 4 is installed at the stump, and the stapler and the above-mentioned shoulder are used by the holding tool 4. This can be achieved by forming a predetermined gap between the cable 1 and the cable 1.
The aerial cable 1 can be erected by applying other appropriate erection means.

A cable tension device 5 is installed on one end side of the erected aerial cable 1, for example, on the butt end side, for the purpose of adjusting the degree of tension of the cable 1.

A spraying machine 6 with an automatic elevating device 7 capable of automatically ascending and descending along the inclination of the cable 1 with the cable 1 as a guide is suspended from the cable 1 toward the slope a. It is supported in various forms.

The details of the automatic lifting device 7 are shown in FIGS. 2 and 3, and the device 7 has a plurality of zigzag arrangements for sandwiching the cable 1 from above and below, eg, a set of three pulleys 7a, as shown in FIG. 7a, 7b, and these pulleys 7a, 7b
The spraying machine 6 can be supported against the gravitational force by a frictional engagement force generated between the cable 1 and the cable 1. Further, at least one of the pulleys 7a, 7a, 7b, for example, the intermediate pulley b is driven by a drive motor 7c (FIG. 3).
(See FIG. 1) to rotate forward and backward, so that the spraying machine 6 can be automatically moved up and down along the inclination using the cable 1 as a guide.

The automatic lifting device 7 is a main body portion 6 of the spraying machine 6.
It is installed at two positions on both ends of the cable grip 8 integrally attached to the upper end of a.

As shown in FIG. 3, the grip 8 has two side plates 8b, 8b facing each other with a cable insertion interval 8a.
And the automatic lifting device 7 on the side plates 8b, 8b.
, Pulleys 7a, 7a, 7b and a drive motor 7c are attached.

The main body 6a of the spraying machine 6 supported by the aerial cable 1 rolls on the slope a by frictional contact with the slope a when the spraying machine 6 moves up and down automatically along the inclination of the cable 1. A movable wheel 9 is provided.

The wheels 9 are provided at two locations on both sides of the aerial cable 1 as shown in FIG.

The slope a often undulates in the vertical direction as shown in FIG. 1, so that as a countermeasure against the swell of the slope a, the wheel 9 has a large diameter capable of overcoming the swell, for example, Those having a diameter of about 50 to 150 cm are used.

Several types of spraying machines 6 having different diameters of wheels 9 and 9 can be prepared and used depending on the situation at the construction site.

The spraying machine 6 is provided with a spraying material spray nozzle 10 as shown in FIGS.

The spray nozzle 10 includes a horizontal portion 10a and a vertical portion 1 extending from one end of the horizontal portion 10a toward the slope a.
0b, and an injection port 10c is opened at the tip of the vertical portion 10b.

The spray nozzle 10 is slidably supported at a horizontal portion 10a by a support frame 11 integrally attached to the upper end of the main body 6a of the spray machine 6, and a driving device 12 mounted on the frame 11 is provided. With the above operation, it is possible to reciprocate in the direction traversing the aerial cable 1 and parallel to the slope a.

The other end of the horizontal portion 10a of the spray nozzle 10 is connected via a flexible hose 13 to a pressurizing portion 14 for blowing material (FIG. 1).
), And is configured to receive the supply of the spraying material from the pressure feeding unit 14. As the spray nozzle 10 reciprocates, the hose 13 bends and deforms due to its flexibility, enabling the spray nozzle 10 to reciprocate.

FIG. 1 shows the state of installation of the apparatus of the present invention on a construction site.
Is schematically shown in.

As is apparent from FIG. 1, the aerial cable 1 is installed at a position relatively close to the slope a, and the wheels 9 of the spraying machine 6 supported and fixed to the cable 1 are grounded on the slope a. ing.

The erected aerial cable 1 has some slack, and the wheels 9, 9 have a large diameter of 50 to 150 cm. Therefore, the slack of the aerial cable 1 and the large diameters of the wheels 12, 12 are large. Due to the dimensions, the wheels 9, 9 can be grounded on the slope a without hindrance during the vertical movement of the spraying machine 6 regardless of the swell of the slope a.

When spraying the slope a by applying the device of the present invention, the spraying machine 6 is operated in the state shown in FIG. To move.

While the spraying machine 6 is moving up and down, the spraying nozzle 10 provided in the spraying machine 4 is reciprocated by the operation of the drive device 12, while the spraying nozzle 14 is moved through the hose 13 into the spraying nozzle 10. The spray material sent to the nozzle 10 is sprayed from the nozzle 10c at the tip of the nozzle 10 toward the slope a, thereby forming a spray layer b (see FIG. 3) on the slope a of the spray nozzle 10. It can be formed with a width corresponding to reciprocating movement.

The movement of the spraying machine 6 during the spraying operation of the spraying material may be any of a descending movement from the forehead to the butt, a rising movement from the butt to the forehead, and a repeating movement of ascent and descent. .

During the ascending / descending movement of the spraying machine 6, the wheels 9, 9 provided on the spraying machine 6 roll on the slope a along the swell, so that regardless of the swell of the slope a, The distance between the spray nozzle 10 provided in the spray machine 6 and the slope a is constant. By setting the spray pressure of the spray material to the optimum condition with a small spray loss, the spray loss can be reduced as much as possible.

After the spraying operation on the slope a at one place is completed, the installation position of the apparatus of the present invention is extended at a pitch substantially corresponding to the formation width of the spray material layer b by extending the shoulder and the slope. By spraying the spraying material on the slope at each position while sequentially shifting in the direction, the spraying material can be sprayed on the entire surface of the slope a.

[0032]

According to the apparatus of the present invention, the following effects can be obtained.

(1) Since the spraying machine is guided by an aerial cable, the installation of the guide is extremely easy and easy regardless of the topographically unfavorable condition of the slope, and the manpower and time required for the installation of the guide. Can be reduced.

(2) Since the spraying machine is automatically lifted and lowered by operating the automatic lifting device while being supported by the aerial cable, the spraying work does not require any manpower and the construction is performed on a sloped ground. It can be carried out safely regardless of the situation.

(3) Since the distance between the spray nozzle and the slope is constant regardless of the undulation of the slope, it becomes possible to set the spray pressure of the spray material to the optimum condition, It is possible to reduce the spray loss of the attachment material.

[Brief description of drawings]

FIG. 1 is an overall view schematically showing an embodiment of the present invention and an installation state at a construction site.

FIG. 2 is a partially cutaway side view showing, in an enlarged manner, how the spraying machine is attached to the aerial cable.

FIG. 3 is a plan view of FIG. 2 as viewed from a direction of an arrow.

[Explanation of symbols]

 1 aerial cable 2 retaining ring 3 pile 4 spacing tool 5 cable tensioning device 6 spraying machine 7 automatic lifting device 8 cable grip 9 wheel 10 spray nozzle 11 support frame 12 drive device 13 flexible hose 14 pumping section

Claims (4)

[Claims] 1. An aerial cable erected along a slope of a slope at a position relatively close to the slope between a shoulder and a slope of the slope, and the cable supported by the aerial cable. And a spraying machine with an automatic lifting device capable of automatically ascending and descending along the inclination of the cable with the guide as a guide. The spraying machine is equipped with large-diameter wheels that can roll on the slope during automatic lifting and spraying material. A slope spraying device comprising a spray nozzle for spraying on a surface. 2. A spraying apparatus according to claim 1, wherein wheels are provided at two positions with respect to the spraying machine with the hollow cable interposed therebetween. 3. The spraying device according to claim 1, wherein the wheels have a diameter of 50 to 150 cm. 4. The spraying apparatus according to claim 1, wherein the spraying machine is provided with a spraying nozzle so as to be capable of reciprocating in a direction parallel to the slope by remote control.