KR101772191B1

KR101772191B1 - Power cutters for manhole repair

Info

Publication number: KR101772191B1
Application number: KR1020160019429A
Authority: KR
Inventors: 윤계용
Original assignee: 윤계용
Priority date: 2016-02-19
Filing date: 2016-02-19
Publication date: 2017-08-28

Abstract

The present invention relates to an electric / telecommunication facility, a passage for maintenance of an underground facility such as a gas or a sewer line, and a cutter for repairing a manhole that partly cuts the road surface to compensate for the replacement or height of the manhole installed on the road, The cutter is mounted on a manhole cover in a detachable manner and has a base plate provided with a spur gear at the center thereof and a pinion installed concentrically on the spur gear of the base plate and driven by a separate hydraulic motor A rotating shaft rotatably supported on a spur gear, a shaft on the upper surface, and a rod-shaped bed having one end joined to the bearing water portions installed on both left and right sides and the other end made of a free end; And a reciprocating unit equipped with a cutter driven by the power of the engine, and between the pillar and the reciprocating unit Hayeoseo a hydraulic cylinder, when the hydraulic cylinder is extended and retracted reciprocally exchange the one end of the bed as the center of rotation is Me cutter to cut the road surface for repair while elevating the circumferentially inclined.

Description

{Power cutters for manhole repair}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to maintenance of a manhole installed on a road as a passage for maintenance of an underground facility such as an electricity, a communication facility, a gas or a sewer pipe, The present invention relates to a power cutter for repairing manholes.

A manhole installed on the road for maintenance of underground facilities is provided with a hollow concrete structure having a predetermined width which is provided on the path of the underground facilities to excavate from the road surface to provide a work space and then the road surface is provided on the upper side of the concrete structure And a lid provided in the same line.

However, settlement phenomenon is occurring due to the aging of the road surface in the manhole cover installed on the road surface or the overlay for repairing the road surface damaged by the vehicle passing and the impact, and such sinking of the manhole cover may cause shock to the passing vehicle, It is becoming the main factor of.

In order to compensate for the settlement of the manhole cover, the height of the manhole cover or the surface of the manhole may be repaired by repairing or replacing the lid due to aging. In repairing or replacing the manhole cover or the surrounding road surface, A cutter is used to partially cut the road surface around the manhole cover so that the height of the lid can be corrected or replaced or the damaged road surface can be repaired.

Various cutting machines have been developed and used up to now. For example, there is a base portion provided in a horizontal direction on a front surface of a steering portion provided with a handle, and a driving portion on which a disk- And a height adjusting portion and a rotating shaft for varying the height of the cutting edge are formed on the outer side or the inner side of the base portion.

The cutter thus constructed moves the circular cutting blade circumferentially about the rotation axis provided in the base of the worker by hand, while the cutting blade is gradually lowered in the vertical direction by using the height adjusting portion The road surface around the manhole cover is partially cut off to perform a desired maintenance or replacement work.

However, such a cutter has a relatively narrow and vertical cut around the manhole for repairing or repairing the road surface on the circumference around the manhole for repairing, It is difficult to carry out the compaction after plugging in, and thus the repair of the road surface is easily broken, shortening the service life.

Thus, recently, the partial incision around the manhole to be repaired has not been made as a vertical plane but is incised into an inclined plane, thereby securing the maintenance work space of the manhole, improving the compaction and improving the service life of the repaired road surface A cutting machine capable of cutting the cutting edge is required.

Korean Registered Patent No. 10-1553861

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method and apparatus for lifting and lowering a cutter on a circumferential surface so that a road surface to be repaired is sloped so as to secure a repair work space, And to provide a power cutter for repairing a manhole capable of obtaining a package and extending a service life.

It is another object of the present invention to provide a power cutter for a manhole repair that allows a cutter to be easily transported using a trailer installed in a detachable manner.

It is still another object of the present invention to provide a power supply for a manhole repair which can improve workability by freely adjusting the maintenance area by simply controlling the turning radius by the reciprocating unit that the cutter is moved forward and backward by the operating member Cutter.

It is an object of the present invention to provide a maintenance channel for maintenance of an underground facility such as an electricity, a communication facility, a gas or a sewer pipe, and a manhole repair part for cutting off the road surface The cutter is mounted on a manhole cover in a detachable manner and has a base plate provided with a spur gear at the center thereof. The cutter is installed on a concentric shaft on the spur gear of the base plate and is driven by a separate hydraulic motor. A pinion rotatably driven by a pinion gear to move in a circumferential direction on a spur gear and having a rod on the upper surface and a rod-shaped bed having one end connected to the bearing water portions installed on both left and right sides, The bed is equipped with an engine and a power-driven cutter, The hayeoseo a hydraulic cylinder is installed, when the hydraulic cylinder is extended and contracted is Me reciprocal exchange to cut one end of the bed as the center of rotation is inclined road surface for repair while the cutter elevating the circumferential phase.

The effect of the power cutter for repairing a manhole according to the present invention is as follows. The cutter is raised and lowered into a circumferential phase having a center of rotation as a center of rotation, and the road surface to be repaired is slanted so that the maintenance work space is secured and the package compaction It is possible to obtain a stable package and prolong the service life even if it is higher than the height.

In addition, according to the present invention, a power cutter for manhole maintenance is carried using a trailer installed in a detachable manner using a pull pin provided on a rotating disk, thereby improving mobility of equipment.

Further, according to the present invention, the turning radius is easily adjusted by the reciprocating unit that the cutter is moved forward and backward by the operating member, so that it is possible to freely adjust the maintenance area and improve the workability and workability.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view schematically showing the overall configuration of a power cutter for repairing a manhole according to the present invention; FIG.
2 is an explanatory view showing a state in which a power cutter for repairing a manhole according to the present invention waits for repair work on a manhole to be repaired.
3 is an explanatory view showing a state in which a power cutter for repairing a manhole of the present invention cuts off the road surface to be repaired.
4 is an explanatory view showing a state in which a cutter working radius of a power cutter for repairing a manhole of the present invention is expanded and contracted.

Next, an embodiment of the present invention will be described. 1 and 2 schematically show the construction of a power cutter for manhole repair according to the present invention.

The present invention is a passage for maintenance of an underground facility such as an electric / communication facility, a gas or a sewer line, and a road surface to be installed on a road, in order to correct the height due to replacement of the manhole installed on the road, And to provide a power cutter for repairing a manhole.

In the drawing, reference numeral 10 denotes a bottom surface which is the bottom of the inventive cutting machine. The base surface 10 is detachably mounted on a manhole cover (a) to be repaired in a substantially disk shape, and a spur gear 12 is provided at the center of the top surface.

A rotating disc 20 is provided on the spur gear 12 of the base plate 10 so as to be freely rotatable and disposed concentrically with the spur gear 12. The rotating disc 20 has a separate The pinion 24 driven by the hydraulic motor 22 is rotated by being moved circumferentially on the spur gear 12.

And a rod 26 which is formed in an "a" shape on the upper surface of the rotating disk 20 and a rod-type bed 26 which is rotatably coupled to the bearing members provided at both ends, (Not shown). At this time, the beds 28 will be arranged in a pair of left and right.

In the bed 28 provided on the above-described rotating disk 20, the reciprocating disk 30 is freely moved back and forth by the operating member 32 of the lead screw.

An engine M and a cutter C driven by the power of the engine M are mounted on the carriage 30. At this time, the engine M will be a driving source for operating the hydraulic pump or the hydraulic motors for driving the hydraulic mechanisms to be described later.

On the other hand, a hydraulic cylinder 40, which is elongated and retracted by a separate hydraulic pump, is interposed between the column 26 provided on the rotary disk 20 and the reciprocating unit 30. [ At this time, the extension and contraction of the hydraulic cylinder 40 will cause the cutter C to be cut while raising and lowering the carriage 30 as the center of rotation of the bed 28.

On both sides of the rotary disk 20, a traction pin 21 for detachably mounting a trailer T for traction of the equipment is integrally provided.

In addition, the diameter of the periphery of the repair area can be freely varied by the reciprocating member 30 by the forward and backward movement of the lead screw by the operating member 32 on the bed 28.

The operation of the power cutter for repairing the manhole of the present invention will now be described with reference to FIGS. 3 and 4. FIG.

3 is a view illustrating a process of cutting a road surface for repairing a manhole cover of a power cutter for a manhole repair according to an embodiment of the present invention. The front half 20 is rotated by a pinion 24 driven by a separate hydraulic motor 22 provided on one side of the spool 20 by being moved on the circumferential surface of the spur gear 12, The reciprocating unit 30 rotates about one end of the bed 28, and the cutter C is raised and lowered circumferentially, and the road surface is incised.

Fig. 4 will freely enlarge and narrow the diameter around the incision area for maintenance by the reciprocating unit 30 on the bed 28 by the operation of the operating member 32 of the lead screw.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments.

10: base plate 12: spur gear
20: Rotor circuit 22: Hydraulic motor
24: Pinion 26: Column
30: reciprocating unit 32: operating member
40: Hydraulic cylinder

Claims

A power cutter for repairing a manhole that partially cuts the road surface to compensate for the height of the lowered lid due to replacement or aging of the manhole cover installed on the road as a passage for maintenance of underground facilities,
A base plate detachably mounted on the manhole cover and having a spur gear at the center;
A pinion which is installed concentrically on a spur gear of the base plate and driven by a separate hydraulic motor is rotated by being moved circumferentially on the spur gear, and a column is formed on the upper surface, and one end is installed on both left and right sides A rotatable assembly coupled to the bearing members and having a rod shaped free end at the other end;
Wherein the bed is provided with an engine and a reciprocating unit on which a cutter driven by the engine is mounted; And
And a hydraulic cylinder provided between the column and the reciprocating unit,
Wherein, when the hydraulic cylinder is extended or retracted, the reciprocating unit lifts the cutter circumferentially around the one end of the bed as a center of rotation, thereby cutting the road surface slantingly.

The method according to claim 1,
And a traction pin for detachably installing a trailer on the rotating shaft.

The method according to claim 1,
Wherein the diameter of the area around the repair area can be varied by forward and backward movement of the lead screw on the bed by the operating member on the bed.