KR100595827B1 - Device and Control method of having Breaker for Wheel loader - Google Patents

Abstract

The present invention relates to a wheel loader equipped with a breaker and a control method thereof, and the hydraulic pressure supplied from the hydraulic tank 119 is formed to increase and supply pressure from the main pump 112 and the steering pump 113, and the main pump ( Control valve 111 for supplying while controlling the hydraulic pressure generated in 112 is formed, and formed in front and rear in the form of wheels to form a wheel 114 to be driven while rotating, the arm type to operate up, down, left and right to the front side Forming a boom 117, a lower portion of the boom 117 and the shanghai sending unit 116 to operate vertically and the steering unit 115 to operate left and right, plate-shaped coupling member at the tip of the boom 117 Reinforcing the inclined portion at an angle perpendicular to the ground on the loading unit 110 and the coupling member 118 formed at the tip of the boom 117 of the loading unit 110 and moving up, down, left and right while forming and driving 118 The hatch plate 123 that forms the member 124 is attached. And a breaker unit 120 formed at the lower portion of the hatch plate 123 at the bottom of the hatch plate 123 in the breaker body 122 to form a connection plate 125 at a right angle with the ground to crush the crushed material by the impact. The hydraulic pump is connected to the hydraulic supply pipe 134 according to the operation of the pilot valve 132 that switches the direction of the valve to the hydraulic pressure supplied to the main pump 112 and the steering pump 113 of the loading unit 110. Hydraulic supply port (P) to be supplied, the control valve 111 of the loading unit 110 and the control valve supply port (A) connected to the control hydraulic pressure supply pipe (135), the hydraulic supply side and the breaker hydraulic supply pipe of the breaker unit 120 ( Breaker supply port (B) connected to 136 and the breaker discharge port (T) connected to the hydraulic discharge side and the breaker hydraulic discharge pipe 137 is formed to alternately in the distribution valve 131 formed to distribute or supply the hydraulic pressure Hydraulic breaker Relief valve 133 is formed to discharge the supply to the 120 and the loading unit 110, and to prevent excessive output to one side, and to form a drain pipe 138 to be drained in accordance with the flow rate changes therein to supply hydraulic pressure alternately It is configured to include a distribution unit 130 formed to operate by.

Loading part, breaker, distribution valve, alternating control

Description

Wheel loader with breaker and control method thereof {Device and Control method of having Breaker for Wheel loader}

1 is a side view showing a wheel loader according to the prior art.

Figure 2 is a perspective view schematically showing a momentary boosting device for a wheel loader according to the prior art

Figure 3 is a side view showing a wheel loader equipped with a breaker according to the present invention.

Figure 4 is an exploded perspective view showing the coupling of the main part of the wheel loader with a breaker according to the present invention.

5 is a cross-sectional view showing the operating state of the loader on the main parts of the wheel loader equipped with a breaker according to the present invention.

Figure 6 is a cross-sectional view showing the operation state of the breaker part in the main part of the wheel loader equipped with a breaker according to the present invention.

7 is a hydraulic circuit diagram showing an operating state of a loader unit of a wheel loader equipped with a breaker according to the present invention.

8 is a hydraulic circuit diagram showing an operating state of a breaker portion of a wheel loader equipped with a breaker according to the present invention.

9 is a ball showing a control method of a wheel loader equipped with a breaker according to the present invention.

* Description of the symbols for the main parts of the drawings *

100: wheel loader 110: loading unit

111: control valve 112: main pump

113: steering pump 114: wheel

115: steering unit 116: Shanghai Songbu

117: boom 118: coupling member

119: hydraulic tank 119a: suction filter

119b: cooling unit 119c: recovery filter

120: breaker portion 121: chisel

122: breaker body 123: hatch plate

124: reinforcing member 125: connecting plate

130: distribution unit 131: distribution valve

132: pilot valve 133: relief valve

134: hydraulic supply pipe 135: control hydraulic supply pipe

136: breaker hydraulic supply pipe 137: breaker hydraulic discharge pipe

138: drain pipe

P: Hydraulic supply port T: Breaker discharge port

A: Control valve supply port B: Breaker supply port

The present invention relates to a wheel loader equipped with a breaker and a control method thereof, and more particularly, a state in which a breaker having a chisel is coupled to a hatch plate formed at the tip of a boom that is transported up, down, left and right in a steering wheel and a shanghai transport unit while driving with a wheel. By supplying the hydraulic pressure from the main pump and the steering pump through the distribution valve of the distribution part that alternately supplies the loader drive and the breaker, the wheel loader and the breaker can be smoothly operated by operating the steering and up and down, and at the same time. The present invention relates to a wheel loader equipped with a breaker that operates simultaneously and a control method thereof.

In general, when the construction machinery is classified by use, it is classified as an excavation, a transporting machine, a loading machine, a transporting machine, and the like.

Loader is a general term for a machine that is used to load soil, aggregates, etc. in dump trucks in construction work, or to load ore, excavated soil, and dumped slag from mines with conveyors. Is widely used in open pit mines and general factories, but is mainly used to load soil, aggregate, waste, etc. in dump trucks in construction.

When classified according to the driving method of the loader, it is classified into crawler type and tire type.

The caterpillar type is generally called a tractor, a dozer shovel, a crawler loader, and the like, and is a loading machine equipped with a bucket instead of a dozer with a bulldozer as a mother.

Tire type is generally called shovel loader, tractor shovel, wheel loader, payloader, etc., and it is a machine equipped with a bucket at the front part.

Wheel loader, which is a kind of loader as described above, is not only used for excavating or transporting soil, aggregate, stone, etc. in civil engineering and construction work, but also useful for transporting hay, garbage, lumber, etc. in addition to general work materials or towing a weight body. Construction machinery used.

Looking at the general wheel loader that performs such a role with reference to Figure 1 as follows.

A central control unit 11 configured to control various hydraulic pressures, driving, steering, and up and down of the boom 14, a wheel 12 formed to be driven and driven while being controlled by the central control unit 11, and the center A steering part 13 formed to rotate left and right to the front side of the control unit 11, a boom 14 formed to operate up and down and left and right to the front side of the steering part 13, and the boom 14. Shanghai transport unit 15 formed to transport the boom 14 up and down at the center of the bottom), and loaded to transport the soil, aggregate, stone, etc. to the front end of the boom 14 by the operation of the boom 14 It is configured to include a bucket 16 to be transported back and forth.

Such a general wheel loader 10 loads heavy materials such as aggregate and stone to the bucket 16 installed in the boom 14 moving up, down, left, and right by the steering unit 13 and the shanghai transport unit 15 operated by hydraulic pressure. To be transported.

The general wheel loader 10 as described above has a problem in that the capacity of the hydraulic pump for operating the bucket 16, the boom 14, and the steering unit 13 is limited, and thus, the heavy load of the hydraulic wheel may be damaged.

In order to solve the problem of the general wheel loader, the prior art to prevent the damage to overload by forming the hydraulic pressure is adjusted according to the weight of the heavy weight when transporting the heavy material to the bucket installed in the boom is supplied during the loading operation The momentary boosting device for a wheel loader has been filed in the Republic of Korea Patent Application No. 10-1998-0027635, which will be described with reference to FIG.

A main control valve (4) provided with a pump, a bucket cylinder and a boom cylinder, a relief valve connected between the bucket cylinder and the boom cylinder and the pump and preventing excessive hydraulic rise, and the main control valve (4). A relief valve includes a remote control valve 1 for supplying pilot pressure and a tank 3 for recovering pressurized oil, and a spring 41 fitted into the through hole 47 of the main control valve 4 body. In the hydraulic supply device for a wheel loader configured to function,

One end of the main control valve 4 is inserted into the through hole 47 of the manifold 44 and the spool is installed inside the manifold 44, the spool is installed so as to expand and contract the spring 41 (42) and a pilot line (25) connected from the other end of the manifold (44), a pressure oil supply side line (24) from the pump and a discharge side line (23) to the tank (3), respectively. The solenoid block 2 is operated according to the energization state of the solenoid 21, and is installed on the remote control valve 1, and is connected to the solenoid 21 by an electric wire 22 to operate. The pressure oil supplied from the supply side line 24 is supplied to the pilot line 25 through the solenoid block 2, and during the non-operation, the pressure oil in the pilot line 25 causes the discharge side line 23 to be discharged. That consists of a control switch 11 It features.

During normal operation, the relief pressure of the main control valve is kept low so that the hydraulic system is not overwhelmed, and the operator can arbitrarily increase the relief pressure of the main control valve when loading heavy materials such as lumps or rocks. To ensure effective loading.

Such a conventional booster for wheel loaders is equipped with a manifold to the control valve to control the relief pressure to transport the heavy material by adjusting the hydraulic pressure to prevent the damage caused by the weight change of the heavy material. .

However, the wheel loader of the prior art increases the efficiency by adjusting the pressure discharged from the hydraulic pump to increase the efficiency in the operation of transporting heavy materials to the bucket, but when the breaker is crushed by the rock is equipped with a hydraulic discharge There was a problem that the breaker and loading can not be performed at the same time only by adjusting the pressure.

In addition, it is difficult to attach a breaker formed with a chisel at the tip of a boom formed in a wide shape so that the bucket is coupled to transport heavy loads, thereby reducing the utilization efficiency of the equipment and additionally equipped with a breaker when crushing. As it should be increased construction costs, there was a problem that the construction period is longer.

In addition, the impact equipment such as the breaker should be operated separately from the hydraulic circuit of the wheel loader formed for transporting up, down, left and right as the input and output of the hydraulic in a short time, when used as a single equipment There was a problem that time is delayed and work efficiency decreases as the shredding work by the left and right up and down transfer and the breaker is used while changing.

In order to solve the problem, the main object of the present invention is a wheel loader equipped with a boom to be transported to the shanghai sending section and the steering section and transported up, down, left and right while driving at the rotation of the wheel, and install a breaker at the tip of the boom To maintain and maintain the pressure generated from the hydraulic pump and the steering pump at the relief valve, and to supply and discharge the control valve and the breaker that supply hydraulic pressure to the steering unit that moves the boom up, down, left, and right and the Shanghai conveyer by operating the pilot valve. As the distribution valve which continuously distributes to the side operates and distributes the hydraulic pressure to the breaker and the loading unit alternately, the breaker is crushed and the boom equipped with the breaker is moved up, down, left and right while the breaker is mounted on the wheel loader. Shredding while continuously transporting without disconnection of hydraulic supply Since performed up, and by mounting the breaker as required in the wheel loader performs the crushing work to enlarge the capacity utilization of the equipment while reducing the construction cost is to to reduce the construction time.

In addition, another object of the present invention is formed by combining the hatch plate and the coupling member of the boom so that the breaker is mounted in a form perpendicular to the crushed material to be crushed by the tip of the boom moving up and down, left and right by the drive of the shanghai sending unit and the steering unit to the front side of the wheel loader. As a result, a breaker is mounted at the tip of the boom so that it is perpendicular to the ground to increase the efficiency of the crushing operation.

Further, another object of the present invention is to form a reinforcing member to the side of the inclination surface of the hatch plate formed so that the coupling member and the breaker is coupled to the tip of the boom of the wheel loader to suppress the transmission of vibration generated while hitting the debris by the descending of the chisel To improve the life of the equipment.

In addition, another object of the present invention is to easily mount and use the breaker in the wheel loader for transporting heavy materials in general while moving up, down, left, and right, to expand the useful range of the equipment, and can perform a variety of work with a single equipment construction period To reduce the cost and maintenance costs.

As such, the wheel loader equipped with the breaker of the present invention devised to achieve the object is formed so as to supply the hydraulic pressure supplied from the hydraulic tank to increase the pressure in the main pump and the steering pump, while controlling the hydraulic pressure generated in the main pump The control valve to be connected to form, and formed in front and rear in the form of wheels to form a wheel to be driven while rotating, forming a boom of the arm type to operate up, down, left and right on the front side, and the shanghai transport section And a steering unit which operates left and right, and forms a plate-like coupling member at the tip of the boom and moves up, down, left and right while driving, and an inclined portion at an angle perpendicular to the ground on the coupling member formed at the boom tip of the loading unit. Joining the hatch plate formed with the reinforcing member to the chisel breaker body at the bottom of the hatch plate A breaker part which is formed at right angles to the ground with a connection plate and crushes the crushed material by hitting, and a hydraulic pressure according to the operation of the pilot valve for switching the direction of the valve to the hydraulic pressure supplied to the main pump and the steering pump of the loading part. Hydraulic supply port connected to the supply pipe for supplying hydraulic pressure, control valve supply port connected to the control valve and control hydraulic supply pipe of the loading section, breaker supply port connected to the hydraulic supply side of the breaker section and the breaker hydraulic supply pipe, and connected to the hydraulic discharge side and the breaker hydraulic discharge pipe A breaker discharge port is formed to alternately supply and discharge hydraulic pressure from the distribution valve formed to distribute or supply the hydraulic pressure to the breaker portion and the loading portion, and a relief valve is formed to prevent excessive output to one side. Drain Drained by Change Forming the tube will be characterized in that it comprises a distribution unit configured to operate by supplying the hydraulic pressure to alternate.

In addition, the control method of the wheel loader equipped with the breaker forms a wheel running in the form of a wheel and is transported vertically from the shanghai transport to the front and perpendicular to the ground at the lower end of the front end of the loading section boom formed to be transported left and right in the steering section A breaker mounting step of attaching the breaker unit to the loading unit by coupling the hatch plate to which the breaker body of the breaker unit in which the chisel is formed is coupled to the coupling member; A hydraulic supply step of supplying the hydraulic pressure of the hydraulic tank to the hydraulic supply port of the distribution unit through the hydraulic supply pipe by doubling the pressure in the hydraulic pump of the hydraulic tank via the suction filter in the state in which the breaker is mounted in the breaker mounting step; The hydraulic pressure supplied from the hydraulic pressure supply pipe is provided with the hydraulic pressure supply port, the control valve supply port, the breaker supply port, and the breaker discharge port formed in the hydraulic pressure supply step to prevent an over output from the distribution valve acting as a pilot valve to the relief valve. A hydraulic distribution control step of controlling the hydraulic pressure supply pipe connected to the control valve of the loading unit and the breaker hydraulic supply pipe and the breaker hydraulic discharge pipe connected to the breaker unit to be operated respectively; In the hydraulic distribution control step, when the distribution valve of the distribution unit is opened by the pilot valve driving to the breaker supply port connected to the breaker hydraulic supply pipe and the breaker discharge port connected to the breaker hydraulic discharge pipe to operate the breaker unit, the hydraulic pressure supplied from the hydraulic supply port is broken by the breaker hydraulic pressure. Breaker operation step of crushing rock while entering the breaker body through the supply pipe and the breaker supply port and hitting the chisel down and crushing the crushed material and the hydraulic pressure discharged during the rise through the breaker hydraulic discharge pipe and the breaker discharge port; When the control valve supply port connected to the control hydraulic pressure supply pipe is opened by driving the pilot valve to operate the distribution valve of the distribution unit in the hydraulic distribution control step, the hydraulic pressure supplied from the hydraulic supply port is controlled by the control valve. A loading unit operation step of supplying the unit and recovering the hydraulic tank through the cooling unit and the recovery filter after the operation, and operating the boom equipped with the breaker unit up, down, left, and right; The breaker operation step and the loading unit operation step is characterized in that it comprises an alternating control step of controlling to operate while alternating as necessary according to the operation of the distribution valve of the distribution unit.

Thus, looking at the preferred embodiment of the wheel loader to be equipped with the breaker of the present invention configured as follows with reference to the drawings.

Figure 3 is a side view showing a wheel loader with a breaker according to the invention, Figure 4 is an exploded perspective view showing the coupling of the main part of the wheel loader with a breaker according to the invention, Figure 5 is provided with a breaker according to the invention Figure 6 is a cross-sectional view showing the operating state of the loader part in the main parts of the wheel loader, Figure 6 is a cross-sectional view showing the operation state of the breaker part in the main parts of the wheel loader with a breaker according to the present invention, Figure 7 is provided with a breaker according to the present invention Hydraulic circuit diagram showing the operating state of the loader loader of the wheel loader, Figure 8 is a hydraulic circuit diagram showing the operating state of the breaker of the wheel loader with a breaker according to the invention, Figure 9 is a control of the wheel loader with a breaker according to the invention It is a process chart which shows a method.

As shown in Figures 3 to 9, the wheel loader equipped with a breaker of the present invention is a loading unit 110 formed to operate the boom 117 formed on the front side while driving to the wheel 114, up and down, left and right, and A breaker unit 120 for crushing a rock by combining the breaker body 122 having the chisel 121 formed with the hatch plate 123 on the boom 117 of the loading unit 110 so as to be perpendicular to the ground, and the loading unit Distributing part forming the distribution valve 131 to operate the boom 117 of the loading unit 110 up, down, left and right while crushing the rock by the chisel 121 by alternately distributing the hydraulic pressure to the 110 and the breaker part 120. It comprises 130.

The loading unit 110 is configured to supply the hydraulic pressure supplied from the hydraulic tank 119 to increase the pressure in the main pump 112 and the steering pump 113, while controlling the hydraulic pressure generated in the main pump 112 Forming and connecting the control valve 111 to supply, and formed in front and rear in the form of wheels to form a wheel 114 to be driven while rotating, and to form a boom 117 of the arm shape to convey to the front side up, down, left and right, At the lower part of the boom 117, the shanghai conveying part 116 operating up and down and the steering part 115 feeding from side to side are formed, and the plate-shaped coupling member 118 is formed at the front end of the boom 117 to move up and down. Configure it to move from side to side.

The breaker unit 120 has a hatch plate 123 having a reinforcing member 124 formed on an inclined portion at an angle perpendicular to the ground on the coupling member 118 formed at the tip of the boom 117 of the loading unit 110. The chisel 121 is coupled to the lower portion of the hatch plate 123 and formed on the breaker body 122 to form a connection plate 125 at a right angle with the ground to crush the crushed material by the impact.

The distribution unit 130 is connected to the main pump 112 and the steering pump 113 of the loading unit 110 in accordance with the operation of the pilot valve 132 to switch the direction of the hydraulic pressure supply pipe 134 ) Is connected to the hydraulic pressure supply port (P), the control valve 111 of the loading unit 110 and the control valve supply port (A) connected to the control hydraulic pressure supply pipe 135, the hydraulic pressure of the breaker unit 120 A breaker supply port B connected to the supply side and the breaker hydraulic supply pipe 136 and a breaker discharge port T connected to the hydraulic discharge side and the breaker hydraulic discharge pipe 137 are formed to distribute or supply hydraulic pressure to distribute or distribute the valve. Alternately at 131, the hydraulic pressure is supplied to and discharged from the breaker unit 120 and the loading unit 110, and a relief valve 133 is formed on one side to prevent excessive output, and the drain drained according to the change in the flow rate therein. Forming tube 138 It is configured to operate by supplying alternating hydraulic pressure.

Thus, look at the control method of the wheel loader having a breaker of the present invention configured as follows.

First, the lower end of the loading part 110, the boom 117 is formed to form a wheel 114 to run in the form of wheels and to be transported up and down in the shanghai transport section 116 to the front and left and right in the steering section 115 The breaker part 120 to the loading part 110 by coupling the hatch plate 123 to which the breaker body 122 of the breaker part 120 having the chisel 121 formed to be perpendicular to the ground to the coupling member 118. In the step of mounting the breaker (S1) for mounting the breaker body 122 is formed with the chisel 121 is mounted on the boom 117 of the loading unit 110.

Thus, in the breaker mounting step (S1) in the state in which the breaker unit 120 is mounted on the loading unit 110, the hydraulic pressure of the hydraulic tank 119 via the suction filter 119a through the main pump 112 and the steering pump 113 The pressure is multiplied by) to supply the hydraulic pressure through the hydraulic pressure supply step (S2) to supply to the hydraulic pressure supply port (P) of the distribution unit 130 through the hydraulic pressure supply pipe (134).

Such, the hydraulic pressure supplied in the hydraulic pressure supply step (S2) is the hydraulic pressure supply port (P), the control valve supply port (A), the breaker supply port (B), the breaker discharge port (T) is formed to the pilot valve 132 Control hydraulic pressure supply pipe 135 and breaker connected to the control valve 111 of the loading unit 110 while supplying the hydraulic pressure supplied from the hydraulic pressure supply pipe 134 while preventing the overpower from the distribution valve 131 to the relief valve 133 The hydraulic pressure is distributed and controlled in the hydraulic pressure distribution pipe 136 connected to the breaker hydraulic supply pipe 136 and the hydraulic breaker discharge pipe 137 connected to each other so as to control each operation.

As described above, the breaker supply port (B) and the breaker hydraulic discharge pipe connected to the breaker hydraulic pressure supply pipe 136 to operate the distribution valve 131 of the distribution unit 130 in the hydraulic distribution control step (S3). When the pilot valve 132 is opened to the breaker discharge port T connected to the breaker body 137, the breaker body is opened via the breaker hydraulic supply pipe 136 and the breaker supply port B. Breaker operation for crushing rock while being introduced into 122 and crushing the chisel 121 downward to crush the crushed matter and discharged at the time of discharge through the breaker hydraulic discharge pipe 137 and the breaker discharge port T The breaker part 120 is operated through step S4.

In addition, the pilot valve 132 to the control valve supply port (A) connected to the control hydraulic pressure supply pipe 135 to operate the distribution valve 131 of the distribution unit 130 in the hydraulic distribution control step (S3). When opened by the drive of), the hydraulic pressure supplied from the hydraulic supply port P is supplied to the shanghai sending section 116 and the steering section 115 under the control of the control valve 111, and the cooling section 119b and the recovery filter after operation. The load unit 112 is operated in the loading unit operating step (S5) of working while operating the boom 117 equipped with the breaker unit 120 up, down, left and right through the hydraulic tank 119 again through (119c). .

Thus, the alternating control step (S6) for controlling the breaker operation step (S4) and the loading unit operation step (S5) to be operated while alternating as necessary according to the operation of the distribution valve 131 of the distribution unit 130. It is configured to carry out loading and braking at the same time with one machine.

As described above, the wheel loader equipped with the breaker according to the present invention and the control method thereof include a wheel loader equipped with a boom for transporting up, down, left and right by supplying hydraulic pressure to the shanghai sending unit and the steering unit while traveling at the rotation of the wheel, the breaker at the tip of the boom. The hydraulic pressure from the hydraulic pump and the steering pump is maintained at the relief valve while supplying and discharging to the control valve and breaker that supply hydraulic pressure to the steering unit and the shanghai conveyer which move the boom up, down, left and right by the operation of the pilot valve. As the distribution valve which continuously distributes to the connecting pipe side is operated to distribute hydraulic pressure to the breaker and the loading unit alternately, the breaker is mounted on the wheel loader by moving the breaker-mounted boom up, down, left and right while breaking the rock with the breaker. Continuously traveling in a state without disconnection of hydraulic supply Since the crushing work is carried out while the wheel loader is equipped with a breaker as necessary, the crushing work is performed to expand the utilization capacity of the equipment, thereby reducing the construction cost while reducing the construction period.

In addition, the hatch plate is coupled to the boom's front end so that the breaker is mounted in a form perpendicular to the crushed material that is crushed by the shank and the steering wheel at the front of the wheel loader. The breaker is mounted to be perpendicular to the ground to increase the efficiency of the crushing operation.

In addition, by forming a reinforcing member on the right angle of the inclined surface side of the hatch plate formed so that the coupling member and the breaker are coupled to the boom of the wheel loader, to suppress the transmission of vibration generated while hitting the debris by the descending of the chisel to improve the life of the equipment Provide an effect.

In addition, in general, by simply mounting the breaker to the wheel loader that transports heavy materials while moving it up, down, left, and right, it is possible to extend the utility range of the equipment and to perform various tasks with one equipment, which shortens the construction period and maintains the maintenance cost. Provides savings.

Claims (2)

The control valve 111 is configured to supply the hydraulic pressure supplied from the hydraulic tank 119 to increase the pressure in the main pump 112 and the steering pump 113, and to supply the hydraulic pressure generated from the main pump 112 while controlling the hydraulic pressure. Is formed in the front and rear in the form of a wheel to form a wheel 114 to be driven while rotating, and to form a boom 117 of the female shape to operate up, down, left and right in the front side, and in the lower portion of the boom 117 Forming a steering unit 115 to operate left and right and the Shanghai transport unit 116 to operate up and down, and forming a plate-like coupling member 118 at the tip of the boom 117, the loading unit 110 moving up, down, left and right while driving )Wow, Coupling the hatch plate 123 having the reinforcing member 124 formed on the inclined portion at an angle perpendicular to the ground to the coupling member 118 formed at the tip of the boom 117 of the loading unit 110, the hatch plate ( Chisel 121 is formed at the lower portion of the 123 to the breaker body 122 is formed in the connection plate 125 at a right angle with the ground breaker unit 120 for crushing the crushed object by the blow, The hydraulic pump is connected to the hydraulic supply pipe 134 according to the operation of the pilot valve 132 that switches the direction of the valve to the hydraulic pressure supplied to the main pump 112 and the steering pump 113 of the loading unit 110. Hydraulic supply port (P) to be supplied, the control valve 111 of the loading unit 110 and the control valve supply port (A) connected to the control hydraulic pressure supply pipe (135), the hydraulic supply side and the breaker hydraulic supply pipe of the breaker unit 120 ( Breaker supply port (B) connected to 136 and the breaker discharge port (T) connected to the hydraulic discharge side and the breaker hydraulic discharge pipe 137 is formed to alternately in the distribution valve 131 formed to distribute or supply the hydraulic pressure A relief valve 133 is formed to supply and discharge hydraulic pressure to the breaker unit 120 and the loading unit 110, and to prevent excessive output to one side, and to form a drain pipe 138 to be drained according to a change in the flow rate therein. By hydraulic Equipped with a having to comprise a distributor (130) configured to operate by supplying the wheel loader characterized in the breaker. Ground formed in the lower portion of the front end of the loading section 110, the boom 117 formed to form a wheel 114 to run in the form of wheels and to be transported up and down in the shanghai transport section 116 to the front and left and right in the steering section 115 The breaker unit 120 is connected to the loading unit 110 by coupling the hatch plate 123 to which the breaker body 122 of the breaker unit 120 having the chisel 121 formed to be perpendicular to the coupling member 118. Breaker mounting step (S1) for mounting; In the breaker mounting step (S1), the hydraulic pressure of the hydraulic tank 119 is supplied to the loading unit 110 via the suction filter 119a through the main pump 112 and the steering pump 113. Hydraulic pressure supply step (S2) for doubling the pressure in the supply through the hydraulic supply pipe 134 to the hydraulic supply port (P) of the distribution unit 130; The hydraulic pressure supplied from the hydraulic pressure supply step (S2) is provided with a hydraulic pressure supply port (P), a control valve supply port (A), a breaker supply port (B), and a breaker discharge port (T) to operate as a pilot valve 132. Control the hydraulic pressure supply pipe 135 and the breaker connected to the control valve 111 of the loading unit 110 while supplying the hydraulic pressure supplied from the hydraulic supply pipe 134 while preventing over-output from the distribution valve 131 to the relief valve 133 A hydraulic pressure distribution control step (S3) for controlling the breaker hydraulic supply pipe 136 and the breaker hydraulic discharge pipe 137 connected to the unit 120 to be operated respectively; The breaker supply port B and the breaker hydraulic discharge pipe 137 connected to the breaker hydraulic supply pipe 136 to operate the distribution valve 131 of the distribution unit 130 in the hydraulic distribution control step S3. When the pilot valve 132 is opened to the breaker discharge port T connected to the breaker body 122, the hydraulic pressure supplied from the hydraulic pressure supply port P passes through the breaker hydraulic supply pipe 136 and the breaker supply port B. Breaker operation step of crushing the rock while being discharged through the breaker hydraulic discharge pipe 137 and the breaker discharge port (T) to crush the crushed matter by lowering and hitting the chisel 121 down to the lower (S4) )Wow ; In the hydraulic pressure distribution control step (S3), the pilot valve 132 connects the control valve supply port A connected to the control hydraulic pressure supply pipe 135 to operate the distribution valve 131 of the distribution unit 130 and the loading unit 110. When opened by the driving of the hydraulic pressure supplied from the hydraulic supply port (P) is supplied to the shanghai transport section 116 and the steering section 115 under the control of the control valve 111 and after the cooling unit (119b) and the recovery filter ( Through the loading unit operating step (S5) to recover while operating the boom 117 equipped with the breaker unit 120 in the up and down, left and right through the 119c through the hydraulic tank 119 again, It includes an alternating control step (S6) for controlling the breaker operation step (S4) and the loading unit operation step (S5) to operate while alternating as necessary according to the operation of the distribution valve 131 of the distribution unit 130. Control method of a wheel loader with a breaker, characterized in that configured to.

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