KR102467902B1 - Hydraulic supply device for rotary quick coupler - Google Patents

Abstract

The present invention relates to a hydraulic pressure supply apparatus for a rotary quick coupler, which comprises: a first hydraulic pressure line arranged on a fixing block of a main body installed on an arm unit of a heavy equipment, and having a hydraulic pressure passing therethrough; a second hydraulic pressure line arranged on a driving block rotatably connected to the fixing block, and having the hydraulic pressure supplied from the first hydraulic pressure line passing therethrough; and a third hydraulic pressure line coupled to the driving block, arranged on a rotary plate installed on a rotary block rotatably connected to the main body, and having the hydraulic pressure supplied from the second hydraulic pressure line passing therethrough. The second hydraulic pressure line and the third hydraulic pressure line can be connected to each other completely just by coupling the driving block to the rotary plate. The present invention is able to reduce the time and cost required for installation.

Description

Hydraulic supply device for rotary quick coupler {Hydraulic supply device for rotary quick coupler}

The present invention relates to a hydraulic pressure supply device for a rotary quick coupler, and more particularly, hydraulic pressure supplied through a first hydraulic line of a fixed block is driven to a rotating plate so that it can be supplied to a supply pipe through a driving block and a rotating plate Since the third hydraulic line connected to the second hydraulic line of the block is provided, the installation structure of the hydraulic supply device is simplified because the installation of the hydraulic tube installed between the mounting protrusion and the rotating plate where the connector of the supply pipe is installed can be omitted. It relates to a hydraulic supply device for a rotary quick coupler that can reduce the time and cost required for installing the supply device.

In general, in heavy construction and civil engineering equipment such as excavators, work tools such as breakers, buckets, and crushers are used to dig the ground, treat soil dug out from the ground, or crush rocks, etc. These work tools are They are used interchangeably depending on the content of the work.

Conventionally, in a device for coupling working tools, a coupler is coupled with a pair of coupling pins to the front end of an arm of an excavator, a fixed hook is provided on one side of the coupler, and a movable hook is rotatably coupled to the other side, and the movable hook is inside the coupler. It is configured to rotate by the operation of the mounted cylinder.

In addition, a fixing pin formed on the upper side of the working tool is inserted into the fixing hook and the movable hook so that the coupling is made.

Therefore, the coupler coupled to the tip of the arm stand is brought close to the upper side of the work tool, a fixing pin is inserted into the fixing hook, and another fixing pin is coupled to the movable hook on the other side. The movable hook is opened and closed by the operation of the cylinder to The fixing pin is engaged.

However, this conventional technology is made by a cylinder operated by the action of hydraulic pressure as a means of operating the movable hook, so it is convenient to combine or separate work tools from the driver's seat, but it is difficult to supply hydraulic pressure to the inside of the coupler to the cylinder. There were inherent problems such as complexity of the device and increase in cost due to the need for a hydraulic line.

In order to solve the above problems, a quick coupler for an excavator has been developed, and in the quick coupler for an excavator according to the prior art, hydraulic pressure for driving the movable hook of the quick coupler and hydraulic pressure for driving an attachment installed in the quick coupler are supplied. A hydraulic supply device for supplying hydraulic pressure provided along the arm to a quick coupler or attachment is installed.

The background art of the present invention is disclosed in Korean Patent Publication No. 10-2009-0118331 (published on November 18, 2009, title of the invention: quick coupler for excavator).

In the hydraulic supply device according to the prior art, when the quick coupler is applied to a rotary quick coupler divided into a main body and a rotary block, a fixed block and a driving block are provided to provide hydraulic pressure from a main body rotatably connected to a rotary block. Since a separate hydraulic tube and connector are installed to connect the hydraulic pressure supplied through the driving block to the attachment, the installation structure of the hydraulic line is complicated and the hydraulic tube and Since the connector must be installed, it is difficult to promote the convenience of the operator and to reduce the time and cost required for installing the hydraulic supply device.

Therefore, there is a need to improve this.

In the present invention, since the third hydraulic line connected to the second hydraulic line of the driving block is provided on the rotating plate so that the hydraulic pressure supplied through the first hydraulic line of the fixed block can be supplied to the supply pipe through the driving block and the rotating plate, the supply pipe The installation structure of the hydraulic supply device is simplified because the installation of the hydraulic tube installed between the mounting protrusion and the rotating plate where the connector is installed can be omitted, and the time and cost required for installing the hydraulic supply device can be reduced. Its purpose is to provide a hydraulic supply device for couplers.

The present invention is provided in the fixed block of the main body installed on the arm of the heavy equipment, the first hydraulic line through which the hydraulic pressure passes; a second hydraulic line provided in a driving block rotatably connected to the fixed block and through which hydraulic pressure supplied through the first hydraulic line passes; and a third hydraulic line coupled to the driving block, provided on a rotation plate installed on a rotation block rotatably connected to the main body, and through which hydraulic pressure supplied through the second hydraulic line passes, wherein the drive It is characterized in that the connection work of the second hydraulic line and the third hydraulic line is completed only by the operation of coupling the block to the rotation plate.

In addition, the third hydraulic line of the present invention includes a connecting hole formed in a stepped groove of the rotating plate into which the driving block is inserted; a horizontal line branching from the connection hole in a lateral direction along the rotating plate; and a vertical line bent from the horizontal line and extending to the mounting protrusion of the rotating plate.

In addition, the mounting protrusion of the present invention is characterized in that a mounting hole portion is formed so that a connector connecting the vertical line and the supply pipe is installed, and the vertical line is connected to communicate with the mounting hole portion.

In addition, the connection hole part, the horizontal line and the vertical line of the present invention are each provided with a pair, and the connection hole part, the horizontal line and the vertical line are provided on one side and the other side of the rotating plate to connect the hydraulic supply line and It is characterized by forming a recovery line.

Hydraulic supply device for a rotary quick coupler according to the present invention, a first hydraulic line connected from a fixed block to a driving block and a third hydraulic line connected to the second hydraulic line are provided on a rotating plate to which the driving block is connected, Since the third hydraulic line extends to the mounting protrusion provided on the rotating plate, it is possible to supply hydraulic pressure to the connector installed on the mounting protrusion without a separate hydraulic tube, reducing the number of parts of the hydraulic supply device that supplies hydraulic pressure to the attachment and making it easier for the operator. It is possible to install a hydraulic supply device, and there is an advantage of reducing the time and cost required for installation of a hydraulic supply device for supplying hydraulic pressure to an attachment.

In addition, in the hydraulic supply device for a rotary quick coupler according to the present invention, a connection hole portion connected to the second hydraulic line is formed in the stepped groove portion of the rotation plate to which the driving block is connected, and a horizontal line extending from the connection hole portion to the mounting protrusion And since the vertical line is provided to form the third hydraulic line, the third hydraulic line connected from the driving block to the mounting protrusion can be installed only by inserting and connecting the driving block into the stepped groove of the rotating plate to promote operator convenience. It has the advantage of being able to more effectively reduce the time and cost required for installing the hydraulic supply device.

1 is a perspective view of a quick coupler in which a hydraulic supply device according to an embodiment of the present invention is installed.
2 is a perspective view showing a main pin fixing device of a quick coupler in which a hydraulic supply device according to an embodiment of the present invention is installed.
3 is an exploded perspective view showing a main pin fixing device of a quick coupler in which a hydraulic supply device according to an embodiment of the present invention is installed.
Figure 4 is a cross-sectional view showing a gap adjustment unit, a main pin fixing unit and a driving unit of a quick coupler in which a hydraulic supply device according to an embodiment of the present invention is installed.
Figure 5 is a perspective view showing a fixed block anti-rotation portion of the quick coupler to which the hydraulic supply device is installed according to an embodiment of the present invention.
Figure 6 is an exploded perspective view showing a fixed block anti-rotation portion of the quick coupler to which the hydraulic supply device is installed according to an embodiment of the present invention.
Figure 7 is an exploded perspective view showing the hydraulic supply of the quick coupler according to an embodiment of the present invention.
8 is an enlarged view showing a hydraulic pressure supply unit of a quick coupler according to an embodiment of the present invention.
9 is an exploded cross-sectional view showing a hydraulic supply unit of a quick coupler according to an embodiment of the present invention.

Hereinafter, one embodiment of a hydraulic supply device for a rotary quick coupler according to the present invention will be described with reference to the accompanying drawings.

In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator.

Therefore, definitions of these terms will have to be made based on the content throughout this specification.

1 is a perspective view of a quick coupler in which a hydraulic supply device according to an embodiment of the present invention is installed, and FIG. 2 is a main pin fixing device of a quick coupler in which a hydraulic supply device according to an embodiment of the present invention is installed. A perspective view, and Figure 3 is an exploded perspective view showing a main pin fixing device of a quick coupler in which a hydraulic supply device according to an embodiment of the present invention is installed.

In addition, Figure 4 is a cross-sectional view showing a gap adjusting unit, a main pin fixing unit and a driving unit of a quick coupler in which a hydraulic pressure supply device is installed according to an embodiment of the present invention, Figure 5 is a hydraulic pressure according to an embodiment of the present invention A perspective view showing an anti-rotation part of a fixed block of a quick coupler in which a supply device is installed, and FIG. 6 is an exploded perspective view showing an anti-rotation part of a fixed block of a quick coupler in which a hydraulic supply device according to an embodiment of the present invention is installed.

In addition, Figure 7 is an exploded perspective view showing the hydraulic supply of the quick coupler according to an embodiment of the present invention, Figure 8 is an enlarged view showing the hydraulic supply of the quick coupler according to an embodiment of the present invention, Figure 9 Is an exploded cross-sectional view of the hydraulic supply unit of the quick coupler according to an embodiment of the present invention.

1 to 9, the quick coupler according to an embodiment of the present invention is rotatably installed on a heavy equipment arm, and has a main body 10 having a connection plate 12, and rotation in the main body 10 Possibly connected, various attachments are detachably connected, the rotation block 30 having a rotation plate 32, and the connection plate 12 to provide power for the rotation block 30 to rotate in the forward or reverse direction And a driving unit 34 provided between the rotation plate 32, a hydraulic pressure supply unit 90 for supplying hydraulic pressure supplied to the main body 10 along the arm to the rotary block 30 or the attachment, and to the main body 10 The main pin 14 installed so that the arm or smart tongs are rotatably connected, and the main pin 14 prevents the main pin 14 from idling from the main body 10 so that the main body 10 or smart tongs are malfunctioning and rotated from the arm A fixing block ( 52) Includes an anti-rotation part 80.

Therefore, in this embodiment, the movable hook is driven by the hydraulic pressure supplied to the rotary block 30 through the main body 10 through the hydraulic pressure supply unit 90, and the attachment can be connected to the rotary block 30, and the driving unit ( As the rotating block 30 is rotated by the operation of 34), the attachment is driven so that various tasks can be performed.

At this time, the attachment is driven by the hydraulic pressure transmitted to the attachment through the hydraulic connection unit 50, so that various tasks such as digging the ground or carrying transfer objects such as soil, gravel, and sand can be performed.

In addition, by driving the smart tongs connected to the main pin 14 of the main body 10, it is possible to mount or crush work objects of various sizes. As a result, it is possible to prevent the main pin 14 from being rotated from the main body 10 by the fixing part 70 of the main pin 14 .

The fixing part 70 of the main pin 14 of this embodiment is integrally coupled to the main body 10, and the fixing piece 72 disposed to surround a part of the main pin 14 and the fixing piece 72 Assembled and arranged to surround the remaining part of the main pin 14, the fastening piece 74 detachably coupled to the body 10, and the fastening piece 74 to be detachably coupled to the body 10 A detachable part 76 is included.

Therefore, when fixing the main pin 14, the fixing piece 72 is inserted into the gap between the outer wall of the main body 10 and the stopper 14b of the main pin 14 to cover a portion of the circumferential surface of the main pin 14 , and insert the fastening piece 74 into the gap between the outer wall of the main body 10 and the stopper 14b of the main pin 14 so as to surround the rest of the main pin 14 to secure the fixing piece 72 and Assembling the fastening piece 74 and coupling the detachable part 76 to the fastening piece 74 to fix the fastening piece 74 to the main body 10, and at the same time, the fastening piece 74 to the fixing piece 72 While maintaining the assembled state, the rotational motion of the main pin 14 is restrained.

The fixing piece 72 of this embodiment is disposed while maintaining a distance from the first seating groove 72a into which a portion of the main pin 14 is inserted and the first seating groove 72a, and is attached to the fastening piece 74. It includes a first assembly protrusion 72b to be inserted, and a first coupling step 72c provided between the first assembly protrusion 72b and the first seating groove 72a.

In addition, the fastening piece 74 of this embodiment is disposed at both ends of the second seating groove 74a and the second seating groove 74a into which the rest of the main pin 14 is inserted, and the first coupling step 72c ), and a second coupling step 74c provided on the outside of the second assembly projection 74b and on which the first assembly projection 72b is seated.

Therefore, when the fixing piece 72 is inserted into the gap between the outer wall of the main body 10 and the stopper 14b of the main pin 14 so that the fixing piece 72 is in close contact with a portion of the circumferential surface of the main pin 14, the main pin ( A part of the circumferential surface of 14) is inserted into and adhered to the first seating groove 72a, and the fastening piece 74 is attached to the outer wall of the main body 10 and the main pin 14 so as to surround the rest of the circumferential surface of the main pin 14. When inserted into the gap between the stoppers 14b, the first assembling protrusion 72b is seated on the second coupling step 74c, and the second assembling protrusion 74b is seated on the first coupling step 72c. 72) and the fastening piece 74 are assembled so as to be connected to each other.

Then, when the other end of the fastening piece 74 is coupled to the main body 10 by the detachable part 76, both the circumferential surface of the main pin 14 is restrained by the fixing piece 72 and the fastening piece 74. Therefore, it is possible to prevent the main pin 14 from being idling from the main body 10 .

At both ends of the main pin 14, a wider stopper 14b is formed compared to the cross-sectional area of the main pin 14, so the end of the smart tongs is rotatably installed in the gap between the outer wall of the main body 10 and the stopper 14b , The fixing piece 72 and the fastening piece 74 are interposed in the gap between the smart tongs and the main body 10, and the fixing piece 72 and the fastening piece 74 are assembled.

The fixing piece 72 of this embodiment is inserted into the gap between the outer wall of the main body 10 and the stopper 14b to surround a portion of the circumferential surface of the main pin 14, and then integrally with the outer wall of the main body 10 by welding. The fastening piece 74 is inserted between the outer wall of the main body 10 and the stopper 14b to be assembled with the fixing piece 72, and then the detachable part 76 is fastened to the fastening piece 74 and the main body 10 Thus, the fastening piece 74 is integrally coupled to the body 10.

The detachable part 76 of this embodiment is provided on one side of the fastening piece 74 and penetrates the fastening hole 76a through which the fastening member 76b coupled to the main body 10 passes, and the fastening hole 76a. It includes a fastening member (76b) coupled to the main body (10).

A second seating groove 74a, a second assembly protrusion 74b, and a second coupling step 74c are formed at one end of the fastening piece 74, and a fastening hole 76a is formed at the other end of the fastening piece 74. Therefore, when the fastening member 76b is inserted into the fastening hole 76a and fastened to the main body 10, the fastening piece 74 is coupled to the main body 10, and the assembly state of the fixing piece 72 and the fastening piece 74 is maintained. will keep

In the fixing piece 72 and the fastening piece 74 of this embodiment, the first assembling protrusion 72b and the second assembling protrusion 74b are constrained by the first coupling step 72c and the second coupling step 74c. Since it is assembled as much as possible, it is possible to maintain the state in which the fixing piece 72 and the fastening piece 74 are connected without a separate connection member, so that the assembly of the fixing piece 72 and the fastening piece 74 can be easily achieved, and the fixing piece 72 And the time and cost required for assembling the fastening piece 74 can be reduced.

As described above, in this embodiment, since the idle rotation of the main pin 14 can be prevented by simple assembly of the fixing piece 72 and the fastening piece 74, the main body 10 is rotated from the arm stand or the smart tongs When rotating, it is possible to prevent the main pin 14 from being idling from the main body 10, thereby preventing malfunction and damage caused by idling of the main pin 14.

In addition, in this embodiment, while the rotation block 30 connected to the main body 10 is rotated in the forward or reverse direction by the operation of the driving unit 34, various operations are implemented. At this time, it is fixed to the main body 10 Since the fixing block 52, which serves as a rotating shaft of the rotating block 30, is provided with a fixing block 52 and an anti-rotation part 80 to prevent the main body 10 from being idling, the rotational motion of the rotating block 30 As a result, it is possible to prevent malfunctions occurring while the fixing block 52 is idling.

The anti-rotation part 80 of the fixing block 52 of the present embodiment is provided with a hydraulic line so that the hydraulic pressure supplied to the main body 10 is connected, and the fixing block 52 installed on the main body 10, and the fixing block ( 52), the restraining member 82 coupled to the main body 10 to be disposed adjacent to the main body 10, and the restraining member 82 and the fixing block 52 are connected to prevent the fixing block 52 from rotating from the main body 10 It includes a restraint fixing unit that

The fixing block 52 of this embodiment is formed in the shape of a long cylinder in the vertical direction, and the cross-sectional area of the upper portion is formed to be wider to form a shape similar to the shape of a bolt. ) is formed, a connecting member is installed in each hydraulic hole 92a to connect a plurality of hydraulic tubes, and the hydraulic pressure supplied through the hydraulic tube and the connecting member is a first hydraulic pressure formed inside the fixing block 52 It is supplied to the lower side of the fixing block 52 along the line 92, and provides hydraulic pressure to the drive block 54 connected to the lower portion of the fixing block 52.

The fixing block 52 formed as described above extends downward through the connecting plate 12, and the upper portion of the fixing block 52 is attached to the connecting plate 12 by the restraining member 82 and the restraining fixing part. It is fixed, and the driving block 54 is rotatably inserted into the lower part of the fixing block 52, and the driving block 54 is coupled to the rotation plate 32 and integrally connected to the rotation block 30.

Therefore, the hydraulic pressure supplied to the fixed block 52 is supplied to the rotating plate 32 via the driving block 54 by the hydraulic pressure supply unit 90, and is supplied to the rotating block along the supply pipe 99 connected to the rotating plate 32. Hydraulic pressure is supplied to an attachment detachably installed in the cylinder provided in (30) or the rotation block (30).

As described above, the inflow is supplied along the fixed block 52 fixed to the main body 10 and the driving block 54 installed on the rotary block 30 by the operation of the hydraulic pressure supply unit 90, and the drive unit 34 Even if the rotary block 30 and the driving block 54 are rotated around the fixed block 52 by the operation of ), hydraulic pressure is supplied from the fixed block 52 through the driving block 54 and the rotating plate 32. It is possible to proceed with the driving of the cylinder installed on the rotation block 30 and the driving of the attachment.

As described above, while the rotation block 30 is rotated in the forward or reverse direction around the fixed block 52, the fixed block 52 can be idling from the main body 10. In this embodiment, the fixed block 52 ) Prevents the fixing block 52 from being idling from the main body 10 by the action of the anti-rotation part 80, thereby preventing the loss of hydraulic pressure due to the idling of the fixing block 52, the fixing block 52, and the connection plate 12 ) or deformation or damage of the rotation block 30 can be prevented.

The restraining fixing part of this embodiment includes a restraining groove 84 formed in the fixing block 52, a restraining protrusion 86 formed to protrude from the restraining member 82 so as to be inserted into the restraining groove 84 and engaged, It includes a restraining bolt 88 that penetrates the restraining member 82 and is coupled to the main body 10 to couple the main body 10 and the restraining member 82 integrally.

Therefore, after the restraining member 82 is seated around the fixing block 52 so that the restraining protrusion 86 is inserted into the restraining groove 84, the restraining member 82 is fixed to the connecting plate 12 with the restraining bolt 88. When this is done, the rotational motion of the fixing block 52 is restrained while the restraining member 82 is integrally fixed to the connecting plate 12, so that the fixing block 52 can be prevented from being idling from the main body 10. .

The restraining protrusion 86 of the present embodiment includes a first protrusion 86a protruding from one end of the restraining member 82 toward the center of the fixing block 52, and a portion of the fixing block 52 from the other end of the restraining member 82. It includes a second protrusion 86b protruding toward the center and a third protrusion 86c protruding from the central portion of the restraining member 82 toward the center of the fixing block 52 .

In addition, the restraining groove 84 of this embodiment includes a first groove 84a formed in the fixing block 52 so that the first protrusion 86a is inserted, and a fixing block 52 so that the second protrusion 86b is inserted. ) and a third groove 84c formed in the fixing block 52 so that the third protrusion 86c is inserted.

As described above, the first groove portion 84a, the second groove portion 84b, and the third groove portion 84c are formed at regular intervals on the circumferential surface of the fixing block 52, and the first groove portion 84a, The restraining member 82 formed with the first protrusion 86a, the second protrusion 86b, and the third protrusion 86c inserted into the second groove portion 84b and the third groove portion 84c is attached to the restraining bolt 88. Since it is integrally coupled to the connecting plate 12 by the fixing block 52 is coupled to the connecting plate 12 in a state in which the rotational motion is constrained by the restraining member 82, the fixing block 52 from the main body 10 It can prevent idling.

In addition, in this embodiment, a plurality of restraining protrusions 86 composed of first protrusions 86a to third protrusions 86c are respectively constrained grooves 84 composed of first grooves 84a to third grooves 84c. ) Since it is inserted into the restraining member 82, it is possible to effectively prevent the fixing block 52 from idling, so that the fixing block 52 can be prevented from idling from the main body 10 more effectively.

Since the restraining member 82 of this embodiment is formed in a curved shape so that it can be disposed adjacently while surrounding the circumferential surface of the fixing block 52, the first formed at both ends and the center of the restraining member 82 formed in a curved shape. The protrusion 86a, the second protrusion 86b, and the third protrusion 86c extend toward the center of the fixing block 52, and the first groove 84a and the second groove 84b are formed in the fixing block 52. ) And when the first protrusion 86a, the second protrusion 86b and the third protrusion 86c are inserted into the third groove 84c, the first protrusion 86a, the second protrusion 86b and the third protrusion ( Since 86c) is inserted extending toward the center of the fixing block 52, rotation of the fixing block 52 can be perfectly prevented.

In addition, this embodiment offsets the distance between the connecting plate 12 and the driving part 34 so that the driving part 34 flows from the main body 10 by the gap formed between the main body 10 and the driving part 34. Since the gap adjustment unit 12a is provided to prevent the rotation type quick coupler from being driven for a long period of time, when a gap is formed between the main body 10 and the driving unit 34, the operator manipulates the gap adjustment unit 12a to move the main body 10 It is possible to prevent the driving unit 34 from moving from the main body 10 while offsetting the distance between the driving unit 34 .

The gap adjusting unit 12a of this embodiment is fastened with the adjusting bolt 12b fastened to the connecting plate 12 and the adjusting bolt 12b and closely adheres to the connecting plate 12 by the operation of the driving unit 34. It includes a nut member 12c that prevents the control bolt 12b from being rotated and moved from the connection plate 12 by the transmitted vibration.

Therefore, when the rotational quick coupler is driven for a long period of time and a gap is formed between the main body 10 and the driving part 34, the operator rotates the adjusting bolt 12b using a tool and moves the end of the adjusting bolt 12b to the driving part 34 Since it protrudes to the side, the adjusting bolt 12b is located in the gap between the connecting plate 12 and the driving part 34 and presses the ring plate 39 of the driving part 34 so that the driving part 34 moves forward toward the main body 10. Alternatively, backward flow can be prevented.

As described above, in the present embodiment, the fixing block 52 is prevented from idling by the restraining member 82 and the movement of the driving unit 34 toward the connecting plate 12 is prevented by the adjusting bolt 12b. While the quick coupler is driven for a long period of time, it is possible to prevent deformation or damage of the quick coupler caused by the movement of the fixed block 52 or the drive unit 34, thereby extending the life of the quick coupler, and the time required for maintenance of the quick coupler and cost savings.

In addition, the hydraulic pressure supply unit 90 of this embodiment is provided in the fixing block 52 of the main body 10 installed on the arm of the heavy equipment, and the first hydraulic line 92 through which the hydraulic pressure passes, and the fixing block 52 It is provided in the driving block 54 rotatably connected to the second hydraulic line 94 through which the hydraulic pressure supplied through the first hydraulic line 92 passes, and is coupled with the driving block 54, and the main body ( 10) is provided on the rotating plate 32 installed on the rotating block 30 rotatably connected to the second hydraulic line 94, and includes a third hydraulic line 96 through which the hydraulic pressure supplied through the second hydraulic line 94 passes. .

Therefore, the hydraulic pressure supplied to the fixed block 52 is integrally formed on the rotating plate 32 along the first hydraulic line 92, the second hydraulic line 94, and the third hydraulic line 96 (97). ) is supplied to the mounting hole 98, it is possible to provide hydraulic pressure to the supply pipe 99 connected to the attachment through the connector 99a installed in the mounting hole 98.

Therefore, the operation of branching and installing a separate hydraulic tube from the flow path for supplying hydraulic pressure to the cylinder of the rotary block 30 along the second hydraulic line 94 is omitted, and the driving block 54 is attached to the rotary plate 32. The hydraulic pressure supplied to the fixing block 52 can be supplied to the attachment only by the installation operation.

The third hydraulic line 96 of this embodiment includes a connection hole 96a formed in the stepped groove 32a of the rotation plate 32 into which the driving block 54 is inserted, and a rotation plate ( 32) and a horizontal line 96b branching in the lateral direction, and a mounting protrusion 97 bent from the horizontal line 96b and formed integrally with the rotating plate 32 to extend to the mounting hole 98. It includes a vertical line (96c) to be.

Therefore, when the drive block 54 is installed on the rotation plate 32, the lower end of the drive block 54 is inserted into the stepped groove portion 32a formed in the center of the rotation plate 32, and the bottom surface of the drive block 54 When the connection line 94b of the formed second hydraulic line 94 is connected and arranged to communicate, the first hydraulic line 92 and the third hydraulic line 96 are connected to communicate.

The first hydraulic line 92 of this embodiment is connected to communicate with a plurality of hydraulic holes 92a provided on the upper part of the fixing block 52 and a hydraulic line extending downward from the hydraulic hole 92a, It includes a plurality of first hydraulic grooves (92b) formed on the circumferential surface of the fixing block (52).

In addition, the second hydraulic line 94 of this embodiment includes a plurality of second hydraulic grooves 94a formed on the inner wall of the driving block 54 to face the first hydraulic groove 92b, and a second hydraulic groove ( It includes a connection line 94b extending from 94a) and bent downward to extend toward the rotation plate 32.

The drive block 54 is formed in a cylindrical shape so that the lower portion of the fixing block 52 is rotatably inserted, and a plurality of second hydraulic grooves 94a are formed on the inner wall, so that the fixing block 52 is attached to the drive block 54. Even when the driving block 54 and the rotation block 30 are rotated in the inserted state, the first hydraulic line 92 and the second hydraulic groove 92b and the second hydraulic groove 94a are formed in a ring shape. The two hydraulic lines 94 remain connected.

Therefore, when hydraulic pressure is supplied through the plurality of hydraulic holes 92a formed in the fixing block 52, the first hydraulic groove 92b is filled and the second hydraulic groove is disposed opposite to the first hydraulic groove 92b ( Hydraulic pressure is transmitted along 94a) and supplied downward along the connection line 94b to the cylinder installed inside the rotary block 30 or to the attachment connected to the lower end of the rotary block 30, while the hydraulic pressure is transmitted to the attachment and the quick coupler It is possible to proceed with the detachable operation and the drive of the attachment.

Among the plurality of connection lines 94b formed in the drive block 54, a pair of connection lines 94b are connected to a hydraulic tube provided at the bottom of the drive block 54 and installed inside the rotation block 30 Hydraulic pressure is provided to the cylinder, and the remaining pair of connection lines 94b among the connection lines 94b are connected to communicate with the connection hole 96a exposed to the upper surface of the stepped groove portion 32a of the rotating plate 32. Hydraulic pressure is supplied to the attachment along the horizontal line 96b and the vertical line 96c.

In addition, a mounting hole 98 is formed in the mounting protrusion 97 of this embodiment so that a connector 99a connecting the vertical line 96c and the supply pipe 99 is installed, and the vertical line 96c is the mounting hole 98 ), so that the connectors 99a are installed in a pair of mounting holes 98 provided at both ends of the bottom surface of the rotating plate 32 to form hydraulic supply and recovery lines for driving the attachment.

As described above, the connection hole portion 96a, the horizontal line 96b, and the vertical line 96c of the present embodiment are provided one pair each, and the connection hole portion 96a and the horizontal line are provided on one side and the other side of the rotation plate 32. (96b) and a vertical line (96c) are provided to form a hydraulic supply line and a return line.

Therefore, in order to supply or recover the hydraulic pressure supplied to the attachment, a separate hydraulic tube branching from the hydraulic line supplied to the cylinder is not installed, and only the operation of coupling the driving block 54 to the rotating plate 32 is supplied to the attachment hydraulic pressure can be provided.

As a result, since the third hydraulic line connected to the second hydraulic line of the driving block is provided on the rotating plate so that the hydraulic pressure supplied through the first hydraulic line of the fixed block can be supplied to the supply pipe through the driving block and the rotating plate, A rotary quick coupler that simplifies the installation structure of the hydraulic supply device by omitting the installation of the hydraulic tube installed between the mounting protrusion and the rotating plate where the connector is installed, and can reduce the time and cost required for installing the hydraulic supply device. It is possible to provide a hydraulic supply device for

Although the present invention has been described with reference to an embodiment shown in the drawings, this is merely exemplary, and those skilled in the art can make various modifications and equivalent other embodiments therefrom. will understand

In addition, although the hydraulic supply device for the rotary quick coupler has been described as an example, this is only exemplary, and the hydraulic supply device of the present invention may be used in other products other than the hydraulic supply device for the rotary quick coupler.

Therefore, the true technical protection scope of the present invention should be determined by the claims below.

10: body 12: connection plate
12a: gap adjusting part 12b: adjusting bolt
12c: nut member 14: main pin
14a: restraining groove 14b: stopper
30: rotation block 32: connection plate
34: driving unit 36: motor
37: gear shaft 38: transmission gear
39: ring plate 50: hydraulic connection
52: fixed block 54: driving block
57: fastening bolt 70: fixing part
72: fixing piece 72a: second seating groove
72b: first assembly protrusion 72c: first coupling step
74: fastening piece 74a: second seating groove
74b: second assembly protrusion 74c: second coupling step
76: detachable part 76a: fastening hole part
76b: fastening member 80: anti-rotation part
82: restraining member 84: restraining groove
84a: first groove portion 84b: second groove portion
84c: third groove 86: restraining protrusion
86a: first projection 86b: second projection
86c: third projection 88: restraint bolt
90: hydraulic supply unit 92: first hydraulic line
92a: hydraulic hole 92b: first hydraulic groove
94: second hydraulic line 94a: second hydraulic groove
94b: connection line 96: third hydraulic line
96a: connection hole 96b: horizontal line
96c: vertical line 97: mounting protrusion
98: mounting hole 99: supply pipe
99a: connector

Claims (4)

A first hydraulic line provided in a fixing block of a main body installed on an arm stand of a heavy equipment and through which hydraulic pressure passes;
a second hydraulic line provided in a driving block rotatably connected to the fixed block and through which hydraulic pressure supplied through the first hydraulic line passes; and
A third hydraulic line coupled to the driving block and provided on a rotating plate installed on a rotating block rotatably connected to the main body, through which hydraulic pressure supplied through the second hydraulic line passes,
A mounting hole portion is formed in the mounting protrusion integrally formed on the rotating plate to install a connector connecting a vertical line constituting the third hydraulic line and a supply pipe, and the vertical line extends along the mounting protrusion to connect to the mounting hole portion. connected through,
The hydraulic pressure supplied to the fixing block 52 flows along the first hydraulic line 92, the second hydraulic line 94 and the third hydraulic line 96 to the mounting hole portion 98), it is possible to provide hydraulic pressure to the supply pipe 99 connected to the attachment through the connector 99a installed in the mounting hole 98,
Further comprising an anti-rotation part 80 for restraining the fixing block 52 to prevent the fixing block 52 from being idle and malfunctioning from the main body 10,
The anti-rotation part 80,
a restraining member 82 coupled to the main body 10 so as to be disposed adjacent to the fixing block 52; and
A restraining fixing part connecting the restraining member 82 and the fixing block 52 to prevent the fixing block 52 from rotating from the main body 10,
The restraining unit,
a restraining groove 84 formed in the fixing block 52;
a restraining protrusion 86 protruding from the restraining member 82 so as to be inserted into the restraining groove 84 and engage; and
A rotational quick coupler comprising a restraining bolt 88 coupled to the main body 10 through the restraining member 82 to integrally couple the main body 10 and the restraining member 82 Hydraulic supply device for
The method of claim 1, wherein the third hydraulic line,
a connecting hole formed in a stepped groove of the rotating plate into which the driving block is inserted;
a horizontal line branching from the connection hole in a lateral direction along the rotating plate; and
Hydraulic supply device for a rotary quick coupler, characterized in that it includes the vertical line that is bent from the horizontal line and extends to the mounting protrusion of the rotating plate.
delete According to claim 2,
The connection hole, the horizontal line, and the vertical line are each provided with a pair, and the connection hole, the horizontal line, and the vertical line are provided on one side and the other side of the rotation plate to form a hydraulic supply line and a recovery line. Hydraulic supply device for a rotary quick coupler, characterized in that.

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