KR20000019841A - Device for exchanging work equipment of excavator - Google Patents

Device for exchanging work equipment of excavator Download PDF

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Publication number
KR20000019841A
KR20000019841A KR1019980038126A KR19980038126A KR20000019841A KR 20000019841 A KR20000019841 A KR 20000019841A KR 1019980038126 A KR1019980038126 A KR 1019980038126A KR 19980038126 A KR19980038126 A KR 19980038126A KR 20000019841 A KR20000019841 A KR 20000019841A
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KR
South Korea
Prior art keywords
pin
excavator
link
work tool
work equipment
Prior art date
Application number
KR1019980038126A
Other languages
Korean (ko)
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KR100310003B1 (en
Inventor
한철호
Original Assignee
한철호
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Filing date
Publication date
Application filed by 한철호 filed Critical 한철호
Priority to KR1019980038126A priority Critical patent/KR100310003B1/en
Priority to PCT/KR1999/000447 priority patent/WO2000015912A2/en
Priority to AU53068/99A priority patent/AU5306899A/en
Publication of KR20000019841A publication Critical patent/KR20000019841A/en
Application granted granted Critical
Publication of KR100310003B1 publication Critical patent/KR100310003B1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3622—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a locking element acting on a pin
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3627—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a longitudinal locking element
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)

Abstract

PURPOSE: A device for exchanging a work equipment is provided to prevent an overturn of an excavator or a work equipment from colliding with a main body of the excavator while working. CONSTITUTION: An exchanger for a work equipment is composed of a front connection pin, a hydraulic pressure cylinder, and a rear connection pin. Also, an installation of the exchanger contains the steps of: forming each pin insertion groove(14) of a work equipment into a hook shape, fixing the work equipment(12) and a front arm(15) at the front connection pin(3) of a link(1) at the same time, and densely establishing the rear connection pin(5) at a main body of the work equipment(12). Therefore, this invention is for not changing a distance between the front arm(15) and the work equipment(12) by attaching the work equipment at the same position as the position where the work equipment is attached in an intrinsic excavator by easily equipping and taking off the work equipment(12) using the link(1). Thus, the establishment of the link enables to prevent a deterioration of an excavating force of the excavator as preventing an overturn of the excavator by the change while working.

Description

굴삭기의 작업기구 교환장치Exchanging Work Equipment of Excavator

본 발명은 굴삭기의 아암선단에 부착되는 각종 작업기구를 용이하게 탈착 및 부착시키는 굴삭기의 작업기구 교환장치에 관한 것으로서, 좀더 구체적으로는 굴삭기의 아암선단과 작업기구 사이에 작업기구 교환장치인 링크를 설치하더라도 아암선단과 작업기구 하단의 길이가 변화하지 않도록 함으로써 굴삭기의 굴삭력이 저하되는 것을 방지하도록 한 굴삭기의 작업기구 교환장치에 관한 것이다.The present invention relates to a work tool exchange device of an excavator for easily detaching and attaching various work tools attached to the arm tip of the excavator, and more specifically, a link that is a work tool exchange device between the arm tip of the excavator and the work tool. The present invention relates to an apparatus for exchanging a work tool of an excavator which prevents the excavator's digging force from being lowered by not changing the length of the arm tip and the work tool bottom.

일반적으로 굴삭기의 아암선단에는 버켓 및 브레이커등과 같은 각종 작업기구(어태치먼트)를 부착시켜 작업을 하게 되며, 그중에서도 특히 버켓을 부착하여 작업을 가장 많이하게 되는데 각종 작업기구를 용이하게 탈, 부착시키기 위하여 유압실린더가 설치된 링크를 널리 사용하고 있다.In general, the arm tip of an excavator attaches various work tools (attachments) such as buckets and breakers to work. Among them, the bucket is most often attached to the work, and in order to easily remove and attach various work tools. Hydraulic cylinder links are widely used.

즉, 굴삭기의 아암선단에 작업기구를 연결핀으로 직접 탈, 부착시킬 경우에는 굴삭기 조정사 이외에 2-3명의 보조원이 무거운 해머나 쇠파이프 등으로 연결핀을 가격하고, 조종사는 굴삭기를 조종하여 핀의 삽입 및 이완이 용이하도록 하여 작업기구를 아암선단에 탈, 부착하도록 되어 있었기 때문에 작업기구를 탈, 부착하는데 시간이 많이 소요되었고, 인력의 손실이 많았을 뿐만 아니라, 안전사고가 빈번하게 발생하였다.In other words, if the work tool is directly removed and attached to the arm tip of the excavator, 2-3 assistants in addition to the excavator adjuster hit the connecting pin with a heavy hammer or a steel pipe, and the pilot controls the excavator to control the pin. Since the work tool was detached and attached to the arm tip to facilitate insertion and relaxation, it took a long time to remove and attach the work tool, and there were many loss of manpower and frequent safety accidents.

따라서 상기의 점들을 감안하여 최근 작업기구를 보다 쉽게 탈, 부착시킬 수 있도록 아암선단에 별도의 작업기구 교환장치인 링크를 설치하여 상기 링크에 의해 각종 작업기구를 간단히 탈, 부착시킬 수 있도록 한 것이 있는데, 예로서 본 발명의 출원인이 출원한 대한민국 실용신안 공고 제 95-5247호가 있었으나 이는 아암의 선단에 링크를 고정핀으로 고정시킨후 링크의 하단에 작업기구를 탈, 부착시키도록 되어 있었기 때문에 링크의 길이만큼 아암선단에서 작업기구 하단까지의 길이가 길어져 굴삭기의 굴삭력이 저하되었다.Accordingly, in view of the above points, a link, which is a separate work tool exchange device, is installed at the end of the arm so that the work tool can be easily detached and attached, so that various work tools can be easily detached and attached by the link. For example, there was Republic of Korea Utility Model Publication No. 95-5247 filed by the applicant of the present invention, but this is because the link to the lower end of the arm after fixing the link with a fixing pin, so that the work tool is attached to the lower end of the link The length from the tip of the arm to the bottom of the work tool was increased by the length of, reducing the excavator's digging force.

즉, 아암선단에 링크의 상단을 고정핀으로 고정한후 링크의 하단에 형성된 핀삽입홈에 작업기구에 부착된 연결핀을 삽입시켜 작업기구를 링크에 고정시켰기 때문에 링크상단에 고정된 고정핀과 하단의 핀삽입홈에 삽입되는 연결핀까지의 거리만큼 아암선단과 작업기구 하단까지의 길이가 길어지게 되므로 굴삭기의 굴삭력은 길어진 길이에 비례하여 약화 또는 저하시키는 역효과를 초래하게 되어 작업효율(굴삭력)을 저하시키게 되었다.In other words, after fixing the upper end of the link with the fixing pin at the end of the arm and inserting the connecting pin attached to the working tool into the pin insertion groove formed at the lower end of the link, the working tool is fixed to the link. As the length of the arm tip and the bottom of the work tool is lengthened by the distance from the connecting pin inserted into the pin insertion groove of the excavator, the digging force of the excavator causes the adverse effect of weakening or decreasing in proportion to the longer length. Was dropped).

뿐만 아니라, 굴삭기의 모든 제원은 아암선단에 작업기구를 직접 부착한 상태를 최적의 상태로 제조되었기 때문에 링크의 길이만큼 아암선단에서 작업기구 하단까지 길이가 길어지게되면 작업도중 작업기구가 굴삭기 본체에 충돌하는 일이 발생하거나 길어진 길이만큼 굴삭기의 무게 중심이 전방으로 이동되어 굴삭기가 전복되는등의 문제가 발생하였다.In addition, all the specifications of the excavator are manufactured in the optimal state of attaching the work tool directly to the arm tip, so if the length from the arm tip to the bottom of the work tool is increased by the length of the link, the work tool is attached to the excavator body. The collision occurred or the center of gravity of the excavator was moved forward by a lengthened length, causing the excavator to overturn.

따라서 본 발명은 상기와 같은 제반 문제점을 제거하기 위하여 장출된 것으로서, 아암선단에 작업기구를 용이하게 탈, 부착할 수 있는 작업기구 교환장치를 설치하여도 아암선단에서 작업기구(특히 버켓의 경우) 하단까지의 길이변화가 발생하지 않도록 함으로써 굴삭기의 굴삭력이 저하되는 것을 방지하는데 발명의 목적이 있다.Therefore, the present invention has been made in order to eliminate the above problems, the work tool (particularly in the case of the bucket) in the arm tip even if the work tool exchange device that can be easily detached, attached to the arm tip It is an object of the invention to prevent the excavator's digging force from being lowered by preventing the change in length to the lower end.

본 발명의 또다른 목적은 작업중에 작업기구가 굴삭기 본체에 충돌하거나 굴삭기가 전복되는 것을 방지하는데 있다.Another object of the present invention is to prevent the work tool from colliding with the excavator body or overturning the excavator during the operation.

도 1 은 본 발명의 일 실시예를 나타낸 분리사시도1 is an exploded perspective view showing an embodiment of the present invention

도 2 는 도 1 의 요부를 나타낸 부분단면도2 is a partial cross-sectional view showing the main portion of FIG.

도 3 은 도 1 의 26크를 일부 절개한 평면도FIG. 3 is a plan view partially cut through the 26th rack of FIG.

도 4 는 도 1 의 작용상태도로서,4 is an operational state diagram of FIG.

(가)는 링크에 버켓이 결합되기 전의 측면도이고,(A) is a side view before the bucket is joined to the link,

(나)는 링크에 버켓이 결합된 측면도.(B) is a side view of the bucket coupled to the link.

도 5 는 본 발명의 다른 실시예를 나타낸 분리사시도Figure 5 is an exploded perspective view showing another embodiment of the present invention

도 6 은 도 5 의 요부를 나타낸 부분단면도6 is a partial cross-sectional view showing the main part of FIG.

도 7 은 도 5 의 링크를 일부절개한 평면도7 is a plan view partially cut through the link of FIG.

도 8 은 도 5 의 작용상태도로서,8 is an operational state diagram of FIG.

(가)는 링크에 버켓이 결합되기 전의 측면도이고,(A) is a side view before the bucket is joined to the link,

(나)는 링크에 버켓이 결합된 측면도.(B) is a side view of the bucket coupled to the link.

*도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1. 링크 2. 링크본체1. Link 2. Link Body

3. 전면연결핀 4. 후면 아암 연결구3. Front connector pin 4. Rear arm connector

5,5'. 후면연결핀 6. 핀안내구5,5 '. Rear Connection Pin 6. Pin Guide

7. 유압실린더 8. 실린더로드7. Hydraulic cylinder 8. Cylinder rod

11. 견인고리 12. 작업기구11. Towing Hook 12. Work Tools

13. 전면핀 삽입홈 14. 후면핀 삽입홈13. Front pin insertion groove 14. Rear pin insertion groove

18. 지지판 19. 후면핀 삽입구18. Support Plate 19. Rear Pin Insert

상기 목적을 달성하기 위한 본 발명의 특징은 굴삭기의 아암선단에 설치되어 작업기구를 용이하게 탈, 부착할 수 있도록 한 작업기구 교환장치에 있어서, 후면아암 연결구가 중앙 상부에 형성된 링크본체와;A feature of the present invention for achieving the above object is a work tool exchange apparatus installed on the arm tip of the excavator to easily detach, attach the work tool, the rear arm connector is formed in the center upper link;

상기 링크본체의 전면부에 설치되어 전면 아암선단에 연결되는 전면 연결핀과;A front connection pin installed at the front part of the link body and connected to the front arm tip;

상기 링크본체의 내측에 실린더 고정핀에 의해 고정설치되는 유압실린더와;A hydraulic cylinder fixed to the inner side of the link body by a cylinder fixing pin;

상기 유압실린더의 실린더로드 끝단에 설치되는 후면 연결핀으로 구성된 것으로서 이하 첨부된 도면에 의거하여 본 발명의 실시예를 상세히 설명하면 다음과 같다.According to the accompanying drawings, the embodiment of the present invention will be described in detail with reference to the accompanying drawings, which are configured as rear connection pins installed at the end of the cylinder rod of the hydraulic cylinder.

도 1 내지 도 4 는 본 발명의 일 실시예를 나타낸 것으로서 작업기구(12)(도면에서는 버켓으로 도시되어 있으나 브레이카등과 같은 각종 작업기구를 모두 포함한다)의 상부에는 훅형태로 전면핀 삽입홈(13)과 후면핀 삽입홈(14)을 각각 형성하고, 상기 전면핀 삽입홈(13)에 삽입 고정됨과 동시에 전면아암(15)의 선단에 고정되는 전면연결핀(3)을 링크본체(2)의 전면부에 설치하며,1 to 4 show an embodiment of the present invention, the upper surface of the work tool 12 (shown as a bucket in the drawing but includes all the various work tools such as a brake car, etc.) in the form of a hook pin A groove 13 and a rear pin insertion groove 14 are formed, respectively, and the front connection pin 3 is fixed to the front pin insertion groove 13 and fixed to the front end of the front arm 15 at the link body ( 2) is installed on the front part,

상기 링크본체(2)의 중앙상부에는 후면아암(16)에 고정핀(17)으로 고정되는 후면아암 연결구(4)를 형성한다.In the upper portion of the center of the link body (2) forms a rear arm connector (4) which is fixed to the rear arm (16) by a fixing pin (17).

그리고 상기 링크본체(2)의 내측에는 유압실린더(7)를 실린더 고정핀(9)으로 고정설치하고, 상기 유압실린더(7)의 실린더로드(8)에는 후면연결핀(5)을 고정하되, 상기 후면 연결핀(5)은 실린더 로드(8)에 직각으로 고정하고, 링크본체(2)에는 핀안내구(6)를 형성하여 후면 연결핀(5)이 전후로 왕복이동 되도록 하며, 상기 링크본체(2)의 후면 외측에는 견인고리(11)를 형성하여 작업기구(12)를 제거한 상태에서 견인고리(11)를 이용하여 견인작업을 할 수 있게 한다.And fixing the hydraulic cylinder (7) to the cylinder fixing pin (9) inside the link body (2), the rear connecting pin (5) is fixed to the cylinder rod (8) of the hydraulic cylinder (7), The rear connecting pin 5 is fixed to the cylinder rod 8 at a right angle, and the link body 2 forms a pin guide port 6 so that the rear connecting pin 5 reciprocates back and forth, and the link body Tow ring 11 is formed on the outside of the rear of the rear surface to allow the tow work using the tow ring 11 in a state where the work mechanism 12 is removed.

이때 상기 전면연결핀(3) 및 후면연결핀(5)은 링크본체(2)의 양측으로 돌출되도록 하여 상기 작업기구(12)의 각 핀삽입홈(13, 14)에 각 연결핀(3, 5)이 걸리도록 한다.At this time, the front connecting pin (3) and the rear connecting pin (5) to protrude to both sides of the link body (2), each connecting pin (3, in each pin insertion groove 13, 14 of the work tool 12) 5) to take.

미설명 부호 1은 링크, 10은 밸브이다.Reference numeral 1 is a link and 10 is a valve.

상기와 같이 구성된 본 발명의 일실시예는 링크본체(2)의 중앙상부에 형성된 후면아암 연결구(4)에 고정핀(17)을 삽입하여 후면아암(16) 선단에 링크(1)를 고정함과 동시에 전면 연결핀(3)을 전면아암(15) 선단에 고정함으로서 링크(1)의 아암의 선단에 고정한다.One embodiment of the present invention configured as described above to fix the link (1) to the front end of the rear arm (16) by inserting the fixing pin 17 into the rear arm connector (4) formed on the center of the link body (2) At the same time, by fixing the front connecting pin (3) to the front end of the arm (15), it is fixed to the tip of the arm of the link (1).

상기와 같이 링크(1)를 각 아암(15, 16)의 선단에 고정한 후 작업기구(12)를 부착하고자 할 때에는 도 4 의 (가)와 같이 운전자가 아암(15, 16)을 이동시켜 전면핀 삽입홈(13)에 전면연결핀(3)이 삽입되도록 한 후 아암(15, 16)을 전면(굴삭기방향)으로 서서히 상승하면서 이동시키면 도 4 의 (나)와 같이 작업기구(12)의 후면이 상승하게 되어 링크(1)의 후면과 작업기구(12)의 후면이 밀착됨으로서 후면 연결핀(5)이 후면핀 삽입홈(14)의 전방에 위치하게 된다.When fixing the link 1 to the tip of each arm 15, 16 as described above, and attaching the work tool 12, the driver moves the arms 15, 16 as shown in (a) of FIG. After the front connecting pin 3 is inserted into the pin insertion groove 13, the arms 15 and 16 are gradually raised and moved to the front side (excavator direction), and as shown in FIG. As the rear surface is raised, the rear surface of the link 1 and the rear surface of the work tool 12 are in close contact with each other, so that the rear connection pin 5 is positioned in front of the rear pin insertion groove 14.

그와 같은 상태에서 운전자가 밸브(10)를 통해 유압 실린더(7)의 후방으로 오일을 유입시키게 되면 실린더 로드(8)가 전진하여 후면 연결핀(5)을 이동시키면 후면 연결핀(5)은 핀안내구(6)를 따라 이동하여 후면핀 삽입홈(14)에 삽입고정됨으로서 작업기구(12)가 아암(15, 16)의 선단에 연결된다.In such a state, when the driver introduces oil to the rear of the hydraulic cylinder 7 through the valve 10, the cylinder rod 8 moves forward to move the rear connecting pin 5, and the rear connecting pin 5 is By moving along the pin guide 6 and being inserted into the rear pin insertion groove 14, the work tool 12 is connected to the tips of the arms 15 and 16.

그리고 작업기구(12)를 탈착하고자 할 때에는 상기와 반대로 유압실린더(7)의 전방으로 오일을 유입시키면 실린더 로드(8)가 후진하여 후면 연결핀(5)을 후면핀 삽입홈(14)에서 이탈시킨후 아암(15, 16)을 이동시켜 전면연결핀(3)을 전면핀 삽입홈(13)에서 이탈시키면 탈착이 완료된다.In addition, when the work tool 12 is to be detached and the oil is introduced into the front of the hydraulic cylinder 7 as opposed to the above, the cylinder rod 8 reverses and the rear connecting pin 5 is separated from the rear pin insertion groove 14. After removing the front connecting pin (3) from the front pin insertion groove 13 by moving the arm (15, 16).

이때 본 발명에서는 견인고리(11)가 링크(1)의 후면에 형성되어 있으므로 견인 작업시 종래와 같이 1ton이 넘는 버켓의 후면에 형성된 견인고리를 사용하지 않아도 됨으로 작업효율을 향상시키게 된다.At this time, in the present invention, the tow ring 11 is formed on the rear side of the link 1, thereby improving work efficiency by not having to use the tow ring formed on the rear side of the bucket over 1 ton as in the prior art.

이상과 같은 본 발명의 또다른 실시예를 설명하면 다음과 같다.Another embodiment of the present invention as described above is as follows.

도 5 내지 도 8 은 본 발명의 또다른 실시예를 나타낸 것으로서, 작업기구(12)의 상부 전면에는 훅형태로 전면핀 삽입홈(13)을 형성하고, 후면에는 지지판(18)을 고정한 후 상기 지지판(18)에 후면핀 삽입구(19)를 형성한다.5 to 8 show another embodiment of the present invention, the front pin insertion groove 13 is formed on the upper front surface of the work tool 12 in a hook shape, and the support plate 18 is fixed to the rear surface. The back pin insertion hole 19 is formed in the support plate 18.

그리고, 상기 전면핀 삽입홈(13)에 삽입고정됨과 동시에 전면아암(15)의 선단에 고정되는 전면 연결핀(3)을 링크본체(2)의 전면부에 설치하며, 상기 링크본체(2)의 중앙 상부에는 후면아암(16)에 고정핀(17)으로 고정되는 후면아암 연결구(4)를 형성하고, 상기 링크본체(2)의 내측에는 유압실린더(7)를 실린더 고정핀(9)으로 고정설치한다.Then, the front connecting pin (3) is fixed to the front pin insertion groove (13) and fixed to the front end of the front arm (15) is installed on the front of the link body (2), the link body (2) A rear arm connector (4) is fixed to the rear arm (16) by a fixing pin (17) at the center of the upper portion, and the hydraulic cylinder (7) inside the link body (2) is a cylinder fixing pin (9). Fix the installation.

또한, 상기 유압실린더(7)의 실린더로드(8)에는 후면 연결핀(5')을 고정하되, 상기 후면 연결핀(5')은 실린더 로드(8)에 평행으로 고정하고, 링크본체(2)의 후면으로 후면 연결핀(5')이 왕복이동 되도록 핀안내구(20)를 형성하여 후면 연결핀(5')에 전후로 왕복이동되도록 한다.In addition, the rear connecting pin 5 'is fixed to the cylinder rod 8 of the hydraulic cylinder 7, and the rear connecting pin 5' is fixed to the cylinder rod 8 in parallel, and the link body 2 Back to the rear of the connecting pin (5 ') to form a pin guide (20) to reciprocate to move back and forth to the rear connecting pin (5').

이때 상기 전면 연결핀(3)은 링크본체(2)의 양측으로 돌출되도록 하여 상기 작업기구(12)의 전면핀 삽입홈(13)에 전면 연결핀(3)이 걸리도록 하여, 상기 지지판(18)의 후면핀 삽입구(19)의 내측 끝단은 테이퍼지도록 하여 작업기구(12)가 링크(1)에 견고하게 고정되도록 한다.At this time, the front connecting pin (3) is projected to both sides of the link body (2) so that the front connecting pin (3) is caught in the front pin insertion groove 13 of the working tool 12, the support plate (18) The inner end of the rear pin insertion port 19 of the taper is tapered so that the work tool 12 is firmly fixed to the link 1.

상기와 같이 구성된 본 발명의 또다른 실시예는 링크본체(2)의 중앙상부에 형성된 후면아암 연결구(4)에 고정핀(17)을 삽입하여 후면아암(16)선단에 링크(1)를 고정함과 동시에 전면 연결핀(3)을 전면아암(15)의 선단에 고정함으로써 링크(1)를 아암의 선단에 고정한다.Another embodiment of the present invention configured as described above is fixed to the link (1) to the front end of the rear arm (16) by inserting the fixing pin 17 into the rear arm connector (4) formed in the upper center of the link body (2) At the same time, the front linking pin 3 is fixed to the front end of the front arm 15 to fix the link 1 to the front end of the arm.

상기와 같이 링크(1)를 아암(15, 16)의 선단에 고정한후 작업기구(12)를 부착하고자 할 때에는 도 8 의 (가)와 같이 운전자가 아암(15, 16)을 이동시켜 전면핀 삽입홈(13)에 전면핀(3)이 삽입되도록 한 후 아암(15, 16)을 전면(굴삭기방향)으로 서서히 상승하면서 이동시키면 도 8 의 (나)와같이 작업기구(12)의 후면이 상승하게 되어 링크(1)의 후면과 작업기구(12)의 후면이 밀착됨으로서 후면 연결핀(5')이 후면핀 삽입구(19)의 전방에 위치하게 된다.As described above, when fixing the link 1 to the tip of the arms 15 and 16 and attaching the work tool 12, the driver moves the arms 15 and 16 as shown in FIG. After the front pin 3 is inserted into the insertion groove 13, the arm 15, 16 is slowly moved to the front side (excavator direction) while moving the rear side of the work tool 12 as shown in FIG. As the rear surface of the link 1 and the rear surface of the work tool 12 are in close contact with each other, the rear connection pin 5 ′ is positioned in front of the rear pin insertion hole 19.

그와 같은 상태에서 운전자가 밸브(10)을 통해 유압실린더(7)의 후방으로 오일을 유입시키게 되면 실린더로드(8)가 전진하여 후면 연결핀(5')을 이동시키면 후면 연결핀(5')은 핀안내구(20)을 따라 이동하여 후면핀 삽입구(19)에 삽입고정됨으로서 작업기구(12)가 아암(15, 16)의 선단에 연결된다.In such a state, when the driver introduces oil to the rear of the hydraulic cylinder (7) through the valve (10), the cylinder rod (8) moves forward and moves the rear connecting pin (5 ') and the rear connecting pin (5'). ) Moves along the pin guide (20) to be inserted into the rear pin insertion hole (19), so that the work tool (12) is connected to the tips of the arms (15, 16).

그리고 작업기구(12)를 탈착하고자 할 때에는 상기와 반대로 유압실린더(7)의 전방으로 오일을 유입시키면 실린더 로드(87)가 후진하여 후면 연결핀(5')을 후면핀 삽입구(19)에서 이탈시킨후, 아암(15, 16)을 이동시켜 전면 연결핀(3)을 전면핀 삽입홈(13)에서 이탈시키면 탈착이 완료된다.In addition, when the work tool 12 is to be detached and the oil is introduced to the front of the hydraulic cylinder 7 as opposed to the above, the cylinder rod 87 reverses and the rear connecting pin 5 ′ is separated from the rear pin insertion port 19. Then, the arm (15, 16) is moved to remove the front connecting pin (3) from the front pin insertion groove (13) to complete the removal.

이상과 같은 본 발명은 작업기구의 각 핀 삽입홈(13, 14)을 훅형태로 형성하고, 링크(1)의 전면 연결핀(3)에 작업기구(12)와 전면 아암(15)을 동시에 고정하며, 후면 연결핀(5, 5')은 작업기구(12)의 본체에 밀착되어 설치되도록 함으로서 본 발명인 링크(1)을 사용하여 작업기구(12)를 용이하게 탈, 부착되도록 하면서도 원래 굴삭기에 작업기구가 부착되는 위치에 작업기구가 동일하게 부착됨으로 전면 아암(15) 선단과 작업기구(12)의 하단과의 거리가 변화되지 않는다.According to the present invention as described above, the pin insertion grooves 13 and 14 of the work tool are formed in a hook shape, and the work tool 12 and the front arm 15 are simultaneously connected to the front connecting pin 3 of the link 1. The rear connecting pins (5, 5 ') is to be installed in close contact with the main body of the work tool 12, by using the link (1) of the present invention to easily remove and attach the work tool 12, while the original excavator Since the work tool is attached to the same position where the work tool is attached, the distance between the front end of the front arm 15 and the lower end of the work tool 12 does not change.

따라서, 본 발명은 링크를 설치함으로서 굴삭기의 굴삭력이 저하되는 것을 방지함과 아울러 작업중 변화로 굴삭기가 전복되는 것을 방지할 수 있는 효과가 있는 것이다.Therefore, the present invention is to prevent the decline of the excavator's digging force by providing a link, and also to prevent the excavator from overturning due to the change during the operation.

Claims (6)

굴삭기의 아암선단에 설치되어 작업기구를 용이하게 탈, 부착할 수 있도록 한 작업기구 교환장치에 있어서, 후면아암 연결구가 중앙상부에 형성된 링크본체와;A work tool changer installed at an arm tip of an excavator to easily detach and attach a work tool, comprising: a link body having a rear arm connector formed at an upper portion of the center; 상기 링크본체의 전면부에 설치되어 전면 아암 선단에 연결되는 전면 연결핀과;A front connection pin installed at a front portion of the link body and connected to a front arm tip; 상기 링크본체의 내측에 실린더 고정핀에 의해 고정설치되는 유압실린더와;A hydraulic cylinder fixed to the inner side of the link body by a cylinder fixing pin; 상기 유압실린더의 실린더 로드 끝단에 설치되는 후면 연결핀으로 구성된 것을 특징으로하는 굴삭기의 작업기구 교환장치.Exchanging apparatus for work tools of the excavator, characterized in that consisting of the rear connection pin is installed at the end of the cylinder rod of the hydraulic cylinder. 제 1 항에 있어서, 상기 실린더 로드의 끝단에 설치되는 후면 연결핀을 실린더 로드에 직각으로 고정하고, 링크본체에는 핀안내구를 형성하여 후면 연결핀이 전후로 왕복이동되도록 한 것을 특징으로 하는 굴삭기의 작업기구 교환장치.The excavator of claim 1, wherein the rear connecting pin installed at the end of the cylinder rod is fixed at right angles to the cylinder rod, and a link guide is formed at the link main body so that the rear connecting pin is reciprocated back and forth. Work tool changer. 제 1 항에 있어서, 상기 실린더 로드의 끝단에 설치되는 후면 연결핀을 실린더 로드에 평행으로 고정하고, 링크본체에는 후면으로 후면 연결핀이 왕복이동되도록 핀 안내구를 형성하여 후면 연결핀이 전후로 왕복이동되록 한 것을 특징으로 하는 굴삭기의 작업기구 교환장치.According to claim 1, wherein the rear connecting pin is installed at the end of the cylinder rod in parallel to the cylinder rod, the link body to form a pin guide to reciprocate the rear connecting pin to the rear to form a rear connecting pin reciprocating back and forth Excavator work tool exchanger, characterized in that moved. 제 1 항에 있어서, 상기 작업기구의 상부에 훅형태로 전면핀 삽입홈과 후면핀 삽입홈이 각기 전후면에 형성된 것을 특징으로 하는 굴삭기의 작업기구 교환장치.The apparatus of claim 1, wherein the front pin insertion grooves and the rear pin insertion grooves are formed on the front and rear surfaces in a hook form on the upper portion of the work tool. 제 1 항에 있어서, 상기 작업기구의 상부전면에는 훅형태로 전면핀 삽입홈을 형성하고, 후면에는 지지판을 고정한후 상기 지지판에 후면핀 삽입구를 형성한 것을 특징으로 하는 굴삭기의 작업기구 교환장치.The apparatus of claim 1, wherein a front pin insertion groove is formed on the upper front surface of the work tool in the form of a hook, and a rear pin insertion hole is formed on the support plate after fixing the support plate on the rear surface. 제 1 항에 있어서, 상기 링크본체의 후면 외측에 견인고리를 형성한 것을 특징으로 하는 굴삭기의 작업기구 교환장치.The apparatus of claim 1, wherein a traction ring is formed outside the rear surface of the link body.
KR1019980038126A 1998-09-15 1998-09-15 Exchanging Work Equipment of Excavator KR100310003B1 (en)

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KR1019980038126A KR100310003B1 (en) 1998-09-15 1998-09-15 Exchanging Work Equipment of Excavator
PCT/KR1999/000447 WO2000015912A2 (en) 1998-09-15 1999-08-12 Device for holding attachments in power excavators
AU53068/99A AU5306899A (en) 1998-09-15 1999-08-12 Device for holding attachments in power excavators

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KR102156813B1 (en) * 2019-12-12 2020-09-16 곽명진 Excavator with link apparatus

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