JP3218744U - Crusher and work machine - Google Patents

Abstract

The present invention provides a crusher that can be suitably used as an attachment for a work machine including a boom, a first arm, and a second arm in order, and a work machine including the crusher. A boom 30, a first arm 10, and a second arm 20 are connected to a civil engineering work machine so as to be pivotable in this order, and further, a crushing claw is provided at the tip of the second arm. In the crusher 1 with 2, the base end mounting base of the crusher and the tip mounting base of the second arm are each provided with a plurality of connection holes for connecting both bases, It was set as the structure which can change the connection angle of the crusher with respect to a 2nd arm by changing the combination of the hole for connection and the connection hole on the 2nd arm side. [Selection] Figure 1

Description

  The present invention relates to a crusher that is attached to a work machine having a boom, a first arm, and a second arm in order, and a work machine.

  Conventionally, when a house or the like is dismantled, an excavator or the like having a boom and an arm and a crusher attached to the tip of the boom and arm has been used. For example, Patent Document 1 discloses a boom that is pivotable up and down (meaning that it can pivot in the height direction along the vertical wall surface; the same applies hereinafter), and an arm that is pivotably mounted on the boom. A work machine including a work tool (attachment) attached to the arm so as to be rotatable up and down is disclosed. Further, the work tool (attachment) has a gripping device main body attached to the tip of the arm, a pair of gripping claws and a work tool claw cylinder for opening and closing the gripping claws, and the work tool is not limited to a grapple, but a breaker, etc. It is also disclosed that can be used.

JP 2017-8527 A

  In dismantling the roof of a house using a conventional hydraulic working machine such as Patent Document 1, the work tool (attachment) may not reach a desired site. Therefore, for example, a new arm is used as the second arm, and the entire length of the arm can be increased by connecting the new arm to the tip of the original arm (hereinafter sometimes referred to as the first arm). However, in this case, since the weight of the second arm and a new arm cylinder for rotating the second arm up and down is added, the center of gravity of the work machine may be increased and the overall balance may be deteriorated. .

  This invention is made | formed in view of the said situation, The objective is the crusher which can be used suitably as an attachment of the working machine provided with the boom, the 1st arm, and the 2nd arm in order, and the said crushing It is to provide a working machine including a machine.

  A crusher according to the present invention is attached to a tip mounting base portion of the second arm on the tip side in a work machine having a boom, a first arm, and a second arm in order, and is operated in an opening direction and a closing direction by hydraulic pressure. The crusher provided with the crushing claw is configured to be mounted and fixed by selecting a plurality of mounting angles with respect to the tip mounting base.

  The present invention also includes a work machine including the crusher.

  According to the present invention, the above configuration provides a crusher that can be suitably used as an attachment for a work machine including a boom, a first arm, and a second arm in order, and a work machine including the crusher. it can.

It is a side view of a working machine provided with the crusher of this invention. (A) It is a side view of the crusher of this invention, and a 2nd arm. (B) It is a side view of the crusher of this invention, and a 2nd arm. (C) It is a side view of the 2nd arm. It is a top view of a coupling body. It is a side view of a working machine provided with the crusher of this invention.

  Hereinafter, the present invention will be described in detail by way of examples. However, the present invention is not limited by the following examples as a matter of course, and should be implemented with appropriate modifications within a range that can meet the purpose described above and below. Of course, these are all possible and are included in the technical scope of the present invention.

  As shown in FIG. 1, the crusher 1 of the present invention has a tip crushing claw 2 that operates in an opening direction A and a closing direction B by hydraulic pressure. Furthermore, the crusher 1 is a work machine 50 including a boom 30, a first arm 10 on the boom 30 side, and a second arm 20 on the distal end side in order, a distal end mounting base 21a of the second arm 20 on the distal end side, A plurality of attachment angles are selected and fixed to 21b and 21c.

  The crusher 1 of the present invention has the greatest feature in that it is fixed by selecting a plurality of mounting angles. In the conventional work machine, the crusher was attached to the tip of the arm so that it can be turned up and down. However, as a result of intensive studies by the inventors, the crusher was unexpectedly turned up and down on the tip of the arm. It has been found that it is not in a state where it can be used and can be used without any problem as a crusher in the dismantling of a house or the like even if it is fixedly attached. Thus, since the crusher 1 of the present invention does not rotate up and down, the cylinder attached to the arm for rotating the crusher 1 up and down can be omitted, and as a result, the center of gravity of the work machine is stabilized. Can be made easier. Therefore, the crusher 1 can be suitably used as an attachment for a work machine including a boom, a first arm, and a second arm whose center of gravity is difficult to stabilize. Furthermore, the crusher 1 can also improve work efficiency by changing an attachment angle for every site.

  Below, each structure is explained in full detail.

  As shown in FIG. 1, the crusher 1 has a tip crushing claw 2 that operates in an opening direction A and a closing direction B by hydraulic pressure with the claw claw attachment bases 4 a and 4 b as the center. Although not shown, a crushing claw cylinder capable of operating the crushing claw 2 in the opening direction A and the closing direction B is built in the main body 3 of the crusher 1 and supplied from the oil supply port 6. It can be operated by the oil pressure of the oil. In each figure, the hydraulic hose is not shown.

  The tip crushing claw 2 may be capable of directly crushing an object such as a roof of a house by operating in the closing direction B, or gripping the object and turning the second arm 20 up and down, for example. The object may be crushed indirectly by moving it.

  As shown in FIGS. 1 and 2, proximal end bases 5 a and 5 b for attaching to the distal end of the second arm 20 are provided at the proximal end of the crusher 1. Although the shape of the base end attachment bases 5a and 5b of the crusher 1 is not particularly limited, it is preferably a through hole. If a plurality of base end mounting bases of the crusher 1 are provided, the mounting angle can be easily selected. Therefore, the number of base end mounting bases of the crusher 1 is preferably two or more. On the other hand, if the base end mounting base of the crusher 1 increases too much, the strength may decrease. Therefore, the number of base end mounting bases of the crusher 1 is preferably 4 or less.

  Examples of the crusher 1 include a crusher, a cutter, and a grapple.

  As shown in FIG. 2C, tip mounting bases 21 a, 21 b, and 21 c are provided at the tip of the second arm 20. The shape of the tip mounting bases 21a, 21b, 21c is not particularly limited, but is preferably a through hole.

  As shown in FIGS. 2 (a) and 2 (b), for example, the mounting angle of the crusher 1 can be changed by changing the tip mounting base for inserting the fixing pin.

  Specifically, in FIG. 2A, the distal end mounting bases 21a, 21b, and 21c of the second arm 20 and the proximal end mounting bases 5b and 5a of the crusher 1 are all through holes. The distal end mounting bases 21a and 21c are selected as the distal end mounting bases of the second arm 20, and the distal end mounting base 21a of the second arm 20 and the proximal end mounting base 5b of the crusher 1 are overlapped to insert a fixing pin. And fixed by bolts. Further, the distal end mounting base portion 21c of the second arm 20 and the proximal end mounting base portion 5a of the crusher 1 are overlapped with the annular portion 8 of the joined body 7 shown in FIG. Yes.

  On the other hand, in FIG. 2B, the tip mounting bases 21a and 21b are selected as the tip mounting bases of the second arm 20, and the tip mounting base 21a of the second arm 20 and the base mounting base 5b of the crusher 1 are selected. Are fixed and bolts are inserted and fixed by bolts. Further, the distal end mounting base portion 21b of the second arm 20 and the proximal end mounting base portion 5a of the crusher 1 are overlapped with the annular portion 8 of the joined body 7, and a fixing pin is inserted and fixed by a bolt.

  As shown in FIGS. 2A and 2B, the crusher 1 changes the mounting angle by changing the tip mounting base used from among the plurality of tip mounting bases 21a, 21b, and 21c of the second arm 20. And can be fixed.

  The number of tip mounting bases of the second arm 20 is not limited to three, but may be two or four or more.

  When the number of the tip mounting bases of the second arm 20 is two, the mounting angle θ of the crusher 1 is changed by using only one tip mounting base and fixed using fixing pins, bolts or the like. Also good. Moreover, when using two front-end | tip attachment bases, the crusher 1 is fixed to the one front-end | tip attachment base using the coupling body 7, and the coupling body 7 is replaced with the thing from which the length of the main-body part 9 differs after that. The mounting angle θ may be changed accordingly.

  If three or more tip mounting bases of the second arm 20 are provided, the number of options for the mounting angle θ can be increased. Therefore, the number of tip mounting bases of the second arm 20 is preferably three or more, more preferably. Is 4 or more. On the other hand, if the tip mounting base portion of the second arm 20 is too large, the bracket 23 for providing the tip mounting base needs to be enlarged, and the weight of the second arm 20 may increase. Therefore, the number of the tip mounting bases of the second arm 20 is preferably 8 or less, more preferably 6 or less, and even more preferably 5 or less.

  The mounting angle θ of the crusher 1 is the center point of the base end mounting base portion 22b that becomes the rotation center (pivot center) of the second arm 20 described later, and the center point of each of the tip end mounting base portions 21a, 21b, and 21c. Means the angle formed by the center line L1 of the crusher 1 with respect to the line L2 connecting the polygonal center of gravity O surrounded by the straight line connecting the two.

  In the case where the number of the distal end mounting bases of the second arm 20 is two, the mounting angle θ of the crusher 1 is the center point of the base mounting base 22b serving as the rotation center of the second arm 20 and two It means the angle formed by the center line L1 of the crusher 1 with respect to the line L3 connecting the center points of the lines connecting the respective center points of the tip mounting base.

  The mounting angle θ of the crusher 1 is preferably 70 ° or more, more preferably 80 ° or more, further preferably 90 ° or more, preferably 170 ° or less, more preferably 160 ° or less, and further preferably 150 °. It is as follows.

  As shown in FIGS. 2A to 2C, base end attachment base portions 22 a and 22 b are provided at the base end of the main body portion 24 of the second arm 20. The shape of the base end mounting base portions 22a and 22b is not particularly limited, but is preferably a through hole.

  As shown in FIG. 1, the distal end of a second arm cylinder 42 for vertically rotating the second arm 20 is connected to the proximal end mounting base portion 22a of the second arm 20 via a link. On the other hand, the base end attachment base portion 22 b is attached to the tip of the first arm 10 and serves as the rotation center of the second arm 20. The second arm cylinder 42 corresponds to a bucket cylinder in a work machine that does not include the second arm and has a bucket coupled to the first arm.

  The length from the base end mounting base portion 22a of the second arm 20 to the tip of the second arm 20 is preferably 0.5 m or more, more preferably 1 m or more, preferably 2 m or less, more preferably 1.5 m or less. is there.

  As shown in FIG. 1, the distal end of a first arm cylinder 41 for rotating the first arm 10 up and down is connected to the proximal end mounting base portion 11a of the first arm 10 via a link. On the other hand, the base end attachment base 11 b is attached to the tip of the boom 30 and serves as the rotation center of the first arm 10.

  The length from the base end mounting base 11b of the first arm 10 to the tip of the first arm 10 is preferably 0.5 m or more, more preferably 1 m or more, preferably 2 m or less, more preferably 1.5 m or less. is there.

  As shown in FIG. 1, a boom cylinder 40 for rotating the boom 30 up and down is connected to the center of the boom 30. The base end attachment base 31 of the boom 30 is attached to the front part of the work machine 50 and serves as the pivot center of the boom 30.

  The length from the base end mounting base 31 of the boom 30 to the tip of the boom 30 is preferably 1.5 m or more, more preferably 2 m or more, preferably 3.5 m or less, more preferably 2.5 m or less.

  As shown in FIG. 4, the first arm 10, the second arm 20, and the boom 30 can be folded and stored.

  The length from the base end mounting base portion 22 a of the second arm 20 to the tip of the second arm 20 is 0.8 times or more the length from the base end mounting base portion 11 b of the first arm 10 to the tip of the first arm 10. 1.2 times or less is preferable. Thereby, the center of gravity of the airframe can be easily stabilized, and can be folded and stored easily. More preferably, it is 0.9 times or more and 1.1 times or less.

  The present invention also includes a work machine member including the first arm 10, the second arm 20, the boom 30, and the crusher 1.

  The present invention also includes a work machine 50 including the first arm 10, the second arm 20, the boom 30, and the crusher 1.

  Examples of the work machine 50 include civil work work machines such as excavators. Examples of the excavator include a mini excavator having a body mass of less than 6 t, a medium-sized shovel having a body mass of 6 t or more and 40 t or less, and a large excavator having a body mass of 40 t or more. Of these, a mini excavator is preferable.

DESCRIPTION OF SYMBOLS 1 Crusher 2 Tip crushing claw 3 Main body part 4a, 4b Crushing claw attachment base part 5a, 5b Base end attachment base part 6 Oil supply port 7 Combined body 8 Annular part 9 Main body part 10 1st arm 11a, 11b Base end attachment base part 20th 2 arms 21a, 21b, 21c Tip mounting bases 22a, 22b Base mounting bases 23 Brackets 24 Main bodies 30 Booms 31 Base mounting bases 40 Boom cylinders 41 First arm cylinders 42 Second arm cylinders 50 Work machines

Conventionally, when a house or the like is dismantled, an excavator or the like having a boom and an arm and a crusher attached to the tip of the boom and arm has been used. For example, Patent Document 1 discloses a boom that is pivotable up and down (meaning that it can pivot in the height direction along the vertical wall surface; the same applies hereinafter), and an arm that is pivotably mounted on the boom. A work machine including a work tool (attachment) attached to the arm so as to be rotatable up and down is disclosed. Further, the work tool (attachment) includes a gripping device main body attached to the tip of the arm, a pair of gripping claws (sometimes referred to as crushing claws as shown in Patent Document 2), and a work tool claw cylinder for driving the gripping claws to open and close. It is disclosed that it is possible to use a breaker or the like as well as a grapple as a work tool.

JP 2017-8527 A JP 2008-190666 A

In the case where the number of the distal end mounting bases of the second arm 20 is two, the mounting angle θ of the crusher 1 is the center point of the base mounting base 22b serving as the rotation center of the second arm 20 and two It means an angle formed by the center line L1 of the crusher 1 with respect to a line L3 (not shown) connecting the center points of the lines connecting the respective center points of the tip mounting base.

1 crusher 2 tip crushing claw 3 crusher main body portion 4a, 4b crushing claw mounting base 5a, the proximal end of 5b crusher mounting base 6 oil supply port 7 conjugate (auxiliary rod)
8 Annular parts ( annular parts for attachment on both ends of the joined body (auxiliary bar))
9 Main body (bar part of combined body (auxiliary bar))
10 First arm 11a, 11b First arm base end mounting base 20 Second arm 21a, 21b, 21c Second arm tip mounting base 22a, 22b Second arm base end mounting base 23 Bracket 24 Second arm main body Part 30 Boom 31 Boom proximal end mounting base 40 Boom cylinder 41 First arm cylinder 42 Second arm cylinder 50 Work machine

Claims (2)

  A crusher equipped with a crushing claw that is attached to the tip mounting base of the second arm on the tip side in a work machine that is provided with a boom, a first arm, and a second arm in order, and that operates in the opening and closing directions by hydraulic pressure. The crusher is characterized in that a plurality of mounting angles are selected and fixed to the tip mounting base.   A work machine comprising the crusher according to claim 1.

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