JPH0569248U - Clamping and dismantling device attached to the arm of hydraulic excavator car - Google Patents

Abstract

(57) [Summary] [Purpose] When attaching a bracket to an arm of a shovel car, etc., it does not take time and the bracket is attached to the arm even if the mounting positions of the pins provided on the arm and the bracket are different. Provided is a gripping and disassembling device which is attached to an arm of a hydraulic excavator car that can be attached. [Structure] A sandwiching and disassembling device 10 attached to an arm of a hydraulic excavator includes a sandwiching claw 1 which is a pair for disassembling a structure or the like.
A clamping and disassembling device for mounting a bracket (21) equipped with (7) and (18) on an arm (11) of a hydraulic excavator, wherein holding pins (22) protruding to both sides of the arm (11) are provided, and a mounting groove (23) is provided at a part of the bracket (21). Holding pin 2
The bracket 21 is fixed to the arm 11 by fitting 2 into the mounting groove 23 and fixing the other part of the bracket 21 to the tip of the arm 11 via a mounting pin 24.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sandwiching and disassembling apparatus for mounting a bracket having a pair of sandwiching claws for disassembling a structure or the like on an arm of a hydraulic shovel car.

[0002]

[Prior Art]

 BACKGROUND ART Conventionally, as a sandwiching and disassembling device attached to an arm of a hydraulic excavator, for example, there is a sandwiching and disassembling device as shown in FIG. The conventional gripping and disassembling device 70 includes a pair of brackets 74 fixed to the arm 71 of a hydraulic shovel car by pins 72 and 73, and an auxiliary link whose upper end is rotatably fixed to the upper part of the bracket 74 by a pin 75. A member 76, an upper link member 78 whose one end is rotatably fixed to the other end of the auxiliary link member 76 by a pin 77, and the other end of the upper link member 78 is rotatably upper part by a pin 79. The upper claw 80 fixed to the upper claw 80, the lower claw 81 paired with the upper claw 80, and the pins 82 and 83 for rotatably fixing the base ends of the upper claw 80 and the lower claw 81, respectively. Reference numeral 84 is a piston rod of a hydraulic cylinder rotatably attached to the auxiliary link member 76 by the pin 77. In order to attach the conventional sandwiching and disassembling apparatus 70 to the arm 71, one end of the auxiliary link member 76 is attached to the piston rod 84 together with the upper link member 78 using the pin 77, and the other end of the auxiliary link member 76 is attached. The end portion was attached to the bracket 74 using the pin 75, and then the arm 71 and the bracket 74 were fixed using the two pins 72 and 73.

[0003]

[Problems to be solved by the device]

 However, in the conventional clamping and disassembling apparatus 70, a large number of pins 72, 73 and 77 have to be used to attach the clamping and disassembling apparatus 70 to the arm 71, which is troublesome. Further, the positions of the pins 72 and 73 for mounting the holding and disassembling device 70 on the arm 71 are different due to different manufacturers, and one pin can be attached, but the other pin cannot be attached. there were. The present invention has been made in view of such circumstances, and when attaching a bracket to an arm of a shovel car or the like, there is no need for labor, and the mounting positions of a plurality of pins provided on the arm and the bracket are different. Another object of the present invention is to provide a gripping and disassembling device which can be attached to the arm of a hydraulic excavator car in which a bracket can be attached to the arm.

[0004]

[Means for Solving the Problems]

 A sandwiching and disassembling device to be attached to an arm of a hydraulic excavator according to claim 1, which is a sandwiching and disassembling device for mounting a bracket having a pair of sandwiching claws for disassembling a structure or the like on the arm of the hydraulic excavator, Holding pins protruding on both sides of the arm are provided, a mounting groove is provided in a part of the bracket to allow the holding pin to be fitted in the mounting groove, and the other part of the bracket is attached to a front part of the arm. The bracket is fixed to the arm by fixing the bracket through the arm. Here, it is preferable that the holding pin has a circular cross section, but it is sufficient that the holding pin can be fitted into the mounting groove, and an elliptical or polygonal pin may be used. The holding pin is preferably attached to the side end of the arm, but may be attached to the side surface of the arm. The mounting groove is provided at an arbitrary position on the bracket according to the position where the holding pin is provided on the arm.

[0005]

[Action]

 In the gripping and disassembling device to be attached to the arm of the hydraulic excavator according to claim 1, first, holding pins protruding to both sides of the arm are fixed to the arm directly or through a mounting metal member by welding or the like. The bracket has a mounting groove in a part of it. Then, regarding the procedure for mounting the holding and disassembling device on the arm of the hydraulic excavator, the mounting groove provided on a part of the bracket is fitted into the holding pin, and the other part of the bracket is mounted on the front part of the arm. Secure with pins. Therefore, even if the manufacturers of the arm and the bracket are different and the mounting positions of the plurality of mounting pins are different, both can be mounted as long as the mounting position of one mounting pin is adapted.

[0006]

【Example】

 Next, an embodiment of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. FIG. 1 is a side view of a holding and disassembling device attached to an arm of a hydraulic excavator according to an embodiment of the present invention, and FIG. 2 is a state of holding pins constituting the holding and disassembling device fixed to the bottom of the arm. FIG. 3 is a perspective view of opposing mounting fittings to which the holding pins constituting the holding and disassembling apparatus of the embodiment of the present invention are fixed. As shown in FIGS. 1 to 3, a sandwiching and disassembling device 10 to be attached to an arm of a hydraulic excavator according to an embodiment of the present invention is an auxiliary link member having one end rotatably attached to an arm 11 via a pin 12. 13, an upper link member 15 having one end rotatably attached to the other end of the auxiliary link member 13 via a pin 14, and an upper link member 15 rotatably to the other end of the upper link member 15 via a pin 16. An upper claw 17 which is one of the attached clamping claws, a lower claw 18 paired with the upper claw 17, and pins 19 and 20 provided at the base ends of the upper claw 17 and the lower claw 18, respectively. A pair of brackets 21 to which the upper claw 17 and the lower claw 18 are attached via the pins 19 and 20, a pair of mounting brackets 21a to be welded to the arm 11, and a pair of mounting brackets 21a are penetrated. Holding pin 22 fixed by the Having a mounting groove 23 provided in Tsu DOO 21, and a mounting pin 24 for fixing the arm 11 and the bracket 21. Reference numeral 25 is a piston rod of a hydraulic cylinder whose end is rotatably attached to the auxiliary link member 13 via the pin 14.

Hereinafter, a method of attaching the holding and disassembling apparatus 10 attached to the arm of the hydraulic excavator according to the embodiment of the present invention to the arm 11 will be described. First, a mounting bracket 21a is already fixed to the arm 11 by welding at its lower portion, and an auxiliary link member 13 mounted via a pin 12 and a piston rod 25 connected to the auxiliary link member 13 are provided. The upper link member 15 is attached. Then, the upper claw 17 is attached to the end portion of the upper link member 15 using the pin 16, and then the mounting groove 23 is fitted into the holding pin 22, and then the positions of the arm 11 and the bracket 21 are adjusted. Both are fixed by the mounting pins 24. Therefore, by using the pinch dismantling device 10 attached to the arm of the hydraulic excavator according to one embodiment of the present invention, it is possible to attach the pin using the two pins without any trouble, and the manufacturer is different. The bracket can be attached to an arm that cannot be attached due to the reason. Finally, in FIGS. 1 and 2, the mounting groove 23 is provided substantially horizontally on the lower side of the bracket 21, but the mounting groove may be provided obliquely with respect to the lower side of the bracket 21. Although the mounting groove is provided in a linear shape, it is not necessarily required to be a linear shape and may be formed in a curved line.

[0008]

[Effect of the device]

 In the gripping and disassembling device to be attached to the arm of the hydraulic excavator according to claim 1, since the mounting groove is fitted into the holding pin provided on the arm and the bracket and the arm are fixed by the mounting pin, the mounting is performed without any trouble. It is possible to save labor. In addition, even if the mounting positions of the mounting pins on the bracket and arm are different due to different manufacturers, the mounting groove fits into the holding pin as long as the mounting position of one mounting pin fits. Can be installed.

[Brief description of drawings]

FIG. 1 is a side view of a holding and disassembling device attached to an arm of a hydraulic excavator according to an embodiment of the present invention.

FIG. 2 is an explanatory view of an attached state of a holding pin which constitutes the holding and disassembling apparatus fixed to the bottom surface of the arm.

FIG. 3 is a perspective view of opposing mounting members to which holding pins are fixed, which constitute the holding and disassembling apparatus according to the embodiment of the present invention.

FIG. 4 is a side view of a conventional clamping and disassembling device.

[Explanation of symbols]

 10 Clamping and Dismantling Device 11 Arm 12 Pin 13 Auxiliary Link Member 14 Pin 15 Upper Link Member 16 Pin 17 Upper Claw 18 Lower Claw 19 Pin 20 Pin 21 Bracket 21a Mounting Bracket 22 Holding Pin 23 Mounting Groove 24 Mounting Pin 25 Piston Rod

Claims (1)

[Scope of utility model registration request] 1. A sandwiching and disassembling device for mounting a bracket having a pair of sandwiching claws for disassembling a structure or the like on an arm of a hydraulic excavator, wherein holding pins projecting on both sides of the arm are provided, and one of the brackets is provided. Fixing the bracket to the arm by providing a mounting groove in the portion to fit the holding pin into the mounting groove, and fixing the other portion of the bracket to the tip of the arm via a mounting pin. A gripping and disassembling device that is attached to the arm of a characteristic hydraulic excavator car.