JPH0639170U - Mobile sorter - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the load on the boom and arm of a hydraulic excavator during sieving. [Structure] A sieve body 3 which is horizontally reciprocally movable is provided at the bottom of a device main body A which is attached to the tip of an arm 1 of a hydraulic excavator and is configured in a bucket shape. The sieve body 3 is horizontally reciprocated in a front-rear direction by a hydraulic drive mechanism 4. In a mobile sorter for sieving objects to be sorted that have been excavated or scooped into the body of the apparatus, a support leg 6 is provided on the bottom rear surface of the body A of the apparatus, and the body of the arm 1 is attached to the tip of the arm 1. After excavating or scooping the objects to be sorted in A, the sieve body 3 is hydraulically driven by the hydraulic drive mechanism 4 in a supporting posture in which the apparatus main body A is held even by the supporting legs 6.
Occurring during the sieving work on the boom and arm of the hydraulic excavator by taking a work posture of sieving the selection target excavated or scooped on the sieve body 3 by horizontally reciprocating in the front-back direction by The load such as vibration can be reduced.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a mobile type sorting machine that is attached to the arm end of a hydraulic excavator and is used for sieving various types of sorting objects at agricultural land development construction sites, boulders, gravel collection sites, or industrial waste treatment plants. It relates to an improvement of the device.

[0002]

[Prior art and its problems]

 Conventionally, as this type of sorting (sieving) device, a mobile sorting device described in Japanese Utility Model Application Laid-Open No. 2-133481 filed earlier by the applicant of the present application is known. In this conventional device, the tip of the arm of the hydraulic excavator is detachably connected and attached by a pin or the like.A connecting bracket is provided at the top, and a sieve body is horizontally reciprocally attached to the bottom of the bucket-like device body. Rocks excavated or scooped into the main body of the equipment at a civil engineering site such as an agricultural land development construction site by horizontally reciprocating in the front-rear direction by a hydraulic drive mechanism including a hydraulic motor provided on the rear upper surface of the equipment main body. It is designed to perform sieving work on gravel, tree roots, sediment, etc. However, in this conventional apparatus, after excavating or scooping the objects to be sorted into the apparatus main body, when the sieve body is horizontally reciprocated to perform the sieving work, as a ground or a falling object, a pile of the ground is dropped on the ground. The main body of the device was separated from the ground (floated) until the sieving work was completed so that the sieve body did not touch the earth and sand piled up on the ground separated from rocks and gravel Since it is carried out in this state, the boom and arm of the hydraulic excavator are not only loaded with the weight of the object to be sorted excavated or scooped in the main body of the hydraulic excavator, but also the vibration generated during the sieving work, especially the tip of the arm. There was a problem that the connection part of was heavily burdened and the part was damaged in a short period of time.

[0003]

[Problems to be solved by the device]

 The present invention has been made in view of such conventional circumstances, and an object thereof is to provide an improved mobile sorter capable of reducing the load on the boom and arm of the hydraulic excavator during sieving work.

[0004]

[Means for achieving the object]

 The technical means taken by the present invention to achieve the above object is to provide a horizontally reciprocating sieve body at the bottom of a bucket-like device body mounted on the tip of the arm of a hydraulic excavator. In a mobile sorter that performs horizontal reciprocating movement in the front-rear direction by a hydraulic drive mechanism for sieving objects to be sorted that have been excavated or scooped into the body of the equipment, support legs are provided on the bottom rear surface of the equipment body. Characterize.

[0005]

[Work]

 According to the above-mentioned technical means of the present invention, after the object to be sorted is excavated or scooped into the main body of the device mounted on the arm tip, it is provided on the bottom rear surface of the main body of the device by operating the hydraulic excavator. The supporting leg is placed in a standing posture in which the supporting leg is erected on the ground or on the object to be sorted, which is screened as a falling object and piles up like a mountain on the ground. That is, the sieve body is horizontally reciprocated in the front-rear direction by a hydraulic drive mechanism in a supporting posture in which the apparatus main body is held by the support legs to perform the sieving work of the selection target excavated or scooped on the sieve body. To do. This reduces the load such as vibration generated during the sieving work on the boom and arm of the hydraulic excavator.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. The apparatus main body A is provided with a connecting bracket 2 which is detachably connected to an end of an arm 1 of a hydraulic excavator (not shown) by a pin or the like on an upper wall. It has a well-known size and shape in the shape of a bucket with the bottom and bottom opened, and the sieve body 3 is horizontally reciprocally movable in the bottom opening, and the sieve body 3 is horizontally reciprocated in the front-rear direction. A hydraulic drive mechanism 4 for moving is installed in the rear part, and an excavating blade (excavating claw) 5 is provided at the bottom front end on the front opening side, so that the hydraulic excavator can move to an appropriate place on the work site by itself. After excavating or scooping the objects to be sorted, the hydraulic drive mechanism 4 horizontally reciprocates the sieve body 3 in the front-rear direction to excavate or scoop in the apparatus main body A at a civil engineering site such as a farmland development construction site. Scooped up Rocks, gravel, tree roots, have become as performing sieving operations gravel or the like these sorting objects, the main body A difference even providing the supporting leg 6 to be retained during sieving operation at the bottom rear surface of the apparatus main body A.

The sieve body 3 is a sieve frame 3a formed into a frame along the bottom opening peripheral edge of the apparatus main body A, and has a predetermined hole diameter that is predetermined according to the size of the object to be sorted at the work site. It is formed by attaching perforated plates 3b in which holes 7 are scattered innumerably and fixed with bolts 8. The sieve body 3 is attached to the apparatus main body A at front and rear positions on both sides of the sieve frame 3a. A suspension plate 9 standing upright at a predetermined height is fixedly arranged, and a rolling roller 10 is pivotally mounted on the inner surface of the upper portion of the suspension plate 9, so that the rolling rollers 10 on both sides of the suspension plate 9 are attached to the main body of the apparatus. By suspending the sieve frame 3 on the front and rear sides of both sides of the side wall plate 11 by horizontally engaging it with a suspension frame 12 having a substantially U-shaped cross section, which is horizontally fixed and fixed to the outside. The plate 9 hangs on the bottom of the main body A of the apparatus, and the rolling roller 10 provided on the hanging plate 9 horizontally in the front-back direction. Backward freely disposed.

A hydraulic drive mechanism 4 for horizontally reciprocating the sieve body 3 in the front-rear direction is a hydraulic motor 4a installed on the upper side of the rear wall of the apparatus main body A, and a connecting member such as a belt or a chain is connected to the hydraulic motor 4a. Similarly, a crankshaft 4c is rotatably connected to the lower portion of the rear wall in the widthwise direction via a bearing 13 and the crankshaft 4c is axially attached to both crank arms (eccentric wheels) 14 of the crankshaft 4c. Equipped with a rolling roller 15 and a vertically elongated guide portion 16 for engaging the rolling roller 15 in a vertically reciprocating manner so as to connect with the crankshaft 4c at intervals of the crank arms 14 at both ends of the crankshaft 4c. It consists of guide frames 4d on both sides that are fixedly arranged on the rear end frame of the sieve frame 3a.The rotational power from the hydraulic motor 4a is transmitted to the crankshaft 4c by the connecting member 4b, and is provided to the crank arms 14 at both ends of the crankshaft 4c. Rolling roller 15 Reciprocates up and down in the guide portion 16 of the guide frame 4d, and the guide frame 4d moves back and forth within the eccentric movement range of the crank arm 14 to move the sieve body 3 with an appropriate stroke and rotation speed. Objects to be sorted by horizontally reciprocating in the front-rear direction, such as rocks, gravel, tree roots, earth and sand, rocks, gravel, tree roots etc. excavated or scooped in the device body A at a civil engineering site such as an agricultural land development construction site. It is so constructed that it rolls back and forth so that only earth and sand smaller than the diameter of the selection hole 7 of the perforated plate 3b is sifted from the hole 7 onto the ground B. A protective cover is attached to the hydraulic drive mechanism 4 such as the hydraulic motor 4a and the crankshaft 4c to protect it from soil and sand.

The support leg 6 is piled up on the ground like the ground by sieving the device body A on the ground B or as a falling object during the sieving work of the object to be sorted excavated or scooped in the device body A. It has a function of holding even the difference on the above-mentioned earth and sand, and is fixed to both side plates 11 of the apparatus main body A by welding or the like so as to project downward from the rear end of the bottom portion at a proper height toward the lower surface of the rear surface. The leg portions 6a on both sides are integrally connected by a connecting member 6b including a connecting plate and a connecting shaft, and the lower end seating plate 6b 'of the connecting member 6b is placed on the ground B. The device main body A is configured to hold the difference at an appropriate height position.

Therefore, according to the mobile sorting apparatus of the present embodiment configured as described above, after excavating or scooping the sorting target into the apparatus main body A attached to the tip of the arm 2 of the hydraulic shovel, During the sieving work to be performed, the main body in which the supporting leg 6 provided across the width direction at the rear end of the bottom rear surface of the apparatus main body A by operation of the hydraulic excavator is placed and erected on the ground B at the work site as illustrated in FIG. Take a supportive posture. That is, the support leg 6 holds the apparatus main body A while holding it, and the sieve body 3 is horizontally reciprocated forward and backward by the hydraulic drive mechanism 4 in this supporting posture to excavate on the sieve body 3. Alternatively, by sifting the scooped objects to be sorted, loads such as vibrations generated during the sieving work on the boom (not shown) of the hydraulic excavator and the arm 2 are reduced. .

[0011]

[Effect of device]

 As described above, the mobile sorter of the present invention is equipped with a supporting body for horizontally reciprocating a sieve body, and a supporting leg for holding the main body is provided on the bottom rear surface of the body. By performing the sieving work with the main body standing upright, it is possible to reduce the load on the boom and arm of the hydraulic excavator, such as vibrations that occur during the sieving work. Therefore, the fatigue (metal fatigue, etc.) of the hydraulic excavator can be reduced and the service life of the excavator can be improved, and the sieving work can be performed while keeping the main body of the device even above the ground. Stable sieving work can be expected compared to the conventional sieving work in which the device body is in a floating state, and it can be expected to improve its workability and perform appropriate sieving work.

[Brief description of drawings]

1 is a side view showing an example of an embodiment of a mobile sorter according to the present invention, showing a part in section.

[Figure 2] Rear view of the same

FIG. 3 is a sectional view taken along line III-III in FIG.

[Explanation of symbols]

A ... Device main body 1 ... Hydraulic excavator arm 3 ... Sieve body 4 ... Hydraulic drive mechanism 6 ... Support leg

Front page continued (72) Creator Mitsuyoshi Taguchi 11 Toyoba Nishinocho, Toyoyama-cho, Nishikasugai-gun, Aichi

Claims (1)

[Scope of utility model registration request] 1. A hydraulic excavator is equipped with a sieve body at the bottom of a bucket-like device main body attached to the tip of the arm so that the sieve body can be horizontally reciprocated, and the sieve body is horizontally reciprocated in the front-rear direction by a hydraulic drive mechanism. What is claimed is: 1. A mobile sorting device for sieving an object to be sorted which has been excavated or scooped in the device body, characterized in that support legs are provided on the bottom rear surface of the device body.