KR20240034711A - Screen bucket using rollers - Google Patents

Abstract

The screen bucket using a roller of the present invention is rotatably installed on the bucket body, which is open at the front and rear and has a coupler installed on the upper side for connection to the boom of the excavator, and the bucket body at the rear opening side, and is open at the rear. It is provided with first sorting rollers installed at predetermined intervals on one side of the center of the unit and second sorting rollers installed at predetermined intervals on the other side of the rear opening, and the first and second sorting rollers on both sides are separated from each other. A screen unit including a driving unit for rotating in the direction is provided.

Description

Screen bucket using rollers }

The present invention relates to a bucket, and more specifically, to a screen bucket using rollers for separating selected materials from excavated materials such as gravel and soil contained in the bucket.

In general, excavators are equipped with various attachments such as breakers, buckets, and compactors on the boom to perform various tasks such as excavation, rock crushing, pile construction, and foreign matter removal during road construction, civil engineering work, or building construction.

Among the buckets mounted on and used in such excavators, the screen bucket forms a screen inside the bucket to separate selected materials such as various construction wastes and aggregates contained in the excavated material contained in the bucket or during river excavation work. Performs tasks such as separating water from soil.

In Korea Registered Patent No. 10-1021670, a construction waste sorting bucket is posted. The posted sorting bucket is installed in the mounting space of the bucket main body to sort construction waste that falls when the bucket main body rotates, and is installed at intervals between drum pipes each coupled to the rotation axis of the power operation unit and the outer surface of the drum pipe. It is provided with a drum with section blades that form a space.

And in Republic of Korea Patent Publication No. 2012-0072806, a screen bucket for construction machinery is published. The posted screen bucket includes a lug connected to the bucket cylinder, a lug support portion supporting the lug, a bucket frame including a side plate and an attack plate, a side pillar, a rear curved wall extending curvedly from the side pillar, and the side pillar. A screen unit having a grid member formed between the pillar and the rear curve wall is provided.

As described above, the conventional bucket is equipped with a screen, but it is difficult to improve workability by separating the selected material from earth, construction waste, or excavated soil, and it is difficult to secure mechanical durability. In particular, when separating the selected material from the excavated soil, there is a problem in that the soil is not smoothly discharged from the bucket and is pushed in one direction.

Republic of Korea Patent No. 10-1366423 discloses a rotating screen bucket, and Registered Patent No. 10-1049317 discloses a sieve bucket.

Republic of Korea Patent No. 10-1366423 Republic of Korea Patent Publication No. 2012-0072806 Republic of Korea Patent No. 10-1021670

The present invention is intended to solve the problems described above. The screen is constructed using rollers that are installed vertically and rotated, and the distance between the rollers can be varied, so that excavated materials such as earth, sand, gravel or construction waste contained in a bucket can be removed. The purpose is to provide a screen bucket using rollers that can improve the separation efficiency and durability of the sorted material.

Another object of the present invention is to provide a screen bucket using rollers that facilitates the separation of mines from the excavated material contained in the bucket after excavation and prevents fragments from scattering when the mines are detonated.

The screen bucket using rollers of the present invention to achieve the above object includes a bucket body with the front and rear sides open and a coupler for connecting to the boom of an excavator installed on the upper side;

It is installed to be rotatable in the vertical direction on the bucket main body on the rear opening side, and includes first sorting rollers arranged at predetermined intervals on one side based on the center of the rear opening, and arranged at predetermined intervals on the other side of the rear opening. It is provided with second sorting rollers,

It is characterized by a screen unit including a driving unit for rotating the first and second sorting rollers on both sides in different directions.

In the present invention, the driving part includes a first driving part for rotating the first sorting roller and a second driving part for driving the second sorting roller, and the first driving part is located on the upper and lower sides of the rear opening of the bucket body. Rotational force is transmitted to the first support axes from the first rotation support axes that are rotatably installed on the first and second shaft receivers and support the upper and lower parts of the first sorting rollers, and the first drive motor installed in the bucket body. A first power transmission unit that allows the selection rollers to rotate in the same direction, and the second driving unit are rotatably installed in the third and fourth axle receivers provided on the upper and lower sides of the rear opening of the bucket body to separate the second selection rollers. It is equipped with two rotation support axes that support the upper and lower parts of the rollers and a second power transmission unit that transmits rotational force from the second drive motor installed in the bucket body to the second support axes so that the two sorting rollers can rotate in the same direction. do.

On the outer peripheral surfaces of the first and second sorting rollers, which are installed at a predetermined distance in the vertical direction on the bucket body, at least one device for varying the distance between the first sorting rollers and the space between the second sorting rollers At least one spacing adjustment bar is installed.

The first rotation support axes coupled to the upper and lower sides of each first sorting roller are installed eccentrically with respect to the vertical center axis of the first sorting roller,

The second rotation support shafts coupled to the upper and lower sides of each second sorting roller are installed eccentrically with respect to the vertical center axis of the second sorting roller.

Each sorting roller, where both ends are installed eccentrically, is formed into a predetermined pattern along the length direction. The first and second sorting rollers, each of which is installed eccentrically at both ends, are bent in a predetermined pattern so that they can be rotated while maintaining the same angular spacing along the length direction. The first and second sorting rollers are arranged to be curved from both sides of the rear opening toward the center so that the excavated material can be moved toward the center.

The sorted material contained in the excavated material contained in the screen bucket using the roller according to the present invention can be easily separated through the first and second sorting rollers that rotate or eccentrically rotate. In particular, since the first and second sorting rollers rotate in opposite directions, it is possible to prevent the sorted material or excavated material from being tilted in one direction, and since the driving part is installed on the upper side adjacent to the coupler, when working with a sorting bucket, Durability can be ensured by reducing submersion of the driving part in water.

In particular, the first and second sorting rollers are bent in a predetermined pattern so that both ends can be installed eccentrically on the upper and lower support shafts or rotated while maintaining the same distance, so that the excavated material contained in the bucket can be rocked up and down to increase the sorting force. You can.

1 is a perspective view showing an excerpt of a screen bucket using a roller according to the present invention;
Figure 2 is a front view of a screen bucket using a roller showing a driving unit according to the present invention.
A perspective view showing excerpts of the first and second sorting rollers and the driving unit shown in Figure 3,
Figure 4 is a front view showing another embodiment of the first and second sorting rollers;
Figures 5 and 6 are front views showing embodiments in which the first and second rotation support axes are eccentrically installed on the first and second sorting rollers. ,
Figure 7 is an separated perspective view showing a state in which the first and second rotation support axes are coupled to the first and second sorting rollers by an eccentric coupling part;
Figure 8 is a perspective view showing another embodiment of a screen bucket using a different roller according to the present invention;
Figure 9 is a perspective view showing a state in which the first and second sorting rollers shown in Figure 8 are installed curved toward the center;
Figure 10 is a perspective view showing another embodiment of the first and second sorting rollers installed in the bucket body;
Figure 11 shows an excerpt of the screen unit shown in Figure 10,
Figure 12 is a perspective view showing another embodiment of the screen unit.
Figure 13 is a side view showing another embodiment of a screen bucket using rollers.

Examples of screen buckets using rollers according to the present invention are shown in Figures 1 to 7.

Referring to the drawing, the screen bucket 10 using a roller according to the present invention separates the selected materials, such as gravel, wood, and mines, from the excavated material contained in the bucket body 15 by excavating the ground. .

The screen bucket 10 using a roller according to the present invention has a coupler 11 coupled to the boom of an excavator installed on the upper side, has an internal space with an open front, and a screen unit 30 installed on the rear side. It is provided with an installed bucket body (12). Tooth 13 for excavation is installed on the lower side of the bucket body 12. The teeth 13 may be installed in a jaw shape or a plate shape.

And the screen unit 30 installed on the rear side of the bucket body 12 has an opening 14 on the rear side of the bucket body 12. The bucket body 12 on the upper side of this opening 14 is provided with first and second bearing parts 15 and 16 on both sides centered on the center of the rear opening, and on the lower side of the corresponding rear opening. Third and fourth axle bearing units (17) and (18) are provided. It is preferable that the first and second bearing parts (15) (16) and the third and fourth bearing parts (17) (18) are formed so as not to encroach on the internal space of the bucket body (12).

In addition, the first and third rotation support axes (41) installed at the upper and lower portions of the first sorting rollers (40) are installed in the first and third axis receiving portions (15) (17) so that they can rotate while maintaining the vertical state, and the second , In the 4-axis receiving portions 16 and 18, second rotation support axes 46 installed at the upper and lower portions of the second sorting rollers 40 are installed to be rotatable while maintaining a vertical state.

The rotating shafts supporting both ends of the first and second sorting rollers 40 and 45 have a structure supported by bearings.

The first and second sorting rollers 40 and 45 that are rotatably installed are installed to be spaced apart from each other at a predetermined distance. A driving unit 50 is installed on the bucket body 12 to rotate the first sorting rollers 40 and the second sorting rollers 45 in opposite directions.

The driving unit 50 is installed on one side of the bucket body 12, and includes a first driving unit 51 for simultaneously rotating the first sorting rollers 40 and the second sorting roller 45 for first sorting. It is provided with a second driving part 55 for rotating the roller 40 in a direction opposite to the rotation direction.

The first driving unit 51 is installed on the upper side of the bucket body 12 and connects the first sorting rollers 40 to first rotation support shafts 41 located on the upper side of the first sorting rollers 40. A first power transmission unit 60 is provided to rotate the buckets in the same direction, and a first sorting roller 40 is installed on the bucket body 12 and connected by the first power transmission unit 60. It includes a first driving motor 52 that rotates.

The first power transmission unit 60 includes a first driven gear 61 installed on the first rotation support shafts 41 on the upper side of the first sorting rollers 40, and the first sorting roller ( A first idle gear 62 is installed between the first driven gears 61 of the 40 and engages with the adjacent first driven gears 61 to allow the first sorting rollers 40 to rotate in the same direction. ), which are installed on the rotation axis of the first drive motor 51 and mesh with one of the first driven gear 61 or the first idle gear 62 of one of the first sorting rollers 40 on one side. A driving gear 63 is provided.

And the second driving unit 55 has substantially the same structure as the first driving unit 51. The second driving unit 55 is installed on the upper side of the bucket body 12 and connects the second sorting rollers 45 to second rotation support shafts 46 located on the upper side of the second sorting rollers 45. A second power transmission unit 65 is provided to rotate the buckets in the same direction, and a second sorting roller 45 is installed on the bucket body 12 and connected by the second power transmission unit 65. It includes a second driving motor 56 that rotates.

The second power transmission unit 65 has a structure substantially the same as that of the first power transmission unit 60. The second power transmission unit 65 includes a second driven gear 67 installed on the second rotation support axes 46 on the upper side of the second sorting rollers 45, and the second sorting roller ( Idle gears (67) are installed between the second driven gears (67) of 45) and mesh with the adjacent second driven gears (67) to allow the second sorting rollers (45) to rotate in the same direction. And, a drive gear installed on the rotation axis of the first drive motor 51 and meshed with one of the second driven gear 66 or the idle gear 67 of one of the second selection rollers 45 on one side ( 68) is provided.

The first and second power transmission units are not limited to the above-described embodiments, and may be made of a drive sprocket, a driven sprocket, and a chain attached to them installed on the drive motor, or may be made of a worm and a worm wheel rotated by the drive motor. .

When the first power transmission unit or the second power transmission unit is made of a chain, a double sprocket or two sprockets are installed on the upper side of each sorting roll, and the double sprocket moves the sorting roller 40 in one direction along the direction in which the power is transmitted. The chains are hung alternately so that they can be rotated.

Meanwhile, the first and second sorting rollers 40 and 45 installed as described above may be arranged in a curved state toward the center of the bucket body 12, and the first and second sorting rollers 40 and 45 ) may be formed on the outer peripheral surface of the recesses 40e and 45e. These lead-in grooves 40e and 45e may be formed in a spiral shape along the longitudinal direction of the sorting roller 40 or may be formed in the longitudinal direction of the sorting roller.

However, it is not limited to this, and as shown in FIG. 4, on the outer peripheral surface of the first and second sorting rollers 40 and 45, there is a longitudinal line between the first sorting rollers 40 or between the second sorting rollers 45. A plurality of annular protrusions 40f and 45f for division are formed alternately. This can prevent the sorted material having a shape corresponding to the groove of the first sorting roller 40 or the second sorting roller 45 from being discharged.

And, as shown in Figures 3 and 5, the rotation center axis (D) of the first rotation support shaft 41 installed at the upper and lower portions of the first sorting roller 40 is that of the vertically installed first sorting roller 40. It is installed eccentrically with respect to the central axis (C), and the rotation center axis (D) of the second rotation support shaft (46) installed at the upper and lower portions of the second selection roller (45) is installed vertically. It is installed eccentrically with respect to the central axis (C).

Meanwhile, as shown in FIG. 6, the extension positions of the first and second rotation support shafts 41 and 46 located on the upper side of the first and second sorting rollers 40 and 45 and the first and second sorting rollers The eccentric positions of the first and second rotation support shafts 41 and 46 located on the lower sides of (40) and (45) may be located in opposite directions.

At this time, the eccentric rotation center axis (D) of the first and second sorting rollers (40) (45) connecting the eccentric parts located alternately on the upper and lower sides of the first and second sorting rollers (40) (45) is the first and second They are aligned with the central axes of the rotation support axes (41) and (46), respectively, and each central axis (C) of the first and second sorting rollers (40) (45) has an inclined structure with respect to the eccentric rotation center axis (D). have Accordingly, the separation of the sorting rollers 40 installed and rotating adjacent to each other can be varied at both ends with respect to the center of the adjacent sorting roller in the longitudinal direction.

The first rotation support shaft 41 installed at the upper and lower ends of each first sorting roller 40 and the second rotation support shaft 46 installed at the upper and lower ends of the second sorting roller 45 are as shown in FIG. Likewise, each can be installed eccentrically by the eccentric coupling portion 80. The eccentric coupling portions 80 formed on the upper and lower sides have substantially the same structure.

The eccentric coupling portion 80 is formed in the central axis direction at the upper and lower portions of the first sorting roller 40 or the second sorting roller 45, and has an axial support groove 81 open to the outer peripheral surface of the end, respectively, A shaft fixing block 82 and a cover block 83 supporting the first rotation support shaft 41 or the second rotation support shaft 46 are installed in this shaft support groove 81. And the shaft fixing block 82 and the cover block 83 are inserted into the shaft support groove 81 by adjusting bolts 84 and screwed together with the first and second selection rollers 40 and 45, respectively. . At this time, the first rotation support shaft 41 or the second rotation support shaft 46 installed on the shaft fixing block 82 is eccentric with respect to the central axis of the first sorting roller 40 or the second sorting roller 45. The status quo will be maintained.

And, as shown in FIGS. 8 and 9, first and second sorting rollers 40 and 45 are installed eccentrically on both sides based on the center of the opening 14 of the bucket main body 12 and rotate in different directions. At least one spacing adjustment bar (91) (92) is installed on the outer peripheral surface of each of the bars to partially change the spacing. The spacing adjustment bars 91 and 92 may be installed on the upper and lower portions of the outer peripheral surfaces of the first and second sorting rollers 40 and 45, respectively. It is preferable to install them so that they correspond to each other in order to reduce vibration during rotation. In this embodiment, the first and second sorting rollers 40 and 45 do not necessarily need to be eccentric.

The first and second sorting rollers 40 and 45 are installed curved from both sides of the opening 14 of the bucket body 12 toward the center, so that the excavated material and the selected material gather toward the center when separating the selected material from the excavated material. It is desirable to do so.

In addition, as shown in FIGS. 10 and 11, the first and second rotation support axes 41 and 46 are installed eccentrically on both sides based on the center of the opening 14 of the bucket main body 12 and are aligned with each other. The first and second sorting rollers 40 and 45 rotating in different directions include upper eccentric roller parts 40a and 45a located on the upper side and lower eccentric roller parts 40b and 45b located on the lower side, respectively. and connection roller parts (40c) (45c) connecting them. The first and second sorting rollers 40 and 45 may be formed into a crank shape, but are not limited to this, and may be formed into various shapes that can rotate with each other, for example, a wave shape or an arc shape.

The first sorting rollers 40 having this structure maintain the rotation center axis of the first rotation support shafts 41 and the adjacent first sorting roller 40 in a parallel state. For this, the upper part The upper end side of the eccentric roller part 40a is eccentrically installed on one side of the first rotation support shaft 41 on the upper side, and the lower end side of the lower eccentric roller part 40b is a first rotation support shaft located on the lower side ( 41) and is installed eccentrically on the other side. Accordingly, the first rotation support shaft 41 located at the top and bottom is located on the vertical central axis for rotation.

Like the first sorting roller 40, the second sorting roller 45 is installed with both ends eccentrically on the second rotating support shaft 42.

When the first and second sorting rollers 40 and 45 are formed to have a predetermined pattern in the longitudinal direction as described above, the area where the first sorting rollers 40 are arranged and the second sorting rollers 45 are arranged At least one auxiliary sorting roller 100 may be installed at the boundary of the area. The shape of this auxiliary sorting roller 100 is molded to the same shape as the first and second sorting rollers 40 and 45, and annular disks 101 are installed in the longitudinal direction of this auxiliary sorting roller 100. It can be. The disks 101 are partitioned between the auxiliary sorting rollers 100.

Since the first and second sorting rollers 40 and 45 of this auxiliary sorting roller 100 are installed curved toward the center, it is possible to prevent the sorted material contained in the excavated material from concentrating toward the center.

As shown in FIG. 12, the disk 101 can be installed on all the first and second sorting rollers 40 and 45, and is installed on each of the first sorting rollers 40 and the second sorting rollers 45. The installed disks 101 are installed staggered so as not to interfere with each other. This can prevent the corresponding excavated material from passing between the first sorting rollers 40 or the second sorting rollers 45.

Meanwhile, as shown in FIG. 13, a cover member 120 for opening and closing the front opening is rotatably installed on the bucket body 12 by a hinge axis, and the cover member 120 is installed on the bucket body 12. ) has a structure that is rotated by a driving actuator installed in the hydraulic cylinder (121). This can prevent fragments from scattering around when a mine is exploded in an excavation.

Additionally, a swing unit 130 capable of rotating the bucket body 12 with respect to the coupler may be added between the bucket body 12 and the coupler 11 connected to the boom of the excavator.

The swing unit 130 has a coupler 11 rotatably installed on a support shaft 131 installed on the upper side of the bucket body 12, and the swing gear 132 is installed on the support shaft 131 or coaxially therewith. A hydraulic motor 136, which is installed on the bucket body 12 and has a worm as a drive gear 95 meshed with the swing gear 132, is installed on the coupler 11 and moves the bucket body 12 with respect to the coupler 11. It has a structure that can rotate.

The operation of the screen bucket using a roller according to the present invention configured as described above will be described as follows.

The screen bucket 10 using a roller according to the present invention is installed on the boom of an excavator to select selected materials from the excavated material, such as gravel contained in the soil, land mines from the excavated soil or soil, and tree roots contained in the soil. I can separate the branches.

To explain this in more detail, when excavation work is performed with a bucket mounted on the boom of an excavator and the excavated material is contained in the bucket 10, the first, The first and second drive motors 52 and 56 of the second drive units 51 and 55 operate to rotate the first and second sorting rollers 40 and 45 in opposite directions.

In this way, small-sized earth, dirt or water is discharged between the first sorting rollers 40 and the second sorting rollers 45, and is discharged between the first sorting rollers 40 and the second sorting rollers 45. ), only the selected items that did not pass through are left.

In this process, the first sorting rollers 40 are eccentrically installed on the first rotation support axes 41, and the second sorting rollers 45 are eccentrically installed on the second rotation support axes 46, respectively. Since the spacing is variable, the effect of shaking the excavated material can be obtained.

In particular, as shown in FIG. 6, when the first sorting rollers 40 and the second sorting rollers 45 are installed so that each eccentric rotation center axis (D) is offset from the vertical center axis (C), the first sorting rollers 40 and the second sorting rollers 45 are The gap between the first sorting rollers (40) and the second sorting rollers (45) becomes farther or narrower from the center to both ends, thereby maximizing the separation of the sorted material from the excavated material contained in the bucket body (15).

Meanwhile, as shown in FIG. 8, spacing adjustment bars 91 and 92 are installed on the outer peripheral surfaces of the first sorting rollers 40 and the second sorting rollers 45, which are rotated in an eccentric state, or as shown in FIGS. 10 and 10. As shown in Figure 11, when the first sorting rollers 40 and the second sorting rollers 45 are composed of eccentric upper and lower eccentric roller parts 45a and 45b and a connecting roller part 45c connecting them, As the 1st and 2nd sorting rollers 40 and 45 rotate, the excavated material contained in the bucket body 12 is shaken, so that the sorted material can be smoothly sorted. In other words, the eccentric rotation radii of the first sorting rollers 40 and the second sorting rollers 45 are relatively wide, so that the lower side of the excavated material contained in the bucket body 12 can be rocked to increase sorting efficiency.

In addition, when excavating a river bed or waterway and separating selected materials from the excavated material, the driving part 50 is installed on the upper side of the bucket body 15, so submersion in water can be reduced, thereby improving durability due to flooding. This can be prevented from being damaged, and since the rotation directions of the first selection rollers 40 and the second selection rollers 45 relative to the coupler body 12 are different, vibration caused by rotation in one direction can be reduced. You can.

Meanwhile, when excavating a mine area, there is a risk of explosion during the selection process, so the opening of the bucket body 12 is blocked using the cover member 120, and the bucket body 12 is connected to the swing unit 130. It can be sorted by rotating it in a safe direction.

As described above, in the screen bucket using rollers according to the present invention, the first and second sorting rollers rotating in different directions are spaced apart and installed vertically, so that the excavation pressure and load are applied to the sorting rollers during the excavation process. By acting, it is possible to prevent the first sorting rollers and the second sorting rollers from being damaged, and to improve the sorting efficiency of the sorted material from the excavated material contained in the bucket by the sorting roller.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those skilled in the art will understand that various modifications and other equivalent embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the attached registration claims.

Claims (8)

A bucket body that is open at the front and rear and has a coupler installed on the upper side for connection to the boom of an excavator,
It is rotatably installed on the bucket body on the rear opening side, and includes first sorting rollers installed at predetermined intervals on one side of the center of the rear opening, and second sorting rollers installed at predetermined intervals on the other side of the rear opening. Equipped with sorting rollers,
A screen bucket using rollers, characterized in that it is provided with a screen unit including a driving unit for rotating the first and second sorting rollers on both sides in different directions. According to clause 1,
The first rotation support axes coupled to the upper and lower sides of each first sorting roller are installed eccentrically with respect to the vertical center axis of the first sorting roller,
A screen bucket using rollers, wherein the second rotation support axes coupled to the upper and lower sides of each second sorting roller are installed eccentrically with respect to the vertical center axis of the second sorting roller. According to claim 1 or 2,
On the outer peripheral surfaces of the first and second sorting rollers, which are installed at a predetermined distance in the vertical direction on the bucket body, at least one device for varying the distance between the first sorting rollers and the space between the second sorting rollers A screen bucket using a roller, characterized by an installed spacing adjustment bar. According to clause 1,
A screen bucket using rollers, wherein the first and second sorting rollers are formed into a constant shape along the longitudinal direction so that they can be rotated while maintaining the same spacing. In number 4,
The first and second sorting rollers each have rollers characterized by having a lower eccentric roller part located in the opposite direction to the upper eccentric roller part and a connecting roller part connecting the upper eccentric roller part and the lower eccentric roller part. Screen bucket used. In section 5,
At least one auxiliary sorting roller is installed at the boundary between the first sorting rollers and the second sorting rollers installed in the bucket body, and at least one side of the auxiliary sorting roller and the first and second sorting rollers is provided with a disk at a predetermined interval. A screen bucket using rollers, characterized in that they are installed. The method of claim 1, 2 or 5 to 6,
A screen bucket using rollers, wherein the first and second sorting rollers are arranged to be curved from both sides of the rear opening toward the center so that the excavated material can be moved toward the center. According to paragraphs 1, 2, or 5, 6,
The bucket body is further provided with a cover that is operated by a cylinder and opens and closes the front opening of the bucket body,
A screen bucket using a roller, characterized in that it is provided with a swing unit installed on the coupler and the bucket body to rotate the birchet body.

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