JP2002070057A - Rotary type bucket equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide rotary type bucket, equipment capable of easily replacing screens for changing the mesh size of bucket performing the screening for recovered materials or replacing broken screens. SOLUTION: A fixed side bearing ring of a bearing 16 is installed to the rear portion at inner side of a bucket support frame 10. A bucket 17 assembled inside from a front side opening of the bucket support frame 10 is formed with a cylindrical screen 18 of mesh construction and a bearing coupling plate 19 provided at an interval from a closed end of the screen 18. The bearing coupling plate 19 is coupled detachably to the bearing ring at the rotation side, and the screen 18 is replaced with other screen 18 with a different mesh size by the replacement of the bucket 17 itself.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary bucket device attached to a tip of an arm of a self-propelled work vehicle such as a hydraulic shovel of a construction machine or a tractor of an agricultural machine. The present invention relates to a rotary bucket device capable of collecting collected materials and the like, separating the collected materials by sieving, and mixing foreign substances such as fertilizer and soil.

[0002]

2. Description of the Related Art Generally, when construction waste is scooped,
Foreign substances such as earth and sand are often scooped at the same time. For this reason, in order to recycle construction waste, it is necessary to separate and remove earth and sand from the construction waste.

In civil engineering work, excavation of the ground and separation by sieving may be performed in some cases.
If such recovery and excavation and separation by sieving are performed separately by a dedicated device, efficiency is low and time is required.

[0004] In order to solve such inconvenience, Japanese Patent Application Laid-Open No. H11-181814 proposes a rotary screen bucket device capable of continuously performing collection and excavation and separation by sieving. .

In the rotary screen bucket device, an outer race of a bearing is fixed to a supporting substrate having a bracket connected to an arm of a self-propelled work vehicle such as a hydraulic shovel,
The inner race of the bearing is fixed to the circular end plate of the cylindrical screen bucket, the screen bucket is rotatably supported, and the rotating shaft of the hydraulic motor supported by the support substrate is connected to the screen bucket, The screen bucket is rotated by a motor.

In the above rotary screen bucket device, the screen is replaced with another screen having a different mesh size according to the material to be separated.

[0007]

In the conventional rotary screen bucket device described in the above publication, rotatable screen buckets for sieving are provided with ribs provided at intervals in the circumferential direction of the cylindrical cage. Since both ends of the arc-shaped divided screen are superimposed on the inner surface of the shaped connecting member and the divided screen is fixed to the rib-shaped connecting member by tightening a plurality of bolts, when replacing screens having different mesh sizes, It became necessary to remove a plurality of bolts and replace a plurality of split screens, and replacement of the screen was very troublesome.

Further, since the bolts for fixing the divided screens are tightened from the inside of the screen bucket, the heads of the bolts are often worn due to contact with the sieving material. It has to be removed depending on the cutting method, and the removal of the bolt is also very troublesome.

SUMMARY OF THE INVENTION It is a first technical object of the present invention to make it possible to easily change the screen mesh size of a screen bucket for sieving and replace the screen bucket due to abrasion or breakage of the screen. It is a second technical object of the present invention to provide a rotary bucket device capable of using buckets having different functions.

[0010]

According to a first aspect of the present invention, there is provided a self-propelled work vehicle having a bracket attached to a tip end of an arm thereof, and having a bracket at a front opening. A bucket supporting frame provided with a scooping member, a cylindrical mesh-type bucket provided with a bearing connecting plate at an end on the insertion side, which can be withdrawn and inserted through a front opening of the bucket supporting frame; A bearing rotatably supporting the insertion-side end of the bucket supported by the inner rear portion, and a rotary drive device for rotating the bucket, wherein a bearing connecting plate of the bucket is detachably attached to a rotation-side race of the bearing. It adopted a configuration that was connected to.

According to the above-described structure, the bucket can be removed from the front opening of the bucket support frame by releasing the connection between the bearing-side rotating ring and the bearing connecting plate. In this manner, by making the bucket itself detachable, a plurality of buckets having different mesh sizes are prepared, so that the mesh size of the screen can be easily changed or replaced due to abrasion or breakage of the screen. .

Here, as means for detachably connecting the bearing connecting plate, a fitting ring fitted to the rotating raceway of the bearing is attached to the tip end surface of the bearing connecting plate, and the fitting ring is fitted to the bearing connecting plate. A block fitting hole is provided within the inner diameter circle of the mating ring, a positioning block is provided on the end face of the rotating raceway so as to be able to be inserted into and removed from the block fitting hole, and an engaging groove is formed on the entire outer surface of the positioning block. An engaging body engageable with the engaging groove is movably supported by a guide member attached to the bearing connecting plate, and the engaging body is moved toward the engaging groove by operating bolts. A connection method or a connection method in which a bearing connection plate is bolted to a rotating raceway of the bearing with bolts can be adopted.

In order to solve the second technical problem,
In the second invention, a bucket supporting frame having a bracket attached to an arm end of a self-propelled work vehicle, a scooping member provided in a front opening, and a bucket supporting frame capable of being inserted and removed from the front opening of the bucket supporting frame. A cylindrical bucket having a bearing connecting plate provided at the tip on the insertion side; a bearing supported by the inner rear portion of the bucket support frame to rotatably support the insertion end of the bucket; and rotating the bucket. A rotating drive device, wherein the bucket comprises a mesh-structured sieving bucket and a mixing bucket for mixing two or more materials by rotation thereof, and a bearing connection plate in each bucket is connected to a rotating side of the bearing. It adopts a configuration that is detachably connected to the bearing ring.

With the above construction, the sieving operation can be performed by attaching the sieving bucket to the bucket support frame, and the mixing bucket can be attached to the bucket support frame to thereby perform the sieving operation. Mixing can be performed, allowing the use of buckets with different functions.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a state in which a rotary bucket device A according to the present invention is mounted on a hydraulic excavator 1. Here, the excavator 1 is a boom 2
And a swingable arm 3 connected to a distal end of the boom 2.
Are connected, and a hydraulic cylinder 5 is connected to the bent portion of the two-contact link 4.

As shown in FIGS. 2 and 3, the rotary bucket device A has a bucket support frame 10. The bucket support frame 10 includes an upper frame 10a, a lower frame 10b, a pair of side frames 10c, and a rear frame 10d.
A bracket 11 is mounted on the upper side of the bracket 11, and pin holes are provided on the upper front side and the upper rear side of the two connecting plates 11a provided on the bracket 11.

The bracket 11 is connected to the distal end of the arm 3 through a pin 12a inserted into a pin hole on the front upper side, and is connected to a two-way link 4 via a pin 12b inserted into a pin hole on the rear upper side. Are connected to each other. Such a bracket 11 may be attached to the upper part of the back frame 10d as shown in FIG.

On the front side of the lower frame 10b of the bucket support frame 10, a scooping member 13 composed of a plurality of claws is provided. A cutter 14 is attached to a lower portion of the pair of side frames 10c of the bucket support frame 10. The pick-up member 13 is not limited to a claw, and may be, for example, a plate as shown in FIGS. 9 (I) and 9 (II).

Back frame 10d of bucket support frame 10
As shown in FIG. 5, a bearing support plate 15 is mounted on the inner surface side of the, and a bearing 16 is supported by the bearing support plate 15. The bearing 16 is composed of a fixed-side bearing ring 16a, a rotating-side bearing ring 16b, and a rolling element 16c incorporated between the two bearing rings 16a, 16b. The fixed-side bearing ring 16a is fixed to the bearing support plate 15. I have.

As shown in FIGS. 2 and 3, a bucket 17 is incorporated inside the bucket supporting frame 10. The bucket 17 has a screen 18 having a cylindrical mesh structure having a mouth ring 18a at the front end opening, and a circular bearing connecting plate 19 provided at a distance from the closed end of the screen 18. In forming the bucket 17, here, a mouth ring 18a and a bearing connecting plate 19
A plurality of net connecting bars 20 are provided at intervals in the circumferential direction between the outer peripheral portions of the screen, and both side portions of an arc-shaped divided screen 18b in which a metal linear body is flat-knit between the net connecting bars 20 are bolted. Then, a plurality of divided screens 18b are arranged in a cylindrical shape, and a metal linear body is flat-knitted at a rear end opening of a cylindrical body formed by the plurality of divided screens 18b as shown in FIG. A suitable end screen 18c is attached.

The bucket 17 having the above-mentioned configuration is configured to be able to be inserted into and removed from the front opening of the bucket support frame 10. The bearing connecting plate 19 of the bucket 17 and the bearing 16
A connection mechanism for detachably connecting the bucket 17 is provided between the rotating races 16b.

As shown in FIG. 4 and FIG.
A fitting ring 21 that can be fitted to the rotating raceway ring 16b is attached to the end face of the bearing connecting plate 19 when the bucket is inserted, and two blocks are fitted to the bearing connecting plate 19 within the inner diameter circle of the fitting ring 21. A hole 22 is formed while the bearing 16
A pair of positioning blocks 23 which can be inserted into and removed from each of the block fitting holes 22 is provided on the end surface of the rotating raceway ring 16b. Mating groove 24
Is formed.

A guide member 25 is attached to the inner surface of the bearing connecting plate 19 on the outer diameter side from the block fitting hole 22, and the positioning block 23 is engaged with the guide member 26 along the guide hole 26 formed in the guide member 25. An operation bolt 28 that movably supports an engaging body 27 engageable with the mating groove 24 and presses and moves the engaging body 27 toward the engaging groove 24 of the positioning block 23 is screw-engaged with the guide member 25. I have.

The engaging member 27 can be inserted into and removed from the guide member 25 from one end of the guide member 25. The engaging member 27 is formed with an engaging groove extending to both end surfaces thereof. Orientation ridges, while the guide member 2
5 is formed with an engaging groove in which the engaging ridge engages with the distal end of the operating bolt 28 which is screw-engaged with the operating bolt 5, and the distal end of the operating bolt 28 is rotatably connected to the engaging body 27. 28
May be integrally moved in the axial direction of the operation bolt 28.

The number of positioning blocks 23 is not limited to two. For example, one may be provided at the center of the bearing connecting plate 19. In this case, engagement grooves are provided at opposing positions on the outer periphery, and the guide member is movably supported in each engagement groove.

When the bucket 17 is connected to the rotating race 16b of the bearing 16, the rotation driving device 30
Is rotated by The rotation drive device 30 is provided with internal teeth 31 on the rotating raceway ring 16 b of the bearing 16, and the drive gear 32 meshed with the internal teeth 31 is rotated by the hydraulic motor 33 supported by the bearing support plate 15. .

The rotary bucket device A shown in the embodiment has the above-mentioned structure, and when collecting construction waste materials or excavating the ground and sorting it by sieving, as shown in FIG. In a state where the rotary bucket device A is mounted on the tip, the collected material is scooped into the bucket 17 by the up and down movement of the boom 2, the swing of the arm 3, or the swing of the bucket support frame 10 by the operation of the hydraulic cylinder 5, and the like. After the collection, the hydraulic motor 33 is driven to rotate the bucket 17, and the collected material is sieved by the mesh of the screen 18.

Here, as shown in FIGS. 10 (I) and (II), the guide plate 1 which is inclined toward the front opening of the screen 18 is provided on the tip of the lower frame 10b of the bucket support frame 10.
By providing 9a, the collected material scooped up by the scooping member 13 can be smoothly guided into the screen 18 of the bucket 17, and the collection efficiency can be improved.

When performing the above-mentioned collection and sieving, the screen 18 is replaced with a screen 18 having a different mesh size according to the object to be sieved.

When replacing the screen 18, the operation bolt 28 shown in FIG. 5 is loosened to release the engagement between the engagement body 27 and the engagement groove 24 provided in the positioning block 23, and then the bucket 17 is supported by the bucket. Pull out from the front opening of the frame 10. Then, the replacement bucket 17 is inserted into the inside of the bucket support frame 10 from the front opening thereof, and the bearing connecting plate 1 is inserted.
9 is adjusted so that the positioning block 23 provided in the rotating raceway ring 16b of the bearing 16 can be inserted into the block fitting hole 22 provided in the bearing 9, and the bearing connecting plate 19 is moved to the rotating raceway ring 16b of the bearing 16. The bucket 17 is pushed in the axial direction to a position where the bucket 17 abuts against the end face.

As a result, the fitting ring 21 is fitted to the rotating race 16b of the bearing 16, and the block fitting hole 22 is fitted to the positioning block 23. Groove 24 is engaged body 2
And 7.

After the bucket 17 is pushed in, the operation bolt 2
8, the engaging body 27 is engaged with the engaging groove 24 of the positioning block 23, and the bucket 17 is
Fixed to.

As described above, when the screens 18 having different mesh sizes are replaced, the buckets 17 themselves are replaced, so that the screens 18 can be replaced very easily and in a short time. Further, since the bucket 17 itself can be replaced, the replacement due to wear or breakage of the screen 18 is easy.

Further, the bucket 17 after the exchange is prevented from moving in the radial direction by the fitting of the fitting ring 21 and the rotating race 16b, and the engagement groove 27 of the engaging body 27 and the positioning block 23 is prevented. Is prevented from moving in the axial direction, so that the bucket 17 can be very stably and firmly connected to the rotating raceway ring 16b.

FIG. 7 shows another example of the connecting mechanism 20 for connecting the bucket 17 to the rotating race 16b of the bearing 16. As shown in FIG.
In this example, a plurality of connecting pieces 40 are provided on the outer periphery of the tip end of the rotating raceway 16b of the bearing 16, and a bolt inserting hole 41 is provided in each of the connecting pieces 40 and the bearing connecting plate 19 of the bucket 17, and the bolt inserting holes 41 are provided. , A bolt 43 is inserted into the nut, and the nut 43 is tightened.

The connecting piece 40 may be omitted, a screw hole may be formed in the end face of the rotating raceway ring 16b, and a bolt may be screwed into the screw hole to mount the bucket.

In the example shown in FIGS. 1 to 7, the bucket 17
As shown in FIG. 11, a bearing connecting plate 19 is provided so as to face the closed end of the screen 18 having a mesh structure, but as shown in FIG. It may be closed.

The bucket 17 is not limited to a bucket having a sieving function. For example, the bucket 17 has a fin for stirring and mixing on an inner periphery thereof such that two or more materials such as fertilizer and soil are mixed by rotation. It may be a bucket for mixing. By preparing several kinds of buckets having different functions such as a mixing bucket and a bucket having a sieving function, it is possible to perform sieving work and mixing work of two or more kinds of materials by replacing these buckets. it can.

[0039]

As described above, in the present invention, since the bearing connecting plate provided on the bucket is detachably connected to the rotating raceway of the bearing so that the bucket itself can be replaced, the sieve is separated. In a bucket having a mesh structure having a function, replacement and damage of the mesh size can be easily performed due to damage of the mesh. Further, since the bucket itself is detachable, it is possible to use a bucket having a different function.

[Brief description of the drawings]

FIG. 1 is a front view showing an example of use of a rotary bucket device according to the present invention.

FIG. 2 is a partially cutaway front view of the rotary bucket device shown in FIG. 1;

FIG. 3 is a sectional view taken along the line III-III in FIG. 2;

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 2;

FIG. 5 is a sectional view taken along line VV in FIG. 4;

FIG. 6 is an exploded perspective view showing a connection mechanism of the bucket shown in FIG. 5;

FIG. 7 is a sectional view showing another example of the bucket coupling mechanism.

FIG. 8 is a front view showing another example of the bucket support frame.

FIG. 9 (I) is a longitudinal sectional front view showing another example of the scooping member, and (II) is a perspective view.

FIG. 10 (I) is a longitudinal sectional front view showing another example of the bucket support frame, and FIG. 10 (II) is a perspective view.

FIG. 11 is a longitudinal sectional front view showing another example of a bucket.

[Explanation of symbols]

 3 Arm 10 Bucket support frame 13 Claw 16 Bearing 16b Rotating raceway ring 17 Bucket 18 Screen 19 Bearing connecting plate 20 Connecting mechanism 21 Fitting ring 22 Block fitting hole 23 Positioning block 24 Engaging groove 25 Guide member 27 Engaging body 28 Operation Bolt 30 Rotation drive 43 Bolt

Claims (4)

[Claims] 1. A bucket support frame having a bracket attached to an end of an arm of a self-propelled work vehicle, a scooping member provided in a front opening, and a bucket support frame capable of being inserted and withdrawn from the front opening of the bucket support frame. A cylindrical mesh structure bucket provided with a bearing connecting plate at the end on the side thereof, a bearing supported on the inner rear portion of the bucket support frame to rotatably support an insertion end of the bucket, and rotating the bucket. A rotary driving device for rotating the bucket, wherein a bearing connecting plate of the bucket is detachably connected to a rotating raceway of the bearing. 2. A means for detachably connecting the bearing connection plate, wherein a fitting ring fitted to a rotating raceway of the bearing is mounted on a distal end surface of the bearing connection plate, and the bearing connection plate is provided with a fitting ring. A block fitting hole is provided within the inner diameter circle of the fitting ring, and a positioning block that can be inserted into and removed from the block fitting hole is provided on an end surface of the rotating raceway, and an engaging groove is formed on the entire outer surface of the positioning block. An operating bolt for movably supporting an engaging body engageable with the engaging groove by a guide member attached to the bearing connecting plate and moving the engaging body toward the engaging groove is provided. The rotary bucket device according to claim 1, wherein the bucket device has a configuration. 3. The rotary bucket device according to claim 1, wherein the means for detachably connecting the bearing connection plate is formed by tightening bolts. 4. A bucket support frame having a bracket attached to an end of an arm of a self-propelled work vehicle, a scooping member provided at a front opening, and a bucket support frame capable of being inserted and withdrawn from the front opening of the bucket support frame. A cylindrical bucket provided with a bearing connecting plate at the front end, a bearing supported at the inner rear portion of the bucket support frame and rotatably supporting an insertion-side end of the bucket, and a rotary drive for rotating the bucket The bucket comprises a bucket for sieving a mesh structure, and a bucket for mixing for mixing two or more kinds of materials by rotation of the bucket. A rotary bucket device detachably connected to the wheel.