JP2865636B2 - Open / close bucket device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an openable / closable bucket device which can be attached to a tip of an arm of a power shovel.

[0002]

2. Description of the Related Art Conventionally, a bucket type scooping tool suitable for excavation has been attached to the tip of an arm of a power shovel.

[0003]

However, although the scooping tool can scoop out the excavated material, such as earth and sand, after excavation, it has a drawback that it cannot be used for other operations at all.

The present invention solves the above-mentioned drawbacks, and can not only scoop up soil but also easily store and transport soil and concrete, and make the bucket pivotable at any angle. It is an object of the present invention to provide a bucket device that can be turned.

[0005]

To solve the above problems BRIEF SUMMARY OF THE INVENTION This invention provides cross by <br/> bucket body and the opening and closing movable bucket is rotated around their pivot portion An openable and closable bucket device, wherein a bucket portion composed of the bucket body and the movable bucket is pivotable with respect to a chassis attached to a tip of an arm portion of a working machine such as a power shovel. An internal gear of the bucket portion is rotatably supported via a bearing inside a ring portion protruding from a lower surface of the mounting chassis. Outside the internal gear, a bucket portion side and the ring portion are connected to each other. A seal provided between the first and second bearings is provided.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a specific structure for achieving the above object will be described with reference to the drawings.

In an openable / closable bucket device comprising a main body bucket 1 and an opening / closing body 2 pivotally supported on the main body bucket 1, an opening is provided in a side portion thereof, and a blind is provided so as to close the opening. A plate 3 is provided. At the center of the piston rod end of the hydraulic cylinder 12 for opening and closing the opening and closing body 2,
Pin engagement. The eyepiece at the end of the opening / closing body 2 on the cylinder side of the opening / closing hydraulic cylinder 12 is engaged with the cylinder mounting pin 6. The hydraulic cylinder 12 supported by the main body bucket chassis 27 located on the upper surface of the main body bucket 1 is provided with the cylinder mounting pin 6 at the hydraulic cylinder receiver 15. The opening / closing body hydraulic cylinder mounting pin 4 located at the upper end of the opening / closing body 2 is supported by a hydraulic cylinder shaft receiver 16 integrated with the opening / closing body 2.

An opening / closing body upper opening 17 is provided on the opening / closing body 17 at a position where the upper surface of the main body bucket 1 and the upper surface of the opening / closing body 2 face each other. Main body bucket upper opening 1 on main body bucket 1 side
4 are provided. The body bucket upper opening 14;
The main body bucket 1 is formed by the opening / closing body upper opening 17.
In contrast, when the opening / closing body 2 is in a closed state, the opening is made large so that cement or the like can be injected from above.

The mounting portion 9 and the mounting portion 10 for mounting to the tip of the arm of the power shovel or the like are provided with a mounting adjusting member 9 'at the mounting portion 9, and the mounting adjusting member 10' is mounted at the mounting portion 10. Provided. The bracket 2 in which the mounting portion 9 and the mounting portion 10 are erected on a mounting chassis 29.
The rotary joint 11 is provided at a central portion between the brackets 29 ′ on the mounting chassis 29, which is provided on the mounting chassis 29, and is provided on the mounting chassis 9 ′. The rotary joint 1
1 is connected to a piping case 13 disposed on the upper surface of the mounting chassis 29 by an oil supply pipe.

On the other hand, the oil supply pipe is passed through the rotary body 20 and the hydraulic stopper 3 attached to the hydraulic cylinder 12 is removed.
0, and the hydraulic motor 7 disposed at an appropriate position on the mounting chassis 29 is supported by a motor support 55. A small gear is axially mounted on the rotation shaft of the motor 7, and the small gear is used to rotate the rotating body 20 located above the opening / closing bucket portion including the opening / closing body 2 and the main body bucket 1.
Is rotated.

In order to lock the rotating body 20 with respect to the mounting chassis 29, a lock pin 72 is projected and locked in a lock hole 71 of a lock portion 20 'in a configuration shown in FIG. . That is, the pressure oil is supplied to the hydraulic oil inlet / outlet 57, the pressure oil flows into the oil sump chamber, and the oil pressure is applied to the pressure receiving portion of the step portion 75 provided on the piston 72,
The spring 74 is pressed against the expanded state of the spiral spring 74 interposed between the piston 73 and the bottom of the cylinder 8, and the lock pin 72 provided integrally with the tip of the piston 73 locks the rotating body 20. It is configured to be separated from the hole 61.

As shown in FIGS. 24 and 25, a shrinkable body 60 is formed around the periphery of the mounting chassis 29 in a band shape.
Is provided. A hydraulic block is disposed on the inner peripheral surface of the contracted body 60 via a seal portion 62, and a hydraulic oil port 58 is provided in the hydraulic block. An oil sump chamber 59 is provided at the tip of the hydraulic oil inlet / outlet 58, and the oil sump chamber 59 is provided.
When the pressurized oil is supplied, the contracting body 60 spreads outward to create a clearance in the lock portion 63, and the locked state is released. The locking portion at the lower position of the contracting body 60,
A hydraulic block having the hydraulic oil inlet / outlet 58 engaged with the semi-fixed portion 61 provided on the rotating body 20 is fixed to the mounting chassis 29 by fixing bolts 64. That is, in a state where the contracting body 60 is contracted, the rotating body that is in close contact with the hydraulic block is in a locked state. When the rotating body is released as described above, rotation is allowed.

In FIG. 25, the seal 80 is projected from the outer periphery of the internal gear 56 ', and is brought into contact with the lower surface of a ring portion 81 which projects downward along the outer peripheral edge of the mounting chassis 29, whereby the internal gear is Earth and sand are prevented from entering the bearing 82 on the outer periphery of 56 '.

As another embodiment of the clutch device different from the clutch device shown in FIGS. 24 and 25, a hydraulic oil inlet / outlet 58 is provided as shown in FIGS. 26 and 27. A water pool 59 is provided inside the hydraulic block. A pin is inserted into a cylinder provided in the pool chamber 59 to form a pin cylinder portion 65.

In FIG. 26, the conical portion at the tip of the pin cylinder portion 65 is in contact with a cylinder contact portion 66 'at one end of a lock body 66 comprising a bell crank lever. The other end of the lock 66 is in contact with the lock 67. Similarly, a lock body 66 is disposed to face the axis of the pin cylinder 65. These two lock bodies 66 are drawn toward each other by a pull spring 68 and are always in strong contact with the lock portion 67 so that relative movement can be suppressed.

In FIG. 27, a plate 69 is interposed between the mounting chassis 29 and the lock member 66.

The embodiment shown in FIGS. 24 to 27 is a system in which the clutch is disengaged by the action of pressure oil.

A main body bucket side cutter 23 is provided at the tip of the side of the main body bucket 1.

An opening / closing body side cutter 24 is provided at the end of the side of the opening / closing body 2, and a blade 2 is provided between the side cutters 24.
5, 26 are provided. As shown in FIG. 23, side cutter lock portions 53 and 53 'are provided at upper positions of the tips of the side cutters 23 and 24, respectively.

As shown in FIG. 22, a blade mounting body 35 is provided at the tip of the opening and closing body flat plate 34. The blade 26 is overlapped and fixed with a pin so as to be able to overlap the zigzag section of the blade attachment body 35, and a blade lock portion 54 is formed at the inner protruding end of the tip of the blade.

As shown in FIG. 20, the hydraulic motor 7 is fixed to a motor support 55 provided at an appropriate position of the mounting chassis 29 by a mounting bolt. A drive gear 56 is attached to a rotary shaft provided on the hydraulic motor 7, and the drive gear 56 meshes with a passive gear 56 ′ attached to the rotating body 20. Thereby, the driving force of the hydraulic motor 7 can be transmitted to the rotating body 20 via the driving gear 56 and the passive gear 56 '. Further, the portion of the opening / closing body 2 attached to the portion of the rotating body 20 can be replaced.

FIGS. 8 to 13 show an embodiment thereof.

FIG. 8 shows the rotating body 20 at the upper position. The hydraulic cylinder 12 is disposed below the rotating body 20, and the main body bucket 1 and the fork body 38 are disposed below the hydraulic cylinder 12. A claw 37 is attached to the tip of the main body bucket 1, and a claw 37 ′ is attached to the tip of the fork body 38.

The space of the side portion formed between the main body bucket 1 and the fork body 38 is closed by the blind plate 3, or is opened as shown in FIG. The opening / closing body 2 can be replaced with a desired one.
That is, in FIG. 11, the fork body 38 is used.
As shown in FIG. 13 and FIG.
It can also be 39 '.

FIGS. 6 and 7 show a pivotable openable and closable bucket device to which the present invention is applied. In particular, it specifically shows a means for strengthening a portion that needs to be increased in strength to prevent breakage during use. That is, the portion of the piping case 13 is strengthened, and the portion of the hydraulic cylinder receiver 15 is strengthened. Further, the portion of the hydraulic cylinder shaft receiving body 16 is strengthened. Further, it is shown that the portions of the main body bucket support 31 and the opening / closing body support 32 have a thick structure by a reinforcing plate or the like. The main body bucket flat plate 3 is attached to the main body bucket support 31.
3, and an open / close body flat plate 34 is connected to the open / close body support body 32, so that the flat plate portions can be hit by soil. Furthermore, a blade 26 is attached to the tip of the flat plate portion to ensure the engagement of the main body bucket and the opening / closing body portion, and also allows the replacement thereof. The opening / closing body hydraulic cylinder mounting pin 4 and the cylinder mounting pin 6 are locked with pin stoppers 36 for retaining.

As shown in FIGS. 14 and 15, the hydraulic pipe 4 is guided by the arm from the tip of the power shovel to the oil reservoir of the power shovel.
2 is attached to the arm by a hydraulic pipe attachment 44. A swivel joint 40 is provided at the tip of the hydraulic pipe 42. Hydraulic hoses 41 are interposed between the ends of the hydraulic pipes 42 which are located in front and rear of each other and located at an indirect portion of the arm to which the ends are connected. Hydraulic pipe joints 43 and 43 'are disposed at appropriate positions on the hydraulic pipe 42. In the piping around the valve, a magnet 45 is provided at one end of the switching valve 46. The operation valve 47 and the switching valve 46
And are connected by a hydraulic pipe.

FIG. 16 is an assembly diagram of a piping system for supplying pressure oil to the mother driving motor 48 and the mother driving cylinder 49, and FIG. 17 shows a flow sheet of a hydraulic pipe. . These include a circuit for rotating the rotating body, a circuit for opening and closing the opening and closing body by the action of the hydraulic cylinder, and any one of the plurality of driving bodies when one of the driving bodies is moved. And a circuit that can apply hydraulic pressure.

First, the switching valve 46 and the operation valve 47 are operated so that the mother driving motor 48 is operated. In the other switching position of the switching valve 46, the pressure oil is supplied to the lock cylinder 8 through the swivel joint 40. As a result, the piston is retracted against the built-in compression spring,
This releases the lock relationship between the rotating body 20 and the mounting chassis so that the rotating body 20 can rotate freely. That is, the unlocking hydraulic pressure is applied to the lock cylinder 8, and the hydraulic motor 7 is driven by the pressure oil supplied via the hydraulic pressure adjusting body 8 '.

In addition to the drive circuit for the hydraulic motor 7, the mother drive cylinder 49 can be operated in parallel via an operation valve 47 and a switching valve 46. In other switching positions of the switching valve 46, the hydraulic cylinder 12 is operated via the swivel joint 40, the rotary joint 11, the hydraulic stop valve 30, and the opening / closing body 2 with respect to the main body bucket 1. Open and close.

FIGS. 18 and 19 are wiring diagrams for moving the magnet, which are characterized in that their switches are small and can be easily attached to any operation handle. In the drawing, a magnet insertion switch 50, a transistor power distribution body 51, and a power distribution operation switch 52 are shown, and are connected to the magnet 45 and the switching valve 46.

At the tip of the rotating device shown in FIG. 5, a blade 26 is located at the center and the blade 25 is located at both sides of the blade 26 so that the blade is particularly strong. ing.

As is apparent from the side view of the pivotable openable / closable bucket device according to the present invention shown in FIG. 4, each side portion formed by the main body bucket 1 and the openable / closable body 2 is formed. The blind plate 3 for closing the opening is fastened by a blind plate fixing pin 21 at the center of the blind plate 3 on the side of the opening / closing body 2. Blind plate fixing pins 22 are arranged above and below the blind plate fixing pins 21. The blind plate 3 is always fastened and fixed to the opening / closing body 2, and when grasping a long object or a lump, the blind plate 3 is detached and used.

[0033]

According to the present invention, since the bucket portion is pivotable, it is possible to perform a work of gripping a rod-shaped material such as wood or concrete pipe and installing it at an arbitrary angle. In the device provided with such a turning mechanism, a seal is provided on the outer side of the internal gear that constitutes the turning mechanism to protect the bearing that supports the bucket portion, so that sediment can be prevented from being caught in this portion. .

[Brief description of the drawings]

FIG. 1 is a plan view of a power shovel to which a pivotable openable / closable bucket device according to the present invention is attached at the tip thereof.

FIG. 2 is a side view of the power shovel shown in FIG.

FIG. 3 is a plan view of a pivotable openable and closable bucket device according to the present invention.

FIG. 4 is a side view of the opening / closing bucket device shown in FIG. 3;

FIG. 5 is a front view of the openable / closable bucket device shown in FIGS. 3 and 4.

FIG. 6 is a plan view of the opening / closing bucket device cut along the line AA of FIG. 4, showing a mounting portion of the hydraulic cylinder in detail, and FIG. 7 is a longitudinal section of the pivotable opening / closing bucket device according to the present invention; FIG.

FIG. 8 is a side view of the openable and closable bucket device of the present invention, which is characterized by a portion of a claw for excavation.

FIG. 9 is a front view of the opening / closing bucket device shown in FIG. 8;

FIG. 10 is a side view of a structure in which an opening and closing body of the openable and closable bucket device shown in FIG.

FIG. 11 is a front view of the structure shown in FIG. 10;

FIG. 12 is a side view of the openable / closable bucket device of the present invention in which a mesh bucket is used as an open / close body.

13 is a front view of the openable / closable bucket device shown in FIG.

FIG. 14 is a plan view of an arm attached when the openable bucket device of the present invention is used.

FIG. 15 is a side view of the arm shown in FIG. 14;

FIG. 16 is a plan view showing piping around a valve of a hydraulic system according to the openable / closable bucket device of the present invention.

FIG. 17 is a circuit diagram of a hydraulic system for moving a hydraulic cylinder for moving an opening / closing body and an oil motor for rotating a bucket body.

FIG. 18 is a view showing a position of a switch for moving a magnet arranged around a driver's seat, and is a plan view of a cab showing that a small switch is attached to an operation handle. It is.

FIG. 19 is a side view showing the inside of the cab shown in FIG. 18.

FIG. 20 is an essential part cross-sectional view showing in detail an oil motor of a power source for rotating a rotating body, which is a main part of the bucket device of the present invention, and a chain by gear transmission.

FIG. 21 is a sectional view of a pin lock device for a rotating body.

FIG. 22 is a cross-sectional view showing a replaceable state of a portion of the tip end of the bucket that is easily worn.

FIG. 23 is a side view showing that the long object has a projection for preventing the long object from slipping down when the long object is held in the same manner as the hanging portion 54 shown in FIG. 22; is there.

FIG. 24 is a plan view showing that the hydraulic pressure is applied from the hydraulic oil inlet / outlet 58, the hydraulic pressure is applied to the oil sump chamber 59, a gap is formed in the lock portion 63, and the locked state is released.

FIG. 25 is a longitudinal sectional view of the same.

26 shows a state in which the clutch 66 presses the lock portion 67 to maintain the locked state, and the pin is moved by the hydraulic oil pressure to the cylinder cutting portion 6. FIG.
It is principal part sectional drawing which made it possible to release the locked state by pushing 6 '.

FIG. 27 is a longitudinal sectional view taken along the line BB of FIG. 26.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body bucket 2 Opening / closing body 3 Blind board 4 Opening / closing body hydraulic cylinder mounting pin 5 Opening / closing body mounting pin 6 Cylinder mounting pin 7 Hydraulic motor 8 Lock cylinder 8'Hydraulic oil pressure adjusting body 9 Mounting section 9 'Mounting adjusting body 10 Mounting section 10 'Mounting adjustment body 11 Rotary joint 12 Hydraulic cylinder 13 Piping case 14 Main body bucket upper opening 15 Hydraulic cylinder receiver 16 Hydraulic cylinder shaft receiver 17 Opening / closing body upper opening 18 Hydraulic hose 19 Rotating body mounting body 19' Rotating part 20 Rotating body 20 'lock part 21 Blind plate fixing pin 22 Blind plate fixing pin 23 Main body bucket side cutter 24 Opening / closing body side cutter 25 Blade 26 Blade 27 Main body bucket chassis 27' Opening / closing body chassis 28 Opening / closing body stopping chassis 29 Mounting chassis 29 ′ Bracket 30 Hydraulic stopper 31 Body bucket Bracket 32 Opening / closing body support body 33 Main body bucket flat plate 34 Opening / closing body flat plate 35 Blade mounting body 36 Pin stop 37 Claw 37 'claw 38 Fork part 39 Net part 39' Net part 40 Swivel joint 41 Hydraulic hose 42 Hydraulic pipe 43 Hydraulic fitting Body 43 'Hydraulic fittings 44 Hydraulic pipe fittings 45 Magnet 46 Switching valve 47 Operating valve 48 Mother drive motor 49 Mother drive cylinder 50 Magnet switch 51 Transistor power distribution body 52 Power distribution body operation switch 53 Side cutter lock 53' Side cutter Lock part 54 Blade lock part 55 Motor support body 56 Drive gear 57 Hydraulic oil inlet / outlet 58 Hydraulic oil inlet / outlet 59 Oil reservoir 60 Contractor 61 Semi-fixed part 62 Seal part 63 Lock part 64 Fixing bolt 65 Pin cylinder part 66 Lock body 66 ' Cylinder contact part 67 Lock part 68 Tension spring 69 Plate 71 Lock hole 72 Lock pin 73 Piston 74 Helical spring 80 Seal 81 Ring part 82 Bearing

Claims (1)

(57) [Claims] 1. A bucket body and a movable bucket for opening and closing.And
Are pivoted about their pivots
The bucket body and movable bucket
The bucket part consisting of the
Swivel to the chassis mounted on the tip of the arm of the industrial machine
An openable and closable bucket device comprising:
Inside the ring that projects from the bottom of thePart of
The internal gear is rotatably supported via a bearing, and the internal gear
Outside the car, bucketPart sideBetween the ring part
Wherein a seal for covering the bearing portion is provided.
Openable bucket device.