JPS632516Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a cargo handling vehicle equipped with a bucket, such as a shovel loader, and by providing an agitation mechanism and a cleaning mechanism as attachments in the bucket, transportation work and stirring can be carried out. The purpose is to be able to perform both tasks at the same time and to automatically perform the cleaning task of the bucket.

Generally, when transporting a mixture of two or more types of materials, such as when transporting roof shingles to a construction site, conventionally, lime and straw are mixed together before transporting. In either case, the mixture obtained by the above process is transported to the site using a cargo handling vehicle such as a shovel loader, or the lime and straw are transported separately to the site and the mixing work is performed there. The reality is that transportation and transport work are performed as separate tasks, resulting in significant inefficiency. In addition, as a means to eliminate the above-mentioned problems, a container is mounted on the cargo bed of a car, and a rotating shaft is horizontally suspended between both sides of the container.
A method of carrying out transport work and stirring work at the same time by fixing stirring blades on the same rotating shaft (1987-
No. 35924) has been proposed, but while it is possible to obtain the stirring action using a stirring blade in such a method, when carrying out only the transportation work without using a stirring blade, the same In addition to the stirring blades becoming a hindrance, the stirring blades also become a hindrance when cleaning the container, resulting in a problem in that the work efficiency is impaired.

The present invention is an attempt to improve the conventional situation in view of the above-mentioned actual situation, and the invention is to provide a stirring and mixing mechanism and a cleaning mechanism as attachments to the bucket cart of a cargo handling vehicle equipped with a bucket cart so that they can be attached and detached. Therefore, it is possible to perform stirring and mixing work in parallel with the transporting work, improving the efficiency of the stirring and mixing work, and by removing the stirring and mixing mechanism, it is possible to perform only the transporting work. On the other hand, by installing a cleaning mechanism in place of the stirring and mixing mechanism, the cleaning work of the bucket can be done automatically, that is, a work mode in which transportation and stirring are performed at the same time.
The feature is that the work efficiency is improved by making it possible to selectively obtain a work mode in which only transportation is performed and a work in which cleaning is performed.

That is, the present invention rotatably supports a pair of left and right support shafts on the corresponding side plates of the bucket, and a holder is mounted on the tip of one of the support shafts so that it can move forward and backward along the longitudinal direction. A spring is inserted between the two support shafts so that the holder is normally biased toward the tip of the support shaft, while a stirring blade, cleaning brush, etc. The gist is that a rotary shaft to which the holder is fixed is horizontally suspended in a manner that can be attached and detached freely by moving the holder forward and backward, and a drive mechanism for rotating the shaft is attached to the bucket.

Hereinafter, specific embodiments of the present invention will be described with reference to the illustrative drawings. FIG. 1 is a side view showing the entire shovel loader, where A is the body of the shovel loader, and B is a pivot mounted on the front part of the body A via a hydraulic cylinder C so as to be freely rotatable in the vertical direction. The connecting arm D indicates a bucket which is pivotally connected to the tip of the arm B so as to be rotatable in the vertical direction with respect to the arm B.

As shown in FIGS. 1 and 2, the bucket D includes a bottom plate 1, side plates 2, 2 rising vertically from both widthwise edges of the bottom plate 1 in the shape of a triangular mountain, and the bottom plate 1.
It consists of a back plate 3 extending in the forward direction from the rear end edge along the inclined sides of the side plates 2, 2, and an opening is formed in the front surface. That is, the bucket bag D has a lambda-shaped cross-sectional shape in the grounded state shown in FIGS. 1 and 2.

Bosses 4 and 5 forming bearing portions are fixedly fixed to the center portions of the side plates 2 and 2 so as to be opposite to each other, and a pair of support shafts 6 and 7 are rotatably supported by both the bosses 4 and 5. That is, a drive shaft 6 is supported on the boss 4 as one support shaft, and a driven shaft 7 is supported on the boss 5 as the other support shaft in a cantilevered manner. An oil motor 8 is fixed to the side plate 2 on the side of the boss 4, and the base of the drive shaft 6 is directly connected to the motor 8. Also, the drive shaft 6
A connecting hole 9 in which a keyway 9' is carved is bored in the tip of the connecting hole 9 in the form of a blind hole.

On the other hand, at the tip of the driven shaft 7 is a rotating shaft 15, which will be described later.
A holder 10 is provided for supporting one end of the. The holder 10 is mounted on a shaft so that it can move forward and backward along the longitudinal direction of the driven shaft 7 through the engagement of a spline portion 11 fixed on the driven shaft 7 side and a spline groove 11' cut on the holder 10 side. is provided so as to be biased toward the tip of the driven shaft 7 via a spring 12 interposed between the holder 10 and the driven shaft 7. A connecting hole 14 having a key groove 14' is formed in the tip of the holder 10 in the form of a blind hole corresponding to the connecting hole 9.

Reference numeral 15 denotes the aforementioned rotating shaft, and connecting shaft portions 16 and 17 are provided protruding from both ends of the rotating shaft 15 in correspondence with the connecting holes 9 and 14. Both connecting shaft parts 1
The connecting holes 9, 14 are provided with diameters smaller than the outer circumference of the rotating shaft 15 and protrude through stepped portions so as to be able to be fitted into the connecting holes 9, 14. It is formed by integrally protruding keys 16' and 17' in correspondence with key grooves 9' and 14' carved in 14. By fitting the connecting shaft portions 16 and 17 into the connecting holes 9 and 14, the rotating shaft 15 is horizontally suspended between the driving shaft 6 and the driven shaft 7 in a detachable manner.

On the other hand, a stirring blade 18 is fixedly installed on the outer circumference of the rotating shaft 15. The stirring blade 18 is constituted by a pair of left and right spiral rods 18,'18' formed by spirally winding the rods in different winding directions. Note that the shape of the stirring blade fixed to the rotating shaft 15 is not limited to the above embodiment, and it is possible to select any other shape of the stirring blade.
6 to 8 are drawings showing an example thereof, in which FIG. 6 shows a stirring blade 19 formed by a large number of plate blades 19', and FIG. 7 shows a large number of stirring rods 20. . . . are formed by protruding at regular intervals, and FIG. 8 shows a stirring blade 21 formed by a spiral rod 21' continuous in one direction.

On the other hand, in addition to the stirring blades as described above, it is also possible to use a brush body 22 as an attachment, for example, as shown in FIG.

4 and 5 are drawings showing other embodiments of a method for driving the rotating shaft 15. In the embodiment shown in FIG. At the same time, the same pinion gear 25
The rack 26 is engaged with the rack 26.
By moving the hydraulic cylinder 27 forward and backward through the reciprocating motion of the hydraulic cylinder 27, the rotary shaft 15 is rotationally driven.

In the embodiment shown in FIG. 5, the motor 8' is provided at a position distant from the drive shaft 6, and a chain 13 is stretched between the motor 8' and the drive shaft 6.
The driving force of the motor 8' is transmitted to the drive shaft 6 through the chain 13.

Next, its operation will be explained with reference to the embodiment shown in FIGS. 1 to 3. First, connect the connecting shaft part 17 protruding from one end of the rotating shaft 15 to the driven shaft 7 side, that is, to the holder 1.
By inserting the holder 10 into the connecting hole 14 formed in the center of the shaft and forcibly pressing the rotating shaft 15 toward the driven shaft 7, the holder 10 resists the biasing force of the spring 12 and rotates toward the base of the driven shaft 7. is pushed towards. By obtaining the effect that the holder 10 slides along the driven shaft 7 toward the side plate 2,
On the drive shaft 6 side, a slight clearance is obtained between the tip of the drive shaft 6 and the tip of the connecting shaft portion 16 protruding toward the rotating shaft 15 side. That is, a state is obtained in which the connecting shaft portion 16 can be inserted into the connecting hole 9 formed at the tip of the drive shaft 6.

By fitting the connecting shaft portion 16 into the connecting hole 9 and simultaneously releasing the pressure on the rotating shaft 15 toward the driven shaft 7, the holder 10 is returned to the old position through the return action of the spring 12. Driven shaft 7
The effect of being biased toward the tip of the
Due to the biasing action of the spring 12, a state in which the rotating shaft 15 is horizontally suspended between the driving shaft 6 and the driven shaft 7 is obtained.

Further, in a state where the rotating shaft 15 is horizontally suspended between the driving shaft 6 and the driven shaft 7, by pressing the rotating shaft 15 toward the driven shaft 7 against the biasing action of the spring 12, the driven shaft 7 On the side, a state is obtained in which the holder 10 is pushed toward the side plate 2, while on the drive shaft 6 side, a state is obtained in which the connecting shaft portion 16 is detached from the connection hole 9. Then, with the connecting shaft portion 16 detached from the connecting hole 9 in this manner, the other connecting shaft portion 17 is inserted into the connecting hole 1.
4, the rotary shaft 15 is removed from between the drive shaft 6 and the driven shaft 7 as shown in FIG. 3 again. The stirring blade 18 can be attached and detached as necessary by attaching and detaching the rotating shaft 15 as described above, and it is also possible to replace the stirring blade with an arbitrary shaped agitator blade as necessary.

As shown in Fig. 1, while the bucket D was lowered to the ground position, two or more types of mixtures, such as lime and straw, were scooped out in fixed amounts through the forward movement of the vehicle body A. After that, by starting the motor 8 while rotating the bucket D upward, a state is obtained in which the drive shaft 6, rotating shaft 15, and driven shaft 7 rotate through the driving force of the motor 8. It will be done. Through the rotation of the rotating shaft 15, a state is obtained in which the stirring blade 18 rotates within the bucket D, and the rotation of the stirring blade 18 provides a stirring and mixing action of lime and straw.

Then, in the state where the above-mentioned stirring and mixing action is obtained in the bucket D, or after the above-mentioned stirring and mixing action is obtained, the transported object is transported to the destination by moving the vehicle body A forward or backward. When the transported object is transported to the same destination and discharged by lowering the arm B and rotating the bucket D downward, the transported object is appropriately stirred and mixed by the above-mentioned stirring action. It can be discharged in the same state.

After the above-mentioned agitation mixing and discharging work is completed, the above-mentioned rotating shaft 1 is placed between the driving shaft 6 and the driven shaft 7.
Based on the attachment/detachment operation of step 5, the rotary shaft 15 on which the brush body 22 is fixed is horizontally mounted and the rotary shaft 15 is rotationally driven, thereby obtaining a cleaning action on the inner wall surface of the bucket D through the rotation action of the brush body 23. It is also possible.

In this invention, as described above, the rotary shaft on which the stirring blades are fixed is placed horizontally in the bucket, and the materials to be conveyed in the bucket are stirred and mixed through the rotational action of the stirring blades. It has become possible to simultaneously carry out stirring and mixing operations for the conveyed objects in parallel with the transportation operation, and it has become possible to improve the efficiency of the operation.

In addition, in the present invention, a pair of left and right support shafts are rotatably supported on the corresponding side plates of the bucket, and a holder is mounted on the tip of one of the support shafts so as to be able to move forward and backward along the longitudinal direction. A spring is interposed between the holder and the support shaft to bias the holder toward the tip of the support shaft, while a rotating shaft with a stirring blade fixed between both support shafts can be attached and removed by moving the holder back and forth. By hanging the bucket horizontally, it is possible to remove the rotary shaft and use it as a regular bucket for transportation work that does not require stirring and mixing. By attaching a cleaning brush in place of the stirring blade after the stirring work is completed, the work efficiency can be improved, such as the ability to clean the inside of the bucket. I've reached it.

[Brief explanation of the drawing]

Fig. 1 is a side view showing the entire shovel loader equipped with the stirring mechanism according to the present invention, Fig. 2 is an enlarged perspective view of the bucket part, Fig. 3 is an enlarged exploded view of the stirring mechanism part, Figs. Fig. 5 is an embodiment diagram showing another driving means of the stirring mechanism, Figs. 6 to 8 are perspective views showing other embodiments of the stirring blade, and Fig. 9 is a rotating shaft on which the cleaning brush is fixed. FIG. A...Vehicle body, B...Arm, C...Hydraulic cylinder,
D...bucket, 1...bottom plate, 2...side plate, 3...back plate,
4, 5... Boss, 6... Drive shaft, 7... Driven shaft, 8,
8'...Motor, 9...Connection hole, 9'...Keyway, 10
...Holder, 11...Spline part, 11'...Spline groove, 12...Spring, 13...Chain, 14...Connection hole, 14'...Keyway, 15...Rotating shaft, 16,1
7... Connecting shaft portion, 16', 17'... Key, 18... Stirring blade, 18'... Spiral rod, 19... Stirring blade, 19'...
Plate blade, 20... Stirring blade, 20'... Stirring bar, 21
... Stirring blade, 21'... Spiral rod, 22... Brush body,
25...Pinion gear, 26...Rack, 27...Hydraulic cylinder.

Claims (1)

[Scope of utility model registration request] A pair of left and right support shafts are rotatably supported on the corresponding side plates of the bucket, and a holder is mounted on the tip of one of the support shafts so that it can move forward and backward along the longitudinal direction, and the holder is mounted between the holder and the support shaft. A spring is interposed between the two support shafts to urge them towards the tip of the support shaft, while a rotating shaft on which stirring blades or cleaning brushes are fixed is attached and detached between the two support shafts by moving the holder back and forth. A cargo handling vehicle comprising a bucket which can be freely hung horizontally and has a rotary drive mechanism connected to one of the support shafts.