JPH0213389Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Application This invention relates to a lifter with a bucket lifting and reversing device in which a bucket for lifting bulk materials such as coal and ore lumps is reversed at the rising end to discharge the bulk materials.

BACKGROUND ART FIG. 4 is a side view of a conventionally used bucket lifter, in which the upper end of a vertical rail 1 made of a pair of channel materials facing each other in the direction perpendicular to the plane of the drawing is curved into an arc shape. The tip is approximately horizontal
Tilt it down to 45 degrees so that it faces the top of Hopper 2.
The bucket cart 3 for lifting bulk materials is supported in a vertical position by having rollers 4 at the upper part fitted into the vertical rail 1, and rollers of a truck 5 connected to the lower part fitted into the vertical rail 6. The truck 5 is pulled up by the drive chain 7,
When the bucket cart 3 is further rotated around the sprocket 8 and tilted to the downwardly tilted position 3', the loose materials in the bucket cart are discharged into the hopper 2.

In the conventional device described above, since the rotation radius of the bucket 3 on the arc-shaped rail is large, the circumferential speed reaches 2 to 4 times the rising speed on the vertical rail 1, and the contents of the bucket reach the arc-shaped rail. From time to time, it is shaken by the huge centrifugal force. As a result, the load spills from the bucket, so the amount carried by the bucket must be limited, and in order to accelerate to the above-mentioned high circumferential speed, the output and strength of the main parts such as the drive motor, rotating shaft, drive chain, and frame become large. , there are disadvantages such as high cost.

Problems to be Solved by the Invention The purpose of this invention is to reduce the circumferential speed and centrifugal force of the contents of the bucket by reducing the turning radius of the bucket, thereby eliminating the drawbacks of the conventional equipment. We propose a lifter with a reversing device.

Means to Solve the Problem This proposal consists of an inclined rail that is connected to the upper end of the vertical rail, is rotatably supported around a horizontal axis, and has a curved part in the rotation plane, and a drive bogie that moves up and down along the vertical rail. a reversing trolley rotatably connected by a rod and movable from a vertical rail to an inclined rail; a bucket attached to a side of the reversing trolley opposite to the direction of inclination of said inclined rail; The gist of the present invention is a structure of a lifter equipped with a bucket lifting and reversing device, which has a rotating device for reversing the bucket.

Operation The reversing trolley is moved into the inclined rail by the driving trolley, the connection point between the reversing trolley and the rod is aligned with the rotation axis of the inclined rail, and then stopped.Then, the rotation device is activated to move the inclined rail to the inclined rail. If the bucket is rotated in this direction, the bucket has a relatively small radius of rotation around the rotation axis and is reversed from a state of zero initial velocity, so the centrifugal force exerted on the contents of the bucket by the rotation is also small. Therefore, there is no risk of cargo spilling, and the strength and output of the parts and frames used are also small, reducing costs.

Embodiment In FIGS. 1 and 2, the vertical rail 9 is formed by fixing channel materials to both sides of the front part of a vertical frame 12 formed by joining a vertical support 10, a connecting member 11, etc., and connects it to the upper end of the vertical frame 12. The substantially central outer side of the inclined rail 14, which is inclined rearward by about 30 degrees after passing through the curved part 13, is pivoted on a horizontal frame 15 fixed to the upper part of the vertical rail 12 so as to be rotatable in a vertical plane by a pillow 16. support

The driving cart 17 and the reversing cart 18 both have rollers 1
9 and 20 can be moved up and down by fitting into the vertical rail 9, and the upper end center portion of the driving cart 17 and the center of the appropriate position between the upper and lower rollers 20 of the reversing cart 18 are connected by a rod 21 so as to be freely tiltable back and forth. Then, two chains 22 tied to the drive truck 17 are applied to sprockets pivotally supported on the horizontal frame 15, and are rotated by a deceleration motor 23 to raise and lower the drive truck 17 and the reversing truck 18. And reversing trolley 1
8 enters the inclined rail 14 and stops when it reaches the upper limit position where it hits the stopper 24. At the upper limit position, the connecting pin 25 between the reversing cart 18 and the rod 21
(FIG. 3) is concentric with the rotation axis 26 of the inclined rail 14.

The bottom of the bucket 28 is inserted through a fork 27 fixed to the front part of the reversing truck 18 and brought into contact with the stopper 29, and the lower end of the electric cylinder 31 can be tilted back and forth on the brackets 30 fixed to both outsides of the vertical frame 12. The rod 32 is connected to the lower outer side of the inclined rail 14 by a pin 33. 3
4 is a hopper provided at the rear of the vertical frame 12;
5 is a shock damper, and 36 is a stopper.

After loading bulk materials into the bucket 28 at the lowered position shown in FIG.
8 into the inclined rail 14 and stopped at the upper limit position. Next, when the electric cylinder 31 is extended and the inclined rail 14 is rotated backward by approximately 105 degrees,
The reversing cart 18 is reversed while being prevented from descending by the stopper 24, and the contents of the bucket are transferred to the hopper 34.
released within. Since the rotation of the reversing cart 18 is performed relatively slowly from a stationary state by the electric cylinder 31, the centrifugal force applied to the loose objects in the bucket is small and does not cause any movement in the bucket. Therefore, the bucket cart 28 can be sufficiently loaded with bulk materials.

Effects of the invention In this invention, as mentioned above, the lifting and reversing of the bucket are carried out separately to reduce the turning radius of the bucket, which reduces the centrifugal force applied to the contents of the bucket during the reversal, and thus reduces the centrifugal force applied to the contents of the bucket. This eliminates spillage caused by the movement of the contents when the contents are turned over, making it possible to sufficiently load bulk materials into the bucket, and also reducing the output and strength of the lifting chain, drive motor, frame, etc. Since the reversing cart is placed on the inclined rail and rotated in the direction of the inclination, there is no need for a rotating part such as a gear in the rotating device, and there are advantages such as a long service life.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is an elevational view, FIG. 2 is a side view, FIG. 3 is an enlarged longitudinal sectional view of the main part, and FIG. 4 is a side view of a conventional example. 9... Vertical rail, 13... Curved section, 14...
Inclined rail, 17... Drive trolley, 18... Reversing trolley, 21... Rod, 26... Horizontal axis, 28...
Bucket, 31...Rotating device.

Claims (1)

[Scope of utility model registration request] An inclined rail connected to the upper end of the vertical rail, rotatably supported around a horizontal axis, and having a curved part in the rotation plane, and a drive cart that moves up and down along the vertical rail, connected rotatably by a rod. A reversing cart movable from a rail to an inclined rail, a bucket cart attached to a side of the reversing cart opposite to the inclination direction of the inclined rail, and a rotating device that rotates the inclined rail together with the reversing cart to turn the bucket cart over. Lifter with bucket lifting and reversing device.