JPS634026Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a skip hoist device for transporting bulk materials such as coal and ore to a high place and feeding them into required equipment.

Conventional technology Conventional skip hoist devices have been used to transport materials using handcarts, etc., as shown in Figure 3.28 in "Cargo Handling Mechanical Engineering Handbook" published by Corona Co., Ltd., September 30, 1970, pages 278 to 281. The cargo may be dropped onto a skip bucket, which is connected to a guide rail with a steep slope so that it can be moved up and down using a winch, etc.
As shown in , the transported items are stored in the hopper,
It was common practice to open and close the take-out port at the bottom of the hopper and drop the cargo into the skip bucket, then transfer the object to the skip bucket and transport it to a higher location.

That is, in conventional skip hoist devices, it has been common practice to transfer objects that have been transported to the same device to a skip bucket attached to the skip hoist device. Therefore, a process of transferring the transported objects is required, and when handling objects with a capacity of about 10 tons or more at a time, the impact on the skip bucket during transfer becomes large, which causes damage to the surrounding surroundings. There were drawbacks such as the need to increase the size of the equipment to accommodate this.

Problems to be Solved This invention was developed in view of the above-mentioned conventional drawbacks.
It is an object of the present invention to provide a skip hoist device which can eliminate the process of transferring objects and can handle even large-capacity objects at once.

Means for Solving the Problems In order to achieve the above object, the present invention provides an elevating frame that can be moved up and down along guide rails arranged at a predetermined inclination angle, and the elevating frame is connected to a hoisting chain. A roughly U-shaped tilting frame is horizontally connected to the left and right pair of lifting bodies and the lifting bodies are pivotally connected to the front part via a connecting shaft, and opens at the rear to allow transfer of the transport bucket. At the same time, a tilting trunnion is provided to protrude laterally on both rear sides of the tilting frame, and a tilting support arm is pivotally attached to both sides of the upper side of the guide rail, and the support arm A tilting device is provided in which the support arm can be rotated upside down forward by linking a tilting operation cylinder, and the tilting trunnion of the lifting frame is engaged with and supported on the free end side of the tilting support arm. The present invention relates to a skip hoist device having a structure in which a receiving recess is provided.

Embodiment Next, an embodiment of the present invention will be described with reference to the drawings. In the figure, 1 is a skip hoist device, and this skip hoist device 1 includes a guide rail 2 arranged in a girder at a predetermined inclination angle α, and this guide. It is composed of a lifting frame 16 that is moved up and down along the rail 2 and a tilting device 33 provided on the upper end side of the rail 2.
A transport path 5 is provided for transporting a cart 3 on which a transport bucket 6 is placed perpendicularly to the transport path.
A transfer conveyor 32 is provided at the same level as the conveyor 4 provided above, and is provided to be able to transfer the transport bucket 6 on the trolley 3 to the lifting frame 16. Also,
The transport bucket 6 is formed in the shape of a bottomed box capable of loading a predetermined capacity of transported goods, and has a slanted chute surface 8 formed on the front side of the input port 7, and also has a slanted chute surface 8 formed on the front side of the input port 7 side. Elongated holes 9 for tightening pins are formed on both sides of the bottom side.

Reference numeral 2 denotes the pair of left and right guide rails described above, and the drive shaft 11 of the hoisting device 10 is attached to the lower end side of the guide rails.
is rotatably supported, and hoisting drive sprockets 12 are attached to both sides of the coaxial shaft 11. In addition, a shaft 1 is provided on the upper end side of the guide rail 2.
3 is rotatably supported, and a driven sprocket 14 is attached to the coaxial 13 in correspondence with the hoisting drive sprocket 12, and both sprockets 1
A hoisting chain 15 is hung on each of 2 and 14, and both chains 15 are connected to a lifting frame 16, respectively.

16 is the above-mentioned lifting frame, and this lifting frame 1
Reference numeral 6 is composed of left and right lifting bodies 17 and a tilting frame 24 that is rotatably attached between both bodies 17.

17 is the left and right lifting bodies of the lifting frame 16,
Since it is formed in a symmetrical shape, the main body 1 on the right side of the figure
7, reference numeral 18 is a base formed in a shape that follows the guide rail 2, and a column 19 for preventing the forward tipping of the transport bucket 6 is provided vertically at the front part of the base 18, and the column 19 and the base are vertically provided. stand 18
A substantially triangular protective wall 20 is integrally formed between the two. In addition, a tilting frame 2 is provided at the rear of the base 18.
A horizontal support portion 21 for horizontally supporting 4 is formed. A connecting shaft 22 is attached between the front parts of the base 18 of the left and right lifting main bodies 17 formed in this way, so that they are connected to each other, and this base 1
A tilting frame 24 is rotatably pivotally attached to the connecting shaft 22 between the shafts 8 and 8, and guide rollers 23 that roll along the guide rail 2 are rotatably attached to both ends of the same shaft 22. A guide roller 23 is also rotatably attached to the rear side of the base 18 via a shaft.

Reference numeral 24 denotes a tilting frame which receives and places the transport bucket 6 and is provided so as to be tiltable with respect to the elevating main body 17. The left and right support members 26 extend rearward from both sides of the base member 25, and are formed in a substantially U-shape that opens rearward so that the transport bucket 6 can be received and placed from the rear. A block-shaped engagement support part 27 is integrally formed on the rear side of the body, which protrudes laterally and is supported in contact with horizontal support parts 21 formed on the left and right lifting bodies 17. Engagement support part 2
7 is further provided with a tilting trunnion 28 that protrudes laterally from the side surfaces of the left and right lifting main bodies 17. Further, on the rear sides of the left and right support members 26, there are tightening pins 29 that are opposed to each other and that engage with the elongated tightening pin holes 9 of the transport bucket 6, as shown in FIG. It is set up so that it can be accessed.

The ends of the hoisting chain 15 are fixed to the front and rear parts of the left and right elevating bodies 17 of the elevating frame 16 formed in this way, and the tilting frame 24 is moved along the guide rail 2 by the drive of the hoisting device 10. It is provided to be movable up and down while maintaining a horizontally supported state, and when the elevating frame 16 stops at the lower stop position of the guide rail 2, the tilting frame 24 is moved to the transport bucket cart 6 on the trolley 3.
It is configured to stop at a position where it can be transferred via the transfer conveyor 32.

33 is a tilting device provided on the upper side of the guide rail 2. Since this tilting device 33 is constructed symmetrically on both sides of the guide rail 2, the device 33 on the right side of the figure will be explained. The support arm 34, which is a repurposed support arm, has a predetermined length, and its base is pivotally connected via a shaft 36 to a bracket 35 provided at a predetermined position on the side of the guide rail 2, and its free end A bracket 37 is attached to a predetermined position on the lower surface of the side, and the tip of a piston rod 39 of a tilting actuation cylinder 38 whose base is pivoted to a predetermined position of a support leg 43 of the guide rail 2 is pivoted to the bracket 37. has been done. Note that the center line of the shaft 36 to which the support arm 34 is pivoted is provided at a position that aligns with the center line of the connecting shaft 22 when the elevating frame 16 stops above the guide rail 2. The tilt support arm 34 connected to the cylinder 38 is held horizontally when the actuating cylinder 38 is shortened, and is configured to rotate forward about the shaft 36 in an inverted shape at an angle of approximately 90 degrees when the actuating cylinder 38 is extended. ing. Note that the left and right tilting operation cylinders 38 are linked to operate in synchronization. Further, a long hole-shaped receiving recess 40 is formed on the free end side of the tilting support arm 34 to engage and support the tilting trunnion 28 protruding from the left and right sides of the tilting frame 24 of the lifting frame 16. The recess 40 is opened rearward, and when the operating cylinder 38 is shortened and the support arm 34 is supported horizontally, the center line b of the receiving recess 40 is aligned with the movement trajectory line a (angle α) of the center of the trunnion 28. It is formed to do so.

In the figure, numeral 41 is a large bucket for transferring and loading objects to be transported, and 42 is a large truck on which the large bucket 41 is placed.

Next, the operation and effects of this embodiment configured as described above will be explained.

The skip hoist device 1 of this example is provided with a lifting frame 16 that can be moved up and down along guide rails 2 arranged at a predetermined angle of inclination α. Main body 1
7 and this elevating main body 17, there is a connecting shaft 2 at the front part.
A substantially U-shaped tilting frame 24 that is pivotally mounted via the frame 2 and opens rearward to allow the transport bucket 6 to be transferred.
In addition to horizontally supporting the tilting frame 24, tilting trunnions 28 are provided to protrude laterally on both rear sides of the tilting frame 24, while tilting support arms 34 are pivotally attached to both sides of the upper side of the guide rail 2. , and the support arm 3
4 is provided with a tilting device 33 which is connected to a tilting operation cylinder 38 and can rotate the support arm 34 upside down forward, and a trunnion for tilting the lifting frame 16 is provided on the free end side of the tilting support arm 34. 28 is provided with a receiving recess 40 that engages and supports. Therefore, when transferring and supplying a predetermined amount of objects to the large bucket 41, the objects are divided into a plurality of transport buckets 6, loaded, placed on the conveyor 4 formed on the cart 3, and transported. Carry it to a predetermined stopping position on road 5. When the cart 3 is carried in, the hoisting device 10 of the skip hoist device 1 is driven to lower the elevating frame 16 and wait at the lowest position of the guide rail 2. In this case, the lifting frame 16
The tilting frame 24 is held at a position where the transport bucket 6 on the truck 3 can be transferred via the transfer conveyor 32. Thus, the transport bucket 6 is transferred by the conveyor 4 of the truck 3 and the transfer conveyor 32 and placed on the tilting frame 24. When the actuating cylinder 30 is actuated, the tightening pin 2 is moved through the link 31.
9 is projected, and the pin 29 is fitted into the left and right long holes 9 for tightening pins formed in the transport bucket 6, and the transport bucket 6 is tightened on the tilting frame 24. After that, when the hoisting device 10 is started, the elevating frame 16 is raised along the guide rail 2, and the elevating frame 16 is raised along the guide rail 2.
When it reaches a predetermined position on the upper end side, that is, the position where the tilting device 33 is provided, it is detected by the detection means, the hoisting device 10 is stopped, and the lifting frame 16 is also stopped.
At this stop position, the connecting shaft 22 of the lifting frame 16
A shaft 3 with a tilting support arm 34 pivotally connected to the center line of
The tilt support arm 34 is horizontally supported, and the center line b of the receiving recess 40 provided on the free end side is aligned with the movement trajectory line a of the center of the trunnion 28. (Angle α), and the trunnion 2 is placed in the receiving recess.
8 is engaged and inserted and stopped. As the lifting frame 16 stops, the left and right tilting actuating cylinders 38 of the tilting device 33 are synchronously operated and extended, and the tilting support arm 34 gradually becomes inverted in the direction of the solid arrow around the shaft 36. As the transport bucket 6 is rotated, the tilting frame 24 that tightens the transport bucket 6 is tilted together with the support arm 34 via the trunnion around the connecting shaft 22, and as a result of this tilting, the transported objects in the bucket 6 are When the object is loaded into the large bucket 41 and the engagement support part 27 comes into contact with the column 19, the bucket 6 becomes inverted and the loading of the conveyed object is completed.At the same time, the tilting actuating cylinder 38 is operated to shorten the support arm 34. When stopped horizontally, the engagement support portion 27 of the tilting frame 24 also comes into contact with the horizontal receiving portion 21 of the elevating main body 17, the transport bucket 6 is supported horizontally, and the tilting device 33 is stopped. This tilting device 3
3 stops, the hoisting device 10 is driven again and the lifting frame 16 is lowered, and when it reaches a predetermined stopping position at the bottom of the guide rail 2, the hoisting device 10 is stopped. The actuation cylinder 30 is actuated, the tightening pin 29 is retracted, and the engagement with the elongated hole 9 of the transport bucket 6 is released. After that, the transfer conveyor 32 and the conveyor 4 of the truck 3 are driven, and the transport bucket 6 is transferred to the truck 3 again.
placed on top. Then, the cart 3 is moved and the second transport bucket 6 is stopped at a predetermined position, and the above operation is repeated to sequentially feed the objects into the large bucket 41.

As described above, according to the skip hoist device 1 of this embodiment, the lifting frame 16 has a pair of left and right lifting bodies 17 connected to the hoisting chain 15, and a connecting shaft 22 in the front portion between the lifting bodies 17. It horizontally supports a substantially U-shaped tilting frame 24 which opens rearward and allows transfer of the transport bucket 6, and has a horizontally extending wall on both rear sides of the tilting frame 24. A tilting trunnion 28 is provided protrudingly, and tilting support arms 3 are provided on both sides of the upper side of the guide rail 2.
4 is pivotally mounted, and a tilting device 33 is provided, which is capable of rotating the support arm 34 forward in an upside-down manner by linking a tilting operation cylinder 38 to the support arm 34.
A lifting frame 16 is provided on the free end side of the tilting support arm 34.
Since the receiving recess 40 that engages and supports the tilting trunnion 28 is provided, the elevating frame 16 of the transport bucket 6 is
Loading and unloading can be carried out extremely easily and reliably, and the tilting frame 2 of the lifting frame 16 can be
4 can be reliably connected to the tilting device 33 for safe tilting operation. In addition, it is possible to prepare the transport bucket 6 by loading the transported objects in advance at another location, and the transport bucket 6 can be prepared at another location. 6 is arbitrary, especially when there are different types and loading weights of the items to be transported, and there are combinations in the loading order.
By loading the plurality of transport buckets 6 in advance and placing them on the trolley 3 in the order of loading, loading work can be carried out extremely smoothly. Further, since the transport bucket cart 6 is configured to be attached and detached, there are many advantages such as the ability to form the entire structure of the skip hoist device 1 simply.

Effects of the invention Now, the present invention provides an elevating frame that can be moved up and down along guide rails arranged at a predetermined inclination angle, and the elevating frame has a pair of left and right elevating bodies connected to a hoisting chain, and this elevating main body. A substantially U-shaped tilting frame, which is pivotally attached to the front part of the frame via a connecting shaft and opens rearward to allow transfer of the transport bucket, is horizontally supported between the two. A tilting trunnion is provided to protrude laterally on both sides of the rear part of the guide rail, while a tilting support arm is pivotally attached to both sides of the upper side of the guide rail, and a tilting operation cylinder is connected to the support arm. By providing a tilting device that can rotate the support arm forward in an inverted position, and furthermore, by providing a receiving recess on the free end side of the tilting support arm for engaging and supporting the tilting trunnion of the lifting frame,
Loading and unloading to and from the lifting frame of the transport bucket can be carried out extremely easily and reliably, and
The tilting frame of the lifting frame can be reliably connected to the tilting device for safe tilting operation, and the objects to be transported can be loaded and prepared in advance on the transport bucket at another location. Loading items onto bucket carts is arbitrary, especially when the items to be transported have different types and loading weights, and there are combinations in the loading order. By placing it on the table, the loading operation can be carried out extremely smoothly. Further, since the transport bucket cart is configured to be attached and detached, the structure of the entire skip hoist device can be formed extremely simply, and therefore, it is an extremely practical idea as a skip hoist device.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a schematic front view of a skip hoist device, Fig. 2 is a front view of a transport bucket, Fig. 3 is a plan view, and Fig. 4 is a side view. Figure 5 is an enlarged perspective view of the lifting frame.
Fig. 6 is a partial sectional view showing the operating part of the tightening pin, Fig. 7 is an enlarged front view showing the relationship between the elevating frame and the truck on the lower side of the guide rail, and Fig. 8 is the elevating and lowering on the upper side of the guide rail. FIG. 3 is an enlarged front view showing the relationship between the frame and the tilting device. 1... Skip hoist device, 2... Guide rail, 3... Dolly, 6... Transport bucket, 10...
...Hoisting device, 15...Hoisting chain, 16...
Lifting frame, 17... Lifting body, 22... Connection shaft, 2
4...Tilt frame, 28...Tilt trunnion, 33
...Tilt device, 34...Tilt support arm, 38
...Operating cylinder for tilting, 40...Receiving recess.

Claims (1)

[Scope of utility model registration request] An elevating frame is provided that can be moved up and down along guide rails arranged at a predetermined inclination angle, and the elevating frame is connected to a pair of left and right elevating bodies connected to a hoisting chain and connected to the front part between the elevating bodies. It horizontally supports a generally U-shaped tilting frame which is pivotally attached via a shaft and opens rearward to allow transfer of the transport bucket, and has sideways on both rear sides of the tilting frame. While a tilting trunnion is provided protrudingly, a tilting support arm is pivotally attached to both sides of the upper side of the guide rail, and a tilting operation cylinder is connected to the support arm to rotate the support arm upside down forward. 1. A skip hoist device comprising a tilting device capable of tilting, and further comprising a receiving recess provided on the free end side of the tilting support arm for engaging and supporting the tilting trunnion of the lifting frame.