JPS6330734Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention is used for transporting gravel, sand, sludge, ready-mixed concrete, etc. in civil engineering work, etc., and for general cargo handling work, for transporting unstable flow of powder, granular materials, etc. Concerning a rubber bucket type lift conveyor for transporting animals.

Conventional technology Conventionally, as a lift conveyor for increasing the vertical conveyance distance, a chain is run on a tower frame and this is separately installed, as described in Japanese Utility Model Application Publication No. 1708/1983, which was invented by the inventor of the present invention. Wrap a rubber belt bent around the formed bone members, etc.
There is a mechanism (rubber belt type) in which conveyed items are sequentially stacked on a horizontal plane formed by the bending, raised, and transferred to another when turning during descent.

Alternatively, as in the idea described in Japanese Utility Model Application Publication No. 59-15616, a chain wheel is pivotally supported at key points of the tower frame and an endless chain is wrapped around it.
A large number of bucket carts are connected to the chain, and guide rollers protruding from the bucket carts are driven up and down while being guided by guide rails attached to a frame, and in the process, the bucket carts are rotated in an upright position to load objects to be transported. There was something that allowed the transfer to take place (bucket method).

Problems to be solved by the invention Among the above conventional technologies, in the case of the rubber belt type, a metal support (frame) that supports the belt is used.
The belts are located at the front, rear, left, right, top and bottom of the front and rear ends of each belt, resulting in excessive weight, and the frame itself severely limits the loading capacity of cargo, making it difficult to load unstable objects such as fluids. There are disadvantages such as the possibility of cargo spillage.

On the other hand, in the bucket type, the bucket itself is made of rigid metal, resulting in excessive weight and extremely high manufacturing costs.

In addition, all of the above types of conveyors have problems such as the complicated cleaning mechanism for removing sludge, etc. attached to the bucket, and the need for various mechanical improvements to make this part work in correlation with the movement of the conveyor. It had a point.

Means for Solving the Problems In order to solve the above problems, the conveyor of the present invention has chain wheels 5 and 6 that are pivotally supported on the upper and lower ends of a tower frame 1 that stands up substantially vertically, and an endless chain 7 that is connected to the chain wheels 5 and 6. In this mechanism, a large number of buckets 10 are connected to the chain 7, and the buckets 10 are driven up and down by the chain 7 along ascending and descending guide rails 22, 23 attached to the tower frame 1. Guide rails 22 and 23 are provided in the straight ascending and descending portions of the loop formed by the chain 7, respectively, and the bucket 10
, a rubber belt 11 which forms a bucket main body and has a large number of trapezoidal protrusions 12 arranged side by side in the front and back direction on its left and right end surfaces, which serve as bucket side walls, and a belt shaft 15 that supports shaft supports 13, 13 at the front and rear ends of the rubber belt 11.
a, 15b and a belt shaft 15b at the rear end at its base end, and a guide whose tip contacts the guide rails 22, 23 to form the cargo receiving and extended posture and traveling trajectory of the bucket cart 10. Guide arm 1 that pivots the rolls 21, 21
9, 20, and an arm shaft 17 which integrally and coaxially connects both arms 19, 20 at their base ends, and when the bucket 10 is raised and in the cargo receiving position, the support arm 18 is connected to the chain. The guide arms 19 and 20 protrude toward the outside of the loop formed by the guide arms 19 and 20, and the guide arms 19 and 20 have a structure in which the guide arms 19 and 20 are inclined downwardly inwardly and outwardly to form an inverted V shape and protrude to the left and right positions that do not overlap with each other. guide arm 1
The guide roll 21 of 9 is guided in contact with the ascending guide rail 22 when ascending, and the outward guide arm 20 is guided in contact with the descending guide rail 23 when descending. The shafts 15a are each supported by the chain 7, and the rubber belt 11 curves to form a concave part for accommodating a conveyed object when the bucket is raised, and extends and runs when turning at the upper part.

<Structure of the invention> Embodiment Figure 1 is a side view of the main parts showing the mechanism and operating state of the conveyor of the invention.The tower frame 1, which is installed upright on the ground or at a certain inclination, is constructed by assembling section steel, etc. It consists of a columnar lower frame 2, an upper frame 3, and one or more intermediate frames 4 connecting the intermediate frames, and chain wheels 5, 6 are installed on the left and right sides at the upper or lower ends of each of the upper and lower frames 2, 3. It is pivoted.

An endless chain 7 is wound around each wheel 5, 6 in the vertical direction, and is provided so as to move up and down along the front and rear of the tower frame 1. The chain wheel 5 of the upper frame 3 is linked directly or indirectly to the prime mover 8 on the upper frame 3 as a drive wheel, and rotates the entire chain 7 so as to form an ascending line A at the front and a descending line B at the rear. , chain wheel 5,6
form upper and lower turns, respectively. Each chain 7 is housed in a chain guide 9 fixed inwardly at a key point of the frame 1 and having a straight or arcuately curved channel-shaped cross section to maintain the running locus of the chain.

A large number of bucket carts 10 are connected to the chain 7 at regular intervals, forming a bucket conveyor as a whole. The main body of the bucket bag 10 consists of a rectangular rubber belt 11 made of flexible rubber or resin, as shown in FIG. The protrusions 12 are juxtaposed in the front-rear direction and form a side wall of the bucket 10 to prevent cargo from spilling.

That is, each projection 12 has a trapezoidal shape and forms a V-shaped groove between adjacent projections.
When the rubber belt 11 is bent as shown in FIG. 2, both sides of the rubber belt 11 are brought into close contact with each other using the V-shaped groove portions as bending margins to curve the rubber belt 11 into an arc shape, and the protrusions 12 are used to bend the bucket. 10 side walls.

A cylindrical shaft support 13 is formed at the front and rear ends of the rubber belt 11, into which a rubber belt shaft (to be described later) is inserted, and a belt shaft 15 on the front end side is inserted therein.
A is pivotally supported at both ends by a bracket 14 forming a part of the link of the chain 7, and a belt shaft 15b at the rear end is supported by a bracket 16 which is also integral with the chain 7.
Both ends of the arm shaft 17 are pivotally supported by the tips of support arms 18 which protrude from the left and right ends of an arm shaft 17 which has both ends pivotally supported. Therefore, the rubber belt 11 is supported at its front and rear ends between the bracket 14 and the support arm 18 with a certain amount of slack.

In addition to the support arm 18, two types of guide arms 19 and 20 for raising and lowering the bucket 10 are protruded from the arm shaft 17 at different angles, and a guide roll is attached to the tip of the arm shaft 17. 21 are supported on each axis.

Corresponding to the guide arms 19, 20, guide rails 22, 23 for raising and lowering are attached to the tower frame 1 at key points as required. The ascending guide rail 22 curves from within the chain turning locus of the chain wheel 6 at the lower end and rises straight inside the chain 7 of the ascending line A, and forms a channel-shaped cross section within the ascending line A. The guide roll 21 of the lifting guide arm 19 is housed inside.

The guide rail 22 comes to the outer periphery of the upper chain wheel 5 and forms a rounded open end, which allows the bucket belt 10 to stand upright and the rubber belt 11 to curve from the lower turning section to the upper turning section. The guide roll 21 of the guide arm 19 is accommodated or circumscribed so as to maintain a fixed posture. When the bucket 10 reaches the upper turning part, it assumes a position in which it starts turning while stretching its rubber belt 11.

On the contrary, the descending guide rail 22 extends from the upper turning section to the lower turning section including a straight descending line B, and both ends thereof are curved in a radius toward the front. Then, the bucket 10 is raised by the guide rail 22 for raising and the guide arm 19, and from the state where the rubber belt 10 starts to extend at the upper turning part, the guide roll 21 of the guide arm 20 for lowering is moved for lowering. The rubber belt 11 is inscribed in the guide rail 23 (from this point on, the relationship between the guide rail 22 and the guide arm 19 is disengaged), and the rotation is completed, and the rubber belt 11 reaches the descending line B in a state in which it extends substantially in the vertical direction. begins to descend.

As mentioned above, the bucket 10 moves from the ascending line A to the descending line B while the rubber belt 11 is being stretched.
In the process of turning, the cargo loaded on the rubber belt 11 is thrown into a chute 25 that projects downward from the rear of the upper end of the upper frame 3 and is transferred to another place. A scraper 26 made of rubber or the like is attached to the lower part of the attachment opening of the chute 25 of the upper frame 3, and is pressed upward against the surface of the stretched rubber belt 11, and is used to remove residues adhering to the surface of the rubber belt after the load is transferred. , and has a mechanism for dropping it into the chute 25.

When the bucket 10 descends on the descending line B, it reaches the descending guide rail 2 at the lower turning part of the lower frame 2.
3, the link between the lifting guide arm 19 and the lifting guide rail 22 is established as described above, and the lifting guide arm 19 and the lifting guide rail 22 are sequentially brought into an upright state at the lower turning portion, and sent to the lifting line A.

At the bottom of the ascending line A, there is an upright bucket 1.
A belt conveyor 27 that throws dirt, sand, gravel, and other conveyed materials into the container, and a hopper 2 that receives them.
8th grade is provided.

Function In the rubber bucket conveyor configured as described above, the bucket 10 runs and drives the ascending line A and descending line B formed before and after the tower frame 1 by the running of the chain 7, and the tower frame 1
Due to the cooperation between the lifting guide rails 22 and 23 provided at the top and the guide arms 19 and 20 with rolls for guiding the bucket 10 up and down, the rubber belt 11 of the bucket 10 that is standing upright is curved in the ascending line A, and the surface becomes a concave part. form and allow cargo to be loaded there.

The bucket cart 10 loads each bucket cart in the middle of the ascending line A and transports it upward, and when turning at the top of the frame, transfers the cargo to another, and immediately after the transfer, improves the loading efficiency of the next cycle. Therefore, the rubber belt 11 is cleaned, and each bucket cart 10 is transferred to the lower turning section on the descending line B, where it is rotated and sent to the ascending line A while being ready for loading.

Effects of the invention As a result of the above-mentioned construction of the invention, the main body of the bucket is made of a flexible rubber (flat) belt, which is lightweight and reduces the weight burden on the chain, making cleaning during operation easy and reliable. Compared to metal products, it is also possible to reduce costs through mass production. In addition, although it is a flat belt, the trapezoidal side wall protrusion on the belt surface forms a container-shaped recess on the top surface when the belt is bent, so it is highly efficient in loading and can be used to collect particles, powder, sludge, and fresh concrete. It has many advantages such as being able to transport fluids such as

[Brief explanation of drawings]

Fig. 1 is a side view of the main part showing the mechanism and operating state of the conveyor of the present invention, Fig. 2 is an enlarged sectional view of the main part showing the raised state of the bucket cart, and Fig. 3 is a partially sectional plan view of the bucket cart. FIG. 4 is a perspective view of the rubber belt forming the bucket main body. 1... Tower frame, 2... Lower frame,
3... Upper frame, 4... Middle frame, 5,
6...Chain wheel, 7...Chain, 8...Motor, 9...Chain guide, 10...Bucket,
11... Rubber belt, 12... Protrusion, 13... Pivotal support, 14... Bracket, 15a, 15b...
Belt axis, 16... Bracket, 17... Arm axis, 18... Support arm, 19, 20... Guide arm, 21... Guide roll, 22, 23...
Guide rail, 25... chute, 26... scraper, 27... belt conveyor, 28... hopper.

Claims (1)

[Scope of utility model registration request] Chain wheels 5 and 6 are pivotally supported on the upper and lower ends of a tower frame 1 that stands up approximately vertically, an endless chain 7 is wound around these, a large number of buckets 10 are connected to the chain 7, and the buckets 10 are attached to the tower frame. 1, the guide rails 22 and 2
3 are respectively provided in the straight ascending and descending portions of the loop formed by the chain 7, and the bucket 10 is
, a rubber belt 11 which forms a bucket main body and has a large number of trapezoidal protrusions 12 arranged side by side in the front and back direction on its left and right end surfaces, which serve as bucket side walls, and a belt shaft 15 that supports shaft supports 13, 13 at the front and rear ends of the rubber belt 11.
a, 15b, a support arm 18 that supports the belt shaft 15b at the rear end at its base end, and a guide roll whose tip contacts the guide rails 22, 23 and forms the load receiving and extended posture and running trajectory of the bucket cart 10. A guide arm 19 that pivotally supports 21, 21,
20 and an arm shaft 17 which integrally and coaxially connects both arms 19 and 20 at their proximal ends, and when the bucket 10 is raised and the load receiving posture is carried out, the support arm 18 is formed by the chain 7. The guide arm 1 protrudes toward the outside of the loop to be formed.
Reference numerals 9 and 20 have a structure in which they are inclined downwardly inwardly and outwardly to form an inverted V shape and protrude in left and right positions that do not overlap with each other, and the guide roll 21 of the inwardly facing guide arm 19 serves as a guide rail for rising when rising. 2
2, the guide arm 20 is directed outwardly.
is a mechanism that is guided in contact with the descending guide rail 23 when descending, and the arm shaft 17 and the belt shaft 15a at the front end are respectively pivotally supported on the chain 7, and when the rubber belt 11 is raised by the bucket, it curves to accommodate the conveyed object. A rubber bucket lift conveyor with a mechanism that forms a recess and extends when turning at the top.