JPS641366B2 - - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a conveyor device, and in particular, to a conveyor device, and in particular, to a conveyor device, the present invention relates to a conveyor device, and more particularly, to It relates to a free flow type that can be stopped freely without causing damage.

(Prior art) The items being conveyed can be transported independently of the drive of the conveyor device and without damaging the lower part of the items.
As shown in Japanese Utility Model Application Publication No. 57-7707, a free-flow type conveyor device that can be stopped freely has wheels for supporting articles mounted on an endless drive chain. However, since this conventional conveyor device uses a chain drive system, there is a problem that noise is generated from the chain, and a take-up mechanism to keep the chain tension is also required, making the structure complicated. was.

Regarding this type of chain drive system,
A conveyor device using a shaft drive system using a drive shaft such as that shown in Publication No. 58-131208 or Japanese Utility Model Application Publication No. 58-173613 does not have the drawbacks of a chain drive system, but it There was no free flow type that could be stopped freely without damaging the lower part of the machine.

(Problems to be Solved by the Invention) As mentioned above, conventional free-flow type conveyors have problems such as noise due to the chain drive system. There was no problem, but there was no free flow type.

The present invention has been made in view of these points, and is a shaft-driven conveyor device that does not have problems such as noise, and is capable of freely stopping articles being transported without damaging the lower part of the articles. The aim is to realize a free flow that allows for

[Structure of the invention]

(Means for solving the problem) The conveyor device of the first invention includes a frame 1,
A plurality of conveying rotary bodies 5 are arranged in parallel on this frame 1 and have an outer ring 9 rotatably fitted to the outer periphery of an inner ring 8 having bevel gear parts 21 and 45 protruding from the ends thereof, and each of the conveying rotary bodies 5. Bevel gear parts 21, 4 of inner ring 8
A drive shaft 2 provided on the frame 1 along the
2, a plurality of bevel gear portions 2 of the inner ring 8 are provided on the drive shaft 22 corresponding to each of the conveying rotating bodies 5.
1 and 45 to transmit the rotation of the drive shaft 22 to the inner ring 8.

The conveyor device of the second invention is the conveyor device of the first invention, in which the conveying rotating body 5
A collar 13 is interposed between an inner ring 8 and an outer ring 9.

(Function) The conveyor device of the present invention transmits the rotation of the drive shaft 22 from the bevel gear 26 to the bevel gear parts 21 and 45 of the inner ring 8 of the conveying rotary body 5.
In this case, when the article is conveyed while being supported on the outer ring 9 of the conveying rotary body 5 and the article being conveyed is forcibly stopped, the transmission from the inner ring 8 to the outer ring 9 is carried out. A slip is caused between the inner ring 8 and the outer ring 9, and the outer ring 9 is stopped together with the article.

(Example) An example of the conveyor device of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a frame, and this frame 1 has an outer wall 2 and an inner wall 3 that are erected in parallel on both sides of the upper part, and support pieces are provided inside the outer wall 2 on both sides. 4 are provided at a predetermined interval, and a conveyance wheel 5 as a conveyance rotating body is rotatably supported between each of the support pieces 4 on both sides and the inner wall portions 3 on both sides.

As shown in FIG. 2, each of the conveying wheels 5 is composed of an inner ring 8 and an outer ring 9 made of synthetic resin, and the inner ring 8 is supported by a small diameter portion 11 in the middle of a support shaft 10 via a bearing 12. At the same time, the outer ring 9 is rotatably fitted to the outer periphery of the inner ring 8 via a metal collar 13 to avoid friction between the same materials, and each of the above-mentioned support shafts 10 has a large diameter at its outer end. The portion 14 is attached to the support piece 4 with a screw 15, and the male threaded portion 16 at the inner end thereof is attached to the inner wall portion 3 with a nut 17. Note that 18 is a cover that holds the outer ring 9 and collar 13 on the outer periphery of the inner ring 8, and 19 is a collar.

Further, a bevel gear portion 21 is provided at the outer end of the inner ring 8 of each conveyance wheel 5 on both sides of the support shaft 1.
The supporting pieces 4 on both sides of the frame 1 and the outer walls on both sides are integrally protruded so as to surround the large diameter portion 14 of the frame 1, and are provided along the bevel gear portions 21 of the inner rings 8 of the respective conveyance wheels 5 on both sides. A drive shaft 22 is rotatably supported between the outer wall portion 2 and the outer wall portion 2 via a plurality of bearings 23 attached to the outer wall portion 2 .

As shown in FIG. 3, a plurality of bevel gears 26 made of synthetic resin are attached to the drive shafts 22 on both sides with screws 27 in correspondence with the respective conveyance wheels 5 on both sides. It is meshed with the bevel gear portion 21 of the inner ring 8 of the wheel 5.

Further, a transmission shaft 32 rotated by a motor 31 is mounted on a bearing 33 between the inner wall portions 3 on both sides of the frame 1.
A bevel gear 34 is attached to each end of the transmission shaft 32, and a bevel gear 35 that meshes with each bevel gear 34 is attached to each drive shaft 22.

Next, the operation will be explained.

When the motor 31 is driven to rotate the transmission shaft 32, the bevel gears 26 on both sides rotate in the opposite direction via the bevel gears 34, 35 and the drive shafts 22, and the inner rings of the bevel gears 26 and the conveyor wheels 5 rotate. By meshing with the bevel gear portion 21 of 8, the inner ring 8 and outer ring 9 of each conveyance wheel 5 on both sides rotate in the same direction.

Therefore, when an article is placed on each conveyor wheel 5 on both sides, the article can be conveyed.

When the item being transported is stopped by a stopper or the like, slipping occurs between the outer ring 9 and the collar 13 and between the collar 13 and the inner ring 8 of the transport wheel 5 on which the item is placed, causing the item to be placed on it. The outer ring 9 of the conveyor wheel 5 in this state stops, and thereby the article being conveyed can be freely stopped without the outer ring 9 of the conveyor wheel 5 rubbing the lower surface of the article.

In addition, the conveying force of the article depends on the frictional force between the outer ring 9, collar 13, and inner ring 8 of the conveying wheel 5, so as the load due to the article increases, the frictional force between the outer ring 9, collar 13, and inner ring 8 also increases, and the conveying force increases. Because it is reinforced, it is possible to transport items stably regardless of their weight.

With this conveyor device, if the conveyance speed of the item is partially changed depending on the usage conditions,
This can be handled by changing the outer diameter, that is, the number of teeth, of the bevel gear portion 21 of the inner ring 8 of the conveyance wheel 5 in that portion. That is, if the outer diameter of the bevel gear section 21 is increased and the number of teeth is increased, the rotational speed of the conveyance wheel 5, that is, the conveyance speed is decreased, and conversely, when the outer diameter of the bevel gear section 21 is decreased and the number of teeth is decreased, The rotational speed of the conveyance wheel 5, that is, the conveyance speed increases.

In addition, as shown in FIG. 3, the bevel gear part 21
If the inner ring 8 is integrally protruded from the inner ring 8, it is necessary to replace the inner ring 8 in order to change the outer diameter of the bevel gear part 21. It is necessary to prepare it and it is not reasonable. As a countermeasure against this, as shown in FIG. 4, the inner ring 8 of the conveyor wheel 5 is composed of a bevel gear part 45 made of synthetic resin and a roller part 46 made of metal.
If the outer ring 9 is formed integrally with a cover 47 that holds the outer periphery of the roller portion 46 of the inner ring 8, only the bevel gear portion 45 needs to be replaced. In this case, since the roller portion 46 is made of metal, the metal collar 13 as shown in FIG. 3 can be omitted. Further, in this case, the cover 47 is divided into two parts as shown in FIG.

FIG. 6 shows an example in which the conveyor wheels 5 on both sides are driven by the drive shaft 22 on one side, and one in which the inner ring 8 is provided with a bevel gear part 21 and driven by the bevel gear 26 of the drive shaft 22. The conveyor wheel 5 on the side and the conveyor wheel 5 on the other side without the bevel gear part 21 of the inner ring 8 are connected by an interlocking cylinder 51, and both ends of the interlocking cylinder 51 are connected between the inner ring 8 and the bearing 12, respectively. is mated to.

Note that the conveyor device of the present invention is not limited to a wheel conveyor using the conveyance wheel 5 as a conveyance rotation body, but can also be applied to a roller conveyor using a conveyance roller as a conveyance rotation body. In this case, the conveyance roller is used as an outer ring. An inner ring 8 having bevel gear portions 21 is provided at both ends of the conveyance roller, and the bevel gear portions 21 at both ends can be driven by a bevel gear 26 of a drive shaft 22.

〔Effect of the invention〕

As described above, according to the present invention, the conveying rotary body has a double structure consisting of an inner ring and an outer ring, a bevel gear portion is provided protruding from the end of the inner ring, and the rotation of the drive shaft is transferred from the bevel gear to the conveying rotary body. The signal is transmitted to the bevel gear part of the inner ring, and in this conveying rotating body, it is transmitted from the inner ring to the outer ring, and when the item is supported and conveyed on the outer ring of this conveying rotating body, and the item being conveyed is forcibly stopped. This creates a slip between the inner ring and the outer ring of the conveying rotary body and stops the outer ring together with the article, so the article being conveyed can be freely stopped without damaging the lower part of the article, and The conveying force of the item is due to the frictional force between the outer ring and the inner ring of the conveying rotor, so as the load from the item increases, the frictional force between the outer ring and the inner ring also increases and the conveying force is strengthened, so it is stable regardless of the weight of the item. In addition, since it is a shaft drive method using a drive shaft, there are problems with noise generated from the chain like in a chain drive method, and there is a structure with a take-up mechanism to keep the chain under tension. There is no problem of complication.

In addition, when selecting materials for the inner and outer rings of the conveyor wheel, if friction occurs between the same materials between the inner and outer rings and there are problems with friction and stability of movement, it is recommended to This problem can be solved by intervening.

[Brief explanation of drawings]

The figures show an embodiment of the conveyor device of the present invention, in which Fig. 1 is a partially cutaway plan view, Fig. 2 is a vertical cross-sectional view of the main part, and Fig. 3 is a cross-sectional view of the main part.
Figure 4 is a cross-sectional view of the main part showing a modified example;
This figure is a structural diagram of the cover shown in FIG. 4, and FIG. 6 is a longitudinal sectional view of the main part showing another modification. DESCRIPTION OF SYMBOLS 1... Frame, 5... Conveyance wheel as a conveyance rotating body, 8... Inner ring, 9... Outer ring, 13...
Collar, 21, 45... Bevel gear part, 22...
Drive shaft, 26...bevel gear.

Claims (1)

[Scope of Claims] 1. A frame, a plurality of conveying rotating bodies arranged in parallel on the frame with an outer ring rotatably fitted on the outer periphery of an inner ring having a bevel gear portion protruding from the end thereof, and each of the conveying rotating bodies. A drive shaft is provided on the frame along the bevel gear part of the inner ring of the body, and a plurality of drive shafts are provided on this drive shaft corresponding to each of the conveying rotary bodies and mesh with the bevel gear part of the inner ring to control the rotation of the drive shaft. A conveyor device characterized by comprising a bevel gear that transmits information to the conveyor. 2. A frame, a plurality of conveying rotating bodies arranged in parallel on the frame with shafts and having an outer ring rotatably fitted to the outer periphery of the inner ring having a bevel gear portion protruding from the end thereof with a collar interposed therebetween, and each of the conveying rotating bodies. a drive shaft provided on the frame along the bevel gear portion of the inner ring;
A conveyor device characterized in that the drive shaft is provided with a plurality of bevel gears provided corresponding to each of the conveying rotors and meshing with a bevel gear portion of the inner ring to transmit rotation of the drive shaft to the inner ring.