JP4247828B2 - Conveyor equipment - Google Patents

Description

  The present invention relates to a conveyor apparatus in which an endless belt is wound between a drive shaft and a carrier roller.

  A plurality of carrier rollers having belt hooking grooves are arranged in a direction intersecting with the drive shaft and rotatably supported on each belt hook portion of the drive shaft having a plurality of belt hook portions. 2. Description of the Related Art A conveyor device is known in which a rotation transmission belt having both ends connected endlessly is wound around a belt groove groove of a carrier roller (see, for example, Patent Document 1).

  Such a rotation transmission belt having both ends connected endlessly has an advantage that it can be easily replaced. However, in terms of durability and rotation transmission performance, an endless belt having no connection portion is desirable.

  On the other hand, in a conveyor device in which an endless belt without a connection portion is wound around the belt hooking portion of the drive shaft and the belt hooking groove of the carrier roller, it is not easy to replace the endless belt. So that it can be easily wound around a carrier roller that can be easily removed.

  In this case, since it is necessary to hold the spare endless belt around the drive shaft, conventionally, as shown in FIG. 5, the pipe holding clip 3 is pushed into the hole 2 of the conveyor frame 1 and attached. The spare endless belts 5 are respectively fitted and fixed in the left and right recesses 4 of the pipe holding clip 3.

In the case of curved conveyors, the distance from the conveyor frame is different, so it can be handled with brackets of different lengths, or bolts are taken out from the base of the pillow that supports the drive shaft, and a spare endless belt is fixed to this bolt. And a spare endless belt is fixed to the base of the pillow.
JP-A-8-143117 (3rd page, FIG. 3-5)

  When the spare endless belt 5 is fixedly held by the conventional pipe holding clip 3, since the endless belt 5 is sandwiched only at one place, the endless belt 5 may fall to the left and right and interfere with the operating endless belt. In order to prevent this, the two endless belts 5 are fixed using fixing auxiliary means such as an insulation lock. However, this increases the cost and is applied to a standard conveyor device. There is a problem that cannot be done.

  In the case of a curve conveyor, there is a problem that a variety of endless belt fixing means must be used, and the design of the auxiliary endless belt fixing means must be changed each time.

  The present invention has been made in view of the above points, and provides a conveyor apparatus including a highly versatile means capable of holding a spare endless belt around a drive shaft without interfering with an operating endless belt. It is intended.

  According to the first aspect of the present invention, a drive shaft provided with a plurality of belt hanging portions along the axial direction, and a shaft that is arranged on the belt hanging portion of the drive shaft in a direction intersecting the drive shaft and is rotatably supported. A plurality of carrier rollers having a belt hanging groove, an endless belt for rotation transmission wound around the belt hanging portion of the driving shaft and the belt hanging groove of the carrier roller, and the driving shaft between the belt hanging portions of the driving shaft. And a spare endless belt mounted around the drive shaft via the spare belt mounted body, and is connected to the drive shaft between the belt hanging portions of the drive shaft. The spare endless belt mounted around the drive shaft by the attached spare belt mounting body is held in a fixed posture without falling down, so that it does not interfere with the running endless belt, and the spare endless belt is Fixing auxiliary means for preventing the fall of the spare endless belt required when fixing to a belt or the like is also unnecessary, there is no cost increase, and a spare belt mounting body is attached to the drive shaft. Unlike the case where the spare endless belt is fixed to the conveyor frame or the like, it is not necessary to change the design of the fixing means in accordance with the conveyor structure, and it can be applied to various conveyor devices and is highly versatile.

  The invention according to claim 2 is that the spare belt mounting body in the conveyor device according to claim 1 is attached at right angles to the drive shaft, and even when the spare belt mounting body rotates together with the drive shaft, There is no axial blurring associated with the rotation of the spare round belt, and the interference between the belts is reliably prevented.

  According to a third aspect of the present invention, there is provided an elastic boss in which the spare belt mounting body in the conveyor device according to the first or second aspect is fitted to the drive shaft through an opening formed in a notch smaller than the outer diameter of the drive shaft. A spare belt wrapping portion having a belt holding portion around which a spare endless belt is wound and provided at a tip portion of the arm portion. The elastic boss part of the belt mounting body has an opening smaller than the outer diameter of the drive shaft, so that it fits into the drive shaft through this opening with a single touch, and is further provided at the tip of the arm part. Further, by wrapping the spare endless belt around the belt holding portion of the spare belt winding portion, the spare endless belt can be easily attached to and detached from the spare belt mounting body.

  According to the first aspect of the present invention, the spare endless belt mounted around the drive shaft can be held in a certain posture without falling down by the spare belt mounting body mounted on the drive shaft between the belt hanging portions of the drive shaft. This prevents interference between the spare endless belt and the running endless belt, and when the spare endless belt is fixed to a conveyor frame or the like with a pipe holding clip, the spare endless belt There is no need for the auxiliary fixing means required to prevent falling, which can prevent the cost from increasing. In addition, a spare belt mounting body is attached to the drive shaft, so that a spare endless belt can be fixedly held on a conveyor frame, etc. Thus, the troublesomeness of changing the design of the fixing means according to the conveyor structure can be prevented, and it can be applied to various conveyor devices, and high versatility is obtained.

  According to the second aspect of the present invention, even when the spare belt mounting body rotates together with the drive shaft, it is possible to prevent the occurrence of axial blur due to the rotation of the spare round belt, and to prevent interference between the belts. Can be ensured.

  According to the invention of claim 3, the boss portion having elasticity of the spare belt mounting body can be easily fitted so as to be fitted into the drive shaft with one touch through an opening smaller than the outer diameter of the drive shaft, The spare endless belt can be easily attached to and detached from the spare belt mounting body by winding the spare endless belt around the belt holding portion of the spare belt winding portion provided at the tip of the arm portion.

  Hereinafter, the present invention will be described in detail with reference to one embodiment shown in FIGS. 1 to 3 and another embodiment shown in FIG.

  FIG. 1 shows a conveyor device called a so-called line drive roller conveyor, in which base portions 13a of pillows 13 are respectively fixed to a plurality of connecting rods 12 provided at a predetermined pitch for connecting conveyor frames 11 on both sides. The drive shaft 14 is rotatably held by the pillow 13. The drive shaft 14 has a sheave 16 as a plurality of belt-hanging portions along the axial direction of the shaft main body portion 15, and a collar 17 for securing a desired distance between the sheaves 16 alternately. It is an integrated one.

  A plurality of carrier rollers 21 arranged in a direction intersecting with the drive shaft 14 on each sheave 16 of the drive shaft 14 are respectively inserted through shaft portions 23 detachably fitted in the cutout grooves 22 of the conveyor frame 11. The conveyor frame 11 is rotatably supported. Each of the carrier rollers 21 has a belt hooking groove 24 on each sheave 16, and a round belt as an endless belt for transmitting rotation to each sheave 16 of the drive shaft 14 and the belt hooking groove 24 of each carrier roller 21. 25 is twisted by 90 ° and wound.

  A spare belt mounting body 26 is attached at a right angle to the driving shaft 14 by a collar 17 positioned between predetermined sheaves 16, 16 of the driving shaft 14, and a spare belt is mounted around the driving shaft via the spare belt mounting body 26. A round belt 27 as an endless belt is attached.

  As shown in FIG. 2 and FIG. 3, the spare belt mounting body 26 includes an elastic boss portion 31 fitted to the collar 17 of the drive shaft 14 and three boss portions 31 protruding in the radial direction from the boss portion 31. This is a resin molded product including an arm portion 32 and a spare belt winding portion 33 provided at the tip portion of the arm portion 32.

  The boss 31 is a thin and wide elastic annular body having an inner diameter that is substantially the same as the outer diameter of the collar 17 of the drive shaft 14, and has an opening 34 that is notched and formed smaller than the outer diameter of the collar 17 of the drive shaft 14. And is fitted into the collar 17 through the opening 34.

  Each arm portion 32 has a rib 36 integrally formed around the thin plate portion 35 to ensure strength. Each spare belt wrapping portion 33 is integrally formed at the tip of each arm portion 32 with the same width as the boss portion 31, and has three belt holding portions for winding three spare round belts 27 on the outer peripheral surface side. As a groove 37.

  Next, the function and effect of this embodiment will be described.

  The thin and wide boss 31 having elasticity of the spare belt mounting body 26 has an opening 34 smaller than the outer diameter of the collar 17 of the drive shaft 14, so that it is pressed against the collar 17 from the opening 34 and fits in one touch. Fit into. At this time, the boss 31 is contracted by its own elasticity after the opening 34 has once expanded to the outer diameter of the collar 17, and is in close contact with the peripheral surface of the collar 17.

  Further, the three spare round belts 27 are formed by winding the spare round belts 27 in the three grooves 37 of the spare belt winding portions 33 provided at the distal ends of the plurality of arm portions 32, respectively. Since it does not deform in the left-right direction of (b), it does not interfere with the operating round belt 25 and does not loosen due to the elasticity of the belt itself, so that it does not come off from the groove 37.

  When replacing this spare round belt 27 with a used round belt, the lower part of the spare round belt 27 removed from the spare belt mounting body 26 is hung on the sheave 16 of the drive shaft 14 as it is, and the upper part of this round belt 27 is Is hung on the belt groove 24 of the carrier roller 21 removed from the conveyor frame 11, and the carrier roller 21 is returned to its original position.

  In this way, the spare round belt 27 mounted around the drive shaft by the spare belt mounting body 26 attached to the drive shaft 14 between the sheaves 16 and 16 of the drive shaft 14 is changed to the left and right in FIG. It can be held in a fixed posture without falling in the direction, which can prevent interference between the spare round belt 27 and the running round belt 25, and the spare round belt 27 can be secured with a conventional pipe holding clip, etc. When fixing to the conveyor frame 11 or the like, the auxiliary fixing means necessary for preventing the fall of the spare round belt 27 is also unnecessary here, so that the cost can be prevented from increasing. Since the mounting body 26 is attached, it is possible to prevent the trouble of changing the design of the fixing means according to the conveyor structure as in the case of fixing the spare round belt 27 to the conveyor frame 11 and the like. Can be applied to Beya device, high versatility is obtained.

  Further, since the spare belt mounting body 26 is mounted at a right angle to the drive shaft 14, even when the spare belt mounting body 26 rotates together with the drive shaft 14, the axial direction accompanying the rotation of the spare round belt 27 The occurrence of blurring can be prevented, and interference between the belts 25 and 27 can be reliably prevented.

  Further, the boss 31 having elasticity of the spare belt mounting body 26 can be easily fitted to the collar 17 with one touch through the opening 34 smaller than the outer diameter of the collar 17 of the drive shaft 14, and the arm can be easily fitted. The spare endless belt 27 can be easily attached to and detached from the spare belt mounting body 26 by winding the spare round belt 27 around the groove 37 of the spare belt winding portion 33 provided at the tip of the portion 32.

  The spare belt mounting body 26 has three grooves 37 of the spare belt winding part 33. However, depending on the case, four or more grooves may be formed, and the number of grooves may be increased. The function of preventing the deformation of each round belt 27 can be maintained.

  Next, FIG. 4 shows another embodiment in which the present invention is applied to a curved conveyor.

  The conveyor apparatus shown in FIG. 4 is driven on a drive shaft 14 having a plurality of sheaves 16 as belt hanging portions and on the sheave 16 of the drive shaft 14 in the same manner as the conveyor apparatus shown in FIG. A plurality of tapered carrier rollers 21 having a belt hooking groove 24 arranged in a direction intersecting with the shaft 14 and rotatably supported, and a sheave 16 of the drive shaft 14 and a belt hooking groove 24 of the carrier roller 21 A round belt 25 as an endless belt for rotation transmission wound around, a spare belt mounting body 26 attached to the drive shaft 14 between the sheaves 16, 16 of the drive shaft 14, and through this spare belt mounting body 26 And a spare endless belt 27 mounted around the drive shaft.

  Since the configuration and operational effects of the spare belt mounting body 26 used in this curve conveyor are the same as those shown in FIGS. 2 and 3, the description thereof will be omitted.

(A) is sectional drawing which shows one Embodiment of the conveyor apparatus based on this invention, (b) is the side view. It is a front view of the reserve belt mounting body used for the conveyor apparatus same as the above. It is the III-III sectional view taken on the line of FIG. (A) is a top view which shows other embodiment of the conveyor apparatus based on this invention, (b) is the sectional drawing. It is a perspective view at the time of fixing a spare endless belt with the conventional clip for clip holding.

Explanation of symbols

14 Drive shaft
16 Sheave as belt hook
21 Carrier roller
24 Belt groove
25 Round belt as endless belt for rotation transmission
26 Spare belt wearing body
27 Round belt as spare endless belt
31 Boss
32 arms
33 Spare belt winding part
34 opening
37 Groove as belt holder

Claims (3)

A drive shaft provided with a plurality of belt hanging portions along the axial direction;
A plurality of carrier rollers having belt-hanging grooves which are arranged in a direction intersecting with the drive shaft on the belt-hanging portion of the drive shaft and rotatably supported by the shaft;
An endless belt for rotation transmission wound around the belt hooking portion of the drive shaft and the belt hooking groove of the carrier roller;
A spare belt mounting body attached to the drive shaft between the belt hanging portions of the drive shaft;
And a spare endless belt mounted around the drive shaft via the spare belt mounting body. The conveyor apparatus according to claim 1, wherein the spare belt mounting body is attached at a right angle to the drive shaft. Spare belt wearing body,
A boss portion having elasticity to be fitted to the drive shaft through an opening formed in a notch smaller than the outer diameter of the drive shaft;
An arm that protrudes radially from the boss,
The conveyor apparatus according to claim 1, further comprising: a spare belt winding portion provided at a tip portion of the arm portion and having a belt holding portion around which a spare endless belt is wound.

Images