JPH0430172Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a conveyor shaft having a shaft body provided with a pair of sprockets for winding a conveyor chain.

[Conventional technology]

The above conveyor shafts are provided at both longitudinal ends of the conveyor frame, two sets of conveyor chains are wound around each sprocket of the two conveyor shafts, and a workpiece mounting table is installed across the two sets of conveyor chains. A chain conveyor is constructed.

Needless to say, the width of the chain conveyor is designed in accordance with the size of the work to be transported, and the length of the conveyor shaft and the spacing between the two sprockets are also set accordingly. be done.

Here, the dimension from the shaft end of the conveyor shaft to the pair of sprockets and the position of the shaft body supported by the bearing remain unchanged regardless of the size of the arrangement interval of the pair of sprockets, However, in the past, chain conveyors were manufactured by manufacturing conveyor shafts with different lengths only in the spacing of the sprockets, depending on the size of the work to be transported.

[Problem that the invention attempts to solve]

The production of this conveyor shaft is also time consuming and there is room for improvement in terms of shortening the construction period.On the other hand, it is not only wasteful to produce and stock up conveyor shafts of various dimensions without knowing how to use them. There is a drawback that a large amount of stock space is required for this purpose.

[Means for solving problems]

The present invention was devised in view of the above-mentioned circumstances, and is a conveyor shaft in which the shaft body is provided with a pair of two sprockets for winding the conveyor chain. The intermediate split shaft is divided into two parts, and both ends of the intermediate split shaft are formed into shaft parts with different diameters such as polygons, while a sprocket is integrally connected to each of the split shafts on the end side, and an intermediate split shaft is attached to each of the sprockets. It is characterized in that a connecting hole is formed for fitting and connecting the ends of the two, and an intermediate dividing shaft can be detachably connected between the pair of end-side dividing shafts.

[Effect]

According to the above-mentioned characteristic configuration, if a large number of the pair of end-side split shafts are stocked, all that is left to do is prepare an intermediate split shaft of a predetermined length, use the sprocket as a coupling, and attach the intermediate split shaft to this. A conveyor shaft of the desired length can be obtained by simply fitting and connecting the two.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIGS. 1 and 2 show the details of the conveyor shaft, and FIG. 3 shows the structure of the connecting part of the conveyor shaft.
FIG. 4 shows the entire chain conveyor, in which driving and driven conveyor shafts 2 and 3 each having a pair of sprockets 1 and 1 are connected to a conveyor frame 4. The output shaft 6 of the motorized reducer 5 and the driving conveyor shaft 2 are installed at both ends in the longitudinal direction.
are interlocked and connected by a chain type transmission mechanism 7, and
The endless conveyor chains 8, 8 are wound around the two pairs of sprockets 1, 1 of both conveyor shafts 2, 3, and the endless conveyor chains 8, 8 are wound around the ring plates a, a of the two sets of conveyor chains 8, 8. A workpiece mounting table 9 is provided.

The driving conveyor shaft 2 is shown in FIGS. 1 and 3.
It is configured as shown in the figure.

That is, the shaft body provided with the pair of sprockets 1, 1 is divided into three parts at the sprocket mounting part, and the middle divided shaft 10 is formed into a polygonal shape (a hexagonal shape is shown). On the other hand, the remaining two end-side split shafts 12, 1
3 has a circular shaft structure, and the sprocket 1 is integrally connected to the shaft end on the shaft split side (the example is an integrally formed product by forging, but it is also possible to use an integrally connected form in which separate sprockets are welded). ), and a different diameter connecting hole 11 having a polygonal shape corresponding to the different diameter shaft portion of the intermediate split shaft 10 and capable of fitting and connecting the different diameter shaft portion is fitted into each of the sprockets 1, 1. It is made by combining.

The other driven conveyor shaft 3 is also constructed in the same manner as the driving conveyor shaft 2.

That is, as shown in Fig. 3 with the part number written in parentheses () and shown in conjunction with Fig. 2, a pair of sprockets 1,
1 is divided into three parts at the sprocket mounting part, and the middle divided shaft 1 is divided into three parts at the sprocket mounting part.
4 has a polygonal (hexagonal shape is shown) shaft structure with different diameters, while the remaining two end-side split shafts 1
6 and 16 have a circular shaft structure, and the sprocket 1 is integrally connected to the shaft end on the shaft division side thereof, and the shaft part has a polygonal shape corresponding to the different diameter shaft part of the intermediate divided shaft 14, and the different diameter shaft part Different diameter connecting holes 15 that can be fitted and connected
are fitted into each of the sprockets 1, 1.

As mentioned above, in the driving and driven conveyor shafts 2 and 3, the pair of sprockets 1 and 3 from the shaft ends of the conveyor shafts 2 and 3
The dimensions l ₁ , l ₂ up to 1 and the pivot positions of the bearings 17, 17 remain unchanged regardless of the size of the spacing between the sprockets 1, 1, and one end of the drive conveyor shaft 2 The side split shaft 13 and the end split shafts 16, 16 of the driven conveyor shaft 3 have exactly the same dimensions, so there are a total of four end split shafts 12 of the above two types. ,13,1
6 and 16 as one set, and if a large number of these are machined and stocked in advance, the only thing left to do is prepare two intermediate split shafts 10 and 14 with a length corresponding to the spacing L between the sprockets 1 and 1. By simply fitting this onto the sprockets 1, 1, a pair of driving and driven conveyor shafts 2, 3 of desired length can be obtained instantly.

Although the intermediate dividing shafts 10 and 14 have a hexagonal configuration throughout, they can be changed to any other polygonal shape such as a quadrilateral. may be formed on the shaft portion with a different diameter by the length of the connection to the connection hole 11 or 15.

[Effect of idea]

As explained above, in the present invention, in a conveyor shaft for a chain conveyor configuration, the dimensions from the shaft end to the pair of sprockets and the position of the shaft body supported by the bearing are This was done based on the fact that the spacing between sprockets remains the same regardless of the size of the sprocket.The shaft body is divided into three parts at the sprocket part, and both ends of the intermediate divided shaft are shaped like polygons or other different diameter shaft parts. On the other hand,
A sprocket is integrally connected to each split shaft on the end side, and each sprocket has a
A feature is that a connecting hole is formed for fitting and connecting the ends of the intermediate split shaft, so that the intermediate split shaft can be detachably connected between the pair of end-side split shafts.

Therefore, according to the present invention, it is sufficient to prepare a large number of single type of dividing shafts on the pair of end portion sides.
Then, by preparing a plurality of intermediate split shafts with appropriate lengths, and connecting them between a pair of end-side split shafts using the intermediate split shafts with appropriate lengths, the desired length can be obtained. The length of the conveyor shaft can be obtained instantly. Therefore, a conveyor shaft corresponding to the size of the workpiece to be transported can be obtained very easily and easily. According to the present invention, the split shaft on the end side can be used in common for conveyor shafts of different lengths, so there is no need to waste it.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a detailed view of the driving conveyor shaft, FIG. 2 is a detailed view of the driven conveyor shaft, and FIG. 3 is a perspective view showing the structure of the connecting part of the conveyor shaft. , FIG. 4 is a schematic overall view of the chain conveyor. 1... Sprocket, 10, 14... Intermediate split shaft, 11, 15... Different diameter connecting hole, 12, 13, 1
6... End side split shaft.

Claims (1)

[Scope of utility model registration request] In a conveyor shaft in which a shaft body is provided with a pair of sprockets for winding a conveyor chain, the shaft body is divided into three parts at the sprocket part, and both ends of the intermediate divided shaft are formed into shaft parts of different diameters such as polygons. On the other hand, a sprocket is integrally connected to each of the split shafts on the end side, and a connecting hole for fitting and connecting the end of the intermediate split shaft is formed in each of the sprockets. A conveyor shaft characterized in that an intermediate divided shaft can be detachably connected between the divided shafts on the side.