JPH0512173Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention allows a support shaft for suspending a transported object to be easily attached between two chains arranged in parallel, and makes it easy to assemble and remove the support shaft. This invention relates to a conveyance chain that can improve efficiency.

[Conventional technology]

A so-called tray-type chain conveyor is known in which a support shaft from which a transported object or a cage containing the transported object is hung is spanned between two circulating chains to convey the transported object as the chains run. There is.

In such a conveyor, as shown in FIGS. 6 to 8, a bearing body b is conventionally fixed to an attachment part a1 attached to a chain body a using, for example, a reamer bolt c, and the shaft hole of the bearing body b is The end part e of the support shaft d was inserted into the support shaft d. Therefore, since a step f is provided between the support shaft d and the middle part of the support shaft d to prevent it from falling off, in order to install the support shaft d, it is necessary to fit the support shaft d into the bearing body b in advance. Later, the bearing body b must be attached to the chain body a.

[Problem that the invention attempts to solve]

In order to fix the bearing body b to which the support shaft d is assembled to the chain body a in this manner, it is difficult to align the bearing body b for inserting the reamer bolt c, and the assembly requires time and effort.

Another method is to attach the bearing body b to the chain body a in advance, move the chain body a laterally, and insert the end e of the support shaft d into the bearing body b, but due to the width of the device, the chain body The amount of movement of chain a is limited, and furthermore, chain body a is usually guided by guide rails h, etc., and it is not easy to move chain body a in the lateral direction.

The present invention is based on the fact that a hole for inserting the spindle is formed in a support fitting consisting of two arm bodies that are attached to the chain body by joining the two arms, and the spindle can be easily assembled. The object of the present invention is to provide a conveyance chain that can solve the above-mentioned problems.

[Means for solving problems]

An embodiment of the present invention that can achieve the above-mentioned objects and solve the problems will be described below with reference to the drawings.

In FIGS. 1 to 4, the conveying chain 1 includes two chain bodies 2, 2 that revolve around the same and parallel peripheral surfaces, and two arm bodies 8 that are pivotally supported by the chain body 2 and protrude outward. , 8 are mounted facing each other, and by connecting the two arm bodies 8, 8, the support fitting 3
A hole 9 can be formed in the hole 9 into which the bearing body 7 that pivotally supports the end 5 of the support shaft 4 extending between the two chain bodies 2 and 2 is inserted, and a locking part 12 is provided to prevent the bearing body 7 from falling off. It is growing.

The chain body 2 includes an inner link 15 formed by connecting two opposing link plates 21, 21 with a pair of bushes 22, 22 spaced apart from each other, and an inner link 15 formed by inserting the bushes 22 and It is formed by alternately combining pins 23, 23 arranged at pitch intervals with an outer link 16 formed by fitting into a link plate 24 arranged outside the inner link 15.

In addition, the chain body is arranged to face each other, for example, a pair of drive chain wheels are arranged at equal intervals on a drive shaft and a driven shaft,
By wrapping each of the chain bodies endlessly around the outer edge of the driven chain wheel, the two chain bodies 2, 2 can revolve around the same and parallel circumferential surfaces. Note that instead of the chain wheel, a pair of annular guide rails formed in the same shape may be arranged facing each other and parallel to each other, and the chain body 2 may be rotated along the guide rails.

In this example, the support fitting 3 is disposed on the outer link 16, and the support fitting 3 is attached to the pin 2 of the outer link 16.
The pin 3A is formed longer than the other outer links 16, and both ends of the pin 23A protrude from the outer surface of the link plate 24.

The arm body 8 is in the form of an elongated plate, and a pin hole 25 is provided at one end thereof, into which the protruding end of the pin 23A can be loosely fitted.

Also, by fitting the pin holes 25 of the arm bodies 8 to the protruding ends of the pins 23A of the outer link 16, the two arm bodies 8, 8 are attached to the chain body 2. Support metal fittings 3 are formed which are pivotally supported at intervals in the direction of movement of the rotor and protrude outward from the circumferential surface.

Further, the support fittings 3 are provided on each of the two chain bodies 2, 2, facing each other.

The arm body 8 can be rotated around the pin hole 25, and contact surfaces 26, 26 are formed on the opposing edges of the other end, on which the two arm bodies 8, 8 come into contact with each other. A bolt hole 27 for attaching the connecting fitting 10 is bored in the middle of the hole 8 .

The connecting fitting 10 has a rectangular flat plate shape, and has two through holes 29, 29 at positions that coincide with the bolt holes 27, 27 when the two arm bodies 8, 8 are brought into contact with each other. to drill. Further, the two arm bodies 8, 8 are connected in a triangular shape by inserting bolts 30, 30, which pass through the through holes 29, 29 and the bolt holes 27, 27, into the connecting fitting 10. In this example, a bush 31 externally fitted onto a bolt 30 is interposed between the arm bodies 8 at both ends to position the arms 8, and simultaneously fix the arm bodies 8, 8 located on both sides.

Each arm body 8, 8 has a substantially semicircular groove 9A, 9A facing each other and opening at the aforesaid surface 26, 26, and by connecting the two arm bodies using the connecting fitting 10 as described above, the hole portion 9 having its center on the aforesaid surface 26 is formed.

Note that in this example, a straight portion 32 is provided at the bottom of the groove 9A.

As shown in FIG. 4, the support shaft 4 is a long shaft that spans between the two chain bodies 2, and in this example, a cage body A capable of accommodating the transported object W is provided at the intermediate portion 33. In addition to being suspended, bearing portions 35 are provided at both end portions 5 of the intermediate portion 33 via a step 34 from the intermediate portion 33 and having a smaller diameter than the intermediate portion 33 and supported by the bearing body 7 .

The bearing body 7 pivotally supports the end of the support shaft 4 through its shaft hole 6, and on the outer peripheral surface of the bearing body 7, in this example, a straight line of the groove portion 9A is formed at a position to fit into the hole portion 9. The locking portion 12 is formed of a cutout groove 37 into which the portion 32 fits. By locking the linear portion 32 with the locking portion 12, the bearing body 7 is prevented from falling off in the longitudinal direction. Further, by supporting the support shaft 4 on the bearing body 7 with the step 34, the support shaft 4 is prevented from falling off in the longitudinal direction through the bearing body 7.

In this example, the cage body A has pillars erected at the four corners of the bottom plate B as shown in FIG. The intermediate portion 33 of the support shaft 4
Shaft holes 36, 36 are provided in which the screws can be loosely fitted. Therefore, by placing an object W to be transported, such as a car, on the bottom plate B, the support shaft 4 can suspend the object W.

Further, in this example, the outer link 16 on which the support fitting 3 is arranged has a flanged roller 46 that can guide the chain body 2 along the rail by extending the pin 23A to one side. , 46 are fitted externally.

[Effect]

The two arm bodies 8, 8 of the support fitting 3 are opened outward to separate the hole 9, and the bearing body 7 with the end 5 of the support shaft 4 inserted into the shaft hole 6 is inserted into the hole 9.
to be inserted into. Furthermore, by connecting the two arm bodies 8, 8 via the connecting fitting 10, the notch groove 37 of the bearing body 7 is fitted into the straight part 32 of the hole 9, so that the longitudinal axis of the support shaft 4 It is inserted into the hole 9 in a state where it is prevented from falling off in the direction.

Therefore, the support shaft 4 is spanned between the chain bodies 2, 2, and the two chain bodies 2, 2 can orbit in parallel circumferential surfaces with the support shaft 4 attached.

〔Example〕

FIG. 5 shows another example of the support fitting 3.

In this example, one end of each of the two arm bodies 8, 8 is rotatably supported by a pin on the link plate 24 at a distance in the pitch direction, and a bolt hole 39 of the two arm bodies 8, 8 is supported by a pin. , 39 are inserted into the two arm bodies 8, 8 using bolts 41 that are inserted through both the arms 8, 8.
Connect them in an X shape. In this way, the connecting fitting 1 consists of the bolt 41 passing through the bolt holes 39, 39.
The bearing body 7 can be attached to the through hole 9 by connecting the arm bodies 8, 8 by 0, and the support shaft 4 and the bearing body 7 can be attached by separating the free ends of the arm bodies 8, 8. can be removed.

In the conveyance chain of the present invention, the support metal fittings may be formed separately from the ring plate and both may be connected using a fixing device such as a bolt, or the support metal fittings 3 may be provided on the inner link 15. .

Also, if the locking part can prevent the bearing body from falling off,
Various structures can be adopted, such as those using screws or retaining rings.

As described above, the conveying chain of the present invention can be modified into various forms.

[Effect of idea]

As mentioned above, the conveyance chain of the present invention has two chain bodies, and support fittings having arm bodies that are pivotally supported by the chain bodies are attached facing each other,
In addition, the support fitting has a hole into which the bearing body that supports the spindle by connecting the two arm bodies is inserted, so the spindle can be easily assembled to the chain body, increasing work efficiency. In addition to being durable, it is also useful for reducing costs because it can be easily formed.

[Brief explanation of the drawing]

Figure 1 is a front view showing one embodiment of the present invention;
The figure is a side view, Figure 3 is a perspective view of the support fitting with the two arms separated, Figure 4 is a perspective view of an example of suspending a transported object from the support shaft, and Figure 5 is the support. A perspective view showing another example of the metal fitting, and FIGS. 6 to 8 are diagrams illustrating the prior art. 2... Chain body, 3... Support metal fittings, 4...
Support shaft, 5... End, 8... Arm body, 10... Connection fitting, 12... Locking part, W... Transport object.

Claims (1)

[Scope of utility model registration request] Supporting metal fittings having two arm bodies, one end of which is pivotally supported by the chain body and which protrudes outward from the circumferential surface, are attached facing each other to two endless chain bodies that revolve around the same and parallel circumferential lines. At the same time, by connecting the two arm bodies using a removable connecting fitting, the end of the shaft that can straddle the two chain bodies and suspend the transported object can be rotatably supported. A hole into which the bearing body is inserted is formed in the opposite edge of the other end of the arm body, and the arm body is fitted into the outer peripheral surface of the bearing body, so that the bearing body can be pulled out in the longitudinal direction. A conveyance chain with a locking part to prevent it from falling.