JP2012012208A - Conveyance chain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conveyance chain which is easily assembled and disassembled, thereby enabling an abrasion progress of the chain to be prevented and enabling the fatigue resistance of the chain to be improved, and which is prevented from twisting thereby stably capturing and conveying an article to be conveyed.SOLUTION: The conveyance chain 100 includes a pair of left and right bushes 130 and 130 loosely fitted in the outer peripheral surface of a connecting pin 120 from both left and right sides of an inner plate 110, a pair of left and right outer plates 140 and 140 for fitting ends of the bushes 130 in a pair of front and rear bush pressure insert holes 142 by pressure, a roller 150 loosely fitted in the outer peripheral surface of the bush 130, a pair of left and right bracket members 160 and 160 having blind holes 162 detachably fitted to the other ends of the bushes 130 to support them, and a conveying means 170 for interconnecting the pair of left and right bracket members 160 to capture an article W to be conveyed.

Description

  The present invention relates to a transport chain that captures and transports a transported object, and particularly relates to a transport chain in which a pair of left and right bracket members are connected to each other by transport means.

  The transport chain is required to have strength and wear resistance depending on the use environment. On the other hand, when wear progresses, it is desirable that the carrying chain can be disassembled so that the worn portion can be quickly replaced.

Conventionally, a pair of outer plates provided facing each other and having pin holes at both ends, a pair of inner plates disposed inside the outer plates and having bush holes at both ends, and provided inside the inner plate There is known a transport chain including a bush having a through hole in the outer plate, a pin hole in the outer plate, a bush hole in the inner plate, and a pin that rotatably connects the outer plate and the inner plate through the bush through hole. (For example, refer to Patent Document 1).
And the pin of such a conveyance chain has a retaining insertion hole for preventing the pin from falling off, and a retaining member is inserted into the retaining insertion hole.
In addition, in a conventional transport chain, a transporting means such as a bucket for transporting a transported object is known to be joined to an attachment mounting portion of an outer plate with a bolt or the like.

JP 2009-085392 (column 7)

  In the conventional chain that can be disassembled as described above, it is necessary to insert a retaining member to prevent the pin from falling off when assembling the chain and to attach a bolt or the like for joining the chain and the attachment when attaching the attachment. In the case of an attachment-type transport chain in which attachments are connected to attachment attachment parts of a pair of left and right outer plates, if the roller is damaged due to impact load due to meshing with the sprocket, Since it is necessary to disassemble the chain after removing the attachment and replace the roller, there is a problem that it takes a lot of time to assemble and disassemble the chain.

  In addition, the pin is loosely fitted to the outer plate to ensure the chain bending action, and the surface pressure of the pin hole of the pin and the outer plate increases, so that the wear progresses quickly, and there is a gap between the pin and the plate hole. There is a problem that the fatigue strength of the chain decreases because of the presence of

  In the transport chain that meshes with the sprocket via the roller, the chain is driven by using one sprocket, so that the transport chain is twisted, and the capture and transport of the transported object becomes unstable. There was a problem.

  Therefore, the present invention solves the conventional problems, that is, the object of the present invention is to easily assemble and disassemble the transport chain to prevent the chain from progressing and An object of the present invention is to provide a transport chain that increases the fatigue strength and prevents twisting of the transport chain, and stably captures and transports the transported object.

  According to the first aspect of the present invention, there is provided an inner plate having a pair of front and rear pin press-fitting holes, a connecting pin press-fitted into the pin press-fitting hole of the inner plate, and an outer peripheral surface of the connecting pin from both the left and right sides of the inner plate. A pair of left and right bushes to be fitted, a pair of left and right outer plates for fitting one end of the bushing into a pair of front and rear bushing press-fitting holes and connecting the inner plate to each other in the longitudinal direction of the chain via the connecting pin A pair of left and right bracket members having a roller that is loosely fitted to the outer peripheral surface of the bush, a blind hole that is detachably fitted to and supported by the other end of the bush, and a pair of left and right bracket members are connected to each other to capture the conveyed product. The above-described problems are solved by being constituted by the conveying means.

  According to a second aspect of the present invention, in addition to the configuration according to the first aspect, the pair of left and right outer plates are disposed so as to face each other close to the inner plate, so that the roller is disposed between the outer plate and the bracket member. The above-described problems are further solved by being arranged in the above.

  According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, the pair of left and right bracket members and the conveying means are detachably connected by fastening means including bolts and nuts. Thus, the above-described problems are further solved.

  In addition to the structure according to any one of claims 1 to 3, the present invention according to claim 4 is described above because the transport means is configured by a bucket that captures and transports a transported object. It solves the problem further.

  Therefore, the present invention provides an inner plate having a pair of front and rear pin press-fitting holes, a connecting pin press-fitted into the pin press-fitting hole of the inner plate, and left and right sides that are loosely fitted to the outer peripheral surface of the connecting pin from the left and right sides of the inner plate. A pair of bushings, a pair of left and right outer plates that press-fit one end of the bushings into a pair of front and rear bushing press-fit holes and connect the inner plates to each other in the longitudinal direction of the chain via a connecting pin, and an outer peripheral surface of the bushing A roller for loose fitting, a pair of left and right bracket members having a blind hole that is detachably loosely fitted to and supported by the other end of the bush, and a conveying means for connecting the pair of left and right bracket members to each other to capture a conveyed product By being constituted by the chain, not only the transported object is captured and transported by the transporting means by the circular traveling of the chain, but also the following specific effects can be achieved.

  According to the carrying chain of the present invention according to claim 1, the pair of left and right bracket members having a blind hole that is detachably fitted to and supported by the other end of the bush and the pair of left and right bracket members are connected to each other. Since the entire transport chain is connected only by connecting the transport means and the bracket member, the transport chain can be easily assembled and disassembled. Further, even when the roller is damaged due to an impact load caused by meshing with the sprocket, the roller can be easily replaced.

  Also, an inner plate having a pair of front and rear pin press-fitting holes, a connecting pin press-fitted into the pin press-fitting hole of the inner plate, and a pair of left and right bushes fitted loosely from the left and right sides of the inner plate to the outer peripheral surface of the connecting pin, And a pair of left and right outer plates that press-fit one end of the bushing into a pair of front and rear bushing press-fit holes and connect the inner plate to each other in the longitudinal direction of the chain via the connecting pin, Since there is no gap between the inner plate and between the bush and the outer plate, the fatigue strength of the conveying chain can be improved and the occurrence of wear damage at the press-fit portion can be prevented.

  Further, a pair of left and right bushes that are loosely fitted to the outer peripheral surface of the connecting pin from both the left and right sides of the inner plate, one end of the bushing is press-fitted into a pair of front and rear bushing press-fit holes, and the inner plate is chained via the connecting pin. By comprising a pair of left and right outer plates that are mutually connected in the longitudinal direction and a roller that is loosely fitted to the outer peripheral surface of the bush, the two sprockets abut against the pair of left and right rollers, respectively. Since it is driven, twisting of the transport chain can be prevented, and the transported object can be captured and transported stably.

  According to the transport chain of the present invention according to claim 2, in addition to the effect exerted by the transport chain according to claim 1, the pair of left and right outer plates are disposed so as to face each other close to the inner plate. Since the roller is disposed between the outer plate and the bracket member, it is possible to easily replace the wear-damaged roller by releasing the connection between the conveying means and the bracket member and removing the bracket member. .

  According to the conveying chain of the present invention according to claim 3, in addition to the effect exerted by the conveying chain according to claim 1 or 2, the pair of left and right bracket members and the conveying means include a bolt and a nut. Because it is detachably connected by the fastening means, the force required to connect the transport means and the bracket member can be obtained by the tightening force of the bolt and nut, so that the transport chain can be assembled easily and reliably. Can be disassembled.

  According to the conveying chain of the present invention according to claim 4, in addition to the effect exhibited by the conveying chain according to any one of claims 1 to 3, the conveying means is constituted by a bucket for conveying an object to be conveyed. As a result, the conveyed item is scraped off by the bucket, so that even a loose material such as a fertilizer, a sample, and a grain can be efficiently captured and conveyed.

The schematic diagram of the bucket elevator to which the chain for conveyance is applied. The schematic diagram of the chain for conveyance which is one Example of this invention. The schematic diagram of the chain for conveyance except the conveyance means which is one Example of this invention. FIG. 4 is an exploded view of the transport chain shown in FIG. 3. The usage aspect figure of the chain for conveyance which is one Example of this invention. The top view of the chain for conveyance except the conveyance means which is one Example of this invention. FIG. 6 is an AA cross-sectional view of the conveyance chain shown in FIG. 5.

  The present invention includes an inner plate having a pair of front and rear pin press-fitting holes, a connecting pin that is press-fitted into the pin press-fitting hole of the inner plate, and a pair of left and right sides that are loosely fitted to the outer peripheral surface of the connecting pin from the left and right sides of the inner plate. A bush, a pair of left and right outer plates that press-fit one end of the bush into a pair of front and rear bushing press-fit holes and connect the inner plate to each other in the longitudinal direction of the chain via a connecting pin, and loosely fit to the outer peripheral surface of the bush And a pair of left and right bracket members having a blind hole that is detachably fitted to and supported by the other end of the bush, and a conveying means for connecting the pair of left and right bracket members to each other to capture a conveyed product. As long as the assembly and disassembly of the chain can be easily achieved, any specific embodiment may be used.

  In addition, the conveying means incorporated in the conveying chain of the present invention can be a bucket, a slat, a pan or an apron as long as it couples the left and right brackets to each other and captures and conveys the conveyed item. It does not matter.

Hereinafter, a conveying chain 100 according to an embodiment of the present invention will be described with reference to FIGS.
Here, FIG. 1 is a schematic diagram of a bucket elevator to which the conveyance chain of the present invention is applied, FIG. 2 is a schematic diagram of a conveyance chain that is an embodiment of the present invention, and FIG. FIG. 4 is a schematic diagram of a transport chain excluding transport means according to an embodiment of the invention, FIG. 4 is an exploded view of the transport chain shown in FIG. 3, and FIG. 5 is an embodiment of the present invention. FIG. 6 is a plan view of a transport chain excluding transport means according to an embodiment of the present invention, and FIG. 7 is an A- view of the transport chain shown in FIG. It is A sectional drawing.

First, a transport chain 100 according to an embodiment of the present invention is used in a conveyor chain for capturing and transporting bulk materials such as fertilizers, samples, and grains. As shown in FIGS. An inner plate 110 having a pair of front and rear pin press-fitting holes 112, a connecting pin 120 press-fitted into the pin press-fitting hole 112 of the inner plate 110, and a free play from both left and right sides of the inner plate 110 on the outer peripheral surface of the connecting pin 120. A pair of left and right bushes 130 and 130 to be fitted, and one end of the bush 130 are press-fitted into the pair of front and rear bush press-fit holes 142 and the inner plate 110 is connected to each other in the longitudinal direction of the chain via the connecting pin 130. A pair of outer plates 140 and 140 are provided.
The transport chain 100 includes a roller 150 loosely fitted on the outer peripheral surface of the bush 130, and a pair of left and right bracket members 160, 160 having a blind hole 162 that is loosely fitted and supported on the other end of the bush 130. , And a conveying means 170 for connecting the pair of left and right bracket members 160 and 160 to each other.

The transport chain 100 includes transport means 170 formed by a bucket that captures and transports a transported object W such as a bulk, and bracket members 160 and 160 are connected to each other via the transport means 170.
The bracket member 160 and the transporting unit 170 include a bolt 181 inserted into a hole provided in the transporting unit 170 and a bolt insertion hole 164 of the bracket member 160, and a nut 182 engaged with the bolt 181. The conveying means 170 is coupled and clamped.

  As shown in FIG. 7, the connecting pin 130 includes a pin small-diameter portion 122 that is loosely fitted to the bush 130 and a pin large-diameter portion 124 that is press-fitted to the inner plate 110, and the end of the bush 130 has a large pin. The other end of the bush 130 is in contact with the blind hole 162, and the lubricating oil is sealed between the bush 130, the pin small diameter part 122, the pin large diameter part 124, and the blind hole 162. ing.

Therefore, specific forms of the bracket member 160 and the conveying means 170, which are the most characteristic features of the conveying chain 100 of this embodiment, will be described in detail with reference to FIGS.
First, a pair of left and right bracket members 160 and 160 having a blind hole 162 that is removably fitted to and supported by the other end of the bush 130, and a pair of left and right bracket members 160 and 160. Are connected to each other, and conveying means 170 for capturing a conveyed product is provided.
As a result, the entire transport chain 100 is connected only by the connection between the bracket member 160 and the transport means 170.

Further, the transport chain 100 of this embodiment includes an inner plate 110, a connecting pin 120 press-fitted into the pin press-fitting hole 112 of the inner plate 110, and an outer peripheral surface of the connecting pin 120 from both the left and right sides of the inner plate 110. A pair of left and right bushes 130, 130 that are loosely fitted, and one end of the bush 130 are press-fitted into a pair of front and rear bushing press-fit holes 142, and the inner plate 110 is connected to each other in the longitudinal direction of the chain via the connecting pin 120. A pair of left and right outer plates 140 and 140 are provided.
Accordingly, there is no gap between the connecting pin 120 and the inner plate 110 and between the bush 130 and the outer plate 140.

Further, the transport chain 100 of this embodiment has a pair of left and right bushes 130, 130 loosely fitted to the outer peripheral surface of the connecting pin 120 from the left and right sides of the inner plate 110, and a pair of front and rear bushing press-fit holes. 142 and a pair of left and right outer plates 140 and 140 for connecting the inner plate 110 to each other in the longitudinal direction of the chain via the connecting pin 120, and a roller 150 for loosely fitting to the outer peripheral surface of the bush 130. I have.
As a result, two sprockets (not shown) are brought into contact with the pair of left and right rollers 150 and 150 to drive the conveying chain 100.

A pair of left and right outer plates 140 and 140 are disposed in opposition to each other in the vicinity of the inner plate 110, and the pair of left and right bracket members 160 and 160 and the conveying means 170 are detachable by fastening means including bolts 181 and nuts 182. It is connected and the conveyance means 170 is comprised with the bucket which captures the conveyed product W and conveys.
As a result, the roller 150 is disposed between the outer plate 140 and the bracket member 160, and a force necessary to connect the bracket member 160 and the conveying means 170 is obtained by the tightening force between the bolt 181 and the nut 182. The transport chain 100 scrapes the transported object W with the bucket of the transport unit 170.

The transport chain 100 of the present embodiment thus obtained includes an inner plate 110 having a pair of front and rear pin press-fitting holes 112, a connecting pin 120 press-fitted into the pin press-fitting holes 112 of the inner plate 110, A pair of left and right bushes 130, 130 that are loosely fitted from the left and right sides of the inner plate 110 to the outer peripheral surface of the connecting pin 120, and one end of the bush 130 are press-fitted into the pair of front and rear bushing press-fit holes 142, and the connecting pin 120 is A pair of left and right outer plates 140 and 140 that interconnect the inner plate 110 in the longitudinal direction of the chain, a roller 150 loosely fitted to the outer peripheral surface of the bush 130, and a loosely detachably fitted to the other end of the bush 130. A pair of left and right bracket members 150, 150 having a blind hole 162 to be supported and a pair of left and right bracket members 160, 160 are mutually connected. Linked to is constituted by a conveying means 170 to capture conveyed W.
Therefore, the transport chain 100 can be easily assembled and disassembled, and the roller 150 can be easily replaced even when the roller 150 is damaged due to an impact load caused by meshing with the sprocket. It is possible to improve the fatigue strength of the transport chain 100 and to prevent the occurrence of wear damage at the press-fit portion, to prevent the transport chain 100 from being twisted and to stably capture and transport the transported object W. can do.

In addition, a pair of left and right outer plates 140 and 140 are disposed to face each other in the vicinity of the inner plate 110, and the pair of left and right bracket members 160 and 160 and the conveying means 170 are detachably connected by bolts 181 and nuts 182. In addition, the conveying means 170 is configured by a bucket that captures the conveyed product W.
Accordingly, by removing the connection between the conveying means 170 and the bracket member 160 and detaching the bracket member 160, it is possible to easily replace the roller 150 that has been damaged by wear, and to assemble the conveying chain 100 easily and reliably. The effect is enormous, because it can be decomposed and can be efficiently captured and transported even if it is a bulk such as fertilizer, sample, and grain.

DESCRIPTION OF SYMBOLS 100 ... Chain for conveyance 110 ... Inner plate 112 ... Pin press-fit hole 120 ... Connecting pin 122 ... Pin small diameter part 124 ... Pin large diameter part 130 ... Bush 140 ... Outer plate 142 ... Bush press-fit hole 150 ... Roller 160 ... Bracket member 162 ... Blind hole 164 ... Bolt insertion hole 170, 570 ... Conveying means 181 ... Bolt 182 ... Nut 500 ・ ・ ・ Bucket elevator S ・ ・ ・ Sprocket W ・ ・ ・ Conveyed material

Claims (4)

  An inner plate having a pair of front and rear pin press-fitting holes, a connecting pin press-fitted into the pin press-fitting hole of the inner plate, and a pair of left and right bushes loosely fitted to the outer peripheral surface of the connecting pin from both the left and right sides of the inner plate One end of the bush is press-fitted into a pair of front and rear bushing press-fitting holes and the inner plate is mutually connected in the longitudinal direction of the chain via the connection pin, and a pair of left and right outer plates and the outer peripheral surface of the bush. A pair of left and right bracket members having a fitting hole, a blind hole that is detachably loosely fitted to and supported by the other end of the bush, and a pair of left and right bracket members that are connected to each other to convey and convey the conveyed product And a conveying chain.   The transporting chain according to claim 1, wherein the pair of left and right outer plates are disposed to oppose each other in the vicinity of the inner plate.   The transport chain according to claim 1 or 2, wherein the pair of left and right bracket members and the transport means are detachably connected by fastening means including bolts and nuts.   The transporting chain according to any one of claims 1 to 3, wherein the transporting means includes a bucket that captures a transported object.

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