KR101573045B1 - Bucket chain guide roller for continuous ship unloader - Google Patents

Abstract

A bucket chain guide roller for a continuous ship unloader comprises: a guide bush inserted into a connection shaft; an integrated roller assembly having an inner bush wherein the guide bush is inserted and having an outer roller wherein the inner bush is inserted and having a bearing unit interposed between the inner bush and the outer roller and uniformly attached and detached from the guide bush while the guide bush is fixated to the connection shaft; and a fastening groove and a fastening protrusion to fasten the inner bush to the guide bush. The fastening protrusion is guided by the fastening protrusion guide groove to be easily fastened with the fastening groove.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bucket chain guide roller for a continuous unloading machine,

The present invention relates to a bucket chain guide roller for a continuous unloading machine.

Bulk-type cargoes such as coal, grain, cement, and minerals shipped to the vessel may be unloaded to the berth via the unloader and may be unloaded from the continuous ship unloader (CSU) shown in Figures 1 and 2 1 transports the bulk cargo through the bucket elevator 3 after being pumped up using the bucket 2. [

The bucket 2 of the continuous freight unloading machine 1 is coupled to the chain 4 and the movement of the bucket 2 is prevented from being transmitted to the chain 4 while preventing the chain 4 from being dislodged from the drive sprocket A guide bucket guide roller 10 is attached.

Korean Unexamined Patent Publication No. 10-1265271 (registration number) discloses a general continuous type of unloading machine. 3 and 4, the bucket guide roller includes a coupling sleeve, a main body, and a bearing interposed between the coupling sleeve and the main body, and the bucket guide roller is coupled to the coupling shaft. do. In addition, since the fluidity of the bearing can be deteriorated if fine coal powder or the like flows into the bearing, a sealing unit is provided.

On the other hand, a continuous type unloading unit for loading bulk type minerals is capable of unloading more than 10,000 tons per hour, and the bucket guide rollers are constantly subjected to considerable force, which may result in damage or periodic maintenance interruption .

Damaged bucket guide rollers can be replaced but can not be unloaded during replacement and may exceed a fixed berth period for loading or unloading cargo. In this case, the shipper pays a demurrage to the shipping company, and it is important to match the fixed berth period from the shippers' perspective.

However, in general, a continuous type unloading unit (1) used for unloading bulk-type minerals is very large and it is practically difficult to equip extra equipment for several hundred billion won at the price.

Therefore, reducing the replacement time of the bucket guide rollers at the loading site is very important not only to reduce the unloading time but also to reduce the economic loss of the shippers due to the payment of the fee.

The present invention provides a bucket chain guide roller for a continuous unloading machine which can reduce replacement time of a bucket guide roller.

According to an aspect of the present invention, there is provided a continuous type bucket chain guide roller for a chain conveyer, which is installed on a connecting shaft of a chain to which a bucket of a continuous unloading machine is coupled, A guide bush into which the shaft is inserted; The inner bushing, the outer bushing, the outer bushing, the inner bushing, the outer bushing, the inner bushing, the outer bushing, and the outer bushing, An integral roller assembly that is removably removed from the bush; And a coupling bush provided on one side of the guide bush and the inner bushing for coupling the inner bush to the guide bush, a coupling protrusion provided on the other side and coupled to the coupling groove, and a coupling protrusion provided on the same side as the coupling groove, And the coupling protrusion guide groove and the coupling groove for guiding the coupling roller to the coupling groove may include a coupling member which is provided on a straight line which is parallel to each other along the direction in which the integral roller assembly is inserted into the coupling axis, have. The integrated roller assembly can be removed from the guide bushes at a time in a state in which the guide bushes are fixed to the connection shafts, thereby shortening the replacement time of the integral roller assembly.

The binding projections and the binding grooves can be disposed at different places in the guide bush and the inner bushing, but the binding projecting guide grooves are disposed at the same positions as the binding grooves. On the other hand, the coupling protrusion guide groove and the coupling groove are provided so as not to lie on the same straight line parallel to the axial direction of the coupling shaft, and the coupling protrusion is not directly coupled to the coupling groove in the linear direction in which the integral roller assembly is inserted, And can be bound to the binding groove by bypassing with respect to the linear direction.

For example, in the case of a continuous unloading machine disclosed in Korean Patent Registration No. 10-1265271 (registration number), when a bearing is detached or detached, a cover The fastening member and the cover member are separated, and then the main body is separated. After removing the snap ring, the bearing can be removed from the connecting sleeve. As described above, there is a considerable number of steps for replacing the bearings, which can result in a fee for the berthing due to the berthing period.

On the other hand, the bucket chain guide roller for a continuous unloading machine according to the present invention can separate and assemble the bearing portion and the outer roller integrally, and when the one-piece roller assembly is coupled to the connecting shaft, The fastening protrusion can be easily inserted into the fastening groove, so that the replacement time can be greatly reduced.

On the other hand, as a fastening member capable of fastening the one-piece roller assembly to the guide bush, a simple fastening method such as a ring fastening can be simply adopted. In addition, within the range of binding the integral roller assembly to the guide bush, A binding member can be used. For example, the coupling between the inner bush and the guide bush can be realized by a coupling method using protrusions that protrude automatically or manually from the inner bush toward the guide bush.

However, a large-scale continuous unloading unit for unloading bulk-type minerals is capable of unloading several tons to ten thousand tons or more per hour. Since the bucket guide rollers are constantly subjected to considerable force, You must provide cohesion.

That is, the binding member must be designed not only to simplify the mutual fastening between the integral roller assembly and the guide bush to shorten the disassembly and assembly time, but also to sufficiently provide the binding force between the integral roller assembly and the guide bush.

As described above, in order to satisfy both the ease of disassembly and assembly between the integrated roller assembly and the guide bushing through the binding member and the conditions for the mutual binding force, a binding member for resiliently connecting the one- have. Specifically, the binding member includes a coupling protrusion accommodated in a coupling protrusion receiving portion opened toward the outer circumferential surface of the guide bush in the inner bushing, and an elastic member for elastically supporting the coupling protrusion in the coupling bush accommodating portion, And the inner bush can be resiliently coupled to the guide bush by elastically supporting the outer circumferential surface of the guide bush which is in close contact with the inner circumferential surface of the inner bush.

It is possible to easily change the mutual coupling force between the one-piece roller assembly and the guide bush by changing the kind of the coupling protrusion by an elastic body such as an elastic spring, a rod shape or a ball shape, Time can be greatly reduced.

On the other hand, although the coupling protrusion may be provided by an integral ball or a rod, the coupling protrusion may again be disposed inside the receptor so as to elastically support the coupling body, the receptor for partially housing the coupling body, and the binding body toward the guide bush And may include an elastic spring.

Although the coupling between the inner bush and the guide bush can be implemented through the coupling protrusion, the coupling bush corresponding to the coupling bush may be provided on the outer peripheral surface of the guide bush to improve the coupling force between the inner bush and the guide bush through the coupling bush, In the present invention, a coupling protrusion guide groove for guiding the coupling protrusion to the coupling groove is provided.

The coupling protrusion guide groove may be provided integrally or separately with the binding groove. For example, in the case where the coupling protrusion guide groove and the coupling groove are provided separately, the coupling protrusion guide groove may include only a forward section along the axial direction of the coupling shaft, and the coupling groove may include an integral roller assembly at the end of the forward section They may be provided adjacently in a state of being spaced apart from each other by a predetermined distance in a direction perpendicular to the binding direction.

Accordingly, after the integral roller assembly is pushed toward the guide bushing by aligning the coupling protrusion and the coupling protrusion guide groove, the integral roller assembly can be rotated in the direction perpendicular to the binding direction to bind the coupling protrusion to the binding groove.

Since the coupling protrusion guide groove and the coupling groove are separated from each other, the coupling protrusion in the coupling protrusion guide groove can be inserted into the coupling groove on the outer peripheral surface of the guide bush to stably mount the integrated roller assembly in the guide bush, The coupling projections of the integral roller assembly do not easily separate from the coupling groove.

In addition, when the binding groove and the coupling projection guide groove are provided separately, the coupling projection guide groove is formed toward the binding groove in a direction perpendicular to the direction in which the integral roller assembly is engaged with the coupling shaft from the end of the forward section in addition to the forward section As shown in FIG.

When the one-piece roller assembly is pushed toward the guide bushing while aligning the coupling protrusions and the coupling protrusion guide grooves, when the one-piece roller assembly is rotated perpendicularly to the binding direction with the guide bushing, It is possible to facilitate the insertion of the binding groove of the binding projections by making the depth gradually increase.

Further, when the binding groove and the coupling projection guide groove are integrally connected, the coupling groove is formed relatively deeper than the outer peripheral surface of the peripheral guide bush or the coupling projection guide groove so that the coupling projections are easily inserted into the coupling groove along the coupling projection guide groove But do not easily detach from the binding groove during use.

In addition, in the present invention, the bearing portion may be a tapered bearing that operates smoothly from a general ball bearing or a roller bearing to an axial load. In particular, by using a tapered bearing, it is easy to prevent the integral roller assembly from separating from the guide bush.

On the other hand, the inner bush and the outer roller may be coupled to each other through a configuration such as a snap ring or a cover member disclosed in Korean Patent Registration No. 10-1265271 (registration number). However, the integral roller assembly according to the present invention is not limited to the above- It can be attached and detached from the connecting shaft all at once without detaching the cover member.

For example, the inner bushing supports one surface of the bearing portion, and the other surface thereof is provided with a cover member covering the inner bush and the outer roller, and the cover member is fastened to the outer roller so that the bearing portion does not separate from the inner bushing and the inner roller , The integral roller assembly can be mounted on the connection shaft at a time or separated.

The bucket chain guide roller for a continuous unloading machine according to the present invention can collectively detach the one-piece roller assembly from the guide bush while the guide bush is fixed to the connection shaft, thereby shortening the replacement time of the integral roller assembly. This makes it easy to adjust the berthing period for loading or unloading and to prevent the economic loss of the shipper due to the delayed work fee.

In addition, it is possible to provide a fastening protrusion guide groove for guiding the fastening protrusion to the fastening groove, thereby facilitating fastening of the integral roller assembly and shortening the replacement work time.

Further, in addition to the coupling protrusions that are elastically coupled to the coupling grooves, an inelastic fixing pin that is always engaged with the fixing pin guide grooves is further provided to prevent the integral roller assembly from deviating in the axial direction of the coupling shaft.

Further, according to the present invention, it is possible to separate or mount the integral roller assembly on the connecting shaft of a conventional bucket chain without any special processing operation.

In addition, since the integrated roller assembly and the guide bushes are elastically coupled to each other, strong coupling between the integrated roller assembly and the guide bushes can be basically achieved, and the fastening and separating operation can be simplified. .

1 and 2 are views for explaining a general continuous type unloading machine.
FIG. 3 is a side cross-sectional view of a guide roller of a bucket chain for a continuous unloading machine according to an embodiment of the present invention when coupled to a connecting shaft of a chain.
4 and 5 are a front view and a side sectional view of the inner bush.
6 is a side cross-sectional view of a bucket chain guide roller for a continuous unloading machine employing a tapered bearing instead of a ball bearing as a bearing part.
7 is a side cross-sectional view of a bucket chain guide roller for a continuous unloading machine employing a rod-shaped coupling protrusion instead of the ball-shaped coupling protrusion shown in Fig.
Figs. 8 and 9 are cross-sectional views showing another shape of the coupling protrusion inserted into the coupling protrusion receiving portion of the inner bushing. Fig.
10 is a view showing the binding groove, the binding projecting guide groove, and the fixing pin guide groove.
11 is a perspective view of the guide bush.
12 is a front view of the inner bush with the coupling protrusions and the fixing pins disposed thereon.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. For reference, the same numbers in this description refer to substantially the same elements and can be described with reference to the contents described in the other drawings under these rules, and the contents which are judged to be obvious to the person skilled in the art or repeated can be omitted.

The continuous freight cargo frees the bulk cargo while circulating the bucket fastened to the chain. A bucket guide roller for guiding the chain is attached to the connection shaft of the chain. When the foreign matter is introduced into the bearing of the bucket guide roller, the bearing fluidity may be deteriorated and the bucket guide roller for transporting thousands to tens of tons of cargoes per hour You will receive strength. Therefore, the bucket guide rollers must be periodically checked or replaced for operational stability.

However, the bucket guide roller is strongly coupled to the connecting shaft of the chain for safety, and the operation of replacing the bucket guide roller is considerably troublesome. In addition, as described above, since the bucket guide roller is not directly pulled out from the connecting shaft but the cover fastening member and the cover member covering the front surface of the roller must be separated one by one, There is a hassle, which can result in the expense of the dock due to overtime.

Therefore, in the situation where the strong binding force between the bucket guide roller and the connecting shaft is taken into consideration, a demand for shortening the replacement time of the bucket guide roller is continuously generated in the field. In the present invention, It provides a bucket chain guide roller for a freight car.

3 is a side cross-sectional view of a guide roller of a bucket chain for a continuous unloading machine according to an embodiment of the present invention coupled to a connecting shaft of a chain, FIG. 4 is a front view of the inner bush, Fig.

3 to 5, a guide roller chain 100 as a bucket chain for a continuous unloading machine is coupled to a connecting shaft 20 of a chain to which a bucket of a continuous unloading machine is coupled, The chain guide roller 100 includes a guide bush 200, an integral roller assembly 300, and a binding member 400.

Hereinafter, a process of installing the guide roller 100 of a bucket chain for a continuous unloading machine on the connecting shaft 20 will be described.

A guide bushing 200 for receiving the connection shaft 20 is mounted on the connection shaft 20 and the guide bushing 200 is mounted on the connection shaft 20 to prevent the guide bushing 200 from coming off the connection shaft 20. [ The first C-shaped ring 212 can be bound to the groove provided at the end.

The integral roller assembly 300 is mounted to the guide bushing 200 after the guide bushing 200 is fastened to the connecting shaft 20 and the integral roller assembly 300 is mounted on the inner bushing 310 An outer roller 320 that receives the inner bush 310 and a bearing 330 that is disposed between the inner bush 310 and the outer roller 320. The inner bush 310 and the outer roller 320 The second C-shaped ring 302 is engaged with the groove provided at the end of the inner bushing 310 to prevent the bearing part 330 from separating from the second bushing 320. [ A sealing member 340 is disposed between the outer roller 320 and the inner bushing 310 to prevent foreign matter introduced between the outer roller 320 and the inner bushing 310 from flowing into the bearing portion 330 .

3, the one-piece roller assembly 300 is designed to be integrally mounted on the guide bush 200. More specifically, the one-piece roller assembly 300 includes an inner bush 310, And a cover member 350 covering the bearing portion 330 on the right side with respect to FIG. 3, and the cover member 350 may be bolted to the outer roller 320. The cover member 350 may be a bolt. At this time, the inner bush 310 is bent in an L-shape so as to be supported on the left side with reference to FIG. 3 of the bearing portion 330. Accordingly, in the process of pushing and pulling the integral roller assembly 300 into the guide bushing 200, the inner bushing 310, the outer roller 320, the bearing portion 330, and the cover member 330, which are the configurations of the integral roller assembly 300, The guide bushes 200 can be bound or separated into one bundle without having to assemble and disassemble them.

That is, the integrated roller assembly 300 can be removed from the guide bushing 200 in a state in which the guide bushing 200 is fixed to the connection shaft 20, thereby shortening the replacement time of the integral roller assembly 300 .

6, the other configurations of FIG. 6 are the same as those of the other configurations shown in FIG. 3 to FIG. However, the tapered bearing is adopted as the bearing portion 1330 in the guide roller of the bucket chain for a continuous unloading machine shown in Fig. In particular, when two tapered bearings are arranged side by side in the direction of the connection axis, the tapered bearings having opposite inclination directions with respect to the direction perpendicular to the direction of the connection axis are arranged side by side in the connection axis direction, It is possible to cancel the force applied to the tapered bearing from left and right with respect to the axial direction, thereby preventing the integral roller assembly from separating from the guide bush.

Hereinafter, the integral roller assembly capable of being detached integrally with the guide bushes will be described in detail. Hereinafter, a binding member for coupling the guide bushes and the inner bushings will be described.

The binding member is basically a component that binds the one-piece roller assembly to the guide bush. Simply, a simple binding method such as a ring fastening may be adopted. In addition, the other roller- Other binding methods can be used. For example, binding between the inner bush and the guide bush can be realized by a binding method using protrusions that automatically or manually protrude from the inner bush toward the guide bush.

However, a large-scale continuous unloading unit for unloading bulk-type minerals is capable of unloading several tons to ten thousand tons or more per hour. Since the bucket guide rollers are continuously subjected to considerable force, You must provide cohesion.

That is, the binding member must be designed not only to simplify the mutual fastening between the integral roller assembly and the guide bush to shorten the disassembly and assembly time, but also to sufficiently provide the binding force between the integral roller assembly and the guide bush.

In this embodiment, as described above, in order to satisfy both the ease of disassembly and assembly between the integrated roller assembly and the guide bushing through the binding member and the conditions for the mutual binding force, the integral roller assembly and the guide bushes Member.

3 to 5, the binding member 400 includes a coupling protrusion 410 (not shown) received in a coupling protrusion receiving portion 314 which is opened toward the outer peripheral surface of the guide bushing 200 in the inner bushing 310, And an elastic body 420 elastically supporting the coupling protrusion 410 in the coupling protrusion receiving portion 314 toward the guide bushing 200. The elastic body 420 is provided as a coil spring.

The coupling protrusion 410 elastically supports the outer circumferential surface of the guide bushing 200 closely contacting the inner circumferential surface of the inner bushing 310 to elastically bind the inner bushing 310 to the guide bushing 200. [

Although the coupling protrusion 410 shown in Fig. 3 is provided in a ball shape, the coupling protrusion may be provided in a rod shape as shown in Fig. The constituent elements of the bucket chain guide roller for a continuous unloading machine shown in Fig. 7 are the same as the other constitutions shown in Figs. 3 to 5 except for the coupling protrusion 1410, have

In Figs. 8 and 9, the coupling protrusions having shapes different from those of Fig. 7 are shown. 8, the coupling protrusion 2410 includes a rod-shaped coupling body 2411 having a blunt hemispherical end portion, a receiver 2412 for partially accommodating the rod-like coupling body 2411, and a coupling body 2411 And an elastic spring 2413 disposed inside the receptor 2412 so as to elastically support the guide bush 200. 9, the coupling protrusion 3410 has a binding body 3411 having a ball shape, a receptor 3412, and an elastic spring 3413. [

The coupling protrusions 2410 and 3410 shown in Figs. 8 and 9 may be disposed inside the inner bushing and supported by the elastic body toward the guide bush.

As described above, the binding between the inner bush and the guide bush can be realized by using the binding member so as to be firm and easy to attach and detach. However, it is also possible to provide a binding groove corresponding to the binding body on the outer circumferential surface of the guide bush, The binding force between the guide bushes can be improved.

Fig. 10 shows a fixing pin guide groove to which the binding groove and the coupling protrusion guide groove and the fixing pin are coupled, and Fig. 11 is a perspective view of the guide bush. 12 is a front view of the inner bush with the coupling protrusions and the fixing pins disposed thereon.

10 to 12, a plurality of coupling grooves 210 and a plurality of fixing pin guide grooves 230 are provided on the outer circumferential surface of the guide bush 200 in correspondence with the number of coupling protrusions and fixing pins provided in the inner bushing .

The binding groove 210 is provided to receive the number of binding projections and the end of the binding projections in the rotation direction of the outer roller. The coupling protrusion guide groove 220 is provided separately from the coupling groove 210. The coupling groove 210 is formed in a direction perpendicular to the direction in which the integral roller assembly is engaged at the end of the coupling protrusion guide groove 220 Are provided adjacently.

The coupling protrusion is elastically coupled to the coupling groove 210 by receiving the guidance of the coupling protrusion guide groove 220. [ However, the fixing pin 430 always remains in a state protruding from the inner peripheral surface of the inner bush. Therefore, it is possible to complement the coupling force of the coupling protrusion for coupling the integral roller assembly to the guide bushing and the coupling protrusion guide groove through the fixing pin 430, and in particular, to prevent the integral roller assembly from deviating in the axial direction of the coupling shaft can do.

In FIG. 10, the coupling protrusion guide groove 220 is not connected to the coupling groove 210. The coupling protrusion is moved to the end of the coupling protrusion along the forward direction of the coupling protrusion guide groove 220 along the axial direction of the coupling shaft and is then rotated in a direction perpendicular to the direction in which the coupling protrusion is coupled to the coupling shaft. And can be bound to the binding groove 210 spaced apart from the end of the forward section of the guide groove 220 by a predetermined distance.

At this time, the insertion hole 312 shown in Fig. 4 can be used to rotate the integral roller assembly. For example, a Y-shaped rod having a protrusion insertable into at least two insertion holes may be inserted, and the rod may be rotated to correctly insert the coupling protrusion into the coupling groove. The coupling protrusion of the coupling member inserted into the coupling groove 210 can not be easily detached from the coupling groove.

On the other hand, when the binding projections elastically arranged in the binding projecting portion 314 described above with reference to Fig. 4 are located in the binding grooves or the coupling projecting guide grooves, part of the binding projections can be exposed from the coupling projecting portion 314 When the fastening protrusion is brought into close contact with the outer peripheral surface of the guide bush, it can be inserted into the fastening protrusion receiving portion 314 in a completely inserted state.

However, the fixing pin 430 may be inelastically disposed in the coupling protrusion receiving portion 314 so that the fixing pin 430 can always be protruded from the inner peripheral surface of the inner bush. 10, the fixing pins 430 may be inserted into two of the fastening protrusion receiving portions 314 of the inner bushing at intervals of 180 degrees, And the number may be changed and may be disposed inside the accommodating portion provided in the inner bush separately from the coupling protrusion accommodating portion 314.

The fixing pin guide groove 230 includes the forward section 232 parallel to the linear direction and the straight section 232 parallel to the linear direction, And a rotation direction section 234 in a direction perpendicular to the direction. The forward direction section of the fixing pin guide groove 230 may correspond to the moving direction and the distance of the coupling protrusion along the forward direction of the coupling protrusion guide groove 220, And may correspond to the moving direction and the distance of the binding protrusion moving from the end of the forward section of the groove 330 to the binding groove.

Although the present invention has been described with reference to the preferred embodiments thereof, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the following claims. It can be understood that

20: connecting shaft 40: chain
100: Bucket chain guide roller 210: Coupling groove
300: integral roller assembly 310: inner bushing
312: insertion hole 314: coupling-
320: outer roller 330: bearing part
340: sealing member 350: cover member
400: binding member 410: binding member
420: elastic body

Claims (9)

A bucket chain guide roller for a continuous unloading machine, which is installed on a connecting shaft of a chain to which a bucket of a continuous unloading machine is coupled and guides the chain,
A guide bush into which the connection shaft is inserted;
Wherein the inner bushing has an inner bush into which the guide bush is inserted, an outer roller into which the inner bush is inserted, and a bearing portion interposed between the inner bush and the outer roller, The outer roller, and the bearing portion are collectively detached from the guide bush; And
A coupling bush provided on one side of the guide bush and the inner bushing for coupling the inner bush to the guide bush, a coupling protrusion provided on the other side and coupled to the coupling groove, and a coupling protrusion provided on the same side as the coupling bush And a coupling protrusion guide groove for guiding the coupling protrusion to the coupling groove, wherein the coupling protrusion guide groove and the coupling groove are provided on different straight lines along the direction in which the integral roller assembly is inserted into the coupling shaft ;
Wherein the coupling bush is provided with the coupling groove and the coupling bushing guide groove on the outer circumferential surface of the guide bush and protruding from the inner circumferential surface of the inner bushing which is in close contact with the outer circumferential face of the guide bushing, Wherein a coupling protrusion accommodating portion which is opened toward the outer circumferential surface of the guide bush is formed inside the inner bush, the coupling protrusion is formed in the coupling protrusion accommodating portion in the coupling protrusion accommodating portion Wherein the inner bushing includes an elastic body elastically supporting the inner bushing, and elastically binds the inner bushing to the guide bushing. delete The method according to claim 1,
Wherein the coupling protrusion has a rod shape or a ball shape. The method according to claim 1,
Wherein the coupling protrusion includes a coupling body, a receiver for partially receiving the coupling body, and an elastic spring disposed inside the receiver to elastically support the coupling body toward the coupling groove. Bucket chain guide roller. The method according to claim 1,
A fixing pin held in a state protruding from an inner circumferential surface of the inner bushing and provided on an outer circumferential surface of the guide bushing so that the coupling protrusion equally corresponds to a direction and a distance of guiding to the coupling groove along the coupling protrusion guide groove, Further comprising a guide pin guide groove for guiding the fixing pin. 6. The method of claim 5,
The fixing pin guide groove may include a forward section formed in a direction in which the integral roller assembly is coupled to the connection shaft and a forward section formed in a direction perpendicular to a direction in which the integral roller assembly is coupled to the connection shaft from an end of the forward section Wherein the integral roller assembly is prevented from being displaced in an axial direction of the connection shaft, including a rotation direction section in which the integrated roller assembly is formed. The method according to claim 1,
Wherein the coupling groove is provided separately from the coupling projection guide groove,
Wherein the coupling protrusion guide groove includes a forward section formed in a direction in which the integral roller assembly is coupled to the coupling shaft, and the binding groove is formed in a direction perpendicular to a direction in which the integral roller assembly is engaged at the end of the forward section Wherein the bucket chain guide rollers are provided adjacent to each other. The method according to claim 1,
Wherein the bearing portion comprises a ball bearing or a roller bearing. The method according to claim 1,
Wherein the inner bush is formed to support one side of the bearing portion and a cover member covering the inner bush and the outer roller is disposed on the other side of the bearing portion and the cover member is fastened to the outer roller Characterized in that the bucket chain guide rollers for continuous cargo handling.

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