Gear coupling ring, gear coupling, conveying equipment and conveying method

Abstract

To provide a ring for a gear coupling, a gear coupling, a transportation facility, and a transportation method using the transportation facility that enable easy wear management of the gear coupling and also easy emergency power transmission when wear occurs with the gear coupling.SOLUTION: A ring 1 for a gear coupling is provided on a gear coupling 2 having an inner cylindrical portion 21 in which a cylinder main body portion 21B and an engaging portion 21A are formed and an outer cylindrical portion 22 which encloses the engaging portion 21A and in which an engaged portion 22A engageable with the engaging portion 21A is formed, the gear coupling 2 connecting two rotating members disposed in a cylinder axis direction and being rotatable in a cylinder circumferential direction. The ring 1 for a gear coupling includes: an inner ring 11 which is provided on an outer periphery of the cylinder main body portion 21B; and an outer ring 12 which is provided on an end portion in a cylinder axial direction of the outer cylindrical portion 22 and encloses the inner ring 11.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a gear coupling ring, a gear coupling having the gear coupling ring, a conveying facility having the gear coupling ring, and a conveying method using the conveying facility. [Background technology]

[0002] The transport rolls in the transport equipment can be rotated by the power of a drive device via a gear coupling. Conventionally, there were two methods for checking the wear of the gear teeth formed in a gear coupling: (1) disassembling the gear coupling, cleaning it, and directly measuring the tooth thickness, and (2) placing a dial gauge on the gear coupling and measuring the gear gap (backlash). However, the above method (1) requires the gear coupling to be disassembled, and the above method (2) requires the skill of the person performing the measurement, and either method requires a great deal of time and cost.

[0003] In response to this problem, for example, a method has been proposed in Patent Document 1. However, this method requires the operation of sliding the coupling case when inspecting the wear of the gear teeth provided inside the gear coupling. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-170402 Summary of the Invention [Problem to be solved by the invention]

[0005] As described above, there has been a demand for a technique for managing the wear of the gear teeth of conventional gear couplings that can be more easily performed. Furthermore, when wear occurs in the gear teeth of the gear coupling, it is also required to be able to transmit power temporarily for a short period of time immediately after the wear occurs (hereinafter referred to as "emergency power transmission"). The present invention has been made in consideration of the above problems, and aims to provide a gear coupling ring that allows for easy wear management of the gear coupling and easy emergency power transmission when wear occurs in the gear coupling, a gear coupling having the gear coupling ring, conveying equipment having the gear coupling ring, and a conveying method using the conveying equipment. [Means for solving the problem]

[0006] [1] A gear coupling ring provided in a gear coupling that has an inner cylindrical portion in which a cylindrical main body portion and a meshing portion are formed, and an outer cylindrical portion that contains the meshing portion and has a meshed portion that can mesh with the meshing portion, connects two rotating members arranged in the cylindrical axis direction, and is rotatable in the cylindrical circumferential direction, an inner ring provided on the outer periphery of the cylindrical main body; an outer ring provided at an end of the outer cylindrical portion in an axial direction and containing the inner ring; A ring for a gear coupling comprising: [2] The gear coupling ring according to [1], wherein when the rotational speeds in the cylindrical circumferential direction are different between the inner cylindrical portion and the outer cylindrical portion, the inner ring can rotate in the cylindrical circumferential direction in conjunction with the rotation of the outer ring in the cylindrical circumferential direction. [3] The inner ring has a convex portion formed on an outer surface, the outer ring has a recess formed on an inner surface thereof, The gear coupling ring according to [2], wherein the recessed portion includes the protruding portion and is capable of abutting against the protruding portion. [4] The inner ring has a recess formed on its outer surface, the outer ring has a convex portion formed on an inner surface thereof, The gear coupling ring according to [2], wherein the recessed portion includes the protruding portion and is capable of abutting against the protruding portion. [5] The gear coupling ring according to any one of [1] to [4], an inner cylindrical portion having a cylindrical main body portion and a meshing portion formed therein; an outer tubular portion that includes the meshing portion and has a meshed portion that can mesh with the meshing portion; and A gear coupling that connects two rotating members arranged in the axial direction of the cylinder and is rotatable in the circumferential direction of the cylinder. [6] The gear coupling according to [5] above; a drive unit having a first rotating member of the two rotating members; a conveying roll having a second rotating member of the two rotating members, the conveying roll being rotatable in the cylinder circumferential direction in association with rotation of the first rotating member in the cylinder circumferential direction; A conveying facility comprising: [7] A conveying method using the conveying equipment according to [6] above, wherein a steel sheet is conveyed by conveying rolls. [Effects of the Invention]

[0007] According to the present invention, wear management of the gear coupling can be easily performed, and further, when wear occurs in the gear coupling, emergency power transmission can be easily performed. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram for explaining the conveyance facility of the present invention. [Figure 2] FIG. 2(a) is a diagram for explaining a gear coupling of the related art that does not have a gear coupling ring, and FIG. 2(b) is a diagram for explaining a gear coupling that has a gear coupling ring of the present invention. [Figure 3] FIG. 3 is an exploded perspective view of the gear coupling and the gear coupling ring of the present invention. [Figure 4] FIG. 4 is a diagram for explaining the configuration and function of the gear coupling ring of the present invention. [Figure 5]FIG. 5 is a diagram for explaining the configuration and function of the gear coupling ring of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0010] <Transportation equipment 10> FIG. 1 is a diagram for explaining the conveyance facility of the present invention. The conveying equipment 10 of the present invention is equipment for conveying steel plates, etc. As shown in Fig. 1, the conveying equipment 10 has a gear coupling 2, and as will be described later, the gear coupling 2 has a gear coupling ring 1. The conveying equipment 10 has a driving device 4 having a rotating member (first rotating member). The conveying equipment 10 also has a conveying roll 5, and the conveying roll 5 has a rotating member (second rotating member, intermediate shaft 3) and is rotatable in the cylindrical circumferential direction in conjunction with the rotation of the first rotating member in the cylindrical circumferential direction.

[0011] The transport equipment 10 of the present invention may be a transport equipment for rough rolling of thick plates, in which the transport rolls 5 are, for example, single rolls at the front of a rolling mill. The transport rolls 5 may also be rollers or the like provided on a transport table for transporting steel plates to various facilities.

[0012] In the conveying equipment 10 of the present invention, the rotation of a first rotating member by the power of a drive device 4 having a motor or the like rotates a second rotating member (intermediate shaft 3) of a conveying roll 5 connected to the gear coupling 2 via a gear coupling 2 connected to the first rotating member. This causes the conveying roll 5 to rotate, enabling the steel sheet to be conveyed. In the present invention, since the gear coupling 2 has the gear coupling ring 1, it is possible to easily manage wear of the gear coupling 2, and further, when wear occurs in the gear coupling 2, it is possible to easily perform emergency power transmission.

[0013] Here, a gear coupling 2 provided with a gear coupling ring 1 will be described with reference to Fig. 2. Fig. 2(a) is a diagram for explaining a gear coupling 20 of the related art that does not have a gear coupling ring, and Fig. 2(b) is a diagram for explaining the gear coupling 2 that has the gear coupling ring 1 of the present invention.

[0014] As shown in FIG. 2(a), a gear coupling 20 of the related art has an inner cylindrical portion 21 in which a cylindrical main body portion and a meshing portion are formed, and an outer cylindrical portion 22 that contains the meshing portion and in which a meshed portion that can mesh with the meshing portion is formed. The inner cylinder 21 is connected to a rotating member (intermediate shaft 3) of the transport roll 5, and the outer cylinder 22 is connected to a rotating member of the drive unit 4 (not shown in FIG. 2; see FIG. 1 again). The power of the drive unit 4 rotates the rotating member of the drive unit 4, and since the inner cylinder 21 and outer cylinder 22 of the gear coupling 20 are engaged with each other, the rotating member of the transport roll 5 also rotates. This allows the transport roll 5 equipped with the rotating member (intermediate shaft 3) to rotate as well.

[0015] On the other hand, the gear coupling 2 of the present invention shown in FIG. 2(b) is characterized in that it not only has an inner cylindrical portion 21 and an outer cylindrical portion 22 but also has a gear coupling ring 1. The gear coupling 2 having the gear coupling ring 1 not only enables the rotation of the conveying roll 5 by the power of the drive device 4, as described above in the gear coupling 20, but also enables emergency power transmission of the gear coupling 2. In addition, wear management of the gear coupling 2 can be easily performed. If the teeth of the meshing portion and / or meshed portion (internal gear) of the gear coupling 2 wear and become unable to transmit the power of the drive unit 4, the steel plate cannot be transported by the transport rolls 5. As a result, the steel plate cannot proceed to the next process, the production line must be stopped, and the steel plate cannot be made into a product. However, because the gear coupling 2 has the gear coupling ring 1, it is possible to transmit the power of the drive unit 4 as an emergency measure, and the steel plate can be made into a product without stopping the production line.

[0016] <Gear coupling 2 and gear coupling ring 1> Next, the configurations of the gear coupling 2 and the gear coupling ring 1 of the present invention will be described. As described above, the gear coupling 2 of the present invention is connected to each of the first rotating member and the second rotating member (intermediate shaft 3), and enables the second rotating member to rotate in conjunction with the rotation of the first rotating member. The gear coupling 2 of the present invention will be described taking as an example a case where it is used in a conveying facility that enables rotation of the conveying roll 5 by the power of the driving device 4, but it may be used in any device that is operated by using the power of the driving device 4.

[0017] FIG. 3 is an exploded perspective view of the gear coupling 2 and the gear coupling ring 1 of the present invention. The gear coupling 2 of the present invention comprises a gear coupling ring 1 having an inner ring 11 and an outer ring 12, an inner cylindrical portion 21 having an engaging portion 21A and a cylindrical main body portion 21B formed therein, and an outer cylindrical portion 22 having an engaged portion 22A that contains the engaging portion 21A and can engage with the engaging portion 21A, and connects two rotating members (a first rotating member and a second rotating member) arranged in the cylindrical axis direction (the positive direction of the X-axis and the negative direction of the X-axis) and is rotatable in the cylindrical circumferential direction.

[0018] At least a portion of the tube main body 21B of the inner tube 21 is not enclosed within the outer tube 22. As will be described later, an inner ring 11 of the gear coupling ring 1 is provided on the outer periphery of the portion of the tube main body 21B that is not enclosed within the outer tube 22. In addition, the tube main body 21B has a configuration that allows it to be connected to a rotating member (intermediate shaft 3, second rotating member) provided on the transport roll 5. Although not particularly limited, it is preferable that the tube main body 21B has a cylindrical shape.

[0019] The meshing portion 21A of the inner tube portion 21 is formed, for example, at the end of the tube axial direction of the tube main body portion 21B, and as long as it can mesh with the meshed portion 22A, its shape, etc. is not particularly limited, and it may be a normally known gear component having multiple teeth formed in the tube circumferential direction.

[0020] The meshed portion 22A of the outer tube portion 22 is formed, for example, inside the outer tube portion at the end in the axial direction of the tube, and as long as it can mesh with the meshing portion 21A, its shape, etc. is not particularly limited, and it may be a normally known gear component having multiple teeth formed in the circumferential direction of the tube.

[0021] Furthermore, the outer cylinder portion 22 may have a connecting portion 22B, and the connecting portion 22B can be connected to a rotating member (first rotating member) provided in the driving device 4.

[0022] The gear coupling ring 1 of the present invention is provided on the above-mentioned gear coupling 2, and is an add-on ring having an inner ring 11 provided on the outer periphery of the cylindrical main body portion 21B, and an outer ring 12 provided at the end of the cylindrical axis direction (X-axis direction in the figure) of the outer cylindrical portion 22 and containing the inner ring 11.

[0023] Furthermore, in the gear coupling ring 1 of the present invention, when the rotational speeds in the cylindrical direction are different between the inner cylindrical portion 21 and the outer cylindrical portion 22 of the gear coupling 2, it is preferable that the inner ring 11 can rotate in the cylindrical direction in conjunction with the rotation of the outer ring 12 in the cylindrical direction. Specifically, when wear, abrasion, etc. (hereinafter also simply referred to as wear, etc.) occurs in the gear coupling 2 and the rotation speed in the cylindrical direction differs between the inner cylindrical portion 21 and the outer cylindrical portion 22 of the gear coupling 2, it is preferable for the inner ring 11 and the outer ring 12 to come into contact with each other. This contact between the inner ring 11 and the outer ring 12 enables the inner ring 11 to rotate in the cylindrical direction in conjunction with the rotation of the outer ring 12 in the cylindrical direction, and wear, etc. of the gear coupling 2 can be grasped from the contact between the inner ring 11 and the outer ring 12, making wear management of the gear coupling 2 extremely easy. Furthermore, when wear or the like occurs in the gear coupling 2, the difference in rotation speed between the inner cylindrical portion 21 and the outer cylindrical portion 22 causes a change in the size of the gap in a specific area between the inner ring 11 and the outer ring 12. The change in the size of the gap in this specific area may be grasped, and wear management of the gear coupling 2 may be performed based on the amount of change.

[0024] Furthermore, even if wear or the like occurs in the gear coupling 2 and an abnormality occurs in the meshing between the inner cylindrical portion 21 and the outer cylindrical portion 22, the inner ring 11 and the outer ring 12 will be in contact with each other, so that the inner cylindrical portion 21 and the outer cylindrical portion 22 of the gear coupling 2 can continue to rotate at the same rotational speed. Therefore, even if wear or the like occurs in the gear coupling 2, the inner cylindrical portion 21 and the outer cylindrical portion 22 can be rotated at the same rotational speed as a temporary measure, and the conveying roll 5 can be rotated by the power of the drive device 4, just as in the case where wear or the like does not occur.

[0025] (inner ring 11 and outer ring 12) The inner ring 11 is provided on the outer periphery of the cylinder main body 21B of the inner cylinder portion 21 of the gear coupling 2. The inner ring 11 is preferably fixed to the inner cylinder portion 21B by joining such as welding. The cylinder main body 21B is preferably cylindrical, and the cylinder main body 21B is fitted into a hollow portion of the inner ring 11 that is circular when viewed in the cylinder axis direction. The outer ring 12 is provided at the end of the outer cylindrical portion 22 in the cylindrical axis direction (negative direction of the X-axis) and encloses the inner ring 11. The outer ring 12 is preferably fixed to the end (bottom) of the outer cylindrical portion 22 in the cylindrical axis direction by joining such as welding.

[0026] FIG. 4 is a diagram for explaining the configuration and function of the gear coupling ring 1 of the present invention, and shows an example of the gear coupling ring 1 when viewed in the cylinder axis direction (X-axis direction).

[0027] There are no particular limitations on the specific shapes of inner ring 11 and outer ring 12, but inner ring 11 may have a convex portion formed on its outer surface. Specifically, inner ring 11 may have one or more convex portions 11A formed in the circumferential direction on the outer surface of the ring-shaped main body. In this case, outer ring 12 may have a recess formed on its inner surface. Specifically, outer ring 12 may have one or more recesses 12B formed in the circumferential direction on the inner surface of the ring-shaped main body. It is preferable that the recess 12B includes the protrusion 11A therein and be able to abut against the protrusion 11A. In the example shown in Figure 4, the outer ring 12 has six recesses 12B and the inner ring 11 has six protrusions 11A, but the number is not particularly limited as long as the number of protrusions 11A and recesses 12B is the same.

[0028] Furthermore, inner ring 11 may have a recess formed on its outer surface. Specifically, inner ring 11 may have one or more recesses 11B formed in the circumferential direction on the outer surface of the ring-shaped main body. In this case, outer ring 12 may have a protrusion formed on its inner surface. Specifically, outer ring 12 may have one or more protrusions 12A formed in the circumferential direction on the inner surface of the ring-shaped main body. It is preferable that the recess 11B includes the protrusion 12A therein and be able to come into contact with the protrusion 12A. In the example shown in Figure 4, the inner ring 11 has six recesses 11B and the outer ring 12 has six protrusions 12A, but the number is not particularly limited as long as the number of protrusions 12A and recesses 11B is the same.

[0029] In order to further improve the accuracy of emergency power transmission such as torque transmission type, and to further improve the accuracy of wear control, it is preferable that the convex portions 11A and / or concave portions 11B constituting the inner ring 11 are provided at equal intervals in the circumferential direction. Similarly, in order to further improve the accuracy of emergency power transmission and the accuracy of wear control, it is preferable that the convex portions 12A and / or concave portions 12B constituting the outer ring 12 are provided at equal intervals in the circumferential direction.

[0030] Furthermore, when the gears of the gear coupling 2 are rotating normally without any abnormality, that is, when the rotation speed of the inner cylindrical portion 21 and the rotation speed of the outer cylindrical portion 22 are the same, it is preferable that the convex portion 11A of the inner ring 11 and the concave portion 12B of the outer ring 12 are not in contact with each other. In other words, it is preferable that a gap is formed at a specific position between the convex portion 11A and the concave portion 12B. When the rotational speed of the inner cylindrical portion 21 is different from the rotational speed of the outer cylindrical portion 22, it is preferable that the convex portion 11A of the inner ring 11 and the concave portion 12B of the outer ring 12 abut against each other, and that the inner ring 11 can rotate in the circumferential direction of the cylinder as the outer ring 12 rotates in the circumferential direction of the cylinder. Furthermore, when the rotation speed of the inner cylindrical portion 21 differs from the rotation speed of the outer cylindrical portion 22, it is preferable to sense the size of the gap and determine the wear of the gear coupling 2 based on the change in the size of the gap.

[0031] Furthermore, when the gears of the gear coupling 2 are rotating normally without any abnormality, that is, when the rotation speed of the inner cylindrical portion 21 and the rotation speed of the outer cylindrical portion 22 are the same, it is preferable that the recessed portion 11B of the inner ring 11 is not in contact with the protruding portion 12A of the outer ring 12. In other words, it is preferable that a gap is formed at a specific position between the protruding portion 12A and the recessed portion 11B. When the rotational speed of the inner cylindrical portion 21 is different from the rotational speed of the outer cylindrical portion 22, it is preferable that the recess 11B of the inner ring 11 and the protrusion 12A of the outer ring 12 abut against each other, and that the inner ring 11 can rotate in the circumferential direction of the cylinder as the outer ring 12 rotates in the circumferential direction of the cylinder. Furthermore, when the rotation speed of the inner cylindrical portion 21 differs from the rotation speed of the outer cylindrical portion 22, it is preferable to sense the size of the gap and determine the wear of the gear coupling 2 based on the change in the size of the gap.

[0032] Next, a case where an abnormality occurs in the gear coupling 2 of the present invention will be described with reference to Fig. 5. Fig. 5 is a diagram for explaining the configuration and function of the gear coupling ring 1 of the present invention, and in particular, a diagram for explaining a case where an abnormality (internal gear abnormality) occurs in the gear coupling 2 of the present invention.

[0033] Here, occurrence of an abnormality in the gear coupling 2 means that the inner cylindrical portion 21 and the outer cylindrical portion 22 no longer rotate at the same rotational speed due to wear or the like of the meshing portion 21A of the inner cylindrical portion 21 and / or the meshed portion 22A of the outer cylindrical portion 22 of the gear coupling 2. This abnormality also includes a case where the degree of wear of the meshing portion 21A and / or the meshed portion 22A is so great that the inner cylindrical portion 21 of the gear coupling 2 does not rotate even though the outer cylindrical portion 22 rotates.

[0034] When such an abnormality occurs in the gear coupling 2, as shown in FIG. 5, the inner cylindrical portion 21 and the outer cylindrical portion 22 do not rotate at the same rotational speed, so the convex portion 11A of the inner ring 11 and the concave portion 12B of the outer ring 12 of the gear coupling ring 1 come into contact with each other (see symbol α in the figure). At this time, the recessed portion 11B of the inner ring 11 and the protruding portion 12A of the outer ring 12 of the gear coupling ring 1 may come into contact with each other, as shown in FIG. This abutment between the convex portion 11A and the concave portion 12B and / or the concave portion 11B and the convex portion 12A makes emergency power transmission possible, and the rotational speeds of the inner cylindrical portion 21 and the outer cylindrical portion 22 in the gear coupling 2 can be made the same again.

[0035] Furthermore, by sensing the contact between the convex portion 11A and the concave portion 12B and / or the contact between the concave portion 11B and the convex portion 12A, an inspector of the conveying equipment 10 can easily grasp the wear of the meshing portion 21A of the inner cylindrical portion 21 and / or the meshed portion 22A of the outer cylindrical portion 22 of the gear coupling 2. In addition, the gear coupling ring 1 may be provided with a sensor or the like to enable the above-mentioned detection, and the conveying equipment 10 may be provided with an information processing device to process information from the above-mentioned sensor.

[0036] Furthermore, when wear or the like occurs in the gear coupling 2, the difference in rotation speed between the inner cylindrical portion 21 and the outer cylindrical portion 22 causes a change in the size of the gap in a specific area between the inner ring 11 and the outer ring 12. The information processing device may grasp the change in the size of the gap in this specific area and perform wear management of the gear coupling 2 based on the amount of change.

[0037] As described above, in the present invention, a gear coupling ring is provided in a gear coupling of a conveying facility. Therefore, when wear or the like occurs in the gear coupling, wear management of the gear coupling can be easily performed by grasping the abutment between the inner ring and the outer ring of the gear coupling ring and changes in the size of the gap at a specific position between the inner ring and the outer ring. This eliminates the need to disassemble the gear coupling to inspect wear management. Furthermore, wear management of the gear coupling can be easily performed regardless of the skill level of the inspector of the conveying facility.

[0038] Furthermore, when wear or the like occurs in the gear coupling, even if the meshing portion and the meshed portion do not mesh, the inner ring and outer ring of the gear coupling ring come into contact, i.e., mesh, thereby enabling emergency power transmission, thereby preventing the conveying equipment from stopping due to idling between the meshing portion and the meshed portion of the gear coupling.

[0039] The present invention also provides a conveying method in which a steel plate is conveyed by conveying rolls 5 using conveying equipment 10 equipped with a gear coupling 2 having a gear coupling ring 1 as described above. [Explanation of symbols]

[0040] 1 Gear coupling ring 11 Inner Circle 11A Convex part 11B Recess 12 outer ring 12A Convex part 12B Recess 2 Gear Coupling 21 Inner cylinder 21A Meshing part 21B Cylinder body 22 outer cylinder 22A Engaged part 22B Connecting part 20 Gear Coupling (Related Technology) 3 Intermediate shaft (rotating member) 4. Drive unit 5. Transport roll 10. Conveying equipment α: Contact point between the convex and concave portions

Claims

1. A gear coupling ring is provided in a gear coupling that has an inner cylindrical portion in which a cylindrical main body portion and a meshing portion are formed, and an outer cylindrical portion that contains the meshing portion and has a meshed portion that can mesh with the meshing portion, the gear coupling ring connects two rotating members arranged in a cylindrical axis direction, and is rotatable in a cylindrical circumferential direction, an inner ring provided on the outer periphery of the cylindrical main body; an outer ring provided at an end of the outer cylindrical portion in an axial direction and containing the inner ring; Equipped with A gear coupling ring, wherein when the rotational speeds in the cylindrical direction are different between the inner cylindrical portion and the outer cylindrical portion, the inner ring can rotate in the cylindrical direction in conjunction with the rotation of the outer ring in the cylindrical direction.

2. the inner ring has a convex portion formed on an outer surface, the outer ring has a recess formed on an inner surface thereof, The gear coupling ring according to claim 1 , wherein the recessed portion includes the protruding portion therein and is capable of abutting against the protruding portion.

3. the inner ring has a recess formed in an outer surface, the outer ring has a convex portion formed on an inner surface thereof, The gear coupling ring according to claim 1 , wherein the recessed portion includes the protruding portion therein and is capable of abutting against the protruding portion.

4. A gear coupling ring according to any one of claims 1 to 3, an inner cylindrical portion having a cylindrical main body portion and a meshing portion formed therein; an outer tubular portion that includes the meshing portion and has a meshed portion that can mesh with the meshing portion; and A gear coupling that connects two rotating members arranged in the axial direction of the cylinder and is rotatable in the circumferential direction of the cylinder.

5. The gear coupling according to claim 4; a drive unit having a first rotating member of the two rotating members; a transport roll having a second rotating member of the two rotating members, the transport roll being rotatable in the cylinder circumferential direction in association with rotation of the first rotating member in the cylinder circumferential direction; A conveying facility comprising:

6. A conveying method, comprising conveying a steel sheet by conveying rolls using the conveying equipment according to claim 5.

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