A wire rope winding machine

Abstract

The present invention relates to the field of wire rope equipment, specifically a wire rope winding machine, including a conveying mechanism, a bending mechanism connected to the conveying mechanism, and a winding roller arranged at the discharging end of the bending mechanism; the bending mechanism is provided with: a guiding assembly arranged at the feeding end of the bending mechanism, used to introduce the wire rope into the machine compartment of the bending mechanism; an internal pressure assembly arranged on the inner side of the bending direction of the wire rope, used to squeeze the wire rope; an external pressure assembly arranged on the outer side of the bending direction of the wire rope, and forming a gap for passing the wire rope between the internal pressure assembly, and a limiting assembly composed of a plurality of limiting supports, and an arc-shaped arrangement trend is formed between the limiting supports. The overall automated operation of the present invention can effectively overcome the torsional force existing in the wire rope, avoid direct contact between the construction personnel and the wire rope, and thus effectively ensure the operation safety of the personnel.

Description

Technical Field

[0001] The invention relates to the field of steel wire rope equipment, in particular to a steel wire rope winding machine. Background Art

[0002] During the construction process, in order to make the construction more labor-saving and simple, wire ropes are often used for auxiliary construction. However, there is no dedicated wire rope winding device on the market. When winding the wire rope or repairing and tidying the wire rope, according to the actual situation, equipment such as pay-off racks, traction machines, and wire tail cars are used for winding and unwinding. However, these methods have many disadvantages. The entire operation is complicated and requires higher equipment costs, but the processing efficiency is low.

[0003] In the prior art, whether it is using equipment such as a pay-off rack, a wire pulling machine, a wire tail car or traditional manual operation methods, it basically requires construction workers to have direct contact with the wire rope. When winding the wire rope, huge torque will inevitably be generated, especially when the first formed wire rope is wound, the torque will be very large, which is not only very difficult to bend, but also brings certain safety hazards to the construction workers. Summary of the invention

[0004] The object of the present invention is to provide a wire rope winding machine to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A wire rope winding machine comprises a conveying component, a bending component connected to the conveying component, and a winding roller arranged at a discharge end of the bending component;

[0007] The bending machine is provided with: a conveying assembly installed at the starting end of the conveying machine and used to input the steel wire rope;

[0008] The bearing assembly is installed on the conveying member and is used to bear the steel wire rope, one end of which is connected to the conveying member and the other end is connected to the bending member;

[0009] The bending machine is provided with: a guide assembly, which is arranged at the feeding end of the bending machine and is used to introduce the steel wire rope into the machine compartment of the bending machine;

[0010] The internal pressure component is arranged on the inner side of the bending direction of the steel wire rope to squeeze the steel wire rope;

[0011] The external pressure component is arranged on the outside of the bending direction of the wire rope, and forms a gap for passing the wire rope between the internal pressure component. The limiting component is composed of a plurality of limiting supports, and an arc-shaped arrangement trend is formed between the limiting supports.

[0012] As a further solution of the present invention: a guide cavity is provided at the inlet position of the carriage of the bending machine, the guide assembly is provided in the guide cavity, and the guide assembly includes guide frames arranged symmetrically with each other;

[0013] As a further solution of the present invention: the guide frame includes a mounting base block installed on the inner wall of the guide cavity, a support frame arranged on the mounting base block, and an inner frame arranged on the support frame, and the inner frame is respectively installed with a positioning roller and a movable roller, and the roller shaft of the movable roller is connected to the power shaft through a bushing.

[0014] As a further solution of the present invention: the internal pressure assembly is composed of internal pressure rollers that mesh with each other, and the internal pressure rollers include a supporting shaft, a supporting roller column installed on the supporting shaft, and a plurality of internal pressure protrusions arranged on the supporting roller column, and the internal pressure protrusions between the internal pressure rollers mesh with each other.

[0015] As a further solution of the present invention: the limiting support includes a guide roller located at the discharge end of the guide cavity, and an external pressure roller group arranged in a curved trend, and the external pressure roller group is arranged along the guide roller to the discharge port position of the bending machine.

[0016] As a further solution of the present invention: each set of external pressure rollers is composed of a number of synchronously driven limiting rollers, the roller shafts of the limiting rollers are externally connected with synchronous wheels, and the synchronous wheels of each set of external pressure rollers are connected by synchronous belts.

[0017] The internal pressure protrusion comprises a curved substrate fixed on the roller surface of the supporting roller, a molded inner support ring arranged on the curved substrate, and a hard outer support ring wrapped around the outer periphery of the molded inner support ring.

[0018] As a further solution of the present invention: the inner cavity of the bending machine is also provided with a cooling component, the cooling component is arranged between the external pressure roller group, a coolant pipe is arranged on the cooling component, the coolant pipe is extended inwardly and a nozzle is installed, and the nozzle is located in the gap formed by the external pressure component and the internal pressure component.

[0019] As a further solution of the present invention: the conveying assembly is installed on the conveying surface of the conveying machine, and the conveying assembly includes a transmission frame on the conveying machine, and a plurality of conveying rollers arranged on the transmission frame. The roller shafts of the conveying rollers are synchronously driven by the crawler belts, and the roller surfaces of the conveying rollers have equidistantly arranged driving ribs.

[0020] As a further solution of the present invention: the bearing assembly includes a bearing box installed on the conveying mechanism, the bearing box has an inner cavity built therein, the bearing box is provided with a bearing table located in the same plane as the fixed point tangent of the conveying roller, the bearing table is connected to the inner cavity and is provided with a plurality of oil outlet holes.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention is designed to allow the steel wire rope to pass into the compartment of the bending machine. The first piece passes through the guide assembly, which preliminarily bends the steel wire rope and passes it from the guide assembly to between the internal pressure assembly and the external pressure assembly. There is a gap between the internal pressure assembly and the external pressure assembly, which is used to pass the steel wire rope out along the gap track. During the steel wire rope transportation process, the internal pressure assembly applies a force to bend and deform the steel wire rope, and the external pressure assembly presses the steel wire rope to make the steel wire rope contact with the internal pressure assembly, thereby effectively overcoming the huge torsional force of the steel wire rope itself, causing the steel wire rope to gradually deform into a bending trend, and then facilitating the winding and storage of the steel wire rope. The overall automated operation of the present invention can effectively overcome the torsional force of the steel wire rope, avoid direct contact between the construction personnel and the steel wire rope, and thus effectively ensure the safety of the personnel's work.

[0023] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings herein are incorporated into and constitute a part of the specification to illustrate embodiments consistent with the present application and are used together with the specification to explain the principles of the present application. At the same time, these drawings and text descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application for those skilled in the art by referring to specific embodiments.

[0025] Figure 1 A schematic diagram of the overall structure of a wire rope winding machine provided in an embodiment of the present invention.

[0026] Figure 2 A schematic structural diagram of a guide assembly provided in an embodiment of the present invention.

[0027] Figure 3 A schematic structural diagram of a guide frame provided in an embodiment of the present invention.

[0028] Figure 4 A schematic structural diagram of a bending mechanism provided in an embodiment of the present invention.

[0029] Figure 5 For the present invention Figure 4 Schematic diagram of the structure of area A in the middle.

[0030] Figure 6 A schematic structural diagram of a conveying assembly provided in an embodiment of the present invention.

[0031] Figure 7 A schematic structural diagram of a bearing assembly provided in an embodiment of the present invention.

[0032] In the figure: 11, conveying parts; 12, bending parts; 13, winding roller; 14, conveying assembly; 15, bearing assembly; 16, guiding assembly; 17, external pressure assembly; 18, internal pressure assembly; 19, limit support; 21, guiding cavity; 22, machine compartment inlet; 23, guiding frame; 24, mounting base block; 25, supporting frame; 26, internal frame; 27, movable roller column; 28, power shaft; 29, positioning roller column; 31, guide roller; 32, external pressure roller group; 3 3. Inner pressure roller; 34. Carriage discharge port; 41. Synchronous wheel; 42. Limiting roller; 43. Synchronous belt; 44. Support shaft; 45. Support roller; 46. Internal pressure protrusion; 47. Curved substrate; 48. Molded inner support ring; 49. Hard outer support ring; 51. Cooling component; 52. Coolant pipeline; 53. Nozzle; 61. Carrying box; 62. Inner cavity; 63. Carrying table; 64. Oil outlet; 71. Transmission frame; 72. Conveying roller; 73. Moving edge strip. DETAILED DESCRIPTION

[0033] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0034] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0036] In one embodiment;

[0037] See also Figure 1 , provides a wire rope winding machine, including a conveying member 11, a bending member 12 connected to the conveying member 11, and a winding roller 13 arranged at the discharge end of the bending member 12; the winding roller 13 is a storage component for the wire rope, which is used to wind and store the wire rope passing through the bending member 12.

[0038] The bending mechanism 12 is provided with: a conveying assembly 14, which is installed at the beginning of the conveying mechanism 11 and is used to input the steel wire rope;

[0039] The bearing assembly 15 is installed on the conveying member 11 and is used to bear the steel wire rope, one end of which is connected to the conveying member 14 and the other end of which is connected to the bending member 12;

[0040] The bending machine 12 is provided with: a guide assembly 16, which is provided at the feeding end of the bending machine 12 and is used to introduce the steel wire rope into the machine compartment of the bending machine 12;

[0041] The internal pressure assembly 18 is arranged on the inner side of the bending direction of the steel wire rope to squeeze the steel wire rope;

[0042] The external pressure component 17 is arranged outside the bending direction of the wire rope, and forms a gap for passing the wire rope between the external pressure component 17 and the internal pressure component 18. The external pressure component 17 is composed of a plurality of limit supports 19, and the limit supports 19 are arranged in an arc shape.

[0043] When the wire rope is coiled, it is mounted at the starting end of the conveying mechanism 11, namely, the conveying assembly 14. The conveying assembly 14 drives the wire rope to move so as to continuously convey the wire rope. The bearing assembly 15 is used to support the wire rope to prevent the wire rope from bending and deforming due to gravity.

[0044] The steel wire rope is inserted into the compartment of the bending machine 12, and the first piece passes through the guide assembly 16. The guide assembly 16 preliminarily bends the steel wire rope and passes it from the guide to between the internal pressure assembly 18 and the external pressure assembly 17. There is a gap between the internal pressure assembly 18 and the external pressure assembly 17, which is used to pass the steel wire rope along the gap trajectory; during the steel wire rope transportation process, the internal pressure assembly 18 exerts a force, so that the steel wire rope is bent and deformed, and the external pressure assembly 17 presses the steel wire rope so that the steel wire rope contacts the internal pressure assembly 18, and then effectively overcomes the huge torque of the steel wire rope itself, so that the steel wire rope gradually deforms into a bending trend, and then facilitates the winding and storage of the steel wire rope. The overall automated operation of the present invention can effectively overcome the torque of the steel wire rope, avoid direct contact between the construction personnel and the steel wire rope, and effectively ensure the safety of the personnel's work.

[0045] In one embodiment;

[0046] For the guide assembly 16, this embodiment designs the following technical structure:

[0047] See also Figure 2 and Figure 3 A guide cavity 21 is provided at the position of the inlet 22 of the bending machine 12, and the guide assembly 16 is provided in the guide cavity 21. The guide assembly 16 includes guide frames 23 which are arranged symmetrically with each other;

[0048] The guide frame 23 includes a mounting base block 24 mounted on the inner wall of the guide cavity 21, a support frame 25 arranged on the mounting base block 24, and an inner frame 26 arranged on the support frame. A positioning roller 29 and a movable roller 27 are respectively installed on the inner frame 26. The roller shaft of the movable roller 27 is connected to a power shaft 28 through a bushing, and the power shaft 28 is used to drive the movable roller 27 to rotate.

[0049] The guide assembly 16 is arranged at the feeding port 22 of the bending mechanism 12, and is used to turn the steel wire rope from a straight line to a curved line. When the present embodiment is in operation, the steel wire rope is passed through the middle of the guide frames 23 which are arranged symmetrically, that is, it is clamped between the positioning roller 29 and the movable roller 27. The movable roller 27 is adjustably mounted on the inner threading frame 26, so that the spacing between the positioning roller 29 and the movable roller 27 can be adjusted according to the outer diameter of the steel wire rope, that is, the positioning roller 29 and the movable roller 27 can be kept in contact with the outer surface of the steel wire rope.

[0050] The symmetric axes of the guide frames 23 on both sides are arranged obliquely relative to the conveying mechanism 11, and the steel wire rope is inclined when passing through the guide frames 23 on both sides. The steel wire rope is restricted by the positioning rollers 29 and the movable rollers 27. When the previous guide frame 23 is introduced into the next guide frame 23, the steel wire rope can initially form a bending operation trend; the rotation of the movable rollers 27 drives the steel wire rope forward;

[0051] The guide frames 23 on both sides are arranged symmetrically, and the rotatable movable rollers 27 are respectively located on the inner side and the outer side of the wire rope, so that both sides assist in promoting the transportation of the wire rope and exert force on the wire rope from both sides, thereby assisting the wire rope to change into a curved direction.

[0052] In one embodiment;

[0053] Regarding the internal pressure assembly 18 and the external pressure assembly 17, this embodiment designs the following implementation structure:

[0054] See also Figure 4 The internal pressure assembly 18 is composed of internal pressure rollers 33 that mesh with each other. The internal pressure rollers 33 include a supporting shaft 44, a supporting roller column 45 installed on the supporting shaft 44, and a plurality of internal pressure protrusions 46 arranged on the supporting roller column 45. The internal pressure protrusions 46 between the internal pressure rollers 33 mesh with each other.

[0055] The limiting support 19 includes a guide roller 31 located at the discharge end of the guide cavity 21 and an outer pressure roller group 32 arranged in a curve. The outer pressure roller group 32 is arranged along the guide roller 31 to the machine compartment discharge port 34 of the bending machine 12.

[0056] The specific implementation structure of the external pressure component 17 is a guide roller 31 and an external pressure roller group 32 arranged in a curved trend, which then forms a curved limiting component, so that the wire rope bends in a curved shape; the wire rope is located in the gap between the internal pressure component 18 and the external pressure component 17, and the internal pressure component 18 is composed of internal pressure rollers 33 that mesh with each other. The internal pressure rollers 33 squeeze the wire rope, forcing the wire rope to bend, and a plurality of internal pressure protrusions 46 are arranged on the surface of the support roller column 45, and each internal pressure protrusion 46 is an extrusion point during the rotation process; compared with surface extrusion, the extrusion force of point extrusion is greater, and the extrusion molding effect is more obvious; each internal pressure protrusion 46 rotates with the support roller column 45, so that multiple point extrusions are converted into line extrusion, thereby achieving the overall bending molding effect of the wire rope.

[0057] The present embodiment adopts mutually meshing inner pressure rollers 33, one of which is driven by an external power, and the other inner pressure roller 33 is driven due to the meshing, and the direction of the driven inner pressure roller 33 is in the same direction as the direction of the steel wire rope (i.e., clockwise in the figure), so the direction of the driven inner pressure roller 33 is in the opposite direction to the direction of the steel wire rope (i.e., counterclockwise in the figure), and the driven inner pressure roller 33 cooperates with the guide roller 31 to assist the steel wire rope to penetrate into the gap space formed by the internal pressure component 18 and the external pressure component 17, and the driven inner pressure roller 33 is in the opposite direction to the direction of the steel wire rope, thereby squeezing the steel wire rope that has been embedded in the gap space, and the contact is more obvious, so the squeezing effect is better.

[0058] In one case of this embodiment,

[0059] See also Figure 4 Each group of external pressure rollers 32 is composed of several synchronously driven limiting rollers 42, and the roller shaft of the limiting roller 42 is externally connected to a synchronous wheel 41, and the synchronous wheels 41 of each group of external pressure rollers 32 are connected by a synchronous belt 43. Multiple external pressure rollers 32 are used to form an outer limiting structure with a curved direction; as an example, Figure 1 A mechanism arrangement of a flat tube loading device is provided; two sets of external pressure roller groups 32 are provided, each set of external pressure roller groups 32 is composed of two limiting rollers 42, and the specific number thereof can be set according to actual needs.

[0060] In one case of this embodiment,

[0061] This embodiment is dedicated to overcoming the torsion of the wire rope, but it is necessary to avoid excessive squeezing of the wire rope by the internal pressure protrusion 46 to avoid causing notches on the wire rope. Therefore, the following implementation structure is also designed;

[0062] See also Figure 4 and Figure 5The internal pressure protrusion 46 includes a curved substrate 47 fixed on the roller surface of the supporting roller 45, a molded inner support ring 48 arranged on the curved substrate 47, and a hard outer support ring 49 wrapped around the outer periphery of the molded inner support ring 48.

[0063] In this embodiment, the molded inner support ring 48 is designed to be a material with a certain elasticity and low rigidity, while the hard outer support ring 49 is designed to be a material with a higher rigidity and hardness; the hard outer support ring 49 protects the molded inner support ring 48. On the one hand, the hard outer support ring 49 ensures that it has a certain supporting force for the steel wire rope and will not be worn by the steel wire rope; on the other hand, the steel wire rope itself squeezes the internal pressure protrusion 46, which will cause the molded inner support ring 48 to shrink and deform inward, thereby not causing the problem of excessive concave in a single point area of ​​the steel wire rope, ensuring a smooth transition of the steel wire rope from a straight line to a curve, and not causing the risk of notches.

[0064] In one embodiment;

[0065] See also Figure 4 The inner cavity of the bending machine 12 is also provided with a cooling component 51, and the cooling component 51 is arranged between the external pressure roller group 32. A coolant pipe 52 is arranged on the cooling component 51. The coolant pipe 52 extends inward and is installed with a nozzle 53. The nozzle 53 is located in the gap formed by the external pressure component 17 and the internal pressure component 18.

[0066] During the contact and extrusion process between the steel wire rope and the inner pressure roller 33 and the limiting roller 42, and during the process of the steel wire rope overcoming the torsional deformation, a large amount of heat energy will inevitably be generated, thereby causing the temperature of the steel wire rope to rise; therefore, in the present embodiment, the inner cavity of the bending mechanism 12 is also provided with a cooling component 51 to spray coolant to cool the steel wire.

[0067] In one embodiment;

[0068] See also Figure 6 The conveying assembly 14 is installed on the conveying surface of the conveying mechanism 11. The conveying assembly 14 includes a transmission frame 71 on the conveying mechanism 11 and a plurality of conveying rollers 72 arranged on the transmission frame 71. The roller shafts of the conveying rollers 72 are synchronously driven by the crawler belt. The roller surfaces of the conveying rollers 72 are evenly arranged with shimming ribs 73. In this embodiment, the conveying rollers 72 are used as transmission components. Through the synchronous movement of multiple conveying rollers 72, the shimming ribs 73 on the surface of the conveying rollers 72 push the steel wire rope to move, thereby conveying the steel wire rope,

[0069] In one embodiment;

[0070] See also Figure 7The bearing assembly 15 includes a bearing box 61 installed on the conveying mechanism 11, and the bearing box 61 has an inner cavity 62 built therein. The bearing box 61 is provided with a bearing table 63 located in the same plane as the fixed point tangent of the conveying roller 72. The bearing table 63 is connected to the inner cavity 62 and is provided with a plurality of oil outlet holes 64.

[0071] The bearing platform 63 is used to support the steel wire rope to prevent the steel wire rope from bending and deforming due to gravity. At the same time, when the steel wire rope passes through the inner cavity of the bending mechanism 12, there will inevitably be friction between the steel wire rope and the inner pressure roller 33 and the limiting roller 42. In order to reduce the impact of friction, the bearing platform 63 of this embodiment is arranged on the bearing box 61. The bearing box 61 has an inner cavity 62 built in. Lubricating oil is placed in the inner cavity 62. The lubricating oil overflows through the oil outlet 64. When the steel wire rope passes through the bearing platform 63, it is coated on the steel wire rope, thereby protecting the steel wire rope.

[0072] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0073] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A wire rope winding machine, comprising a conveying member, a bending member connected to the conveying member, and a winding roller arranged at the discharge end of the bending member; characterized in that: The bending mechanism is provided with: The conveying assembly is installed at the beginning of the conveying machine and is used to input the wire rope; The bearing assembly is installed on the conveying member and is used to bear the steel wire rope, one end of which is connected to the conveying member and the other end is connected to the bending member; The bending mechanism is provided with: A guide assembly, arranged at the feeding end of the bending machine, for introducing the steel wire rope into the machine compartment of the bending machine; The internal pressure component is arranged on the inner side of the bending direction of the steel wire rope to squeeze the steel wire rope; The external pressure component is arranged outside the bending direction of the steel wire rope, and forms a gap for passing the steel wire rope between the external pressure component and the internal pressure component. The limiting component is composed of a plurality of limiting supports, and the limiting supports form an arc-shaped arrangement trend; The internal pressure assembly is composed of internal pressure rollers meshing with each other, the internal pressure rollers include a supporting shaft, a supporting roller column mounted on the supporting shaft, and a plurality of internal pressure protrusions arranged on the supporting roller column, and the internal pressure protrusions between the internal pressure rollers mesh with each other; The position-limiting support comprises a guide roller located at the discharge end of the guide cavity, and an external pressure roller group arranged in a curve, wherein the external pressure roller group is arranged along the guide roller to the discharge port of the bending machine compartment; Each set of external pressure rollers is composed of several synchronously driven limiting rollers, the roller shafts of the limiting rollers are externally connected with synchronous wheels, and the synchronous wheels of each set of external pressure rollers are connected by synchronous belts; The internal pressure protrusion comprises a curved substrate fixed on the roller surface of the supporting roller, a molded inner support ring arranged on the curved substrate, and a hard outer support ring wrapped around the outer periphery of the molded inner support ring; The inner cavity of the bending machine is also provided with a cooling component, which is arranged between the external pressure roller group. A coolant pipeline is arranged on the cooling component. The coolant pipeline extends inward and is installed with a nozzle. The nozzle is located in the gap formed by the external pressure component and the internal pressure component.

2. The wire rope winding machine according to claim 1, characterized in that: A guide cavity is arranged at the inlet position of the carriage of the bending machine, and the guide assembly is arranged in the guide cavity. The guide assembly includes guide frames that are symmetrically arranged.

3. The wire rope winding machine according to claim 2, characterized in that: The guide frame includes a mounting base block mounted on the inner wall of the guide cavity, a support frame arranged on the mounting base block, and an inner frame arranged on the support frame, wherein a positioning roller and a movable roller are respectively mounted on the inner frame, and the roller shaft of the movable roller is connected to a power shaft through a bushing.

4. The wire rope winding machine according to claim 1, characterized in that: The conveying assembly is installed on the conveying surface of the conveying mechanism, and the conveying assembly includes a transmission frame on the conveying mechanism and a plurality of conveying rollers arranged on the transmission frame. The roller shafts of the conveying rollers are synchronously driven by the crawler belts, and the roller surfaces of the conveying rollers are equidistantly arranged with driving ribs.

5. The wire rope winding machine according to claim 1, characterized in that: The bearing assembly includes a bearing box installed on the conveying mechanism, the bearing box has an inner cavity, the bearing box is provided with a bearing table located in the same plane as the fixed point tangent of the conveying roller, the bearing table is connected to the inner cavity and is provided with a plurality of oil outlet holes.

Images