Conveying roller fastening device and conveying roller dismounting and mounting method

Abstract

The invention relates to the technical field of conveying roller way maintenance, in particular to a conveying roller fastening device which comprises a first sliding assembly, a second sliding assembly, a mechanical arm, a control panel and a controller, the second sliding assembly is arranged on the first sliding assembly in a transverse sliding mode, and the mechanical arm is arranged on the second sliding assembly in a longitudinal sliding mode. The working end of the mechanical arm is provided with a visual camera and a hydraulic torque wrench from high to low, and the first sliding assembly, the second sliding assembly, the mechanical arm and the control panel are all in signal connection with the controller. According to the conveying roller fastening device, the mechanical arm can be moved to different positions on the conveying roller way through the first sliding assembly and the second sliding assembly, automatic fastening of the conveying roller can be achieved through a hydraulic torque wrench on the mechanical arm, the whole fastening and shifting process can be completed through operation of a control panel, and the operation efficiency is improved. And a hard safety net plate is not required, so that the personnel demand is greatly reduced, and the construction operation efficiency is also greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of conveyor roller maintenance, and in particular to a conveyor roller fastening device and a conveyor roller disassembly and assembly method using the device. Background Art

[0002] In the rolling production of bar steel mills, the conveyor rollers in the primary rolling main mill area are used to convey steel billets to ensure that the steel billets run forward and backward on both sides of the main mill according to production requirements. The equipment is mainly composed of conveyor rollers, bearing seats, bases and transmission mechanisms. The transmission mechanism is driven by the gear box, and then the transmission mechanism drives the conveyor rollers to transport the steel billets at the set speed. This structural composition causes the conveyor rollers to vibrate continuously under operating conditions, which causes the bearing seat bolts used to fix the conveyor rollers to loosen, and they need to be tightened and maintained periodically, generally once every two weeks.

[0003] Below the conveyor roller is a slag pit as deep as seven meters. In order to ensure the safety of personnel, when tightening the bearing seat bolts of the conveyor roller, it is necessary to set up life ropes on both sides of the conveyor roller and set up hard safety nets on the conveyor roller. In the subsequent construction process, after hanging the safety belt, the personnel stand on the hard safety nets and use hydraulic wrenches to tighten the bearing seat bolts one by one. This operation method requires personnel to carry a full set of hydraulic wrenches and move frequently on the conveyor roller. During the annual maintenance of the steel mill, there are many conveyor rollers to be maintained and the construction workload is extremely large. In order to shorten the operation time, more personnel are required during the entire operation process, and the workload is heavy; at the same time, in order to ensure the construction of personnel, a large number of hard safety nets are needed, and the subsequent maintenance and storage costs of a large number of hard safety nets are also high. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a conveying roller fastening device capable of fastening a conveying roller efficiently and automatically.

[0005] The present invention adopts the following technical solution:

[0006] The present invention provides a conveyor roller fastening device, comprising a first sliding component, a second sliding component, a manipulator, a control panel and a controller, wherein the second sliding component can be arranged on the first sliding component in a transversely slidable manner, the manipulator can be arranged on the second sliding component in a longitudinally slidable manner, the working end of the manipulator is equipped with a visual camera and a hydraulic torque wrench from high to low, and the first sliding component, the second sliding component, the manipulator and the control panel are all connected to the controller signal.

[0007] Preferably, the first sliding assembly includes a plurality of first slides arranged in parallel and at intervals, the second sliding assembly is simultaneously connected to the sliders of the plurality of first slides, and the driving motors on the plurality of first slides are all connected to the controller signal.

[0008] Preferably, the second sliding assembly is a second slide, the second slide is arranged perpendicular to the first slide, and the manipulator is installed on a slider of the second slide.

[0009] Preferably, two ends of the first slide in the length direction are respectively hinged with clamping jaw assemblies, and the clamping jaw assemblies are connected to the controller signal.

[0010] Preferably, the clamping jaw assembly comprises a clamping jaw and a driving cylinder, the middle part of the clamping jaw is hinged at one end in the length direction of the first slide, the driving cylinder is fixed on the first slide, and the driving end of the driving cylinder is hinged to one end of the clamping jaw.

[0011] Preferably, the manipulator includes a base, an extension arm assembly and a telescopic rod, the base is fixed on the second sliding assembly, the extension arm assembly can be horizontally rotatably hinged on the base, the telescopic rod is vertically arranged on the free end of the extension arm assembly, the visual camera and the hydraulic torque wrench are arranged on the telescopic rod from high to low, and the extension arm assembly, the telescopic rod, the visual camera and the hydraulic torque wrench are all connected to the controller signal.

[0012] Preferably, the extension arm assembly includes a plurality of laterally hinged extension arms, the free end of the initial extension arm is hinged to the base, the free end of the terminal extension arm is connected to the telescopic rod, and the plurality of extension arms are all connected to the controller signal.

[0013] The present invention also provides a conveyor roller disassembly and assembly method, which uses any of the conveyor roller fastening devices described above and includes the following steps:

[0014] S1: Lift the conveyor roller fastening device onto the conveyor roller table, and place the conveyor roller to be repaired within the working range of the conveyor roller fastening device;

[0015] S2: Start the conveyor roller fastening device, move the manipulator through the control panel, and place the bearing seat bolts to be removed within the field of view of the visual camera in turn, and remove the bearing seat bolts in turn by the manipulator;

[0016] S3: Lift the conveyor roller fastening device away, and lift the conveyor roller with the bearing seat bolts removed to the maintenance position for maintenance;

[0017] S4: hoisting back the conveyor roller that has been repaired, and hoisting the conveyor roller fastening device back onto the conveyor roller table, and making the conveyor roller to be fastened be within the working range of the conveyor roller fastening device;

[0018] S5: Start the conveyor roller fastening device, move the manipulator through the control panel, and place the bearing seat bolts to be fastened within the field of view of the visual camera in turn, and the manipulator completes the fastening of the bearing seat bolts in turn.

[0019] Preferably, before step S1, the conveying roller fastening device is checked to confirm that the circuit and operation of the conveying roller fastening device are normal.

[0020] Preferably, after step S5, a dedicated person checks the tightening condition of the bearing seat bolts and controls the conveying roller tightening device to tighten the bearing seat bolts that need to be tightened again.

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

[0022] The conveyor roller fastening device of the present invention can move the manipulator to different positions on the conveyor roller through the first sliding component and the second sliding component, and can realize automatic fastening of the conveyor roller through the hydraulic torque wrench on the manipulator. The entire fastening and shifting process can be completed through the control panel operation, and there is no need to set up a hard safety mesh plate, which greatly reduces the personnel requirements and greatly improves the construction work efficiency.

[0023] The conveyor roller assembly and disassembly method of the present invention adopts the above-mentioned conveyor roller fastening device, and obviously also has the above-mentioned effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the use status of the conveying roller fastening device in an embodiment of the present invention.

[0025] Figure 2 It is a schematic structural diagram of a conveying roller fastening device in an embodiment of the present invention.

[0026] The reference numerals are described as follows:

[0027] 1. First sliding assembly 34, extension arm assembly

[0028] 11. First slide 35, telescopic rod

[0029] 2. Second sliding assembly 4. Conveying roller

[0030] 3. Robot 41, conveyor roller

[0031] 31. Visual camera 5. Gripper assembly

[0032] 32. Hydraulic torque wrench 51. Gripper

[0033] 33. Base 52. Driving cylinder DETAILED DESCRIPTION

[0034] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention, but not to limit the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0038] See also Figure 1 and Figure 2 The conveyor roller fastening device of this embodiment includes a first sliding component 1, a second sliding component 2, a manipulator 3, a control panel and a controller. The second sliding component 2 can be arranged on the first sliding component 1 for transverse sliding, and the manipulator 3 can be arranged on the second sliding component 2 for longitudinal sliding. The working end of the manipulator 3 is equipped with a visual camera 31 and a hydraulic torque wrench 32 from high to low. The first sliding component 1, the second sliding component 2, the manipulator 3 and the control panel are all connected to the controller signal.

[0039] The conveying roller fastening device of this embodiment can move the manipulator 3 to different positions on the conveying roller 4 through the first sliding component 1 and the second sliding component 2, and can realize automatic fastening of the conveying roller 41 through the hydraulic torque wrench 32 on the manipulator 3. The entire fastening and shifting process can be completed through the control panel operation, and there is no need to set up a hard safety mesh plate, which greatly reduces the personnel demand and greatly improves the construction work efficiency.

[0040] When in use, the conveyor roller fastening device of this embodiment only needs to be placed on the conveyor roller 4, and the manipulator 3 is moved to the position to be fastened through the control panel. The manipulator 3 can automatically locate the position of the bearing seat bolt to be fastened and determine the brand of the bearing seat bolt through the visual camera 31. Then the controller generates an operation path based on the bearing seat bolt position information captured by the visual camera 31 in combination with a pre-programmed computer program. The controller controls the manipulator 3 to move according to the operation path, so that the hydraulic torque wrench 32 runs to the top of the bearing seat bolt and falls until the nut of the bearing seat bolt is engaged in the hydraulic torque wrench 32, thereby completing the execution of the operation path. Thereafter, the controller determines the corresponding tightening torque from the database according to the brand of the bolt, and causes the hydraulic torque wrench 32 to tighten the bolt according to the tightening torque. The above operations are repeated to complete the fastening of the conveyor roller 41.

[0041] It should be noted that the controller in this embodiment is a PLC controller.

[0042] Preferably, in this embodiment, the hydraulic torque wrench 32 is equipped with different sizes of clamping sleeves, and each size of the clamping sleeve can be matched with the bolts of the corresponding size. When the bearing seat bolts of different sizes are replaced, the hydraulic torque wrench 32 can replace the corresponding clamping sleeve, so that the same conveyor roller fastening device can fasten the bolts of different sizes of the conveyor roller 41.

[0043] It should be noted that the specifications of the bearing seat bolts on the conveying roller 41 of the conveying roller 4 are limited, and the tightening torque recorded in the controller database is between 3500N·m-4000N·m, which can achieve the tightening of the conveying rollers 41 on different conveying rollers 4.

[0044] Preferably, see Figure 2 The first sliding assembly 1 includes a plurality of first slides 11 arranged in parallel and at intervals, the second sliding assembly 2 is simultaneously connected to the sliders of the plurality of first slides 11, and the driving motors on the plurality of first slides 11 are all connected to the controller signal. It should be noted that in order to ensure the stable sliding of the second sliding assembly 2, the controller controls the driving motors on the plurality of first slides 11 to start and stop synchronously.

[0045] Preferably, see Figure 1 and Figure 2 The second sliding assembly 2 is a second slide, which is arranged perpendicularly to the first slide 11, and the manipulator 3 is mounted on a slider of the second slide. The second slide is arranged perpendicularly to the first slide 11 to ensure that the control panel can independently move the manipulator 3 longitudinally and transversely, so that the position of the manipulator 3 can be adjusted more accurately.

[0046] It should be noted that the travel speeds of the sliders on the first slide 11 and the second slide are both between 3m / min and 5m / min to ensure fast and stable position movement of the manipulator 3 .

[0047] Preferably, see Figure 1 The first slide 11 is hinged with a clamping claw assembly 5 at both ends of the length direction, and the clamping claw assembly 5 is connected to the controller signal. Since the conveying roller 41 is easy to rotate, the controller controls the clamping claw assembly 5 at both ends of the length direction of the first slide 11 to abut against a conveying roller 41, thereby preventing the conveying roller fastening device from sliding on the conveying roller 4 when the manipulator 3 is moved, which is beneficial to ensure the safety of equipment and personnel in the factory.

[0048] Preferably, see Figure 2 The clamping jaw assembly 5 includes a clamping jaw 51 and a driving cylinder 52. The middle part of the clamping jaw 51 is hinged to one end of the length direction of the first slide 11. The driving cylinder 52 is fixed on the first slide 11, and the driving end of the driving cylinder 52 is hinged to one end of the clamping jaw 51. The controller can adjust the position of the clamping jaw 51 relative to the driving roller 41 by controlling the extension and retraction of the driving end of the driving cylinder 52.

[0049] Preferably, see Figure 2 The manipulator 3 includes a base 33, an extension arm assembly 34 and a telescopic rod 35. The base 33 is fixed on the second sliding assembly 2. The extension arm assembly 34 can be horizontally rotatably hinged on the base 33. The telescopic rod 35 is vertically arranged on the free end of the extension arm assembly 34. The visual camera 31 and the hydraulic torque wrench 32 are arranged on the telescopic rod 35 from high to low. The extension arm assembly 34, the telescopic rod 35, the visual camera 31 and the hydraulic torque wrench 32 are all connected to the controller signal.

[0050] Before tightening the bearing seat bolts by the hydraulic torque wrench 32, the controller first controls the extension arm assembly 34 to rotate relative to the hinge point, so that the hydraulic torque wrench 32 moves to just above the bearing seat bolts, and then the controller controls the telescopic rod 35 to extend downward, so that the nut of the bearing seat bolt is engaged in the hydraulic torque wrench 32. Finally, the controller controls the hydraulic torque wrench 32 to rotate to achieve the tightening of the bearing seat bolts.

[0051] Preferably, in this embodiment, a telescopic motor or a hydraulic drive device connected to the controller signal is installed in the telescopic rod 35, thereby realizing the telescopic function of the telescopic rod 35.

[0052] Specifically, in this embodiment, the total weight of the extension arm assembly 34 is above 30 kg; the lifting and lowering speed of the telescopic rod 35 is 1 m / min.

[0053] Preferably, the extension arm assembly 34 includes a plurality of transversely hinged extension arms, the free end of the initial extension arm is hinged to the pedestal 33, the free end of the terminal extension arm is connected to the telescopic rod 35, and the plurality of extension arms are all connected to the controller signal. The arrangement of the plurality of extension arms enables the controller to more accurately and conveniently adjust the distance between the hydraulic torque wrench 32 and the bearing seat bolt.

[0054] It should be noted that, in the present embodiment, a rotating hydraulic cylinder connected to the controller signal is provided at the hinge point of the extension arm.

[0055] This embodiment also provides a method for disassembling and assembling a conveyor roller. Figure 1 and Figure 2 , using the conveyor roller fastening device as described above, and comprising the following steps:

[0056] S1: hoist the conveyor roller fastening device onto the conveyor roller table 4, and make the conveyor roller 41 to be repaired be located within the working range of the conveyor roller fastening device;

[0057] S2: Start the conveyor roller fastening device, move the manipulator 3 through the control panel, and sequentially place the bearing seat bolts to be removed within the field of view of the visual camera 31, and the manipulator 3 sequentially removes the bearing seat bolts;

[0058] S3: Lifting the conveyor roller fastening device away, and lifting the conveyor roller 41 with the bearing seat bolts removed to the maintenance position for maintenance;

[0059] S4: hoisting back the conveying roller 41 that has been repaired, and hoisting the conveying roller fastening device back onto the conveying roller table 4, and making the conveying roller 41 to be fastened be within the working range of the conveying roller fastening device;

[0060] S5: Start the conveyor roller fastening device, move the robot 3 through the control panel, and sequentially place the bearing seat bolts to be fastened within the field of view of the visual camera 31, and the robot 3 completes the fastening of the bearing seat bolts in sequence.

[0061] Preferably, the conveyor roller disassembly and assembly method of this embodiment requires the cooperation of two construction workers, one of whom is responsible for operating the control panel, and the other is responsible for safety monitoring to prevent accidents during the work process.

[0062] Preferably, before step S1, the conveying roller fastening device is checked to confirm that the circuit and operation of the conveying roller fastening device are normal.

[0063] Preferably, after step S5, a dedicated person checks the tightening condition of the bearing seat bolts and controls the conveying roller tightening device to tighten the bearing seat bolts that need to be tightened again.

[0064] The original conveyor roller disassembly and assembly method uses a manual hydraulic wrench to assemble and disassemble the bearing seat bolts. In order to ensure work efficiency, at least five construction workers are required to work together for more than ten hours. However, the conveyor roller disassembly and assembly method of this embodiment uses the above-mentioned conveyor roller fastening device, so only two construction workers need to work together for a maximum of five hours to complete the work, thereby greatly improving work efficiency and personnel safety.

[0065] The conveyor roller disassembly and assembly method of the present embodiment optimizes the traditional construction method, greatly reducing unnecessary construction processes (such as the setting up of life ropes before construction and their removal after construction, the setting up of safety belts before construction and their removal after construction, and the setting up of hard safety nets before construction and their removal after construction), thereby reducing maintenance time, improving the maintenance efficiency of the conveyor roller 4, and reducing risks during the operation process; and the improved construction method also avoids high-altitude operations for personnel, eliminating the risk of personnel falling from a height when replacing the conveyor roller 41.

[0066] The use of the conveyor roller fastening device and conveyor roller disassembly and assembly method of this embodiment can effectively improve the construction quality and form certain technical advantages in various aspects. This technology is worth promoting in the maintenance of similar equipment at home and abroad.

[0067] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A conveyor roller fastening device, characterized in that: The invention comprises a first sliding component (1), a second sliding component (2), a manipulator (3), a control panel and a controller, wherein the second sliding component (2) can be arranged on the first sliding component (1) in a transversely slidable manner, and the manipulator (3) can be arranged on the second sliding component (2) in a longitudinally slidable manner, and the working end of the manipulator (3) is equipped with a visual camera (31) and a hydraulic torque wrench (32) from high to low, and the first sliding component (1), the second sliding component (2), the manipulator (3) and the control panel are all connected to the controller signal.

2. The conveyor roller fastening device according to claim 1, characterized in that: The first sliding assembly (1) comprises a plurality of first slides (11) arranged in parallel and at intervals, the second sliding assembly (2) is simultaneously connected to the sliders of the plurality of first slides (11), and the driving motors on the plurality of first slides (11) are all connected to the controller signal.

3. The conveying roller fastening device according to claim 2, characterized in that: The second sliding component (2) is a second slide, the second slide is arranged perpendicular to the first slide (11), and the manipulator (3) is installed on a slider of the second slide.

4. The conveying roller fastening device according to claim 2, characterized in that: The first slide table (11) is hingedly connected to two ends of the first slide table (11) in the length direction with clamping jaw assemblies (5) respectively, and the clamping jaw assemblies (5) are connected to the controller signal.

5. The conveying roller fastening device according to claim 4, characterized in that: The clamping jaw assembly (5) comprises a clamping jaw (51) and a driving cylinder (52); the middle portion of the clamping jaw (51) is hinged to one end of the first slide (11) in the length direction; the driving cylinder (52) is fixed on the first slide (11); and the driving end of the driving cylinder (52) is hinged to one end of the clamping jaw (51).

6. The conveyor roller fastening device according to claim 1, characterized in that: The manipulator (3) comprises a pedestal (33), an extension arm assembly (34) and a telescopic rod (35); the pedestal (33) is fixed on the second sliding assembly (2); the extension arm assembly (34) is hinged on the pedestal (33) in a horizontally rotatable manner; the telescopic rod (35) is vertically arranged on the free end of the extension arm assembly (34); the visual camera (31) and the hydraulic torque wrench (32) are arranged on the telescopic rod (35) from high to low; the extension arm assembly (34), the telescopic rod (35), the visual camera (31) and the hydraulic torque wrench (32) are all connected to the controller signal.

7. The conveying roller fastening device according to claim 6, characterized in that: The extension arm assembly (34) comprises a plurality of transversely hinged extension arms, wherein the free end of the initial extension arm is hinged to the pedestal (33), and the free end of the terminal extension arm is connected to the telescopic rod (35), and the plurality of extension arms are all connected to the controller signal.

8. A method for disassembling and assembling a conveying roller, characterized in that: The conveyor roller fastening device according to any one of claims 1 to 7 is used, and comprises the following steps: S1: hoisting the conveying roller fastening device onto the conveying roller table (4), and placing the conveying roller (41) to be repaired within the working range of the conveying roller fastening device; S2: starting the conveying roller fastening device, moving the manipulator (3) through the control panel, so that the bearing seat bolts to be removed are located within the field of view of the visual camera (31) in turn, and the manipulator (3) completes the removal of the bearing seat bolts in turn; S3: lifting the conveying roller fastening device away, and lifting the conveying roller (41) with the bearing seat bolts removed to a maintenance position for maintenance; S4: hoisting back the conveying roller (41) that has been repaired, and hoisting the conveying roller fastening device back onto the conveying roller table (4), and making the conveying roller (41) to be fastened be located within the working range of the conveying roller fastening device; S5: Start the conveying roller fastening device, move the manipulator (3) through the control panel, and sequentially place the bearing seat bolts to be fastened within the field of view of the visual camera (31), and the manipulator (3) sequentially completes the fastening of the bearing seat bolts.

9. The conveyor roller disassembly and assembly method according to claim 8, characterized in that: Before step S1, the conveying roller fastening device is checked to confirm that the circuit and operation of the conveying roller fastening device are normal.

10. The conveyor roller disassembly and assembly method according to claim 8, characterized in that: After step S5, a dedicated person checks the tightening condition of the bearing seat bolts and controls the conveying roller tightening device to tighten the bearing seat bolts that need to be tightened again.

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