A roller single beam crane

Abstract

The present invention discloses a single-beam crane for rolling mills, comprising: a moving car body, a lifting mechanism, a deadweight clamping assembly and a hanging beam assembly. A counterweight turntable is rotatably mounted on the top surface of the moving car body. A controller for controlling the moving car body, the counterweight turntable and the lifting mechanism is arranged inside the moving car body. The lifting mechanism comprises a connecting rod lifting assembly, a telescopic beam arm, a small arm assembly and an end turntable movably mounted at one end of the small arm assembly. The connecting rod lifting assembly is located inside the counterweight turntable. In the present invention, by setting a new type of lifting clamping assembly, the hanging beam assembly and the deadweight clamping assembly cooperate with each other, and the sliding movement of the deadweight clamping assembly on the surface of the hanging beam assembly replaces the flexible sling lifting of the rolling mill. The deadweight clamping assembly can restrictively slide on the surface of the limit plate to adapt to the lifting of rolling mills of different sizes, and restrict the free deflection movement of the rolling mill, so as to facilitate docking and installation with the rolling mill and improve the lifting safety.

Description

Technical Field

[0001] The invention relates to the technical field of roller hoisting equipment, in particular to a roller single-beam crane. Background Art

[0002] Roller production bridge crane is used to lift and move the machinery for producing rolls. The existing roller production bridge crane includes a bridge, an electric hoist, a left motor, a right motor, a left gear box and a right gear box. The electric hoist is set at the bottom of the bridge, and a hook is provided at the bottom of the electric hoist.

[0003] Some existing special lifting devices for roller lifting cranes have the following problems: when the left motor or the right motor fails, the forward strokes of the left and right ends will be different, causing the bridge to tilt and easily derail, posing a major safety hazard; each time the roller is lifted, it can only be lifted with a sling, which makes the roller easy to shake or deflect during the lifting process, not only there is a risk of the roller falling, but also there is a risk of accidental injury to staff, which reduces the safety of the roller during transportation.

[0004] In addition, the rope and the sling are flexible connection structures. During the lifting process, the flexible connection method causes the roller to be easily tilted and deflected. The center tilts downward or vertically downward along the surface of the roller, causing the roller to easily slide downward and cause a safety accident. In addition, the existing crane uses a clamp structure during lifting, and the deadweight of the roller is used to react on the sling to pull the clamp for clamping. The tilting and deflection can easily cause one end of the clamp to loosen and fall off. In addition, the flexible lifting method makes it difficult to dock and install the roller and the rolling mill, and the installation efficiency is low and there are certain defects.

[0005] In view of this, research and improvement are carried out on the existing problems, and a rolling mill single-beam crane is provided to solve the current problems. The purpose is to solve the problems and improve the practical value through this technology. Summary of the invention

[0006] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0007] To this end, the technical solution adopted by the present invention is: a rolling mill single-beam crane, comprising: a moving car body, a lifting mechanism, a deadweight clamping assembly and a lifting beam assembly, a counterweight turntable is rotatably mounted on the top surface of the moving car body, a controller for controlling the moving car body, the counterweight turntable and the lifting mechanism is arranged inside the moving car body, the lifting mechanism comprises a connecting rod lifting assembly, a telescopic beam arm, a small arm assembly and an end turntable movably mounted on one end of the small arm assembly, the connecting rod lifting assembly is located inside the counterweight turntable, and one end is movably connected to the inner side of the counterweight turntable, and the other end is movably connected to one end of the telescopic beam arm, and the other end of the telescopic beam arm is movably connected to the end of the small arm assembly;

[0008] The lifting beam assembly includes a main beam rod fixed to the surface of the end turntable, a flexible pull belt slidably sleeved on the surface of the main beam rod, and a lever clamp fork movably connected to the two ends of the flexible pull belt. A limit plate is fixedly installed on the surface of the main beam rod, and a sliding sleeve groove is provided between the limit plate and the main beam rod for guiding and limiting the sliding of the flexible pull belt. The self-weight clamping assembly includes a first turntable seat, a second turntable seat and a plurality of clamping plates. The number of the first turntable seat and the second turntable seat are both two groups and are symmetrically arranged on both sides of the clamping plate. The plurality of clamping plates are arranged in sequence in a circumferential direction. The surfaces of the first turntable seat and the second turntable seat are respectively provided with a plurality of diameter sleeve holes and arc sleeve holes. The surfaces of the first turntable seat and the second turntable seat are provided with side ears connected to the surface of the lever clamp fork, and the surface of the clamping plate is fixedly sleeved with a pin rod slidably sleeved on the inner side of the diameter sleeve hole and the arc sleeve hole.

[0009] In a preferred example, the present invention can be further configured as follows: a reduction motor is provided inside the mobile body for driving the movement of the mobile body and for driving the rotation of the counterweight turntable, and a number of visual sensing sensors are provided on the circumference of the counterweight turntable and the surface of the main beam, and the visual sensing sensors include any two or more combinations of cameras, radar sensors and laser distance sensors.

[0010] In a preferred example, the present invention can be further configured as follows: the surface of the controller is integrated with a wireless remote control module and an image transmission module for remote control and receiving and sending visual sensing sensor information, and an AGV navigation module for automatic navigation guidance, and the input end of the AGV navigation module is electrically connected to a number of radar navigation sensors fixed to the surface of the mobile vehicle body.

[0011] In a preferred example, the present invention can be further configured as follows: the connecting rod lifting assembly includes connecting rods arranged in parallel in groups of two and connecting plates located at the ends of the two groups of connecting rods, the surfaces of the two connecting plates are provided with a first hydraulic cylinder for driving the deflection movement of the connecting rods, the inner side of the forearm assembly is provided with a second hydraulic cylinder whose two ends are movably connected to the end of the telescopic beam arm and the inner side of the forearm assembly, and the forearm assembly is composed of two long rods arranged in parallel.

[0012] In a preferred example, the present invention can be further configured as follows: the telescopic beam arm is a telescopic rod structure including an outer rod connected to the end of the counterweight turntable and an inner rod connected to the end of the small arm assembly, the inner rod is slidably sleeved on the inner side of the outer rod, and the inner side of the outer rod is provided with a hydraulic cylinder for driving the telescopic movement of the inner rod.

[0013] In a preferred example, the present invention can be further configured as follows: the flexible drawstring is a nylon belt or a mild steel strip, the two ends of the flexible drawstring are movably connected to the surface of the lever clamp fork, and the lever clamp fork is an X-shaped structure formed by two oppositely arranged fork rods being deflected and assembled.

[0014] In a preferred example, the present invention can be further configured as follows: the two second turntable seats are symmetrically arranged on the outer side of the first turntable seat, the clamping plates are arranged in a ring shape on the opposite inner sides of the two first turntable seats, the radial sleeve holes are arranged along the radial straight line of the first turntable seat, and the arc sleeve holes are in an arc-shaped structure with the two ends respectively close to and far away from the center of the second turntable seat.

[0015] In a preferred example, the present invention can be further configured as follows: the clamping piece is in the shape of a fan-shaped plate, and an anti-skid stopper is fixedly installed on the surface of the clamping piece, and the anti-skid stopper is a rubber component.

[0016] The beneficial effects achieved by the present invention are:

[0017] 1. In the present invention, a new type of lifting and clamping assembly is provided, and the hanging beam assembly and the deadweight clamping assembly cooperate with each other, and the sliding movement of the deadweight clamping assembly on the surface of the hanging beam assembly replaces the flexible sling lifting of the roller. The deadweight clamping assembly can slide restrictively on the surface of the limit plate to adapt to the lifting of rollers of different sizes, and limit the free deflection movement of the roller, which is convenient for docking and installation with the rolling mill and improves the lifting safety.

[0018] 2. In the present invention, by setting up a self-weight clamping assembly structure, the relative deflection movement of the first turntable seat and the second turntable seat during the hoisting of the rolling roller is utilized to drive a plurality of clamping plates to move radially to surround and clamp the surface of the rolling roller. There are more contact points with the surface of the rolling roller and the stability of the surrounding clamping is significantly improved, thereby further improving the hoisting safety.

[0019] 3. In the present invention, an independent single-beam lifting structure is set up, and the mobile body realizes independent electric drive movement and performs deflection movement under the operation of the hydraulic cylinder inside the connecting rod lifting assembly and the small arm assembly to realize the lifting operation. The telescopic beam arm is coordinated to perform multi-axis independent movement, which is convenient for the lifting and transportation of the rolling mill rolls and the calibration and alignment operation with the rolling mill installation position, which is convenient for the installation and transportation of the rolling mill rolls, and has high flexibility and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the installation structure of a lifting mechanism according to an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the structure of a telescopic beam arm and a forearm assembly according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic structural diagram of a deadweight clamping assembly and a hanging beam assembly according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic structural diagram of a hanging beam assembly according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of a deadweight clamping assembly according to an embodiment of the present invention;

[0026] Figure 7 The figure is a schematic diagram of the structure of a clamping piece according to an embodiment of the present invention.

[0027] Reference numerals:

[0028] 100. Mobile vehicle body; 110. Counterweight turntable;

[0029] 200, lifting mechanism; 210, connecting rod lifting assembly; 220, telescopic beam arm; 230, small arm assembly; 240, end turntable;

[0030] 300, self-weight clamping assembly; 310, first turntable seat; 320, second turntable seat; 330, clamping sheet; 311, radial sleeve hole; 321, arc sleeve hole; 331, pin rod; 332, anti-slip block;

[0031] 400, hanging beam assembly; 410, main beam rod; 420, limit plate; 430, flexible pull belt; 440, lever clamp fork; 421, sliding sleeve groove. DETAILED DESCRIPTION

[0032] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0033] A roller single-beam crane provided by some embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0034] Combination Figure 1-7 As shown, a rolling mill single-beam crane provided by the present invention comprises: a moving car body 100, a lifting mechanism 200, a deadweight clamping assembly 300 and a hanging beam assembly 400, a counterweight turntable 110 is rotatably mounted on the top surface of the moving car body 100, a controller for controlling the moving car body 100, the counterweight turntable 110 and the lifting mechanism 200 is arranged inside the moving car body 100, the lifting mechanism 200 comprises a connecting rod lifting assembly 210, a telescopic beam arm 220, a small arm assembly 230 and an end turntable 240 movably mounted on one end of the small arm assembly 230, the connecting rod lifting assembly 210 is located inside the counterweight turntable 110, and one end is movably connected to the inner side of the counterweight turntable 110, and the other end is movably connected to one end of the telescopic beam arm 220, and the other end of the telescopic beam arm 220 is movably connected to the end of the small arm assembly 230;

[0035] The suspension beam assembly 400 includes a main beam 410 fixed to the surface of the end turntable 240, a flexible pull belt 430 slidably sleeved on the surface of the main beam 410, and a lever clamp fork 440 movably connected to both ends of the flexible pull belt 430. A limit plate 420 is fixedly installed on the surface of the main beam 410, and a sliding sleeve groove 421 is provided between the limit plate 420 and the main beam 410 for guiding and limiting the sliding of the flexible pull belt 430. The deadweight clamping assembly 300 includes a first turntable seat 310, a second turntable seat 320 and a plurality of clamping plates 330. There are two groups of a turntable seat 310 and a second turntable seat 320, which are symmetrically arranged on both sides of the clamping plate 330. The clamping plates 330 are arranged in sequence in a circular direction. The surfaces of the first turntable seat 310 and the second turntable seat 320 are respectively provided with a plurality of diameter sleeve holes 311 and arc sleeve holes 321. The surfaces of the first turntable seat 310 and the second turntable seat 320 are provided with side ears connected to the surface of the lever clamping fork 440. The surface of the clamping plate 330 is fixedly sleeved with a pin rod 331 that is slidably sleeved on the inner side of the diameter sleeve hole 311 and the arc sleeve hole 321.

[0036] In this embodiment, a reduction motor is provided inside the mobile body 100 for driving the mobile body 100 to move and for driving the counterweight turntable 110 to rotate. A number of visual sensing sensors are provided on the circumference of the counterweight turntable 110 and the surface of the main beam 410. The visual sensing sensors include any two or more combinations of cameras, radar sensors and laser distance sensors.

[0037] Specifically, the mobile body 100 and the counterweight turntable 110 are utilized to independently move and rotate, so as to realize flexible motion control of the lifting mechanism 200 and the hoisting rollers, which is easy to operate, and a plurality of sensor structures are provided on the surface to timely sense the distance to structures such as objects and structures, judge the surrounding environment and avoid collision.

[0038] In this embodiment, the surface of the controller is integrated with a wireless remote control module and an image transmission module for remote control and sending and receiving visual sensing sensor information, as well as an AGV navigation module for automatic navigation guidance. The input end of the AGV navigation module is electrically connected to a number of radar navigation sensors fixed to the surface of the mobile vehicle body 100.

[0039] Specifically, a manual remote control module and an AGV automatic navigation structure are arranged at the control end to realize manual or fully automatic control. The mature AGV automatic navigation structure with existing technology can drive autonomously, avoiding the tediousness of manual pushing or trailering, and can accurately locate and transport objects in the workshop, thereby improving the accuracy and stability of the production process. It can adapt to the complex environment of the workshop, such as narrow space, obstruction of other objects and adverse factors of the workshop environment, and has strong applicability.

[0040] In this embodiment, the connecting rod lifting assembly 210 includes connecting rods arranged in parallel in groups of two and connecting plates at the ends of the two groups of connecting rods. The surfaces of the two connecting plates are provided with a first hydraulic cylinder for driving the deflection movement of the connecting rods. The inner side of the small arm assembly 230 is provided with a second hydraulic cylinder whose two ends are movably connected to the end of the telescopic beam arm 220 and the inner side of the small arm assembly 230. The small arm assembly 230 is composed of two long rods arranged in parallel.

[0041] Specifically, the hydraulic cylinder is used to drive the connecting rod lifting assembly 210 and the small arm assembly 230 to perform deflection movement, thereby realizing the lifting movement control.

[0042] In this embodiment, the telescopic beam arm 220 is a telescopic rod structure including an outer rod connected to the end of the counterweight turntable 110 and an inner rod connected to the end of the small arm assembly 230. The inner rod is slidably sleeved on the inner side of the outer rod, and the inner side of the outer rod is provided with a hydraulic cylinder for driving the telescopic movement of the inner rod.

[0043] Specifically, the flexible movement of the rollers is achieved through the telescopic movement of the telescopic beam arm 220, so that the rollers can be lifted and transported.

[0044] In this embodiment, the flexible drawstring 430 is a nylon belt or a mild steel strip, and both ends of the flexible drawstring 430 are movably connected to the surface of the lever clamp 440. The lever clamp 440 is an X-shaped structure formed by two oppositely arranged fork rods being deflected and assembled.

[0045] Specifically, the flexible pull belt 430 is used to slide within the sliding sleeve groove 421 to adapt to the lifting of rollers of different specifications and lengths. The limited sliding can prevent the rollers from tipping over during the lifting process, and the flexible pull belt 430 can be deformed by the weight of the roller to pull the lever clamp 440 to deform and deflect.

[0046] In this embodiment, the two second turntable seats 320 are symmetrically arranged on the outer side of the first turntable seat 310, the clamping plates 330 are arranged in a ring shape on the relatively inner sides of the two first turntable seats 310, the radial sleeve holes 311 are arranged along the radial straight line of the first turntable seat 310, and the arc sleeve holes 321 are in an arc-shaped structure with the two ends respectively close to and far away from the center of the second turntable seat 320.

[0047] Furthermore, the clamping piece 330 is in the shape of a fan-shaped plate, and an anti-skid stopper 332 is fixedly installed on the surface of the clamping piece 330 , and the anti-skid stopper 332 is a rubber component.

[0048] Specifically, the relative movement of the diameter sleeve hole 311 and the arc sleeve hole 321 on the surface of the first turntable seat 310 and the second turntable seat 320 is used to guide the pin rod 331, so that the pin rod 331 and the clamping piece 330 move along the radial direction of the first turntable seat 310 to abut and clamp the roller surface.

[0049] The working principle and use process of the present invention:

[0050] When the roller single-beam crane is used, the distance between the two self-weight clamping assemblies 300 is adjusted to adapt to the clamping work of rollers of different specifications by sliding the lever clamping fork 440 on the surface of the main beam 410, and the self-weight clamping assembly 300 is sleeved on the surface of the roller. During the lifting work, the main beam 410 rises and the flexible pull belt 430 slides freely inside the sliding sleeve groove 421, and the lever clamping fork 440 and the main beam 410 are relatively deflected, and the lever clamping fork 440 is gradually lifted, and the flexible pull belt 430 slides freely inside the sliding sleeve groove 421. Under the flexible phase change pulling of the belt 430, one end of the lever clamping fork 440 deflects and gradually contracts, so that the other end of the lever clamping fork 440 pulls the first turntable seat 310 and the second turntable seat 320 to deflect relative to each other, and the relative movement of the radial sleeve hole 311 and the arc sleeve hole 321 on the surface of the first turntable seat 310 and the second turntable seat 320 is used to guide the pin rod 331, so that the pin rod 331 and the clamping piece 330 move along the radial direction of the first turntable seat 310, so as to abut and clamp the surface of the roller;

[0051] The movement of the mobile body 100 is controlled under remote control drive or AGV navigation guidance control. The control end controls the movement and steering of the mobile body 100, the automatic deflection of the counterweight turntable 110, the lifting and deflection of the connecting rod lifting assembly 210 and the small arm assembly 230, and the telescopic movement of the telescopic beam arm 220 to realize the lifting, transportation and alignment installation of the rollers with the rolling mill.

[0052] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A roller single beam crane, characterized in that: include: A mobile body (100), a lifting mechanism (200), a deadweight clamping assembly (300) and a lifting beam assembly (400); a counterweight turntable (110) is rotatably mounted on the top surface of the mobile body (100); a controller for controlling the mobile body (100), the counterweight turntable (110) and the lifting mechanism (200) is provided inside the mobile body (100); the lifting mechanism (200) comprises a connecting rod lifting assembly (210), a telescopic beam arm (220), a small arm assembly (230) and an end turntable (240) movably mounted on one end of the small arm assembly (230); the connecting rod lifting assembly (210) is located inside the counterweight turntable (110), one end of which is movably connected to the inner side of the counterweight turntable (110), and the other end of which is movably connected to one end of the telescopic beam arm (220); the other end of the telescopic beam arm (220) is movably connected to the end of the small arm assembly (230); The suspension beam assembly (400) comprises a main beam (410) fixed to the surface of the end turntable (240), a flexible pull belt (430) slidably sleeved on the surface of the main beam (410), and a lever clamp (440) movably connected to both ends of the flexible pull belt (430). A limit plate (420) is fixedly installed on the surface of the main beam (410), and a sliding sleeve groove (421) for guiding and limiting the sliding of the flexible pull belt (430) is provided between the limit plate (420) and the main beam (410). The deadweight clamping assembly (300) comprises a first turntable seat (310), a second turntable seat (320) and a plurality of clamping plates (330). The first turntable seat (310) and the second turntable seat (320) are both provided in two groups and are symmetrically arranged on both sides of the clamping piece (330). The clamping pieces (330) are arranged in sequence in a circumferential direction. The surfaces of the first turntable seat (310) and the second turntable seat (320) are respectively provided with a plurality of diameter sleeve holes (311) and arc sleeve holes (321). The surfaces of the first turntable seat (310) and the second turntable seat (320) are provided with side ears connected to the surface of the lever clamping fork (440). The surfaces of the clamping piece (330) are fixedly sleeved with a pin rod (331) which is slidably sleeved on the inner sides of the diameter sleeve hole (311) and the arc sleeve hole (321).

2. A roller single beam crane according to claim 1, characterized in that: A reduction motor for driving the moving body (100) to move and for driving the counterweight turntable (110) to rotate is provided inside the moving body (100), and a plurality of visual sensing sensors are provided in the circumference of the counterweight turntable (110) and on the surface of the main beam (410), wherein the visual sensing sensors include any two or more combinations of cameras, radar sensors and laser distance sensors.

3. A roller single beam crane according to claim 2, characterized in that: The surface of the controller is integrated with a wireless remote control module and an image transmission module for remote control and receiving and transmitting visual sensing sensor information, as well as an AGV navigation module for automatic navigation guidance, and the input end of the AGV navigation module is electrically connected to a plurality of radar navigation sensors fixed to the surface of the mobile vehicle (100).

4. The roller single-beam crane according to claim 1, characterized in that: The connecting rod lifting assembly (210) comprises connecting rods arranged in parallel in groups of two and connecting plates located at the ends of the two groups of connecting rods, the surfaces of the two connecting plates are provided with a first hydraulic cylinder for driving the connecting rods to deflect, the inner side of the small arm assembly (230) is provided with a second hydraulic cylinder whose two ends are movably connected to the ends of the telescopic beam arm (220) and the inner side of the small arm assembly (230), and the small arm assembly (230) is composed of two long rods arranged in parallel.

5. The roller single-beam crane according to claim 1, characterized in that: The telescopic beam arm (220) is a telescopic rod structure comprising an outer rod connected to the end of the counterweight turntable (110) and an inner rod connected to the end of the small arm assembly (230); the inner rod is slidably sleeved on the inner side of the outer rod, and a hydraulic cylinder for driving the inner rod to telescope is provided on the inner side of the outer rod.

6. The roller single-beam crane according to claim 1, characterized in that: The flexible drawstring (430) is a nylon belt or a mild steel strip. Both ends of the flexible drawstring (430) are movably connected to the surface of a lever clamp fork (440). The lever clamp fork (440) is an X-shaped structure formed by two oppositely arranged fork rods being deflected and assembled.

7. The roller single-beam crane according to claim 1, characterized in that: The two second turntable seats (320) are symmetrically arranged on the outside of the first turntable seat (310), the clamping piece (330) is arranged in an annular shape on the opposite inner sides of the two first turntable seats (310), the radial sleeve hole (311) is arranged along a radial straight line of the first turntable seat (310), and the arc sleeve hole (321) is in an arc-shaped structure with two ends respectively close to and far from the center of the second turntable seat (320).

8. The roller single-beam crane according to claim 1, characterized in that: The clamping piece (330) is in the shape of a fan-shaped plate, and an anti-skid stopper (332) is fixedly mounted on the surface of the clamping piece (330), wherein the anti-skid stopper (332) is a rubber component.

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