Efficient transmission structure of flying shear device

Abstract

The utility model belongs to the technical field of steel rolling production, and particularly relates to an efficient transmission structure of a flying shear device, which comprises a flying shear device body, a transmission mechanism is arranged on the flying shear device body and comprises a shear blade, a double-crank mechanism and a gear box, and a second motor is fixedly mounted below the back of the gear box. Symmetrically-distributed transmission shafts are rotationally mounted in the gear box, and the driving end of the second motor penetrates through the lower portion of the back face of the gear box, extends into the gear box and is fixedly connected with the rear end of one transmission shaft; according to the flying shear device, the flying shear device body, the transmission mechanism, the shear blade, the double-crank mechanism, the gearbox, the transmission shaft, the first bevel gear, the intermediate shaft, the positioning frame, the second motor and the second bevel gear are used in cooperation, so that the transmission structure can directly drive the lower crank to operate through the driving end of the second motor; and the upper crank is indirectly driven to operate under the transmission of the intermediate shaft, so that the transmission structure is simplified, and the transmission efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel rolling production, and in particular relates to a high-efficiency transmission structure of a flying shear device. Background Art

[0002] The 500,000-ton bar rolling production line is equipped with 330, 440, and 550 rolling mills with a speed of 30-100m / min. The double-length shear at the discharge end of the 330 finishing mill, i.e. the last finished product shear, is crucial to the product quality of the entire line. During the operation of the flying shear device, the efficient transmission structure system is the core technology to ensure its fast and efficient cutting.

[0003] Traditional multiple-size flying shear devices usually use a gear transmission structure to drive the rotation of the upper and lower cranks. This structure achieves the synchronous movement of the upper and lower shear blades through multiple sets of precisely configured gears, ensuring the accuracy and efficiency of the shearing operation. Due to the complex transmission configuration involving multiple sets of gears, the traditional structure has the problem of low transmission efficiency, which will lead to energy loss and reduced operating efficiency.

[0004] Therefore, it is necessary to provide an efficient transmission structure of a flying shear device to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a high-efficiency transmission structure of a flying shear device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A high-efficiency transmission structure of a flying shear device, comprising:

[0008] A flying shear device body, wherein a transmission mechanism is arranged on the flying shear device body, wherein the transmission mechanism comprises a shear blade, a double crank mechanism and a gear box, wherein a second motor is fixedly installed below the back of the gear box, wherein symmetrically distributed transmission shafts are rotatably installed inside the gear box, and a driving end of the second motor passes through the bottom of the back of the gear box and extends to the inside of the gear box and is fixedly connected to a rear end of a transmission shaft, and second bevel gears are fixedly installed on the outer walls of the two transmission shafts;

[0009] A positioning frame is fixedly installed inside the gear box, and an intermediate shaft is rotatably installed on the positioning frame. First bevel gears are fixedly installed on the top and bottom ends of the intermediate shaft, and the installation directions of the two first bevel gears are opposite. The first bevel gears are meshed with the corresponding second bevel gears. The front ends of the two transmission shafts extend to the front of the gear box and are respectively connected to the upper crank shaft and the lower crank shaft on the double crank mechanism.

[0010] Preferably, a symmetrically distributed mounting bracket is fixedly installed on one side of the shear blade inside the body of the flying shear device, a vertical rail is fixedly installed on both mounting brackets, a screw rod is rotatably installed inside the vertical rail, an adjusting block is sleeved on the outer wall of the screw rod, and the adjusting block is slidably connected to the inner wall of the vertical rail, a first motor is fixedly installed on opposite sides of the two vertical rails, and the driving end of the first motor extends to the inside of the vertical rail and is fixedly connected to the port of the screw rod, a connecting arm is fixedly installed on one side of the two adjusting blocks, and a pressure plate is fixedly installed on the end of the connecting arm away from the adjusting block.

[0011] Preferably, protective covers are fixedly mounted on opposite sides of the two vertical rails, and the first motor is located inside the protective covers.

[0012] Preferably, a plurality of mounting grooves are provided on the sliding contact surface between the adjusting block and the inner wall of the vertical rail, balls are movably mounted on the mounting grooves, and the balls are in rolling contact with the inner wall of the vertical rail.

[0013] Preferably, a threaded hole matched with the screw rod is opened on the top of the adjusting block, and the adjusting block is threadedly connected to the screw rod through the threaded hole opened on the top of the adjusting block.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model uses the flying shear device body, transmission mechanism, shear blade, double crank mechanism, gear box, transmission shaft, first bevel gear, intermediate shaft, positioning frame, second motor and second bevel gear in coordination, so that the transmission structure can directly drive the lower crank to operate through the driving end of the second motor, and indirectly drive the upper crank to operate under the transmission of the intermediate shaft, thereby simplifying the transmission structure, reducing energy loss and complexity of mechanical transmission, improving transmission efficiency and having extremely high practicality.

[0016] 2. The utility model utilizes the coordinated use of the first motor, the vertical rail, the screw rod, the adjustment block, the connecting arm and the pressure plate. The vertical position of the two pressure plates is adjusted by the drive of the first motor so that they respectively contact the upper and lower surfaces of the steel, thereby playing a positioning role for the steel rather than a clamping role. This positioning ensures that the steel will not warp or buckle in the subsequent shearing operation. At the same time, the positioning of the pressure plate also helps to stabilize the position of the steel during the cutting process, improve the accuracy and stability of the shearing, and thus ensure the consistency and high level of processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the transmission mechanism in the utility model;

[0019] Figure 2 It is a structural schematic diagram of the flying shear device body in the utility model;

[0020] Figure 3 It is a side cross-sectional structural schematic diagram of the gear box in the utility model;

[0021] Figure 4 It is a structural schematic diagram of the adjustment block in the utility model. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply 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 a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, 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 elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] See also Figure 1-4 , an embodiment provided by the utility model:

[0025] A high-efficiency transmission structure of a flying shear device, comprising:

[0026] A flying shear device body 1 is provided with a transmission mechanism 2, which includes a shear blade 3, a double crank mechanism 4 and a gear box 5. A second motor 18 is fixedly installed below the back of the gear box 5. A symmetrically distributed transmission shaft 14 is rotatably installed inside the gear box 5. The driving end of the second motor 18 passes through the bottom of the back of the gear box 5 and extends to the inside of the gear box 5 and is fixedly connected to the rear end of a transmission shaft 14. Second bevel gears 19 are fixedly installed on the outer walls of the two transmission shafts 14.

[0027] A positioning frame 17 is fixedly installed inside the gear box 5, and an intermediate shaft 16 is rotatably installed on the positioning frame 17. The top and bottom ends of the intermediate shaft 16 are fixedly installed with a first bevel gear 15, and the first bevel gear 15 is meshed with the corresponding second bevel gear 19. The front ends of the two transmission shafts 14 extend to the front of the gear box 5 and are respectively connected to the upper crankshaft and the lower crankshaft on the double crank mechanism 4. When the gear box 5 is assembled, the percentage of the meshing contact spots of each gear should meet the following requirements: it should not be less than 70% in the tooth width direction, should not be less than 50% in the tooth height direction, and the minimum side clearance is 0.173mm.

[0028] A symmetrically distributed mounting frame 6 is fixedly installed on the side close to the shear blade 3 inside the flying shear device body 1, and a vertical rail 9 is fixedly installed on the two mounting frames 6. A screw rod 10 is rotatably installed inside the vertical rail 9, and an adjusting block 11 is sleeved on the outer wall of the screw rod 10, and the adjusting block 11 is slidingly connected to the inner wall of the vertical rail 9. A first motor 8 is fixedly installed on the opposite sides of the two vertical rails 9, and the driving end of the first motor 8 extends to the inside of the vertical rail 9 and is fixedly connected to the port of the screw rod 10. A connecting arm 12 is fixedly installed on one side of the two adjusting blocks 11, and a pressure plate 13 is fixedly installed on the end of the connecting arm 12 away from the adjusting block 11. The installation method of the mounting frame 6 can refer to the existing technology, which can be easily implemented by technical personnel in this field.

[0029] In one embodiment, protective covers 7 are fixedly installed on opposite sides of the two vertical rails 9, and the first motor 8 is located inside the protective covers 7. The protective covers 7 protect the first motor 8 and other mechanical components, preventing foreign objects or impurities from entering and damaging the equipment, thereby extending the service life of the equipment.

[0030] In one of the preferred embodiments, a plurality of mounting grooves 20 are provided on the sliding contact surface between the adjusting block 11 and the inner wall of the vertical rail 9, and balls 21 are movably mounted on the mounting grooves 20, and the balls 21 are in rolling contact with the inner wall of the vertical rail 9, thereby reducing the friction between the adjusting block 11 and the vertical rail 9, improving the efficiency of the first motor 8, and reducing the wear of the adjusting block 11, thereby improving the service life of the adjusting block 11.

[0031] In one embodiment, a threaded hole matched with the screw rod 10 is provided on the top of the adjusting block 11 , and the adjusting block 11 is threadedly connected to the screw rod 10 through the threaded hole provided on the top of the adjusting block 11 .

[0032] In one preferred embodiment, the two first bevel gears 15 are installed in opposite directions, so as to achieve the effect of opposite rotation of the two transmission shafts 14, realize the relative movement of the upper and lower shear blades 3, and complete the shearing action of the material.

[0033] The working principle of the utility model is as follows: the electrical components appearing in the text are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for controlling a computer, etc., and the existing disclosed power connection technology is not repeated in the text. The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. When in use, the second motor 18 is controlled to start working, and the driving end of the second motor 18 drives the transmission shaft 14 at the lower part of the gear box 5 to rotate. The rotation of the transmission shaft 14 directly drives the lower crank on the double crank mechanism 4 to operate, and at the same time, the rotation of the lower transmission shaft 14 will drive the second bevel gear thereon. 19 rotates, and the two transmission shafts 14 rotate synchronously through the meshing of the first bevel gear 15 and the second bevel gear 19 at the lower part and the transmission of the intermediate shaft 16. At this time, the rotation of the upper transmission shaft 14 will directly drive the upper crank of the double crank mechanism 4 to operate, so that the upper and lower cranks move synchronously. Compared with the complex transmission configuration of transmitting multiple sets of gears, this transmission structure can directly drive the lower crank to operate through the driving end of the second motor 18, and indirectly drive the upper crank to operate under the transmission of the intermediate shaft 16, which simplifies the transmission structure, reduces energy loss and the complexity of mechanical transmission, improves transmission efficiency, and has extremely high practicality.

[0034] During the process of cutting the steel, the steel is transported to the processing area inside the flying shear device body 1, and the two first motors 8 are controlled to start working. The driving end of the first motor 8 drives the screw 10 to rotate. Through the threaded transmission between the screw 10 and the adjusting block 11, and the sliding relationship between the adjusting block 11 and the vertical rail 9, the adjusting block 11 is stably moved vertically. The movement of the adjusting block 11 drives the pressure plate 13 to move through the connecting arm 12. Therefore, through the drive of the first motor 8, the vertical position of the two pressure plates 13 is adjusted so that they are respectively in contact with the upper and lower surfaces of the steel, which plays a role in positioning the steel instead of clamping it. This positioning ensures that in the subsequent operation of the shear blade 3, the steel will not warp or buckle. At the same time, the positioning of the pressure plate also helps to stabilize the position of the steel during the cutting process, improve the accuracy and stability of shearing, and thus ensure the consistency and high level of processing quality.

[0035] It is worth noting that, when the efficient transmission structure of a flying shear device of the utility model is actually installed, the connection methods of the transmission mechanism 2, the shear blade 3, the double crank mechanism 4, the gear box 5 and the mounting frame 6 are all existing technologies and can be implemented by existing technologies. The utility model is only aimed at solving the problem of low transmission efficiency in the existing transmission structure due to the complex transmission configuration involving multiple sets of gears.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An efficient transmission structure of a flying shear device, characterized in that: include: A flying shear device body (1), wherein a transmission mechanism (2) is arranged on the flying shear device body (1), wherein the transmission mechanism (2) comprises a shear blade (3), a double crank mechanism (4) and a gear box (5), wherein a second motor (18) is fixedly mounted below the back of the gear box (5), wherein symmetrically distributed transmission shafts (14) are rotatably mounted inside the gear box (5), and a driving end of the second motor (18) passes through the bottom of the back of the gear box (5) and extends to the inside of the gear box (5) and is fixedly connected to the rear end of a transmission shaft (14), and second bevel gears (19) are fixedly mounted on the outer walls of the two transmission shafts (14); A positioning frame (17) is fixedly installed inside the gear box (5), an intermediate shaft (16) is rotatably installed on the positioning frame (17), a first bevel gear (15) is fixedly installed at the top and bottom ends of the intermediate shaft (16), and the installation directions of the two first bevel gears (15) are opposite, the first bevel gear (15) is meshed with the corresponding second bevel gear (19), and the front ends of the two transmission shafts (14) extend to the front of the gear box (5) and are respectively connected to the upper crankshaft and the lower crankshaft on the double crank mechanism (4); A symmetrically distributed mounting frame (6) is fixedly installed inside the flying shear device body (1) on one side of the shear blade (3), and a vertical rail (9) is fixedly installed on both mounting frames (6). A screw rod (10) is rotatably installed inside the vertical rail (9), and an adjustment block (11) is sleeved on the outer wall of the screw rod (10), and the adjustment block (11) is slidably connected to the inner wall of the vertical rail (9). A first motor (8) is fixedly installed on the opposite sides of the two vertical rails (9), and the driving end of the first motor (8) extends to the inside of the vertical rail (9) and is fixedly connected to the end of the screw rod (10), and a connecting arm (12) is fixedly installed on one side of the two adjusting blocks (11), and a pressure plate (13) is fixedly installed on the end of the connecting arm (12) away from the adjusting block (11); In addition, protective covers (7) are fixedly installed on opposite sides of the two vertical rails (9), and the first motor (8) is located inside the protective cover (7); a plurality of mounting grooves (20) are provided on the sliding contact surface between the adjustment block (11) and the inner wall of the vertical rail (9), and balls (21) are movably installed on the mounting grooves (20), and the balls (21) are in rolling contact with the inner wall of the vertical rail (9); On this basis, a threaded hole matching the screw rod (10) is provided on the top of the adjusting block (11), and the adjusting block (11) is threadedly connected to the screw rod (10) via the threaded hole provided on the top of the adjusting block (11).

Images