A cooling bed walking beam steel alignment mechanism

Abstract

The present invention discloses a cooling bed walking beam steel alignment mechanism, the cooling bed comprises a cooling bed cam, a plurality of movable racks and static racks arranged at intervals, and an alignment baffle on one side of the cooling bed, the cooling bed cam is connected with a walking beam transmission shaft, and alignment rollers are respectively arranged between adjacent movable racks and static racks; a first sprocket is respectively arranged on the same side of each alignment roller, and adjacent first sprockets are connected by a power chain; a power input mechanism is connected to the walking beam transmission shaft, and the power input mechanism comprises a second sprocket, and the second sprocket is connected to one of the first sprockets by a power chain. The cooling bed walking beam steel alignment mechanism provided by the present invention can improve the equipment capacity, reduce the difficulty of equipment operation and equipment energy consumption, and effectively reduce the electrical failure rate of the equipment and the safety hazards caused by manual production while meeting production needs.

Description

Technical Field

[0001] The invention belongs to the field of machinery and relates to a cooling bed walking beam steel alignment mechanism. Background Art

[0002] With the development of society, the demand for steel products is increasing day by day. How to improve the production efficiency and yield rate of steel has become an important bottleneck for various enterprises. Whether the steel can ensure that one end is aligned before it goes down the cooling bed is of vital importance to the next process. If the steel cannot be aligned before it goes down the cooling bed, it will cause a lot of waste of profiles in the process of sizing, reduce production efficiency, increase equipment wear, and bring safety hazards to on-site operators. At present, each unit has different practices on how to align one end of the steel during production. There are two main ways: one is to align it on the track after it goes down the cooling bed. Before the steel enters the cold shear, the track is repeatedly moved forward and backward, so that the steel is reciprocated on the baffle before the shear by inertia, so that one end of the steel is aligned before entering the cold shear. This method not only speeds up the damage of the track, motor, and baffle, but also greatly reduces the production efficiency of the steel and restricts the production of steel; the other is to align one end of the steel on the cooling bed by installing a conveyor roller between the moving rack and the static rack of the cooling bed, and using the electric The machine drives the track, and a baffle is installed at one end of the track, so that the steel section can be aligned at one end when it is on the static rack. Although this method is better than the first one, it needs to add a large number of motors and control them through PLC. After the moving rack falls, the motor drives the track through PLC control to make the steel section run to one side, and set the running time. After the running time ends, the motor is stopped through PLC control, and the moving rack of the stepping beam runs. In this process, the motor needs to be started and stopped continuously, which consumes a lot of electricity. At the same time, PLC control logic and corresponding reaction and safety time are added, which also restricts the working efficiency of the cooling bed from another aspect. Summary of the invention

[0003] In response to the technical problems existing in the front alignment of the existing cooling bed under steel sections in the above-mentioned background technology, the present invention provides a cooling bed walking beam steel alignment mechanism, which can improve equipment production capacity, reduce equipment operation difficulty and equipment energy consumption while meeting production needs, and effectively reduce the electrical failure rate of the equipment and the safety hazards caused by manual production.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention provides a cooling bed walking beam steel alignment mechanism, the cooling bed comprises a cooling bed cam, a plurality of movable racks and stationary racks arranged at intervals, and an alignment baffle on one side of the cooling bed, the cooling bed cam is connected with a walking beam transmission shaft, and alignment rollers are respectively arranged between adjacent movable racks and stationary racks; first sprockets are respectively arranged on the same side of each alignment roller, and adjacent first sprockets are connected by a power chain; a power input mechanism is connected to the walking beam transmission shaft, the power input mechanism comprises a second sprocket, and the second sprocket is connected to one of the first sprockets by a power chain.

[0006] Furthermore, an adjusting sprocket is provided on the power chain between adjacent first sprockets.

[0007] Furthermore, the first sprocket and the second sprocket are respectively a double-row sprocket and a single-row sprocket.

[0008] Furthermore, the power input mechanism includes a reducer and a flywheel, an input pulley is provided at the input end of the reducer, a first pulley connected to the input pulley through a belt is provided on the stepping beam transmission shaft, the output end of the reducer is connected to the flywheel, a gear set is connected to the flywheel, and the output end of the gear set is provided with the second sprocket.

[0009] Furthermore, the flywheel is connected to the output end of the reducer through an overrunning clutch.

[0010] Furthermore, the flywheel and the gear set are respectively arranged through a second bearing seat.

[0011] The design idea of ​​the present invention is as follows: a first pulley is installed on the stepping beam transmission shaft connected to the cam of the cooling bed, and the first pulley is connected to the input pulley of the reducer with a belt. Through the rotation of the cooling bed cam, the excess energy of the motor and the potential energy of the moving rack of the cooling bed are converted into the input kinetic energy of the reducer, thereby driving the rotation of the reducer; an overrunning clutch is installed at the output end of the reducer, and a flywheel is installed at the other end of the overrunning clutch, and a gear set is installed at the other end of the flywheel to transmit its kinetic energy to the alignment roller between the moving and static racks of the cooling bed, so that the steel section dropped from the driven rack can be aligned on the alignment roller. Since the flywheel can store energy, it can ensure that the alignment roller always runs at a certain speed, avoiding the consumption of spare parts caused by the start and stop of the roller table. At the same time, the flywheel can continuously replenish energy through the overrunning clutch without affecting the working rhythm of the entire cooling bed, thereby ensuring the energy problem of the flywheel.

[0012] Compared with the prior art, the cooling bed walking beam steel alignment mechanism described in the present invention has a novel and reasonable design, a simple structure, and is easy to implement. It can align the steel sections on the cooling bed without using electricity and PLC, and does not affect the working efficiency of the cooling bed. It can maximize the speed of the steel production line and does not need to align the steel on the track. It can not only effectively improve the production efficiency of the steel sections, reduce the wear rate of the equipment, save a lot of electricity, and reduce the failure rate of electrical appliances, but also avoid the safety hazards of personnel in the track steel alignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the top view structure of the present invention;

[0014] Figure 2 It is a side view structural schematic diagram of the present invention;

[0015] In the figure: 1. movable rack; 2. stationary rack; 3. steel; 4. first bearing seat; 5. alignment baffle; 6. fixing bolt; 7. first sprocket; 8. adjusting sprocket; 9. alignment roller; 10. reducer; 11. input pulley; 12. stepping beam transmission shaft; 13. clamping shell coupling; 14. first pulley; 15. cam; 16. overrunning clutch; 17. flywheel; 18. gear set; 19. second bearing seat; 20. power chain; 21. second sprocket. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without creative work belong to the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the common meanings understood by people with general skills in the field to which the present disclosure belongs. "Up", "down", "left", "right", "front", "back", "inside", "outside" and the like used in the patent application specification and claims of the present disclosure are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship also changes accordingly. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The parts not described in detail in the present invention are all known technologies of technicians in the field of this technology.

[0017] Embodiment 1:

[0018] See also Figure 1-2The present invention provides a cooling bed walking beam steel alignment mechanism, the cooling bed includes a cooling bed cam 15, a plurality of movable racks 1 and static racks 2 arranged at intervals, and an alignment baffle 5 arranged on one side of the cooling bed through a fixing bolt 6, the cooling bed cam 15 is connected with a walking beam transmission shaft 12 through a clamping shell coupling 13, and alignment rollers 9 are respectively arranged between adjacent movable racks 1 and static racks 2 through first bearing seats 4, and first sprockets 7 are respectively arranged on the same side of each alignment roller 9, and adjacent first sprockets 7 are connected through a power chain 20; a power input mechanism is connected to the walking beam transmission shaft 12, and the power input mechanism includes a second sprocket 21, and the second sprocket 21 is connected to one of the first sprockets 7 through a power chain 20. In this embodiment, the power input mechanism is used to drive the first sprockets 7 to rotate through the power chain 20, and then drive the alignment rollers 9 to rotate in the same direction. When there are steel sections 3 on the cooling bed, each steel section 3 steps under the action of the movable rack 1, and at the same time, the steel section 3 is moved toward the alignment baffle 5 through the alignment rollers 9, and the end portions are aligned on the alignment baffle 5, and then stepping motion is performed through the movable and static racks 1 and 2 until it is offline.

[0019] In this embodiment, in order to realize the synchronous and unidirectional rotation of each alignment roller 9, the first sprocket 7 and the second sprocket 21 are respectively a double-row sprocket and a single-row sprocket, and the first sprocket 7 drives each second sprocket 21 to rotate synchronously in the same direction to realize the transportation and alignment of the steel section 3; further, in order to ensure that the power chain 20 of the alignment roller 9 does not affect the movable rack 1 and the static rack 2, an adjusting sprocket 8 is provided on the power chain 20 between adjacent first sprockets 7 to limit and adjust the running trajectory of the power chain 20.

[0020] Embodiment 2:

[0021] On the basis of Example 1, in order to make full use of the excess energy of the motor during the rotation of the cooling bed cam 15 and the potential energy of the moving rack 1 of the cooling bed to drive the first sprockets 7 to rotate synchronously in the same direction, the present invention provides a cooling bed stepping beam steel-matching mechanism, wherein the power input mechanism includes a reducer 10 and a flywheel 17, and an input pulley 11 is provided at the input end of the reducer 10, and a first pulley 14 connected to the input pulley 11 through a belt is provided on the stepping beam transmission shaft 12, and the output end of the reducer 10 is connected to the flywheel 17 through an overrunning clutch 16, and a gear set 18 is connected to the flywheel 17, and the output end of the gear set 18 is provided with the second sprocket 21; the flywheel 17 and the gear set 18 are respectively arranged through a second bearing seat 19. When setting, first open the clamp coupling 13, then install the first pulley 14 on the stepping beam transmission shaft 12, and use a belt to connect the first pulley 14 to the input pulley 11 of the reducer 10. The rotation of the stepping beam transmission shaft 12 drives the rotation of the input pulley 11, and then the energy is stored in the flywheel 17 through the reducer 10 and the overrunning clutch 16. When the speed of the flywheel 17 is greater than the speed of the output end of the reducer 10, the reducer 10 does not provide energy to the flywheel 17 under the action of the overrunning clutch 16, and does not affect the reducer 10. and the normal operation of the stepping beam transmission shaft 12; when the speed of the flywheel 17 is lower than the speed of the output end of the reducer 10, the reducer 10 provides energy to the flywheel 17 under the action of the overrunning clutch 16, thereby ensuring the normal operation of the flywheel 17; the operation of the flywheel 17 drives the operation of the gear set 18, and under the drive of the gear set 18, the second sprocket 21 at its output end can drive the first sprocket 7, and then drive the normal operation of each alignment roller 9. In order to ensure that the steel section 3 can be aligned smoothly after the moving rack 1 falls, it is necessary to align in multiple steps, such as Figure 1 As shown, the movement of the cam 15 drives the movement of the movable rack 1 , thereby driving the steel section 3 to move forward along the alignment roller 9 , so as to achieve multi-step alignment of the steel section 3 .

[0022] When the present invention is applied on a cooling bed, firstly, the running speed of the alignment roller 9 is confirmed by measuring the linear speed to ensure that the steel section 3 can be smoothly connected when the alignment roller 9 and the moving rack 1 are running at the same time, and then the corresponding first sprocket 7, the speed ratio of the reducer 10, the input pulley 11 of the reducer 10, the first pulley 14 on the stepping beam transmission shaft 12 and the corresponding bearing seat, base, etc. are designed by directional calculation. After the design is completed, processing and installation are carried out. After the installation is completed, empty car debugging is carried out, and then cold steel debugging is carried out. After the debugging is completed, online trial rolling debugging is carried out. After the adjustment is normal, load testing can be carried out, that is, the cooling bed stepping beam is started after the rolling mill is started, so that the cooling bed charges the flywheel 17 under no-load pressure, thereby driving the rotation of the alignment roller 9. As the stepping beam keeps reciprocating, the flywheel 17 keeps Charging is carried out. Once the speed of the flywheel 17 is too low, the overrunning clutch 16 will charge it, so that the flywheel 17 can always maintain a certain speed for operation. After the steel section under the rolling mill slides into the steel section groove, the movable rack 1 of the walking beam performs reciprocating rising and falling actions under the drive of the cam 15, so that the steel section in the steel section groove and on the static rack 2 reciprocates up and down, thereby realizing the forward movement of the steel section 3 on the static rack 2 tooth by tooth; when the steel section 3 moves to the alignment roller 9 with the movable rack 1, the steel section 3 will follow the rotation of the alignment roller 9 and move toward the alignment baffle 5. Considering the stability of its operation, the rotation speed of the alignment roller 9 is not fast. The steel section 3 needs to fall on the alignment roller 9 for many times before it can touch the alignment baffle 5 to realize the alignment of the steel section 3 on the alignment roller 9. During the operation of the walking beam, the arrangement of the steel section 3 will be as follows Figure 1 As shown in the position distribution, after the steel is aligned, the steel will enter the conveyor track through the transport chain and enter the cold shearing area for length determination. After length determination, it can be packaged and stored.

[0023] After the present invention is put into use, it provides great support for production maintenance, greatly improves production efficiency, and reduces energy consumption. For example, after a certain factory implemented it, the alignment rollers previously required 10 sets of 20KW motors, with a daily energy consumption of about 4800KW·H, a cost of about 4,000 yuan, and an annual cost of about 1.46 million yuan. Since the present invention was put into use, all the costs have been saved, and a large number of electrical control and sensing components have been reduced, greatly reducing the failure rate of the equipment. In addition, the present invention simplifies the operation procedure of the equipment. In the past, due to PLC intervention, the interval time of a cycle action of the stepping beam was about 10s. Now the interval time of a cycle action of the stepping beam is 8s, which is shortened by 2s, saving about 24*60*60*0.2=17280s of PLC control time throughout the day, about 4.8 hours, that is, the production line efficiency is improved by 20%. In addition, the present invention also avoids the alignment of the track before cutting while changing it, eliminating the safety hazards caused by fatigue operation.

Claims

1. A cooling bed walking beam steel alignment mechanism, the cooling bed comprising a cooling bed cam (15), a plurality of movable racks (1) and stationary racks (2) arranged at intervals, and an alignment baffle (5) on one side of the cooling bed, the cooling bed cam (15) being connected to a walking beam transmission shaft (12), and alignment rollers (9) being respectively arranged between adjacent movable racks (1) and stationary racks (2), characterized in that: A first sprocket (7) is provided on the same side of each alignment roller (9), and adjacent first sprockets (7) are connected via a power chain (20); a power input mechanism is connected to the stepping beam transmission shaft (12), and the power input mechanism comprises a second sprocket (21), and the second sprocket (21) is connected to one of the first sprockets (7) via a power chain (20); The power input mechanism comprises a reducer (10) and a flywheel (17); an input pulley (11) is arranged at the input end of the reducer (10); a first pulley (14) connected to the input pulley (11) via a belt is arranged on the stepping beam transmission shaft (12); the flywheel (17) is connected to the output end of the reducer (10); a gear set (18) is connected to the flywheel (17); and the second sprocket (21) is arranged at the output end of the gear set (18).

2. The cooling bed walking beam steel alignment mechanism according to claim 1, characterized in that: An adjusting sprocket (8) is arranged on the power chain (20) between adjacent first sprockets (7).

3. The cooling bed walking beam steel alignment mechanism according to claim 1, characterized in that: The first sprocket (7) and the second sprocket (21) are respectively a double-row sprocket and a single-row sprocket.

4. The cooling bed walking beam steel alignment mechanism according to claim 1, characterized in that: The flywheel (17) is connected to the output end of the reducer (10) via an overrunning clutch (16).

5. The cooling bed walking beam steel alignment mechanism according to claim 1, characterized in that: The flywheel (17) and the gear set (18) are respectively arranged via a second bearing seat (19).

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