A lifting method and device for steel wheel quenching cooling process

Abstract

The present invention relates to a lifting device for the quenching and cooling process of a steel wheel, comprising a lifting device, a quenching table, and a roller; the lifting device, the quenching table, and the roller are all fixed on the equipment frame, and the lifting device quickly transfers the wheel between the roller and the quenching table; the lifting device is composed of a lifting cylinder assembly, a lifting fixed plate, a guide assembly, and a wheel clamp assembly; the lifting fixed plate is welded to the equipment frame, the lifting cylinder assembly adopts a double-stroke cylinder, the fixed end is bolted to the lifting fixed plate, the piston rod end is bolted to the clamp assembly, and the clamp assembly can move up and down with the expansion and contraction of the cylinder piston. The present invention realizes the centering of the wheel on the roller, completes the transfer between the roller and the quenching table, realizes the quenching and cooling temperature process requirements, the wheel can be quickly transferred between the roller and the quenching table, reduces the natural temperature drop, and is suitable for a wide range of wheel models.

Description

Technical Field

[0001] The invention belongs to the technical field of heat treatment of wheels in transportation, and in particular to the field of quenching and cooling of heat treatment of wheels. Background Art

[0002] With the development of steel wheels in my country, more and more process technologies are constantly developing in the field of heat treatment, quenching and cooling. How to ensure the quenching quality of steel during the quenching process has always been the focus of many studies. Compared with ordinary wheels, lightweight wheels have thinner walls and relatively weaker deformation resistance. Phase change stress is the main cause of heat treatment deformation, and the reasonable use of the thermal stress generated by the difference in cooling speed between the inner and outer layers during quenching can offset the deformation caused by phase change stress to the maximum extent. This requires us to find a set of quenching devices with process parameters such as quenching temperature, cooling rate, and cooling amplitude. In addition, solving the problem of uneven heating and cooling, selecting suitable cooling media, and improving conventional wheel production equipment are new topics for wheel heat treatment production equipment.

[0003] However, current technology cannot ensure the quenching quality while allowing the workpiece to be quickly transferred from the roller table to the quenching table for quenching and cooling treatment. Summary of the invention

[0004] The present invention aims at the problems existing in the prior art, solves the problem of rapid transfer of wheels between rollers and quenching tables during wheel quenching and cooling, and proposes a lifting method and device for steel wheel quenching and cooling process.

[0005] A lifting device for the quenching and cooling process of steel wheels.

[0006] It includes lifting device, quenching table and roller table;

[0007] The lifting device, quenching table and roller table are all fixed on the equipment frame, and the lifting device quickly transfers the wheel between the roller table and the quenching table;

[0008] The lifting device is composed of a lifting cylinder assembly, a lifting fixing plate, a guide assembly and a wheel clamp assembly;

[0009] The lifting fixed plate is welded to the equipment frame, the lifting cylinder assembly adopts a double-stroke cylinder, the fixed end is bolted to the lifting fixed plate, the piston rod end is bolted to the clamping assembly, and the clamping assembly can move up and down with the extension and contraction of the cylinder piston; the top end of the guide assembly is bolted to the clamping assembly and moves up and down with it;

[0010] The clamping jaw assembly is composed of a clamping jaw fixing frame, an active slider 1, a tensioning cylinder, an active slider push rod, an active slider 2, an active clamping jaw, a passive slider push rod, a passive slider 1, a passive slider 2, an active rocker arm, a rotating disk, a passive rocker arm, and a passive clamping jaw;

[0011] The clamping jaw fixing frame is formed by welding and fixing the clamping jaw bottom plate, the lower guide plate, the fixing column and the upper guide plate;

[0012] The tensioning cylinder, the active slider 1, the active slider 2 and the active slider push rod are all connected by bolts, the active rocker arm, the active clamp and the active slider 2 are connected by bolts; the passive slider 1, the passive slider 2 and the passive slider push rod are connected by bolts; the passive rocker arm, the passive clamp and the passive slider 2 are connected by bolts; the active slider 2 and the passive slider 2 play a role in maintaining smooth movement in the system.

[0013] Preferably, the tensioning cylinder extends and retracts to drive the active slider push rod to move, the active slider 1 slides on the lower guide plate, the active slider 2 slides on the upper guide plate with the active clamp, and at the same time drives the active rocker arm to rotate, the turntable rotates with the active rocker arm and drives the passive rocker arm to rotate, the passive rocker arm drives the passive slider 2 to move, and the passive clamp moves with the passive slider 2.

[0014] On the other hand, the present invention also proposes a lifting method for a steel wheel during quenching and cooling, comprising the following steps:

[0015] In the initial state, the lifting cylinder assembly and the tensioning cylinder are both in a retracted state;

[0016] After the workpiece reaches the specified position of the roller table, the piston rod of the lifting cylinder assembly extends, driving the clamping jaw assembly to the first height position, the piston rod of the tensioning cylinder extends, driving the active clamping jaw and the passive clamping jaw to move outward, and the four clamping jaws open to hold the wheel, the piston rod of the lifting cylinder assembly extends again to drive the clamping jaw assembly to the height of the quenching table, and after the quenching table completes the support preparation, the piston rod of the tensioning cylinder retracts, driving the active clamping jaw and the passive clamping jaw to move inward, and the four clamping jaws contract to release the wheel to the quenching table;

[0017] After the wheel completes the quenching and cooling process, the piston rod of the tensioning cylinder extends out, driving the active and passive jaws to move outward, and the four jaws open to hold the wheel. After the quenching table completes the wheel release preparation, the piston rod of the lifting cylinder assembly retracts, driving the jaw assembly and the wheel to descend to height position 1, and the piston rod of the tensioning cylinder retracts, driving the active and passive jaws to move inward, and the four jaws contract to release the wheel to the roller table;

[0018] The piston rod of the lifting cylinder assembly retracts again, driving the clamping jaw assembly to descend to the initial position, and the wheel is simultaneously transferred to the next process on the roller table.

[0019] Beneficial effects of the present invention:

[0020] The wheel is aligned on the roller table, and the transfer between the wheel and the quenching table is completed to achieve the quenching cooling temperature process requirements. It has the following advantages:

[0021] 1. The wheels can be quickly transferred between the roller and the quenching table to reduce the natural temperature drop.

[0022] 2. Adapt to a wide range of wheel models. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention has the following accompanying drawings:

[0024] Figure 1 Complete installation diagram;

[0025] Figure 2 Lifting device diagram;

[0026] Figure 3 Front view of the gripper assembly;

[0027] Figure 4 A three-dimensional view of the jaw assembly;

[0028] Figure 5 A bottom-up cutaway view of the gripper assembly;

[0029] Figure 6 Gripper fixing frame;

[0030] In the figure, 1, quenching table; 2, roller table; 3, lifting device; 4, equipment frame; 31, lifting cylinder assembly; 32, lifting fixed plate; 33, guide assembly; 34, wheel clamp assembly; 40, clamp fixing frame; 41, active slider 1; 42, tensioning cylinder; 43, active slider push rod; 44, active slider 2; 45, active clamp; 46, passive slider push rod; 47, passive slider 1; 48, passive slider 2; 49, active rocker arm; 50, turntable; 51, passive rocker arm; 52, passive clamp; 401, clamp bottom plate; 402, lower guide plate; 403, fixing column; 404, upper guide plate. DETAILED DESCRIPTION

[0031] The following combination Figure 1-6 The present invention is described in further detail.

[0032] The invention discloses a lifting method and a device for a steel wheel quenching and cooling process, which are suitable for steel wheels with a diameter of φ580-φ800mm and a height of 200-350mm.

[0033] like Figure 1 The lifting device 3, the quenching table 1, and the roller table 2 are all fixed on the equipment frame 4, and the lifting device 3 quickly transfers the wheel between the roller table 2 and the quenching table 1.

[0034] like Figure 2The lifting device 3 is composed of a lifting cylinder assembly 31, a lifting fixed plate 32, a guide assembly 33 and a wheel clamp assembly 34. The lifting fixed plate 32 is welded to the equipment frame 4. The lifting cylinder assembly 31 adopts a double-stroke cylinder. The fixed end is bolted to the lifting fixed plate 32, and the piston rod end is bolted to the clamp assembly 34. The clamp assembly 34 can move up and down with the extension and contraction of the cylinder piston; the top of the guide assembly 33 is bolted to the clamp assembly 34 and moves up and down with it to reduce the shaking of the clamp assembly 34 during the lifting process.

[0035] like Figure 3 , Figure 4 , Figure 5 The clamping jaw assembly 34 is composed of a clamping jaw fixing frame 40, an active slider 1 41, a tensioning cylinder 42, an active slider push rod 43, an active slider 2 44, an active clamping jaw 45, a passive slider push rod 46, a passive slider 1 47, a passive slider 2 48, an active rocker arm 49, a turntable 50, a passive rocker arm 51, and a passive clamping jaw 52.

[0036] like Figure 6 The clamp fixing frame 40 is formed by welding a clamp bottom plate 401, a lower guide plate 402, a fixing column 403, and an upper guide plate 404.

[0037] The tensioning cylinder 42, the active slider 1 41, the active slider 2 44 and the active slider push rod 43 are all connected by bolts, the active rocker arm 49, the active clamping claw 45 and the active slider 2 44 are also connected by bolts; the passive slider 1 47, the passive slider 2 48 and the passive slider push rod 46 are all connected by bolts, and the passive rocker arm 51, the passive clamping claw 52 and the passive slider 2 48 are also connected by bolts. The active slider 2 and the passive slider 2 play a role in maintaining stable movement in the system.

[0038] The tensioning cylinder 42 extends and retracts to drive the active slider push rod 43 to move, and then the active slider 1 41 slides on the lower guide plate 402, and the active slider 2 44 slides on the upper guide plate 404 with the active clamp 45, and at the same time drives the active rocker arm 49 to rotate, the turntable 50 rotates with the active rocker arm 49 and drives the passive rocker arm 51 to rotate, the passive rocker arm 51 drives the passive slider 2 48 to move, and the passive clamp 52 moves with the passive slider 2.

[0039] The lifting cylinder assembly 31, the tensioning cylinder 42, the active clamping jaw 45, and the passive clamping jaw 52 structures are reasonably designed, and the equipment meets the lifting requirements of products within the required specifications.

[0040] Working process: In the initial state, the lifting cylinder assembly 31 and the tensioning cylinder 42 are both in the retracted state. After the workpiece reaches the specified position of the roller table 2, the piston rod of the lifting cylinder assembly 31 extends, driving the clamping jaw assembly 34 to rise to the height position 1, and the piston rod of the tensioning cylinder 42 extends, driving the active clamping jaw 45 and the passive clamping jaw 52 to move outward, and the four clamping jaws open to hold the wheel. The piston rod of the lifting cylinder assembly 31 extends again to drive the clamping jaw assembly 34 to the height of the quenching table. After the quenching table completes the support preparation, the piston rod of the tensioning cylinder 42 retracts, driving the active clamping jaw 45 and the passive clamping jaw 52 to move inward, and the four clamping jaws shrink to release the wheel. When the wheel reaches the quenching table and the wheel completes the quenching and cooling process, the piston rod of the tensioning cylinder 42 extends out, driving the active clamping jaws 45 and the passive clamping jaws 52 to move outward, and the four clamping jaws open to support the wheel. After the quenching table completes the wheel separation preparation, the piston rod of the lifting cylinder assembly 31 retracts, driving the clamping jaw assembly 34 and the wheel to descend to height position 1, the piston rod of the tensioning cylinder 42 retracts, driving the active clamping jaws 45 and the passive clamping jaws 52 to move inward, and the four clamping jaws shrink and release the wheel to the roller table. Finally, the piston rod of the lifting cylinder assembly 31 retracts again, driving the clamping jaw assembly 34 to descend to the initial position, and the wheel is simultaneously conveyed to the next process on the roller table.

[0041] The above implementation modes are only used to illustrate the present invention, but not to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the essence and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention, and the patent protection scope of the present invention should be defined by the claims. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

Claims

1. A lifting device for a steel wheel during quenching and cooling, characterized in that: It includes lifting device, quenching table and roller table; The lifting device, quenching table and roller table are all fixed on the equipment frame, and the lifting device quickly transfers the wheel between the roller table and the quenching table; The lifting device is composed of a lifting cylinder assembly, a lifting fixing plate, a guide assembly and a wheel clamp assembly; The lifting fixed plate is welded to the equipment frame, the lifting cylinder assembly adopts a double-stroke cylinder, the fixed end is bolted to the lifting fixed plate, the piston rod end is bolted to the clamping claw assembly, and the clamping claw assembly moves up and down with the extension and contraction of the cylinder piston; the top end of the guide assembly is bolted to the clamping claw assembly and moves up and down with it; The clamping jaw assembly is composed of a clamping jaw fixing frame, an active slider 1, a tensioning cylinder, an active slider push rod, an active slider 2, an active clamping jaw, a passive slider push rod, a passive slider 1, a passive slider 2, an active rocker arm, a rotating disk, a passive rocker arm, and a passive clamping jaw; The clamping jaw fixing frame is formed by welding and fixing the clamping jaw bottom plate, the lower guide plate, the fixing column and the upper guide plate; The tensioning cylinder, the active slider 1, the active slider 2 and the active slider push rod are all connected by bolts, the active rocker arm, the active clamp and the active slider 2 are connected by bolts; the passive slider 1, the passive slider 2 and the passive slider push rod are connected by bolts; the passive rocker arm, the passive clamp and the passive slider 2 are connected by bolts; the active slider 2 and the passive slider 2 play a role in maintaining smooth movement in the system.

2. A lifting device for a steel wheel during quenching and cooling as claimed in claim 1, characterized in that: The extension and retraction of the tensioning cylinder drives the active slider push rod to move, the active slider 1 slides on the lower guide plate, the active slider 2 slides on the upper guide plate with the active clamp, and at the same time drives the active rocker arm to rotate, the turntable rotates with the active rocker arm and drives the passive rocker arm to rotate, the passive rocker arm drives the passive slider 2 to move, and the passive clamp moves with the passive slider 2.

3. A lifting method for a steel wheel during quenching and cooling, applied to a lifting device for a steel wheel during quenching and cooling as claimed in any one of claims 1 to 2, characterized in that: The steps include: In the initial state, the lifting cylinder assembly and the tensioning cylinder are both in a retracted state; After the workpiece reaches the specified position of the roller table, the piston rod of the lifting cylinder assembly extends, driving the clamping jaw assembly to the first height position, the piston rod of the tensioning cylinder extends, driving the active clamping jaw and the passive clamping jaw to move outward, and the four clamping jaws open to hold the wheel, the piston rod of the lifting cylinder assembly extends again to drive the clamping jaw assembly to the height of the quenching table, and after the quenching table completes the support preparation, the piston rod of the tensioning cylinder retracts, driving the active clamping jaw and the passive clamping jaw to move inward, and the four clamping jaws contract to release the wheel to the quenching table; After the wheel completes the quenching and cooling process, the piston rod of the tensioning cylinder extends out, driving the active and passive jaws to move outward, and the four jaws open to hold the wheel. After the quenching table completes the wheel release preparation, the piston rod of the lifting cylinder assembly retracts, driving the jaw assembly and the wheel to descend to height position 1, and the piston rod of the tensioning cylinder retracts, driving the active and passive jaws to move inward, and the four jaws contract to release the wheel to the roller table; The piston rod of the lifting cylinder assembly retracts again, driving the clamping jaw assembly to descend to the initial position, and the wheel is simultaneously transferred to the next process on the roller table.

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