Material lifting and scheduling system of roller hearth heat treatment furnace

Abstract

This application provides a material lifting and scheduling system for a roller hearth heat treatment furnace, including a frame and a motor installed at one end of the frame. A lifting cylinder is installed at the bottom of the end of the frame away from the motor, and a lifting block is installed at the output end of the lifting cylinder. A connecting block is installed at the bottom of the frame corresponding to the position of the lifting block. A sliding groove is opened on the connecting block, and a pin is fixed on the lifting block. The pin is slidably embedded in the sliding groove. A limiting rod is also provided transversely through the connecting block, and a spring ring is sleeved on the limiting rod. This relates to the technical field of industrial heat treatment equipment. When the lifting cylinder needs to be disassembled for maintenance, the limiting rod can be pulled outward against the elastic force of the spring ring, so that its end is disengaged from below the pin. The lifting block and the pin can then slide down the sliding groove and disengage from the connecting block, achieving rapid separation. The installation process is also simple and quick, effectively solving the problems of easy corrosion and difficult disassembly of bolted connections in high-temperature environments, and improving operational safety.

Description

Technical Field

[0001] This utility model relates to the field of industrial heat treatment equipment technology, and in particular to a material lifting and scheduling system for a roller hearth heat treatment furnace. Background Technology

[0002] Roller hearth heat treatment furnaces are commonly used continuous heat treatment equipment in industrial production. Workpieces are transported into the furnace for heating, heat preservation, and cooling via rotating rollers. In the material loading and unloading process, a lifting conveyor mechanism is typically required to connect furnace openings or conveyor lines at different heights.

[0003] Existing lifting and dispatching systems often have fixed tilt angles or limited adjustment ranges, making it difficult to flexibly adapt to different models and furnace opening heights of heat treatment furnaces, resulting in poor versatility. Furthermore, because the lifting structure operates under high temperatures for extended periods, its connecting components are prone to thermal deformation and oxidation. When repairing or replacing components such as the lifting cylinder, traditional bolt connections become extremely inconvenient due to corrosion and jamming, leading to time-consuming, labor-intensive, and safety hazards associated with high-temperature operation.

[0004] Therefore, there is an urgent need for a scheduling system that can flexibly adjust the tilt angle and can be quickly installed and disassembled. Utility Model Content

[0005] To overcome the existing problems, this application provides a material lifting and scheduling system for a roller hearth heat treatment furnace, which aims to solve the problems of inflexible lifting angle adjustment and difficulty in maintenance and disassembly of key components under high temperature conditions in the prior art.

[0006] The technical solution adopted by the embodiments of this application to solve its technical problem is: A material lifting and dispatching system for a roller hearth heat treatment furnace includes a frame and an electric motor disposed at one end of the frame. The output end of the frame is provided with a drive roller, and the other end of the frame is provided with a driven roller. A conveyor belt driven by the drive roller and the driven roller is disposed on the frame. A lifting cylinder is disposed at the bottom of the end of the frame away from the electric motor. A lifting block is disposed at the output end of the lifting cylinder. A connecting block is disposed at the bottom of the frame corresponding to the position of the lifting block. A rotating seat is disposed at the end of the frame located at the electric motor. The connecting block has a sliding groove, and the lifting block has a pin fixed to it, which is slidably embedded in the sliding groove. A limiting rod is also provided transversely through the connecting block, and a spring ring is sleeved on the limiting rod. The spring ring provides a biasing force to the limiting rod toward the pin, so that the end of the limiting rod can abut against the bottom of the pin located at the bottom of the sliding groove, thereby limiting the position of the pin.

[0007] Preferably, the limiting rod has a handle at one end outside the connecting block, the handle is screwed to the limiting rod, and the end of the limiting rod away from the handle has an arc-shaped structure.

[0008] Preferably, the limiting rod is provided with a limiting block to prevent the spring coil from falling off.

[0009] Preferably, the groove is a vertically arranged strip groove with a size larger than that of the pin.

[0010] Preferably, the lifting cylinder drives the frame to rotate about the end of it closest to the motor, thereby adjusting the tilt angle of the frame.

[0011] Preferably, the bottom of the lifting cylinder is hinged to the foundation or movable base.

[0012] The advantages of the embodiments of this application are: 1. The tilt angle of the frame can be easily adjusted by extending and retracting the lifting cylinder, thus flexibly adapting to furnace openings or conveyor lines of different heights and greatly improving the versatility of the equipment.

[0013] 2. When the lifting cylinder needs to be disassembled for maintenance, simply overcome the elastic force of the spring ring and pull the limit rod outward so that its end is disengaged from below the pin. The lifting block and the pin can then slide down the slide groove and disengage from the connecting block, achieving quick separation. The installation process is also simple and quick, effectively solving the problems of easy corrosion of bolt connections and difficulty in disassembly under high temperature environments. This significantly reduces maintenance time and labor intensity, and improves operational safety. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the overall structure of the material lifting and dispatching system for the roller hearth heat treatment furnace of this utility model; Figure 2 This is a front view structural diagram of the material lifting and dispatching system for the roller hearth heat treatment furnace of this utility model; Figure 3 This is a front view schematic diagram of the lifting cylinder operation in the material lifting and dispatching system of the roller hearth heat treatment furnace of this utility model; Figure 4 This is a schematic diagram of the overall structure connecting the lifting cylinder and the lifting block in the material lifting and dispatching system of the roller hearth heat treatment furnace of this utility model; Figure 5 This is a front view structural diagram of the connecting block in the material lifting and dispatching system of the roller hearth heat treatment furnace of this utility model.

[0016] Explanation of key figure labels: 1. Frame; 2. Motor; 3. Conveyor belt; 4. Pin; 5. Lifting cylinder; 6. Driven roller; 7. Driven roller; 8. Connecting block; 9. Lifting block; 10. Handle; 11. Spring ring; 12. Limiting block; 13. Limiting rod; 14. Slide groove; 15. Rotary seat. Detailed Implementation

[0017] This application provides a material lifting and scheduling system for a roller hearth heat treatment furnace, which solves the problems in the prior art. By extending and retracting the lifting cylinder, the tilt angle of the frame can be easily adjusted, thereby flexibly adapting to furnace openings or conveyor lines of different heights and greatly improving the versatility of the equipment.

[0018] When the lifting cylinder needs to be disassembled for maintenance, simply overcome the elastic force of the spring coil and pull the limit rod outward so that its end is disengaged from below the pin. This will allow the lifting block and the pin to slide down the slide groove and detach from the connecting block, achieving quick separation. The installation process is also simple and quick, effectively solving the problems of easy corrosion of bolt connections and difficulty in disassembly under high temperature environments. This significantly reduces maintenance time and labor intensity, and improves operational safety.

[0019] The technical solution in this application is to solve the above problems, and the overall approach is as follows: Example This embodiment provides a specific structure for a material lifting and dispatching system for a roller hearth heat treatment furnace, such as... Figure 1-5 As shown, the device includes a frame 1 and a motor 2 installed at one end of the frame 1. The output end of the frame 1 is provided with a drive roller 7, and the other end of the frame 1 is provided with a driven roller 6. A conveyor belt 3 driven by the drive roller 7 and the driven roller 6 is installed on the frame 1. The conveyor belt 3 is tensioned and sleeved on the drive roller 7 and the driven roller 6. The motor 2 is connected to the drive roller 7 through a transmission mechanism. The drive roller 7 and the driven roller 6 are connected by a chain. When the motor 2 runs, it drives the drive roller 7 to rotate, then drives the chain to rotate, and finally drives the driven roller 6 to rotate. A lifting cylinder 5 is provided at the bottom of the end of the frame 1 away from the motor 2. A lifting block 9 is provided at the output end of the lifting cylinder 5. A connecting block 8 is provided at the bottom of the frame 1 corresponding to the position of the lifting block 9. Furthermore, the frame 1 serves as the main support structure, with a motor 2 installed at one end. The two ends inside the frame 1 are respectively equipped with a drive roller 7 and a driven roller 6. The conveyor belt 3 is tensioned and fitted onto the drive roller 7 and the driven roller 6. The motor 2 drives the drive roller 7 to rotate through a transmission mechanism such as a chain or belt (not shown in the figure), thereby driving the conveyor belt 3 to run for conveying materials.

[0020] The connecting block 8 has a sliding groove 14, and the lifting block 9 has a pin 4 fixed on it. The pin 4 is slidably embedded in the sliding groove 14. The sliding groove 14 is a vertically arranged strip groove with a size larger than that of the pin 4, so that the pin 4 can slide inside the sliding groove 14. The connecting block 8 and the limiting rod 13 have a groove at their intersection, and the two ends of the connecting block 8 have different shapes, so that the limiting rod 13 can be installed quickly. A limiting rod 13 is also provided horizontally through the connecting block 8. A spring ring 11 is sleeved on the limiting rod 13. The spring ring 11 provides a biasing force to the limiting rod 13 toward the pin 4, so that the end of the limiting rod 13 can abut against the bottom of the pin 4 located at the bottom of the slide groove 14, thereby limiting the pin 4.

[0021] Furthermore, when it is necessary to repair or replace the lifting cylinder 5, the operator can stand in a safe position and pull the limiting rod 13 outward by the handle 10 to compress the spring coil 11, so that the end of the limiting rod 13 moves away from below the pin 4. At this time, the pin 4 loses its limit and can slide freely in the slide groove 14. The lifting cylinder 5 can retract slightly, and the lifting block 9 and the pin 4 slide down the slide groove 14 under the action of gravity, and finally separate from the connecting block 8. The whole process does not require the use of tools and is fast and safe.

[0022] The limiting rod 13 has a handle 10 at one end outside the connecting block 8. The handle 10 and the limiting rod 13 are screwed together. The end of the limiting rod 13 away from the handle 10 has an arc-shaped structure. When the limiting rod 13 is pulled, the arc-shaped structure can better contact the pin 4 and reduce the friction between the pin 4 and the limiting rod 13.

[0023] The limiting rod 13 is provided with a limiting block 12 to prevent the spring coil 11 from falling off. The limiting block 12 is fixedly connected to the limiting rod 13. During installation, the end of the limiting rod 13 away from the arc is passed through the spring coil 11 and then screwed to the handle 10. At this time, the limiting block 12 abuts against the spring coil 11, and the spring coil 11 is limited under the joint action of the handle 10 and the limiting block 12.

[0024] A rotating seat 15 is provided at one end of the frame 1 located near the motor 2. The rotating seat 15 is connected to the frame 1 via a shaft, and the rotating seat 15 and the frame 1 are rotatable via the shaft at the connection point. The bottom of the lifting cylinder 5 is hinged to the foundation or a movable base. The lifting cylinder 5 drives the frame 1 to rotate around the end closest to the motor 2, thereby adjusting the tilt angle of the frame 1. The lifting cylinder 5 is connected to an external pressure pipeline, and the high-pressure gas in the external pressure pipeline provides the power for the lifting cylinder 5 to move. The power and control of the lifting cylinder 5 are existing technologies and will not be described in detail here.

[0025] Furthermore, a lifting cylinder 5 is provided at the bottom of the end of the frame 1 away from the motor 2. The bottom of the lifting cylinder 5 is hinged to the foundation or a movable base. The top of the piston rod of the lifting cylinder 5 is hinged to the bottom of the frame 1 through the lifting block 9. When the piston rod of the lifting cylinder 5 extends or retracts, it can push the frame 1 to rotate around the intersection of the frame 1 and the rotating seat 15, thereby realizing the adjustment of the tilt angle of the frame 1 and the conveyor belt 3 to adapt to the furnace opening of the heat treatment furnace at different heights.

[0026] Working and disassembly process: Under normal operating conditions, the output end of the lifting cylinder 5 extends out, and the pin 4 on the lifting block 9 is located at the upper part of the slide groove 14. At this time, under the action of the spring ring 11, the end of the limiting rod 13 is pressed against the bottom of the pin 4 to prevent the pin 4 from slipping down due to accident, thereby ensuring the reliability of the lifting mechanism connection. By controlling the extension and retraction of the lifting cylinder 5, the tilt angle of the frame 1 can be precisely adjusted.

[0027] When the lifting cylinder 5 needs to be repaired or replaced, the operator can stand in a safe position and pull the limiting rod 13 outward through the handle 10 to compress the spring coil 11, so that the end of the limiting rod 13 moves away from the pin 4. At this time, the pin 4 loses its limit and can slide freely in the slide groove 14. The lifting cylinder 5 can retract slightly, and the lifting block 9 and the pin 4 slide down the slide groove 14 under the action of gravity, and finally separate from the connecting block 8. The whole process does not require the use of tools and is fast and safe.

[0028] During installation, simply reverse the operation: first pull the limit rod 13, align the pin 4 of the lifting block 9 with and push it into the top of the slide groove 14, then release the limit rod 13. The spring ring 11 will push the limit rod 13 back to below the pin 4, completing the locking.

[0029] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A roller hearth heat treatment furnace material lifting scheduling system, characterized in that: The machine includes a frame (1) and a motor (2) located at one end of the frame (1). The output end of the frame (1) is provided with a drive roller (7), and the other end of the frame (1) is provided with a driven roller (6). The frame (1) is provided with a conveyor belt (3) driven by the drive roller (7) and the driven roller (6). A lifting cylinder (5) is provided at the bottom of the end of the frame (1) away from the motor (2). A lifting block (9) is provided at the output end of the lifting cylinder (5). A connecting block (8) is provided at the bottom of the frame (1) corresponding to the position of the lifting block (9). The connecting block (8) is provided with a sliding groove (14), and the lifting block (9) is fixed with a pin (4). The pin (4) is slidably embedded in the sliding groove (14). The connecting block (8) is also provided with a limiting rod (13) that runs horizontally through it. A spring ring (11) is sleeved on the limiting rod (13). The spring ring (11) provides a biasing force to the limiting rod (13) toward the pin (4), so that the end of the limiting rod (13) can abut against the bottom of the pin (4) located at the bottom of the sliding groove (14), thereby limiting the pin (4).

2. The roller hearth heat treatment furnace material lifting scheduling system according to claim 1, characterized in that: The limiting rod (13) has a handle (10) at one end located outside the connecting block (8).

3. The material lifting scheduling system of a roller hearth heat treatment furnace according to claim 1, characterized in that: The limiting rod (13) is provided with a limiting block (12) to prevent the spring coil (11) from falling off.

4. The roller hearth heat treating furnace material lift scheduling system of claim 1, wherein: The groove (14) is a vertically arranged strip groove, and its size is larger than that of the pin (4).

5. The material lifting scheduling system for roller hearth furnace according to claim 1, wherein: The lifting cylinder (5) drives the frame (1) to rotate around the end of it closest to the motor (2), thereby adjusting the tilt angle of the frame (1).

6. The roller hearth heat treating furnace material lift scheduling system of claim 5, wherein: The bottom of the lifting cylinder (5) is hinged to the foundation or movable base.

7. The roller hearth heat treating furnace material lift scheduling system of claim 2, wherein: The handle (10) and the limiting rod (13) are connected by a screw thread, and the end of the limiting rod (13) away from the handle (10) has an arc-shaped structure.

8. The material lifting and dispatching system for a roller hearth heat treatment furnace according to claim 1, characterized in that: The frame (1) is provided with a rotating seat (15) at one end of the motor (2).

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