Roller furnace lifting mechanism

Abstract

The utility model discloses a roller bed furnace lifting mechanism which is applied to a roller bed furnace, a furnace door is arranged on the roller bed furnace, a support roller bed platform is arranged in front of the furnace door, a roller bed lifting machine is arranged between the roller bed furnace and the support roller bed platform, and the roller bed lifting machine is located below the furnace door. Production potential safety hazards of workers are eliminated, the height of the conveying roller is automatically positioned, even if the conveying roller is used for a long time and a moving part of the lifting driving device has large deviation, the height deviation of the conveying roller cannot be caused, the risk that the conveying roller collides with the furnace door is eliminated, and the furnace door and the roller way lifting machine are prevented from being collided and damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of roller hearth furnaces, in particular to a roller hearth furnace lifting mechanism. Background Art

[0002] During the operation of a roller hearth furnace, conveyor rollers are used on the outside of the furnace door to enter or discharge the material. In the existing operation process, the furnace door often cannot be closed normally, or a bottom-open structure is adopted, which wastes heat seriously. At the same time, due to the poor insulation effect, there are certain safety hazards to the safety of workers. Therefore, it is necessary to provide an energy-saving, safe and reliable way to achieve closed heat treatment operations. Summary of the Invention

[0003] The utility model overcomes the deficiencies in the prior art and provides a roller furnace lifting mechanism.

[0004] In order to solve the above technical problems, the utility model is realized through the following technical solutions: a roller furnace lifting mechanism is applied to a roller furnace, the roller furnace is provided with a furnace door, a support roller platform is provided in front of the furnace door, a roller elevator is provided between the roller furnace and the support roller platform, the roller elevator is located below the furnace door, and the roller furnace lifting mechanism also includes a linkage interlocking system between the furnace door and the roller elevator.

[0005] Preferably, the interlocking interlocking system includes a ground distance meter and a furnace door distance meter provided in the middle part of the roller elevator, the furnace door distance meter faces the bottom end face of the furnace door, the ground distance meter and the furnace door distance meter are both electrically connected to the control system of the roller furnace, and the roller elevator is electrically connected to the control system of the roller furnace.

[0006] Preferably, the roller elevator includes a base, a lifting drive device is installed on the base, a roller base is provided above the lifting drive device, a support seat is provided above the roller base, the number of the support seats is even, the support seats are arranged in groups on the left and right, a conveying roller is provided between each group of support seats, a distance meter facing the furnace door is installed in the middle part of the roller base away from the conveying roller, a distance meter facing the ground is also installed in the middle part of the roller base, and the lifting drive device is electrically connected to the control system of the roller furnace.

[0007] Preferably, the right end of the conveying roller installed on any group of the support seats is connected to the reducer through the right support seat, the reducer is connected to the motor, and the reducer and the motor are both installed on the roller base.

[0008] Preferably, the lifting drive device is cylinder-driven or hydraulically driven.

[0009] Compared with the prior art, the present invention has the following significant advantages:

[0010] 1. The technical solution of the utility model forms a closed furnace door structure for the roller furnace, which has obvious energy-saving and heat-insulating effects and eliminates the hidden dangers of production safety for workers.

[0011] 2. The technical solution of the utility model adopts a distance meter toward the ground and a distance meter toward the furnace door to automatically locate the height of the conveyor roller. Even if the moving parts of the lifting drive device have large deviations after a long period of use, it will not cause the height of the conveyor roller to deviate.

[0012] 3. The technical solution of the utility model adopts an interlocking method to realize the automatic coordination of the furnace door and the roller elevator, and form a mutual locking effect between the height of the conveyor roller and the opening and closing state of the furnace door, eliminating the risk of collision between the conveyor roller and the furnace door, and preventing the furnace door and the roller elevator from colliding with each other.

[0013] The present invention is described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of a roller furnace lifting mechanism of the present utility model.

[0015] Figure 2 This is the right side view of the roller elevator and roller furnace combined.

[0016] Figure 3 This is the right side view of the roller elevator.

[0017] Figure 4 This is the front view of the roller elevator. DETAILED DESCRIPTION

[0018] like Figures 1 to 4 As shown, a roller furnace lifting mechanism is applied to a roller furnace 1, wherein the roller furnace 1 is provided with a furnace door 2, and a support roller platform 4 is provided in front of the furnace door 2. A roller elevator 3 is provided between the roller furnace 1 and the support roller platform 4, and the roller elevator 3 is located below the furnace door 2. The roller furnace lifting mechanism also includes a linkage interlocking system between the furnace door 2 and the roller elevator 3, and the linkage interlocking system includes a ground distance meter 308 and a furnace door distance meter 309 provided in the middle part of the roller elevator 3, and the furnace door distance meter 309 faces the bottom end surface of the furnace door 2. The ground distance meter 308 and the furnace door distance meter 309 are both electrically connected to the control system of the roller furnace 1, and the roller elevator 3 is electrically connected to the control system of the roller furnace 1.

[0019] The roller elevator 3 includes a base 301, on which a lifting drive device 302 is installed. A roller base 303 is provided above the lifting drive device 302, and a support base 304 is provided above the roller base 303. There are four support bases 304, and the support bases 304 are arranged in groups on the left and right. A conveying roller 305 is provided between each group of support bases 304. A distance meter 309 facing the furnace door is installed in the middle part of the roller base 303, avoiding the conveying roller 305. A distance meter 308 facing the ground is also installed in the middle part of the roller base 303. The lifting drive device 302 is electrically connected to the control system of the roller furnace 1, and the lifting drive device 302 is driven by a cylinder.

[0020] The right end of the conveying roller 305 installed on any group of the support seats 304 is connected to the reducer 306 through the right support seat 304, and the reducer 306 is connected to the motor 307. The reducer 306 and the motor 307 are both installed on the roller base 303.

[0021] The working principle of this utility model is:

[0022] Parameter preset: The control system of the roller hearth furnace 1 sets the comparison parameter of the distance meter 309 toward the furnace door to 0.6 meters, and the control system of the roller hearth furnace 1 sets the comparison parameter of the distance meter 308 toward the ground to 1.2 meters.

[0023] The process of opening the furnace door: the value detected by the distance meter 309 toward the furnace door is not less than 0.6 meters, the control system of the roller furnace 1 locks the position of the roller elevator 3, and the control system of the roller furnace 1 controls the furnace door 2 to be in a fully open state and locks the furnace door 2 in position; the control system of the roller furnace 1 sends a signal to the lifting drive device 302 to raise the roller elevator 3 until the value detected by the distance meter 308 toward the ground is equal to 1.2 meters, then stops and locks the position of the lifting drive device 302. At this time, the conveying roller 305, the furnace roller inside the roller furnace 1 and the top of the roller body on the support roller platform 4 are in the same horizontal position, which facilitates the workpiece to enter and exit the roller furnace 1.

[0024] The process of closing the furnace door: the control system of the roller furnace 1 sends a signal to the lifting drive device 302, so that the roller elevator 3 is lowered to the lowest state and the roller elevator 3 is locked in position. The control system of the roller furnace 1 controls the furnace door 2 to close and lock the position; during the process of closing the furnace door, as long as the value detected by the furnace door rangefinder 309 is less than 0.6 meters, the control system of the roller furnace 1 suspends the closing process of the furnace door 2 and locks the position of the furnace door 2 to prevent the conveyor roller 305 and the furnace door 2 from colliding with each other. At this time, manual troubleshooting is required.

[0025] The technical solution of this utility model forms a closed furnace door structure for the roller furnace. Compared with the traditional furnace door with an open bottom, it has a significant energy-saving effect and a significant heat-insulating effect, eliminating the hidden safety hazards of workers. A distance meter toward the ground and a distance meter toward the furnace door are used. Each time the roller elevator is used, the lifting drive device is locked at the set height of the conveyor roller. Even if the moving parts of the lifting drive device have large deviations due to long years of use, it will not cause deviations in the height of the conveyor roller. An interlocking method is used to achieve automatic coordination between the furnace door and the roller elevator, and form a mutual locking effect between the height of the conveyor roller and the opening and closing state of the furnace door, eliminating the risk of collision between the conveyor roller and the furnace door, and preventing damage to the furnace door and the roller elevator from collision.

[0026] In addition to the above-mentioned embodiments, other undescribed implementation methods should also be within the scope of protection of the present invention. The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art of the present invention may make various modifications or additions to the described specific embodiments or replace them in a similar manner, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims. Although this article uses specific terms for explanation, it does not exclude the possibility of using other terms. These terms are used only to conveniently describe and explain the essence of the present invention. Interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A roller furnace lifting mechanism, characterized in that: The invention is applied to a roller furnace (1), wherein the roller furnace (1) is provided with a furnace door (2), a support roller platform (4) is provided in front of the furnace door (2), a roller elevator (3) is provided between the roller furnace (1) and the support roller platform (4), the roller elevator (3) is located below the furnace door (2), and the roller furnace lifting mechanism further includes a linkage interlocking system between the furnace door (2) and the roller elevator (3).

2. The roller hearth furnace lifting mechanism according to claim 1, characterized in that: The linkage interlocking system includes a ground-facing distance meter (308) and a furnace door-facing distance meter (309) provided in the middle portion of the roller elevator (3), wherein the furnace door-facing distance meter (309) faces the bottom end surface of the furnace door (2), and the ground-facing distance meter (308) and the furnace door-facing distance meter (309) are both electrically connected to the control system of the roller furnace (1), and the roller elevator (3) is electrically connected to the control system of the roller furnace (1).

3. The roller hearth furnace lifting mechanism according to claim 2, characterized in that: The roller elevator (3) comprises a base (301), a lifting drive device (302) is installed on the base (301), a roller base (303) is provided above the lifting drive device (302), a support base (304) is provided above the roller base (303), the support base (304) is provided in an even number, the support bases (304) are arranged in groups on the left and right, a conveying roller (305) is provided between each group of support bases (304), a furnace door distance meter (309) is installed in the middle part of the roller base (303) away from the conveying roller (305), and a ground distance meter (308) is also installed in the middle part of the roller base (303), and the lifting drive device (302) is electrically connected to the control system of the roller furnace (1).

4. The roller hearth furnace lifting mechanism according to claim 3, characterized in that: The right end of the conveying roller (305) installed on any group of the support bases (304) is connected to the reducer (306) through the right support base (304), and the reducer (306) is connected to the motor (307). The reducer (306) and the motor (307) are both installed on the roller base (303).

5. The roller hearth furnace lifting mechanism according to claim 3, characterized in that: The lifting drive device (302) is cylinder-driven or hydraulically driven.

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