Manual and automatic integrated maintenance door for main push box body of industrial kiln

Abstract

The utility model discloses a manual and automatic integrated maintenance door for a main push box body of an industrial kiln. The manual and automatic integrated maintenance door comprises a door plate, a door frame, a door cover and a door plate control mechanism, the door cover is installed on the box body right above the door frame, the door plate control mechanism is installed on the door cover, the door plate control mechanism comprises a lifting screw rod, a driving motor and a stroke control structure, a screw rod through hole is formed in the top of the door cover, a sealing ring is installed in the screw rod through hole, and the door plate control mechanism is installed on the door cover. A directional threaded sleeve is rotatably mounted in the sealing ring, a hand wheel, a driven wheel and a pressing cap are sequentially and fixedly mounted on a pipe body above the sealing ring, the lifting screw penetrates through the directional threaded sleeve and then is connected with the door plate, a driving motor is further mounted at the top of the door cover, and the power output end of the driving motor is connected with a driving wheel. The driving wheel and the driven wheel are connected through a belt. By means of the mode, the door plate can be controlled in a manual mode and an electric mode at the same time, and the door opening speed is increased.

Description

A manual / automatic maintenance door for the main push box of an industrial kiln Technical Field

[0001] This utility model relates to the field of high-temperature sintering equipment, and in particular to a manual / automatic maintenance door for the main push box of an industrial kiln. Background Technology

[0002] An industrial kiln is a device that continuously heats and sinterstens materials at high temperatures under a specific atmosphere. It is widely used in construction, metallurgy, chemical industry, and environmental protection. The main pusher box of an industrial kiln is usually equipped with a dedicated maintenance door to facilitate on-site personnel to maintain and handle equipment problems. However, the maintenance door on current industrial kilns is usually lifted by a handwheel driving a screw. Although this method is stable and reliable, manual operation is slow. In some emergencies, the speed cannot keep up, and the problem may be escalated due to untimely handling. Summary of the Invention

[0003] The main technical problem solved by this utility model is to provide a manual or electric integrated maintenance door for the main pusher box of an industrial kiln, which can simultaneously meet the requirements of manual or electric opening of the maintenance door, thereby improving the efficiency of handling emergencies.

[0004] To solve the above-mentioned technical problems, the present invention provides a manual / automatic maintenance door for the main pusher box of an industrial kiln. The manual / automatic maintenance door includes a door panel, a door frame, a door cover, and a door panel control mechanism. The door frame is disposed in the maintenance opening of the main pusher box. The door cover is installed on the box directly above the door frame. The door panel control mechanism is installed on the door cover and can drive the door panel to move vertically up and down between the door cover and the door frame, completely closing or opening the maintenance opening. The door panel control mechanism includes a lifting screw, a drive motor, and... The stroke control structure includes a screw through hole at the top of the door cover, a sealing ring installed inside the screw through hole, and a rotatable directional threaded sleeve installed inside the sealing ring. A handwheel, a driven wheel, and a pressure cap are sequentially fixed to the portion of the directional threaded sleeve above the sealing ring. The lifting screw passes through the directional threaded sleeve and connects to the door panel. A motor frame is also installed at the top of the door cover, and a drive motor is fixed to the motor frame. The power output end of the drive motor is connected to the drive wheel through a reducer, and the drive wheel and the driven wheel are connected by a belt.

[0005] In a preferred embodiment of this utility model, the travel control structure includes a switch bracket, an upper limit travel switch, a lower limit travel switch, and a detection rod. The switch bracket is fixed to the top of the door cover. The upper limit travel switch and the lower limit travel switch are mounted on the switch bracket and electrically connected to the drive motor, respectively. The detection rod passes through a preset detection hole on the top of the door cover and enters the door cover to connect with the door panel. A T-shaped head is provided at the top of the detection rod. When the door panel moves upward to fully open the maintenance opening, the T-shaped head triggers the upper limit travel switch. When the door panel moves downward to fully close the maintenance opening, the T-shaped head triggers the lower limit travel switch.

[0006] In a preferred embodiment of this utility model, the directional threaded sleeve is generally inverted T-shaped.

[0007] In a preferred embodiment of this utility model, an auxiliary directional sleeve is also installed on the lifting screw body. The auxiliary directional sleeve is mounted above the directional threaded sleeve. An auxiliary directional sleeve frame is also installed on the door cover, and the tube body of the auxiliary directional sleeve is fixed on the auxiliary directional sleeve frame.

[0008] In a preferred embodiment of this utility model, a rod guide seat is installed on the detection hole, and the height of the rod guide seat does not exceed the lower limit limit switch.

[0009] In a preferred embodiment of this utility model, a hinge joint is installed at the lower end of the lifting screw, and the lifting screw and the door panel are connected together through the hinge joint.

[0010] In a preferred embodiment of the present invention, sealing guide blocks are symmetrically installed on the box walls on both sides of the door frame. The sealing guide blocks have a guide slope on the side facing the door panel. Push plates are installed on the door panel at positions corresponding to the sealing guide blocks. Each push plate has a push head that extends to both sides and can be engaged with the corresponding guide slope.

[0011] The beneficial effects of this utility model are as follows: This utility model is a further optimization based on the existing maintenance door structure of industrial kilns. An electric control structure is added to the original manual control. Since the electric control structure can significantly improve the opening speed of the maintenance door, it can react quickly in the event of some emergencies, open the maintenance door, and improve the efficiency of emergency repairs. At the same time, this utility model also retains the manual opening function, which can be manually operated when the electric control fails, thus improving the safety of the entire system. Attached Figure Description

[0012] Figure 1 is a side view schematic diagram of the lifting structure of a preferred embodiment of the present invention;

[0013] Figure 2 is a structural schematic diagram of the door in the open state of the illustrated embodiment;

[0014] Figure 3 is a structural schematic diagram of the door in the closed state of the illustrated embodiment;

[0015] Figure 4 is an enlarged schematic diagram of the structure at point A in Figure 1;

[0016] Figure 5 is an enlarged schematic diagram of the structure at point B in Figure 1;

[0017] Figure 6 is an enlarged schematic diagram of the structure at point C in Figure 2;

[0018] The components in the attached diagram are labeled as follows:

[0019] 1. Door frame, 2. Door cover, 3. Door panel, 4. Sealing guide block, 5. Push plate, 6. Switch bracket, 7. Upper limit limit switch, 8. Lower limit limit switch, 9. Rod guide seat, 10. Auxiliary directional sleeve bracket, 11. Detection rod, 12. Lifting screw, 13. Hinge joint, 14. Handwheel, 15. Auxiliary directional sleeve, 16. Directional threaded sleeve, 17. Sealing ring, 18. Pressure cap, 19. Driven wheel, 20. Drive motor, 21. Reducer, 22. Drive wheel,

[0020] 23. Motor frame; 24. Belt. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0022] Please refer to Figures 1 to 6. The embodiments of this utility model include:

[0023] A manual / automatic maintenance door for the main pusher box of an industrial kiln, comprising: a door panel 3, a door frame 1, a door cover 2, and a door panel control mechanism; the door frame 1 is disposed in the maintenance opening of the main pusher box, the door cover 2 is installed on the box directly above the door frame 1, and the door panel control mechanism is installed on the door cover 2, capable of driving the door panel 3 to move vertically up and down between the door cover 2 and the door frame 1, completely closing or opening the maintenance opening; the door panel control mechanism includes a lifting screw 12, a drive motor 20, and a stroke control structure; the top of the door cover 2 is provided with a screw through hole, and the screw through hole contains... A sealing ring 17 is installed, and a directional threaded sleeve 16 is rotatably installed inside the sealing ring 17. The part of the directional threaded sleeve 16 above the sealing ring is sequentially fixed with a handwheel 14, a driven wheel 19, and a pressure cap 18 by a pin connection. The lifting screw 12 passes through the directional threaded sleeve 16 and is connected to the door panel 3. A motor frame 23 is also installed on the top of the door cover 2. The drive motor 20 is fixed on the motor frame 23. The power output end of the drive motor 20 is connected to the drive wheel 22 through a reducer 21. The drive wheel 22 and the driven wheel 19 are connected by a belt 24.

[0024] The stroke control structure includes a switch bracket 6, an upper limit travel switch 7, a lower limit travel switch 8, and a detection rod 11. The switch bracket 6 is fixed to the top of the door cover 2. The upper limit travel switch 7 is located on the upper part of the switch bracket 6, and the lower limit travel switch 8 is installed on the lower part of the switch bracket 6 and is electrically connected to the drive motor 20. The detection rod 11 passes through a preset detection hole on the top of the door cover 2 and enters the door cover 2 to connect with the door panel 3. A T-shaped head is provided at the top of the detection rod 11. When the door panel 3 moves upward to fully open the maintenance opening, the T-shaped head triggers the upper limit travel switch 7. When the door panel 3 moves downward to fully close the maintenance opening, the T-shaped head triggers the lower limit travel switch 8. This stroke control structure can prevent the drive motor 20 from causing the door panel 3 to move excessively beyond the preset range.

[0025] The directional threaded sleeve 16 is generally inverted T-shaped. The diameter of the lower end of the inverted T-shaped directional threaded sleeve 16 is larger than the diameter of the tube body. In this way, when the directional threaded sleeve 16 is rotated by the handwheel 14 or the drive motor 20, the sealing ring 17 can block the directional threaded sleeve 16 and prevent the directional threaded sleeve 16 from moving upward and leaving the installation position under the action of the reaction force.

[0026] An auxiliary directional sleeve 15 is also installed on the body of the lifting screw 12. The auxiliary directional sleeve 15 is installed above the directional threaded sleeve 16. An auxiliary directional sleeve bracket 10 is also installed on the door cover 2, and the body of the auxiliary directional sleeve 15 is fixed on the auxiliary directional sleeve bracket 10. By installing the auxiliary directional sleeve 15, the lifting screw 12 can be straightened, preventing the body from tilting to one side due to force, which would lead to poor up-and-down movement over time.

[0027] A rod guide seat 9 is installed on the detection hole, and the height of the rod guide seat 9 does not exceed the lower limit limit switch 8. The rod guide seat 9 ensures that the rod remains vertical when moving up and down, preventing the rod from tilting. Tilt would cause the door panel 3 to move unevenly and the limit switch to malfunction. Moreover, the height of the rod guide seat 9 must not exceed the lower limit limit switch 8, otherwise it will affect the triggering action of the lower limit limit switch 8.

[0028] A hinge joint 13 is installed at the lower end of the lifting screw 12, and the lifting screw 12 and the door panel 3 are connected together through the hinge joint 13. The hinge joint 13 is used to connect the lifting screw 12 and the door panel 3 because the hinge structure can absorb a certain amount of impact and effectively avoid damage during the transition between up and down movements due to excessive rigidity at the connection position.

[0029] A sealing guide block 4 is symmetrically installed on the box walls on both sides of the door frame 1. The sealing guide block 4 has a guide slope on the side facing the door frame 1. A push plate 5 is installed on the door panel 3 at the position corresponding to the sealing guide block 4. Each push plate 5 has a push head that extends to both sides and can be engaged with the corresponding guide slope. In this way, when the door panel 3 is falling, when the door panel 3 needs to close the maintenance opening, the push head on the push plate 5 is engaged with the corresponding guide slope. Then, under the action of gravity and the lifting screw 12, the door panel 3 is vertically downward as a whole, causing the push heads on both sides to move down along the corresponding guide slope at the same time, driving the two push plates 5 to push the door panel 3 towards the door frame 1, thereby achieving a sealing effect.

[0030] With the above structure, the maintenance door can be opened manually or electrically as needed during actual production, so that it can be opened quickly and handled promptly in case of emergency.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A manual / automatic maintenance door for the main pusher box of an industrial kiln, characterized in that, The main push box of the industrial kiln, with its manual / automatic maintenance door, includes a door panel, a door frame, a door cover, and a door panel control mechanism. The door frame is located in the maintenance opening of the main push box. The door cover is installed on the box directly above the door frame. The door panel control mechanism is installed on the door cover and can drive the door panel to move vertically up and down between the door cover and the door frame, completely closing or opening the maintenance opening. The door panel control mechanism includes a lifting screw, a drive motor, and a stroke control structure. The top of the door cover has a screw through hole, and a sealing ring is installed in the screw through hole. A directional threaded sleeve is rotatably installed in the sealing ring. A handwheel, a driven wheel, and a pressure cap are sequentially fixed on the part of the directional threaded sleeve above the sealing ring. The lifting screw passes through the directional threaded sleeve and connects to the door panel. A motor frame is also installed on the top of the door cover. The drive motor is fixed on the motor frame. The power output end of the drive motor is connected to the drive wheel through a reducer. The drive wheel and the driven wheel are connected by a belt.

2. The main push box hand-automatic maintenance door of industrial kiln according to claim 1, characterized in that, The travel control structure includes a switch bracket, an upper limit travel switch, a lower limit travel switch, and a detection rod. The switch bracket is fixed to the top of the door cover. The upper limit travel switch and the lower limit travel switch are mounted on the switch bracket and electrically connected to the drive motor, respectively. The detection rod passes through a preset detection hole on the top of the door cover and enters the door cover to connect with the door panel. A T-shaped head is provided at the top of the detection rod. When the door panel moves upward to fully open the maintenance opening, the T-shaped head triggers the upper limit travel switch. When the door panel moves downward to fully close the maintenance opening, the T-shaped head triggers the lower limit travel switch.

3. The main push box door of industrial furnace according to claim 1, characterized in that, The directional threaded sleeve is generally inverted T-shaped.

4. The main push box door of industrial furnace according to claim 1, characterized in that, An auxiliary directional sleeve is also installed on the lifting screw body. The auxiliary directional sleeve is mounted above the directional threaded sleeve. An auxiliary directional sleeve frame is also installed on the door cover. The tube body of the auxiliary directional sleeve is fixed on the auxiliary directional sleeve frame.

5. The main push box door of industrial furnace according to claim 2, characterized in that, A rod guide seat is installed on the detection hole, and the height of the rod guide seat does not exceed the lower limit limit switch.

6. The main pusher box door of an industrial furnace according to claim 1, characterized in that, The lower end of the lifting screw is equipped with a hinge joint, and the lifting screw is connected to the door panel through the hinge joint.

7. The automatic / manual maintenance door for the main pusher box of the industrial kiln according to claim 1, characterized in that, The sealing guide blocks are symmetrically installed on the box walls on both sides of the door frame. The sealing guide blocks have a guide slope on the side facing the door panel. Push plates are installed on the door panel at the positions corresponding to the sealing guide blocks. Each push plate has a push head that extends to both sides and can be engaged with the corresponding guide slope.

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