Safe opening and closing device for still kettle door and still kettle comprising safe opening and closing device

Abstract

The invention discloses a safe opening and closing device for a still kettle door and a still kettle comprising the safe opening and closing device, and relates to the technical field of still kettles.The safe opening and closing device for the still kettle door comprises a rotating toothed plate, a rotating gear, a gear driving device and a control device, the gear driving device is installed on a still kettle body, the rotating gear is fixed to an output shaft of the gear driving device, the gear driving device is used for driving the rotating gear to rotate, the rotating toothed plate is meshed with the rotating gear, and the gear driving device is electrically connected with the control device. The still kettle comprises a still kettle body, a still kettle door and the still kettle door safety opening and closing device. Opening and closing of the still kettle door can be achieved only by using the gear driving device to drive the rotating gear and the rotating toothed plate to rotate, manual participation of workers is not needed for opening and closing of the still kettle door, therefore, the labor intensity of the workers is reduced, and the overall manufacturing and using cost of the device is low.

Description

Technical Field

[0001] This invention relates to the field of autoclave technology, and in particular to an autoclave door safety opening and closing device and an autoclave including the device. Background Technology

[0002] An autoclave, also known as a steam curing autoclave or pressure autoclave, is a large, heavy pressure vessel. Autoclaves have a wide range of applications, widely used for the steam curing of building materials such as aerated concrete blocks, concrete pipe piles, sand-lime bricks, fly ash bricks, microporous calcium silicate boards, new lightweight wall materials, thermal insulation asbestos boards, and high-strength gypsum. They are also widely applicable to production projects requiring pressure steam curing processes in industries such as rubber products, pharmaceuticals, aerospace, insulation materials, textiles, and military applications.

[0003] During actual operation, autoclave doors need to be constantly opened and closed. Previously, these doors were manually operated, requiring manual dragging and pressing. This method was labor-intensive and posed numerous safety hazards. With technological advancements, autoclave doors are now opened and closed using hydraulic devices. The extension and retraction of hydraulic cylinders converts this into door operation. While this hydraulic method avoids the need for extensive manual labor, it significantly increases the number of hydraulic oil stations, leading to higher maintenance costs.

[0004] Therefore, there is an urgent need in the field for a safe opening and closing device for an autoclave door and an autoclave including the device, to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a safe opening and closing device for an autoclave door and an autoclave including the device, so as to solve the problems existing in the prior art, reduce the labor intensity of workers, and reduce the manufacturing and use costs.

[0006] To achieve the above objectives, the present invention provides the following solution: This invention discloses a safety opening and closing device for an autoclave door, comprising a rotating toothed plate, a rotating gear, a gear drive device, and a control device. The rotating toothed plate is fixed on the rotating shaft of the autoclave, the gear drive device is mounted on the autoclave body, the rotating gear is fixed on the output shaft of the gear drive device, the gear drive device is used to drive the rotating gear to rotate, the rotating toothed plate and the rotating gear mesh, and the gear drive device and the control device are electrically connected.

[0007] Preferably, the gear drive device includes a drive motor and a reducer, the output shaft of the drive motor is connected to the input shaft of the reducer, and the rotating gear is fixed on the output shaft of the reducer.

[0008] Preferably, the drive motor is a servo motor with a rotational speed of 1450 rpm, the motor power of the drive motor is 1.1 kW, and the reduction ratio of the reducer is 450:1.

[0009] Preferably, the rotating toothed plate has a fan-shaped structure.

[0010] Preferably, the central angle of the rotating toothed plate is 120°, and the radius of the rotating toothed plate is 0.5m.

[0011] Preferably, the control device is a single-chip microcomputer controller.

[0012] This invention discloses an autoclave, including an autoclave door safety opening and closing device, and also includes the autoclave body and the autoclave door; The autoclave shaft is rotatably connected to the autoclave body, and the autoclave shaft is fixedly connected to the autoclave rotating arm. One end of the autoclave rotating arm is fixedly connected to the autoclave door.

[0013] Preferably, a counterweight is fixed at the end of the autoclave rotating arm away from the autoclave door.

[0014] Preferably, the counterweight has a weight of 2.2t and the autoclave door has a weight of 1.9t.

[0015] Preferably, a limit switch is fixed on the autoclave body, and the limit switch is electrically connected to the control device.

[0016] The present invention achieves the following technical effects compared to the prior art: This invention comprises a rotating gear plate, a rotating gear, and a gear drive device. When the gear drive device drives the rotating gear to rotate, the rotating gear drives the rotating gear plate to rotate, which in turn drives the autoclave shaft to rotate, thereby controlling the opening and closing of the autoclave door. The entire device has a simple structure, thus reducing the overall manufacturing cost of the equipment. Furthermore, it is easy to operate, facilitating mechanical automation and remote operation by workers. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the autoclave door safety opening and closing device in Example 1; Figure 2 This is a schematic diagram of the autoclave in Example 2; In the diagram: 1-Rotating toothed plate; 2-Rotating gear; 3-Gear drive device; 4-Autoclave shaft; 5-Autoclave body; 6-Autoclave door; 7-Autoclave rotating arm; 8-Counterweight. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] The purpose of this invention is to provide a safe opening and closing device for an autoclave door and an autoclave including the device, so as to solve the problems existing in the prior art, reduce the labor intensity of workers, and reduce the manufacturing and use costs.

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1 like Figure 1 As shown, this embodiment provides a safety opening and closing device for an autoclave door, including a rotating gear plate 1, a rotating gear 2, a gear drive device 3, and a control device. The rotating gear plate 1 is fixed to the autoclave shaft 4, and the rotating gear plate 1 and the autoclave shaft 4 can be connected by welding or bolts. The gear drive device 3 is mounted on the autoclave body 5, and the rotating gear 2 is fixed to the output shaft of the gear drive device 3. When the gear drive device 3 is turned on, it drives the rotating gear 2 to rotate. The rotating gear plate 1 and the rotating gear 2 mesh, so when the rotating gear 2 rotates, it drives the rotating gear plate 1 to rotate. The gear drive device 3 and the control device are electrically connected, and the operator can remotely control the gear drive device 3 through the control device.

[0023] In actual use, operators remotely control the gear drive device 3 via a control unit. When the gear drive device 3 is activated, its output shaft drives the rotating gear 2 to rotate. Since the rotating gear 2 meshes with the rotating gear plate 1, its rotation drives the rotating gear plate 1. Finally, the rotating gear plate 1 drives the autoclave shaft 4 to rotate, which in turn opens or closes the autoclave door 6. The entire process eliminates the need for manual operation of the autoclave door 6, reducing the workload of operators. Furthermore, the structure is simple, and the manufacturing and subsequent operating costs are low.

[0024] In this embodiment, the gear drive device 3 includes a drive motor and a reducer. The drive motor is mounted on a motor support on the autoclave body 5. The output shaft of the drive motor is connected to the input shaft of the reducer. The rotating gear 2 is fixed on the output shaft of the reducer. The drive motor is electrically connected to the control device.

[0025] When the control device controls the drive motor to run, the output shaft of the drive motor is connected to the input shaft of the reducer and drives it to rotate. The reducer adjusts the speed transmitted from the drive motor, and finally the output shaft of the reducer drives the rotating gear 2 to rotate.

[0026] In this embodiment, the drive motor is an existing servo motor with a rotational speed of 1450 rpm, a motor power of 1.1 kW, and a reduction ratio of 450:1 for the reducer. Of course, those skilled in the art can also select other models of servo motors as drive motors according to actual needs, as long as they can meet the power requirements of the autoclave door 6.

[0027] In this embodiment, the rotating toothed plate 1 has a fan-shaped structure, and multiple teeth are spaced apart on the arc-shaped part of the fan-shaped rotating toothed plate 1.

[0028] In this embodiment, the central angle of the rotating toothed plate 1 is 120°, the center of the rotating toothed plate 1 coincides with the axis of the autoclave rotating shaft 4, and the radius of the rotating toothed plate 1 is 0.5m. Those skilled in the art can also adjust the specific dimensions of the central angle and radius of the rotating toothed plate 1 according to actual needs, and are not limited to this one.

[0029] In this embodiment, since the overall structure of the device is simple and the control logic is relatively simple, a common single-chip microcomputer controller can be used for the control device.

[0030] Example 2 like Figure 2 As shown, this embodiment provides an autoclave, including the autoclave door safety opening and closing device disclosed in Embodiment 1, and also includes an autoclave body 5 and an autoclave door 6.

[0031] The autoclave shaft 4 is rotatably connected to the upper end of the autoclave body 5. Specifically, two bearing seats are fixed to the upper end of the autoclave body 5 by bolts, and the two ends of the autoclave shaft 4 are rotatably connected to the two bearing seats respectively. The autoclave rotating arm 7 is welded and fixedly connected to the autoclave shaft 4, and one end of the autoclave rotating arm 7 is fixedly connected to the autoclave door 6 by bolts.

[0032] In actual use, after starting the gear drive device 3, the gear drive device 3 will drive the autoclave rotating shaft 4 to rotate, and the autoclave rotating shaft 4 will rotate the autoclave door 6 through the autoclave rotating arm 7, thereby realizing the opening or closing of the autoclave door 6.

[0033] In this embodiment, a counterweight 8 is fixed at the end of the autoclave rotating arm 7 away from the autoclave door 6. The counterweight 8 can be used to adjust the balance of the autoclave rotating arm 7 and improve the stability of the autoclave rotating arm 7.

[0034] In this embodiment, the weight of the counterweight 8 is 2.2t, the weight of the autoclave door 6 is 1.9t, the length of the autoclave rotating arm 7 is 3.45m, the center distance of the autoclave door 6 from the axis of the autoclave rotating shaft 4 is 1.65m, and the center distance of the counterweight 8 from the axis of the autoclave rotating shaft 4 is 1.8m. It is concluded that the torque required to open the autoclave door 6 is more than 8000N·m. In actual design, a safety factor of 1.5 needs to be added. The required design torque for the autoclave door 6 is 8000Nm×1.5=12000N·m.

[0035] In this embodiment, a limit switch is fixed on the autoclave body 5, and the limit switch is electrically connected to the control device. Specifically, two limit switches can be provided, which can be existing limit switches, and the two limit switches are distributed vertically. In actual use, when the autoclave door 6 is in the open state, the end of the autoclave rotating arm 7 away from the autoclave door 6 moves downward until it contacts the lower limit switch. At this time, the lower limit switch transmits a monitoring signal to the control device, and the control device controls the drive motor to stop, thereby keeping the autoclave door 6 stationary. When the autoclave door 6 changes from the open state to the closed state, the end of the autoclave rotating arm 7 away from the autoclave door 6 moves upward until it contacts the upper limit switch. At this time, the upper limit switch transmits a monitoring signal to the control device, and the control device controls the drive motor to stop, thereby keeping the autoclave door 6 stationary.

[0036] In the description of this invention, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this invention, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] If this invention discloses or relates to components or structural parts that are fixedly connected to each other, then, unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws) or a non-detachable fixed connection (e.g., riveting, welding). Of course, a fixed connection can also be replaced by an integral structure (e.g., manufactured in one piece using a casting process) (except where it is obviously impossible to use an integral molding process).

[0039] In addition, unless otherwise stated, the terms used in any of the technical solutions disclosed in this invention to indicate positional relationships or shapes include states or shapes that are similar to, close to, or approximate with those states or shapes.

[0040] Any component provided by this invention can be assembled from multiple individual components or can be a single component manufactured by a one-piece molding process.

[0041] It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings of this specification are only used to complement the content disclosed in the specification, so as to enable those skilled in the art to understand and read them, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0042] It should also be noted that in the embodiments of this application, the same reference numerals are used to denote the same component or the same part.

[0043] Any adaptive changes made according to actual needs are within the scope of protection of this invention.

[0044] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A safety opening and closing device for an autoclave door, characterized in that: The device includes a rotating toothed plate (1), a rotating gear (2), a gear drive device (3), and a control device. The rotating toothed plate (1) is fixed on the rotating shaft (4) of the autoclave. The gear drive device (3) is installed on the autoclave body (5). The rotating gear (2) is fixed on the output shaft of the gear drive device (3). The gear drive device (3) is used to drive the rotating gear (2) to rotate. The rotating toothed plate (1) and the rotating gear (2) mesh. The gear drive device (3) and the control device are electrically connected.

2. The autoclave door safety opening and closing device according to claim 1, characterized in that: The gear drive device (3) includes a drive motor and a reducer. The output shaft of the drive motor is connected to the input shaft of the reducer, and the rotating gear (2) is fixed on the output shaft of the reducer.

3. The autoclave door safety opening and closing device according to claim 2, characterized in that: The drive motor is a servo motor with a rotational speed of 1450 rpm, the motor power of the drive motor is 1.1 kW, and the reduction ratio of the reducer is 450:

1.

4. The autoclave door safety opening and closing device according to claim 1, characterized in that: The rotating toothed plate (1) has a fan-shaped structure.

5. The autoclave door safety opening and closing device according to claim 1, characterized in that: The central angle of the rotating toothed plate (1) is 120°, and the radius of the rotating toothed plate (1) is 0.5m.

6. The autoclave door safety opening and closing device according to claim 1, characterized in that: The control device is a single-chip microcomputer controller.

7. An autoclave, characterized in that: The autoclave door safety opening and closing device according to any one of claims 1-6 further includes the autoclave body (5) and the autoclave door (6). The autoclave rotating shaft (4) is rotatably connected to the autoclave body (5), and the autoclave rotating arm (7) is fixedly connected to the autoclave rotating shaft (4). One end of the autoclave rotating arm (7) is fixedly connected to the autoclave door (6).

8. The autoclave according to claim 7, characterized in that: A counterweight (8) is fixed at the end of the autoclave rotating arm (7) away from the autoclave door (6).

9. The autoclave according to claim 8, characterized in that: The counterweight (8) weighs 2.2t, and the autoclave door (6) weighs 1.9t.

10. The autoclave according to claim 7, characterized in that: A limit switch is fixed on the autoclave body (5), and the limit switch is electrically connected to the control device.

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