Device for ensuring safety maintenance of rotary kiln

Abstract

The invention relates to a device for ensuring the safety maintenance of a rotary kiln, which comprises a rotary kiln, a rotary kiln gear ring, a rotary kiln gear ring, a rotary kiln gear ring, a rotary kiln gear ring and a rotary kiln gear ring gear ring, the locking mechanism comprises a gear box, a lead screw sliding block mechanism, a rotating hand wheel and a locking ejector rod; wherein a steering gear set and a transmission gear set are arranged in the gearbox, a rotating hand wheel is connected to a rotating shaft of a transmission gear, one end of a rotating shaft of a steering gear is connected with a lead screw of a lead screw sliding block mechanism, a locking ejector rod is connected to a sliding block of the lead screw sliding block mechanism, and gear teeth meshed with a gear ring of the rotary furnace kiln are arranged at one end of the locking ejector rod; the rotating hand wheel is shaken to drive a lead screw of the lead screw sliding block mechanism to rotate through a transmission gear and a steering gear in the gear box, so that a sliding block drives a locking ejector rod to stretch out to abut against a rotary kiln gear ring; on the basis of the original electric band-type brake locking kiln, a pure mechanical locking is added, so that the danger caused by the failure of an electric system or the slipping failure of the band-type brake is reduced.

Description

Technical Field

[0001] This application relates to the field of furnace and kiln equipment technology, and in particular to a device for ensuring safe maintenance of rotary furnaces and kilns. Background Technology

[0002] During shutdown and maintenance of rotary kilns, the existing brakes are typically used to lock the kiln and prevent it from rotating. After locking and tagged the control cabinet, maintenance personnel can then enter the kiln for repairs. However, electrical equipment cannot be 100% safe and reliable. If the electrical system malfunctions or the brake slips and fails, it will pose a significant threat to the safety of maintenance personnel inside the kiln. Summary of the Invention

[0003] To address or partially address the problems existing in related technologies, this application provides a device for ensuring safe maintenance of rotary kilns. This device adds a purely mechanical locking mechanism to the existing electric brake locking mechanism, reducing the dangers caused by electrical system failures or brake slippage.

[0004] This application discloses a device for ensuring safe maintenance of rotary kilns, comprising: A rotary kiln, wherein one end of the kiln is constructed with a rotary kiln toothed ring; and The locking mechanism includes a gearbox, a lead screw and slider mechanism, a rotating handwheel, and a locking rod. The gearbox contains a steering and transmission gear set, and a rotating handwheel is connected to the shaft of the transmission gear. One end of the rotating shaft of the steering gear is connected to the lead screw of the lead screw and slider mechanism. A locking rod is connected to the slider of the lead screw and slider mechanism, and one end of the locking rod has teeth that mesh with the rotary furnace gear ring. By turning the rotating handwheel, the lead screw of the lead screw and slider mechanism is driven to rotate through the transmission gear and steering gear in the gearbox, which causes the slider to drive the locking rod to extend and hold the rotary furnace gear ring.

[0005] Optionally, the gears in the gearbox include a first bevel gear, a second bevel gear, a large spur gear, and a small spur gear; The small spur gear's shaft extends out of the gearbox and connects to the rotating handwheel; the large spur gear and the second bevel gear are connected and fixed on the same shaft, and the large spur gear meshes with the small spur gear for transmission; the first bevel gear's shaft extends out of the gearbox and connects to the transmission screw of the lead screw and slider mechanism, and the first bevel gear and the second bevel gear mesh for transmission.

[0006] Optionally, a locking pin is provided on the outside of the gearbox, which slides into the rotating handwheel to limit the rotation of the handwheel.

[0007] Optionally, a rotating slider is provided at one end of the guide rail seat of the lead screw slider mechanism. The center of the rotating slider has a through hole, and the locking rod slides in the through hole.

[0008] Optionally, the locking rod is connected to the slider of the lead screw and slider mechanism.

[0009] Optionally, the locking rod is fixedly mounted on the slider of the lead screw and slider mechanism and is parallel to the lead screw axis of the lead screw and slider mechanism.

[0010] Optionally, an arc-shaped gear rack is provided at one end of the locking rod, which meshes with the rotary kiln gear ring and is located in the lower middle part of the rotary kiln gear ring.

[0011] Optionally, a spur gear rack is provided at one end of the locking rod, which meshes with the rotary kiln gear ring and is located at the bottom of the rotary kiln gear ring.

[0012] Optionally, a rotary kiln support roller is provided on one side of the rotary kiln, and a pad is provided at the rotary kiln support roller, which is located below the arc-shaped gear rack or spur gear rack.

[0013] Optionally, the locking pin is equipped with a latch.

[0014] The technical solution provided in this application may include the following beneficial effects: This device transmits power to the locking rod by the operator turning a handwheel. Power passes through gears and a lead screw in the gearbox, and is then transmitted to the locking rod. Three teeth on the locking rod engage with the rotary kiln's gear ring, ultimately locking the rotary kiln and preventing it from rotating. This application adds a purely mechanical locking mechanism to the existing electric brake-locked kiln system, significantly reducing the risks associated with electrical system failures or brake slippage.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0016] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0017] Figure 1 This is a schematic diagram illustrating the structure during use as shown in the embodiments of this application; Figure 2 This is a side view of the device in use as shown in an embodiment of this application; Figure 3 This is a schematic diagram of the structure shown in the embodiments of this application; Figure 4 This is a schematic diagram of the internal structure of the gearbox shown in an embodiment of this application; Figure 5 This is a schematic diagram of the locking connection of the arc-shaped rack shown in the embodiments of this application; Figure 6 This is a schematic diagram of the locking connection of a straight rack and pinion as shown in an embodiment of this application; Figure label: 1. Rotary furnace; 2. Rotary furnace gear ring; 3. Locking mechanism; 4. Rotary furnace support roller; 5. Gearbox; 6. Drive screw; 7. Rotating slider; 8. Locking top rod; 9. Rotating handwheel; 10. First bevel gear; 11. Second bevel gear; 12. Large spur gear; 13. Small spur gear; 14. Locking pin. Detailed Implementation

[0018] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0019] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0020] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "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 application and simplifying the description, 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 application.

[0021] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] To address the aforementioned problems, this application provides a device for ensuring safe maintenance of rotary kilns. The technical solution of this application embodiment is described in detail below with reference to the accompanying drawings.

[0023] like Figure 1 , Figure 2 and, Figure 3 and Figure 4 The device shown here ensures safe maintenance of rotary kilns and includes: Rotary furnace 1, one end of which is constructed with a rotary furnace toothed ring 2; and Locking mechanism 3 includes gearbox 5, lead screw and slider mechanism, rotating handwheel 9 and locking rod 8; Among them, a steering and transmission gear set is provided in the gearbox 5, and the gears in the gearbox 5 include a first bevel gear 10, a second bevel gear 11, a large spur gear 12, and a small spur gear 13; The small spur gear 13 extends from the gearbox 5 and connects to the rotating handwheel 9. The large spur gear 12 and the second bevel gear 11 are connected and fixed on the same rotating shaft, and the large spur gear 12 meshes with the small spur gear 13 for transmission. The rotating shaft of the first bevel gear 10 extends from the gearbox 5 and connects to the transmission screw 6 of the screw-slider mechanism, and the first bevel gear 10 and the second bevel gear 11 mesh for transmission. The screw of the screw-slider mechanism is connected to one end of the rotating shaft of the steering gear. A locking rod 8 is connected to the slider of the screw-slider mechanism. A rotating slider 7 is rotatably connected to one end of the guide rail seat of the screw-slider mechanism. The rotating slider 7 has a through hole in its center, and the locking rod 8 slides in the through hole. One end of the locking rod 8 is provided with gear teeth that mesh with the rotary furnace gear ring 2. By turning the rotating handwheel 9, the transmission gear and steering gear in the gearbox 5 drive the screw of the screw-slider mechanism to rotate, causing the slider to drive the locking rod 8 to extend and hold the rotary furnace gear ring 2.

[0024] Thus, in this application, the power input to the transmission gear is generated by manually cranking the handwheel 9. Turning the handwheel 9 drives the transmission gear and steering gear in the gearbox, which in turn drives the lead screw of the lead screw-slider mechanism to rotate, causing the slider to extend the locking rod 8 to press against the rotary furnace gear ring 2. During this process, the force of the rotating pair is converted into the force of the moving pair through the lead screw drive, achieving contact locking or unlocking with the rotary furnace gear ring. The lead screw drive has a self-locking function; the force applied to the device by the rotary furnace cannot cause it to move, ensuring safety. Furthermore, the lead screw drive ratio is accurate. The bevel gear meshing achieves a 90° rotation of the drive mechanism, preventing the splashing of harmful substances along the tangential direction after the anode furnace rotates, thus avoiding injury to operators. It also saves space, as the anode furnace installation end face space is typically large, with the axial direction being the feeding direction. Figure 1 As shown, the operator releases the device by turning the handwheel. If the rotary furnace rotates, dust and other harmful substances adhering to the furnace wall during maintenance will splash out, with the splash direction along the tangential direction of the furnace body. The bevel gears in the gearbox mesh and drive the operator's position, thus mitigating the risk. The small gear driving the large gear saves effort and reduces speed.

[0025] In this application, the operator cranks the handwheel 9, and the power is transmitted sequentially through the gears and transmission screw in the gearbox to the locking rod 8. The three teeth on the locking rod 8 mesh with the rotary furnace gear ring 2, ultimately locking the rotary furnace and preventing it from rotating. This application adds a purely mechanical locking mechanism to the existing electric brake locking mechanism, greatly reducing the dangers caused by electrical system failures or brake slippage.

[0026] In one embodiment, such as Figure 4 As shown, to further restrict the release of the locking rod 8, a locking pin 14 is connected to the outside of the gearbox 5. The locking pin 14 is slidably inserted into the rotating handwheel 9 to limit the rotation of the handwheel 9. At the same time, a latch is provided on the locking pin 14 to prevent accidental shaking of the rotating handwheel 9.

[0027] In one embodiment, to facilitate the extension of the locking rod 8, a rotating slider 7 is provided at one end of the guide rail seat of the screw-slider mechanism. The rotating slider 7 has a through hole in its center, and the locking rod 8 slides in the through hole, thus being connected to the slider of the screw-slider mechanism. In this way, the three gears at one end of the locking rod 8 can be aligned with the center of the rotary furnace gear ring 2 when extended to engage with the gears.

[0028] In one embodiment, the locking rod 8 is prone to forming a long lever arm, which makes it easy for the locking rod 8 to bend under force. Therefore, as Figure 5As shown, in this application, the locking top rod 8 is fixedly mounted on the slider of the screw-slider mechanism and parallel to the screw axis of the screw-slider mechanism. One end of the locking top rod 8 is equipped with an arc-shaped gear rack, which meshes with the rotary furnace gear ring 2 and is located in the lower middle part of the rotary furnace gear ring 2. A rotary furnace support roller 4 is provided on one side of the rotary furnace 1, and a pad 15 is provided at the rotary furnace support roller 4, located below the arc-shaped gear rack. Thus, since the locking top rod 8 is parallel to the screw axis and only extends or retracts in a straight line, the lever arm of the locking top rod 8 can be shortened as much as possible according to the specific position of the rotary furnace gear ring 2. At the same time, the number of meshing teeth with the rotary furnace gear ring 2 is increased, thereby increasing the locking strength and preventing tooth breakage. At the same time, even if the locking rod 8 is bent under force, its bottom is easily held in place by the pad 15, thereby further shortening the lever arm and maintaining the locking strength as much as possible.

[0029] In one example, another solution to shorten the locking lever arm by 8 and enhance locking strength is as follows: Figure 6 As shown, a spur gear rack is installed at one end of the locking top rod 8. This spur gear rack meshes with the rotary kiln gear ring 2 and is located at the bottom of the rotary kiln gear ring 2. A rotary kiln support roller 4 is installed on one side of the rotary kiln 1, and a pad block 15 is installed at the rotary kiln support roller 4, below the spur gear rack. In this way, the lever arm of the locking top rod 8 can be shortened to the maximum extent.

[0030] Finally, it should be noted that in this document, relationships such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "include," "contain," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0031] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0032] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A device for ensuring safe maintenance of rotary kilns, characterized in that, include: A rotary kiln (1), wherein one end of the rotary kiln (1) is constructed with a rotary kiln gear ring (2); and The locking mechanism (3) includes a gearbox (5), a lead screw and slider mechanism, a rotating handwheel (9), and a locking rod (8). Among them, a steering and transmission gear set is set in the gearbox (5), and a rotating handwheel (9) is connected to the rotating shaft of the transmission gear. The screw of the screw-slider mechanism is connected to one end of the rotating shaft of the steering gear. A locking rod (8) is connected to the slider of the screw-slider mechanism. One end of the locking rod (8) is provided with gear teeth that mesh with the rotary furnace gear ring (2). The rotating handwheel (9) is turned to drive the screw of the screw-slider mechanism to rotate through the transmission gear and steering gear in the gearbox (5), so that the slider drives the locking rod (8) to extend and hold the rotary furnace gear ring (2).

2. The device for ensuring safe maintenance of rotary kilns according to claim 1, characterized in that: The gears in the gearbox (5) include a first bevel gear (10), a second bevel gear (11), a large spur gear (12), and a small spur gear (13). The small spur gear (13) has its shaft extending out of the gearbox (5) and connected to the rotating handwheel (9); the large spur gear (12) and the second bevel gear (11) are connected and fixed on the same shaft, and the large spur gear (12) meshes with the small spur gear (13); the shaft of the first bevel gear (10) extends out of the gearbox (5) and is connected to the transmission screw (6) of the lead screw and slider mechanism, and the first bevel gear (10) meshes with the second bevel gear (11).

3. A device for ensuring safe maintenance of rotary kilns according to claim 1 or 2, characterized in that: A locking pin (14) is provided on the outside of the gearbox (5). The locking pin (14) is slidably inserted into the rotating handwheel (9) to limit the rotation of the handwheel (9).

4. A device for ensuring safe maintenance of rotary kilns according to claim 1 or 2, characterized in that: A rotating slider (7) is connected to one end of the guide rail seat of the screw slider mechanism. The rotating slider (7) has a through hole in the center, and the locking rod (8) slides in the through hole.

5. The device for ensuring safe maintenance of rotary kilns according to claim 4, characterized in that: The locking rod (8) is connected to the slider of the lead screw and slider mechanism.

6. The device for ensuring safe maintenance of rotary kilns according to claim 4, characterized in that: The locking rod (8) is fixedly mounted on the slider of the lead screw and slider mechanism and is parallel to the lead screw axis of the lead screw and slider mechanism.

7. The device for ensuring safe maintenance of rotary kilns according to claim 6, characterized in that: One end of the locking rod (8) is provided with an arc-shaped gear rack, which meshes with the rotary furnace gear ring (2) and is located in the lower middle part of the rotary furnace gear ring (2).

8. The device for ensuring safe maintenance of rotary kilns according to claim 6, characterized in that: One end of the locking rod (8) is provided with a spur gear rack, which meshes with the rotary furnace gear ring (2) and is located at the bottom of the rotary furnace gear ring (2).

9. The device for ensuring safe maintenance of rotary kilns according to claim 1, characterized in that: A rotary kiln support roller (4) is provided on one side of the rotary kiln (1), and a pad (15) is provided at the rotary kiln support roller (4), which is located below the arc-shaped gear rack or spur gear rack.

10. The device for ensuring safe maintenance of rotary kilns according to claim 3, characterized in that: The locking pin (14) is provided with a buckle.

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