Automatic hoisting device for bell-type annealing furnace

Abstract

The application discloses a cover type annealing furnace automatic hoisting device, and belongs to the hoisting device field.The cover type annealing furnace automatic hoisting device comprises two groups of bottom rods, a support arranged on the bottom rods, and a moving wheel arranged on the bottom rods, and a hoisting mechanism arranged on the support.The cover type annealing furnace automatic hoisting device has the beneficial effects that the device can be kept in the middle part, is beneficial to subsequent movement, keeps the stability of the whole clamping device, avoids shaking and the like, and increases the stability of the device.

Description

Technical Field

[0001] This application relates to the field of hoisting equipment technology, and more specifically, to an automatic hoisting device for a bell-type annealing furnace. Background Technology

[0002] Bell-type annealing is the annealing of cold-rolled strip in a bell-type furnace in a stacked manner. Therefore, in the process of use, the material is usually placed on the base first, and then the outer and inner covers are hoisted to the middle of the base by a hoisting device. Hoisting devices are used to assist in the hoisting process.

[0003] For example, patent document CN215249114U discloses a hoisting device for an annealing furnace cover. By setting up rails on the operating side and transmission side of the annealing furnace, a frame slidably connected to the rails, a winch set on the top of the frame, and a hoisting chain for connecting the annealing furnace cover, it brings operational safety and ease of use, avoids bumps and collisions during the hoisting of the furnace cover during production line breakage or furnace roller caking maintenance, and can effectively ensure the safety, stability, and efficiency of the annealing furnace cover opening and maintenance process, improve the production line's operating rate, and enhance the equipment's operating quality.

[0004] However, in actual use, it cannot automatically position the hoisted items to keep them in the center of the device and thus ensure the stability of subsequent movement. Secondly, it cannot provide auxiliary positioning during subsequent placement, which reduces the functionality of the device. Therefore, an automatic hoisting device for bell-type annealing furnaces is needed to solve the above problems. Summary of the Invention

[0005] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0006] To address the technical problems mentioned in the background section, some embodiments of this application provide an automatic hoisting device for a bell-type annealing furnace, comprising: a base rod, provided in two sets; a bracket, provided on the base rod; a movable wheel, provided on the base rod; and a hoisting mechanism, provided on the bracket. The automatic hoisting device for the bell-type annealing furnace further comprises: the hoisting mechanism including: a movable block, each of the two sets of brackets being provided on one side close to each other, and a bidirectional threaded rod being movably connected inside the movable block via a bearing; the two sides of the bidirectional threaded rod having symmetrically distributed threads, and both sides of the two sides of the bidirectional threaded rod being threadedly connected to a first limiting block; the first limiting block engaging inside the movable block, and the movable block having a groove that cooperates with the first limiting block; and clamping blocks being fixedly connected to the bottom ends of both sets of first limiting blocks.

[0007] Furthermore, the hoisting mechanism also includes a first motor. The first motor is fixedly installed on the right side of the top of the movable block, and the output shaft of the first motor extends into the interior of the movable block. A first bevel gear is fixedly installed on the output shaft of the first motor, and a second bevel gear is fixedly connected to the right side of the outside of the bidirectional threaded rod, and the second bevel gear and the first bevel gear mesh with each other.

[0008] Furthermore, both sets of brackets are internally connected to a second threaded rod via bearings, and the second threaded rods are externally connected to a second limiting block via threads. The second limiting block engages inside the bracket, and the bracket has a slot that cooperates with the second limiting block. The ends of the two second limiting blocks that are close to each other are fixedly connected to the two ends of the movable block.

[0009] Furthermore, the top ends of both sets of second threaded rods extend to the outside of the top of the bracket. A chain wheel is fixedly installed on the upper side of the outside of the second threaded rod. The two sets of chain wheels are movably connected by a transmission chain. A second motor is fixedly installed on the top of the bracket, and the output shaft of the second motor is fixedly connected to one set of second threaded rods.

[0010] Furthermore, a positioning mechanism is provided on the base rod. The positioning mechanism includes a threaded sleeve. The threaded sleeve is movably connected to the inner middle side of the base rod through a bearing. A third threaded rod is threadedly connected inside the threaded sleeve. A positioning block is fixedly connected to the end of each of the two sets of third threaded rods that are close to each other.

[0011] Furthermore, limit rods are fixedly connected to both sides of the two sets of positioning blocks at their respective ends, with the ends of the limit rods passing through the bottom rods on both sides, and the bottom rods having grooves inside that cooperate with the limit rods.

[0012] Furthermore, both sets of bottom rods are fixedly connected to a fixing block at their rear ends, and a transmission rod is movably connected inside the fixing block via a bearing. Pulleys are fixedly connected to both sides of the transmission rod and to the outside of both sets of threaded sleeves. The two pulleys are movably connected to each other via a transmission belt. A third motor is fixedly installed on the end of each set of fixing blocks, and the output shaft of the third motor is fixedly connected to the transmission rod.

[0013] The beneficial effects of this application are as follows:

[0014] 1. The automatic hoisting device for the bell-type annealing furnace is equipped with a first limit block, a first motor, and a first bevel gear. This design allows the base rod to be moved when hoisting the inner or outer cover, so that the clamping blocks on both sides are positioned on either side of the inner or outer cover. Then, the first motor is controlled to operate, which drives the first bevel gear to rotate, causing the first limit blocks on both sides to move closer to each other. When the first limit blocks move closer to each other, they drive the clamping blocks on both sides to move closer to each other, thus completing the clamping. Then, the second motor can be controlled to operate again, causing the clamping blocks to move upward, thereby hoisting the outer or inner cover. This allows the device to remain in the middle of the device after clamping the inner or outer cover, which is conducive to subsequent movement, maintains the overall stability after clamping, and avoids shaking, thus increasing the stability of the device.

[0015] 2. This automatic hoisting device for the bell-type annealing furnace is equipped with a threaded sleeve, a third threaded rod, and positioning blocks. This design allows the outer or inner cover to be lowered when the base rod moves to the outside of the base. Then, the third motor is controlled to work, causing the third threaded rods on both sides to move inward into the threaded sleeve. As the third threaded rods move, they drive the positioning blocks to move, causing the positioning blocks on both sides to abut against the sides of the base. This automatically positions the entire device, ensuring that the center of the device coincides with the center of the base, thus completing the automatic positioning. This allows the device to automatically assist in positioning, facilitating the subsequent lowering of the outer and inner covers without requiring additional human intervention, further increasing the functionality and convenience of the device. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0017] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0018] In the attached diagram:

[0019] Figure 1 This is an overall schematic diagram based on an embodiment of this application;

[0020] Figure 2 This is a structural schematic diagram of a part of an embodiment, mainly showing the second helical rod structure;

[0021] Figure 3 This is a diagram of the internal structure of the active block;

[0022] Figure 4 yes Figure 3 Enlarged structural diagram at point A;

[0023] Figure 5 A schematic diagram of a portion of the embodiment mainly illustrates the structure of the positioning mechanism.

[0024] Figure label:

[0025] 111. Base rod; 112. Bracket; 113. Moving wheel; 2. Lifting mechanism; 211. Movable block; 212. Bidirectional threaded rod; 213. First limit stop block; 214. Clamping block; 215. First motor; 216. First bevel gear; 217. Second bevel gear; 218. Second threaded rod; 219. Second limit stop block; 220. Chain wheel; 221. Transmission chain; 222. Second motor; 3. Positioning mechanism; 311. Threaded sleeve; 312. Third threaded rod; 313. Positioning stop block; 314. Limiting rod; 315. Fixing block; 316. Transmission rod; 317. Pulley; 318. Transmission belt; 319. Third motor. Detailed Implementation

[0026] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0027] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0028] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0029] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0030] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] Reference Figure 1-5An automatic hoisting device for a bell-type annealing furnace includes: a base rod 111, of which two sets are provided. Each base rod 111 has a bracket 112 fixedly connected to its top. Two sets of base rods 111 are equipped with casters 113 on both sides of their bottom ends. A hoisting mechanism 2 is mounted on the bracket 112. The hoisting mechanism 2 includes movable blocks 211. Movable blocks 211 are provided on the side of each set of brackets 112 that are close to each other. A bidirectional threaded rod 212 is movably connected inside the movable block 211 via bearings. The bidirectional threaded rod 212 has openings on both sides of its exterior. The device has symmetrically distributed threads, and both sides of the bidirectional threaded rod 212 are threadedly connected to first limiting blocks 213. The first limiting blocks 213 are engaged inside the movable block 211, and the movable block 211 has a groove that cooperates with the first limiting blocks 213. The bottom ends of the two sets of first limiting blocks 213 are fixedly connected to clamping blocks 214. This design allows the clamping blocks 214 on both sides to move by rotating the bidirectional threaded rod 212, thereby clamping it.

[0032] The hoisting mechanism 2 also includes a first motor 215. The first motor 215 is fixedly installed on the right side of the top of the movable block 211, and the output shaft of the first motor 215 extends into the interior of the movable block 211. A first bevel gear 216 is fixedly installed on the output shaft of the first motor 215, and a second bevel gear 217 is fixedly connected to the right side of the bidirectional threaded rod 212. The second bevel gear 217 and the first bevel gear 216 mesh with each other. This design makes it easy to control the clamping block 214 to clamp and release by controlling the forward and reverse rotation of the first motor 215.

[0033] Both sets of brackets 112 are internally connected to a second threaded rod 218 via bearings, and the second threaded rod 218 is externally connected to a second limiting block 219 via threads. The second limiting block 219 engages inside the bracket 112, and the bracket 112 has a slot that cooperates with the second limiting block 219. The ends of the two second limiting blocks 219 that are close to each other are fixedly connected to the two ends of the movable block 211. This design allows the second limiting block 219 to move by rotating the second threaded rod 218, thereby driving the movable block 211 to move.

[0034] The top ends of both sets of second threaded rods 218 extend to the outside of the top of the bracket 112. Chain wheels 220 are fixedly installed on the upper side of the outside of the second threaded rods 218. The two sets of chain wheels 220 are movably connected by a transmission chain 221. A second motor 222 is fixedly installed on the top of the bracket 112, and the output shaft of the second motor 222 is fixedly connected to one set of second threaded rods 218. This design makes it easy to control the forward and reverse rotation of the second motor 222, so that the second threaded rods 218 on both sides can rotate simultaneously, thereby causing the movable block 211 to rise and fall, thus completing the lifting and lowering.

[0035] A positioning mechanism 3 is provided on the base rod 111. The positioning mechanism 3 includes a threaded sleeve 311. The threaded sleeve 311 is movably connected to the inner middle side of the base rod 111 through a bearing. The threaded sleeve 311 is connected to a third threaded rod 312 through a thread. A positioning block 313 is fixedly connected to the end of each of the two sets of third threaded rods 312 that are close to each other. This design makes it easy to move the third threaded rod 312 and the positioning block 313 by rotating the threaded sleeve 311, thereby assisting in the positioning of the entire device.

[0036] Two sets of positioning blocks 313 are fixedly connected to two sides of each other at one end. The ends of the two positioning blocks 314 at the opposite ends pass through the bottom rods 111 on both sides. The bottom rods 111 have slots that cooperate with the positioning blocks 314. This design makes it easy to use the positioning blocks 313 to be assisted in positioning by the positioning blocks 314, so that the threaded sleeve 311 can drive the positioning blocks 313 to move when it rotates.

[0037] Both sets of base rods 111 are fixedly connected to the rear ends of fixed blocks 315, and the fixed blocks 315 are movably connected to the transmission rods 316 through bearings. The transmission rods 316 and the two sets of threaded sleeves 311 are fixedly connected to the outer sides of both sides of the transmission rods 316 and the outer sides of both sets of threaded sleeves 311. The two sets of threaded sleeves 317 are movably connected to each other through transmission belts 318. A third motor 319 is fixedly installed on the end of each set of fixed blocks 315, and the output shaft of the third motor 319 is fixedly connected to the transmission rod 316. This design makes it easy for the threaded sleeves 311 on both sides to rotate synchronously through the third motor 319, so that the positioning blocks 313 can move synchronously, which is beneficial for positioning.

[0038] Working principle: When the inner or outer cover needs to be hoisted, the base rod 111 can be moved so that the clamping blocks 214 on both sides of the inner or outer cover are positioned on both sides. Then, the first motor 215 is controlled to work. When the first motor 215 works, it drives the first bevel gear 216 to rotate, which in turn drives the second bevel gear 217 to rotate. When the second bevel gear 217 rotates, it drives the bidirectional threaded rod 212 to rotate. When the bidirectional threaded rod 212 rotates, since the threads on both sides of the bidirectional threaded rod 212 rotate in opposite directions, and the first limiting block 213 is engaged inside the movable block 211, the first limiting block 213 cannot rotate. This causes the first limiting blocks 213 on both sides to move closer to each other. When the first limiting blocks 213 move closer to each other, they drive the clamping blocks 214 on both sides to move closer to each other. Then, the clamping blocks 214 on both sides are respectively attached to the sides of the inner or outer cover, thus completing the clamping.

[0039] The second motor 222 can then be controlled to operate again. When the second motor 222 operates, it will drive a set of second threaded rods 218 to operate. When one set of second threaded rods 218 rotates, it will drive another set of second threaded rods 218 to rotate through the chain wheel 220 and the transmission chain 221, so that the two sets of second threaded rods 218 rotate simultaneously. When the two sets of second threaded rods 218 rotate, the second limit block 219 is threadedly connected to the second threaded rod 218 and cannot rotate, which causes the second limit blocks 219 on both sides to move upward. When the second limit blocks 219 move upward, they will drive the movable block 211 to move upward, which will cause the clamping block 214 to move upward, thereby lifting the outer cover or inner cover.

[0040] When it is necessary to lower the outer or inner cover of the hoisting structure, the base rod 111 can be moved to the outside of the base, and then the third motor 319 can be controlled to work. When the third motor 319 works, it will drive the transmission rod 316 to rotate. When the transmission rod 316 rotates, it will drive the threaded sleeve 311 to rotate through the pulleys 317 on both sides and the transmission belt 318. When the threaded sleeve 311 rotates, the third threaded rod 312 is threadedly connected to the threaded sleeve 311, and the positioning block 313 is limited by the limiting rod 314, thereby making the positioning block 313 more stable. The abutment 313 and the third threaded rod 312 cannot rotate, causing the third threaded rods 312 on both sides to move into the threaded sleeve 311. When the third threaded rods 312 on both sides move, they will drive the positioning abutment 313 to move, thereby causing the positioning abutment 313 on both sides to abut against the two sides of the base respectively. Since the positioning abutment 313 on both sides moves synchronously, the entire device can be automatically positioned, so that the center position of the entire device coincides with the center position of the base, thereby completing the automatic positioning.

[0041] Then, by controlling the second motor 222 and the first motor 215 to reverse, the outer or inner cover can be lowered to complete the hoisting operation.

[0042] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. An automatic hoisting device for a bell-type annealing furnace, comprising: The base rod has two sets; The bracket is mounted on the base rod; The movable wheels are mounted on the base rod; The hoisting mechanism is mounted on the support frame; Its features are: The automatic hoisting device for the bell-type annealing furnace also includes: The hoisting mechanism includes: a movable block, with movable blocks provided on one side of each of the two sets of brackets that are close to each other, and a bidirectional threaded rod movably connected inside the movable block via a bearing, the two sides of the bidirectional threaded rod having symmetrically distributed threads, and a first limiting block connected to the two sides of the bidirectional threaded rod via threads, the first limiting block engaging inside the movable block, and the movable block having a groove that engages with the first limiting block inside, and a clamping block fixedly connected to the bottom end of each of the two sets of first limiting blocks; The hoisting mechanism also includes a first motor. The first motor is fixedly installed on the right side of the top of the movable block, and the output shaft of the first motor extends into the interior of the movable block. A first bevel gear is fixedly installed on the output shaft of the first motor, and a second bevel gear is fixedly connected to the right side of the outside of the bidirectional threaded rod, and the second bevel gear and the first bevel gear mesh with each other. Both sets of brackets are internally connected to a second threaded rod via bearings, and the external parts of the second threaded rods are externally connected to a second limiting block via threads. The second limiting block engages inside the bracket, and the bracket has a slot that mates with the second limiting block. The ends of the two second limiting blocks that are close to each other are fixedly connected to the two ends of the movable block. The bottom rod is provided with a positioning mechanism, which includes a threaded sleeve. The middle side of the bottom rod is internally connected to a threaded sleeve via bearings, and the threaded sleeve is internally connected to a third threaded rod via threads. The ends of the two sets of third threaded rods that are close to each other are fixedly connected to a positioning stop.

2. The automatic hoisting device for the bell-type annealing furnace according to claim 1, characterized in that: Both sets of the second threaded rods extend to the outside of the top of the bracket. A chain wheel is fixedly installed on the upper side of the outside of the second threaded rod. The two sets of chain wheels are movably connected by a transmission chain. A second motor is fixedly installed on the top of the bracket, and the output shaft of the second motor is fixedly connected to one set of the second threaded rods.

3. The automatic hoisting device for the bell-type annealing furnace according to claim 1, characterized in that: Both sets of positioning blocks are fixedly connected to limit rods on both sides of the opposite end. The opposite ends of the limit rods on both sides pass through the bottom rods on both sides, and the bottom rods have slots inside that cooperate with the limit rods.

4. The automatic hoisting device for the bell-type annealing furnace according to claim 1, characterized in that: Both sets of base rods are fixedly connected to a fixing block at their rear ends, and a transmission rod is movably connected inside the fixing block via a bearing. Pulleys are fixedly connected to both sides of the transmission rod and to the outside of the two sets of threaded sleeves. The two pulleys are movably connected to each other via a transmission belt. A third motor is fixedly installed on the end of each set of fixing blocks, and the output shaft of the third motor is fixedly connected to the transmission rod.

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