Chain anti-deviation structure for elevator
By designing protective and limiting mechanisms on the hoist to constrain chain swaying, the problem of chain deviation and detachment during start-up, shutdown, or speed change was solved, thus achieving stable operation of the hoist and continuous production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN HENGTENGDA AUTOMATION EQUIP CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-04-21
AI Technical Summary
During start-up, shutdown, or speed change, the elevator chain is prone to lateral swaying due to inertial force, uneven load, or vibration, which can lead to deviation or detachment, affecting production continuity and equipment stability.
A chain anti-deviation structure including a protective mechanism and a limiting mechanism was designed. The first limiting shell and the second limiting shell are covered on the sprocket and the chain. Combined with the limiting roller and the push wheel, the chain sway is restrained, ensuring that the chain enters the sprocket smoothly and preventing it from falling off.
It effectively prevents chain deviation and detachment, ensures the continuous and stable operation of the hoist, reduces unplanned downtime and equipment maintenance costs, and improves production efficiency.
Smart Images
Figure CN224147643U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-deviation technology for elevator chain, specifically an anti-deviation structure for elevator chain. Background Technology
[0002] In modern industrial production, especially in the battery manufacturing field, hoists, as key material transfer equipment, play an important role in efficiently transporting battery components or finished products between different production stages.
[0003] However, in the practical application of material conveying elevators in battery production lines, the chain, as a core transmission component, is prone to lateral swaying due to inertial forces, uneven loads, or vibrations during the start-up, shutdown, or speed change of the elevator. Once the chain sways, it can cause chain deviation or even detachment, resulting in production interruption, reduced production efficiency, and increased equipment maintenance costs. Therefore, we need to propose a chain anti-deviation structure for elevators. Utility Model Content
[0004] The purpose of this invention is to provide a chain anti-deviation structure for a hoist, which prevents the chain from shifting and falling off due to shaking, thus preventing equipment jamming and shutdown, and solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A chain anti-deviation structure for a hoist includes a hoist, and a sprocket and a chain disposed on the hoist. The base plate of the hoist is provided with multiple sets of fixing components corresponding to the sprocket and the chain. Anti-deviation components for preventing chain deviation are disposed on the multiple sets of fixing components, and the anti-deviation components cover the sprocket and the chain.
[0007] Preferably, the anti-deviation component includes a protective mechanism and a limiting mechanism. The protective mechanism includes a first limiting shell and a second limiting shell. The first limiting shell and the second limiting shell are mounted on the sprocket and chain near the bottom plate of the hoist. A channel is left between the chain, the sprocket and the first limiting shell and the second limiting shell.
[0008] Preferably, the limiting mechanism includes a first limiting structure and a second limiting structure. The first limiting structure includes a mounting frame, a first limiting roller, and a first fixing member. Both the top of the first limiting shell and the second limiting shell are provided with clearance grooves. Both the first limiting shell and the second limiting shell are separated by clearance grooves with protrusions. The mounting frame is provided with insertion holes that are adapted to the protrusions. The mounting frame is sleeved on the protrusions through the insertion holes. The mounting frame is fixedly mounted on the first limiting shell and the second limiting shell by fixing screws. The first fixing member is threaded onto the mounting frame. The first limiting roller is rotatably mounted on the first fixing member. The surface of the first limiting roller is in contact with the side of the chain.
[0009] Preferably, the second limiting structure includes a fixed seat, an extension plate, a second fixing member, and a second limiting roller. The fixed seat is sleeved on both sides of the first limiting shell and the second limiting shell. A plug-in block is fixedly connected inside the fixed seat. The top of both the first limiting shell and the second limiting shell is provided with a plug-in groove that matches the plug-in block. The plug-in block is inserted into the plug-in groove. The fixed seat is fixedly installed on the first limiting shell and the second limiting shell by fixing screws. The second fixing member is threadedly installed on the extension plate. The second limiting roller is rotatably installed on the second fixing member. The surface of the second limiting roller contacts the side of the chain.
[0010] Preferably, the fixing component includes an adjustment mechanism and a positioning mechanism. The adjustment mechanism includes a guide rail, a first slider, and a second slider. The guide rail is fixedly installed on the base plate of the hoist. The first slider and the second slider are both slidably installed on the guide rail. The first limiting shell is fixedly installed on the top of the first slider, and the second limiting shell is fixedly installed on the top of the second slider.
[0011] Preferably, the positioning mechanism includes a mounting base, a positioning rod, a push spring, and a positioning block. The mounting base is fixedly connected to the top of the first slider and the second slider. The positioning rod is movably inserted into the mounting base. The push spring is sleeved on the positioning rod. The positioning block is fixedly connected to the lower end of the positioning rod. The upper end of the push spring abuts against the inner wall of the mounting base, and the lower end of the push spring abuts against the top of the positioning block. The top of the guide rail has a slot for the positioning block to be inserted into. The positioning block is inserted into the slot.
[0012] Preferably, the frame of the hoist is fixedly installed with multiple sets of fixing plates corresponding to the chain. The fixing plates are threaded with threaded rods, and push plates are movably installed at the ends of the threaded rods. Push wheels for chain clamping are movably installed on the sides of the push plates, and the surface of the push wheels contacts the side of the chain.
[0013] Preferably, a guide rod for guiding is fixedly connected to the side of the push plate, and the guide rod is inserted into the fixed plate.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This utility model, through the design of a first limiting shell, a second limiting shell, and an anti-deviation mechanism, uses the first and second limiting shells to cover the sprocket and chain, leaving a channel between the chain and the first and second limiting shells to allow the sprocket and chain to rotate normally. The anti-deviation mechanism is located on the side of the chain, contacting the chain to constrain its positioning before it enters the sprocket and to restrain its swing, ensuring a smooth entry of the chain onto the sprocket. This avoids problems such as equipment jamming and downtime caused by the chain falling off, ensuring the continuous and stable operation of the battery production line and reducing unplanned production losses. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the chain, fixing component, and anti-deviation component of this utility model;
[0018] Figure 3 This is a schematic diagram of the anti-deviation component of this utility model;
[0019] Figure 4 This is a partial structural schematic diagram of the anti-deviation component of this utility model;
[0020] Figure 5 This is a schematic diagram of the structure of the fixing component of this utility model;
[0021] Figure 6 This is a schematic diagram of the push plate and push wheel of this utility model.
[0022] In the diagram: 1. Hoist; 2. Chain; 3. Fixing assembly; 301. Guide rail; 302. First slider; 303. Second slider; 304. Mounting base; 305. Positioning rod; 306. Push spring; 307. Positioning block; 308. Slot; 4. Anti-deviation assembly; 401. First limiting shell; 402. Second limiting shell; 403. Mounting bracket; 404. Protrusion; 405. Insertion hole; 406. First limiting roller; 407. Clearance groove; 408. Fixing base; 409. Extension plate; 410. Insertion block; 411. First fixing component; 412. Second fixing component; 413. Second limiting roller; 414. Insertion groove; 5. Fixing plate; 6. Threaded rod; 7. Push plate; 8. Push wheel. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-6 This utility model provides a technical solution:
[0025] A chain anti-deviation structure for a hoist includes a hoist 1 and a sprocket and a chain 2 disposed on the hoist 1. The base plate of the hoist 1 is provided with multiple sets of fixing components 3 corresponding to the sprocket and the chain 2. The multiple sets of fixing components 3 are provided with anti-deviation components 4 for preventing the chain 2 from deviating. The anti-deviation components 4 cover the sprocket and the chain 2.
[0026] In an optional embodiment: such as Figure 2-4 As shown, the anti-deviation component 4 includes a protective mechanism and a limiting mechanism. The protective mechanism includes a first limiting shell 401 and a second limiting shell 402. The first limiting shell 401 and the second limiting shell 402 are mounted on the sprocket and chain 2 near the bottom plate of the hoist 1. A channel is left between the chain 2, the sprocket and the first limiting shell 401 and the second limiting shell 402.
[0027] It should be noted that the first limiting shell 401 and the second limiting shell 402 cooperate to cover the outside of the sprocket and the chain 2, forming a protective structure to prevent foreign objects from entering between the sprocket and the chain 2, which would cause the chain 2 to fall off the sprocket.
[0028] The hoist 1 is existing technology. Based on the existing technology of the hoist 1, this application is used to prevent the hoist from shifting and falling off due to chain swaying. It only emphasizes its structural advantages and practical application effects, and does not involve the working principle or basic structure of the hoist 1.
[0029] In an optional embodiment: such as Figure 2-4As shown, the limiting mechanism includes a first limiting structure and a second limiting structure. The first limiting structure includes a mounting frame 403, a first limiting roller 406, and a first fixing member 411. The top of the first limiting shell 401 and the second limiting shell 402 are both provided with clearance grooves 407. The first limiting shell 401 and the second limiting shell 402 are both separated by clearance grooves 407 with protrusions 404. The mounting frame 403 is provided with insertion holes 405 that are adapted to the protrusions 404. The mounting frame 403 is sleeved on the protrusions 404 through the insertion holes 405. The mounting frame 403 is fixedly mounted on the first limiting shell 401 and the second limiting shell 402 by fixing screws. The first fixing member 411 is threadedly mounted on the mounting frame 403. The first limiting roller 406 is rotatably mounted on the first fixing member 411. The surface of the first limiting roller 406 is in contact with the side of the chain 2.
[0030] It should be noted that the clearance groove 407 allows the mounting bracket 403 to be fitted onto the protrusion 404, thus fixing the mounting bracket 403 to the protrusion 404. Both ends of the first limiting roller 406 have holes for the insertion of the first fixing member 411. The end of the first fixing member 411 is inserted into the hole, thereby supporting the first limiting roller 406. The first fixing member 411 is a screw. The first limiting roller 406 limits the forward movement of the chain 2. When the chain 2 passes the first limiting roller 406, the first limiting roller 406 rolls, reducing frictional resistance and ensuring transmission efficiency.
[0031] In an optional embodiment: such as Figure 2-4 As shown, the second limiting structure includes a fixed base 408, an extension plate 409, a second fixing member 412, and a second limiting roller 413. The fixed base 408 is sleeved on both sides of the first limiting shell 401 and the second limiting shell 402. A plug-in block 410 is fixedly connected inside the fixed base 408. The top of the first limiting shell 401 and the second limiting shell 402 are both provided with plug-in grooves 414 that are adapted to the plug-in block 410. The plug-in block 410 is inserted into the plug-in groove 414. The fixed base 408 is fixedly installed on the first limiting shell 401 and the second limiting shell 402 by fixing screws. The second fixing member 412 is threaded on the extension plate 409. The second limiting roller 413 is rotatably installed on the second fixing member 412. The surface of the second limiting roller 413 is in contact with the side of the chain 2.
[0032] It should be noted that the insertion block 410, in conjunction with the insertion slot 414, is used to position the fixed seat 408, which can improve the accuracy of the fixed seat 408 installation. The second limiting roller 413 is used to limit the left and right sway of the chain 2. When the chain 2 passes the second limiting roller 413, the second limiting roller 413 rolls, reducing frictional resistance and ensuring transmission efficiency.
[0033] In an optional embodiment: such as Figure 5 As shown, the fixing component 3 includes an adjustment mechanism and a positioning mechanism. The adjustment mechanism includes a guide rail 301, a first slider 302 and a second slider 303. The guide rail 301 is fixedly installed on the base plate of the hoist 1. The first slider 302 and the second slider 303 are both slidably installed on the guide rail 301. The first limiting shell 401 is fixedly installed on the top of the first slider 302 and the second limiting shell 402 is fixedly installed on the top of the second slider 303.
[0034] It should be noted that the guide rail 301, the first slider 302 and the second slider 303 cooperate to facilitate the disassembly and installation of the first limiting shell 401 and the second limiting shell 402.
[0035] In an optional embodiment: such as Figure 5 As shown, the positioning mechanism includes a mounting base 304, a positioning rod 305, a push spring 306, and a positioning block 307. The mounting base 304 is fixedly connected to the top of the first slider 302 and the second slider 303. The positioning rod 305 is movably inserted into the mounting base 304. The push spring 306 is sleeved on the positioning rod 305. The positioning block 307 is fixedly connected to the lower end of the positioning rod 305. The upper end of the push spring 306 abuts against the inner wall of the mounting base 304, and the lower end of the push spring 306 abuts against the top of the positioning block 307. The top of the guide rail 301 has a slot 308 for the positioning block 307 to be inserted into. The positioning block 307 is inserted into the slot 308.
[0036] It should be noted that the mounting base 304, positioning rod 305, push spring 306, slot 308 and positioning block 307 cooperate to improve the convenience of disassembling and installing the first limiting shell 401 and the second limiting shell 402.
[0037] In an optional embodiment: such as Figure 1 and Figure 6 As shown, multiple sets of fixing plates 5 corresponding to the chain 2 are fixedly installed on the frame of the hoist 1. A threaded rod 6 is installed on the internal thread of the fixing plate 5. A push plate 7 is movably installed at the end of the threaded rod 6. A push wheel 8 for pressing the chain 2 is movably installed on the side of the push plate 7. The surface of the push wheel 8 is in contact with the side of the chain 2.
[0038] It should be noted that the threaded rod 6, push plate 7 and push wheel 8 cooperate to press against the chain 2, ensuring that the chain is always in the best tension state, avoiding deviation or wear caused by looseness or excessive tightness. In addition, when the chain 2 passes the push wheel 8, the push wheel 8 rolls, reducing frictional resistance and ensuring transmission efficiency.
[0039] In an optional embodiment: such as Figure 6 As shown, a guide rod for guiding is fixedly connected to the side of the push plate 7, and the guide rod is inserted into the fixed plate 5.
[0040] It should be noted that the guide rod is used to guide and position the push plate 7.
[0041] The usage process of this utility model is as follows: When the elevator 1 is working, when the sprocket drives the chain 2, before the chain 2 comes into contact with the sprocket, it will pass through the first limiting roller 406 and the second fixing member 412. The first limiting roller 406 and the second fixing member 412 can position the chain 2 and restrain the swing of the chain 2 before it enters the sprocket, ensuring that the chain 2 enters the sprocket smoothly and avoiding problems such as equipment jamming and shutdown caused by the chain falling off. This ensures the continuous and stable operation of the battery production line and reduces unplanned production stoppage losses. In addition, when the chain 2 passes the push wheel 8, the push wheel 8 can press against the chain 2 to make it taut and prevent the sprocket from shaking when driving the chain 2.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A chain anti-derailment structure for an elevator, characterized by: The device includes a hoist (1) and a sprocket and a chain (2) mounted on the hoist (1). The bottom plate of the hoist (1) is provided with multiple sets of fixing components (3) corresponding to the sprocket and the chain (2). The multiple sets of fixing components (3) are provided with anti-deviation components (4) for preventing the chain (2) from deviating. The anti-deviation components (4) cover the sprocket and the chain (2).
2. The chain anti-deviation structure for the hoist according to claim 1, characterized in that: The anti-deviation component (4) includes a protective mechanism and a limiting mechanism. The protective mechanism includes a first limiting shell (401) and a second limiting shell (402). The first limiting shell (401) and the second limiting shell (402) are covered on the sprocket and chain (2) near the bottom plate of the hoist (1). A channel is left between the chain (2), the sprocket and the first limiting shell (401) and the second limiting shell (402).
3. A chain derailing prevention structure for a hoist according to claim 2, characterized in that: The limiting mechanism includes a first limiting structure and a second limiting structure. The first limiting structure includes a mounting frame (403), a first limiting roller (406), and a first fixing member (411). Both the first limiting shell (401) and the second limiting shell (402) have clearance grooves (407) on their tops. Both the first limiting shell (401) and the second limiting shell (402) have protrusions (404) separated by the clearance grooves (407). The mounting frame (403) has protrusions (404) that are connected to the protrusions. The mounting bracket (403) is fitted onto the protrusion (404) through the matching insertion hole (405). The mounting bracket (403) is fixedly installed on the first limiting shell (401) and the second limiting shell (402) by fixing screws. The first fixing member (411) is threaded on the mounting bracket (403). The first limiting roller (406) is rotatably installed on the first fixing member (411). The surface of the first limiting roller (406) is in contact with the side of the chain (2).
4. The chain derailing prevention structure for a hoist according to claim 3, characterized in that: The second limiting structure includes a fixed base (408), an extension plate (409), a second fixing member (412), and a second limiting roller (413). The fixed base (408) is sleeved on both sides of the first limiting shell (401) and the second limiting shell (402). A plug-in block (410) is fixedly connected inside the fixed base (408). The tops of both the first limiting shell (401) and the second limiting shell (402) are provided with openings that are compatible with the plug-in block (410). The insertion slot (414) is into which the insertion block (410) is inserted. The fixing seat (408) is fixedly installed on the first limiting shell (401) and the second limiting shell (402) by fixing screws. The second fixing member (412) is threadedly installed on the extension plate (409). The second limiting roller (413) is rotatably installed on the second fixing member (412). The surface of the second limiting roller (413) is in contact with the side of the chain (2).
5. The chain derailing prevention structure for a hoist according to claim 2, characterized by: The fixing component (3) includes an adjustment mechanism and a positioning mechanism. The adjustment mechanism includes a guide rail (301), a first slider (302) and a second slider (303). The guide rail (301) is fixedly installed on the bottom plate of the hoist (1). The first slider (302) and the second slider (303) are both slidably installed on the guide rail (301). The first limiting shell (401) is fixedly installed on the top of the first slider (302), and the second limiting shell (402) is fixedly installed on the top of the second slider (303).
6. A chain derailing prevention structure for a hoist according to claim 5, characterized in that: The positioning mechanism includes a mounting base (304), a positioning rod (305), a push spring (306), and a positioning block (307). The mounting base (304) is fixedly connected to the top of the first slider (302) and the second slider (303). The positioning rod (305) is movably inserted into the mounting base (304). The push spring (306) is sleeved on the positioning rod (305). The positioning block (307) is fixedly connected to the lower end of the positioning rod (305). The upper end of the push spring (306) abuts against the inner wall of the mounting base (304), and the lower end of the push spring (306) abuts against the top of the positioning block (307). The top of the guide rail (301) is provided with a slot (308) for the positioning block (307) to be inserted into. The positioning block (307) is inserted into the slot (308).
7. The chain derailing prevention structure for a hoist according to claim 1, characterized by: The frame of the hoist (1) is fixedly installed with multiple sets of fixing plates (5) corresponding to the chain (2). The fixing plate (5) is threaded with a threaded rod (6). The end of the threaded rod (6) is movably installed with a push plate (7). The side of the push plate (7) is movably installed with a push wheel (8) for the chain (2) to abut. The surface of the push wheel (8) is in contact with the side of the chain (2).
8. A chain de-wandering structure for a hoist as defined in claim 7, wherein: The push plate (7) is fixedly connected to a guide rod for guiding, which is inserted into the fixed plate (5).