Clean type double-hook chain hoist

Abstract

The utility model belongs to the technical field of hoisting equipment, and relates to a clean type double-hook chain hoist which comprises a main hoist, an auxiliary hoist, a main sports car and an auxiliary sports car, the main hoist is driven by a lifting motor, the main sports car is driven by a running motor, and the main sports car and the auxiliary sports car are synchronously connected through a sports car plate. The main hoist and the auxiliary hoist are synchronously connected through an output shaft, lifting hooks connected through a loop chain are arranged below the main hoist and the auxiliary hoist respectively, the main hoist, the auxiliary hoist, the main sports car and the auxiliary sports car are covered with a clean cover, and the clean cover is fixedly connected with the sports car plate through a bent connecting plate. The bottom of the cleaning cover is hermetically connected with two groups of cleaning chain buckets and organ covers which are distributed in parallel, and chain guide devices are arranged between the main hoist and the corresponding cleaning chain buckets and between the auxiliary hoist and the corresponding cleaning chain buckets. The clean type double-hook chain hoist provided by the utility model is specially designed for a clean environment, and can meet the working condition with a high clean requirement.

Description

Technical Field

[0001] This utility model belongs to the technical field of lifting equipment, and relates to a clean double-hook chain hoist. Background Technology

[0002] Chain hoists, as a type of lightweight lifting equipment, are widely used in various locations due to their small size, light weight, and ease of operation. They are essential equipment for improving labor efficiency and the working environment. Among their applicable locations are those with particularly high requirements for cleanliness, such as cleanrooms, biomanufacturing workshops, medical device industries, food processing, and microelectronics workshops. However, existing chain hoists, during operation, can cause dust leakage from their trolley, hoist, and chain components, affecting the cleanliness of the work area.

[0003] To address this issue, Chinese utility model CN205367554U discloses an electric hoist system for cleanrooms, comprising an electric hoist body, a dust cover, a telescopic bellows cover, and a chain; the electric hoist body is located inside the dust cover; the chain connects to the electric hoist body and is located inside the telescopic bellows cover; the sprocket surface of the electric hoist body is nickel-plated; the chain surface is nickel-plated.

[0004] The aforementioned electric hoists only protect the hoist body itself, but the trolley of the hoist system also generates dust, and the chain section is only partially protected. Furthermore, the double-hook chain hoist is a large electric hoist system, which also presents challenges for cleanroom design. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a clean double-hook chain hoist, specifically designed for clean environments. It effectively prevents the leakage of microparticles and is suitable for highly clean environments such as cleanrooms, biomanufacturing workshops, medical device industries, food processing, and microelectronics.

[0006] To solve the above-mentioned technical problems, the objective of this utility model is achieved through the following technical solution:

[0007] A clean-type double-hook chain hoist includes a main hoist, an auxiliary hoist, a main trolley, and an auxiliary trolley. The main hoist is driven by a lifting motor, and the main trolley is driven by a running motor. The main trolley and auxiliary trolley are connected synchronously via a trolley plate. The main hoist and auxiliary hoist are connected synchronously via an output shaft. Hooks connected by a chain are respectively provided below the main hoist and auxiliary hoist. The main hoist, auxiliary hoist, main trolley, and auxiliary trolley are covered with a clean cover. The clean cover is fixedly connected to the trolley plate by a bent connecting plate. Two sets of parallel clean chain drums and bellows covers are sealed at the bottom of the clean cover. The two sets of clean chain drums and bellows covers are respectively arranged corresponding to the chain of the main hoist and auxiliary hoist. A chain guide device is provided between the main hoist and auxiliary hoist and the corresponding clean chain drum.

[0008] In the aforementioned clean double-hook chain hoist, both the clean cover and the clean chain drum are made of stainless steel.

[0009] In the aforementioned cleanroom-type double-hook chain hoist, the tops of the cleanroom chain drum and the bellows cover are respectively fixed and sealed to the corresponding mounting through holes at the bottom of the cleanroom cover using fasteners. Furthermore, the top of the cleanroom chain drum is provided with a flange that connects to the bottom of the cleanroom cover, and the top of the bellows cover is provided with a bellows cover connecting plate that connects to the bottom of the cleanroom cover.

[0010] In the aforementioned cleanroom-type double-hook chain hoist, the upper end of the chain guide device is fixed to the bottom of the main hoist or auxiliary hoist, and the lower end penetrates the bottom of the cleanroom hood and extends to the top of the cleanroom chain drum. The chain guide device is inclined from top to bottom towards the cleanroom chain drum. Preferably, the inclination angle of the chain guide device is 11°, which is the angle between the chain guide device and the vertical direction.

[0011] In the above-mentioned cleanroom double-hook chain hoist, four bending connecting plates are provided, which are respectively arranged on the outer sides of both ends of the carriage plate. The two connecting parts of the bending connecting plates are respectively fastened to the inner wall of the cleanroom hood and the outer wall of the carriage plate by fasteners. Preferably, the carriage plate is a double plate structure arranged in parallel, and a bending connecting plate is respectively arranged on the outer sides of the two ends of the two carriage plates. The bending connecting plate is preferably an L-shaped plate.

[0012] In the aforementioned clean double-hook chain hoist, the clean cover is a rectangular cover with an opening at the top, and the two ends of the clean cover are provided with notches for the main beam to pass through.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] 1. This utility model provides a clean-type double-hook chain hoist. The main hoist, auxiliary hoist, main trolley, and auxiliary trolley are protected by a clean hood, and the chain links are protected by a clean chain drum and bellows cover sealed to the clean hood. This provides complete clean protection for the entire double-hook chain hoist system, completely preventing dust generated by the trolley, hoist, and chain during operation from leaking into the clean area. This utility model is specifically designed for clean environments and is suitable for high-cleanliness conditions such as cleanrooms, biomanufacturing workshops, medical device industries, food processing, and microelectronics workshops. The clean-type double-hook chain hoist of this utility model also has the advantages of being dustproof and oil-proof, corrosion-resistant and acid / alkali-resistant, having high working accuracy, and being easy to clean and maintain.

[0015] 2. This utility model designs a cleanroom structure that is perfectly compatible with the structure of a double-hook chain hoist. The cleanroom cover is fixed to the carriage plate by a bent connecting plate, and the cleanroom chain drum and bellows cover are fixed to the bottom of the cleanroom cover by a sealed connection. A chain guide device is also added to guide the chain to the cleanroom chain drum. This structure has the advantages of high strength, good stability, and easy disassembly, and also allows the double-hook chain hoist to operate more smoothly. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is a perspective view of the present invention after the cleanroom cover has been removed;

[0018] Figure 3 This is a perspective view of the cleanroom hood of this utility model;

[0019] Figure 4 This is a three-dimensional view of the overall structure of the cleanroom protection system of this utility model;

[0020] Reference numerals: 1. Main hoist; 2. Auxiliary hoist; 3. Main trolley; 4. Auxiliary trolley; 5. Lifting motor; 6. Running motor; 7. Trolley plate; 8. Output shaft; 9. Chain; 10. Hook; 11. Clean hood; 12. Bending connecting plate; 13. Clean chain drum; 14. Bellows cover; 15. Chain guide device; 16. Mounting through hole; 17. Flanged edge; 18. Bellows cover connecting plate; 19. Notch. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-4 :

[0022] A clean double-hook chain hoist includes a main hoist 1, an auxiliary hoist 2, a main trolley 3, and an auxiliary trolley 4. The main hoist 1 is driven by a lifting motor 5, and the main trolley 3 is driven by a running motor 6. The main trolley 3 and the auxiliary trolley 4 are connected synchronously via a trolley plate 7. The main hoist 1 and the auxiliary hoist 2 are connected synchronously via an output shaft 8. Hooks 10 connected by chains 9 are respectively provided below the main hoist 1 and the auxiliary hoist 2. The main hoist 1, the auxiliary hoist 2, the main trolley 3, and the auxiliary trolley 4 are covered with a clean cover 11. The clean cover 11 is fixedly connected to the trolley plate 7 via a bent connecting plate 12. The bottom of the clean cover 11 is sealed with two sets of parallel clean chain drums 13 and bellows covers 14. The two sets of clean chain drums 13 and bellows covers 14 are respectively arranged corresponding to the chains 9 of the main hoist 1 and the auxiliary hoist 2. A chain guide device 15 is provided between the main hoist 1 and the auxiliary hoist 2 and the corresponding clean chain drums 13.

[0023] Comparison Appendix Figure 2 The working method of the double hook chain hoist in this embodiment is the same as that in the prior art: During the lifting process, the lifting motor 5 drives the sprocket shaft of the main hoist 1 to rotate, thereby driving the chain 9 of the main hoist 1 to wind and drive the hook 10 to rise and fall. At the same time, the lifting motor 5 transmits power to the auxiliary hoist 2 through the output shaft 8, driving its sprocket shaft to rotate, thereby driving the chain 9 of the auxiliary hoist 2 to wind and drive the hook 10 to rise and fall. The workpiece is lifted by the synchronous operation of the main hoist 1 and the auxiliary hoist 2. During the traveling process, the running motor 6 drives the trolley wheel of the main trolley 3 to rotate, so that the main trolley 3 travels on the main beam. The auxiliary trolley 4 is driven by the trolley plate 7 to follow the main trolley 3 and travel synchronously on the main beam.

[0024] Comparison Appendix Figure 1 In this embodiment, the main hoist 1, auxiliary hoist 2, main trolley 3, and auxiliary trolley 4 are cleaned and protected by a clean hood 11, and the chain 9 is cleaned and protected by a clean chain bucket 13 and a bellows cover 14. When the hook 10 is raised or lowered, the bellows cover 14 retracts or extends as the length of the chain 9 on the side of the hook 10 changes. At the same time, the chain guide device 15 guides the chain 9 to the clean chain bucket 13 or leads it out of the clean chain bucket 13. In this embodiment, the clean hood 11, the clean chain bucket 13, and the bellows cover 14 form a sealed overall protective structure, which can provide overall protection for all components of the double hook chain 9 hoist.

[0025] In this embodiment, both the cleanroom hood 11 and the cleanroom chain drum 13 are made of stainless steel.

[0026] Comparison Appendix Figure 3 and attached Figure 4The tops of the clean chain drum 13 and the bellows cover 14 are respectively fixed and sealed to the mounting through holes 16 corresponding to the bottom of the clean cover 11 by fasteners. Furthermore, the top of the clean chain drum 13 is provided with a flange 17 that connects to the bottom of the clean cover 11, and the top of the bellows cover 14 is provided with a bellows cover connecting plate 18 that connects to the bottom of the clean cover 11.

[0027] To better guide the chain link 9, the upper end of the chain guide device 15 is fixed to the bottom of the main hoist 1 or the auxiliary hoist 2, and the lower end passes through the bottom of the clean hood 11 and extends to the top of the clean chain drum 13. The chain guide device 15 is inclined from top to bottom towards the clean chain drum 13. Preferably, the inclination angle of the chain guide device 15 is 11°, which is the angle between the chain guide device 15 and the vertical direction.

[0028] In this embodiment, the specific fixing structure of the carriage plate 7 and the cleanroom hood 11 is as follows: four bending connecting plates 12 are provided, respectively disposed on the outer sides of both ends of the carriage plate 7. The two connecting parts of the bending connecting plate 12 are respectively fastened to the inner wall of the cleanroom hood 11 and the outer wall of the carriage plate 7 by fasteners. Preferably, the carriage plate 7 is a double plate structure arranged in parallel, and a bending connecting plate 12 is respectively provided on the outer sides of the two ends of the two carriage plates 7. The bending connecting plate 12 is preferably an L-shaped plate.

[0029] In this embodiment, the cleanroom hood 11 is a cuboid hood with an opening at the top, and the two ends of the cleanroom hood 11 are provided with notches 19 for the main beam to pass through.

[0030] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A clean double-hook chain hoist, comprising a main hoist (1), an auxiliary hoist (2), a main trolley (3), and an auxiliary trolley (4), wherein the main hoist (1) is driven by a lifting motor (5), the main trolley (3) is driven by a running motor (6), the main trolley (3) and the auxiliary trolley (4) are connected synchronously via a trolley plate (7), the main hoist (1) and the auxiliary hoist (2) are connected synchronously via an output shaft (8), and hooks (10) connected by chains (9) are respectively provided below the main hoist (1) and the auxiliary hoist (2), characterized in that, The main hoist (1), auxiliary hoist (2), main trolley (3), and auxiliary trolley (4) are covered with a clean cover (11). The clean cover (11) and the trolley plate (7) are fixedly connected by a bent connecting plate (12). The bottom of the clean cover (11) is sealed with two sets of parallel clean chain drums (13) and bellows covers (14). The two sets of clean chain drums (13) and bellows covers (14) are respectively set to correspond to the ring chains (9) of the main hoist (1) and auxiliary hoist (2). A chain guide device (15) is set between the main hoist (1) and auxiliary hoist (2) and the corresponding clean chain drum (13).

2. The clean double-hook chain hoist according to claim 1, characterized in that, The tops of the clean chain bucket (13) and the bellows cover (14) are fixed and sealed to the corresponding mounting through holes (16) at the bottom of the clean cover (11) by fasteners.

3. A clean double-hook chain hoist according to claim 2, characterized in that, The top of the clean chain drum (13) is provided with a flange (17) that connects to the bottom of the clean cover (11), and the top of the bellows cover (14) is provided with a bellows cover connecting plate (18) that connects to the bottom of the clean cover (11).

4. A clean double-hook chain hoist according to claim 1, characterized in that, The upper end of the chain guide device (15) is fixed to the bottom of the main hoist (1) or the auxiliary hoist (2), and the lower end passes through the bottom of the clean hood (11) and extends to the top of the clean chain drum (13). The chain guide device (15) is inclined from top to bottom toward the clean chain drum (13).

5. A clean double-hook chain hoist according to claim 4, characterized in that, The tilt angle of the chain guide device (15) is 11°.

6. A clean double-hook chain hoist according to claim 1, characterized in that, Four bending connecting plates (12) are provided, which are respectively located on the outer sides of both ends of the carriage plate (7). The two connecting parts of the bending connecting plate (12) are respectively fastened to the inner wall of the clean hood (11) and the outer wall of the carriage plate (7) by fasteners.

7. A clean double-hook chain hoist according to claim 1, characterized in that, The cleanroom hood (11) is a rectangular prism with an opening at the top, and the two ends of the cleanroom hood (11) are provided with notches (19) for the main beam to pass through.

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