Transmission assembly of low-noise environment-friendly hoisting equipment

Abstract

The utility model discloses a transmission assembly of low-noise environment-friendly hoisting equipment, which belongs to the technical field of hoisting equipment and comprises a hoisting outer box, a hoisting inner box is arranged in the hoisting outer box, and a plurality of nonlinear rubber vibration isolators are embedded at the bottom of the inner wall of the hoisting outer box. The sides, away from the hoisting outer box, of the multiple nonlinear rubber vibration isolators are fixedly connected with the hoisting inner box, a hoisting rope is arranged in the hoisting inner box, and the hoisting rope penetrates through the bottom of the hoisting inner box and the bottom of the hoisting outer box and is movably connected with the hoisting inner box and the hoisting outer box. The hoisting outer box and the hoisting inner box are matched, a hollow interlayer is formed between the hoisting outer box and the hoisting inner box, sound transmission is effectively prevented, the multiple nonlinear rubber vibration isolators are connected with the hoisting inner box to form a suspension type isolation structure, and part of vibration transmission is reduced.

Description

A transmission component for a low-noise and environmentally friendly lifting device Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and more specifically, to a transmission component of a low-noise and environmentally friendly lifting equipment. Background Technology

[0002] Lifting machinery, also known as hoisting equipment, is an important tool and equipment in industrial, transportation, and construction enterprises to realize the mechanization and automation of production processes, reduce heavy physical labor, and improve labor productivity. my country already has a large number of various types of lifting equipment. Although the number of lifting equipment used in university laboratories is not large and the lifting tonnage is not large, the maintenance and safe operation of lifting equipment are even more important because the frequency of use of lifting equipment is not high.

[0003] Chinese Patent Announcement No. 202220004541.1 discloses a transmission component for a lifting device. The transmission component for a lifting device designed by this utility model can ensure the safety of the lifting device in hoisting objects, and can directly control various states of the gripping parts. It is quick and convenient to use and has usable value in the field of lifting device application technology.

[0004] However, the improved lifting equipment mentioned above generates various noises during operation due to the various movements of the hoisting box, such as lifting, moving, and lowering heavy objects. Long-term exposure to this high-intensity noise environment may lead to hearing loss for workers, and excessive noise may interfere with communication between workers. Therefore, a transmission component for a low-noise and environmentally friendly lifting equipment is proposed to address the above problems. Summary of the Invention

[0005] 1. Technical problems to be solved

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a transmission component for a low-noise and environmentally friendly lifting device. The transmission component box adopts a double-wall design, with an outer lifting box and an inner lifting box working together to form a hollow partition between them, effectively blocking the transmission of sound. Furthermore, multiple nonlinear rubber vibration isolators are connected to the inner lifting box to form a "floating" isolation structure, reducing some of the vibration transmission.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A transmission component for a low-noise, environmentally friendly lifting device includes a lifting outer casing and an inner lifting casing inside the outer casing. Several nonlinear rubber vibration isolators are embedded in the bottom of the inner wall of the outer casing. The sides of the nonlinear rubber vibration isolators away from the outer casing are fixedly connected to the inner lifting casing. A lifting rope is installed inside the inner lifting casing, passing through the bottom of both the inner and outer casings and movably connected to them. A servo motor is fixedly installed inside the inner lifting casing. A flexible coupling is fixedly installed at the output end of the servo motor. A worm gear is fixedly installed on one side of the flexible coupling. Two worm wheels mesh with the outer side of the worm gear. Two rotating rods are fixedly installed on one side of each of the two worm wheels. A transmission rod is fixedly installed on the outer side of each of the two rotating rods, and one of the transmission rods is fixedly connected to the lifting rope.

[0010] Furthermore, the flexible coupling, worm gear, and two worm wheels are all rotatably connected to the inner hoisting box, the two rotating rods are inserted into the interior of the outer hoisting box and rotatably connected thereto, and the other transmission rod is connected to the hoisting rope.

[0011] Furthermore, auxiliary frames are fixedly installed on both the outer and inner hoisting boxes, and rollers are rotatably connected to several of the auxiliary frames.

[0012] Furthermore, the inner wall of the hoisting outer box is inlaid with sound-absorbing panels, and lifting lugs are fixedly installed on the corresponding sides of the hoisting outer box. The nonlinear rubber vibration isolator is composed of an upper shell, a lower shell, and an elastic element.

[0013] Furthermore, several cavities are provided on the corresponding sides of the hoisting outer box, and dustproof nets are fixedly installed inside the cavities. The dustproof nets are fixedly connected to the hoisting outer box, and fiberglass sound-absorbing felt is pasted on the inner wall of the cavity.

[0014] Furthermore, the bottom of the outer hoisting box is provided with a box plate, and the top of the box plate is provided with several fixing bolts, all of which penetrate the box plate and are threaded to it. All of the fixing bolts are inserted into the interior of the outer hoisting box and are threaded to it. The interior of the inner hoisting box is provided with a control module, which is electrically connected to the servo motor.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] This solution employs a double-wall design for the transmission component box, with an outer and inner suspended enclosure that work together to form a hollow partition, effectively preventing sound transmission. Furthermore, multiple nonlinear rubber vibration isolators connected to the inner suspended enclosure create a "floating" isolation structure, further reducing vibration transmission. Attached Figure Description

[0018] Figure 1 is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 is a side sectional view of the present invention.

[0020] Figure 3 is an enlarged view of point A in Figure 2 of this utility model;

[0021] Figure 4 is a partial structural schematic diagram of this utility model.

[0022] The following are the labels in the diagram: 1. Lifting outer casing; 2. Lifting inner casing; 3. Nonlinear rubber vibration isolator; 4. Lifting rope; 5. Servo motor; 6. Flexible coupling; 7. Worm gear; 8. Worm wheel; 9. Rotating rod; 10. Transmission rod; 11. Auxiliary frame; 12. Sound-absorbing panel; 13. Cavity; 14. Dustproof net; 15. Box panel; 16. Control module. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Example:

[0025] Please refer to Figures 1-4. A transmission component for a low-noise and environmentally friendly lifting device includes an outer lifting housing 1 and an inner lifting housing 2 inside the outer lifting housing 1. Several nonlinear rubber vibration isolators 3 are embedded in the bottom of the inner wall of the outer lifting housing 1. The side of the nonlinear rubber vibration isolators 3 away from the outer lifting housing 1 is fixedly connected to the inner lifting housing 2. A lifting rope 4 is installed inside the inner lifting housing 2. The lifting rope 4 passes through the bottom of the inner lifting housing 2 and the outer lifting housing 1 and is movably connected to them. A servo motor 5 is fixedly installed inside the inner lifting housing 2. A flexible coupling 6 is fixedly installed at the output end of the servo motor 5. A worm gear 7 is fixedly installed on one side of the flexible coupling 6. Two worm wheels 8 mesh with the outer side of the worm gear 7. Two rotating rods 9 are fixedly installed on one side of each of the two worm wheels 8. A transmission rod 10 is fixedly installed on the outer side of each of the two rotating rods 9. One of the transmission rods 10 is fixedly connected to the lifting rope 4.

[0026] The transmission component box features a double-wall design, with an outer lifting box 1 and an inner lifting box 2 working together to form a hollow partition, effectively preventing sound transmission. The worm gear 7 and worm wheel 8 have self-locking properties, improving stability during object lifting. A flexible coupling 6 is installed between the servo motor 5 and the worm gear 7 to compensate for misalignment errors between shafts and effectively reduce vibration and noise transmission.

[0027] The flexible coupling 6, worm 7 and two worm wheels 8 are all rotatably connected to the inner hoisting box 2. The two rotating rods 9 are inserted into the interior of the outer hoisting box 1 and rotatably connected to it. Another transmission rod 10 is rotatably connected to the hoisting rope 4. Auxiliary frames 11 are fixedly installed on both the outer hoisting box 1 and the inner hoisting box 2. Rollers are rotatably connected to several auxiliary frames 11.

[0028] By setting an auxiliary frame 11 and rollers at the junction of the hoisting rope 4 with the outer hoisting box 1 and the inner hoisting box 2, the rollers can convert the sliding friction between the hoisting rope 4 and the outer hoisting box 1 and the inner hoisting box 2 into the rolling friction of the rollers. The frictional force of rolling friction is much smaller than that of sliding friction, thereby effectively reducing frictional loss.

[0029] The inner wall of the hoisting outer box 1 is inlaid with a sound-absorbing plate 12. The corresponding sides of the hoisting outer box 1 are fixedly installed with lifting lugs. The nonlinear rubber vibration isolator 3 is composed of an upper shell, a lower shell and an elastic element. The corresponding sides of the hoisting outer box 1 are provided with several cavities 13. The interior of each cavity 13 is fixedly installed with a dustproof net 14. The dustproof net 14 is fixedly connected to the hoisting outer box 1. The inner wall of the cavity 13 is pasted with glass fiber sound-absorbing felt.

[0030] By connecting multiple nonlinear rubber vibration isolators 3 with the suspended inner box 2, a "suspended" isolation structure is formed. The nonlinear rubber vibration isolators 3 are based on the existing structure, which achieves a better overall vibration reduction and noise reduction effect on the structure set on the suspended inner box 2.

[0031] Meanwhile, by setting the sound-absorbing plate 12 as a melamine foam sound-absorbing plate, the partial isolation effect of the meshing noise of the worm gear 7 and worm wheel 8 is improved. The multiple cavities 13 are constructed with a "Z"-shaped labyrinth structure and glass fiber sound-absorbing felt is pasted on their inner walls, so that the air inlet and exhaust port of the device form a sound-absorbing structure. At the same time, a dustproof net 14 is set to prevent dust from entering.

[0032] The bottom of the outer hoisting box 1 is provided with a box plate 15, and the top of the box plate 15 is provided with several fixing bolts. All fixing bolts penetrate the box plate 15 and are threaded to it. All fixing bolts are inserted into the interior of the outer hoisting box 1 and are threaded to it. The interior of the inner hoisting box 2 is provided with a control module 16, which is electrically connected to the servo motor 5.

[0033] The lifting lugs on both sides of the outer casing 1 facilitate the installation of the device and the lifting equipment. The device is connected to the control device on the control equipment through the control module 16, thereby controlling the components on the device. At the same time, an existing clamping device is provided at one end of the lifting rope 4 to realize the lifting of the object.

[0034] Working principle: The transmission component box adopts a double-wall design. The outer hoisting box 1 and the inner hoisting box 2 cooperate to form a hollow partition between them. Multiple nonlinear rubber vibration isolators 3 are connected to the inner hoisting box 2 to form a "suspended" isolation structure.

[0035] Meanwhile, the multiple cavities 13 with a "Z"-shaped labyrinth structure, with fiberglass sound-absorbing felt pasted on their inner walls, and the sound-absorbing panels 12 provided, work together to partially isolate noise.

[0036] The lifting lugs on both sides of the outer casing 1 facilitate the installation of the device and the lifting equipment. The control module 16 connects to the control device on the control equipment to control the components on the device. At the same time, an existing clamping device is provided at one end of the lifting rope 4 to lift the object. The outer casing 1 and the box plate 15 are connected by existing fixing bolts, and damping putty is applied to the inner wall of the bolt hole to reduce the transmission of bolt vibration.

[0037] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A transmission component for a low-noise and environmentally friendly lifting device, comprising a lifting outer casing (1), characterized in that: The hoisting outer box (1) is equipped with a hoisting inner box (2). Several nonlinear rubber vibration isolators (3) are embedded in the bottom of the inner wall of the hoisting outer box (1). The side of each nonlinear rubber vibration isolator (3) away from the hoisting outer box (1) is fixedly connected to the hoisting inner box (2). A hoisting rope (4) is installed inside the hoisting inner box (2). The hoisting rope (4) passes through the bottom of the hoisting inner box (2) and the hoisting outer box (1) and is movably connected to them. The inner wall of the hoisting inner box (2)... A servo motor (5) is fixedly installed on the part. A flexible coupling (6) is fixedly installed on the output end of the servo motor (5). A worm (7) is fixedly installed on one side of the flexible coupling (6). Two worm wheels (8) mesh on the outer side of the worm (7). Two rotating rods (9) are fixedly installed on one side of each of the two worm wheels (8). A transmission rod (10) is fixedly installed on the outer side of each of the two rotating rods (9). One of the transmission rods (10) is fixedly connected to the suspension rope (4).

2. The transmission component of a low-noise and environmentally friendly lifting device according to claim 1, characterized in that: The flexible coupling (6), worm (7) and two worm wheels (8) are all rotatably connected to the inner hoisting box (2), the two rotating rods (9) are inserted into the interior of the outer hoisting box (1) and rotatably connected thereto, and the other transmission rod (10) is rotatably connected to the hoisting rope (4).

3. The transmission component of a low-noise and environmentally friendly lifting device according to claim 1, characterized in that: Both the outer hoisting box (1) and the inner hoisting box (2) are fixedly installed with auxiliary frames (11), and each of the auxiliary frames (11) is rotatably connected with a roller.

4. The transmission component of a low-noise and environmentally friendly lifting device according to claim 1, characterized in that: The inner wall of the hoisting outer box (1) is inlaid with a sound-absorbing plate (12), and the corresponding sides of the hoisting outer box (1) are fixedly installed with lifting lugs. The nonlinear rubber vibration isolator (3) is composed of an upper shell, a lower shell and an elastic element.

5. The transmission component of a low-noise and environmentally friendly lifting device according to claim 1, characterized in that: The hoisting outer box (1) has several cavities (13) on its corresponding sides. Each of the cavities (13) is fixedly installed with a dustproof net (14). Each of the dustproof nets (14) is fixedly connected to the hoisting outer box (1). The inner wall of each cavity (13) is pasted with glass fiber sound-absorbing felt.

6. The transmission component of a low-noise and environmentally friendly lifting device according to claim 1, characterized in that: The bottom of the outer hoisting box (1) is provided with a box plate (15), and the top of the box plate (15) is provided with several fixing bolts. The fixing bolts all penetrate the box plate (15) and are threadedly connected to it. The fixing bolts are all inserted into the interior of the outer hoisting box (1) and are threadedly connected to it. The interior of the inner hoisting box (2) is provided with a control module (16), and the control module (16) is electrically connected to the servo motor (5).

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