Worm drive damper

Through the design of the worm drive damper, the worm gear drive and the electronic control components are integrated to achieve a stable and adjustable damping effect of the damper, solve the problems of low transmission efficiency and insufficient stability of the existing damper, protect the motor from damage, and improve the transmission accuracy and reliability.

CN223344643UActive Publication Date: 2025-09-16NINGBO SHENGHE ZHILIAN MOTOR CO LTD
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Patent Information

Application Number
CN202422967965.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2025-09-16
Estimated Expiration
2034-12-03

AI Technical Summary

Technical Problem

Existing dampers have a relatively simple structural design and cannot achieve accurate and flexible damping adjustment. The transmission components are not tightly matched, resulting in low transmission efficiency and insufficient stability. There is also a lack of effective overload protection mechanism, which makes it prone to failure.

Method used

A worm drive damper is designed. By integrating the worm gear transmission component and the electronic control component in the box, the worm and worm wheel are engaged and combined with elastic parts. The design of the worm fixed transmission component and the worm wheel fixed transmission component is combined to ensure the stable positioning and flexible movement of the center shaft and worm wheel. The electronic control component is equipped to achieve precise control and protection.

Benefits of technology

It achieves a compact integrated design, provides a stable and adjustable damping effect, enhances the stability and precision of the transmission, reduces friction and wear, protects the motor from damage, reduces noise, and improves transmission efficiency and reliability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223344643U_ABST
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Abstract

The utility model discloses a worm transmission damper which comprises a box body, a worm gear transmission assembly is arranged in the box body, an electric control assembly is arranged on the outer side of the box body, the worm gear transmission assembly comprises a center shaft, a worm, a worm gear, an elastic piece and a fixed transmission assembly, and the fixed transmission assembly comprises a worm fixed transmission piece and a worm gear fixed transmission piece. The center shaft and the worm gear are arranged in the box body up and down through the worm fixing transmission piece and the worm gear fixing transmission piece, the worm is arranged on the center shaft in a penetrating mode, the worm gear is arranged below the center shaft along the worm, the worm is meshed with the worm gear, worm cavities are formed in the two ends of the worm, and the elastic piece is arranged in the worm cavities and arranged on the center shaft in a penetrating mode. The worm gear transmission mechanism is reasonable in structural design, the worm gear transmission assembly and the electric control assembly are integrated through the arranged box body, and the structure is compact; the meshing transmission of the worm gear and the worm is combined with the elastic piece to provide a stable and adjustable damping effect.
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Description

Technical Field

[0001] The utility model relates to the field of dampers, in particular to a worm transmission damper. Background Art

[0002] In the current field of mechanical transmission, existing damper technology has numerous shortcomings. Traditional dampers often have simple structural designs, making them incapable of precise and flexible damping adjustment. Their transmission components are not tightly coupled, resulting in low transmission efficiency and insufficient stability. They also have poor adaptability to complex operating environments and load fluctuations, making them prone to failure.

[0003] Some dampers lack proper mounting and support, causing components to wobble and shift during operation, impacting transmission accuracy and equipment life. Furthermore, they lack effective overload protection mechanisms, which can easily damage key components like motors when loads suddenly increase, making them unable to meet the increasingly complex and diverse demands of mechanical transmission. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a worm transmission damper in view of the current status of the existing technology.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: a worm drive damper, including a box body, a worm gear drive assembly is arranged in the box body, an electronic control assembly is arranged outside the box body, the worm gear drive assembly includes a central shaft, a worm, a worm wheel, an elastic member and a fixed transmission assembly, the fixed transmission assembly includes a worm fixed transmission member and a worm wheel fixed transmission member, the central shaft and the worm wheel are both arranged in the box body up and down through the worm fixed transmission member and the worm wheel fixed transmission member, the worm is passed through the central shaft, the worm wheel is arranged below the central shaft along the worm, the worm is meshed with the worm wheel, snail cavities are opened at both ends of the worm, and the elastic member is arranged in the snail cavity and passed through the central shaft.

[0006] The above components achieve the following: a compact, all-in-one design integrates the worm gear drive assembly and electronic control components within a housing structure. The meshing of the worm gear and worm, combined with the elastic element, delivers a stable and adjustable damping effect. Furthermore, a keyed, sliding fit on the central shaft creates left-right transmission play in the worm, enhancing torque output. The worm's adjustable movement, coupled with the elastic element, prevents damage to the motor caused by excessive torque, effectively buffering load shocks and protecting the motor from damage.

[0007] Preferably, the worm gear fixed transmission component includes a washer, a positioning plate and a first bearing and a second bearing arranged at both ends of the central shaft; the box body is provided with a first opening and a second opening along both sides of the central shaft, the positioning plate is arranged in the first opening along one end of the outer surface of the box body, one end of the central shaft is passed through the first bearing and is arranged in the positioning plate and in the first opening, the other end of the central shaft is arranged in the second opening through the second bearing, and the washer is arranged on one side of the fourth bearing and is arranged in the fourth opening.

[0008] The above components achieve the following: The washer, positioning plate, and first and second bearings in the worm gear transmission provide stable support and precise positioning for the central shaft, ensuring smooth rotation, reducing wear and deviation, and enhancing transmission stability and accuracy. This design also facilitates the flexible movement of the worm gear, further protecting the motor.

[0009] Preferably, the worm gear fixed transmission component includes a fixed block, a fixed plate and a third bearing and a fourth bearing arranged at both ends of the worm gear. A transmission shaft is extended on both sides of the worm gear. The third bearing and the fourth bearing are respectively arranged on the transmission shafts on both sides. The box body is provided with a third opening and a fourth opening along both sides of the transmission shaft. The fixed block is arranged in the third opening along one end of the outer surface of the box body, and the fixed plate is arranged in the fourth opening. One end of the transmission shaft is clamped with the fixed block through the third bearing and is arranged in the third opening. The other end of the transmission shaft is clamped in the fixed plate through the fourth bearing and is arranged in the fourth opening.

[0010] The aforementioned components achieve the following: the fixed block, fixed plate, and third and fourth bearings in the worm gear transmission ensure accurate positioning and stable transmission of the worm gear, effectively preventing wobble and displacement during operation, thereby improving transmission efficiency and reliability. Furthermore, this ensures the worm's flexible movement and reduces the risk of motor damage.

[0011] Preferably, the electronic control component includes a control box, a transmission motor and a motor box. The control box is arranged on any side of the box surface and is electrically connected to the transmission motor. A motor shaft is provided on the transmission motor. The transmission motor is arranged on the outer surface of the box along the second opening. The motor shaft is passed through the second opening and connected to the central axis. The motor box is sleeved on the transmission motor and fixed on the outer surface of the box.

[0012] The result of these components is that the control box in the electronic control assembly precisely controls the operation of the transmission motor, and the connection between the motor shaft and the central shaft ensures efficient power transmission. The motor box protects the transmission motor and ensures stable and safe operation. This precise electronic control and stable power transmission help protect the motor from damage caused by abnormal loads.

[0013] Preferably, a groove is provided in the box body along the inner surface below the worm gear, and a gap is provided between the groove and the worm gear.

[0014] The effects achieved by the above components are: the design of the groove below the worm gear in the box provides a buffer space for the operation of the worm gear, reduces the direct friction and collision between the worm gear and the box, reduces noise and wear, and also alleviates the impact on the motor to a certain extent.

[0015] Preferably, a cover plate is provided at the upper end of the box body, and a fixed footing is provided at the bottom of the box body.

[0016] The effects achieved by the above components are: the fixed base feet at the bottom of the box facilitate the installation and fixation of the damper, enhance its stability during operation, and reduce damage to the motor caused by factors such as vibration.

[0017] Compared with the existing technology, the advantages of the present invention are: the worm gear transmission component and the electronic control component are integrated through the setting of the box to achieve a compact structure; the meshing transmission of the worm wheel and the worm combined with the elastic parts provide a stable and adjustable damping effect; the worm fixed transmission component and the worm gear fixed transmission component ensure the stable installation, precise positioning and reliable transmission of the shaft and wheel, reducing friction and wear; the electronic control component realizes precise control of the rotation of the central shaft and flexibly adjusts the working state; the groove in the box provides a buffer for the operation of the worm gear and reduces wear noise; the fixed base at the bottom facilitates installation and fixation, and enhances working stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 It is a structural diagram of the utility model;

[0021] Figure 4 It is a schematic diagram of the internal structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the box body of the present utility model;

[0023] Figure 6 It is a schematic diagram of the cross-sectional structure of the box body of the present utility model;

[0024] Figure markings: 1. housing; 2. worm gear transmission assembly; 3. electronic control assembly; 4. center shaft; 5. worm; 6. worm wheel; 7. elastic member; 8. fixed transmission assembly; 9. worm fixed transmission member; 10. worm wheel fixed transmission member; 11. washer; 12. positioning plate; 13. first bearing; 14. second bearing; 15. first opening; 16. second opening; 17. fixing block; 18. fixing plate; 19. third bearing; 20. fourth bearing; 21. transmission shaft; 22. third opening; 23. fourth opening; 24. control box; 25. transmission motor; 26. motor box; 27. groove; 28. fixing base; 29. ​​motor shaft. DETAILED DESCRIPTION

[0025] The following diagrams illustrate various embodiments of the present invention. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not essential. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form.

[0026] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back... are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] Moreover, some of the above-mentioned terms may be used to express other meanings in addition to indicating orientation or positional relationships. For example, the term "on" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For ordinary technicians in this field, the specific meanings of these terms in this utility model can be understood according to the specific circumstances.

[0028] Furthermore, the terms "installed," "disposed," "equipped with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal connections between two devices, elements, or components. The connection methods discussed herein are prior art and are common knowledge to those skilled in the art without modification. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0029] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] In this embodiment 1,

[0031] like Figure 1 As shown, the utility model provides a worm 5 transmission damper, including a housing 1, a worm gear transmission assembly 2 is arranged in the housing 1, an electronic control assembly 3 is arranged on the outside of the housing 1, the worm gear transmission assembly 2 includes a central shaft 4, a worm 5, a worm wheel 6, an elastic member 7 and a fixed transmission assembly 8, the fixed transmission assembly 8 includes a worm fixed transmission member 9 and a worm wheel fixed transmission member 10, the central shaft 4 and the worm wheel 6 are both arranged in the housing 1 up and down through the worm fixed transmission member 9 and the worm wheel fixed transmission member 10, the worm 5 is passed through the central shaft 4, the worm wheel 6 is arranged below the central shaft 4 along the worm 5, the worm 5 is meshed with the worm wheel 6, a snail cavity is opened at both ends of the worm 5, and the elastic member 7 is arranged in the snail cavity and passed through the central shaft 4.

[0032] By integrating the worm gear assembly 2 and the electronic control assembly 3 into the housing 1, a compact, integrated design is achieved. The meshing of the worm wheel 6 and worm 5, combined with the elastic member 7, creates a stable and adjustable damping effect. Furthermore, the keyed pin on the central shaft 4 provides a left-right transmission gap in the worm 5, enhancing torque output. The worm 5 is also adjustable via the elastic member 7, preventing damage to the motor from excessive torque and effectively buffering load shocks, protecting the motor from damage.

[0033] The worm gear fixed transmission component 9 includes a washer 11, a positioning plate 12, and a first bearing 13 and a second bearing 14 arranged at both ends of the central shaft 4; the box body 1 is provided with a first opening 15 and a second opening 16 along both sides of the central shaft 4, the positioning plate 12 is arranged in the first opening 15 along one end of the outer surface of the box body 1, one end of the central shaft 4 is passed through the first bearing 13 and is arranged in the first opening 15 in the positioning plate 12, and the other end of the central shaft 4 is arranged in the second opening 16 through the second bearing 14, and the washer 11 is arranged in the fourth opening 23 on one side of the fourth bearing 20.

[0034] The washer 11, positioning plate 12, and first and second bearings 14 in the worm gear transmission element 9 provide stable support and precise positioning for the central shaft 4, ensuring smooth rotation of the central shaft 4, reducing wear and deviation, and enhancing transmission stability and accuracy. This design also facilitates the flexible movement of the worm 5 and further protects the motor.

[0035] The worm gear fixed transmission component 10 includes a fixed block 17, a fixed plate 18, and a third bearing 19 and a fourth bearing 20 arranged at both ends of the worm gear 6. A transmission shaft 21 is extended on both sides of the worm gear 6. The third bearing 19 and the fourth bearing 20 are respectively arranged on the transmission shaft 21 on both sides. The box body 1 is provided with a third opening 22 and a fourth opening 23 along both sides of the transmission shaft 21. The fixed block 17 is arranged in the third opening 22 along one end of the outer surface of the box body 1, and the fixed plate 18 is arranged in the fourth opening 23. One end of the transmission shaft 21 is clamped with the fixed block 17 through the third bearing 19 and is arranged in the third opening 22. The other end of the transmission shaft 21 is clamped in the fixed plate 18 through the fourth bearing 20 and is arranged in the fourth opening 23.

[0036] The fixing block 17, fixing plate 18, and third and fourth bearings 20 in the worm gear transmission assembly 10 ensure accurate positioning and stable transmission of the worm gear 6, effectively preventing wobble and displacement of the worm gear 6 during operation, thereby improving transmission efficiency and reliability. Furthermore, this ensures the flexible movement of the worm 5 and reduces the risk of motor damage.

[0037] The electronic control component 3 includes a control box 24, a transmission motor 25 and a motor box 26. The control box 24 is arranged on any side of the surface of the box body 1 and is electrically connected to the transmission motor 25. The transmission motor 25 is provided with a motor shaft 29. The transmission motor 25 is arranged on the outer surface of the box body 1 along the second opening 16. The motor shaft 29 is passed through the second opening 16 and is connected to the central axis 4. The motor box 26 is sleeved on the transmission motor 25 and fixed on the outer surface of the box body 1.

[0038] The control box 24 in the electronic control assembly 3 precisely controls the operation of the transmission motor 25. The connection between the motor shaft 29 and the central shaft 4 ensures efficient power transmission. The motor box 26 protects the transmission motor 25 and ensures stable and safe operation. This precise electronic control and stable power transmission help protect the motor from damage caused by abnormal loads.

[0039] A groove 27 is provided in the box body 1 along the inner surface below the worm gear 6 , and a gap is provided between the groove 27 and the worm gear 6 .

[0040] The design of the groove 27 below the worm gear 6 in the housing 1 provides a buffer space for the operation of the worm gear 6, reduces the direct friction and collision between the worm gear 6 and the housing 1, reduces noise and wear, and also alleviates the impact on the motor to a certain extent.

[0041] A cover plate 30 is provided at the upper end of the box body, and a fixed footing 28 is provided at the bottom of the box body 1.

[0042] The fixed footing 28 at the bottom of the housing 1 facilitates the installation and fixation of the damper, thereby enhancing its stability during operation and reducing damage to the motor caused by factors such as vibration.

[0043] like Figure 1 As shown, the worm gear transmission component 2 and the electronic control component 3 are integrated into the housing 1 to achieve a compact structure; the meshing transmission of the worm wheel 6 and the worm 5 combined with the elastic member 7 provides a stable and adjustable damping effect; the worm fixed transmission component 9 and the worm gear fixed transmission component 10 ensure the stable installation, precise positioning and reliable transmission of the shaft and wheel, reducing friction and wear; the electronic control component 3 realizes precise control of the rotation of the central shaft 4 and flexibly adjusts the working state; the groove 27 in the housing 1 provides a buffer for the operation of the worm wheel 6 and reduces wear noise; the bottom fixed base 28 facilitates installation and fixation, and enhances working stability.

[0044] In this embodiment 2,

[0045] like Figure 1 As shown in the figure, the working principle of the utility model is:

[0046] The control box 24 in the electric control assembly 3 controls the transmission motor 25. The transmission motor 25 starts and its motor shaft 29 rotates. The motor shaft 29 passes through the second opening 16 of the box body 1 and is connected to the central shaft 4, driving the central shaft 4 to rotate.

[0047] The worm 5 provided on the central shaft 4 rotates accordingly, and the worm wheel 6 meshing with the worm 5 starts to run under the drive of the worm 5 .

[0048] During operation, the elastic members 7 arranged in the volute cavities at both ends of the worm 5 play a regulating role, which can change the damping effect of the worm wheel 6 and the worm 5 transmission.

[0049] The worm gear 6 rotates stably inside the box 1 through the transmission shafts 21 at both ends and the corresponding bearings.

[0050] A groove 27 provided along the inner surface below the worm gear 6 in the housing 1 provides a certain space for the operation of the worm gear 6 .

[0051] The whole process realizes the stable operation of the damper and the adjustment of the damping effect through the coordinated work of various components.

[0052] In the description of this specification, reference is made to the terms "one embodiment", "some embodiments", "examples", "specific examples", etc.

[0053] Descriptions such as "example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in an appropriate manner. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without contradiction.

[0054] The standard parts used in this utility model can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as bolts, rivets, welding, and bonding in the existing technology, which will not be described in detail here.

[0055] The above content is only a preferred embodiment of the present invention. For ordinary technicians in this field, various changes and variations can be made in the specific implementation methods and application scope based on the concept of the present invention. The content of this specification should not be understood as a limitation of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A worm drive damper, characterized in that: It includes a box body, a worm gear transmission assembly is arranged in the box body, and an electronic control assembly is arranged on the outside of the box body. The worm gear transmission assembly includes a central shaft, a worm, a worm wheel, an elastic member and a fixed transmission assembly. The fixed transmission assembly includes a worm fixed transmission member and a worm wheel fixed transmission member. The central shaft and the worm wheel are both arranged in the box body up and down through the worm fixed transmission member and the worm wheel fixed transmission member. The worm is passed through the central shaft, and the worm wheel is arranged below the central shaft along the worm. The worm is meshed with the worm wheel, and a snail cavity is opened at both ends of the worm. The elastic member is arranged in the snail cavity and passed through the central shaft.

2. A worm drive damper according to claim 1, characterized in that: The worm gear fixed transmission component includes a washer, a positioning plate and a first bearing and a second bearing arranged at both ends of the central shaft; the box body is provided with a first opening and a second opening along both sides of the central shaft, the positioning plate is arranged in the first opening along one end of the outer surface of the box body, one end of the central shaft is passed through the first bearing and is arranged in the positioning plate and in the first opening, the other end of the central shaft is arranged in the second opening through the second bearing, and the washer is arranged on one side of the fourth bearing and is arranged in the fourth opening.

3. The worm drive damper according to claim 1, characterized in that: The worm gear fixed transmission component includes a fixed block, a fixed plate, and a third bearing and a fourth bearing arranged at both ends of the worm gear. A transmission shaft is extended on both sides of the worm gear. The third bearing and the fourth bearing are respectively arranged on the transmission shafts on both sides. The box body is provided with a third opening and a fourth opening along both sides of the transmission shaft. The fixed block is arranged in the third opening along one end of the outer surface of the box body, and the fixed plate is arranged in the fourth opening. One end of the transmission shaft is clamped with the fixed block through the third bearing and is arranged in the third opening. The other end of the transmission shaft is clamped in the fixed plate through the fourth bearing and is arranged in the fourth opening.

4. The worm drive damper according to claim 1, characterized in that: The electronic control component includes a control box, a transmission motor and a motor box. The control box is arranged on any side of the box surface and is electrically connected to the transmission motor. The transmission motor is provided with a motor shaft. The transmission motor is arranged on the outer surface of the box along the second opening. The motor shaft is passed through the second opening and connected to the central axis. The motor box is sleeved on the transmission motor and fixed on the outer surface of the box.

5. The worm drive damper according to claim 1, characterized in that: A groove is provided in the box body along the inner surface below the worm gear, and a gap is provided between the groove and the worm gear.

6. The worm drive damper according to claim 1, characterized in that: The upper end of the box body is provided with a cover plate, and the bottom of the box body is provided with a fixed footing.