Self-locking and unlocking structure of worm and gear speed reducer

Abstract

The utility model discloses a self-locking and unlocking structure of a worm and gear speed reducer. The self-locking and unlocking structure comprises a power on-off control module, a positioning and limiting module, a protection buffering module and a clutch control module. According to the utility model, the device can be ensured not to be easily opened by external force when needing to be kept closed, so that accidents are effectively prevented; a self-locking and unlocking function is added, the device can be unlocked in time when needed, mechanical damage caused by long-time locking of the device is reduced, the overall durability and reliability of the device are improved, the functionality and the integration degree of the device are remarkably improved through the modular design, all the modules perform their own functions and work cooperatively, and the device is convenient to use. The power transmission and cut-off process is optimized, the performance of positioning, limiting, protection and clutch control is greatly enhanced, a solid foundation is laid for stable and reliable operation of the worm and gear speed reducer under various complex working conditions, and the limitation of traditional single-function design is comprehensively exceeded.

Description

TECHNICAL FIELD

[0001] The utility model relates to worm gear reducer self locking unlocking technical field, concretely is a worm gear reducer self locking unlocking structure. BACKGROUND

[0002] The door opener uses a worm gear reducer, and the basic structure of the door opener includes a motor, a speed regulation mechanism, and a clutch device and other key components. Among them, the motor provides stable power output for the operation of the entire door opener, the speed regulation mechanism is responsible for adjusting the output of the motor, and the speed and torque are adjusted according to the actual situation to ensure that the power of the motor can be effectively transmitted to the door body to adapt to different needs. The clutch device is responsible for connecting the motor and the door body to ensure the stability and safety of the door body during opening and closing.

[0003] The traditional door opener clutch device has good self-locking function. In the process of assembly, the bearing is aligned and installed with the worm through the positioning pin, and the bearing is tightly attached to the worm to realize self-locking by the elastic force of the spring. The explanation of self-locking is that when the input end stops rotating, the output end will not reverse, which is especially suitable for the device that needs to maintain the position stable and prevent accidental reverse.

[0004] In the use process of the above-mentioned device, if an accident occurs, manual self-locking and unlocking are needed for subsequent operation, and the traditional door opener clutch cannot realize the function of self-locking and unlocking. UTILITY MODEL CONTENTS

[0005] In order to solve the problems in the above background art, the purpose of the utility model is to provide a worm gear reducer self locking unlocking structure, which has the advantages of convenient use and high stability.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a worm gear reducer self locking unlocking structure, including power on-off control module, positioning limiting module, protection buffer module, clutch control module;The power on-off control module includes output shaft, worm, realizes power connection and cut-off function;The positioning limiting module contains cylindrical pin, positioning pin, dial, hole check ring, key, spring, realizes positioning and limiting function, the protection buffer module contains washer, spring, realizes buffering and protection function, the clutch control module contains hexagonal screw, left-handed screw, spring, realizes clutch control function.

[0007] As preferred in the utility model, the output shaft is the shaft connecting the driving and output devices in the overall device mechanical transmission;The main body side is connected with the motor, and the transmission obtains the power generated by the motor;The other side of the output shaft in the worm is connected with the door opener, and the obtained motor power is converted into the rotary power of mechanical work.

[0008] The cylindrical pin is located inside the output shaft, is used for accurately determining the relative positions among the plurality of parts, and ensures that the main shaft of the dial and the worm wheel are in the same straight line; the positioning pin is a circular protrusion on the surface of the worm wheel, is located on the side of the inner surface of the worm wheel close to the dial; the dial contains a circular through hole and is matched with the positioning pin on the surface of the worm wheel; the dial also contains a groove matched with the size of the key, facilitates the positioning connection with the key, the key and the groove of the dial both have through holes, the key is clamped into the groove of the dial, and limiting is realized through the bolt at the same time; the hole is installed in the circular hole by the check ring, and is used for axially fixing the key and the dial; the key is combined with the spring, the dial and the worm wheel can be tightly attached, and the limiting function of the dial in the direction of the driving shaft is realized.

[0009] The gasket is assembled between the connected part and the nut, direct contact between the parts is avoided, and the parts are protected from being scratched; the gasket increases the contact area between the nut and the connected part, disperses the pressure acting on the connected part, and protects the connected part from being deformed; the spring is located in the internal space of the main shaft, is connected with the key, absorbs impact energy by elastic deformation, moderates impact force, and reduces vibration amplitude.

[0010] The hexagonal screw is shaped outward from the left-handed thread releasing screw; the left-handed thread releasing screw is connected with the dial through the key; threads are processed in the middle section of the left-handed thread releasing screw, and corresponding threads are processed in the corresponding interval in the internal space of the driving shaft, the key and the dial are pressed and fixed by rotating the left-handed thread releasing screw through a hexagonal wrench during assembly; the spring and the left-handed thread releasing screw are located on both sides of the dial, in the normal operation process of the worm wheel and worm reducer, the spring provides pressure by using self-deformation, the dial is tightly connected with the worm wheel, and it is ensured that the two will not be separated in normal work; when manual separation of the driving part and the driven part is needed, the left-handed thread releasing screw is rotated, the dial is pressed and the spring is compressed at the same time, when the displacement distance of the dial exceeds the thickness of the positioning pin on the surface of the worm wheel after the spring is compressed to a certain extent, the dial and the worm wheel are unlocked.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. The utility model discloses a device that can be kept closed, effectively preventing accidents from happening, and a self-locking and unlocking function is added, so that the device can be unlocked in time when needed, reducing mechanical damage caused by long-term locking and improving the overall durability and reliability of the device.

[0013] 2. The utility model discloses a self-locking and unlocking function, greatly simplifying the device operation process. Users can easily switch the locking and unlocking state of the device according to different scene requirements, significantly improving the convenience. In high-intensity operation scenarios, the self-locking function automatically intervenes to ensure stable operation of the device, greatly improving work efficiency and effectively saving users' time and effort, making work more smooth and efficient. In scenarios such as warehouses and logistics channels that need to be kept open, users only need to simply operate the unlocking self-locking state to quickly achieve the constant opening of the door machine, meet the special needs of specific scenarios, and fully demonstrate the powerful functional adaptability and flexibility of the utility model.

[0014] 3. In most application scenarios of the utility model, related equipment needs regular maintenance. In the traditional case, if the device is in the self-locking state, the inspector often needs to spend extra time and effort to deal with the self-locking structure when carrying out inspection and repair work, not only significantly increasing the time cost, but also possibly causing unnecessary damage to the equipment during improper operation, leading to further rising maintenance costs. The unique self-locking and unlocking function of the utility model can conveniently release the self-locking state for the inspector, quickly enter the equipment maintenance link, greatly shorten the maintenance time, effectively reduce the time cost, avoid many potential troubles for the user, and realize efficient and low-cost equipment maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The utility model discloses an appearance structure diagram installed completely;

[0016] Figure 2 The utility model discloses an overall all parts display of the utility model;

[0017] Figure 3 The utility model discloses a spring flat key installation schematic diagram of the utility model;

[0018] Figures 4~6 Figure is the installation schematic diagram of the dial nut of the utility model;

[0019] Figures 7~8 Figure is the installation schematic diagram of the left-hand thread screw and cylindrical pin of the utility model;

[0020] Figure 9 Figure is the installation schematic diagram of the worm gear of the utility model;

[0021] Figures 10~11 Figure is the structure schematic diagram of the self-locking and unlocking of the clutch control module of the utility model.

[0022] In the figure: 1, output shaft; 2, spring; 3, flat key; 4, dial; 5, worm gear; 6, cylindrical pin; 7, left-hand thread screw; 8, nut; 9, flat key positioning pin; 10, flat key nut mounting hole; 11, dial through hole; 12, worm gear positioning pin; 13, cylindrical pin positioning pin; 14, left-hand thread screw positioning hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] As shown in Figures 1 to 11 A worm gear reducer self-locking and unlocking structure, comprising a power on-off control module, a positioning limiting module, a protection and buffering module, and a clutch control module. The power on-off control module comprises an output shaft 1 and a worm gear 5, and realizes power connection and cut-off function. The positioning limiting module comprises a cylindrical pin 6, a positioning pin, a dial 4, a hole stop ring, a flat key 3, and a spring 2, and realizes positioning and limiting function. The protection and buffering module comprises a washer and a spring 2, and realizes buffering and protection function. The clutch control module comprises a hexagonal screw, a left-hand thread screw 7, and a spring 2, and realizes clutch control function.

[0025] Referring to Figure 2 , the output shaft 1 is the shaft connecting driving and output equipment in the overall device mechanical transmission; the main body is connected with a motor on one side, and obtains power generated by the motor; the other side of the output shaft 1 is connected with the worm gear 5, and the worm gear 5 is connected with a door opener, so as to convert the motor power into rotary power of mechanical work.

[0026] As a technical optimization scheme of the utility model, through the output shaft 1 as the core component of connecting drive and output device, one end is closely connected with motor, high -efficient transmission motor power, the other end precisely links worm wheel 5, seamlessly the motor power is converted into mechanical work rotation type power. Its accurate connection and power transmission mode, ensure that the motor output power is used efficiently, effectively reduces energy loss, significantly improves the transmission efficiency of the whole worm wheel 5 worm reduction gear, compared with traditional connection mode, can realize stronger, stable power output with lower energy consumption, greatly improve equipment operation efficiency.

[0027] Reference Figure 2 Cylindrical pin 6 is located inside the output shaft 1, for accurately determining the relative position between multiple parts, ensure that the dial 4 and the spindle of the worm wheel 5 are on the same straight line;The positioning pin is a circular protrusion on the surface of the worm wheel 5, located on the inner surface of the worm wheel 5 close to the dial 4 side;Dial 4 contains a circular hole, matched with the positioning pin on the surface of the worm wheel 5;Dial 4 also contains a recess matched with the size of the key 3, which facilitates the positioning connection with the key 3;The key 3 and the recess of the dial 4 both have through holes, and the key 3 is clamped into the recess of the dial 4 at the same time, and the limiting is realized through the bolt;The hole is installed in the circular hole with a check ring, which is used to axially fix the key 3 and the dial 4;The key 3 is combined with the spring 2, which can make the dial 4 and the worm wheel 5 tightly adhere to each other, realize the limiting function of the dial 4 in the direction of the driving shaft.

[0028] As a technical optimization scheme of the utility model, through the positioning and limiting module composed of cylindrical pin 6, positioning pin, dial 4, hole check ring, key 3 and spring 2, excellent positioning and limiting effect is achieved. Cylindrical pin 6 ensures that the dial 4 and the spindle of the worm wheel 5 are accurately collinear, the precise matching of the positioning pin and the dial 4, combined with the ingenious design of the key 3, the hole check ring and the spring 2, realizes the stable limiting of the dial 4 in the direction of the driving shaft, effectively prevents displacement and misplacement between parts, greatly improves the stability and reliability of the device operation, ensures the accuracy of power transmission, compared with the traditional positioning mode, the positioning accuracy is higher, and the equipment runs more smoothly.

[0029] Reference Figure 2 And Figure 4 The washer is assembled between the connected part and the nut 8, which avoids direct contact between parts and protects the parts from being scratched. The washer increases the contact area between the nut 8 and the connecting part, disperses the pressure acting on the connecting part, and protects the connecting part from deformation. The spring 2 is located in the internal space of the spindle, connected with the key 3, absorbs impact energy by elastic deformation, moderates impact force and reduces vibration amplitude.

[0030] As a technical optimization scheme of the utility model, the protection buffer module composed of the gasket and the spring 2 provides comprehensive protection for the device. The gasket is installed between the connected part and the nut 8, which not only avoids direct contact of parts to prevent scratching damage, but also effectively disperses pressure by increasing the contact area to protect the connected part from deformation. The internal spring 2 cleverly utilizes elastic deformation to absorb impact energy, significantly reducing impact force and vibration amplitude. This design greatly prolongs the service life of key parts of the device, reduces the failure rate of the equipment, and significantly extends the equipment maintenance cycle and reduces the operating cost compared with the design without protection and buffer.

[0031] Reference Figure 2 The hexagonal screw is outwardly shaped as a left-handed screw 7. The left-handed screw 7 is connected to the dial 4 through the flat key 3. The left-handed screw 7 has threads in the middle section, and the corresponding threads are processed in the corresponding interval inside the driving shaft. When assembling, the flat key 3 and the dial 4 are pressed by rotating the left-handed screw 7 with a hexagonal wrench. The spring 2 and the left-handed screw 7 are located on both sides of the dial 4. During the normal operation of the worm gear 5 and the worm reducer, the spring 2 provides pressure by deforming itself, making the dial 4 and the worm gear 5 tightly connected, ensuring that they will not be separated during normal operation. When manual separation of the driving and driven parts is needed, the dial 4 is pressed and the spring 2 is compressed by rotating the left-handed screw 7. After the spring 2 is compressed to a certain extent, the dial 4 is displaced beyond the thickness of the positioning pin on the surface of the worm gear 5, achieving the unlocking of the dial 4 and the worm gear 5.

[0032] As a technical optimization scheme of the utility model, the clutch control module composed of the hexagonal screw, the left-handed screw 7 and the spring 2 exhibits unique clutch control advantages. During the normal operation of the worm gear 5 and the worm reducer, the spring 2 provides pressure by deforming itself, making the dial 4 and the worm gear 5 tightly connected, ensuring stable power transmission and preventing accidental separation of the parts. When facing an emergency situation and needing to manually separate the driving and driven parts, only the left-handed screw 7 needs to be rotated with a hexagonal wrench to quickly compress the spring 2 and push the dial 4 to displace, achieving quick unlocking. This design is easy to operate and respond quickly, providing an efficient solution to emergency situations and greatly improving the convenience and emergency handling capability of the equipment, with obvious advantages over similar products.

[0033] The utility model discloses a working principle and use flow: when using, output shaft 1 is as the main body of worm gear reducer of worm 5, connects external device and realizes kinetic energy transmission, in the process of installation, first, spring 2 is installed into output shaft 1 inside through the opening of output shaft 1 top, installs and is pressed into with spring 2 aligning with the flat key positioning pin 9, prevents the separation of spring 2 in the use process, then dial 4 is sleeved on output shaft 1, and flat key 3 is installed into the recess of dial 4, after the installation of flat key 3 corresponding recess, using nut 8 is installed in flat key nut mounting hole 10 to make dial 4 and flat key 3 form an entirety, because flat key 3 is installed through the lateral through -hole of output shaft 1, so the movement of dial 4 flat key 3 entirety is limited, and does the same circumferential motion with output shaft 1, then from output shaft 1 top opening put in cylindrical pin 6 and release left -hand thread screw 7, and the bottom of cylindrical pin 6 is close to the top of flat key 3, and release left -hand thread screw positioning hole 14 is installed in alignment with cylindrical pin positioning pin 13, and a positioning pin is distributed on the upper surface of worm gear 5, in the process of installing worm gear 5, worm gear 5 is sleeved into output shaft 1, and worm gear positioning pin 12 is pressed into alignment with dial through -hole 11 by rotating worm gear 5, thereby completing the installation of worm gear 5, finally, all parts are installed and realize the self -locking state;

[0034] The utility model discloses in the use process, inside spring 2 is deformed with the elasticity of spring 2 and is pressed together with flat key 3 and dial 4 this entirety tightly with worm gear 5 and forms an entirety, and the top has release left -hand thread screw 7 and cylindrical pin 6 whole and presses flat key 3 and dial 4 whole, prevents the displacement of dial 4, and the axial direction position of external worm gear 5 is connected power providing device, turbine, and such formation worm gear 5 worm gear reducer in the self -locking state of rotation in the working process, through the wrench rotation of outside, spring 2 is compressed, and dial 4 moves along the axial direction of output shaft 1, after moving a certain distance, worm gear positioning pin 12 and dial through -hole 11 are separated, and from the side, can obviously see that dial 4 and worm gear 5 are separated and stuck, and at this moment, dial 4 and output shaft 1 are no longer because with worm gear 5 integral and are limited circumferential motion, and at this moment, intervention external force can rotate the external device connected output shaft 1 easily, that is, output shaft 1 can be forward rotation also can be reverse rotation, namely realizes the conversion of worm gear 5 worm gear reducer from self -locking state to self -locking unlocking state, and the sudden situation is handled conveniently.

[0035] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0036] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A worm gear reducer self-locking unlocking structure, comprising a power on-off control module, a positioning limiting module, a protection and buffering module, and a clutch control module; characterized in that: The power on-off control module includes an output shaft (1) and a worm gear (5), which realize the power connection and cutting-off function; the positioning and limiting module includes a cylindrical pin (6), a positioning pin, a dial (4), a hole stop ring, a flat key (3) and a spring (2), which realize the positioning and limiting function; the protection and buffering module includes a washer and a spring (2), which realize the buffering and protection function; the clutch control module includes a hexagonal screw, a left-handed screw (7) and a spring (2), which realize the clutch control function.

2. A worm wheel and worm speed reducer self-locking and unlocking structure according to claim 1, characterized in that: The output shaft (1) is a shaft connecting the driving and output devices in the overall device mechanical transmission; one side of the main body is connected with the motor, and the transmission obtains the power generated by the motor; the other side of the output shaft (1) is connected with the worm gear (5) inside, and the door opener is connected outside, which converts the motor power obtained into the rotary power of mechanical work.

3. The self-locking and unlocking structure of a worm and gear speed reducer according to claim 1, characterized in that: The cylindrical pin (6) is located inside the output shaft (1) and is used to accurately determine the relative position between multiple parts, so as to ensure that the main shaft of the dial (4) and the worm gear (5) are on the same straight line; the positioning pin is a circular protrusion on the surface of the worm gear (5) and is located on the inner surface of the worm gear (5) close to one side of the dial (4); the dial (4) contains a circular through hole and matches the positioning pin on the surface of the worm gear (5); the dial (4) also contains a groove matched with the flat key (3) in size, which facilitates the positioning connection with the flat key (3); the flat key (3) and the groove of the dial (4) both have through holes, and the flat key (3) is clamped into the groove of the dial (4) at the same time, and the limiting is realized through the bolt; the hole stop ring is installed in the circular hole to axially fix the flat key (3) and the dial (4); the flat key (3) is combined with the spring (2) to tightly adhere the dial (4) and the worm gear (5), and realize the limiting function of the dial (4) in the direction of the driving shaft.

4. The self-locking and un-locking structure of a worm and gear speed reducer according to claim 1, characterized in that: The washer is assembled between the connected part and the nut (8) to avoid direct contact between the parts and protect the parts from being scratched; the washer increases the contact area between the nut (8) and the connected part, disperses the pressure acting on the connected part, and protects the connected part from deformation; the spring (2) is located in the internal space of the main shaft and is connected with the flat key (3), which absorbs impact energy by elastic deformation, mitigates impact force, and reduces vibration amplitude.

5. A worm reduction machine self-locking unlocking structure according to claim 1, characterized in that: The hexagonal screw is outwardly shaped to the left-handed screw (7); the left-handed screw (7) is connected with the dial (4) through the flat key (3); the middle section of the left-handed screw (7) is processed with threads, and the corresponding section inside the driving shaft is processed with corresponding threads, so that the flat key (3) and the dial (4) are pressed tightly by rotating the left-handed screw (7) through a hexagonal wrench during assembly; the spring (2) and the left-handed screw (7) are located on both sides of the dial (4), and during the normal operation of the worm gear (5) and the worm reducer, the spring (2) provides pressure by using its own deformation to make the dial (4) and the worm gear (5) closely connected, so that they will not be separated during normal work; when manual separation of the driving and driven parts is needed, the left-handed screw (7) is rotated to compress the spring (2) while exerting pressure on the dial (4), and when the dial (4) is displaced by a distance exceeding the thickness of the positioning pin on the surface of the worm gear (5) after the spring (2) is compressed to a certain extent, the dial (4) and the worm gear (5) are unlocked.

Images