Large-torque brushless outer rotor matched worm and gear structure reduction gearbox

Abstract

The invention relates to the technical field of reduction gearboxes, and discloses a large-torque brushless outer rotor matched worm and gear structure reduction gearbox which comprises a box body, a motor is fixedly connected to one side of the outer portion of the box body, a connecting rod is fixedly connected to the output end of the motor, and a speed reducing mechanism is arranged in the box body. A mounting frame is fixedly connected to one side of the exterior of the box body, the mounting frame is used for providing a mounting position, a cooling mechanism is arranged in the mounting frame, the cooling mechanism can dissipate heat for the speed reducing mechanism, an auxiliary heat dissipation mechanism is arranged in the mounting frame, and the auxiliary heat dissipation mechanism can dissipate heat for the speed reducing mechanism. The auxiliary heat dissipation mechanism can accelerate heat dissipation of liquid in the cooling mechanism. The cooling mechanism can dissipate heat of the reduction gearbox through heat conduction, so that the reduction gearbox cannot be damaged due to temperature rise after being used for a long time, the service life of the reduction gearbox is prolonged, economic losses are avoided, and meanwhile the mechanical self-locking function can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of reduction gearboxes, in particular to a reduction gearbox with a large-torque brushless outer rotor and a worm gear structure. Background Art

[0002] The high-torque brushless outer rotor gearbox is a high-performance power transmission device. It utilizes a brushless outer rotor motor, characterized by high efficiency, low noise, and durability. When paired with a gearbox, it delivers high torque output, meeting the needs of various applications requiring high torque, such as industrial automation equipment, robotics, and electric vehicles. Its compact design facilitates installation and integration, providing stable and reliable power support for equipment, effectively improving its efficiency and performance.

[0003] In the prior art, the reducer has a mechanical structure that transmits power internally, and the mechanical structure is prone to generate heat when used for a long time. Since the reducer needs to be lubricated internally, the reducer does not have heat dissipation holes, and generally does not have a relatively complete heat dissipation mechanism. Therefore, the reducer temperature is easily high when used for a long time, which in turn makes the reducer easily damaged, resulting in economic losses. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a high-torque brushless outer rotor combined with a worm gear structure reducer, which solves the problem that the brushless outer rotor reducer in the existing technology lacks a dedicated and complete heat dissipation structure, resulting in the reducer having a high temperature and being easily damaged when used for a long time, causing economic losses.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a large-torque brushless outer rotor combined with a worm gear structure reducer, including a box body, a motor is fixedly connected to the outer side of the box body, and a connecting rod is fixedly connected to the output end of the motor. A reduction mechanism is provided inside the box body, and an installation frame is fixedly connected to the outer side of the box body. The installation frame is used to provide an installation position, and a cooling mechanism is provided inside the installation frame. The cooling mechanism can dissipate heat for the reduction mechanism, and an auxiliary heat dissipation mechanism is provided inside the installation frame. The auxiliary heat dissipation mechanism can accelerate the heat dissipation of the liquid in the cooling mechanism.

[0006] Preferably, the deceleration mechanism includes a fixed shaft, which is rotatably connected to the inner side of the box body, the outer upper side of the fixed shaft is fixedly connected to a driving gear, the middle part of the fixed shaft is fixedly connected to a worm gear, the middle part of the box body is rotatably connected to a rotating column, the outer upper side of the rotating column is fixedly connected to a transmission gear, the outer lower side of the rotating column is fixedly connected to a conduction gear, the inner side of the box body is rotatably connected to an output shaft away from the motor, the middle part of the output shaft is fixedly connected to a driven gear, and the outer part of the connecting rod is fixedly connected to a worm gear.

[0007] Preferably, the cooling mechanism includes a water tank, one side of the water tank is fixedly connected to the outer side of the box body, a water pump is fixedly connected to the side of the box body close to the water tank, the input end of the water pump is fixedly connected to a liquid extraction pipe, the bottom of the liquid extraction pipe is arranged at the inner bottom end of the water tank, the output end of the water pump is fixedly connected to a cooling pipe, and the inside of the side of the mounting frame away from the box body is fixedly connected to a heat dissipation fin.

[0008] Preferably, the auxiliary heat dissipation mechanism includes a plurality of fixed cylinders, a side of the fixed cylinder close to the box body is fixedly connected to a side of the water tank away from the box body, an impeller is rotatably connected inside the fixed cylinder, a rotating rod is fixedly connected to the middle of the impeller, a plurality of mounting rings are fixedly connected inside the mounting frame, a fixing bracket is fixedly connected to the inner side of the mounting ring, a fan is rotatably connected to the side of the fixing bracket close to the fixed cylinder, a side of the fan close to the fixed cylinder is fixedly connected to a side of the rotating rod close to the fixed bracket, and a stirring blade is fixedly connected to the end of the rotating rod away from the fan.

[0009] Preferably, the bottom of the driving gear is fixedly connected to the top of the worm gear, and the bottom of the output shaft passes through the bottom of the box.

[0010] Preferably, the outside of the cooling pipe is wound around the outside of the box, and a section of the cooling pipe is arranged inside the heat dissipation fins.

[0011] Preferably, a water outlet pipe is fixedly connected to the bottom of one of the fixed cylinders, and one end of the water outlet pipe away from the fixed cylinder is fixedly connected to the inside of the water tank.

[0012] Preferably, the plurality of stirring blades are arranged inside the water tank, the end of the cooling pipe away from the water pump is fixedly connected to the top of one of the fixed cylinders, and the plurality of fixed cylinders are connected by a connecting pipe.

[0013] Preferably, the worm and the worm wheel are in meshing connection, and the driving gear and the transmission gear are in meshing connection.

[0014] Preferably, the transmission gear and the driven gear are in meshing connection, and the worm is arranged inside the box.

[0015] The present invention provides a high-torque brushless outer rotor combined with a worm gear structure reduction box. It has the following beneficial effects:

[0016] 1. The present invention can dissipate heat from the reduction gearbox by heat conduction through the cooling mechanism, and accelerate the cooling of the liquid after the heat is dissipated by the auxiliary heat dissipation mechanism, thereby reducing the temperature of the reduction gearbox while ensuring that the temperature of the heat dissipation liquid does not increase, thereby maintaining the heat dissipation effect and not reducing the heat dissipation effect. Therefore, the heat dissipation effect of the reduction gearbox can be guaranteed, so that the reduction gearbox will not be damaged due to temperature increase when used for a long time, thereby increasing the service life of the reduction gearbox and avoiding economic losses.

[0017] 2. The present invention uses a worm gear reduction structure to achieve mechanical self-locking after the motor of the reduction gearbox is powered off, thereby preventing external force from driving the reduction gearbox to rotate. In some devices that require self-locking, there is no need to use other locking structures or systems for locking. This makes it convenient to use and can also reduce production costs. In addition, since the output shaft of the reduction gearbox and the connecting rod are arranged vertically, the overall structure is short and suitable for occasions with strict restrictions on installation space, thereby expanding the scope of use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a three-dimensional Figure 1 ;

[0019] Figure 2 The present invention is a three-dimensional Figure 2 ;

[0020] Figure 3 The present invention is a three-dimensional Figure 3 ;

[0021] Figure 4 Schematic diagram of the internal structure of the box in the present invention;

[0022] Figure 5 Schematic diagram of the structure of the output shaft in the present invention;

[0023] Figure 6 Schematic diagram of the structure of the cooling pipe in the present invention;

[0024] Figure 7 Schematic diagram of the structure of the stirring blade in the present invention;

[0025] Figure 8 Schematic diagram of the structure of the impeller in the present invention;

[0026] Figure 9 It is a structural schematic diagram of the fixing frame in the present invention.

[0027] Among them, 1. Box body; 2. Motor; 3. Connecting rod; 4. Speed reduction mechanism; 401. Fixed shaft; 402. Drive gear; 403. Worm gear; 404. Rotating column; 405. Transmission gear; 406. Transmission gear; 407. Output shaft; 408. Driven gear; 409. Worm; 5. Mounting frame; 6. Cooling mechanism; 601. Water tank; 602. Water pump; 603. Liquid extraction pipe; 604. Cooling pipe; 605. Heat dissipation fins; 7. Auxiliary heat dissipation mechanism; 701. Fixed cylinder; 702. Impeller; 703. Rotating rod; 704. Mounting ring; 705. Fixed frame; 706. Fan; 707. Stirring blade; 708. Water outlet pipe; 709. Connecting pipe. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Please see the attached Figure 1 -Attached Figure 9 , an embodiment of the present invention provides a large-torque brushless outer rotor and a worm gear structure reduction box, including a box body 1, an outer side of the box body 1 is fixedly connected to a motor 2, the motor 2 can provide power, the output end of the motor 2 is fixedly connected to a connecting rod 3, the connecting rod 3 can transmit the rotational force, a reduction mechanism 4 is provided inside the box body 1, an outer side of the box body 1 is fixedly connected to a mounting frame 5, the mounting frame 5 is used to provide an installation position, a cooling mechanism 6 is provided inside the mounting frame 5, the cooling mechanism 6 can dissipate heat for the reduction mechanism 4, and an auxiliary heat dissipation mechanism 7 is provided inside the mounting frame 5, the auxiliary heat dissipation mechanism 7 can accelerate the heat dissipation of the liquid in the cooling mechanism 6, the rotor is located on the outside, has a larger diameter, a long magnetic circuit path, and can generate higher torque, and the outer rotor of the motor 2 is directly exposed to the air to form airflow when rotating, thereby accelerating heat dissipation.

[0030] The reduction mechanism 4 includes a fixed rotating shaft 401, which provides an installation position and can rotate. The fixed rotating shaft 401 is rotatably connected to one side of the interior of the box body 1, and a driving gear 402 is fixedly connected to the outer upper side of the fixed rotating shaft 401. A worm gear 403 is fixedly connected to the middle of the fixed rotating shaft 401. A rotating column 404 is rotatably connected to the middle of the box body 1. The rotating column 404 can rotate inside the box body 1. A transmission gear 405 is fixedly connected to the outer upper side of the rotating column 404, and a transmission gear 406 is fixedly connected to the outer lower side of the rotating column 404. The side of the interior of the box body 1 away from the motor 2 is rotatably connected to Output shaft 407, the middle part of output shaft 407 is fixedly connected with driven gear 408, the outside of connecting rod 3 is fixedly connected with worm 409, worm 409 can drive worm wheel 403 to rotate, and drive transmission gear 405 to rotate by driving gear 402, and then can use the rotation of transmission gear 405 to drive transmission gear 406 to rotate, and drive driven gear 408 to rotate by transmission gear 406, and then can make output shaft 407 rotate, the bottom of driving gear 402 is fixedly connected to the top of worm wheel 403, the bottom of output shaft 407 passes through the bottom of box body 1, worm There is a meshing connection between 409 and the worm wheel 403. The reduction structure of the worm wheel 403 and the worm 409 can achieve mechanical self-locking after the motor 2 is powered off, and then cannot be rotated by external force. The driving gear 402 and the transmission gear 405 are meshingly connected, and the transmission gear 406 and the driven gear 408 are meshingly connected. The worm 409 is arranged inside the box 1. When decelerating, the motor 2 is first started, and the output end of the motor 2 drives the connecting rod 3 to rotate. When the connecting rod 3 rotates, it can drive the worm 409 to rotate. After the worm 409 rotates, it can drive the worm wheel 403 to rotate. After the worm gear 403 rotates, it can drive the fixed shaft 401 and the driving gear 402 to rotate, and then the driving gear 402 can drive the transmission gear 405 to rotate, so that the rotating column 404 can rotate. After the rotating column 404 rotates, it can drive the transmission gear 406 to rotate. After the transmission gear 406 rotates, it can drive the driven gear 408 to rotate, so that the driven gear 408 can drive the output shaft 407 to rotate. The output shaft 407 of the reduction gear box is arranged vertically with the connecting rod 3. The overall structure is short and suitable for occasions with strict restrictions on installation space.

[0031] The cooling mechanism 6 includes a water tank 601, which can store liquid. One side of the water tank 601 is fixedly connected to the outside of the box body 1. A water pump 602 is fixedly connected to the side of the box body 1 close to the water tank 601. The water pump 602 can provide power for pumping liquid. The input end of the water pump 602 is fixedly connected to a liquid extraction pipe 603. The liquid extraction pipe 603 can facilitate the water pump 602 to extract the liquid from the inside of the water tank 601. The bottom of the liquid extraction pipe 603 is set at the bottom end of the inside of the water tank 601. The output end of the water pump 602 is fixedly connected to a cooling pipe 604. The cooling pipe 604 can cool the box body 1 and the structure inside the box body 1 by heat conduction to dissipate heat. The installation frame 5 is away from A heat sink 605 is fixedly connected to the inside of one side of the box body 1. The heat sink 605 can dissipate heat for the liquid in the cooling tube 604. The outside of the cooling tube 604 is wrapped around the outside of the box body 1, and a section of the cooling tube 604 is arranged inside the heat sink 605. When cooling the box body 1, the water pump 602 is first started. The input end of the water pump 602 draws out the liquid inside the water tank 601 through the liquid extraction pipe 603, and transfers the liquid to the inside of the cooling tube 604, and then the box body 1 can be cooled by heat conduction. At the same time, the liquid in the cooling tube 604 will dissipate heat through the heat sink 605, and then the heat can be dissipated for the liquid in the cooling tube 604.

[0032] The auxiliary heat dissipation mechanism 7 includes a plurality of fixed cylinders 701, which can provide an installation position. The side of the fixed cylinder 701 close to the box body 1 is fixedly connected to the side of the water tank 601 away from the box body 1. The internal rotation of the fixed cylinder 701 is connected to the impeller 702, which can rotate under the action of the water flow. The middle part of the impeller 702 is fixedly connected to a rotating rod 703, which can provide an installation position and transmit the rotational force of the impeller 702. The interior of the mounting frame 5 is fixedly connected to a plurality of mounting rings 704, which provide an installation position. The inner side of the mounting ring 704 is fixedly connected to a fixing bracket 705. The fixing frame 705 can provide an installation position. The side of the fixing frame 705 close to the fixing cylinder 701 is rotatably connected to the fan 706. The rotating rod 703 can drive the fan 706 to rotate and generate wind force, which can then dissipate heat for the heat dissipation fins 605. The side of the fan 706 close to the fixing cylinder 701 is fixedly connected to the side of the rotating rod 703 close to the fixing frame 705. The end of the rotating rod 703 away from the fan 706 is fixedly connected to a stirring blade 707. The stirring blade 707 can rotate under the drive of the rotating rod 703 and can stir the liquid inside the water tank 601, thereby accelerating the dispersion of the liquid inside the water tank 601. The bottom of one of the fixed cylinders 701 is fixedly connected with a water outlet pipe 708, and one end of the water outlet pipe 708 away from the fixed cylinder 701 is fixedly connected to the inside of the water tank 601. A plurality of stirring blades 707 are arranged inside the water tank 601. One end of the cooling pipe 604 away from the water pump 602 is fixedly connected to the top of one of the fixed cylinders 701. The plurality of fixed cylinders 701 are connected by a connecting pipe 709. When the water pump 602 is started, the liquid can be conducted into the interior of one of the fixed cylinders 701 through the cooling pipe 604, and then the liquid can be conducted to the interior of the plurality of fixed cylinders 701 through the connecting pipe 709. The flow of liquid can drive the impeller 702 to rotate, and after the impeller 702 rotates, it can drive the rotating rod 703 to rotate. After the rotating rod 703 rotates, it can drive the fan 706 to rotate, thereby generating wind force, and using the wind force to accelerate the heat dissipation of the heat dissipation fins 605, and then accelerate the heat dissipation of the liquid in the cooling tube 604. While the rotating rod 703 rotates, it can drive the stirring blade 707 to rotate, and then the stirring blade 707 can be used to stir the liquid inside the water tank 601, thereby accelerating the heat dissipation of the liquid inside the water tank 601, thereby maintaining the temperature inside the water tank 601 and improving the heat dissipation effect.

[0033] Working principle: When decelerating, the motor 2 is first started, and the output end of the motor 2 drives the connecting rod 3 to rotate. When the connecting rod 3 rotates, it can drive the worm 409 to rotate. After the worm 409 rotates, it can drive the worm wheel 403 to rotate. After the worm wheel 403 rotates, it can drive the fixed shaft 401 and the driving gear 402 to rotate. Then, the driving gear 402 can drive the transmission gear 405 to rotate, so that the rotating column 404 can rotate. After the rotating column 404 rotates, it can drive the transmission gear 406 to rotate. After the transmission gear 406 rotates, it can drive the driven gear 408 to rotate, so that the driven gear 408 can drive the output shaft 407 to rotate.

[0034] When cooling the box body 1, the water pump 602 is first started. The input end of the water pump 602 extracts the liquid inside the water tank 601 through the liquid extraction pipe 603 and transfers the liquid to the inside of the cooling pipe 604. Then, the box body 1 can be cooled by heat conduction. At the same time, the liquid in the cooling pipe 604 is dissipated through the heat dissipation fins 605, thereby dissipating heat for the liquid in the cooling pipe 604.

[0035] When the water pump 602 is started, the liquid can be conducted into the interior of one of the fixed cylinders 701 through the cooling pipe 604, and then the liquid can be conducted to the interior of multiple fixed cylinders 701 through the connecting pipe 709. The flow of liquid can drive the impeller 702 to rotate. After the impeller 702 rotates, it can drive the rotating rod 703 to rotate. After the rotating rod 703 rotates, it can drive the fan 706 to rotate, thereby generating wind force, and using the wind force to accelerate the heat dissipation of the heat dissipation fins 605, and then accelerate the heat dissipation of the liquid in the cooling pipe 604. While the rotating rod 703 rotates, it can drive the stirring blade 707 to rotate, and then the stirring blade 707 can be used to stir the liquid inside the water tank 601, thereby accelerating the heat dissipation of the liquid inside the water tank 601, thereby maintaining the temperature inside the water tank 601 and improving the heat dissipation effect.

[0036] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-torque brushless outer rotor with a worm gear structure reduction box, comprising a box body (1), characterized in that: A motor (2) is fixedly connected to one side of the outer portion of the housing (1), a connecting rod (3) is fixedly connected to the output end of the motor (2), a speed reduction mechanism (4) is provided inside the housing (1), a mounting frame (5) is fixedly connected to one side of the outer portion of the housing (1), the mounting frame (5) is used to provide a mounting position, a cooling mechanism (6) is provided inside the mounting frame (5), the cooling mechanism (6) is capable of dissipating heat for the speed reduction mechanism (4), an auxiliary heat dissipation mechanism (7) is provided inside the mounting frame (5), the auxiliary heat dissipation mechanism (7) is capable of accelerating the heat dissipation of liquid in the cooling mechanism (6).

2. The high-torque brushless outer rotor combined with a worm gear structure reduction box according to claim 1 is characterized in that: The speed reduction mechanism (4) includes a fixed rotating shaft (401), the fixed rotating shaft (401) is rotatably connected to the inner side of the housing (1), the outer upper side of the fixed rotating shaft (401) is fixedly connected to a driving gear (402), the middle part of the fixed rotating shaft (401) is fixedly connected to a worm gear (403), the middle part of the housing (1) is rotatably connected to a rotating column (404), the outer upper side of the rotating column (404) is fixedly connected to a transmission gear (405), the outer lower side of the rotating column (404) is fixedly connected to a transmission gear (406), the inner side of the housing (1) away from the motor (2) is rotatably connected to an output shaft (407), the middle part of the output shaft (407) is fixedly connected to a driven gear (408), and the outer part of the connecting rod (3) is fixedly connected to a worm gear (409).

3. The high-torque brushless outer rotor combined with a worm gear structure reduction box according to claim 1 is characterized in that: The cooling mechanism (6) comprises a water tank (601), one side of the water tank (601) is fixedly connected to the outside of the box body (1), a water pump (602) is fixedly connected to the side of the box body (1) close to the water tank (601), the input end of the water pump (602) is fixedly connected to a liquid extraction pipe (603), the bottom of the liquid extraction pipe (603) is arranged at the bottom end of the interior of the water tank (601), the output end of the water pump (602) is fixedly connected to a cooling pipe (604), and a heat dissipation fin (605) is fixedly connected to the interior of the side of the mounting frame (5) away from the box body (1).

4. The high-torque brushless outer rotor combined with a worm gear structure reduction box according to claim 3 is characterized in that: The auxiliary heat dissipation mechanism (7) comprises a plurality of fixed cylinders (701), wherein a side of the fixed cylinder (701) close to the box body (1) is fixedly connected to a side of the water tank (601) away from the box body (1), an impeller (702) is rotatably connected inside the fixed cylinder (701), a rotating rod (703) is fixedly connected to the middle of the impeller (702), a plurality of mounting rings (704) are fixedly connected inside the mounting frame (5), a fixing frame (705) is fixedly connected to the inner side of the mounting ring (704), a fan (706) is rotatably connected to a side of the fixing frame (705) close to the fixed cylinder (701), a side of the fan (706) close to the fixed cylinder (701) is fixedly connected to a side of the rotating rod (703) close to the fixed frame (705), and a stirring blade (707) is fixedly connected to the end of the rotating rod (703) away from the fan (706).

5. The high-torque brushless outer rotor combined with a worm gear structure reduction box according to claim 2, characterized in that: The bottom of the driving gear (402) is fixedly connected to the top of the worm gear (403), and the bottom of the output shaft (407) passes through the bottom of the box (1).

6. The high-torque brushless outer rotor combined with a worm gear structure reduction box according to claim 3, characterized in that: The outside of the cooling pipe (604) is wound around the outside of the box (1), and a section of the cooling pipe (604) is arranged inside the heat dissipation fin (605).

7. The high-torque brushless outer rotor combined with a worm gear structure reduction box according to claim 4, characterized in that: A water outlet pipe (708) is fixedly connected to the bottom of one of the fixed cylinders (701), and one end of the water outlet pipe (708) away from the fixed cylinder (701) is fixedly connected to the inside of the water tank (601).

8. The high-torque brushless outer rotor combined with a worm gear structure reduction box according to claim 4, characterized in that: The plurality of stirring blades (707) are all arranged inside the water tank (601), and one end of the cooling pipe (604) away from the water pump (602) is fixedly connected to the top of one of the fixed cylinders (701), and the plurality of fixed cylinders (701) are connected via a connecting pipe (709).

9. The high-torque brushless outer rotor combined with a worm gear structure reduction box according to claim 2, characterized in that: The worm (409) and the worm wheel (403) are in meshing connection, and the driving gear (402) and the transmission gear (405) are in meshing connection.

10. The high-torque brushless outer rotor combined with worm gear structure reduction box according to claim 2, characterized in that: The transmission gear (406) and the driven gear (408) are in meshing connection, and the worm (409) is arranged inside the box (1).

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