Compact double-output gear motor with early warning function for feeding machine

Abstract

The utility model discloses a compact double-output gear motor with an early warning function for a feeding machine, and relates to the technical field of gear motors. The problems that an existing speed reduction motor for the feeding machine is bloated in structure and poor in sealing performance are solved. Comprising a motor, a gear box and an output module, the output module is externally connected with a feeding bin of the feeding machine, the output module is provided with two feeding shafts rotating synchronously, and a stirring shaft is arranged above the output module. The transmission mechanism is arranged in the gear box and is used for reducing the speed and increasing the torque and driving the feeding shaft and the stirring shaft at the same time; the anti-leakage structure is arranged in the output module and used for preventing lubricating oil in the gearbox from leaking; and the leakage pre-tightening mechanism is arranged in the output module and located on the outer side of the anti-leakage mechanism, whether the lubricating oil in the gearbox leaks outwards or the production materials in the feeding bin invade, the lubricating oil enters the leakage guiding chamber firstly and is discharged from the leakage leading-out hole at the same time, and the situation that the production materials are polluted by the lubricating oil or the gearbox is damaged by the production materials is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of reduction motors, and specifically relates to a compact double-output reduction motor with a warning function for a feeder. Background Art

[0002] The working principle of a reduction motor is to greatly reduce the rotational speed of the motor through a gear reducer, and at the same time increase the output torque of the motor to meet the working needs of mechanical equipment. This power transmission device has an important core function of "increasing force and reducing speed", which is achieved by using gear transmission.

[0003] The traditional driving unit of a feeder consists of a reduction motor + a gearbox. The purpose of the reduction motor is to increase the torque of the motor and reduce the speed. Commonly used configurations include RV worm gear reduction motors, cycloidal pinwheel reduction motors, etc.; the function of the gearbox is to simultaneously convert the power input on one shaft into the power output of a low-speed and high-torque mixing shaft and the power output of two high-speed feeding shafts. The gearbox in the prior art requires 6 gears to complete these two simultaneous output functions. The overall structure of the reduction motor + gearbox is bulky, has a large volume, and has a low overall efficiency. It is necessary to maintain two independent units. The sealing structure on the traditional feeding shaft is a skeleton oil seal, which is very easy to damage after long-term use. After being damaged, the lubricating oil inside the gearbox directly flows into the feeding bin and pollutes the production materials. Therefore, a compact double-output reduction motor with a warning function for a feeder is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to make up for the deficiencies of the prior art, and provides a compact double-output reduction motor with a warning function for a feeder.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A compact double-output reduction motor with a warning function for a feeder, including a reduction motor, a gearbox, and an output module. The output module and the motor are respectively installed on the front and rear sides of the gearbox. It is characterized in that it further includes:

[0006] A transmission mechanism, which belongs to gear transmission, is arranged inside the gearbox and is used for reducing speed and increasing torque and simultaneously driving the feeding shaft and the mixing shaft;

[0007] A leakage prevention structure, which is arranged on the output module to prevent the lubricating oil in the gearbox from leaking;

[0008] A leakage pre-tightening mechanism, which is arranged on the output module and is located outside the leakage prevention mechanism;

[0009] Among them, the transmission mechanism includes a small helical gear A, which is fixed on the output shaft of the motor. Inside the gearbox, there are several groups of deep groove ball bearings A. A round shaft is connected between two adjacent groups of deep groove ball bearings A. A medium helical gear A and a medium helical gear B are respectively arranged on the outer surfaces of the two round shafts. A small helical gear B is arranged on the front of the medium helical gear A, and a small helical gear C is arranged on the front of the medium helical gear B. A deep groove ball bearing B is arranged inside the gearbox. A stirring shaft is sleeved inside the deep groove ball bearing B. A medium helical gear C is sleeved on the outer surface of the stirring shaft. A skeleton oil seal A is sleeved on the outer surface of the stirring shaft. Two feeding shafts are arranged inside the gearbox. A small helical gear D is arranged on the outer surface of the feeding shaft. Three groups of deep groove ball bearings C and flat thrust bearings are arranged on the outer surface of each feeding shaft;

[0010] Among them, the anti-leakage structure includes a skeleton oil seal B, which is sleeved on the outer surface of the feeding shaft. The outer surface of the feeding shaft is machined with a threaded groove;

[0011] Among them, the leakage pre-tightening mechanism includes a leakage guiding chamber, a skeleton oil seal B and a skeleton oil seal C. The leakage guiding chamber is arranged between the skeleton oil seal B and the skeleton oil seal C. A leakage leading hole is opened at the bottom of the leakage guiding chamber.

[0012] As a preferred solution of the present utility model, the rear side of the gearbox is connected to the motor, and the front side is connected to the output module. The motor is centrally arranged in the left-right direction on the gearbox. The interface size of the motor meets the requirements of the IEC-B standard size. The stirring shaft is arranged directly above the output module.

[0013] As a preferred solution of the present utility model, a support partition is arranged in the middle inside the gearbox, dividing the inside of the gearbox into two spaces. Five bearing holes are designed on the support partition to accommodate the deep groove ball bearings A, deep groove ball bearings B, deep groove ball bearings C, and flat thrust bearings.

[0014] As a preferred solution of the present utility model, in the transmission mechanism, the rotation centers of the small helical gear A, medium helical gear A, small helical gear B, medium helical gear B, small helical gear C and medium helical gear C are coplanar in the vertical direction, and the rotation centers of the two small helical gears D are symmetrically distributed left and right with respect to this plane.

[0015] As a preferred solution of the present utility model, the small helical gear A meshes with the medium helical gear A for transmission, the small helical gear B meshes with the medium helical gear B for transmission, the upper part of the small helical gear C meshes with the medium helical gear C for transmission, and the lower part of the small helical gear C meshes with the two small helical gears D for transmission.

[0016] As a preferred solution of the present utility model, the small helical gear A is in interference fit with the output shaft of the motor, and torque is transmitted through the flat key on the shaft. There is a setscrew for axial tightening on the small helical gear A. Considering the characteristic that the feeding screw of the twin-screw feeder rotates unidirectionally, when the motor rotates clockwise, the helix direction of the small helical gear A is right-handed; when the motor rotates counterclockwise, the helix direction of the small helical gear A is left-handed.

[0017] As a preferred solution of the present utility model, one of the round shafts passes through the supporting partition in the middle of the gearbox. The medium-sized helical gear B and the small helical gear C are arranged on both sides of the round shaft, and a deep groove ball bearing A is arranged between the two gears.

[0018] As a preferred solution of the present utility model, one end of the feeding shaft is arranged on the supporting partition of the gearbox, and the other end passes through the output module and extends to the outside; the flat thrust bearing is arranged at one end of the feeding shaft and is located on the supporting partition; two deep groove ball bearings C are distributed on both sides of the small helical gear D; another deep groove ball bearing C and a skeleton oil seal C are arranged on the right side of the leakage guiding chamber; the skeleton oil seal B is arranged on the left side of the leakage guiding chamber.

[0019] As a preferred solution of the present utility model, the feeding shaft is machined with a threaded groove, which is located inside the output module and on the left side of the skeleton oil seal B. Considering the characteristic that the feeding screw of the twin-screw feeder rotates unidirectionally, when the feeding shaft rotates clockwise, the helix direction of the threaded groove is designed to be left-handed; when the feeding shaft rotates counterclockwise, the helix direction of the threaded groove is designed to be right-handed.

[0020] As a preferred solution of the present utility model, the leakage guiding chamber is arranged between the skeleton oil seal B and the skeleton oil seal C, and the leakage outlet hole is located at the bottom of the leakage guiding chamber, which is used to install a hanging transparent collecting pipe or to arrange a sensor.

[0021] Compared with the prior art, the present utility model has the following beneficial effects:

[0022] First, in combination with the characteristic of the unidirectional rotation of the feeding shaft of the feeder, by setting a threaded groove with a corresponding helix direction on the surface of the feeding shaft, when the feeding shaft rotates, the lubricating oil flowing outwards is pumped back into the interior of the gearbox through the pressure of the screw pump, realizing the function of "never leaking oil" during the operation of the reduction motor. At the same time, a skeleton oil seal B is arranged outside the threaded groove. When the feeding shaft stops rotating, it can prevent the lubricating oil in the gearbox from leaking out. A skeleton oil seal B is also arranged on the outermost side of the output module to prevent the production materials in the feeding bin, especially the powdery materials, from leaking into the output module and damaging the gearbox.

[0023] Second, the utility model designs a leakage guiding chamber with a leakage leading hole between two skeleton oil seals. Even if the seal fails and the lubricating oil in the gearbox leaks out, or the production materials in the feeding bin invade, they will pass through the leakage guiding chamber and go out through the leakage leading hole. A transparent collecting pipe can be hung or a sensor can be installed below the leakage leading hole to play a role in leakage warning, avoiding serious situations such as lubricating oil contaminating production materials or production materials damaging the gearbox.

[0024] Third, the utility model combines the traditional reduction motor and the feeding machine gearbox in design. The overall structure can be more compact, lighter, more beautiful and more efficient. The reduction motor is placed in the middle, symmetric left and right, with a more reasonable layout, more in line with engineering aesthetics and more convenient to install. At the same time, two set screws are used to replace the structure of the traditional motor shaft end face screw gland, saving the internal space of the gearbox, making the axial length of the gearbox more compact. At the same time, compared with the traditional structure that requires six gears to complete the functions of driving the stirring shaft and the feeding shaft simultaneously, the utility model only needs four gears to achieve this function, with a simpler structure and lower cost.

[0025] Fourth, the plane thrust bearing of the utility model can bear the axial reaction force of the external feeding screw of the feeding shaft. The two deep groove ball bearings C in the middle mainly bear the reaction force of the small helical gear D on the shaft. Another deep groove ball bearing C is arranged at the front end of the feeding shaft to bear the radial force generated by the external screw of the feeding shaft, greatly improving the service life of the bearing and the skeleton oil seal, and improving the stability of the feeding shaft.

[0026] Other advantages, objectives and features of the utility model will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic three-dimensional sectional structure view of the utility model;

[0028] Figure 2 is a schematic three-dimensional structure view of the utility model;

[0029] Figure 3 is a schematic disassembly structure view of the transmission mechanism of the utility model;

[0030] Figure 4 is a schematic sectional structure view of the side of the utility model;

[0031] Figure 5 is a schematic sectional structure view of the leakage prevention structure and the leakage warning mechanism of the utility model;

[0032] Figure 6Schematic diagram of a six - gear structure for simultaneous driving of stirring and feeding in the prior art;

[0033] Figure 7 Schematic diagram of a four - gear structure for simultaneous driving of stirring and feeding in the present utility model.

[0034] In the figure: 1. Motor; 2. Gearbox; 3. Output module; 4. Small helical gear A; 5. Deep groove ball bearing A; 6. Medium - sized helical gear A; 7. Medium - sized helical gear B; 8. Small helical gear B; 9. Small helical gear C; 10. Deep groove ball bearing B; 11. Stirring shaft; 12. Medium - sized helical gear C; 13. Skeleton oil seal A; 14. Deep groove ball bearing C; 15. Feeding shaft; 16. Small helical gear D; 17. Skeleton oil seal B; 18. Flat thrust bearing; 19. Leakage guiding chamber; 20. Leakage outlet hole; 21. Threaded groove; 22. Round shaft; 23. Skeleton oil seal C; 24. Set screw. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0036] As Figure 1-7 shown, the present utility model provides a compact double - output speed - reducing motor with a warning function for a feeder, including a motor 1, a gearbox 2, and an output module 3. The motor 1 is installed at the rear side of the gearbox 2, and the output module 3 is installed at the front side of the gearbox 2. It further includes:

[0037] A transmission mechanism, which is arranged inside the gearbox 2 and is used for speed reduction and torque increase and simultaneously driving the feeding shaft 15 and the stirring shaft 11;

[0038] A leakage - proof structure, which is arranged on the output module 3 to prevent the lubricating oil in the gearbox 2 from leaking;

[0039] A leakage pre - tightening mechanism. The leakage pre - tightening mechanism includes a leakage guiding chamber 19, a skeleton oil seal B 17, and a skeleton oil seal C 23. The leakage guiding chamber 19 is arranged between the skeleton oil seal B 17 and the skeleton oil seal C 23, and a leakage outlet hole 20 is opened at the bottom of the leakage guiding chamber 19.

[0040] Among them, a support partition is designed in the middle of the housing of the gearbox 2, dividing the inner cavity of the gearbox 2 into two parts. The gears and shafts arranged in the inner cavity part close to the motor 1 only play the role of speed reduction and torque increase, replacing the traditional RV reducer and cycloid pinwheel reducer. The gears and shafts installed in the inner cavity part close to the output module 3 complete the function of simultaneously power outputting the upper stirring shaft and the lower feeding shaft while changing speed, and only four gears are used to replace the function completed by six gears of the traditional feeder gearbox.

[0041] Among them, the transmission mechanism includes a small helical gear A4, a medium helical gear A6, a medium helical gear B7 and a small helical gear B8, and the four gears complete the function of speed reduction and torque increase; the transmission mechanism also includes a small helical gear C9, two small helical gears D16 and a medium helical gear C12, and the four gears complete the function of simultaneously power outputting the upper stirring shaft and the lower feeding shaft.

[0042] Among them, the anti-leakage structure includes a threaded groove 21 on the feeding shaft 15, and a skeleton oil seal B17 and a skeleton oil seal B23 outside the threaded groove 21, and the skeleton oil seal is sleeved on the outer surface of the feeding shaft.

[0043] Among them, the leakage pre-tightening mechanism includes a leakage guiding chamber 19 in the output module 3, and a leakage leading hole 20 directly below the leakage guiding chamber 19.

[0044] By arranging a support partition in the middle of the gearbox 2, the gearbox 2 is divided into two inner cavity units. The middle support partition also provides a compact placement position for the bearings on the transmission shafts on both sides. The gears and shafts arranged in the inner cavity part close to the motor 1 only play the role of speed reduction and torque increase, replacing the traditional RV reducer and cycloid pinwheel reducer. The gears and shafts installed in the inner cavity part close to the output module 3 complete the function of simultaneously power outputting the upper stirring shaft and the lower feeding shaft while changing speed, and only four gears are used to replace the function completed by six gears of the traditional feeder gearbox. Through this design, the traditional reduction motor and the feeder gearbox are combined and designed, making the overall structure of the machine more compact, lighter and more beautiful, and the overall efficiency of the machine is also higher. Moreover, the motor 1 is centrally located, symmetrical left and right, and the feeding shafts 15 with double outputs are arranged symmetrically left and right. The centers of all other gears and transmission shafts are centrally arranged, with a more reasonable layout, more in line with engineering aesthetics, and more convenient for installation. At the same time, two set screws 24 are used to replace the structure of the traditional motor shaft end screw gland, saving the internal space of the gearbox 2 and making the axial length of the gearbox 2 more compact.

[0045] Such as Figure 3 、 4As shown, the deep groove ball bearing A5, deep groove ball bearing B10, and deep groove ball bearing C14 are in interference fit with the gearbox 2. The round shaft 22 is in interference fit with the inner wall of the deep groove ball bearing A5. The medium-sized helical gear B7 is in interference fit with the outer surface of the round shaft 22. The stirring shaft 11 is in interference fit with the inner walls of the deep groove ball bearing B10 and the medium-sized helical gear C12.

[0046] As Figure 3 , 4 shown, the small helical gear A4 meshes with the medium-sized helical gear A6 for transmission. The small helical gear B8 meshes with the medium-sized helical gear B7 for transmission. Above the small helical gear C9, it meshes with the medium-sized helical gear C12 for transmission. Below the small helical gear C9, it meshes with two groups of small helical gears D16 for transmission.

[0047] Through a simplified design, 4 gears realize the stirring and double-output feeding functions of the feeder. 7 gears of the whole machine realize the functions of speed reduction and torque increase, as well as synchronous stirring output and double-feed shaft output. The manufacturing and maintenance costs are lower, the efficiency is higher, and the failure rate is lower.

[0048] As Figure 4 , 5 shown, one end of the feeding shaft 15 is fixed on the support partition of the gearbox 2, and the other end passes through the output module 3 and extends to the outside. The flat thrust bearing 18 is arranged at one end of the feeding shaft 15 and is located on the support partition. The small helical gear D16 is on the feeding shaft 15. Two deep groove ball bearings C14 are on the feeding shaft 15, distributed on both sides of the small helical gear D16. Another deep groove ball bearing C14 and the skeleton oil seal C23 are on the feeding shaft 15, arranged outside the leakage guiding chamber 19. The skeleton oil seal B17 is on the feeding shaft, arranged inside the leakage guiding chamber 19. A threaded groove 21 is machined on the feeding shaft 15, which is located inside the output module 3 and inside the skeleton oil seal B17. Combining with the characteristic of the one-way rotation of the feeding screw of the twin-screw feeder, when the feeding shaft 15 rotates clockwise, the thread direction of the threaded groove 21 is designed to be left-handed; when the feeding shaft 15 rotates counterclockwise, the thread direction of the threaded groove 21 is designed to be right-handed.

[0049] Through the skeleton oil seal A13 and the skeleton oil seal B17 located outside the gearbox 2, it is possible to prevent materials such as powders being transported from entering the inside of the gearbox 2 and avoid damage to the gears caused by the materials entering the inside of the gearbox 2.

[0050] As Figure 4 , 5 shown, a flat thrust bearing 18 is sleeved on the tail end of the feeding shaft 15. The flat thrust bearing 18 is in interference fit with the feeding shaft 15 and the gearbox 2. The threaded groove 21 is located at the position between the skeleton oil seal B17 and the deep groove ball bearing C14 on the left side of the leakage guiding chamber 19.

[0051] As Figure 4 , 5As shown in the figure, the leakage guiding chamber 19 is arranged between the skeleton oil seal B17 and the skeleton oil seal C23. The leakage leading hole 20 is located at the bottom of the leakage guiding chamber 19 and is used to install a hanging transparent collecting pipe or place a sensor, which plays a role in leakage warning and timely feedback of maintenance information. When the seal fails, the lubricating oil in the gearbox leaks out, or the production materials in the feeding bin invade, both will pass through the leakage guiding chamber 19 and go out through the leakage leading hole 20, avoiding the serious situation of lubricating oil contaminating production materials or production materials damaging the gearbox.

[0052] As Figure 5 shown in the figure, the flat thrust bearing 18 is fixed on the intermediate support partition of the gearbox 2 at one end of the feeding shaft, and bears the axial reaction force of the external screw of the feeding shaft 15; the two deep groove ball bearings C14 in the middle mainly bear the reaction force of the small helical gear D16 on the shaft; another deep groove ball bearing C14 is arranged at the front end of the feeding shaft 15 to bear the radial force generated by the external screw of the feeding shaft 15. The reasonable bearing layout greatly improves the service life of the bearings and the skeleton oil seals, and improves the transmission stability of the feeding shaft 15.

[0053] Through the standardized design of the input interface of the gearbox 2, the interface size of the equipped motor 1 can be directly installed as long as it meets the size requirements of IEC - B5. Standard motors can be directly purchased on the market without customizing the interface, which has the advantages of strong versatility and low maintenance cost.

[0054] Working principle:

[0055] Through the thread groove 21 arranged on the outer surface of the feeding shaft 15, when the feeding shaft 15 rotates, the pressure of the screw pump will send the lubricating oil flowing towards the outside of the gearbox 2 into the gearbox 2, which can effectively prevent the lubricating oil from leaking to the outside of the gearbox 2 and realize the function of "never leaking oil" during the operation of the reduction motor. At the same time, through the skeleton oil seal B17 inside the leakage guiding chamber 19, when the feeding shaft 15 stops rotating, it can play a static sealing role between the feeding shaft 15 and the output module 3, preventing the lubricating oil from leaking during shutdown. If the sealing performance of the skeleton oil seal B17 decreases and the lubricating oil leaks along the feeding shaft 15, the lubricating oil will enter the inside of the leakage guiding chamber 19 and will be discharged from the leakage leading hole 20 at this time, avoiding polluting the materials inside the feeding bin. And by installing a hanging transparent collecting pipe or a sensor at the bottom of the leakage leading hole 20, it can play a prompting and alarm role after leakage and timely feedback the maintenance information. If there is a problem with the seal of the skeleton oil seal C23 and the production materials in the feeding bin invade the output module 3, they will also be guided to the position of the hanging transparent collecting pipe or sensor at the bottom of the leakage leading hole 20, which can play a prompting and alarm role after leakage and timely feedback the maintenance information.

[0056] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A compact dual-output reduction motor with an early warning function for a feeder, comprising a reduction motor (1), a gear box (2) and an output module (3), wherein the output module (3) and the motor (1) are respectively mounted on the front and rear sides of the gear box (2), characterized in that: Also includes: The transmission mechanism is a gear transmission, which is arranged inside the gear box (2) and is used to reduce speed and increase torque and simultaneously drive the feed shaft and the stirring shaft; An anti-leakage structure, which is arranged on the output module (3) to prevent the lubricating oil in the gear box from leaking; A leakage pre-tightening mechanism, which is arranged on the output module (3) and is located outside the anti-leakage mechanism; The transmission mechanism comprises a small helical gear A (4), the small helical gear A (4) being fixed on the output shaft of the motor (1), a plurality of groups of deep groove ball bearings A (5) being arranged inside the gear box (2), a round shaft (22) being connected between two adjacent groups of deep groove ball bearings A (5), a medium helical gear A (6) and a medium helical gear B (7) being arranged on the outer surfaces of the two groups of round shafts (22), a small helical gear B (8) being arranged on the front of the medium helical gear A (6), a small helical gear C (9) being arranged on the front of the medium helical gear B (7), and the gear A deep groove ball bearing B (10) is arranged inside the box (2), a stirring shaft (11) is sleeved inside the deep groove ball bearing B (10), a medium-sized helical gear C (12) is sleeved on the outer surface of the stirring shaft (11), a skeleton oil seal A (13) is sleeved on the outer surface of the stirring shaft (11), two groups of feeding shafts (15) are arranged inside the gear box (2), a small helical gear D (16) is arranged on the outer surface of the feeding shaft (15), and three groups of deep groove ball bearings C (14) and a plane thrust bearing (18) are arranged on the outer surface of each group of feeding shafts (15); The anti-leakage structure comprises a skeleton oil seal B (17), wherein the skeleton oil seal B (17) is sleeved on the outer surface of the feeding shaft (15), and the outer surface of the feeding shaft (15) is processed with a thread groove (21); The leakage pre-tightening mechanism comprises a leakage guide chamber (19), a skeleton oil seal B (17) and a skeleton oil seal C (23); the leakage guide chamber (19) is arranged between the skeleton oil seal B (17) and the skeleton oil seal C (23); and a leakage outlet hole (20) is provided at the bottom of the leakage guide chamber (19).

2. The compact dual-output reduction motor with early warning function for a feeder according to claim 1 is characterized in that: The rear side of the gear box (2) is connected to the motor (1), and the front side is connected to the output module (3). The motor (1) is arranged on the gear box (2) in the center in the left-right direction. The interface size of the motor (1) meets the IEC-B5 standard size requirements. The stirring shaft (11) is arranged directly above the output module (3).

3. The compact dual-output reduction motor with early warning function for a feeder according to claim 1 is characterized in that: A supporting partition is arranged in the middle of the gear box (2) to divide the interior of the gear box (2) into two spaces. Five bearing holes are designed on the supporting partition to accommodate a deep groove ball bearing A (5), a deep groove ball bearing B (10), a deep groove ball bearing C (14), and a plane thrust bearing (18).

4. The compact dual-output reduction motor with early warning function for a feeder according to claim 1 is characterized in that: In the transmission mechanism, the rotation centers of the small helical gear A (4), the medium helical gear A (6), the small helical gear B (8), the medium helical gear B (7), the small helical gear C (9) and the medium helical gear C (12) are coplanar in the vertical direction, and the rotation centers of the two small helical gears D (16) are symmetrically distributed on this plane.

5. The compact dual-output reduction motor with early warning function for a feeder according to claim 1 is characterized in that: The small helical gear A (4) meshes with the medium helical gear A (6) for transmission, the small helical gear B (8) meshes with the medium helical gear B (7) for transmission, the upper part of the small helical gear C (9) meshes with the medium helical gear C (12) for transmission, and the lower part of the small helical gear C (9) meshes with two groups of small helical gears D (16) for transmission.

6. The compact dual-output reduction motor with early warning function for a feeder according to claim 1 is characterized in that: The small helical gear A (4) is interference fit with the output shaft of the motor (1), and the torque is transmitted through the flat key on the shaft. The small helical gear A (4) is designed with a top screw (24) for axial tightening. In view of the unidirectional rotation of the feeding screw of the twin-screw feeder, when the motor rotates clockwise, the helical direction of the small helical gear A (4) is right-handed; when the motor rotates counterclockwise, the helical direction of the small helical gear A (4) is left-handed.

7. The compact dual-output reduction motor with early warning function for a feeder according to claim 1 is characterized in that: One of the circular shafts (22) passes through the supporting partition in the middle of the gear box (2), the medium-sized helical gear B (7) and the small-sized helical gear C (9) are arranged on both sides of the circular shaft (22), and a deep groove ball bearing A (5) is arranged between the two gears.

8. The compact dual-output reduction motor with early warning function for a feeder according to claim 1 is characterized in that: One end of the feed shaft (15) is arranged on a supporting partition of the gear box (2), and the other end passes through the output module (3) and extends to the outside; the plane thrust bearing (18) is arranged on one end of the feed shaft (15) and is located on the supporting partition; two deep groove ball bearings C (14) are distributed on both sides of the small helical gear D (16); another deep groove ball bearing C (14) and a skeleton oil seal C (23) are arranged on the right side of the leakage guide chamber (19); and the skeleton oil seal B (17) is arranged on the left side of the leakage guide chamber (19).

9. The compact dual-output reduction motor with early warning function for a feeder according to claim 1, characterized in that: The feed shaft (15) is machined with a thread groove (21), which is located inside the output module (3) and on the left side of the skeleton oil seal B (17). In view of the unidirectional rotation characteristic of the feed screw of the twin-screw feeder, when the feed shaft (15) rotates clockwise, the thread groove (21) is designed to be left-handed; when the feed shaft (15) rotates counterclockwise, the thread groove (21) is designed to be right-handed.

10. The compact dual-output reduction motor with early warning function for a feeder according to claim 1, characterized in that: The leakage guide chamber (19) is arranged between the skeleton oil seal B (17) and the skeleton oil seal C (23), and the leakage outlet hole (20) is located at the bottom of the leakage guide chamber (19) and is used for installing a hanging transparent collecting pipe or placing a sensor.

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