Belt transmission driving motor with gear switching function

Abstract

The invention provides a belt transmission driving motor with a gear switching function, and relates to the field of driving motors. A driving motor body is installed on the right side of the upper end face of the base, and a first driving belt wheel and a second driving belt wheel are fixedly installed on a rotating shaft of the driving motor body. A transmission box is installed on the left side of the upper end face of the base, a rectangular through opening is formed in the upper end face of the transmission box, and a gear switching rod piece is slidably connected into the rectangular through opening. Through the gear switching effect of the gear switching rod piece and the cylindrical driving piece, the rotating speed of the output shaft can be adjusted according to needs, and the output torque can also be adjusted, so that the gears can be switched according to loads, and the practicability of the driving motor is improved; the problems that although an existing driving motor speed regulation method is convenient and reliable, the output torque is difficult to regulate, so that gears are difficult to switch according to loads, and the practicability of the driving motor is reduced are solved.

Description

Technical Field

[0001] The invention relates to the technical field of drive motors, and in particular to a belt-driven drive motor with a gear switching function. Background Art

[0002] A motor refers to an electromagnetic drive device that realizes the conversion or transmission of electrical energy according to the law of electromagnetic induction. According to the type of working power supply, it can be divided into DC motors and AC motors. At present, there are many methods for adjusting the speed of drive motors, which can be divided into: variable frequency speed regulation, resistance speed regulation, voltage speed regulation, transformer speed regulation, etc. Although the above-mentioned motor speed regulation methods are convenient and reliable, it is difficult to adjust the output torque, and thus it is difficult to switch gears according to the load, which reduces the practicality of the drive motor. In addition, although some drive motors can change the motor speed by changing the gear ratio, etc., the gears in such drive motors are difficult to be effectively lubricated after a period of use, which will reduce the service life of the gear speed regulation motor. Summary of the invention

[0003] The disclosed embodiment relates to a belt-driven drive motor with a gear switching function. Through the gear switching action of the gear switching rod and the cylindrical driving member, not only the rotational speed of the output shaft can be adjusted as needed, but the output torque can also be adjusted, so that the gear can be switched according to the load, thereby improving the practicality of the drive motor; through the setting of the oil delivery mechanism, the first input gear, the second input gear, the first transmission gear, the second transmission gear, the third transmission gear, the first output gear and the second output gear can be lubricated, thereby improving the service life of the drive motor.

[0004] In a first aspect of the present disclosure, a belt-driven drive motor with a gear switching function is provided, specifically comprising: a base; a drive motor body is installed on the right side of the upper end surface of the base, and a first drive pulley and a second drive pulley are fixedly installed on the rotating shaft of the drive motor body; a transmission box is installed on the left side of the upper end surface of the base, and a rectangular through opening is opened on the upper end surface of the transmission box, and a gear switching rod is slidably connected inside the rectangular through opening, a driving ring is provided at the lower end of the gear switching rod, and a bearing is installed inside the driving ring, and the inner ring of the bearing inside the driving ring is connected to a cylindrical driving member; an oil delivery mechanism is provided on the upper end surface of the base located at the rear side of the transmission box.

[0005] In at least some embodiments, the transmission box has a first rotating shaft, a second rotating shaft and an output shaft that are rotatably connected from right to left in sequence, and an output pulley is installed at the front end of the output shaft; a first transmission pulley is installed at the front end of the first rotating shaft, and the first transmission pulley is connected to the first drive pulley through a belt.

[0006] In at least some embodiments, two bearings are installed on the outside of the first rotating shaft, and the outer rings of the two bearings on the first rotating shaft are respectively installed with the first input gear and the second input gear, and the middle part of the outer circumferential surface of the first rotating shaft is provided with four strip-shaped slide grooves in a circular array; a bearing is installed on the outside of the second rotating shaft, and the outer ring of the bearing on the second rotating shaft is provided with a third transmission gear, the first transmission gear is fixedly installed on the rear side of the outside of the second rotating shaft, and the second transmission gear is fixedly installed on the middle side of the outside of the second rotating shaft; the first output gear and the second output gear are fixedly installed on the outside of the output shaft; the opposing surfaces of the first input gear and the second input gear are both provided with connecting holes in a circular array, and the opposing surfaces of the first input gear and the second input gear are provided with fillets at each connecting hole.

[0007] In at least some embodiments, the first input gear and the first output gear are both meshed with the third transmission gear, and the diameter of the first input gear is equal to the diameter of the third transmission gear, and the diameter of the third transmission gear is three to four times the diameter of the first output gear; the second input gear is meshed with the first transmission gear, and the diameter of the second input gear is equal to the diameter of the first transmission gear; the second transmission gear is meshed with the second output gear, and the diameter of the second transmission gear is equal to the diameter of the second output gear.

[0008] In at least some embodiments, an inclined plate is provided on the lower side of the interior of the transmission box, and the rear side of the inclined plate is distributed in a downwardly inclined shape; an oil outlet is provided on the lower part of the rear end surface of the transmission box; a plug-in block is installed on both sides of the left and right sides of the rectangular opening on the top surface of the transmission box, and two plug-in holes are provided on the upper end surface of each plug-in block.

[0009] In at least some embodiments, a sliding sleeve is provided on both sides of the gear switching lever, and each sliding sleeve is slidably connected to a guide rod fixed inside the transmission box; a dustproof plate is fixedly connected to the outside of the gear switching lever, and the bottom end surface of the dustproof plate is in contact with the top end surface of the transmission box.

[0010] In at least some embodiments, a rectangular sliding shell is installed on the upper part of the left and right end surfaces of the gear switching lever, and a rectangular sliding block is slidably connected to the inside of each rectangular sliding shell, and a pulling rod is provided on the upper end of each rectangular sliding block, which passes through the upper part of the rectangular sliding shell, and a spring is sleeved on the outside of each pulling rod located inside the rectangular sliding shell, and a plug-in rod is provided on the lower end of each rectangular sliding block, which passes through the lower part of the rectangular sliding shell; the upper ends of the two pulling rods are fixedly connected to lifting rods, and an auxiliary grip rod is provided between the upper parts of the two rectangular sliding shells.

[0011] In at least some embodiments, an annular groove is provided on the middle side of the outer circumference of the cylindrical driving member, and the annular groove is connected to the inner ring of the bearing installed inside the driving ring; and plug-in columns are provided in a circular array at the edges of the front and rear end surfaces of the cylindrical driving member.

[0012] In at least some embodiments, a circular sliding hole is provided at the center of the front end surface of the columnar driving member, and four strip-shaped sliding blocks are provided in a ring array inside the circular sliding hole, and the four strip-shaped sliding blocks are used for sliding connection with four strip-shaped sliding grooves.

[0013] In at least some embodiments, the oil delivery mechanism includes an oil delivery pump body, a transmission shaft, an oil delivery pipe, an oil injection pipe fitting and a second transmission pulley. The oil delivery pump body is installed on the upper end surface of the base, and the oil suction port of the oil delivery pump body is connected with the oil outlet pipe through an oil pipe; the input shaft of the oil delivery pump body is fixedly connected with the transmission shaft, and the transmission shaft is rotatably connected to the upper end surface of the base; a second transmission pulley is installed at the front end of the transmission shaft, and the second transmission pulley is transmission-connected to the second driving pulley through a belt; the oil outlet of the oil delivery pump body is connected with the oil delivery pipe, and the other end of the oil delivery pipe is connected with the oil injection pipe fitting, the oil injection pipe fitting is installed on the upper side inside the transmission box, and an oil injection head is provided at the bottom of the oil injection pipe fitting.

[0014] The present invention provides a belt transmission drive motor with a gear switching function, which has the following beneficial effects: 1. Through the gear switching function of the gear switching rod and the cylindrical driving member, when adjusting the speed of the output shaft, the gear switching rod can move the cylindrical driving member forward and backward to achieve gear switching. Not only can the speed of the output shaft be adjusted as needed, but the output torque can also be adjusted, so that the gear can be switched according to the load, thereby improving the practicality of the drive motor.

[0015] 2. Through the setting of the oil delivery mechanism, during the rotation of the main shaft of the driving motor, the input shaft of the oil delivery pump body can be rotated, so that the oil suction port of the oil delivery pump body generates suction, thereby transporting the lubricating oil inside the transmission box to the inside of the oil injection pipe through the oil delivery pipe, and then the lubricating oil is sprayed onto the first input gear, the second input gear, the first transmission gear, the second transmission gear, the third transmission gear, the first output gear and the second output gear through the oil spray head at the bottom of the oil injection pipe for lubrication, thereby improving the service life of the driving motor.

[0016] 3. Through the cooperation of the two plug-in rods and the two plug-in blocks, after the gear is switched, the lifting rod can be loosened to allow the two plug-in rods to be inserted into the plug-in holes opened on the front sides of the upper ends of the two plug-in blocks, so that the gear switching rod can obtain an effective limiting effect after switching the gear with the columnar driving member, thereby improving the reliability of the drive motor when running after the speed change. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0018] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached picture: Figure 1 A structural diagram showing the overall structure of the present application; Figure 2 A schematic diagram showing the structure of the present application from a rear perspective is shown; Figure 3 A schematic diagram of the structure of the present application in a split state is shown; Figure 4 A schematic diagram of a partial cross-section of the transmission case of the present application is shown; Figure 5 A schematic diagram of the structure of the transmission box and the plug-in block of the present application is shown; Figure 6 A schematic diagram of the structure after the first rotating shaft, the gear shifting lever and the cylindrical driving member of the present application are disassembled is shown; Figure 7 A schematic structural diagram of a columnar driving member of the present application is shown; Figure 8 A schematic structural diagram of the gear shift lever of the present application is shown; Fig. 9 The schematic diagram of the structure of the oil delivery mechanism of the present application is shown.

[0020] Reference numerals list 1. Base; 2. driving motor body; 201. first driving pulley; 202. second driving pulley; 3. Transmission box; 301. First rotating shaft; 302. Second rotating shaft; 303. Output shaft; 304. First transmission pulley; 305. Inclined plate; 306. Plug-in block; 307. Oil outlet; 308. Rectangular opening; 309. First input gear; 3010. Second input gear; 3011. Connecting jack; 3012. First transmission gear; 3013. Second transmission gear; 3014. Third transmission gear; 3015. First output gear; 3016. Second output gear; 3017. Strip slide; 4. gear shift lever; 401. dust plate; 402. rectangular sliding shell; 403. rectangular sliding block; 404. pulling rod; 405. lifting rod; 406. auxiliary grip rod; 407. plug-in rod; 408. sliding sleeve; 409. guide rod; 4010. driving ring; 5. Oil delivery mechanism; 501. Oil delivery pump body; 502. Transmission shaft; 503. Oil delivery pipe; 504. Oil injection pipe fitting; 505. Second transmission pulley; 6. Columnar driving member; 601. Annular groove; 602. Plug-in column; 603. Circular sliding hole; 604. Strip sliding block. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figures 1 to 9 : The present invention proposes a belt-driven driving motor with a gear switching function, comprising: a base 1; a driving motor body 2 is installed on the right side of the upper end surface of the base 1, and a first driving pulley 201 and a second driving pulley 202 are fixedly installed on the rotating shaft of the driving motor body 2; a transmission box 3 is installed on the left side of the upper end surface of the base 1, and a rectangular through hole 308 is opened on the upper end surface of the transmission box 3, and a gear switching rod 4 is slidably connected inside the rectangular through hole 308, a driving ring 4010 is provided at the lower end of the gear switching rod 4, and a bearing is installed inside the driving ring 4010, and the inner ring of the bearing inside the driving ring 4010 is connected to a cylindrical driving member 6; an oil delivery mechanism 5 is provided on the upper end surface of the base 1 located at the rear side of the transmission box 3 for delivering lubricating oil.

[0023] The transmission box 3 has a first rotating shaft 301, a second rotating shaft 302 and an output shaft 303 that are rotatably connected from right to left in sequence, and an output pulley is installed at the front end of the output shaft 303; a first transmission pulley 304 is installed at the front end of the first rotating shaft 301, and the first transmission pulley 304 is connected to the first driving pulley 201 through a belt; two bearings are installed on the outside of the first rotating shaft 301, and the outer rings of the two bearings on the first rotating shaft 301 are respectively installed with the first input gear 309 and the second input gear 3010, and the middle part of the outer peripheral surface of the first rotating shaft 301 is provided with four strip-shaped slide grooves 3017 in a circular array; a bearing is installed on the outside of the second rotating shaft 302, and the outer ring of the bearing on the second rotating shaft 302 A third transmission gear 3014 is installed, a first transmission gear 3012 is fixedly installed on the outer rear side of the second rotating shaft 302, and a second transmission gear 3013 is fixedly installed on the outer middle side of the second rotating shaft 302; a first output gear 3015 and a second output gear 3016 are fixedly installed on the outer side of the output shaft 303; the opposing surfaces of the first input gear 309 and the second input gear 3010 are provided with connecting holes 3011 in a circular array, and the opposing surfaces of the first input gear 309 and the second input gear 3010 are provided with rounded corners at each connecting hole 3011; a refueling port is provided on the left side of the top of the transmission box 3, and a sealing cover is threadedly connected to the upper end of the refueling port for filling lubricating oil into the transmission box 3.

[0024] The first input gear 309 and the first output gear 3015 are both meshed with the third transmission gear 3014, and the diameter of the first input gear 309 is equal to the diameter of the third transmission gear 3014, and the diameter of the third transmission gear 3014 is three to four times the diameter of the first output gear 3015; the second input gear 3010 is meshed with the first transmission gear 3012, and the diameter of the second input gear 3010 is equal to the diameter of the first transmission gear 3012; the second transmission gear 3013 is meshed with the second output gear 3016, and the diameter of the second transmission gear 3013 is equal to the diameter of the second output gear 3016, and the output speed is changed by gears with different transmission ratios.

[0025] An inclined plate 305 is provided on the lower side of the interior of the transmission box 3, and the rear side of the inclined plate 305 is distributed in a downwardly inclined shape; an oil outlet pipe port 307 is provided on the lower part of the rear end face of the transmission box 3; a plug-in block 306 is installed on both sides of the left and right sides of the rectangular opening 308 on the top surface of the transmission box 3, and two plug-in holes are provided on the upper end face of each plug-in block 306 for plugging with the plug-in rod 407.

[0026] A sliding sleeve 408 is provided on both sides of the gear switching rod 4, and each sliding sleeve 408 is slidably connected to a guide rod 409 fixed inside the transmission box 3; a dustproof plate 401 is fixedly connected to the outside of the gear switching rod 4, and the bottom end surface of the dustproof plate 401 contacts the top end surface of the transmission box 3, so that the rectangular opening 308 can be effectively dustproof.

[0027] A rectangular sliding shell 402 is installed on the upper part of the left and right end surfaces of the gear switching lever 4, and a rectangular sliding block 403 is slidably connected inside each rectangular sliding shell 402, and a pulling rod 404 is provided on the upper end of each rectangular sliding block 403, which passes through the upper part of the rectangular sliding shell 402, and a spring is sleeved on the outside of each pulling rod 404 located inside the rectangular sliding shell 402, and a plug-in rod 407 is provided on the lower end of each rectangular sliding block 403, which passes through the lower part of the rectangular sliding shell 402; a lifting rod 405 is fixedly connected to the upper ends of the two pulling rods 404, and an auxiliary gripping rod 406 is provided between the upper parts of the two rectangular sliding shells 402; through the setting of the gear switching lever 4, it is used to move the columnar driving member 6 back and forth to realize the gear switching.

[0028] An annular groove 601 is provided on the middle side of the outer circumferential surface of the cylindrical driving member 6, and the annular groove 601 is connected to the inner ring of the bearing installed inside the driving ring 4010; plug-in columns 602 are provided in a circular array at the edges of the front and rear end surfaces of the cylindrical driving member 6; a circular sliding hole 603 is provided in the center of the front end surface of the cylindrical driving member 6, and four strip sliding blocks 604 are provided in a circular array inside the circular sliding hole 603, and the four strip sliding blocks 604 are used for sliding connection with the four strip sliding grooves 3017; the setting of the cylindrical driving member 6 is used for switching gears.

[0029] Embodiment 2, based on embodiment 1, as Figure 2 and Fig. 9As shown, the oil delivery mechanism 5 includes an oil delivery pump body 501, a transmission shaft 502, an oil delivery pipe 503, an oil injection pipe 504 and a second transmission pulley 505. The oil delivery pump body 501 is installed on the upper end surface of the base 1, and the oil suction port of the oil delivery pump body 501 is connected to the oil outlet pipe 307 through an oil pipe; the input shaft of the oil delivery pump body 501 is fixedly connected to the transmission shaft 502, and the transmission shaft 502 is rotatably connected to the upper end surface of the base 1; a second transmission pulley 505 is installed at the front end of the transmission shaft 502, and the second transmission pulley 505 is transmission-connected to the second driving pulley 202 through a belt; the oil outlet of the oil delivery pump body 501 is connected to the oil delivery pipe 503, and the other end of the oil delivery pipe 503 is connected to the oil injection pipe 504, and the oil injection pipe 504 is installed on the upper side of the transmission box 3, and an oil spray head is provided at the bottom of the oil spray pipe 504. The oil spray pipe 504 is located above the first input gear 309, the second input gear 3010, the first transmission gear 3012, the second transmission gear 3013, the third transmission gear 3014, the first output gear 3015 and the second output gear 3016; through the setting of the oil delivery mechanism 5, the first input gear 309, the second input gear 3010, the first transmission gear 3012, the second transmission gear 3013, the third transmission gear 3014, the first output gear 3015 and the second output gear 3016 can be effectively lubricated, thereby improving the service life of the drive motor.

[0030] The working principle of this embodiment is as follows: when in use, first, lubricating oil is added to the transmission case 3 through the refueling port on the left side of the top of the transmission case 3. The lubricating oil is gathered at the rear side of the transmission case 3 under the action of the inclined plate 305; then, when the speed of the output shaft 303 needs to be increased, the lifting rod 405 and the auxiliary gripping rod 406 are manually gripped to move the lifting rod 405 upward, thereby moving the two pulling rods 404, the two rectangular sliders 403 and the two plug-in rods 407 upward, so that the two plug-in rods 407 are pulled out from the plug-in holes opened on the rear side of the upper end faces of the two plug-in blocks 306, and then the auxiliary gripping rod 406 is moved forward, moving the gear switching rod 4, the driving ring 4010 and the columnar driving member 6 forward. When the gear switching rod 4 moves forward to the extreme position, the plug-in column 602 on the front side of the columnar driving member 6 is inserted into the connecting socket 3011 opened on the first input gear 309, and then The lifting rod 405 is released, so that the two rectangular sliders 403 move downward with the two plug-in rods 407 under the action of the external spring force of the pulling rod 404, so that the two plug-in rods 407 are inserted into the plug-in holes opened on the front side of the upper end faces of the two plug-in blocks 306, and then the driving motor body 2 is started, so that the rotating shaft of the driving motor body 2 rotates with the first driving pulley 201, the first transmission pulley 304, the first rotating shaft 301 and the cylindrical driving member 6. At this time, the plug-in column 602 on the front side of the cylindrical driving member 6 is inserted into the connecting socket 3011 opened on the first input gear 309, thereby rotating with the first input gear 309, and then rotating with the third transmission gear 3014, the first output gear 3015 and the output shaft 303. Since the diameter of the third transmission gear 3014 is three to four times the diameter of the first output gear 3015, the rotation speed of the output shaft 303 is increased.

[0031] When the speed of the output shaft 303 needs to be slowed down, the lifting rod 405 and the auxiliary gripping rod 406 can be manually gripped to pull the two plug-in rods 407 out of the plug-in holes opened on the rear side of the upper end faces of the two plug-in blocks 306, and then the auxiliary gripping rod 406 is moved backward to move the gear shifting rod 4, the driving ring 4010 and the columnar driving member 6 forward. When the gear shifting rod 4 moves forward to the limit position, the plug-in column 602 on the rear side of the columnar driving member 6 is inserted into the connecting socket 3011 opened on the second input gear 3010, and then the lifting rod 405 is loosened to insert the two plug-in rods 407 into the plug-in holes opened on the front side of the upper end faces of the two plug-in blocks 306. After the driving motor body 2 is started, the rotating shaft of the driving motor body 2 rotates with the first driving pulley 201, the first transmission pulley 304, the first rotating shaft 301 and the cylindrical driving member 6. At this time, the plug-in column 602 on the rear side of the cylindrical driving member 6 is inserted into the connecting socket 3011 provided on the second input gear 3010, thereby rotating the second input gear 3010, and then rotating the first transmission gear 3012, the second rotating shaft 302, the second transmission gear 3013, the second output gear 3016 and the output shaft 303. Since the diameter size of the second transmission gear 3013 is equal to the diameter size of the second output gear 3016, the rotation speed of the output shaft 303 is slowed down.

[0032] During the rotation of the shaft of the driving motor body 2, the second driving pulley 202, the second transmission pulley 505, the transmission shaft 502 and the input shaft of the oil pump body 501 will rotate, so that the oil suction port of the oil pump body 501 will generate suction, so that the lubricating oil inside the transmission box 3 is transported to the inside of the oil injection pipe 504 through the oil pipe 503, and then the lubricating oil is sprayed onto the first input gear 309, the second input gear 3010, the first transmission gear 3012, the second transmission gear 3013, the third transmission gear 3014, the first output gear 3015 and the second output gear 3016 through the oil spray head at the bottom of the oil injection pipe 504, so that the first input gear 309, the second input gear 3010, the first transmission gear 3012, the second transmission gear 3013, the third transmission gear 3014, the first output gear 3015 and the second output gear 3016 can be circulated and effectively lubricated.

[0033] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0034] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0035] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A belt-driven drive motor with a gear switching function, comprising: A base (1); a driving motor body (2) is mounted on the right side of the upper end surface of the base (1), and a first driving pulley (201) and a second driving pulley (202) are fixedly mounted on the rotating shaft of the driving motor body (2); the characteristic is that a transmission box (3) is mounted on the left side of the upper end surface of the base (1), and a rectangular opening (308) is formed on the upper end surface of the transmission box (3), and a gear switching lever (4) is slidably connected inside the rectangular opening (308), a driving ring (4010) is provided at the lower end of the gear switching lever (4), and a bearing is mounted inside the driving ring (4010), and a cylindrical driving member (6) is connected to the inner ring of the bearing inside the driving ring (4010); an oil delivery mechanism (5) is provided on the upper end surface of the base (1) at the rear side of the transmission box (3).

2. The belt transmission drive motor with gear switching function according to claim 1, characterized in that: The transmission box (3) is internally provided with a first rotating shaft (301), a second rotating shaft (302) and an output shaft (303) which are rotatably connected from right to left in sequence, and an output pulley is installed at the front end of the output shaft (303); a first transmission pulley (304) is installed at the front end of the first rotating shaft (301), and the first transmission pulley (304) is transmission-connected to the first driving pulley (201) via a belt.

3. The belt-driven drive motor with gear switching function according to claim 2, characterized in that: Two bearings are installed on the outside of the first rotating shaft (301), and the outer rings of the two bearings on the first rotating shaft (301) are respectively installed with a first input gear (309) and a second input gear (3010), and four strip-shaped slide grooves (3017) are provided in a circular array in the middle of the outer peripheral surface of the first rotating shaft (301); a bearing is installed on the outside of the second rotating shaft (302), and the outer ring of the bearing on the second rotating shaft (302) is installed with a third transmission gear (3014), and the first transmission gear is fixedly installed on the rear side of the outside of the second rotating shaft (302). A second transmission gear (3013) is fixedly mounted on the middle side of the second rotating shaft (302); a first output gear (3015) and a second output gear (3016) are fixedly mounted on the outside of the output shaft (303); the opposing surfaces of the first input gear (309) and the second input gear (3010) are provided with connecting holes (3011) in a circular array, and the opposing surfaces of the first input gear (309) and the second input gear (3010) are provided with fillets at each connecting hole (3011).

4. The belt transmission drive motor with gear switching function according to claim 3, characterized in that: The first input gear (309) and the first output gear (3015) are both meshed with the third transmission gear (3014), and the diameter of the first input gear (309) is equal to the diameter of the third transmission gear (3014), and the diameter of the third transmission gear (3014) is three to four times the diameter of the first output gear (3015); the second input gear (3010) is meshed with the first transmission gear (3012), and the diameter of the second input gear (3010) is equal to the diameter of the first transmission gear (3012); the second transmission gear (3013) is meshed with the second output gear (3016), and the diameter of the second transmission gear (3013) is equal to the diameter of the second output gear (3016).

5. The belt-driven drive motor with gear switching function according to claim 1, characterized in that: An inclined plate (305) is provided at the lower side of the transmission box (3), and the rear side of the inclined plate (305) is distributed in a downwardly inclined shape; an oil outlet (307) is provided at the lower part of the rear end surface of the transmission box (3); a plug-in block (306) is installed on both sides of the left and right sides of the rectangular opening (308) at the top end surface of the transmission box (3), and two plug-in holes are provided on the upper end surface of each plug-in block (306).

6. The belt-driven drive motor with gear switching function according to claim 1, characterized in that: A sliding sleeve (408) is provided on both sides of the gear switching lever (4), and each sliding sleeve (408) is slidably connected to a guide rod (409) fixed inside the transmission box (3); a dustproof plate (401) is fixedly connected to the outside of the gear switching lever (4), and the bottom end surface of the dustproof plate (401) contacts the top end surface of the transmission box (3).

7. The belt-driven drive motor with gear switching function according to claim 1, characterized in that: A rectangular sliding shell (402) is installed on the upper part of the left and right end surfaces of the gear shift lever (4), and each rectangular sliding shell (402) is slidably connected to a rectangular slider (403) inside, and each rectangular slider (403) is provided with a pulling rod (404) penetrating the upper part of the rectangular sliding shell (402) at the upper end, and each pulling rod (404) is provided with a spring sleeved outside the rectangular sliding shell (402), and each rectangular slider (403) is provided with a plug-in rod (407) penetrating the lower part of the rectangular sliding shell (402) at the lower end; the upper ends of the two pulling rods (404) are fixedly connected to a lifting rod (405), and an auxiliary grip rod (406) is provided between the upper parts of the two rectangular sliding shells (402).

8. The belt-driven drive motor with gear switching function according to claim 1, characterized in that: An annular groove (601) is provided in the middle of the outer peripheral surface of the columnar driving member (6), and the annular groove (601) is connected to the inner ring of the bearing installed inside the driving ring (4010); and plug-in columns (602) are provided in an annular array at the edges of both front and rear end surfaces of the columnar driving member (6).

9. The belt transmission drive motor with gear switching function according to claim 3, characterized in that: A circular sliding hole (603) is provided at the center of the front end surface of the columnar driving member (6), and four strip-shaped sliding blocks (604) are provided in a ring array inside the circular sliding hole (603). The four strip-shaped sliding blocks (604) are used for sliding connection with the four strip-shaped sliding grooves (3017).

10. The belt-driven driving motor with gear-shifting function according to claim 5, characterized in that: The oil delivery mechanism (5) comprises an oil delivery pump body (501), a transmission shaft (502), an oil delivery pipe (503), an oil injection pipe (504) and a second transmission pulley (505); the oil delivery pump body (501) is mounted on the upper end surface of the base (1), and the oil suction port of the oil delivery pump body (501) is connected to the oil outlet pipe (307) via an oil pipe; the input shaft of the oil delivery pump body (501) is fixedly connected to the transmission shaft (502), and the transmission shaft (502) is rotatably connected to the base The upper end surface of the seat (1); a second transmission pulley (505) is installed at the front end of the transmission shaft (502), and the second transmission pulley (505) is transmission-connected to the second driving pulley (202) via a belt; the oil outlet of the oil pump body (501) is connected to an oil delivery pipe (503), and the other end of the oil delivery pipe (503) is connected to an oil injection pipe (504), the oil injection pipe (504) is installed on the upper side of the transmission box (3), and an oil injection head is provided at the bottom of the oil injection pipe (504).

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