Double-motor double-speed-ratio reduction gear box structure

Abstract

The utility model discloses a double-motor double-speed-ratio reduction gear box structure, which relates to the field of reduction gear box structures, and comprises a device shell, a driving device is arranged at one end outside the device shell, the driving device comprises a first motor and a second motor, a fourth transmission shaft is arranged at the output end of the first motor, and a fifth transmission shaft is arranged at the output end of the second motor. The fourth transmission shaft extends into the device shell, a third transmission shaft is arranged at the output end of the second motor, a main speed change structure matched with the first motor is arranged in the device shell, and a secondary speed change structure matched with the second motor is arranged in the device shell. According to the utility model, through the arrangement of dual-power input, the corresponding speed change structures are connected, so that the speed change device changes the speed of transmission, two power sources with different speed change ratios are obtained according to the difference of the speed change structures, and then the device is coupled, so that the power is output from one end, and different output rotating speeds are controlled according to the speed change requirements of different components.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of reduction gear box structure, concretely to a double motor double speed ratio reduction gear box structure. BACKGROUND

[0002] The reduction gear box, as the name implies, is a device for reducing speed, which is mainly composed of gears, shafts, boxes and other components, and realizes the function of speed reduction through gear transmission principle.

[0003] The working principle of the reduction gear box is very simple, that is, through gear transmission reduction, the reduction gear box is composed of multiple gears, and power is transmitted between gears of different sizes to reduce speed and increase torque. When the input shaft rotates, it drives the rotation of the first gear, which in turn drives the rotation of the second gear, and so on until the output shaft rotates. Therefore, the reduction gear box can convert the high-speed rotation of the input shaft into the low-speed rotation of the output shaft, and also increase the torque, so as to convert the input power into the output power. According to different use requirements, there are different requirements for the output speed of the gearbox, so the existing reduction gear box will set a gear shifting structure to control the motor speed and thus control the output speed.

[0004] However, the existing reduction gear box only has a fixed reduction ratio, and the motor speed is adjusted to control the high and low speed, which results in insufficient output torque in low speed working condition. CONTENT OF THE UTILITY MODEL

[0005] Therefore, the utility model aims to provide a double motor double speed ratio reduction gear box structure to solve the technical problem that the existing reduction gear box only has a fixed reduction ratio, and the motor speed is adjusted to control the high and low speed, which results in insufficient output torque in low speed working condition.

[0006] To achieve the above object, the utility model provides the following technical scheme: a double motor double speed ratio reduction gear box structure, including device shell, device shell outside one end is provided with drive arrangement, drive arrangement includes first motor and second motor, first motor output is provided with fourth transmission shaft, fourth transmission shaft extends to device shell, second motor output is provided with third transmission shaft, the device shell is provided with main speed change structure cooperation first motor, the device shell is provided with secondary speed change structure cooperation second motor, main speed change structure includes first planetary gear frame, first planetary gear frame is provided with a plurality of first planetary gears, a plurality of first planetary gears are engaged with the inner ring of first planetary gear frame and are provided, a plurality of first planetary gears are provided with fourth transmission gear, fourth transmission gear is connected with fourth transmission shaft, first planetary gear frame below is provided with second rotating disc, second rotating disc is provided with a plurality of first clamping rods cooperation a plurality of first planetary gears, first clamping rod passes through first planetary gear and is provided, second rotating disc below is provided with second planetary gear frame, second planetary gear frame is provided with a plurality of second planetary gears, second planetary gears are engaged with the inner ring of second planetary gear frame and are provided, second rotating disc bottom is provided with fifth transmission gear, fifth transmission gear is engaged with a plurality of second planetary gears and is provided, second planetary gear frame below is provided with first rotating disc, first rotating disc is provided with a plurality of second clamping rods cooperation a plurality of second planetary gears, second clamping rod passes through second planetary gear and is provided, first rotating disc below is provided with second clamping block, second clamping block is connected with first rotating disc and is provided, fifth transmission shaft is provided on second clamping block, fifth transmission shaft is rotatably arranged with device shell, third transmission gear is provided on fifth transmission shaft.

[0007] By adopting the above technical scheme, the effect of power transmission to the rear end is achieved through the multi-stage speed change gear design of the active speed change structure.

[0008] The utility model further sets up, the secondary speed change structure includes first transmission gear, third transmission shaft passes through first transmission gear fixedly arranged, first transmission gear one side is provided with second transmission gear, second transmission gear below is provided with sixth transmission gear, sixth transmission gear below is provided with second fixed block, second fixed block is fixed with device shell arrangement, sixth transmission gear below is provided with limit block, limit block passes through second fixed block setting, second fixed block sets into bevel angle structure, second fixed block cooperation limit block opens limit slot, second transmission gear bottom is provided with a plurality of baffle, sixth transmission gear top cooperation baffle opens top groove, limit block bottom is provided with, the device shell is in cooperation second transmission gear and sixth transmission gear and is provided with sixth transmission shaft, sixth transmission shaft passes through second transmission gear and sixth transmission gear setting, sixth transmission shaft is fixedly connected with second transmission gear, sixth transmission shaft is rotatably connected with sixth transmission gear.

[0009] Through adopting the technical scheme, the power is transmitted to the planet carrier on the main speed change structure through the secondary speed change structure, and the power is transmitted to the rear end, so that the power input of two different ends drives the rear end assembly.

[0010] The utility model further sets up, the device shell inside cooperation main speed change structure is provided with transmission structure, transmission structure includes double -deck gear, double -deck gear cooperation third transmission gear is provided with, double -deck gear one side is provided with seventh transmission gear, the device shell is in cooperation seventh transmission gear and is provided with second transmission shaft, second transmission shaft one end is rotatably arranged with device shell, and the other end passes through seventh transmission gear and extends to device shell outside, the device shell is in cooperation seventh transmission gear one side and is provided with eighth transmission gear, the device shell is in cooperation eighth transmission gear and is provided with first transmission shaft, first transmission shaft one end is rotatably connected with device shell, and the other end extends to device shell, the device shell is on cooperation first transmission shaft and is provided with first fixed block.

[0011] Through adopting the technical scheme, the power output by the speed change structure is conducted through the transmission structure, and the assembly is driven, and the speed is controlled by the speed change structure.

[0012] The utility model further sets up, first planet carrier is provided with a plurality of first clamping blocks outside a week, the device shell is in cooperation first clamping block and is provided with clamping groove.

[0013] Through adopting the technical scheme, the first planet carrier is installed in the device shell through the clamping groove cooperation clamping block, and the first planet carrier is limited and fixed.

[0014] The utility model further sets up, the device shell top cooperation first motor and second motor are provided with the shim.

[0015] Through adopting above technical scheme, the transmission of motor rotation vibration is reduced through the setting of the shim, and the influence on the several gears in the device shell is reduced.

[0016] The utility model further sets up, the limit block bottom is provided with the spring, the limit block bottom cooperation spring is provided with the slot, the spring is connected with the device shell, the limit block is provided with a plurality of limit recesses, the limit groove cooperation limit recess is provided with a plurality of limit lugs.

[0017] Through adopting above technical scheme, the spring is installed through the setting of the slot, the sixth transmission gear is reset through the setting of the spring, and the friction of the gear rotation is increased through the cooperation of the limit lug and the limit recess, so that the one-way locking force of the gear is increased.

[0018] The utility model further sets up, the sixth transmission gear is engaged with the second planetary gear carrier outer circle.

[0019] Through adopting above technical scheme, the power of the secondary transmission structure is conducted to the main transmission structure through the sixth transmission gear.

[0020] The utility model further sets up, the device shell top cooperation second transmission gear is provided with the friction bearing.

[0021] Through adopting above technical scheme, the certain friction of the whole assembly is increased through the setting of the friction bearing, the resistance is increased, and the wear resistance of the specified position part is enhanced.

[0022] Summarized above, the utility model mainly has following beneficial effect:

[0023] 1, the utility model discloses a double power input is set up, and the corresponding transmission structure is connected, so that the transmission of the transmission device is speed changed, and two different power sources of different transmission ratios are obtained according to the different transmission structures, and then the device is coupled, so that the power is output from one end, and then the output speed of different components is controlled according to the speed change demand.

[0024] 2, the utility model discloses the stop block cooperation top groove, so that only when the second motor output drives the second transmission gear to rotate, the sixth transmission gear is moved down under the action of the stop block, so that the limit block is separated from the limit groove, and the friction between the limit block and the limit groove is lacking at this time, and the second transmission gear can rotate normally, and vice versa, which represents no power input, and the limit block contacts the limit groove under the action of the spring at this time, and the friction is increased through the friction surface arranged on the limit block, so that the overturning is difficult, so that the one-way transmission of the power is realized. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the whole structure schematic diagram of the utility model;

[0026] Figure 2 It is the internal structure schematic diagram of the utility model;

[0027] Figure 3 It is the internal partial structure schematic diagram of the utility model;

[0028] Figure 4 It is the transmission structure schematic diagram of the utility model;

[0029] Figure 5 It is the main speed change structure schematic diagram of the utility model;

[0030] Figure 6 It is the secondary speed change structure schematic diagram of the utility model;

[0031] Figure 7 It is the secondary speed change structure explosion schematic diagram of the utility model;

[0032] Figure 8 It is the device shell internal structure schematic diagram of the utility model;

[0033] Figure 9 It is the partial structure side schematic diagram of the utility model.

[0034] In the drawing: 1, device shell; 2, pad plate; 3, first motor; 4, second motor; 5, first transmission shaft; 6, first fixed block; 7, second transmission shaft; 8, clamping groove; 9, third transmission shaft; 10, first transmission gear; 11, second fixed block; 12, second transmission gear; 13, first clamping block; 14, first planetary gear carrier; 15, second planetary gear carrier; 16, first rotary disc; 17, second clamping block; 18, third transmission gear; 19, first planetary wheel; 20, second rotary disc; 21, first clamping rod; 22, fourth transmission gear; 23, fifth transmission gear; 24, fourth transmission shaft; 25, second planetary wheel; 26, sixth transmission gear; 27, slot; 28, second clamping rod; 29, fifth transmission shaft; 30, limiting block; 31, double-layer gear; 32, seventh transmission gear; 33, eighth transmission gear; 34, sixth transmission shaft; 35, stop block; 36, top slot; 37, limiting slot; 38, spring; 39, friction bearing; 40, limiting protrusion; 41, limiting recess. DETAILED DESCRIPTION

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] The embodiments of this utility model will be described below based on its overall structure.

[0037] A dual-motor, dual-speed-ratio reduction gearbox structure, such as Figures 1-9 As shown, the device includes a housing 1. A drive unit is provided at one end of the housing 1. The drive unit includes a first motor 3 and a second motor 4. A fourth transmission shaft 24 is provided at the output end of the first motor 3, extending into the housing 1. A third transmission shaft 9 is provided at the output end of the second motor 4. A main transmission structure is provided inside the housing 1 in conjunction with the first motor 3, and a secondary transmission structure is provided inside the housing 1 in conjunction with the second motor 4. The main transmission structure includes a first planetary gear carrier 14, and a plurality of second planetary gears are arranged around the outer circumference of the first planetary gear carrier 14. A first locking block 13 is provided. A locking groove 8 is formed inside the outer casing 1 of the device to cooperate with the first locking block 13. The first planetary gear carrier 14 is installed and limited by the locking groove 8 to prevent rotation. A plurality of first planetary gears 19 are provided inside the first planetary gear carrier 14, and the plurality of first planetary gears 19 mesh with the inner ring of the first planetary gear carrier 14. A fourth transmission gear 22 is provided between the plurality of first planetary gears 19, and the fourth transmission gear 22 is connected to a fourth transmission shaft 24. A second turntable 20 is provided below the first planetary gear carrier 14. A plurality of first locking levers 21 are provided on the second turntable 20 to engage with a plurality of first planetary gears 19. The first locking levers 21 pass through the first planetary gears 19. A second planetary gear carrier 15 is provided below the second turntable 20. A plurality of second planetary gears 25 are provided inside the second planetary gear carrier 15, and the second planetary gears 25 mesh with the inner ring of the second planetary gear carrier 15. A fifth transmission gear 23 is provided at the bottom of the second turntable 20, and the fifth transmission gear 23 meshes with the plurality of second planetary gears 25. A first turntable 16 is provided below the second planetary gear carrier 15. The first turntable 16 is equipped with several second planetary gears 25 and several second locking rods 28. The second locking rods 28 pass through the second planetary gears 25. A second locking block 17 is set below the first turntable 16 and is locked to the first turntable 16. A fifth transmission shaft 29 is set on the second locking block 17. The fifth transmission shaft 29 is rotatably connected to the outer casing 1 of the device. A third transmission gear 18 is set on the fifth transmission shaft 29. The main speed change structure is to perform two-stage speed change on the power output by the first motor 3 through the two sets of planetary gears, and then output the power through the fifth transmission shaft 29.

[0038] With it, the secondary transmission structure includes a first transmission gear 10, the third transmission shaft 9 is fixedly arranged through the first transmission gear 10, one side of the first transmission gear 10 is provided with a second transmission gear 12, a friction bearing 39 is arranged in the top of the device shell 1 matched with the second transmission gear 12, the friction bearing 39 is arranged to increase the friction force in the whole assembly, increase the resistance, and enhance the wear resistance of the specified position parts, a sixth transmission gear 26 is arranged below the second transmission gear 12, the sixth transmission gear 26 is engaged with the outer ring of the second planetary gear carrier 15, a second fixed block 11 is arranged below the sixth transmission gear 26, the second fixed block 11 is fixedly arranged with the device shell 1, a limiting block 30 is arranged below the sixth transmission gear 26, the limiting block 30 is arranged through the second fixed block 11, the second fixed block 11 is arranged in an inclined angle structure, a limiting groove 37 is opened in the second fixed block 11 matched with the limiting block 30, a plurality of limiting recesses 41 are opened around the limiting block 30, a plurality of limiting protrusions 40 are arranged in the limiting groove 37 matched with the limiting recesses 41, the limiting recesses 41 and the limiting protrusions 40 are matched to increase the one-way locking force of the gear rotation, a plurality of stop blocks 35 are arranged at the bottom of the second transmission gear 12, a top groove 36 is opened in the top of the sixth transmission gear 26 matched with the stop block 35, in particular, a protruding structure is arranged at the bottom of the stop block 35 matched with 36, so as to increase the friction force during rotation, so as to further improve the one-way locking force, a sixth transmission shaft 34 is arranged in the device shell 1 matched with the second transmission gear 12 and the sixth transmission gear 26, the sixth transmission shaft 34 is arranged through the second transmission gear 12 and the sixth transmission gear 26, the sixth transmission shaft 34 is fixedly connected with the second transmission gear 12, and the sixth transmission shaft 34 is rotatably connected with the sixth transmission gear 26. The main function of the secondary transmission structure is to prevent the reverse rotation of the device gear when there is no power input. A spring 38 is arranged at the bottom of the limiting block 30, a slot 27 is opened at the bottom of the limiting block 30 matched with the spring 38, the spring 38 is connected with the device shell 1, in the case where there is no power input, the limiting block 30 is lifted up by the spring 38, the top surface of the limiting block 30 is separated from the limiting groove 37, the top surface of the limiting block 30 is provided with a material or structure with high friction coefficient, so that the limiting block 30 is difficult to rotate when it contacts with the limiting groove 37, thereby preventing the reverse rotation of the second planetary gear carrier 15. In actual use, if the first motor 3 or the second motor 4 has power input, the second transmission gear 12 will rotate when transmitting power at this time, the stop block 35 arranged at the bottom will rotate with the second transmission gear 12, at this time, the top groove 36 arranged on the sixth transmission gear 26 will press down the sixth transmission gear 26 arranged movably, at this time, the limiting block 30 loses contact with the top surface of the limiting groove 37, at this time, the sixth transmission gear 26 can rotate normally, thereby achieving the purpose of preventing the reverse rotation of the gear.

[0039] Further, the inner bottom of the device shell 1 is provided with a transmission structure matched with the main transmission structure, the transmission structure comprises a double-layer gear 31 matched with the third transmission gear 18, one side of the double-layer gear 31 is provided with a seventh transmission gear 32, the device shell 1 is provided with a second transmission shaft 7 matched with the seventh transmission gear 32, one end of the second transmission shaft 7 is rotationally arranged with the device shell 1, and the other end extends to the outside of the device shell 1 through the seventh transmission gear 32, the device shell 1 is provided with an eighth transmission gear 33 matched with the seventh transmission gear 32 on one side, the device shell 1 is provided with a first transmission shaft 5 matched with the eighth transmission gear 33, one end of the first transmission shaft 5 is rotationally connected with the device shell 1, and the other end extends to the device shell 1, the device shell 1 is provided with a first fixed block 6 matched with the first transmission shaft 5, the power output by the first motor 3 and the second motor 4 is transmitted through the main transmission structure and the secondary transmission structure, and then output through the fifth transmission shaft 29, so as to drive the third transmission gear 18 on the fifth transmission shaft 29 to rotate, and then drive the first transmission shaft 5 and the second transmission shaft 7 for output to be connected with other components, and the structure device controls the rotating speed thereof, different power sources with two different transmission ratios are obtained according to different transmission structures, and the device is coupled, so that the power is output from one end, and different output rotating speeds are controlled according to different transmission requirements of different components.

[0040] The device shell 1 is provided with a pad plate 2 matched with the first motor 3 and the second motor 4 on the top, the pad plate is arranged to reduce the conduction of motor rotating vibration and reduce the influence on the gears in the device shell.

[0041] Although the embodiments of the utility model have been shown and described, the specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and changes of the embodiments without creative contribution after reading the specification without departing from the principles and purposes of the utility model, but as long as in the range of the claims of the utility model, it is protected by the patent law.

Claims

1. A double motor double speed ratio reduction gear box structure, comprising a device housing (1), a driving device is arranged at an outer end of the device housing (1), the driving device comprises a first motor (3) and a second motor (4), a fourth transmission shaft (24) is arranged at an output end of the first motor (3), the fourth transmission shaft (24) extends into the device housing (1), a third transmission shaft (9) is arranged at an output end of the second motor (4), characterized in that: The device shell (1) is provided with a main transmission structure matched with the first motor (3), and the device shell (1) is provided with a secondary transmission structure matched with the second motor (4), the main transmission structure comprises a first planetary gear carrier (14), a plurality of first planetary gears (19) are arranged in the first planetary gear carrier (14), the plurality of first planetary gears (19) are arranged in mesh with the inner ring of the first planetary gear carrier (14), a fourth transmission gear (22) is arranged between the plurality of first planetary gears (19), the fourth transmission gear (22) is connected with a fourth transmission shaft (24), a second rotating disc (20) is arranged below the first planetary gear carrier (14), a plurality of first clamping rods (21) are arranged on the second rotating disc (20) matched with the plurality of first planetary gears (19), the first clamping rods (21) penetrate through the first planetary gears (19), a second planetary gear carrier (15) is arranged below the second rotating disc (20), a plurality of second planetary gears (25) are arranged in the second planetary gear carrier (15), the plurality of second planetary gears (25) are arranged in mesh with the inner ring of the second planetary gear carrier (15), a fifth transmission gear (23) is arranged at the bottom of the second rotating disc (20), the fifth transmission gear (23) is arranged in mesh with the plurality of second planetary gears (25), a first rotating disc (16) is arranged below the second planetary gear carrier (15), a plurality of second clamping rods (28) are arranged on the first rotating disc (16) matched with the plurality of second planetary gears (25), the second clamping rods (28) penetrate through the second planetary gears (25), a second clamping block (17) is arranged below the first rotating disc (16), the second clamping block (17) is arranged in clamping connection with the first rotating disc (16), a fifth transmission shaft (29) is arranged on the second clamping block (17), the fifth transmission shaft (29) is arranged in rotation with the device shell (1), and a third transmission gear (18) is arranged on the fifth transmission shaft (29).

2. A twin motor, twin ratio reduction gearbox structure as claimed in claim 1, characterized in that: The secondary variable speed structure comprises a first transmission gear (10), the third transmission shaft (9) is fixedly arranged through the first transmission gear (10), one side of the first transmission gear (10) is provided with a second transmission gear (12), the second transmission gear (12) is provided below with a sixth transmission gear (26), the sixth transmission gear (26) is provided below with a second fixed block (11), the second fixed block (11) is fixedly arranged with the device shell (1), the sixth transmission gear (26) is provided below with a limiting block (30), the limiting block (30) is arranged through the second fixed block (11), the second fixed block (11) is arranged in an inclined angle structure, the second fixed block (11) is matched with the limiting block (30) and is provided with a limiting groove (37), the second transmission gear (12) is provided at the bottom with a plurality of stop blocks (35), the sixth transmission gear (26) is matched with the stop block (35) and is provided with a top groove (36) at the top, the limiting block (30) is provided at the bottom, the device shell (1) is matched with the second transmission gear (12) and the sixth transmission gear (26) and is provided with a sixth transmission shaft (34), the sixth transmission shaft (34) is arranged through the second transmission gear (12) and the sixth transmission gear (26), the sixth transmission shaft (34) is fixedly connected with the second transmission gear (12), and the sixth transmission shaft (34) is rotatably connected with the sixth transmission gear (26).

3. A twin motor, twin ratio reduction gear box structure as claimed in claim 1, wherein: The device shell (1) is matched with the main variable speed structure and is provided with a transmission structure at the bottom, the transmission structure comprises a double-layer gear (31), the double-layer gear (31) is matched with the third transmission gear (18), one side of the double-layer gear (31) is provided with a seventh transmission gear (32), the device shell (1) is matched with the seventh transmission gear (32) and is provided with a second transmission shaft (7), one end of the second transmission shaft (7) is rotatably arranged with the device shell (1), the other end extends to the outside of the device shell (1) through the seventh transmission gear (32), the device shell (1) is matched with the seventh transmission gear (32) on one side and is provided with an eighth transmission gear (33), the device shell (1) is matched with the eighth transmission gear (33) and is provided with a first transmission shaft (5), one end of the first transmission shaft (5) is rotatably connected with the device shell (1), the other end extends to the device shell (1), and the device shell (1) is matched with the first transmission shaft (5) and is provided with a first fixed block (6) on the top.

4. A twin motor, twin ratio reduction gear box structure as claimed in claim 1, wherein: A plurality of first clamping blocks (13) are arranged on the outer side of the first planetary gear carrier (14), and a clamping groove (8) is formed in the device shell (1) matched with the first clamping block (13).

5. A twin motor, twin ratio reduction gear box structure as claimed in claim 1, wherein: The device shell (1) is matched with the first motor (3) and the second motor (4) and is provided with a backing plate (2) on the top.

6. A twin motor, twin ratio reduction gear box structure as claimed in claim 2, wherein: The bottom of the limiting block (30) is provided with a spring (38), the bottom of the limiting block (30) is provided with a slot (27) matched with the spring (38), the spring (38) is connected with the device shell (1), a plurality of limiting grooves (41) are arranged around the limiting block (30), and a plurality of limiting protrusions (40) are arranged in the limiting groove (37) matched with the limiting grooves (41).

7. A twin motor, twin ratio reduction gear box structure as claimed in claim 2, wherein: The sixth transmission gear (26) is engaged with the outer ring of the second planetary gear carrier (15).

8. A dual motor dual ratio reduction gearbox structure as claimed in claim 1, wherein: The friction bearing (39) is arranged in the device shell (1) matched with the second transmission gear (12).

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