阅读说明：本技术 一种双蜗杆加行星轮系复合变速机构 (Double-worm and planetary gear train composite speed change mechanism ) 是由 王玉昌 于 2020-06-30 设计创作，主要内容包括：本发明涉及智能家居技术领域,尤其涉及一种双蜗杆加行星轮系复合变速机构,包括行星传动部以及与行星传动部驱动连接的电机总成,所述电机总成包括驱动电机,所述驱动电机的顶部设置有齿轮箱,所述齿轮箱的内部设置有第一蜗杆、第一传动部与第二传动部,所述驱动电机与第一蜗杆驱动连接,所述第一蜗杆与第一传动部传动连接,所述第一传动部与第二传动部传动连接,所述第二传动部设置有太阳轮,所述第二传动部通过太阳轮与行星传动部传动连接。本发明结构紧凑且设计合理,安装方便,有效降低生产成本,具有传动效率高,传动平稳性好,变速效果好的特点。(The invention relates to the technical field of intelligent home furnishing, in particular to a double-worm and planetary gear train compound speed change mechanism which comprises a planetary transmission part and a motor assembly in driving connection with the planetary transmission part, wherein the motor assembly comprises a driving motor, the top of the driving motor is provided with a gear box, a first worm, a first transmission part and a second transmission part are arranged in the gear box, the driving motor is in driving connection with the first worm, the first worm is in driving connection with the first transmission part, the first transmission part is in driving connection with the second transmission part, the second transmission part is provided with a sun gear, and the second transmission part is in driving connection with the planetary transmission part through the sun gear. The invention has the characteristics of compact structure, reasonable design, convenient installation, effective reduction of production cost, high transmission efficiency, good transmission stability and good speed change effect.)

1. A double-worm and planetary gear train composite speed change mechanism is characterized in that: including planet transmission portion and with the motor assembly that planet transmission portion drive is connected, motor assembly includes driving motor, driving motor's top is provided with the gear box, the inside of gear box is provided with first worm, first transmission portion and second transmission portion, driving motor is connected with first worm drive, first worm is connected with first transmission portion transmission, first transmission portion is connected with second transmission portion transmission, second transmission portion is provided with the sun gear, second transmission portion passes through the sun gear and is connected with planet transmission portion transmission.

2. The compound speed change mechanism of the double-worm and planetary gear train as claimed in claim 1, wherein: planetary drive portion includes the mount pad, the middle part of mount pad is provided with the connecting axle sleeve, the bottom of mount pad is provided with the planet carrier, the inside of planet carrier is provided with annular ring gear, the bottom of connecting axle sleeve is provided with a plurality of connecting hole, and a plurality of connecting hole is the triangle-shaped and arranges the distribution, the connecting axle has been installed to the connecting hole, the connecting axle is connected with the planet wheel, planet wheel and annular ring gear meshing, the sun gear passes planet carrier and planet wheel meshing.

3. The compound speed change mechanism of the double-worm and planetary gear train as claimed in claim 1, wherein: the first transmission part comprises a second worm, a first bevel gear is arranged at one end of the second worm, the first bevel gear is meshed with the first worm, first bearings are arranged at two ends of the second worm, a first pin shaft is arranged at the joint between the second worm and the first bevel gear, and a first gasket is arranged between the end parts of the first bevel gear and the second worm.

4. The compound speed change mechanism of the double-worm and planetary gear train as claimed in claim 1, wherein: the second transmission part comprises a power output shaft, the power output shaft is provided with a second bevel gear, the second bevel gear is meshed with a second worm, second bearings are arranged at two ends of the power output shaft, a second pin shaft is arranged at the joint between the power output shaft and the second bevel gear, a second gasket is arranged between the second bevel gear and the end part of the power output shaft, and the sun gear is connected with the top end of the power output shaft through a connecting screw.

5. The compound speed change mechanism of a double-worm and planetary gear train as claimed in claim 3, characterized in that: the second worm comprises a transmission section and a connecting section which are integrally formed, the connecting section is connected with the first bevel gear, a connecting through hole connected with the first pin shaft is formed in the connecting section, a connecting groove connected with the first gasket is formed in one end of the connecting section, and the end portion of the transmission section and the end portion of the connecting section are connected with the first bearing.

6. The compound speed change mechanism of the double-worm and planetary gear train as claimed in claim 2, wherein: the four corners of mount pad all is provided with the erection column, the erection column is provided with first mounting hole, first mounting hole is provided with first mounting screw, the terminal surface edge of mount pad is provided with the second mounting hole, the second mounting hole sets up second mounting screw, all be provided with first installation ear around the planet carrier, the second mounting screw passes the second mounting hole and is connected with first installation ear.

7. The compound speed change mechanism of a double worm and planetary gear train as claimed in claim 6, wherein: the middle part of mount pad is provided with fixed boss, all be provided with the second installation ear around fixed boss, the top of fixed boss is provided with the mount that is used for the fixed connection axle sleeve position, the four corners of mount all is provided with the third mounting hole, the third mounting hole is provided with the third installation screw, the third installation screw passes the third mounting hole and is connected with the second installation ear.

8. The compound speed change mechanism of the double-worm and planetary gear train as claimed in claim 2, wherein: the bottom of planet carrier is provided with the assembly casing, all be provided with the third installation ear around the assembly casing, the third installation ear is provided with the assembly screw, all be provided with around the gear box with third installation ear assorted fourth installation ear, the assembly screw passes the third installation ear and is connected with the fourth installation ear.

9. The compound speed change mechanism of the double-worm and planetary gear train as claimed in claim 1, wherein: the bottom of gear box is provided with the fixed orifices, the fixed orifices is provided with set screw, set screw passes the fixed orifices and is connected with driving motor.

Technical Field

The invention relates to the technical field of intelligent home furnishing, in particular to a double-worm and planetary gear train composite speed change mechanism.

Background

The speed variator is used to change the rotation speed and torque from engine, and can change the transmission ratio between output shaft and input shaft by fixing or stepping. The speed change transmission mechanism mostly uses common gear transmission, but common gear's installation accuracy requires highly, and the tolerance requirement in production is also very high, and the installation accuracy requires highly, leads to the gear box to scrap easily if the operation is careless, and the structure is complicated, and manufacturing cost is high, adopts the meshing connection between the common gear, if the meshing connection is too tight or the meshing that arouses is bad, leads to the transmission unstable, shakes greatly, and the variable speed effect is poor.

Disclosure of Invention

The invention aims to provide a double-worm and planetary gear train composite speed change mechanism aiming at the defects of the prior art, which has the characteristics of compact structure, reasonable design, convenient installation, effective reduction of production cost, high transmission efficiency, good transmission stability and good speed change effect.

In order to achieve the purpose, the double-worm and planetary gear train compound speed change mechanism comprises a planetary transmission part and a motor assembly in driving connection with the planetary transmission part, wherein the motor assembly comprises a driving motor, a gear box is arranged at the top of the driving motor, a first worm, a first transmission part and a second transmission part are arranged inside the gear box, the driving motor is in driving connection with the first worm, the first worm is in driving connection with the first transmission part, the first transmission part is in driving connection with the second transmission part, the second transmission part is provided with a sun gear, and the second transmission part is in driving connection with the planetary transmission part through the sun gear.

Preferably, planetary drive portion includes the mount pad, the middle part of mount pad is provided with the connecting axle sleeve, the bottom of mount pad is provided with the planet carrier, the inside of planet carrier is provided with annular ring gear, the bottom of connecting axle sleeve is provided with a plurality of connecting hole, and a plurality of connecting hole is the triangle-shaped and arranges the distribution, the connecting axle has been installed to the connecting hole, the connecting axle is connected with the planet wheel, the planet wheel meshes with annular ring gear, the sun gear passes planet carrier and planet wheel meshing.

Preferably, the first transmission part comprises a second worm, a first helical gear is arranged at one end of the second worm, the first helical gear is meshed with the first worm, first bearings are arranged at two ends of the second worm, a first pin shaft is arranged at the joint between the second worm and the first helical gear, and a first gasket is arranged between the end parts of the first helical gear and the second worm.

Preferably, the second transmission part comprises a power output shaft, the power output shaft is provided with a second bevel gear, the second bevel gear is meshed with a second worm, the two ends of the power output shaft are respectively provided with a second bearing, a second pin shaft is arranged at the joint between the power output shaft and the second bevel gear, a second gasket is arranged between the second bevel gear and the end part of the power output shaft, and the sun gear is connected with the top end of the power output shaft through a connecting screw.

Preferably, the second worm comprises a transmission section and a connection section which are integrally formed, the connection section is connected with the first bevel gear, a connection through hole connected with the first pin shaft is formed in the connection section, a connection groove connected with the first gasket is formed in one end of the connection section, and the end portion of the transmission section and the end portion of the connection section are both connected with the first bearing.

Preferably, the four corners of mount pad all is provided with the erection column, the erection column is provided with first mounting hole, first mounting hole is provided with first mounting screw, the terminal surface edge of mount pad is provided with the second mounting hole, the second mounting hole sets up second mounting screw, all be provided with first installation ear around the planet carrier, the second mounting screw passes the second mounting hole and is connected with first installation ear.

Preferably, the middle part of mount pad is provided with fixed boss, all be provided with the second installation ear around fixed boss, the top of fixed boss is provided with the mount that is used for the fixed connection axle sleeve position, the four corners of mount all is provided with the third mounting hole, the third mounting hole is provided with the third installation screw, the third installation screw passes the third mounting hole and is connected with the second installation ear.

Preferably, the bottom of planet carrier is provided with the assembly casing, all be provided with the third installation ear around the assembly casing, the third installation ear is provided with the assembly screw, all be provided with around the gear box with third installation ear assorted fourth installation ear, the assembly screw passes the third installation ear and is connected with the fourth installation ear.

Preferably, the bottom of the gear box is provided with a fixing hole, the fixing hole is provided with a fixing screw, and the fixing screw penetrates through the fixing hole to be connected with the driving motor.

The invention has the beneficial effects that: the utility model provides a compound speed change mechanism of double worm and planetary gear train, includes planetary drive portion and the motor assembly who is connected with planetary drive portion drive, motor assembly includes driving motor, driving motor's top is provided with the gear box, the inside of gear box is provided with first worm, first transmission portion and second transmission portion, driving motor is connected with first worm drive, first worm is connected with first transmission portion transmission, first transmission portion is connected with second transmission portion transmission, second transmission portion is provided with the sun gear, second transmission portion passes through the sun gear and is connected with planetary drive portion transmission.

The output shaft of driving motor and first worm integrated into one piece, the first worm of driving motor drive rotates, first worm is connected with the transmission of first transmission portion, and then drive the rotation of first transmission portion, first transmission portion is connected with the transmission of second transmission portion, and then drive the rotation of second transmission portion, second transmission portion passes through the sun gear and is connected with the transmission of planetary transmission portion, and then realize that the motor assembly passes through the outside rotatory operation of executive component of planetary transmission portion drive, realize the transmission of multistage continuous rotation output, high transmission efficiency, play good variable speed effect, the noise and the vibration of production are little. The invention has the characteristics of compact structure, reasonable design, convenient installation, effective reduction of production cost, high transmission efficiency, good transmission stability and good speed change effect.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the internal cross-sectional structure of the present invention.

Fig. 3 is an exploded view of the planetary transmission of the present invention.

Fig. 4 is a schematic structural diagram of the planet carrier of the present invention.

Fig. 5 is a schematic structural view of the motor assembly of the present invention.

Fig. 6 is an exploded view of the motor assembly of the present invention.

Fig. 7 is a schematic view of the second worm of the present invention.

The reference numerals include:

1-planetary drive

11-mounting seat 111-mounting column 112-first mounting hole

113-first mounting screw 114-second mounting hole 115-second mounting screw

116-fixing boss 117-second mounting ear 118-fixing frame

119-third mounting hole 1110-third mounting screw

12-connecting shaft sleeve 13-planet carrier 131-first mounting lug

Connecting shaft of 14-annular gear ring 15-connecting hole 16

17-planet wheel

18-assembly housing 181-third mounting lug 182-assembly screw

2-motor assembly 21-driving motor 22-gear box

221-fourth mounting ear 222-fixing hole 223-fixing screw

23-first worm

24-first transmission part 241-second worm 2411-transmission section

2412 connecting section 2413 connecting through hole 2414 connecting groove

242-first helical gear 243-first bearing 244-first pin shaft

245-first spacer

25-second transmission part 251-power output shaft 252-second bevel gear

253-second bearing 254-second pin 255-second spacer

26-sun gear 27-attachment screw.

Detailed Description

The present invention is described in detail below with reference to the attached drawings.

As shown in fig. 1 to 7, the double-worm and planetary gear train compound speed change mechanism of the present invention includes a planetary transmission portion 1 and a motor assembly 2 in driving connection with the planetary transmission portion 1, wherein the motor assembly 2 includes a driving motor 21, a gear box 22 is disposed on a top of the driving motor 21, a first worm 23, a first transmission portion 24 and a second transmission portion 25 are disposed inside the gear box 22, the driving motor 21 is in driving connection with the first worm 23, the first worm 23 is in driving connection with the first transmission portion 24, the first transmission portion 24 is in driving connection with the second transmission portion 25, the second transmission portion 25 is provided with a sun gear 26, and the second transmission portion 25 is in driving connection with the planetary transmission portion 1 through the sun gear 26.

The output shaft of driving motor 21 and first worm 23 integrated into one piece, driving motor 21 drives first worm 23 and rotates, first worm 23 is connected with the transmission of first transmission portion 24, and then drive first transmission portion 24 and rotate, first transmission portion 24 is connected with the transmission of second transmission portion 25, and then drive second transmission portion 25 and rotate, second transmission portion 25 is connected with the transmission of planetary transmission portion 1 through sun gear 26, and then realize that motor assembly 2 drives outside executive component rotation operation through planetary transmission portion 1, realize the transmission of multistage continuous rotation output, high transmission efficiency, play good variable speed effect, the noise and the vibration of production are little. The invention has the characteristics of compact structure, reasonable design, convenient installation, effective reduction of production cost, high transmission efficiency, good transmission stability and good speed change effect.

As shown in fig. 1, 2 and 3, the planetary transmission portion 1 of this embodiment includes a mounting base 11, the middle part of the mounting base 11 is provided with a connecting shaft sleeve 12, the bottom of the mounting base 11 is provided with a planet carrier 13, the inside of the planet carrier 13 is provided with an annular gear ring 14, the bottom of the connecting shaft sleeve 12 is provided with a plurality of connecting holes 15, the plurality of connecting holes 15 are distributed in a triangular arrangement, a connecting shaft 16 is installed in the connecting holes 15, the connecting shaft 16 is connected with a planet wheel 17, the planet wheel 17 is meshed with the annular gear ring 14, and the sun wheel 26 passes through the planet carrier 13 and is meshed with the planet wheel 17. Specifically, the planetary transmission part 1 is fixedly mounted at a specific working position through the mounting base 11, the driving motor 21 drives the sun gear 26 to rotate through the gear box 22, the three planet gears 17 are correspondingly inserted into the three connecting holes 15 through the three connecting shafts 16, so that the three planet gears 17 are arranged and distributed at the bottom of the connecting shaft sleeve 12 in a triangular shape, on one hand, the sun gear 26 is located in the middle of the three planet gears 17, the three planet gears 17 are meshed with the outer surface of the sun gear 26 and rotate around the sun gear 26, on the other hand, the planet carrier 13 is located outside the three planet gears 17, the three planet gears 17 are meshed with the inner surface of the planet carrier 13 and rotate circumferentially along the planet carrier 13, so that the three planet gears 17 are driven to efficiently transmit between the sun gear 26 and the planet carrier 13, the structure is compact, the transmission efficiency is high, and then the connecting shaft sleeve 12 is connected with an external execution component to drive the external execution component to rotate, so that the structure is simple and compact, and the driving connection is reliable.

As shown in fig. 5 and 6, the first transmission part 24 of the present embodiment includes a second worm gear 241, one end of the second worm gear 241 is provided with a first bevel gear 242, the first bevel gear 242 is engaged with the first worm 23, both ends of the second worm gear 241 are provided with first bearings 243, a first pin 244 is provided at a connection between the second worm gear 241 and the first bevel gear 242, and a first gasket 245 is provided between the first bevel gear 242 and an end of the second worm gear 241. Specifically, both ends of the second worm 241 are horizontally installed inside the gear box 22 through the first bearing 243, so as to effectively support the structure of the second worm 241, reduce the friction coefficient of the second worm 241 during the rotation process, and ensure the rotation precision of the second worm 241, the first bevel gear 242 is fixedly installed at one end of the second worm 241 through the first gasket 245, the driving motor 21 drives the first worm 23 to rotate, the first worm 23 is meshed with the first bevel gear 242 to drive the first bevel gear 242 to rotate, the first bevel gear 242 is connected with the second worm 241 through the first pin 244 to further drive the second worm 241 to rotate, the second worm 241 is in transmission connection with the second transmission part 25 to further drive the second transmission part 25 to rotate, the structure is compact, and the transmission efficiency is high.

As shown in fig. 5 and 6, the second transmission part 25 of the present embodiment includes a power output shaft 251, the power output shaft 251 is provided with a second bevel gear 252, the second bevel gear 252 is engaged with the second worm 241, both ends of the power output shaft 251 are provided with second bearings 253, a second pin 254 is provided at a connection between the power output shaft 251 and the second bevel gear 252, a second gasket 255 is provided between the second bevel gear 252 and an end of the power output shaft 251, and the sun gear 26 is connected to a top end of the power output shaft 251 through a connection screw 27. Specifically, both ends of the power output shaft 251 are installed between the motor assembly 2 and the planetary transmission portion 1 through the second bearing 253, the second helical gear 252 is fixedly installed at one end of the power output shaft 251 through the second gasket 255, the second worm 241 is meshed with the second helical gear 252 to drive the second helical gear 252 to rotate, the second helical gear 252 is connected with the power output shaft 251 through the second pin shaft 254 to drive the power output shaft 251 to rotate, the sun gear 26 is connected to the top end of the power output shaft 251 through the connecting screw 27 to drive the sun gear 26 to rotate, the structure is compact, and the transmission efficiency is high.

As shown in fig. 6 and 7, the second worm 241 of the present embodiment includes a transmission section 2411 and a connection section 2412 which are integrally formed, the connection section 2412 is connected to the first bevel gear 242, the connection section 2412 is provided with a connection through hole 2413 connected to the first pin 244, one end of the connection section 2412 is provided with a connection groove 2414 connected to the first spacer 245, and an end of the transmission section 2411 and an end of the connection section 2412 are both connected to the first bearing 243. Specifically, the integrally formed transmission section 2411 and the connection section 2412 are respectively located on the rod body of the second worm 241, the second pin shaft 254 passes through the connection through hole 2413 to be connected with the second bevel gear 252, so that the power output shaft 251 is stably connected with the second bevel gear 252 through the second pin shaft 254, the connection section 2412 is stably connected with the first gasket 245 through the connection groove 2414, and the two first bearings 243 are respectively connected to the end of the transmission section 2411 and the end of the connection section 2412, so that the structure is simple, the connection is firm, and looseness is not easily generated.

As shown in fig. 3, four corners of the mounting seat 11 of this embodiment are provided with mounting columns 111, the mounting columns 111 are provided with first mounting holes 112, the first mounting holes 112 are provided with first mounting screws 113, the edge of the end surface of the mounting seat 11 is provided with second mounting holes 114, the second mounting holes 114 are provided with second mounting screws 115, the planet carrier 13 is provided with first mounting lugs 131 all around, and the second mounting screws 115 pass through the second mounting holes 114 and are connected with the first mounting lugs 131. Specifically, on the one hand, the mount pad 11 is correspondingly inserted into the four mounting posts 111 and passes through the four first mounting holes 112 and is fixedly connected with the specific working position through the four first mounting screws 113, so that the installation is convenient and fast, the connection is stable, on the other hand, the mount pad 11 correspondingly passes through the four second mounting holes 114 and is connected with the first mounting ears 131 through the four second mounting screws 115, and then the fixed connection between the mount pad 11 and the planet carrier 13 is realized, the installation and the disassembly are convenient, and the installation is firm and is not easy to loosen.

As shown in fig. 3, a fixing boss 116 is disposed in the middle of the mounting seat 11 of this embodiment, second mounting lugs 117 are disposed around the fixing boss 116, a fixing frame 118 for fixedly connecting the positions of the shaft sleeves 12 is disposed at the top of the fixing boss 116, third mounting holes 119 are disposed at four corners of the fixing frame 118, third mounting screws 1110 are disposed in the third mounting holes 119, and the third mounting screws 1110 penetrate through the third mounting holes 119 and are connected to the second mounting lugs 117. Specifically, connecting sleeve 12 cup joints in the middle part of mount pad 11, and third mounting screw 1110 passes third mounting hole 119 and is connected with second installation ear 117, and then realizes connecting sleeve 12 fixed connection in fixed boss 116 through mount 118, and the position is fixed effectual, and job stabilization nature is high.

As shown in fig. 3 and 4, the assembly housing 18 is disposed at the bottom of the planet carrier 13 of the present embodiment, third mounting lugs 181 are disposed around the assembly housing 18, an assembly screw 182 is disposed on each third mounting lug 181, fourth mounting lugs 221 matched with the third mounting lugs 181 are disposed around the gear box 22, and the assembly screw 182 passes through the third mounting lugs 181 and is connected to the fourth mounting lugs 221. Specifically, the assembling screws 182 correspondingly penetrate through the third mounting lugs 181 and are connected with the fourth mounting lugs 221, so that the assembling between the assembling shell 18 and the gear case 22 is realized, the connecting strength and the connecting reliability are greatly enhanced, and the connecting sealing performance is good.

As shown in fig. 5 and 6, the bottom of the gear housing 22 of the present embodiment is provided with a fixing hole 222, and the fixing hole 222 is provided with a fixing screw 223, and the fixing screw 223 passes through the fixing hole 222 to be connected with the driving motor 21. Specifically, four fixing screws 223 correspondingly penetrate through the four fixing holes 222 to be connected with the driving motor 21, so that the fixed connection between the gear box 22 and the driving motor 21 is realized, the connection is stable and reliable, and the working stability is improved.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.