CN220268370U - Novel compound planetary reduction device - Google Patents

Abstract

The utility model relates to the technical field of planetary speed reducers, in particular to a novel compound planetary speed reducer, an input shaft is arranged at the center of a box body, the novel compound planetary speed reducer is connected with a sun gear and meshed with a large planetary gear, a small planetary gear is fixed on the large planetary gear coaxially through an inner-outer tooth buckle mode and meshed with a satellite gear, the satellite gear is meshed with a gear ring, a needle roller is arranged on the inner side of the ring roller and arranged on the outer ring of a pin shaft, fixing frames are arranged on the two sides of the pin shaft, a bearing five is arranged between the outer side of a peripheral fixing sleeve of the input shaft and the box body, one side of the box body is connected with a bearing seat through a screw two, and the bearing three is arranged on the two sides of the small planetary gear and fixed with a support through a screw one.

Description

Novel compound planetary reduction device

Technical Field

The utility model relates to the technical field of planetary speed reducers, in particular to a novel compound planetary speed reducer.

Background

The composite planetary gear reducer is an industrial product with wide application, is suitable for various mechanical equipment, including aerospace, wind power, automobiles and the like, and is mainly used in the industrial industries of robot joints, machine tool equipment rotating tables and the like.

The speed reducer in the prior art needs the mounting panel when being connected with the motor, and part quantity is more, has influenced reliability and the intensity of structure, and thereby transmission length is longer to appear vibrations.

Based on the reasons, the novel compound planetary speed reducer is designed, the fixation of a satellite wheel is increased, an installation plate is not required to be added, the number of parts is fewer, the structural strength is increased, and the vibration condition during use is reduced.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides a novel compound planetary reduction device which increases the fixation of a satellite wheel, does not need to increase a mounting plate, has fewer parts, increases the structural strength and reduces the vibration condition during use.

In order to achieve the above object, the utility model provides a novel compound planetary reduction gear, which comprises a chassis, an input shaft, an output end, a bearing pedestal, an oil seal, a support, a small planetary gear, a large planetary gear, a needle roller, a planetary gear, a pin shaft, a first screw, a second screw, a first bearing, a second bearing, a third bearing, a fourth bearing, a fifth bearing, a sun gear, a baffle plate, a gear ring and a fixing frame, wherein the center of the box is provided with the input shaft, the inner side of the input shaft is connected with one side of the sun gear, the other side of the sun gear is meshed with the large planetary gear, the small planetary gear is coaxially fixed with the small planetary gear in a fastening mode through an inner and outer tooth, the small planetary gear is meshed with the satellite gear, the inner side of the planetary gear is provided with a needle roller and is arranged on an outer ring of the pin shaft, two sides of the pin shaft are provided with the fixing frame, one side of the fixing frame is abutted to the large planetary gear, the other side of the fixing frame is provided with the fourth bearing, the bearing is arranged between the outer side of the sun gear peripheral fixing sleeve and the support, the bearing five is arranged between the outer side of the input shaft peripheral fixing sleeve and the box, one side of the bearing five is provided with the baffle plate, one side of the box is connected with one side of the sun gear through the second screw, the bearing seat and the other side of the bearing is respectively meshed with the motor, and the small planetary gear is connected with the small planetary gear through the outer shaft and the outer side of the bearing flange.

The bearing IV is arranged on a fixing frame in the box body.

The baffle is arranged on the fixed sleeve at the periphery of the input shaft.

The oil blanket sets up in the outside of bearing two.

The gear ring and the box body are of an integrated structure.

The diameter of the satellite wheel is smaller than that of the big satellite wheel.

The number of the large planet gears is 2-8.

Compared with the prior art, the utility model has the following beneficial effects:

the two ends of the pin shaft of the satellite wheel are fixed, the reliability and the strength of the structure are improved, the output end is a flange surface, the input end is a shaft hole, and the satellite wheel can be directly connected with a motor without adding a mounting plate.

The front seat and the gear ring are integrated, so that the number of parts is reduced, the structural strength is increased, and meanwhile, the two groups of bearings are arranged on the input shaft and the sun gear, so that the transmission length is reduced, the vibration is reduced, and the transmission structure is simplified.

Drawings

FIG. 1 is a schematic cross-sectional view of an overall device of the present utility model.

Fig. 2 is a schematic view of a driving wheel according to the present utility model.

Reference numerals illustrate:

1 is a chassis, 2 is an input shaft, 3 is a bearing seat, 4 is an oil seal, 5 is a bracket, 6 is a small planetary gear, 7 is a large planetary gear, 8 is a needle roller, 9 is a satellite wheel, 10 is a pin shaft, 11 is a screw I, 12 is a screw II, 13 is a bearing I, 14 is a bearing II, 15 is a bearing III, 16 is a bearing IV, 17 is a bearing V, 18 is a sun gear, 19 is a baffle, 20 is a gear ring, and 21 is a fixing frame.

Description of the embodiments

The utility model will now be further described with reference to the accompanying drawings.

Referring to fig. 1-2, the utility model provides a novel compound planetary reduction gear, which comprises a case 1, an input shaft 2, an output end, a bearing seat 3, an oil seal 4, a support 5, a small planetary gear 6, a large planetary gear 7, a needle roller 8, a satellite gear 9, a pin shaft 10, a screw one 11, a screw two 12, a bearing one 13, a bearing two 14, a bearing three 15, a bearing four 16, a bearing five 17, a sun gear 18, a baffle 19, a gear ring 20 and a fixed frame 21, wherein the center of a case 1 is provided with the input shaft 2, the inner side of the input shaft 2 is connected with one side of the sun gear 18, the other side of the sun gear 18 is meshed with the large planetary gear 7, the small planetary gear 6 is coaxially fixed with the small planetary gear 6 in a manner of an inner and outer tooth clamping manner, the small planetary gear 9 is meshed with the gear 9, the satellite gear 9 is meshed with the gear ring 20, the inner side of the satellite gear 9 is provided with the needle roller 8 and is arranged on the outer ring of the pin shaft 10, two sides of the pin shaft 10 are provided with the fixed frames 21, one side of the fixed frame 21 is abutted to the large bearing four 16, the other side of the fixed frame 21 is provided with the bearing four 16, a space between the outer side of the sun gear 18 and the support 5 is provided with the outer side of the fixed sleeve 13, the outer side of the bearing 2 and the support 5 is provided with the bearing housing 2, the outer side of the fixed sleeve 2 is connected with the bearing housing 1, the outer side of the bearing housing 1 is provided with the bearing housing 3, the outer side of the bearing housing 3 is connected with the outer flange 2 and the outer side of the bearing 3 is connected with the bearing housing 5, and the outer flange is provided with the outer flange 4.

The fourth bearing 16 is arranged on a fixing frame 21 inside the box body 1.

The baffle 19 is arranged on the peripheral fixed sleeve of the input shaft 2.

The oil seal 4 is provided outside the second bearing 14.

The ring gear 20 is of unitary construction with the housing 1.

The diameter of the satellite wheel 9 is smaller than the diameter of the large planetary wheel 7.

The number of the large planet gears 7 is 2-8.

Working principle:

the utility model relates to a two-stage compound gear reduction device, which is characterized in that excessive debugging is not needed when the device is used, an input wheel and an input shaft 2 are integrally designed, a large planetary wheel 7 and a small planetary wheel 6 are fixed in a buckling manner through inner and outer teeth, wherein the inner teeth of the large planetary wheel 7 and the outer teeth of the small planetary wheel 6 are firmly connected, when the large planetary wheel 7 is processed, the inner teeth are limited by a tool and a positioner, the position relationship between the inner teeth and the outer teeth of each group of large planetary wheel 7 is ensured to be consistent, the input wheel is meshed with the large planetary wheel 7 after force is applied, the small planetary wheel 6 is driven to rotate together, the small planetary wheel 6 is meshed with a satellite wheel 9, the satellite wheel 9 is driven to rotate, the force is transmitted to a gear ring 20 by meshing the satellite wheel 9 with the gear ring 20, and the gear ring 20 is fixedly connected with a box body 1, and the output shaft is stressed to output torque outwards.

During installation, the oil seal 4 and the second bearing 14 are respectively arranged in holes of the bearing seat 3, the needle roller 8 is arranged in holes of the satellite wheel 9, the needle roller 8 is arranged at the position where the pin shaft 10 is arranged on the support 5, the pin shaft 10 passes through the satellite wheel 9 and is pressed into the holes of the support 5, a third bearing 15 is arranged in the holes at the adjacent positions, the large planet wheel 7 is arranged at the position to be installed, the small planet wheel 6 passes through the inner gear hole of the large planet wheel 7 from the outer side along the holes where the third bearing 15 is arranged, the small planet wheel 6 is arranged on the third bearing 15, 1 third bearing 15 is arranged in the outer side holes, the small planet wheel is fixed by the first screw 11, and then the second bearing 14, the fourth bearing 16 and the baffle 19 are respectively arranged. Then, a proper amount of lubricating grease is firstly smeared, the assembled bearing seat 3 and the output shaft are assembled together, the machine case 1 is assembled, and the machine case is tightly screwed and fixed by the screw II 12. The bearing five 17 is installed in the case 1, and finally the pressed sun gear 18 and the input shaft 2 are installed in the case 1 together.

The above is only a preferred embodiment of the present utility model, only for helping to understand the method and the core idea of the present application, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

The utility model integrally solves the problems that in the prior art, the speed reducer needs a mounting plate when being connected with a motor, the number of parts is more, the reliability and the strength of the structure are affected, the transmission length is longer, vibration and the like are caused, and by increasing the fixing mechanism of the satellite wheel, the mounting plate is not needed to be increased, the number of parts is less, the structural strength is increased, and the vibration condition during use is reduced.

Claims (7)

1. The novel compound planetary reduction gear is characterized by comprising a chassis (1), an input shaft (2), an output end, a bearing seat (3), an oil seal (4), a support (5), a small planet wheel (6), a large planet wheel (7), a needle roller (8), a satellite wheel (9), a pin shaft (10), a screw I (11), a screw II (12), a bearing I (13), a bearing II (14), a bearing III (15), a bearing IV (16), a bearing V (17), a sun wheel (18), a baffle plate (19), a gear ring (20) and a fixing frame (21), wherein the center of the chassis (1) is provided with the input shaft (2), the inner side of the input shaft (2) is connected with one side of the sun wheel (18), the other side of the sun wheel (18) is meshed with the large planet wheel (7), the small planet wheel (6) is coaxially fixed with the small planet wheel (9) in an internal and external tooth buckling manner, the satellite wheel (9) is meshed with the gear ring (20), the needle roller (8) is provided with the fixing frame (10) on two sides of the pin shaft (10), one side of mount (21) is supported near big planet wheel (7), the opposite side of mount (21) is provided with four (16) of bearing, the outside of sun gear (18) peripheral fixed cover with be provided with between support (5) bearing one (13), the outside of input shaft (2) peripheral fixed cover with be provided with between quick-witted case (1) bearing five (17), one side of bearing five (17) is provided with separation blade (19), one side of machine case (1) is connected with through screw two (12) bearing frame (3), be provided with between bearing frame (3) with between support (5) respectively bearing two (14) with oil blanket (4), the both sides of little planet wheel (6) are provided with bearing three (15), bearing three (15) are through screw one (11) with support (5) are fixed, input shaft (2) are the shaft hole and are with outside motor direct connection, the output is the flange face.

2. The novel compound planetary reduction device according to claim 1, characterized in that the bearing four (16) is arranged on the fixing frame (21) inside the chassis (1).

3. The novel compound planetary reduction device according to claim 1, wherein the baffle plate (19) is arranged on a peripheral fixed sleeve of the input shaft (2).

4. The novel compound planetary reduction device according to claim 1, wherein the oil seal (4) is provided outside the second bearing (14).

5. The novel compound planetary reduction device according to claim 1, characterized in that the ring gear (20) is of integral structure with the chassis (1).

6. A novel compound planetary reduction device according to claim 1, characterized in that the diameter of the satellite wheel (9) is smaller than the diameter of the large planetary wheel (7).

7. The novel compound planetary reduction device according to claim 1, characterized in that the number of the large planetary gears (7) is 2-8 sets.