CN210830383U

CN210830383U - High-precision helical-tooth planetary reducer

Info

Publication number: CN210830383U
Application number: CN201921882817.0U
Authority: CN
Inventors: 彭维辉
Original assignee: Zhejiang Saiya Intelligent Transmission Technology Co ltd
Current assignee: Zhejiang Saiya Intelligent Transmission Technology Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-06-23
Anticipated expiration: 2029-11-04

Abstract

The utility model discloses a high accuracy skewed tooth type planetary reducer belongs to planetary reducer technical field, including front end housing, internal gear, rear end cap, its characterized in that: the rear end cap inboard sets up the shaft coupling, the nearly front end cap one end of shaft coupling sets up the sun gear, the front end cap inboard sets up the output shaft, the nearly rear end cap one end of output shaft sets up the gear box, the gear box surface sets up the opening, the inside 3 planet wheels that set up of gear box, the sun gear is connected with the planet wheel meshing, the planet wheel passes the opening and is connected with the internal gear meshing, set up first bearing between shaft coupling and the rear end cap, the nearly rear end cap one end outside of gear box sets up the second bearing, set up the third bearing between output shaft and the front end cap, the planet wheel inboard sets up the planet wheel axle, planet wheel axle both ends respectively with gear box both sides board swing joint, compare with traditional skewed tooth type planetary reducer, the utility model discloses.

Description

High-precision helical-tooth planetary reducer

Technical Field

The utility model relates to a planetary reducer technical field specifically is a high accuracy skewed tooth type planetary reducer.

Background

The planetary reducer is an industrial product with wide application, designers can meet the use requirements of most scenes by designing technical parameters of an internal structure with different specifications, the planetary reducer can be divided into a straight tooth type and an inclined tooth type according to tooth shape division, the straight tooth type and the inclined tooth type have different characteristics, the inclined tooth type planetary reducer is widely applied to certain specific occasions due to the characteristics of large torque, low noise, stable transmission and the like, compared with the large torque of the inclined tooth type planetary reducer, the internal structure of the inclined tooth type planetary reducer, such as a planetary wheel shaft and an output shaft, has higher torsional rigidity, but most of the existing inclined tooth type planetary reducers cannot meet the requirement, so the existing inclined tooth type planetary reducers are frequently damaged, in addition, the existing inclined tooth type planetary reducers have poor sealing performance, the condition of internal lubricating grease leakage often occurs, and the cleaning is difficult, also make inner structure can't realize sufficient lubrication, lead to the transmission precision to reduce, take place serious wearing and tearing even, shorten life, to the user, not only can not realize predetermined working effect, also can increase the cost, based on this, provide a intensity is higher, sealed better, the higher skewed tooth type planetary reducer of precision, become more and more important.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a high accuracy skewed tooth type planetary reducer.

The utility model provides a high accuracy skewed tooth type planetary reducer, includes front end housing, internal gear, rear end cap, its characterized in that: the inner side of the rear end cover is provided with a coupler, one end of the front end cover, which is close to the coupler, is provided with a sun wheel, the inner side of the front end cover is provided with an output shaft, one end of the output shaft, which is close to the rear end cover, is provided with a gear box, the surface of the gear box is provided with an opening, 3 planet wheels are arranged in the gear box, the sun wheel is meshed with the planet wheels, and the planet wheels penetrate through the opening and are meshed with the inner.

Furthermore, a first bearing is arranged between the coupler and the rear end cover, a second bearing is arranged on the outer side of one end, close to the rear end cover, of the gear box, and a third bearing is arranged between the output shaft and the front end cover.

Furthermore, a first C-shaped sealing ring is arranged on one side, far away from the output shaft, of the first bearing, and a second C-shaped sealing ring is arranged on one side, close to the output shaft, of the first bearing.

Furthermore, a first lip type sealing ring is arranged between the output shaft and the front end cover, a second lip type sealing ring is arranged between the coupler and the rear end cover, the first lip type sealing ring is located far away from the third bearing on one side of the rear end cover, and the second lip type sealing ring is located far away from the second bearing on one side of the front end cover.

Furthermore, a planet wheel shaft is arranged on the inner side of the planet wheel, and two ends of the planet wheel shaft are respectively movably connected with two side plates of the gear box.

Furthermore, the shaft coupling is far away front end housing one end is that centrosymmetric sets up 2 locking pieces, 2 the locking piece is through 2 bolt lock joint.

Furthermore, the rear end cover is fixedly connected with the internal gear in the axial direction through a second screw rod, and the internal gear is fixedly connected with the front end cover in the axial direction through a first screw rod.

Further, the number of the first screws is 6, and the number of the second screws is 6.

The utility model discloses a high accuracy skewed tooth type planetary reducer's beneficial effect does:

1. the second bearing and the third bearing realize large-span double-bearing support of the output shaft, the two side plates of the gear box realize double support of the planet wheel shaft, and the first bearing stably supports the coupler, so that the torsional rigidity of the output shaft and the planet wheel shaft is effectively increased, the integral strength of the planetary reducer is obviously improved, and the service life of the planetary reducer is obviously prolonged;

2. the first lip type sealing ring and the second lip type sealing ring realize effective sealing of the cavity part between the front end cover and the inner gear, the first C-shaped sealing ring and the second C-shaped sealing ring realize effective sealing of the cavity part between the inner gear and the rear end cover, the sealing effect is obviously improved, the leakage of lubricating grease is effectively prevented, the internal structure is fully lubricated all the time, the service life is further prolonged, and meanwhile, the transmission precision is obviously improved;

3. the first screw and the second screw realize axial locking of the front end cover, the internal gear and the rear end cover, ensure the coaxiality of the assembly of the front end cover, the internal gear and the rear end cover, and combine the first bearing, the second bearing and the third bearing to stably support the structure, so that the stability of the planetary reducer is obviously improved, and the transmission precision is further improved.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, but the protection scope of the present invention is not limited thereto.

Fig. 1 is a schematic view of an external structure of a high-precision helical-tooth planetary reducer according to the present invention;

fig. 2 is a schematic sectional view of a high-precision helical-tooth planetary reducer according to the present invention;

fig. 3 is a side view of the inside of a high-precision helical-tooth planetary reducer according to the present invention;

fig. 4 is the internal structure schematic diagram of the high-precision helical-tooth planetary reducer of the present invention.

The gearbox comprises an output shaft 1, a front end cover 2, an inner gear 3, a rear end cover 4, a coupler 5, a first bearing 6, a second bearing 7, a third bearing 8, a first lip type sealing ring 9, a planet wheel 10, a sun wheel 11, a second lip type sealing ring 12, a locking block 13, a bolt 14, a first C-shaped sealing ring 15, a second C-shaped sealing ring 16, a first screw 17, a second screw 18 and a gearbox 19.

Detailed Description

In order to make the description clearer, the high-precision helical-tooth planetary reducer of the present invention is further described with reference to fig. 1 to 4 of the drawings attached to the specification.

The utility model provides a high accuracy skewed tooth type planetary reducer, includes front end housing 2, internal gear 3, rear end cap 4, its characterized in that: the inner side of the rear end cover 4 is provided with a coupler 5, the coupler 5 is close to one end of the front end cover 2 is provided with a sun wheel 11, the inner side of the front end cover 2 is provided with an output shaft 1, the output shaft 1 is close to one end of the rear end cover 4 is provided with a gear box 19, the surface of the gear box 19 is provided with an opening, 3 planetary wheels 10 are arranged inside the gear box 19, the sun wheel 11 is meshed with the planetary wheels 10, and the planetary wheels 10 penetrate through the opening and are meshed with the inner gear 3.

Further, a first bearing 6 is arranged between the coupler 5 and the rear end cover 4, a second bearing 7 is arranged on the outer side of one end, close to the rear end cover 4, of the gear box 19, and a third bearing 8 is arranged between the output shaft 1 and the front end cover 2.

Furthermore, a first C-shaped sealing ring 15 is arranged on the side of the first bearing 6 far away from the output shaft 1, and a second C-shaped sealing ring 16 is arranged on the side of the first bearing 6 near the output shaft 1.

Further, the output shaft 1 with set up first lip formula sealing washer 9 between the front end housing 2, the shaft coupling 5 with set up second lip formula sealing washer 12 between the rear end housing 4, first lip formula sealing washer 9 is located the third bearing 8 is far rear end housing 4 one side, second lip formula sealing washer 12 is located the second bearing 7 is far front end housing 2 one side.

Further, a planet wheel shaft is arranged on the inner side of the planet wheel 10, and two ends of the planet wheel shaft are respectively movably connected with two side plates of the gear box 19.

Furthermore, the coupler 5 is far away from one end of the

front end cover

2, 2 locking blocks 13 are arranged at the center symmetrically, and the locking blocks 13 are connected in a locking mode through 2 bolts 14.

Further, the rear end cover 4 and the internal gear 3 are axially fixedly connected through a second screw 18, and the internal gear 3 and the front end cover 2 are axially fixedly connected through a first screw 17.

Further, the number of the first screws 17 is 6, and the number of the second screws 18 is 6.

The utility model discloses a high accuracy skewed tooth type planetary reducer's theory of operation does: the coupling 5 is connected with an input end through a locking block 13 and a bolt 14, an output shaft 1 is connected with an output end, the coupling 5 drives a sun gear 11 to rotate, the sun gear 11 drives a planet wheel 10 to rotate around a planet wheel shaft and revolve along an inner gear 3, and then the planet wheel shaft drives a gear box 19 and the output shaft 1 to rotate to complete speed reduction, in the process, a first screw 17 and a second screw 18 ensure the coaxiality of the assembly of a front end cover 2, the inner gear 3 and a rear end cover 4, a first bearing 6, a second bearing 7 and a third bearing 8 ensure the coaxiality among the coupling 5, the sun wheel 11 and the output shaft 1, meanwhile, the second bearing 7 and the third bearing 8 support the output shaft 1 in a large span, double support of two side plates of the gear box 19 on the planet wheel shaft is ensured, the output shaft 1 and the planet wheel shaft have enough torsional rigidity, and a first lip type sealing ring 9 and a second lip, First C type sealing washer 15, second C type sealing washer 16 have guaranteed that inside lubricating grease can not take place to leak to continuous abundant lubrication to inner structure, mechanical strength, sealed effect, transmission precision, life all obtain showing and promote.

The above is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a high accuracy skewed tooth type planetary reducer, includes front end housing (2), internal gear (3), rear end cap (4), its characterized in that: rear end housing (4) inboard sets up shaft coupling (5), shaft coupling (5) are nearly front end housing (2) one end sets up sun gear (11), front end housing (2) inboard sets up output shaft (1), output shaft (1) are nearly rear end housing (4) one end sets up gear box (19), gear box (19) surface sets up the opening, gear box (19) inside sets up 3 planet wheel (10), sun gear (11) with planet wheel (10) meshing connection, planet wheel (10) pass the opening with inner gear (3) meshing connection.

2. A high-precision helical-tooth planetary reducer according to claim 1, wherein a first bearing (6) is arranged between the coupling (5) and the rear end cover (4), a second bearing (7) is arranged on the outer side of one end of the gear box (19) close to the rear end cover (4), and a third bearing (8) is arranged between the output shaft (1) and the front end cover (2).

3. A high-precision helical planetary reducer according to claim 2, wherein the first bearing (6) is provided with a first C-shaped seal ring (15) on the side far from the output shaft (1), and the first bearing (6) is provided with a second C-shaped seal ring (16) on the side near to the output shaft (1).

4. A high-precision helical-tooth planetary reducer according to claim 2, wherein a first lip type seal ring (9) is arranged between the output shaft (1) and the front end cover (2), a second lip type seal ring (12) is arranged between the coupler (5) and the rear end cover (4), the first lip type seal ring (9) is located on the side of the third bearing (8) far away from the rear end cover (4), and the second lip type seal ring (12) is located on the side of the second bearing (7) far away from the front end cover (2).

5. A high-precision helical-tooth planetary reducer according to claim 1, wherein a planetary wheel shaft is arranged inside the planetary wheel (10), and two ends of the planetary wheel shaft are movably connected with two side plates of the gear box (19) respectively.

6. A high-precision helical-tooth planetary reducer according to claim 1, wherein 2 locking blocks (13) are arranged at one end of the coupling (5) far away from the front end cover (2) in a centrosymmetric manner, and the 2 locking blocks (13) are locked and connected through 2 bolts (14).

7. A high precision helical planetary reducer according to claim 1, wherein the rear cover (4) is axially fixedly connected with the internal gear (3) by a second screw (18), and the internal gear (3) is axially fixedly connected with the front cover (2) by a first screw (17).

8. A high-precision helical-tooth planetary reducer according to claim 7, wherein the number of the first screws (17) is 6, and the number of the second screws (18) is 6.