CN203847632U - Hub reduction device - Google Patents
Hub reduction device Download PDFInfo
- Publication number
- CN203847632U CN203847632U CN201420146486.5U CN201420146486U CN203847632U CN 203847632 U CN203847632 U CN 203847632U CN 201420146486 U CN201420146486 U CN 201420146486U CN 203847632 U CN203847632 U CN 203847632U
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- wheel
- frame
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Abstract
The utility model discloses a hub reduction device of an engineering machine. The hub reduction device comprises a frame, a driving motor, a primary planetary mechanism, a secondary differential mechanism, a third-stage fixed-axis gear train mechanism, a hub and a rim; the primary planetary mechanism is located at one side, facing the driving motor, of the third-stage fixed-axis gear train mechanism; the primary planetary mechanism is fixedly connected with a third-stage planet carrier; the two ends of the primary planetary mechanism are rotatably supported in an inner hole of the third-stage planet carrier and an inner hole of a front end cover by use of first bearings, respectively; the front end cover is fixed in the third-stage planet carrier; the secondary differential mechanism further comprises a secondary sun gear core shaft; one end of the secondary sun gear core shaft is fixedly connected with a primary planet carrier; the other end of the secondary sun gear core shaft is connected with a secondary sun gear through an inner hole of a third-stage sun gear; a sealing pipe is mounted on and connected to the front end cover and sleeves a spline housing; a sealing ring is arranged between the sealing pipe and the body of the driving motor. The hub reduction device is compact and reasonable in structure, and reliable in sealing.
Description
Technical field
The utility model relates to a kind of retarder, especially the wheel reductor of relevant works machinery.
Background technique
Electric power wheel self-discharging vehicle adopts electric drive system, and drive motor output high speed low torque slows down to increase through wheel reductor and turns round device, advances enough driving forces are provided to vehicle.It is arranged on the mechanical transmission of wheel rim inside, and space is very little, and the power simultaneously transmitting is very large, so that installing space is little and transmitted power is large is particularly thorny.On the other hand, wheel reductor is born the weight of whole vehicle and the centripetal force effect of Ackermann steer angle, and operating mode is comparatively severe.
Planetary gear train volume is little, velocity ratio is large, bearing capacity is high, is widely applied in electric power wheel self-discharging vehicle wheel reductor.Severe due to operating mode, ubiquity is shorter service time, and the phenomenons such as broken teeth, leakage of oil also occur frequently.
Summary of the invention
The purpose of this utility model is to provide a kind of compact structure, reasonable, seals reliable wheel-side reduction device.
The scheme that realizes above-mentioned technical purpose is: a kind of wheel-side reduction device, comprise frame, drive motor, one-level planetary mechanism, secondary differential attachment, three grades of fixed shaft gear train mechanisms, wheel hub and wheel rim, wherein drive motor is fixedly connected with frame, the output shaft of drive motor is connected with one end of spline housing, described one-level planetary mechanism comprises one-level sun gear axle, one-level sun gear, primary planet carrier, one-level planet wheel and primary annulus, described one-level sun gear axle is connected with the other end of spline housing, described one-level sun gear is fixed in one-level sun gear axle, one-level sun gear engages with the one-level planet wheel on primary planet carrier, one-level planet wheel engages with primary annulus, described secondary differential attachment comprises secondary solar gear, secondary planet frame, secondary planet wheel and secondary gear ring, described secondary solar gear, secondary planet frame, secondary planet wheel and secondary gear ring are all positioned at the side away from drive motor of three grades of fixed shaft gear train mechanisms, and be contained in by supporting cover, in the casing of case lid and back box lid composition, described secondary solar gear engages with the secondary planet wheel on secondary planet frame, secondary planet wheel engages with secondary gear ring, secondary gear ring and case lid pass through spline joint, the two ends of secondary planet frame are rotatably supported on supporting cover and back box lid by the second bearing respectively, supporting cover and back box lid are fixedly connected on respectively the two ends of case lid, case lid is fixedly connected with wheel hub, described three grades of fixed shaft gear train mechanisms comprise three grades of sun gears, third-level planetary frame, third-level planetary wheel and three grades of gear rings, the right-hand member of three grades of sun gears and secondary planet frame pass through spline joint, three grades of sun gears engage with the third-level planetary wheel on third-level planetary frame, third-level planetary wheel engages with three grades of gear rings, three grades of gear rings are made into integration or are fixedly connected with wheel hub, third-level planetary frame is made into integration or is fixedly connected with frame, wheel hub is rotatably supported on third-level planetary frame by the 3rd bearing, described wheel rim is fixedly connected with wheel hub, described one-level planetary mechanism is positioned at the side towards drive motor of three grades of fixed shaft gear train mechanisms, described primary annulus is fixedly connected with third-level planetary frame, the two ends of described primary planet carrier are rotatably supported in respectively in the endoporus of front cover and the endoporus of third-level planetary frame by clutch shaft bearing, described front cover is fixed in third-level planetary frame, described secondary differential attachment also comprises secondary solar gear axle, one end of described secondary solar gear axle is fixedly connected with primary planet carrier, the other end of secondary solar gear axle is connected with secondary solar gear through the endoporus of three grades of sun gears, on described front cover, be fitted with sealed pipe, sealed pipe is nested with the periphery at spline housing, between sealed pipe and the body of drive motor, be provided with seal ring.
The rear end of described sealed pipe is fixed on front cover, and the body end face of described drive motor has seal groove, and seal ring is contained in seal groove, and anterior extension end and the seal ring of described sealed pipe offset.
Between described wheel hub and frame, rotating sealing device is housed, rotating sealing device comprises seal ring and labyrinth seal.
Described wheel rim be connected with wheel hub by bolt.
The other end and the secondary solar gear of described secondary solar gear axle pass through spline joint.
Adopt after said structure, one-level is planetary mechanism (train), and secondary is differential attachment (train), and three grades is dead axle mechanism (train), makes full use of wheel rim inner space, improves the safety and reliability of system, extends maintenance period; The inner space compactness of whole system, particularly axial space utilization ratio is high, makes full use of the inner space of wheel rim, rational in infrastructure, and three grades of trains can increase the excursion of velocity ratio, are ensureing, under the prerequisite of safety and reliability, to increase output torque; Input is more reasonable with the sealing configuration of output, and the rotary seal of input is converted into static section sealing, effectively prevents the seepage situation under high-speed case.Compact structure, reasonable, sealing is reliable; Wheel hub and wheel rim are with bolts, and installation and removal are convenient and swift, significantly improve efficiency.
Brief description of the drawings
The embodiment who provides below in conjunction with accompanying drawing is described in further detail the utility model.
Fig. 1 is the schematic diagram of wheel-side reduction device of the present utility model;
Fig. 2 is the train schematic diagram of wheel-side reduction device of the present utility model.
Embodiment
As shown in Figure 1, a kind of wheel-side reduction device of the present utility model, comprise frame 1, drive motor 2, one-level planetary mechanism 32, secondary differential attachment 24, three grades of fixed shaft gear train mechanisms 28, wheel hub 15 and wheel rim 3, 3 ', wherein drive motor 2 is fixedly connected with frame 1, the output shaft 36 of drive motor is connected with one end of spline housing 34, described one-level planetary mechanism 32 comprises one-level sun gear axle 26, one-level sun gear 33, primary planet carrier 30, one-level planet wheel 9 and primary annulus 10, described one-level sun gear axle 26 is connected with the other end of spline housing 34, described one-level sun gear 33 is fixed in one-level sun gear axle 26, one-level sun gear 33 engages with the one-level planet wheel 9 on primary planet carrier 30, one-level planet wheel 9 engages with primary annulus 10, described secondary differential attachment 24 comprises secondary solar gear 22, secondary planet frame 17, secondary planet wheel 23 and secondary gear ring 19, described secondary solar gear 22, secondary planet frame 17, secondary planet wheel 23 and secondary gear ring 19 are all positioned at the side away from drive motor 2 of three grades of fixed shaft gear train mechanisms 28, and be contained in by supporting cover 25, in the casing 16 that case lid 18 and back box lid 20 form, described secondary solar gear 22 engages with the secondary planet wheel 23 on secondary planet frame 17, secondary planet wheel 23 engages with secondary gear ring 19, secondary gear ring 19 passes through spline joint with case lid 18, the two ends of secondary planet frame 17 are respectively by the second bearing 21, 21 ' is rotatably supported on supporting cover 25 and back box lid 20, supporting cover 25 and back box lid 20 are fixedly connected on respectively the two ends of case lid 18, case lid 18 is fixedly connected with wheel hub 15, described three grades of fixed shaft gear train mechanisms 28 comprise three grades of sun gears 27, third-level planetary frame 12, third-level planetary wheel 13 and three grades of gear rings 14, the right-hand member of three grades of sun gears 27 and secondary planet frame 17 pass through spline joint, three grades of sun gears 27 engage with the third-level planetary wheel 13 on third-level planetary frame 12, third-level planetary wheel 13 engages with three grades of gear rings 14, three grades of gear rings 14 are made into integration or are fixedly connected with wheel hub 15, third-level planetary frame 12 is made into integration or is fixedly connected with frame 1, wheel hub 15 is by the 3rd bearing 8, 8 ' is rotatably supported on third-level planetary frame 12, described wheel rim 3, 3 ' is fixedly connected with wheel hub 15, described one-level planetary mechanism 32 is positioned at the side towards drive motor 2 of three grades of fixed shaft gear train mechanisms 28, described primary annulus 10 is fixedly connected with third-level planetary frame 12, the two ends of described primary planet carrier 30 are by clutch shaft bearing 7, 7 ' is rotatably supported in respectively in the endoporus of front cover 11 and the endoporus of third-level planetary frame 12, described front cover 11 is fixed in third-level planetary frame 12, described secondary differential attachment 24 also comprises secondary solar gear axle 29, one end of described secondary solar gear axle 29 is fixedly connected with primary planet carrier 30, the other end of secondary solar gear axle 29 is connected with secondary solar gear 22 through the endoporus of three grades of sun gears 27, on described front cover 11, be fitted with sealed pipe 35, sealed pipe 35 is nested with the periphery at spline housing 34, between the body of sealed pipe 35 and drive motor 2, be provided with seal ring 37.
As shown in Figure 1, the rear end of described sealed pipe 35 is fixed on front cover 11, and the body end face of described drive motor 2 has seal groove 38, and seal ring 37 is contained in seal groove 38, and the anterior extension end of described sealed pipe 35 and seal ring 37 offset.
As shown in Figure 1, between described wheel hub 15 and frame 1, rotating sealing device 4 is housed, rotating sealing device 4 comprises seal ring 6 and labyrinth seal 5.
As shown in Figure 1, described wheel rim 3,3 ' be connected with wheel hub 15 by bolt 31.
As shown in Figure 1, the other end of described secondary solar gear axle 29 and secondary solar gear 22 pass through spline joint.
The transfer principle of three grades of trains of the present utility model as shown in Figure 2, the input that one-level sun gear S1 is this train, primary annulus R1 fixes, primary planet carrier C1 exports secondary solar gear S2 to, secondary gear ring R2 and planet carrier C2 export jointly, and secondary gear ring R2 is connected output with three grades of gear ring R3, and planet carrier C2 exports three grades of sun gear S3 to, third-level planetary frame is fixed, three grades of gear ring outputs.
Claims (5)
1. a wheel-side reduction device, comprise frame (1), drive motor (2), one-level planetary mechanism (32), secondary differential attachment (24), three grades of fixed shaft gear train mechanisms (28), wheel hub (15) and wheel rim (3, 3 '), wherein drive motor (2) is fixedly connected with frame (1), the output shaft (36) of drive motor is connected with one end of spline housing (34), described one-level planetary mechanism (32) comprises one-level sun gear axle (26), one-level sun gear (33), primary planet carrier (30), one-level planet wheel (9) and primary annulus (10), described one-level sun gear axle (26) is connected with the other end of spline housing (34), described one-level sun gear (33) is fixed in one-level sun gear axle (26), one-level sun gear (33) engages with the one-level planet wheel (9) on primary planet carrier (30), one-level planet wheel (9) engages with primary annulus (10), described secondary differential attachment (24) comprises secondary solar gear (22), secondary planet frame (17), secondary planet wheel (23) and secondary gear ring (19), described secondary solar gear (22), secondary planet frame (17), secondary planet wheel (23) and secondary gear ring (19) are all positioned at the side away from drive motor (2) of three grades of fixed shaft gear train mechanisms (28), and be contained in by supporting cover (25), in the casing (16) of case lid (18) and back box lid (20) composition, described secondary solar gear (22) engages with the secondary planet wheel (23) on secondary planet frame (17), secondary planet wheel (23) engages with secondary gear ring (19), secondary gear ring (19) passes through spline joint with case lid (18), the two ends of secondary planet frame (17) are respectively by the second bearing (21, 21 ') be rotatably supported on supporting cover (25) and back box lid (20), supporting cover (25) and back box lid (20) are fixedly connected on respectively the two ends of case lid (18), case lid (18) is fixedly connected with wheel hub (15), described three grades of fixed shaft gear train mechanisms (28) comprise three grades of sun gears (27), third-level planetary frame (12), third-level planetary wheel (13) and three grades of gear rings (14), the right-hand member of three grades of sun gears (27) and secondary planet frame (17) pass through spline joint, three grades of sun gears (27) engage with the third-level planetary wheel (13) on third-level planetary frame (12), third-level planetary wheel (13) engages with three grades of gear rings (14), three grades of gear rings (14) are made into integration or are fixedly connected with wheel hub (15), third-level planetary frame (12) is made into integration or is fixedly connected with frame (1), wheel hub (15) is by the 3rd bearing (8, 8 ') be rotatably supported on third-level planetary frame (12), described wheel rim (3, 3 ') be fixedly connected with wheel hub (15), it is characterized in that:
A, described one-level planetary mechanism (32) are positioned at the side towards drive motor (2) of three grades of fixed shaft gear train mechanisms (28),
B, described primary annulus (10) are fixedly connected with third-level planetary frame (12), and the two ends of described primary planet carrier (30) are rotatably supported in respectively in the endoporus of front cover (11) and the endoporus of third-level planetary frame (12) by clutch shaft bearing (7,7 '),
C, described front cover (11) are fixed in third-level planetary frame (12),
D, described secondary differential attachment (24) also comprise secondary solar gear axle (29), one end of described secondary solar gear axle (29) is fixedly connected with primary planet carrier (30), the other end of secondary solar gear axle (29) is connected with secondary solar gear (22) through the endoporus of three grades of sun gears (27)
On e, described front cover (11), be fitted with sealed pipe (35), sealed pipe (35) is nested with in the periphery of spline housing (34), between sealed pipe (35) and the body of drive motor (2), is provided with seal ring (37).
2. wheel-side reduction device according to claim 1, it is characterized in that: the rear end of described sealed pipe (35) is fixed on front cover (11), the body end face of described drive motor (2) has seal groove (38), seal ring (37) is contained in seal groove (38), and the anterior extension end of described sealed pipe (35) and seal ring (37) offset.
3. wheel-side reduction device according to claim 1, is characterized in that: between described wheel hub (15) and frame (1), rotating sealing device (4) is housed, rotating sealing device (4) comprises seal ring (6) and labyrinth seal (5).
4. wheel-side reduction device according to claim 1, is characterized in that: described wheel rim (3,3 ') be connected with wheel hub (15) by bolt (31).
5. wheel-side reduction device according to claim 1, is characterized in that: the other end of described secondary solar gear axle (29) and secondary solar gear (22) pass through spline joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420146486.5U CN203847632U (en) | 2014-03-28 | 2014-03-28 | Hub reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420146486.5U CN203847632U (en) | 2014-03-28 | 2014-03-28 | Hub reduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847632U true CN203847632U (en) | 2014-09-24 |
Family
ID=51560654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420146486.5U Withdrawn - After Issue CN203847632U (en) | 2014-03-28 | 2014-03-28 | Hub reduction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203847632U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912636A (en) * | 2014-03-28 | 2014-07-09 | 南车戚墅堰机车车辆工艺研究所有限公司 | Hub reduction gear |
| CN106809225A (en) * | 2016-09-21 | 2017-06-09 | 比亚迪股份有限公司 | Power assembly, straddle-type track train and traffic system |
| CN107070079A (en) * | 2017-03-24 | 2017-08-18 | 深圳兴和瑜创新科技有限公司 | The disconnecting prevention structure of wing-rooms on either side of a one-story house automobile tail gate automatic lifting reducing motor |
-
2014
- 2014-03-28 CN CN201420146486.5U patent/CN203847632U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912636A (en) * | 2014-03-28 | 2014-07-09 | 南车戚墅堰机车车辆工艺研究所有限公司 | Hub reduction gear |
| CN106809225A (en) * | 2016-09-21 | 2017-06-09 | 比亚迪股份有限公司 | Power assembly, straddle-type track train and traffic system |
| CN107070079A (en) * | 2017-03-24 | 2017-08-18 | 深圳兴和瑜创新科技有限公司 | The disconnecting prevention structure of wing-rooms on either side of a one-story house automobile tail gate automatic lifting reducing motor |
| CN107070079B (en) * | 2017-03-24 | 2023-04-07 | 深圳兴和瑜创新科技有限公司 | Anti-disengaging structure of automatic lifting speed reduction motor of hatchback car tail door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140924 Effective date of abandoning: 20160427 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |