CN204153090U - Gear transmission shaft device - Google Patents

Gear transmission shaft device Download PDF

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Publication number
CN204153090U
CN204153090U CN201420600853.4U CN201420600853U CN204153090U CN 204153090 U CN204153090 U CN 204153090U CN 201420600853 U CN201420600853 U CN 201420600853U CN 204153090 U CN204153090 U CN 204153090U
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CN
China
Prior art keywords
roller bearing
ring
tapered roller
casing
transmission shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201420600853.4U
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Chinese (zh)
Inventor
葛玉柱
雷雪梅
杨子文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Nanfang Aviation High Precision Transmission Co., Ltd.
Original Assignee
ZHUZHOU GAOJING TRANSMISSION TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZHUZHOU GAOJING TRANSMISSION TECHNOLOGY Co Ltd filed Critical ZHUZHOU GAOJING TRANSMISSION TECHNOLOGY Co Ltd
Priority to CN201420600853.4U priority Critical patent/CN204153090U/en
Application granted granted Critical
Publication of CN204153090U publication Critical patent/CN204153090U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of gear transmission shaft device, comprise casing and be arranged on the gearing shaft in casing, its main points are: gearing shaft is made up of gear, macro-axis and little axle, its transmission shaft is provided with successively roller bearing, spacer sleeve, tapered roller bearing A, spacer ring and tapered roller bearing B, and is fixed tightly on transmission shaft by locking nut; The bulge loop of the inner chamber of casing is provided with the spring cavity of mounting spring and is provided with the circumferential groove in its end portion of back-up ring.Structure of the present utility model is simple, manufacture assembling is easy, roller bearing is adopted to add the support of back-to-back two tapered roller bearings, make gear transmission shaft device at high speed, large radial force and axial force can be born, and make gear transmission have good meshing characteristic, improve transmission efficiency and the working life of gearing shaft, reduce the use and maintenance cost of gear transmission shaft device, reliability and good economy performance.

Description

Gear transmission shaft device
Technical field
The utility model relates to a kind of driveline, is specifically related to a kind of gear transmission shaft device.
Background technique
Adopt the gear drive of rolling bearing, requiring that rolling bearing life is long, running speed is high, it is little to take up room, be convenient to install, also will bear large axial force and large radial force when running up.The rolling bearing arrangement of conventional Support Gear transmission shaft has: adopts two back-to-back or the support of aspectant tapered roller bearing, can not meet bearing working life and high-revolving requirement simultaneously; Next is employing two aspectant tapered roller bearings when adding a roller bearing, and take up room large, it is little that gearing shaft supports span, is unfavorable for meshed transmission gear; Be thirdly the supporting way that employing two roller bearings add a four-point contact ball, meet high rotation speed requirements, but bearing life do not reach requirement.
Summary of the invention
The purpose of this utility model is the shortcoming that will overcome above-mentioned technology, provide a kind of structure simple, rationally distributed, take up room little, the gear transmission shaft device that allowable rotating speed is high, the life-span is long.
Gear transmission shaft device of the present utility model, comprises casing and is arranged on the gearing shaft in casing, it is characterized in that: be provided with the first inner chamber and the second inner chamber in described casing; Described gearing shaft is made up of gear, macro-axis and little axle; Described gearing shaft is provided with successively roller bearing, tapered roller bearing A and tapered roller bearing B; Described roller bearing is placed between roller bearing inner ring and roller bearing outer ring; Described roller bearing inner ring is enclosed within macro-axis, and the inner peripheral surface of the first inner chamber of roller bearing outer ring and casing touches; Described tapered roller bearing A is placed between tapered roller bearing A inner ring and tapered roller bearing A outer ring, tapered roller bearing A inner ring is enclosed within little axle, on tapered roller bearing A outer ring, cover has lining, has the gap of 0.01 ~ 0.05 millimeter between the inner peripheral surface of the outer circumferential face of lining and the first inner chamber of casing; Described tapered roller bearing B is placed between tapered roller bearing B inner ring and tapered roller bearing B outer ring, and tapered roller bearing B inner ring is enclosed within little axle, and the inner peripheral surface of the second inner chamber of tapered roller bearing B outer ring and casing touches; Described roller bearing, tapered roller bearing A and tapered roller bearing B are fixed tightly on gearing shaft by locking nut.
In order to better realize above-mentioned purpose:
Gearing shaft between described roller bearing inner ring and tapered roller bearing A inner ring is provided with spacer sleeve.
Gearing shaft between described tapered roller bearing A inner ring and tapered roller bearing B inner ring is provided with spacer ring.
Described lining is connected and composed by annulus section in annulus section and second in first, and in first, the internal diameter of annulus section is greater than the internal diameter of annulus section in second.
Bulge loop between first inner chamber of described casing and the second inner chamber is provided with spring cavity, is placed with spring in spring cavity, and both ends of the spring touches with the bottom surface of tapered roller bearing A outer ring and spring cavity respectively;
The right side of the internal surface Correspondent cy linder roller bearing outer ring of described casing is provided with circumferential groove in its end portion, is provided with back-up ring in circumferential groove in its end portion, and back-up ring, near the right side of roller bearing outer ring, prevents roller bearing from sliding axially.
Described tapered roller bearing A and tapered roller bearing B is for install back-to-back.
Gear transmission shaft device of the present utility model, structure is simple, manufacture assembling is easy, roller bearing is adopted to add the supporting structure of back-to-back two tapered roller bearings, make gear transmission shaft device at high speed, large radial force and axial force can be born, and make gear transmission have good meshing characteristic, improve gear-driven efficiency and gear transmission shaft device working life, reduce the use and maintenance cost of gear transmission shaft device, reliability and good economy performance.
Figure of description
Fig. 1 is topology view of the present utility model.
Fig. 2 is the structural representation of lining.
Fig. 3 is the structural representation of casing.
Fig. 4 is the structural representation of gearing shaft.
In figure: 1, gearing shaft, 2, casing, 3, roller bearing, 31, roller bearing inner ring, 32, roller bearing outer ring, 4, back-up ring, 44, circumferential groove in its end portion, 5, spacer sleeve, 6, lining, 7, tapered roller bearing A, 71, tapered roller bearing A inner ring, 72, tapered roller bearing A outer ring, 8, tapered roller bearing B, 81, tapered roller bearing B inner ring, 82, tapered roller bearing B outer ring, 9, spring, 99, spring cavity, 10, spacer ring, 11, lock washer, 12, locking nut, 13, front-end face, 14, ear end face, 15, annulus section in first, 16, annulus section in second, 17, first interior edge face, 18, second interior edge face, 19, first inner chamber, 20, second inner chamber, 21, gear, 22, macro-axis, 23, little axle, 24, bulge loop.
Embodiment
Gear transmission shaft device of the present utility model, the gearing shaft 1 comprising casing 2 and be arranged in casing 2.Casing 2 is made up of the first inner chamber 19 and the second inner chamber 20.Gearing shaft 1 is integrally formed by gear 21, macro-axis 22 and little axle 23.Gearing shaft 1 is provided with successively roller bearing 3, tapered roller bearing A7 and tapered roller bearing B8.Roller bearing 3 is placed between roller bearing inner ring 31 and roller bearing outer ring 32.Roller bearing inner ring 31 is enclosed within macro-axis 22, and roller bearing outer ring 32 touches with the inner peripheral surface of the first inner chamber 19 of casing 2.Tapered roller bearing A7 is placed between tapered roller bearing A inner ring 71 and tapered roller bearing A outer ring 72, tapered roller bearing A inner ring 71 is enclosed within little axle 23, on tapered roller bearing A outer ring 72, cover has lining 6, has the gap of 0.03 millimeter between the inner peripheral surface of the outer circumferential face of lining 6 and the first inner chamber 19 of casing 2.Tapered roller bearing B7 is placed between tapered roller bearing B inner ring 71 and tapered roller bearing B outer ring 72, and tapered roller bearing B inner ring 71 is enclosed within little axle 23, and tapered roller bearing B outer ring 72 touches with the inner peripheral surface of the second inner chamber 20 of casing 2.Roller bearing 3, tapered roller bearing A7 and tapered roller bearing B8 are fixed tightly on gearing shaft 1 by locking nut 12.
Gearing shaft 1 between roller bearing inner ring 31 and tapered roller bearing A inner ring 71 is provided with spacer sleeve 5.
Gearing shaft 1 between tapered roller bearing A inner ring 71 and tapered roller bearing B inner ring 72 is provided with spacer ring 10.
Lining 6 is connected and composed by annulus section 16 in annulus section in first 15 and second, and in first, the internal diameter of annulus section 15 is greater than the internal diameter of annulus section 16 in second.
Bulge loop 24 between first inner chamber 19 of casing 2 and the second inner chamber 20 is provided with spring cavity 99, is placed with spring 9 in spring cavity 99, and spring 9 two ends touch with the bottom surface of tapered roller bearing A outer ring 72 and spring cavity 99 respectively.
The right side of the internal surface Correspondent cy linder roller bearing outer ring 32 of casing 2 is provided with circumferential groove in its end portion 44, is provided with back-up ring 4 in circumferential groove in its end portion 44, and back-up ring 4, near the right side of roller bearing outer ring 32, prevents roller bearing 3 from sliding axially.
Tapered roller bearing A7 and tapered roller bearing B8 adopts and installs back-to-back.

Claims (7)

1. a gear transmission shaft device, comprises casing (2) and is arranged on the gearing shaft (1) in casing (2), it is characterized in that: be provided with the first inner chamber (19) and the second inner chamber (20) in described casing (2); Described gearing shaft (1) is made up of gear (21), macro-axis (22) and little axle (23); Described gearing shaft (1) is provided with roller bearing (3), tapered roller bearing A(7 successively) and tapered roller bearing B(8); Described roller bearing (3) is placed between roller bearing inner ring (31) and roller bearing outer ring (32); Described roller bearing inner ring (31) is enclosed within macro-axis (22), and roller bearing outer ring (32) touch with the inner peripheral surface of first inner chamber (19) of casing (2); Described tapered roller bearing A(7) be placed between tapered roller bearing A inner ring (71) and tapered roller bearing A outer ring (72), tapered roller bearing A inner ring (71) is enclosed within little axle (23), the upper cover in tapered roller bearing A outer ring (72) has lining (6), has the gap of 0.01 ~ 0.05 millimeter between the inner peripheral surface of the outer circumferential face of lining (6) and first inner chamber (19) of casing (2); Described tapered roller bearing B(8) be placed between tapered roller bearing B inner ring (81) and tapered roller bearing B outer ring (82), tapered roller bearing B inner ring (81) is enclosed within little axle (23), and tapered roller bearing B outer ring (82) touches with the inner peripheral surface of second inner chamber (20) of casing (2); Described roller bearing (3), tapered roller bearing A(7) and tapered roller bearing B(8) be fixed tightly on gearing shaft (1) by locking nut (12).
2. gear transmission shaft device according to claim 1, is characterized in that: the gearing shaft (1) between described roller bearing inner ring (31) and tapered roller bearing A inner ring (71) is provided with spacer sleeve (5).
3. gear transmission shaft device according to claim 1, is characterized in that: the gearing shaft (1) between described tapered roller bearing A inner ring (71) and tapered roller bearing B inner ring (81) is provided with spacer ring (10).
4. gear transmission shaft device according to claim 1, it is characterized in that: described lining (6) is connected and composed by annulus section (16) in annulus section (15) and second in first, and in first, the internal diameter of annulus section (15) is greater than the internal diameter of annulus section (16) in second.
5. gear transmission shaft device according to claim 1, it is characterized in that: the bulge loop (24) between first inner chamber (19) of described casing (2) and the second inner chamber (20) is provided with spring cavity (99), be placed with spring (9) in spring cavity (99), spring (9) two ends touch with the bottom surface of tapered roller bearing A outer ring (71) and spring cavity (99) respectively.
6. gear transmission shaft device according to claim 1, it is characterized in that: the right side of described casing (2) internal surface Correspondent cy linder roller bearing outer ring (32) is provided with circumferential groove in its end portion (44), back-up ring (4) is installed in circumferential groove in its end portion (44), back-up ring (4), near the right side of roller bearing outer ring (32), prevents roller bearing (3) from sliding axially.
7. gear transmission shaft device according to claim 1, is characterized in that: described tapered roller bearing A(7) and tapered roller bearing B(8) for install back-to-back.
CN201420600853.4U 2014-10-17 2014-10-17 Gear transmission shaft device Active CN204153090U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420600853.4U CN204153090U (en) 2014-10-17 2014-10-17 Gear transmission shaft device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420600853.4U CN204153090U (en) 2014-10-17 2014-10-17 Gear transmission shaft device

Publications (1)

Publication Number Publication Date
CN204153090U true CN204153090U (en) 2015-02-11

Family

ID=52511207

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420600853.4U Active CN204153090U (en) 2014-10-17 2014-10-17 Gear transmission shaft device

Country Status (1)

Country Link
CN (1) CN204153090U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104315111A (en) * 2014-10-17 2015-01-28 株洲高精传动技术有限公司 Gear transmission shaft device
CN105299198A (en) * 2015-11-30 2016-02-03 李功文 Transmission gearbox structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104315111A (en) * 2014-10-17 2015-01-28 株洲高精传动技术有限公司 Gear transmission shaft device
CN105299198A (en) * 2015-11-30 2016-02-03 李功文 Transmission gearbox structure

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20151028

Address after: Dong Jia Duan high-tech park in Hunan province 412002 Zhuzhou city Lusong District

Patentee after: Hunan Nanfang Aviation High Precision Transmission Co., Ltd.

Address before: Dong Jia Duan High-tech Industrial Park in Hunan province Zhuzhou city Lusong District 412000

Patentee before: Zhuzhou Gaojing Transmission Technology Co., Ltd.