CN101349322B - Small inclination drive gearbox - Google Patents

Small inclination drive gearbox Download PDF

Info

Publication number
CN101349322B
CN101349322B CN2008100702121A CN200810070212A CN101349322B CN 101349322 B CN101349322 B CN 101349322B CN 2008100702121 A CN2008100702121 A CN 2008100702121A CN 200810070212 A CN200810070212 A CN 200810070212A CN 101349322 B CN101349322 B CN 101349322B
Authority
CN
China
Prior art keywords
gear
driven gear
pto
driving gear
axle sleeve
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.)
Expired - Fee Related
Application number
CN2008100702121A
Other languages
Chinese (zh)
Other versions
CN101349322A (en
Inventor
朱才朝
张磊
王海霞
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.)
Chongqing University
Original Assignee
Chongqing University
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 Chongqing University filed Critical Chongqing University
Priority to CN2008100702121A priority Critical patent/CN101349322B/en
Publication of CN101349322A publication Critical patent/CN101349322A/en
Application granted granted Critical
Publication of CN101349322B publication Critical patent/CN101349322B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
    • F16H1/203—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with non-parallel axes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)

Abstract

The invention discloses a driving gear box with a small angle of inclination, which comprises a box body, a power input shaft which is rotationally engaged with the box body, a power output shaft, a driving gear and a driven gear arranged on the power output shaft, wherein the driving gear meshes with the driven gear, an included angle is formed between the power output shaft and the power input shaft, one of the driving gear and the driven gear is a non-involute gear, the other one is an involute gear, and the tooth surface of the driving gear is the conjugation of the tooth surface of the driven gear. A gear pair of the invention can form a line meshing mode, has strong bearing capacity, low driving error, long service life, wide application range, low driving noise, simple structure and small volume.

Description

Small inclination drive gearbox
Technical field
The present invention relates to a kind of speed change gear, particularly a kind of small inclination drive gearbox.
Background technique
Gear-box is a requisite device in the mechanical transmission, distinguishes by structure mainly to be divided into the driving of parallel axes and alternating axis transmission.The gear-box that the driving of parallel axes is arranged occupies very big ratio in mechanical transmission, be maximum type of belt drive of usefulness, and it mainly is a column gear transmission; The alternating axis transmission is the space gear-driven form, comprises bevel gear drive and worm and gear transmission.These two kinds of type of belt drive have been contained gear-driven all application forms substantially.Along with the development of industrial technology, small inclination transmission the gear-driven form that a kind of two transmission shafts become a minimum angle appearred gradually, i.e. in fields such as high-speed packaging machinery, quick yacht, precision drive, robots.In the prior art, in the small inclination drive mechanism, the gear engagement pinion flank of tooth is an involute flank, so this transmission is point gearing, bearing capacity is low, and driving error is big, and working life is short, has limited the application of small inclination transmission greatly.
Therefore, need a kind of bearing capacity strong, driving error is little, long service life, the small inclination gear-box of applied range.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of small inclination drive gearbox, bearing capacity is strong, and driving error is little, long service life, and applied range, and the transmission noise is low, simple in structure, volume is little.
Small inclination drive gearbox of the present invention, comprise casing, the power input shaft and the pto that are rotatably assorted with casing, driving gear and the driven gear that is arranged on the pto, driving gear and driven gear are axial variable tooth thickness gear and are meshing with each other, form angle between pto and the power input shaft, one of driving gear and driven gear are the non-involute gear, another is an involute gear, the flank of tooth of driving gear is the conjugation of the flank of tooth of driven gear, described driven gear is arranged on the pto by axle sleeve, described axle sleeve gap engage sleeves is on pto, and driven gear is arranged on the axle sleeve in the fixing mode of axially movable circumferencial direction; Described axle sleeve inner circumference and pto excircle be respectively provided to few 1 over against the groove that launches of spiral, the cross section of described groove is semicircle, meshes at circumferencial direction by the spherical rolling element that is arranged in the groove between described axle sleeve and the pto; In the transmission process, the axial thrust load that spherical rolling element produces makes the driving gear and the driven gear that become transverse tooth thickness eliminate sideshake.
Further, described driven gear both sides are provided with the spring with pretightening force respectively;
Further, be positioned at the driven gear both sides on the described axle sleeve fixed block is set respectively, described spring housing is on axle sleeve, and an end leans against on the positioning block, and the other end presses closer driven gear;
Further, described driving gear is fixedly installed on the power input shaft at circumferencial direction;
Further, also comprise the jack shaft that is rotatably assorted with casing, described driving gear is fixedly installed on the jack shaft at circumferencial direction, fixedly install two primary drive gears at circumferencial direction on the described power input shaft, on the jack shaft circumferencial direction fixedly install two respectively with the elementary driven gear of two primary drive gears engagement;
Further, described two elementary driven gears are arranged on the both sides of driving gear.
The invention has the beneficial effects as follows: small inclination drive gearbox of the present invention, adopt the conjugate tooth profiles of involute gear and non-involute gear to mesh, form the line engagement system, bearing capacity is strong, driving error is little, long service life, applied range, and the transmission noise is low, simple in structure, volume is little.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described.
Fig. 1 is the structural profile schematic representation of the embodiment of the invention one;
Fig. 2 is the structural profile schematic representation of the embodiment of the invention two.
Embodiment
Embodiment one
Fig. 1 is the structural profile schematic representation of the embodiment of the invention one, as shown in the figure: the small inclination drive gearbox of present embodiment, comprise casing 7, the power input shaft 5 and the pto 1 that are rotatably assorted with casing 7, be fixedly installed on the driving gear 6 on the power input shaft 5 and be fixedly installed on driven gear 8 on the pto 1 at circumferencial direction at circumferencial direction, driving gear 6 and driven gear 8 engagements, form angle between pto 1 and the power input shaft 5, driving gear 6 is the non-involute gear, driven gear 8 is an involute gear, the flank of tooth of driving gear 6 is conjugation of the flank of tooth of driven gear 8, guarantees that gear pair can form the line engagement; Driving gear 6 and driven gear 8 are axial variable tooth thickness gear, can effectively eliminate the sideshake of gear engagement pair, eliminate running noises, improve transmission accuracy;
Driven gear 8 is arranged on the pto 1 by axle sleeve 3, and described axle sleeve 3 Spielpassung are enclosed within on the pto 1, and driven gear 8 is arranged on the axle sleeve 3 in the fixing mode of axially movable circumferencial direction by spline; Axle sleeve 3 inner circumferences and pto 1 excircle be provided with respectively over against the groove that launches of spiral, described groove be three uniform; The cross section of groove is semicircle, and by being arranged on spherical rolling element 2 in the groove in the circumferencial direction engagement, the rotation direction of the groove that this spiral launches is according to the difference of design input sense of rotation and difference between axle sleeve 3 and the pto 1; During for the one-level transmission, when the design of power input shaft 5 turns to being seen as from left to right when counterclockwise, driven gear 8 is for turning clockwise, and the transverse tooth thickness of driven gear 8 diminishes from right to left gradually, and this moment, groove was left-handed, thereby guarantees that spherical rolling element points to the little extreme direction (among the figure direction) left of driven gear 8 all the time to the axial thrust load of axle sleeve in the process of transmission, certainly, be seen as from left to right when clockwise when the design of power input shaft 5 turns to, other condition is constant, and then groove is dextrorotation; If it is big that the transverse tooth thickness of driven gear 8 becomes from right to left gradually, then groove is left-handed; Therefore, according to the direction of sense of rotation in the driven gear transmission process and change transverse tooth thickness, the spiral expansion direction difference of groove; In the present embodiment, spherical rolling element 2 is a steel ball, in the transmission process, because 1 pair of spherical rolling element 2 of pto axial component of reaction left, make spherical rolling element 2 drive axle sleeve 3 and produce axial displacement left, be positioned at driven gear 8 both sides on the axle sleeve 3 fixed block 9 is set respectively, fixed block 9 is the internal thread annulus in the present embodiment, be spun on the axle sleeve 3 by screw thread, spring 4 with pretightening force is enclosed within on the axle sleeve 3, one end leans against on the positioning block 9, the other end presses closer driven gear 8, axle sleeve 3 moving axially left makes positioning block 9 compress the spring 4 on the right, produces axial displacement left thereby promote driven gear 8, can make the driving gear 6 and the driven gear 8 that become transverse tooth thickness eliminate sideshakes; The axial force of 2 pairs of axle sleeves 3 of spherical rolling element disappears when quitting work, and the spring 4 on the right loosens, about under the acting in conjunction of two springs 4, driven gear 8 is return in time, avoids gear pair engagement tension, the raising transmission efficiency.
Embodiment two
Fig. 2 is the structural profile schematic representation of the embodiment of the invention two, as shown in the figure: the small inclination drive gearbox of present embodiment, comprise casing 7, the power input shaft 5 that is rotatably assorted with casing 7, jack shaft 10 and pto 1, be fixedly installed on the driving gear 6 on the jack shaft 10 and be fixedly installed on driven gear 8 on the pto 1 at circumferencial direction at circumferencial direction, driving gear 6 and driven gear 8 engagements, form angle between pto 1 and the power input shaft 5, driving gear 6 is the non-involute gear, driven gear 8 is an involute gear, the flank of tooth of driving gear 6 is conjugation of the flank of tooth of driven gear 8, guarantee that gear pair can form the line engagement, thereby the raising bearing capacity increases working life; Fixedly install two primary drive gears 11 at circumferencial direction on the described power input shaft 5, on the jack shaft 10 circumferencial direction fixedly install two respectively with the elementary driven gear 12 of two primary drive gears 11 engagement; Two elementary driven gears 12 are arranged on the both sides of driving gear 6; Present embodiment is the two-stage transmission, can realize the small inclination transmission than big speed ratio; First order transmission is that two primary drive gears 11 mesh with two elementary driven gears 12 respectively, realizes first order deceleration; Second level transmission is that non-involute becomes transverse tooth thickness driving gear 6 and the 8 realization small inclination lines engagements of involute change transverse tooth thickness driven gear, outputs power;
Because driven gear 8 is for tilting to install, it is big to take up room, be difficult for reducing volume, thus in first order transmission, adopt two primary drive gears 11 to reduce the volume of first order transmission with two elementary driven gear 12 engagements by power dividing respectively respectively, thus dwindle the volume of gear-box.
Explanation is at last, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technological scheme of the present invention, and not breaking away from the aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.

Claims (6)

1. small inclination drive gearbox, comprise casing (7), the power input shaft (5) and the pto (1) that are rotatably assorted with casing (7), driving gear (6) and be arranged on driven gear (8) on the pto (1), driving gear (6) and driven gear (8) are axial variable tooth thickness gear and are meshing with each other, form angle between pto (1) and the power input shaft (5), (8) one of driving gear (6) and driven gears are the non-involute gear, another is an involute gear, the flank of tooth of driving gear (6) is the conjugation of the flank of tooth of driven gear (8), it is characterized in that: described driven gear (8) is arranged on the pto (1) by axle sleeve (3), described axle sleeve (3) Spielpassung is enclosed within on the pto (1), and driven gear (8) is arranged on the axle sleeve (3) in the fixing mode of axially movable circumferencial direction; Described axle sleeve (3) inner circumference and pto (1) excircle be respectively provided to few 1 over against the groove that launches of spiral, the cross section of described groove is semicircle, meshes at circumferencial direction by the spherical rolling element (2) that is arranged in the groove between described axle sleeve (3) and the pto (1); In the transmission process, the axial thrust load that spherical rolling element (2) produces makes the driving gear (6) and the driven gear (8) that become transverse tooth thickness eliminate sideshake.
2. small inclination drive gearbox according to claim 1 is characterized in that: described driven gear (8) both sides are provided with the spring (4) with pretightening force respectively.
3. small inclination drive gearbox according to claim 2, it is characterized in that: be positioned at driven gear (8) both sides on the described axle sleeve (3) fixed block (9) is set respectively, described spring (4) is enclosed within on the axle sleeve (3), and an end leans against on the positioning block (9), and the other end presses closer driven gear (8).
4. small inclination drive gearbox according to claim 3 is characterized in that: described driving gear (6) is fixedly installed on the power input shaft (5) at circumferencial direction.
5. according to the described small inclination drive gearbox of arbitrary claim in the claim 1 to 4, it is characterized in that: also comprise the jack shaft (10) that is rotatably assorted with casing (7), described driving gear (6) is fixedly installed on the jack shaft (10) at circumferencial direction, described power input shaft (5) is gone up and to be fixedly installed two primary drive gears (11) at circumferencial direction, jack shaft (10) go up circumferencial direction fixedly install two respectively with the elementary driven gear (12) of two primary drive gears (11) engagement.
6. small inclination drive gearbox according to claim 5 is characterized in that: described two elementary driven gears (12) are arranged on the both sides of driving gear (6).
CN2008100702121A 2008-08-29 2008-08-29 Small inclination drive gearbox Expired - Fee Related CN101349322B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008100702121A CN101349322B (en) 2008-08-29 2008-08-29 Small inclination drive gearbox

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008100702121A CN101349322B (en) 2008-08-29 2008-08-29 Small inclination drive gearbox

Publications (2)

Publication Number Publication Date
CN101349322A CN101349322A (en) 2009-01-21
CN101349322B true CN101349322B (en) 2011-11-09

Family

ID=40268235

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008100702121A Expired - Fee Related CN101349322B (en) 2008-08-29 2008-08-29 Small inclination drive gearbox

Country Status (1)

Country Link
CN (1) CN101349322B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107387583B (en) * 2017-08-31 2023-05-16 重庆巴欧机电有限公司 Coupling
CN117620285B (en) * 2024-01-25 2024-05-28 廊坊市伊贝格机械有限公司 Transmission clearance adjustment control method, control system, equipment and medium

Also Published As

Publication number Publication date
CN101349322A (en) 2009-01-21

Similar Documents

Publication Publication Date Title
CN101285520B (en) Tooth thickness variable cylinder profile modified gear and gearing device using same
US20080087124A1 (en) Enveloping speed reducer
CN101907149A (en) Double cycloid single-stage reducer of industrial robot
CN101183816B (en) Decelerator for control motor
CN101382192A (en) Gap eliminating transmission case
CN101949429B (en) Single-stage cycloidal speed reducer of industrial robot
CN101349322B (en) Small inclination drive gearbox
CN102478098A (en) Compact type zero side clearance parallel-shaft gear speed reducer
US11473653B2 (en) Fixed ratio traction or friction drive
CN209925523U (en) Planetary cycloidal speed reducer for light robot
CN113324023B (en) Zero back clearance cycloid planetary reducer with bidirectional pre-tightening clearance adjustment
CN214661788U (en) Base cycloidal speed reducer for industrial heavy-duty robot
CN213017513U (en) Single-shaft output anti-backlash speed reducer
CN212616127U (en) Double-shaft output anti-backlash speed reducer
CN111594578A (en) Single-shaft output anti-backlash speed reducer
CN210128044U (en) Planetary reducer of robot
CN113983154A (en) Constant back clearance type planetary speed reducing mechanism
CN1032555C (en) High-ratio differential speed reducer
US6041670A (en) Gear transmission
CN107202099B (en) Coaxial bidirectional output positioning transmission device
CN112648344A (en) Planet gear single-plate staggered tooth back clearance adjustable planet speed reducer
CN221723389U (en) Variable speed coupling
CN220134531U (en) Adjustable anti-backlash precision speed reducer
CN218817899U (en) Hollow sealed cycloidal speed reducer for heavy industrial equipment
CN1067718A (en) A kind of high-speed-ratio differential speed reducer with end face output

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111109

Termination date: 20120829