CN104389992A - Cylindrical gear tooth backlash adjusting device with bend screw - Google Patents
Cylindrical gear tooth backlash adjusting device with bend screw Download PDFInfo
- Publication number
- CN104389992A CN104389992A CN201410555374.XA CN201410555374A CN104389992A CN 104389992 A CN104389992 A CN 104389992A CN 201410555374 A CN201410555374 A CN 201410555374A CN 104389992 A CN104389992 A CN 104389992A
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- gear
- fixed gear
- adjustable
- elbow
- screw rod
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- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims 2
- 238000000034 method Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
- F16H55/18—Special devices for taking up backlash
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
- Gear Transmission (AREA)
Abstract
The invention relates to a cylindrical gear tooth backlash adjusting device with a bend screw. The cylindrical gear tooth backlash adjusting device with the bend screw comprises a gear pair, wherein a gear 5 is of an integral type, the other gear consists of a fixed gear 1 and an adjustable gear 2, one end of the fixed gear 1 is provided with a ring boss 11, the adjustable gear 2 sleeves the ring boss 11, one end of an adjusting screw 6 is provided with a bend 61 and is clamped in an axial through hole 21 of the adjustable gear 2, the other end of the adjusting screw 6 is provided with external threads and is spirally connected with a threaded hole in the fixed gear 1, a fastening nut 62 is spirally connected with the outwards extending part of the adjusting screw 6, a locking device comprises a locking screw 7, the locking screw 7 penetrates through a through hole of the fixed gear 1, and the end with the external threads is spirally connected with the threaded hole of the adjustable gear 2. By adopting the structure, the bend 61 drives the adjustable gear 2 to rotate by rotating the screw 6, thus the adjustable gear 2 can rotate for a tiny angle relative to the fixed gear 1 and the adjustment of the tooth backlash is realized.
Description
Technical field
The present invention relates to column gear transmission technical field, be specifically related to a kind of band elbow screw rod adjustment cylindrical gears backlash device.
Background technique
In column gear transmission, can there is backlash between the gear teeth of engagement, along with the passing of service time, wheel odontotripsis can strengthen, and the backlash between gear teeth meshing also can increase gradually.In the machinery with precision drive requirement, backlash can have a strong impact on the precision that machinery is run.
At present, in adjustment column gear transmission backlash, its method generally has following two kinds: the first, utilizes spring force as loading force, make carrier wheel create an axial displacement relative to fixed gear, eliminate the backlash of a pair slant gear transmission.Its working principle: carrier wheel is sleeved on fixed gear by link, the end-face hole of carrier wheel is built with guide pin bushing, spring is contained in the hole of guide pin bushing, locking nut is pressed on pressure ring, pressure ring holddown spring, under spring force, carrier wheel creates an axial displacement relative to fixed gear, reduces backlash.But this structure can not be used for spur gear wheel transmission, slant gear transmission can only be applicable to, and spring force is limited, if when the load of slant gear transmission is larger, when axial thrust load is greater than spring force, carrier wheel would not move, and does not also just reach the object of adjustment backlash.The second, utilize craft or instrument of using makes transmitting gear create an angular displacement relative to fixed gear, adjust the backlash of a pair cylindrical gears, then tighten screw make transmitting gear and fixed gear fixing tightly together with.Because hand-turning can not the rotation of uniformly continous, the backlash size of adjustment is uncontrollable, and once hand unclamps transmitting gear, when going to tighten screw, backlash may change, and such backlash Adjustment precision is low, return operator to make troubles, make the inefficiency of operator.
Summary of the invention
Features such as the deficiency that prior art exists, the object of the present invention is to provide a kind of band elbow screw rod adjustment cylindrical gears backlash device, this device has that continuous stepless adjustment, Adjustment precision are high, self-locking, structure are simple, easy to operate.
The technical solution used in the present invention: a kind of band elbow screw rod adjustment cylindrical gears backlash device, comprise two gear pairs be meshed, be arranged on the first transmission shaft and second driving shaft respectively by flat key, it is characterized in that: two described gear pairs be meshed, one of them gear is monolithic construction, another gear is made up of fixed gear and adjustable gear, described fixed gear one end face is one-body molded annulus boss, described adjustable gear is provided with the endoporus matched with fixed gear annulus boss, and adjustable gear kink can rotate on fixed gear annulus boss.
By this setting, utilize adjustable gear empty set on fixed gear annulus boss, achieve location, cylndrical surface, adjustable gear is rotated freely, to adjust the gap of gear teeth flank.
The present invention is arranged further: described backlash regulating device comprises band elbow adjustment screw rod and tightening nut, described band elbow adjustment screw rod one end is provided with elbow, the other end relative with elbow is provided with outside thread, described elbow is buckled in adjustable gear through hole adjustment tank, and leave gap, described outside thread forms with axial threaded hole on fixed gear and is threaded, and stretch out from the other end of the relative annulus boss of fixed gear, described tightening nut and band elbow adjust screw rod and form spiral from the outside thread of fixed gear end face extension and be connected, and described outside thread offers word groove or a cross recess towards correspondence on the exterior edge face of tightening nut.
Adopt above-mentioned further setting, band elbow adjustment screw rod is utilized to adjust, its adjusting method: leave gap between band elbow screw rod and adjustable gear through hole, object is that elbow screw rod provides certain space with adjustable gear rotation, tightening nut is unclamped, with a word or Phillips screwdriver rotating band elbow screw rod, elbow will have an active force to promote adjustable gear rotation, and turn over a minute angle relative to fixed gear, the gear teeth of adjustable gear and fixed gear are misplaced, thus reach the object of adjustment backlash, after adjustment, tighten tightening nut again, guarantee backlash is constant, because threaded adjustment is continuous print, stepless, not only structure is simple, easy to operate, at any time can self-locking, and Adjustment precision is high.
The present invention is arranged further: described locking device comprises lock screw, and described lock screw through the axial hole of fixed gear, and leaves gap, forms spiral be connected with externally threaded one end with the axial threaded hole of adjustable gear.
Adopt above-mentioned further setting, by arranging lock screw, form spiral with adjustable gear to be connected, thus after adjustment backlash, adjustable gear and fixed gear are forced together tightly, these two gear face contacts define friction torque, two gears are rotated together, adopt above-mentioned further setting, the number of lock screw can be multiple, in the present invention preferably three, three lock screws are evenly distributed on the end face of fixed gear and adjustable gear together with a band elbow adjustment screw rod, be conducive to easy to process on the one hand, ensure that adjustable gear and fixed gear surface of contact have enough friction torque on the other hand, and larger gear transmission load can be born.
The axial hole of lock screw and fixed gear leaves gap, and object is that the lock screw rotated with adjustable gear has certain activity space, and this space does not need very large, and the gear teeth backlash of general adjustment only has several.
Accompanying drawing explanation
Fig. 1 is the assembling front view of the specific embodiment of the invention;
Fig. 2 is that A-A sectional view is looked on the assembling right side of the specific embodiment of the invention.
Embodiment
As Fig. 1, a kind of band elbow screw rod adjustment cylindrical gears backlash device is given shown in 2, comprise two gear pairs be meshed, be meshed two described gear pairs, one of them engaging gear is made up of fixed gear 1 and adjustable gear 2, and fixed gear 1 center hole is provided with the axial keyway corresponding with keyway on the first transmission shaft 3, be fastened on the axle journal of the first transmission shaft 3 with flat key, another engaging gear is that integral gear 5 center hole is provided with the axial keyway corresponding with keyway on second driving shaft 4, be fastened on the axle journal of second driving shaft 4 with flat key, one end face of described fixed gear 1 is one-body molded annulus boss 11, described adjustable gear 2 is provided with the endoporus matched with fixed gear 1 annulus boss 11, and adjustable gear 2 kink can rotate on fixed gear 1 annulus boss 11, achieve location, cylndrical surface, adjustable gear is rotated freely, to adjust backlash.
Backlash regulating device described in the present embodiment, comprise band elbow adjustment screw rod 6 and tightening nut 62, described band elbow adjustment screw rod 6 one end is provided with elbow 61, the other end relative with elbow 61 is provided with outside thread, described elbow 61 is buckled in adjustable gear 2 corresponding axial hole 21 adjustment tank, and leave gap, described outside thread forms with axial threaded hole on fixed gear 1 and is threaded, and stretch out from the other end of the relative annulus boss 11 of fixed gear 1, described tightening nut 62 and band elbow adjust screw rod 6 and form spiral from the outside thread of fixed gear 1 end face extension and be connected, and described outside thread offers word groove or a cross recess towards correspondence on the exterior edge face of tightening nut 62.Its adjusting method: first tightening nut 62 is unclamped, with a word or Phillips screwdriver rotating band elbow screw rod 6, elbow 61 will have an active force promotion adjustable gear 2 to rotate, and turn over a minute angle relative to fixed gear 1, adjustable gear 2 is misplaced with the gear teeth of fixed gear 1, reach the object of adjustment gear teeth backlash, after adjustment, tighten tightening nut 62 again, guarantee backlash is constant, because threaded adjustment is continuous print, stepless, not only structure simple, easy to operate, at any time can self-locking, and Adjustment precision is high.
Locking device described in the present embodiment comprises lock screw 7, described lock screw 7 is through the axial hole 12 of fixed gear 1, and leave gap, form spiral with externally threaded one end with the axial threaded hole of adjustable gear 2 to be connected, after adjustment gear teeth backlash, adjustable gear 2 and fixed gear 1 are forced together tightly, these two gear end contacts define friction torque, and two gears are rotated together.The number of lock screw 7 can be multiple, in the present invention preferably three, three lock screws 7 and a band elbow adjustment screw rod 6 are evenly distributed on fixed gear 1 with on the end face of adjustable gear 2, be conducive to easy to process on the one hand, ensure that the friction torque of adjustable gear 2 and fixed gear 1 surface of contact on the other hand, and more heavy load can be born.Lock screw 7 leaves gap with the through hole 12 of fixed gear 1, and object is that the lock screw 7 rotated with adjustable gear 2 has certain activity space, and this space does not need very large, and the backlash of general adjustment only has several.
Adopt said structure, both the adjustment of straight toothed spur gear backlash had been gone for, also go for the adjustment of helical gear backlash, there is continuous stepless adjustment, high, the auto-lock function of Adjustment precision, the features such as structure is simple, easy to operate simultaneously.
Claims (3)
1. a band elbow screw rod regulates cylindrical gears backlash device, comprise two gear pairs be meshed, be arranged on the first transmission shaft and second driving shaft respectively by flat key, it is characterized in that: two described gear pairs be meshed, one of them gear is monolithic construction, another gear is made up of fixed gear and adjustable gear, described fixed gear one end face is one-body molded annulus boss, described adjustable gear is provided with the endoporus matched with fixed gear annulus boss, and adjustable gear kink can rotate on fixed gear annulus boss.
2. one band elbow screw rod according to claim 1 regulates cylindrical gears backlash device, it is characterized in that: the backlash controlling device that adjustable gear rotates relative to fixed gear, described backlash controlling device comprises band elbow adjusting screw rod and tightening nut, described band elbow adjusting screw rod one end is provided with elbow, the other end relative with elbow is provided with outside thread, described elbow is buckled in adjustable gear through hole regulating tank, and leave gap, described outside thread forms with axial threaded hole on fixed gear and is threaded, and stretch out from the other end of the relative annulus boss of fixed gear, described tightening nut forms spiral with band elbow adjusting screw rod from the outside thread of fixed gear end face extension and is connected, and described outside thread offers word groove or a cross recess towards correspondence on the exterior edge face of tightening nut.
3. one band elbow screw rod according to claim 1 regulates cylindrical gears backlash device, it is characterized in that: between fixed gear and adjustable gear, be provided with locking device, described locking device comprises lock screw, described lock screw is through the axial hole of fixed gear, and leave gap, form spiral with externally threaded one end with the axial threaded hole of adjustable gear and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410555374.XA CN104389992B (en) | 2014-09-28 | 2014-09-28 | Band elbow screw rod adjusts roller gear backlash device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410555374.XA CN104389992B (en) | 2014-09-28 | 2014-09-28 | Band elbow screw rod adjusts roller gear backlash device |
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| Publication Number | Publication Date |
|---|---|
| CN104389992A true CN104389992A (en) | 2015-03-04 |
| CN104389992B CN104389992B (en) | 2016-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410555374.XA Active CN104389992B (en) | 2014-09-28 | 2014-09-28 | Band elbow screw rod adjusts roller gear backlash device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286717A (en) * | 2016-09-14 | 2017-01-04 | 大连理工大学 | A kind of symmetry constraint double helical tooth planetary actuating device |
| CN106286718A (en) * | 2016-09-14 | 2017-01-04 | 大连理工大学 | A kind of combination type double helical tooth planetary actuating device of adjustable sideshake |
| CN107701870A (en) * | 2017-10-20 | 2018-02-16 | 江苏雷奥生物科技有限公司 | A kind of new medical stopping means |
| CN111059251A (en) * | 2020-01-09 | 2020-04-24 | 中航电测仪器股份有限公司 | Multi-stage transmission speed reduction anti-backlash gear box for airplane and anti-backlash method |
| WO2021128620A1 (en) * | 2019-12-24 | 2021-07-01 | 广州市浩洋电子股份有限公司 | Stage lamp using gears to drive lamp head to rotate |
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| US3803936A (en) * | 1972-10-06 | 1974-04-16 | Johnson & Johnson | Adjustable herringbone gears for use in embossing, engraving, and the like |
| CN200978941Y (en) * | 2006-07-21 | 2007-11-21 | 北京理工大学 | Device for eliminating cylindrical gear backlash |
| CN201416617Y (en) * | 2009-06-03 | 2010-03-03 | 江苏亚威机床股份有限公司 | Anti-backlash gear |
| CN201944231U (en) * | 2011-01-17 | 2011-08-24 | 成都西科微波通讯有限公司 | Micro-gear eliminating backlash mechanism |
| CN202510663U (en) * | 2012-01-11 | 2012-10-31 | 王斌武 | Anti-backlash gear |
| CN204164325U (en) * | 2014-09-28 | 2015-02-18 | 温州职业技术学院 | Band elbow screw rod adjustment cylindrical gears backlash device |
-
2014
- 2014-09-28 CN CN201410555374.XA patent/CN104389992B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3803936A (en) * | 1972-10-06 | 1974-04-16 | Johnson & Johnson | Adjustable herringbone gears for use in embossing, engraving, and the like |
| CN200978941Y (en) * | 2006-07-21 | 2007-11-21 | 北京理工大学 | Device for eliminating cylindrical gear backlash |
| CN201416617Y (en) * | 2009-06-03 | 2010-03-03 | 江苏亚威机床股份有限公司 | Anti-backlash gear |
| CN201944231U (en) * | 2011-01-17 | 2011-08-24 | 成都西科微波通讯有限公司 | Micro-gear eliminating backlash mechanism |
| CN202510663U (en) * | 2012-01-11 | 2012-10-31 | 王斌武 | Anti-backlash gear |
| CN204164325U (en) * | 2014-09-28 | 2015-02-18 | 温州职业技术学院 | Band elbow screw rod adjustment cylindrical gears backlash device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286717A (en) * | 2016-09-14 | 2017-01-04 | 大连理工大学 | A kind of symmetry constraint double helical tooth planetary actuating device |
| CN106286718A (en) * | 2016-09-14 | 2017-01-04 | 大连理工大学 | A kind of combination type double helical tooth planetary actuating device of adjustable sideshake |
| CN107701870A (en) * | 2017-10-20 | 2018-02-16 | 江苏雷奥生物科技有限公司 | A kind of new medical stopping means |
| CN107701870B (en) * | 2017-10-20 | 2023-08-01 | 江苏雷奥生物科技有限公司 | Novel medical limiting device |
| WO2021128620A1 (en) * | 2019-12-24 | 2021-07-01 | 广州市浩洋电子股份有限公司 | Stage lamp using gears to drive lamp head to rotate |
| CN111059251A (en) * | 2020-01-09 | 2020-04-24 | 中航电测仪器股份有限公司 | Multi-stage transmission speed reduction anti-backlash gear box for airplane and anti-backlash method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104389992B (en) | 2016-11-16 |
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Address after: 325000 Zhejiang Province, Wenzhou city Ouhai District East Road No. 38 National University Science Park Incubator Applicant after: Wenzhou Vocational & Technical College Address before: Dasan Ouhai District 325035 Zhejiang province Wenzhou Higher Education Park Applicant before: Wenzhou Vocational & Technical College |
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| TR01 | Transfer of patent right |
Effective date of registration: 20190905 Address after: 401420 No. 11 Xiya North Road, Gunan Street, Qijiang District, Chongqing Patentee after: Qijiang Changfeng gear (Group) Co., Ltd. Address before: 325000 Zhejiang Province, Wenzhou city Ouhai District East Road No. 38 National University Science Park Incubator Patentee before: Wenzhou Vocational & Technical College |
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| TR01 | Transfer of patent right |