CN102734433A - Gear transmission mechanism for eliminating backlash - Google Patents
Gear transmission mechanism for eliminating backlash Download PDFInfo
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- CN102734433A CN102734433A CN2012102311275A CN201210231127A CN102734433A CN 102734433 A CN102734433 A CN 102734433A CN 2012102311275 A CN2012102311275 A CN 2012102311275A CN 201210231127 A CN201210231127 A CN 201210231127A CN 102734433 A CN102734433 A CN 102734433A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 19
- 230000008030 elimination Effects 0.000 claims description 28
- 238000003379 elimination reaction Methods 0.000 claims description 28
- 238000009434 installation Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
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Abstract
The invention discloses a gear transmission mechanism for eliminating backlash, which comprises: a main gear having an axial through cavity; the anti-backlash gears are arranged on one side of the main gear side by side, and external splines are axially arranged on the outer wall of the other side of the main gear; the torsion bar can be rotatably arranged in the through cavity in a penetrating way, the extending part on one side of the torsion bar is fixedly connected with a pin shaft which is arranged in a way of being vertical to the axial direction, the anti-backlash gear is arranged on the pin shaft, and the outer wall of the extending part on the other side of the torsion bar is provided with an outer oblique tooth section along the axial direction; the inner helical gear is sleeved on the other side of the torsion bar, the inner side of the inner helical gear is axially provided with a stepped mounting groove hole, and an inner spline and an inner helical tooth section are axially arranged in the mounting groove hole; the external spline of the main gear is matched with the internal spline of the internal helical gear, and the external helical gear section on the extending part at the other side of the torsion bar is meshed with the internal helical gear section of the internal helical gear. The invention can eliminate the gear transmission backlash and the tooth meshing clearance, and has the advantages of convenient adjustment and easy operation.
Description
Technical field
The present invention relates to gear, relate in particular to a kind of gear transmission and eliminate sideshake mechanism.
Background technique
At present, round disk saw is in sawing process, because saw blade is that a diameter is bigger, iron chains have the disk of a lot of sawtooth on the circumference, and its thickness is very little with the ratio of diameter; And be again to work at high speed rotating and under the condition of sending at a high speed, in the sawing course of working, each sawtooth is the interrupted cutting workpiece in succession, so ubiquity serious vibration problem.Vibration when working for reducing saw blade, the gear backlash in the crack saw uni-drive gear box that need disappear makes motor be reduced to minimum to the backlash of saw blade, and the hard tooth of better protection saw blade, improves cutting rate.
As shown in Figure 1, be the gap-eliminating structure of the driving gear of existing round disk saw uni-drive gear box.This gear-box is the helical gear transmission, and clearance elimination gear 102 and gear shaft 101 are connected through interference fit, and rotation clearance elimination gear 102 can make clearance elimination gear 102 and gear shaft 101 on circumference, produce certain dislocation; When eliminating the gear transmission sideshake, must be at first combine and suppress, when reaching requirement pressure to interference; Rotate clearance elimination gear 102, eliminate sideshake, tighten screw then; Disappear crack small gear and gear shaft are fixed, reached the purpose of eliminating sideshake.Though said structure is simple in structure, adjustment is inconvenient, receives the gear-box spacial influence bigger, and is not easy to operate, simultaneously, since the foozle of gear, the sideshake in the time of also can not eliminating all tooth engagements simultaneously.
Because the above-mentioned problems of existing technology; The design people is based on being engaged in association area rich experiences and professional knowledge for many years, and is actual in conjunction with using, and actively studies innovation; In the hope of overcoming the above-mentioned shortcoming of existing technology; A kind of easy to adjust, easy operating is provided, can eliminates the gear transmission sideshake, can eliminate the gear transmission of tooth back lash again and eliminate sideshake mechanism.
Existing technology:
The 101-gear shaft; Clearance elimination gear 102.
The present invention:
The 1-master gear; The 2-clearance elimination gear; The 3-torsion bar; The 4-internal helical gear; The 5-adjusting nut; The 6-lumen; The 7-external splines;
The 8-bearing pin; The outer helical teeth section of 9-; The 10-internal spline; Helical teeth section in the 11-; The 12-external gear; The 13-external thread section.
Summary of the invention
The purpose of this invention is to provide a kind of easy to adjust, easy operating, can eliminate the gear transmission sideshake, can eliminate the gear transmission of tooth back lash again and eliminate sideshake mechanism.
For achieving the above object, the present invention proposes a kind of gear transmission and eliminates sideshake mechanism, and comprising: master gear has axial lumen; Clearance elimination gear is arranged side by side the side in said master gear, is axially arranged with external splines in the outer wall upper edge of said master gear opposite side; Torsion bar can be arranged in said lumen rotationally, and the extension of said torsion bar one side and the bearing pin of setting perpendicular to axial direction are affixed, and said clearance elimination gear is installed on the said bearing pin, offers outer helical teeth section on the outer wall of the extension of said torsion bar opposite side vertically; Internal helical gear is socketed on the opposite side of said torsion bar, and the inboard of said internal helical gear offers stair-stepping installation slotted eye vertically, is provided with internal spline and interior helical teeth section in the said installation slotted eye vertically; The external splines of said master gear matches with the internal spline of said internal helical gear, and the outer helical teeth section on the extension of said torsion bar opposite side is meshed with the interior helical teeth section of said internal helical gear.
Sideshake mechanism is eliminated in aforesaid gear transmission; Wherein, On the outer wall of the extension of said torsion bar opposite side, be provided with external thread section; This external thread section is positioned at the said outer helical teeth section outside, and an adjusting nut is linked on the said external thread section, and said adjusting nut is connected to the outside of said internal helical gear.
Compared with prior art, the present invention has following characteristics and advantage:
1, the present invention drives internal helical gear and slides vertically through the adjusting nut of rotation master gear side, and the helical teeth engagement through internal helical gear and torsion bar drives torsion bar and rotates, and then makes clearance elimination gear rotate synchronously, reaches the effect of eliminating the gear engagement sideshake.
2 and, the present invention can adjust the screw-down torque of adjusting nut through the amount of screwing of adjustment adjusting nut, and then regulates the pretightening force of clearance elimination gear, eliminated and master gear, clearance elimination gear and external gear between the drive gap of gear engagement.
3, the present invention has advantage easy to adjust, easy operating.
Description of drawings
Accompanying drawing described here only is used for task of explanation, and is not intended to limit by any way scope disclosed by the invention.In addition, the shape of each parts among the figure and proportional sizes etc. are merely schematically, be used for helping to understanding of the present invention, and be not shape and the proportional sizes that specifically limits each parts of the present invention.Those skilled in the art can select various possible shapes and proportional sizes to come embodiment of the present invention under instruction of the present invention as the case may be.
Fig. 1 is the schematic representation of gap-eliminating structure of the driving gear of existing round disk saw uni-drive gear box;
Fig. 2 eliminates the structural representation of sideshake mechanism for gear transmission of the present invention.
Description of reference numerals:
Embodiment
In conjunction with the description of the accompanying drawing and the specific embodiment of the invention, can be well understood to details of the present invention more.But embodiment of the present invention described here only is used to explain the object of the invention, is limitation of the present invention and can not be understood as by any way.Under instruction of the present invention, the technician can conceive based on possible distortion arbitrarily of the present invention, and these all should be regarded as and belong to scope of the present invention.
Please refer to Fig. 2, eliminate the structural representation of sideshake mechanism for gear transmission of the present invention.As shown in the figure, the gear transmission that the present invention proposes is eliminated sideshake mechanism and comprised at least: master gear 1, clearance elimination gear 2, torsion bar 3 and internal helical gear 4, wherein, master gear 1 has axial lumen 6, is used to hold torsion bar 3 and allows torsion bar 3 in lumen 6, to rotate.Clearance elimination gear 2 is arranged side by side the side in master gear 1, is axially arranged with external splines 7 in the outer wall upper edge of master gear 1 opposite side.Torsion bar 3 can be arranged in lumen 6 rotationally, and the both sides of torsion bar 3 are stretched out the two ends of lumen 6 respectively, and the extension of torsion bar 3 one sides and the bearing pin 8 of setting perpendicular to axial direction are affixed, makes torsion bar 3 and bearing pin 8 connect as one.Clearance elimination gear 2 is installed on the bearing pin 8, makes torsion bar 3 to drive clearance elimination gear 2 through bearing pin 8 and rotates.Offer outer helical teeth section 9 on the outer wall of the extension of torsion bar 3 opposite sides vertically.Internal helical gear 4 is socketed on the opposite side of torsion bar 3; The inboard of internal helical gear 4 offers stair-stepping installation slotted eye vertically; Install and be provided with internal spline 10 and interior helical teeth section 11 in the slotted eye vertically successively; The external splines 7 of master gear 1 matches with the internal spline 10 of internal helical gear 4, makes internal helical gear 4 to endwisely slip in the driving lower edge of external force; Outer helical teeth section 9 on the extension of torsion bar 3 opposite sides is meshed with the interior helical teeth section 11 of internal helical gear 4, and helical teeth section 11 cooperates with outer helical teeth section 9 to drive torsion bar 3 rotations in making.Like this; Internal helical gear 4 matches mobile vertically under the effect of external force with internal spline 10 through external splines 7, meanwhile, interior helical teeth section 11 matches with outer helical teeth section 9 and makes torsion bar 3 produce rotation; And torsion bar 3 rotates through bearing pin 3 drive clearance elimination gears 2 synchronously; Thereby the deviation that clearance elimination gear 2 and master gear 1 are produced on the phase place, and the external tooth of clearance elimination gear 2 and master gear 1 all is meshed with external gear 12, when clearance elimination gear 2 produces dislocation with master gear 1; Clearance elimination gear 2 struts swelling with the external tooth of master gear 1 in the teeth groove of external gear 12, and then reaches the effect of eliminating the gear engagement sideshake.
In the present invention, endwisely slip in order to drive internal helical gear 4, the present invention cooperates with torsion bar 3 through adjusting nut 5 and realizes.Specifically, on the outer wall of the extension of torsion bar 3 opposite sides, be provided with external thread section 13, this external thread section 13 is positioned at outer helical teeth section 9 outsides; Adjusting nut 5 has internal thread; Make adjusting nut 5 be linked on the external thread section 13, adjusting nut 5 and external thread section 13 screw-thread fit, the amount of screwing of adjustment adjusting nut 5; Adjusting nut 5 can move axially in external thread section 13 upper edges of torsion bar 3, makes adjusting nut 5 be connected to the outside of internal helical gear 4.Like this, when adjusting nut 5 during along external thread section 13 precessions, adjusting nut 5 pushes internal helical gear 4 and slides vertically; Through the helical teeth engagement of internal helical gear 4 with torsion bar 3; Drive torsion bar 3 and rotate, and then make clearance elimination gear 2 rotate synchronously, reach the effect of eliminating the gear engagement sideshake.After eliminating the gear engagement sideshake; Again through adjusting the amount of screwing of adjusting nut 5; Make torsion bar 3 continue to eliminate the rotation of sideshake direction to clearance elimination gear 2; Make torsion bar 3 produce internal torque, can change clearance elimination gear 2 and the size of master gear 1, thereby eliminate the drive gap of tooth engagement with the preparatory contact force of external gear 12 engagements.
Sideshake mechanism is eliminated in gear transmission of the present invention; Only need to reach the effect in the crack that disappears through the adjusting nut 5 of rotation master gear 1 side; And can be through the amount of screwing of adjustment adjusting nut 5; Adjust the screw-down torque of adjusting nut 5, and then regulate the pretightening force of clearance elimination gear, eliminated and master gear 1, clearance elimination gear 2 and external gear 12 between the drive gap of gear engagement.That the present invention has is easy to adjust, the advantage of easy operating.
To the illustrated in detail of above-mentioned each mode of execution, its purpose only is the present invention is made an explanation, so that can understand the present invention better; But; It is limitation of the present invention that these descriptions can not be construed to any reason, and particularly, each characteristic of in different embodiment, describing is combination in any each other also; Thereby form other mode of executions; Except clear and definite opposite description is arranged, these characteristics should be understood that can be applied in any one mode of execution, and also not only are confined to described mode of execution.
Claims (2)
1. sideshake mechanism is eliminated in a gear transmission, it is characterized in that, said elimination sideshake mechanism comprises:
Master gear has axial lumen;
Clearance elimination gear is arranged side by side the side in said master gear, is axially arranged with external splines in the outer wall upper edge of said master gear opposite side;
Torsion bar can be arranged in said lumen rotationally, and the extension of said torsion bar one side and the bearing pin of setting perpendicular to axial direction are affixed, and said clearance elimination gear is installed on the said bearing pin, offers outer helical teeth section on the outer wall of the extension of said torsion bar opposite side vertically;
Internal helical gear is socketed on the opposite side of said torsion bar, and the inboard of said internal helical gear offers stair-stepping installation slotted eye vertically, is provided with internal spline and interior helical teeth section in the said installation slotted eye vertically;
The external splines of said master gear matches with the internal spline of said internal helical gear, and the outer helical teeth section on the extension of said torsion bar opposite side is meshed with the interior helical teeth section of said internal helical gear.
2. sideshake mechanism is eliminated in gear transmission as claimed in claim 1; It is characterized in that; On the outer wall of the extension of said torsion bar opposite side, be provided with external thread section; This external thread section is positioned at the said outer helical teeth section outside, and an adjusting nut is linked on the said external thread section, and said adjusting nut is connected to the outside of said internal helical gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210231127.5A CN102734433B (en) | 2012-07-04 | 2012-07-04 | Gear transmission mechanism for eliminating backlash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210231127.5A CN102734433B (en) | 2012-07-04 | 2012-07-04 | Gear transmission mechanism for eliminating backlash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102734433A true CN102734433A (en) | 2012-10-17 |
| CN102734433B CN102734433B (en) | 2015-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210231127.5A Active CN102734433B (en) | 2012-07-04 | 2012-07-04 | Gear transmission mechanism for eliminating backlash |
Country Status (1)
| Country | Link |
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| CN (1) | CN102734433B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112706831A (en) * | 2019-10-25 | 2021-04-27 | 比亚迪股份有限公司 | Steering system and automobile |
| CN114810845A (en) * | 2022-04-28 | 2022-07-29 | 洛阳轴承研究所有限公司 | Spline transmission device capable of realizing self-elimination of transmission side clearance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB264082A (en) * | 1926-08-10 | 1927-01-13 | Herbert Lovelady | Improvements in worm wheel gearing |
| JP2003312495A (en) * | 2002-04-23 | 2003-11-06 | Toyoda Mach Works Ltd | Motor-driven power steering gear |
| CN101265967A (en) * | 2008-04-14 | 2008-09-17 | 蔡洪涛 | Antifriction multi- arrangement roller bearing gear |
| CN201202796Y (en) * | 2008-04-23 | 2009-03-04 | 天津赛瑞机器设备有限公司 | Beveled gear sub gap adjusting apparatus of sawing head for milling saw |
| CN202646612U (en) * | 2012-07-04 | 2013-01-02 | 中冶京诚工程技术有限公司 | Gear transmission mechanism for eliminating backlash |
-
2012
- 2012-07-04 CN CN201210231127.5A patent/CN102734433B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB264082A (en) * | 1926-08-10 | 1927-01-13 | Herbert Lovelady | Improvements in worm wheel gearing |
| JP2003312495A (en) * | 2002-04-23 | 2003-11-06 | Toyoda Mach Works Ltd | Motor-driven power steering gear |
| CN101265967A (en) * | 2008-04-14 | 2008-09-17 | 蔡洪涛 | Antifriction multi- arrangement roller bearing gear |
| CN201202796Y (en) * | 2008-04-23 | 2009-03-04 | 天津赛瑞机器设备有限公司 | Beveled gear sub gap adjusting apparatus of sawing head for milling saw |
| CN202646612U (en) * | 2012-07-04 | 2013-01-02 | 中冶京诚工程技术有限公司 | Gear transmission mechanism for eliminating backlash |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112706831A (en) * | 2019-10-25 | 2021-04-27 | 比亚迪股份有限公司 | Steering system and automobile |
| CN112706831B (en) * | 2019-10-25 | 2023-06-13 | 比亚迪股份有限公司 | Steering system and automobile |
| CN114810845A (en) * | 2022-04-28 | 2022-07-29 | 洛阳轴承研究所有限公司 | Spline transmission device capable of realizing self-elimination of transmission side clearance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102734433B (en) | 2015-08-12 |
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Effective date of registration: 20220214 Address after: 100176 No.7 Jian'an street, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee after: Capital Engineering & Research Incorporation Limited Patentee after: CERI Long Product Co.,Ltd. Address before: 100176 No.7 Jian'an street, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee before: Capital Engineering & Research Incorporation Limited Patentee before: CERI TECHNOLOGY Co.,Ltd. |
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