CN203285953U - Mechanical gap removing transmission device with double-worm and worm gear mechanism - Google Patents
Mechanical gap removing transmission device with double-worm and worm gear mechanism Download PDFInfo
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- CN203285953U CN203285953U CN2013202342381U CN201320234238U CN203285953U CN 203285953 U CN203285953 U CN 203285953U CN 2013202342381 U CN2013202342381 U CN 2013202342381U CN 201320234238 U CN201320234238 U CN 201320234238U CN 203285953 U CN203285953 U CN 203285953U
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- worm
- gear
- worm screw
- screw group
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Abstract
Provided is a mechanical gap removing transmission device with a double-worm and worm gear mechanism. The mechanical gap removing transmission device with the double-worm and worm gear mechanism comprises the double-worm and worm gear mechanism and a gap removing transmission mechanism. The double-worm and worm gear mechanism comprises a first box body, a second box body, a worm gear, a first worm set and a second worm set, wherein the worm gear is installed in the first box body, the first worm set and the second worm set are arranged parallel to the central plane of the worm gear, and a first gear and a second gear are installed at the shaft end, on one side, of the first worm set and the shaft end, on the same side, of the second worm set respectively. The gap removing transmission mechanism comprises a gear pressing sleeve, a first transmission shaft, a second transmission shaft, a bearing and a bearing block, wherein a third gear and a fourth gear are installed on the end portion of the first transmission shaft and the end portion of the second transmission shaft respectively, the third gear is meshed with the first gear, and the fourth gear is meshed with the second gear. The mechanical gap removing transmission device with the double-worm and worm gear mechanism has the advantages of being capable of carrying out manual adjustment and control on transmission gaps, free of match grinding of an adjusting shim, and particularly applicable to complex movement mechanisms which are used for driving load gravity center torque to carry out forward-and-reverse rotation changes so as to enable the double-worm and worm gear mechanism to carry out front-and-rear side changes, and mechanisms which are influenced by the impact load.
Description
Technical field
The utility model relates to a kind of twin worm Worm gear mechanism machinery gap transmission device that disappears, and refers in particular to a kind of load and moment variations, the transmission device of the effect of being hit and frequent clockwise and anticlockwise campaign.
Background technique
Worm and worm-wheel gearing because velocity ratio is large, stable drive, can realize the characteristics such as high pulling torque transmission, have a wide range of applications in mechanical transmission.In some mechanical transmission, drive gap there is is strict requirement, sometimes even require the zero clearance transmission, to meet forward and reverse drive control precision.At present, the mechanical, hand-drivens such as double pitch worm transmission, double worm and the split worm drive commonly used gap method that disappears in worm couple, all worm screw to be moved axially be close to the worm gear flank of tooth to reduce drive gap by adjusting pad or adjusting nut and adjusting wedge-shaped blocks, processing, installation difficulty, adjust loaded down with trivial details.
No. 92102601.3 double-acting dynamic back clearance-eliminating driving systems of patent of invention, comprise that mainly having two groups of worm screws with the worm gear coupling organizes, the twin worm that is set in parallel in frame is united driving as double driving shafts, wherein one group of worm screw is applied rotary driving force continuously, another group worm screw of controlling as displacement amount is by packing, be the gapless state, this moment is when the drive displacement amount is controlled the past pressurized direction of worm screw and retreated, worm gear is driven worm drive and being moved to of doing to chase till the packing displacement amount is controlled worm screw once again, form the dynamic back clearance-eliminating driving system by load back clearance state Self-adjustment speed difference.When the combined type driving mode, distribute and make the rotating speed of transporting to the driving worm screw higher than control the rotating speed of worm screw higher than the drive displacement amount through train by single rotating power source, certainly will make like this coupling place of driving worm and wheel be in the pushing state always, affect stress and the fatigue life of worm gear pair, also need simultaneously slidably torque limit device, with the speed difference of balance sysmte, to be not suitable for forward and reverse transmission of varying load, torque-variable; When the separated type driving mode, namely separately independently power drive respectively twin worm, require the twin worm motor coordination, guarantee not stuck phenomenon to occur because of the latching characteristics of worm couple, or carry out determining torsion and drive to guarantee the normal operation of driving mechanism.Above-mentioned double-acting dynamic back clearance-eliminating driving system, be the gap principle that disappears of utilizing back clearance state Self-adjustment speed difference, and essence is to eliminate drive gap by Torque Control, is not suitable for equally impact loading, the transmission accuracy requirement is high and load is large system.
Summary of the invention
The adjustment that existing lash adjusting device exists is loaded down with trivial details in order to overcome, operation is with requiring two the driving and transmission that the control synchronization discrepancy brings and the problem of servo-system complexity in the electric gap method that disappears of duration, Torque Control and controlling angle, the utility model proposes and a kind ofly can adjust quickly and easily drive gap, keep transmission accuracy, be applicable to heavy duty, loading moment changes and clockwise and anticlockwise changes frequently the twin worm Worm gear mechanism machinery gap transmission device that disappears.
The twin worm Worm gear mechanism machinery described in the utility model gap transmission device that disappears, it is characterized in that: comprise the twin worm Worm gear mechanism and the gap driving mechanism that disappears, described twin worm Worm gear mechanism comprises the first casing, the second casing, worm gear and the first worm screw group, the second worm screw group, and described worm gear is arranged in described the first casing; Described the first worm screw group, described the second worm screw group are arranged in parallel with described worm gear median plane, and the two ends of described the first worm screw group, described the second worm screw group are fixed on the first casing by corresponding bearing, a set of cups and end cap supporting respectively; The worm screw of described the first worm screw group consists of short worm shaft and jack shaft, and gap is left in the junction of described short worm shaft and described jack shaft; Described the first worm screw group is installed the first gear, the second gear by flat key respectively with the homonymy axle head of described the second worm screw group;
Bearing and bearing support that the described gap driving mechanism that disappears comprises the gear clamping sleeve, is distributed in the first transmission shaft, the second driving shaft of gear clamping sleeve both sides and supports corresponding the first transmission shaft and second driving shaft; Bearing support is fixed on the second casing; Described gear clamping sleeve by clamp cap with described the first transmission shaft with second driving shaft is coaxial connects as one; Be equipped with respectively and the 3rd gear of described the first gear engagement and the 4th gear that meshes with described the second gear the end of described the first transmission shaft and the end of described second driving shaft.
The same rotation direction of worm screw of described the first worm screw group and described the second worm screw group.
Described the first gear, the second gear, the 3rd gear and the 4th gear are helical gear.
Described the second casing can be connected as a single entity with described the first casing, also can use separately.
Described the first worm screw group and described the second worm screw group adopt single-ended bi-directional axial orientation type location.
During the gap that disappears operation, unscrew the clamp cap on the gear clamping sleeve, apply the gap torque that disappears of opposite direction on the first transmission shaft and second driving shaft, the 3rd gear by being installed on the first end part of driving shaft and the first gear of the first worm screw group axle head, the 4th gear that is installed on the second driving shaft end realize with the second gear of the second worm screw group axle head the rotating in same direction that the first worm screw group and the second worm screw are organized respectively, eliminate the first worm screw group and the second worm screw group corresponding worm screw and worm gear between the purpose of back clearance, screw clamp cap after eliminating; No matter by the forward and reverse rotation of Sports band load or the swing of the main shaft output of worm gear, and load center of gravity moment generation clockwise and anticlockwise changes, and not there will be ataxia or impacts concussion.
The beneficial effects of the utility model are: can manually adjust and control easily drive gap, need not match grinding and adjust pad, being particularly suitable for driving load center of gravity moment generation clockwise and anticlockwise changes and causes the worm-and-wheel gear back clearance that the compound movement mechanism of just tossing about and changing and the mechanism of the load that is hit occur.
Description of drawings
Fig. 1 is sectional view of the present utility model.
Fig. 2 is the structural drawing (arrow represents the sense of rotation of the first transmission shaft and second driving shaft) of the gap driving mechanism that disappears of the present utility model.
Fig. 3 is that the A-A of Fig. 2 is to sectional view.
Fig. 4 is that back clearance of the present utility model is eliminated schematic diagram.
Embodiment
Further illustrate the utility model below in conjunction with accompanying drawing
With reference to accompanying drawing:
The twin worm Worm gear mechanism machinery described in the utility model gap transmission device that disappears, comprise twin worm Worm gear mechanism 1 and the gap driving mechanism 2 that disappears, described twin worm Worm gear mechanism 1 comprises the first casing 11, the second casing 12, worm gear 13 and the first worm screw group the 14, second worm screw group 15, and described worm gear 13 is arranged in described the first casing 11; Described the first worm screw group 14, described the second worm screw group 15 are arranged in parallel with described worm gear 13 median planes, and the two ends of described the first worm screw group 14, described the second worm screw group 15 are fixed on the first casing 11 by corresponding bearing, a set of cups and end cap supporting respectively; The worm screw of described the first worm screw group 14 consists of short worm shaft 141 and jack shaft 142, and gap 143 is left in the junction of described short worm shaft 141 and described jack shaft 142; Described the first worm screw group 14 is installed the first gear 144, the second gear 151 by flat key respectively with the homonymy axle head of described the second worm screw group 15;
Bearing and bearing support that the described gap driving mechanism 2 that disappears comprises gear clamping sleeve 21, is distributed in the first transmission shaft 22, the second driving shaft 23 of gear clamping sleeve both sides and supports corresponding the first transmission shaft 22 and second driving shaft 23; Bearing support is fixed on the second casing 12; Described gear clamping sleeve 21 by clamp cap 211 with described the first transmission shaft 22 with second driving shaft 23 is coaxial connects as one; Be equipped with respectively and the 3rd gear 221 of described the first gear 144 engagements and the 4th gear 231 that meshes with described the second gear 151 end of the end of described the first transmission shaft 22 and described second driving shaft 23.
The same rotation direction of worm screw of described the first worm screw group 14 and described the second worm screw group 15.
Described the first gear 144, the second gear 151, the 3rd gear 221 and the 4th gear 231 are helical gear.
Described the second casing 12 can be connected as a single entity with described the first casing 11, also can use separately.
Described the first worm screw group 14 and described the second worm screw group 15 adopt single-ended bi-directional axial orientation type location.
during the gap that disappears operation, unscrew the clamp cap on gear clamping sleeve 21, apply the gap torque that disappears of opposite direction on the first transmission shaft 22 and second driving shaft 23, the first gear 144 of the 3rd gear 221 by being installed on the first transmission shaft 22 ends and the first worm screw group 14 axle heads respectively, the second gear 151 that is installed on the 4th gear 231 of second driving shaft 23 ends and the second worm screw group 15 axle heads is realized the rotating in same direction of first worm screw group the 14 and second worm screw group 15, eliminate first worm screw group the 14 and second worm screw group 15 corresponding worm screw and worm gear 13 between the purpose of back clearance, screw clamp cap after eliminating, no matter by the forward and reverse rotation of Sports band load or the swing of the main shaft output of worm gear, and load center of gravity moment generation clockwise and anticlockwise changes, and not there will be ataxia or impacts concussion.
The described content of this specification embodiment is only enumerating the way of realization of model utility design; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also reaches the equivalent technologies means that design can be expected according to the utility model in those skilled in the art.
Claims (5)
1. the twin worm Worm gear mechanism machinery gap transmission device that disappears, it is characterized in that: comprise the twin worm Worm gear mechanism and the gap driving mechanism that disappears, described twin worm Worm gear mechanism comprises the first casing, the second casing, worm gear and the first worm screw group, the second worm screw group, and described worm gear is arranged in described the first casing; Described the first worm screw group, described the second worm screw group are arranged in parallel with described worm gear median plane, and the two ends of described the first worm screw group, described the second worm screw group are fixed on the first casing by corresponding bearing, a set of cups and end cap supporting respectively; The worm screw of described the first worm screw group consists of short worm shaft and jack shaft, and gap is left in the junction of described short worm shaft and described jack shaft; Described the first worm screw group is installed the first gear, the second gear by flat key respectively with the homonymy axle head of described the second worm screw group;
Bearing and bearing support that the described gap driving mechanism that disappears comprises the gear clamping sleeve, is distributed in the first transmission shaft, the second driving shaft of gear clamping sleeve both sides and supports corresponding the first transmission shaft and second driving shaft; Bearing support is fixed on the second casing; Described gear clamping sleeve by clamp cap with described the first transmission shaft with second driving shaft is coaxial connects as one; Be equipped with respectively and the 3rd gear of described the first gear engagement and the 4th gear that meshes with described the second gear the end of described the first transmission shaft and the end of described second driving shaft.
2. the twin worm Worm gear mechanism machinery as claimed in claim 1 gap transmission device that disappears, is characterized in that: the same rotation direction of worm screw that described the first worm screw group and described the second worm screw are organized.
3. the twin worm Worm gear mechanism machinery as claimed in claim 2 gap transmission device that disappears, it is characterized in that: described the first gear, the second gear, the 3rd gear and the 4th gear are helical gear.
4. the twin worm Worm gear mechanism machinery as claimed in claim 3 gap transmission device that disappears, it is characterized in that: described the second casing can be connected as a single entity with described the first casing, also can use separately.
5. the twin worm Worm gear mechanism machinery as claimed in claim 4 gap transmission device that disappears, it is characterized in that: described the first worm screw group and described the second worm screw group adopt single-ended bi-directional axial orientation type to locate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202342381U CN203285953U (en) | 2013-04-28 | 2013-04-28 | Mechanical gap removing transmission device with double-worm and worm gear mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202342381U CN203285953U (en) | 2013-04-28 | 2013-04-28 | Mechanical gap removing transmission device with double-worm and worm gear mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203285953U true CN203285953U (en) | 2013-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202342381U Withdrawn - After Issue CN203285953U (en) | 2013-04-28 | 2013-04-28 | Mechanical gap removing transmission device with double-worm and worm gear mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203285953U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234024A (en) * | 2013-04-28 | 2013-08-07 | 浙江工业大学 | Mechanical clearance-eliminating transmission device of double worm and worm gear mechanism |
| CN104948672A (en) * | 2015-07-01 | 2015-09-30 | 王烽 | Gapless worm gear worm rod speed reducer |
| CN109804179A (en) * | 2016-08-16 | 2019-05-24 | 路易斯·马里亚·安东内洛 | Gap is controlled or the gear reduction unit of zero clearance |
-
2013
- 2013-04-28 CN CN2013202342381U patent/CN203285953U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234024A (en) * | 2013-04-28 | 2013-08-07 | 浙江工业大学 | Mechanical clearance-eliminating transmission device of double worm and worm gear mechanism |
| CN103234024B (en) * | 2013-04-28 | 2015-09-16 | 浙江工业大学 | Twin worm Worm gear mechanism machinery disappears gap transmission device |
| CN104948672A (en) * | 2015-07-01 | 2015-09-30 | 王烽 | Gapless worm gear worm rod speed reducer |
| CN109804179A (en) * | 2016-08-16 | 2019-05-24 | 路易斯·马里亚·安东内洛 | Gap is controlled or the gear reduction unit of zero clearance |
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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: 20131113 Effective date of abandoning: 20150916 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20131113 Effective date of abandoning: 20150916 |
|
| RGAV | Abandon patent right to avoid regrant |