CN201162804Y - Worm gear apparatus capable of improving transmission accuracy - Google Patents
Worm gear apparatus capable of improving transmission accuracy Download PDFInfo
- Publication number
- CN201162804Y CN201162804Y CNU2008200185440U CN200820018544U CN201162804Y CN 201162804 Y CN201162804 Y CN 201162804Y CN U2008200185440 U CNU2008200185440 U CN U2008200185440U CN 200820018544 U CN200820018544 U CN 200820018544U CN 201162804 Y CN201162804 Y CN 201162804Y
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- worm gear
- scroll wheel
- gear
- scroll
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Abstract
The utility model discloses a worm gear device which can improve the transmission accuracy, and comprises a worm gear body. The worm gear body comprises a first half worm gear and a second half worm gear which are orderly arranged along the axle of the worm gear; the first half worm gear and the second half worm gear can relatively slide along the circle; one side of the second half worm gear is provided with a plurality of regulating pins which extend along the axle of the worm gear; the first half worm gear is provided with regulating holes corresponding to the regulating pins; the inside diameter of the regulating holes are more than the diameter of the regulating pins; each regulating pin passes through the corresponding regulating hole; an elastic regulating device is arranged between the regulating pins and the first half worm gear; a bearing is arranged between the first half worm gear and a gland, and between the first half worm gear and the second half worm gear. The worm gear device can guarantee the long-term sensitivity of interlocking teeth, reduce the abrasion, and further guarantee the transmission accuracy and stability of the worm gear transmission mechanism.
Description
Technical field
The utility model relates to a kind of gear transmission technology, especially relates to a kind of gear of the improved transmission accuracy when adopting worm drive.
Background technique
Worm gear in the known worm drive, mostly be to adopt a worm gear mode with worm meshing, worm drive adopts this mode, simple in structure, easy to use, the number of teeth that worm and wheel meshes simultaneously in transmission is less, along with the accumulation lengthening of operating time, back lash between the worm and worm gear can become greatly gradually, thereby its bearing capacity and transmission accuracy are lower.For solving this phenomenon, people adopt the whole worm gear be made up of the two halves worm gear and the mode of worm meshing, during by the two halves worm gear that is assembled together and worm meshing, the side set phenomenon that occurs between the two halves worm gear, backlash when eliminating the worm and worm wheel engagement, improving the bearing capacity and the transmission accuracy of worm drive, so this structure of worm gear at the ask for something calibration accurately and require to have on the reducing gear of self-locking character preferably and be widely used.But the said structure of worm gear in use for some time, owing to the reasons such as contact surface abrasion between the two halves worm gear, vertically relative position can change between the two halves worm gear, cause change with the worm meshing position, cause reducing of Surface of action, thereby cause to guarantee transmission accuracy for a long time.
Summary of the invention
Technical problem to be solved in the utility model has provided a kind of transmission accuracy that can guarantee Worm wheel transmission mechanism for a long time, the gear of the improved transmission accuracy that improved transmission sensitivity again simultaneously, reduces wear.
For solving the problems of the technologies described above, the technical solution of the utility model is: the gear that can improve transmission accuracy, comprise the worm gear body, described worm gear body comprises along worm-wheel shaft takes turns to first semi-scroll wheel, second semi-scroll that are arranged in order and are assembled together, can be along circumferential slide relative between described first semi-scroll wheel and second semi-scroll wheel; Described second semi-scroll take turns upwards be provided with in a side week some along the axially extended adjusting pin of worm gear, described first semi-scroll wheel is provided with each and regulates the adjustment hole of the corresponding respectively and internal diameter of pin greater than described adjusting pin diameter, described each adjusting pin passes corresponding adjustment hole respectively, is provided with the flexible adjustment device between described adjusting pin and described first semi-scroll wheel.
As a kind of improvement, the extension vertically of place, described second semi-scroll wheel axle center is provided with transmission shaft mounting hole seat, described transmission shaft mounting hole seat is fixedly connected with gland, and described first semi-scroll wheel is set on the transmission shaft mounting hole seat of gland between taking turns with second semi-scroll by gland.
As further improvement, be provided with bearing between described first semi-scroll wheel and second semi-scroll wheel.
As further improvement, be provided with bearing between described first semi-scroll wheel and the gland.
As further improvement, described flexible adjustment device is regulated the Regulation spring that is respectively equipped with between pin and first semi-scroll wheel for each.
The gear of the improved transmission accuracy of technique scheme, owing to be to have adopted the worm gear body, the worm gear body comprises along worm-wheel shaft takes turns to first semi-scroll wheel, second semi-scroll that are arranged in order and are assembled together, can be along circumferential slide relative between first semi-scroll wheel, second semi-scroll wheel; Second semi-scroll take turns upwards be provided with in a side week some along the axially extended adjusting pin of worm gear, first semi-scroll wheel is provided with each and regulates the corresponding respectively and internal diameter of pin greater than the adjustment hole of regulating the pin diameter, each is regulated pin and passes corresponding adjustment hole respectively, regulate between the pin and first semi-scroll wheel and be provided with the effect that the flexible adjustment device utilizes the flexible adjustment device, make by first semi-scroll and take turns, the worm gear that second semi-scroll wheel is assembled into is with the worm meshing transmission time, first semi-scroll wheel, all the time produce dislocation relatively between the gear teeth of second semi-scroll wheel, form the worm and gear transmission of side set structure, thereby can guarantee the transmission accuracy of Worm wheel transmission mechanism for a long time, improve transmission sensitivity.Employing is loaded on transmission shaft mounting hole seat upper type between gland and other the semi-scroll wheel by gland with half worm gear set, guarantees worm and gear when transmission, and the impacting force that gland produces can not make and produce axial relative displacement between the two halves worm gear, guarantees transmission accuracy.Be provided with bearing between first semi-scroll wheel, second semi-scroll wheel and between first semi-scroll wheel and the gland, the sliding friction that make between the semi-scroll wheel of winning, second semi-scroll wheel, original face contact formation between first semi-scroll wheel and the gland becomes rolling friction, avoided the two halves worm gear to cause the surface of contact between the sensitive inadequately and two halves worm gear of two halves worm gear circumferential side set can produce certain wearing and tearing, the phenomenon of reduction transmission accuracy along with the growth of operating time because of there is big frictional force in the face contact.The flexible adjustment device adopts each to regulate the Regulation spring that is respectively equipped with between pin and the semi-scroll wheel, and is simple in structure, easy to adjust.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
Fig. 1 is the structural representation that the utility model can improve the gear of transmission accuracy;
Fig. 2 be among Fig. 1 A-A to sectional view.
Embodiment
As depicted in figs. 1 and 2, can improve the gear of transmission accuracy, comprise a worm gear body 1, this worm gear body 1 is installed on the transmission shaft and worm screw 2 engagement driving.Worm gear body 1 comprise first semi-scroll wheel, 11, second semi-scroll wheel, 12, the first semi-scrolls wheel, 11, second semi-scroll wheel 12 that is assembled together along worm-wheel shaft to being arranged in order, and first semi-scroll wheel, 11 and second semi-scroll can be along its circumferential slide relative between taking turns 12; Wherein take turns and circumferentially be provided with some axially extended adjusting pins 13 on the 12 1 side sidewalls along worm gear at second semi-scroll, then be provided with on first semi-scroll wheel 11 with each and regulate the corresponding respectively adjustment hole 14 of pin 13, the internal diameter of adjustment hole 14 is greater than regulating pin 13 diameters, and each is regulated pin 13 and passes corresponding adjustment hole 14 respectively, like this, just can control first semi-scroll wheel 11 by adjustment hole 14 and the cooperation of regulating between the pin 13, the circumferentially displacement of slide relative between second semi-scroll wheel 12, and between adjusting pin 13 and first semi-scroll wheel 11, be provided with flexible adjustment device 15, regulate the Regulation spring that is respectively equipped with between pin 13 and first semi-scroll wheel 11 as each, effect by Regulation spring makes first semi-scroll wheel 11, the gear teeth between second semi-scroll wheel 12 produce relative dislocation all the time, thereby form the worm drive of side set structure, so that this worm drive can guarantee transmission accuracy for a long time.
As shown in Figure 2, first semi-scroll wheel 11, the assembling of second semi-scroll wheel 12 can be adopted and take turns place, 12 axle center at second semi-scroll and extend vertically and be provided with the transmission shaft mounting hole seat 4 that is used to install transmission shaft, and transmission shaft mounting hole seat 4 is fixedly connected with gland 5, first semi-scroll wheel 11 can adopt and be set on the transmission shaft mounting hole seat 4, and put and chip hold down is set on the transmission shaft mounting hole seat 4 between gland 5 and second semi-scroll wheel 12 by the retaining of gland 5, to guarantee that worm and gear is when the transmission, the impacting force that gland 5 produces can not make between first semi-scroll wheel, 11 and second semi-scroll wheel 12 and produce axial relative displacement, guarantees transmission accuracy.Can be at first semi-scroll wheel 11, be provided with bearing 3 between second semi-scroll wheel 12, also can between first semi-scroll wheel 11 and gland 5, be provided with bearing 3 simultaneously, so that between first semi-scroll wheel, 11 and second semi-scroll wheel 12, contact the sliding friction that forms by original face between first semi-scroll wheel 11 and the gland 5 and become rolling friction, avoided between first semi-scroll wheel, 11 and second semi-scroll wheel 12, because of contact to exist than frictional force greatly, face cause first semi-scroll to take turns 11 between first semi-scroll wheel 11 and the gland 5, second semi-scroll wheel 12 is sensitive inadequately at circumferential side set, and the surface of contact between the first semi-scroll wheel, 11 and second semi-scroll wheel 12 can produce certain wearing and tearing, the phenomenon of the precision of reduction transmission along with the growth of operating time.
Claims (5)
1, can improve the gear of transmission accuracy, comprise worm gear body (1), described worm gear body (1) comprises along worm-wheel shaft takes turns (12) to first semi-scroll wheel (11) that is arranged in order and is assembled together, second semi-scroll, it is characterized in that: can be along circumferential slide relative between described first semi-scroll wheel (11) and second semi-scroll wheel (12); Described second semi-scroll wheel upwards was provided with some along the axially extended adjusting pin of worm gear (13) in (12) one side weeks, described first semi-scroll wheel (11) is provided with each and regulates the corresponding respectively and internal diameter of pin (13) greater than the adjustment hole (14) of regulating pin (13) diameter, described each adjusting pin (13) passes corresponding adjustment hole (14) respectively, is provided with flexible adjustment device (15) between described adjusting pin (13) and first semi-scroll wheel (11).
2, the gear that improves transmission accuracy as claimed in claim 1, it is characterized in that: the extension vertically of place, described second semi-scroll wheel (12) axle center is provided with transmission shaft mounting hole seat (4), described transmission shaft mounting hole seat (4) is fixedly connected with gland (5), and described first semi-scroll wheel (11) is set in gland (5) and second semi-scroll by gland (5) and takes turns on the transmission shaft mounting hole seat (4) between (12).
3, the gear that improves transmission accuracy as claimed in claim 1 is characterized in that: be provided with bearing (3) between described first semi-scroll wheel (11) and second semi-scroll wheel (12).
4, the gear that improves transmission accuracy as claimed in claim 1 is characterized in that: be provided with bearing (3) between described first semi-scroll wheel (11) and the gland (5).
5, as each described gear that improves transmission accuracy in the claim 1 to 4, it is characterized in that: described flexible adjustment device (15) is regulated the Regulation spring that is respectively equipped with between pin (13) and first semi-scroll wheel (11) for each.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200185440U CN201162804Y (en) | 2008-03-03 | 2008-03-03 | Worm gear apparatus capable of improving transmission accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200185440U CN201162804Y (en) | 2008-03-03 | 2008-03-03 | Worm gear apparatus capable of improving transmission accuracy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201162804Y true CN201162804Y (en) | 2008-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200185440U Expired - Fee Related CN201162804Y (en) | 2008-03-03 | 2008-03-03 | Worm gear apparatus capable of improving transmission accuracy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201162804Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059702A (en) * | 2010-11-24 | 2011-05-18 | 哈尔滨工业大学 | Transmission mechanism of tail end manipulator of robot |
| CN102788134A (en) * | 2012-08-31 | 2012-11-21 | 南京启湘机电科技有限公司 | Device for eliminating meshing back lash of worm gear and worm and increasing output torque |
| CN105889418A (en) * | 2014-12-08 | 2016-08-24 | 吴小杰 | Hollow type zero-return-difference worm speed reducer of industrial robot |
| CN105927728A (en) * | 2016-06-21 | 2016-09-07 | 苏州华徕光电仪器有限公司 | Worm gear adjustable in gear gap |
| CN108194615A (en) * | 2018-03-09 | 2018-06-22 | 陕西理工大学 | A kind of precision worm couple disappears gap method |
-
2008
- 2008-03-03 CN CNU2008200185440U patent/CN201162804Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059702A (en) * | 2010-11-24 | 2011-05-18 | 哈尔滨工业大学 | Transmission mechanism of tail end manipulator of robot |
| CN102059702B (en) * | 2010-11-24 | 2012-07-04 | 哈尔滨工业大学 | Transmission mechanism of tail end manipulator of robot |
| CN102788134A (en) * | 2012-08-31 | 2012-11-21 | 南京启湘机电科技有限公司 | Device for eliminating meshing back lash of worm gear and worm and increasing output torque |
| CN105889418A (en) * | 2014-12-08 | 2016-08-24 | 吴小杰 | Hollow type zero-return-difference worm speed reducer of industrial robot |
| CN105927728A (en) * | 2016-06-21 | 2016-09-07 | 苏州华徕光电仪器有限公司 | Worm gear adjustable in gear gap |
| CN108194615A (en) * | 2018-03-09 | 2018-06-22 | 陕西理工大学 | A kind of precision worm couple disappears gap method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20081210 Termination date: 20100303 |