CN1948784A - Rolling type zero lash worm gear driving device - Google Patents
Rolling type zero lash worm gear driving device Download PDFInfo
- Publication number
- CN1948784A CN1948784A CN 200610144059 CN200610144059A CN1948784A CN 1948784 A CN1948784 A CN 1948784A CN 200610144059 CN200610144059 CN 200610144059 CN 200610144059 A CN200610144059 A CN 200610144059A CN 1948784 A CN1948784 A CN 1948784A
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- wheel body
- roller
- driving device
- worm gear
- gear driving
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Abstract
The invention comprises a round wheel body sleeved on a worm-wheel shaft and a screw disposed at one end of the peripheral surface of the wheel body. On the peripheral surface of the wheel body are disposed several rollers arranged in two rings. The peripheral surfaces of the front ring rollers are separately close to the left working side of the screw thread and there is a clearance between the peripheral surface of the front ring rollers and the right working side of the screw thread. The peripheral surface of the back front rollers are separately close to the right working side of the screw thread and there is a clearance between the peripheral surfaces of the back ring rollers and the left working side of the screw thread.
Description
Technical field
The present invention relates to a kind of rolling type zero lash worm gear driving device.
Background technique
The worm and gear transmission has advantages such as velocity ratio is big, compact structure, but because the gear motion of worm and gear transmission is to adopt sliding movement, cause the transmission efficiency of worm and gear transmission lower, energy loss is bigger, wearing and tearing to worm gear are also comparatively serious, cause the design speed of worm and gear transmission also lower thus.In addition, because the gear motion of worm and gear transmission exists the commutation gap, cause transmission accuracy lower.
Summary of the invention
The object of the present invention is to provide a kind of transmission accuracy height, surface friction drag is little, transmission efficiency height, the rolling type zero lash worm gear driving device that transmission speed is big.
Rolling type zero lash worm gear driving device of the present invention, comprise the wheel body that is sleeved on the circle on the worm-wheel shaft, one end of wheel body circumferential surface can be provided with screw rod rotationally, it is characterized in that on the circumference of described wheel body, being provided with a plurality of rollers rotationally, before roller is, back two circle concentrics evenly distribute, before, the axis of each roller of back two circles and wheel body have an angle α between radially, angle α points to the outer end of the circumferential surface of wheel body, angle β between the adjacent rollers axis on the same circle is equal to each other, the circumferential surface of preceding circle roller pastes mutually with the work side, a left side of screw flight respectively, before the circumferential surface of circle roller have the gap with work side, the right side of screw flight respectively, the circumferential surface of back circle roller pastes mutually with the work side, the right side of screw flight respectively, and there is the gap in the circumferential surface of back circle roller with the work side, a left side of screw flight respectively.
Rolling type zero lash worm gear driving device of the present invention, wherein said wheel body is made of forward and backward wheel body assembling, described roller adopts roller shaft to be installed on the forward and backward wheel body respectively, and the axis of each roller of forward and backward two circles and the wheel body angle α between radially is equal to each other.
Rolling type zero lash worm gear driving device of the present invention, wherein said roller are cylindrical, and roller adopts Bearing Installation on described roller shaft, and the Normal section of screw flight groove is a rectangle.
Rolling type zero lash worm gear driving device of the present invention adopts the annular boss location that mates with each other on the surface that wherein said forward and backward wheel body pastes mutually, forward and backward wheel body adopts a plurality of screw to link to each other.
Rolling type zero lash worm gear driving device of the present invention, an end of wherein said screw rod links to each other with the output shaft of motor or directly links to each other with the output shaft of motor by the toothed belt transmission.
Rolling type zero lash worm gear driving device of the present invention, wherein the bottom of each described roller shaft is adopted respectively and is threaded and axis hole cooperation location.
Rolling type zero lash worm gear driving device of the present invention in use, when screw rod is made clockwise direction or is counterclockwise rotated, because the circumferential surface of preceding circle roller pastes mutually with the work side, a left side of screw flight respectively, before the circumferential surface of circle roller have the gap with work side, the right side of screw flight respectively, the circumferential surface of back circle roller pastes mutually with the work side, the right side of screw flight respectively, there is the gap in the circumferential surface of back circle roller with the work side, a left side of screw flight respectively, before so work side, the left side of screw flight and right work side can alternately promote when screw rod is made clockwise direction or counterclockwise rotated, the roller of back two circles, and the gap that when the commutation transmission, does not have gear motion, compare with existing worm and gear transmission, rolling type zero lash worm gear driving device of the present invention has the transmission accuracy height, surface friction drag is little, the transmission efficiency height, the characteristics that transmission speed is big.So high precision turning round equipment such as the rotary table of the especially suitable high-precision machining center of those needs of rolling type zero lash worm gear driving device of the present invention, numerical control rotating platform use.
Other details of rolling type zero lash worm gear driving device of the present invention and characteristics can just can be cheer and bright by reading the embodiment hereinafter encyclopaedize in conjunction with the accompanying drawings.
Description of drawings
Fig. 1 is the plan view of structural representation of a kind of mode of execution of rolling type zero lash worm gear driving device of the present invention;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the plan view of structural representation of the another kind of mode of execution of rolling type zero lash worm gear driving device of the present invention;
Fig. 4 is the side view of Fig. 3.
Embodiment
As Fig. 1, Fig. 2 and Fig. 3, shown in Figure 4, rolling type zero lash worm gear driving device of the present invention, comprise the wheel body 1 that is sleeved on the circle on the worm-wheel shaft 10, an end of wheel body 1 circumferential surface can be provided with screw rod 2 rotationally, and an end of screw rod 2 links to each other with motor by gear transmission or sprocket driving.On the circumference of wheel body 1, can be provided with a plurality of rollers 3 rotationally, before roller 3 is, back two circle concentrics evenly distribute, before, the axis of each roller 3 of back two circles and wheel body 1 have an angle α between radially, the axis of each roller 3 and wheel body 1 radially between angle α be equal to each other, angle α points to the outer end of the circumferential surface of wheel body 1, angle β between adjacent rollers 3 axis on the same circle is equal to each other, the circumferential surface of preceding circle roller 3 pastes mutually with the work side 5, a left side of screw rod 2 screw threads respectively, before the circumferential surface of circle roller 3 have the gap with work side 6, the right side of screw rod 2 screw threads respectively, the circumferential surface of back circle roller 3 pastes mutually with the work side 6, the right side of screw rod 2 screw threads respectively, and there is the gap in the circumferential surface of back circle roller 3 with the side 5 of working, the left side of screw rod 2 screw threads respectively.
The difference with Fig. 3, mode of execution shown in Figure 4 of Fig. 1, mode of execution shown in Figure 2 is that the structure of annular boss on the surface that forward and backward wheel body 7,8 pastes mutually is different, and the structure of other parts is basic identical.
Rolling type zero lash worm gear driving device of the present invention can link to each other an end of screw rod 2 or directly link to each other with the output shaft of motor by the toothed belt transmission in use with the output shaft of motor.When screw rod 2 is made clockwise direction or is counterclockwise rotated, because the circumferential surface of preceding circle roller 3 pastes mutually with the work side 5, a left side of screw rod 2 screw threads respectively, before the circumferential surface of circle roller 3 have the gap with work side 6, the right side of screw rod 2 screw threads respectively, the circumferential surface of back circle roller 3 pastes mutually with the work side 6, the right side of screw rod 2 screw threads respectively, there is the gap in the circumferential surface of back circle roller 3 with the work side 5, a left side of screw rod 2 screw threads respectively, before so work side, the left side of the screw thread of screw rod 25 and right work side 6 can alternately promote when screw rod 2 is made clockwise direction or counterclockwise rotated, the roller 3 of back two circles, and the gap that when the commutation transmission, does not have gear motion, thereby the feasible mechanical transmission precision of the machine tool of rolling type zero lash worm gear driving device of the present invention of using greatly improves, and surface friction drag reduces.
Embodiment recited above is described preferred implementation of the present invention; be not that design of the present invention and scope are limited; do not breaking away under the design concept prerequisite of the present invention; common engineers and technicians make technological scheme of the present invention in related domain various modification and improvement; all should fall into protection scope of the present invention; the technology contents that the present invention asks for protection all is documented in claims.
Claims (6)
1. rolling type zero lash worm gear driving device, comprise the wheel body (1) that is sleeved on the circle on the worm-wheel shaft (10), one end of wheel body (1) circumferential surface can be provided with screw rod (2) rotationally, it is characterized in that on the circumference of described wheel body (1), being provided with a plurality of rollers (3) rotationally, before roller (3) is, back two circle concentrics evenly distribute, before, the axis of each roller (3) of back two circles and wheel body (1) have an angle α between radially, angle α points to the outer end of the circumferential surface of wheel body (1), angle β between adjacent rollers on the same circle (3) axis is equal to each other, the circumferential surface of preceding circle roller (3) pastes mutually with the work side, a left side (5) of screw rod (2) screw thread respectively, before the circumferential surface of circle roller (3) have the gap with work side, the right side of screw rod (2) screw thread (6) respectively, the circumferential surface of back circle roller (3) pastes mutually with the work side, the right side (6) of screw rod (2) screw thread respectively, and there is the gap in the circumferential surface of back circle roller (3) with the side (5) of working, the left side of screw rod (2) screw thread respectively.
2. rolling type zero lash worm gear driving device according to claim 1, it is characterized in that described wheel body (1) is made of forward and backward wheel body (7,8) assembling, described roller (3) adopts roller shaft (9) to be installed on the forward and backward wheel body (7,8) respectively, and the axis of each roller (3) of forward and backward two circles and wheel body (1) the angle α between radially is equal to each other.
3. rolling type zero lash worm gear driving device according to claim 1 and 2 is characterized in that described roller (3) for cylindrical, and roller (3) adopts Bearing Installation on described roller shaft (9), and the Normal section of the thread groove of screw rod (2) is a rectangle.
4. rolling type zero lash worm gear driving device according to claim 3 is characterized in that adopting the annular boss location that mates with each other on the surface that described forward and backward wheel body (7,8) pastes mutually, and forward and backward wheel body (7,8) adopts a plurality of screw to link to each other.
5. rolling type zero lash worm gear driving device according to claim 4 is characterized in that an end of described screw rod (2) links to each other with the output shaft of motor or directly links to each other with the output shaft of motor by the toothed belt transmission.
6. rolling type zero lash worm gear driving device according to claim 5, the bottom that it is characterized in that each described roller shaft (2) adopt respectively and are threaded and axis hole cooperates the location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610144059 CN1948784A (en) | 2006-11-24 | 2006-11-24 | Rolling type zero lash worm gear driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610144059 CN1948784A (en) | 2006-11-24 | 2006-11-24 | Rolling type zero lash worm gear driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1948784A true CN1948784A (en) | 2007-04-18 |
Family
ID=38018372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610144059 Pending CN1948784A (en) | 2006-11-24 | 2006-11-24 | Rolling type zero lash worm gear driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1948784A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104148953A (en) * | 2014-07-14 | 2014-11-19 | 武汉市黄陂新隆建筑机械有限公司 | Ultrahigh-precision positioning rotary worktable with zero-clearance cam and worm transmission effect |
| CN108468777A (en) * | 2018-04-27 | 2018-08-31 | 邱垂财 | Roller cam mechanism |
| CN110242704A (en) * | 2019-06-17 | 2019-09-17 | 成都中良川工科技有限公司 | A kind of transmission device and its drive method based on rolling friction |
-
2006
- 2006-11-24 CN CN 200610144059 patent/CN1948784A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104148953A (en) * | 2014-07-14 | 2014-11-19 | 武汉市黄陂新隆建筑机械有限公司 | Ultrahigh-precision positioning rotary worktable with zero-clearance cam and worm transmission effect |
| CN104148953B (en) * | 2014-07-14 | 2016-09-07 | 武汉市黄陂新隆建筑机械有限公司 | A kind of superhigh precision location rotary table of gapless cam worm-drive |
| CN108468777A (en) * | 2018-04-27 | 2018-08-31 | 邱垂财 | Roller cam mechanism |
| CN108468777B (en) * | 2018-04-27 | 2022-01-14 | 邱垂财 | Roller cam mechanism |
| CN110242704A (en) * | 2019-06-17 | 2019-09-17 | 成都中良川工科技有限公司 | A kind of transmission device and its drive method based on rolling friction |
| CN110242704B (en) * | 2019-06-17 | 2021-10-22 | 成都中良川工科技有限公司 | Rolling friction-based transmission device and transmission method thereof |
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