CN203176290U - Back-clearance-free screw roller reducer - Google Patents
Back-clearance-free screw roller reducer Download PDFInfo
- Publication number
- CN203176290U CN203176290U CN 201320196264 CN201320196264U CN203176290U CN 203176290 U CN203176290 U CN 203176290U CN 201320196264 CN201320196264 CN 201320196264 CN 201320196264 U CN201320196264 U CN 201320196264U CN 203176290 U CN203176290 U CN 203176290U
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- driven wheel
- disk driven
- roller
- screw rod
- screw
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Abstract
The utility model discloses a back-clearance-free screw roller reducer which comprises a screw and disc driven wheels matched with the screw. Rectangular teeth with different intervals are arranged on the screw. The disc driven wheels comprise a first disc driven wheel and a second disc driven wheel, wherein the first disc driven wheel and the second disc driven wheel are mutually matched and installed on the same rotating shaft, the first disc driven wheel and the second disc driven wheel are provided with corresponding first rollers and second rollers respectively, and the rectangular teeth on the screw are embedded between the first rollers and the second rollers. The second disc driven wheel is installed on the rotating shaft in an adjustable assembling mode, so that the first rollers and the second rollers are fit with surfaces of the rectangular teeth in the screw, and back-clearance-free transmission is formed between the screw and the disc driven wheels. Therefore, the screw and the disc driven wheels are stable in transmission and high in transmission accuracy. Additionally, friction between the screw and the disc driven wheels is rolling friction, so that the back-clearance-free screw roller reducer is low in heating amount and high in transmission efficiency.
Description
Technical field:
The utility model relates to the transmission device technical field, refers in particular to a kind of no back clearance screw rod roller retarder.
Background technique:
Worm type of reduction gearing plays coupling rotating speed and transmitting torque between prime mover and working machine or actuator, use very extensive in modern mechanical.The main feature of worm type of reduction gearing is to have reverse auto-lock function, and bigger reduction speed ratio can be arranged, and input shaft and output shaft be not on same axis, also not at grade.But general volume is bigger, and transmission efficiency is not high, and precision is not high.
Existing numerical control machine tool retarder generally adopts worm type of reduction gearing, and the worm and gear drive part in the retarder all adopts traditional structural design, and such structure can't guarantee the highi degree of accuracy transmission of numerical control machine tool.Referring to shown in Figure 1, be common worm type of reduction gearing, it comprises that generally worm gear 3 reaches in the worm screw 4 that cooperates with worm gear 3, the spiral tooth 41 that this worm screw 4 is provided with, and the outer periphery of worm gear 3 is equipped with a plurality of grooves 31 that cooperate with spiral tooth 41 on the worm screw 4, between this worm screw 4 and the worm gear 3 by the spiral tooth 41 realization transmission that matches with groove 31.
There is following deficiency in above-mentioned worm type of reduction gearing: 1, since between the worm and worm wheel by the realization transmission that matches with groove of spiral tooth, be that worm and worm wheel produce slip relatively, direct friction between it, the heat of generation is comparatively serious, so also has a strong impact on the efficient of transmission.2, along with the long-term use of retarder, wearing and tearing can appear in the spiral tooth of the groove of worm gear and worm screw, can cause that like this drive gap (being back clearance) becomes big, because worm and gear engagement interdental space can not be revised during retarder work, namely can not revise back clearance, influenced the retarder transmission accuracy, and then the machining accuracy when having influenced the numerical control machine tool processed product, quality of product reduced.
The model utility content:
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of no back clearance screw rod roller retarder is provided.
In order to solve the problems of the technologies described above, the utility model has adopted following technical proposals: this no back clearance screw rod roller retarder comprises: screw rod and the disk driven wheel that cooperates with this screw rod, this screw rod is provided with not equidistant rectangle tooth, described disk driven wheel comprises: cooperatively interact and be installed on the first disk driven wheel and the second disk driven wheel in the same rotating shaft, this first disk driven wheel is respectively arranged with the first corresponding roller and second roller with the second disk driven wheel, rectangle tooth on the screw rod is embedded between this first roller and second roller, wherein, the second disk driven wheel is installed in the described rotating shaft in adjustable assembling mode, make first roller and second roller all the time with screw rod in the facing of rectangle tooth fit, make the no back clearance transmission of formation all the time between screw rod and the disk driven wheel.
Furthermore, in the technique scheme, form stable the connection by sleeve fitted bolt and nut between the described first disk driven wheel and the second disk driven wheel, wherein, the sleeve two ends are inconsistent with the first disk driven wheel and the second disk driven wheel respectively.
Furthermore, in the technique scheme, be provided with first perforation that several pass for described bolt in the described first disk driven wheel, be provided with arcs perforation that several pass for described bolt in the described second disk driven wheel, make the second disk driven wheel can adjust relative position with the first disk driven wheel.
Furthermore, in the technique scheme, first roller in the described first disk driven wheel and second roller in the second disk driven wheel are interspersed, and form the space of closely conflicting for rectangle tooth in the screw rod between the first adjacent roller and second roller.
After adopting technique scheme, the utility model has following beneficial effect compared with prior art:
1, the screw rod in the utility model is embedded between first roller and second roller in the second disk driven wheel in the first disk driven wheel by the rectangle tooth, and this second disk driven wheel can be adjusted the relative position with the first disk driven wheel, make first roller and second roller all the time respectively with screw rod in the facing of rectangle tooth fit, to such an extent as to form no back clearance transmission between screw rod and the disk driven wheel all the time, make more stable transmission between screw rod and the disk driven wheel, to improve transmission accuracy of the present utility model and transmission efficiency.After causing wearing and tearing, can pass through to adjust the relative position of the second disk driven wheel and the first disk driven wheel when long-time use of the utility model, making the back clearance readjustment between screw rod and the second disk driven wheel and the first disk driven wheel is 0.
2, owing to be rolling friction between screw rod and the disk driven wheel, its heating value is few, the transmission efficiency height.In addition, it is simple that the utility model also has making, the advantage that assembly precision is high.
Description of drawings:
Fig. 1 is the stereogram of common worm type of reduction gearing;
Fig. 2 is stereogram of the present utility model;
Fig. 3 is the stereogram at another visual angle of the utility model;
Fig. 4 is three-dimensional exploded view of the present utility model;
1 screw rod, 11 rectangle teeth
2 disk driven wheels, 21 first disk driven wheels
212 first perforation of 211 first rollers
22 second disk driven wheels, 221 second rollers
23 rotating shafts of boring a hole of 222 arcs
24 sleeves, 25 bolts
26 nuts, 3 worm gears
31 grooves, 4 worm screws
41 spiral teeth
Embodiment:
Below in conjunction with specific embodiments and the drawings the utility model is further specified.
Shown in Fig. 2-4, no back clearance screw rod roller retarder, it comprises: screw rod 1 and the disk driven wheel 2 that cooperates with this screw rod 1.
Described screw rod 1 is provided with not equidistant rectangle tooth 11.
Described disk driven wheel 2 comprises: cooperatively interact and be installed on the first disk driven wheel 21 and the second disk driven wheel 22 in the same rotating shaft 23, wherein, the second disk driven wheel 22 is installed in the described rotating shaft 23 in adjustable assembling mode, and this first disk driven wheel 21 is respectively arranged with the first corresponding roller 211 and second roller 221 with the second disk driven wheel 22.
Described screw rod 1 is embedded in the described first disk driven wheel 21 in first roller 211 and the second disk driven wheel 22 between second roller 221 by rectangle tooth 11, to form stable cooperating with disk driven wheel 2, wherein, because the second disk driven wheel 22 can be adjusted the position with respect to the first disk driven wheel 21, make first roller 211 and second roller 221 all the time with screw rod 1 in the facing of rectangle tooth 11 fit, can make the no back clearance transmission of formation all the time between screw rod 1 and the disk driven wheel 2.
Particularly, form stable the connection by sleeve 24 fitted bolts 25 and nut 26 between the described first disk driven wheel 21 and the second disk driven wheel 22, wherein, sleeve 24 two ends are inconsistent with the first disk driven wheel 21 and the second disk driven wheel 22 respectively.Be provided with several in the described first disk driven wheel 21 for first perforation 212 that described bolt 25 passes, be provided with the arc perforation 222 that several pass for described bolt 25 in the described second disk driven wheel 22.When unclamping nut 26, can adjust the second disk driven wheel 22 with respect to the position of the first disk driven wheel 21, when fastening nut 26, the second disk driven wheel 22 and the first disk driven wheel, 21 relative fixed, and realize rotating synchronously.
After long-term the use, first roller 211 in the rectangle tooth 11 of screw rod 1 and the first disk driven wheel 21 and second roller 221 in the second disk driven wheel 22 may produce back clearance, at this moment, when unclamping nut 26, can adjust the second disk driven wheel 22 with respect to the position of the first disk driven wheel 21, make first roller 211 and second roller 212 respectively with screw rod 1 in the facing of rectangle tooth 11 fit again, fastening nut 26 gets final product then.Can make the 2 no back clearance transmissions of formation all the time between screw rod 1 and the disk driven wheel like this, make more stable transmission between screw rod and the disk driven wheel, to improve transmission accuracy of the present utility model and transmission efficiency.In addition, owing to be rolling friction between screw rod and the disk driven wheel, its heating value is few, the transmission efficiency height.
Certainly, the above only is specific embodiment of the utility model, be not to limit the utility model practical range, all equivalences of doing according to the described structure of the utility model claim, feature and principle change or modify, and all should be included in the utility model claim.
Claims (4)
1. there is not back clearance screw rod roller retarder, it comprises: screw rod (1) and the disk driven wheel (2) that cooperates with this screw rod (1), this screw rod (1) is provided with not equidistant rectangle tooth (11), it is characterized in that: described disk driven wheel (2) comprising: cooperatively interact and be installed on the first disk driven wheel (21) and the second disk driven wheel (22) in the same rotating shaft (23), this first disk driven wheel (21) is respectively arranged with corresponding first roller (211) and second roller (221) with the second disk driven wheel (22), rectangle tooth (11) on the screw rod (1) is embedded between this first roller (211) and second roller (221), wherein, the second disk driven wheel (22) is installed in the described rotating shaft (23) in adjustable assembling mode, make first roller (211) and second roller (221) fit with the both sides facing of the middle rectangle tooth (11) of screw rod (1) all the time, make and form no back clearance transmission between screw rod (1) and the disk driven wheel (2) all the time.
2. no back clearance screw rod roller retarder according to claim 1, it is characterized in that: form stable the connection by sleeve (24) fitted bolt (25) and nut (26) between the described first disk driven wheel (21) and the second disk driven wheel (22), wherein, sleeve (24) two ends are inconsistent with the first disk driven wheel (21) and the second disk driven wheel (22) respectively.
3. no back clearance screw rod roller retarder according to claim 1, it is characterized in that: be provided with first perforation (212) that several pass for described bolt (25) in the described first disk driven wheel (21), be provided with several in the described second disk driven wheel (22) for arcs perforation (222) that described bolts (25) pass, make the second disk driven wheel (22) can adjust relative position with the first disk driven wheel (21).
4. no back clearance screw rod roller retarder according to claim 1, it is characterized in that: first roller (211) in the described first disk driven wheel (21) and second roller (221) in the second disk driven wheel (22) are interspersed, and form the space of closely conflicting for rectangle tooth (11) in the screw rod (1) between adjacent first roller (211) and second roller (221).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320196264 CN203176290U (en) | 2013-04-17 | 2013-04-17 | Back-clearance-free screw roller reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320196264 CN203176290U (en) | 2013-04-17 | 2013-04-17 | Back-clearance-free screw roller reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203176290U true CN203176290U (en) | 2013-09-04 |
Family
ID=49072990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320196264 Expired - Fee Related CN203176290U (en) | 2013-04-17 | 2013-04-17 | Back-clearance-free screw roller reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203176290U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105730504A (en) * | 2016-03-22 | 2016-07-06 | 东莞市亚美精密机械配件有限公司 | Automated guided vehicle (AGV) robot mobile platform and wheel driving mechanisms thereof |
| CN108317222A (en) * | 2018-04-16 | 2018-07-24 | 暨伟 | A kind of screw rod cylinder wheel decelerator and its screw machining method |
| TWI704309B (en) * | 2019-04-30 | 2020-09-11 | 邱垂財 | Double-row roller cam transmission device with a backlash adjusting device |
| CN113958673A (en) * | 2020-07-20 | 2022-01-21 | 邱垂财 | Non-backlash double-row roller cam transmission device |
| TWI823016B (en) * | 2020-07-15 | 2023-11-21 | 邱垂財 | Nonbacklash double-row roller cam transmission device |
-
2013
- 2013-04-17 CN CN 201320196264 patent/CN203176290U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105730504A (en) * | 2016-03-22 | 2016-07-06 | 东莞市亚美精密机械配件有限公司 | Automated guided vehicle (AGV) robot mobile platform and wheel driving mechanisms thereof |
| CN108317222A (en) * | 2018-04-16 | 2018-07-24 | 暨伟 | A kind of screw rod cylinder wheel decelerator and its screw machining method |
| CN108317222B (en) * | 2018-04-16 | 2024-08-20 | 暨伟 | Screw rod cylindrical wheel speed reducer and screw rod processing method thereof |
| TWI704309B (en) * | 2019-04-30 | 2020-09-11 | 邱垂財 | Double-row roller cam transmission device with a backlash adjusting device |
| TWI823016B (en) * | 2020-07-15 | 2023-11-21 | 邱垂財 | Nonbacklash double-row roller cam transmission device |
| CN113958673A (en) * | 2020-07-20 | 2022-01-21 | 邱垂财 | Non-backlash double-row roller cam transmission device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |