CN2856590Y - Two-rack anti-backlash system - Google Patents
Two-rack anti-backlash system Download PDFInfo
- Publication number
- CN2856590Y CN2856590Y CN 200520105834 CN200520105834U CN2856590Y CN 2856590 Y CN2856590 Y CN 2856590Y CN 200520105834 CN200520105834 CN 200520105834 CN 200520105834 U CN200520105834 U CN 200520105834U CN 2856590 Y CN2856590 Y CN 2856590Y
- Authority
- CN
- China
- Prior art keywords
- shaft
- group
- tooth rod
- transmission
- secondary gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Transmission Devices (AREA)
- Gear Transmission (AREA)
Abstract
This utility model relates to a double rack gap eliminating system which realizes long stroke lathe precise longitudinal transmission. The system comprises a motor shaft, a decelerating shaft, a transmission shaft, two groups of two-step gear shafts, two tooth rod shafts and cylindrical gears fixed on each shaft. Between the motor shaft and the decelerating shaft, between the transmission shaft and the two groups of two-step gear shafts, between the two groups of two-step gear shafts and the two tooth rod shafts are connected with cylindrical gears. Transmission helical gears of same module and gear number, opposite rotating directions are respectively fixed at both ends of the transmission shaft. The transmission helical gears are respectively connected with a tooth rod shaft via the cylindrical gears fixed on one group of two-step gear shafts. Gap eliminating gears are fixed at outer end of the two tooth rod shafts. A butterfly spring is movably fixed on one end of the transmission shaft, and at the outer end of the butterfly spring is fixed with a screw nut gland. The gap eliminating system provided can eliminate forward and reverse rotation gap, ensure precise transmission and has advantages of reliable performance, good applicability, simple structure, convenient adjusting, appropriate price and high performance price ratio.
Description
Technical field the utility model relates to a kind of lathe longitudinal feeding device, particularly a kind ofly can realize the accurately vertically double rack of the transmission slot sytem that disappears of long stroke lathe.
Background technique mainly contains ball-screw nut transmission, static pressure nut transmission in the traditional lathe feeding transmission system.Its rigidity of ball-screw nut transmission is relatively poor, is mainly used in the lathe of stroke than weak point, if it is used in the long lathe of stroke, is easy to generate bending deflection in the middle part of its amount of deflection increase leading screw of lengthening along with leading screw, causes not reaching transmission accuracy.Though static pressure nut tooth bar is not for having wearing and tearing, the transmission of no gap, it is a high value added product, the cost height.
Model utility content the technical problems to be solved in the utility model is to provide a kind of double rack that is applicable to the vertical transmission of long stroke lathe feeding slot sytem that disappears, this slot sytem that disappears can be eliminated the forward and backward gap, the assurance transmission is accurate, rigidity and technology capability are good, easy to adjust, price is suitable, the price performance height.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of double rack slot sytem that disappears is characterized in that: it is made up of motor shaft, deceleration axis, force transmission shaft, two groups of secondary gear axles, two tooth rod shafts and the stud wheel that is fixed with on each; Between motor shaft and the deceleration axis, between deceleration axis and the force transmission shaft, between force transmission shaft and the two groups of secondary gear axles, be connected by stud wheel between two groups of secondary gear axles and two tooth rod shafts, the force transmission shaft two ends are fixed with the power transmission helical gear that modulus gear is identical, rotation direction is opposite respectively, the stud wheel that the power transmission helical gear is equipped with on one group of secondary gear axle respectively is connected with a tooth rod shaft, and two tooth rod shaft outer ends are fixed with clearance elimination gear; One end of force transmission shaft is movably installed with the butterfly spring, and butterfly spring outer end is movably installed with the nut gland.
The utility model is in existing lathe feeding transmission system, and the engagement that double rack and lathe bed tooth bar are replaced by in common ball-screw nut transmission realizes the purpose of transmission.Compare with common ball-screw nut transmission, the utility model in transmission process, can be eliminated the two-way gap of forward and backward because of taking the engagement of double rack and lathe bed tooth bar, remedies the deficiency of ball-screw nut transmission stiffness difference; The numerical control location be can adopt,, reliable performance, applicability advantage strong, simple in structure, easy to adjust the utlity model has to guarantee the transmission highi degree of accuracy; Improved the overall performance of lathe, the longitudinal feeding device that is specially adapted to heavy horizontal lathe is used.Compare with the female tooth bar of static pressure snail, it is suitable to have price, the advantage that price performance is high.
Appended drawings is the structure unfolded drawing that the utility model is used for the heavy horizontal lathe length feed.
Among the figure: 1-motor, 2-butterfly spring, 3-nut gland, 4-motor shaft, 5-deceleration axis, 6-force transmission shaft, first group of secondary gear axle of 7-, the positive rotating shaft of 701-, second group of secondary gear axle of 8-, 801-reversing shaft; 9-first tooth rod shaft, 10-second tooth rod shaft, 11-lathe bed tooth bar, first pair of stud wheel of Z1, Z2-, second pair of stud wheel of Z3, Z4-, Z5, Z6-power transmission helical gear, Z7, Z8-power transmission driven wheel, first group of secondary gear of Z9, Z11-, second group of secondary gear of Z10, Z12-, Z13, Z14-change pulley, Z15, Z16-tooth rod gear, Z17, Z18-clearance elimination gear.
Embodiment is as shown in the figure: a kind of double rack slot sytem that disappears, by lathe bed tooth bar 11, motor shaft 4, deceleration axis 5, force transmission shaft 6, first, second group secondary gear axle 7,8, first, second tooth rod shaft 9,10 and the stud wheel that is fixed with on each are formed; Motor shaft 4 is connected with motor 1, between motor shaft 4 and the deceleration axis 5 by first couple of stud wheel Z1, Z2 connects, between deceleration axis 5 and the force transmission shaft 6 by second couple of stud wheel Z3, Z4 connects, be connected with power transmission driven wheel Z7 by power transmission helical gear Z5 between force transmission shaft 6 and the first group of secondary gear axle, be connected with power transmission driven wheel Z8 by power transmission helical gear Z6 between force transmission shaft 6 and the second group of secondary gear axle, between the diaxon of first group of secondary gear axle 7 by first group of secondary gear Z9, Z11 connects, between the diaxon of second group of secondary gear axle 8 by second group of secondary gear Z10, Z12 connects, is connected with tooth rod gear Z15 by change pulley Z13 between the driven axle of first group of secondary gear axle 7 and first tooth rod shaft 9, is connected with the excellent gear Z16 of tooth by change pulley Z14 between the driven axle of second group of secondary gear axle 8 and second tooth rod shaft 10; First tooth rod shaft, 9 outer ends are fixed with clearance elimination gear Z17, second tooth rod shaft, 10 outer ends are fixed with clearance elimination gear Z18, and clearance elimination gear Z17, Z18 join with 11 engagements of two lathe bed tooth bars respectively; One end of force transmission shaft 6 is movably installed with butterfly spring 2, and butterfly spring 2 outer ends are movably installed with nut gland 3.
The crack principle that disappears of the present utility model is by screwing the nut gland 3 on force transmission shaft 6 tops, compressing dish spring 2, make force transmission shaft 6 produce certain axial displacement, utilize again that 6 of force transmission shafts are gone up a pair of numbers of teeth, modulus is identical but power transmission helical gear Z5, Z6 that rotation direction is opposite make positive rotating shaft 701 rotate to two opposite directions with reversing shaft 801.Reach the purpose in the crack that disappears with this.
Claims (2)
1, a kind of double rack slot sytem that disappears, it is characterized in that: it is made up of motor shaft (4), deceleration axis (5), force transmission shaft (6), two groups of secondary gear axles (7,8), two tooth rod shafts (9,10) and the stud wheel that is fixed with on each; Between described motor shaft (4) and the described deceleration axis (5), between described deceleration axis (5) and the described force transmission shaft (6), described force transmission shaft (6) and described two groups of secondary gear axles (7,8) between, described two groups of secondary gear axles (7,8) with described two tooth rod shafts (9,10) connect by stud wheel between, it is identical that described force transmission shaft (6) two ends are fixed with modulus gear respectively, power transmission helical gear (the Z5 that rotation direction is opposite, Z6), described power transmission helical gear (Z5, Z6) stud wheel that is equipped with on one group of secondary gear axle respectively is connected with a tooth rod shaft, described two tooth rod shafts (9,10) outer end is fixed with clearance elimination gear (Z17, Z18); One end of described force transmission shaft (6) is movably installed with butterfly spring (2), and described butterfly spring (2) outer end is movably installed with nut gland (3).
2, a kind of double rack as claimed in claim 1 slot sytem that disappears, it is characterized in that: between described motor shaft (4) and the described deceleration axis (5) by first couple of stud wheel (Z1, Z2) connect, between described deceleration axis (5) and the described force transmission shaft (6) by second couple of stud wheel (Z3, Z4) connect, be connected with power transmission driven wheel (Z7) by power transmission helical gear (Z5) between described force transmission shaft (6) and the first group of secondary gear axle (7), be connected with power transmission driven wheel (Z8) by described power transmission helical gear (Z6) between described force transmission shaft (6) and the described second group of secondary gear axle (8), between the diaxon of described first group of secondary gear axle (7) by first group of secondary gear (Z9, Z11) connect, between the diaxon of described second group of secondary gear axle (8) by second group of secondary gear (Z10, Z12) connect, is connected with tooth rod gear (Z15) by change pulley (Z13) between the driven axle of described first group of secondary gear axle (7) and described first tooth rod shaft (9), is connected with the excellent gear of tooth (Z16) by change pulley (Z14) between the driven axle of described second group of secondary gear axle (8) and described second tooth rod shaft (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520105834 CN2856590Y (en) | 2005-12-02 | 2005-12-02 | Two-rack anti-backlash system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520105834 CN2856590Y (en) | 2005-12-02 | 2005-12-02 | Two-rack anti-backlash system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2856590Y true CN2856590Y (en) | 2007-01-10 |
Family
ID=37599897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520105834 Expired - Lifetime CN2856590Y (en) | 2005-12-02 | 2005-12-02 | Two-rack anti-backlash system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2856590Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100545487C (en) * | 2008-04-22 | 2009-09-30 | 南京数控机床有限公司 | Clearance eliminating mechanism during a kind of mechanical transmission |
-
2005
- 2005-12-02 CN CN 200520105834 patent/CN2856590Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100545487C (en) * | 2008-04-22 | 2009-09-30 | 南京数控机床有限公司 | Clearance eliminating mechanism during a kind of mechanical transmission |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201836262U (en) | Push rod type AMT (automatic-manual integrated) clutch actuating mechanism | |
| CN102029531A (en) | Swivel table driving device with double worm and gear backlash mechanisms | |
| CN101382192A (en) | Gap eliminating transmission case | |
| CN101280823A (en) | Double-worm wheel accurate transmission mechanism | |
| CN101922540B (en) | Linear motion actuating mechanism and device utilizing same | |
| CN101701623A (en) | Elimination mechanism of transmission side clearance of cylindrical gear with linear movement | |
| CN2856590Y (en) | Two-rack anti-backlash system | |
| CN202628954U (en) | Planetary reducer for large plate bending machine | |
| CN205371463U (en) | Combination differential speed reducer | |
| CN208428017U (en) | A kind of worm and gear blind-mate device | |
| CN201561117U (en) | Straight line movement cylindrical gear transmission side gap eliminating mechanism | |
| CN211082715U (en) | High-torque worm gear reducer | |
| CN203230794U (en) | Gapless worm and gear speed reducer for industrial pipe mechanical device | |
| CN201731019U (en) | Transmission gap adjusting mechanism | |
| CN101644309B (en) | Speed reducer | |
| CN204295395U (en) | The two drive transmission device of single screw | |
| CN201896912U (en) | Transmission mechanism for transmission between spatial intersecting shafts | |
| CN208276910U (en) | A kind of lead screw servo articulated mechanical arm | |
| CN113404820A (en) | Adjustable-gap multi-crank variable-tooth-thickness precision transmission device | |
| CN201300143Y (en) | Cold rolled sheet main drive gear case | |
| CN201636274U (en) | Power input speed change mechanism for linear three-screw extruder | |
| CN204868296U (en) | Geared feed structure | |
| CN215634851U (en) | Bidirectional output type gear box | |
| CN203223519U (en) | Double-crank cycloidal pin gear speed reducer | |
| CN220337426U (en) | Flat double-purpose gearbox transmission structure capable of reducing cost |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070110 |
|
| EXPY | Termination of patent right or utility model |