CN202708031U - Gapless gear transmission device - Google Patents
Gapless gear transmission device Download PDFInfo
- Publication number
- CN202708031U CN202708031U CN 201220359041 CN201220359041U CN202708031U CN 202708031 U CN202708031 U CN 202708031U CN 201220359041 CN201220359041 CN 201220359041 CN 201220359041 U CN201220359041 U CN 201220359041U CN 202708031 U CN202708031 U CN 202708031U
- Authority
- CN
- China
- Prior art keywords
- gear
- shaft
- jack shaft
- gears
- disk
- 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 - Fee Related
Links
Images
Landscapes
- Gear Transmission (AREA)
Abstract
The utility model relates to a gear transmission device, in particular to a gasless gear transmission device. The gapless gear transmission device comprises a gear box body, an input shaft, an output shaft and a middle shaft, the input shaft, the output shaft and the middle shaft are arranged in the gear box body, and two gears which are arranged on the middle shaft are respectively meshed with gears of the input shaft and the output shaft. The gasless gear transmission device is characterized in that the two gears on the middle shaft which are mutually meshed with the input shaft and the output shaft are combined and formed by two gears of the same size and module number. One gear of the two gears combined is fixedly connected with the middle shaft, the other gear of the two gears combined is arranged on the middle shaft in loose mode, a disk with a staggered angle is fixed on one side of a loose gear of the middle shaft, and a tension spring is arranged between the loose gear and the disk with the staggered angle. The gasless gear transmission device is reasonable in structure, stable in transmission, good in precision protecting performance, capable of really achieving high-precision gapless gear output transmission, and especially suitable for being used in a precision machine tool.
Description
Technical field
The utility model relates to a kind of gear drive, particularly gapless gear driving device.
Background technique
NC machine tool feed system, particularly continuous control system require position and two aspects of speed of feed movement are realized automatic control simultaneously, so just require the machine driven system of numerical control machine tool that higher Location accuracy and transmission response characteristic will be arranged.NC machine tool feed system is owing to need frequently break-in, if there is the gap in Transmitted chains middle gear transmission, after positive and negative commutation, will there be error in the actual rotational angle of output shaft between the and instruction system, also will make feed movement lag behind instruction system, thereby affect machining accuracy.Therefore must take measures to eliminate the gap in the gear driving pair, to improve transmission accuracy and the Location accuracy of numerical control machine tool.Eliminate at present the gear transmission gap many kinds of methods are arranged, as: equipment gear transmission device, helical gear and the Straight Bevel Gear Drive device in tunable center method, anti-gap, said apparatus is one of subject matter that affects the numerically-controlled precise machine tool accuracy because structure is comparatively complicated, the Gear Processing required precision is higher, stable drive and precision stability can't guarantee.
Summary of the invention
The purpose of this utility model is to overcome the defective that prior art exists, and provides a kind of and can effectively eliminate the gap between the gear in frequent commutation process, transmission stability and the good gapless gear driving device of precision stability of continuous operation when guaranteeing commutation.
For achieving the above object, the technical solution of the utility model is: a kind of gapless gear driving device, comprise gear housing, be installed in the input shaft in the gear housing, output shaft and jack shaft, wherein two gears on the jack shaft respectively with input shaft and output shaft on gear intermeshing, it is characterized in that on above-mentioned jack shaft with input shaft and output shaft pitch wheel it being by two sizes, the Gear combination that modulus is identical forms, in two gears that above-mentioned two combine, one of them gear is fixedly connected with jack shaft, another gear empty set is on jack shaft, the stagger disk of usefulness of angle is fixed on free gear one side on the jack shaft, between free gear and angle stagger the disk of usefulness extension spring is installed.
On staggering two opposing sides of disk of usefulness, the gear on the jack shaft and angle all be installed with the bearing pin of fixedly extension spring in above-mentioned empty set, center line between the bearing pin of empty set on the bearing pin on the gear on the jack shaft and angle stagger the disk of usefulness forms 60-120 ° angle take the center of circle of jack shaft as basic point in the space, the two ends of extension spring are separately fixed on two bearing pins.
Above-mentioned empty set all is installed with 2-4 pairs of the bearing pins of fixedly extension spring on the gear on the jack shaft and angle stagger two opposing sides of disk of usefulness, extension spring all is installed on every pair of bearing pin.
The utility model utilizes two sizes, thin gear that modulus is identical to be sleeved on side by side to form a gear on the jack shaft, and one is fixedly linked with jack shaft in the two thin gears, another empty set is on jack shaft, utilization is fixed on disk and the extension spring that the angle on the jack shaft staggers usefulness, make empty set minute angle of thin gear rotation on jack shaft, gap between intermeshing with the elimination gear, satisfied NC machine tool feed system, particularly the high-precision requirement of numerically-controlled precise machine tool feed motion.That this device has is rational in infrastructure, stable drive, precision stability are good, has really realized high-precision gapless gear output transmission, is particularly suitable for using on the precision machine tool.
Description of drawings
Accompanying drawing 1 is transmission principle figure of the present utility model;
Accompanying drawing 2 is the utility model jack shaft partial structurtes schematic representation;
Accompanying drawing 3 is the A-A sectional view of the utility model accompanying drawing 2.
Embodiment
As shown in Figure 1, 2, 3, input shaft 2, output shaft 6 and jack shaft 10 are installed in gear housing 9, at jack shaft two gears are installed, this two gear respectively with input shaft and output shaft on gear intermeshing.Two gears on the jack shaft all are to be formed by two sizes, Gear combination that modulus is identical, one of them gear 5 is fixedly connected with by key with jack shaft, another gear 11 empty sets are on jack shaft, the stagger disk 12 of usefulness of angle is fixed on free gear one side on the jack shaft by key, all be installed with 3 fixedly bearing pins 4 of extension spring on free gear and angle stagger two opposing sides between the disk of usefulness, extension spring 3 is installed on the two relative bearing pins.
Size according to driving torque, the quantity of extension spring can be chosen in 2-4, stagger center line between the two corresponding bearing pins on the disk of usefulness of free gear and angle forms 60-120 ° angle take the center of circle of jack shaft as basic point in the space, the selection of angle is that the size according to required pulling force determines.
During use, gear corresponding on gear 1 on the input shaft 2 and the jack shaft is intermeshing, another gear and the gear 8 on the output shaft on the jack shaft are intermeshing, because free gear is by the rotatable minute angle of extension spring, just can eliminate the gap between the intermeshing gear, the error that is installed in like this between the instruction system of encoder 7 on the output shaft 6 and numerical control machine tool will reduce greatly.
Claims (3)
1. gapless gear driving device, comprise gear housing, be installed in the input shaft in the gear housing, output shaft and jack shaft, wherein two gears on the jack shaft respectively with input shaft and output shaft on gear intermeshing, it is characterized in that upper at above-mentioned jack shaft (10) and input shaft (2) and output shaft (6) pitch wheel are by two sizes, the Gear combination that modulus is identical forms, in two gears that above-mentioned two combine, one of them gear (5) is fixedly connected with jack shaft, another gear (11) empty set is on jack shaft, the stagger disk (12) of usefulness of angle is fixed on free gear one side on the jack shaft, between free gear and angle stagger the disk of usefulness extension spring (3) is installed.
2. gapless gear driving device according to claim 1, it is characterized in that all being installed with on the gear (11) of (10) on the jack shaft and angle stagger two opposing sides of disk (12) of usefulness in above-mentioned empty set the bearing pin (4) of fixedly extension spring, center line between the bearing pin of empty set on the bearing pin on the gear of (10) on the jack shaft and angle stagger the disk (12) of usefulness forms 60-120 ° angle take the center of circle of jack shaft as basic point in the space, the two ends of extension spring (3) are separately fixed on two bearing pins.
3. gapless gear driving device according to claim 2, it is characterized in that above-mentioned empty set all is installed with (4) 2-4 pairs of the bearing pins of fixedly extension spring on the gear (11) of (10) on the jack shaft and angle stagger two opposing sides of disk (12) of usefulness, all be equipped with extension spring (3) on every pair of bearing pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220359041 CN202708031U (en) | 2012-07-24 | 2012-07-24 | Gapless gear transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220359041 CN202708031U (en) | 2012-07-24 | 2012-07-24 | Gapless gear transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202708031U true CN202708031U (en) | 2013-01-30 |
Family
ID=47588337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220359041 Expired - Fee Related CN202708031U (en) | 2012-07-24 | 2012-07-24 | Gapless gear transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202708031U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748461A (en) * | 2012-07-24 | 2012-10-24 | 宁夏银川大河数控机床有限公司 | Zero-clearance gear transmission device |
-
2012
- 2012-07-24 CN CN 201220359041 patent/CN202708031U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748461A (en) * | 2012-07-24 | 2012-10-24 | 宁夏银川大河数控机床有限公司 | Zero-clearance gear transmission device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103753333B (en) | The elimination backlash structure of gear drive | |
| CN203409594U (en) | Indexing head | |
| CN204559313U (en) | The short body steering wheel of Linear transmission | |
| CN103121168A (en) | Numerical-control large-scale precise dual-drive gap removing rotating working table | |
| CN104964022A (en) | Gear and rack transmission anti-backlash mechanism | |
| CN202708031U (en) | Gapless gear transmission device | |
| CN102748461A (en) | Zero-clearance gear transmission device | |
| CN201684926U (en) | Main shaft power-transmission device of two-revolution oscillating cutter head | |
| CN203481991U (en) | Planetary roller screw electric cylinder | |
| CN202780650U (en) | Forward and reverse triple-shaft type servo power processing unit | |
| CN202356870U (en) | Numerically-controlled large-scale precision dual-drive clearance-eliminating rotary table | |
| CN204843676U (en) | Two servo digit control machine tools | |
| CN201906860U (en) | Multi-shaft device capable of processing synchronously | |
| CN104329437A (en) | Anti-backlash gear | |
| CN203541556U (en) | Lathe sliding box with groove plate mechanism | |
| CN104097112A (en) | New type dividing head | |
| CN203796894U (en) | Anti-backlash gear | |
| CN201455457U (en) | Indexing mechanism for heavy-duty spiral bevel gear shaving machine | |
| CN202992033U (en) | Dual-drive speed reducer | |
| CN203197649U (en) | Gear shaper | |
| CN203223543U (en) | Eccentric device for reducer | |
| CN110722368A (en) | Main shaft speed change mechanism of planer type milling machine | |
| CN200963705Y (en) | Intracavity milling device | |
| CN107511509B (en) | Easy-operating boring auxiliary mould | |
| CN216543506U (en) | Manual paper cutter |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20190724 |