CN211574228U - Gear clearance adjusting structure - Google Patents
Gear clearance adjusting structure Download PDFInfo
- Publication number
- CN211574228U CN211574228U CN201922465407.2U CN201922465407U CN211574228U CN 211574228 U CN211574228 U CN 211574228U CN 201922465407 U CN201922465407 U CN 201922465407U CN 211574228 U CN211574228 U CN 211574228U
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- gear
- adjusting
- hole
- pin
- shaft
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Abstract
The utility model relates to a part and annex technical field of lathe equipment are a gear clearance adjusts structure particularly, and its characterized in that includes: a gear shaft; the first gear is fixed on a gear shaft through a locking nut, the second gear penetrates through the gear shaft and is installed below the first gear, the first gear and the second gear have the same tooth number and mode and are completely overlapped, an adjusting hole is formed in the first gear, and a pin hole is formed in the second gear; the adjusting pin penetrates through the pin hole, is movably arranged in the adjusting hole, and replaces a common single gear structure with an upper gear structure and a lower gear structure; the backlash of the counter gear is reduced or eliminated by finely adjusting the position between the upper gear and the lower gear; the structure is simple and small, and the space can be saved; the adjustment is convenient and fast, and the working efficiency can be improved.
Description
Technical Field
The utility model relates to a part and annex technical field of lathe equipment are a gear clearance adjusts structure particularly.
Background
Gear transmissions are often employed in mechanical feed devices in electromechanical systems to achieve certain speed reduction ratios and torque requirements. Because the gears always have certain errors in manufacturing and cannot meet the ideal tooth surface requirement, a pile of meshed gears always have certain gear clearance.
Backlash can cause each reverse movement of the feed system to lag behind the command signal, losing the command pulse and creating a reverse dead zone, which can have a significant impact on transmission accuracy.
For closed loop systems, backlash can also affect the stability of the system. Therefore, the gear train requires high motion precision and smoothness, and the transmission clearance between the transmission gear pairs is eliminated as much as possible.
The methods commonly used on equipment to adjust backlash have different approaches for different types of gear pairs.
SUMMERY OF THE UTILITY MODEL
The utility model aims to eliminate the transmission clearance between the transmission gear pair as far as possible, provide a novel structure, small and exquisite, safe and reliable, adjust convenient gear clearance adjustment structure.
In order to achieve the above object, a gear backlash adjustment structure is designed, characterized by comprising:
a gear shaft; the first gear is fixed on a gear shaft through a locking nut, the second gear penetrates through the gear shaft and is installed below the first gear, the first gear and the second gear have the same tooth number and mode and are completely overlapped, an adjusting hole is formed in the first gear, and a pin hole is formed in the second gear; and the adjusting pin penetrates through the pin hole and is movably arranged in the adjusting hole.
Compared with the prior art, the utility model, its advantage lies in: 1. an upper gear structure and a lower gear structure are used for replacing a common single gear structure; 2. the backlash of the counter gear is reduced or eliminated by finely adjusting the position between the upper gear and the lower gear; 3. the structure is simple and small, and the space can be saved; 4. the adjustment is convenient and fast, and the working efficiency can be improved.
Drawings
Fig. 1 is a front view of a gear backlash adjustment structure in an embodiment of the present invention;
fig. 2 is a bottom view of a gear backlash adjustment structure according to an embodiment of the present invention;
fig. 3 is a top view of an adjusting pin of a gear backlash adjusting mechanism according to an embodiment of the present invention; in the figure: 1. the gear shaft 2, the first gear 3, the second gear 4, the adjusting pin 5, the nut 6, the locking nut 7, the adjusting hole 8 and the pin hole.
Detailed Description
The structure and principle of such a device will be apparent to those skilled in the art from the following further description of the invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The utility model adopts the adjusting pin to adjust and finely adjust the position between the upper gear and the lower gear to realize the reduction or elimination of the backlash of the counter gear,
as shown in FIG. 1, the present invention uses the gear shaft 1 as the mounting base of the whole gear clearance adjusting structure. The lock nut 6 fixes the first gear 2 to the gear shaft 1. The second gear 3 passes through the gear shaft 1 and is arranged below the first gear 2, the number of teeth and the mode of the first gear 2 and the second gear 3 are the same, and the two gears are completely overlapped.
As shown in fig. 1 and 2, the first gear 2 is provided with an adjusting hole 7, and the second gear 3 is provided with a pin hole 8. The adjusting pin 4 passes through the pin hole 7 and is movably arranged in the adjusting hole 7. The adjustment pin 4 is rotated to enable the upper gear and the lower gear to be finely adjusted relatively, so that the purpose of adjusting the backlash of the gears is achieved.
After the gear backlash is adjusted by the adjusting pin 4, the lower nut 5 is tightened to fix the position of the adjusting pin 4, as shown in fig. 1.
As shown in FIG. 3, the adjusting pin 4 has a plurality of optional adjusting sizes S, and adjusting pins with different sizes can be manufactured according to the sizes of gears with different models and different working conditions.
Claims (1)
1. A gear backlash adjustment structure, characterized by comprising:
a gear shaft;
the first gear is fixed on a gear shaft through a locking nut, the second gear penetrates through the gear shaft and is installed below the first gear, the first gear and the second gear have the same tooth number and mode and are completely overlapped, an adjusting hole is formed in the first gear, and a pin hole is formed in the second gear;
and the adjusting pin penetrates through the pin hole and is movably arranged in the adjusting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922465407.2U CN211574228U (en) | 2019-12-31 | 2019-12-31 | Gear clearance adjusting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922465407.2U CN211574228U (en) | 2019-12-31 | 2019-12-31 | Gear clearance adjusting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211574228U true CN211574228U (en) | 2020-09-25 |
Family
ID=72553186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922465407.2U Active CN211574228U (en) | 2019-12-31 | 2019-12-31 | Gear clearance adjusting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211574228U (en) |
-
2019
- 2019-12-31 CN CN201922465407.2U patent/CN211574228U/en active Active
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