CN202438752U - Worm gear pair backlash eliminating device for work-piece main shaft of gear milling machine - Google Patents
Worm gear pair backlash eliminating device for work-piece main shaft of gear milling machine Download PDFInfo
- Publication number
- CN202438752U CN202438752U CN 201220055925 CN201220055925U CN202438752U CN 202438752 U CN202438752 U CN 202438752U CN 201220055925 CN201220055925 CN 201220055925 CN 201220055925 U CN201220055925 U CN 201220055925U CN 202438752 U CN202438752 U CN 202438752U
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- China
- Prior art keywords
- worm gear
- gear
- main shaft
- hydraulic motor
- eliminating device
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- 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
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Abstract
The utility model relates to a worm gear pair backlash eliminating device for a work-piece main shaft of a gear milling machine. The worm gear pair backlash eliminating device comprises a connection plate and a hydraulic motor, wherein the connection plate is fixed on a box body, the hydraulic motor is fixed on the connection plate, and an output shaft of the hydraulic motor is connected with a gear. The worm gear pair backlash eliminating device is characterized in that the gear on the output shaft of the hydraulic motor is meshed with an idle wheel on a small shaft to form a group of meshing gears, and the idle wheel is meshed with the gear fixedly connected with a worm gear. The worm gear pair backlash eliminating device disclosed by the utility model has the advantages that the backlash elimination of a worm gear pair of the main shaft is realized through the transmission of a hydraulic system and the meshing gears; when the work-piece main shaft rotates to start indexing, the hydraulic system generates damping force opposite to the rotation direction of the work-piece main shaft, and the damping force is finally applied to the work gear through the transmission of the meshing gears, so that the backlash of the worm gear pair of the main shaft is further eliminated. The worm gear pair backlash eliminating device disclosed by the utility model can not only provide powerful conditions for improving the indexing precision of the gear milling machine with a gear broaching function, but also has the advantages of being simple in structure, low in cost and easy to assemble.
Description
Technical field
The utility model belongs to the technology of Machine Tool field, particularly relates to a kind of mill teeth machine work spindle worm gear backlash eliminating equipment.
Background technology
Along with the continuous development of auto manufacturing, the application of spiral bevel gear is increasingly extensive.At present, adopt to have the mill teeth machined spiral bevel gear that draws the tooth function, can realize producing in enormous quantities, and production efficiency is high, precision is high.Owing in the spiral bevel gear process, the work spindle indexing accuracy is had relatively high expectations, influencing this accuracy factors is the worm gear gap that driving main shaft is rotated; Traditional mill teeth machine work spindle connects worm gear and passes through worm drive; Both constitute simple worm couple, certainly exist certain interval, do not possess the crack of disappearing function; Therefore when the main shaft worm gear was rotated, its spindle index precision can receive the influence in worm gear gap.
Summary of the invention
The utility model provides a kind of simple in structure, mill teeth machine work spindle worm gear backlash eliminating equipment that can improve the work spindle indexing accuracy for solving the technical problem that exists in the known technology.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
Mill teeth machine work spindle worm gear backlash eliminating equipment; Comprise connecting plate that is fixed on the casing and the hydraulic motor of fixing with connecting plate; Be connected with gear on the said hydraulic motor output shaft; It is characterized in that: the gear on the said hydraulic motor output shaft is meshed with the idle pulley that is installed on little, forms one group of meshing gear, and said idle pulley is meshed with the gear that worm gear is fixedly connected.
The utility model can also adopt following technical scheme:
Said hydraulic motor output shaft is through the key connection gear.
Said worm gear is installed on the work spindle.
Advantage and the good effect that the utlity model has are: because the utility model adopts technique scheme, promptly realize the crack that disappears of main shaft worm gear through the transmission of hydraulic system and meshing gear.When work spindle rotated the beginning calibration, hydraulic system promptly produced the damping force with the work spindle direction of rotation, and the transmission through meshing gear finally is applied on the worm gear, and then eliminated main shaft worm gear gap.This backlash eliminating equipment not only can be to improve and has the mill teeth machine indexing accuracy that draws the tooth function strong condition is provided, and simple in structure, is easy to assembling, and is with low cost.This device is assemblied in the work spindle worm gear outside, and it is comparatively convenient to change and keep in repair.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the rotation sketch map of the utility model worm gear, idle pulley and gear;
Fig. 3 is the stressed sketch map of the utility model worm gear, idle pulley and gear.
Among the figure: 1, hydraulic motor; 2, connecting plate; 3, screw; 4, key; 5, gear; 6, little axle; 7, idle pulley; 8, retaining pad; 9, screw; 10, gear; 11, screw; 12, worm gear; 13, hydraulic motor output shaft.
The specific embodiment
For further understanding summary of the invention, characteristics and the effect of the utility model, the following examples of giving an example now, and conjunction with figs. specifies as follows:
See also Fig. 1, mill teeth machine work spindle worm gear backlash eliminating equipment comprises the hydraulic motor 1 that is fixed on the connecting plate 2 on the casing and fixes with connecting plate through screw 3, is connected with gear 5 through key 4 on the said hydraulic motor output shaft 13.Gear 5 on the said hydraulic motor output shaft is meshed with the idle pulley 7 that is installed on little 6, forms one group of meshing gear.Said idle pulley 7 one sides are installed retaining pad 8, and retaining pad 8 is fixing with little axle 6 through screw, and idle pulley 7 meshes with gear 10, and gear 10 is meshed with worm gear 12 on being installed in work spindle through screw 11.When worm gear 12 rotated, hydraulic system drove hydraulic motor and rotates.It is identical that the rotation direction of hydraulic motor output shaft and worm gear turn to, but hydraulic system produces the damping force with direction of rotation to hydraulic motor, and act on hydraulic motor output shaft.Through the transmission of meshing gear, final worm gear receives the damping force that equates with its direction of rotation, numerical value.Worm gear is under the effect of this damping force, and engaging tooth one side all the time compresses, and promptly realizes eliminating the worm gear gap.
See also Fig. 2 and Fig. 3, suppose the worm gear rotation direction for clockwise, the idle pulley rotation direction be counterclockwise, and the hydraulic motor output gear turns to clockwise.It is that idle pulley is stressed in the opposite direction counterclockwise that hydraulic motor receives force direction, and it is counterclockwise that worm gear receives force direction, with its direction of rotation.
Claims (3)
1. mill teeth machine work spindle worm gear backlash eliminating equipment; Comprise connecting plate that is fixed on the casing and the hydraulic motor of fixing with connecting plate; Be connected with gear on the said hydraulic motor output shaft; It is characterized in that: the gear on the said hydraulic motor output shaft is meshed with the idle pulley that is installed on little, forms one group of meshing gear, and said idle pulley is meshed with the gear that worm gear is fixedly connected.
2. mill teeth machine work spindle worm gear backlash eliminating equipment according to claim 1 is characterized in that: said hydraulic motor output shaft is through the key connection gear.
3. mill teeth machine work spindle worm gear backlash eliminating equipment according to claim 1, it is characterized in that: said worm gear is installed on the work spindle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220055925 CN202438752U (en) | 2012-02-21 | 2012-02-21 | Worm gear pair backlash eliminating device for work-piece main shaft of gear milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220055925 CN202438752U (en) | 2012-02-21 | 2012-02-21 | Worm gear pair backlash eliminating device for work-piece main shaft of gear milling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202438752U true CN202438752U (en) | 2012-09-19 |
Family
ID=46820207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220055925 Expired - Fee Related CN202438752U (en) | 2012-02-21 | 2012-02-21 | Worm gear pair backlash eliminating device for work-piece main shaft of gear milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202438752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195837A (en) * | 2015-10-31 | 2015-12-30 | 重庆机床(集团)有限责任公司 | Gear hobbing machine cutter frame rotating plate damping mechanism |
-
2012
- 2012-02-21 CN CN 201220055925 patent/CN202438752U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195837A (en) * | 2015-10-31 | 2015-12-30 | 重庆机床(集团)有限责任公司 | Gear hobbing machine cutter frame rotating plate damping mechanism |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20200221 |