CN201020634Y - Heavy machine tool high accuracy heavy-load feeding transmission device - Google Patents
Heavy machine tool high accuracy heavy-load feeding transmission device Download PDFInfo
- Publication number
- CN201020634Y CN201020634Y CNU200720115935XU CN200720115935U CN201020634Y CN 201020634 Y CN201020634 Y CN 201020634Y CN U200720115935X U CNU200720115935X U CN U200720115935XU CN 200720115935 U CN200720115935 U CN 200720115935U CN 201020634 Y CN201020634 Y CN 201020634Y
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- oil
- static pressure
- worm screw
- distribution casing
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Abstract
The utility model discloses a drive mechanism with high precision and heavy load used for heavy machine, whose technical scheme is following: oil grooves are evenly arranged around internal ring of hydrostatic worm and outlets of oil grooves are equally positioned at both sides of spiral toothing of the hydrostatic worm, meanwhile, two corresponding arc-shaped oil grooves are also arranged at both sides of teeth of worm bar. On the end of the hydrostatic worm, an oil distribution disc is additionally arranged. Two connections of oil pipes on the oil distribution disc are respectively connected with oil recycling and purification system. Furthermore, the oil distribution disc is connected with the hydrostatic worm through a rotatable mechanism. Characterized in stable transmission with high precision, greatly reduced wear of transmission mechanism and reduced noise during engagement of transmission, the utility model obviously enables to prolong service life of prior machine tools. The pressures on oil grooves on static tooth flanks at both sides of the hydrostatic worm can be guaranteed equal whether the transmission mechanism is subjected to axial load or not.
Description
Technical field
The utility model relates to a kind of heavy machine tool high precision overloading lotus feeding transmission mechanism.
Background technology
At present, the transmission feeding major part of heavy machine tool is all realized by mercerising thick stick or rack-and-pinion, because the limitation of heavy machine tool own wt, when load is excessive, its feed accuracy just can be affected unavoidably, especially therefore and more difficult the avoiding of backlass that produces also ground easily simultaneously and hindered transmission mechanism, influence the service life of equipment.Along with the renewal of science and technology and the fast development of processing manufacturing industry, also more and more higher to the requirement of heavy machine tool transmission accuracy, existing transmission feeding design can not be satisfied the needs of present production far away.
Summary of the invention
Goal of the invention of the present utility model provides a kind of transmission accuracy height, wearing and tearing are little, operates steadily a kind of efficiently heavy machine tool high precision overloading of transmission lotus feeding transmission mechanism.
The technical solution of the utility model is that annular is evenly distributed with oil groove in the entity of static pressure worm screw, the outlet of oil groove is distributed on the both sides of static pressure worm spiral tooth, the also equal correspondence in the both sides of each flute profile has two relative arc oil storage tanks on static pressure snail master bar, install an oil distribution casing additional in the end of static pressure worm screw, in oil distribution casing, be provided with oil pocket, the be slidingly matched inlet of face place oil groove of its oil-feed port and static pressure worm screw dynamically communicates, oil distribution casing is provided with two place's oil connections, one place is connected with constant displacement pump by pipeline, and another place is connected with oily reclaiming clean system; Be rotatably assorted between oil distribution casing and static pressure worm shaft, by the band locking slot nut that is located at the block plate outside some aspect of oil distribution casing be positioned at the centre of shelves dish and static pressure worm screw, and leave certain clearance.
The beneficial effects of the utility model are that transmission accuracy is high and very stable, the wearing and tearing that alleviated transmission widely, and the noise when having reduced the transmission engagement obviously prolongs the service life of existing lathe.When revolute pair is not subjected to axial load, the flank of tooth oil groove pressure of static pressure worm screw both sides static pressure snail master bar equates, obtain identical pressure oil in each mesh tooth face both sides, the static pressure worm screw can not produce axial displacement, when revolute pair is subjected to axial load, the pressure differential that produces in the flank of tooth oil groove of static pressure worm screw both sides static pressure snail master bar also can make the static pressure worm screw return to metastable position moment, obtains higher and stable transmission accuracy.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in detail
Fig. 1 is the structural representation of the utility model high precision overloading lotus feeding transmission mechanism
Fig. 2 is the front view of oil distribution casing
Fig. 3 is the left view of oil distribution casing
Fig. 4 is the front view and the cutaway view of static pressure snail master bar
Fig. 5 is the left view of Fig. 4
Fig. 6 is static pressure worm screw and static pressure snail master bar engagement schematic diagram
Number in the figure
1, oil connection 2, shelves dish 3, band locking slot nut 4, static pressure worm shaft
5, static pressure worm screw 6, oil distribution casing 7, static pressure snail master bar 8, oil distribution casing oil pocket
9, oil-feed port 10, oil groove 11, arc oil storage tank
The specific embodiment
Example 1
The utility model adopts static pressure worm screw snail master bar transmission system, concrete structure is evenly distributed with oil groove 10 for annular in the entity of static pressure worm screw 5, the outlet of oil groove 10 is distributed on the both sides of static pressure worm screw 5 helical tooths, the also equal correspondence in the both sides of each flute profile has two relative arc oil storage tanks 11 on static pressure snail master bar 7, install an oil distribution casing 6 additional in the end of static pressure worm screw 5, in oil distribution casing 6, be provided with oil pocket 8, the be slidingly matched inlet of face place oil groove 10 of its oil-feed port 9 and static pressure worm screw 5 dynamically communicates, oil distribution casing 6 is provided with two place's oil connections 1, one place is connected with constant displacement pump by pipeline, and another place is connected with oily reclaiming clean system; 4 of oil distribution casing 6 and static pressure worm shafts are rotatably assorted, and by the band locking slot nut that is located at block plate 2 outsides oil distribution casing 6 are positioned at the centre of shelves dish 2 and static pressure worm screw 4, and leave certain clearance.
The operation principle of above-mentioned design is that oil distribution casing 6 maintains static when static pressure worm screw 5 is rotated, and static pressure worm screw 5 can access the isobaric pressure oil that constant displacement pump is come by oil distribution casing 6 conveyings all the time with static pressure snail master bar 7 in engagement.When revolute pair is not subjected to axial load, flank of tooth oil groove 10 pressure of static pressure worm screw 5 both sides static pressure snail master bars 7 equate, obtain identical pressure oil in each mesh tooth face both sides, static pressure worm screw 5 can not produce axial displacement, when revolute pair is subjected to axial load, the pressure differential that produces in the flank of tooth oil groove 10 of static pressure worm screw 5 both sides static pressure snail master bars 7 also can make static pressure worm screw 5 return to metastable position moment, obtains higher and stable transmission accuracy.
Claims (1)
1. heavy machine tool high precision overloading lotus feeding transmission mechanism, it is characterized in that being evenly distributed with oil groove (10) for annular in the entity of static pressure worm screw (5), the outlet of oil groove (10) is distributed on the both sides of static pressure worm screw (5) helical tooth, the also equal correspondence in both sides that goes up each flute profile at static pressure snail master bar (7) has relative two arc oil storage tanks (11), install an oil distribution casing (6) additional in the end of static pressure worm screw (5), in oil distribution casing (6), be provided with oil pocket (8), the be slidingly matched inlet of face place oil groove (10) of its oil-feed port (9) and static pressure worm screw (5) dynamically communicates, oil distribution casing (6) is provided with two place's oil connections (1), one place is connected with constant displacement pump by pipeline, and another place is connected with oily reclaiming clean system; Be rotatably assorted between oil distribution casing (6) and static pressure worm shaft (4), by the band locking slot nut that is located at block plate (2) outside oil distribution casing (6) be positioned at the centre of shelves dishes (2) and static pressure worm screw (4), and leave certain clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720115935XU CN201020634Y (en) | 2007-04-06 | 2007-04-06 | Heavy machine tool high accuracy heavy-load feeding transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720115935XU CN201020634Y (en) | 2007-04-06 | 2007-04-06 | Heavy machine tool high accuracy heavy-load feeding transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201020634Y true CN201020634Y (en) | 2008-02-13 |
Family
ID=39088041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720115935XU Expired - Lifetime CN201020634Y (en) | 2007-04-06 | 2007-04-06 | Heavy machine tool high accuracy heavy-load feeding transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201020634Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111496464A (en) * | 2020-04-29 | 2020-08-07 | 常州机电职业技术学院 | Repairing method suitable for worm and worm mother strip pair of heavy machine tool |
-
2007
- 2007-04-06 CN CNU200720115935XU patent/CN201020634Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111496464A (en) * | 2020-04-29 | 2020-08-07 | 常州机电职业技术学院 | Repairing method suitable for worm and worm mother strip pair of heavy machine tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080213 |
|
| CX01 | Expiry of patent term |