CN86201222U - Static hydraulic bearing part protruding from lower end of vertical spindle - Google Patents
Static hydraulic bearing part protruding from lower end of vertical spindle Download PDFInfo
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- CN86201222U CN86201222U CN 86201222 CN86201222U CN86201222U CN 86201222 U CN86201222 U CN 86201222U CN 86201222 CN86201222 CN 86201222 CN 86201222 U CN86201222 U CN 86201222U CN 86201222 U CN86201222 U CN 86201222U
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- oil
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Abstract
The utility model discloses a static hydraulic bearing part protruding from the lower end of a vertical spindle. The utility model adopts a fuel return system which is composed of a main oil gallery and a secondary oil gallery. Therefore, the problem that a static hydraulic bearing is applied by a spindle component protruding from the lower end of a vertical spindle is solved. Therefore, the utility model can be suitable for accurate spindle components, such as vertical grinding heads, boring heads, milling heads, etc. The frictional resistance is small and the vibration-proof performance is good. The utility model has the advantages of high precision, strong applicability and long service life.
Description
The utility model relates to the spindle unit of hydrostatic bearings structure.
Characteristics such as hydrostatic bearings has that surface friction drag is little, resistance to shock good, kinematic accuracy is high, long service life, conformability are strong.Therefore, on lathe, precision measurement instrument and steel rolling equipment, be applied at present.But because the loop problem of oil only is used in the vertical spindle parts (as vertical lathe spindle) that stretch out in various horizontal main axis parts (as the bistrique of the MG1432A of Shanghai machine tool plant highi degree of accuracy outer circular end grinding machine) and upper end etc. at present.And can not be used for the spindle unit that stretch out the vertical spindle lower end, this all has clear and definite argumentation in " liquid static-pressure support principle and design " (Chen Yansheng etc. write) and " Liquid Static-Press Technique principle and application " academic works such as (machine tool institute, Guangzhou volumes).
The utility model proposes a kind of brand-new design at the current existing problem of hydrostatic bearings, stretches out mode and oil return mode with new main shaft, has solved the application problem of hydrostatic bearings on the extended part of vertical spindle lower end.
The purpose of this utility model also is to provide a kind of omnipotent bistrique of conical surface hydrostatic bearings structure.
Characteristics of the present utility model are to have two oil circuits---main oil circuit and time oil circuit so the oil in the bearing oil pocket can return fuel tank by primary and secondary two oil circuits, thereby have solved hydrostatic bearings is stretched out oil return difficulty under the situation in the vertical spindle lower end problem.Another characteristics of the design are to have stria on the garden outside the main shaft foreneck, and therefore, stria drives the oil of annular oil sump and returns fuel tank by inferior return opening when main shaft is worked.
Details are as follows with reference to figure one in enforcement of the present utility model:
Figure one: be a kind of hydrostatic bearings parts that are used in omnipotent bistrique, it mainly consists of casing (8), oil return boss (3), flange (19), spacer (11) in the main shaft that stretch out the lower end (4), collar bush (10), fore bearing (5), rear bearing (9), adjustment ring (6), the chamber, connection seat (12), motor (14), connecting flange (13), the joint that confluxes (20).The inner conical surface of fore bearing (5) and rear bearing (9) has four symmetry carrying oil pockets (21), male cone (strobilus masculinus) two circular grooves of having got on the bus, protruding garden wimble fraction size in the middle of two circular grooves is reduced, make it to have two circular grooves with inner conical surface, the tapered sleeve (6) that tapering, garden in the middle of the circular groove is divided into quarter is complementary, and forms gap h
cPlay throttling action.Unclamp nut (7), rotation tapered sleeve (6), can change tapered sleeve (6) and adjust the throttling ratio with the relative position of oil inlet hole (16).The size of adjusting spacer (11) can obtain desirable oil slick thickness.The pressure oil of oil supply system enters annular groove through oil-feed duct (15), by throttle clearance h
cAnd oil inlet hole (16) enters carrying oil pocket (21).The most of oil return aperture from oil return boss (3) of oil in the oil pocket (21) imports the main oil circuit of being made up of main oil return duct (22) and main return opening (2), the joint that confluxes (20) and returns fuel tank.The oil that small part is leaked from the front and back bearings two ends comes together in the annular oil sump (18) of flange (19) inner end by oil return duct (17), outside main shaft (4) foreneck, can make the blind hole of stria (23) or 2～3 millimeters deep on the surface, garden, the position of stria (23) or blind hole and annular oil sump (18) coupling, therefore, when main shaft was worked, the centrifugal force that is produced can drive the oil in the annular oil sump to inferior return opening (1) oil return.
Because the utility model solved the oil return problem, also therefore solved common indeterminable vertical spindle lower end and stretched out spindle unit and can not adopt the hydrostatic bearings problem.
Because technology provided by the utility model has solved the problem that the spindle unit that stretches out the vertical spindle lower end can not adopt hydrostatic bearings, enlarged the application area of hydrostatic bearings.According to technology provided by the utility model, can produce the accurate main shaft parts such as hydrostatic bistrique, boring head, milling head of various models, be particularly useful for omnipotent bistrique.The hydrostatic omnipotent bistrique grinding machine rectangular guideway bottom surface behind figure two expression use the design and the signal of side, the outer dovetail face signal of figure three expression grindings, the interior dovetail face signal of figure four expression grindings.
Description of drawings:
Figure one is for being used in the hydrostatic bearings block diagram of omnipotent bistrique.Wherein (1) represents time return opening, (2) represent main return opening, (3) oil return boss in the expression chamber, (4) expression main shaft, (5) expression fore bearing, (6) ring is adjusted in expression, (7) expression nut, (8) expression casing, (9) expression rear bearing, (10) expression collar bush, (11) expression spacer, (12) expression connection seat, (13) expression connecting flange, (14) expression motor, (15) expression oil-feed duct, (16) expression oil inlet hole, (17) expression time back oil road, (18) represent annular oil sump, (19) expression flange, (20) represent to conflux joint, (21) expression carrying oil pocket, (22) the main oil return of expression duct, (23) expression stria.
Figure two is the omnipotent bistrique grinding machine rectangular guideway schematic representation made from the utility model.Wherein (1) expression is contained in emery wheel, (2) expression processed piece on the main shaft external part.
Figure three is the outer dovetail face schematic representation made from the utility model of omnipotent bistrique grinding.Wherein (1) expression is contained in emery wheel, (2) expression processed piece on the main shaft external part.
Figure four is with dovetail face schematic representation in the omnipotent bistrique grinding of the utility model manufacturing.Wherein (1) expression is contained in emery wheel, (2) expression processed piece on the main shaft external part.
Claims (1)
- A kind of back loading type conical surface hydrostatic bearings structure spindle unit of forming by casing, main shaft, fore bearing, rear bearing, oil circuit.This parts main shaft that is characterized as of the present utility model is the hydrostatic bearings structure that two oil circuits are stretched out and had in vertical lower end.Above-mentioned pair of oil circuit is:A, by being located at oil return duct (22) in the oil return aperture on the oil return boss (3) in the chamber, casing (8) and main return opening (2) the main oil circuit that joint (20) forms that confluxes on the front and back bearings.There is an annular oil sump (18) inner end of b, flange (19), stria (23) is carved with on the outer surface, garden of the foreneck of main shaft (4), the position of this stria and annular oil sump (18) are complementary, and form a centrifugal force that is produced in the time of can being rotated by main shaft oil is driven to the conflux inferior oil circuit of joint (20) oil return of inferior return opening (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86201222 CN86201222U (en) | 1986-03-03 | 1986-03-03 | Static hydraulic bearing part protruding from lower end of vertical spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86201222 CN86201222U (en) | 1986-03-03 | 1986-03-03 | Static hydraulic bearing part protruding from lower end of vertical spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86201222U true CN86201222U (en) | 1986-11-19 |
Family
ID=4805026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86201222 Ceased CN86201222U (en) | 1986-03-03 | 1986-03-03 | Static hydraulic bearing part protruding from lower end of vertical spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86201222U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455356C (en) * | 2007-07-05 | 2009-01-28 | 贵州优利斯凯机械有限公司 | Vertical shaft support system of vertical shaft type impact crusher, and vertical shaft support device |
| CN102865308A (en) * | 2012-08-31 | 2013-01-09 | 平湖市山特螺纹工具有限公司 | Dead axle seat of screw tap relief grinding machine |
-
1986
- 1986-03-03 CN CN 86201222 patent/CN86201222U/en not_active Ceased
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455356C (en) * | 2007-07-05 | 2009-01-28 | 贵州优利斯凯机械有限公司 | Vertical shaft support system of vertical shaft type impact crusher, and vertical shaft support device |
| CN102865308A (en) * | 2012-08-31 | 2013-01-09 | 平湖市山特螺纹工具有限公司 | Dead axle seat of screw tap relief grinding machine |
| CN102865308B (en) * | 2012-08-31 | 2015-10-14 | 平湖市山特螺纹工具有限公司 | The dead axle seat of tap shovel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right | ||
| CE01 | Termination of patent right |