CN102913544A - Static-pressure bearing hinge pair with low rotation speed - Google Patents
Static-pressure bearing hinge pair with low rotation speed Download PDFInfo
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- CN102913544A CN102913544A CN2012104059490A CN201210405949A CN102913544A CN 102913544 A CN102913544 A CN 102913544A CN 2012104059490 A CN2012104059490 A CN 2012104059490A CN 201210405949 A CN201210405949 A CN 201210405949A CN 102913544 A CN102913544 A CN 102913544A
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Abstract
The invention provides a static-pressure bearing hinge pair with a low rotation speed. The static-pressure bearing hinge pair comprises a bearing shaft, a hinge sleeve and axial fixed blocks, wherein the bearing shaft is sleeved on the hinge sleeve in an empty manner, the axial fixed blocks are fixed at the two ends of the bearing shaft and are used for axial location, pressure oil cavities are arranged on the excircle surface of the bearing shaft and the inner side end surfaces of the axial fixed blocks, an oil path is arranged in the bearing shaft, one end of the bearing shaft is provided with an oil inlet communicated with the oil path, throttling holes communicated with the pressure oil cavities and the oil path are respectively formed in the bearing shaft and the axial fixed blocks, an oil seal surface is formed in a gap between the bearing shaft and the hinge sleeve, and an oil return pipeline is arranged on the axial fixed blocks and is communicated with the pressure oil cavities by virtue of the oil seal surface. The static-pressure bearing hinge pair with the low rotation speed has a compact structure and a strong carrying capacity, and is good in rigidity and free from abrasion, and thus the service life of the hinge pair is prolonged greatly.
Description
Technical field
The present invention relates to a kind of linkage, especially a kind of low speed revolution static pressure load-bearing hinge is paid.
Background technique
It is to realize that two parts relatively rotate the control mechanism of several angle that hinge is paid, and usually bears axially and radial load.Under the condition of heavily loaded load, the hinge of pure machinery is paid and can be produced larger pressure at load-bearing axle and hinge sleeve surface of contact (line), relatively rotate the excessive wear that occurs the metal surface in the process, scratch, tear even the interlock of metal, cause hinge to pay operational failure.And at application publication number be: the application for a patent for invention file of 102086903A discloses a kind of active and static pressure ball head articulated mechanism for heavy duty and high-frequency swing working condition, to utilize the swing in high frequency of bulb to produce dynamic pressure, utilize the pressure oil of outside input to produce static pressure, solve the fretting wear problem between swing in high frequency bulb and the ball-and-socket.Turning round heavily loaded hinge for low speed pays, utilizing active and static pressure ball head articulated mechanism principle one is can not produce dynamic pressure pressure under the low-speed conditions, work loads is all by the static pressure pressure balance, the 2nd, when low speed turns round heavily loaded hinge when paying work loads and changing, utilize active and static pressure ball head articulated mechanism principle can not automatic pressure regulation with the balance external load.In sum, the existing hinge technology of paying can not satisfy the job requirement that low speed revolution static pressure load-bearing hinge is paid.
Summary of the invention
The purpose of this invention is to provide a kind of low speed revolution static pressure load-bearing hinge and pay, be used for solving the fretting wear problem of articulating point when low speed turns round relatively between two parts that bear dynamic heavy load, reduce surface friction drag, prolong the working life that hinge is paid.
In order to solve the problems of the technologies described above, technological scheme of the present invention is as follows: a kind of low speed revolution static pressure load-bearing hinge is paid, it is characterized in that: comprise the load-bearing axle, hinge sleeve, the axial restraint piece, load-bearing axle empty set is on hinge sleeve, the axial restraint piece is fixed on the two ends of load-bearing axle, realize the axially locating of load-bearing axle, all be shaped with pressure oil cavity on the inner side end of the outer round surface of load-bearing axle and axial restraint piece, the inside of load-bearing axle is provided with oil circuit, one end of load-bearing axle is provided with the filler opening that communicates with oil circuit, the inside of load-bearing axle and axial restraint piece is respectively equipped with the throttle orifice that is communicated with pressure oil cavity and oil circuit, gap between load-bearing axle and the hinge sleeve forms oil sealing surface, also be provided with oil returning tube on the axial restraint piece, pressure oil cavity communicates with oil returning tube by oil sealing surface.
To improvement of the technical scheme: the outer round surface of described load-bearing axle is provided with 4-6 pressure oil cavity.
To further improvement in the technical proposal: the pressure oil cavity on the outer round surface of described load-bearing axle is arranged symmetrically with.
Further improvement to technique scheme: between described load-bearing axle and the axial restraint piece, be provided with oil sealing between described hinge sleeve and the axial restraint piece.
Beneficial effect:
Low speed revolution static pressure load-bearing hinge of the present invention is paid, and under the condition of heavily loaded load, two parts that relatively slowly run is linked to each other with load-bearing axle, hinge sleeve respectively, realizes in relative rotation control.After the interior injection pressure oil of the pressure oil cavity on load-bearing axle surface, pressure oil floats the load-bearing axle together with load, avoid the load-bearing axle directly to contact with hinge sleeve, when relatively rotating between the two, owing to there is not the direct contact of metal surface, the wearing and tearing of metal surface can not appear, when external load changes within the specific limits, based on orifice restriction principle oil pocket pressure oil pressure obtain automatically to regulate, with the external load autobalance, remain the non-direct contact of metal surface.Described low speed revolution static pressure load-bearing hinge is paid compact structure, and bearing capacity is strong, and good rigidly without wearing and tearing, has prolonged the working life that hinge is paid greatly.
Description of drawings
Fig. 1 is structure sectional view of the present invention.
Have among the figure: load-bearing axle 1, pressure oil cavity 2, oil circuit 3, throttle orifice 4, oil sealing surface 5, oil returning tube 6, hinge sleeve 7, pressure oil-source 8, oil sealing 9, axial restraint piece 10, filler opening 11.
Embodiment
Describe the present invention in detail below by specific embodiment.
Embodiment one:
A kind of low speed revolution of the present invention as shown in Figure 1 static pressure load-bearing hinge is paid, and the oil sources 8 of certain pressure enters in the oil circuit 3 from filler opening 11, through throttle orifice 4 feed pressure oil pockets 2, flows back to fuel tank through oil sealing surface 5, oil returning tube 6; When hinge sleeve 7 is fixed, load-bearing axle 1 is bearing load when (ignoring deadweight) not, the pressure oil pressure of pressure oil cavity 2 equates up and down, load-bearing axle 1 floats in the middle of the hinge sleeve 7,7 two deads in line of load-bearing axle 1 and hinge sleeve, two end axles is to the pressure communication of 2 li of fixed block 10 pressure oil cavities, and load-bearing axle 1 floats over two axially between fixing fast 10; When load-bearing axle 1 radially during bearing load, load-bearing axle 1 moves along loading direction, article two, axis is along the distance of a trace of loading direction skew, load-bearing axle 1 and hinge sleeve change in the gap about in the of 7, based on the orifice restriction principle, pressure in the gap smaller one side pressure oil pocket 2 increases, pressure difference and radial load after the variation balance each other, when the size of load does not exceed fair when using scope, load-bearing axle 1 remains that with hinge sleeve 7 nonmetallic surface contacts, when load-bearing axle 1 when hinge sleeve 7 rotates, do not have the direct friction of metal between load-bearing axle 1 and the hinge sleeve 7, can not produce wearing and tearing, greatly increased the working life that hinge is paid, because surface friction drag is little, has also saved and driven the energy that load-bearing axle 1 rotates.Be provided with oil sealing 9 between load-bearing axle 1 and the axial restraint piece 10 in addition, oil sealing 9 is used for preventing that pressure oil from leaking.
Embodiment two:
A kind of low speed revolution of the present invention as shown in Figure 1 static pressure load-bearing hinge is paid, and the oil sources 8 of certain pressure enters in the oil circuit 3 from filler opening 11, through throttle orifice 4 feed pressure oil pockets 2, flows back to fuel tank through oil sealing surface 5, oil returning tube 6; When hinge sleeve 7 is fixed, load-bearing axle 1 is bearing load when (ignoring deadweight) not, the pressure oil pressure of pressure oil cavity 2 equates up and down, load-bearing axle 1 floats in the middle of the hinge sleeve 7,7 two deads in line of load-bearing axle 1 and hinge sleeve, two end axles is to the pressure communication of 2 li of fixed block 10 pressure oil cavities, and load-bearing axle 1 floats over two axially between fixing fast 10; When bearing a thrust load on the load-bearing axle 1, it is mobile along the axis generation that load-bearing axle 1 drives axial restraint piece 10, and gap one end between axial restraint piece and the hinge sleeve becomes large, and the other end diminishes, pressure oil in the pressure oil cavity 2 produces corresponding pressure reduction, with the thrust load balance.
Among embodiment one and the embodiment two, be shaped with respectively 4 or 6 pressure oil cavities 2 on load-bearing axle 1 outer round surface, be arranged symmetrically with.The diameter of load-bearing axle and length determine according to the size of work loads that mainly what and location layout of pressure oil cavity quantity are mainly determined according to size and the excursion of work loads.
During work, load-bearing axle 1 and hinge sleeve 7 are rigidly connected with two parts that rotate respectively, and the pressure oil cavity 2 between load-bearing axle 1, axially locating piece 10 and the hinge sleeve 7 passes into pressure oil.During counterweight balance, pressure and the pressure oil-source 8 of the pressure oil cavity 2 on all directions are consistent, during load change, the load of certain direction increases, the gap smaller that corresponding the party makes progress, pressure oil is compressed, because the orifice restriction effect of throttle orifice 4, throttle orifice two ends mineralization pressure is poor, the increased pressure of corresponding oil pocket, and bearing capacity strengthens, keep reach 1, gap between axially locating piece 10 and the hinge sleeve 7, avoid reach 1, the direct contact of axially locating piece 10 and hinge sleeve 7 metal surfaces and cause wearing and tearing, scratch, tear even the interlock of metal, improve performance, increase the service life.Pressure oil flows back to fuel tank through oil sealing surface 5 and return line 6, and oil sealing 9 is used for preventing pressure oil leaking without return line 6.
Claims (4)
1. a low speed revolution static pressure load-bearing hinge is paid, it is characterized in that: comprise the load-bearing axle, hinge sleeve, the axial restraint piece, load-bearing axle empty set is on hinge sleeve, the axial restraint piece is fixed on the two ends of load-bearing axle, carry out axially locating by the axial restraint piece, be equipped with pressure oil cavity on the inner side end of the outer round surface of load-bearing axle and axial restraint piece, the inside of load-bearing axle is provided with oil circuit, one end of load-bearing axle is provided with the filler opening that communicates with oil circuit, the inside of load-bearing axle and axial restraint piece is respectively equipped with the throttle orifice that is communicated with pressure oil cavity and oil circuit, be provided with oil sealing surface in the gap between load-bearing axle and the hinge sleeve, also be provided with oil returning tube on the axial restraint piece, pressure oil cavity communicates with oil returning tube by oil sealing surface.
2. a kind of low speed revolution static pressure load-bearing hinge according to claim 1 is paid, and it is characterized in that: the outer round surface of described load-bearing axle is provided with 4-6 pressure oil cavity.
3. a kind of low speed revolution static pressure load-bearing hinge according to claim 1 and 2 is paid, and it is characterized in that: the pressure oil cavity on the outer round surface of described load-bearing axle is arranged symmetrically with.
According to claim 1 or 3 described a kind of low speed revolution static pressure load-bearing hinges pay, it is characterized in that: between described load-bearing axle and the axial restraint piece, be provided with oil sealing between described hinge sleeve and the axial restraint piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104059490A CN102913544A (en) | 2012-10-23 | 2012-10-23 | Static-pressure bearing hinge pair with low rotation speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104059490A CN102913544A (en) | 2012-10-23 | 2012-10-23 | Static-pressure bearing hinge pair with low rotation speed |
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| Publication Number | Publication Date |
|---|---|
| CN102913544A true CN102913544A (en) | 2013-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012104059490A Pending CN102913544A (en) | 2012-10-23 | 2012-10-23 | Static-pressure bearing hinge pair with low rotation speed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952797A (en) * | 2016-03-22 | 2016-09-21 | 宁波圣圭精工科技有限公司 | Static-pressure spindle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030150140A1 (en) * | 2001-09-26 | 2003-08-14 | Takemori Takayama | Coupling device for equipment implement |
| JP2004100812A (en) * | 2002-09-09 | 2004-04-02 | Hitachi Constr Mach Co Ltd | Bearing device |
| CN1821594A (en) * | 2006-01-25 | 2006-08-23 | 赵大力 | Pin shaft device with seal structure |
| CN101865340A (en) * | 2010-06-10 | 2010-10-20 | 江苏鼎晟液压有限公司 | Electrical-hydraulic center-rotating joint |
| CN102042328A (en) * | 2010-12-24 | 2011-05-04 | 东莞市尚正机电科技有限公司 | Cylindrical mechanical motion hydraulic support suspension system with high bearing capacity |
| CN202056185U (en) * | 2011-04-29 | 2011-11-30 | 无锡职业技术学院 | Improved heavy movable hinge |
| CN202883687U (en) * | 2012-10-23 | 2013-04-17 | 湖北汽车工业学院 | Low speed revolution static pressure load-bearing hinge pair |
-
2012
- 2012-10-23 CN CN2012104059490A patent/CN102913544A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030150140A1 (en) * | 2001-09-26 | 2003-08-14 | Takemori Takayama | Coupling device for equipment implement |
| JP2004100812A (en) * | 2002-09-09 | 2004-04-02 | Hitachi Constr Mach Co Ltd | Bearing device |
| CN1821594A (en) * | 2006-01-25 | 2006-08-23 | 赵大力 | Pin shaft device with seal structure |
| CN101865340A (en) * | 2010-06-10 | 2010-10-20 | 江苏鼎晟液压有限公司 | Electrical-hydraulic center-rotating joint |
| CN102042328A (en) * | 2010-12-24 | 2011-05-04 | 东莞市尚正机电科技有限公司 | Cylindrical mechanical motion hydraulic support suspension system with high bearing capacity |
| CN202056185U (en) * | 2011-04-29 | 2011-11-30 | 无锡职业技术学院 | Improved heavy movable hinge |
| CN202883687U (en) * | 2012-10-23 | 2013-04-17 | 湖北汽车工业学院 | Low speed revolution static pressure load-bearing hinge pair |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952797A (en) * | 2016-03-22 | 2016-09-21 | 宁波圣圭精工科技有限公司 | Static-pressure spindle |
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Application publication date: 20130206 |