CN104500556A - High-bearing static-pressure bulb articulated mechanism with internal feedback restrictor - Google Patents
High-bearing static-pressure bulb articulated mechanism with internal feedback restrictor Download PDFInfo
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- CN104500556A CN104500556A CN201410799357.0A CN201410799357A CN104500556A CN 104500556 A CN104500556 A CN 104500556A CN 201410799357 A CN201410799357 A CN 201410799357A CN 104500556 A CN104500556 A CN 104500556A
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Abstract
The invention discloses a high-bearing static-pressure bulb articulated mechanism with an internal feedback restrictor. An upper bulb base (2) of the articulated mechanism is fit with a lower bulb base (4) so as to form a hollow bulb base; a bulb (3) is positioned in the bulb base; a connecting rod (1) is connected with the bulb (3) and penetrates through the upper bulb base (2) to be connected with the outside; the lower bulb base (4) is internally provided with a lower static-pressure cavity (15); the bulb (3) is internally provided with two restrictor installation holes (9) which are pointed to the lower static-pressure cavity (15); small hole restrictors (5) are installed in the restrictor installation holes (9). The high-bearing static-pressure bulb articulated mechanism has the advantages of extremely high bearing capacity, low lubricating oil flow rate, low friction power consumption and the like.
Description
Technical field
The present invention relates to a kind of large carrying static pressure ball head articulated mechanism with internal-feedback throttling device, belong to mechanical design field.
Background technique
The rod member of button-head hinge to be a kind of by end be bulb is enclosed in the mechanism in ball-and-socket, and for face contacts between bulb with ball-and-socket, area of contact is larger between the two, and specific contact pressure is less, and the operating life of ball head articulated mechanism is longer.But, along with manufacturing equipment is towards the development trend of maximization, heavy loading, speed up, this kind of ball head articulated mechanism is under heavy duty and swing in high frequency, the larger force of sliding friction will produced between bulb and ball-and-socket, heating value is large, cause frictional loss aggravation between bulb and ball-and-socket, be mutually engaged both occurring even, significantly shorten operating life.In order to reduce the friction between bulb and ball-and-socket, appear at the rolling ball head articulated mechanism adding roller between ball-and-socket and bulb, but the bearing capacity of rolling ball head articulated mechanism is less than normal, impact resistance is lower, can not meet the demand of severe duty; Also have the appearance of static pressure button-head hinge in recent years, but all adopt the throttle style of level pressure oil supply system, its unit area bearing capacity is less, can not meet severe duty.
Summary of the invention
Technical problem: technical problem to be solved by this invention is, a kind of large carrying static pressure ball head articulated mechanism of band internal-feedback throttling device for heavy duty and high-frequency swing working condition is provided, make at heavy duty and high-frequency swing working condition, wearing and tearing between bulb and ball-and-socket are little, and then reduce the heating value of ball head articulated mechanism, extend the working life of ball head articulated mechanism.
Technological scheme: the invention provides a kind of large carrying static pressure ball head articulated mechanism of internal-feedback throttling device being applicable to heavy duty, swing in high frequency, this linkage comprises: connecting rod, upper ball cup, bulb, lower ball cup, orifice restriction device, oil outlet, oil-return groove, oil inlet hole, flow controller mounting hole, upper oil outlet, upper static pressure chamber, upper internal feedback path, lower internal feedback path, lower static pressure chamber; Wherein, upper ball cup and lower ball cup match the ball cup of a formation hollow, and bulb is positioned at this ball cup, and connecting rod is connected with bulb and passes upper ball cup and is connected with outside, is provided with lower static pressure chamber in lower ball cup; Be provided with two flow controller mounting holes in bulb, flow controller mounting hole points to lower static pressure chamber, and orifice restriction device is arranged in flow controller mounting hole.
The centre of the upper end of upper ball cup is provided with oil outlet, and the inside of upper ball cup is provided with ball-and-socket on half, and be provided with the upper static pressure chamber of annular in upper ball-and-socket, the inside of upper ball cup is provided with internal feedback path, and upper internal feedback path is connected with upper static pressure chamber.
Lower ball cup is arranged on the below of ball cup, is connected mutually with upper ball cup; The inside of lower ball cup is provided with half time ball-and-socket, and be provided with the lower static pressure chamber of annular in lower ball-and-socket, the inside of lower ball cup is provided with lower feedback path, and one end of lower feedback path is connected with lower oil sealing surface, and the other end is connected with upper internal feedback path.
Internal feedback static pressure spherical linkage of the present invention, pass into extreme pressure lubricant by oil inlet hole, lubricant oil flows through orifice restriction device, enters lower ball-and-socket.Part lubricant oil flows out through oil-return groove and spill port, and another part lubricant oil flows through lower internal feedback path and upper internal feedback path enters static pressure chamber.Extreme pressure lubricant produces downward power in upper ball-and-socket, power is upwards produced in lower ball-and-socket, lubricant oil due to upper ball-and-socket flows through lower static pressure chamber and lower oil sealing surface by the lubricant oil in lower ball-and-socket, to enter ball-and-socket again, therefore descend the lubricating oil pressure that in ball-and-socket, lubricating oil pressure will be greater than in upper ball-and-socket, both are the poor bearing capacity being upwards spherical linkage and can providing only.
When bulb bears downward external load, bulb will produce downward displacement, thus cause lower oil sealing surface gap to reduce, liquid resistance increases, the lubricating oil pressure entering lower static pressure chamber through orifice restriction device will increase, and will reduce through the lubricating oil pressure that lower internal feedback path and upper internal feedback path enter upper static pressure chamber, finally cause the pressure difference in ball-and-socket and lower ball-and-socket to increase, namely increase the bearing capacity of spherical linkage.
Beneficial effect: it is large especially that a kind of large carrying static pressure button-head hinge with internal-feedback throttling device that the present invention proposes has bearing capacity, and the advantage such as flow of lubrication is little, friction power loss is low.
Accompanying drawing explanation
Fig. 1 internal feedback static pressure ball head articulated mechanism schematic diagram,
Fig. 2 internal feedback static pressure ball head articulated mechanism feedback path schematic diagram,
Fig. 3 lubricant oil way schematic diagram.
Wherein have: connecting rod 1, upper ball cup 2, bulb 3, lower ball cup 4, orifice restriction device 5, oil outlet 6, oil-return groove 7, oil inlet hole 8, flow controller mounting hole 9, upper oil outlet 10, upper static pressure chamber 11, upper internal feedback path 12, lower internal feedback path 13, lower oil sealing surface 14, lower static pressure chamber 15.
Embodiment
Linkage of the present invention comprises connecting rod, upper ball cup, bulb, lower ball cup, orifice restriction device, upper internal feedback path and lower internal feedback path etc.Connecting rod is connected mutually with bulb, is provided with oil inlet hole in connecting rod, is provided with two flow controller mounting holes in bulb, and flow controller mounting hole points to lower static pressure chamber, and oil inlet hole is connected with flow controller mounting hole, and orifice restriction device is arranged in flow controller mounting hole.The upper end of upper ball cup is provided with oil outlet, and the inside of upper ball cup is provided with ball-and-socket on half, and be provided with the upper static pressure chamber of annular in upper ball-and-socket, the inside of upper ball cup is provided with internal feedback path, and upper internal feedback path is connected with upper static pressure chamber.Lower ball cup is arranged on the below of ball cup, is connected mutually with upper ball cup.The inside of lower ball cup is provided with half time ball-and-socket, and be provided with the lower static pressure chamber of annular in lower ball-and-socket, the inside of lower ball cup is provided with lower feedback path, and lower feedback path one end is connected with lower oil sealing surface, and the other end is connected with upper internal feedback path.The junction plane position of upper ball cup and lower ball cup is provided with annular oil-return groove, and annular oil-return groove is provided with several spill ports.
As depicted in figs. 1 and 2, connecting rod 1 is connected mutually with bulb 3, is provided with oil inlet hole 8 in connecting rod 1, two flow controller mounting holes 9 are provided with in bulb, flow controller mounting hole 9 points to lower static pressure chamber 15, and oil inlet hole 8 is connected with flow controller mounting hole 9, and orifice restriction device 5 is arranged in flow controller mounting hole 9.The upper end of upper ball cup is provided with oil outlet 10, and the inside of upper ball cup 2 is provided with ball-and-socket 16 on half, and be provided with the upper static pressure chamber 11 of annular in upper ball-and-socket 16, the inside of upper ball cup 2 is provided with internal feedback path 12, and upper internal feedback path 12 is connected with upper static pressure chamber 11.Lower ball cup 4 is arranged on the below of ball cup 2, is connected mutually with upper ball cup 2.The inside of lower ball cup 4 is provided with half time ball-and-socket 17, and be provided with the lower static pressure chamber 15 of annular in lower ball-and-socket 17, the inside of lower ball cup 4 is provided with lower feedback path 13, and lower feedback path 13 one end is connected with lower oil sealing surface 14, and the other end is connected with upper internal feedback path 12.The junction plane position of upper ball cup 2 and lower ball cup 4 is provided with annular oil-return groove 7, and annular oil-return groove is provided with several spill ports 6.
As shown in Figure 3, during work, pass into extreme pressure lubricant by oil inlet hole 8, lubricant oil flows through flow controller mounting hole 9 and orifice restriction device 5, enters lower static pressure chamber 15.The lubricant oil part entering static pressure chamber 15 upwards flows out through oil-return groove 7 and spill port 6, another part lubricant oil flows through internal feedback path 13 downwards successively and upper internal feedback path 12 enters static pressure chamber 11, the lubricant oil part entering static pressure chamber 11 flows out through oil-return groove 7 and spill port 6 downwards, and a part upwards flows out through upper oil outlet 10.Extreme pressure lubricant produces downward pressure in upper ball-and-socket 16, produce in lower ball-and-socket 17 and upward pressure, lubricant oil due to upper ball-and-socket 16 flows through lower oil sealing surface 14 by the lubricant oil in lower static pressure chamber 15 to enter upper ball-and-socket 16 again, therefore the pressure that in static pressure chamber 15, lubricating oil pressure will be greater than in upper static pressure chamber 11 is descended, therefore the spherical linkage very large upwards bearing capacity that can provide.
When bulb 3 bears downward external load, bulb will produce downward displacement, thus cause lower oil sealing surface 14 gap to reduce, liquid resistance increases, the lubricating oil pressure entering lower static pressure chamber 15 through orifice restriction device 5 increases, and the lubricating oil pressure reduction in upper static pressure chamber 11 is entered through lower internal feedback path 13 and upper internal feedback path 12, finally cause the pressure difference in ball-and-socket 16 and lower ball-and-socket 17 to increase, namely the upwards bearing capacity of spherical linkage increases.
Claims (3)
1. the large carrying static pressure ball head articulated mechanism with internal-feedback throttling device, is characterized in that: this linkage comprises: connecting rod (1), upper ball cup (2), bulb (3), lower ball cup (4), orifice restriction device (5), oil outlet (6), oil-return groove (7), oil inlet hole (8), flow controller mounting hole (9), upper oil outlet (10), upper static pressure chamber (11), upper internal feedback path (12), lower internal feedback path (13), lower static pressure chamber (15); Wherein, upper ball cup (2) and lower ball cup (4) match the ball cup of a formation hollow, bulb (3) is positioned at this ball cup, connecting rod (1) is connected with bulb (3) and passes upper ball cup (2) and is connected with outside, is provided with lower static pressure chamber (15) in lower ball cup (4); Be provided with two flow controller mounting holes (9) in bulb (3), flow controller mounting hole (9) points to lower static pressure chamber (15), and orifice restriction device (5) is arranged in flow controller mounting hole (9).
2. a kind of large carrying static pressure ball head articulated mechanism with internal-feedback throttling device according to claim 1, it is characterized in that: the centre of the upper end of upper ball cup (2) is provided with oil outlet (10), the inside of upper ball cup (2) is provided with ball-and-socket on half (16), the upper static pressure chamber (11) of annular is provided with in upper ball-and-socket (16), the inside of upper ball cup (2) is provided with internal feedback path (12), and upper internal feedback path (12) is connected with upper static pressure chamber (11).
3. a kind of large carrying static pressure ball head articulated mechanism with internal-feedback throttling device according to claim 1, is characterized in that: lower ball cup (4) is arranged on the below of ball cup (2), is connected mutually with upper ball cup (2); The inside of lower ball cup (4) is provided with half time ball-and-socket (17), the lower static pressure chamber (15) of annular is provided with in lower ball-and-socket (17), the inside of lower ball cup (4) is provided with lower feedback path (13), one end of lower feedback path (13) is connected with lower oil sealing surface (14), and the other end is connected with upper internal feedback path (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410799357.0A CN104500556B (en) | 2014-12-18 | 2014-12-18 | High-bearing static-pressure bulb articulated mechanism with internal feedback restrictor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410799357.0A CN104500556B (en) | 2014-12-18 | 2014-12-18 | High-bearing static-pressure bulb articulated mechanism with internal feedback restrictor |
Publications (2)
| Publication Number | Publication Date |
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| CN104500556A true CN104500556A (en) | 2015-04-08 |
| CN104500556B CN104500556B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410799357.0A Expired - Fee Related CN104500556B (en) | 2014-12-18 | 2014-12-18 | High-bearing static-pressure bulb articulated mechanism with internal feedback restrictor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763137A (en) * | 2016-12-20 | 2017-05-31 | 安徽天裕汽车零部件制造有限公司 | A kind of big carrying static pressure ball head articulated mechanism with internal-feedback throttling device |
| CN106764353A (en) * | 2016-12-19 | 2017-05-31 | 安徽天裕汽车零部件制造有限公司 | A kind of static pressure button-head hinge using two-way internal-feedback throttling technology |
| CN115351561A (en) * | 2022-10-21 | 2022-11-18 | 中国机械总院集团海西(福建)分院有限公司 | Hydrostatic pressure guide rail assembly applied to machine tool and machine tool |
| CN115351562A (en) * | 2022-10-21 | 2022-11-18 | 中国机械总院集团海西(福建)分院有限公司 | Hydrostatic pressure spindle unit and lathe applied to lathe |
| CN115351595A (en) * | 2022-10-21 | 2022-11-18 | 中国机械总院集团海西(福建)分院有限公司 | Feedback type throttling device applied to machine tool and machine tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1399174A (en) * | 1964-06-18 | 1965-05-14 | Alford & Alder Engineers Ltd | Improvements to ball joints |
| JP2002213430A (en) * | 2001-01-15 | 2002-07-31 | Otics Corp | Ball joint |
| WO2006009175A1 (en) * | 2004-07-20 | 2006-01-26 | Komatsu Ltd. | Spherical slide bearing system |
| CN102221039A (en) * | 2011-06-09 | 2011-10-19 | 南京二机齿轮机床有限公司 | Dynamic and static pressure ball socket bearing structure for high speed gear shaper |
| CN203272425U (en) * | 2013-04-16 | 2013-11-06 | 玉环县锐利机械有限公司 | Improved automotive steering ball head |
-
2014
- 2014-12-18 CN CN201410799357.0A patent/CN104500556B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1399174A (en) * | 1964-06-18 | 1965-05-14 | Alford & Alder Engineers Ltd | Improvements to ball joints |
| JP2002213430A (en) * | 2001-01-15 | 2002-07-31 | Otics Corp | Ball joint |
| WO2006009175A1 (en) * | 2004-07-20 | 2006-01-26 | Komatsu Ltd. | Spherical slide bearing system |
| CN102221039A (en) * | 2011-06-09 | 2011-10-19 | 南京二机齿轮机床有限公司 | Dynamic and static pressure ball socket bearing structure for high speed gear shaper |
| CN203272425U (en) * | 2013-04-16 | 2013-11-06 | 玉环县锐利机械有限公司 | Improved automotive steering ball head |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764353A (en) * | 2016-12-19 | 2017-05-31 | 安徽天裕汽车零部件制造有限公司 | A kind of static pressure button-head hinge using two-way internal-feedback throttling technology |
| CN106763137A (en) * | 2016-12-20 | 2017-05-31 | 安徽天裕汽车零部件制造有限公司 | A kind of big carrying static pressure ball head articulated mechanism with internal-feedback throttling device |
| CN115351561A (en) * | 2022-10-21 | 2022-11-18 | 中国机械总院集团海西(福建)分院有限公司 | Hydrostatic pressure guide rail assembly applied to machine tool and machine tool |
| CN115351562A (en) * | 2022-10-21 | 2022-11-18 | 中国机械总院集团海西(福建)分院有限公司 | Hydrostatic pressure spindle unit and lathe applied to lathe |
| CN115351595A (en) * | 2022-10-21 | 2022-11-18 | 中国机械总院集团海西(福建)分院有限公司 | Feedback type throttling device applied to machine tool and machine tool |
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| Publication number | Publication date |
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| CN104500556B (en) | 2017-02-22 |
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