CN102357804A - Static-pressure guide rail structure and engineering machinery with same - Google Patents
Static-pressure guide rail structure and engineering machinery with same Download PDFInfo
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- CN102357804A CN102357804A CN2011103014036A CN201110301403A CN102357804A CN 102357804 A CN102357804 A CN 102357804A CN 2011103014036 A CN2011103014036 A CN 2011103014036A CN 201110301403 A CN201110301403 A CN 201110301403A CN 102357804 A CN102357804 A CN 102357804A
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- hydrostatic slideway
- static
- guide rail
- oil
- pressure guide
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Abstract
The invention provides a static-pressure guide rail structure and an engineering machinery with same. The static-pressure guide rail structure comprises a static-pressure guide rail plate, a moving part connected with the static-pressure guide rail plate, a sealing element and oil return holes, wherein, the static-pressure guide rail plate and the moving part are internally equipped with oil inlet holes; the sealing element can prevent static-pressure oil from overflowing from the static-pressure guide rail plate and is arranged outside the static-pressure guide rail plate; and the oil return holes are arranged in the static-pressure guide rail plate and the moving part and are communicated with a hydraulic oil tank, and the oil return openings of the oil return holes are positioned on the static-pressure guide rail plate and are located between an oil seal line of the static-pressure guide rail plate and the sealing element. The static-pressure guide rail structure has the advantages of simple structure and stable performances, and can eliminate the phenomenon of oil leakage and reduce the casting difficulty of the parts of a machine tool.
Description
Technical field
The present invention relates to engineering machinery field, be specifically related to a kind of hydrostatic slideway structure and have its engineering machinery.
Background technology
In recent years, along with country continues to increase the dynamics of investment of Aero-Space and energy industry, the quantity and the quality requirements of heavy machine tool constantly promote; And hydrostatic slideway is because its coefficient of friction is low; Long service life, velocity interval is wide, and resistance to shock is good; The kinematic accuracy advantages of higher is widely applied on heavy machine tool.The oil return mode of existing hydrostatic slideway mainly adopts natural back flow; With bed ways is example; Flowing through sealing oil edge after static pressure oil gets into from the static pressure chamber does not promptly artificially control; Mainly be swab case to be installed in the lathe bed both sides or directly to be cast out to connect oil pocket, and be cast into oil returning tube in lathe bed inside and be used for oil return.
Mainly there is following shortcoming in above-mentioned oil return mode:
1, oil return speed is uncontrollable, owing to adopt the mode of nature oil return; Just adopt the method for simple oil,, static pressure oil is refluxed slowly through the continuous reduction of pipeline height toward lower stream; If lathe bed is long and temperature is lower; Because influences such as liquid resistance cause a large amount of long-pending oil in lathe bed inside, it is many inflow to occur, flows out few phenomenon.
2; Owing to making or the easy oil leakage phenomenon that produces of assembling reason; Because of its spill port all is that casting is imbedded in the body time, if appearring in casting, defective oil such as sand holes or bubble will ooze out, in addition owing to the leakage of oil situation also can appear in reasons such as assemblings such as swab case are improper; Cause the long-pending oily phenomenon in lathe bed bottom, influence appearance of the machine tool and cause waste.
Summary of the invention
In order to overcome the above-mentioned defective and the deficiency of prior art; First purpose of the present invention is to provide a kind of hydrostatic slideway structure of simple in structure and stable performance; Comprise: hydrostatic slideway plate, the moving-member that is connected with the hydrostatic slideway plate; Be provided with fuel feed hole in hydrostatic slideway plate and the moving-member, this hydrostatic slideway structure also comprises: be used to the seal that stops static pressure oil to overflow from the hydrostatic slideway plate, seal is installed in the outside of hydrostatic slideway plate; Be arranged on the spill port in hydrostatic slideway plate and the moving-member; Spill port is communicated with hydraulic oil container; The oil return opening of spill port is positioned on the hydrostatic slideway plate, and between the oil sealing line and seal of hydrostatic slideway plate.
In order to overcome the above-mentioned defective and the deficiency of prior art, second purpose of the present invention is to provide a kind of engineering machinery of using above-mentioned hydrostatic slideway structure.
Various embodiments of the present invention are passed through at hydrostatic slideway plate arranged outside seal; The sealing part stops that the static pressure oil spill that flows through sealing oil edge goes out; And can make the supercharging of static pressure oil, get into oil return opening apace, and then directly reflux through spill port; Thereby eliminate oil leakage phenomenon and reduce the casting difficulty of machine part, simple in structure, stable performance.
Description of drawings
Shown in Figure 1 for the front view of hydrostatic slideway structure embodiment of the present invention;
Shown in Figure 2 is the corresponding structural representation of A-A hatching line among Fig. 1;
Shown in Figure 3 is I place enlarged drawing among Fig. 2.
The specific embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Like Fig. 1-shown in Figure 3, hydrostatic slideway structure embodiment of the present invention comprises: hydrostatic slideway plate 2, moving-member 7, seal 6 and spill port 5; Wherein, hydrostatic slideway plate 2 is connected with moving-member 7, as can hydrostatic slideway plate 2 being installed on the moving-member 7 through screw 3; Be provided with fuel feed hole 4 in hydrostatic slideway plate 2 and the moving-member 7; Seal 6 is installed in the outside of hydrostatic slideway plate 2, is used to stop static pressure oil to overflow from hydrostatic slideway plate 2; Spill port 5 is arranged in hydrostatic slideway plate 2 and the moving-member 7, and is communicated with (as being communicated with through the reflux line in the lathe bed) with hydraulic oil container, and its oil return opening 51 is positioned on the hydrostatic slideway plate 2, and between the oil sealing line and seal 6 of hydrostatic slideway plate 2.
Preferably, the hydrostatic slideway structure also comprises baffle plate 8, and this baffle plate 8 is used for seal 6 is fixed on hydrostatic slideway plate 2 outsides; When it will be understood by those skilled in the art that concrete operations, can adopt the mode beyond the baffle plate that seal 6 is fixed, directly adopt elastomeric material to process such as seal 6.Further preferably, baffle plate 8 is installed in the outside of seal 6 through screw 1, with fixing seals 6.
Preferably, in order to strengthen fixed effect, the shape of baffle plate 8 can be consistent with the shape of seal 6, as be a kind of baffle plate of hermetically-sealed construction.During concrete operations, structure that baffle plate 8 can be formed in one or segmental structure; Seal 6 also can be integrated structure or segmental structure.
Preferably, oil return opening 51 next-door neighbour's seals 6 are provided with, and are convenient to rapid oil return.
The operation principle of above-mentioned hydrostatic slideway is: static pressure oil enters into the ring-like oil pocket 41 of hydrostatic slideway plate 2 from fuel feed hole 4; After ring-like oil pocket 41 is filled with; Static pressure oil flows through screw 3 closing the sealing oil edge at position, and hydrostatic slideway plate 2 is lifted by oil film, and this moment, moving-member 7 can move.The static pressure oil that flows through sealing oil edge gets into the annular region between hydrostatic slideway plate 2 and the seal 6.Because baffle plate 8 is fixed on the outside of hydrostatic slideway plate 2 with seal 6, so static pressure oil can't overflow through seal 6.Owing to the pressure effect of seal 6 to its generation, static pressure oil can only turn back to hydraulic oil container from oil return opening 51 simultaneously.
It will be understood by those skilled in the art that above-mentioned hydrostatic slideway structure can be applied to various engineering machinery.
The present invention respectively installs embodiment increases seal through the outside at hydrostatic slideway plate sealing oil edge; And between the sealing oil edge outside and seal, increase spill port; Static pressure oil flows out the back owing to receive the barrier oil pressure rising of seal from sealing oil edge; Flow back into hydraulic oil container apace, and can avoid contacting with external environment; Owing to the sealing function of seal, static pressure oil does not contact with the external world, can not pollute, and has reduced oil strain pressure, the waste that can also avoid the member trapped fuel to cause too much simultaneously; In addition owing to need not cast pipe laying and parts such as assembling swab case etc., thereby reduced the difficulty of casting and assembling.
More than be merely preferred embodiment of the present invention, or not all within spirit of the present invention and principle in order to restriction the present invention, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. hydrostatic slideway structure; Comprise: hydrostatic slideway plate (2), the moving-member (7) that is connected with said hydrostatic slideway plate (2); Be provided with fuel feed hole (4) in said hydrostatic slideway plate (2) and the moving-member (7), it is characterized in that, said hydrostatic slideway structure also comprises:
Be used to the seal (6) that stops static pressure oil to overflow from said hydrostatic slideway plate (2), said seal (6) is installed in the outside of said hydrostatic slideway plate (2);
Be arranged on the spill port (5) in said hydrostatic slideway plate (2) and the moving-member (7); Said spill port (5) is communicated with hydraulic oil container; The oil return opening (51) of said spill port (5) is positioned on the said hydrostatic slideway plate (2), and is positioned between the oil sealing line and said seal (6) of said hydrostatic slideway plate (2).
2. hydrostatic slideway structure according to claim 1 is characterized in that, also comprises: the baffle plate (8) that is used for said seal (6) is fixed on said hydrostatic slideway plate (2) outside.
3. hydrostatic slideway structure according to claim 2 is characterized in that, said baffle plate (8) is installed in the outside of said seal (6) through screw (1).
4. hydrostatic slideway structure according to claim 2 is characterized in that, the shape of said baffle plate (8) is consistent with the shape of said seal (6).
5. hydrostatic slideway structure according to claim 2 is characterized in that, structure or segmental structure that said baffle plate (8) is formed in one; Structure or segmental structure that said seal (6) is formed in one.
6. require each described hydrostatic slideway structure among the 1-5 according to aforesaid right, it is characterized in that, said oil return opening (51) is close to said seal (6) setting.
7. an engineering machinery is characterized in that, comprises like each described hydrostatic slideway structure among the above-mentioned claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103014036A CN102357804A (en) | 2011-10-09 | 2011-10-09 | Static-pressure guide rail structure and engineering machinery with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103014036A CN102357804A (en) | 2011-10-09 | 2011-10-09 | Static-pressure guide rail structure and engineering machinery with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102357804A true CN102357804A (en) | 2012-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103014036A Pending CN102357804A (en) | 2011-10-09 | 2011-10-09 | Static-pressure guide rail structure and engineering machinery with same |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0415374B1 (en) * | 1989-08-30 | 1994-11-09 | Toyoda Koki Kabushiki Kaisha | Feed mechanism with a sliding member guided by a hydrostatic bearing |
| CN201257596Y (en) * | 2008-08-29 | 2009-06-17 | 天水锻压机床有限公司 | Static pressure down loading guide rail |
| JP2011158018A (en) * | 2010-01-29 | 2011-08-18 | Mitsubishi Heavy Ind Ltd | Hydrostatic pressure guide device and machine tool equipped with the same |
| CN102172837A (en) * | 2011-03-17 | 2011-09-07 | 江苏新瑞重工科技有限公司 | Plane sealing structure of fluid unloading cavity for machine tool guide rail |
| CN202292099U (en) * | 2011-10-09 | 2012-07-04 | 上海三一精机有限公司 | Static pressure guide rail structure and engineering machinery provided with same |
-
2011
- 2011-10-09 CN CN2011103014036A patent/CN102357804A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0415374B1 (en) * | 1989-08-30 | 1994-11-09 | Toyoda Koki Kabushiki Kaisha | Feed mechanism with a sliding member guided by a hydrostatic bearing |
| CN201257596Y (en) * | 2008-08-29 | 2009-06-17 | 天水锻压机床有限公司 | Static pressure down loading guide rail |
| JP2011158018A (en) * | 2010-01-29 | 2011-08-18 | Mitsubishi Heavy Ind Ltd | Hydrostatic pressure guide device and machine tool equipped with the same |
| CN102172837A (en) * | 2011-03-17 | 2011-09-07 | 江苏新瑞重工科技有限公司 | Plane sealing structure of fluid unloading cavity for machine tool guide rail |
| CN202292099U (en) * | 2011-10-09 | 2012-07-04 | 上海三一精机有限公司 | Static pressure guide rail structure and engineering machinery provided with same |
Non-Patent Citations (1)
| Title |
|---|
| 余之泳: "《镶装支承块式闭式静压导轨及阻尼》", 《机床与液压》, no. 04, 29 August 1983 (1983-08-29), pages 37 - 39 * |
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Application publication date: 20120222 |