CN211059201U - Gas-oil mixed static pressure guide rail slide carriage - Google Patents
Gas-oil mixed static pressure guide rail slide carriage Download PDFInfo
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- CN211059201U CN211059201U CN201922029807.9U CN201922029807U CN211059201U CN 211059201 U CN211059201 U CN 211059201U CN 201922029807 U CN201922029807 U CN 201922029807U CN 211059201 U CN211059201 U CN 211059201U
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Abstract
The utility model discloses a gas-oil mixture hydrostatic guideway carriage apron, include: with guide rail plane clearance fit's slide carriage body, set up this internal throttle pipeline of slide carriage, throttle pipeline includes an at least throttle oil pipe way and two piece at least throttle gas pipelines, throttle oil pipe way is located between two adjacent throttle gas pipelines, and still be equipped with between throttle oil pipe way and the throttle gas pipeline and separate the groove, all be equipped with a plurality of on throttle oil pipe way, the throttle gas pipeline and run through in the planar orifice in slide carriage body bottom. By the mode, the utility model can realize the mixed lubrication of air and oil in one slide carriage; meanwhile, the series connection of an oil film area and an air film area can be effectively blocked, so that the bearing capacity and the rigidity of the guide rail system are improved.
Description
Technical Field
The utility model relates to a hydrostatic guideway technical field especially relates to a gas-oil mixture hydrostatic guideway carriage apron.
Background
With the rapid development of leading-edge technologies such as national defense industry, aerospace and aviation, electronic technology and the like, the requirements on the precision of ultra-precision machining and ultra-precision measuring equipment are more and more strict. The development of ultra-precision machining and detection technology has become an important development direction in the current mechanical industry.
In ultra-precision machining and inspection equipment, extremely high requirements are placed on high speed and high motion accuracy of moving parts. The static pressure air guide rail is a sliding guide rail which forcibly pumps high-pressure air into a small gap between a slide carriage and the guide rail by using a pressure pump, and is widely applied to a motion system of ultra-precision machining and detection equipment due to small friction factor, long service life and uniform temperature distribution.
The aerostatic guideway is lubricated by air, but the load-bearing capacity and rigidity are low due to the compressible property of air. The gas-liquid mixed lubrication mode becomes a feasible solution, and the slide carriage is an important part of the mixed lubrication guide rail, so new requirements on the structure and the function of the slide carriage are also provided.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a gas-oil mixture hydrostatic guideway carriage, and gas or fluid can enter into the clearance formation air film/oil film between guide rail and the carriage through the pipeline in the carriage, carries out the lubricated support of guide rail.
In order to solve the technical problem, the utility model discloses a technical scheme be: provided is an air-oil mixed hydrostatic guideway carriage comprising: with guide rail plane clearance fit's slide carriage body, set up this internal throttle pipeline of slide carriage, throttle pipeline includes an at least throttle oil pipe way and two piece at least throttle gas pipelines, throttle oil pipe way is located between two adjacent throttle gas pipelines, and still be equipped with between throttle oil pipe way and the throttle gas pipeline and separate the groove, all be equipped with a plurality of on throttle oil pipe way, the throttle gas pipeline and run through in slide carriage body bottom planar first orifice and second orifice.
In a preferred embodiment of the present invention, the throttle pipe communicates with the same inlet pipe, and the throttle pipe and the inlet pipe are distributed perpendicular to each other.
In a preferred embodiment of the present invention, there are two throttling oil pipelines, one throttling oil pipeline, and the throttling oil pipeline is located in the middle of the slide carriage body, and the throttling oil pipelines are symmetrically distributed on both sides of the throttling oil pipeline and parallel to the throttling oil pipeline.
In a preferred embodiment of the present invention, the number of the first throttle holes and the number of the second throttle holes are fifteen, five first throttle holes are uniformly distributed on the throttle oil pipeline, and five second throttle holes are uniformly distributed on each throttle gas pipeline.
In a preferred embodiment of the present invention, an oil restrictor is disposed at an orifice of a first orifice located on the throttle oil line, and an air restrictor is disposed at an orifice of a second orifice located on the throttle air line.
In a preferred embodiment of the present invention, the diameter of the oil orifice of the oil restrictor is 0.3mm, and the diameter of the air orifice of the air restrictor is 0.1 mm.
In a preferred embodiment of the present invention, the oil-gas recovery device further comprises an oil-gas recovery pipeline, wherein the oil-gas recovery pipeline is disposed above the partition groove and is parallel to the throttling oil pipeline and the throttling gas pipeline.
In a preferred embodiment of the present invention, the oil gas recovery pipeline is evenly distributed with oil gas return holes.
In a preferred embodiment of the present invention, the oil gas recovery pipeline has two oil gas return holes, and the oil gas return holes are ten in total, and each oil gas recovery pipeline is evenly provided with five oil gas return holes.
In a preferred embodiment of the present invention, the oil gas recovery pipeline is connected to an oil reservoir through an external pipeline, and a vacuum pump and an oil gas separator are disposed on the external pipeline.
The utility model has the advantages that: the utility model arranges the throttle oil pipeline and the throttle air pipeline in the slide carriage body, and arranges the throttle hole on the pipeline, so that an oil film area and an air film area are formed in the clearance between the slide carriage and the guide rail simultaneously, namely, the gas-oil mixed lubrication can be realized in one slide carriage; meanwhile, a separation groove is arranged between the throttling oil pipeline and the throttling air pipeline, the pressure of the region of the separation groove is reduced, static pressure is difficult to form, and the series connection of an oil film region and an air film region can be effectively blocked, so that the running stability of the guide rail system is ensured;
furthermore the utility model discloses still lead to and set up the oil gas recovery pipeline, through the oil gas suction that the little vacuum mode will dissipate, avoid setting up the oil storage tank, can form the vacuum preloading moreover between guide rail and carriage apron to improve guide rail system rigidity.
Drawings
FIG. 1 is a cross-sectional view of the air-oil mixing hydrostatic guideway carriage of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a sectional view taken along line A-A of FIG. 1;
the parts in the drawings are numbered as follows: 1. the device comprises a slide carriage body, 2, a throttling oil pipeline, 3, a throttling gas pipeline, 21, a first throttling hole, 31, a second throttling hole, 22, an oil film area, 32, a gas film area, 23, an oil throttling device, 33, a gas throttling device, 4, a partition groove, 5, a gas inlet pipe, 6, an oil gas recovery pipeline, 61, an oil gas return hole, 7, an external pipeline, 8 an oil storage device, 9, a vacuum pump, 10 and an oil-gas separator.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to fig. 1 to 3, the present invention includes:
an air-oil hybrid hydrostatic guideway carriage comprising: the slide carriage comprises a slide carriage body 1 in clearance fit with a guide rail plane and a throttling pipeline arranged in the slide carriage body 1, wherein the throttling pipeline comprises at least one throttling oil pipeline 2 and at least two throttling air pipelines 3, the throttling oil pipeline 2 is positioned between every two adjacent throttling air pipelines 3, a plurality of first throttling holes 21 and second throttling holes 31 penetrating through the bottom plane of the slide carriage body 1 are respectively arranged on the throttling oil pipeline 2 and the throttling air pipelines 3, and a lubricating oil film area 22 and an air film area 32 are formed in a clearance between the guide rail and the slide carriage in a small hole throttling mode;
as shown in fig. 1 and 2, a partition groove 4 is further provided between the oil throttle line 2 and the air throttle line 3, the partition groove 4 is a groove opened on the bottom plane of the slide carriage body 1, the high-pressure lubricating oil in the oil throttle line 2 is output from the first orifice 21 at a certain pressure, and is dispersed to both sides with the first orifice 21 as the center to form an oil film region 22, wherein when the high-pressure lubricating oil is dispersed to the partition groove region, the lubricating oil pressure in the partition groove region is reduced due to the increase of the contact area between the lubricating oil and the partition groove 4, static pressure is hard to be formed, and an oil film cannot be formed in the partition groove region; similarly, the high-pressure air in the throttle pipe 3 is output from the second orifice 31 at a constant pressure, and is dispersed to both sides with the second orifice 31 as the center to form the air film region 32, wherein when the high-pressure air is dispersed to the cut-off groove region, the contact area between the high-pressure air and the cut-off groove 4 is increased, so that the air pressure in the cut-off groove region is reduced, the static pressure is difficult to be formed, and the air film cannot be formed in the cut-off groove region; therefore, in this embodiment, the serial connection of the oil film region 22 and the air film region 32 can be effectively blocked by the blocking groove 4, so as to ensure the operation stability of the guideway system.
With reference to fig. 2, in this embodiment, the throttle pipe 3 is communicated with the same air inlet pipe 5, and the throttle pipe 3 and the air inlet pipe 5 are distributed perpendicular to each other.
Specifically, two throttling air pipelines 3 are provided, one throttling oil pipeline 2 is provided, the throttling oil pipelines 2 are located in the middle of the slide carriage body 1, and the throttling air pipelines 3 are symmetrically distributed on two sides of the throttling oil pipelines 2 and are parallel to the throttling oil pipelines 2.
The total number of the first throttle holes 21 and the second throttle holes 31 is fifteen, five first throttle holes 21 are uniformly distributed on the throttle oil pipeline 2, and five second throttle holes 31 are also uniformly distributed on each throttle gas pipeline 3;
an oil restrictor 23 is attached to an orifice of the first orifice 21 in the orifice oil line 2, and an air restrictor 33 is attached to an orifice of the second orifice 31 in the orifice air line 3.
According to theoretical calculation, parameters of the static pressure guide rail are related to the characteristics Fg of lubricating fluid, fluid supply pressure Fp and a throttling hole size factor Fd, so that in the scheme, the diameters of the throttling oil pipeline 2 and the throttling air pipeline 3 are unified, the replaceable oil throttle 23 and the replaceable air throttle 33 are arranged, a static pressure lubricating layer is realized, and the smoothness of the slide carriage operation is finally realized by adjusting air inlet pressure and oil pressure. In this embodiment, the aperture of the oil orifice of the oil restrictor 23 is 0.3mm, and the aperture of the air orifice of the air restrictor 33 is 0.1 mm.
With continuing reference to fig. 1 and 2, the air-oil mixing hydrostatic guideway carriage further comprises an oil gas recovery pipeline 6, wherein the oil gas recovery pipeline 6 is arranged above the partition groove 4 and is parallel to the throttling oil pipeline 2 and the throttling air pipeline 3;
oil gas return holes 61 are evenly distributed on the oil gas recovery pipeline 6, the oil gas return holes 61 penetrate through the partition grooves 4, and dissipated oil gas flows back to the oil gas recovery pipeline 6 through the oil gas return holes 61.
In this embodiment, the oil gas recovery pipeline 6 has two, ten oil gas return holes 61 are total, every oil gas return hole 61 is evenly distributed on the oil gas recovery pipeline 6.
The oil gas recovery pipe 6 is connected to an oil reservoir 8 through an external pipeline 7, and a vacuum pump 9 and an oil gas separator 10 are mounted on the external pipeline 7. A vacuum pump 9 is arranged on an external pipeline 7 connected with the oil gas recovery pipeline 6, on one hand, the vacuum pump 9 can generate a vacuum degree of about 1mba to suck out recovered oil gas, and the oil gas is separated through an oil-gas separator 10 to recover oil to an oil reservoir 8; on the other hand, a vacuum pump 9 is adopted to vacuumize between the slide carriage body 1 and the plane of the guide rail, so that vacuum preloading can be formed between the guide rail and the slide carriage body 1, and the rigidity of the guide rail system is improved.
In conclusion, the utility model can realize the gas-oil mixed lubrication in a slide carriage; meanwhile, a separation groove is arranged between the throttling oil pipeline and the throttling air pipeline, the pressure of the region of the separation groove is reduced, static pressure is difficult to form, and the series connection of an oil film region and an air film region can be effectively blocked;
furthermore the utility model discloses still lead to and set up the oil gas recovery pipeline, through the oil gas suction that the little vacuum mode will dissipate, avoid setting up the oil storage tank, can form the vacuum preloading moreover between guide rail and carriage apron to improve guide rail system rigidity.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the products of the present invention are usually placed when used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. An air-oil hybrid hydrostatic guideway carriage comprising: with slide carriage body of guide rail plane clearance fit (1), set up throttle pipeline in slide carriage body (1), its characterized in that, throttle pipeline includes at least one throttle oil pipeline (2) and two piece at least throttle gas pipeline (3), throttle oil pipeline (2) are located between two adjacent throttle gas pipelines (3), and still be equipped with between throttle oil pipeline (2) and throttle gas pipeline (3) and separate disconnected groove (4), all be equipped with a plurality of on throttle oil pipeline (2), the throttle gas pipeline (3) and run through in slide carriage body (1) bottom planar first orifice (21) and second orifice (31).
2. The air-oil hybrid hydrostatic guideway carriage of claim 1, characterized in that the throttle air line (3) communicates with the same air intake pipe (5), and the throttle air line (3) and the air intake pipe (5) are distributed perpendicular to each other.
3. The gas-oil mixing hydrostatic guideway carriage according to claim 2, characterized in that there are two throttling gas pipelines (3), one throttling oil pipeline (2), the throttling oil pipeline (2) is located in the middle of the carriage body (1), and the throttling gas pipelines (3) are symmetrically distributed on both sides of the throttling oil pipeline (2) and are parallel to the throttling oil pipeline (2).
4. The air-oil hybrid hydrostatic guideway carriage of claim 3, characterized in that the first and second orifices (21, 31) are fifteen in total, five first orifices (21) are uniformly distributed in the oil throttle line (2), and five second orifices (31) are uniformly distributed in each air throttle line (3).
5. The air-oil hybrid hydrostatic guideway carriage of claim 4, characterized in that an oil restrictor (23) is provided at the orifice of the first orifice (21) on the throttled oil line (2) and an air restrictor (33) is provided at the orifice of the second orifice (31) on the throttled air line (3).
6. The air-oil hybrid hydrostatic guideway carriage of claim 5, characterized in that the aperture of the oil orifice on the oil restrictor (23) is 0.3mm and the aperture of the air orifice on the air restrictor (33) is 0.1 mm.
7. The air-oil mixing hydrostatic guideway carriage according to any of claims 1-6, characterized by further comprising an oil gas recovery pipeline (6), wherein the oil gas recovery pipeline (6) is arranged above the partition groove (4) and is parallel to the throttling oil pipeline (2) and the throttling air pipeline (3).
8. The air-oil mixing hydrostatic guideway carriage of claim 7, characterized in that the oil gas recovery pipeline (6) is evenly provided with oil gas return holes (61).
9. The air-oil mixing hydrostatic guideway carriage of claim 8, characterized in that there are two oil gas recovery pipelines (6), ten oil gas return holes (61) are provided, and five oil gas return holes (61) are uniformly distributed on each oil gas recovery pipeline (6).
10. The air-oil hydrostatic guideway carriage of claim 8, characterized in that the oil gas recovery line (6) is connected to an oil reservoir (8) by an external pipe (7), and the external pipe (7) is provided with a vacuum pump (9) and an oil gas separator (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922029807.9U CN211059201U (en) | 2019-11-21 | 2019-11-21 | Gas-oil mixed static pressure guide rail slide carriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922029807.9U CN211059201U (en) | 2019-11-21 | 2019-11-21 | Gas-oil mixed static pressure guide rail slide carriage |
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| Publication Number | Publication Date |
|---|---|
| CN211059201U true CN211059201U (en) | 2020-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922029807.9U Active CN211059201U (en) | 2019-11-21 | 2019-11-21 | Gas-oil mixed static pressure guide rail slide carriage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762117A (en) * | 2019-11-21 | 2020-02-07 | 江苏集萃精凯高端装备技术有限公司 | An air-oil hybrid static pressure guide rail slide |
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2019
- 2019-11-21 CN CN201922029807.9U patent/CN211059201U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762117A (en) * | 2019-11-21 | 2020-02-07 | 江苏集萃精凯高端装备技术有限公司 | An air-oil hybrid static pressure guide rail slide |
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