CN103671789A - Ball leading screw - Google Patents
Ball leading screw Download PDFInfo
- Publication number
- CN103671789A CN103671789A CN201210404154.8A CN201210404154A CN103671789A CN 103671789 A CN103671789 A CN 103671789A CN 201210404154 A CN201210404154 A CN 201210404154A CN 103671789 A CN103671789 A CN 103671789A
- Authority
- CN
- China
- Prior art keywords
- ball guide
- screw
- fluid
- guide screw
- nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012530 fluid Substances 0.000 claims abstract description 65
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 description 10
- 239000003595 mist Substances 0.000 description 9
- 239000003921 oil Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 230000012447 hatching Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a ball lead screw with a screw rod, a screw cap and at least one fluid channel, wherein the outer ring surface of the screw rod is provided with a first thread, the inner ring surface of the screw cap is provided with a second thread corresponding to the first thread, the screw cap is sleeved on the outer ring surface of the screw rod by a plurality of balls accommodated in the first thread and the second thread, in addition, the at least one fluid channel is formed in the screw cap, the fluid channel is provided with at least one inflow end and at least one outflow end, the outflow end is positioned on the position, not the second thread, of the inner ring surface of the screw cap, and the inflow end is positioned on the side edge or the top surface of the screw cap. The invention can directly take away the heat energy generated when the ball guide screw rotates, thereby improving the precision of the ball guide screw.
Description
Technical field
The present invention relates to a kind of ball guide screw, in more detail, the present invention relates to a kind of ball guide screw of tool refrigerating function.
Background technique
Along with scientific and technological progress rapidly, the technology of toolroom machine is now developed in high-speed and highi degree of accuracy, and the most important driving component of toolroom machine is ball guide screw, general ball guide screw mainly comprises screw rod, nut and ball, this ball guide screw also contacts with mutual friction mode and obtains power at this screw rod and point between nut by this ball, yet, between high-speed and two targets of highi degree of accuracy, be to influence each other, if want, reach high-speed, must make the screw rod of this ball guide screw, between nut and ball, produce larger frictional heat, and this frictional heat can cause this screw expansion and be out of shape, positioning precision is changed, do not reach preposition, and cannot reach high-precision target.
Therefore, if think, reach high-speed and two targets of highi degree of accuracy simultaneously, can in the structure of nut, install cooling jacket additional, and the heat energy that the water in this cooling jacket produces the ball guide screw of high speed rotating is taken away from the structure of nut, but this mode must have more processing and cannot be directly cooling to heating source, cause the increase of cost, and ball guide screw high speed rotating easily makes the water in this cooling jacket overflow, in addition, this nut structure installs additional after this cooling jacket, can increase integral installation space, cause the not convenient property in use.
Yet, how to overcome the variety of problems of prior art, be an important topic in fact.
Summary of the invention
For solving the variety of problems of above-mentioned prior art, main purpose of the present invention is to disclose a kind of ball guide screw, and the heat energy producing when can directly this ball guide screw be rotated is taken away, and then promotes the precision of this ball guide screw.
For reaching above-mentioned purpose, the present invention discloses a kind of ball guide screw, and it comprises: screw rod, has the first screw thread on its outer ring surface; Nut, ring surface has the second screw thread that should the first screw thread in it, and this nut is placed in the ball in this first screw thread and the second screw thread and is sheathed on the outer ring surface of this screw rod by a plurality of; And at least one fluid passage, it is formed in this nut, and this fluid passage has at least one inflow end and at least one outflow end, and this outflow end is positioned at non-this the second screw thread place of the ring surface of this nut, and this inflow end is positioned at side or the end face of this nut.
According to the above, ball guide screw of the present invention is sent to this fluid passage by this fluid supply apparatus by fluid, and utilizes a fluid regulator so that preferably hydrodynamic pressure to be provided, and this fluid finally flows to this screw rod, with cooling this screw rod, and then the positioning precision of lifting ball guide screw; And the present invention does not have the limited problem of cooling effect of prior art, and does not have the problem that cooling water overflows; In addition, the outflow end of fluid passage of the present invention is positioned at non-this the second screw thread place of the ring surface of this nut, ascend the throne ball without place (being screw thread peak), so the destruction that may cause this second screw thread in the time of can avoiding runner processing.
Accompanying drawing explanation
Figure 1A is the first embodiment's of ball guide screw of the present invention schematic perspective view;
Figure 1B is the generalized section along the hatching A-A of Figure 1A;
Fig. 2 A is the second embodiment's of ball guide screw of the present invention schematic perspective view;
Fig. 2 B is the generalized section along the hatching B-B of Fig. 2 A; And
Fig. 3 is the graph of a relation of the numerical simulation of mist of oil pressure and extruder temperature.
Primary clustering symbol description
10 screw rods
The outer ring surface of 10a
102 first screw threads
104 balls
12 nuts
Ring surface in 12a
122 second screw threads
124a flows into end
124b outflow end
124 fluid passages
1241 radial flow path
1242 shaft orientation flowing channels
14 fluid supply apparatus
16 connecting tube
18 fluid regulators
A-A, B-B hatching.
Embodiment
By particular specific embodiment explanation embodiments of the present invention, the personage who is familiar with this skill can understand other advantage of the present invention and effect easily by content disclosed in the present specification below.
Notice, the structure that the appended accompanying drawing of this specification illustrates, ratio, size etc., equal contents in order to coordinate specification to disclose only, for understanding and the reading of being familiar with the personage of this skill, not in order to limit the enforceable qualifications of the present invention, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, not affecting under the effect that the present invention can produce and the object that can reach, all should still drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, in this specification, quote as " on ", the term such as " " and " two ", also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under without essence change technology contents, when being also considered as the enforceable category of the present invention.
The first embodiment
As shown in Figure 1A, its first embodiment's who is ball guide screw of the present invention schematic perspective view, ball guide screw of the present invention comprises: screw rod 10, nut 12, fluid supply apparatus 14, connecting tube 16 and fluid regulator 18.
Figure 1B is the generalized section along the hatching A-A of Figure 1A, on the outer ring surface 10a of this screw rod 10, there is the first screw thread 102, and the second screw thread 122 of the interior ring surface 12a of these first screw thread, 102 these nuts 12 of meeting corresponding matching, in addition, this nut 12 is placed in the ball 104 of 122, this first screw thread 102 and the second screw thread and is sheathed on the outer ring surface 10a of this screw rod 10 by a plurality of.
In ball guide screw of the present invention, in this nut 12, be formed with at least one fluid passage 124, and this fluid passage 124 has at least one inflow end 124a and at least one outflow end 124b, this outflow end 124b is positioned at non-these the second screw thread 122 places of the ring surface 12a of this nut 12 again, this inflow end 124a is positioned at the side of this nut 12, in the present embodiment, this fluid passage 124 is comprised of radial flow path 1241 and shaft orientation flowing channel 1242, this fluid passage 124 has an inflow end 124a and three outflow end 124b, and this inflow end 124a is positioned at the side of this nut 12.
Described fluid supply apparatus 14 connects the inflow end 124a of this fluid passage 124, and this fluid supply apparatus 14 can be liquid air mixer or fog-like body supply, for instance, this fluid supply apparatus 14 is oil-gas mixer, in this fluid supply apparatus 14, lubricant oil and mixing of gas are produced to the lubricant mist that thermal transmission coefficient is larger afterwards, this mist of oil flows out and contacts this screw rod 10 via this fluid passage 124 and from this outflow end 124b respectively, so that the heat energy of this screw rod 10 is taken away, reduce the temperature of this screw rod 10, and provide lubrication effect, in addition, between the inflow end 124a of this fluid supply apparatus 14 and this nut 12, can be connected by this connecting tube 16, and can between the inflow end 124a of this fluid supply apparatus 14 and this nut 12, fluid regulator 18 be set, and by this fluid regulator 18, control the hydrodynamic pressure of these mist of oils.
The second embodiment
As shown in Figure 2 A, it is the second embodiment's of ball guide screw of the present invention schematic perspective view, also refer to Fig. 2 B, it is the generalized section along the hatching B-B of Fig. 2 A, the present embodiment and the first embodiment's difference is mainly: only there is radial form this fluid passage 124, this inflow end 124a is positioned at the end face of this nut 12, this fluid passage 124, fluid regulator 18 is a plurality of with the quantity of connecting tube 16, for example the present embodiment had three these connecting tube 16, three these fluid passages 124 and three these fluid regulators 18, and respectively these fluid regulator 18 correspondences were located at respectively on this connecting tube 16, and respectively this connecting tube 16 is connected with this fluid passage 124 respectively, these fluid regulator 18 correspondences this fluid passage 124 respectively respectively, the plurality of fluid passage 124 is not communicated with each other again, therefore, respectively this fluid regulator 18 can be adjusted separately the hydrodynamic pressure in corresponding this fluid passage 124.
As shown in Figure 3, it is the graph of a relation of the numerical simulation of mist of oil pressure and extruder temperature, and when the pressure of mist of oil is 1 barometric pressure, the maximum temperature of screw rod is 44.67 ℃; When the pressure of mist of oil is 2 barometric pressure, the maximum temperature of screw rod is 23.61 ℃; When the pressure of mist of oil is 3 barometric pressure, the maximum temperature of screw rod is 22.76 ℃, by the effect that really can reach cooling that provides of the known mist of oil of above-mentioned simulation result.
In addition, after testing, also confirm, when room temperature is 20 ℃, and while carrying out fast feed (30 ms/min), the positioning precision of ball guide screw of the present invention can reach 3 microns/3 meters, and the positioning precision of general ball guide screw only can reach 880 microns/3 meters.
In sum, ball guide screw of the present invention is sent to this fluid passage by this fluid supply apparatus by fluid, and utilizes fluid regulator so that preferably hydrodynamic pressure to be provided, and this fluid finally flows to this screw rod, with cooling this screw rod, and then the positioning precision of lifting ball guide screw; And the present invention does not have the limited problem of cooling effect of prior art, and does not have the problem that cooling water overflows; In addition, the outflow end of fluid passage of the present invention is positioned at non-this the second screw thread place of the ring surface of this nut, ascend the throne ball without place (being screw thread peak), so the destruction that may cause this second screw thread in the time of can avoiding runner processing.
Above-mentioned those embodiments are illustrative effect of the present invention only, but not for limiting the present invention, any person skilled in the art all can, under spirit of the present invention and category, modify and change above-mentioned those embodiments.In addition, the quantity of the assembly in above-mentioned those embodiments is only illustrative, also non-for limiting the present invention.So the scope of the present invention, should be as listed in claims.
Claims (11)
1. a ball guide screw, it comprises:
Screw rod, has the first screw thread on its outer ring surface;
Nut, ring surface has the second screw thread that should the first screw thread in it, and this nut is placed in the ball in this first screw thread and the second screw thread and is sheathed on the outer ring surface of this screw rod by a plurality of; And
At least one fluid passage, it is formed in this nut, and this fluid passage has at least one inflow end and at least one outflow end, and this outflow end is positioned at non-this the second screw thread place of the ring surface of this nut, and this inflow end is positioned at side or the end face of this nut.
2. ball guide screw according to claim 1, is characterized in that, this ball guide screw also comprises fluid supply apparatus, and it connects the inflow end of this fluid passage.
3. ball guide screw according to claim 2, is characterized in that, this fluid supply apparatus is liquid air mixer.
4. ball guide screw according to claim 2, is characterized in that, this fluid supply apparatus is fog-like body supply.
5. ball guide screw according to claim 2, is characterized in that, this ball guide screw also comprises fluid regulator, and it is arranged between this fluid supply apparatus and this inflow end.
6. ball guide screw according to claim 5, is characterized in that, the quantity of this fluid passage and this fluid regulator is a plurality of, this fluid regulator correspondence this fluid passage respectively respectively, and the plurality of fluid passage is not communicated with each other.
7. ball guide screw according to claim 3, is characterized in that, this liquid air mixer is oil-gas mixer.
8. ball guide screw according to claim 7, is characterized in that, this oil-gas mixer is in order to mix lubricant oil with gas.
9. ball guide screw according to claim 1, is characterized in that, this fluid passage is comprised of radial flow path and shaft orientation flowing channel.
10. ball guide screw according to claim 1, is characterized in that, this fluid passage is radial flow path.
11. ball guide screws according to claim 6, it is characterized in that, this ball guide screw also comprises a plurality of connecting tube, respectively between the inflow end of this fluid supply apparatus and this nut respectively by being respectively connected this connecting tube, and respectively this fluid regulator correspondence was located at respectively on this connecting tube.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101132950 | 2012-09-10 | ||
| TW101132950A TWI525273B (en) | 2012-09-10 | 2012-09-10 | Ball screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103671789A true CN103671789A (en) | 2014-03-26 |
Family
ID=50310240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210404154.8A Pending CN103671789A (en) | 2012-09-10 | 2012-10-22 | Ball leading screw |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103671789A (en) |
| TW (1) | TWI525273B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242716A (en) * | 2019-05-06 | 2019-09-17 | 浙江初光传动科技有限公司 | Lead screw gear |
| CN112797129A (en) * | 2019-11-14 | 2021-05-14 | 山东大学 | Static pressure lubrication cooling type ball screw pair and method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI668541B (en) | 2017-09-29 | 2019-08-11 | 財團法人工業技術研究院 | System and method for calibrating tool center point of robot |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3183732A (en) * | 1962-12-11 | 1965-05-18 | Gordon H Porath | Precision lead screw |
| US3448632A (en) * | 1967-11-15 | 1969-06-10 | Scully Intern Corp | Self-adjusting hydrostatic lead screw and nut assembly |
| US3595100A (en) * | 1968-07-12 | 1971-07-27 | Waldrich Werkzeugmasch | Hydrostatic lubricating device for the zones between the interengaging elements of a worm and an internally threaded member |
| US4741220A (en) * | 1984-09-12 | 1988-05-03 | Toshiba Kikai Kabushiki Kaisha | Hydrostatic pressure worm-rack devices |
| JP2002122204A (en) * | 2000-10-16 | 2002-04-26 | Makino Milling Mach Co Ltd | Feed mechanism of machine |
| JP2003222221A (en) * | 2002-01-30 | 2003-08-08 | Sumitomo Heavy Ind Ltd | Direct acting device for molding machine and assembly and maintenance method therefor |
| US20060207361A1 (en) * | 2005-03-15 | 2006-09-21 | Ntn Corporation | Ball screw |
| CN2823693Y (en) * | 2005-07-29 | 2006-10-04 | 上海澳瑞特润滑设备有限公司 | Injection lubricting device |
| CN200952629Y (en) * | 2006-08-18 | 2007-09-26 | 北京京诚之星科技开发有限公司 | Multiroll mill back support roller back liner bearing lubricating device |
| CN101418902A (en) * | 2008-12-08 | 2009-04-29 | 浙江胜祥机械有限公司 | Oil and gas distributor |
| TW200936906A (en) * | 2007-10-10 | 2009-09-01 | Ntn Toyo Bearing Co Ltd | Lubricating system in rolling bearing assembly |
| CN201507774U (en) * | 2009-07-31 | 2010-06-16 | 马鞍山市辰升科技有限公司 | Oil gas distributor |
| JP2011247404A (en) * | 2010-04-26 | 2011-12-08 | Nsk Ltd | Ball screw |
-
2012
- 2012-09-10 TW TW101132950A patent/TWI525273B/en active
- 2012-10-22 CN CN201210404154.8A patent/CN103671789A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3183732A (en) * | 1962-12-11 | 1965-05-18 | Gordon H Porath | Precision lead screw |
| US3448632A (en) * | 1967-11-15 | 1969-06-10 | Scully Intern Corp | Self-adjusting hydrostatic lead screw and nut assembly |
| US3595100A (en) * | 1968-07-12 | 1971-07-27 | Waldrich Werkzeugmasch | Hydrostatic lubricating device for the zones between the interengaging elements of a worm and an internally threaded member |
| US4741220A (en) * | 1984-09-12 | 1988-05-03 | Toshiba Kikai Kabushiki Kaisha | Hydrostatic pressure worm-rack devices |
| JP2002122204A (en) * | 2000-10-16 | 2002-04-26 | Makino Milling Mach Co Ltd | Feed mechanism of machine |
| JP2003222221A (en) * | 2002-01-30 | 2003-08-08 | Sumitomo Heavy Ind Ltd | Direct acting device for molding machine and assembly and maintenance method therefor |
| US20060207361A1 (en) * | 2005-03-15 | 2006-09-21 | Ntn Corporation | Ball screw |
| CN2823693Y (en) * | 2005-07-29 | 2006-10-04 | 上海澳瑞特润滑设备有限公司 | Injection lubricting device |
| CN200952629Y (en) * | 2006-08-18 | 2007-09-26 | 北京京诚之星科技开发有限公司 | Multiroll mill back support roller back liner bearing lubricating device |
| TW200936906A (en) * | 2007-10-10 | 2009-09-01 | Ntn Toyo Bearing Co Ltd | Lubricating system in rolling bearing assembly |
| CN101418902A (en) * | 2008-12-08 | 2009-04-29 | 浙江胜祥机械有限公司 | Oil and gas distributor |
| CN201507774U (en) * | 2009-07-31 | 2010-06-16 | 马鞍山市辰升科技有限公司 | Oil gas distributor |
| JP2011247404A (en) * | 2010-04-26 | 2011-12-08 | Nsk Ltd | Ball screw |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242716A (en) * | 2019-05-06 | 2019-09-17 | 浙江初光传动科技有限公司 | Lead screw gear |
| CN110242716B (en) * | 2019-05-06 | 2022-05-03 | 浙江非攻机械有限公司 | Screw drive |
| CN112797129A (en) * | 2019-11-14 | 2021-05-14 | 山东大学 | Static pressure lubrication cooling type ball screw pair and method |
| CN112797129B (en) * | 2019-11-14 | 2022-07-05 | 山东大学 | Static pressure lubrication cooling type ball screw pair and method |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI525273B (en) | 2016-03-11 |
| TW201411011A (en) | 2014-03-16 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20140326 |