TWI567315B - A ball screw that uses a thermoelectric cooler for heat dissipation - Google Patents
A ball screw that uses a thermoelectric cooler for heat dissipation Download PDFInfo
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- TWI567315B TWI567315B TW102126333A TW102126333A TWI567315B TW I567315 B TWI567315 B TW I567315B TW 102126333 A TW102126333 A TW 102126333A TW 102126333 A TW102126333 A TW 102126333A TW I567315 B TWI567315 B TW I567315B
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Description
本發明係與滾珠螺桿之散熱技術有關，特別是指一種使用熱電致冷器來進行散熱之滾珠螺桿。 The invention relates to the heat dissipation technology of a ball screw, in particular to a ball screw which uses a thermoelectric cooler for heat dissipation.
滾珠螺桿內的滾珠，其在螺桿內的移動對熱溫昇非常敏感，往往局部溫昇到了20℃以上，螺桿一公尺的行程可能就有誤差達到100μm，若移動的速度愈快，其產生的噪音及熱能也愈大，此會使得工作環境與定位精度受到更嚴厲的考驗。因此，滾珠螺桿在運作中所產生的熱能，有必要對其進行散熱的處理。 The ball in the ball screw, its movement in the screw is very sensitive to the temperature rise, often the local temperature rises above 20 °C, the stroke of the screw one meter may have an error of 100μm, if the speed of movement is faster, it produces The greater the noise and thermal energy, the more severe the test environment and positioning accuracy. Therefore, it is necessary to heat-dissipate the heat generated by the ball screw during operation.
中華民國第200637986號「冷卻裝置之螺帽」發明專利案，美國公告號為20020152822號，其係將冷卻流道應用於滾珠螺桿中，利用在螺帽外圍建立冷卻流道，將運作時所產生的熱量以液體循環的方式帶走，以達到冷卻及精密定位的目的。 The Republic of China No. 200637986 "The Nut of the Cooling Device" invention patent case, the US Bulletin No. 20020152822, which applies the cooling flow channel to the ball screw, and uses the cooling flow channel around the nut to generate the operation. The heat is taken away by liquid circulation for cooling and precision positioning.
中華民國第200827087號「滾珠螺桿冷卻裝置」發明專利案，其係於螺桿中心設置一貫穿軸向流道，其流道內裝有一螺旋片，使冷卻液受到螺旋片所產生的螺旋狀的擾動前進，藉以提升冷卻效果進而提升滾珠螺桿的壽命與精度。 The invention patent of the "Ball Screw Cooling Device" of the Republic of China No. 200827087, which is provided with a through-axial flow passage at the center of the screw, and a spiral piece is arranged in the flow passage to cause the coolant to be subjected to a spiral disturbance caused by the spiral piece. Advance, in order to improve the cooling effect and thus improve the life and accuracy of the ball screw.
中華民國第M323540號「滾珠螺桿潤滑冷卻裝置」新型專利案，其冷卻裝置是屬於油霧供應系統，其利用文氏管原理將潤滑油霧化成油氣狀態，並使用此油氣以持續補充滾珠螺桿與螺帽及滾珠之間的潤滑與冷卻，進而提升滾珠螺桿之壽命與精度。 The new patent of the Republic of China No. M323540 "Rolling screw lubrication cooling device", the cooling device is an oil mist supply system, which uses the venturi principle to atomize the lubricating oil into an oil and gas state, and uses the oil and gas to continuously replenish the ball screw and Lubrication and cooling between the nut and the ball, which improves the life and accuracy of the ball screw.
前述之技術，均使用到了冷卻液或油，此會使得整體結構上較為複雜，加工及組裝均為不易，且還會增加滾珠螺桿的體積及重量。因此，前述之技術具有改善的空間。 In the foregoing techniques, the coolant or the oil is used, which makes the overall structure more complicated, processing and assembly are not easy, and the volume and weight of the ball screw are increased. Therefore, the aforementioned technology has an improved space.
本發明之主要目的在於提供一種使用熱電致冷器來進行散熱之滾珠螺桿，其可以提供冷卻功能，且不會把結構複雜化。 SUMMARY OF THE INVENTION A primary object of the present invention is to provide a ball screw that uses a thermoelectric cooler for dissipating heat, which can provide a cooling function without complicating the structure.
本發明之再一目的在於提供一種使用熱電致冷器來進行散熱之滾珠螺桿，其可以幾乎不增加滾珠螺桿的重量，甚至於可以減少重量。 It is still another object of the present invention to provide a ball screw which uses a thermoelectric cooler for heat dissipation, which can hardly increase the weight of the ball screw and can even reduce the weight.
依據前述目的，本發明所提供之一種使用熱電致冷器來進行散熱之滾珠螺桿，包含有：一螺桿以及一螺帽，該螺桿與該螺帽之間係具有複數滾珠；該螺帽具有一安裝面；以及一熱電致冷器，具有一吸熱面以及一散熱面，而以該吸熱面貼設於該螺帽之安裝面。藉此，本發明具有提供冷卻功能，且結構簡單，幾乎不會增加滾珠螺桿的重量等功效。 According to the foregoing objective, a ball screw for heat dissipation using a thermoelectric cooler includes: a screw and a nut, the screw and the nut having a plurality of balls; the nut having a The mounting surface; and a thermoelectric cooler having a heat absorbing surface and a heat dissipating surface, and the heat absorbing surface is attached to the mounting surface of the nut. Thereby, the present invention has the function of providing a cooling function, and has a simple structure, and hardly increases the weight of the ball screw and the like.
10‧‧‧使用熱電致冷器來進行散熱之滾珠螺桿 10‧‧‧Rolling screw using thermoelectric cooler for heat dissipation
11‧‧‧螺桿 11‧‧‧ screw
15‧‧‧螺帽 15‧‧‧ nuts
151‧‧‧安裝面 151‧‧‧Installation surface
17‧‧‧熱電致冷器 17‧‧‧Thermoelectric cooler
171‧‧‧吸熱面 171‧‧‧Heat absorption surface
172‧‧‧散熱面 172‧‧‧heating surface
19‧‧‧滾珠 19‧‧‧ balls
20‧‧‧使用熱電致冷器來進行散熱之滾珠螺桿 20‧‧‧Rolling screw using thermoelectric cooler for heat dissipation
25‧‧‧螺帽 25‧‧‧ Nuts
251‧‧‧安裝面 251‧‧‧Installation surface
27‧‧‧熱電致冷器 27‧‧‧Thermoelectric cooler
271‧‧‧吸熱面 271‧‧‧Heat absorption surface
272‧‧‧散熱面 272‧‧‧heating surface
273‧‧‧散熱鰭片 273‧‧‧Heat fins
21’‧‧‧螺桿 21’‧‧‧ screw
25’‧‧‧螺帽 25’‧‧‧ Nuts
27’‧‧‧熱電致冷器 27'‧‧‧Thermoelectric cooler
272’‧‧‧散熱面 272’‧‧‧heating surface
273’‧‧‧散熱鰭片 273’‧‧‧Friction fins
25”‧‧‧螺帽 25"‧‧‧ Nuts
251”‧‧‧安裝面 251"‧‧‧ mounting surface
27”‧‧‧熱電致冷器 27”‧‧‧Thermoelectric cooler
30‧‧‧使用熱電致冷器來進行散熱之滾珠螺桿 30‧‧‧Rolling screw using thermoelectric cooler for heat dissipation
31‧‧‧螺桿 31‧‧‧ screw
311‧‧‧穿槽 311‧‧‧through slot
311‧‧‧穿槽 311‧‧‧through slot
37‧‧‧熱電致冷器 37‧‧‧Thermoelectric cooler
371‧‧‧吸熱面 371‧‧‧Heat absorption surface
372‧‧‧散熱面 372‧‧‧heating surface
39‧‧‧氣體驅動裝置 39‧‧‧Gas drive
第1圖係本發明第一較佳實施例之***圖。 Figure 1 is an exploded view of a first preferred embodiment of the present invention.
第2圖係本發明第一較佳實施例之剖視示意圖。 Figure 2 is a schematic cross-sectional view showing a first preferred embodiment of the present invention.
第3圖係本發明第一較佳實施例之組合立體圖。 Figure 3 is a combined perspective view of a first preferred embodiment of the present invention.
第4圖係本發明第二較佳實施例之***圖。 Figure 4 is an exploded view of a second preferred embodiment of the present invention.
第5圖係本發明第二較佳實施例之組合立體圖。 Figure 5 is a combined perspective view of a second preferred embodiment of the present invention.
第6圖係本發明第二較佳實施例之另一種實施態樣之***圖。 Figure 6 is an exploded view of another embodiment of the second preferred embodiment of the present invention.
第7圖係本發明第二較佳實施例之又一種實施態樣之***圖。 Figure 7 is an exploded view of still another embodiment of the second preferred embodiment of the present invention.
第8圖係本發明第三較佳實施例之局部元件***圖。 Figure 8 is a partial exploded view of a third preferred embodiment of the present invention.
第9圖係本發明第三較佳實施例之局部剖視示意圖。 Figure 9 is a partial cross-sectional view showing a third preferred embodiment of the present invention.
如第1至3所示，根據本發明第一較佳實施例所提供之一種使用熱電致冷器來進行散熱之滾珠螺桿10，主要由一螺桿11以及一螺帽15所組成，其中：該螺桿11與該螺帽15之間係具有複數滾珠19。 As shown in the first to third embodiments, a ball screw 10 for dissipating heat using a thermoelectric cooler according to a first preferred embodiment of the present invention is mainly composed of a screw 11 and a nut 15, wherein: A plurality of balls 19 are provided between the screw 11 and the nut 15.
本實施例之技術特點在於： 該螺帽15具有一安裝面151。 The technical features of this embodiment are as follows: The nut 15 has a mounting surface 151.
此外，本實施例更包含有：一熱電致冷器17，具有一吸熱面171以及一散熱面172，而以該吸熱面171貼設於該螺帽15之安裝面151。 In addition, the present embodiment further includes a thermoelectric cooler 17 having a heat absorbing surface 171 and a heat dissipating surface 172, and the heat absorbing surface 171 is attached to the mounting surface 151 of the nut 15.
於本實施例中，該安裝面151呈水平狀，而該熱電致冷器17之吸熱面171及散熱面172均呈水平狀。 In this embodiment, the mounting surface 151 is horizontal, and the heat absorbing surface 171 and the heat dissipating surface 172 of the thermoelectric cooler 17 are horizontal.
而關於該熱電致冷器17，所屬技術領域中具有通常知識者均知，其只要加上電源(圖中未示)，即可令該吸熱面171吸取熱能，並傳送熱能至該散熱面172來進行散熱。而設置電源的技術乃屬習知技術且非本案之申請重點，因此於本實施例中不予贅述。 With regard to the thermoelectric cooler 17, it is known to those skilled in the art that as long as a power source (not shown) is applied, the heat absorbing surface 171 can absorb heat energy and transfer heat energy to the heat sink surface 172. To dissipate heat. The technology for setting the power supply is a well-known technology and is not an application focus of the present application, and therefore will not be described in detail in this embodiment.
以上說明了本第一實施例的結構，接下來說明本第一實施例的操作方式。 The structure of the first embodiment has been described above, and the mode of operation of the first embodiment will be described next.
在該滾珠螺桿10運轉的過程中，所產生的熱能會傳導至該螺帽15，藉由對該熱電致冷器17施加電能，可使得該螺帽15的熱能傳遞至該熱電致冷器17之散熱面172，藉以進行散熱。藉此，可達到提供冷卻的功能。 During the operation of the ball screw 10, the generated thermal energy is transmitted to the nut 15, and by applying electrical energy to the thermoelectric cooler 17, the thermal energy of the nut 15 can be transferred to the thermoelectric cooler 17. The heat dissipation surface 172 is used for heat dissipation. Thereby, the function of providing cooling can be achieved.
再者，由於在結構上，僅是在該螺帽15的安裝面151上貼設該熱電致冷器17而已，因此相較於使用冷卻液的習知技術而言，本案之結構更為簡單，進而具有不會把結構複雜化的效果。 Furthermore, since the thermoelectric cooler 17 is attached only to the mounting surface 151 of the nut 15 in terms of structure, the structure of the present invention is simpler than the conventional technique using a coolant. Further, there is an effect that the structure is not complicated.
又，由於熱電致冷器17本身之重量很輕，且是安裝在該安裝面151上，因此可以達到幾乎不增加整體重量的效果。 Further, since the thermoelectric cooler 17 itself is light in weight and mounted on the mounting surface 151, it is possible to achieve an effect of hardly increasing the overall weight.
請再參閱第4至5圖，本發明第二較佳實施例所提供之一種使用熱電致冷器來進行散熱之滾珠螺桿20，主要概同於前揭第一實施例，不同之處在於：該安裝面251係呈圓柱面狀，該熱電致冷器27之吸熱面271係對應於該安裝面251而呈彎弧狀。藉此，可在形狀上與螺帽25搭配，進而美化外觀。 Referring to Figures 4 to 5, a ball screw 20 for heat dissipation using a thermoelectric cooler according to a second preferred embodiment of the present invention is mainly similar to the first embodiment disclosed above, except that: The mounting surface 251 has a cylindrical shape, and the heat absorbing surface 271 of the thermoelectric cooler 27 is curved in shape corresponding to the mounting surface 251. Thereby, it can be matched with the nut 25 in shape, thereby beautifying the appearance.
於本實施例中，該熱電致冷器27的散熱面272係呈圓柱面狀。且該安裝面251係由該螺帽25之表面向下凹設而成，且凹設之深度係使該熱電致冷器27之散熱面272不凸出於該螺帽25之表面。藉此可以不 增加該螺帽25的體積。而由於熱電致冷器27的重量較該螺帽25凹設之切除部位更輕，因此，整體重量即更輕。 In the present embodiment, the heat dissipating surface 272 of the thermoelectric cooler 27 has a cylindrical surface shape. The mounting surface 251 is recessed downwardly from the surface of the nut 25, and the depth of the recess is such that the heat dissipating surface 272 of the thermoelectric cooler 27 does not protrude from the surface of the nut 25. Can not take this The volume of the nut 25 is increased. Since the weight of the thermoelectric cooler 27 is lighter than the recessed portion of the nut 25 recessed, the overall weight is lighter.
此外，如第6圖所示，該熱電致冷器27’之散熱面272’可再增設多數散熱鰭片273’，而該等散熱鰭片273’係在該散熱面272’上，沿該螺帽25’於該螺桿21’上的運動方向上延伸而呈長形片體。藉由增設散熱鰭片273’，可使得散熱面積加大而具有更好的散熱效果。 In addition, as shown in FIG. 6, the heat dissipating surface 272' of the thermoelectric cooler 27' can be further provided with a plurality of heat dissipating fins 273', and the heat dissipating fins 273' are attached to the heat dissipating surface 272' along the The nut 25' extends in the direction of movement of the screw 21' to form an elongated sheet. By adding the heat dissipation fins 273', the heat dissipation area can be increased to have a better heat dissipation effect.
又，該安裝面251”亦可環繞該螺帽25”，如第7圖所示，而該熱電致冷器27”係貼接於該安裝面251”而環繞該螺帽25”。藉此，可以加大吸熱及散熱面積，使得散熱效果更好。 Moreover, the mounting surface 251" can also surround the nut 25", as shown in FIG. 7, and the thermoelectric cooler 27" is attached to the mounting surface 251" to surround the nut 25". It can increase the heat absorption and heat dissipation area, so that the heat dissipation effect is better.
本第二實施例之其餘結構及所能達成之功效均概同於前揭第一實施例，容不再予贅述。 The remaining structure of the second embodiment and the achievable effects are the same as those of the first embodiment, and will not be further described.
請再參閱第8圖，本發明第三較佳實施例所提供之一種使用熱電致冷器來進行散熱之滾珠螺桿30，主要概同於前揭第一實施例，不同之處在於：該螺帽(圖中未示)不具有安裝面，而是該螺桿31具有沿軸向貫穿的一穿槽311。 Referring to FIG. 8 again, a ball screw 30 for using a thermoelectric cooler for dissipating heat according to a third preferred embodiment of the present invention is mainly similar to the first embodiment disclosed above, except that the snail is The cap (not shown) does not have a mounting surface, but the screw 31 has a through slot 311 extending in the axial direction.
該熱電致冷器37，呈管狀，其管外壁為吸熱面371，而管內壁為散熱面372，而以該吸熱面371貼設於該螺桿31之穿槽311槽壁面。藉此，該熱電致冷器37係將該螺桿31的熱能向該熱電致冷器37的管體內導出散熱。 The thermoelectric cooler 37 has a tubular shape, and the outer wall of the tube is a heat absorbing surface 371, and the inner wall of the tube is a heat dissipating surface 372, and the heat absorbing surface 371 is attached to the groove wall surface of the through hole 311 of the screw 31. Thereby, the thermoelectric cooler 37 heats the heat of the screw 31 to the inside of the tube of the thermoelectric cooler 37.
再如第9圖所示，可更以一氣體驅動裝置39來驅動空氣。該氣體驅動裝置39係設於該螺桿31且位於該穿槽311的一端，係對該熱電致冷器37之管內空氣進行驅動，例如，以抽氣的方式(亦可為吹氣)進行驅動，藉此，可將該熱電致冷器37的管內空氣帶出該螺桿31，藉此將熱能帶出，達到更好的散熱效果。 As shown in Fig. 9, the gas can be driven by a gas driving device 39. The gas driving device 39 is disposed on the screw 31 and located at one end of the through slot 311 to drive the air in the tube of the thermoelectric cooler 37, for example, by pumping (or blowing) Driven, the air inside the tube of the thermoelectric cooler 37 can be taken out of the screw 31, thereby taking out thermal energy for better heat dissipation.
藉此，在該滾珠螺桿30運轉的過程中，所產生的熱能會傳導至該螺桿31，藉由對該熱電致冷器37施加電能來達到散熱的效果。藉此，可達到提供冷卻的功能。 Thereby, during the operation of the ball screw 30, the generated thermal energy is transmitted to the screw 31, and the heat is applied to the thermoelectric cooler 37 to achieve the heat dissipation effect. Thereby, the function of providing cooling can be achieved.
本第三實施例之其餘結構及所能達成的功效均概同於前揭 第一實施例，容不贅述。 The rest of the structure and the achievable effects of the third embodiment are similar to those disclosed above. The first embodiment will not be described again.
10‧‧‧使用熱電致冷器來進行散熱之滾珠螺桿 10‧‧‧Rolling screw using thermoelectric cooler for heat dissipation
11‧‧‧螺桿 11‧‧‧ screw
15‧‧‧螺帽 15‧‧‧ nuts
151‧‧‧安裝面 151‧‧‧Installation surface
17‧‧‧熱電致冷器 17‧‧‧Thermoelectric cooler
171‧‧‧吸熱面 171‧‧‧Heat absorption surface
172‧‧‧散熱面 172‧‧‧heating surface
19‧‧‧滾珠 19‧‧‧ balls
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102126333A TWI567315B (en) | 2013-07-23 | 2013-07-23 | A ball screw that uses a thermoelectric cooler for heat dissipation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102126333A TWI567315B (en) | 2013-07-23 | 2013-07-23 | A ball screw that uses a thermoelectric cooler for heat dissipation |
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| Publication Number | Publication Date |
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| TW201504542A TW201504542A (en) | 2015-02-01 |
| TWI567315B true TWI567315B (en) | 2017-01-21 |
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|---|---|---|---|---|
| JPH09126287A (en) * | 1995-10-27 | 1997-05-13 | Mitsubishi Heavy Ind Ltd | Planetary traction drive device with cooling device |
| JP2008223843A (en) * | 2007-03-12 | 2008-09-25 | Nsk Ltd | Rotatably supporting device with generating set |
| TWM405928U (en) * | 2011-01-18 | 2011-06-21 | Yeong Chin Machinery Ind Co Ltd | Heat removal structure for driver of machine tool |
| TWM452270U (en) * | 2012-12-27 | 2013-05-01 | Univ Nat Formosa | Ball screw device with cooling chip |
| TW201319430A (en) * | 2011-11-09 | 2013-05-16 | Nat Univ Chung Cheng | Ball screw combination assembly using heat pipe to dissipate heat |
-
2013
- 2013-07-23 TW TW102126333A patent/TWI567315B/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09126287A (en) * | 1995-10-27 | 1997-05-13 | Mitsubishi Heavy Ind Ltd | Planetary traction drive device with cooling device |
| JP2008223843A (en) * | 2007-03-12 | 2008-09-25 | Nsk Ltd | Rotatably supporting device with generating set |
| TWM405928U (en) * | 2011-01-18 | 2011-06-21 | Yeong Chin Machinery Ind Co Ltd | Heat removal structure for driver of machine tool |
| TW201319430A (en) * | 2011-11-09 | 2013-05-16 | Nat Univ Chung Cheng | Ball screw combination assembly using heat pipe to dissipate heat |
| TWM452270U (en) * | 2012-12-27 | 2013-05-01 | Univ Nat Formosa | Ball screw device with cooling chip |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201504542A (en) | 2015-02-01 |
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