TWI642861B - Ball screw with a cooling passage - Google Patents
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Abstract
本發明為一種具冷卻流道的滾珠螺桿，包含一螺桿、一螺帽、及一封閉單元，其主要在該螺帽上設有平行軸線的輸入冷卻槽道及輸出冷卻槽道，且在該軸向平面上設有冷卻導引槽，並在該冷卻導引槽與該輸入冷卻槽道及輸出冷卻槽道之間分別設有連通的第一徑向穿孔及第二徑向穿孔，最後利用一封閉單元封閉該冷卻導引槽，藉以形成一冷卻流道；其中該冷卻導引槽、該第一徑向穿孔、及該第二徑向穿孔皆採徑向設計，且僅藉由該封閉單元封閉該冷卻導引槽即可形成該冷卻流道，如此，有效降低組裝的步驟及時間，達到降低組裝成本的目的。The present invention relates to a ball screw having a cooling flow passage, comprising a screw, a nut, and a closing unit, wherein the nut is mainly provided with a parallel axis input cooling channel and an output cooling channel, and a cooling guiding groove is disposed on the axial plane, and a first radial perforation and a second radial perforation are respectively provided between the cooling guiding groove and the input cooling channel and the output cooling channel, and finally utilized a cooling unit enclosing the cooling guiding groove to form a cooling flow channel; wherein the cooling guiding groove, the first radial perforation, and the second radial perforation are radially designed, and only by the sealing The cooling channel is formed by closing the cooling guiding groove, so that the steps and time of assembly are effectively reduced, and the assembly cost is reduced.
Description
本發明係與滾珠螺桿有關，特別是指一種具冷卻流道的滾珠螺桿。The present invention relates to a ball screw, and more particularly to a ball screw having a cooling flow path.
參閱圖1A所示，顯示中華民國申請第090106417號一種「具冷卻通道之滾珠螺桿」的其中一圖式，其主要在螺帽11兩側分別設有內設數個槽溝121的端蓋12，利用兩側端蓋12的數個槽溝121將螺帽11內部所設置的數個冷卻通孔111，連接成為一冷卻介質循環通道，將冷卻介質由一入口供應至冷卻介質循環通道內，藉以冷卻螺帽11至一設定溫度值，吸收熱能後之冷卻介質由一出口排出至外界。然而，由於該專利前案必須在該螺帽11的兩側各設有一個端蓋12，同時藉由該端蓋12的各槽溝121對應該螺帽11的各冷卻通孔111，以形成該冷卻介質循環通道，如此，將造成該螺帽11的軸向長度過長，降低了該螺帽11的有效行程。Referring to FIG. 1A, there is shown a drawing of a "ball screw with a cooling passage" of the Republic of China application No. 090106417, which is mainly provided with an end cover 12 having a plurality of grooves 121 disposed on both sides of the nut 11 The plurality of cooling through holes 111 disposed inside the nut 11 are connected into a cooling medium circulation passage by using the plurality of slots 121 of the side end covers 12, and the cooling medium is supplied from an inlet to the cooling medium circulation passage. By cooling the nut 11 to a set temperature value, the cooling medium after absorbing heat energy is discharged to the outside by an outlet. However, since the patent premise must be provided with an end cover 12 on each side of the nut 11, and the respective cooling holes 111 of the nut 11 are correspondingly formed by the grooves 121 of the end cover 12 to form The cooling medium circulation passage, as such, will cause the axial length of the nut 11 to be too long, reducing the effective stroke of the nut 11.
參閱圖1B所示，顯示中華民國申請第094114025號一種「冷卻裝置之螺帽」的其中一圖式，其主要在螺帽14之外周側直接加工成型有循環凹槽141，且該循環凹槽141係連續彎曲狀，並沿著該螺帽14之軸向成型，而藉由蓋板15對應蓋合於該循環凹槽141，俾使螺帽14之外周側形成一冷卻流道。然而，由於該專利前案是以硬焊加工方式讓各該蓋板15蓋合於該螺帽14的外周側，使該螺帽14的循環凹槽141呈一封閉狀之冷卻流道，因此，凸顯出加工以及維修不便的缺陷，且當該蓋板15焊固在該螺帽14後必須進行外觀的研磨作業，更顯示出費時費工的缺陷。Referring to FIG. 1B, there is shown a diagram of a "screw of a cooling device" of the Republic of China application No. 094114025, which is directly formed with a circulating groove 141 on the outer peripheral side of the nut 14, and the circulating groove The 141 is continuously curved and formed along the axial direction of the nut 14, and the cover 15 is correspondingly closed to the circulation groove 141, so that a cooling flow path is formed on the outer peripheral side of the nut 14. However, since the prior art of the patent is to cover the outer peripheral side of the nut 14 by the brazing process, the circulating groove 141 of the nut 14 is in a closed cooling flow path. The defect of processing and maintenance inconvenience is highlighted, and when the cover plate 15 is welded to the nut 14, the appearance of the grinding operation must be performed, and the defect of time consuming and labor-saving is further exhibited.
參閱圖1C所示，顯示中華民國申請第105211596號一種「具冷卻流道之滾珠螺桿」的其中一圖式，其主要令螺帽17具有兩端面171及一徑向面172，由其中一該端面171係設有複數個朝另一端面171開設之軸向流道173，該軸向流道173係環繞該螺帽17的穿孔174排列，而該徑向面172鄰近兩該端面171之位置，分別設有與該軸向流道173銜接的徑向流道175；該徑向流道175與該軸向流道173係形成一連續S型的冷卻流道。然而，由於該專利前案是在該螺帽17的一端面171朝另一端面171開設有複數個獨立的軸向流道173，且每一個該軸向流道173都必須對應封設有一個錐型螺絲176，且於實際使用情形也必須搭配止瀉帶使用，凸顯出組裝費時費工的缺陷。Referring to FIG. 1C, there is shown a diagram of a "ball screw with a cooling flow path" of the Republic of China application No. 105211596, which mainly has a nut 17 having a contact surface 171 and a radial surface 172, one of which The end surface 171 is provided with a plurality of axial flow passages 173 which are opened toward the other end surface 171. The axial flow passages 173 are arranged around the through holes 174 of the nut 17, and the radial surface 172 is adjacent to the positions of the end surfaces 171. A radial flow passage 175 is formed respectively for engaging the axial flow passage 173; the radial flow passage 175 and the axial flow passage 173 form a continuous S-shaped cooling flow passage. However, in the prior patent, a plurality of independent axial flow passages 173 are opened at one end surface 171 of the nut 17 toward the other end surface 171, and each of the axial flow passages 173 must be correspondingly sealed. The tapered screw 176 must also be used with the diarrhea band in actual use, which highlights the drawbacks of assembly time-consuming and labor-intensive.
本發明的目的在於提供一種具冷卻流道的滾珠螺桿，其主要降低組裝成本。It is an object of the present invention to provide a ball screw having a cooling flow path which mainly reduces assembly costs.
本發明另一目的在於提供一種具冷卻流道的滾珠螺桿，其主要提升冷卻流道的密封性。Another object of the present invention is to provide a ball screw having a cooling flow path which mainly enhances the sealing of the cooling flow path.
緣是，為了達成前述目的，依據本發明所提供一種具冷卻流道的滾珠螺桿，包含：一螺桿，具有一軸線、一環繞該軸線的螺桿環面、以及一繞該軸線螺旋凹設於螺桿環面的外螺旋槽道；一螺帽，沿該軸線方向套設於該螺桿，並包含一繞該軸線螺旋設置於內部的內螺旋槽道，且該內螺旋槽道與該外螺旋槽道形成一容置多數滾珠的負荷路徑、一第一徑向端面、一反向於該第一徑向端面的第二徑向端面、至少一軸向平面、由該第一徑向端面朝該第二徑向端面方向設置的一輸入冷卻槽道及一輸出冷卻槽道、至少一由該軸向平面凹設的冷卻導引槽、一最終連通該冷卻導引槽與該輸入冷卻槽道的第一徑向穿孔、及一最終連通該冷卻導引槽與該輸出冷卻槽道的第二徑向穿孔；一封閉單元，設置在該螺帽的軸向平面，並具有一封閉該至少一冷卻導引槽的封閉平面，使該輸入冷卻槽道、該第一徑向穿孔、該至少一冷卻導引槽、該第二徑向穿孔、及該輸出冷卻槽道形成一冷卻流道。In order to achieve the foregoing object, a ball screw having a cooling flow path according to the present invention includes: a screw having an axis, a screw torus surrounding the axis, and a screw recessed around the screw An outer spiral channel of the torus; a nut sleeved on the screw along the axis direction, and including an inner spiral channel spirally disposed inside the axis, and the inner spiral channel and the outer spiral channel Forming a load path for accommodating a plurality of balls, a first radial end surface, a second radial end surface opposite to the first radial end surface, at least one axial plane, and the first radial end surface An input cooling channel disposed in the direction of the second radial end surface and an output cooling channel, at least one cooling guiding groove recessed by the axial plane, and a final communication between the cooling guiding groove and the input cooling channel a first radial perforation, and a second radial perforation that ultimately communicates the cooling guide groove with the output cooling channel; a closed unit disposed in an axial plane of the nut and having a closure for the at least one cooling The closed plane of the guiding groove, The input cooling channels, the first radial perforations, cooling the at least one guide groove, the second radial perforations, and cooling channels formed in the output of a cooling passages.
藉此，本發明主要在該螺帽上設有平行軸線的輸入冷卻槽道及輸出冷卻槽道，且在該軸向平面上設有冷卻導引槽，並在該冷卻導引槽與該輸入冷卻槽道及輸出冷卻槽道之間分別設有連通的第一徑向穿孔及第二徑向穿孔，最後利用一封閉單元封閉該冷卻導引槽，藉以形成一冷卻流道；其中該冷卻導引槽、該第一徑向穿孔、及該第二徑向穿孔皆採徑向設計，且僅藉由該封閉單元封閉該冷卻導引槽即可形成該冷卻流道，如此，有效降低組裝的步驟及時間，達到降低組裝成本的目的。Accordingly, the present invention mainly provides an input cooling channel and an output cooling channel on a parallel axis of the nut, and a cooling guiding groove is disposed on the axial plane, and the cooling guiding groove and the input are A first radial through hole and a second radial through hole are respectively disposed between the cooling channel and the output cooling channel, and finally the cooling guiding groove is closed by a closed unit to form a cooling flow channel; wherein the cooling guide The guiding groove, the first radial through hole, and the second radial through hole are all designed in a radial direction, and the cooling flow channel is formed only by closing the cooling guiding groove by the closing unit, thereby effectively reducing assembly. Steps and time to achieve the purpose of reducing assembly costs.
較佳地，其中該螺帽的至少一冷卻導引槽數量為三個，且各該冷卻導引槽呈並聯排列。Preferably, the number of the at least one cooling guide groove of the nut is three, and each of the cooling guiding grooves is arranged in parallel.
較佳地，其中該螺帽的至少一冷卻導引槽更具有一環肩部，該封閉單元包括至少一止漏件、一止漏片、及一蓋板，該至少一止漏件具有一封設該至少一冷卻導引槽之槽口的止漏部及一靠抵在該環肩部的靠抵部；該止漏片設在該螺帽，且具有封閉該至少一冷卻導引槽及該至少一止漏件的該封閉平面，該蓋板鎖固在該螺帽的軸向平面且壓抵該止漏片。Preferably, the at least one cooling guide groove of the nut further has a ring shoulder, the closing unit includes at least one stop member, a leak stop piece, and a cover plate, the at least one stop member having a a leakage stop portion of the at least one cooling guide groove and an abutting portion abutting against the annular shoulder portion; the leakage preventing piece is disposed on the nut and has a sealing of the at least one cooling guiding groove The closed plane of the at least one stop member is locked to the axial plane of the nut and pressed against the stop sheet.
另外，同樣為了達成前述目的，本發明另外所提供一種具冷卻流道的滾珠螺桿，包含：一螺桿，具有一軸線、一環繞該軸線的螺桿環面、以及一繞該軸線螺旋凹設於螺桿環面的外螺旋槽道；一螺帽，沿該軸線方向套設於該螺桿，並包含一繞該軸線螺旋設置於內部的內螺旋槽道，且該內螺旋槽道與該外螺旋槽道形成一容置多數滾珠的負荷路徑、一第一徑向端面、一反向於該第一徑向端面的第二徑向端面、一第一軸向平面、一第二軸向平面、由該第一徑向端面朝該第二徑向端面方向設置的一輸入冷卻槽道及一輸出冷卻槽道、至少一由該第一軸向平面凹設的第一冷卻導引槽、至少一由該第二軸向平面凹設的第二冷卻導引槽、一最終連通該第一冷卻導引槽與該輸入冷卻槽道的第一徑向穿孔、一最終連通該第二冷卻導引槽與該輸出冷卻槽道的第二徑向穿孔、及一連通該第一、第二冷卻導引槽的第三徑向穿孔；二封閉單元，分別設置在該螺帽的第一、第二軸向平面，並各具有一封閉該至少一第一、第二冷卻導引槽的封閉平面，使該輸入冷卻槽道、該第一徑向穿孔、該至少一第一冷卻導引槽、該第三徑向穿孔、該至少一第二冷卻導引槽、該第二徑向穿孔、及該輸出冷卻槽道形成一冷卻流道。In addition, in order to achieve the foregoing object, the present invention further provides a ball screw having a cooling flow passage, comprising: a screw having an axis, a screw torus surrounding the axis, and a screw recessed around the screw An outer spiral channel of the torus; a nut sleeved on the screw along the axis direction, and including an inner spiral channel spirally disposed inside the axis, and the inner spiral channel and the outer spiral channel Forming a load path for accommodating a plurality of balls, a first radial end surface, a second radial end surface opposite to the first radial end surface, a first axial plane, and a second axial plane, An input cooling channel disposed in the direction of the second radial end surface and an output cooling channel, at least one first cooling guiding groove recessed by the first axial plane, at least one a second cooling guide groove recessed in the second axial plane, a first radial through hole finally connecting the first cooling guide groove and the input cooling channel, and finally connecting the second cooling guide groove a second radial perforation of the output cooling channel, a third radial through hole communicating with the first and second cooling guiding grooves; two closing units respectively disposed on the first and second axial planes of the nut, and each having a closing of the at least one first a closed plane of the second cooling guide groove, the input cooling channel, the first radial through hole, the at least one first cooling guiding groove, the third radial through hole, and the at least one second cooling guiding groove The second radial perforation and the output cooling channel form a cooling flow channel.
較佳地，其中該螺帽的該至少一第一、第二冷卻導引槽數量皆為三個，且各該第一、第二冷卻導引槽呈並聯排列。Preferably, the number of the at least one first and second cooling guiding grooves of the nut is three, and each of the first and second cooling guiding grooves is arranged in parallel.
較佳地，其中該螺帽的該至少一第一冷卻導引槽更具有一第一環肩部，該至少一第二冷卻導引槽更具有一第二環肩部，各該封閉單元皆包括至少一止漏件、一蓋板、及一止漏片，各該至少一止漏件分別具有一封設該至少一第一、第二冷卻導引槽之槽口的止漏部及一靠抵在該第一、第二環肩部的靠抵部；各該止漏片分別設在各該螺帽，且分別具有封閉該至少一第一、第二冷卻導引槽及各該至少一止漏件的該封閉平面，各該蓋板分別鎖固在該螺帽的第一、第二軸向平面且分別壓抵各該止漏片。Preferably, the at least one first cooling guide groove of the nut further has a first ring shoulder, and the at least one second cooling guide groove further has a second ring shoulder, each of the closed units The device includes at least one stop member, a cover plate, and a stop film, each of the at least one stop member having a stop portion for providing a notch of the at least one first and second cooling guide grooves, and a Abutting against the abutting portions of the first and second ring shoulders; each of the stopping sheets is respectively disposed on each of the nuts, and respectively has a closing of the at least one first and second cooling guiding grooves and each of the at least The closed plane of a leak stop member is respectively locked to the first and second axial planes of the nut and pressed against the respective leak stop sheets.
請參閱圖2至圖6所示，本創作第一實施例所提供一種具冷卻流道的滾珠螺桿，其主要是由一螺桿20、套置在該螺桿的一螺帽30、複數設在該螺桿20與螺帽30之間的滾珠50、及二設在該螺帽30的封閉單元40所組成，其中：Referring to FIG. 2 to FIG. 6 , a first embodiment of the present invention provides a ball screw having a cooling flow path, which is mainly composed of a screw 20 and a nut 30 disposed on the screw. A ball 50 between the screw 20 and the nut 30, and a closed unit 40 disposed on the nut 30, wherein:
該螺桿20，具有一軸線21、一環繞該軸線21的螺桿環面22、以及一繞該軸線21螺旋凹設於螺桿環面22的外螺旋槽道23。The screw 20 has an axis 21, a screw annulus 22 surrounding the axis 21, and an outer spiral channel 23 spirally recessed about the axis 21 of the screw annulus 22.
配合參閱圖6所示，該螺帽30，沿該軸線21方向套設於該螺桿20，並包含一繞該軸線21螺旋設置於內部的內螺旋槽道31，且該內螺旋槽道31與該外螺旋槽道23形成一容置多數滾珠50的負荷路徑、一第一徑向端面32、一反向於該第一徑向端面32的第二徑向端面33、一延著該軸線21方向且設在該第一、第二徑向端面32、33之間的第一軸向平面34、一延著該軸線21方向且設在該第一、第二徑向端面32、33之間的第二軸向平面35、由該第一徑向端面32朝該第二徑向端面33方向設置的一輸入冷卻槽道36及一輸出冷卻槽道37、三個呈並聯排列由該第一軸向平面34凹設的第一冷卻導引槽38、三個呈並聯排列由該第二軸向平面35凹設的第二冷卻導引槽39、一連通該第一冷卻導引槽38與該輸入冷卻槽道36的第一徑向穿孔310、一連通該第二冷卻導引槽39與該輸出冷卻槽道37的第二徑向穿孔311、及一連通該第一、第二冷卻導引槽38、39的第三徑向穿孔312；本實施例中，各該第一冷卻導引槽38更具有一第一環肩部381，各該第二冷卻導引槽39更具有一第二環肩部391。Referring to FIG. 6 , the nut 30 is sleeved on the screw 20 along the axis 21 and includes an inner spiral channel 31 spirally disposed around the axis 21 , and the inner spiral channel 31 and The outer spiral channel 23 defines a load path for accommodating a plurality of balls 50, a first radial end surface 32, a second radial end surface 33 opposite to the first radial end surface 32, and an extension of the axis 21 a first axial plane 34 disposed between the first and second radial end faces 32, 33, extending in the direction of the axis 21 and disposed between the first and second radial end faces 32, 33 a second axial plane 35, an input cooling channel 36 disposed from the first radial end surface 32 toward the second radial end surface 33, and an output cooling channel 37, three arranged in parallel by the first a first cooling guiding groove 38 recessed in the axial plane 34, three second cooling guiding grooves 39 recessed in the second axial plane 35 in parallel, and a first cooling guiding groove 38 communicating with the first cooling guiding groove 38 a first radial through hole 310 of the input cooling channel 36, a second radial through hole 311 communicating with the second cooling guiding groove 39 and the output cooling channel 37, a third radial through hole 312 that communicates with the first and second cooling guide grooves 38, 39. In this embodiment, each of the first cooling guide grooves 38 further has a first annular shoulder portion 381. The second cooling guide groove 39 further has a second ring shoulder 391.
該二封閉單元40皆包括對應該第一、第二冷卻導引槽38、39數量的三呈長條的止漏件41、一呈方型的止漏片42、及一呈弓形的蓋板43。各該止漏件41分別具有一封設該第一、第二冷卻導引槽38、39之槽口的止漏部411及一靠抵在該第一、第二環肩部381、391的靠抵部412；各該止漏片42分別設在各該螺帽30，且分別具有封閉各該第一、第二冷卻導引槽38、39及各該止漏件41的封閉平面421，各該蓋板43分別藉由沉頭螺絲44鎖固在該螺帽30的第一、第二軸向平面34、35且分別壓抵各該止漏片42，藉此，使該輸入冷卻槽道36及輸出冷卻槽道37與每一該第一徑向穿孔310、該第一冷卻導引槽38、該第三徑向穿孔312、該第二冷卻導引槽39、及該第二徑向穿孔311形成一冷卻流道。本實施例中，如圖5所示，為了讓該蓋板43能夠穩固地壓抵該止漏片42，使該止漏片42有效封閉各該第一、第二冷卻導引槽38、39及各該止漏件41，本實施例於該螺帽30的該第一、第二軸向平面34、35分別設有螺孔341、351、各該止漏片42設有對應該螺孔341、351的穿孔422及各該蓋板43設有對應該螺孔341、351的沉頭孔431，以供沉頭螺絲44穿置鎖固。The two closed units 40 each include three elongated strips 41 corresponding to the number of the first and second cooling guide grooves 38, 39, a square-shaped stop-stopping piece 42, and an arcuate cover plate. 43. Each of the stop members 41 has a stop portion 411 for providing the notches of the first and second cooling guide grooves 38, 39 and abutting against the first and second ring shoulder portions 381, 391. Each of the sealing pieces 412 is disposed on each of the nuts 30, and has a closed plane 421 for closing the first and second cooling guiding grooves 38, 39 and each of the stopping members 41, respectively. Each of the cover plates 43 is respectively locked to the first and second axial planes 34 and 35 of the nut 30 by the countersunk screws 44 and pressed against the respective leakage preventing sheets 42 , thereby making the input cooling slots a track 36 and an output cooling channel 37 and each of the first radial through hole 310, the first cooling guide groove 38, the third radial through hole 312, the second cooling guide groove 39, and the second diameter A cooling flow path is formed to the through hole 311. In this embodiment, as shown in FIG. 5, in order to allow the cover plate 43 to be firmly pressed against the leakage preventing piece 42, the leakage preventing piece 42 effectively closes the first and second cooling guiding grooves 38, 39. And the first and second axial planes 34 and 35 of the nut 30 are respectively provided with screw holes 341 and 351, and each of the leakage preventing pieces 42 is provided with a corresponding screw hole. The through holes 422 of the 341, 351 and the cover plates 43 are provided with countersunk holes 431 corresponding to the screw holes 341, 351 for the countersunk screws 44 to be locked.
以上所述即為本發明第一實施例各主要構件的組態說明。使冷卻液可從該輸入冷卻槽道36進入，並流經該第一徑向穿孔310、該第一冷卻導引槽38、該第三徑向穿孔312、該第二冷卻導引槽39、及該第二徑向穿孔311，最後由輸出冷卻槽道37輸出，藉以完成一冷卻路徑。至於本發明的功效說明如下。The above description is the configuration description of each main component of the first embodiment of the present invention. The coolant can enter from the input cooling channel 36 and flow through the first radial through hole 310, the first cooling guiding groove 38, the third radial through hole 312, the second cooling guiding groove 39, And the second radial through hole 311 is finally outputted by the output cooling channel 37 to complete a cooling path. The effects of the present invention are explained below.
其一、降低組裝成本。由於本發明主要在該螺帽30上設有平行軸線21的輸入冷卻槽道36及輸出冷卻槽道37，且在該螺帽30的第一軸向平面34上設有三個呈並聯排列的第一冷卻導引槽38，在該第二軸向平面35上設有三個呈並聯排列的第二冷卻導引槽39，其中各該第一冷卻導引槽38是藉由該第一徑向穿孔310而與該輸入冷卻槽道36相通，各該第二冷卻導引槽39是藉由該第二徑向穿孔311而與該輸出冷卻槽道37相通，各該第一、第二冷卻導引槽38、39之間再藉由第三徑向穿孔312相通，最後再藉由各該封閉單元40分別封閉各該第一冷卻導引槽38及各該第二冷卻導引槽39，即可讓該輸入冷卻槽道36及輸出冷卻槽道37與每一該第一徑向穿孔310、該第一冷卻導引槽38、該第三徑向穿孔312、該第二冷卻導引槽39、及該第二徑向穿孔311形成一冷卻流道；由此可知，本發明該冷卻流道是採徑向正交設計，軸向並未有貫穿流道設計，無需錐型螺栓鎖附密封，大量減少螺絲使用，且在對該輸入冷卻槽道36、輸出冷卻槽道37、第一徑向穿孔310、第一冷卻導引槽38、第三徑向穿孔312、第二冷卻導引槽39、及第二徑向穿孔311加工完成後，僅需透過一鎖設作業將該封閉單元40鎖固在該螺帽30上並封閉各該第一、第二冷卻導引槽38、39即可完成具冷卻流道的滾珠螺桿，藉以有效降低組裝的步驟及時間，達到降低組裝成本的目的。First, reduce assembly costs. Since the present invention mainly provides the input cooling channel 36 and the output cooling channel 37 of the parallel axis 21 on the nut 30, and three parallel rows are arranged on the first axial plane 34 of the nut 30. a cooling guide groove 38, on the second axial plane 35, three second cooling guide grooves 39 arranged in parallel, wherein each of the first cooling guide grooves 38 is perforated by the first radial direction 310 is in communication with the input cooling channel 36, each of the second cooling guiding grooves 39 is communicated with the output cooling channel 37 by the second radial through hole 311, and the first and second cooling guides are respectively The slots 38 and 39 are communicated by the third radial through holes 312, and finally the first cooling guide slots 38 and the second cooling guide slots 39 are respectively closed by the respective closing units 40. The input cooling channel 36 and the output cooling channel 37 and each of the first radial through holes 310, the first cooling guiding groove 38, the third radial through hole 312, the second cooling guiding groove 39, And the second radial through hole 311 forms a cooling flow passage; thereby, it can be seen that the cooling flow passage of the present invention adopts a radial orthogonal design, and the axial direction is There is a through-flow channel design, no need for a taper bolt locking seal, a large reduction in the use of the screw, and in the input cooling channel 36, the output cooling channel 37, the first radial perforation 310, the first cooling guide groove 38, After the third radial through hole 312, the second cooling guide groove 39, and the second radial through hole 311 are processed, the sealing unit 40 is only locked to the nut 30 by a locking operation and the respective sealing is closed. The first and second cooling guiding grooves 38, 39 can complete the ball screw with the cooling flow path, thereby effectively reducing the assembly steps and time, and achieving the purpose of reducing the assembly cost.
其二、提升冷卻流道的密封性。由於本發明的冷卻流道是由該輸入冷卻槽道36及輸出冷卻槽道37與每一該第一徑向穿孔310、該第一冷卻導引槽38、該第三徑向穿孔312、該第二冷卻導引槽39、及該第二徑向穿孔311所形成，其中需進行密封的部位為該第一冷卻導引槽38及第二冷卻導引槽39，本實施例特別將該封閉單元40由止漏件41、止漏片42及蓋板43等三件式組成，其中先將該止漏件41封設在該第一、第二冷卻導引槽38、39，以形成各該第一、第二冷卻導引槽38、39的第一層密封機制，隨後再將該止漏片42同時封閉各該第一、第二冷卻導引槽38、39及各該止漏件41，以形成各該第一、第二冷卻導引槽38、39的第二層密封機制，最後再將該蓋板43藉由沉頭螺絲44而鎖固在該螺帽30，並同時壓抵各該止漏片42，以形成各該第一、第二冷卻導引槽38、39的第三層密封機制，由此可知，本實施例中該冷卻流道需要進行密封作業的該第一冷卻導引槽38及第二冷卻導引槽39，其主要透過該封閉單元40以三層密封機制所密封，確實能有效地提升冷卻流道的密封性。Second, improve the sealing of the cooling runner. Since the cooling flow path of the present invention is the input cooling channel 36 and the output cooling channel 37 and each of the first radial through holes 310, the first cooling guiding groove 38, the third radial through hole 312, The second cooling guide groove 39 and the second radial through hole 311 are formed, wherein the portion to be sealed is the first cooling guiding groove 38 and the second cooling guiding groove 39, which is particularly closed in this embodiment. The unit 40 is composed of a three-part type of the leakage preventing member 41, the leakage preventing piece 42 and the cover plate 43. The first sealing member 41 is first sealed on the first and second cooling guiding grooves 38 and 39 to form each The first layer sealing mechanism of the first and second cooling guiding grooves 38, 39, and then the sealing piece 42 is simultaneously closed to the first and second cooling guiding grooves 38, 39 and each of the sealing members 41, in order to form a second layer sealing mechanism of each of the first and second cooling guiding grooves 38, 39, and finally the cover plate 43 is locked to the nut 30 by a countersunk screw 44, and simultaneously pressed The third layer sealing mechanism of each of the first and second cooling guiding grooves 38, 39 is formed, so that the cooling channel in the embodiment needs to be Sealing the first cooling operation of the guide groove 38 and the second guide groove 39 is cooled, the main unit 40 through the closure seal triple sealing mechanism, can effectively enhance the sealing performance actually cooling passages.
其三、保持螺帽的有效行程。由於該冷卻流道的設計主要是在該螺帽30上設有平行軸線21的輸入冷卻槽道36及輸出冷卻槽道37，且在該螺帽30的第一軸向平面34上設有三個呈並聯排列的第一冷卻導引槽38，在該第二軸向平面35上設有三個呈並聯排列的第二冷卻導引槽39，隨後在藉由該第一徑向穿孔310、第二徑向穿孔311、及第三徑向穿孔312而使第一、第二冷卻導引槽38、39彼此相通、及與該輸入冷卻槽道36、輸出冷卻流道37相通，最後將該封閉單元40鎖固在該螺帽30上並封閉各該第一、第二冷卻導引槽38、39即可完成具冷卻流道的滾珠螺桿，由此可知，本發明該冷卻流道是採徑向正交設計，軸向並未有貫穿流道設計，而無需使用到軸向檔塊，因此不會增加該螺帽30的軸向長度，確實能夠保持螺帽30的有效行程。Third, keep the effective stroke of the nut. Since the cooling passage is designed mainly on the nut 30, the input cooling channel 36 and the output cooling channel 37 are provided with parallel axes 21, and three of the first axial planes 34 of the nut 30 are provided. a first cooling guide groove 38 arranged in parallel, and three second cooling guide grooves 39 arranged in parallel on the second axial plane 35, followed by the first radial through hole 310, second a radial through hole 311 and a third radial through hole 312 to connect the first and second cooling guide grooves 38 and 39 to each other, and to the input cooling channel 36 and the output cooling flow path 37, and finally the closed unit 40 is locked on the nut 30 and closes each of the first and second cooling guiding grooves 38, 39 to complete the ball screw with the cooling flow path. It can be seen that the cooling flow path of the present invention is radial. The orthogonal design does not have a through-flow passage design in the axial direction, and does not require the use of an axial stop, so the axial length of the nut 30 is not increased, and the effective stroke of the nut 30 can be maintained.
其四、適用性高。由於本發明該冷卻流道的設計，在該螺帽30上沿軸向加工僅具有該輸入冷卻槽道36、輸出冷卻流道37，因此，本發明可對應較大的配件空間，不用考慮法蘭油孔位置與刮刷器螺絲。Fourth, the applicability is high. Due to the design of the cooling flow passage of the present invention, only the input cooling channel 36 and the output cooling flow channel 37 are processed on the nut 30 in the axial direction. Therefore, the present invention can correspond to a large fitting space without consideration. Lan oil hole position with scraper screw.
請參閱圖7所示，本創作第二實施例所提供一種具冷卻流道的滾珠螺桿，其同樣是由螺桿20、套置在該螺桿20的螺帽30、複數設在該螺桿20與螺帽30之間的滾珠50、及設在該螺帽30的封閉單元40所組成，由於其組態及功效同於第一實施例，故不再贅述，至於第二實施例不同處在於：Referring to FIG. 7 , a second embodiment of the present invention provides a ball screw having a cooling flow path, which is also provided by a screw 20 , a nut 30 sleeved on the screw 20 , and a plurality of screws 20 and screws. The ball 50 between the caps 30 and the closed unit 40 of the nut 30 are composed. Since the configuration and the function are the same as those in the first embodiment, they will not be described again. The difference in the second embodiment lies in:
在該螺帽30上僅延著該軸線21方向設有一個軸向平面313，且該軸向平面313上凹設有三個冷卻導引槽314，並具有一最終連通該冷卻導引槽314與該輸入冷卻槽道36的第一徑向穿孔310、及一最終連通該冷卻導引槽314與該輸出冷卻槽道37的第二徑向穿孔311；而同樣藉由該封閉單元40設置在該螺帽30的軸向平面313，進而封閉各該冷卻導引槽314，使該輸入冷卻槽道36、該第一徑向穿孔310、該冷卻導引槽314、該第二徑向穿孔311、及該輸出冷卻槽道37形成該冷卻流道，藉以達成另一種實施狀態。An axial plane 313 is disposed on the nut 30 only in the direction of the axis 21, and the axial plane 313 is recessed with three cooling guiding grooves 314, and has a final communication with the cooling guiding slot 314 and The first radial through hole 310 of the input cooling channel 36 and a second radial through hole 311 which finally communicates with the cooling guiding groove 314 and the output cooling channel 37; and the same is provided by the closing unit 40 The axial plane 313 of the nut 30 further encloses each of the cooling guiding grooves 314 to make the input cooling channel 36, the first radial through hole 310, the cooling guiding groove 314, the second radial through hole 311, And the output cooling channel 37 forms the cooling flow path, thereby achieving another implementation state.
綜上所述，上述各實施例及圖式僅為本發明之較佳實施例而已，當不能以之限定本發明實施之範圍，舉凡依本發明申請專利範圍所作之均等變化與修飾，皆應屬本發明專利涵蓋之範圍內。In the above, the above embodiments and the drawings are only the preferred embodiments of the present invention, and the scope and scope of the present invention should not be limited thereto. It is within the scope of the patent of the present invention.
[習知][知知]
11‧‧‧螺帽11‧‧‧ Nuts
111‧‧‧冷卻通孔111‧‧‧Cooling through hole
12‧‧‧端蓋12‧‧‧End cover
121‧‧‧槽溝121‧‧‧ Groove
14‧‧‧螺帽14‧‧‧ Nuts
141‧‧‧循環凹槽141‧‧‧Circular groove
15‧‧‧蓋板15‧‧‧ Cover
17‧‧‧螺帽17‧‧‧ Nuts
171‧‧‧端面171‧‧‧ end face
172‧‧‧徑向面172‧‧‧radial surface
173‧‧‧軸向流道173‧‧‧Axial runner
174‧‧‧穿孔174‧‧‧Perforation
175‧‧‧徑向流道175‧‧‧radial runner
176‧‧‧錐型螺絲176‧‧‧Conical screw
[本發明][this invention]
20‧‧‧螺桿20‧‧‧ screw
21‧‧‧軸線21‧‧‧ axis
22‧‧‧螺桿環面22‧‧‧ screw torus
23‧‧‧外螺旋槽道23‧‧‧External spiral channel
30‧‧‧螺帽30‧‧‧ Nuts
31‧‧‧內螺旋槽道31‧‧‧inner spiral channel
32‧‧‧第一徑向端面32‧‧‧First radial end face
33‧‧‧第二徑向端面33‧‧‧second radial end face
34‧‧‧第一軸向平面34‧‧‧First axial plane
341‧‧‧螺孔341‧‧‧ screw holes
35‧‧‧第二軸向平面35‧‧‧Second axial plane
351‧‧‧螺孔351‧‧‧ screw hole
36‧‧‧輸入冷卻槽道36‧‧‧Enter cooling channel
37‧‧‧輸出冷卻槽道37‧‧‧Output cooling channel
38‧‧‧第一冷卻導引槽38‧‧‧First cooling guide slot
381‧‧‧第一環肩部381‧‧‧ first ring shoulder
39‧‧‧第二冷卻導引槽39‧‧‧Second cooling guide slot
391‧‧‧第二環肩部391‧‧‧ Second ring shoulder
310‧‧‧第一徑向穿孔310‧‧‧First radial perforation
311‧‧‧第二徑向穿孔311‧‧‧Second radial perforation
312‧‧‧第三徑向穿孔312‧‧‧ Third radial perforation
313‧‧‧軸向平面313‧‧‧Axial plane
314‧‧‧冷卻導引槽314‧‧‧Cooling guide groove
40‧‧‧封閉單元40‧‧‧Closed unit
41‧‧‧止漏件41‧‧‧Too
411‧‧‧止漏部411‧‧‧Omissions
412‧‧‧靠抵部412‧‧‧Relying
42‧‧‧止漏片42‧‧‧
421‧‧‧封閉平面421‧‧‧closed plane
422‧‧‧穿孔422‧‧‧Perforation
43‧‧‧蓋板43‧‧‧ Cover
431‧‧‧沉頭孔431‧‧‧ countersunk hole
44‧‧‧沉頭螺絲44‧‧‧ countersunk head screws
50‧‧‧滾珠50‧‧‧ balls
圖1A是中華民國申請第090106417號一種「具冷卻通道之滾珠螺桿」的其中一圖式； 圖1B是中華民國申請第094114025號一種「冷卻裝置之螺帽」的其中一圖式； 圖1C是中華民國申請第105211596號一種「具冷卻流道之滾珠螺桿」的其中一圖式； 圖2是本發明第一實施例的立體分解圖，顯示封閉單元與螺帽分離的狀態； 圖3是本發明第一實施例的立體組合圖； 圖4是圖3線段4-4的剖面圖； 圖5是圖3線段5-5的剖面圖； 圖6是本發明第一實施例的立體圖，顯示螺帽的立體狀態； 圖7是本發明第二實施例的剖面圖，顯示類似圖4的剖面狀態。Figure 1A is a diagram of a "ball screw with a cooling passage" of the Republic of China application No. 090106417; Figure 1B is a diagram of a "screw of a cooling device" of the Republic of China application No. 094114025; FIG. 2 is a perspective exploded view of the first embodiment of the present invention, showing a state in which the closed unit is separated from the nut; FIG. 3 is a view showing a state in which the closed ball unit is separated from the nut according to the first embodiment of the present invention; Figure 3 is a cross-sectional view of the line segment 4-4 of Figure 3; Figure 5 is a cross-sectional view of the line segment 5-5 of Figure 3; Figure 6 is a perspective view of the first embodiment of the present invention, showing the snail Fig. 7 is a cross-sectional view showing a second embodiment of the present invention, showing a sectional state similar to Fig. 4.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106130363A TWI642861B (en) | 2017-09-06 | 2017-09-06 | Ball screw with a cooling passage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106130363A TWI642861B (en) | 2017-09-06 | 2017-09-06 | Ball screw with a cooling passage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TWI642861B true TWI642861B (en) | 2018-12-01 |
| TW201912978A TW201912978A (en) | 2019-04-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW106130363A TWI642861B (en) | 2017-09-06 | 2017-09-06 | Ball screw with a cooling passage |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI642861B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS584191B2 (en) * | 1977-06-29 | 1983-01-25 | いすゞ自動車株式会社 | Diesel engine starting device |
| CN201696596U (en) * | 2010-06-11 | 2011-01-05 | 上海三一精机有限公司 | Ball screw hollow cooling and sealing device |
| TWM444445U (en) * | 2012-07-20 | 2013-01-01 | Prec Motion Ind Inc | Cooling type double nut |
| JP5804191B2 (en) | 2013-01-25 | 2015-11-04 | 日本精工株式会社 | Ball screw device |
-
2017
- 2017-09-06 TW TW106130363A patent/TWI642861B/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS584191B2 (en) * | 1977-06-29 | 1983-01-25 | いすゞ自動車株式会社 | Diesel engine starting device |
| CN201696596U (en) * | 2010-06-11 | 2011-01-05 | 上海三一精机有限公司 | Ball screw hollow cooling and sealing device |
| TWM444445U (en) * | 2012-07-20 | 2013-01-01 | Prec Motion Ind Inc | Cooling type double nut |
| JP5804191B2 (en) | 2013-01-25 | 2015-11-04 | 日本精工株式会社 | Ball screw device |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201912978A (en) | 2019-04-01 |
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