TWI630333B - Ball screw with a dust-proof assebly - Google Patents
Ball screw with a dust-proof assebly Download PDFInfo
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Abstract
本發明為一種具防塵元件的滾珠螺桿，包含：一螺桿、一螺帽、及一防塵元件，該防塵元件沿該螺桿的軸線方向設於該該螺帽的容置環槽，且套置在該螺桿，該防塵元件並具有一呈環狀的第一防塵部、及一呈弧狀的第二防塵部，該第一防塵部具有一套置在該螺桿的防塵孔，該防塵孔具有一與該螺桿的螺桿環面形成一間隙的防塵孔壁面，該第二防塵部由該防塵孔壁面凸設成型，並具有一與該螺桿的外螺旋槽道接觸的防塵弧段。藉以在具有防塵的效果下同時防止對該螺桿產生過大的預壓，而有效降低磨擦阻力，達成容易組裝及降低啟動扭力的目的。The present invention is a ball screw with a dustproof member, comprising: a screw, a nut, and a dustproof member, the dustproof member is disposed in the accommodating ring groove of the nut along the axial direction of the screw, and is sleeved in The dustproof member has an annular first dustproof portion and an arcuate second dustproof portion, the first dustproof portion having a dustproof hole disposed on the screw, the dustproof hole having a dustproof hole The dustproof hole wall surface forms a gap with the screw ring surface of the screw, and the second dustproof portion is convexly formed by the dustproof hole wall surface and has a dustproof arc segment which is in contact with the outer spiral groove of the screw. Therefore, under the effect of having a dustproof effect, excessive preloading of the screw is prevented at the same time, and the frictional resistance is effectively reduced, thereby achieving the object of easy assembly and reduction of starting torque.
Description
本發明係與滾珠螺桿有關，特別是指一種具防塵元件的滾珠螺桿。The present invention relates to a ball screw, and more particularly to a ball screw having a dustproof member.
參閱圖1A所示，顯示中華民國申請第100136776號一種「滾珠螺桿之防塵元件」的其中一圖式，該防塵元件11係裝設在一滾珠螺桿，該防塵元件11具有一防塵孔111，且於該防塵孔111孔壁面配合螺桿12的外螺旋槽道121具有一防塵唇部112，藉由該防塵唇部112的結構設計，使得該防塵元件11結構單純製作簡單，增加螺桿螺帽的組裝效率。然而，由於該防塵元件11的防塵孔111孔壁面是與該螺桿12的螺桿環面122呈緊密接觸、以及該防塵唇部112是與該螺桿12的外螺旋槽道121呈全牙面積接觸，因此造成組裝時手感較重、不容易入牙而造成不易組裝的缺陷，同時也會提升該滾珠螺桿啟動時所需的扭力。Referring to FIG. 1A, there is shown a diagram of a "dust-proof member of a ball screw" of the Republic of China application No. 100136776. The dust-proof member 11 is mounted on a ball screw having a dustproof hole 111, and The outer spiral channel 121 of the dust-proof hole 111 with the screw wall 12 has a dust-proof lip portion 112. The structure of the dust-proof lip portion 112 is simple and simple, and the assembly of the screw nut is increased. effectiveness. However, since the wall surface of the dustproof hole 111 of the dustproof member 11 is in close contact with the screw ring surface 122 of the screw 12, and the dust lip portion 112 is in full tooth area contact with the outer spiral channel 121 of the screw 12, Therefore, the hand feels heavy during assembly, and it is not easy to enter the tooth, which causes difficulty in assembly, and also increases the torque required when the ball screw is started.
參閱圖1B所示，顯示美國專利(US 7430933B2)有關具防塵元件的滾珠螺桿的其中一圖式。其防塵元件14是利用彈簧15迫緊防塵唇部141，來達到油封與防塵之效果，然而，該防塵元件14的防塵唇部141除了是與該螺桿16的外螺旋槽道161呈全牙面積接觸之外，更藉由該彈簧15迫緊而使得該防塵唇部141與該螺桿16的外螺旋槽道161呈緊密接觸，如此將會提升該滾珠螺桿啟動時所需的扭力。Referring to Figure 1B, there is shown one of the drawings of a ball screw having a dustproof member of the U.S. Patent No. 7,430,933 B2. The dustproof member 14 is urged by the spring 15 to tighten the dust lip portion 141 to achieve the effect of oil seal and dustproof. However, the dust lip portion 141 of the dustproof member 14 has a full tooth area in addition to the outer spiral groove 161 of the screw 16. In addition to the contact, the dust lip 141 is brought into close contact with the outer spiral channel 161 of the screw 16 by the spring 15, which will increase the torque required for the ball screw to start.
參閱圖1C所示，顯示日本專利(JP5192074B2) 有關具防塵元件的滾珠螺桿的其中一圖式。其防塵元件18的防塵唇部181、182設計成兩部份，且分別與該螺桿19的螺桿環面191接觸，因此，過多的結構設計將造成組裝過於繁瑣的缺陷，以及過多的接觸部位將造成該滾珠螺桿啟動時所需扭力提升的缺陷。Referring to Fig. 1C, there is shown one of the drawings of the Japanese patent (JP 5192074B2) regarding a ball screw having a dustproof member. The dust-proof lip portions 181, 182 of the dust-proof member 18 are designed in two parts and are respectively in contact with the screw ring surface 191 of the screw 19, so that excessive structural design will cause too complicated defects in assembly, and excessive contact portions will be A defect that causes the torque to be increased when the ball screw is started.
本發明的目的在於提供一種具防塵元件的滾珠螺桿，其主要達到容易組裝及降低啟動扭力。It is an object of the present invention to provide a ball screw having a dustproof member that is mainly easy to assemble and reduce the starting torque.
緣是，為了達成前述目的，依據本發明所提供一種具防塵元件的滾珠螺桿，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、及一沿該軸線方向凹設於該螺帽其中一端面的容置環槽，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；以及一防塵元件，沿該軸線方向設於該容置環槽且套置在該螺桿，並具有一呈環狀的第一防塵部、及一呈弧狀的第二防塵部，該第一防塵部具有一套置在該螺桿的防塵孔，該防塵孔具有一與該螺桿環面形成一間隙的防塵孔壁面，該第二防塵部由該防塵孔壁面凸設成型，並具有一與該外螺旋槽道接觸的防塵弧段。In order to achieve the foregoing object, a ball screw having a dustproof member according to the present invention includes: a screw having an axis, a screw annulus surrounding the axis, and a screw recessed around the screw ring around the axis An outer spiral channel; a nut sleeved on the screw along the axis, and including an inner spiral channel spirally disposed inside the axis, and a recessed in the axis along the axis An end surface accommodates a ring groove, and the inner spiral channel and the outer spiral channel form a load path for accommodating a plurality of balls; and a dustproof member is disposed in the accommodating ring groove along the axis direction and is sleeved The screw has an annular first dustproof portion and an arc-shaped second dustproof portion, and the first dustproof portion has a set of dustproof holes disposed on the screw, the dustproof hole having a screw The annular surface forms a gap of the dustproof hole wall surface, and the second dustproof portion is convexly formed by the dustproof hole wall surface and has a dustproof arc segment that is in contact with the outer spiral groove.
較佳地，其中該防塵元件的防塵孔壁面與該螺桿的螺桿環面之間的該間隙為0.05公厘至0.3公厘。藉以在達成降低啟動扭力的目的下同時具有較佳的防塵效果。Preferably, the gap between the dustproof wall surface of the dustproof member and the screw annulus of the screw is 0.05 mm to 0.3 mm. Therefore, the dustproof effect is better at the same time for achieving the purpose of reducing the starting torque.
較佳地，其中該第二防塵部具有一第一弧側面及一反向於該第一弧側面的第二弧側面，該第一弧側面與該第二弧側面之間沿該軸線的距離小於該外螺旋槽道的槽口寬度。藉以更能降低啟動扭力。Preferably, the second dustproof portion has a first arc side surface and a second arc side surface opposite to the first arc side surface, and a distance along the axis between the first arc side surface and the second arc side surface Less than the width of the notch of the outer spiral channel. In order to reduce the starting torque.
較佳地，其中該第二防塵部的防塵弧段之弧度大於180度，且該第二防塵部具有第一弧側面及一反向於該第一弧側面的第二弧側面，該第一弧側面與該第二弧側面之間沿該軸線的距離介於0.5公厘至1公厘之間。藉以更為容易組裝同時具有預壓效果。Preferably, the arc of the dustproof portion of the second dustproof portion is greater than 180 degrees, and the second dustproof portion has a first arc side and a second arc side opposite to the first arc side, the first The distance between the side of the arc and the side of the second arc along the axis is between 0.5 mm and 1 mm. It is easier to assemble and has a preload effect.
較佳地，其中該第二防塵部的防塵弧段之弧度小於180度，且該第二防塵部具有第一弧側面及一反向於該第一弧側面的第二弧側面，該第一弧側面與該第二弧側面之間沿該軸線的距離介於2公厘至3公厘之間。Preferably, the arc of the dustproof portion of the second dustproof portion is less than 180 degrees, and the second dustproof portion has a first arc side surface and a second arc side surface opposite to the first arc side surface, the first The distance between the side of the arc and the side of the second arc along the axis is between 2 mm and 3 mm.
較佳地，其中該防塵元件與該螺帽之間設有一墊圈。Preferably, a gasket is disposed between the dustproof member and the nut.
較佳地，其中該防塵元件由橡膠或塑膠所製成。使該防塵元件具有變形裕度，以便於反覆拆裝與組裝。Preferably, the dustproof member is made of rubber or plastic. The dustproof member is provided with a deformation margin for repeated disassembly and assembly.
藉此，本發明特別將該防塵元件的第一防塵部設計與該螺桿的螺桿環面相距有一間隙，該第一防塵部不會對該螺桿產生預壓，避免該第一防塵部對該螺桿產生預壓而提高磨擦阻力，同時讓該防塵元件的組裝更容易，另外搭配本發明將該第二防塵部設計成弧形結構型態，而僅與該螺桿的外螺旋槽道呈弧段接觸，藉以在具有防塵的效果下同時防止對該螺桿產生過大的預壓，而有效降低磨擦阻力，據此，本發明確實能夠達成容易組裝及降低啟動扭力的目的。Therefore, the first dustproof portion of the dustproof member is designed to have a gap from the screw ring surface of the screw, and the first dustproof portion does not preload the screw, and the first dustproof portion is prevented from the screw. Pre-compression is generated to improve the frictional resistance, and the assembly of the dustproof component is made easier. In addition, the second dustproof portion is designed into a curved structure type with the present invention, and is only in contact with the outer spiral groove of the screw. Therefore, the dustproof effect is prevented while preventing excessive preloading of the screw, and the frictional resistance is effectively reduced. Accordingly, the present invention can achieve the object of easy assembly and reduction of starting torque.
在提出詳細說明之前，要注意的是，在以下的說明中，類似的元件是以相同的編號來表示。Before the detailed description is made, it is noted that in the following description, similar elements are denoted by the same reference numerals.
請參閱圖2至圖6所示，本創作第一實施例所提供一種具防塵元件的滾珠螺桿，其主要是由一螺桿20、一螺帽30、及二防塵元件40所組成，其中：Referring to FIG. 2 to FIG. 6 , the first embodiment of the present invention provides a ball screw with a dustproof component, which is mainly composed of a screw 20 , a nut 30 , and two dustproof components 40 , 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.
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、及二沿該軸線21方向分別凹設於該螺帽30兩端面的容置環槽32，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91的負荷路徑。The nut 30 is sleeved on the screw 20 in the direction of the axis 21, and includes an inner spiral channel 31 spirally disposed inside the axis 21, and two recesses are respectively disposed on the nut 30 along the axis 21 direction. The two end faces accommodate the annular groove 32, and the inner spiral channel 31 and the outer spiral channel 23 form a load path for accommodating a plurality of balls 91.
由於該螺桿20、螺帽30以及滾珠91的組裝方式皆為習知，且其作動方式與習知相同，亦非本案的創作重點，因此對於該等構件(指螺桿20、螺帽30以及滾珠91)之詳細結構、組裝方式與作動方式不再詳述。Since the screw 20, the nut 30, and the ball 91 are assembled in a conventional manner, and the manner of actuation thereof is the same as that of the prior art, it is not the focus of the present invention. Therefore, for the components (refer to the screw 20, the nut 30, and the ball) 91) The detailed structure, assembly method and operation mode are not detailed.
該二防塵元件40，分別沿該軸線21方向設於該螺帽30兩側的容置環槽32且同時套置在該螺桿20，並各具有一呈環狀的第一防塵部41、及一呈弧狀的第二防塵部42，該第一防塵部41具有一套置在該螺桿20的防塵孔411，該防塵孔411具有一與該螺桿環面22形成一間隙S的防塵孔壁面411A，該第二防塵部42由該防塵孔壁面411A朝軸線21方向凸設成型，並具有一第一弧側面421、一反向於該第一弧側面421的第二弧側面422、及一連接該第一弧側面421與第二弧側面422之間且與該外螺旋槽道23接觸的防塵弧段423；本實施例中，該防塵元件40與該螺帽20之間設有一墊圈92，且該防塵元件40由橡膠(或塑膠)所製成；另外，該防塵元件40的防塵孔壁面411A與該螺桿20的螺桿環面22之間的該間隙S為0.2公厘，但不以此為限，該間隙S介於0.05公厘至0.3公厘之間皆可；再者，本實施例中，該第二防塵部42的防塵弧段423的弧度R為237度，但不以此為限，該弧度R只要大於180度小於360度皆可；其次，該第一弧側面421與該第二弧側面422之間沿該軸線21的最大距離D為0.5公厘，但不以此為限，該距離D介於0.5公厘至1公厘之間皆可，也就是本實施例中，與該外螺旋槽道23接觸的防塵弧段423，其至少有一0.5公厘的寬度距離D與該外螺旋槽道23接觸，當然該第一弧側面421與該第二弧側面422之間沿該軸線21的距離D小於該外螺旋槽道23的槽口寬度W。The two dustproof members 40 are respectively disposed on the two sides of the nut 30 in the direction of the axis 21, and are respectively sleeved on the screw 20, and each has an annular first dustproof portion 41, and An arc-shaped second dust-proof portion 42 having a dust-proof hole 411 disposed in the screw 20, the dust-proof hole 411 having a dust-proof wall surface forming a gap S with the screw ring surface 22. 411A, the second dustproof portion 42 is convexly formed by the dustproof hole wall surface 411A toward the axis 21, and has a first arc side surface 421, a second arc side surface 422 opposite to the first arc side surface 421, and A dust-proof arc segment 423 is connected between the first arc side surface 421 and the second arc side surface 422 and is in contact with the outer spiral channel 23; in this embodiment, a gasket is disposed between the dustproof member 40 and the nut 20 92, and the dustproof member 40 is made of rubber (or plastic); in addition, the gap S between the dustproof wall surface 411A of the dustproof member 40 and the screw annulus 22 of the screw 20 is 0.2 mm, but not The gap S may be between 0.05 mm and 0.3 mm. In addition, in this embodiment, the second dustproof portion 42 The arc R of the dust-proof arc segment 423 is 237 degrees, but not limited thereto, the arc R may be greater than 180 degrees and less than 360 degrees; secondly, the first arc side 421 and the second arc-side 422 are along the edge The maximum distance D of the axis 21 is 0.5 mm, but not limited thereto, and the distance D is between 0.5 mm and 1 mm, that is, in this embodiment, the outer spiral channel 23 is in contact with a dust-proof arc segment 423 having a width D of at least 0.5 mm in contact with the outer spiral channel 23, of course, the distance D between the first arc side surface 421 and the second arc side surface 422 along the axis 21 is smaller than the distance The notch width W of the outer spiral channel 23.
以上所述即為本發明第一實施例各主要構件的組態說明。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 effects of the present invention are explained below.
由於本發明特別將該防塵元件40的第一防塵部41設計與該螺桿20的螺桿環面22相距有一間隙S，因此，該第一防塵部41不會對該螺桿20產生預壓，避免該第一防塵部41對該螺桿20產生預壓而提高磨擦阻力，同時讓該防塵元件40 的組裝更容易。另外搭配本發明將該第二防塵部42設計成弧形結構型態，而僅與該螺桿20的外螺旋槽道23呈弧段接觸，藉以在具有防塵的效果下同時防止對該螺桿20產生過大的預壓，而有效降低磨擦阻力，據此，本發明確實能夠達成容易組裝及降低啟動扭力的目的。In particular, the first dustproof portion 41 of the dustproof member 40 is designed to have a gap S from the screw ring surface 22 of the screw 20, so that the first dustproof portion 41 does not preload the screw 20, thereby avoiding the The first dustproof portion 41 generates a preload on the screw 20 to increase the frictional resistance, and at the same time, the assembly of the dustproof member 40 is made easier. In addition, with the present invention, the second dust-proof portion 42 is designed in an arc shape, and only contacts the outer spiral channel 23 of the screw 20 in an arc segment, thereby preventing the screw 20 from being generated while having the effect of dustproof. Excessive preloading and effective reduction of frictional resistance, according to the present invention, can achieve the object of easy assembly and reduced starting torque.
值得一提的是，本實施例中，特別將該防塵元件40之第一防塵部41的防塵孔壁面411A與該螺桿20的螺桿環面22之間的該間隙S設定為0.2公厘，因此，除了達到便於組裝以及避免該滾珠螺桿啟動時所需扭力過大之外，更得以先行封阻粒徑較大的粉塵或鐵屑，以執行第一次的防塵作業，同時避免粒徑較大的粉塵或鐵屑破壞該第二防塵部42。It is to be noted that, in the present embodiment, the gap S between the dustproof wall surface 411A of the first dustproof portion 41 of the dustproof member 40 and the screw ring surface 22 of the screw 20 is set to 0.2 mm. In addition to facilitating assembly and avoiding excessive torque required when the ball screw is started, it is also possible to first block dust or iron filings with a large particle size to perform the first dust-proof operation while avoiding a large particle size. The dust or iron filings damage the second dustproof portion 42.
其次，本實施例中，特別將該防塵元件40之第二防塵部42設計具有與該螺桿20之外螺旋槽道23接觸的該防塵弧段423，而有效阻隔細小的粉塵通過該防塵元件40而沾附在各該滾珠91，因而得以執行第二次的防塵作業，同時本實施例將該防塵元件40採用橡膠(或塑膠)所製成，且將該第二防塵部42的防塵弧段423弧度R設定為237度，又將該防塵弧段423設定有一0.5公厘的寬度距離D，而該距離D遠小於該外螺旋槽道23的槽口寬度W，因此，該防塵元件具有適當的變形裕度，以便於反覆拆裝與組裝，且在組裝後該第二防塵部42的防塵弧段423與該外螺旋槽道23接觸，而相對於該螺桿20具有輕度預壓效果。In the embodiment, the second dustproof portion 42 of the dustproof member 40 is designed to have the dustproof arc segment 423 in contact with the spiral channel 23 outside the screw 20, thereby effectively blocking fine dust from passing through the dustproof member 40. And the ball 91 is attached to each of the balls 91, so that the second dustproof operation can be performed. At the same time, the dustproof member 40 is made of rubber (or plastic), and the dustproof portion of the second dustproof portion 42 is removed. The 423 radians R are set to 237 degrees, and the dustproof arc segment 423 is further set to have a width distance D of 0.5 mm, and the distance D is much smaller than the notch width W of the outer spiral channel 23, so that the dustproof member has appropriate The deformation margin is to facilitate the disassembly and assembly, and the dust-proof arc segment 423 of the second dust-proof portion 42 is in contact with the outer spiral channel 23 after assembly, and has a slight pre-pressing effect with respect to the screw 20.
請參閱圖7、圖8及圖9所示，本創作第二實施例所提供一種具防塵元件的滾珠螺桿，其同樣是由螺桿20、螺帽30、及防塵元件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 , FIG. 8 and FIG. 9 , a second embodiment of the present invention provides a ball screw with a dustproof member, which is also composed of a screw 20 , a nut 30 , and a dustproof member 40 . The state and function are the same as those in the first embodiment, so they will not be described again. The difference in the second embodiment lies in:
將該防塵元件40之第二防塵部45的防塵弧段451弧度R設定為121度，該第一弧側面452與該第二弧側面453之間沿該軸線21的最大距離D為2公厘，但不以此為限，當該弧度R小於180度時，該距離D介於2公厘至3公厘之間皆可，除了同樣能夠達到容易組裝及降低啟動扭力的目的之外，更能降低製造所需的材料，降低生產成本。The arc-proof arc 451 of the second dust-proof portion 45 of the dustproof member 40 is set to 121 degrees, and the maximum distance D between the first arc-side surface 452 and the second arc-side surface 453 along the axis 21 is 2 mm. , but not limited to this, when the curvature R is less than 180 degrees, the distance D can be between 2 mm and 3 mm, in addition to the purpose of easy assembly and reduced starting torque, It can reduce the materials needed for manufacturing and reduce production costs.
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‧‧‧防塵元件11‧‧‧Dustproof components
111‧‧‧防塵孔111‧‧‧Dust hole
112‧‧‧防塵唇部112‧‧‧Dust lip
12‧‧‧螺桿12‧‧‧ screw
121‧‧‧外螺旋槽道121‧‧‧External spiral channel
122‧‧‧螺桿環面122‧‧‧Screw torus
14‧‧‧防塵元件14‧‧‧Dustproof components
141‧‧‧防塵唇部141‧‧‧Dust lip
15‧‧‧彈簧15‧‧‧ Spring
16‧‧‧螺桿16‧‧‧ screw
161‧‧‧外螺旋槽道161‧‧‧Spiral spiral channel
18‧‧‧防塵元件18‧‧‧Dustproof components
181、182‧‧‧防塵唇部181, 182‧‧‧ dust lip
19‧‧‧螺桿19‧‧‧ screw
191‧‧‧螺桿環面191‧‧‧Screw torus
[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‧‧‧容置環槽32‧‧‧ accommodate ring groove
40‧‧‧防塵元件40‧‧‧Dustproof components
41‧‧‧第一防塵部41‧‧‧First dustproof part
411‧‧‧防塵孔411‧‧‧Dust hole
S‧‧‧間隙S‧‧‧ gap
411A‧‧‧防塵孔壁面411A‧‧‧Dust hole wall
42、45‧‧‧第二防塵部42, 45‧‧‧Second dustproof department
421、452‧‧‧第一弧側面421, 452‧‧‧ first arc side
422、453‧‧‧第二弧側面422, 453‧‧‧ second arc side
423、451‧‧‧防塵弧段423, 451‧‧‧ dust-proof arc
R‧‧‧弧度R‧‧‧ radians
D‧‧‧距離D‧‧‧Distance
W‧‧‧寬度W‧‧‧Width
91‧‧‧滾珠91‧‧‧ balls
92‧‧‧墊圈92‧‧‧Washers
圖1A是中華民國申請第100136776號一種「滾珠螺桿之防塵元件」的其中一圖式； 圖1B是美國專利(US 7430933B2)有關具防塵元件的滾珠螺桿的其中一圖式； 圖1C是日本專利(JP5192074B2) 有關具防塵元件的滾珠螺桿的其中一圖式； 圖2是本發明第一實施例的立體局部剖面圖； 圖3是本發明第一實施例的剖面圖； 圖4是本發明第一實施例的立體圖，顯示防塵元件的立體狀態； 圖5是圖3線段5-5-的剖面圖； 圖6是圖3的局部放大圖； 圖7是本發明第二實施例的立體圖，顯示防塵元件的立體狀態； 圖8是本發明第二實施例的剖面圖； 圖9是本發明第二實施例的局部剖面圖，顯示類似圖6的剖面狀態。1A is a diagram of a "dust-proof element of a ball screw" of the Republic of China application No. 100136776; FIG. 1B is a diagram of a ball screw with a dustproof member of the US patent (US 7430933B2); (JP5192074B2) FIG. 2 is a perspective view of a first embodiment of the present invention; FIG. 3 is a cross-sectional view of a first embodiment of the present invention; Figure 3 is a cross-sectional view of the line segment 5-5- of Figure 3; Figure 6 is a partial enlarged view of Figure 3; Figure 7 is a perspective view of the second embodiment of the present invention, showing Fig. 8 is a cross-sectional view showing a second embodiment of the present invention; Fig. 9 is a partial cross-sectional view showing a second embodiment of the present invention, showing a cross-sectional state similar to Fig. 6.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106122173A TWI630333B (en) | 2017-07-03 | 2017-07-03 | Ball screw with a dust-proof assebly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106122173A TWI630333B (en) | 2017-07-03 | 2017-07-03 | Ball screw with a dust-proof assebly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TWI630333B true TWI630333B (en) | 2018-07-21 |
| TW201907099A TW201907099A (en) | 2019-02-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW106122173A TWI630333B (en) | 2017-07-03 | 2017-07-03 | Ball screw with a dust-proof assebly |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI630333B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011247404A (en) * | 2010-04-26 | 2011-12-08 | Nsk Ltd | Ball screw |
| TWM455097U (en) * | 2013-01-18 | 2013-06-11 | Tbi Motion Technology Co Ltd | Ball screw |
-
2017
- 2017-07-03 TW TW106122173A patent/TWI630333B/en active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011247404A (en) * | 2010-04-26 | 2011-12-08 | Nsk Ltd | Ball screw |
| TWM455097U (en) * | 2013-01-18 | 2013-06-11 | Tbi Motion Technology Co Ltd | Ball screw |
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| Publication number | Publication date |
|---|---|
| TW201907099A (en) | 2019-02-16 |
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