TWM561601U - Gapless fasten device for spindle - Google Patents
Gapless fasten device for spindle Download PDFInfo
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- TWM561601U TWM561601U TW107201512U TW107201512U TWM561601U TW M561601 U TWM561601 U TW M561601U TW 107201512 U TW107201512 U TW 107201512U TW 107201512 U TW107201512 U TW 107201512U TW M561601 U TWM561601 U TW M561601U
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Abstract
一種無間隙主軸鎖定裝置，包括有：彼此機械連接的一齒輪傳動單元與一主軸輸出單元；該主軸輸出單元具有一主軸，該主軸的一端形成為多邊形軸。該齒輪傳動單元包括有：一固定座、一驅動盤、複數個掣動銷與複數個彈性元件，其中，驅動盤延伸有呈對稱配置的二支驅動桿並且穿入固定座的中心穿孔，該驅動盤被一齒輪機構驅動旋轉；該等掣動銷設於固定座的中心穿孔內並且分別位於該多邊形軸的每一邊與該固定座的內徑之間，以及每一驅動桿位於相鄰二個掣動銷之間；該等彈性元件設於該中心穿孔內的相鄰二個該掣動銷之間，並且使彈性元件作用於相鄰的二個掣動銷；藉此，無論主軸正轉或反轉，均能使其中部分掣動梢因為受到彈簧作用而在固定座內被立即鎖定卡住，讓主軸無法轉動，且不因間隙的存在而產生噪音。A gapless spindle locking device includes: a gear transmission unit and a spindle output unit mechanically coupled to each other; the spindle output unit has a main shaft, and one end of the main shaft is formed as a polygonal shaft. The gear transmission unit comprises: a fixing base, a driving plate, a plurality of raking pins and a plurality of elastic elements, wherein the driving plate extends with two driving rods arranged symmetrically and penetrates into a central hole of the fixing seat, the driving The disk is driven to rotate by a gear mechanism; the panning pins are disposed in the central through hole of the fixing seat and respectively located between each side of the polygonal shaft and the inner diameter of the fixing seat, and each driving rod is located adjacent to the two sides. Between the driving pins; the elastic members are disposed between the adjacent two of the tilting pins in the central through hole, and the elastic members are applied to the adjacent two tilting pins; thereby, regardless of whether the spindle rotates forward or reverse, All of them can be locked and locked in the fixed seat due to the action of the spring, so that the spindle can not rotate, and no noise is generated due to the existence of the gap.
Description
本創作涉及一種應用於電動工具，當停止動力時，得以在不產生噪音的條件下無法以外力使主軸旋轉的機構設計。The present invention relates to a mechanism which is applied to a power tool and which is capable of externally rotating the spindle without generating noise when the power is stopped.
習知上諸如電鑽的電動工具係以電力驅動，且包括有插電式、充電式或充、插電兩用式等設計；電鑽不僅可用來夾持鑽頭以鑽孔，更能夾持螺絲起子頭以裝卸螺絲。在方便找到插座的工作場所，插電式的電鑽當然能提供較強的驅動力，但對於未設有插座，或插座離工作標的物較遠而使長度不足的電線不能插電時，則充電式電鑽便能提供較好的選擇。充電式電鑽有時會因電力不足而無法驅動鑽頭或螺絲起子旋轉，但又無法立即充電使用；且插電式電鑽也會遇到突然停電而無法使用的困擾，因而需要將電鑽充當「手動鑽」使用。Conventionally, electric tools such as electric drills are electrically driven, and include plug-in, plug-in or charge-and-plug-type designs; electric drills can be used not only to hold drill bits for drilling, but also to hold screwdrivers. Head to handle the screws. In the workplace where it is convenient to find the socket, the plug-in electric drill can of course provide a strong driving force, but it is charged when the outlet is not provided, or the socket is far away from the working object and the length of the wire cannot be plugged in. Electric drills provide a better choice. Cordless drills sometimes fail to drive the drill or screwdriver to rotate due to insufficient power, but they cannot be recharged immediately; and plug-in drills can also experience sudden power failures and cannot be used, so the drill needs to be used as a manual drill. "use.
早期的習知電鑽結構由於是將結合於馬達驅動軸之主動齒輪直接嚙合於齒輪組，再由齒輪組嚙合於結合在中心軸之被動齒輪而驅動，故將電鑽充當手動鑽使用而施力旋轉時，被動齒輪將反客為主而成為「主動齒輪」，再經由齒輪組傳動至結合於馬達驅動軸之主動齒輪旋轉，因而造成鑽頭或螺絲起子頭在原地空轉之現象，亦即其實際上並無法作手動鑽使用。In the early conventional electric drill structure, since the driving gear coupled to the motor drive shaft is directly meshed with the gear set, and then the gear set is meshed with the driven gear coupled to the central shaft, the electric drill is used as a manual drill and is rotated. When the passive gear is the anti-customer, it becomes the "drive gear", and then the gear train is driven to rotate the drive gear coupled to the motor drive shaft, thereby causing the drill bit or the screwdriver bit to idling in place, that is, it is actually impossible to make Manual drilling is used.
台灣專利公告第410714號與公告第334869號均在於解決前述電動工具所存在的問題，但傳統具有主軸鎖定功能的結構，主要是在一固定環的內徑中設置主軸與複數滾子或鋼珠，當停止動力而以外力將主軸轉動時，主軸得以帶動該些滾子或鋼珠抵觸固定環而鎖定，但由於主軸對邊的加工精度較差而無法保證主軸與固定環之間具有百分之百的同心度，以致於無法確實讓所有滾子或鋼珠平均受力，導致鎖定效果大打折扣。Taiwan Patent Publication No. 410714 and Announcement No. 334869 both solve the problems of the aforementioned power tool, but the conventional structure having a spindle locking function mainly sets a spindle and a plurality of rollers or steel balls in the inner diameter of a fixed ring. When the power is stopped and the external force is rotated, the main shaft can drive the rollers or the steel balls to lock against the fixing ring, but the machining accuracy of the opposite side of the main shaft cannot ensure the 100% concentricity between the main shaft and the fixed ring. As a result, it is impossible to reliably force all the rollers or steel balls to an average, resulting in a significant compromise effect.
台灣專利M363979專利案提供的主軸鎖定裝置則在於解決前述的諸多問題，惟，其機構無論在主軸正轉或反轉時，均會因為機構包含的掣動子與多邊形主軸之間存在間隙，致使作動時會產生噪音，且讓使用者操作時因為間隙的存在而感到不確實。The spindle locking device provided by the Taiwanese patent M363979 patent solves the above problems. However, the mechanism may have a gap between the yoke and the polygonal main shaft included in the mechanism, whether the spindle rotates forward or reverse. Noise is generated when the operation is performed, and the user feels inaccurate due to the presence of the gap during operation.
為了解決掣動子與多邊形主軸之間存在間隙，致使作動時會產生噪音及感到不確實的問題，台灣M383473號專利案即在於提供一種無間隙主軸鎖定裝置，其包括有一固定環、一彈性保持器、複數掣動梢、一驅動盤與一主軸；所述彈性保持器具有一內空間，沿著該內空間的內徑切線方向設有兩兩成對排列在對稱位置的彈性部與柱面，該彈性保持器係設於固定環的內徑中；所述掣動梢係各別設於所述彈性保持器之內空間的一彈性部與一柱面之間；連接於動力系統的驅動盤具有一中心孔，該中心孔周緣分佈有複數個扇形突部，驅動盤的端面設有複數個呈圓周排列並可供該彈性保持器置入其中的凹槽；所述主軸具有外徑呈正多邊形的多角軸，該多角軸係穿設於該驅動盤的中心孔，且多角軸的各邊分別接觸前述每一掣動梢；無論主軸正轉或反轉，均能使其中部分掣動梢因為受到彈性部作用而在固定環內被立即鎖定卡住，讓主軸無法轉動，不因間隙的存在而產生噪音。In order to solve the problem that there is a gap between the tamper and the polygonal main shaft, the noise and the feeling of inaccuracy are caused during the operation. The Taiwanese Patent No. M383473 provides a gapless spindle locking device including a fixing ring and an elastic retention. a plurality of swaying tips, a driving plate and a main shaft; the elastic retainer has an inner space, and two pairs of elastic portions and cylindrical surfaces arranged in a symmetrical position are arranged along a tangential direction of the inner diameter of the inner space. The elastic retainer is disposed in the inner diameter of the retaining ring; the swinging tip is respectively disposed between an elastic portion and a cylindrical surface of the inner space of the elastic retainer; and the driving disk connected to the power system The central hole has a plurality of scallops distributed around the periphery of the central hole, and the end surface of the driving plate is provided with a plurality of grooves arranged circumferentially for the elastic retainer to be inserted therein; the main shaft has a regular polygonal outer diameter a polygonal shaft, the polygonal shaft is disposed in a central hole of the driving plate, and each side of the polygonal shaft respectively contacts each of the swaying tips; whether the spindle is rotated forward or reversed The tip of the cock is immediately locked and locked in the fixing ring by the action of the elastic portion, so that the spindle cannot be rotated, and no noise is generated due to the presence of the gap.
惟，台灣M383473號之機構在運轉時，其中的彈性保持器會與固定環摩擦而產生磨耗，且該彈性保持器係採用塑膠材料製造，高速摩擦時會生熱，溫度愈高，彈性保持器的彈性就愈差﹑保持力也愈差，無法長時間使用，當運轉停止時還會產生明顯的撞擊聲音。However, when the mechanism of Taiwan M383473 is in operation, the elastic retainer will rub against the fixing ring to cause wear, and the elastic retainer is made of plastic material, which generates heat when rubbed at high speed, and the higher the temperature, the elastic retainer The lesser the elasticity, the worse the holding force, the longer it can be used for a long time, and the obvious impact sound when the operation stops.
另一種習知的電動工具主軸鎖定裝置則是利用電磁剎車原理來提供鎖住主軸；其作動原理是在電動工具的馬達設置一組電磁剎車單元，利用電路的佈置與設計，使得當電動工具齒輪箱未輸出動力時自動提供電力予電磁剎車單元，使得電磁剎車單元對馬達軸提供剎車力，從而使主軸被鎖定而無法旋轉。然而，此種習知鎖定裝置的缺點在於若要長時間保持主軸鎖定狀態時，電池必須持續供應電力給電磁剎車單元，造成能源的浪費。Another conventional power tool spindle locking device utilizes the electromagnetic brake principle to provide a locking spindle; the principle of actuation is to provide a set of electromagnetic brake units in the motor of the power tool, using the arrangement and design of the circuit so that the power tool gear When the box does not output power, it automatically supplies power to the electromagnetic brake unit, so that the electromagnetic brake unit provides braking force to the motor shaft, so that the spindle is locked and cannot rotate. However, such a conventional locking device has a disadvantage in that if the spindle is locked for a long time, the battery must continuously supply power to the electromagnetic brake unit, resulting in waste of energy.
本創作的目的，在於解決前述各種電動工具主軸鎖定裝置所存在的缺失，以及利用電磁剎車單元對馬達軸提供剎車力甚耗能源的問題。The purpose of the present invention is to solve the problems of the aforementioned various power tool spindle locking devices, and to utilize the electromagnetic brake unit to provide braking force to the motor shaft, which consumes energy.
本創作的特徵，是利用機械作用方式，使得電動工具無論是動力系統經由驅動盤帶動主軸正、反轉，或主軸主動正、反轉，均不會因為間隙的存在而產生噪音，且停止運轉時也不會產生噪音。The feature of this creation is that the mechanical action mode is adopted, so that the power tool can drive the spindle forward and reverse through the driving disk, or the spindle actively rotates and reverses, no noise is generated due to the existence of the gap, and the operation is stopped. There will be no noise at the time.
基於此，本創作提供的無間隙主軸鎖定裝置，包括有：彼此機械連接的一齒輪傳動單元與一主軸輸出單元，其中，該主軸輸出單元具有一主軸，該主軸具有在軸向方向上相對的一第一端與一第二端，該第二端具有沿著該軸向延伸一長度的多邊形軸；該齒輪傳動單元包括：一固定座，具有一中心穿孔，該多邊形軸延伸進入該中心穿孔；一驅動盤，具有一中央孔，該中央孔的徑向相對兩側對稱地形成有一扇形凸部，並且該多邊形軸穿入該中央孔，該驅動盤的軸向一側延伸有呈對稱配置的二支驅動桿，並且該等驅動桿穿入該固定座的該中心穿孔，該驅動盤被一齒輪機構驅動旋轉；複數個掣動銷，設於該固定座的該中心穿孔內，並且每一個該掣動銷分別位於該多邊形軸的每一邊與該固定座的內徑之間，以及該等驅動桿位於相鄰二個該掣動銷之間；複數個彈性元件，設於該中心穿孔內的相鄰二個該掣動銷之間，並且該彈性元件作用於該相鄰的二個掣動銷，使該等掣動銷的外徑恆保持接觸該等驅動桿。Based on this, the gapless spindle locking device provided by the present invention comprises: a gear transmission unit and a spindle output unit mechanically coupled to each other, wherein the spindle output unit has a main shaft having opposite axial directions. a first end and a second end, the second end having a polygonal axis extending along the axial length; the gear transmission unit comprises: a fixing base having a central perforation, the polygonal shaft extending into the central perforation a driving disk having a central hole, a scalloped convex portion is symmetrically formed on the radially opposite sides of the central hole, and the polygonal shaft penetrates into the central hole, and the axial direction of the driving plate extends symmetrically Two drive rods, and the drive rods penetrate the central perforation of the mount, the drive disc is driven to rotate by a gear mechanism; a plurality of tilting pins are disposed in the central perforation of the mount, and each The swaying pins are respectively located between each side of the polygonal shaft and the inner diameter of the fixing seat, and the driving rods are located between two adjacent swaying pins; Element, disposed adjacent the central bore in between two of the detent pin, and the resilient member to act on the two adjacent latching pin, such detent pin outer diameter of such a constant drive lever is held in contact.
較佳地，所述驅動桿的垂直於其本身軸向的相對兩側可以分別形成有對應該掣動銷之外徑弧度的凹弧面，藉由彈性元件作用於掣動銷使得該掣動銷的外徑接觸該凹弧面。Preferably, the opposite sides of the driving rod perpendicular to the axial direction thereof may be respectively formed with concave curved surfaces corresponding to the outer diameter of the swaying pin, and the elastic member acts on the swaying pin to make the swaying pin The diameter contacts the concave curved surface.
較佳地，所述彈性元件可以是壓縮彈簧。Preferably, the elastic element may be a compression spring.
較佳地，所述齒輪傳動單元還可以包括一圓筒形的外殼，該外殼容納該齒輪傳動單元，並且該固定座固定於該外殼內，該外殼的軸向兩端分別為一第一端與一第二端。Preferably, the gear transmission unit may further include a cylindrical outer casing, the outer casing accommodating the gear transmission unit, and the fixing base is fixed in the outer casing, and the axial ends of the outer casing are respectively a first end and A second end.
本創作的主軸輸出單元還可以包括一前座，該前座的軸向兩端分別為一第一端與一第二端，該前座內部設置至少一軸承，該主軸配合該軸承以設置在該前座，該前座的第二端以至少一固定元件被固定於該外殼的第一端。The spindle output unit of the present invention may further include a front seat. The axial ends of the front seat are respectively a first end and a second end. The front seat is internally provided with at least one bearing, and the main shaft cooperates with the bearing to be disposed in the front seat. The second end of the front seat is secured to the first end of the housing with at least one securing element.
較佳地，本創作中的齒輪機構可以是行星齒輪機構。Preferably, the gear mechanism in the present creation may be a planetary gear mechanism.
和習知同類產品的機構設計相較之下，本創作除了不會因為同心度的問題而影響主軸的平均受力鎖定效果之外，無論是動力系統經由驅動盤帶動主軸正、反轉，或主軸主動正、反轉，均不會因為前述間隙的存在而產生噪音，且金屬製造的彈簧不會受到高速運轉影響而磨耗變形，停止運轉時也不會產生噪音，更能讓使用者操作時感到確實，更避免了習知利用電磁剎車單元對馬達軸提供剎車力而浪費電力能源的問題。Compared with the institutional design of similar products, this creation does not affect the average force locking effect of the spindle due to the problem of concentricity, whether the power system drives the spindle positive or negative through the drive plate, or The spindle is actively positive and negative, and no noise is generated due to the presence of the aforementioned gap, and the metal-made spring is not affected by high-speed operation and is worn and deformed, and no noise is generated when the operation is stopped, and the user can operate. It is true that the problem of using the electromagnetic brake unit to provide braking force to the motor shaft and wasting power energy is avoided.
以下配合圖式及元件符號對本創作的實施方式做更詳細的說明，俾使熟習該項技藝者在研讀本說明書後能據以實施。The implementation of the present invention will be described in more detail below with reference to the drawings and component symbols, so that those skilled in the art can implement the present specification after studying the present specification.
參閱圖1至圖5所示，其中，圖1為顯示本創作無間隙主軸鎖定裝置之外觀平面示意圖；圖2為顯示本創作無間隙主軸鎖定裝置之平面剖視示意圖；圖3為顯示本創作無間隙主軸鎖定裝置之立體局部剖視示意圖；圖4為顯示本創作無間隙主軸鎖定裝置之主要元件組合關係之立體分解圖；以及圖5為沿圖2之5-5方向的立體平面剖視圖。Referring to FIG. 1 to FIG. 5, FIG. 1 is a schematic plan view showing the appearance of the gapless spindle locking device of the present invention; FIG. 2 is a schematic cross-sectional view showing the original gapless spindle locking device; FIG. 3 is a schematic view showing the creation FIG. 4 is a perspective exploded view showing the main component combination relationship of the original gapless spindle locking device; and FIG. 5 is a perspective sectional view taken along line 5-5 of FIG.
本創作提供之無間隙主軸鎖定裝置，其較佳實施例包括有：一齒輪傳動單元20與一主軸輸出單元40，該齒輪傳動單元20與主軸輸出單元40均設於電動工具(例如電鑽)的殼體(圖中未顯示)內部，並且其中，齒輪傳動單元20係設於殼體內部的後方，主軸輸出單元40係設於殼體內部的前方，並且主軸輸出單元40連接於齒輪傳動單元20的前方。所述的「前方」，係指電動工具面向工作物的方向，也就是主軸朝向工作物的一端的方向。同樣的，以下所述的「第一端」係指相對於「前方」的方向，相對的「第二端」則為與「第一端」或「前方」相反的方向。The present invention provides a gapless spindle locking device. The preferred embodiment includes a gear transmission unit 20 and a spindle output unit 40. The gear transmission unit 20 and the spindle output unit 40 are both disposed on a power tool (such as an electric drill). The housing (not shown) is internal, and wherein the gear transmission unit 20 is disposed at the rear of the housing, the spindle output unit 40 is disposed in front of the interior of the housing, and the spindle output unit 40 is coupled to the gear transmission unit 20 The front. The term "front" refers to the direction in which the power tool faces the workpiece, that is, the direction in which the spindle faces one end of the workpiece. Similarly, the "first end" described below refers to the direction of "front", and the opposite "second end" refers to the direction opposite to "first end" or "front".
所述主軸輸出單元40包括：一前座401、複數軸承402、複數墊片403、一主軸404與一扣環405；其中，前座401的軸向兩端分別為一第一端與一第二端，前座401的第二端軸向地延伸一較小直徑的後凸部4012，並且在後凸部4012的外徑上設置複數個螺孔4013，該等螺孔4013的位置係對應於設置在外殼201上的各貫穿孔2012的位置。前座401的內部較佳地設置二個軸承402，並且在兩軸承402的對稱兩外側分別設置一墊片403後，將主軸404穿過該等墊片403與軸承402，然後以扣環405扣住主軸404的扣環溝，以避免主軸404脫離外殼401及軸承402；再者，該主軸404在軸向方向上的第二端形成有沿著該軸向延伸一長度的多邊形軸4042，並且在多邊形軸4042往前端延伸的終端形成外徑大於主軸404外徑的一凸緣4041。前述各元件組合後所構成的主軸輸出單元40係進一步連接至齒輪傳動單元20的第一端(即前端)。The spindle output unit 40 includes a front seat 401, a plurality of bearings 402, a plurality of spacers 403, a main shaft 404 and a buckle 405. The axial ends of the front seat 401 are respectively a first end and a second end. The second end of the front seat 401 axially extends a smaller diameter rear convex portion 4012, and a plurality of screw holes 4013 are disposed on the outer diameter of the rear convex portion 4012, and the positions of the screw holes 4013 are corresponding to The position of each through hole 2012 on the outer casing 201. The inner portion of the front seat 401 is preferably provided with two bearings 402, and after a spacer 403 is respectively disposed on the outer sides of the two symmetric ends of the two bearings 402, the main shaft 404 is passed through the spacers 403 and the bearing 402, and then the buckle 405 is buckled. Holding the buckle groove of the main shaft 404 to prevent the main shaft 404 from being separated from the outer casing 401 and the bearing 402; further, the second end of the main shaft 404 in the axial direction is formed with a polygonal shaft 4042 extending along the axial direction by a length, and A terminal extending toward the front end of the polygonal shaft 4042 forms a flange 4041 having an outer diameter larger than the outer diameter of the main shaft 404. The spindle output unit 40 formed by combining the aforementioned elements is further connected to the first end (ie, the front end) of the gear transmission unit 20.
所述齒輪傳動單元20較佳地包括一圓筒形的外殼201，外殼201內部用以容納止擋件202、彈性元件203、掣動銷204、固定座205、驅動盤206、以及齒輪傳動機構等元件或系統。更詳細地說，所述外殼201在圓筒形的側壁設置複數個徑向貫穿的貫穿孔2012，並且在外殼201的內徑形成有內齒2011；在本創作的較佳實施例中，係在外殼201接近軸向兩端的側壁上以圓周等角度分佈地分別設置四個貫穿孔2012，每一個貫穿孔2012可以分別穿過一螺絲2013。The gear transmission unit 20 preferably includes a cylindrical outer casing 201 for accommodating components such as the stopper 202, the elastic member 203, the raking pin 204, the fixing base 205, the driving plate 206, and the gear transmission mechanism. Or system. In more detail, the outer casing 201 is provided with a plurality of radially penetrating through holes 2012 in the cylindrical side wall, and inner teeth 2011 are formed on the inner diameter of the outer casing 201; in the preferred embodiment of the present invention, Four through holes 2012 are respectively disposed at circumferentially equiangularly distributed on the side walls of the outer casing 201 near the axial ends, and each of the through holes 2012 may pass through a screw 2013, respectively.
前述主軸輸出單元40組合於齒輪傳動單元20的方式，係將前座401之本體4011後端的後凸部4012的外徑設為大致上對應於外殼201的內徑，並且將後凸部4012從外殼201的前端軸向地套入外殼201的內徑中，然後使各貫穿孔2012與各螺孔4013直線對應，再以複數螺絲2013分別穿過貫穿孔2012而鎖入各螺孔4013，以將前座401固定於外殼201。The manner in which the aforementioned spindle output unit 40 is combined with the gear transmission unit 20 is such that the outer diameter of the rear convex portion 4012 at the rear end of the body 4011 of the front seat 401 is substantially corresponding to the inner diameter of the outer casing 201, and the rear convex portion 4012 is removed from the outer casing. The front end of the 201 is axially inserted into the inner diameter of the outer casing 201, and then the through holes 2012 are linearly corresponding to the respective screw holes 4013, and then the plurality of screws 2013 are respectively passed through the through holes 2012 to lock the screw holes 4013, so as to be The front seat 401 is fixed to the outer casing 201.
所述固定座205為一環形體，其外徑表面形成有複數個凸塊2051，並且具有一軸向連通的中心穿孔2051；該固定座205係組合於外殼201的內徑空間中，並且利用該等凸塊2051軸向地嵌合於形成在外殼201內徑壁面的凹槽2014，使得固定座205無法和外殼201相對旋轉；組合於外殼201後的主軸輸出單元40則使主軸404的多邊形軸4042穿入固定座205的中心穿孔2052內。The fixing base 205 is an annular body having a plurality of protrusions 2051 formed on an outer diameter surface thereof and having an axially communicating central through hole 2051; the fixing base 205 is combined in an inner diameter space of the outer casing 201, and The equal projection 2051 is axially fitted to the recess 2014 formed on the inner wall surface of the outer casing 201 such that the fixed seat 205 cannot rotate relative to the outer casing 201; the spindle output unit 40 combined with the outer casing 201 causes the polygonal axis of the main shaft 404. 4042 penetrates into the central perforation 2052 of the mount 205.
所述驅動盤206具有一圓形的盤體2061，該盤體2061具有軸向貫通的一中央孔2064，在中央孔2064的徑向相對兩側對稱地形成有一扇形凸部2065，並且使主軸404的多邊形軸4042穿過止擋件202的多邊形孔2021後穿入該中央孔2064內；該盤體2061的軸向第一端面延伸有呈對稱配置的二支驅動桿2062，盤體2061的相對第二端面則沿著圓周等角地分佈複數支驅動軸桿2063；驅動盤206被組合於外殼201中時，係使該等驅動桿2062穿入固定座205的中心穿孔2052中，並且在各個驅動軸桿2063分別活動配合一驅動行星齒輪207，每一驅動行星齒輪207均嚙合於外殼201內徑的內齒2011。較佳者，本創作還可以進一步在各驅動桿2062的垂直於其本身軸向的相對兩側分別形成有對應該掣動銷204之外徑弧度的凹弧面20621(如圖5所示)。The driving plate 206 has a circular disk body 2061 having a central hole 2064 extending in the axial direction, and a fan-shaped convex portion 2065 is symmetrically formed on the radial opposite sides of the central hole 2064, and the spindle is made The polygonal shaft 4042 of the 404 passes through the polygonal hole 2021 of the stopper 202 and penetrates into the central hole 2064; the axial first end surface of the disk body 2061 extends with two driving rods 2062 arranged symmetrically, and the disk body 2061 The plurality of drive shafts 2063 are equiangularly distributed along the circumference with respect to the second end surface; when the drive discs 206 are assembled in the outer casing 201, the drive rods 2062 are inserted into the center through holes 2052 of the mount 205, and The drive shafts 2063 are respectively movably engaged with a drive planetary gear 207, and each of the drive planetary gears 207 is meshed with the inner teeth 2011 of the inner diameter of the outer casing 201. Preferably, the present invention can further form a concave curved surface 20621 (shown in FIG. 5) corresponding to the outer diameter of the outer diameter of the driving pin 204, respectively, on opposite sides of each of the driving rods 2062 perpendicular to the axial direction thereof.
所述複數個掣動銷204係為具有適當長度的圓柱體，該等掣動銷204被設置於固定座205的中心穿孔2052內，並且使每一個掣動銷204分別位於多邊形軸4042的每一邊與固定座205的內徑之間，以及使各驅動桿2062位於相鄰的二個掣動銷204之間(如圖5所示)。The plurality of raking pins 204 are cylinders having an appropriate length. The ram pins 204 are disposed in the central through hole 2052 of the fixing base 205, and each of the raking pins 204 is respectively located on each side of the polygonal shaft 4042 and fixed. Between the inner diameters of the seats 205, and the drive rods 2062 are positioned between adjacent two tilt pins 204 (as shown in Figure 5).
再者，所述各彈性元件203係設於固定座205的中心穿孔2052內的相鄰二個掣動銷204之間，並且使得彈性元件203作用於相鄰的二個掣動銷204，使得掣動銷204的外徑恆保持接觸驅動桿2062的凹弧面20621。所述彈性元件203較佳為使用壓縮彈簧，其可以是任意數目，惟，基於平衡的考量，最好是偶數，在本創作的實施例中，則是包含有二個彈性元件203，並且呈對稱地設置在固定座205的中心穿孔2052內。Moreover, each of the elastic members 203 is disposed between two adjacent ram pins 204 in the central through hole 2052 of the fixing base 205, and the elastic member 203 acts on the adjacent two raking pins 204, so that the swaying pin The outer diameter of 204 is constantly maintained in contact with the concave curved surface 20621 of the drive rod 2062. Preferably, the elastic member 203 is a compression spring, which may be any number. However, based on balance considerations, it is preferably an even number. In the embodiment of the present invention, two elastic members 203 are included. It is symmetrically disposed within the central perforation 2052 of the mount 205.
本創作的主軸輸出單元40還包括有齒傳動機構，該齒輪傳動機構較佳為行星齒輪機構，包括有：一第一行星盤208，其盤體2081的第一端面中心設置一第一中心齒輪2082，相對的第二端面圓周地分佈複數第一軸桿2083，每一第一軸桿2083活動地組合一第一行星齒輪209，使得第一行星齒輪209可以在第一軸桿2083上自由旋轉，第一中心齒輪2082則嚙合各個驅動行星齒輪207；一第二行星盤210，其盤體2101的第一端面中心設置一第二中心齒輪2102，相對的第二端面圓周地分佈複數第二軸桿2103，每一第一軸桿2103活動地組合一第二行星齒輪211，使得第二行星齒輪211可以在第二軸桿2103上自由旋轉，第二中心齒輪2102則嚙合各個第一行星齒輪209；一第三行星盤212，其盤體2121的第一端面中心設置一第三中心齒輪2122，相對的第二端面圓周地分佈複數第三軸桿2123，每一第三軸桿2123活動地組合一第三行星齒輪213，使得第三行星齒輪213可以在第三軸桿2123上自由旋轉，第三中心齒輪2122則嚙合各個第二行星齒輪211。將一墊片214覆蓋於各個第三行星齒輪213後，將一端蓋216組合固定於外殼201的軸向第二端，該端蓋216的結構係在蓋體2161的一端面形成一前凸部2162，並且具有一中心孔2163，前凸部2162的外徑設有複數個螺孔2164，將前凸部2162套入外殼201的第二端的內徑後使鄰接該端的各個貫穿孔2012對應各個螺孔2164，再將複數螺絲2013分別穿過各個貫穿孔2012以鎖入各螺孔2164，從而將外殼201的第二端封住，避免前述的相關元件掉出外殼201。當組合後的齒輪傳單元20與主軸輸出單元40安裝於電動工具的殼體內時，設於殼體內的馬達驅動軸上的主動齒輪215則穿過端蓋216的中心孔2163並且嚙合各個第三行星齒輪213。The spindle output unit 40 of the present invention further includes a toothed transmission mechanism. The gear transmission mechanism is preferably a planetary gear mechanism, and includes: a first planetary disk 208, and a first central gear is disposed at a center of the first end surface of the disk body 2081. 2082. The opposite second end faces circumferentially distribute a plurality of first shafts 2083. Each of the first shafts 2083 movably combines a first planetary gear 209 such that the first planetary gears 209 can freely rotate on the first shaft 2083. The first sun gear 2082 is engaged with the respective driving planetary gears 207; the second planetary disk 210 is provided with a second sun gear 2102 at the center of the first end surface of the disk body 2101, and the second axis is circumferentially distributed with the second axis The rod 2103, each of the first shafts 2103 movably combines a second planetary gear 211 such that the second planetary gears 211 can freely rotate on the second shaft 2103, and the second sun gear 2102 engages the respective first planetary gears 209. a third planet disk 212, a third central gear 2122 is disposed at a center of the first end surface of the disk body 2121, and a plurality of third shafts 2123 are circumferentially distributed on the opposite second end faces, and each of the third shafts 2123 is live Combining a third planetary gear 213, such that the third planetary gear 213 can rotate freely on the third shaft 2123, a third sun gear 2122 engaged with the respective second planetary gears 211. After a spacer 214 is covered on each of the third planetary gears 213, the one end cover 216 is combined and fixed to the second axial end of the outer casing 201. The end cover 216 is configured to form a front convex portion on one end surface of the cover body 2161. 2162, and having a central hole 2163, the outer diameter of the front convex portion 2162 is provided with a plurality of screw holes 2164, and the front convex portion 2162 is sleeved into the inner diameter of the second end of the outer casing 201, so that the respective through holes 2012 adjacent to the end correspond to each The screw holes 2164 respectively pass the plurality of screws 2013 through the respective through holes 2012 to lock the screw holes 2164, thereby sealing the second end of the outer casing 201, thereby preventing the aforementioned related components from falling out of the outer casing 201. When the combined gear transmission unit 20 and the spindle output unit 40 are mounted in the housing of the power tool, the driving gear 215 provided on the motor driving shaft in the housing passes through the center hole 2163 of the end cover 216 and engages each of the third Planetary gear 213.
本創作之主軸鎖定裝置的作動方式為：當要驅動主軸404主動旋轉以帶動諸如鑽頭或螺絲起子等工具頭時，電動工具所設之馬達(圖中未顯示)係驅動前述之行星齒輪傳動機構以減速運轉，進而經由驅動行星齒輪207帶動驅動盤206旋轉。以圖5的方向為例，假設驅動盤206逆時針旋轉，兩驅動桿2062的凹弧面20621將會推動兩摯動梢204，摯動梢204再推動兩彈性元件203產生變形，使得兩掣動梢204受到變形的彈性元件203壓迫而緊密地保持在彈性元件203與另外的掣動銷204之間。驅動盤206的中央孔2064之各扇形突部2065的一斜邊會因為偏轉而接觸到多邊形軸4042的多角形邊，以帶動主軸404旋轉；因此，掣動梢204會隨多邊形軸4042移動，彈性元件203則受到壓迫變形而儲存彈力，使摯動梢204被推向於多邊形軸4042的多角形邊與固定座205之間滾動，因而不會有間隙產生。亦即，當驅動盤206帶動主軸404旋轉時，亦同時帶動彈性元件203與各個掣動梢204在固定座205內旋轉。當馬達停止作動時，主軸404被受到彈性元件203之彈力推動的摯動梢204立即鎖定卡住，且不會因慣性作用致使摯動梢204與固定座205之間產生大於零距離的撞擊而產生噪音。The spindle locking device of the present invention is operated in such a manner that when the spindle 404 is to be driven to actively rotate to drive a tool head such as a drill or a screwdriver, the motor (not shown) of the power tool drives the aforementioned planetary gear transmission mechanism. The drive plate 206 is rotated by the drive planetary gear 207 by the deceleration operation. Taking the direction of FIG. 5 as an example, assuming that the driving disk 206 rotates counterclockwise, the concave curved surface 20621 of the two driving rods 2062 will push the two rotating tips 204, and the rotating tip 204 pushes the two elastic members 203 to deform, so that two turns The movable tip 204 is pressed by the deformed elastic member 203 to be tightly held between the elastic member 203 and the additional raking pin 204. An oblique side of each of the scallops 2065 of the central hole 2064 of the drive plate 206 contacts the polygonal side of the polygonal shaft 4042 due to the deflection to drive the main shaft 404 to rotate; therefore, the swaying tip 204 moves with the polygonal axis 4042. The elastic member 203 is subjected to compression deformation to store the elastic force, so that the tilting tip 204 is pushed toward the polygonal side of the polygonal shaft 4042 to roll between the fixed seat 205, so that no gap is generated. That is, when the driving disk 206 drives the main shaft 404 to rotate, the elastic member 203 and the respective tilting tips 204 are simultaneously rotated in the fixing base 205. When the motor stops acting, the spindle 404 is immediately locked by the urging tip 204 pushed by the elastic force of the elastic member 203, and does not cause an impact greater than zero distance between the cocking tip 204 and the fixing seat 205 due to inertia. generates noise.
同樣如圖5所示，當本創作不提供電力而欲作為手動工具時，則在馬達停止作動的狀況下，主軸404被施予扭矩時，多邊形軸4042會立即被卡住。亦即，掣動梢204受彈性元件203作用，使其於多邊形軸4042與固定座205之間不會有間隙產生，讓主軸404立即被鎖定無法旋轉。本創作藉由前述的結構，利用掣動梢204受彈性元件203的彈力作用，使其於主軸之多邊形軸4042各邊與固定座205之間能有效地消除間隙，避免主軸正轉或反轉時產生噪音。Similarly, as shown in FIG. 5, when the present invention does not provide electric power and is intended to be a manual tool, the polygonal shaft 4042 is immediately caught when the spindle 404 is biased with the motor stopped. That is, the tweeting tip 204 is acted upon by the elastic member 203 so that no gap is generated between the polygonal shaft 4042 and the fixed seat 205, so that the spindle 404 is immediately locked and cannot be rotated. According to the foregoing structure, the swaying tip 204 is biased by the elastic force of the elastic member 203 to effectively eliminate the gap between the sides of the polygonal shaft 4042 of the main shaft and the fixing seat 205, thereby avoiding the forward or reverse rotation of the spindle. It produces noise.
以上所述者僅為用以解釋本創作之較佳實施例，並非企圖具以對本創作做任何形式上之限制，是以，凡有在相同之創作精神下所作有關本創作之任何修飾或變更，皆仍應包括在本創作意圖保護之範疇。The above description is only for the purpose of explaining the preferred embodiment of the present invention, and is not intended to impose any limitation on the present creation, so that any modifications or changes to the creation made in the same creative spirit are made. , should still be included in the scope of protection of this creative intent.
20‧‧‧齒輪傳動單元
201‧‧‧外殼
2011‧‧‧內齒
2012‧‧‧貫穿孔
2013‧‧‧螺絲
2014‧‧‧凹槽
202‧‧‧止擋件
2021‧‧‧多邊形孔
203‧‧‧彈性元件
204‧‧‧掣動銷
205‧‧‧固定座
2051‧‧‧凸塊
2052‧‧‧中心穿孔
206‧‧‧驅動盤
2061‧‧‧盤體
2062‧‧‧驅動桿
20621‧‧‧凹弧面
2063‧‧‧驅動軸桿
2064‧‧‧中央孔
2065‧‧‧扇形凸部
207‧‧‧驅動行星齒輪
208‧‧‧第一行星盤
2081‧‧‧盤體
2082‧‧‧第一中心齒輪
2083‧‧‧第一軸桿
209‧‧‧第一行星齒輪
210‧‧‧第二行星盤
2101‧‧‧盤體
2102‧‧‧第二中心齒輪
2103‧‧‧第二軸桿
211‧‧‧第二行星齒輪
212‧‧‧第三行星盤
2121‧‧‧盤體
2122‧‧‧第三中心齒輪
2123‧‧‧第三軸桿
213‧‧‧第三行星齒輪
214‧‧‧墊片
215‧‧‧主動齒輪
216‧‧‧端蓋
2161‧‧‧蓋體
2162‧‧‧前凸部
2163‧‧‧中心孔
2164‧‧‧螺孔
40‧‧‧主軸輸出單元
401‧‧‧前座
4011‧‧‧本體
4012‧‧‧後凸部
4013‧‧‧螺孔
402‧‧‧軸承
403‧‧‧墊片
404‧‧‧主軸
4041‧‧‧凸緣
4042‧‧‧多邊形軸
405‧‧‧扣環20‧‧‧ Gear Drive Unit
201‧‧‧ Shell
2011‧‧‧ internal teeth
2012‧‧‧through holes
2013‧‧‧ screws
2014‧‧‧ Groove
202‧‧‧stops
2021‧‧‧Polygonal holes
203‧‧‧Flexible components
204‧‧‧掣动销
205‧‧‧ fixed seat
2051‧‧‧Bumps
2052‧‧‧ center piercing
206‧‧‧ drive disk
2061‧‧‧ dish
2062‧‧‧ drive rod
20621‧‧‧ concave curved surface
2063‧‧‧Drive shaft
2064‧‧‧Central hole
2065‧‧‧ sector convex
207‧‧‧Drive planetary gears
208‧‧‧First planet disk
2081‧‧‧ dish
2082‧‧‧First central gear
2083‧‧‧First shaft
209‧‧‧First planetary gear
210‧‧‧Second Planetary Disk
2101‧‧‧ dish
2102‧‧‧Second center gear
2103‧‧‧Second shaft
211‧‧‧Second planetary gear
212‧‧‧ Third Planetary Disk
2121‧‧‧ dish
2122‧‧‧ Third central gear
2123‧‧‧ Third shaft
213‧‧‧ Third planetary gear
214‧‧‧shims
215‧‧‧Drive gear
216‧‧‧End cover
2161‧‧‧ cover
2162‧‧‧Front convex
2163‧‧‧ center hole
2164‧‧‧ screw holes
40‧‧‧Spindle output unit
401‧‧‧ front seat
4011‧‧‧ Ontology
4012‧‧‧After convex
4013‧‧‧ screw hole
402‧‧‧ bearing
403‧‧‧shims
404‧‧‧ Spindle
4041‧‧‧Flange
4042‧‧‧Polygon shaft
405‧‧‧ buckle
圖1為顯示本創作無間隙主軸鎖定裝置之外觀平面示意圖； 圖2為顯示本創作無間隙主軸鎖定裝置之平面剖視示意圖； 圖3為顯示本創作無間隙主軸鎖定裝置之立體局部剖視示意圖； 圖4為顯示本創作無間隙主軸鎖定裝置之主要元件組合關係之立體分解圖；以及 圖5為沿圖2之5-5方向的立體平面剖視圖。1 is a schematic plan view showing the appearance of the gapless spindle locking device of the present invention; FIG. 2 is a schematic cross-sectional view showing the gapless spindle locking device of the present invention; FIG. 3 is a schematic partial cross-sectional view showing the gapless spindle locking device of the present invention. Fig. 4 is an exploded perspective view showing the main component combination relationship of the present invention without gap mastering; and Fig. 5 is a perspective sectional view taken along line 5-5 of Fig. 2.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107201512U TWM561601U (en) | 2018-01-31 | 2018-01-31 | Gapless fasten device for spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107201512U TWM561601U (en) | 2018-01-31 | 2018-01-31 | Gapless fasten device for spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TWM561601U true TWM561601U (en) | 2018-06-11 |
Family
ID=63257469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW107201512U TWM561601U (en) | 2018-01-31 | 2018-01-31 | Gapless fasten device for spindle |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWM561601U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI729619B (en) * | 2019-12-12 | 2021-06-01 | 薪螢企業有限公司 | Torque screwdriver device |
-
2018
- 2018-01-31 TW TW107201512U patent/TWM561601U/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI729619B (en) * | 2019-12-12 | 2021-06-01 | 薪螢企業有限公司 | Torque screwdriver device |
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