201226730 六、發明說明： 【發明所屬之技術領域】 本案係關於傳動設備’尤指一種應付傳動軸斷裂時的 保護裝置。 【先前技術】 請參閱圖1，為傳動設備的示意圖。其所示的傳動設 備1具有一動力源10，通常是一電動機，此外還具有一輸 出部11與一輸入部12。傳動設備1的用途在於可以在僅 使用一個動力源1 0的情形下，將動力傳導到多個機具（圖 中未揭示）。由於這些機具有時需要減速機構（圖中未揭示） 或其他設施支援’故而需要較大的空間來設置，因此傳動 軸1 3就呈現了扇形的排列’因此在輸出部u上就需要一 輸出部萬向接頭13a與一輸入部萬向接頭13b。請繼續參 閱圖丨’為了提高動力傳輸效率’傳動軸通常都選用細長 的尺寸，亦即，長寬比高’如此轉動慣量低，那麼動力源 1就不會耗費太多的能量在轉動傳動軸13本身而能有更多 的可以傳遞到輪人部m而因為選用了細長狀的傳動轴 13,使之更容易斷裂，而當傳動軸13在斷裂時會甩動而連 帶的打斷隔壁的傳動軸13，一個打斷一個而造成幾乎所有 的傳動軸13都損毁的窘況。還有一個嚴重的問題是斷裂後 的傳動軸1 3 &可能飛出砸到鄰近的其他設施甚至造成人 蓦亡使得損害擴大的離譜，故而傳統上為了避免損害 201226730 擴及無辜，诵赍合 ^ ^ ^ 一個罩子或鐵網（圖中均未揭示）， 財主4的傳動轴13封閉鈕也 造成的損宝 來，使得當傳動軸13的斷裂所 把取幻相害可以控制在該 的設計仍無法避免破斷 二去：而’這種習用 …或是輸出部u、輸八二去二斷、敲擊鄰近的傳 急需一種全新的俘嘈驻¥ 因此在廷類的設備上 < 的保濩裝置來讓損壞減到最低。 幸「H故，中請人有鑑Μ知技術之缺失，發明出本 案應用於一傳動設備的保護 段之缺失。 ^裝置」，心改善上述習用手 【發明内容】 本發明之目的是更有效、更 動設備，透更簡易、更可控的來保護肩 透過將傳動設備的傳動軸予以 傳動軸斷裂時，·^ t 起來，使得Ί 于 由本發明的保護裝置來承；&彳4-± 並承受傳動軸的衝擊力，使其 =承接傳動轴’ 設備所受損宝最低專動軸乃至於整個傳鸯 -相。最低，並可以極大的降低 為了達到上述之目的，本發明 ，0此性， 置，包括-套管，具有一第 ’、-種傳動軸保護裝 一套管與一第二矣普 _^ 、第一知，並包括一第 内，嗲第… 〜第二套管是穿設於該第-套管 "第-套管能夠在第-套管内滑動 連接部，分別設於該第一端與該第二端。 第二 如上所述的保護裝置，其中該第— 接於該套管。 第—連接部是樞 如上所述的保護裝置，其中 弟連接部包括兩第— 201226730 樞接耳，該第二連拄卹 連接4包括兩第二樞接 括兩第三樞接耳，μ * 帛彳該第-套管包 斗該第二套管包括兩第四枢接 一樞接耳分別福接於該μ該兩第 弟一柩接耳，該兩第二樞接耳分 別樞接於該兩第四樞接耳。 伐斗刀 如上所述的保護裝置， 其t一者包括一滑軌，該第 者包括一滑槽。 其中該第一套管與第二套管之 套官與第二套管之其中另一201226730 VI. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a transmission device, particularly a protection device for coping with a broken drive shaft. [Prior Art] Please refer to Figure 1 for a schematic diagram of the transmission equipment. The transmission device 1 shown has a power source 10, typically an electric motor, and has an output portion 11 and an input portion 12. The purpose of the transmission device 1 is to transmit power to a plurality of implements (not shown) in the case where only one power source 10 is used. Since these machines sometimes require a speed reduction mechanism (not shown) or other facilities to support 'there is a need for a large space to set up, the drive shaft 13 presents a fan-shaped arrangement' so an output is required at the output u The universal joint 13a and an input unit universal joint 13b. Please continue to refer to the figure 'In order to improve the power transmission efficiency', the drive shaft usually adopts the slender size, that is, the aspect ratio is high, so the moment of inertia is low, then the power source 1 does not consume too much energy in rotating the drive shaft. 13 itself can have more can be transmitted to the wheel man m because the slender drive shaft 13 is selected to make it easier to break, and when the drive shaft 13 breaks, it will sway and the broken partition wall The drive shaft 13, one that interrupts one and causes almost all of the drive shaft 13 to be destroyed. There is also a serious problem that the broken drive shaft 1 3 & may fly out to other nearby facilities and even cause people to die and make the damage expand outrageously. Therefore, in order to avoid damage to 201226730, it is inextricably integrated. ^ ^ ^ A cover or iron mesh (not shown in the figure), the drive shaft 13 of the rich man 4 closes the button and also causes damage, so that when the break of the drive shaft 13 is taken, the magical damage can be controlled in the design. Still can't avoid breaking the two: and 'this kind of use... or output u, lose eight two to two breaks, tap the neighboring urgent need a new captive station, so on the device of the class Protect the device to minimize damage. Fortunately, "H, the middle of the person has the lack of knowing the technology, invented the absence of the protection section of the case applied to a transmission device. ^Device", the heart improves the above-mentioned hands [invention] The purpose of the present invention is more effective The device is more easily and more controllable to protect the shoulder by breaking the transmission shaft of the transmission device to the transmission shaft, so as to be supported by the protection device of the present invention; & And withstand the impact of the drive shaft, so that it can take the lowest transmission axis of the damaged shaft of the transmission shaft. The lowest, and can be greatly reduced, in order to achieve the above-mentioned purpose, the present invention, the present invention, includes a sleeve, has a ', a type of drive shaft protection to install a sleeve and a second _ _ ^, The first knowledge, and includes an inner, 嗲 ... ... the second sleeve is threaded through the first sleeve - the first sleeve can be slidably connected within the first sleeve, respectively disposed at the first end With the second end. A second protective device as described above, wherein the first is connected to the sleeve. The first connecting portion is a protection device as described above, wherein the connecting portion includes two first - 201226730 pivoting ears, and the second connecting shirt connection 4 includes two second pivoting joints, two third pivoting ears, μ * The second sleeve includes two second pivotal joints, and the second pivotal joints are respectively connected to the two first joints, and the two second pivoting ears are respectively pivotally connected to The two fourth pivoting ears. Flying knife As described above, the protective device, one of which includes a slide rail, the first includes a chute. Wherein the first sleeve and the second sleeve are the other of the sleeve and the second sleeve
如上所述的保護裂置，其中該套管更設有 以使該傳動軸置入該套管或自該套管内取出。 為了達到上述之目的，本發明提供一種傳動設備，包 輸出。ρ與一輸入部；_傳動轴，將動力自該輸出部傳 遞到該輸人部；以及—傳動轴料裝置，具有―容置空間， ::容納該傳動軸於該容置空間A，該傳動轴保護裝置還 :ΓΓ，具有一第—端與一第二端，仏括-第-套 …第二套* ’而該第二套管是穿設於該第一奢管内， :第二套管能夠在第一套管内滑動；以及第—及第二連接 部，分別設於該第一端與該第二端。 如前述的傳動設備，其中該第一連接部是固定於該輸 出部’而該第二連接部則是固定於該輸入部。 如前述的傳動設備，其中該第-及第二連接部是樞接 於該套管。 如前述的傳動設備’其中其中該第一連接部包括兩第 -樞接耳’該第二連接部包括兩第二樞接耳，該第一套管 包括兩第三柩接耳’該第二套管包括兩第四樞接耳，該兩 201226730 該兩第二樞接耳 第一樞接耳分別樞接於該兩第三枢接耳 分別樞接於該兩第四枢接耳。 為了達到上述之目的，本發明再提供一種傳動轴保護 裝置之組裝方法，包括提供—輸出部之輪出部萬向接頭及 一輸入部之輸人部萬向接頭；將第_及第：兩連接部分別 固設於該輸出部及輸入部；將一傳動軸穿入一套管之一第 一套管與一第二套管内；將該傳動轴抱接於輸出部萬向接 頭及輸入部萬向接頭；以及將套管的兩樞接耳棍接於該第 及第二兩連接 一及第一連接部的兩樞接耳，以完成該第 部及套管組裝成該傳動軸保護裝置。 【實施方式】 以下針對本案之應用於 施例進行描述，請參考附圖 法並不必須完全符合所描述 不脫離本案之實際精神及範 修改。 一傳動設備的保護裝置的各實 ’但實際之配置及所採行的方 的内容’熟習本技藝者當能在 圍的情況下，做出種種變化及 請參閱® 2，^本發明的傳動轴保護裝置之一實施例 平面示意圖。其中，傳動軸保護裝置2包括—套管2〇，在 套管20的兩端則各設有一連接部21a、21b，其中一個連 接部21a用來連接傳動設備的輸出部u，另一個連接部21匕 則用來連接傳動設備的輸入部12。在完美的情形之下，各 連接部21與套管20之間可以用固接的方式相連接，亦即 可以將連接部21a至套管20再至另一個連接部2ib視為_ 201226730 個彎管，然而，由於輸出部11與輸入部12之間有時會因 為加工或組裝公差而產生些許相對位移，因此，連接部 21a、21b與套管20之間通常可透過樞軸24a' 24b而相互 樞接。例如連接部2 1 a上的兩樞接耳23a與套管22上的兩 樞接耳22a可透過兩樞軸24a來達到連接部2U樞接套管 22的效果；同理，連接部21b上的兩樞接耳2几與套管u 上的兩樞接耳22b可透過兩樞軸24b來達到連接部2ib樞 接套管22的效果。兩樞接耳23a之間可容納傳動軸13(圖 瞻4所示）與輸出部萬向接頭之連接處’且兩枢接耳23b之間 可容納傳動軸13(圖4所示）與輸入部萬向接頭之連接處。 此外丄由於輸出部U與輸入部12之間會有相對位移，因 此套s 20本身也需具備改變長度的功能以免因擠壓或拉 扯而被破壞，故套管2〇還更分為一第一套管2〇ι與一第二 套管^02 ’而第二套管202即穿設於第一套管2〇1内，並 °在田中π動，所以當輸出部丨丨與輸入部1 2之間發生相 •對位移時，或連接部21a、21b被拉動或套管20被擠壓時， ° 、透過第套管201與第二套管2〇2之間的滑動來吸收 而不會使套管20被破壞。 參閱圖3，為本發明的傳動軸保護裝置之另一實施 面不意圖。其中一如圖2，傳動軸保護裝置2的一連 ι P 213固疋於輸出部11、另—連接部21b固定於輸入部 々套笞〇則與各連接部21 a、21 b樞接。本實施例中， =皆2G的第—套管2()1肖第二套管繼上更設有—拆裝孔 23 ’用來將傳動軸13(請配合圖4)由拆裝孔23進人傳動轴 201226730 保護裝置2内，或是將傳動軸13自傳動軸保護裝置2内取 出，當傳動軸B安置於傳動軸保護裝置2内之後，將第一 套& 201或第一套管202依自身軸向旋轉一角度，通常是 -百八十度’使各自的拆裝孔23錯開，以免當傳動軸13 斷裂時傳_ Π自拆|孔23飛出。此外，亦可在拆裝孔 23上设置一蓋體（圖中未揭示）以加強保護的功效。 請參閱圖4’為本發明的傳動轴保護裝置及傳動轴之 組裂後剖面示意圖。組裝方法之步驟如下：首先提供輸出 部11之輸出部萬向接頭13a及輸入部12之輸入部萬向接 頭m;將連接ma、21b分別固設於輸出部Μ輸入部 12;將傳動軸13穿入套管2〇之第一套管2〇1與第二套管 202内，例如將傳動軸13由套管2〇之前孔或後孔穿入套 管2〇内，或者將傳動軸13由套管2()之拆裝孔穿入套管 2〇内；將傳動軸13樞接於輸出部萬向接頭⑴及輸入部 萬向接頭13b’·最後，將套f 2G的兩枢接耳mb(請 配合圖2)樞接於連接部21a、21b的兩框接耳^(請 配合叫以完成連接部21a、21b及套管2〇組裝成為本 二月的傳動轴保護裝置2,如此使傳動轴保護裝置2具有 一谷置空間，用以容納該傳動轴13於該容置空間内。拆卸 方法之步驟則是以相反順序的步驟進行即可。請繼續參閱 圖4,其中可見傳動軸13之一端藉由萬向接頭樞軸μ “區 於輸出部萬向接頭13a，並透過輸㈣萬向接頭⑴與輸 部^連接’而傳動軸13之另—端還藉由萬向接頭框轴 樞接於輸入部萬向接頭13b，並透過輪入部萬向接頭 201226730 13b與輸入部12連接故而當動力源 ^ 轉動力傳遞到輪 ，、'^配β圖1)將旋 ⑴帶動傳動：萬向一時，此輪出部萬向接頭 專動輛13轉動，而傳動轴u 接頭13b轉動，= 丹帶動輸入部萬向 遞到輸入部12内的此：入部萬向接頭⑽再將旋轉動力傳 本上本^ 機構（圖中未揭示）。由此可見，基 包覆著傳動轴u 似中空的管體 動心 固定在輸出部U與輸入部12上。傳The protective rupture as described above, wherein the sleeve is further provided to allow the drive shaft to be inserted into or removed from the sleeve. In order to achieve the above object, the present invention provides a transmission device, package output. ρ and an input portion; a drive shaft that transmits power from the output portion to the input portion; and a drive shaft device having an "accommodation space," accommodating the drive shaft in the accommodating space A, The transmission shaft protection device further includes: a first end and a second end, and a second sleeve, a second sleeve, and a second sleeve is disposed in the first luxury tube, the second The sleeve is slidable within the first sleeve; and the first and second connecting portions are respectively disposed at the first end and the second end. In the above transmission device, the first connecting portion is fixed to the output portion and the second connecting portion is fixed to the input portion. A transmission device as described above, wherein the first and second connecting portions are pivotally connected to the sleeve. The transmission device as described above, wherein the first connecting portion comprises two first pivoting ears, the second connecting portion comprises two second pivoting ears, the first sleeve comprising two third connecting ears 'the second The sleeve includes two fourth pivoting ears, and the two second pivoting ears of the two second pivoting ears are pivotally connected to the two third pivoting ears respectively. In order to achieve the above object, the present invention further provides a method for assembling a transmission shaft protection device, which comprises a universal joint of a turn-out portion of an output-output portion and a universal joint of an input portion of an input portion; The connecting portion is respectively fixed to the output portion and the input portion; a transmission shaft is inserted into one of the first sleeve and the second sleeve of the sleeve; the transmission shaft is hung to the output joint and the input portion a universal joint; and two pivoting lugs of the sleeve are connected to the two pivoting ears of the first and second connecting ones and the first connecting portion to complete the assembling of the first portion and the sleeve into the transmission shaft protection device . [Embodiment] The following is a description of the application of the present invention, and the reference to the drawings is not necessarily in full compliance with the actual spirit and scope of the present invention. The actual 'but the actual configuration of the protective device of a transmission device and the content of the party to be taken' are familiar to the skilled person when they can make various changes and refer to the transmission of the present invention. A schematic plan view of one embodiment of a shaft protection device. The transmission shaft protection device 2 includes a sleeve 2〇, and a connecting portion 21a, 21b is disposed at each end of the sleeve 20, wherein one connecting portion 21a is used to connect the output portion u of the transmission device, and the other connecting portion 21匕 is used to connect the input portion 12 of the transmission device. In a perfect case, the connecting portions 21 and the sleeve 20 can be connected by fastening, that is, the connecting portion 21a to the sleeve 20 to the other connecting portion 2ib can be regarded as _ 201226730 bends Tube, however, since there is sometimes some relative displacement between the output portion 11 and the input portion 12 due to machining or assembly tolerances, the connecting portions 21a, 21b and the sleeve 20 are generally permeable to the pivot 24a' 24b. Connected to each other. For example, the two pivoting ears 23a on the connecting portion 21a and the two pivoting ears 22a on the sleeve 22 can pass through the two pivots 24a to achieve the effect of the connecting portion 2U pivoting the sleeve 22. Similarly, the connecting portion 21b The two pivoting ears 2 and the two pivoting ears 22b on the sleeve u can pass through the two pivots 24b to achieve the effect of the connecting portion 2ib pivoting the sleeve 22. Between the two pivoting ears 23a, the transmission shaft 13 (shown in FIG. 4) and the output joint of the universal joint can be accommodated, and the transmission shaft 13 (shown in FIG. 4) and the input can be accommodated between the two pivoting ears 23b. The joint of the universal joint. In addition, since there is a relative displacement between the output portion U and the input portion 12, the sleeve s 20 itself also needs to have a function of changing the length to avoid being damaged by squeezing or pulling, so the sleeve 2 is further divided into a first a sleeve 2〇ι and a second sleeve ^02', and the second sleeve 202 is inserted into the first sleeve 2〇1, and is moved in the field, so when the output part is 输入 and the input part When phase-to-displacement occurs between 1 and 2, or when the connecting portions 21a, 21b are pulled or the sleeve 20 is pressed, ° is absorbed by the sliding between the first sleeve 201 and the second sleeve 2〇2. The casing 20 will not be damaged. Referring to Figure 3, another embodiment of the drive shaft protection device of the present invention is not intended. As shown in Fig. 2, a link P1 of the drive shaft protection device 2 is fixed to the output portion 11, and the other connecting portion 21b is fixed to the input portion, and is pivotally connected to each of the connecting portions 21a, 21b. In this embodiment, the first sleeve 2 () 1 of the 2G is second, and the second sleeve is further provided with a dismounting hole 23' for the drive shaft 13 (please cooperate with FIG. 4) to be removed from the hole 23 Entering the drive shaft 201226730 in the protection device 2, or taking the drive shaft 13 out of the drive shaft protection device 2, after the drive shaft B is placed in the drive shaft protection device 2, the first set & 201 or the first set The tube 202 is rotated by an angle in its own axial direction, usually - eight hundred and eighty degrees, so that the respective disassembly holes 23 are staggered so as not to fly out when the drive shaft 13 is broken. In addition, a cover body (not shown) may be provided on the disassembly hole 23 to enhance the protection effect. 4 is a schematic cross-sectional view of the transmission shaft protection device and the transmission shaft of the present invention. The assembly method includes the steps of: first providing the output unit universal joint 13a of the output unit 11 and the input unit universal joint m of the input unit 12; and fixing the connections ma and 21b to the output unit Μ input unit 12; respectively, the drive shaft 13 The first sleeve 2〇1 and the second sleeve 202 are inserted into the sleeve 2, for example, the drive shaft 13 is inserted into the sleeve 2〇 from the front or rear hole of the sleeve 2, or the drive shaft 13 is driven. The sleeve 2 (2) is inserted into the sleeve 2〇; the drive shaft 13 is pivotally connected to the output unit universal joint (1) and the input unit universal joint 13b'. Finally, the two sleeves of the sleeve f 2G are pivoted The ear mb (please refer to FIG. 2) is pivotally connected to the two frame ears of the connecting portions 21a, 21b (please cooperate with the completed connecting portions 21a, 21b and the sleeve 2 to assemble the transmission shaft protection device 2 of this month, Thus, the drive shaft protection device 2 has a valley space for accommodating the drive shaft 13 in the accommodating space. The steps of the detaching method are performed in the reverse order. Please continue to refer to FIG. One end of the drive shaft 13 is pivoted by a universal joint μ "in the output joint universal joint 13a, and through the transmission (four) universal joint (1) and lose ^Connection' and the other end of the drive shaft 13 is pivotally connected to the input unit universal joint 13b by the universal joint frame shaft, and is connected to the input portion 12 through the wheel joint universal joint 201226730 13b, so that the power source is turned Passed to the wheel, '^配β图1) will rotate (1) to drive the transmission: universally, the wheel joint universal joint 13 rotates, and the transmission shaft u joint 13b rotates, = Dan drives the input unit universal This is sent to the input unit 12: the inlet universal joint (10) transmits the rotary power to the mechanism (not shown). It can be seen that the tube body covered with the transmission shaft u is hollow and is fixed at the core. The output unit U and the input unit 12
動軸件1 不與傳動轴保護裝置2有任何的接觸，但是由於傳 部St 透過連接部心加與輸出部11或輸入 二接、，，且傳動轴保護裝置2的套管2〇除本身可以伸 '·且亦與各連接部21a、21b樞接，因此當傳動軸Η :’”輸出部11與輸入部12之間的相對位移而變化時本 發明的傳動軸保護裝置2亦可跟著產生相應的變動，使得 傳動軸保5蔓裝置2可以充分的配合傳動軸丄3自身轉動以外 的動作。 凊參閱圖5，為本發明的傳動軸保護裝置的立體示意 圖。圖5所示的傳動軸保護裝置2是用於細長狀的傳動轴， 故而圖5的傳動軸保護裝置2整體外型比較細長。其中可 見套管20是由第一套管2〇1與第二套管2〇2相套設而組 成，第一套管201與連接部21a的連接是透過樞接耳22a、 23壮與樞軸24a來達成。第二套管202與連接部21b的連接 是透過樞接耳22b、23b與樞軸24b來達成。為了避免干涉 至J套管20内的傳動轴13(請配合圖4)，各枢接耳是設置於 連接部與套管20的外側。理論上，套管20與連接部2 1 a、 201226730 21b的連接僅需一對樞接耳22a(22b)、23a(23b)與樞軸 24a(24b)即可’但是為了顧及受力的平均與對稱，故套管 20與二連接部21a、21b則各以兩對樞接耳22a(22b)、 23a(23b)與樞軸24a(24b)來完成樞接，所以請配合圊4，由 此可見圖4中所示的萬向接頭13a(13b)與萬向接頭樞軸 14a(14b)就位於兩對樞接耳22a(22b)、23a(23b)與樞軸 24a(24b)之間。此外，在圖5中亦可見到第二套管2〇2的 拆裝孔23，其中可見其拆裝孔23是以旋轉一百八十度以 與第一套管202的拆裝孔23(請配合圖3)錯開。 綜上所述，本發明的傳動轴保護裝置可以充分的保護 傳動設備，亦即，當任一傳動軸有破斷的情況出現而有甩 動出現時，傳動軸可以被傳動軸保護裝置所限制住，亦即 破斷的傳動軸僅會在傳動軸保護裝置内甩動、轉動，而不 會波及鄰近的傳動軸。此外，即使傳動軸的力量大到足以 將傳動軸保護裝置破壞，但由於傳動軸保護裝置本身亦具 有質量，0此還是可以吸收傳動幸由的衝擊力，使得傳動轴 的衝擊力降低，況且，由於各個傳動軸均套設本發明的傳 動軸保護裝置，即使某一傳動軸保護裝置由於其内的傳動 軸破斷時衝擊力過大而被破壞，也會先撞擊到另一傳動軸 保護裝置，所以本發明的傳動軸保護裝置亦具有雙重保護 效果，-是限制住内部的傳動軸使之不會任意移動、其二 是保護傳動轴不被外力所傷。可見本發明對於傳動設備的 整體保護上具有更安全、更全面的多種優點，在傳動設備 技術上本發明具有重大的貢獻。 10 201226730 上述實施例僅係為了方便說明而舉例，雖遭熟悉本技 藝之人士任施匠思而為諸般修飾，然皆不脫如附申請專利 範圍所欲保護者。 【圖式簡單說明】 圖1，為傳動設備的示意圖 圖2，為本發明的傳動軸保護裝置之一實施例平面示 意圖； • 圖3，為本發明的傳動軸保護裝置之另一實施例平面 示意圖； 圖4，為本發明的傳動軸保護裝置及傳動軸之組裝後 剖面示意圖；以及 圖5，為本發明的傳動軸保護裝置的立體示意圖。 【主要元件符號說明】 1 :傳動設備 0 10 :動力源 11 :輸出部 12 :輸入部 13 :傳動軸 13a:輸出部萬向接頭 13b:輸入部萬向接頭 14a、14b:萬向接頭枢軸 2 :傳動軸保護裝置 11 201226730 20 :套管 201 :第一套管 202 :第二套管 2 1 a、2 1 b :連接部 22a、22b、23a、23b :樞接耳 23 :拆裝孔 24a、24b :樞軸The moving shaft member 1 does not have any contact with the transmission shaft protection device 2, but since the transmission portion St is coupled to the output portion 11 or the input and output through the connecting portion, the casing 2 of the transmission shaft protection device 2 is removed from itself. It can be extended and also pivoted to the connecting portions 21a, 21b, so that the drive shaft protection device 2 of the present invention can also follow when the relative displacement between the output shaft 11 and the input portion 12 is changed. Corresponding changes are generated, so that the transmission shaft protection device 5 can fully cooperate with the movement of the transmission shaft 丄3 itself. 凊 Refer to FIG. 5, which is a perspective view of the transmission shaft protection device of the present invention. The shaft protection device 2 is for the elongated transmission shaft, so the transmission shaft protection device 2 of Fig. 5 is relatively slim in overall shape, wherein the sleeve 20 is visible from the first sleeve 2〇1 and the second sleeve 2〇2 The connection between the first sleeve 201 and the connecting portion 21a is achieved by the pivoting ears 22a, 23 and the pivot 24a. The connection of the second sleeve 202 and the connecting portion 21b is through the pivoting lug 22b. , 23b and the pivot 24b are achieved. In order to avoid interference to the J sleeve 20 The inner transmission shaft 13 (please cooperate with FIG. 4), each pivoting lug is disposed on the outer side of the connecting portion and the sleeve 20. Theoretically, the connection between the sleeve 20 and the connecting portion 2 1 a, 201226730 21b requires only a pair of pivots. The lugs 22a (22b), 23a (23b) and the pivot 24a (24b) can be 'but in order to take into account the average and symmetry of the force, the sleeve 20 and the two connecting portions 21a, 21b are respectively connected by two pairs of ears. 22a (22b), 23a (23b) and pivot 24a (24b) to complete the pivoting, so please cooperate with the 圊 4, thereby showing the universal joint 13a (13b) and the universal joint pivot 14a shown in Fig. 4. (14b) is located between the two pairs of pivoting lugs 22a (22b), 23a (23b) and the pivot 24a (24b). In addition, the disassembly hole 23 of the second sleeve 2〇2 can also be seen in FIG. It can be seen that the disassembly hole 23 is rotated by one hundred and eighty degrees to be dislocated with the disassembly hole 23 of the first sleeve 202 (please cooperate with FIG. 3). In summary, the transmission shaft protection device of the present invention can be fully The protection transmission device, that is, when any of the transmission shafts is broken and there is a turbulence, the transmission shaft can be limited by the transmission shaft protection device, that is, the broken transmission shaft is only in the transmission shaft Protective equipment The inside is moved and rotated without affecting the adjacent transmission shaft. In addition, even if the power of the transmission shaft is large enough to damage the transmission shaft protection device, since the transmission shaft protection device itself has mass, the transmission shaft can absorb the transmission. Fortunately, the impact force reduces the impact force of the transmission shaft. Moreover, since each transmission shaft is sleeved with the transmission shaft protection device of the present invention, even if a transmission shaft protection device is broken due to the breaking of the transmission shaft therein, the impact force is too large. However, if it is destroyed, it will first hit another transmission shaft protection device. Therefore, the transmission shaft protection device of the present invention also has a double protection effect, that is, the internal transmission shaft is restricted from being arbitrarily moved, and the second is the protection transmission. The shaft is not injured by external force. It can be seen that the present invention has various advantages for safer and more comprehensive protection of the overall transmission equipment, and the present invention has a significant contribution to the transmission equipment technology. 10 201226730 The above-described embodiments are merely examples for the convenience of the description, and those skilled in the art will be able to modify them without departing from the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a transmission device. FIG. 2 is a plan view showing an embodiment of a transmission shaft protection device according to the present invention; FIG. 3 is a plan view showing another embodiment of the transmission shaft protection device according to the present invention. 4 is a schematic cross-sectional view of the transmission shaft protection device and the transmission shaft of the present invention; and FIG. 5 is a perspective view of the transmission shaft protection device of the present invention. [Main component symbol description] 1 : Transmission device 0 10 : Power source 11 : Output portion 12 : Input portion 13 : Transmission shaft 13 a : Output portion Universal joint 13 b : Input portion Universal joint 14a, 14b: Universal joint pivot 2 : Transmission shaft protection device 11 201226730 20 : Casing 201 : First sleeve 202 : Second sleeve 2 1 a, 2 1 b : Connection portion 22a, 22b, 23a, 23b: pivot joint 23: detachment hole 24a , 24b: pivot
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