M383059 五、新型說明： 【新型所屬之技術領域】 [0001] 一種泥水流向控制閥，利用油壓動力使第一、第二 油壓千斤頂伸縮作動，藉由千斤頂壓縮桿上的排齒，嚅 合中心齒輪做圓形轉動，並連動閥箱内同轴心的旋盤閥 體作關閉動作，藉此改變並控制泥水流向，達到工程手 段之所需，因閥組精巧，妨礙性低、裝設容易、運用多 變、堅固耐用，且具操作簡便精確，省力又快速之優點 0 【先前技術】 [0002] 因應都市發展所需，都會區不斷的i在既'有的道路下 埋設各類的管線，其中以汙水管線.，大q徑電力及自來 水管線的高深度埋設較為困難，因埋設深度較深，為避 免在既有的道路上造成交通、環境及其他既設管線之衝 擊與影響，工程界一律以「非開疼埋設管線技術」施工 〇 [0003] 所謂「非開挖埋設管線技術」，即一般泛稱之推進 工法或潛盾工法，其方式為在設計路線上選擇必要且可 施作之點位，設置垂直工作井，在工作井内架設掘進機 械，作水平挖掘施工，同時埋設管線，把各點位串連起 來，達成設計所需之管線系統。.M383059 V. New description: [New technical field] [0001] A mud flow direction control valve that uses hydraulic power to make the first and second hydraulic jacks move and contract, and the teeth on the compression rod of the jack are combined. The center gear rotates in a circular direction, and the concentric valve body in the valve box is connected to close the movement, thereby changing and controlling the flow of the mud water to achieve the engineering means, because the valve group is compact, the obstruction is low, and the installation is easy. It is versatile, sturdy and durable, and has the advantages of simple and precise operation, labor saving and quickness. [Previous technology] [0002] In response to the needs of urban development, the metropolitan area constantly buryes various types of pipelines under the existing roads. Among them, it is more difficult to bury the sewage pipeline., the large q-diameter power and the tap water pipeline. Because the depth of burial is deep, in order to avoid the impact and impact of traffic, environment and other existing pipelines on the existing roads, the project The industry will use "non-opening buried pipeline technology" to construct [0003] so-called "non-excavation buried pipeline technology", which is generally referred to as the promotion method or the shield method. In order to select the necessary and feasible points on the design route, set up vertical working wells, erecting the excavation machinery in the working wells, horizontal excavation construction, and burying the pipelines at the same time, connecting the points together to achieve the pipeline required for the design. system. .
[0004] 當掘進機在地層挖掘時，需將管線同體積之土石掘 除，以便掘進機後方的管材能同時埋設，將土石在地底 深處破壞及挖掘後，如何搬運至地表清除。一般工法有 表單編號A0101 第3頁/共17頁 [0005]M383059 數種，其中凡需要以泥水作為輸送流體的工法，皆需在 其泥水系統的循環作業上做流向及流量的轉換控制，以 滿足工法操作及送排泥之需要。 目前工程界這類的流體閥組設備，不論以機械動力 或人力作動，都因閥組體積龐大而排擠其他設備及人員 操作之空間，本創作之新型控制閥則革除了此缺點。 【新型内容】 [0006] 本創作係提供一種「泥水流向控制閥」，以改良傳 統以人工手部扳動泥水處理裝置的控制閥上方把手時， 人力無法轉動閥門為不同方向，導致泥水系統運作失誤 等問題，希藉此設計，利用油壓推動不同轴’向的驅動第 一、第二油壓千斤頂並立即改變旋盤閥體的方向，便於 控制泥水處理過程時改變泥水流向的操作省力功能，為 本創作之主要目的。 [0007] 因此，本創作係提供一種泥水流向控制閥，其包括 一閥箱、一旋盤閥體、一頂閥蓋、一雇閥蓋及一驅動部 ，其中該閥箱兩側分別設有與水泥進出口銜接管接設的 兩組閥口（共四孔），内部為旋盤室，在旋盤室内緣具有 四個夾銷槽，可供至少四夾銷置入；該旋盤閥體置入旋 盤室中，兩側緣邊設有銷切面，在每一銷切面分別與每 一夾銷形成密切狀態，而銷切面兩側分別設有閥口相貫 穿的水路，上方形成具有齒輪軸的閥軸，下方亦設有閥 軸；該頂閥蓋及底閥蓋係蓋合在閥箱的上、下端，頂、 底閥蓋中心有軸孔係嵌合旋盤閥體的闊軸；該驅動部包 含兩側的第一、第二油壓千斤頂及與該第一 ’、第二油壓 表單編號A0101 第4頁/共17頁 [0008] 千斤頂在相對内側嚆接的中心齒輪，該第一、第二油壓 千斤頂設有排齒並各與中心齒輪形成嚅接傳動狀態。 依據前述之泥水流向控制閥，本創作具有下列之各 項優點： [0009] 1 .本創作利用油壓驅動不同軸向的第一、第二油壓千 斤頂並立即改變旋盤閥體的方向，便於控制泥水處理過 程時改變泥水流向的操作省力功能。 [0010] 2 .本創作可藉由於一閥箱中設置一旋盤閥體，以及閥 箱上方嚅合連動一驅動部，驅動部為分別設有排齒的第 一、第二油壓千斤頂並各與中心齒輪形成，韻.接傳動之設 計，使得油壓推動不同軸向平行的第一、第二油壓千斤 頂並連動旋盤閥體改變其方向，具操作簡便、又省力， 有效控制泥水流向，避免以人工操作費力又費時，並排 除因砂石卡住，以人力無法轉動閥門，導致泥水系統運 作失誤之虞。 【實施方式】 [0011] 有關本創作為上述之目的，所採用之技術及其功效 ，茲舉一較佳實施例，並配合圖式加以說明本創作。 請參閱第1、2圖所示，為本創作係指運用於地下管 線掘進施工之泥水循環系統，並透過油壓控制改變泥水 流向的控制閥10之立體分解圖，如圖所示，至少包括有 一閥箱20、一旋盤閥體30、一頂閥蓋40、一底閥蓋50及 一驅動部60 ;其中 一閥箱20，兩側分別設有與泥水進出口銜接管（圖 表單编號A0101 第5頁/共17頁 未示出）接設的四閥口 21、22,内部為旋盤室23,在旋 盤室23内緣有夾銷槽24，在本實施例中，夾銷槽24有四 個，可供夾銷25置入，在每一夾銷槽24與每一夾銷25係 為相互套置，而在閥箱20上、下端分佈有數固定螺栓孔 26。 一旋盤閥體30，置入閥箱20的旋盤室23中，兩側緣 邊設有销切面31，在本實施例中’鎖切面31有兩個’係 採對角設置，在每一銷切面31分別與每一夾銷25形成密 切狀態，供旋盤閥體30轉動不同方向而定位，而銷切面 31兩側分別設有與閥口 21、22相貫穿的水路32，上方形 成具有齒輪軸33的閥軸34，在本實施例中，齒輪軸33設 為方形，下方亦設有閥軸（圆未示出）。 一頂閥蓋40，係蓋合在閥箱20上端，該頂閥蓋40中 央設有供閥軸34穿伸之軸孔41的凸緣42，並在近外緣設 有數固定孔43，藉閥蓋螺栓44穿入固定孔43而鎖固在閥 箱20上端面的螺栓孔26中，而在近外緣對角位置設有近 接開關固定座45，用以定位中心齒輪90之旋轉角度。 一底閥蓋50，係套置在盒體20的下端，在中央設有 軸孔51，使旋轉閥體30底端閥軸樞接轉動狀態，在近外 緣設有數固定孔52，藉閥蓋螺栓53穿入固定孔52而鎖固 在閥箱20的下端。 一驅動部60，包含兩側的第一、第二油壓千斤頂70 、80及與該第一、第二油壓千斤頂70、80在一端嚆接的 中心齒輪90，其中該第一、第二油壓千斤頂70、80包括 一齒桿套管71、81、一齒桿72、82、二對應封蓋73、83 及二對應環扣74、84，該齒桿套管71、81為中空的油壓 表單編號A0101 第6頁/共17頁 缸711、811，並在近兩端設有凹環712、812及兩端套管 螺牙713、813，而該齒桿套管71、81相對内側設有嵌合 口 714、814 ;該齒桿72、82置入在該齒桿套管71、81的 油壓缸711、811中，該齒桿72、82相對内側設有齒牙 721、821並露出在嵌合口 714、814外，並在近兩端各設 有V形密封圈722、822與防塵密封圈723、823，在本實 施例中’ V形密封圈722、822為塑鋼，其外表面設有抗油 壓的V形槽724、824，而在齒桿72、82兩端部與套管71 、81的油壓缸711、811之間形成一油路725、825，以供 油壓的油由此油路7 2 5、8 2 5注入，再流入V形密封圈7 2 2 、822的V形槽724、824中’使該V形密封圈722、822 受油擠壓並外撐為防漏狀態（如第4圖所示）及配合防塵 密封圈723、823，令齒桿72、82兩端部可在齒桿套管71 、81的油壓缸711、811中不會產生滲油；二對應封蓋73 、83，分別鎖固在齒桿套管71、81兩端的套管螺牙713 、813上，二封蓋73、83—鉗内緣設有0形環730、830止 漏’封蓋螺牙731、831並與齒桿套管71、81兩端的套管 螺牙713、813形成組套，另一侧設有可供油壓進出的通 口 732、832 ;二對應環扣74、84，在本實施例中，鎖固 在上、下對應的環架741、841上，並分別組套在套管71 、81近兩端的凹環712、812外緣，藉環扣螺栓742、842 穿伸並在二環架741、841上固定；該中心齒輪90在本案 實施例中為正齒輪，緣邊設有與齒桿72、82内側的齒牙 721、821形成嚅接傳動的外齒牙91，中央設有齒輪軸孔 92 ’與旋盤閥體30的中心齒輪軸33係為相互喪接傳動。 本創作組合時’ s青參閱第1、2圖所示，藉由於_間 表單編號A0101 第7頁/共17頁 ·， 箱20中設置一旋盤閥體30 -… 驅動部60，驅動部6〇為分別具有窗桿72、82的第一、第 二油壓千斤頂7〇、8〇並各與中心齒輪90形成嚅接傳動之 設計；本創作欲操作1使用時，請參閱第2圖所示，當水由 泥水流向控制閥1 〇其一側泥水進出口銜接管（圖未示出 )注入，並使水將開挖後的淤泥由控制閥1〇另一侧泥水 進出口銜接管（圖未示出）帶出的過程中，當因砂石卡 在管路中’此時，注水繼續流入其一側泥水進出口銜接 管（圖未示出）時，而聚集於另一側泥水進出口銜接管 中之泥水，則需以油壓（如第3圖箭頭所示）分別由該控 制間10在齒桿72、82兩端部輿套*管，7令的油壓缸711 、811之間的油路725、825注入，再嘛入密封圈722 822的V形槽724、824中’使得該V形密封圈722、822 受油擠壓並外標為防漏狀態（如第4圖所示）及配合防塵 密封圈723、823 ’令齒桿72、82兩端部可在齒桿套管71 81的油壓虹711、811中不會產生渗油；藉此，該控制 4透過A壓送油，使得油壓推動不同輪向平行的第一 、第二油壓千斤頂7G、8Q並連祕盤間體30改變其方向 ί如第5圖所示），具操作簡便、又省力，有效控制泥水 4 人工射費力又費時’並排除因砂石卡住 ，以人力無法轉動閥Η’導致泥水系統運作失誤之虞。 本創作已藉上述較佳實_加以·，以上所述者 =本創作之較佳實施例’並非用來限定本創作實施 神=依本創作申請專利範圍所述之技術特徵及精 利⑽料，顧包切本_之申請專 表單編號Α0101 第8頁/共17頁 M383.059 【圖式簡單說明】 [0012] 第1圖：為本創作控制閥立體分解圖。 [0013] 第2圖：為本創作控制閥組合立體圖。 [0014] 第3圖：為本創作控制閥油壓送油之俯視示意圖（一）。 [0015] 第4圖：為第3圖局部之放大示意圖。 [0016] 第5圖：為本創作控制閥油壓送油之俯視示意圖（二）。 【主要元件符號說明】[0004] When the roadheader excavates in the ground, it is necessary to excavate the earth and stone of the same volume, so that the pipe behind the roadhead can be buried at the same time, and how to carry it to the surface to be removed after the earth and stone are destroyed and excavated in the deep underground. The general method has the form number A0101 page 3 / 17 pages [0005] M383059 several kinds of which, in the case of the need to use mud water as the transport fluid, it is necessary to do the flow direction and flow conversion control in the circulation operation of the mud system. Meet the needs of the construction method and the delivery of mud. At present, the fluid valve unit equipment in the engineering field, whether mechanical or manual, is crowded with other equipment and personnel operation space due to the large size of the valve group. The novel control valve of this creation eliminates this disadvantage. [New content] [0006] This creation provides a "mud flow direction control valve" to improve the traditional manual hand to move the upper handle of the control valve of the mud treatment device, the human can not turn the valve in different directions, resulting in the operation of the mud system Mistakes and other problems, I hope to use this design to use oil pressure to drive the different shafts to drive the first and second hydraulic jacks and immediately change the direction of the disc valve body, which is convenient for controlling the operation of the muddy water during the mud treatment process. For the main purpose of this creation. [0007] Therefore, the present invention provides a mud flow direction control valve including a valve box, a rotary valve body, a top valve cover, a service valve cover and a driving portion, wherein the valve box is respectively provided on both sides thereof Two sets of valve ports (four holes in total) connected to the cement inlet and outlet pipe, the inside is a rotary disk chamber, and four pin slots are provided at the inner edge of the rotary disk for at least four pin pins; the disk body is placed in the rotary disk In the chamber, the side edges of the two sides are provided with pin cutting faces, and each pin cutting surface is formed in a close state with each pin, and the water sides of the pin cutting surface are respectively arranged on the two sides of the pin cutting surface, and the valve shaft with the gear shaft is formed above. a valve shaft is also arranged below; the top valve cover and the bottom valve cover are attached to the upper and lower ends of the valve box, and the center of the top and bottom valve covers has a shaft hole that fits the wide shaft of the rotary valve body; the drive portion includes First and second hydraulic jacks on both sides and a central gear that is coupled to the first inner side and the second hydraulic pressure form number A0101, page 4/17 pages [0008] The two hydraulic jacks are provided with teeth and each of them forms a splicing transmission state with the sun gear. According to the aforementioned muddy water flow control valve, the creation has the following advantages: [0009] 1. This creation utilizes hydraulic pressure to drive the first and second hydraulic jacks of different axial directions and immediately change the direction of the rotary valve body, which is convenient. The operation and labor saving function of changing the flow direction of the mud water when controlling the mud water treatment process. [0010] 2. The creation can be achieved by providing a rotary valve body in a valve box and a driving portion above the valve box, the driving portion being the first and second hydraulic jacks respectively provided with teeth and each Formed with the central gear, the design of the rhyme and the transmission makes the hydraulic pressure push the first and second hydraulic jacks with different axial parallels and interlocks the rotary valve body to change its direction. It has simple operation and labor saving, and effectively controls the flow of mud. It is laborious and time-consuming to avoid manual operation, and it is excluded that the sandstone is stuck, and the manpower cannot turn the valve, which causes the muddy water system to malfunction. [Embodiment] [0011] The present invention is directed to a preferred embodiment of the present invention, and the present invention is described with reference to the drawings. Please refer to Figures 1 and 2 for the creation of the mud water circulation system used for underground pipeline excavation construction, and the stereoscopic exploded view of the control valve 10 for changing the flow direction of the mud water through oil pressure control, as shown in the figure, including at least There is a valve box 20, a rotary disc valve body 30, a top valve cover 40, a bottom valve cover 50 and a driving portion 60; one of the valve boxes 20 is provided with a muddy water inlet and outlet connection pipe on both sides (Fig. A0101 Page 5 of 17 is not shown) The four valve ports 21, 22 are connected, and the inside is a rotary disk chamber 23, and a pinch groove 24 is formed at the inner edge of the rotary disk chamber 23. In the present embodiment, the pin groove 24 is provided. There are four pins for inserting the pin 25, and each pin slot 24 and each pin 25 are nested with each other, and a plurality of fixing bolt holes 26 are distributed on the upper and lower ends of the valve box 20. A rotary disc valve body 30 is inserted into the rotary disc chamber 23 of the valve box 20, and the two side edges are provided with a pin cut surface 31. In the present embodiment, the 'lock cut surface 31 has two' pairs of diagonally disposed at each pin. The cutting faces 31 are respectively in close state with each of the pin 25s, and the disk body 30 is rotated in different directions for positioning. The two sides of the pin cutting surface 31 are respectively provided with water passages 32 penetrating the valve ports 21 and 22, and the gear shafts are formed above. In the present embodiment, the valve shaft 33 of the 33 is set to a square shape, and a valve shaft (circular not shown) is also provided below. A top cover 40 is attached to the upper end of the valve box 20, and a flange 42 for the shaft hole 41 through which the valve shaft 34 extends is disposed at the center of the top valve cover 40, and a plurality of fixing holes 43 are provided at the outer edge. The cover bolt 44 is inserted into the fixing hole 43 to be locked in the bolt hole 26 of the upper end surface of the valve box 20, and a proximity switch fixing seat 45 is provided at a diagonal position near the outer edge for positioning the rotation angle of the sun gear 90. A bottom valve cover 50 is sleeved on the lower end of the casing 20, and a shaft hole 51 is arranged in the center, so that the valve shaft of the bottom end of the rotary valve body 30 is pivotally rotated, and a plurality of fixing holes 52 are provided at the outer edge. The cover bolt 53 is inserted into the fixing hole 52 to be locked to the lower end of the valve box 20. a driving portion 60, comprising first and second hydraulic jacks 70, 80 on both sides and a sun gear 90 spliced at one end with the first and second hydraulic jacks 70, 80, wherein the first and second The hydraulic jacks 70, 80 include a rack sleeve 71, 81, a rack 72, 82, two corresponding covers 73, 83 and two corresponding loops 74, 84. The rack sleeves 71, 81 are hollow. Oil pressure form No. A0101 Page 6 of 17 cylinders 711, 811, and concave rings 712, 812 and sleeve threads 713, 813 at both ends are provided at the near ends, and the rack sleeves 71, 81 are opposite The inner side is provided with fitting openings 714, 814; the toothed rods 72, 82 are placed in the hydraulic cylinders 711, 811 of the rack sleeves 71, 81, and the racks 72, 82 are provided with teeth 721, 821 on the inner side. And exposed outside the fitting openings 714, 814, and at each of the two ends are provided with V-shaped sealing rings 722, 822 and dust seals 723, 823, in this embodiment 'V-shaped sealing rings 722, 822 are plastic steel, The outer surface is provided with oil-resistant V-shaped grooves 724, 824, and an oil passage 725, 825 is formed between the two ends of the racks 72, 82 and the hydraulic cylinders 711, 811 of the sleeves 71, 81 for Oily oil from this oil 7 2 5, 8 2 5 injection, and then flow into the V-shaped grooves 724, 824 of the V-shaped sealing ring 7 2 2, 822 'to make the V-shaped sealing ring 722, 822 squeezed by oil and externally supported to prevent leakage ( As shown in Fig. 4) and the dust seals 723 and 823, the two ends of the racks 72 and 82 can prevent oil leakage in the hydraulic cylinders 711 and 811 of the rack sleeves 71 and 81; The cover plates 73 and 83 are respectively locked on the sleeve nut 713 and 813 at the two ends of the rack sleeves 71 and 81, and the second cover 73 and 83 are provided with an O-ring 730 and 830 to stop the seal. The cover screws 731, 831 form a set with the sleeve threads 713, 813 at both ends of the rack sleeves 71, 81, and the other side is provided with ports 732, 832 for oil pressure to enter and exit; 84, in the present embodiment, is locked on the upper and lower corresponding ring frames 741, 841, and is respectively sleeved on the outer edges of the concave rings 712, 812 near the ends of the sleeves 71, 81, by the buckle bolts 742 The 842 is stretched and fixed on the two ring frames 741 and 841. The center gear 90 is a spur gear in the embodiment of the present invention, and the rim is provided with a tooth transmission 721, 821 on the inner side of the toothed rod 72, 82. External tooth 91 with gear shaft in the center The hole 92' and the sun gear shaft 33 of the dial valve body 30 are coupled to each other. In the case of the combination of the creations, as shown in Figs. 1 and 2, by means of the form number A0101, page 7 of 17 pages, a disk valve body 30 is provided in the case 20, the drive unit 60, the drive unit 6 The first and second hydraulic jacks 7〇 and 8〇 respectively having the window bars 72 and 82 are respectively designed to be connected to the sun gear 90; when the present application is to be used, please refer to FIG. 2 It is shown that when the water flows from the muddy water to the control valve 1 and one side of the mud water inlet and outlet connecting pipe (not shown), the water is drained from the control valve 1 to the other side of the mud water inlet and outlet pipe ( The figure is not shown), in the process of bringing out, when the sand is stuck in the pipeline, 'At this time, the water injection continues to flow into the mud water inlet and outlet connection pipe (not shown) on one side, and gathers on the other side of the muddy water. The muddy water in the inlet and outlet connection pipe is required to be hydraulically pressed (as indicated by the arrow in Fig. 3) by the control room 10 at both ends of the racks 72, 82, and the hydraulic cylinder 711 of 7 The oil passages 725, 825 between 811 are injected, and then into the V-shaped grooves 724, 824 of the seal ring 722 822 'to make the V-shaped seal rings 722, 822 oil-squeezed Pressing and externally marking the leakproof state (as shown in Fig. 4) and matching the dust seals 723, 823' so that the ends of the racks 72, 82 can be in the oil pressure rainbow 711, 811 of the rack sleeve 71 81 There is no oil leakage; thereby, the control 4 sends oil through the A pressure, so that the oil pressure pushes the first and second hydraulic jacks 7G, 8Q of different wheel parallel directions and changes the direction of the body 30. Figure 5), easy to operate, and labor-saving, effective control of muddy water 4 manual shooting and time-consuming 'and eliminate the sandstone stuck, the manpower can not turn the valve Η' caused the muddy water system to operate wrong. This creation has been made by the above-mentioned preferred embodiment, and the above-mentioned preferred embodiment of the present invention is not intended to limit the technical features and the fineness (10) of the present invention. , 包包切本_ The application form number Α0101 Page 8 / Total 17 pages M383.059 [Simple diagram description] [0012] Figure 1: The stereoscopic exploded view of the creation control valve. [0013] Fig. 2 is a perspective view showing the combination of the creation control valve. [0014] Figure 3: A schematic top view of the oil supply of the artificial control valve (1). [0015] FIG. 4 is an enlarged schematic view showing a portion of FIG. 3 . [0016] Figure 5: Schematic diagram of the oil supply to the artificial control valve (2). [Main component symbol description]
[0017] (本創作） [0018] 控制閥.1 0 -;閥箱.2 0 [0019] 閥口 . 21、22 旋盤室.23 [0020] 夾銷槽.24 夾銷.25 [0021] 螺栓孔.26 旋盤閥體.30 [0022] 銷切面.31 水路.32 [0023] 齒輪軸.33 閥軸.34 [0024] 頂閥蓋.40 軸孔.41 [0025] 凸緣.42 固定孔.43 [0026] 閥蓋螺栓.44 近接開關固定座.45 [0027] 底閥蓋.50 軸孔.51 [0028] 固定孔.52 閥蓋螺栓.53 [0029] 驅動部.60 表單编號A0101 第9頁/共17頁 M383059 [0030] 第一、第二油壓千斤頂 [0031] 齒桿套管.71、81 [0032] 凹環.712、812 [0033] 欲合口. 714、814 [0034] 齒牙.721、821 [0035] 防塵密封圈.723、823 [0036] 油路.725、825 [0037] 0形環.730、830 [0038] 通口. 732、832 [0039] 環架.741、841 [0040] 中心齒輪.9 0 [0041] 齒輪軸孔.9 2 70、80 油壓缸.711、811 套管螺牙.713、813 齒桿.72、82 V形密封圈.722 ' 822 V形槽.724、824 封蓋.73、83 封蓋螺牙.731、831 、環扣.74、84 環扣螺栓.742、842 外齒牙.91 表單編號ΑΟίΟΙ 第10頁/共17頁[0018] (This creation) [0018] Control valve.1 0 -; valve box. 2 0 [0019] valve port. 21, 22 rotary disk chamber. 23 [0020] pin slot. 24 pin pin. 25 [0021] Bolt hole .26 Disc valve body .30 [0022] Pin section .31 Water path .32 [0023] Gear shaft .33 Valve shaft .34 [0024] Top valve cover .40 Shaft hole .41 [0025] Flange .42 Fixed Hole .43 [0026] bonnet bolt .44 proximity switch mount .45 [0027] bottom bonnet .50 shaft hole .51 [0028] fixing hole .52 bonnet bolt .53 [0029] drive section .60 form No. A0101 Page 9 of 17 M383059 [0030] First and second hydraulic jacks [0031] Rod bushings. 71, 81 [0032] Recessed rings. 712, 812 [0033] For joints. 714, 814 Tooth.721,821 [0035] Dust seals 723, 823 [0036] Oil passages .725, 825 [0037] O-rings 730, 830 [0038] Ports. 732, 832 [0039] Ring frame.741,841 [0040] Center gear.9 0 [0041] Gear shaft hole.9 2 70,80 Hydraulic cylinder.711,811 casing thread.713,813 shank.72,82 V seal Circle .722 ' 822 V-shaped groove. 724, 824 cover. 73, 83 cover thread. 731, 831, buckle. 74, 84 ring bolts. 742, 842 external teeth. 9 1 Form number ΑΟίΟΙ Page 10 of 17