Company Profile公司簡介
GEMI, headquartered inSouth Croydon, London, UK, is an international company specializing in the design, production and manufacturing of hydraulic couplers.
GEMI independently developed GE-FC series torque limiting hydraulic coupler, which is mainly used in electric equipment, mining equipment, metallurgical equipment, port and dock equipment and other industries. Since its establishment, the company has always adhered to the concept of "the best price, the best quality" to provide customers with the best products and technical support and sound after-sales service. Continuously strive to improve product quality and production technology, and enjoy a high reputation in the industry with advanced technology, unique design and reliable product quality.
捷米（GEMI）總部位于英國倫敦南克羅伊登，是一家專業(yè)設(shè)計和生產(chǎn)制造液力偶合器的國際化公司。
GEMI自主研發(fā)的G E - FC系列限矩型液力偶合器，主要應(yīng)用于電力設(shè)備、礦山設(shè)備、冶金設(shè)備、港口碼頭設(shè)備等行業(yè)。自公司成立以來，始終堅持“價格最優(yōu)、質(zhì)量最好”的理念，為客戶提供最好的產(chǎn)品和技術(shù)支持及健全的售后服務(wù)。持續(xù)不斷地努力提升產(chǎn)品質(zhì)量和生產(chǎn)技術(shù)水平，憑借先進的技術(shù)和獨特的設(shè)計以及可靠的產(chǎn)品質(zhì)量，在業(yè)內(nèi)享有盛譽。
Purpose 液力偶合器用途
Hydraulic couplers are classified as either torque limiting hydraulic couplers or speed regulating hydraulic couplers, depending on their intended purpose. The torque limiting hydraulic coupler is mainly used to provide starting protection for the motor reducer, impact protection during operation, position compensation, and as an energy buffer. The variable speed hydraulic coupler is mainly used to adjust the input/output speed ratio, in addition to all the uses mentioned above for the torque limiting hydraulic coupler.
根據(jù)用途的不同，液力偶合器分為限矩型液力偶合器和調(diào)速型液力偶合器。其中限矩型液力偶合器主要用于對電機減速機的啟動保護及運行中的沖擊保護，位置補償及能量緩沖；調(diào)速型液力偶合器主要用于調(diào)整輸入輸出轉(zhuǎn)速比，其它的功能和限矩型液力偶合器基本一樣。
Working principle工作原理
Hydraulic couplers are non-rigid couplers with liquid as the working medium. The GEMI hydraulic coupling (K series) is a fixed liquid-filled type of coupler that consists of three main parts: the pump wheel, the turbine, and the housing pump wheel and turbine (see figure) form a closed working chamber that can circulate liquid. The pump wheel is installed on the input shaft and the turbine is installed on the output shaft. The two wheels are semi-circular rings with multiple blades arranged along the radial axis. The blades do not contact each other. There is a gap of 3 mm to 4 mm between the blades which form a circular working wheel. The driving wheel is called the pump wheel, the driven wheel is called the turbine, and both the pump wheel and turbine are called working wheels. After the pump wheel and turbine are assembled, an annular cavity is formed, which is filled with working oil.
The GEMI hydraulic coupling (K series) is a fixed liquid-filled type of coupling and consists of three main parts as shown in the figure.
GEMI液力偶合器 (K系列)為固定充液型,由三個主要部件組成（如圖）。
1 - The driving impeller (pump wheel) is installed on the input shaft.主動葉輪 (泵輪)，安裝于輸入軸。
2 - The driven impeller (turbine) is installed on the output shaft.從動葉輪 (渦輪)，安裝于輸出軸。
3 - The housing is connected to the outer impeller flange and has a compression oil seal.外殼，與外部葉輪法蘭聯(lián)接，帶有壓緊油封。
The first two components can be used as pump wheels or turbines.前兩個部件都可以用作泵輪或渦輪。
液力偶合器是以液體為工作介質(zhì)的一種非剛性聯(lián)軸器。液力偶合器的泵輪和渦輪組成一個可使液體循環(huán)流動的密閉工作腔(見上圖)，泵輪裝在輸入軸上,渦輪裝在輸出軸上。兩輪為沿徑向排列著許多葉片的半圓環(huán)，它們相向偶合布置，互不接觸，中間有3mm到4mm的間隙，并形成一個圓環(huán)狀的工作輪。驅(qū)動輪稱為泵輪，被驅(qū)動輪稱為渦輪，泵輪和渦輪都稱為工作輪。泵輪和渦輪裝合后，形成環(huán)形空腔，其內(nèi)充有工作油液。
The pump wheel usually rotates under the drive of internal combustion engine or motor, and the blade drives the oil. Under the centrifugal force, the oil is thrown to the edge of the pump wheel blade. Since the radius of the pump wheel and turbine is equal, when the speed of the pump wheel is greater than the turbine speed, the hydraulic pressure at the outer edge of the pump wheel blade is greater than the hydraulic pressure at the outer edge of the turbine blade. Because the differential pressure fluid impacts the turbine blade, when the external resistance is enough to overcome, the turbine starts to rotate, That is, the kinetic energy is transferred to the turbine to make the turbine and pump wheel rotate in the same direction. After the kinetic energy of the oil drops, it flows back to the pump wheel from the blade edge of the turbine, forming a circulation loop, and its flow path is like a ring helix connected end to end. The hydraulic coupler transmits torque by the change of momentum moment generated by the interaction of liquid, pump wheel and turbine blade. When ignoring the wind loss and other mechanical losses when the impeller rotates, its output (turbine) torque is equalto the input (pump wheel) torque.
泵輪通常在內(nèi)燃機或電機驅(qū)動下旋轉(zhuǎn)，葉片帶動油液，在離心力作用下，這些油液被甩向泵輪葉片邊緣，由于泵輪和渦輪的半徑相等，故當(dāng)泵輪的轉(zhuǎn)速大于渦輪轉(zhuǎn)速時，泵輪葉片外緣的液壓大于渦輪葉片外緣的液壓，由于壓差液體沖擊渦輪葉片，當(dāng)足以克服外阻力時，使渦輪開始轉(zhuǎn)動，即是將動能傳給渦輪，使渦輪與泵輪同方向旋轉(zhuǎn)。油液動能下降后從渦輪的葉片邊緣又流回到泵輪，形成循環(huán)回路，其流動路線如同一個首尾相連的環(huán)形螺旋線。液力偶合器靠液體與泵輪、渦輪的葉片相互作用產(chǎn)生動量矩的變化來傳遞扭矩。在忽略不計葉輪旋轉(zhuǎn)時的風(fēng)損及其他機械損失時，它的輸出(渦輪)扭矩等于輸入(泵輪)扭矩。
