產(chǎn)品概述

GM系列液壓馬達是本公司集合多年生產(chǎn)實踐經(jīng)驗，在原有 的技術(shù)基礎(chǔ)上進行了設(shè)計改進。使GM系列馬達殼體強度增 加，內(nèi)部動態(tài)元件承載能力增強。這一特點使該系列馬達具 有很高的連續(xù)功率范圍。由于機械效率和容積效率高，同時 又減少了內(nèi)部單位負(fù)載力，因此減少了熱量產(chǎn)生及與此相關(guān) 的負(fù)面效應(yīng)。其主要特點如下：

1、由于活塞與擺缸不存在側(cè)向力，活塞底部設(shè)計成靜壓平衡， 活塞與曲軸之間通過滾動軸承傳遞扭力，這些均減少了傳 力過程中的摩擦損失。因而GM系列液壓馬達具有很高 的機械效率、高的啟動扭矩（啟動時機械效率92%以上） 的特點。

2、平面配流器簡單可靠，密封性好，泄漏很少。活塞與擺缸 之間用塑料活塞密封無泄漏，因而有很高的容積效率（可達98%）。

3、由于結(jié)構(gòu)上減少了摩擦損失，提高了密封性能，因而低速 穩(wěn)定性好，可以在10r/min I況下平穩(wěn)運轉(zhuǎn)，調(diào)速范圍大（速度調(diào)節(jié)比可達1000）

4、由于活塞與軸承套通過卡環(huán)貼牢不存在間隙，因而該系列 液壓馬達可以作泵工況下運轉(zhuǎn)，當(dāng)進油口封閉后馬達可在 自由輪工況下高速動轉(zhuǎn)。

5、該系列液壓馬達壓力高，最高壓力可達31.5MPao重量輕、 體積小、功率高。

6、由于結(jié)構(gòu)簡單，設(shè)計合理，采用符合能力大的軸承，因而 工作可靠，壽命長、噪音低，傳動軸允許承受徑向力，

旋轉(zhuǎn)方向可逆。

Product overview

GM series hydraulic motor is a new type of product of our company, which is based on years practical experience. The design is improved in the foundation on the original technologies. GM hydraulic motor mainly has the following characteristics:

As the piston and the tilt cylinder have no side force ,the piston bottom is designed to be static pressure balance. The torsional force is transferring between the piston and the crankshaft through rolling bearing, so the friction loss during the transferring process of force is reduced. Therefore, GM series hydraulic motor has such features as: very high mechanical efficiency and comparatively high startup torque (mechanical efficiency of over 0.92 during startup).

The plane distributor (patented technology)is simple and reliable with perfect seal performance and almost no leakage. The plastic piston ring is used to seal between the piston and the tilt cylinder, so it has very high volumetric efficiency (can be as high as 0.98).

As the structure of this product has reduced friction loss and enhanced the seal performance, the product has perfect stability at low speed. It can stably run at 10r/min working condition and has big speed regulation range.

As the piston is jointed closely with bearing bushing without any clearance, this series of hydraulic motor can run at pump working condition.

This series of hydraulic motor has high pressure, (the highest pressure can reach 31.5 Mpa) light weight, small bulk and high specific power.

As this series hydraulic motor has simple structure, reasonable design and adopts bearing with big load ability, it can work reliably and has long life and low noise; the transmission shaft allows endure radial load and the rotational direction is reversible.

產(chǎn)品適用范圍

    由于GM系列液壓馬達具有上述一系列特點，故廣泛用于塑 料機械，輕工機械、冶金機械、礦山機械、起重運輸設(shè)備、 重型機械、石油煤礦機械、船舶甲板機械、機床、塑料、地 質(zhì)鉆探設(shè)備等各種機械的液壓傳動系統(tǒng)中。特別適用于提升 絞盤、卷筒機械、各種回轉(zhuǎn)機械驅(qū)動、履帶和輪子行走機構(gòu) 的驅(qū)動等傳動機械中。

Products application range

As GM series hydraulic motor has the above characteristics, it has wide application range. It can be applied in the hydraulic transmission systems of various types of machinery in plastic injection machine, light industry machine, engineering machine, metallurgical equipment, petroleum, coal mine, geological prospecting, railway, ship, environment protection, machine tool and agricultural machine industries.