The shaft end seal is located on the mixing shaft, between the mixing blade and the support bearing. We often hear users complain about the leakage of slurry from the shaft end seal of the concrete mixer, which seriously affects the project progress. In fact, the equipment is not selected correctly.

　　小編調(diào)查發(fā)現(xiàn)市場(chǎng)上很多廠家生產(chǎn)的混凝土攪拌機(jī)每生產(chǎn)10000m3左右混凝土就要大修一次，不僅維修成本大（一個(gè)軸端包括密封組件，造價(jià)約1000元及一個(gè)300元/只的軸承，雙臥軸有四個(gè)軸端，大修一次約需5200元），且又因迷宮式結(jié)構(gòu)的密封組件容易磨損經(jīng)常積滿水泥漿，使維修拆裝難度高，每次軸端大修少三、四天，嚴(yán)重影響生產(chǎn)的進(jìn)度和經(jīng)濟(jì)效益。

　　According to the investigation, many concrete mixers produced by many manufacturers in the market need to be overhauled every time they produce about 10000m3 of concrete, which not only has a high maintenance cost (one shaft end includes a sealing component, the cost is about 1000 yuan and a bearing is 300 yuan / piece; the double horizontal shaft has four shaft ends, and it costs about 5200 yuan to overhaul each time), but also because the sealing components of labyrinth structure are easy to wear, cement is often accumulated In order to make maintenance and disassembly difficult, each shaft end overhaul at least three or four days, seriously affecting the production schedule and economic benefits.
              

　　其實(shí)一直以來(lái)軸端密封都是國(guó)內(nèi)外混凝土攪拌機(jī)設(shè)計(jì)與制造的共性難題，為盡快提高混凝土攪拌機(jī)的技術(shù)含量，改善攪拌機(jī)軸端密封問(wèn)題，提高整機(jī)性能，增強(qiáng)市場(chǎng)競(jìng)爭(zhēng)力，經(jīng)過(guò)多方查找資料，著重研究了軸端密封的原理，提出了新的設(shè)計(jì)思路：

　　In fact, the shaft end seal has always been a common problem in the design and manufacture of concrete mixer at home and abroad. In order to improve the technical content of concrete mixer, improve the sealing problem of shaft end of mixer, improve the performance of the whole machine, and enhance the market competitiveness, the principle of shaft end seal is emphatically studied through searching data from various parties, and a new design idea is proposed

　　1.改變密封形式，采用浮動(dòng)密封加油脂密封的形式，前后形成四道機(jī)械密封；

　　1. Change the seal form, adopt floating seal and grease seal, form four mechanical seals before and after;

　　2.改變密封圈與內(nèi)浮封座的接觸面形式；

　　2. Change the contact surface form between the seal ring and the inner floating seal seat;

　　3.密封圈采用特殊材質(zhì)，提高密封效果，延長(zhǎng)密封件使用壽命；

　　3. The seal ring is made of special material to improve the sealing effect and prolong the service life of the seal;

　　4.加油系統(tǒng)采用四個(gè)立泵芯分別向四個(gè)軸頭供油，避免了使用分流閥的堵塞，減少維修和保養(yǎng)的工作量；

　　4. Four vertical pump cores are used in the refueling system to supply oil to the four shaft heads respectively, so as to avoid the blockage of diverter valve and reduce the workload of repair and maintenance;

　　5.軸端加裝潤(rùn)滑油檢測(cè)點(diǎn)，以檢測(cè)潤(rùn)滑油脂是否真正到達(dá)軸頭。

　　5. Install lubricating oil detection point at the shaft end to detect whether the lubricating grease really reaches the shaft head.

　　以上是關(guān)于混凝土攪拌機(jī)軸端密封的重要性，希望對(duì)大家有所幫助，如想了解更多內(nèi)容歡迎關(guān)注我們的網(wǎng)站。

　　The above is about the importance of concrete mixer shaft end seal, hope to help you, if you want to know more, please pay attention to our website.