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叉车起升装置的安全要注意什么?

来源:/ 日期:2021-08-04 发布人:hangong

现在绝大多数叉车使用挂钩型货叉,即便于横向移动又便于更换,简便的同时带来的隐患是易脱落。因此对于货叉的横向定位提出了严格的要求,并要求在装好货叉后要具有防脱落措施。这项要求部分企业没有做到,虽然只是加一个螺栓孔和螺栓,如果在设计工艺,制造中缺少这一简单的工序,那可能造成的后果是严重的。

At present, most forklifts use hook fork, which is easy to replace even when moving laterally. At the same time, the hidden danger is easy to fall off. Therefore, strict requirements are put forward for the transverse positioning of the fork, and anti falling measures are required after loading the fork. This requirement is not met by some enterprises. Although they only add a bolt hole and bolt, if this simple process is missing in the design process and manufacturing, the possible consequences will be serious.
因此安全性能检验,每一项要求都是至关重要的。叉车工作装置是叉车进行装卸作业的工作部分,它承受全部载重,并完成货物的叉取、提升、降落及对吗等装卸作业,是叉车重要组成部分之一。内门架位于外门架的内侧,上横梁上装有起升链轮。在内门架外壁装有纵向和侧向滚轮,用以在外门架内滚动,来减小运动阻力。
Therefore, every requirement of safety performance inspection is very important. Forklift working device is the working part of forklift for loading and unloading. It bears all the load and completes the forking, lifting, landing and right loading and unloading of goods. It is one of the important components of forklift. The inner portal frame is located on the inner side of the outer portal frame, and the upper cross beam is equipped with a lifting sprocket. The outer wall of the inner gantry is equipped with longitudinal and lateral rollers to roll in the outer gantry to reduce the motion resistance.
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起重链条绕过内门架上的起升链轮,一端固定在外门架的横梁上,另一端连接到叉车上。当起升油缸的柱塞杆升起时,内门架和叉架便可将货物提起。叉车门架基本型式为两级门架,内外门架排列形式分重叠式、并列式和综合式,外门架立柱一般用槽形,可用型钢压制和焊接而成。外门架起着内门架运动导向作用,它的两个平行立柱由上横梁、中横梁和底板牢固的焊接在一起。
The lifting chain bypasses the lifting sprocket on the inner gantry, one end is fixed on the cross beam of the outer gantry, and the other end is connected to the forklift. When the plunger rod of the lifting cylinder rises, the inner gantry and fork frame can lift the goods. The basic type of forklift gantry is two-stage gantry. The arrangement of internal and external gantry is divided into overlapping type, parallel type and comprehensive type. The column of external gantry is generally grooved and can be pressed and welded with section steel. The outer portal frame plays a guiding role in the movement of the inner portal frame. Its two parallel columns are firmly welded together by the upper cross beam, the middle cross beam and the bottom plate.
有些企业叉车起升装置的上止点由起升油缸控制,从安全角度来讲是比较危险的,从设计角度也是非常不合理的。叉车的使用,尤其是内燃叉车,一般使用环境比较恶劣,使用频率较高。如果没有机械定位,仅靠起升缸头的限位是不可靠的。因此在设计和生产中要严格把好这道关,加装机械限位块,防止货架冲出门架槽钢,造成严重后果。
In some enterprises, the top dead center of forklift lifting device is controlled by lifting cylinder, which is dangerous from the perspective of safety and unreasonable from the perspective of design. The use of forklifts, especially internal combustion forklifts, is generally used in a harsh environment and with high frequency. If there is no mechanical positioning, only the limit of lifting cylinder head is unreliable. Therefore, this pass should be strictly controlled in the design and production, and mechanical limit blocks should be installed to prevent the shelf from rushing out of the gantry channel steel, resulting in serious consequences.
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