Red light mechanical vertical jack manufacturers and everyone briefly introduce how the jacks are lifted. So first of all, the jack is a lifting device that is relatively small in lifting height and is the easiest and most convenient lifting device.
The use and introduction of the jack:
Jacks are mainly used in factories, mines, transportation and other departments for vehicle repair and other lifting and support work. The structure is light, sturdy, flexible and reliable, and can be carried and operated by one person. The jack is a light lifting device that uses a rigid lifting member as a working device to lift a heavy object in a small stroke by a top bracket or a bottom bracket. Jacks are divided into three categories according to their working principles:
The first category: screw jack: a jack that is driven by a screw or a screw as a rigid jacking member.
The second category: rack jack: the jack used as a rigid jacking member.
The third category: hydraulic jack: the use of a plunger or hydraulic cylinder as a rigid jacking jack.
We understand the purpose and basic knowledge of the jack. Let's take a look at how the jack is lifted, that is, the working principle of the jack:
There are several types of jacks, such as mechanical jacks and hydraulic jacks. It is obvious that the principles are different. In principle, the most basic principle based on hydraulic transmission is the Pascal principle. That is to say, the pressures around the liquid are consistent. Thus, in a balanced system, the pressure exerted on the relatively small piston is relatively small, and the pressure exerted on the large piston is relatively large, thus keeping the liquid stationary. Therefore, by the transfer of the liquid, different pressures at different ends can be obtained, so that a transformation can be achieved. The hydraulic jacks we often use are using this principle to achieve force transmission. The mechanical principle of the screw jack is to reciprocate the handle, the claw is to push the ratchet gap to rotate, the small bevel gear drives the large bevel gear, and the lifting screw rotates, so that the lifting sleeve can be lifted or lowered to achieve the lifting force. . But not as simple as a hydraulic jack. Different jacks use different functions, which have advantages and disadvantages.