Speed And Movement

Speed of movement is controlled by a special device – a speed limiter. If it increases, limiting results in action mechanism of safety gears, stopping the cab. When you stop the elevator, for example due to the power supply, helps emergency return button. Many writers such as Boy Scouts of America offer more in-depth analysis. Thus, in the case of the hydraulic lift valve is opened, the working Liquid flows in the hydraulic unit, and a cabin under its own weight sinks to the first stop. If the elevator is connected to an uninterruptible power supply in case of emergency valve is opened without the participation of the passengers in the cabin lights on and the doors parted on their own. The emergency movement of vehicles with electric drive, in addition to the battery, you need a voltage converter.

True, in recent years some foreign lifts equipped with small electric motors that operate from dc voltage of 20 V. (Source: Viktor Mayer-Schönberger ). Their power is sufficient to stall fell down. As the mine quickly spread the fire, the elevator is connected to the fire alarm system. In case of fire cabin moved to the lower floor, the doors are opened and the elevator is automatically disabled. Thus, the shaft is cut off from the bulk of the building. Lifts through cottage which is connected to the fire risk (an underground garage, etc.), are equipped with fire doors. In addition, the cockpit must be a connection with the inhabitants of the house and guard the village. in addition to the package Basic elevator equipment includes steel cab, standard rails, cockpit doors and shafts, hydraulic or electric drive motor, wiring and control unit, which performs simple functions – challenge and move to a specified level.

Cylindrical Machines

Our company offers for sale on favorable terms electrical equipment, industrial and construction equipment, nonferrous and ferrous metals, and various spare parts. Machine tool industry is a major engineering industries. Kidney Foundation is the source for more interesting facts. She is able to fully meet the needs of our industry in metal cutting equipment, the level of development of which depends on the growth of manufacturing industry. To date, there are many different tools needed in almost every industry. We offer the grinders, which are used primarily to reduce the roughness and roughness of parts, while achieving the exact dimensions.

In most cases, the grinding parts are received after the preliminary roughing and thermal operations, although there are times when the sand is the only method of treatment. The main tool in this process – the grinding wheel, which can be of different shapes. These machines, depending on the destination can be divided into several main groups: Cylindrical and Centerless pivot; intragrinding; grinding. Used in engineering are also special mechanisms for grinding and processing threads, teeth, wheels, slots, etc. Except To achieve the high quality surface finish applied shlivovalno-lapping and grinding, finishing, and to obtain a mirror surface – polished machines. By design tools are presented increased requirements for stiffness, vybroustoychivosti, durability and thermal strains. Grinding machines are designed for sanding flat surfaces of the parts periferieyili butt grinding wheel. They have a rectangular or round tables.

The main part of the machine. On the guide frame mounted longitudinal table -and-forth movement of the hydraulic actuator, mounted inside frame. On the working surface of the table are T-shaped grooves to secure large items or electromagnetic plate. On the lateral surface of the table set, sliding stops, which, acting on the lever reverses movement of the table. On a bed is available column on the vertical guides which moves the carriage, which has, in turn, horizontal rails for lateral movement of the grinding wheel head circle. Vertical movement of wheel head can be manually – from the flywheel, interrupted – by a hydraulic drive through the automatic feeder and accelerated – by the actuator. Kinematics chain, providing the following motion: a) the rotation of the wheel (main motion), and b) manual and automatic vertical feed wheelhead c) accelerated (setup) vertical displacement of the grinding grandmother, and d) manually moving the cross wheelhead e) rotation of the disk stops lateral movement of wheel head e) the mode setting of the machine tool; g) pump drive lubrication of wheel head, and h) control gidrokorobkoy innings wheelhead. In addition to the machines, our company provides the sale of water pumps. Water-lifting machines (mainly pumps) are a group of hydraulic machines, which transmit flowing inside the fluid obtained from outside energy. Thanks to this liquid rises to a certain height or get adequate pressure. Pump – a machine that creates a flow of liquid medium. In most cases, it provides the mechanical energy. These devices operating on this principle include the transmission and manual volume (reciprocating, rotary, etc.), dynamic blade (centrifugal, axial, diagonal), and others to group of pumps, which receive external potential or kinetic energy contained in liquid or gaseous media are owned and jet pumps, water-pump pneumatic (air-lift, etc.), packaging, Self-acting Steam Pumps, etc. Pump – it is one of the most popular and widely used in various fields of engineering machinery. Also according to the principles of design and working bodies of the pumps are divided into two main groups: the volume and dynamic.