CN205419653U - Stereo garage elevating system based on electro -hydraulic proportional technique - Google Patents

Abstract

The utility model discloses a stereo garage elevating system based on electro -hydraulic proportional technique, its characterized in that: including hydraulic system and elevating system, hydraulic system includes the pneumatic cylinder, and the pneumatic cylinder bottom is connected with an automatically controlled check valve, and the other end of automatically controlled check valve divides two the tunnel, is connected with the oil tank through the proportion choke valve all the way, and another sweetgum fruit is crossed the check valve and is connected with the two -position three way valve, the two -position three way valve other end divides the three routes, and the constant delivery pump is passed through to the first via, the filter is connected with the oil tank, and the second sweetgum fruit is crossed the overflow valve and is connected with the oil tank, and the third sweetgum fruit is crossed your two -port valve and is connected with the oil tank, and three routes reposition of redundant personnel department is connected with a manometer, still include the thermometer, level gauge, the air cleaner that are connected with the oil tank, elevating system adopts an assembly pulley bearing wire rope mechanism. The utility model has the advantages of control accuracy is high, and the drive is simple and convenient, antipollution ability reinforce, and loss of pressure is little, can satisfy higher control accuracy's requirement with lower cost.

Description

A three-dimensional garage lifting mechanism based on electro-hydraulic proportional technology

technical field

The utility model relates to the technical field of mechanical engineering, in particular to a three-dimensional garage lifting mechanism based on electro-hydraulic proportional technology.

Background technique

With the development of our country's economy, the problem of difficult parking is prominent, and the three-dimensional garage is an effective way to solve this problem. Among them, the vertical lifting three-dimensional garage has developed rapidly due to its high land utilization rate. Its lifting mechanism is the core moving part of the garage, and its performance directly affects the overall efficiency and cost of the garage. The current lifting mechanism technology originates from the elevator industry, and AC asynchronous motors are generally used as driving components. Although this driving method has the advantages of mature technology, stable performance and reliable control, it also has the advantages of small power-to-weight ratio and weak overload resistance. , The disadvantage of large start-stop impact. And another driving method commonly used in industry——hydraulic drive, because of its mature technology, reliable control, large power-to-weight ratio, strong anti-overload ability, stable operation, and compact structure, it is suitable for high-performance lifting mechanisms. drive. Since the garage lifting mechanism requires high positioning accuracy, a hydraulic drive mechanism based on electro-hydraulic proportional technology can be used.

Utility model content

The purpose of the utility model is to provide a three-dimensional garage lifting mechanism based on the electro-hydraulic proportional technology for the deficiencies of the current prior art.

The technical solution adopted by the utility model is: a three-dimensional garage lifting mechanism based on electro-hydraulic proportional technology, which is characterized in that it includes a hydraulic system and a lifting mechanism; the hydraulic system includes a hydraulic cylinder, and the bottom end of the hydraulic cylinder is connected to an electric The other end of the electric control check valve is divided into two circuits, one is connected to the oil tank through the proportional throttle valve, and the other is connected to the two-position three-way valve through the one-way valve; the other end of the two-position three-way valve is divided into three The first path is connected to the fuel tank through a quantitative pump and filter, the second path is connected to the fuel tank through a relief valve, the third path is connected to the fuel tank through a two-position two-way valve, and a pressure gauge is connected to the three-way diversion point; It includes a thermometer connected to the fuel tank, a liquid level gauge, and an air filter; the lifting mechanism adopts a pulley block-load-bearing wire rope mechanism.

The beneficial effects of the utility model are: the utility model has the advantages of high control precision, simple driving, strong anti-pollution ability, small pressure loss, etc., and can meet the requirements of higher control precision at a lower cost.

Description of drawings

Fig. 1 is a schematic structural view of a three-dimensional garage lifting mechanism based on electro-hydraulic proportional technology of the present invention.

Fig. 2 is a schematic diagram of a pulley block-load-bearing wire rope mechanism.

Label names in the figure: (1) oil tank, (2) two-position two-way valve, (3) pressure gauge, (4) overflow valve, (5) filter, (6) quantitative pump, (7) two-position three-way valve Through valve, (8) one-way valve, (9) electric control one-way valve, (10) hydraulic cylinder, (11) proportional throttle valve, (12) thermometer, (13) liquid level gauge, (14) air filter device.

detailed description

The utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments.

A three-dimensional garage lifting mechanism based on electro-hydraulic proportional technology, as shown in Figure 1, is characterized in that: it includes a hydraulic system and a lifting mechanism; the hydraulic system includes a hydraulic cylinder (10), and the bottom end of the hydraulic cylinder (10) is connected with An electronically controlled check valve (9), the other end of the electronically controlled check valve (9) is divided into two circuits, one is connected to the oil tank (1) through a proportional throttle valve (11), and the other is connected to the fuel tank (1) through a one-way valve (8) It is connected with the two-position three-way valve (7); the other end of the two-position three-way valve (7) is divided into three routes, the first route is connected with the fuel tank (1) through the quantitative pump (6) and the filter (5), the second route It is connected to the oil tank (1) through the overflow valve (4), the third line is connected to the oil tank (1) through the two-position two-way valve (2), and a pressure gauge (3) is connected to the three-way diversion; it also includes the connection with the oil tank (1) connected thermometer (12), liquid level gauge (13), air filter (14); as shown in Figure 2, described lifting mechanism adopts pulley block-load-bearing wire rope mechanism. The utility model has the advantages of high control precision, simple driving, strong anti-pollution ability, small pressure loss, etc., and can meet the requirements of higher control precision at a lower cost.

The utility model adopts a variable structure throttling speed regulation system. In the ascending section, a bypass throttling speed regulating circuit is used to improve system efficiency and reduce capacity loss; Ensure a smooth descent and reduce the impulse to park. The specific hydraulic schematic diagram is shown in Figure 1: the hydraulic system is driven by a quantitative pump (6), the overflow valve (4) is used as a safety valve to set the maximum pressure of the system, and the two-position two-way valve (2) is used for system unloading; When the cylinder (10) drives the vehicle-carrying plate to rise, the two-position three-way valve (7) is energized and located in the right position, and the hydraulic oil enters the hydraulic cylinder (10) through the check valve (8) and the electronic control check valve (9). Push the piston upward, and the proportional throttle valve (11) forms a bypass throttling speed regulation circuit; when the parking space is kept at a high place, the two-position three-way valve (7) loses power and is located in the left position, and the hydraulic oil is electronically controlled one-way The valve (9) is sealed in the oil chamber, the two-position two-way valve (2) is energized, and the quantitative pump (6) is unloaded; when the hydraulic cylinder (10) drives the vehicle plate down, the electronically controlled one-way valve (9) When the power is turned on, the check valve (8) is opened, and the hydraulic oil flows back to the oil tank (1) through the electronically controlled check valve (9) and the proportional throttle valve (11), forming an oil return throttling speed regulating circuit.

Since the lifting object of the garage lifting mechanism is a car, a larger vehicle-carrying platform (about 6mX2.8m) needs to be used. Such a large platform needs to solve technical problems such as uneven force, platform deformation, and unstable lifting. Therefore, this The utility model adopts a multi-point hoisting method to solve this problem. The specific method is shown in Figure 2: the pulley block uses four pulleys in parallel, drives four wire ropes at the same time, and then changes the direction and position of each wire rope through the auxiliary fixed pulley, so that the wire ropes lift the four points of the vehicle-carrying plate separately, so as to ensure The loading plate is evenly stressed, and the lifting is stable.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any simple modifications and changes made to the above embodiments according to the technical essence of the present utility model still belong to the protection scope of the present utility model. Inside.

Claims (1)

1. a stereo garage elevator structure based on electrohydraulic proportion technology, it is characterised in that: include hydraulic system and elevating mechanism；Described hydraulic system includes hydraulic cylinder (10), hydraulic cylinder (10) bottom connects an electric control one-way valve (9), the other end of electric control one-way valve (9) divides two-way, proportional throttle valve (11) of leading up to is connected with fuel tank (1), and check valve (8) of separately leading up to is connected with two position three-way valve (7)；Two position three-way valve (7) other end divides three tunnels, the first via is connected with fuel tank (1) by dosing pump (6), filter (5), second tunnel is connected with fuel tank (1) by overflow valve (4), 3rd tunnel is connected with fuel tank (1) by two position two-way valve (2), and at three tunnel shuntings, connection has a Pressure gauge (3)；The thermometer (12) that also includes being connected with fuel tank (1), liquidometer (13), air filter (14)；Described elevating mechanism uses assembly pulley one track cable mechanism.