CN2090441U

CN2090441U - Gas motor with single-magnetic vanes

Info

Publication number: CN2090441U
Application number: CN 90218171
Authority: CN
Inventors: 杨逢瑜
Original assignee: LANZHOU MAGNETIC DEVICE GROUP CO
Current assignee: LANZHOU MAGNETIC DEVICE GROUP CO
Priority date: 1990-08-15
Filing date: 1990-08-15
Publication date: 1991-12-11

Abstract

The utility model relates to a gas motor with vanes. The utility model is mainly characterized in that a closed window is arranged at the point with sufficient wearing capacity on a vane at the end where vanes contact a stator, and the window is fixedly connected with a magnetic conductor through adhesive at one end close to the stator; the magnetic conductor is bonded with a permanent magnet of which the magnetic lines absorbs the stator through the vanes so that the vanes can be always attached in a cavity of the stator. The utility model has the advantages of simple structure, easy maintenance, easy fabrication and suitability for middle-sized and small-sized machine factories to produce.

Description

Gas motor with single-magnetic vanes

The utility model belongs to the pneumatic motor class.

Vane air motor is that use at present is the most extensive topmost a kind of in the pneumatic gearing, the present gas motor that uses, the blade of motor rises from stator slot, except leaning on the centrifugal force of blade rotation, mainly adopted following dual mode: 1. utilize the elastic force of the spiral compression spring that is contained in the blade bottom, blade is released; 2. the pressurized air that utilizes the blade bottom to feed is released blade.The problem that first kind of mode exists be since the operating rate of gas motor at 3000 rev/mins to 2500 rev/mins, under long-term periodic loading, spring often destroys because of tired.The problem that the second way exists is blade bottom compressed air pressure when too high, has quickened the wearing and tearing of blade and stator inner surface; Pressure is low, and blade easily breaks away from stator inner surface during starting, and it is logical that the high and low pressure air is scurried, and causes motor stall, because the pressure of bubbling air is not high, thereby has also limited the power and the rotating speed of motor.And the processing of leading to the air flow channel of blade bottom has certain difficulty.

The purpose of this utility model provides a kind of new gas motor, and the blade of this gas motor rises from stator slot, except leaning on the centrifugal force of blade rotation, mainly by the suction of the permanent magnet on the blade to stator.

Description of drawings:

Fig. 1: the schematic diagram of single magnetic blade gas motor.

Fig. 2: the main sectional view of single magnetic blade gas motor.

Fig. 3: the M-M sectional view of single magnetic blade gas motor.

Fig. 4: single magnetic blade gas motor blade master sectional view.

Fig. 5: the sectional view of single magnetic blade gas motor blade.

Accompanying drawings structure of the present utility model;

Working principle of the present utility model (Fig. 1), with the working principle of common gas motor is identical, when the A mouth of pressurized air through stator (1) enters in the active chamber, directive blade (2), impel blade (2) to drive rotor (3) revolution, waste gas is discharged from stator relief opening C, residual gas in the cylinder is then discharged by relief opening B, institute's difference, be that blade (2) contacts on the blade of this end with stator (1), leave enough wear extent parts, have the window of sealing, be fixed with magnet case (5) near an end of rotor with binder, on magnet case (5), be bonded with permanent magnet (4) at window, the magnetic line of force of permanent magnet (4) produces suction by blade to stator (1), and blade is close in the stator cavity all the time.

Embodiment of the present utility model, the main sectional view (Fig. 2) of single magnetic blade gas motor and the M-M sectional view (Fig. 3) of single magnetic blade gas motor.

On main shaft, be fixed with rotor (20), in the groove of rotor (20), be inserted with blade (15), and it is inserted in the stator (19), with straight pin (23) preceding sealing cover (21) and back sealing cover (8) are located with stator, form active chamber, bearing (22) is installed at two ends respectively, the body (18) of packing into, cover cover (9), with plug screw (10) and bolt (12), packing ring (11,13) whole gas motor is installed on one, A, B, C is respectively suction port and air outlet, contacting on the blade of this end with stator (19), leaves enough wear extent parts, have the window of sealing, in window, an end of close rotor is fixed with magnet case (17) with binder, is bonded with permanent magnet (16) on magnet case, the magnetic line of force of permanent magnet (16) produces suction by blade to stator (19), and blade is close in the stator cavity all the time.

At blade uplifting window mouth (Fig. 4, Fig. 5), be that the length of blade is divided equally several sections, on each section, have window, in order to inlay permanent magnet.The top of window upper end and blade distance be generally 3～8MM.

The permanent magnet that the utility model adopts is resistant to elevated temperatures neodymium-iron-boron (Nd, Fe, B), and permanent magnet is a cuboid, and permanent magnet is pressed radial magnetizing.

Blade of the present utility model adopts nonmagnetic substance.

The utility model, simple in structure, be easy to safeguard, easy to manufacture, be applicable to that middle-size and small-size machinery plant produces.

Claims

1, a kind of gas motor, be on main shaft, to be fixed with rotor, in the groove of rotor, be inserted with blade, and it is inserted in the stator, with straight pin with preceding sealing cover and back sealing cover and stator location, composition active chamber, bearing is installed at two ends respectively, the body of packing into covers cover, with plug screw and bolt, packing ring is installed on one with whole gas motor, A is a suction port, B, C is respectively the air outlet, it is characterized in that on the blade of this end that contacts with stator, leaves enough wear extent parts, have the window of sealing, end near rotor in window is fixed with magnet case with binder, is bonded with permanent magnet on magnet case, and blade adopts nonmagnetic substance.

2, gas motor as claimed in claim 1 is characterized in that at blade uplifting window mouth be that the length of blade is divided equally several sections, has window on each section, and in order to inlay permanent magnet, the window upper end is generally 3～8MM with the distance on the top of blade.

3, gas motor as claimed in claim 1, the described permanent magnet of its feature are resistant to elevated temperatures neodymium-iron-boron (Nd, Fe, B), and permanent magnet is a cuboid, and permanent magnet is pressed radial magnetizing.