CN201865709U

CN201865709U - Blade type pneumatic motor

Info

Publication number: CN201865709U
Application number: CN2010206359829U
Authority: CN
Inventors: 赵庆义
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-01
Filing date: 2010-12-01
Publication date: 2011-06-15
Anticipated expiration: 2020-12-01

Abstract

The utility model relates to a blade type pneumatic motor, which comprises a front end cover (1), a back end cover (2), a rotating shaft (3), a stator (4) and a rotor (5), wherein a groove is formed on the rotor (5), a blade (6) is arranged on the rotor (5), the inner circumferential surface of an accommodating cavity of the stator (4) is formed by connecting two concentric circular arc surfaces with different radii through two smooth transition surfaces, a gas inlet (7) and an exhaust opening (8) of the stator (4) are respectively arranged on two transition surfaces, and the rotating shaft (3) and the rotor (4) are coaxially fixed with the two concentric circular arc surfaces. The blade type pneumatic motor has the advantages of little gas consumption, large output torque, low rotating speed, high output power, high efficiency, low noise and the like, and the requirements of energy saving and environment protection can be met.

Description

Pneumatic vane motor

Technical field

The utility model relates to motor, particularly to having the improvement of middle pneumatic vane motor now.

Background technique

Existing pneumatic vane motor substantially all is a slide plate eccentric structure, utilize pressurized air act on before and after pressure on two blades does not wait and produces difference in torque promotion rotor and rotate.There are many shortcomings such as air consumption is big, moment of torsion is little, rotating speed is high, output power is little, efficient is low, noise is big in it, energy loss is bigger, easily forms noise pollution, and most purpose that just can reach the output high pulling torque by speed change, therefore, it can not satisfy energy conservation and environment protection.

Summary of the invention

Technical problem to be solved in the utility model is: a kind of energy-saving and environmental protection and pneumatic vane motor efficiently are provided.

Technical solution of the present utility model is: it comprises front cover, rear end cover, running shaft, stator and rotor, fluting and be provided with blade on the rotor, its cavity volume inner peripheral surface of described stator is to be formed by connecting by two rounding off faces by two waney concentric circle arc plane, the suction port of stator and relief opening are opened respectively on two transitional surfaces, and running shaft and rotor and two concentric circle arc plane coaxial lines are fixed.

Technique effect of the present utility model is: advantages such as it has, and air consumption is little, output torque is big, rotating speed is lower, output power is big, efficient is high and noise is little, can satisfy the requirement of energy-saving and environmental protection.

Description of drawings

Fig. 1 is a stereochemical structure assembling schematic representation of the present utility model;

Fig. 2 is the structural drawing of first stator of the present utility model;

Fig. 3 is the structural drawing of second stator of the present utility model;

Fig. 4 is the structural drawing of the 3rd stator of the present utility model;

Fig. 5 is the structural drawing of rear end cover of the present utility model.

Embodiment

Extremely shown in Figure 5 as Fig. 1, the pneumatic vane motor of present embodiment comprises front cover 1, rear end cover 2, running shaft 3, stator 4 and rotor 5, fluting and be provided with blade 6 on the rotor 5, running shaft 3 can be connected with end cap by establish bearing on two end cap, running shaft 3 its output terminals stretch out in a side end cap, described stator 4 its cavity volume inner peripheral surfaces are to be formed by connecting by two rounding off faces by two waney concentric circle arc plane, the suction port 7 of stator 4 and relief opening 8 are opened respectively on two transitional surfaces, and running shaft 3 and rotor 4 and two concentric circle arc plane coaxial lines are fixed.The length of two concentric circle arc plane can be adjusted, even can value be zero, and promptly available involute surface replaces two arc surfaces to reach in the transition junction surface of stator exhaust ports.The transitional surface at stator 4 suction ports 7 places can be shorter and precipitous than the transitional surface at relief opening 8 places, because the existence of a precipitous transitional surface is arranged, the rotor rotation direction is irreversible, and two transitional surfaces also can be symplex structures, and at this moment the rotor rotation direction can realize reversing.

Described stator 4 is at least two covers polyphone mutually with rotor 5,4 of stators are provided with dividing plate 9 separately, dividing plate 9 is for being provided with the circular plate body of axis hole, rear end cover 2 outsides are provided with circular air distribution cavity 10 and are stamped the capping 18 of establishing intake interface 11, on the sidewall of air distribution cavity 10 in axial alternate (certain distance separately in the axial direction, following not on the same group air distribution hole 15 is not interfered with each other with distribution air outlet 12) be provided with the distribution air outlet 12 of quantity such as stator 4 and be connected with the suction port 7 of each stator 4 by gas distribution channels 13 respectively, be provided with the distribution spool 14 cylindraceous of an end opening in the air distribution cavity 10, distribution spool 14 its closed ends inwardly and have an axis hole, distribution spool 14 its outer circumferential faces cooperate with the inner peripheral surface of air distribution cavity 10, have distribution air outlet 12 cooperate and the group number air distribution holes 15 corresponding on distribution spool 14 its barrels with distribution air outlet 12 quantity with air distribution cavity 10, every assembly pore 15 is uniform and quantity is consistent with blade 6 quantity of each rotor 5 on circumference, air distribution hole 15 is along circumferential long shape hole, its length can determine according to the concrete dispensing corner of distribution in stator cavity, and each rotor 5 and distribution spool 14 are fixed on the same running shaft 3 and can in order pressurized air be assigned to a blade 6 actings that promote different rotor 5 in the cavity volume of each stator 4 in turn by distribution spool 14.Dividing plate 9 between stator 4 reaches is equipped with positioning hole 16 by the locating stud location, and the circumferential rotation between preventing by the inlay card structural orientation, prevents radial-play simultaneously.The angle that staggers mutually between the blade 6 of different stator 4 internal rotors 5 can position by the angular interval that is splined on stator 4 or the running shaft 3.

Gas distribution channels 13 can directly open stator 4 and between dividing plate 9 on, also can be communicated with by the mode of external pipeline.Stator 4 can seal by seal ring with dividing plate 9 and each junction surface place.Pressurized air enters air distribution cavity 10 by intake interface 11, is assigned in order in each stator cavity respectively through each assembly pore 15.The mode as above-mentioned gas distribution channels 13 can be adopted in exhaust passage 16, gathers to rear end cover 2 places and by exhaust port 17 pressurized air is discharged, also can be directly by directly discharging on each stator 4.

Below be example with three stator cavity numbers, by 1 of front cover, with stator 4 and dividing plate 9 called after first stator (as Fig. 2), first dividing plate, second stator (as Fig. 3), second partition and the 3rd stator (as Fig. 4) successively, the top edge that positioning hole 16 leaves respectively at stator 4 and dividing plate 9 leans on position intermediate, its suction port 7 of each stator and relief opening 8 are opened respectively in the chamber of positioning hole 16 both sides thereon on the transitional surface, and exhaust port 17 is located at rear end cover 2(such as Fig. 5) on.The gas distribution channels 13 of first stator and exhaust passage 16 are drawn in the both sides of positioning hole 16 by the first stator ear end face respectively, are communicated with a distribution air outlet 12 and exhaust port 17 on the rear end cover 2 through first dividing plate, second stator, second partition and the 3rd stator successively; The gas distribution channels 13 of second stator and exhaust passage 16 are drawn by the second stator ear end face respectively, successively through second partition, the 3rd stator, be communicated with another distribution air outlet 12 and exhaust port 17 on the rear end cover 2; The gas distribution channels 13 of the 3rd stator and exhaust passage 16 are drawn by the 3rd stator ear end face respectively, and another distribution air outlet 12 and exhaust port 17 direct and on the rear end cover 2 are communicated with.During assembling, can by bolt assembly be fixed by two end cap.

Add man-hour, can adopt the geomery of stator 4 keyway position consistency, and the keyway on the running shaft 3 is reversed the several angle fluting successively, also can be conversely for it.

This product air consumption is little, output torque is big and noise is little, and is more stable than other like product running when multi-joint, is difficult for producing vibration.

Claims

1. pneumatic vane motor, comprise front cover (1), rear end cover (2), running shaft (3), stator (4) and rotor (5), slot on the rotor (5) and be provided with blade (6), it is characterized in that, its cavity volume inner peripheral surface of described stator (4) is to be formed by connecting by two rounding off faces by two waney concentric circle arc plane, the suction port (7) of stator (4) and relief opening (8) are opened respectively on two transitional surfaces, and running shaft (3) and rotor (4) are fixed with two concentric circle arc plane coaxial lines.

2. pneumatic vane motor as claimed in claim 1 is characterized in that, the transitional surface that the transitional surface that described stator (4) suction port (7) is located is located than relief opening (8) is precipitous.

3. pneumatic vane motor as claimed in claim 1, it is characterized in that, described stator (4) is at least two covers polyphone mutually with rotor (5), be provided with dividing plate (9) between stator (4) separately, rear end cover (2) outside is provided with circular air distribution cavity (10) and is stamped the capping (18) of establishing intake interface (11), also be connected with the suction port (7) of each stator (4) by gas distribution channels (13) respectively in axial alternate being provided with on the sidewall of air distribution cavity (10) with the distribution air outlet (12) of stator quantity such as (4), be provided with the distribution spool cylindraceous (14) of an end opening in the air distribution cavity (10), its closed end of distribution spool (14) inwardly and have an axis hole, have on its barrel of distribution spool (14) cooperate with the distribution air outlet (12) of air distribution cavity (10) and the group number air distribution hole (15) corresponding with distribution air outlet (12) quantity, every assembly pore (15) is uniform and quantity is consistent with blade (6) quantity of each rotor (5) on circumference, and each rotor (5) and distribution spool (14) are fixed on that same running shaft (3) is gone up and can in order pressurized air be assigned to a blade (6) that promotes different rotor (5) in the cavity volume of each stator (4) in turn by distribution spool (14) and do work.