CN100363633C

CN100363633C - Rotary piston type double-shaft pneumatic motor

Info

Publication number: CN100363633C
Application number: CNB2005100001749A
Authority: CN
Inventors: 李小磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-01-06
Filing date: 2005-01-06
Publication date: 2008-01-23
Anticipated expiration: 2025-01-06
Also published as: CN1800656A

Abstract

The present invention relates to a rotary piston type double-shaft pneumatic motor which belongs to the field of motors. The present invention aims to solve the problems of the current rotary piston type pneumatic motor that double-shaft output rotation can not be carried out, and the number of rotation and the rotary speed can not displayed. A tubular piston of the pneumatic motor is fixed on an eccentric shaft of a crank shaft through a bearing; when the piston makes movements around the eccentric shaft of the crank shaft and swings and rolls along a cavity of an air cylinder simultaneously, the piston can drive the crank shaft to rotate; in such a way, the rotary piston type double-shaft pneumatic motor is formed. The pneumatic motor has two output shafts which can carry out the output rotation to two equipment simultaneously, and when one shaft outputs rotation simultaneously, the other shaft is matched with a display for the number of rotation and the rotary speed to display the number of rotation and the rotary speed of the motor; after the two parameters are added, the pneumatic motor can carry out rated rotation and realize step-less speed regulation, and the application range of the pneumatic is largely enlarged.

Description

Rotary piston type double-shaft pneumatic motor

Technical field:

The invention belongs to field of motors.

Technical background:

At present, the rotary-piston type single shaft gas motor that China has occurred, every gas motor can only provide a relevant device and rotate output, and can't show parameters such as revolution, rotating speed, thereby its application is very limited.

Summary of the invention:

The purpose of this invention is to provide the moving motor of a kind of rotary piston type double-shaft pneumatic, it not only can provide rotation output to two relevant devices by a motor simultaneously, and when a motor one end rotatingshaft rotates an equipment output, the rotatingshaft of the other end can be mixed revolution and the rotating speed that revolution counter and rotating speed display device show the gas motor, can make the specified rotation of gas motor like this and realize stepless speed regulation, increase its application area greatly.

The technical solution used in the present invention is: have with a tape guide key opening and in the opening both sides that inlet and outlet mouth and another are brought into, 2 cylinder barrels of relief opening are separately fixed at 2 band inner cores and the center has on the end plate of axis hole, thereby form half cylinder bodies of 2 band inner cores.

Be fixed in cylinder center's wall axis hole with the eccentric shaft of bearing bent axle, form the circle tube piston of a band bent axle, piston can rotate around eccentric shaft and bent axle, have the guiding groove that can insert feather key on the center wall of cylinder piston, symmetry has the trapping mouth that can insert the trapping piece on the piston barrel of guiding groove both sides, and trapping mouth center line and guiding groove center line are on same center line.

The two ends of bent axle are passed from the inner core of two and half cylinder bodies and end plate axis hole respectively, and the inner core of half cylinder body inserted in the cylinder of bent axle piston from two ends respectively, in the process of inserting, two trapping pieces are put into two trapping mouths on the piston cylinder respectively, and make trapping piece correspondence position between cylinder wall inlet and outlet mouth, make the inlet and outlet mouth be distributed in trapping piece both sides, feather key is put into the guiding groove of piston cylinder intermediate inner wall, feather key and trapping piece can be used bolt after then two and half cylinder bodies being closed up movingly.

Wherein, cylinder barrel inner chamber radius equals piston cylinder radius and the bent tenon sum of bent axle, the piston cavity radius equals cylinder inner core radius and crankshaft crank sum, the trapping tile height is the poor of cylinder barrel inner chamber radius and cylinder inner core radius, the trapping mouth is with long on length and the piston, and width is less than piston trapping mouth width.

So just formed rotary piston type double-shaft pneumatic motor, after air-flow entered motor from suction port, the piston on the bent axle just can drive bent axle and rotate along the to-and-fro motion of trapping piece with when crankshaft eccentric shaft moves.Bent axle can be a solid crankshaft, also can be tapped hollow crankshaft.

Description of drawings:

Fig. 1 is a sectional structure schematic representation of the present invention.Among Fig. 1: 1-band inner core lower end sheet, second cylinder barrel of 2-cylinder, second cylinder trapping piece of 3-, second cylinder inner core of 4-, 5-keyway that leads, the 6-crank, the 7-bent axle, 8-eccentric shaft, 9-cylinder piston, the 10-eccentric shaft bearing, 11-piston cylinder center wall, 12-feather key, 1 '-band inner core upper head plate, first cylinder barrel of 2 '-cylinder, 3 '-first cylinder trapping piece, 4 '-first cylinder inner core.

Fig. 2 is a plan structure schematic representation of the present invention, among Fig. 2: tube end-plate in the 1-band, 2-cylinder barrel, 3-trapping piece, 4-inner core, the 5-keyway that leads, 6-crank, 7-bent axle, 8-eccentric shaft, 9-cylinder piston, 10-eccentric shaft bearing, 11-piston cylinder center wall, 12-feather key

Embodiment:

As depicted in figs. 1 and 2, the lower end sheet 1 of band inner core is good with second cylinder barrel 2 usefulness bolt of cylinder, second cylinder body of formation cylinder, the upper head plate 1 ' of inner core is good with bolt with first cylinder barrel 2 ' of cylinder with being with, and forms first cylinder body of cylinder.

Second cylinder body has guiding keyway 5, in keyway 5 both sides a suction port 13 and relief opening 14 is arranged respectively, and first cylinder body has the inlet and outlet mouth symmetrical with second cylinder body, at the end plate 1 of upper and lower two and half cylinder bodies and 1 ' center axis hole is arranged respectively.

The eccentric shaft 8 usefulness eccentric shaft bearings 10 of bent axle 7 are fixed in the center hole of center wall 11 of cylinder piston 9, form the circle tube piston of a band bent axle.

Cylinder piston 9 can rotate around eccentric shaft 8 and bent axle 7, the edge of the center wall of cylinder piston 9 has the cylindrical guiding groove that can insert feather key, symmetry has the trapping mouth that can insert trapping piece 3 and 3 ' on the piston barrel of guiding groove both sides, and trapping mouth center line and cylindrical guiding groove center line are on same center line.

With the two ends of bent axle 7 respectively from last, pass in following 2 the half cylinder body end plate axis holes, and the inner core 4 and 4 ' of 2 half cylinder bodies inserted respectively in the cylinder of bent axle cylinder piston 9 from two ends, in the process of inserting, trapping piece 3 and 3 ' is put into two trapping mouths of piston cylinder respectively, make, advancing of second cylinder body, relief opening is distributed in trapping piece both sides, feather key 12 is put into the guiding groove of piston cylinder center wall 11, feather key 12 can be movingly with trapping piece 3 and 3 ', then two and half cylinder bodies are closed up, feather key 12 should be closed up in the guiding groove 5 of cylinder body when closing up, close up the back and will go up with bolt, following 2 half cylinder bodies are fixed.

Wherein, cylinder barrel 2 inner chamber radiuses equal cylinder piston 9 radiuses and bent axle footstalk 6 sums, piston 9 inner chamber radiuses equal cylinder inner core 4 radiuses and crankshaft crank 6 sums, the trapping tile height is the poor of cylinder barrel 2 inner chamber radiuses and cylinder inner core 4 radiuses, the trapping mouth is with long on length and the piston 9, and width is less than piston 9 trapping mouth width.

So just formed the rotary piston type double-shaft pneumatic motor shown in Figure 2 as Fig. 1, after air-flow entered motor from suction port, the piston 9 on the bent axle 7 more can drive bent axle 7 and rotate along the to-and-fro motion of trapping piece with when crankshaft eccentric shaft 8 moves.Bent axle can be a solid crankshaft, also can be spiral shell bent axle in the hollow arbor braid.

Claims

1. rotary piston type double-shaft pneumatic motor, it is characterized in that half cylinder body by two band inner cores, the cylinder piston of a band bent axle, two trapping pieces, feather key and be positioned at trapping piece both sides cylinder block and advance, relief opening constitutes, two inner cores insert in the piston cylinder of bent axle piston from two ends respectively, cylinder barrel after the bent axle piston is positioned at and closes up, two bent axles pass from the two ends end plate axis hole of cylinder respectively, the bent axle piston cylinder has center wall, there is axis hole at the center wall center, there is keyway at the center wall edge, be right after on the piston barrel of keyway both sides, center wall edge 2 trapping mouths are arranged, crankshaft eccentric shaft by bearing fixing on piston cylinder center wall axis hole, cylinder barrel inner chamber radius equals piston cylinder radius and crankshaft crank sum, piston cylinder inner chamber radius equals cylinder inner core radius and crankshaft crank sum, the trapping tile height is the poor of cylinder barrel inner chamber radius and cylinder inner core radius, the trapping mouth is with long on trapping block length and the piston cylinder, and width is less than trapping mouth width.

2. according to the rotary piston type double-shaft pneumatic motor of claim 1, the bent axle that it is characterized in that the gas motor can be a solid shaft, also can be the air shaft of spiral shell in the band.