CN211549783U

CN211549783U - Novel ratchet wheel driving type pneumatic motor

Info

Publication number: CN211549783U
Application number: CN201922242937.0U
Authority: CN
Inventors: 闫传东
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-09-22
Anticipated expiration: 2029-12-02

Abstract

The utility model relates to a novel ratchet drive formula pneumatic motor, utilize the best characteristics of cylindrical cylinder piston gas tightness, set up two acting cylinders side by side, the acting piston directly links to each other with multiaspect rack piston connecting rod, two sets of piston connecting rod side backstepping rack is relative with middle backstepping gear engagement, rack and output gear engagement below two multiaspect rack piston connecting rods, the output gear is installed on the output shaft through freewheel clutch, piston connecting rod group rethread freewheel clutch converts piston connecting rod group's reciprocating motion into the external acting of the circular motion of output shaft, the combination of traditional cylinder piston bent axle has been improved, there are motion "dead point" and the component problem that the connecting rod acted on the cylinder wall in traditional bent axle, and then the moment of torsion output curve of pneumatic motor has been optimized, the acting efficiency of pneumatic motor's acting has been improved greatly.

Description

Novel ratchet wheel driving type pneumatic motor

Technical Field

The utility model relates to a novel ratchet drive formula pneumatic motor, set up two acting cylinders side by side, the acting piston directly links to each other with multiaspect rack piston connecting rod, two sets of piston connecting rod side backstepping racks relative with middle backstepping gear engagement, rack and output gear meshing below two multiaspect rack piston connecting rods, output gear installs on the output shaft through freewheel clutch, piston connecting rod group rethread freewheel clutch converts the reciprocating motion of piston connecting rod group into the external acting of circular motion of output shaft.

Background

The traditional pneumatic motor mainly comprises an impeller type, a piston connecting rod crankshaft type, a gear type and the like, wherein the impeller type has the defects of high rotating speed, low torque, poor durability and the like, the piston connecting rod crankshaft type has larger torque but lower rotating speed, the efficiency of the pneumatic motor is difficult to achieve higher due to the transmission torque fluctuation of a crankshaft mechanism, and the gear type has lower working efficiency due to the inherent defect of low air tightness of a rectangular working cavity.

SUMMERY OF THE UTILITY MODEL

The technical solution of the utility model is that:

a novel ratchet wheel driving pneumatic motor is designed and manufactured, two working cylinders of the motor are arranged in parallel, two groups of working pistons are connected with a multi-surface rack connecting rod, a rack below the connecting rod is meshed with an output gear, two groups of output gears are respectively arranged on the same output shaft through an overrunning clutch, side reverse push racks of the two groups of piston connecting rods are oppositely meshed with a middle reverse push gear, the stress of the piston connecting rod group is converted into the reciprocating motion of the piston connecting rod group to do work outwards through the meshed output gear and then through the overrunning clutch, a concave auxiliary wheel is arranged on the multi-surface rack connecting rod corresponding to the position of the output gear to keep the linear motion of the working pistons, the two groups of working cylinders are alternately filled with high-pressure gas by a gas distribution mechanism, and the multi-surface rack connecting rod reversely pushes back the working piston of a cylinder B through the meshed reverse push gear, and simultaneously exhaust gas in the cylinder B is discharged, the exhaust gas and the exhaust gas mutually reciprocate to form a working cycle, the mechanical gas distribution mechanism is formed by connecting a plurality of piston valve plates in series on a valve shaft and is driven by a servo motor or other servo motors in a linkage manner, and the gas distribution mechanism can be controlled by an electromagnetic gas valve through an electric signal and an ECU (electronic control Unit) or can be directly controlled by a mechanical scavenging gas distribution mechanism.

The utility model has the advantages that:

the utility model discloses replaced the lower bent axle crank transmission of traditional pneumatic motor transmission efficiency with the rack and pinion transmission that transmission efficiency is higher, multiaspect rack and piston connecting rod meshed's output gear passes through the reciprocating motion nondestructive conversion of freewheel clutch with the piston rod group and is the circular motion of output shaft, promotes the external acting of output shaft, has improved the moment of torsion transmission efficiency of engine greatly for this engine power take off efficiency improves greatly.

Drawings

Fig. 1 is a basic principle block diagram of the present invention.

Fig. 2 is a schematic side sectional mechanical structure of the present invention.

Fig. 3 and 4 are schematic diagrams of mechanical structures of the depression section A, B group of cylinders respectively inflating to do work.

In fig. 2, 3, 4: 1. the device comprises an A acting cylinder, 1-2 and B acting cylinders, 2 and A cylinder multi-face rack connecting rods, 2-2 and B cylinder multi-face rack connecting rods, 3(3-2), a side reverse thrust rack, 4, a lower side output rack, 5, an output gear, 6, an overrunning clutch, 7, an output shaft, 8, a middle reverse thrust gear, 9(9-2), a concave auxiliary wheel, 10 and A cylinder acting pistons, 10-2 and B cylinder acting pistons, 11(11-2), an air inlet and outlet, 12, a middle reverse thrust gear shaft, 13, (13-2), a side auxiliary wheel, 14, a distribution valve piston group, 15, a distribution servo driver, 16, a distribution valve body, 17, a distribution valve rod, 18, a high-pressure air inlet pipe, 19, an exhaust pipe, 20, a machine body combined hole and 21 piston position sensors.

Detailed Description

A novel ratchet wheel drive type pneumatic motor is designed and manufactured as shown in figures 1, 2, 3 and 4, two A, B working cylinders of the motor are arranged in parallel, two groups of working pistons A, B are respectively connected with multi-surface rack connecting rods 2 and 2-2, racks 4 below the two connecting rods are respectively meshed with output gears 5, the two groups of output gears are respectively arranged on the same output shaft 7 through overrunning clutches 6, the side reverse pushing racks 3 and 3-2 of the two groups of piston connecting rods are oppositely meshed with a middle reverse pushing gear 8, concave auxiliary wheels 9 and 9-2 are arranged on the multi-surface rack connecting rods 2 and 2-2 corresponding to the positions of the output gears to keep the linear motion of the multi-surface rack connecting rods 2 and 2-2, a plurality of distributing valve piston plates 14 in a distributing valve body 16 are connected on a valve rod 17 in series, a piston position sensor 21 arranged on the machine body provides control signals for an ECU, the servo motor or other servo motors 15 drive the air distribution valve piston group 14 in a linkage manner, high-pressure air is guided by the air distribution mechanism and is respectively filled into A, B working cylinders according to timing requirements, the multi-face rack connecting rod reversely pushes back the B cylinder working piston through the meshed middle reverse push gear 8 when the cylinder A is inflated to work and simultaneously discharges waste gas in the cylinder B, and the multi-face rack connecting rod reversely pushes back the A cylinder working piston through the meshed middle reverse push gear 8 when the cylinder B is inflated to work and simultaneously discharges the waste gas in the cylinder A, so that working cycles are formed by mutual reciprocation.

The valve train can also be controlled directly by a mechanical scavenging valve train to form another embodiment.

Claims

1. A novel ratchet drive type pneumatic motor is characterized in that: two working cylinders of the motor are arranged in parallel, two groups of working pistons are connected with a multi-surface rack connecting rod, a rack below the connecting rod is meshed with an output gear, and side reverse push racks of the two groups of piston connecting rods are oppositely meshed with a middle reverse push gear.

2. The novel ratchet-driven pneumatic motor according to claim 1, wherein: the output gear is arranged on the same output shaft through the overrunning clutch, and the stress of the piston connecting rod group is converted into the reciprocating motion of the piston connecting rod group to do work outwards through the meshed output gear and the overrunning clutch.

3. The novel ratchet-driven pneumatic motor according to claim 1, wherein: a concave auxiliary wheel is arranged on the multi-surface rack connecting rod corresponding to the position of the output gear.

4. The novel ratchet-driven pneumatic motor according to claim 1, wherein: the two groups of working cylinders are alternately filled with high-pressure gas by a gas distribution mechanism, when the cylinder A is filled with gas to work, the multi-face rack connecting rod reversely pushes back the working piston of the cylinder B through the meshed reverse-pushing gear, and simultaneously discharges waste gas in the cylinder B, so that the working cycle is formed by mutual reciprocation.

5. The novel ratchet-driven pneumatic motor according to claim 1, wherein: the mechanical air distribution mechanism is formed by connecting a plurality of piston valve plates on a valve shaft in series and is driven by a servo motor in a linkage manner.

6. The novel ratchet-driven pneumatic motor according to claim 1, wherein: the valve train can be controlled directly by a mechanical scavenging valve train.