CN111022125A

CN111022125A - Novel wheel-driven pneumatic motor

Info

Publication number: CN111022125A
Application number: CN201911280146.5A
Authority: CN
Inventors: 闫传东
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-04-17

Abstract

The invention relates to a novel -wheel drive type pneumatic motor, which utilizes the characteristic of optimal air tightness of a cylindrical cylinder piston to arrange two acting cylinders in parallel, wherein the acting pistons are directly connected with multi-surface rack piston connecting rods, side reverse push racks of two groups of piston connecting rods are oppositely meshed with a middle reverse push gear, lower racks of the two multi-surface rack piston connecting rods are meshed with an output gear, the output gear is arranged on an output shaft through an overrunning clutch, the piston connecting rod group converts the reciprocating motion of the piston connecting rod group into the circular motion of the output shaft through the overrunning clutch to do work outwards, the combination of a traditional cylinder piston crankshaft is improved, the problems of motion dead points and component force of the connecting rods acting on the cylinder wall of the traditional crankshaft are eliminated, the torque output curve of the pneumatic motor is further optimized, and the acting efficiency of the pneumatic motor is greatly improved.

Description

Novel wheel-driven pneumatic motor

Technical Field

The invention relates to a novel -wheel driven pneumatic motor, wherein two acting cylinders are arranged in parallel, acting pistons are directly connected with multi-face rack piston connecting rods, two groups of piston connecting rods are provided with side-face reverse-push racks which are oppositely meshed with a middle reverse-push gear, racks below the two multi-face rack piston connecting rods are meshed with an output gear, the output gear is arranged on an output shaft through an overrunning clutch, and the piston connecting rod group converts the reciprocating motion of the piston connecting rod group into the circular motion of the output shaft through the overrunning clutch to act outwards.

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.

Disclosure of Invention

The technical solution of the invention is as follows:

a wheel driven pneumatic motor is composed of a multi-face rack-connecting rod connected to two groups of working pistons, a multi-face rack-connecting rod under said rod and engaged with the output gear, two groups of output gears installed to same output shaft via overrunning clutches, two groups of reverse racks on said connecting rod and engaged with the middle reverse gear, a gas distributing mechanism for filling high-pressure gas into said two groups of working cylinders, and a multi-face rack-connecting rod for reversely pushing back the working piston to cylinder B, 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 invention has the beneficial effects that:

the invention replaces the crankshaft crank transmission device with lower transmission efficiency of the traditional pneumatic motor with the rack and gear transmission device with higher transmission efficiency, the output gear meshed with the multi-surface rack piston connecting rods converts the reciprocating motion of the piston connecting rod group into the circular motion of the output shaft in a nondestructive way through the overrunning clutch, and pushes the output shaft to do work outwards, thereby greatly improving the torque transmission efficiency of the engine and greatly improving the power output efficiency of the engine.

Drawings

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

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

Fig. 3 and 4 are mechanical structure schematic diagrams of A, B groups of cylinders respectively charging air to do work in a depression section.

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 wheel-driven 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-face 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-face rack connecting rods 2 and 2-2 corresponding to the positions of the output gears to keep the linear motion of the multi-face rack connecting rods 2 and 2-2, a plurality of air distribution valve piston plates 14 in an air distribution valve 16 are connected on a valve rod 17 in series, a piston position sensor 21 arranged on the motor 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 wheel drive 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 new wheel-drive 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 new wheel-drive 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 new wheel-drive 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 new wheel-drive 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 or other servo motors in a linkage manner.

6. The new wheel-drive pneumatic motor according to claim 1, wherein: the air distribution mechanism can also be controlled by an electromagnetic air valve through an electric signal and an ECU, and can also be directly controlled by a mechanical scavenging air distribution mechanism.