CN1399063A

CN1399063A - Sector engine

Info

Publication number: CN1399063A
Application number: CN 02133660
Authority: CN
Inventors: 梁锡昌; 王光建
Original assignee: Chongqing University
Current assignee: Chongqing University
Priority date: 2002-08-22
Filing date: 2002-08-22
Publication date: 2003-02-26
Anticipated expiration: 2022-08-22
Also published as: CN1177132C

Abstract

The sector engine features the rack-sector gear mechanism to realize the conversion from the reciprocation of the piston to rotation of the sector gear, and the sector gear for mesh in the forward direction only. Four cylinders distributed in the tangent direction of the central shaft are made to produce work successively, and the oil cylinder link rod mechanism is used to realize the complete working circulation of the steam cylinders. The rolling spline is used to guide the rack. The engine has high transmission efficiency, saving in power, smooth transmision, less vibration, low noise, compact structure and light weight.

Description

Sector engine

Technical field

The present invention relates to the I. C. engine of mechanical engineering field, specifically is a kind of automobile tooth sector motor.

Background technique

Internal-combustion engine is to be widely used in machinery or the Transport Machinery that various needs move, present internal-combustion engine mainly adopts connecting rod that piston mobile is converted to rotation, this reciprocating mechanism exists piston side pressure, driving torque changes greatly, and radial thrust is big, and the dead point is arranged, also there is very big sliding friction loss, therefore, its mechanical efficiency has only 0.8, has consumed a large amount of energy.Domestic and international five sixties were once studied rotary piston engine, because sealing and problem of materials fail to solve, and the conceptual phase of stop still so far.Also in research gas turbine is used for automobile abroad, but less because of power, transmission efficiency is also very low.Therefore, so far both at home and abroad at automotive field, still only use crank engine.

Summary of the invention

Technical problem to be solved by this invention is: provide a kind of and realize that by the tooth bar fan-shaped gear mechanism linear reciprocating motion is to the motor that rotates continuously.Rack and pinion mechanism can be converted to rotation with straight line motion, and it has very high transmission efficiency, and its mechanical efficiency reaches 0.98, and has constant velocity ratio, makes mechanism's work comparatively steady.Tooth sector can the elimination tooth bar negative half-wave, rotate thereby linear reciprocating motion is converted to continuous equidirectional.

For solving the problems of the technologies described above, the technical solution used in the present invention comprises main frame, starter motor, and generator, oil pump, Carburetor, igniter is characterized in that:

(1) layout of cylinder is furnished with two tooth sector on the central shaft of motor, the both sides of each tooth sector are furnished with two cylinders, I and II, and III and IV, each cylinder is finished the driving of a stroke.

(2) tooth bar fan-shaped gear mechanism is by constituting with piston tooth bar of fixing and the tooth sector that is fixed on the central shaft; Utilize rack and pinion mechanism to realize that piston linear moves to the conversion that gear shaft rotates, when making the tooth bar backhaul, tooth bar is not passed to gear with drawback movement, and gear is made tooth sector.Like this, piston moves back and forth always, passes to the central shaft rotation and only forward is moved.

(3) central shaft rotates continuously, and tangent direction is distributed with 4 cylinders in the joint garden of tooth sector, and blast successively drives tooth sector successively and realizes 0 ~ 180 °, and 180 ° ~ 360 °, 360 ~ 540 °, 540 ° ~ 720 ° continuous rotation.Finish 4 complete stroke of cylinder work.

(4) double-action mechanism, every countercylinder I and II, the interlock that the piston of III and IV is respectively realized by a pair of oil cylinder, wherein, every pair of oil cylinder is communicated with by oil pipe, every pair of oil cylinder connects by the tooth bar on corresponding with it the respectively cylinder of its piston rod, in the rack linear motion, drives another cylinder tooth bar by oil cylinder and resets; Simultaneously, the axle with two tooth sector can make cylinder I and III again, II and IV interlock.Like this, when a cylinder work done, other cylinder is finished exhaust, air-breathing, compression stroke successively.

(5) camshaft drive constitutes by a pair of 1: 2 spiral gear of installing on the central shaft with by the camshaft and the cam thereof of its drive.It is a full employment circulation that camshaft circles, and drives the switching that rocking bar is controlled each air valve by the cylindrical cam on it.By two cylinders of cylindrical cam control, i.e. I and III, the work of II and IV

(6) rolling spline guide mechanism adopts rolling spline to finish the guiding of piston, piston rod and tooth bar, adopts non-complete cycle rolling spline, to guarantee to reduce the friction of piston and cylinder, reduces piston length, guarantees the correct engagement of rack pinion.

Technique effect of the present invention, because the transmission efficiency of rack pinion transmission is very high, its transmission efficiency can reach 0.98; Therefore, the existing crank-connecting rod motor of this motor can save energy 10 percentage points.In addition, piston is not subjected to lateral thrust, only is subjected to pure axial force, so can reduce piston length, reduces the frictional loss of piston and cylinder, increases the life-span of cylinder sleeve and piston; Since switching mechanism output rotatablely move and piston linear moves into direct ratio, and when same output speed, the about doppio lunghezza di tempo of reciprocating motion of the pistons, therefore, output movement is steady, vibrates for a short time, power performance is good.Since can be without sliding bearing, the output shaft two ends are rolling bearing, have also improved the performance of machine.The motor volume is little, and is in light weight.

Description of drawings

Fig. 1, tooth bar fan-shaped gear mechanism schematic representation;

Fig. 2, the continuous rotating mechanism schematic representation of central shaft;

Fig. 3, four cylinder engine work cycle schematic representation;

Fig. 4, the double-action mechanism schematic representation;

Fig. 5, motor total arrangement schematic representation;

Fig. 6, the structural representation of rolling spline guide mechanism.

Embodiment

Below by accompanying drawing, concrete mode of execution of the present invention is described further.

Fig. 1 is the tooth bar fan-shaped gear mechanism, when piston [2] work done to the right of cylinder [1], piston rod [3] moves right, piston rod is led by rolling spline pair [4], tooth bar [3] makes integral body with piston rod, like this, and when tooth bar moves right, drive tooth sector [5] through rack and pinion mechanism and rotate, outwards work done.Tooth sector has only 180 ° the engagement of tooth and tooth bar is arranged, thus tooth bar move right, make tooth sector turn over 180 ° after, the disengaging of fan tooth wheel and rack, at this moment, tooth bar returns left under the promotion of double-action mechanism oil cylinder, does not influence tooth sector and is rotated further.

Fig. 2 is the continuous rotating mechanism of central shaft, and tooth sector [5] is installed on the central shaft, rotates outside work done by it.When the tooth bar [3] of I cylinder moves down, can drive tooth sector [5] is that central shaft turns over 180 ° counterclockwise, at this moment, tooth sector [5] on the one hand with the tooth bar [3] of I cylinder, on the other hand, begin and the engagement of the tooth bar [8] of II cylinder the work done that makes progress of the piston of II cylinder again, promoting tooth sector continues to forward 360 ° to, i.e. a turn over by 180 °.

Fig. 3 represents the work cycle of four cylinder engine, wherein Fig. 3 a shows the work done of I cylinder, tooth bar [3] moves down, drive tooth sector [5] and turn over 0 ~ 180 ° counterclockwise, Fig. 3 b shows the work done of II cylinder, tooth bar [8] moves up, and drives tooth sector [6] and turns over 180 ° ~ 360 ° counterclockwise, i.e. a turn over.The axis of central shaft [6] is vertical paper, also has same tooth sector and the cylinder of a cover on central shaft.Fig. 3 c shows the work done of III cylinder, drives second tooth sector and turns over 360 ° ~ 540 ° counterclockwise, and Fig. 3 d shows the work done of IV cylinder, drives second tooth sector and turns over 540 ° ~ 720 ° counterclockwise, i.e. the work cycle of four-journey is finished in two turn overs.

Fig. 4 shows the double-action mechanism of tooth bar, and double-action mechanism is by oil cylinder [15,16,17].Oil pipe [18], oil cylinder [19,20,21] is formed, and its end is fixed on the tooth bar of cylinder I, and the other end is fixed on the tooth bar of cylinder [2], because therefore the incompressibility of oil, can make two tooth bars make same moved further.The tooth bar of cylinder III and IV is also used the Same Way interlock.

Fig. 5 is the total arrangement of motor, because two tooth sector [5] and [7] all are fixed on the central shaft [6], the tooth bar with cylinder I and cylinder III meshes simultaneously, and therefore, when central shaft rotated, the tooth bar of cylinder I and cylinder III was with same moved further.

The purpose of double-action mechanism is the work done that realizes each cylinder, exhaust, and air-breathing, 4 strokes of calming the anger, table 1 have been listed four stroke cycle figure of four cylinders.

Table 1

Stroke	The central shaft corner	The I cylinder	The II cylinder	The III cylinder	The IV cylinder
Stroke	The central shaft corner	The I cylinder	The II cylinder	The III cylinder	The IV cylinder	The 1st stroke	????0°~180°	↓ work done	↓ calm the anger	↓ air-breathing	↓ exhaust
The 2nd stroke	????180°~360°	↑ exhaust	↑ work done	↑ calm the anger	↑ air-breathing	The 1st stroke	????0°~180°	↓ work done	↓ calm the anger	↓ air-breathing	↓ exhaust
The 2nd stroke	????180°~360°	↑ exhaust	↑ work done	↑ calm the anger	↑ air-breathing	The 3rd stroke	????360°~540°	↓ air-breathing	↓ exhaust	↓ work done	↓ calm the anger
The 4th stroke	????540°~720°	↑ calm the anger	↑ air-breathing	↑ exhaust	↑ work done	The 3rd stroke	????360°~540°	↓ air-breathing	↓ exhaust	↓ work done	↓ calm the anger

In Fig. 5, cylinder I, II arrange relatively, cylinder I, III arrange in the same way, two tooth sector [5] and [7] cophasing are fixed on the central shaft [6], driving camshaft [13] by a pair of 1: 2 spiral gear [14] rotates, on camshaft, be fixed with cylindrical cam 12, drive air valve work through rocking bar 10.

Fig. 6 shows rolling spline, is made up of spline housing [24], steel ball [23], tooth bar [22], realizes rack shaft to reaching circumferential registration, and motion is flexible, the efficient height.

Claims

1. a sector engine comprises main frame, starter motor, generator, oil pump, Carburetor, igniter, exhaust gear; It is characterized in that:

(1), the layout of cylinder, on the central shaft of motor, be furnished with two tooth sector, the both sides of each tooth sector are furnished with two cylinders (I and II, III and IV), each cylinder is finished the driving of a stroke;

(2), tooth bar fan-shaped gear mechanism, by constituting with piston tooth bar of fixing and the tooth sector that is fixed on the central shaft, realize that by it piston linear moves to the conversion that sector shaft rotates, gear makes tooth sector, piston is moved back and forth always, pass to the central shaft rotation and only forward is moved;

(3) central shaft rotates continuously, and tangent direction is distributed with 4 cylinders in the joint garden of tooth sector, successively blast, drive tooth sector successively and realize 0 ~ 180 °, 180 ° ~ 360 °, 360 ~ 540 °, 4 complete stroke of cylinder work are finished in 540 ° ~ 720 ° continuous rotation;

(4) double-action mechanism, every countercylinder (I and II, III and IV) the interlock respectively realized of piston by a pair of oil cylinder, wherein, every pair of oil cylinder is communicated with by oil pipe, every pair of oil cylinder connects by the tooth bar on corresponding with it the respectively cylinder of its piston rod, in the rack linear motion, drives another cylinder tooth bar by oil cylinder and resets; Simultaneously, the axle with two tooth sector can make cylinder I and III again, II and IV interlock.Like this, when a cylinder work done, other cylinder is finished exhaust, air-breathing, compression stroke successively.

2, sector engine according to claim 1, it is characterized in that: exhaust gear is a camshaft drive, constitute by a pair of 1: 2 spiral gear of installing on the central shaft with by the camshaft and the cam thereof of its drive, drive the switching that rocking bar (10) is controlled each cylinder air valve by the cylindrical cam on it.

3, sector engine according to claim 1 is characterized in that: adopt non-complete cycle rolling spline to finish piston, the guiding of piston rod and tooth bar; This rolling spline guide mechanism is made up of spline housing [24], steel ball [23], tooth bar [22], and wherein rolling spline is non-complete cycle spline.