CN1369630A

CN1369630A - Engine with rolling screw

Info

Publication number: CN1369630A
Application number: CN 02113455
Authority: CN
Inventors: 梁锡昌
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-03-13
Filing date: 2002-03-13
Publication date: 2002-09-18
Anticipated expiration: 2022-03-13
Also published as: CN1142365C

Abstract

A roll screw engine includes screw conerting mechanism and continuous step by step rotating mechanism, of which the screw converting mechanism is formed by connecting integral key pair and roll screw pair in series arrangement. The internal sheath of above said pairs will become a complete set with its one end or two ends to be connected with one or several piston rod in series. The continuous step by step rotating mechanism includes two sets of roll screw pair with rotating direction in reverse and exporting gear wheel as two serewing sheathes to be connected with exporting gear wheel separately through clutch. The present invention uses roll screw converting mechanism in stead of crank link mechanism to convert reciprocating linear motion of piston into continuous rotating motion.

Description

Engine with rolling screw

(1), technical field

The present invention relates to the internal combustion engine type motor in the mechanical engineering field, specifically is a kind of engine with rolling screw.

(2), 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 alters a great deal, radial thrust is very big, and the dead point is arranged, and has very big problems such as sliding friction loss, therefore, efficient has only 0.3～0.4.Once studied rotary piston engine in five sixties both at home and abroad, but, now stopped research because sealing and problem of materials can not solve.So extensive use crank-connecting rod motor still so far.

(3), summary of the invention

Technical problem to be solved by this invention is: provide a kind of and pay realization based on rolling screw the straight line motion of piston is converted to the motor that rotatablely moves.Straight line motion can be converted to pro rata by spiral switching mechanism and rotatablely move, therefore, the rotational velocity of output is steady far beyond connecting rod, so the vibration of motor, noise are little; All relative movement faces of rolling screw mechanism are the contact of rolling, and coefficient of rolling friction only 0.001 is so the transmission efficiency of rolling screw mechanism is far beyond the connecting rod height.

For solving the problems of the technologies described above, the technical solution used in the present invention comprises:

(1) spiral switching mechanism: it is paid by rolling spline and rolling screw is paid serial arrangement and formed; Wherein, rolling spline is paid by overcoat, middle cover, interior cover, steel ball and is formed; Rolling screw is paid by screw-casing, middle cover, interior cover, steel ball and is formed; The middle footpath that cover and spiral were paid in rolling spline was paid is equal, and interior cover is an integral body; Spline is paid the equal diameters that spiral is paid each steel ball; The interior piston rod of one or both ends and one or more cylinder blocks of cover is connected in series in described; Like this, when interior cover was driven moving linearly by piston, screw-casing just rotated in the environment of pure rolling; When cover moves a stroke from left to right in piston drives, screw-casing will turn over an angle in the counterclockwise direction; When the mobile from right to left stroke of interior cover resetted, screw-casing went back to an angle more along clockwise direction; This mechanism has realized the conversion of the linear reciprocating motion of piston, interior cover to the screw-casing crankmotion.

(2) continuous stepping rotating machinery: comprise that the opposite rolling screw of two cover rotation directions pays and output gear, be connected with output gear by clutch respectively by two screw-casings; The interior cover that two cover spirals are paid is an integral body, and two screw-casings are contained in the middle of two thrust bearings, can only rotate; Like this, when interior cover moved a stroke from left to right, the left hand screw cover rotated counterclockwise an angle, turns over same angle through the left clutch driven gear; And when interior cover moves back to a stroke from right to left, the right-hand screw cover by the right clutch on it again driven gear change an angle again, the continuous stepping of formative gear is rotated; This mechanism has realized that two screw-casings swing to the conversion that the gear continuous equidirectional rotates.Described left and right clutch is free wheel device or magnetic clutch.

The technique effect that the present invention produces owing to described structure is significantly, and promptly because rotation switching mechanism is the pure rolling transmission, and its transmission efficiency can reach 0.95, therefore, this motor can save energy more than 10 percentage points than available engine; When output power was identical, the shared volume ratio connecting rod of this mechanism was little 20 times, and weight is little 15 times.Because output rotation and the piston linear of switching mechanism move into direct ratio, and, when same output speed, slow 3 times of the reciprocal telemechanical speed of piston, therefore, it is steady to export rotational motion, vibrates for a short time, and power performance is good, and noise is little, can improve environment.Because race of engine power is very little, therefore, starter motor power is very little; Because the power of output is steady, therefore, can do flywheel very little.Stack up says that the volume of this motor can descend 40%, and weight can descend 50%.

(4), description of drawings

Fig. 1, spiral switching mechanism structure sectional view;

Fig. 2, the A-A cross section of Fig. 1;

Fig. 3, the B-B cross section of Fig. 1;

Fig. 4, the generalized section of stepping rotating machinery continuously;

Fig. 5, the C-C cross section of Fig. 4;

Fig. 6, the structural representation of the present invention 4 stroke mechanisms;

Fig. 7,4 stroke mechanism angle of swing schematic representation;

Fig. 8, the structure sectional view of the present invention's 4 two-stroke engines.

In the accompanying drawing 1～8: in the 1-among cover, 2-overcoat, 3-screw, the 4-in cover, 5-steel ball, 6-left hand screw cover, 7-left side thrust bearing, the 8-spiral cover, 9-roller, 10-gear, 11-roller, 12-right-hand screw cover, the right thrust bearing of 13-, 14-plug, 15-plug, 16～19-piston, 20-camshaft, 21-left side lid, 22-left side cylinder, 23-shell, 24-right side cylinder, the 25-right side cover.

(5), embodiment

Below by accompanying drawing the specific embodiment of the present invention is described further.

Fig. 1 is for to be converted to the mechanism that rotatablely moves with straight line motion, and it is paid by rolling spline and pays serial arrangement with rolling screw and form; Rolling spline is paid and is made up of overcoat 2, middle cover 4, interior cover 1, steel ball 5, and its purpose is that cover 1 can only move axially in the restriction; Rolling screw is paid and is made up of screw-casing 6, middle cover 8, interior cover 1, steel ball 5, and its function is when interior cover 1 moves axially, and drives screw-casing 6 and rotates.Be distributed with straight trough and spiral chute on the interior cover 1.The overcoat 2 that rolling spline is paid is fastened on the cylinder block by outer cylinder, flange, screw 3; Thrust bearing 7 restriction screw-casings 6 can not move axially, and can only rotate; The motion of

middle cover

4,8 standard steel balls 5.Like this, when cover 1 moves in the piston (see figure 6) drives, pay drive screw-casing 6 by spiral and rotate.And the suffered moment of reaction of screw-casing 6 is passed to spline overcoat 2, cylinder block by interior cover 1.Find out that by figure all stressed relative movement faces are the rolling transmission.This mechanism has realized that the linear reciprocating motion with piston, interior cover 1 is converted to the crankmotion of screw-casing 6.

The mechanism that the continuous stepping that Fig. 4 is converted to gear 10 for two screw-casings positive and negative rotatablely moved rotatablely moves, pay 1,5,6 and make mirror image along end face DD by left hand screw by the left free wheel device that left hand screw cover 6, the post 9 that rolls left, gear 10 constitute, become the right-hand screw of balanced configuration to pay 1,2 and right

free wheel device

12,11,10 with it, formed this mechanism; The interior cover 1 of whole new mechanism makes integral body.Left hand screw is paid and is that dextrorotation, right-hand screw pays to left-handed; So when interior cover 1 was moved right by the drive of I piston (see figure 6), screw-casing 6 rotated counterclockwise through free wheel device roller 9 driven gears 10 and rotates counterclockwise; And in the II piston drives, overlapping 1 when being moved to the left, screw-casing 12 rotates counterclockwise, and rotates counterclockwise through roller 11 driven gears 10 of the 2nd free wheel device; At this moment, screw-casing 6 and roller 9 that left hand screw is paid skid, and simultaneously, screw-casing 6 resets.

In the embodiment that accompanying

drawing

4,5 provides, left and right free wheel device is the limit-type multi-roller free wheel device of reed, by with the output gear 10 of unidirectional internal tooth, the roller between screw-

casing

6 or 12 9 or 11 and the roller position-limiting spring leaf that is installed on output gear 10 each unidirectional internal tooth constitute.Adopt 18 rollers among the embodiment of accompanying drawing in each free wheel device, increased reliability.

Shown in Figure 6 is four-stroke mechanism, is furnished with I piston 16, III piston 18 in the serial of the left side of interior cover 1, is furnished with II piston 17, IV piston 19 in the right of interior cover 1 serial, and they are arranged in a line, and Fig. 7 is gear 10 output corner θ figure; Like this, the 1st stroke is established the gaseous detonation in the I cylinder, drives piston 16, interior cover 1 moves to right, and pays by the 1st spiral and drives screw-casing 6, gear 10 turns over an angle θ counterclockwise, as 90 °; The 2nd stroke, the gaseous detonation in the II cylinder, piston 17, interior cover 1 move to left, and pay through the 2nd spiral and drive screw-casing 11, gear 10 turns over an angle θ again, as 90 °～180 °; Gaseous detonation in the 3rd stroke, III cylinder, drive piston 18, interior cover 1 move to right, and gear turns over an angle θ again, as 180 °～270 °; Gaseous detonation in the 4th stroke, IV cylinder drives piston 19 and moves to left, and gear 10 turns over an angle again, as 270 °～360 ° ... thereby, reach the continuous rotation of gear 10.

The I cylinder 0～90 ° finish blast after, finish exhaust, air inlet, compression totally 4 circulations in all quadrants afterwards (90 °) successively, as shown in table 1; 4 strokes of other each cylinder move past a quadrant successively, thereby realize the continuous operation of motor.Table 1

By finding out in the accompanying drawing, because the terminal point that interior cover 1 drives piston action is not strict, therefore, the height when phase place of detonating requires unlike connecting rod.Because output torque is even continuously, therefore, also not high to the requirement of flywheel.

Fig. 8 shows the total arrangement of motor, the straight line rotation switching mechanism of motor and continuous stepping mechanism are arranged in the middle part rectangular housing 23, axis is horizontal, about respectively arrange two cylinders, Far Left is a left side lid 21, then for comprising the left cylinder 22 of two cylinder one lid, left side lid 21 and left cylinder 22 by six screw on middle casing 23; The right is a symmetric arrangement; The bottom is a camshaft, drives each distribution valve and distributor by it; Whole cylinder body is rectangle, fine arrangement generator, starter motor, gearbox, cooler bin, air inlet-outlet pipe, Carburetor on two big planes on both sides.

The present invention can be made into single cylinder or multi-cylinder as required except that above-mentioned four cylinder structures.For example, the motor mode of execution of single cylinder structure is to connect cylinder block at the left end of spiral switching mechanism, is that dextrorotation, right-hand screw pays to left-handed because left hand screw is paid; So when interior cover 1 was moved right by the piston drive, screw-casing 6 rotated counterclockwise through free wheel device or magnetic clutch driven gear 10 and rotates counterclockwise; And in be enclosed within the effect of inertia or other flywheel mechanism and return original position, thereby reach the continuous rotation of gear 10.

Other mechanism that the present invention comprised, as distribution device, cooling mechanism, lubricating structures etc. can adopt existing techniques in realizing.

Claims

1. an engine with rolling screw comprises cylinder block, cylinder head, distribution device, energy transfer mechanism, cooling mechanism, lubricating structure; It is characterized in that: energy transfer mechanism comprises spiral switching mechanism and continuous stepping rotating machinery: wherein, spiral switching mechanism is paid by rolling spline and rolling screw is paid serial arrangement and formed, rolling spline is paid by overcoat (2), middle cover (4), interior cover (1), steel ball (5) and is formed, rolling screw is paid by screw-casing (6,12), middle cover (8), interior cover (1), steel ball (5) and is formed, and it is an integral body that rolling spline is paid the interior cover of paying with rolling screw (1); In the interior piston rod of one or both ends and one or more cylinder blocks of cover be connected in series; Continuously the stepping rotating machinery comprises that the opposite rolling screw of the cover rotation direction of two in the spiral switching mechanism pays and output gear (10), is connected with output gear (10) by clutch respectively by two screw-casings (6,12); The interior cover (1) that two cover spirals are paid is an integral body, and two screw-casings are contained in the middle of two thrust bearings (7,13).

2. engine with rolling screw according to claim 1 is characterized in that: rolling spline is paid the middle footpath that rolling screw pays and is equated; Each steel ball (5) equal diameters.

3. engine with rolling screw according to claim 1 is characterized in that: described clutch is free wheel device or magnetic clutch.

4. according to claim 1,3 described engine with rolling screw, it is characterized in that: free wheel device is the limit-type multi-roller free wheel device of reed, by with the output gear (10) of unidirectional internal tooth, be positioned at the roller (9 or 11) between the screw-casing (6 or 12) and the roller position-limiting spring leaf that is installed on each unidirectional internal tooth of output gear (10) constitutes.

5. engine with rolling screw according to claim 1 is characterized in that: piston (16,18) is arranged in interior cover (1) left side serial by the spiral conversion, and the piston (17,19) that the right serial is arranged is formed four-stroke mechanism.

6. according to claim 1,5 described engine with rolling screw, it is characterized in that: the spiral switching mechanism of motor is arranged in the middle part, the horizontal configuration of axis, two cylinders in the left side (I, III), the right two cylinders (II, IV), the bottom is camshaft (20), whole engine body is divided into 5 square box, be fixed on the centerbody from both sides by screw, motor is exported by intermediate gear (10).