CN102926862B - Convex inner two-phase cam rolling shifting transmission internal-combustion engine - Google Patents

Abstract

The utility model relates to an external convex internal two-phase cam rolling transmission internal combustion engine, relates to the field of gas power, and belongs to a multi-cylinder internal combustion engine. The invention provides a new type of internal combustion engine. Eight cylinders are symmetrically and evenly distributed around the inner two-phase inner cam, which is convex and inner. On the inner cam, the power is transmitted to the output shaft keyed with the center wheel by the outer convex inner two-phase inner cam through the two-phase inner cam rolling movable tooth transmission. The internal combustion engine omits the connecting rod and crankshaft in the traditional internal combustion engine, and its external convex internal two-phase internal cam rolling transmission mechanism has no eccentric mass, and has the characteristics of inertial force and working load self-balancing. The speed of the output shaft depends on the transmission ratio of the movable gear drive. If the movable gear frame is fixed, the center wheel will output high torque at low speed, which can be widely used in engineering machinery, military and other fields that require high power, such as excavators and armored vehicles. The internal combustion engine has simple and compact structure, small axial dimension, self-balanced force, and stable operation.

Description

External convex internal two-phase cam rolling transmission internal combustion engine

technical field

The invention relates to the field of gas power, more specifically, an internal-combustion engine with a convex-inside two-phase cam rolling transmission.

Background technique

The most commonly used internal combustion engine at present is a four-stroke crankshaft connecting rod type internal combustion engine. The transmission structure of this internal combustion engine all adopts a crank connecting rod mechanism, and the crankshaft is driven by the connecting rod, thereby converting the linear motion of the piston into the rotary motion of the crankshaft. Because this internal combustion engine drives the crankshaft to rotate by the linear motion of the piston and the planar motion of the connecting rod, there is a large friction between the kinematic pairs, resulting in low transmission efficiency of the internal combustion engine. The crankshaft connecting rod type internal combustion engine also has the following major defects: large volume; large unbalanced centrifugal force on the connecting rod and crankshaft; large impact and large vibration; and thus cause large mechanical wear and shorten the life of the internal combustion engine; complex structure, It is difficult to process, manufacture and assemble.

In addition, usually the internal combustion engine and the transmission device are two independent machines, and the internal combustion engine needs to be additionally equipped with a reducer for subsequent transmission, resulting in a large volume.

Contents of the invention

The object of the present invention is: in order to overcome the above-mentioned defects existing in the existing crankshaft connecting rod type internal combustion engine, the present invention provides a low-speed diesel engine with simple and compact structure, small volume, small impact vibration, stable operation, high power, long life and high efficiency. Torque four-stroke internal combustion engine - external convex internal two-phase cam roll transmission internal combustion engine.

The technical solution adopted by the present invention to solve the technical problem is: a two-phase cam rolling transmission internal combustion engine with an outer convex inner, mainly composed of an exhaust valve (1), a cylinder head (2), a cylinder (3), an intake valve (4), cylinder block (5), piston (6), push rod (7), spring (8), roller (9), output shaft (10), two-phase inner cam with outer convex inner (11), roller It is composed of movable tooth (12), movable tooth frame (13), center wheel (14), starting system, air distribution system, cooling system, oil supply system, lubrication system, etc. (11) There are eight cylinders (3) symmetrically and evenly distributed in a ring, and the two-phase internal cam rolling transmission mechanism converts the reciprocating linear motion of the piston into the rotary motion of the output shaft—the cylinder piston (6) passes through the push rod The linear reciprocating motion of (7) makes the outer convex inner two-phase inner cam (11) rotate, and the outer convex inner two-phase inner cam (11) transmits the power to the central theory (14) through the two-phase inner cam rolling movable tooth transmission The output shaft (10) connected by a key, the final power is output by the output shaft (10), and the external convex internal two-phase internal cam (11) organically integrates the internal combustion engine and the two-phase internal cam rolling movable tooth drive, so that the internal combustion engine does not need Equipped with a reducer.

In the above technical solution, the externally convex and internal two-phase internal cam rolling transmission mechanism is formed by an organic combination of a cam mechanism and a two-phase internal cam rolling movable tooth transmission mechanism. Among them, the cam mechanism is composed of a push rod (7), a roller (9), a convex inner two-phase inner cam (11), a cylinder body (5), and a spring (8). One end of the push rod (7) is connected to the piston ( 6) Fixed connection, the other end is equipped with a roller (9), the contact between the push rod (7) and the convex inner two-phase inner cam (11) is changed from a sliding friction connection to a rolling friction connection due to the roller (9) , one end of the spring (8) is fixed under the piston (6), and the other end is fixed on the boss at the lower part of the cylinder. The spring (8) makes the roller (9) on the push rod always align with the two-phase inner cam ( 11) Contact, each cylinder is equipped with piston, push rod with roller and spring.

The two-phase inner cam rolling movable tooth transmission mechanism consists of an outer convex inner two-phase inner cam (11), a rolling movable tooth (12), a movable gear rack (13), a center wheel (14) and an output shaft ( 10) Composition. The outer surface of the outer convex inner two-phase inner cam (11) is a four-phase convex profile with four convex parts that form an angle of 90° with each other and are axially symmetrical, and the inside is a double eccentric or elliptical two-phase inner cam. Therefore, the convex internal two-phase internal cam (11) is not only the cam in the cam mechanism, but also the two-phase internal cam in the two-phase internal cam rolling movable tooth transmission mechanism. The external convex internal two-phase internal cam (11) connects the internal combustion engine and The two-phase internal cam rolling movable tooth transmission is organically combined into one, and the entire two-phase internal cam rolling movable tooth transmission mechanism is built in the inside of the outward convex internal two-phase internal cam (11).

The rolling movable tooth (12) is composed of a rolling assembly and a moving assembly, wherein the rolling assembly is composed of a sleeve (15) and a needle (16); the moving assembly is composed of a moving pin (17) and a moving block (18). The rolling assembly is restricted on the moving pin (17) by the big end of the moving pin (17) and the moving block (18), and forms a rotating pair with the moving pin (17). The large end of the moving block (18) and the moving pin (17) The end can move in the radial guide groove of the movable gear frame (13) and form a moving pair with the movable gear frame (13); the outer cylindrical surface of the sleeve (15) is in contact with the outer convex inner two-phase inner cam (11) and the center wheel ( 14) Each meshes with each other to form a rolling pair, and the moving block (18) and the moving pin (17) are in clearance fit, so that the large end of the moving pin (17) and the moving block (18) can adapt to the radial guide of the movable rack. slot to avoid jamming.

The outer surface cam profile curve of the outer convex inner two-phase inner cam (11) can be selected according to actual design requirements to obtain the best dynamic performance and improve the energy conversion efficiency of the internal combustion engine. The axis lines of parts such as output shaft (10), convex inner two-phase inner cam (11), movable rack (13) and center wheel (14) overlap and are supported by frame bearings. The difference between the number of teeth Z ₁₂ of the rolling movable teeth and the wave number Z ₁₄ of the center wheel is 2, the movable gear frame (13) is fixedly connected with the frame, and the center wheel (14) is keyed to the output shaft (10); the rolling movable teeth ( 12) Mesh with the outer convex inner two-phase inner cam (11) and the center wheel (14) respectively to form a high pair, that is, the outer cylindrical surface of the sleeve (15) and the outer convex inner two-phase inner cam (11) and the center Wheels (14) are meshed respectively to form a rolling pair.

The rotation speed of the output shaft depends on the transmission ratio of the two-phase internal cam rolling movable gear transmission, and the proper selection of the gear matching scheme of the two-phase internal cam rolling movable tooth transmission can obtain a larger transmission ratio and realize low-speed high-torque output.

In the above technical solution, eight cylinders (3) are distributed symmetrically and evenly in a circular shape around the two-phase internal cam (11), which is convex and internal. The two cylinder pistons with synchronous state are taken as a group, and the four groups of cylinder pistons perform the suction stroke, compression stroke, gas combustion power stroke and exhaust stroke in sequence. The phase difference of cam (11) rotation angle is 45 °. The linear reciprocating motion of the cylinder piston (6) through the push rod (7) makes the outer convex inner two-phase inner cam (11) rotate, and the outer convex inner two-phase inner cam transmits power to the The output shaft (10) of the central wheel key coupling, the final power is output by the output shaft (10). In the two-phase internal cam rolling movable tooth transmission, the convex internal two-phase internal cam (11) and the rolling movable tooth (12) are multi-teeth meshed, so high power and high torque transmission can be realized.

Compared with prior art, main inventive point of the present invention is.

① The outer part of the two-phase inner cam with convex inner part is a four-phase cam with four protruding parts at an angle of 90° to each other, while the inner part is a double eccentric circle or oval two-phase inner cam structure, which rolls the two-phase inner cam The movable tooth transmission mechanism is built in the cam of the cam mechanism, so that the cam in the cam mechanism and the two-phase internal cam rolling of the two-phase internal cam in the movable tooth transmission mechanism are combined into one, and the external convex internal two-phase internal cam rolling is obtained. transmission mechanism, and use this new mechanism to replace the crank-link mechanism in the existing crankshaft-connecting rod type internal combustion engine, and introduce the movable tooth transmission technology into the technical field of internal combustion engines, which not only completely removes the crankshaft and connecting rod, but also integrates the internal combustion engine ) combined into one, a compact and small novel high-power power machine is obtained. Compared with the crankshaft connecting rod type internal combustion engine, the axial dimension of the internal combustion engine of the present invention is greatly reduced.

② There are eight cylinders symmetrically and evenly distributed in a circle around the convex inner two-phase inner cam. The linear reciprocating motion of the cylinder piston through the push rod makes the outer convex inner two-phase inner cam rotate, and the outer convex inner two-phase inner cam transfers the power through the two-phase inner cam. The cam rolling movable tooth transmission is transmitted to the output shaft keyed with the center wheel, and finally the power is output by the output shaft.

③The power output shaft of the internal combustion engine is the output shaft keyed to the center wheel. The two-phase internal cam rolls and moves the movable gear transmission. The external convex internal two-phase internal cam inputs power, the movable gear frame is fixed, and the center wheel outputs, which can realize a large transmission. Compared with the internal combustion engine, it outputs power at low speed and high torque.

④The rotational speed of the output shaft depends on the transmission ratio of the two-phase internal cam rolling movable tooth transmission, and a larger transmission ratio can be obtained by properly selecting the gear matching scheme of the two-phase internal cam rolling movable tooth transmission, and the shock wave is two The difference between the number of teeth Z ₁₂ of the rolling movable teeth and the wave number Z ₁₄ of the center wheel is 2 for the internal cam, no eccentric installation is required, and the whole mechanism is self-balanced under force.

⑤ In the two-phase internal cam rolling movable tooth transmission, the external convex internal two-phase internal cam and the rolling movable tooth are meshed with multiple teeth, so high power and high torque transmission can be realized.

⑥The rolling movable tooth in the two-phase internal cam rolling movable tooth transmission mechanism combines the characteristics of the needle bearing. The axis rolls, the resistance is reduced, and the operation is smooth.

⑦ The moving block of the rolling movable tooth and the moving pin adopt a clearance fit, which not only avoids the jamming phenomenon of the movable tooth frame and the rolling movable tooth, but also reduces the manufacturing precision and reduces the manufacturing cost.

Compared with the existing reciprocating crankshaft connecting rod type internal combustion engine, the present invention has the following beneficial technical effects.

1. Small impact, small vibration, low noise, stable operation

Because the present invention adopts the outward convex internal two-phase internal cam rolling transmission mechanism to replace the crank connecting rod mechanism in the existing crankshaft connecting rod type internal combustion engine, the crankshaft and connecting rod are completely eliminated, and the external convex internal two-phase internal cam and the two-phase internal The cam rolling movable tooth transmission mechanism is all axisymmetric structure, without eccentric mass and unbalanced centrifugal force, which eliminates the inertial force and overturning moment caused by the eccentric mass of the crankshaft and the planar movement of the connecting rod, as well as the resulting impact vibration and noise. Eliminates the vibration and noise caused by the piston slapping the cylinder wall caused by the deflection of the connecting rod.

Eight cylinders are arranged symmetrically and evenly in a circle around the two-phase inner cam with the outer convex inner, and any two cylinders and pistons arranged symmetrically at a distance of 180° are in synchronous working state, that is, either suction at the same time, or compression at the same time, or gas combustion and work at the same time, Or exhaust at the same time. Therefore, the impact force always occurs in pairs, which can cancel each other out, so that the resultant force of the two-phase inner cam on the outside and inside is zero, so the impact vibration is small, so the internal combustion engine runs very smoothly.

2. Compact structure, small size, light weight, small axial dimension

Due to the cancellation of the heavy and complicated crankshaft, each cylinder is distributed symmetrically and uniformly around the two-phase inner cam with outer convex inner, and the two-phase inner cam rolling movable tooth transmission mechanism is built in the inner two-phase inner cam with outer convex inner, and the inner two-phase inner cam with outer convex The inner cam is not only the cam in the cam mechanism, but also the two-phase inner cam in the two-phase inner cam rolling movable tooth transmission mechanism, so the internal combustion engine of the present invention has compact structure, small axial dimension, small volume and light weight.

The invention adopts the power generated by the output piston of the two-phase internal cam rolling transmission mechanism with external convex internal, and combines the internal combustion engine and the speed change device (reducer) into one, without additional deceleration device, and the structure is greatly reduced, so the structure is compact and small.

3. The transmission ratio is relatively large, and the whole machine is integrated with pre-deceleration

The power output shaft of the internal combustion engine is the output shaft keyed to the center wheel. The two-phase internal cam rolls and the movable gear drives the external convex internal two-phase internal cam to input power, the movable gear frame is fixed, and the central wheel outputs. It can achieve a larger transmission ratio, and still maintain many advantages such as compact structure, small mass, and small volume. The internal combustion engine can output power at low speed and high torque, which can be widely used in military and engineering machinery and other fields that require high-power mechanical transmission, such as tanks, armored vehicles, excavators, bulldozers, etc.

4. Small friction and wear, self-balancing force, low fuel consumption, high efficiency and long service life

Because the driving force of the piston is directly transmitted to the external convex internal two-phase internal cam through the push rod roller, and then transmitted to the output shaft for output through the two-phase internal cam rolling movable tooth transmission. The piston push rod and the two-phase inner cam with outer convex inner are connected by rolling friction, the transmission efficiency is high, and the crank connecting rod mechanism with serious wear and large friction power consumption is eliminated. The two-phase internal cam rolling movable tooth transmission is multi-teeth meshing, with large bearing capacity and rolling meshing, which makes the transmission efficiency high. Because the multi-teeth are meshing at the same time, the output rigidity is large, and the transmission is more stable and reliable. At the same time, the convex inner two-phase inner cam can realize the shock wave and ensure the automatic balance of the force of itself and the inner movable teeth. In the transmission device, there is no inertial force, Exciting force and overturning moment, etc., avoid the vibration excitation of the transmission device from the transmission principle, which is conducive to improving the efficiency of the transmission, and its efficiency value can reach 0.95. The mechanical friction and wear are also small, the fuel consumption is low, and the service life of the internal combustion engine is long.

5. Good economy, power and emission indicators

Since the motion law of the piston depends entirely on the external contour curve of the two-phase internal cam with the outer convex inner, the cam profile can be designed by selecting the appropriate piston motion law, and the appropriate piston motion law should make the gas in the cylinder burn fully and perfectly. 1. The utilization rate of fuel heat energy is high. Therefore, the internal combustion engine of the present invention has good power, economy and emission indicators, and can achieve the goals of energy saving, environmental protection and machine efficiency.

6. Simple structure, good manufacturability, low production cost

The parts in the internal combustion engine of the invention have simple structure, good manufacturability and low production cost, and the crankshaft and connecting rod which are complex in structure and difficult to manufacture are completely eliminated.

7. Large carrying capacity

The two-phase internal cam rolling movable tooth transmission is multi-teeth meshing, the transmission is stable, and the rolling movable teeth can share the load together to realize power splitting. Therefore, the internal combustion engine runs smoothly, has a strong ability to resist shock and vibration, and has a large carrying capacity.

specific embodiment

Figures 1 to 5 show an internal-combustion engine with a convex internal two-phase cam rolling transmission, which consists of an exhaust valve (1), a cylinder head (2), a cylinder (3), an intake valve (4), a cylinder block (5), Piston (6), push rod (7), spring (8), roller (9), output shaft (10), convex inner two-phase inner cam (11), rolling movable tooth (12), movable gear rack (13), central wheel (14) etc. are formed. Eight air cylinders (3) are evenly distributed circularly symmetrically around the two-phase inner cam (11) which is convex inside, and the angle between two adjacent air cylinders is 45°. There is a piston (6) in each cylinder (3), one end of the push rod (7) is solidified with the piston (6), and the other end is equipped with a roller (9), and the push rod (7) is connected with the outer convex inner The two-phase internal cams (11) change from sliding friction connection to rolling friction connection through rollers (9). One end of the spring (8) is fixed on the bottom of the piston (6), and the other end is fixed on the protrusion at the bottom of the cylinder (3). On the stage, the effect of the spring (8) is to make the roller (9) on the push rod (7) contact with the two-phase inner cam (11) of the outer convex inner part all the time. The outside of the convex inner two-phase internal cam (11) is a four-phase cam with four bulges that are mutually symmetrical at an angle of 90°, and the inside is a two-phase internal cam composed of double eccentric circles. The convex inner two-phase inner cam (11) organically combines the cam mechanism and the two-phase inner cam rolling movable tooth transmission mechanism as a whole. The outer convex inner two-phase inner cam (11) is not only the cam in the cam mechanism, but also the two-phase inner cam in the two-phase inner cam rolling movable tooth transmission mechanism, and the whole two-phase inner cam rolling movable tooth transmission mechanism is embedded in the The inside of the two-phase inner cam (11) in the outward convex. The two-phase inner cam rolling movable tooth transmission mechanism consists of an outer convex inner two-phase inner cam (11), a rolling movable tooth (12), a movable gear rack (13), a center wheel (14) and a key to the center wheel (14). The connected output shaft (10) is formed. The movable gear frame (13) is fixedly connected with the frame, the center wheel (14) is keyed to the output shaft (10), the rolling movable tooth (12) is connected with the outer convex inner two-phase inner cam (11), and the center wheel (14) Mesh with each other to form a high pair, that is, the outer surface of the sleeve (15) meshes with the two-phase inner cam (11) and the center wheel (14) respectively to form a rolling pair, and the sleeve (15) passes through the needle (16) ) is set on the moving pin (17) and is limited by the big end of the moving pin (17) and the moving block (18) to form a rolling pair with it, the big end of the moving pin (17) and the moving The block (18) can move in the radial guide groove of the movable rack (12) at the same time and form a moving pair with it. The axis lines of parts such as output shaft (10), convex inner two-phase inner cam (11), movable rack (13) and center wheel (14) overlap and are supported by frame bearings. Therefore, the internal combustion engine of the present invention not only has a series of advantages of the two-phase internal cam rolling movable tooth transmission, but also has a very compact structure. The cam profile curve of the outer surface of the two-phase inner cam (11) that is convex and inner can be selected from different curves as required. In this embodiment, the outer surface cam profile curve of the outer convex inner two-phase inner cam (11) is determined according to the cosine acceleration movement law of the piston (6), that is, when the outer convex inner two-phase inner cam (11) rotates at a constant speed, the piston ( 6) Perform reciprocating linear motion according to the cosine acceleration motion law, and its motion cycle is a quarter of the rotation cycle of the external convex internal two-phase internal cam (11). The power output shaft of the internal combustion engine in this embodiment is the output shaft (10) keyed to the center wheel. The two-phase inner cam rolls and moves the movable gear drive to input power from the outer convex inner two-phase inner cam. The movable gear frame is fixed and the center wheel outputs. To achieve a larger transmission ratio, the internal combustion engine can output power at low speed and high torque.

The working principle of the internal combustion engine of the present invention is: when the internal combustion engine is working, the gas burns the piston (6) in the working cylinder, and its driving force acts on the external convex internal two-phase internal cam (11) through the linear reciprocating motion of the push rod (7). , push the outer convex inner two-phase inner cam (11) to rotate counterclockwise, and the power is transmitted from the outer convex inner two-phase inner cam (11) to the output shaft (10) through the two-phase inner cam rolling movable tooth transmission mechanism for output; With the rotation of the convex inner two-phase inner cam (11), the roller (9) rolls along the contour of the outer convex inner two-phase inner cam (11) so that the push rod (7) and the piston (6) that have not done work are in the cylinder ( 3) Sliding inside to complete the task of inhaling, or compressing gas, or exhausting. In Fig. 1, cylinders a and e, b and f, c and g, d and h are each regarded as a group, and there are four groups of cylinders in total. Assume that the pistons in cylinders a and e are at the beginning position of the suction stroke, the pistons in cylinders b and f are at the beginning position of the compression stroke, the pistons in cylinders c and g are at the beginning position of the gas combustion power stroke, and the cylinders d and h are The piston in the cylinder is at the start position of the exhaust stroke, and the stroke process of the pistons of two adjacent groups of cylinders differs by one stroke, corresponding to the phase difference of the rotation angle of the two-phase internal cam (11) which is convex and internal, and is 45°. Then, after the convex internal two-phase internal cam (11) turns counterclockwise by 45°, cylinders b and f start to burn and work again, and after the external convex internal two-phase internal cam turns counterclockwise by 45° again, cylinders a and e start to burn again. Combustion works, cylinders a and e complete the combustion work, then cylinders d and h start to burn work, and then it is the turn of cylinders c and g to burn work, and so on, so that the two-phase inner cam (11) with convex and inner two phases continues smoothly In operation, the inner surface of the two-phase inner cam, which is convex and inner, pushes the rolling movable tooth (12) to move, and the rolling movable tooth (12) moves in the radial guide groove of the movable gear frame (13) and is restrained by the movable gear frame. Mesh with the center wheel (14), drive the center wheel (14) to rotate, and then output the power and motion continuously and smoothly through the output shaft keyed with the center wheel (14). Since the two cylinders in each group of cylinders are symmetrically arranged 180° apart, and the working conditions are the same at any time, the combined effect of the eight pistons (6) on the outer convex inner two-phase inner cam (11) is: outer convex inner two-phase inner Cam (11) is only subjected to the effect of pure force couple, and resultant force is zero. Because the two-phase internal cam (11) with convex interior and the two-phase internal cam rolling movable tooth transmission mechanism not only have structural symmetry, but also the force is symmetrical, so their resultant force is zero, and they are only acted by force couples. Therefore, the impact vibration of the internal combustion engine of the present invention is small, and the movement is stable.

In order to illustrate the speed change characteristics of the internal combustion engine of the present invention, it is assumed that the number of teeth Z ₁₂ of the rolling movable tooth (12) = 10, the wave number Z ₁₄ of the center wheel (14) = 12, and the rotational speed of the two-phase internal cam (11), which is convex and internal, is . Movable rack (13) is fixed ( ), then the transmission ratio of the two-phase internal cam rolling movable gear transmission is:

so get r/min, it can be seen that the steering of the center wheel (14) and the output shaft (10) is the same as that of the convex inner two-phase internal cam (11), but the speed is much lower than that of the outward convex inner two-phase internal cam (11). The deceleration output power can realize the output of high torque and low speed. This feature is especially suitable for occasions with high torque output, and can be widely used in military and construction machinery fields that require high-power mechanical transmission, such as tanks, armored vehicles, excavators, bulldozers, etc.

The internal combustion engine of this embodiment is also provided with a starting system, an air distribution system, a lubricating system, an oil supply system, a cooling system, and the like.

Claims (4)

1. in evagination, two-phase cam rolls and moves transmission internal combustion engine, by exhaust valve (1), cylinder head (2), cylinder (3), intake valve (4), cylinder body (5), piston (6), push rod (7), spring (8), roller (9), output shaft (10), two-phase cam ring (11) in evagination, roll and move oscillating tooth (12), movable teeth rack (13), central gear (14) and starting system, gas distribution system, cooling system, oil supply system, lubrication system forms, it is characterized in that: symmetrical uniform eight cylinders (3) of the peripheral circular of two-phase cam ring (11) in evagination, in evagination, two-phase cam ring rolls and moves the rotary motion that the linear reciprocating motion of piston is changed into output shaft by driving mechanism---and cylinder piston (6) makes two-phase cam ring (11) in evagination rotate by the straight reciprocating motion of push rod (7), in evagination, power rolls through two-phase cam ring and moves Oscillating Tooth Gear Reducer and pass to and the output shaft of central gear key connecting (10) by two-phase cam ring, last power is exported by output shaft (10), in evagination, internal-combustion engine and two-phase cam ring roll and move Oscillating Tooth Gear Reducer and organically combine together by two-phase cam ring (11), make internal-combustion engine without the need to being equipped with retarder again, in above-mentioned evagination, two-phase cam ring rolls and moves driving mechanism and rolled by cam mechanism and two-phase cam ring and move movable tooth drive mechanism and organically combine, wherein cam mechanism is by push rod (7), two-phase cam ring (11) in evagination, cylinder body (5), spring (8) forms, one end of push rod and piston (6) are fixedly connected, the other end is equipped with roller (9), roller (9) make push rod (7) with in evagination between two-phase cam ring (11) for rolling friction connects, roller (9) on push rod (7) contacts with two-phase cam ring (11) in evagination all the time due to the effect of spring (8), two-phase cam ring roll move movable tooth drive mechanism by two-phase cam ring (11) in evagination, roll and move oscillating tooth (12), movable teeth rack (13), central gear (14) and form with the output shaft (10) of its key connecting, and in output shaft (10), evagination, the shaft axis of two-phase cam ring (11), movable teeth rack (13) and central gear (14) four parts overlaps and is supported by rack bearing, rolls the tooth number Z of moving oscillating tooth ₁₂with the wave number Z of central gear (14) ₁₄difference is 2, and movable teeth rack (13) and frame connect firmly, central gear (14) and output shaft (10) key connecting, above-mentioned rolling is moved oscillating tooth (12) and is made up of rolling assembly and moving assembly two-part, wherein rolling assembly is made up of sleeve (15) and needle roller (16), moving assembly is by mobile pin (17), moving block (18) forms, rolling assembly is moved the large end of pin (17) and moving block (18) is limited on mobile pin (17), and form revolute pair with mobile pin (17), the large end of moving block (18) and mobile pin (17) can move and form sliding pair with movable teeth rack (13) in the radial guide groove of movable teeth rack (13), outer cylinder surface and the two-phase cam ring (11) in evagination and central gear (14) of sleeve (15) are meshed each composition rolling pair respectively, moving block (18) and mobile pin (17) Spielpassung, so that the radial guide groove of the large end of mobile pin (17) and moving block (18) energy self adaption movable teeth rack, avoid occurring stuck phenomenon, output shaft rotating speed depends on that two-phase cam ring rolls the velocity ratio moving Oscillating Tooth Gear Reducer, and suitably select two-phase cam ring to roll to move Oscillating Tooth Gear Reducer join tooth scheme, larger velocity ratio can be obtained, low-speed big can be realized and export.

2. in evagination according to claim 1, two-phase cam rolls and moves transmission internal combustion engine, it is characterized in that: in above-mentioned evagination, the outside of two-phase cam ring (11) has mutual angle in 90 ° and four phase cams of four projections of axle center symmetry, inside is two eccentric circles or oval two-phase cam ring, therefore two-phase cam ring (11) is the cam in cam mechanism in evagination, be again that two-phase cam ring rolls the two-phase cam ring moved in movable tooth drive mechanism, whole two-phase cam ring rolls and moves the inside that movable tooth drive mechanism is embedded in two-phase cam ring (11) in evagination.

3. in evagination according to claim 1 and 2, two-phase cam rolls and moves transmission internal combustion engine, it is characterized in that: above-mentioned internal-combustion engine, symmetrical uniform eight cylinders (3) of the peripheral circular of two-phase cam ring (11) in evagination, wherein any two the 180 ° of cylinder piston be arranged symmetrically with (6) working staties of being separated by are synchronous, using synchronous for working state two cylinder pistons as one group, four groups of cylinder pistons carry out suction stroke successively, compression stroke, gaseous combustion expansion stroke and exhaust stroke, the stroke of piston process of two adjacent groups cylinder is 45 ° corresponding to the phase difference of two-phase cam ring (11) corner in evagination, cylinder piston (6) makes two-phase cam ring (11) in evagination rotate by the straight reciprocating motion of push rod (7), in evagination, power rolls through two-phase cam ring and moves Oscillating Tooth Gear Reducer and pass to and the output shaft of central gear key connecting (10) by two-phase cam ring, last power is exported by output shaft (10).

4. in evagination according to any one of claim 1 to 2, two-phase cam rolls and moves transmission internal combustion engine, it is characterized in that: two-phase cam ring rolls and moves in Oscillating Tooth Gear Reducer, in evagination two-phase cam ring (11) with roll that to move oscillating tooth be multiple tooth engagement, therefore transmission that is high-power, high pulling torque can be realized.