CN103061881A - Oscillating transmission internal combustion engine comprising convex inner cam with optional inner tooth differences - Google Patents

Abstract

The utility model relates to an oscillating transmission internal-combustion engine with a cam with arbitrary tooth difference inside and outside convex, relates to the field of gas power, and belongs to the multi-cylinder internal combustion engine. The invention provides a new type of internal combustion engine. Eight cylinders are symmetrically and evenly distributed around the outer convex inner multi-phase inner cam, so that the resultant force on the outer convex inner multi-phase inner cam is zero, and the cylinder piston directly acts on the outer convex inner multi-phase inner cam through the push rod. On the inner cam, the power is transmitted from the outer convex inner multi-phase inner cam to the output shaft keyed with the central gear through the swing movable tooth transmission of the inner cam with any tooth difference. The internal combustion engine omits the connecting rod and crankshaft in the traditional internal combustion engine, and its external convex internal multi-phase internal cam shock wave swing transmission mechanism has no eccentric mass, and has the characteristics of inertial force and working load self-balancing. The rotation speed of the output shaft depends on the transmission ratio of the movable gear transmission. If the movable gear frame is fixed, the central gear will output high torque at low speed, which can be widely used in construction machinery and armored vehicles that require high power. The internal combustion engine has simple and compact structure, small axial dimension, self-balanced force, and stable operation.

Description

Externally convex and internally arbitrary tooth difference cam oscillating transmission internal combustion engine

technical field

The invention relates to the field of gas power, more specifically, a cam swing transmission internal combustion engine with an outer convex inner arbitrary tooth difference.

Background technique

At present, a general internal combustion engine (engine) is composed of a body, a crank connecting rod mechanism, a gas distribution mechanism, a cooling system, a lubrication system, a fuel system, and an ignition system. stroke. The transmission mechanism of this type of internal combustion engine uses a crank-connecting rod mechanism, which transmits the power of the piston to the crankshaft through the connecting rod, and converts the reciprocating linear motion of the piston into the rotary motion of the crankshaft. Because this kind of internal combustion engine relies on the linear motion of the piston and the planar motion of the connecting rod to compress and drive the crankshaft to perform rotational motion, resulting in relatively large friction between the kinematic pairs, resulting in low transmission efficiency of the internal combustion engine. These existing crankshaft connecting rod type internal combustion engines also have the following main disadvantages: large volume; the unbalanced centrifugal force on the connecting rod and the crankshaft is relatively large; the impact is large and the vibration is large; and thus cause large mechanical wear and shorten the life of the internal combustion engine; The structure is complicated, and processing, manufacturing, and assembly are relatively difficult; in addition, the internal combustion engine and the transmission device are usually two independent machines, and the internal combustion engine needs to be equipped with a transmission for subsequent speed change, resulting in a large volume.

Contents of the invention

The object of the present invention is: in order to overcome the above-mentioned shortcomings 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—cam swing transmission internal combustion engine with external convex internal arbitrary tooth difference.

The technical solution adopted by the present invention to solve the technical problem is: a cam swing transmission internal combustion engine with any tooth difference between the outer convex and inner, mainly composed of intake valve (1), cylinder head (2), cylinder (3), exhaust Door (4), cylinder body (5), piston (6), push rod (7), roller (8), spring (9), output shaft (10), multi-phase inner cam with outer convex inner (11), movable tooth (12), movable tooth frame (13), movable tooth column pin (14), central gear (15) and starting system, gas distribution system, cooling system, oil supply system, lubrication system, etc., it is characterized in that: Eight cylinders (3) are distributed symmetrically around the convex inner multi-phase inner cam (11), and the outer convex inner multi-phase inner cam shock wave swing transmission mechanism converts the reciprocating linear motion of the piston into the rotary motion of the output shaft—— The cylinder piston (6) directly acts on the convex inner multi-phase inner cam (11) through the push rod (7), driving the outer convex inner multi-phase inner cam (11) to rotate, and the outer convex inner multi-phase inner cam (11) The inner surface profile pushes the movable tooth (12) to swing around the movable tooth pin (14) fixed on the movable tooth frame, and the movable tooth frame (13) is fixedly connected with the frame, so the movable tooth is under the constraint of the movable tooth frame Engaging with the central gear (15) and forcing the central gear (15) to rotate, the central gear (15) transmits power to the output shaft (10) through a key coupling to realize high-speed output.

In the above technical solution, the external convex internal multi-phase internal cam shock wave swing transmission mechanism is formed by the organic combination of a cam mechanism and an internal cam swing movable tooth transmission mechanism with any tooth difference. Among them, the cam mechanism is composed of a piston (6), a push rod (7), a roller (8), an outer convex inner multi-phase inner cam (11), a cylinder body (5), and a spring (9). The push rod (7) One end is fixedly connected with the piston (6), and the other end is equipped with a roller (8). The roller (8) makes the push rod (7) and the convex inner multi-phase inner cam (11) be connected by rolling friction, and the spring (9) One end is fixed under the piston (6), and the other end is fixed on the boss at the bottom of the cylinder (3). The spring (9) keeps the roller (8) on the push rod (7) in line with the outer convex inner multi-phase inner cam ( 11) Contact, each cylinder is equipped with piston, push rod with roller and spring.

The internal cam oscillating movable tooth transmission mechanism with any tooth difference is composed of an externally convex internal multi-phase internal cam (11), a movable tooth (12), a movable tooth rack (13), a movable tooth pin (14), a central gear (15) and its The output shaft (10) of coupling is formed. The outer surface of the outer convex inner multi-phase inner cam (11) is a four-phase convex profile, and the inner part is a multi-phase inner cam, that is, the inner part is a three-phase inner cam with three mutually symmetrical convex parts at an angle of 120°. The cam itself is completely balanced in mass, and its contour curve is a cosine curve. Therefore, the convex inner multi-phase inner cam (11) is not only a cam in the cam mechanism, but also a multi-phase inner cam in any tooth difference inner cam swing movable tooth transmission mechanism. Cam, the entire arbitrary tooth difference inner cam swing movable tooth transmission mechanism is built in the inside of the outer convex inner multiphase inner cam (11), and the outer convex inner multiphase inner cam (11) drives the internal combustion engine and the inner cam with any tooth difference. The two are organically combined into one, so that the gas turbine does not need to be equipped with a reducer.

和中心齿轮的波数

相差为3，活齿架（13）与机架固联，中心齿轮（15）与输出轴（10）键联接，活齿柱销（14）周向均布并固定在活齿架（13）上，活齿（12）与活齿柱销（14）组成转动副，活齿（12）在绕活齿柱销（14）摆动的同时与外凸内多相内凸轮（11）、中心齿轮（15）分别相啮合各形成一个高副。在任意齿差内凸轮摆动活齿传动中，外凸内多相内凸轮的内轮廓与活齿为多齿啮合，故可实现大功率、大扭矩的传动。 The cam profile curve of the outer surface of the outer convex inner multi-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 multi-phase inner cam (11), movable rack (13) and central gear (15) overlap and are supported by frame bearings. Active teeth

and the wavenumber of the central gear

The phase difference is 3, the movable gear frame (13) is fixedly connected with the frame, the central gear (15) is keyed with the output shaft (10), and the movable tooth column pins (14) are evenly distributed in the circumferential direction and fixed on the movable gear frame (13). The movable tooth (12) and the movable tooth pin (14) form a rotating pair, and the movable tooth (12) is connected with the external convex internal multi-phase internal cam (11), the central gear (15) while swinging around the movable tooth pin (14). ) are meshed with each other to form a high pair. In the swinging movable tooth transmission of the inner cam with any tooth difference, the inner contour of the convex inner multi-phase inner cam and the movable teeth are multi-teeth meshing, so it can realize the transmission of high power and high torque.

In the above technical solution, the outside of the convex inner multi-phase internal cam (11) is a four-phase cam with four mutually symmetrical protrusions at an angle of 90°, and the outer convex inner multi-phase internal cam (11) ) around the circular symmetrical distribution of eight cylinders (3), in which any two cylinder pistons (6) that are symmetrically arranged at a distance of 180° are in synchronous working state, and the two cylinder pistons in synchronous working state are regarded as a group, and four groups of cylinder pistons Suction stroke, compression stroke, gas combustion power stroke and exhaust stroke are performed in sequence, and the piston stroke process of two adjacent groups of cylinders corresponds to a phase difference of 45° in the rotation angle of the externally convex internal multi-phase internal cam (11).

In the above technical solution, the rotational speed of the output shaft depends on the transmission ratio of the cam oscillating movable tooth transmission within any tooth difference, and by properly selecting the gear matching scheme of the cam oscillating movable tooth transmission within any tooth difference, a larger transmission ratio can be obtained. Realize high torque output at low speed.

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

① There are eight cylinders arranged symmetrically and evenly around the outer convex inner multi-phase inner cam. The cylinder piston drives the outer convex inner multi-phase inner cam to rotate through the linear reciprocating motion of the push rod, and the outer convex inner multi-phase inner cam transfers the power through any tooth difference. The inner cam oscillating movable tooth transmission is transmitted to the output shaft keyed with the central gear, and finally the power is output by the output shaft. the

②The exterior of the external convex internal multi-phase internal cam is a four-phase cam with four protruding parts forming an angle of 90° with each other, and the interior is a multi-phase internal cam, that is, the interior is a four-phase cam with three mutual angles of 120° and the axis center The three-phase inner cam with a symmetrical protruding part, the inner cam swing movable tooth transmission mechanism with any tooth difference is built into the inner multi-phase inner cam of the outer convex inner cam, that is, it is built into the cam of the cam mechanism, so that the cam and the cam in the cam mechanism The multi-phase internal cams in the internal cam oscillating movable tooth transmission mechanism with any tooth difference are combined into one to obtain a convex internal multiphase internal cam shock wave oscillating transmission mechanism, and this new mechanism is used to replace the crank in the existing crankshaft-connecting rod type internal combustion engine The connecting rod mechanism introduces the movable tooth transmission technology into the technical field of internal combustion engines, not only completely eliminates the crankshaft and connecting rod, but also combines the internal combustion engine and the speed change device (reducer) into one, and obtains a new type of high-power motor with compact structure and small size. As for the power machine, 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.

③The power output shaft of the internal combustion engine is the output shaft keyed to the central gear. The internal cam swings with any tooth difference and the movable gear drives the external convex internal multi-phase internal cam to input power. 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 cam oscillating movable gear transmission within any tooth difference, and by properly selecting the gear matching scheme of the cam oscillating movable tooth transmission within any tooth difference, a larger transmission ratio can be obtained, and the shock wave is more In-phase cam, number of active teeth and the wavenumber of the central gear The phase difference is 3, no eccentric installation is required, and the whole mechanism is self-balanced under force.

⑤In the swinging movable tooth transmission of the inner cam with any tooth difference, the outer convex inner multi-phase inner cam and the movable teeth are meshed with multiple teeth, so the transmission of high power and high torque can be realized.

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

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

Since the present invention adopts the external convex internal multiphase internal cam shock wave swing 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, the external convex internal multiphase internal cam and any tooth Differential cam oscillating movable tooth transmission mechanisms are all axisymmetric structures, without eccentric mass and unbalanced centrifugal force, eliminating 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 , eliminating the vibration and noise caused by the piston slapping the cylinder wall caused by the deflection of the connecting rod; there are eight cylinders symmetrically distributed in a ring around the external convex internal multi-phase internal cam, and any two cylinders and pistons arranged symmetrically at 180° apart work The states are synchronous, that is, the gas burns to do work at the same time, or exhausts at the same time, or inhales at the same time, or compresses at the same time. Therefore, the impact forces always appear in pairs and can cancel each other out, so that the resultant force on the external convex internal multi-phase internal cam is Zero, so the impact vibration is small, so the internal combustion engine runs smoothly.

2. Small size, light weight, small axial dimension, compact structure

Due to the cancellation of the heavy and complicated crankshaft, each cylinder is distributed symmetrically and evenly around the outer convex inner multi-phase inner cam, and the inner cam swing movable tooth transmission mechanism with any tooth difference is built in the outer convex inner multi-phase inner cam, and the outer convex inner multi-phase The inner cam is not only the cam in the cam mechanism, but also the multi-phase inner cam in the swinging movable tooth transmission mechanism of the inner cam with arbitrary tooth difference, so the internal combustion engine of the present invention has compact structure, small axial dimension, small volume and light weight; the present invention adopts The external convex internal multi-phase internal cam shock wave swing transmission mechanism outputs the power generated by the piston, which combines the internal combustion engine and the transmission device (reducer) into one, without the need for an additional reduction 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 an output shaft keyed to the central gear. The internal cam swings with any tooth difference and the movable gear drives the external convex internal multi-phase internal cam to input power. The movable gear frame is fixed and the central gear is output. It can achieve a larger transmission ratio, and still maintain many advantages such as compact structure, small mass, and small volume. Internal combustion engines output power at low speed and high torque, and can be widely used in construction machinery, military, national defense and other fields that require high power, such as excavators, bulldozers, tanks, armored vehicles, 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 multi-phase internal cam through the push rod roller, and then transmitted to the output shaft output through the swinging movable tooth transmission of the internal cam with any tooth difference. The piston push rod and the convex inner multi-phase inner cam 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 internal cam swing movable tooth transmission with any tooth difference is multi-teeth meshing and has a large load-carrying capacity. Because multiple teeth mesh at the same time, the output rigidity is large, and the transmission is more stable and reliable. At the same time, the convex and internal multi-phase internal cam can realize and ensure the automatic balance of the force of itself and its internal 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 transmission efficiency, and its efficiency value can reach more than 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 movement law of the piston depends entirely on the external contour curve of the multi-phase internal cam with the outer convex interior, the cam profile can be designed by selecting the appropriate piston movement law, and the appropriate piston movement law should make the gas in the cylinder fully and perfectly combustible. 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. the

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 internal cam swing movable tooth transmission with any tooth difference is multi-teeth meshing, the transmission is stable, and the 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. the

Description of drawings

The present invention will be further described below in conjunction with drawings and embodiments. However, it should be pointed out that the specific implementation modes of the present invention are not limited to the forms described in the following examples, and those skilled in the art can easily design other specific implementation modes without paying creative efforts. Therefore, the examples of specific implementations given below should not be understood as the protection scope of the present invention, and the protection scope of the present invention is limited to the given examples.

Fig. 1 is a schematic diagram of the structure of an internal combustion engine with an oscillating internal combustion engine with a convex internal arbitrary tooth difference cam.

Fig. 2 is a schematic diagram of a swinging movable tooth transmission mechanism of an outer convex inner multi-phase inner cam and an inner cam with any tooth difference.

The identification objects of the pictorial symbols in the above drawings are: 1 intake valve; 2 cylinder head; 3 cylinder; 4 exhaust valve; 5 cylinder block; 6 piston; 7 push rod; 8 roller; 9 spring; 10 output shaft ; 11 protruding inner multi-phase internal cam; 12 movable teeth; 13 movable gear rack; 14 movable tooth pins; 

specific embodiment

Figure 1, shown in Figure 2, the cam swing transmission internal combustion engine with any tooth difference inside the outer convex, consists of an intake valve (1), a cylinder head (2), a cylinder (3), an exhaust valve (4), and a cylinder block (5) , piston (6), push rod (7), roller (8), spring (9), output shaft (10), convex inner multi-phase inner cam (11), movable tooth (12), movable gear rack (13 ), active tooth pin (14), central gear (15) and other components. Eight air cylinders (3) are evenly and symmetrically distributed in a circular shape around the outer convex inner multiphase inner cam (11), and the angle between two adjacent air cylinders is 45°. There is a piston (6) in each cylinder (3), and one end of the push rod (7) is fixedly connected with the piston (6), and the other end is equipped with a roller (8), and the roller (8) makes the push rod (7) There is a rolling friction connection between the external convex internal multi-phase internal cam (11), one end of the spring (9) is fixed on the bottom of the piston (6), and the other end is fixed on the boss at the lower part of the cylinder (3). The effect of (9) is to make the roller (8) on the push rod (7) contact with the multi-phase inner cam (11) in the outer convex all the time. The outside of the convex inner multi-phase internal cam (11) is a four-phase cam with four protruding parts that are mutually symmetrical at an angle of 90°, and the inner part is a multi-phase inner cam, that is, the inner part is a four-phase cam with three mutual Three-phase inner cam with 120° included angle and axially symmetrical convex part. The cam mechanism is composed of piston (6), push rod (7), roller (8), multi-phase inner cam (11), cylinder body (5), and spring (9). Cam (11), movable tooth (12), movable gear carrier (13), movable tooth pin (14), central gear (15) and the output shaft (10) keyed with central gear (15) have formed any tooth Differential inner cam swing movable tooth transmission mechanism. The external convex internal multi-phase internal cam (11) organically combines this cam mechanism with the swing movable tooth transmission mechanism of the internal cam with any tooth difference. The externally convex internal multi-phase internal cam (11) is not only the cam in the cam mechanism, but also the multi-phase internal cam in the swing movable tooth transmission mechanism of the internal cam with any tooth difference. The entire internal cam swing movable tooth transmission mechanism with any tooth difference is embedded in The inside of the convex inner polyphase inner cam (11). The movable rack (13) is fixedly connected with the frame, the central gear (15) is keyed to the output shaft (10), the external convex internal multi-phase internal cam (11), the movable rack (13) and the central gear (15), The axis lines of parts such as the output shaft (10) overlap and are supported by the frame bearings. The movable tooth pins (14) are evenly distributed in the circumferential direction and fixed on the movable gear frame (13). The movable teeth (12) and the movable tooth pins ( 14) To form a rotating pair, the movable tooth (12) meshes with the external convex internal multi-phase internal cam (11) and the central gear (15) while swinging around the movable tooth pin (14) to form a high pair. The internal combustion engine of the present invention not only has a series of advantages of internal cam swing movable tooth transmission with arbitrary tooth difference, but also has a very compact structure. The cam profile curve of the outer surface of the multi-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 multiphase inner cam (11) is determined according to the cosine acceleration movement law of the piston (6), that is, when the outer convex inner multiphase inner cam (11) rotates at a constant speed, the piston ( 6) Perform reciprocating linear motion according to the law of cosine acceleration motion, and its motion cycle is a quarter of the rotation cycle of the external convex internal multi-phase internal cam (11). The power output shaft of the internal combustion engine in this embodiment is the output shaft (10) that is keyed to the central gear. The internal cam swings with any tooth difference and the movable tooth drives the external convex internal multi-phase internal cam (11) to input power. The movable gear frame is fixed, and the central gear The output can achieve a larger transmission ratio, and 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 directly acts on the external convex internal multi-phase internal cam (11) through the push rod (7). Push the external convex internal multi-phase internal cam (11) to rotate counterclockwise, and the power is transmitted from the external convex internal multi-phase internal cam (11) to the output shaft (10) through any tooth difference internal cam swing movable tooth transmission mechanism for output; With the rotation of the inner multi-phase inner cam (11), the roller (8) rolls on the contour of the outer convex inner multi-phase inner cam (11), so that the push rod (7) and the piston (6) without work are in the cylinder (3) Slide to complete the stroke of suction, or compressed gas, or exhaust. In Fig. 1, cylinders a and e, b and f, c and g, d and h are each regarded as a group, and a total of four groups of cylinders are obtained. 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 starting position of the exhaust stroke, and the stroke progress of the pistons of two adjacent groups of cylinders differs by one stroke, corresponding to the phase difference of the rotation angle of the multi-phase internal cam (11) which is convex and internal, and is 45°. Then when the outwardly convex internal multiphase internal cam (11) rotates counterclockwise by 45°, cylinders b and f begin to burn and perform work again, and after the externally convex internal multiphase internal cam rotates counterclockwise by 45° again, cylinders a and e start to burn again. Start to burn and do work. After the cylinders a and e complete the combustion and work, cylinders d and h start to burn and do work, and then it is the turn of cylinders c and g to burn and do work. This cycle continues, so that the external convex internal multi-phase internal cam (11) is continuous and stable The multi-phase inner cam profile on the inner surface of the convex inner multi-phase inner cam (11) pushes the movable tooth (12) to swing around the movable tooth pin (14) fixed on the movable tooth frame, and the movable tooth frame (13 ) is fixedly connected with the frame, so the movable tooth meshes with the central gear (15) under the restraint of the movable tooth frame and the movable tooth pin (14), forcing the central gear (15) to rotate, and is connected with the central gear (15 ) The output shaft (10) of the key coupling continuously and smoothly outputs power and motion. 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 multi-phase inner cam (11) is: outer convex inner multi-phase inner Cam (11) is only subjected to the effect of pure force couple, and it is zero by resultant force. Since the externally convex internal multi-phase internal cam (11) and the internal cam swing movable tooth transmission mechanism with any tooth difference not only have structural symmetry, but also the force is symmetrical, so the resultant force they receive is zero and only acts on the force couple. Therefore, the impact vibration of the internal combustion engine of the present invention is small, and the operation is stable.

、中心齿轮（15）的波数

，外凸内多相内凸轮（11）的转速为

。活齿架（13）固定（），则任意齿差内凸轮摆动活齿传动的传动比为： In order to illustrate the speed change characteristics of the internal combustion engine of the present invention, the number of teeth of the movable tooth (12)

, the wave number of the central gear (15)

, the rotational speed of the outer convex inner multi-phase inner cam (11) is

. Movable rack (13) is fixed ( ), then the transmission ratio of the cam swing movable tooth transmission in any tooth difference is:

，可见，中心齿轮（15）、输出轴（10）的转向与外凸内多相内凸轮（11）的相同，转速远远低于外凸内多相内凸轮（11），内燃机减速输出动力，可实现低速大扭矩输出。这种特性适合于需大扭矩输出的场合，可广泛应用于需大功率大扭矩的航空、工程机械等领域，诸如坦克、装甲车和挖掘机、推土机等。 so get

, it can be seen that the rotation of the central gear (15) and the output shaft (10) is the same as that of the convex internal multi-phase internal cam (11), and the rotation speed is much lower than that of the external convex internal multi-phase internal cam (11). The internal combustion engine decelerates and outputs power , can achieve low-speed high-torque output. This feature is suitable for occasions that require high torque output, and can be widely used in aviation and construction machinery that require high power and high torque, 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. Cam swing transmission internal combustion engine with any tooth difference between convex and internal, mainly composed of intake valve (1), cylinder head (2), cylinder (3), exhaust valve (4), cylinder block (5), piston (6 ), push rod (7), roller (8), spring (9), output shaft (10), protruding inner multi-phase inner cam (11), movable tooth (12), movable gear rack (13), movable tooth Composed of column pin (14), central gear (15), air distribution system, starting system, cooling system, oil supply system, and lubrication system, it is characterized in that: it is symmetrically and evenly distributed around the outer convex inner multi-phase inner cam (11) Eight cylinders (3), the external convex internal multi-phase internal cam shock wave swing transmission mechanism converts the reciprocating linear motion of the piston into the rotary motion of the output shaft - the cylinder piston (6) directly reciprocates through the linear reciprocating motion of the push rod (7). Drive the outer convex inner multi-phase inner cam (11) to rotate, the outer convex inner multi-phase inner cam transmits the power to the output shaft (10) keyed to the central gear (15) through the swinging movable tooth transmission of the inner cam with any tooth difference, and finally The power is output by the output shaft (10), and the external convex internal multi-phase internal cam (11) organically integrates the internal combustion engine and the internal cam swing movable tooth transmission with any tooth difference, so that the internal combustion engine does not need to be equipped with a reducer; The internal cam shock wave swing transmission mechanism is composed of a cam mechanism and an internal cam swing movable tooth transmission mechanism with any tooth difference. The cam mechanism is composed of a push rod (7), a piston (6), a roller (8), and a convex The inner multi-phase inner cam (11), the cylinder body (5) and the spring (9) are composed. One end of the push rod (7) is fixedly connected with the piston (6), and the other end is equipped with a roller (8). The roller (8) makes There is a rolling friction connection between the push rod (7) and the outer convex inner multi-phase inner cam (11), and the roller (8) on the push rod (7) is always in contact with the outer convex inner multi-phase inner cam due to the action of the spring (9). The cam (11) is in contact; the internal cam swings with any tooth difference and the movable tooth transmission mechanism is composed of an externally convex internal multi-phase internal cam (11), a movable tooth (12), a movable tooth frame (13), a movable tooth column pin (14), a center The gear (15) is composed of the output shaft (10) which is keyed to it, and the output shaft (10), the external convex internal multi-phase internal cam (11), the movable gear carrier (13) and the central gear (15) are composed of four parts The shaft centers are coincident and supported by the frame bearings, the difference between the number of movable teeth Z ₁₂ and the wave number Z ₁₅ of the central gear (15) is 3, the movable tooth frame (13) is fixedly connected to the frame, and the central gear (15) is connected to the output shaft ( 10) Key connection, the movable tooth pin (14) is evenly distributed in the circumferential direction and fixed on the movable tooth frame (13), the movable tooth (12) and the movable tooth pin (14) form a rotating pair, and the movable tooth (12) is rotating The gear pin (14) meshes with the external convex internal multi-phase internal cam (11) and the central gear (15) while swinging to form a high pair; the external convex internal multi-phase internal cam (11) has a A four-phase cam with four protruding parts that form an included angle of 90° and are axially symmetrical. In-phase cam, its own mass is completely balanced, its contour curve is cosine curve, Therefore, the external convex internal multi-phase internal cam (11) is not only the cam in the cam mechanism, but also the multi-phase internal cam in the swing movable tooth transmission mechanism of the internal cam with any tooth difference. The entire internal cam swing movable tooth transmission mechanism with any tooth difference is built in The inside of the convex inner polyphase inner cam (11). 2. The cam oscillating transmission internal combustion engine according to claim 1, characterized in that: the rotational speed of the output shaft depends on the transmission ratio of the cam oscillating movable gear transmission within any tooth difference, and the internal combustion engine of any tooth difference is properly selected. The tooth matching scheme of the cam oscillating movable tooth transmission can obtain a larger transmission ratio and can realize low-speed and high-torque output. 3. According to claim 1 and claim 2, the externally convex internally arbitrary tooth difference cam oscillating transmission internal combustion engine is characterized in that: in the above-mentioned internal combustion engine, the surrounding of the externally convex internal multi-phase internal cam (11) is circularly and symmetrically distributed with eight Two cylinders (3), in which any two cylinder pistons (6) symmetrically arranged at a distance of 180 degrees are in synchronous working state, and the two cylinder pistons in synchronous working state are regarded as a group, and the four groups of cylinder pistons perform suction stroke and compression stroke in sequence , gas combustion power stroke and exhaust stroke, the piston stroke process of two adjacent groups of cylinders corresponds to the phase difference of the outer convex inner multi-phase inner cam (11) angle of 45°; the cylinder piston (6) passes through the push rod (7) It directly acts on the convex inner multi-phase inner cam (11), driving the outer convex inner multi-phase inner cam (11) to rotate, and the multi-phase inner cam profile on the inner surface of the outer convex inner multi-phase inner cam (11) pushes the movable tooth ( 12) Swing around the movable gear pin (14), and the movable gear frame (13) is fixedly connected with the frame, so the movable tooth meshes with the central gear (15) under the constraint of the movable gear frame and forces the central gear (15) ) rotates, the central gear (15) transmits power to the output shaft (10) through a key coupling to achieve high-speed output. 4. The internal-combustion internal combustion engine with cam oscillating drive with arbitrary tooth difference between outer convex and inner according to claims 1 to 3, characterized in that: in the oscillating movable tooth transmission of inner cam with arbitrary tooth difference, the inner contour of the multi-phase inner cam with outer convex inner is consistent with The movable teeth are multi-teeth meshing, so it can realize the transmission of high power and high torque.

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