Multi-volume chamber cycle engine
Technical Field
The invention relates to the field of internal combustion engines, in particular to a multi-volume chamber circulating engine.
Background
The traditional engine adopts a piston stroke type structure, in the process of converting chemical energy into mechanical energy during fuel combustion, the piston can realize the conversion of the mechanical energy only by certain linear motion, in the process, certain energy can be wasted by the linear motion of the piston, energy loss is caused, various defects exist in the non-conventional engine, the problems of energy output and energy consumption are very large, and the engine is designed to be a multi-volume chamber to recycle.
Disclosure of Invention
The invention aims to provide a multi-volume chamber circulation engine to solve the technical problems, and adopts the following technical scheme for achieving the aim:
the utility model provides a bad engine of many volumes cavity circulation, includes drives main shaft structure, engine top closing cap, combustion chamber structure, engine under cover outward, the center at the engine top closing cap is established to the main shaft structure that drives outward, the top side end at the combustion chamber structure is established to the engine top closing cap, the bottom side end at the combustion chamber structure is established to the engine under cover, the side of engine top closing cap, combustion chamber structure, engine under cover is fixed through clamping screw and fixing bolt, it connects inside the combustion chamber structure to pass the engine top closing cap to drive main shaft structure outward.
On the basis of the technical scheme, the combustion chamber structure comprises cylinder body structure, interior fan piston structure, fuel spray pipe, ignition structure, interior fan piston structure establishes in the inside of cylinder body structure, and interior fan piston structure can be at the structural internal rotation of cylinder body, fuel spray pipe, ignition structure set up side by side, fuel spray pipe, ignition structure establish the leading flank at the cylinder body structure, outer driving spindle structure is connected on interior fan piston structure top side, interior fan piston structure's bottom side is connected on the engine end closing cap.
On the basis of the technical scheme, the external drive main shaft structure comprises an external linkage main shaft structure, an internal linkage gear set and an external linkage gear set, wherein the internal linkage gear set and the external linkage gear set are in symmetrical axes and are connected to two sides of the external linkage main shaft structure, the internal linkage gear set and the external linkage gear set rotate by taking the external linkage main shaft structure as an axis, the bottom ends of the internal linkage gear set and the external linkage gear set are connected to the top side of the inner fan-shaped piston structure, and the internal linkage gear set and the external linkage gear set are not in contact and are opposite in arrangement all the time.
On the basis of the technical scheme, the engine top sealing cover is composed of a main shaft inner cavity shell and a top side fixing sealing plate, the main shaft inner cavity shell is arranged on the top surface of the top side fixing sealing plate, the main shaft inner cavity shell and the top side fixing sealing plate are integrally formed, a connecting shaft hole is formed in the center of the top surface of the main shaft inner cavity shell, an externally-connected main shaft structure penetrates through the connecting shaft hole and can rotate in the connecting shaft hole, connecting bolt holes are formed in four corners of the top side fixing sealing plate, a shell inner embedded groove, a connecting bolt hole and a shaft end groove are formed in the engine bottom sealing cover, the inner embedded groove is formed in the top surface of the engine bottom sealing cover, the connecting bolt holes are formed in the four corners of the engine bottom sealing cover respectively, the shaft end groove is formed in the center of the shell inner embedded groove, the inner fan type piston structure is embedded in the shaft end groove, and the inner fan type piston structure can rotate in the shaft end groove.
On the basis of the technical scheme, the cylinder body structure comprises a cylinder type cylinder wall, heat dissipation wing plates and fixed side columns, the fixed side columns are four groups, the four groups of fixed side columns are arranged on the outer side edges of the cylinder type cylinder wall respectively at equal circumferential angles, the heat dissipation wing plates are symmetrically arranged on two side surfaces of the cylinder type cylinder wall, the fuel spray pipe and the ignition structure are arranged on the front side surface of the cylinder type cylinder wall, the rear side surface of the cylinder type cylinder wall is provided with a smoke exhaust hole, the cylinder type cylinder wall, the heat dissipation wing plates and the fixed side columns are integrally formed, the inner fan type piston structure is arranged on the inner side of the cylinder type cylinder wall, and the inner fan type piston structure can rotate in the cylinder type cylinder wall.
On the basis of the technical scheme, the inner fan type piston structure consists of an inner fan type piston and an outer fan type piston, the inner fan type piston is arranged on the inner side of the outer fan type piston and can rotate on the inner side of the outer fan type piston, the inner side linkage gear set is connected on the inner side of the outer fan type piston, the outer side linkage gear set is connected on the outer side of the inner fan type piston, the inner fan type piston consists of inner side symmetrical piston plates, a piston shaft, a bottom end convex shaft and a top end piston gear, the inner side symmetrical piston plates are provided with two groups, the two groups of inner side symmetrical piston plates are symmetrically arranged on two sides of the piston shaft, the bottom end convex shaft is arranged at the bottom end of the piston shaft, the top end piston gear is arranged at the top end of the piston shaft, and the inner side symmetrical piston plates, the piston shaft, the bottom end convex shaft and the top end piston gear are integrally formed, the outer side of the top end of the piston shaft and the outer surface of the vertical side of the inner side symmetrical piston plate are both provided with wear-resistant sealing rubber strips, a bottom end protruding shaft is embedded in a shaft end groove of the engine bottom sealing cover, the outer side linkage gear set is connected to the outer side of the top end piston gear, the top end of the top end piston gear is provided with a shaft end slot, the bottom end of the external connection spindle structure is inserted in the shaft end slot, the external fan type piston is composed of a top end piston plate, outer side symmetrical piston plates and a top surface piston inner gear, the outer side symmetrical piston plates are provided with two groups, the two groups of outer side symmetrical piston plates are symmetrically arranged on the bottom side surface of the top end piston plate, the top surface piston inner gear is arranged on the edge of the top side surface of the top end piston plate, the outer side symmetrical piston plates and the top surface piston inner gear are integrally formed, the center of the top end piston plate is provided with a butt joint hole, and the piston shaft and the top end piston gear pass through the butt joint hole, the outer edge of the top piston plate, the vertical side outer surface of the outer side symmetric piston plate and the inner surface of the butt joint hole are provided with wear-resistant sealing rubber strips, and the inner side linkage gear set is connected to the inner side of the top piston internal gear.
On the basis of the technical scheme, the externally-connected main shaft structure consists of an inner side anti-falling sleeve frame, an outer side anti-falling sleeve frame and a main shaft part, wherein the inner side anti-falling sleeve frame and the outer side anti-falling sleeve frame are symmetrically sleeved on two sides of the main shaft part, the inner side anti-falling sleeve frame and the outer side anti-falling sleeve frame can rotate on the outer side of the main shaft part, the inner side anti-falling sleeve frame is erected on the top side of the outer side anti-falling sleeve frame, the front side end of the inner side anti-falling sleeve frame is connected to the outer side of the main shaft part, the rear side end of the inner side anti-falling sleeve frame is connected to the top side end of the inner side linkage gear set, the rear side end of the outer side anti-falling sleeve frame is connected to the outer side of the main shaft part, and the main shaft part consists of a spline shaft lever, an anti-falling waist disc, an inner side connecting gear, an outer side connecting gear and an integral retention shaft lever, the spline shaft lever is arranged at the top end of the integrated shaft lever, the retention anti-falling waist disc is arranged at the bottom end of the spline shaft lever and the top end of the integrated shaft lever, the inner side connecting gear is arranged at the top side end of the integrated shaft lever, the outer side connecting gear is arranged at the bottom side end of the integrated shaft lever, the spline shaft lever, the retention anti-falling waist disc, the inner side connecting gear, the outer side connecting gear and the integrated shaft lever are integrally formed, the inner side anti-falling sleeve frame is sleeved on the outer side of the integrated shaft lever, the inner side anti-falling sleeve frame is erected between the retention anti-falling waist disc and the inner side connecting gear, the outer side anti-falling sleeve frame is sleeved on the outer side of the integrated shaft lever, the outer side anti-falling sleeve frame is erected between the inner side connecting gear and the outer side connecting gear, the bottom end of the integrated shaft lever is inserted into the shaft end slot, and the integrated shaft lever can rotate in the shaft end slot.
On the basis of the technical scheme, the inner linkage gear set is composed of an inner driving gear, an inner driven gear and an inner main shaft, the inner driving gear is arranged at the bottom end of the inner main shaft, the inner driven gear is arranged at the top side end of the inner main shaft, the inner driving gear, the inner driven gear and the inner main shaft are integrally formed, the top end of the inner main shaft is connected with the rear end of the inner anti-falling sleeve frame, the inner main shaft can rotate at the rear end of the inner anti-falling sleeve frame, the inner driving gear is connected to the inner side surface of a top piston internal gear, the inner driven gear is connected with an inner connecting gear, the outer linkage gear set is composed of an outer driving gear, an outer driven gear and an outer main shaft, the outer driving gear is arranged at the bottom end of the outer main shaft, the outer driven gear is arranged at the top side end of the outer main shaft, the front end of the outer main shaft is connected with the front end of the outer anti-falling sleeve frame, the outer driving gear is connected to the outer side piston external connecting gear.
On the basis of the technical scheme, the inner cavity shell, the top side fixing sealing plate, the engine bottom sealing cover, the cylindrical cylinder wall, the radiating fin plate and the fixing side column of the main shaft are made of aluminum alloy materials, the inner side symmetric piston plate, the piston shaft, the bottom end protruding shaft, the top end piston gear, the top end piston plate, the outer side symmetric piston plate, the top surface piston internal gear, the inner side anti-falling sleeve frame, the outer side anti-falling sleeve frame, the spline shaft rod, the fixing anti-falling waist disc, the inner side connecting gear, the outer side connecting gear, the integrated shaft rod, the inner side driving gear, the inner side driven gear, the inner side main shaft, the outer side driving gear, the outer side driven gear and the outer side main shaft are made of forged steel materials, and the wear-resistant sealing rubber strip is made of wear-resistant rubber materials.
Compared with the prior art, the invention has the following advantages: the invention optimizes the arrangement of the low-efficiency engine, changes the traditional linear stroke type engine structure, and improves the engine structure into an annular stroke structure, the structure has higher engine utilization rate, reduces energy consumption, can avoid the idle work of the linear stroke, realizes the power output when the engine is driven, improves the utilization efficiency under the same volume compared with the traditional linear stroke engine, has simpler structure, smaller volume, smaller sound and vibration when being driven, is suitable for being applied to various devices needing to be used, has wider application range and is suitable for popularization and use.
Drawings
Fig. 1 is an appearance state diagram of the present invention.
FIG. 2 is a schematic view of the present invention with a split structure.
FIG. 3 is a schematic view of the structure of the combustion chamber of the present invention.
Fig. 4 is a schematic structural diagram of the external drive spindle according to the present invention.
FIG. 5 is a schematic view of the engine top cover and the engine bottom cover of the present invention.
FIG. 6 is a schematic view of the combustion chamber of the present invention with the structure disassembled.
FIG. 7 is a schematic view of the inner fan piston structure of the present invention in disassembled form.
Fig. 8 is a schematic view of the external drive spindle structure according to the present invention.
Fig. 9 is a schematic structural view of the externally-connected spindle of the present invention.
FIG. 10 is a schematic view of the spindle unit of the present invention.
FIG. 11 is a schematic view of the inner and outer side linkage gear sets of the present invention.
In the figure: the structure comprises an external drive main shaft structure 1, an engine top cover 2, a combustion chamber structure 3, an engine bottom cover 4, a cylinder body structure 5, an inner fan-shaped piston structure 6, a fuel spray pipe 7, an ignition structure 8, an external connection main shaft structure 9, an inner linkage gear set 10, an outer linkage gear set 11, a main shaft inner cavity shell 12, a top side fixing sealing plate 13, a connecting shaft hole 14, a connecting bolt hole 15, a shell inner embedded groove 16, a shaft end groove 17, a cylindrical cylinder wall 18, a radiating fin plate 19, a fixing side column 20, a smoke exhaust hole 21, an inner fan-shaped piston 22, an outer fan-shaped piston 23, an inner symmetrical piston plate 24, a piston shaft 25, a bottom end convex shaft 26, a top end piston gear 27, a wear-resistant sealing rubber strip 28, a shaft end inserting groove 29, a top end piston plate 30, an outer symmetrical piston plate 31, a top surface piston internal gear 32, a butt joint hole 33, an inner side sleeve frame 34, an outer side sleeve frame 35, a main shaft parts 36, a spline shaft lever 37, a fixing waist disc 38, an inner side connecting gear 39, an outer side connecting gear 40, an integral shaft rod 41, an inner side driving gear 42, an inner side driven gear 43, an outer side driven gear 44, an outer side fixing screw rod fixing screw 47, an outer side fixing screw 47 and a main shaft fixing screw rod 49.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
The utility model provides a many volumes cavity bad engine, includes that the main shaft structure of driving 1, engine top closing cap 2, combustion chamber structure 3, engine bottom closing cap 4 outward, the main shaft structure of driving 1 establishes in the center of engine top closing cap 2, engine top closing cap 2 establishes the apical side end at combustion chamber structure 3, engine bottom closing cap 4 establishes the basal side end at combustion chamber structure 3, the side of engine top closing cap 2, combustion chamber structure 3, engine bottom closing cap 4 is through fixed, the main shaft structure of driving 1 passes engine top closing cap 2 and connects inside combustion chamber structure 3.
Combustion chamber structure 3 comprises cylinder body structure 5, interior fan piston structure 6, fuel spray pipe 7, ignition structure 8, interior fan piston structure 6 is established in the inside of cylinder body structure 5, and interior fan piston structure 6 can be at 5 internal rotations of cylinder body structure, fuel spray pipe 7, ignition structure 8 set up side by side, fuel spray pipe 7, ignition structure 8 are established at the leading flank of cylinder body structure 5, the main shaft structure 1 that drives outward is connected on 6 top sides of interior fan piston structure, the bottom side of interior fan piston structure 6 is connected on engine undercover 4.
The main shaft structure 1 that drives outward comprises outer antithetical couplet main shaft structure 9, inboard linkage gear train 10, outside linkage gear train 11, inboard linkage gear train 10 and outside linkage gear train 11 are the both sides at outer antithetical couplet main shaft structure 9 of the connection of axis symmetry, inboard linkage gear train 10, outside linkage gear train 11 rotate for the axle center with outer antithetical couplet main shaft structure 9, fan formula piston structure 6's top side including the bottom of inboard linkage gear train 10 and outside linkage gear train 11 is all connected, inboard linkage gear train 10 and outside linkage gear train 11 are contactless all the time and are opposition setting.
The engine top sealing cover 2 is composed of a main shaft inner cavity shell 12 and a top side fixing sealing plate 13, the main shaft inner cavity shell 12 is arranged on the top surface of the top side fixing sealing plate 13, the main shaft inner cavity shell 12 and the top side fixing sealing plate 13 are integrally formed, a connecting shaft hole 14 is formed in the center of the top surface of the main shaft inner cavity shell 12, an externally-connected main shaft structure 9 penetrates through the connecting shaft hole 14, the externally-connected main shaft structure 9 can rotate in the connecting shaft hole 14, connecting bolt holes 15 are formed in four corners of the top side fixing sealing plate 13, a housing inner embedded groove 16, the connecting bolt holes 15 and a shaft end groove 17 are formed in the engine bottom sealing cover 4, the housing inner embedded groove 16 is formed in the top surface of the engine bottom sealing cover 4, the connecting bolt holes 15 are formed in the engine bottom sealing cover 4 respectively, the shaft end grooves 17 are formed in the center of the housing inner embedded groove 16, the inner fan-type piston structure 6 is embedded in the shaft end groove 17, and the inner fan-type piston structure 6 can rotate in the shaft end groove 17.
The cylinder body structure 5 is composed of a cylinder type cylinder wall 18, radiating fins 19 and fixed side columns 20, the fixed side columns 20 are provided with four groups, the four groups of fixed side columns 20 are respectively arranged on the outer side edge of the cylinder type cylinder wall 18 in an equal circumferential angle mode, the radiating fins 19 are symmetrically arranged on the two side faces of the cylinder type cylinder wall 18, the fuel spray pipe 7 and the ignition structure 8 are arranged on the front side face of the cylinder-type cylinder wall 18, the rear side face of the cylinder-type cylinder wall 18 is provided with a flue gas exhaust hole 21, the cylinder-type cylinder wall 18, the heat dissipation fin plate 19 and the fixed side column 20 are integrally formed, the inner fan-type piston structure 6 is arranged on the inner side of the cylinder-type cylinder wall 18, and the inner fan-type piston structure 6 can rotate in the cylinder-type cylinder wall 18.
The inner fan type piston structure 6 is composed of an inner fan type piston 22 and an outer fan type piston 23, the inner fan type piston 22 is arranged on the inner side of the outer fan type piston 23, the inner fan type piston 22 can rotate on the inner side of the outer fan type piston 23, the inner side linkage gear set 10 is connected on the inner side of the outer fan type piston 23, the outer side linkage gear set 11 is connected on the outer side of the inner fan type piston 22, the inner fan type piston 22 is composed of inner side symmetrical piston plates 24, a piston shaft 25, a bottom end convex shaft 26 and a top end piston gear 27, the inner side symmetrical piston plates 24 are provided with two sets, the two sets of inner side symmetrical piston plates 24 are symmetrically arranged on two sides of the piston shaft 25, the bottom end convex shaft 26 is arranged at the bottom end of the piston shaft 25, the top end piston gear 27 is arranged at the top end of the piston shaft 25, the inner side symmetrical piston plates 24, the piston shaft 25, the bottom end convex shaft 26 and the top end piston gear 27 are integrally formed, the outer side of the top end of the piston shaft 25 and the outer surface of the vertical side of the inner side symmetrical piston plate 24 are both provided with a wear-resistant sealing rubber strip 28, the bottom end protruding shaft 26 is embedded in the shaft end groove 17 of the engine bottom sealing cover 4, the outer side linkage gear set 11 is connected to the outer side of the top end piston gear 27, the top end of the top end piston gear 27 is provided with a shaft end insertion groove 29, the bottom end of the outer connection main shaft structure 9 is inserted in the shaft end insertion groove 29, the outer fan type piston 23 is composed of a top end piston plate 30, an outer side symmetrical piston plate 31 and a top surface piston internal gear 32, the outer side symmetrical piston plates 31 are provided with two groups, the two groups of outer side symmetrical piston plates 31 are symmetrically arranged on the bottom side surface of the top end piston plate 30, the top surface piston internal gear 32 is arranged on the edge of the top end piston plate 30, and the top end piston plate 30, the outer side symmetrical piston plate 31 and the top surface piston internal gear 32 are integrally formed, butt joint hole 33 has been seted up at the center of top piston plate 30, piston shaft 25, top piston gear 27 pass butt joint hole 33, the outside edge of top piston plate 30, the upright side external surface of outside symmetry piston plate 31, the internal surface of butt joint hole 33 all are equipped with wear-resisting joint strip 28, inboard linkage gear train 10 is connected in the inboard of top surface piston internal gear 32.
The externally-connected spindle structure 9 is composed of an inner anti-slip sleeve frame 34, an outer anti-slip sleeve frame 35 and a spindle part 36, the inner anti-slip sleeve frame 34 and the outer anti-slip sleeve frame 35 are symmetrically sleeved on two sides of the spindle part 36, the inner anti-slip sleeve frame 34 and the outer anti-slip sleeve frame 35 can rotate outside the spindle part 36, the inner anti-slip sleeve frame 34 is arranged on the top side of the outer anti-slip sleeve frame 35, the front side end of the inner anti-slip sleeve frame 34 is connected to the outer side of the spindle part 36, the rear side end of the inner anti-slip sleeve frame 34 is connected to the top side end of the inner linkage gear set 10, the rear side end of the outer anti-slip sleeve frame 35 is connected to the outer side of the spindle part 36, the front side end of the outer anti-slip sleeve frame 35 is connected to the top side end of the outer linkage gear set 11, the spindle part 36 is composed of a spline 37, a retention anti-slip waist disc 38, an inner connecting gear 39, an outer connecting gear 40 and an integral shaft 41, the spline shaft lever 37 is arranged at the top end of the integral shaft lever 41, the retention anti-falling waist disk 38 is arranged at the bottom end of the spline shaft lever 37 and the top end of the integral shaft lever 41, the inner side connecting gear 39 is arranged at the top side end of the integral shaft lever 41, the outer side connecting gear 40 is arranged at the bottom side end of the integral shaft lever 41, the spline shaft lever 37, the retention anti-falling waist disk 38, the inner side connecting gear 39, the outer side connecting gear 40 and the integral shaft lever 41 are integrally formed, the inner side anti-falling sleeve frame 34 is sleeved at the outer side of the integral shaft lever 41, the inner side anti-falling sleeve frame 34 is arranged between the retention anti-falling waist disk 38 and the inner side connecting gear 39, the outer side anti-falling sleeve frame 35 is sleeved at the outer side of the integral shaft lever 41, the outer side anti-falling sleeve frame 35 is arranged between the inner side connecting gear 39 and the outer side connecting gear 40, the bottom end of the integral shaft lever 41 is inserted in the insertion groove 29, and the integral shaft 41 is rotatable within the shaft-end socket 29.
The inner linkage gear set 10 is composed of an inner driving gear 42, an inner driven gear 43 and an inner main shaft 44, the inner driving gear 42 is arranged at the bottom end of the inner main shaft 44, the inner driven gear 43 is arranged at the top end of the inner main shaft 44, the inner driving gear 42, the inner driven gear 43 and the inner main shaft 44 are integrally formed, the top end of the inner main shaft 44 is connected with the rear end of the inner anti-slip frame 34, the inner main shaft 44 can rotate at the rear end of the inner anti-slip frame 34, the inner driving gear 42 is connected with the inner side surface of the top piston internal gear 32, the inner driven gear is connected with the inner connecting gear 39, the outer linkage gear set 11 is composed of an outer driving gear 45, an outer driven gear 46 and an outer main shaft 47, the outer driving gear 45 is arranged at the bottom end of the outer main shaft 47, the outer driven gear 46 is arranged at the top end of the outer main shaft 47, the top end of the outer main shaft 47 is connected with the front end of the outer anti-slip frame 35, the outer driving gear 45 is connected with the top end of the outer piston internal gear 27, and the outer driven gear 40 is connected with the outer driven gear 40.
The main shaft inner cavity shell 12, the top side fixing sealing plate 13, the engine bottom sealing cover 4, the cylinder type cylinder wall 18, the heat dissipation fin plate 19 and the fixing side column 20 are made of aluminum alloy materials, the inner side symmetric piston plate 24, the piston shaft 25, the bottom end protruding shaft 26, the top end piston gear 27, the top end piston plate 30, the outer side symmetric piston plate 31, the top surface piston internal gear 32, the inner side anti-falling sleeve frame 34, the outer side anti-falling sleeve frame 35, the spline shaft lever 37, the fixing anti-falling waist disc 38, the inner side connecting gear 39, the outer side connecting gear 40, the integrated shaft lever 41, the inner side driving gear 42, the inner side driven gear 43, the inner side main shaft 44, the outer side driving gear 45, the outer side driven gear 46 and the outer side main shaft 47 are made of forged steel materials, and the wear-resistant sealing rubber strip 28 is made of wear-resistant rubber materials.
The working principle of the invention is as follows: the engine utilizes the circular stroke cylinder, can realize higher transmission efficiency under the condition of same energy consumption, in the combustion chamber structure, the structure of the inner fan type piston structure is driven alternately like a fan wheel, specifically, the inner fan type piston and the outer fan type piston can be contacted alternately and separated alternately, in the contact process, adjacent air cavities are combusted and exploded, the air cavities are compressed, the separated process is that the inside of the cylinder is combusted and exploded, the reciprocating mode is realized, the rotation of the inner fan type piston and the outer fan type piston is realized, the inner side linkage gear set and the outer side linkage gear set connected at the top sides of the inner fan type piston and the outer fan type piston can always keep rotating, and thus, the rotation of the top side outer driving main shaft structure is formed.
The operation process specifically comprises the following steps: when a fuel spray pipe sprays a cylinder chamber internal combustion and gas mixture which is just contacted, the cylinder chamber expands to a certain space to the outside, then the ignition structure realizes electric spark ignition, and the combustion explosion of the closed gas chamber is realized, so that the inner side symmetric piston plates and the outer side symmetric piston plates at two sides of the gas chamber are separated from each other, the separation of the inner side symmetric piston plates and the outer side symmetric piston plates causes the rotation of the piston shaft and the top end piston plates, because the inner fan type piston and the outer fan type piston are integrated, the top end piston gear at the top side and the top surface piston internal gear rotate, the inner side linkage gear set connected to the outer side of the top end piston gear and the outer side linkage gear set connected to the inner side of the top surface piston internal gear can obtain the rotating energy, the top side feather straight connected external drive main shaft structure forms the rotating trend, and when the process is repeatedly carried out, the external drive main shaft structure is formed to always keep the rotating operation state.
The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that variations, modifications, substitutions and alterations can be made in the embodiment without departing from the principles and spirit of the invention.