Transmission with simple structure and automatic gear shifting device
Technical Field
The invention belongs to the technical field of gearboxes, and particularly relates to a transmission with a simple structure and an automatic gear shifting device.
Background
Along with the continuous improvement of people to driving comfort demand, more and more automobile manufacturers are equipped with automatic transmission to high-end motorcycle type, satisfy different customer demands. In the transmission process of the automatic gearbox, because the gears of the automobile are continuously switched, the speed change mechanism in the automatic gearbox continuously operates, high temperature is easily generated, the speed change mechanism is also easily blocked, and in order to keep the speed change mechanism capable of being continuously and smoothly switched, the speed change mechanism needs to be continuously lubricated and cooled; lubrication in the transmission mechanism is important. In the existing automatic gearbox, the lubricating mechanism is complex, the lubricating effect is poor, and under the condition of poor lubricating effect, the situation that the speed change mechanism is blocked is easy to occur, so that the operation of the speed change mechanism is influenced, and the whole automatic gearbox breaks down.
Disclosure of Invention
The invention provides a transmission with an automatic gear shifting device, which is simple in structure and overcomes the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a transmission with a simple structure and an automatic gear shifting device comprises a shell, wherein a cooling water tank is arranged on one side of the shell, an opening is formed in the top of the shell, a top plate is arranged in the opening, a first limiting plate is arranged on the top of the top plate, a first groove matched with the first limiting plate is formed in the top of the opening, a first cavity and a second cavity are formed in the top plate, the second cavity is arranged below the first cavity, lubricating oil is filled in the first cavity, cooling liquid is filled in the second cavity, a first connecting pipe communicated with the first cavity and a second connecting pipe communicated with the second cavity are arranged on the top plate, a water pump is arranged on the second connecting pipe, and the first connecting pipe and the second connecting pipe are wound on the cooling water tank; before the gearbox is used, lubricating oil is added into the first cavity, cooling liquid is added into the second cavity, when the gearbox is used, the lubricating oil in the first cavity enters the gearbox, so that the lubricating oil drops on the gear and the plectrum to lubricate components in the gearbox, and the cooling liquid separates the gearbox from the first cavity to prevent heat in the gearbox from being transferred into the first cavity to heat the lubricating oil; lubricating oil in the first cavity is in a normal-temperature state under the action of cooling liquid, and lubricating oil drops in the speed changer to lubricate the gear and cool the gear at the same time, so that the internal environment of the speed changer is cooled; under the action of the first connecting pipe and the second connecting pipe, lubricating oil in the first cavity and cooling liquid in the second cavity are communicated to the position of the cooling water tank, and the lubricating oil and the cooling liquid are cooled under the action of the cooling water tank, so that the cooling liquid is prevented from generating heat in long-term use, and the cooling effect of the lubricating oil on the interior of the transmission is ensured; under the mutual cooperation of the cooling liquid and the cooling water tank, the lubricating oil is ensured to be in a room temperature state, potential safety hazards caused by the fact that the temperature of the lubricating oil is increased are avoided, and the use reliability of the transmission is ensured; under the mutual cooperation of opening and roof, make the roof directly pull down from the casing to do the maintenance to the roof, make the direct exposure of parts in the derailleur outside simultaneously, so that parts such as gear are overhauld, reduce derailleur maintenance cost.
A plurality of first through holes are formed in the bottom of the first cavity, the first through holes penetrate through the second cavity, a third connecting pipe matched with the first through holes is arranged in the second cavity, and an infusion tube matched with the third connecting pipe is further arranged in the second cavity; the cooling liquid in the second cavity enters the liquid conveying pipe, the cooling liquid entering the liquid conveying pipe passes through the side part of the third connecting pipe to cool the third connecting pipe, the lubricating oil in the first cavity falls off through the third connecting pipe, the third connecting pipe cools the lubricating oil, and a small part of the lubricating oil in the third connecting pipe is cooled, so that the cooling effect on the lubricating oil is improved, and the cooling effect on the interior of the transmission is facilitated under the action of the lubricating oil; under the action of the liquid conveying pipe, the cooling liquid in the second cavity is in a circulating flow state, so that the cooling effect of the cooling liquid on the lubricating oil is ensured, and the cooling liquid is fully utilized.
The bottom of the top plate is detachably connected with a plurality of atomizing nozzles matched with the first through holes; the bottom of the shell is provided with a liquid collecting groove, the bottom of the liquid collecting groove is provided with a flow guide plate, the flow guide plate is provided with an inclined plane, the bottom of the liquid collecting groove is provided with a through groove, the bottom of the through groove is connected with a fourth connecting pipe, and the fourth connecting pipe is communicated with the first connecting pipe; under the action of the atomizing nozzle, the cooling liquid sprayed out of the first through hole is sprayed into the transmission in a fogdrop mode, so that the coverage of the lubricating oil is improved, the lubricating oil can completely cover the parts in the transmission, and the lubricating effect of the lubricating oil on the gear is ensured; part of spun lubricating oil drops to can the bottom in following first through-hole, makes lubricating oil all drop in the collecting tank, and the lubricating oil in the collecting tank flows along the guiding plate surface, leads to logical groove position department with lubricating oil, makes the lubricating oil that drops in the casing bottom enter into the fourth connecting pipe, and lubricating oil in the fourth connecting pipe enters into first connecting pipe in, makes lubricating oil flow back to first cavity in again behind the cooling water tank, plays the cooling effect to the lubricating oil of retrieving when playing recovery processing to lubricating oil.
The top of the second cavity is provided with a water inlet and a water outlet, the number of the second connecting pipes is two, and the two groups of the second connecting pipes are respectively arranged on the water inlet and the water outlet; a fifth connecting pipe matched with the water inlet hole is arranged on the top plate, the second connecting pipe penetrates through the fifth connecting pipe, a connecting ring is rotatably connected to the fifth connecting pipe, and the connecting ring is connected with the second connecting pipe through threads; when the second connecting pipe is installed, the second connecting pipe is inserted into the fifth connecting pipe, the connecting ring is rotated, and the second connecting pipe is fixed in the connecting ring under the action of the threads, so that the second connecting pipe and the fifth connecting pipe are installed, and the second connecting pipe is connected and matched with the water inlet hole; the cooling liquid flows out of the liquid conveying pipe and then enters the water outlet hole, the cooling liquid enters the second connecting pipe and flows to the cooling water tank through the second connecting pipe, the cooling liquid in the second connecting pipe is cooled under the action of the cooling water tank, the cooled cooling liquid reenters the second cavity from the water inlet hole, the cooling liquid in the second cavity is guaranteed to be in a room temperature state, and the cooling effect of the cooling liquid on lubricating oil is improved.
A first baffle is arranged on the inner wall of the water inlet hole, the first baffle is of a circular ring structure, a sealing plate is rotatably connected to the inner wall of the water inlet hole, and a conical pipe matched with the sealing plate is arranged at the bottom of the second connecting pipe; after the cooling liquid is added into the second cavity, the liquid level rises to the position of the water inlet hole, the sealing plate is pushed to move upwards under the action of liquid buoyancy, the sealing plate is contacted with the first baffle plate, the water inlet hole is sealed under the matching of the first baffle plate and the sealing plate, the cooling liquid is prevented from overflowing from the water inlet hole, and the waste of the cooling liquid is reduced; after the second connecting pipe is inserted into the fifth connecting pipe, the connecting ring is rotated, the second connecting pipe is enabled to move downwards under the threaded fit, the conical pipe at the bottom of the second connecting pipe is contacted with the sealing plate, the sealing plate is pushed to rotate around the connecting point, the water inlet hole is enabled to be in an open state, the second connecting pipe and the second cavity are enabled to be in a conduction state, and therefore cooling liquid can be cooled by moving to the position of the cooling water tank.
A transfusion cavity is formed in the top plate, the first connecting pipe is connected to the transfusion cavity, a first movable cavity is formed in the side wall of the transfusion cavity, a second through hole communicated with the second cavity is formed in the bottom of the first movable cavity, a first rotating wheel is arranged in the first movable cavity, a connecting shaft is arranged at the bottom of the first rotating wheel, a second rotating wheel is arranged at the bottom of the connecting shaft, and the second rotating wheel is arranged in the second cavity; when lubricating oil entered into the infusion intracavity from first connecting pipe, lubricating oil flows in the infusion intracavity, promote first runner rotation under the lubricating oil effect, first runner drives the rotation of second runner, the coolant liquid that drives in the second cavity when the second runner rotates flows, make the coolant liquid in the second cavity be in the motion state that lasts, so that let in the coolant liquid in the infusion tube, make the coolant liquid flow in the infusion tube, guarantee the cooling effect of coolant liquid to lubricating oil, thereby play the cooling effect to derailleur inside through lubricating oil.
A second baffle is arranged in the first cavity, a third through hole matched with the first through hole is formed in the second baffle, a connecting spring is arranged on the side wall of the second baffle, a second movable cavity is arranged on the side wall of the first cavity, the second movable cavity is communicated with the infusion cavity, a connecting plate is arranged on the side wall of the second baffle, a push plate is arranged on the connecting plate, and the push plate is arranged in the infusion cavity; when lubricating oil reenters the first cavity from the first connecting pipe, the lubricating oil flows in the infusion cavity, the push plate is pushed to move when the lubricating oil passes through the infusion cavity, the push plate drives the connecting plate to move, the connecting plate drives the second baffle plate to move, the third through hole is aligned with the first through hole, the lubricating oil in the first cavity enters the first through hole, the lubricating oil is added into the transmission, and the lubricating and cooling effects on the internal parts of the transmission are achieved; when no lubricating oil is conveyed into the first cavity in the first connecting pipe, the third through hole and the first through hole are staggered, the first through hole is sealed by the second baffle, the lubricating oil is stored in the first cavity, and the waste of the lubricating oil is reduced.
The push plate is provided with a fourth through hole, the push plate is also provided with a movable groove, a third baffle matched with the fourth through hole is arranged in the movable groove, the side wall of the third baffle is provided with a sliding block, the inner wall of the movable groove is provided with a sliding groove matched with the sliding block, and the sliding block is provided with a first limiting spring; when lubricating oil enters the infusion cavity, the third baffle is positioned at one end of the movable groove, the third baffle is matched with the fourth through hole, the fourth through hole is closed under the action of the third baffle, and the push plate is pushed to move when the lubricating oil flows in the infusion cavity, so that the push plate drives the second baffle to move, and the first through hole is opened; when the second baffle moves to the position incapable of continuing to move, lubricating oil continues to push the third baffle, the sliding block moves in the sliding groove, the third baffle is separated from the fourth through hole, the lubricating oil enters the other side of the push plate through the fourth through hole, the lubricating oil is added into the first cavity, the lubricating oil is recycled, and the waste of the lubricating oil is reduced.
A through cavity is formed in the first limiting plate, a fixing plate penetrates through the through cavity, a connecting groove matched with the fixing plate is formed in the first groove, a third cavity is formed in the fixing plate, a connecting rod penetrates through the third cavity, threads are formed in the connecting rod, and a thread groove matched with the connecting rod is formed in the bottom of the connecting groove; after the roof was packed into on the casing, inserted the fixed plate and led to the intracavity, in the fixed plate was embedded into the spread groove, rotated the connecting rod, shifted over to the thread groove with the connecting rod under the screw-thread fit in, made thread groove and connecting rod form and be connected the cooperation, under connecting rod and thread groove effect, fixed the fixed plate in the spread groove to play the fixed action to the roof, promote the structural stability of derailleur.
A third movable cavity communicated with the third cavity is arranged on one side of the third cavity, a limiting block is arranged in the third movable cavity, a limiting groove matched with the limiting block is arranged on the inner wall of the connecting groove, a second limiting spring is arranged on the side wall of the limiting block, an annular groove is arranged on the connecting rod, a pressing plate matched with the annular groove is arranged on the connecting rod, an air bag is arranged in the third cavity, and a guide block communicated with the third movable cavity is arranged on the side wall of the air bag; insert the fixed plate and lead to the intracavity back, rotate the connecting rod, the connecting rod is toward the thread groove internal motion, the connecting rod promotes the clamp plate and moves down, clamp plate extrusion gasbag makes the gasbag take place deformation, crowd into the third activity intracavity with the air in the gasbag, push the stopper under the atmospheric pressure effect and move toward the third activity extraluminal, make the stopper imbed into the spacing inslot, further promote the cooperation effect of fixed plate and spread groove, with the stable fixing of roof on the casing, guarantee the stability of derailleur structure.
The invention has the following advantages: when the transmission is used, lubricating oil in the first cavity enters the transmission case, so that the lubricating oil drops on the gear and the plectrum to lubricate components in the transmission case, and the transmission and the first cavity are separated by cooling liquid to prevent heat in the transmission from being transferred into the first cavity to heat the lubricating oil; lubricating oil in the first cavity is in a normal temperature state under the action of cooling liquid, and lubricating oil drops in the transmission to lubricate the gear and cool the gear at the same time, so that the internal environment of the transmission is cooled.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a first cross-sectional view of the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 2.
FIG. 4 is a second cross-sectional view of the present invention.
Fig. 5 is an enlarged view of fig. 4 at B.
Fig. 6 is an enlarged view of fig. 4 at C.
Fig. 7 is a third schematic cross-sectional view of the present invention.
Fig. 8 is an enlarged view of fig. 7 at D.
Fig. 9 is an enlarged view of fig. 7 at E.
Fig. 10 is a cross-sectional view of the fourth embodiment of the present invention.
Fig. 11 is an enlarged view of fig. 10 at F.
Fig. 12 is a cross-sectional view illustrating a fifth embodiment of the present invention.
Detailed Description
As shown in fig. 1 to 12, a transmission with simple structure and an automatic gear shifting device comprises a housing 1, wherein a cooling water tank is arranged on one side of the housing 1, the cooling water tank has the same structure as that of a cooling water tank in an automobile in the prior art, an opening is arranged at the top of the housing 1, a top plate 2 is arranged in the opening, a first limiting plate is arranged at the top of the top plate 2, a first groove matched with the first limiting plate is arranged at the top of the opening, a first cavity and a second cavity are arranged on the top plate 2, the second cavity is arranged below the first cavity, lubricating oil is filled in the first cavity, cooling liquid is filled in the second cavity, an oil inlet hole is arranged at the top of the first cavity, a sealing door 21 is arranged in the oil inlet hole, the lubricating oil enters the first cavity through the oil inlet hole, a first connecting pipe communicated with the first cavity and a second connecting pipe 4 communicated with the second cavity are arranged on the top plate 2, the first connecting pipe and the second connecting pipe 4 are wound on the cooling water tank; before the gearbox is used, lubricating oil is added into the first cavity, cooling liquid is added into the second cavity, when the gearbox is used, the lubricating oil in the first cavity enters the gearbox, so that the lubricating oil drops on the gear and the plectrum to lubricate components in the gearbox, and the cooling liquid separates the gearbox from the first cavity to prevent heat in the gearbox from being transferred into the first cavity to heat the lubricating oil; lubricating oil in the first cavity is in a normal-temperature state under the action of cooling liquid, and lubricating oil drops in the speed changer to lubricate the gear and cool the gear at the same time, so that the internal environment of the speed changer is cooled; under the action of the first connecting pipe and the second connecting pipe, lubricating oil in the first cavity and cooling liquid in the second cavity are communicated to the position of the cooling water tank, and the lubricating oil and the cooling liquid are cooled under the action of the cooling water tank, so that the cooling liquid is prevented from generating heat in long-term use, and the cooling effect of the lubricating oil on the interior of the transmission is ensured; under the mutual cooperation of the cooling liquid and the cooling water tank, the lubricating oil is ensured to be in a room temperature state, potential safety hazards caused by the fact that the temperature of the lubricating oil is increased are avoided, and the use reliability of the transmission is ensured; under the mutual cooperation of opening and roof, make the roof directly pull down from the casing to do the maintenance to the roof, make the direct exposure of parts in the derailleur outside simultaneously, so that parts such as gear are overhauld, reduce derailleur maintenance cost.
A plurality of first through holes are formed in the bottom of the first cavity, the first through holes penetrate through the second cavity, a third connecting pipe matched with the first through holes is arranged in the second cavity, and an infusion tube 29 matched with the third connecting pipe is further arranged in the second cavity; the cooling liquid in the second cavity enters the liquid conveying pipe, the cooling liquid entering the liquid conveying pipe passes through the side part of the third connecting pipe to cool the third connecting pipe, the lubricating oil in the first cavity falls off through the third connecting pipe, the third connecting pipe cools the lubricating oil, and a small part of the lubricating oil in the third connecting pipe is cooled, so that the cooling effect on the lubricating oil is improved, and the cooling effect on the interior of the transmission is facilitated under the action of the lubricating oil; under the action of the liquid conveying pipe, the cooling liquid in the second cavity is in a circulating flow state, so that the cooling effect of the cooling liquid on the lubricating oil is ensured, and the cooling liquid is fully utilized.
The bottom of the top plate 2 is detachably connected with a plurality of atomizing nozzles 27 matched with the first through holes; a liquid collecting tank is arranged at the bottom of the shell 1, a guide plate 11 is arranged at the bottom of the liquid collecting tank, an inclined plane is arranged on the guide plate 11, a through groove is arranged at the bottom of the liquid collecting tank, a fourth connecting pipe is connected to the bottom of the through groove and is communicated with the first connecting pipe, and an oil pump is arranged in the first connecting pipe to ensure that lubricating oil flows in the first connecting pipe; under the action of the atomizing nozzle, the cooling liquid sprayed out of the first through hole is sprayed into the transmission in a fogdrop mode, so that the coverage of the lubricating oil is improved, the lubricating oil can completely cover the parts in the transmission, and the lubricating effect of the lubricating oil on the gear is ensured; part of spun lubricating oil drops to can the bottom in following first through-hole, makes lubricating oil all drop in the collecting tank, and the lubricating oil in the collecting tank flows along the guiding plate surface, leads to logical groove position department with lubricating oil, makes the lubricating oil that drops in the casing bottom enter into the fourth connecting pipe, and lubricating oil in the fourth connecting pipe enters into first connecting pipe in, makes lubricating oil flow back to first cavity in again behind the cooling water tank, plays the cooling effect to the lubricating oil of retrieving when playing recovery processing to lubricating oil.
The top of the second cavity is provided with a water inlet and a water outlet, the number of the second connecting pipes 4 is two, and the two groups of the second connecting pipes 4 are respectively arranged on the water inlet and the water outlet; the second connecting pipe connected with the water inlet hole is communicated with the second connecting pipe connected with the water outlet hole; the top plate 2 is provided with a fifth connecting pipe 22 matched with the water inlet hole, the second connecting pipe 4 penetrates through the fifth connecting pipe 22, the fifth connecting pipe 22 is rotatably connected with a connecting ring 23, the connecting ring 23 is connected with the second connecting pipe 4 through threads, and the connecting ring is provided with a push rod so as to push the connecting ring to rotate; when the second connecting pipe is installed, the second connecting pipe is inserted into the fifth connecting pipe, the connecting ring is rotated, and the second connecting pipe is fixed in the connecting ring under the action of the threads, so that the second connecting pipe and the fifth connecting pipe are installed, and the second connecting pipe is connected and matched with the water inlet hole; the cooling liquid flows out of the liquid conveying pipe and then enters the water outlet hole, the cooling liquid enters the second connecting pipe and flows to the cooling water tank through the second connecting pipe, the cooling liquid in the second connecting pipe is cooled under the action of the cooling water tank, the cooled cooling liquid reenters the second cavity from the water inlet hole, the cooling liquid in the second cavity is guaranteed to be in a room temperature state, and the cooling effect of the cooling liquid on lubricating oil is improved.
A first baffle plate 24 is arranged on the inner wall of the water inlet hole, the first baffle plate 24 is of a circular ring structure, a sealing plate 25 is rotatably connected to the inner wall of the water inlet hole, and a conical pipe matched with the sealing plate 25 is arranged at the bottom of the second connecting pipe 4; after the cooling liquid is added into the second cavity, the liquid level rises to the position of the water inlet hole, the sealing plate is pushed to move upwards under the action of liquid buoyancy, the sealing plate is contacted with the first baffle plate, the water inlet hole is sealed under the matching of the first baffle plate and the sealing plate, the cooling liquid is prevented from overflowing from the water inlet hole, and the waste of the cooling liquid is reduced; after the second connecting pipe is inserted into the fifth connecting pipe, the connecting ring is rotated, the second connecting pipe is enabled to move downwards under the threaded fit, the conical pipe at the bottom of the second connecting pipe is contacted with the sealing plate, the sealing plate is pushed to rotate around the connecting point, the water inlet hole is enabled to be in an open state, the second connecting pipe and the second cavity are enabled to be in a conduction state, and therefore cooling liquid can be cooled by moving to the position of the cooling water tank.
A transfusion cavity is arranged on the top plate 2, the first connecting pipe is connected to the transfusion cavity, a first movable cavity is arranged on the side wall of the transfusion cavity, a second through hole communicated with the second cavity is formed in the bottom of the first movable cavity, a first rotating wheel 28 is arranged in the first movable cavity, a connecting shaft is arranged at the bottom of the first rotating wheel 28, a second rotating wheel 281 is arranged at the bottom of the connecting shaft, and the second rotating wheel 281 is arranged in the second cavity; when lubricating oil entered into the infusion intracavity from first connecting pipe, lubricating oil flows in the infusion intracavity, promote first runner rotation under the lubricating oil effect, first runner drives the rotation of second runner, the coolant liquid that drives in the second cavity when the second runner rotates flows, make the coolant liquid in the second cavity be in the motion state that lasts, so that let in the coolant liquid in the infusion tube, make the coolant liquid flow in the infusion tube, guarantee the cooling effect of coolant liquid to lubricating oil, thereby play the cooling effect to derailleur inside through lubricating oil.
A second baffle 26 is arranged in the first cavity, a third through hole matched with the first through hole is formed in the second baffle 26, a connecting spring is arranged on the side wall of the second baffle 26, a second movable cavity is arranged on the side wall of the first cavity, the second movable cavity is communicated with the infusion cavity, a connecting plate is arranged on the side wall of the second baffle 26, a push plate 261 is arranged on the connecting plate, and the push plate 261 is arranged in the infusion cavity; when lubricating oil reenters the first cavity from the first connecting pipe, the lubricating oil flows in the infusion cavity, the push plate is pushed to move when the lubricating oil passes through the infusion cavity, the push plate drives the connecting plate to move, the connecting plate drives the second baffle plate to move, the third through hole is aligned with the first through hole, the lubricating oil in the first cavity enters the first through hole, the lubricating oil is added into the transmission, and the lubricating and cooling effects on the internal parts of the transmission are achieved; when no lubricating oil is conveyed into the first cavity in the first connecting pipe, the third through hole and the first through hole are staggered, the first through hole is sealed by the second baffle, the lubricating oil is stored in the first cavity, and the waste of the lubricating oil is reduced.
A fourth through hole is formed in the push plate 261, a movable groove is further formed in the push plate 261, a third baffle 262 matched with the fourth through hole is arranged in the movable groove, a sliding block is arranged on the side wall of the third baffle 262, a sliding groove matched with the sliding block is formed in the inner wall of the movable groove, and a first limiting spring 263 is arranged on the sliding block; when lubricating oil enters the infusion cavity, the third baffle is positioned at one end of the movable groove, the third baffle is matched with the fourth through hole, the fourth through hole is closed under the action of the third baffle, and the push plate is pushed to move when the lubricating oil flows in the infusion cavity, so that the push plate drives the second baffle to move, and the first through hole is opened; when the second baffle moves to the position incapable of continuing to move, lubricating oil continues to push the third baffle, the sliding block moves in the sliding groove, the third baffle is separated from the fourth through hole, the lubricating oil enters the other side of the push plate through the fourth through hole, the lubricating oil is added into the first cavity, the lubricating oil is recycled, and the waste of the lubricating oil is reduced.
A through cavity is formed in the first limiting plate, a fixing plate 3 penetrates through the through cavity, a connecting groove matched with the fixing plate 3 is formed in the first groove, a third cavity is formed in the fixing plate 3, a connecting rod 31 penetrates through the third cavity, threads are formed in the connecting rod 31, and a threaded groove matched with the connecting rod 31 is formed in the bottom of the connecting groove; after the roof was packed into on the casing, inserted the fixed plate and led to the intracavity, in the fixed plate was embedded into the spread groove, rotated the connecting rod, shifted over to the thread groove with the connecting rod under the screw-thread fit in, made thread groove and connecting rod form and be connected the cooperation, under connecting rod and thread groove effect, fixed the fixed plate in the spread groove to play the fixed action to the roof, promote the structural stability of derailleur.
A third movable cavity communicated with the third cavity is arranged on one side of the third cavity, a limiting block 35 is arranged in the third movable cavity, a limiting groove matched with the limiting block 35 is arranged on the inner wall of the connecting groove, a second limiting spring 351 is arranged on the side wall of the limiting block 35, an annular groove is arranged on the connecting rod 31, a pressing plate 32 matched with the annular groove is arranged on the connecting rod 31, the connecting rod can rotate relative to the pressing plate, an air bag 33 is arranged in the third cavity, a guide block 34 communicated with the third movable cavity is arranged on the side wall of the air bag 33, and a guide cavity is arranged in the guide block; insert the fixed plate and lead to the intracavity back, rotate the connecting rod, the connecting rod is toward the thread groove internal motion, the connecting rod promotes the clamp plate and moves down, clamp plate extrusion gasbag makes the gasbag take place deformation, crowd into the third activity intracavity with the air in the gasbag, push the stopper under the atmospheric pressure effect and move toward the third activity extraluminal, make the stopper imbed into the spacing inslot, further promote the cooperation effect of fixed plate and spread groove, with the stable fixing of roof on the casing, guarantee the stability of derailleur structure.
The top of the connecting rod is provided with a second limiting plate 311, the second limiting plate is rotatably connected with a lantern ring 312, and the fixing plate is provided with a second groove matched with the lantern ring; when the connecting rod needs to be rotated, the lantern ring is turned over, so that the lantern ring is in a vertical state, the connecting rod is rotated, and the connecting rod is connected into the thread groove.
Before the transmission is used, the second connecting pipe is detached from the water inlet, cooling liquid is filled into the second cavity, the sealing door is opened, lubricating oil is added into the first cavity, then the second connecting pipe is arranged at the water inlet, the oil pump and the water pump start to work, the second baffle plate moves to enable the third through hole to be aligned with the first through hole, the lubricating oil in the first cavity falls out of the first through hole, the lubricating oil is sprinkled on the gear, redundant lubricating oil falls at the bottom of the shell and moves towards the first connecting pipe through the fourth connecting pipe, the lubricating oil is cooled through the cooling water tank when flowing in the first connecting pipe, and the lubricating oil reenters into the first cavity under the action of the oil pump; in the coolant liquid in the second cavity entered into the transfer line, the coolant liquid of following the intraductal exhaust of transfer line entered into the outlet port, made the coolant liquid enter into the second connecting pipe in, the coolant liquid enters into the second cavity again after passing through the second connecting pipe motion to coolant tank in, does the cooling to the coolant liquid, guarantees the cooling effect of lubricating oil to the derailleur.
Other parts in the transmission are the same as the structure of the transmission in the prior art, and are not described in detail herein.