CN117570159A - Variable speed transmission assembly with separation function - Google Patents
Variable speed transmission assembly with separation function Download PDFInfo
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- CN117570159A CN117570159A CN202410053193.0A CN202410053193A CN117570159A CN 117570159 A CN117570159 A CN 117570159A CN 202410053193 A CN202410053193 A CN 202410053193A CN 117570159 A CN117570159 A CN 117570159A
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- assembly
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 127
- 238000000926 separation method Methods 0.000 title claims abstract description 10
- 238000005192 partition Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract 2
- 238000005096 rolling process Methods 0.000 claims description 26
- 238000001125 extrusion Methods 0.000 claims description 21
- 230000001105 regulatory effect Effects 0.000 claims description 17
- 239000002243 precursor Substances 0.000 claims description 14
- 230000008859 change Effects 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
- F16H57/0416—Air cooling or ventilation
Abstract
The invention discloses a variable speed transmission assembly with a separation function, which belongs to the technical field of transmission and comprises an assembly shell, wherein a partition plate is fixedly arranged in the assembly shell in a sealing way and divides the assembly shell into an independent input chamber and an independent output chamber, an input shaft and an adjusting shaft are arranged in the input chamber, a friction shell is slidably sleeved on the input shaft, two ends of the friction shell are respectively matched with two friction inner containers, the two friction inner containers are respectively and coaxially fixedly arranged on two input gears, the two input gears are respectively and coaxially rotatably arranged on the input shaft, the two input gears are respectively matched with one ends of two groups of transmission components, the other ends of the two groups of transmission components are respectively matched with two output gears, and the two output gears are coaxially fixed on the transmission shell. The transmission part is fully integrated inside the assembly shell, so that the transmission assembly has the functions of speed reduction, speed change, clutch and the like, and meanwhile, the structure of the transmission assembly is simplified and miniaturized, and the operation is very convenient.
Description
Technical Field
The invention relates to the technical field of transmission, in particular to a variable speed transmission assembly with a separation function.
Background
In the prior art, most of the transmission assemblies of mobile equipment consist of structures such as clutches, speed changers, differentials and the like. The clutch, the speed changer and the differential mechanism are all independent components, and finally, a complete transmission assembly is assembled, so that the transmission assembly has a complex structure, more parts and larger space occupied in the mobile equipment, and the whole equipment is not beneficial to miniaturization.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a variable speed transmission assembly with a separation function.
The aim of the invention is realized by the following technical scheme:
the utility model provides a take variable speed drive assembly of separation function, includes assembly casing, division board, input shaft, regulating spindle, regulating block, friction shell, friction inner bag and drive casing, division board seal fixation sets up the inside of assembly casing and with the assembly casing is cut apart into independent input room and output room, the input shaft rotates to set up in the input room and with the driving piece outside the assembly casing links to each other, the regulating spindle slides to set up in the input room and with the input shaft parallel arrangement, the one end rotation of regulating block sets up on the regulating spindle and can not slide on the regulating spindle, the middle part rotation of friction shell sets up on the regulating block other end, friction shell slip cap is established on the input shaft and with the coaxial setting of input shaft, evenly be provided with two gibs at least on the outer wall of input shaft, the guide bar is parallel to the axial lead of the input shaft, a guide groove matched with the guide bar is arranged on the inner wall of the friction shell, two ends of the friction shell are respectively matched with the two friction inner containers, the two friction inner containers are respectively and fixedly arranged on the two input gears in a coaxial manner, the friction shell does not drive the two friction inner containers to rotate at the same time, the two input gears are respectively and coaxially arranged on the input shaft, the two input gears are respectively matched with one ends of two groups of transmission components, the other ends of the two groups of transmission components are respectively matched with the two output gears, the two output gears are coaxially fixed on the transmission shell, the transmission shell is rotatably arranged on the inner wall of the output chamber, a front-rear driving speed adjusting component is arranged in the transmission shell, the two groups of transmission components are all rotationally arranged on the separation plate, the two input gears are all arranged on the inner sides of the two groups of transmission components, the two output gears are all arranged on the inner sides of the two groups of transmission components, and the friction inner container and the input gears are not contacted with the guide strips.
Further, one end of the friction inner container is fixedly connected with the input gear in a coaxial mode, an inner spherical convex ring and an inner spherical groove are arranged at the other end of the friction inner container, the inner spherical convex ring is arranged on the outer side of the inner spherical groove and is coaxially arranged with the input shaft, a first circular arc chamfer is arranged between the inner spherical convex ring and the inner spherical groove, outer spherical grooves matched with the inner spherical convex ring are formed in two ends of the friction outer shell, an outer spherical end matched with the outer spherical groove is arranged in the outer spherical groove, and a second circular arc chamfer matched with the first circular arc chamfer is arranged between the outer spherical groove and the outer spherical end.
Further, the outer wall of the input gear is coaxially and fixedly provided with a first radiating fin, and the outer walls of the two ends of the friction shell are coaxially and fixedly provided with a second radiating fin.
Further, the transmission assembly comprises a first transmission gear, a second transmission gear and a transmission shaft, wherein the first transmission gear is fixedly arranged at one end of the transmission shaft and meshed with the input gear, the second transmission gear is fixedly arranged at the other end of the transmission shaft and meshed with the output gear, and the transmission shaft is rotatably arranged on the partition plate.
Further, the front-rear drive speed adjusting assembly comprises a front drive gear, a rear drive gear, an adjusting gear and an adjusting gear shaft, a transmission cavity is arranged in the transmission shell, the transmission cavity is arranged between the two output gears, the front drive gear and the rear drive gear are symmetrically arranged in the transmission cavity in a rotating mode and coaxially arranged with the output gears, the adjusting gear and the adjusting gear are evenly meshed between the front drive gear and the rear drive gear, the adjusting gear is rotatably arranged on the adjusting gear shaft, and two ends of the adjusting gear shaft are fixedly arranged on the transmission shell.
Further, the adjusting block is provided with a slot parallel to the input shaft, the middle part of the friction shell is provided with an annular extrusion groove matched with the slot, two side end faces of the adjusting block are mutually parallel and respectively matched with two side wall faces of the annular extrusion groove, the two side wall faces of the annular extrusion groove are mutually parallel, and the distance between the two side end faces of the adjusting block is smaller than the distance between the two side wall faces of the annular extrusion groove.
Further, the U-shaped grooves are formed in the two side end faces of the adjusting block, the U-shaped grooves are slidably provided with U-shaped sliding plates matched with the U-shaped grooves, at least three ejection springs are arranged between the bottoms of the U-shaped sliding plates and the bottoms of the U-shaped grooves, at least two rolling balls are uniformly arranged on the U-shaped sliding plates, two adjacent rolling balls are not contacted, ball bowls matched with the rolling balls are arranged on the U-shaped sliding plates, end covers matched with the U-shaped grooves are fixedly arranged on openings of the U-shaped grooves, the side faces of the rolling balls always protrude to the outer side faces of the end covers, and the rolling balls on the two side end faces of the adjusting block are not contacted with the two side wall faces of the annular extrusion groove.
Further, the clamping rod is rotatably arranged at one end of the adjusting shaft, the clamping rod is arranged at the outer side of the assembly shell, the assembly shell is provided with a clamping block, and three clamping grooves matched with the clamping rod are formed in the clamping block.
Further, the device also comprises a precursor connecting component and a rear-drive connecting component, wherein the precursor connecting component is connected with the precursor gear, and the rear-drive connecting component is connected with the rear-drive gear.
Further, the precursor connecting assembly and the rear-drive connecting assembly each comprise a first driving shaft, a second driving shaft and a third driving shaft, the output end of the first driving shaft is connected with the input end of the second driving shaft through a first bevel gear part, the output end of the second driving shaft is connected with the input end of the third driving shaft through a second bevel gear part, the two first driving shafts are coaxially arranged, the input ends of the two first driving shafts are respectively connected with the precursor gear and the rear-drive gear, and the two third driving shafts are mutually parallel.
The beneficial effects of the invention are as follows:
1) In the technology, the transmission part is fully integrated inside the assembly shell, so that the transmission assembly has the functions of speed reduction, speed change, clutch and the like, and meanwhile, the structure of the transmission assembly is simplified and miniaturized, and the operation is very convenient.
2) In the technology, the friction inner container is matched with the outer spherical surface groove through the inner spherical surface convex ring and the outer spherical surface groove, and is matched with the outer spherical surface end through the inner spherical surface groove, so that the contact area is increased in the transmission process, and the power is better transmitted.
3) In the technology, U-shaped grooves are formed in two sides of the adjusting block, rolling balls are arranged in the U-shaped grooves, and friction resistance born by the friction shell can be effectively reduced through the rolling balls in the rotating process of the friction shell.
Drawings
FIG. 1 is a diagram of the internal connections of the present variable speed drive assembly;
FIG. 2 is an enlarged connection block diagram at A of FIG. 1;
FIG. 3 is a diagram of the fit between the adjustment block and the friction housing;
FIG. 4 is a diagram showing the connection structure of the rolling ball to the adjustment block;
FIG. 5 is a diagram of the connection between the precursor gear and the first drive shaft;
FIG. 6 is a diagram of the mating structure between the detent lever and the detent block;
FIG. 7 is a diagram of the connection between the front and rear drive connection assemblies and the front and rear drive speed adjustment assembly;
in the figure, 1-assembly housing, 2-partition plate, 3-input shaft, 4-adjusting shaft, 5-adjusting block, 6-friction housing, 7-friction liner, 8-transmission housing, 9-guide bar, 10-friction ring layer, 11-input gear, 12-output gear, 13-inner spherical convex ring, 14-inner spherical groove, 15-outer spherical groove, 16-outer spherical end, 17-first cooling fin, 18-second cooling fin, 19-first transmission gear, 20-second transmission gear, 21-transmission shaft, 22-precursor gear, 23-rear drive gear, 24-adjusting gear, 25-adjusting gear shaft, 26-slot, 27-annular extrusion groove, 28-U-shaped groove, 29-U-shaped slide plate, 30-ejection spring, 31-rolling ball, 32-bowl, 33-end cover, 34-spherical groove, 35-detent lever, 36-detent block, 37-detent groove, 38-first driving shaft, 39-second driving shaft, 40-third driving shaft, 41-first bevel gear, 42-second bevel gear, 43-guiding bevel gear.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present invention, based on the embodiments of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution:
the utility model provides a take variable speed transmission assembly of separation function, including assembly casing 1, division board 2, input shaft 3, regulating shaft 4, regulating block 5, friction shell 6, friction inner bag 7 and drive casing 8, division board 2 sealed fixed setting is in the inside of assembly casing 1 and with assembly casing 1 split into independent input room and output room, input shaft 3 rotates and sets up in the input room and links to each other with the driving piece outside the assembly casing 1, regulating shaft 4 slides and sets up in the input room and with input shaft 3 parallel arrangement, one end rotation setting of regulating block 5 is on regulating shaft 4 and can not slide on regulating shaft 4, the middle part rotation setting of friction shell 6 is on regulating block 5 other end, friction shell 6 slip cap is established on input shaft 3 and with input shaft 3 coaxial arrangement, at least evenly be provided with two gibs 9 on the outer wall of input shaft 3, gib 9 is parallel with the axial lead of input shaft 3, the inner wall of the friction shell 6 is provided with a guide groove 43 matched with the guide strip 9, two ends of the friction shell 6 are respectively matched with the two friction inner containers 7, the two friction inner containers 7 are respectively and coaxially fixedly arranged on the two input gears 11, the friction shell 6 does not simultaneously drive the two friction inner containers 7 to rotate, the two input gears 11 are respectively and coaxially arranged on the input shaft 3, the two input gears 11 are respectively matched with one end of two groups of transmission components, the other end of the two groups of transmission components are respectively matched with the two output gears 12, the two output gears 12 are coaxially fixed on the transmission shell 8, the transmission shell 8 is rotatably arranged on the inner wall of the output chamber, a front-back driving speed adjusting component is arranged in the transmission shell 8, the two groups of transmission components are rotatably arranged on the separation plate 2, the two input gears 11 are arranged on the inner sides of the two groups of transmission components, the two output gears 12 are arranged on the inner sides of the two groups of transmission components, and the friction inner container 7 and the input gears 11 are not contacted with the guide strips 9. The input shaft 3 and the transmission housing 8 are both fixed on the assembly housing 1 through bearings, the adjusting shaft 4 is slidably arranged on the assembly housing 1, the adjusting shaft 4, the input shaft 3 and the transmission housing 8 are mutually parallel, the adjusting block 5 can only rotate on the adjusting shaft 4 and cannot slide, the adjusting shaft 4 can rotate and also move along the length direction of the adjusting block, the adjusting block 5 is simultaneously driven to move when the adjusting shaft 4 moves, the adjusting block 5 drives the friction housing 6 to move, a driving piece is a motor, an engine and the like in the prior art, the input shaft 3 rotates under the action of the driving piece, the input shaft 3 is fixedly provided with a guide strip 9, the friction housing 6 and the input shaft 3 synchronously rotate under the action of the guide strip 9, after the friction housing 6 moves and fully contacts with the friction liner 7, at the moment, the friction liner 7 and the input gear 11 rotate together, the input gear 11 drives the output gear 12 to rotate through a transmission assembly matched with the friction housing 12, the transmission housing 8 drives the transmission housing 8 to rotate through a front wheel and a rear wheel, the transmission speed adjusting assembly drives the power to rotate through the transmission housing 12 to drive the transmission housing 8, and then the output gear 12 drives the other output gear 11 to rotate through the transmission gear 11 to rotate, and the other input gear 11 is not arranged on the transmission gear 11. Two groups of first limiting rings are fixedly arranged on the input gear 11, and the first limiting rings are arranged between the friction inner container 7 and the input gear 11, so that the friction inner container 7 and the input gear 11 are prevented from sliding on the input shaft 3. Two second limiting rings are fixedly arranged on the adjusting shaft 4, and the adjusting block 5 is arranged between the two second limiting rings. The inner wall of the input chamber is provided with a heat radiation hole, and the partition plate 2 has two functions, namely, the partition plate is used for installing a transmission assembly; and the second is used for separating the input chamber from the output chamber and preventing heat in the output chamber from entering the output chamber. The transmission housing 8 is used to mount the front and rear drive speed adjustment assembly and transmit power.
In some embodiments, one end of the friction liner 7 is fixedly connected with the input gear 11 coaxially, the other end of the friction liner 7 is provided with an inner spherical convex ring 13 and an inner spherical groove 14, the inner spherical convex ring 13 is arranged on the outer side of the inner spherical groove 14 and is coaxially arranged with the input shaft 3, a first circular arc chamfer is arranged between the inner spherical convex ring 13 and the inner spherical groove 14, two ends of the friction shell 6 are provided with outer spherical grooves 15 matched with the inner spherical convex ring 13, an outer spherical end 16 matched with the outer spherical grooves 15 is arranged in the outer spherical grooves 15, and a second circular arc chamfer matched with the first circular arc chamfer is arranged between the outer spherical grooves 15 and the outer spherical end 16. When the inner spherical convex ring 13 is fully contacted with the outer spherical groove 15, the inner spherical groove 14 can be fully contacted with the outer spherical end 16, and meanwhile, the first circular arc chamfer and the second circular arc chamfer can be fully contacted, so that the contact area between the friction liner 7 and the friction shell 6 can be fully increased, and the transmission power can be better when the friction liner 7 is contacted with the friction shell 6. In order to better protect the friction shell 6, a friction ring layer 10 is arranged between the friction shell 6 and the friction liner 7, the friction ring layer 10 is made of asbestos fiber friction materials in the prior art, the friction ring layer 10 is fixed on two ends of the friction shell 6, one side surface of the friction ring layer 10 is matched with the friction liner 7, and one side surface of the friction ring layer 10 is matched with the friction shell 6.
In some embodiments, the first cooling fins 17 are coaxially and fixedly arranged on the outer wall of the input gear 11, and the second cooling fins 18 are coaxially and fixedly arranged on the outer walls of the two ends of the friction housing 6. In the process of contacting the friction liner 7 with the friction shell 6, relative rotation exists between the friction liner 7 and the friction shell 6, and a large amount of heat is generated during the relative rotation in contact, so as to prevent the input gear 11, the input shaft 3 and the friction shell 6 from deforming due to overhigh temperature, and the first cooling fins 17 and the second cooling fins 18 are arranged to better dissipate heat. The first heat sink 17 on both input gears 11 is disposed close to the friction housing 6 side.
In some embodiments, the transmission assembly includes a first transmission gear 19, a second transmission gear 20, and a transmission shaft 21, the first transmission gear 19 being fixedly disposed on one end of the transmission shaft 21 and engaged with the input gear 11, the second transmission gear 20 being fixedly disposed on the other end of the transmission shaft 21 and engaged with the output gear 12, the transmission shaft 21 being rotatably disposed on the partition plate 2. Wherein, two transmission shafts 21 are all fixed on division board 2 through the bearing, and first drive gear 19 and second drive gear 20 are fixed connection respectively on the both ends of transmission shaft 21. Each group of transmission components consists of an input gear 11, a first transmission gear 19, a second transmission gear 20 and an output gear 12, different transmission ratios can be set between the input gear 11 and the first transmission gear 19, different transmission ratios can also be set between the second transmission gear 20 and the output gear 12, two groups of transmission components are arranged in the assembly shell 1, and finally the output gear 12 can output different rotating speeds.
In some embodiments, the front-rear drive speed adjusting assembly includes a front drive gear 22, a rear drive gear 23, an adjusting gear 24 and an adjusting gear shaft 25, a transmission cavity is provided in the transmission housing 8, the transmission cavity is provided between the two output gears 12, the front drive gear 22 and the rear drive gear 23 are symmetrically and rotatably provided in the transmission cavity and coaxially provided with the output gears 12, the adjusting gear 24 and the evenly adjusting gear 24 are provided between the front drive gear 22 and the rear drive gear 23 for meshing, the adjusting gear 24 is rotatably provided on the adjusting gear shaft 25, and both ends of the adjusting gear shaft 25 are fixedly provided on the transmission housing 8. The front driving gear 22 and the rear driving gear 23 are coaxially arranged in the transmission cavity, the front driving gear 22 and the transmission shell 8 are coaxially arranged, a first jack which is convenient for the insertion of the first driving shaft 38 is coaxially arranged in the front driving gear 22, a second jack which is convenient for the insertion of the first driving shaft 38 is coaxially arranged in the rear driving gear 23, the sections of the first jack and the second jack are in a regular triangle shape, three angles of the regular triangle are all round angles, and the center of the round angles is on the axis of the transmission shell 8. Two adjusting gears 24 are symmetrically arranged in the transmission cavity, the two adjusting gears 24 are both rotatably arranged on an adjusting gear shaft 25, two ends of the adjusting gear shaft 25 are fixedly arranged on the transmission shell 8, and the adjusting gears 24 are arranged between the front driving gear 22 and the rear driving gear 23 and meshed with each other. Any output gear 12 will drive the transmission casing 8 to rotate when rotating, and drive the adjusting gear shaft 25 to rotate when the transmission casing 8 rotates, and the adjusting gear shaft 25 drives the front driving gear 22 and the rear driving gear 23 to rotate through the adjusting gear 24, so as to transmit power.
In some embodiments, the adjusting block 5 is provided with a slot 26 parallel to the input shaft 3, the middle part of the friction housing 6 is provided with an annular extrusion groove 27 matched with the slot 26, two side end surfaces of the adjusting block 5 are mutually parallel and respectively matched with two side wall surfaces of the annular extrusion groove 27, the two side wall surfaces of the annular extrusion groove 27 are mutually parallel, and the distance between the two side end surfaces of the adjusting block 5 is smaller than the distance between the two side wall surfaces of the annular extrusion groove 27. Wherein, the cross section of annular extrusion groove 27 is right circular, and during the installation, slot 26 inserts annular extrusion groove 27 directly, and the middle part of friction shell 6 is direct in annular extrusion groove 27 rotation. The adjusting shaft 4 can drive the adjusting block 5 to move, the side end face of the adjusting block 5 can prop against the side wall of the annular extrusion groove 27, the friction shell 6 slides on the input shaft 3, then the friction shell 6 acts on the friction inner container 7, the friction inner container 7 drives the corresponding input gear 11 to rotate, and the input gear 11 drives the transmission shell 8 to rotate after sequentially passing through the first transmission gear 19, the second transmission gear 20 and the output gear 12.
In some embodiments, the two side end faces of the adjusting block 5 are provided with a U-shaped groove 28, a U-shaped sliding plate 29 matched with the U-shaped groove 28 is slidably arranged in the U-shaped groove 28, at least three ejection springs 30 are arranged between the U-shaped sliding plate 29 and the bottom of the U-shaped groove 28, at least two rolling balls 31 are uniformly arranged on the U-shaped sliding plate 29, two adjacent rolling balls 31 are not contacted, a ball bowl 32 matched with the rolling balls 31 is arranged on the U-shaped sliding plate 29, an end cover 33 matched with the U-shaped groove 28 is fixedly arranged on an opening of the U-shaped groove 28, a ball groove 34 matched with the rolling balls 31 is arranged on the end cover 33, the side faces of the rolling balls 31 always protrude to the outer side faces of the end cover 33, and the rolling balls 31 on the two side end faces of the adjusting block 5 are not contacted with the two side wall faces of the annular extrusion groove 27. The outer side surface of the end cover 33 is flush with the side end surface of the adjusting block 5, the end cover 33 is combined with the U-shaped sliding plate 29 to be used for installing the rolling ball 31, the rolling ball 31 can be contacted with the side wall of the annular extrusion groove 27 in the rotation process of the friction shell 6, the side end surfaces of the end cover 33 and the adjusting block 5 are not contacted with the side wall of the annular extrusion groove 27 all the time, in order to play a buffering role, an ejection spring 30 is arranged between the bottom of the U-shaped groove 28 and the U-shaped sliding plate 29, in actual operation, a spring installation hole is arranged at the bottom of the U-shaped groove 28, the end part of the ejection spring 30 is arranged in the spring installation hole, when the U-shaped sliding plate 29 is contacted with the bottom of the U-shaped groove 28, the outer side surface of the rolling ball 31 is protruded outside the side end surface of the adjusting block 5, a ball bowl 32 and a ball groove 34 are arranged to facilitate better installation of the rolling ball 31, and the rolling ball 31 can only rotate around a ball center when the friction shell 6 works.
In some embodiments, a clamping rod 35 is rotatably arranged at one end of the adjusting shaft 4, the clamping rod 35 is arranged at the outer side of the assembly shell 1, a clamping block 36 is arranged on the assembly shell 1, and three clamping grooves 37 matched with the clamping rod 35 are arranged on the clamping block 36. One end of the clamping block 36 is fixed on the assembly housing 1, the clamping block 36 is parallel to the adjusting shaft 4, three clamping grooves 37 matched with the clamping rods 35 are formed in the clamping block 36, external force acts on the adjusting shaft 4 to enable the adjusting shaft 4 to move along the length direction of the adjusting shaft 4, the adjusting block 5 is driven to move when the adjusting shaft 4 moves, and the friction housing 6 can be driven to move on the input shaft 3 by the movement of the adjusting block 5. When the clamping rod 35 is clamped in the clamping groove 37 in the middle, under the action of the adjusting block 5, the friction shell 6 and the friction inner containers 7 at the two ends are in a separated state, and the power on the input shaft 3 cannot be transmitted to the input gear 11 through the friction shell 6 and the friction inner containers 7; when the clamping rod 35 is clamped in any clamping groove 37 on two sides, the adjusting shaft 4 drives the friction shell 6 to move towards the friction liner 7 on the corresponding side through the adjusting block 5 and fully contact with the friction shell, at the moment, power on the input shaft 3 can be transmitted to the input gear 11 through the friction shell 6 and the friction liner 7, and the transmission shell 8 is driven to rotate through the transmission assembly and the output gear 12 on the corresponding side.
In some embodiments, a precursor coupling assembly is coupled to the precursor gear 22 and a rear coupling assembly is coupled to the rear gear 23. The front drive connecting assembly and the rear drive connecting assembly comprise a first driving shaft 38, a second driving shaft 39 and a third driving shaft 40, wherein the output end of the first driving shaft 38 is connected with the input end of the second driving shaft 39 through a first bevel gear part 41, the output end of the second driving shaft 39 is connected with the input end of the third driving shaft 40 through a second bevel gear part 42, the two first driving shafts 38 are coaxially arranged, the input ends of the two first driving shafts 38 are respectively connected with the front drive gear 22 and the rear drive gear 23, and the two third driving shafts 40 are mutually parallel. Wherein, the first bevel gear part 41 can be the meshing of two gears, and can also be replaced by a universal coupling in the prior art; the second bevel gear member 42 may be a two gear mesh or a differential as is known in the art. In the precursor connecting assembly, the precursor gear 22 drives the first driving shaft 38 to rotate, the first driving shaft 38 drives the third driving shaft 40 to rotate after sequentially passing through the first bevel gear part 41, the second driving shaft 39 and the second bevel gear part 42, and front wheels are arranged on two ends of the third driving shaft 40; in the rear-drive connection assembly, the front-drive gear 22 drives the first drive shaft 38 to rotate, the first drive shaft 38 drives the third drive shaft 40 to rotate after sequentially passing through the first bevel gear part 41, the second drive shaft 39 and the second bevel gear part 42, and rear wheels are arranged at two ends of the third drive shaft 40, so that four-drive is completely realized. In some four-wheel drive mobile devices, particularly devices with different front and rear wheels, such as automobiles and mini-tiller, wheelchairs for disabled people and the like can be conveniently provided with the transmission assembly.
In the description of the present invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "inner," "front," "center," "two ends," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "hinged," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
The foregoing is merely a preferred embodiment of the invention, and it is to be understood that the invention is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.
Claims (10)
1. A variable speed drive assembly with a disengagement function, characterized in that: comprises an assembly shell (1), a partition plate (2), an input shaft (3), an adjusting shaft (4), an adjusting block (5), a friction shell (6), a friction liner (7) and a transmission shell (8), wherein the partition plate (2) is fixedly arranged in the assembly shell (1) in a sealing way and divides the assembly shell (1) into an independent input chamber and an independent output chamber, the input shaft (3) is rotatably arranged in the input chamber and is connected with a driving piece outside the assembly shell (1), the adjusting shaft (4) is slidably arranged in the input chamber and is parallel to the input shaft (3), one end of the adjusting block (5) is rotatably arranged on the adjusting shaft (4) and cannot slide on the adjusting shaft (4), the middle part of the friction shell (6) is rotatably arranged on the other end of the adjusting block (5), the friction shell (6) is slidably sleeved on the input shaft (3) and is coaxially arranged with the input shaft (3), at least two guide strips (9) are uniformly arranged on the outer wall of the input shaft (3), the guide strips (9) are matched with the guide strips (43), the friction shell (6) both ends respectively with two friction inner bag (7) cooperation, two friction inner bag (7) coaxial fixed setting respectively is on two input gear (11), friction outer bag (6) are different to drive two simultaneously friction inner bag (7) rotate, two input gear (11) coaxial rotation respectively sets up on input shaft (3), two input gear (11) respectively with two sets of transmission assembly's one end cooperation, two sets of transmission assembly's the other end respectively with two output gear (12) cooperation, two output gear (12) coaxial fixation is in on transmission casing (8), transmission casing (8) rotate and set up on the inner wall of output room, be provided with front and back drive speed adjustment subassembly in transmission casing (8), two sets of transmission assembly all rotate and set up on division board (2), two input gear (11) all set up in two sets of transmission assembly's inboard, two output gear (12) set up in two sets of transmission assembly's one end, two sets of transmission assembly (7) all have contact with input gear (9).
2. A variable speed drive assembly with disconnect as defined in claim 1, wherein: the friction inner bag is characterized in that one end of the friction inner bag (7) is fixedly connected with the input gear (11) in a coaxial mode, an inner spherical convex ring (13) and an inner spherical groove (14) are arranged at the other end of the friction inner bag (7), the inner spherical convex ring (13) is arranged on the outer side of the inner spherical groove (14) and is coaxially arranged with the input shaft (3), a first circular arc chamfer is arranged between the inner spherical convex ring (13) and the inner spherical groove (14), outer spherical grooves (15) matched with the inner spherical convex ring (13) are formed in two ends of the friction outer shell (6), outer spherical end heads (16) matched with the outer spherical grooves (15) are arranged in the outer spherical grooves (15), and second circular arc chamfers matched with the first circular arc chamfer are arranged between the outer spherical end heads (16).
3. A variable speed drive assembly with disconnect as defined in claim 1 or 2, wherein: the outer walls of the input gears (11) are coaxially and fixedly provided with first radiating fins (17), and the outer walls of the two ends of the friction shell (6) are coaxially and fixedly provided with second radiating fins (18).
4. A variable speed drive assembly with disconnect as defined in claim 1 or 2, wherein: the transmission assembly comprises a first transmission gear (19), a second transmission gear (20) and a transmission shaft (21), wherein the first transmission gear (19) is fixedly arranged at one end of the transmission shaft (21) and meshed with the input gear (11), the second transmission gear (20) is fixedly arranged at the other end of the transmission shaft (21) and meshed with the output gear (12), and the transmission shaft (21) is rotatably arranged on the separation plate (2).
5. A variable speed drive assembly with disconnect as defined in claim 1 or 2, wherein: the front-rear drive speed adjusting assembly comprises a front drive gear (22), a rear drive gear (23), an adjusting gear (24) and an adjusting gear shaft (25), wherein a transmission cavity is formed in a transmission shell (8), the transmission cavity is formed between two output gears (12), the front drive gear (22) and the rear drive gear (23) are symmetrically arranged in the transmission cavity in a rotating mode and are coaxially arranged with the output gears (12), the front drive gear (22) and the rear drive gear (23) are provided with the adjusting gear (24) and are evenly meshed with the adjusting gear (24), the adjusting gear (24) is rotatably arranged on the adjusting gear shaft (25), and two ends of the adjusting gear shaft (25) are fixedly arranged on the transmission shell (8).
6. A variable speed drive assembly with disconnect as defined in claim 1 or 2, wherein: be provided with on regulating block (5) with slot (26) of input shaft (3) parallel, the middle part of friction shell (6) be provided with slot (26) complex annular extrusion groove (27), two side terminal surfaces of regulating block (5) parallel arrangement each other and respectively with two lateral wall face cooperation of annular extrusion groove (27), two lateral wall faces of annular extrusion groove (27) are parallel to each other, the distance between two side terminal surfaces of regulating block (5) is less than the distance between two lateral wall faces of annular extrusion groove (27).
7. A variable speed drive assembly with disconnect as defined in claim 6, wherein: the novel rolling device is characterized in that U-shaped grooves (28) are formed in two side end faces of the adjusting block (5), U-shaped sliding plates (29) matched with the U-shaped grooves (28) are arranged in the U-shaped grooves (28) in a sliding mode, at least three ejection springs (30) are arranged between the bottoms of the U-shaped sliding plates (29) and the bottoms of the U-shaped grooves (28), at least two rolling balls (31) are uniformly arranged on the U-shaped sliding plates (29), two adjacent rolling balls (31) are not contacted, ball bowls (32) matched with the rolling balls (31) are arranged on the U-shaped sliding plates (29), end covers (33) matched with the U-shaped grooves (28) are fixedly arranged on openings of the U-shaped grooves, the side faces of the rolling balls (31) are always protruded to the outer side faces of the end covers (33), and the rolling balls (31) on the two side end faces of the adjusting block (5) are not contacted with the two side walls of the annular grooves (27) at the same time.
8. A variable speed drive assembly with disconnect as defined in claim 1 or 2, wherein: the adjustable clamping device is characterized in that a clamping rod (35) is rotatably arranged at one end of the adjusting shaft (4), the clamping rod (35) is arranged at the outer side of the assembly shell (1), a clamping block (36) is arranged on the assembly shell (1), and three clamping grooves (37) matched with the clamping rod (35) are formed in the clamping block (36).
9. A variable speed drive assembly with disconnect as defined in claim 5, wherein: the device also comprises a precursor connecting component and a rear-drive connecting component, wherein the precursor connecting component is connected with the precursor gear (22), and the rear-drive connecting component is connected with the rear-drive gear (23).
10. A variable speed drive assembly with disconnect as defined in claim 9, wherein: the front drive connecting assembly and the rear drive connecting assembly comprise a first driving shaft (38), a second driving shaft (39) and a third driving shaft (40), wherein the output end of the first driving shaft (38) is connected with the input end of the second driving shaft (39) through a first bevel gear part (41), the output end of the second driving shaft (39) is connected with the input end of the third driving shaft (40) through a second bevel gear part (42), and the two first driving shafts (38) are coaxially arranged, the input ends of the two first driving shafts are respectively connected with the front drive gear (22) and the rear drive gear (23), and the two third driving shafts (40) are mutually parallel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410053193.0A CN117570159B (en) | 2024-01-15 | 2024-01-15 | Variable speed transmission assembly with separation function |
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| CN202410053193.0A CN117570159B (en) | 2024-01-15 | 2024-01-15 | Variable speed transmission assembly with separation function |
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| CN117570159B CN117570159B (en) | 2024-03-19 |
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| CN117570159B (en) | 2024-03-19 |
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