CN113294497B - Transmission device capable of adjusting shaft center distance - Google Patents
Transmission device capable of adjusting shaft center distance Download PDFInfo
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- CN113294497B CN113294497B CN202110844873.0A CN202110844873A CN113294497B CN 113294497 B CN113294497 B CN 113294497B CN 202110844873 A CN202110844873 A CN 202110844873A CN 113294497 B CN113294497 B CN 113294497B
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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
- F16H3/20—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear
- F16H3/22—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially
- F16H3/30—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially with driving and driven shafts not coaxial
- F16H3/32—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially with driving and driven shafts not coaxial and an additional shaft
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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
- F16H57/022—Adjustment of gear shafts or 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/04—Ratio selector apparatus
- F16H59/042—Ratio selector apparatus comprising a final actuating mechanism
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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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/08—Multiple final output mechanisms being moved by a single common final actuating mechanism
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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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/3069—Interrelationship between two or more final output mechanisms
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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
- F16H57/022—Adjustment of gear shafts or bearings
- F16H2057/0222—Lateral adjustment
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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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H2059/0221—Selector apparatus for selecting modes, i.e. input device
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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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H2063/3093—Final output elements, i.e. the final elements to establish gear ratio, e.g. dog clutches or other means establishing coupling to shaft
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a transmission device capable of adjusting the shaft center distance, which comprises an end transmission assembly, a fixed transmission assembly and an intermediate transmission assembly, wherein a connecting transmission device is arranged among the intermediate transmission assembly, the end transmission assembly and the fixed transmission assembly. The fixed transmission assembly comprises a half-toothed rod used for driving the middle transmission assembly to slide on the axis of the fixed transmission assembly, different gear meshing forms are changed, transmission ratio adjustment is achieved, and meanwhile the middle transmission assembly is sleeved with a fixing device used for fixing the end transmission assembly and the middle transmission assembly.
Description
Technical Field
The invention relates to the technical field of transmission equipment, in particular to a transmission device capable of adjusting the center distance of shafts.
Background
The transmission device is an intermediate device for transmitting the motion and power of a prime mover to a working mechanism, and generally has a speed changing function, the rotating speed output by a processing power source is adjusted to a required value, such as an accelerator, a reducer and other common devices, although the devices can realize speed adjustment, the distance between an input shaft and an output shaft of the power is constant, the transmission ratio is constant, and great limitations exist, for example, the prior art (CN 202022135737.8) discloses a two-gear transmission, and relates to the technical field of transmissions. The two-gear transmission comprises a gear ring, a planet wheel and a sun wheel, wherein the planet wheel is meshed between the gear ring and the sun wheel, the planet wheel is arranged on a planet wheel carrier, a first unidirectional rotating mechanism is arranged between the planet wheel and the planet wheel carrier, the planet wheel carrier is also connected with a second unidirectional rotating mechanism for controlling the rotating direction of the planet wheel carrier, the rotating directions of the first unidirectional rotating mechanism and the second unidirectional rotating mechanism are the same, the prior art utilizes the first unidirectional rotating mechanism to change the bidirectional rotation of the planet wheel into the unidirectional rotation, and the planet wheel carrier is divided into two working conditions of rotation and fixation through the second unidirectional rotating mechanism. The sun gear rotates forwards and backwards in two rotation ratios respectively, so that the planetary gear has two rotation speed gears, the power output directions of the gear rings are the same when the two rotation speed gears are in the two rotation speed gears, the change of the self transmission ratio of the planetary gear is realized, the application range of the planetary gear is expanded, certain limitation still exists due to the fact that the distance between an input shaft and an output shaft is not adjustable, the gears are few, and various requirements cannot be met, therefore, the transmission device capable of adjusting the shaft center distance is provided, the problem of adjusting the shaft center distance is solved, meanwhile, the speed adjusting range is large, and the application range is wide.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the technical defects and provide a transmission device capable of adjusting the center distance of a shaft.
Aiming at the technical problems, the technical scheme adopted by the invention is as follows:
a transmission device capable of adjusting the center distance of a shaft comprises a first shell, a second shell and end transmission assemblies, wherein the second shell is in butt joint with the first shell, a curved groove is formed in the first shell, a straight groove is formed in the second shell, a sliding frame is arranged in the second shell, the end transmission assemblies are arranged in the second shell and located on two sides of the second shell, the end transmission assemblies slide on the straight groove and the sliding frame on the second shell, and meanwhile, the end transmission assemblies slide in the second shell along the axis direction of the end transmission assemblies; the fixed transmission assembly is positioned between the two end transmission assemblies, the fixed transmission assemblies are rotatably arranged in the second shell, an intermediate transmission assembly is connected between the end transmission assemblies and the fixed transmission assemblies through a second connecting plate, and the intermediate transmission assembly slides in the second shell along the axis direction of the intermediate transmission assembly;
the end part transmission assembly comprises a first rack bar, a first gear, a first rotating shaft and a second gear, the first rack bar is coaxially and rotatably arranged on the first rotating shaft, the first gear is coaxially and fixedly arranged on the first rotating shaft, and the second gear is coaxially and fixedly arranged on the first rotating shaft;
the middle transmission assembly comprises a third gear, a second rotating shaft, a fourth gear and a second rack bar, the second rack bar is rotatably arranged on the second rotating shaft, and the third gear and the fourth gear are coaxially and fixedly arranged on the second rotating shaft;
the fixed transmission assembly comprises a fifth gear, a third rotating shaft, a sixth gear and a half-tooth rod, the half-tooth rod is coaxially and rotatably arranged on the third rotating shaft, meanwhile, the half-tooth rod slides in the axial direction of the third rotating shaft, and the fifth gear and the sixth gear are coaxially and fixedly arranged on the third rotating shaft;
the end part of a second toothed bar on the middle transmission assembly is connected with a first toothed bar in the end transmission assembly and a half toothed bar in the fixed transmission assembly through a first connecting plate, a connecting transmission device is installed on the first connecting plate and is used for connecting the second toothed bar with the first toothed bar or the second toothed bar with the half toothed bar, two end sleeves of the second toothed bar are provided with fixing devices used for fixing the two first connecting plates together, and shaft sleeves sleeved on the two fixing devices and the half toothed bar form belt transmission.
Preferably, the first end of the second connecting plate is rotatably mounted on the second rotating shaft, the second end of the second connecting plate is rotatably and simultaneously slidably mounted on the first rotating shaft or the third rotating shaft, the numbers of teeth of the first gear, the third gear and the sixth gear are the same, the numbers of teeth of the second gear, the fourth gear and the fifth gear are the same, the numbers of teeth of the third gear and the fourth gear are the same, the third gear, the second gear and the fifth gear are located on the same side in the second housing, and the third gear and the fourth gear on the intermediate transmission assembly are respectively in gear fit with the end portion transmission assembly and the fixed transmission assembly.
Preferably, the first rack bar and the second rack bar are provided with annular bulges, the semi-annular bulges are arranged on the semi-rack bars, the connecting transmission device comprises a transmission gear, the transmission gear is meshed with the tooth profiles of the first rack bar, the second rack bar and the semi-rack bars, the transmission gear is rotatably installed on a rotating frame, the rotating frame is fixedly installed on a first connecting plate, the rotating frame is provided with a first knob, and the first knob is slidably installed on a curved groove on the first shell.
Preferably, the first rack bar is slidably mounted on the first connecting plate, the fixing device is rotatably mounted on the first connecting plate, the second rack bar is slidably mounted on the fixing device, the half rack bar is rotatably mounted inside the shaft sleeve, the shaft sleeve is rotatably mounted on the first connecting plate, and the half rack bar is slidably mounted on the shaft sleeve.
Preferably, the fixing device comprises a rotating drum, the rotating drum is rotatably installed on the first connecting plate, the second gear rod is slidably installed on the rotating drum, a rotating pin is arranged on the rotating drum, a blade is rotatably installed on the rotating pin, a through hole is formed in the middle of the blade, the rotating shaft is arranged in the through hole, a sliding groove is formed in the first connecting plate, the rotating shaft is slidably installed in the sliding groove, a retaining ring is further arranged on the first connecting plate, and the blade is located between the first connecting plate and the retaining ring.
Preferably, the inner diameter of the shaft sleeve is divided into a first shaft diameter and a second shaft diameter, the central angle corresponding to the first shaft diameter region is 180 degrees, the central angle corresponding to the second shaft diameter region is 180 degrees, the first shaft diameter is larger than the second shaft diameter, a stop block is arranged on the shaft surface of the half-toothed bar inside the shaft sleeve, the distance between the top of the stop block and the axis of the half-toothed bar is equal to the radius of the first shaft diameter, and a second knob is fixedly mounted at the end part of the half-toothed bar.
Preferably, a key is arranged on a shaft of the first rotating shaft positioned outside the second shell, and the two first rotating shafts are respectively used for inputting and outputting power.
Compared with the prior art, the invention has the beneficial effects that: (1) the half-toothed rod drives the middle transmission assembly to slide in the axis direction of the half-toothed rod through the connecting transmission device, so that the transformation of different matching modes between the middle transmission assembly and the end transmission assemblies and the fixed transmission assemblies on the two sides is realized, the change of a transmission ratio is further realized, and the half-toothed rod is ingenious in structure and convenient to operate; (2) the fixing device realizes the fixation of the middle transmission assembly and the end transmission assembly through the driving of the half-toothed bar, provides various speed regulation modes and has wide speed regulation range; (3) the connecting transmission device provided by the invention realizes the connection of different transmission assemblies under the condition of not influencing the adjustment of the wheel base, and has a stable structure.
The fixed transmission assembly comprises a half-toothed rod used for driving the middle transmission assembly to slide on the axis of the fixed transmission assembly, different gear meshing forms are changed, transmission ratio adjustment is achieved, and meanwhile the middle transmission assembly is sleeved with a fixing device used for fixing the end transmission assembly and the middle transmission assembly.
Drawings
Fig. 1 and 2 are schematic views of the overall structure of the present invention.
Fig. 3 is a schematic structural view of the present invention with the first housing removed.
Fig. 4 is a schematic view of a second housing structure of the present invention.
Fig. 5 and 6 are schematic structural diagrams of the present invention with the first housing and the second housing removed.
FIG. 7 is a schematic view of the end drive assembly of the present invention.
FIG. 8 is a schematic view of the intermediate transmission assembly according to the present invention.
Fig. 9 and 10 are schematic structural views of the fixed transmission assembly of the invention.
Fig. 11 is a partial structural schematic diagram of fig. 10.
Fig. 12 is a schematic structural view of fig. 5 and 6 without a connecting transmission device.
FIG. 13 is a partial structural schematic of the present invention.
FIG. 14 is a schematic view of a fixing device according to the present invention.
FIG. 15 is a schematic view of the mounting structure of the rotor and the blades in the present invention.
FIG. 16 is a schematic view of a blade configuration according to the present invention.
Fig. 17 is a schematic view of the structure of the bushing of the present invention.
FIG. 18 is a schematic view of the structure of the drum of the present invention.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example (b): as shown in fig. 1-6, a transmission device capable of adjusting a center distance of a shaft includes a first housing 101, a second housing 102 disposed in butt joint with the first housing 101, a curved slot 104 disposed on the first housing 101, a straight slot 103 disposed on the second housing 102, a sliding frame 105 disposed inside the second housing 102, end transmission assemblies 107 disposed on two sides inside the second housing 102, the end transmission assemblies 107 slidably mounted on the straight slot 103 and the sliding frame 105, the end transmission assemblies 107 sliding along their axes in the second housing 102, a fixed transmission assembly 109 disposed between the two end transmission assemblies 107, the fixed transmission assembly 109 rotatably mounted in the second housing 102, an intermediate transmission assembly 108 mounted between the end transmission assemblies 107 and the fixed transmission assembly 109 through a second connecting plate 115, a first end of the second connecting plate 115 rotatably mounted on the intermediate transmission assembly 108, the second end of the second link plate 115 is rotatably and slidably mounted on the end drive assembly 107 or the fixed drive assembly 109. The end drive assembly 107, the intermediate drive assembly 108 and the fixed drive assembly 109 are all disposed within the space formed by the first housing 101 and the second housing 102.
As shown in fig. 7-9, the end transmission assembly 107 includes a first rack bar 116, a first rotating shaft 118, the first rack bar 116 is rotatably mounted at a shaft end of the first rotating shaft 118, a first gear 117 and a second gear 119 are coaxially and fixedly mounted on the first rotating shaft 118, a key 120 is disposed on a shaft of the first rotating shaft 118 located outside the second housing 102, the key 120 is used for connecting the transmission device capable of adjusting the center distance of the shaft with a power source or other working devices, the intermediate transmission assembly 108 includes a second rotating shaft 122 and a second rack bar 124, the second rack bar 124 is coaxially and rotatably mounted on the second rotating shaft 122, a third gear 121 and a fourth gear 123 are coaxially and fixedly mounted on the second rotating shaft 122, annular protrusions are disposed on the first rack bar 116 and the second rack bar 124, the first rack bar 116 is slidably mounted on the carriage 105, the fixed transmission assembly 109 includes a third rotating shaft 126, a half rack bar 128, a fifth gear 125 and a sixth gear 127 are coaxially and fixedly mounted on the third rotating shaft 126, a half-toothed bar 128 is coaxially and rotatably arranged on a third rotating shaft 126, the half-toothed bar 128 is slidably arranged on the third rotating shaft 126, a semi-annular bulge is arranged on the half-toothed bar 128, the half-toothed bar 128 is rotatably arranged on the sliding frame 105, a second knob 130 is arranged at the end part of the half-toothed bar 128, the second toothed bar 124 is connected with the first toothed bar 116 and the half-toothed bar 128 through a first connecting plate 113, the first end of the first connecting plate 113 between the first toothed bar 116 and the second toothed bar 124 is slidably connected with the first toothed bar 116, the second end of the first connecting plate 113 is rotatably provided with a fixing device 110, the second toothed bar 124 is slidably arranged on the fixing device 110, the first end of the first connecting plate 113 between the second toothed bar 124 and the half-toothed bar 128 is rotatably provided with the fixing device 110, the second end of the first connecting plate 113 is rotatably provided with a shaft sleeve 129, the half-toothed bar 128 is rotatably arranged in the shaft sleeve 129, while the half-toothed bar 128 is slidably mounted inside the bushing 129.
As shown in fig. 5 to 9, a connection transmission device 106 is disposed between the intermediate transmission assembly 108 and the end transmission assembly 107, and between the intermediate transmission assembly 108 and the fixed transmission assembly 109, the connection transmission device 106 includes a rotating frame 112, the rotating frame 112 is fixedly mounted on a first connection plate 113, a transmission gear 114 is rotatably mounted on the rotating frame 112, the transmission gear 114 forms a rack-and-pinion fit with a first rack bar 116, a second rack bar 124, or a half rack bar 128 located at two sides of the transmission gear 114, a first knob 111 is fixedly mounted on the rotating frame 112, the first knob 111 is slidably mounted on the curved slot 104, when the distance between the two end transmission assemblies 107 needs to be adjusted, the first knob 111 is rotated, and the first connection plate 113 is rotated by the rotating frame 112, so that the purpose of adjusting the distance between the two end transmission assemblies 107 can be achieved.
As shown in fig. 10-18, the fixing device 110 includes a rotating drum 135, the rotating drum 135 is rotatably mounted on a first connecting plate 113, the second rack bar 124 is slidably mounted on the rotating drum 135, three rotating pins are provided on the rotating drum 135, blades 137 are rotatably mounted on the rotating pins, a through hole is provided in the middle of the blades 137, a rotating shaft 133 is disposed in the through hole, a sliding slot 134 is provided on the first connecting plate 113, the rotating shaft 133 is slidably mounted on the sliding slot 134, a retaining ring 136 is further fixedly mounted on the first connecting plate 113, the blades 137 are disposed between the first connecting plate 113 and the retaining ring 136, the two rotating drums 135 form a belt transmission with a shaft sleeve 129 through a belt 132, the inner diameter of the shaft sleeve 129 includes a first shaft diameter 138 and a second shaft diameter 139, the central angles corresponding to the areas of the first shaft diameter 138 and the second shaft diameter 139 are both 180 °, the first shaft diameter 138 is greater than the second shaft diameter 139, a stop 131 is provided on the shaft surface of the semi-rack bar 128 located inside the shaft sleeve 129, the stop 131 is spaced from the axis of the half rack 128 by a distance equal to the radius of the first axis 138.
The invention has four transmission ratio adjusting modes, the first mode is as follows: firstly, the stopper 131 is positioned between the boundaries of the first shaft diameter 138, the second knob 130 is rotated, the half-toothed rod 128 is matched with one of the transmission gears 114 on the two sides, then the second knob 130 is pushed and pulled, the half-ring-shaped bulge on the half-toothed rod 128 drives one of the intermediate transmission assemblies 108 to slide on the second shell 102 along the self axis through the transmission gear 114, and further the third gear 121 on the intermediate transmission assembly 108 is controlled to be matched with the second gear 119 in a gear matching manner, meanwhile, the fourth gear 123 is matched with the sixth gear 127 in a gear matching manner, or the third gear 121 is matched with the fifth gear 125 in a gear matching manner, and meanwhile, the fourth gear 123 is matched with the first gear 117 in a gear matching manner; and the second method comprises the following steps: the change of the transmission ratio can be realized by rotating the semi-toothed bar 128 by an angle in the first shaft diameter 138, so that the semi-toothed bar 128 is connected with the other intermediate transmission assembly 108 relative to the first condition, and the other intermediate transmission assembly 108 is driven to move in the same way as the first condition; and the third is that: the second knob 130 is continuously rotated, the second knob 130 drives the shaft sleeve 129 to rotate through the stop block 131, the shaft sleeve 129 drives the rotary drum 135 to rotate through the belt 132, the rotary drum 135 drives the rotary shaft 133 to slide on the sliding groove 134 in the rotating process, so that the blades 137 are opened between the rotary shaft 133 and the stop ring 136, the first connecting plates 113 on two sides of the middle transmission assembly 108 are fixed, the end transmission assembly 107 and the middle transmission assembly 108 are fixed, and at the moment, the half-tooth rod 128 is pushed and pulled, so that different gears on the middle transmission assembly 108 can be meshed with the fixed transmission assembly 109, and the change of the transmission ratio is realized; and fourthly: the second knob 130 is turned to drive the other pair of the end transmission assembly 107 and the intermediate transmission assembly 108, which are fixed relatively, to make the same movement as the third case, so as to realize the change of the transmission ratio.
The present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make various modifications without creative efforts from the above-described conception and fall within the scope of the present invention.
Claims (7)
1. The utility model provides a can adjust transmission of axle centre-to-centre spacing, includes first shell, docks the second shell that sets up with first shell, is equipped with the curved groove on the first shell, is equipped with the straight flute on the second shell, the inside carriage that is equipped with of second shell, its characterized in that: the end part transmission assemblies are arranged in the second shell and positioned on two sides of the second shell, slide on a straight groove and a sliding frame on the second shell, and simultaneously slide in the direction of the axis of the end part transmission assembly in the second shell; the fixed transmission assembly is positioned between the two end transmission assemblies, the fixed transmission assemblies are rotatably arranged in the second shell, an intermediate transmission assembly is connected between the end transmission assemblies and the fixed transmission assemblies through a second connecting plate, and the intermediate transmission assembly slides in the second shell along the axis direction of the intermediate transmission assembly;
the end part transmission assembly comprises a first rack bar, a first gear, a first rotating shaft and a second gear, the first rack bar is coaxially and rotatably arranged on the first rotating shaft, the first gear is coaxially and fixedly arranged on the first rotating shaft, and the second gear is coaxially and fixedly arranged on the first rotating shaft;
the middle transmission assembly comprises a third gear, a second rotating shaft, a fourth gear and a second rack bar, the second rack bar is rotatably arranged on the second rotating shaft, and the third gear and the fourth gear are coaxially and fixedly arranged on the second rotating shaft;
the fixed transmission assembly comprises a fifth gear, a third rotating shaft, a sixth gear and a half-tooth rod, the half-tooth rod is coaxially and rotatably arranged on the third rotating shaft, meanwhile, the half-tooth rod slides in the axial direction of the third rotating shaft, and the fifth gear and the sixth gear are coaxially and fixedly arranged on the third rotating shaft;
the end part of a second toothed bar on the middle transmission assembly is connected with a first toothed bar in the end transmission assembly and a half toothed bar in the fixed transmission assembly through a first connecting plate, a connecting transmission device is installed on the first connecting plate and is used for connecting the second toothed bar with the first toothed bar or the second toothed bar with the half toothed bar, two end sleeves of the second toothed bar are provided with fixing devices used for fixing the two first connecting plates together, and shaft sleeves sleeved on the two fixing devices and the half toothed bar form belt transmission.
2. A transmission capable of adjusting the center distance of a shaft according to claim 1, wherein: the first end of the second connecting plate is rotatably arranged on the second rotating shaft, the second end of the second connecting plate is rotatably and simultaneously slidably arranged on the first rotating shaft or the third rotating shaft, the numbers of teeth of the first gear, the third gear and the sixth gear are the same, the numbers of teeth of the second gear, the fourth gear and the fifth gear are the same, the numbers of teeth of the third gear and the fourth gear are the same, the third gear, the second gear and the fifth gear are positioned on the same side in the second shell, and the third gear and the fourth gear on the middle transmission assembly are respectively matched with the end portion transmission assembly and the fixed transmission assembly to form gears.
3. A transmission capable of adjusting the center distance of a shaft according to claim 1, wherein: the first rack bar and the second rack bar are provided with annular bulges, the semi-annular bulges are arranged on the semi-rack bars, the connecting transmission device comprises a transmission gear, the transmission gear is meshed with the tooth shapes of the first rack bar, the second rack bar and the semi-rack bars, the transmission gear is rotatably installed on a rotating frame, the rotating frame is fixedly installed on a first connecting plate, the rotating frame is provided with a first knob, and the first knob is slidably installed on a curved groove on the first shell.
4. A transmission capable of adjusting the center distance of a shaft according to claim 1, wherein: the first toothed bar is slidably mounted on the first connecting plate, the fixing device is rotatably mounted on the first connecting plate, the second toothed bar is slidably mounted on the fixing device, the half toothed bar is rotatably mounted inside the shaft sleeve, the shaft sleeve is rotatably mounted on the first connecting plate, and meanwhile, the half toothed bar is slidably mounted on the shaft sleeve.
5. The transmission device capable of adjusting the center distance of the shafts according to claim 4, wherein: fixing device include the rotary drum, the rotary drum rotates to be installed on first connecting plate, second gear lever slidable mounting is on the rotary drum, is equipped with the commentaries on classics round pin on the rotary drum, rotates on the commentaries on classics round pin and installs the blade, the blade middle part is equipped with the through-hole, the pivot setting is in the through-hole, be equipped with the spout on the first connecting plate, pivot slidable mounting still is equipped with on the first connecting plate and keeps off the ring in the spout, the blade is located between first connecting plate and the fender ring.
6. A transmission capable of adjusting the center distance of a shaft according to claim 1, wherein: the inner diameter of the shaft sleeve is divided into a first shaft diameter and a second shaft diameter, the circle center angle corresponding to the first shaft diameter region is 180 degrees, the circle center angle corresponding to the second shaft diameter region is 180 degrees, the first shaft diameter is larger than the second shaft diameter, a stop block is arranged on the shaft surface of the half gear rod positioned in the shaft sleeve, the distance between the top of the stop block and the axis of the half gear rod is equal to the radius of the first shaft diameter, and a second knob is fixedly installed at the end part of the half gear rod.
7. A transmission capable of adjusting the center distance of a shaft according to any one of claims 1 to 6, wherein: and the first rotating shafts are provided with keys on the shaft positioned outside the second shell, and the two first rotating shafts are respectively used for inputting and outputting power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110844873.0A CN113294497B (en) | 2021-07-26 | 2021-07-26 | Transmission device capable of adjusting shaft center distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110844873.0A CN113294497B (en) | 2021-07-26 | 2021-07-26 | Transmission device capable of adjusting shaft center distance |
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| CN113294497B true CN113294497B (en) | 2021-10-01 |
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| DE102005053867A1 (en) * | 2004-12-09 | 2006-06-14 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Motor vehicle-transmission device, has transmission actuator with electric motor, where motor or central control shaft of actuator is arranged on side of section, on which central longitudinal axis of respective shafts are situated |
| CN202165524U (en) * | 2011-07-26 | 2012-03-14 | 无锡双象橡塑机械有限公司 | Shaft distance adjusting mechanism with two output shafts |
| CN102937178A (en) * | 2012-10-31 | 2013-02-20 | 中国北方发动机研究所(天津) | Gear axis position adjustable mechanism |
| CN203856964U (en) * | 2014-04-24 | 2014-10-01 | 北华大学 | Gear transmission device with center distance adjustable |
| EP2986870A1 (en) * | 2013-04-17 | 2016-02-24 | VCST Industrial Products | Method of providing a predetermined backlash for a transmission, a method for applying a sheet of spacer material to at least part of an upright sidewall of a first toothed gear |
| CN105605202A (en) * | 2014-11-22 | 2016-05-25 | 江阴市鑫海公路机械材料有限公司 | Adjustable-wheelbase dual-output shaft driving mechanism |
| CN108223764A (en) * | 2018-03-05 | 2018-06-29 | 宁波东力传动设备有限公司 | The gear box structure and method of a kind of Variable Centre Distance |
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2021
- 2021-07-26 CN CN202110844873.0A patent/CN113294497B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005053867A1 (en) * | 2004-12-09 | 2006-06-14 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Motor vehicle-transmission device, has transmission actuator with electric motor, where motor or central control shaft of actuator is arranged on side of section, on which central longitudinal axis of respective shafts are situated |
| CN202165524U (en) * | 2011-07-26 | 2012-03-14 | 无锡双象橡塑机械有限公司 | Shaft distance adjusting mechanism with two output shafts |
| CN102937178A (en) * | 2012-10-31 | 2013-02-20 | 中国北方发动机研究所(天津) | Gear axis position adjustable mechanism |
| EP2986870A1 (en) * | 2013-04-17 | 2016-02-24 | VCST Industrial Products | Method of providing a predetermined backlash for a transmission, a method for applying a sheet of spacer material to at least part of an upright sidewall of a first toothed gear |
| CN203856964U (en) * | 2014-04-24 | 2014-10-01 | 北华大学 | Gear transmission device with center distance adjustable |
| CN105605202A (en) * | 2014-11-22 | 2016-05-25 | 江阴市鑫海公路机械材料有限公司 | Adjustable-wheelbase dual-output shaft driving mechanism |
| CN108223764A (en) * | 2018-03-05 | 2018-06-29 | 宁波东力传动设备有限公司 | The gear box structure and method of a kind of Variable Centre Distance |
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| CN113294497A (en) | 2021-08-24 |
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