CN113700808A - Reduction gearbox with adjustable transmission ratio - Google Patents
Reduction gearbox with adjustable transmission ratio Download PDFInfo
- Publication number
- CN113700808A CN113700808A CN202110919598.4A CN202110919598A CN113700808A CN 113700808 A CN113700808 A CN 113700808A CN 202110919598 A CN202110919598 A CN 202110919598A CN 113700808 A CN113700808 A CN 113700808A
- Authority
- CN
- China
- Prior art keywords
- gear
- sliding sleeve
- box body
- output shaft
- transmission ratio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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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
- F16H3/20—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
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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
- F16H59/041—Ratio selector apparatus consisting of a final output mechanism, e.g. ratio selector being directly linked to a shiftfork
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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
- F16H63/30—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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention discloses a reduction gearbox with adjustable transmission ratio, which comprises a box body, wherein an output shaft and an input shaft are arranged in the box body in parallel, a first gear and a second gear are arranged at two ends of the input shaft, which are positioned in the box body, a sliding sleeve is arranged on the output shaft in a sliding manner, a moving ring which is connected with the sliding sleeve in a sliding manner is arranged at the middle position of the sliding sleeve, a third gear and a fourth gear are arranged at two ends of the sliding sleeve, the first gear is connected with the third gear in a meshing manner, and the second gear is connected with the fourth gear in a meshing manner; the box body is provided with a movable handle in a rotating mode at one end, close to the output shaft, outside the box body, the sliding sleeve is provided with a movable frame in a rotating mode at the middle position, and the other end of the movable frame is connected with the upper portion of the movable handle in a rotating mode. The reduction gearbox is simple in structure, easy to machine, manufacture and install, capable of being selected according to actual use conditions and capable of meeting requirements of various occasions due to the double-transmission-ratio design.
Description
Technical Field
The invention relates to the technical field of reduction boxes, in particular to a reduction box with an adjustable transmission ratio.
Background
The reduction gearbox is a relatively precise machine which is used for reducing the rotating speed and increasing the torque. The change of the transmission ratio is realized by changing the number, modulus, tooth number, spiral angle and the like of the gears, so as to achieve the purposes of reducing the rotating speed and increasing the torque. In the machine manufacturing, a reduction gearbox is widely needed as a transmission part between a prime motor and a working machine, although the existing reduction gearboxes are various, the structure is more complex, the volume is larger, the production and manufacturing cost of products is higher, and meanwhile, the transmission efficiency is lower. The transmission ratio of the existing reduction gearbox can not be adjusted according to requirements, and when the transmission ratio needs to be changed, only a new reduction gearbox can be redesigned, so that a large amount of funds are required, and the preparation time for using the equipment is prolonged.
Therefore, a reduction gearbox with adjustable transmission ratio is needed to solve the existing defects.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a reduction gearbox with an adjustable transmission ratio.
In order to solve the technical problems, the technical scheme provided by the invention is a reduction gearbox with adjustable transmission ratio: the gear box comprises a box body, wherein an output shaft and an input shaft are arranged in the box body in parallel, a first gear and a second gear are arranged at two ends of the input shaft, which are positioned in the box body, a sliding sleeve is arranged on the output shaft in a sliding manner, a moving ring which is connected with the sliding sleeve in a sliding manner is arranged at the middle position of the sliding sleeve, a third gear and a fourth gear are arranged at two ends of the sliding sleeve, the first gear is connected with the third gear in a meshing manner, and the second gear is connected with the fourth gear in a meshing manner;
the box body is provided with a movable handle in a rotating mode at one end, close to the output shaft, outside the box body, the sliding sleeve is provided with a movable frame in a rotating mode at the middle position, and the other end of the movable frame is connected with the upper portion of the movable handle in a rotating mode.
As an improvement, a first fixing piece matched with the moving ring is arranged on one side, close to the moving ring, of the third gear, and a second fixing piece matched with the moving ring is arranged on one side, close to the moving ring, of the fourth gear.
In an improvement, the number of teeth of the first gear is less than that of the third gear, and the number of teeth of the second gear is less than that of the fourth gear.
As an improvement, when the sliding sleeve is positioned at the middle position of the output shaft, the third gear and the fourth gear are positioned between the first gear and the second gear.
Compared with the prior art, the invention has the advantages that: the reduction gearbox is simple in structure, easy to machine, manufacture and install, capable of being selected according to actual use conditions and capable of meeting requirements of various occasions due to the double-transmission-ratio design.
Drawings
FIG. 1 is a schematic structural diagram of a reduction gearbox with adjustable transmission ratio.
FIG. 2 is a schematic structural diagram II of a reduction gearbox with adjustable transmission ratio.
FIG. 3 is a top view of the reduction box with adjustable transmission ratio of the present invention.
Fig. 4 is a cross-sectional view at a-a in fig. 3.
As shown in the figure: 1. the device comprises a box body, 2, an output shaft, 3, an input shaft, 4, a first gear, 5, a second gear, 6, a sliding sleeve, 7, a moving ring, 8, a third gear, 9, a fourth gear, 10, a movable handle, 11, a movable frame, 12, a first fixing piece, 13 and a second fixing piece.
Detailed Description
The reduction gearbox with adjustable transmission ratio of the invention is further described in detail with reference to the attached drawings.
With reference to fig. 1-4, a reduction gearbox with adjustable transmission ratio comprises a box body 1, an output shaft 2 and an input shaft 3 are arranged in the box body 1 in parallel, a first gear 4 and a second gear 5 are arranged at two ends of the input shaft 3 in the box body 1, a sliding sleeve 6 is arranged on the output shaft 2 in a sliding manner, a moving ring 7 connected with the sliding sleeve 6 in a sliding manner is arranged at the middle position of the sliding sleeve 6, a third gear 8 and a fourth gear 9 are arranged at two ends of the sliding sleeve 6, the first gear 4 is connected with the third gear in a meshing manner, and the second gear 5 is connected with the fourth gear 9 in a meshing manner;
the outer box body 1 is provided with a movable handle 10 in a rotating mode at one end close to the output shaft 2, a movable frame 11 is arranged at the middle position of the sliding sleeve 6 in a rotating mode, and the other end of the movable frame 11 is connected with the upper portion of the movable handle 10 in a rotating mode.
A first fixing piece 12 matched with the moving ring 7 is arranged on one side, close to the moving ring 7, of the third gear 8, and a second fixing piece 13 matched with the moving ring 7 is arranged on one side, close to the moving ring 7, of the fourth gear 9.
The number of teeth of the first gear 4 is less than that of the third gear 8, and the number of teeth of the second gear 5 is less than that of the fourth gear 9.
When the sliding sleeve 6 is located at the middle position of the output shaft 2, the third gear 8 and the fourth gear 9 are located between the first gear 4 and the second gear 5.
The working principle of the invention is as follows: before use, according to the specific application, the proper transmission ratio is determined to be selected, when the movable handle 10 arranged at one end outside the box body 1 is pushed forwards, the movable frame 11 is in rotating connection with the movable handle 10 and the movable ring 7 is in sliding connection with the sliding sleeve 6, so that the movable ring 7 is driven to move to the first fixed part 12 and is matched with the first fixed part 12, then the movable handle 10 is pushed continuously, and the first gear 4 on the input shaft 3 is meshed with the third gear 8 on the output shaft 2 through the movement of the sliding sleeve 6 because the third gear 8 is fixedly connected to the sliding sleeve 6 and the sliding sleeve 6 is in sliding connection with the output shaft 2;
when the movable handle 10 arranged at one end outside the box body 1 is pushed backwards, the movable frame 11 is in rotating connection with the movable handle 10 and the movable ring 7 is in sliding connection with the sliding sleeve 6, so that the movable ring 7 is driven to move to the second fixing piece 1 and is matched with the second fixing piece 13, then the movable handle 10 is continuously pushed, and the fourth gear 9 is fixedly connected to the sliding sleeve 6 and the sliding sleeve 6 is in sliding connection with the output shaft 2, so that the second gear 5 on the input shaft 3 is meshed with the fourth gear 9 on the output shaft 2 through the movement of the sliding sleeve 6;
when the input shaft 3 is driven by the motor to rotate, the first gear 4 and the second gear 5 which are arranged on the input shaft 3 synchronously rotate, and the gear on the input shaft 3 is meshed with the gear on the output shaft 2 to drive the gear on the output shaft 2 to rotate, so that the output shaft 2 is driven to rotate; since the movable frame 11 is connected to the rotation of the movable ring 7, the stationary state of the movable frame 11 is maintained while the movable ring 7 rotates along with the output shaft 2.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they can devise similar structural modes and embodiments without inventively designing them without departing from the spirit of the invention, and shall fall within the scope of the invention.
Claims (4)
1. A reduction box with adjustable transmission ratio is characterized in that: the gear box comprises a box body (1), an output shaft (2) and an input shaft (3) are arranged in the box body (1) in parallel, a first gear (4) and a second gear (5) are arranged at two ends, located in the box body (1), of the input shaft (3), a sliding sleeve (6) is arranged on the output shaft (2) in a sliding mode, a moving ring (7) in sliding connection with the sliding sleeve (6) is arranged at the middle position of the sliding sleeve (6), a third gear (8) and a fourth gear (9) are arranged at two ends of the sliding sleeve (6), the first gear (4) is in meshing connection with the third gear, and the second gear (5) is in meshing connection with the fourth gear (9);
the box body (1) is provided with a movable handle (10) in a rotating mode at one end close to the output shaft (2), a movable frame (11) is arranged at the middle position of the sliding sleeve (6) in a rotating mode, and the other end of the movable frame (11) is connected with the upper portion of the movable handle (10) in a rotating mode.
2. The reduction gearbox with adjustable transmission ratio as claimed in claim 1, wherein: one side of the third gear (8) close to the moving ring (7) is provided with a first fixing piece (12) matched with the moving ring (7), and one side of the fourth gear (9) close to the moving ring (7) is provided with a second fixing piece (13) matched with the moving ring (7).
3. The reduction gearbox with adjustable transmission ratio as claimed in claim 1, wherein: the number of teeth of first gear (4) is less than the number of teeth of third gear (8), the number of teeth of second gear (5) is less than the number of teeth of fourth gear (9).
4. The reduction gearbox with adjustable transmission ratio as claimed in claim 1, wherein: when the sliding sleeve (6) is located in the middle of the output shaft (2), the third gear (8) and the fourth gear (9) are located between the first gear (4) and the second gear (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110919598.4A CN113700808A (en) | 2021-08-11 | 2021-08-11 | Reduction gearbox with adjustable transmission ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110919598.4A CN113700808A (en) | 2021-08-11 | 2021-08-11 | Reduction gearbox with adjustable transmission ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113700808A true CN113700808A (en) | 2021-11-26 |
Family
ID=78652294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110919598.4A Withdrawn CN113700808A (en) | 2021-08-11 | 2021-08-11 | Reduction gearbox with adjustable transmission ratio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113700808A (en) |
-
2021
- 2021-08-11 CN CN202110919598.4A patent/CN113700808A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20211126 |