CN114044048A - Variable transmission ratio tubular column - Google Patents
Variable transmission ratio tubular column Download PDFInfo
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- CN114044048A CN114044048A CN202111557979.9A CN202111557979A CN114044048A CN 114044048 A CN114044048 A CN 114044048A CN 202111557979 A CN202111557979 A CN 202111557979A CN 114044048 A CN114044048 A CN 114044048A
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- 230000005540 biological transmission Effects 0.000 title abstract description 14
- 238000003756 stirring Methods 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 230000035945 sensitivity Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/166—Means changing the transfer ratio between steering wheel and steering gear
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Abstract
The utility model relates to a variable drive ratio tubular column, it includes the tubular column body, the tubular column body still includes first tubular column, the second tubular column, the third tubular column and stir the subassembly, the second tubular column passes through splined connection with first tubular column, and the axial displacement of second tubular column is followed to first tubular column relatively to the second tubular column, be equipped with first gear train on the second tubular column, first gear train includes the gear of a plurality of different diameters, be equipped with the second gear train on the third tubular column, the second gear train includes the gear of a plurality of different diameters, and at least there is the gear engagement in a gear and the first gear train in the second gear train, stir the subassembly and be used for stirring the second tubular column and remove relative first tubular column, so that first gear train and second gear train switch over to the second meshing state from first meshing state. The variable transmission ratio tubular column is simple in structure, and can realize adjustment of transmission ratio through switching of different meshing states so as to meet the requirements of use under different road conditions.
Description
Technical Field
The application relates to the field of steering columns, in particular to a variable transmission ratio column.
Background
At present, the driving modes of the vehicle generally comprise a comfortable mode and a sport mode. Through the selection of different modes, the power output, the accelerator response, the suspension hardness of the vehicle and the power assisting of a steering system of the vehicle have different differences. The steering power can be calibrated and matched with different calibration parameters through the electric power steering system. But the transmission ratio of a steering system is certain, the left limit rotation turn number and the right limit rotation turn number of the steering wheel are fixed, and the steering sensitivity is improved in a motion mode to be limited.
Disclosure of Invention
The embodiment of the application provides a variable transmission ratio tubular column to it is fixed to solve the extreme number of turns of rotation about the steering wheel in the correlation technique, turns to the limited problem of sensitivity promotion under the motion mode.
In a first aspect, a variable ratio pipe string is provided, comprising a pipe string body, the pipe string body further comprising:
-a first tubular string for connection with a steering wheel;
-a second tubular string splined to the first tubular string and movable relative to the first tubular string in an axial direction of the second tubular string, the second tubular string being provided with a first gear set comprising a plurality of gears of different diameters;
-a third tubular string for connection to a steering gear, said third tubular string being provided with a second set of gears comprising a number of gears of different diameter, and at least one of the gears of the second set being in mesh with a gear of the first set;
the trip assembly is arranged on the second pipe string and is used for tripping the second pipe string to move relative to the first pipe string so as to enable the first gear set and the second gear set to be switched from a first meshing state to a second meshing state, wherein the first meshing state is that one gear in the second gear set is meshed with one gear in the first gear set, and the second meshing state is that the other gear in the first gear set is meshed with the other gear in the second gear set.
In some embodiments, the toggle assembly includes a toggle member and a connecting member, the connecting member is sleeved on the second tubular column, the second tubular column can rotate relative to the connecting member, the toggle member is disposed on the connecting member, and the toggle member can toggle the second tubular column to move relative to the first tubular column, so that the first gear set and the second gear set are switched from the first engagement state to the second engagement state, or switched from the second engagement state to the first engagement state.
In some embodiments, the toggle assembly further includes a box body, the box body is connected to the vehicle body, the box body is provided with a first groove and a second groove, the toggle member is movable relative to the box body and movable into any one of the grooves, when the toggle member is located in the first groove, the first gear set and the second gear set are in a first meshing state or a second meshing state, and when the toggle member is located in the second groove, the first gear set and the second gear set are correspondingly in the second meshing state or the first meshing state.
In some embodiments, the toggle member is rotatably disposed on the connector;
the first groove and the second groove are distributed along the left and right directions of the second pipe column, when the stirring piece is positioned in the first groove or the second groove, the edge of the first groove or the second groove supports against the stirring piece to limit the stirring piece to move along the front and back directions of the second pipe column, the box body is also provided with a third groove, and the third groove is arranged along the length direction of the second pipe column and is communicated with the first groove and the second groove;
when the stirring piece is rotated, the stirring piece can enter or be separated from the first groove, or can enter or be separated from the second groove.
In some embodiments, the connecting member includes a connecting member body and a connecting rod, the connecting member body is sleeved on the second tubular column, the second tubular column can rotate relative to the connecting member body, the connecting rod is fixed on the connecting member body, and the toggle member is sleeved on the connecting rod.
In some embodiments, the first gear set comprises a first gear and a second gear both sleeved on the second tubular string;
the second gear set comprises a third gear and a fourth gear which are sleeved on a third pipe column;
the first gear is meshed and adapted with the third gear, the second gear is meshed and adapted with the fourth gear, a first space is reserved between the third gear and the fourth gear, and when the gears in the first gear set and the gears in the second gear set are not meshed, the first gear and the second gear are located in the first space.
In some embodiments, the first gear set comprises a first gear and a second gear both sleeved on the second tubular string;
the second gear set comprises a third gear and a fourth gear which are sleeved on a third pipe column;
the first gear is meshed and adapted with the third gear, the second gear is meshed and adapted with the fourth gear, a second space is reserved between the first gear and the second gear, and when the gears in the first gear set and the gears in the second gear set are not meshed, the third gear and the fourth gear are located in the second space.
In some embodiments, the second tubular string is provided with internal splines, or the second tubular string is provided with external splines.
In some embodiments, both ends of the rack on the gear are in tapered smooth transition towards the outside.
In a second aspect, there is provided a steering mechanism comprising a variable ratio column as defined above.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides a variable transmission ratio tubular column, because the second tubular column passes through splined connection with first tubular column, there is the gear engagement in a gear and the first gear pair at least in the second gear pair, drive the second tubular column through stirring the subassembly and remove, switch over to another gear in the first gear pair and another gear engagement in the second gear pair, consequently, through the gear engagement of different diameters, can realize the regulation of transmission ratio, use under the different road conditions is satisfied.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a variable ratio pipe string provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a toggle assembly provided in the embodiment of the present application.
In the figure: 1. a first tubular string; 2. a second tubular string; 3. a third tubular string; 4. a first gear set; 41. a first gear; 42. a second gear; 5. a second gear set; 51. a third gear; 52. a fourth gear; 6. the component is stirred; 61. a toggle piece; 62. a connecting member; 621. a connector body; 622. a connecting rod; 63. a box body; 7. a first groove; 8. a second groove; 9. a third groove; 10. a first space.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
At present, the driving modes of the vehicle generally comprise a comfortable mode and a sport mode. Through the selection of different modes, the power output, the accelerator response, the suspension hardness of the vehicle and the power assisting of a steering system of the vehicle have different differences. The steering power can be calibrated and matched with different calibration parameters through the electric power steering system. But the transmission ratio of a steering system is certain, the left limit rotation turn number and the right limit rotation turn number of the steering wheel are fixed, and the steering sensitivity is improved in a motion mode to be limited.
The embodiment of the application provides a variable transmission ratio tubular column, and it is fixed to limit number of turns about can solving the steering wheel among the correlation technique, turns to the limited problem of sensitivity promotion under the motion mode.
In order to solve the technical problem, the application provides a variable transmission ratio tubular column, which comprises a tubular column body, wherein the tubular column body further comprises a first tubular column 1, a second tubular column 2, a third tubular column 3 and a shifting component 6, the first tubular column 1 is used for being connected with a steering wheel, the second tubular column 2 is connected with the first tubular column 1 through a spline, the second tubular column 2 can move along the axial direction of the second tubular column 2 relative to the first tubular column 1, the second tubular column 2 is provided with a first gear set 4, the first gear set 4 comprises gears with a plurality of different diameters, the third tubular column 3 is used for being connected with a steering gear, the third tubular column 3 is provided with a second gear set 5, the second gear set 5 comprises gears with a plurality of different diameters, at least one gear in the second gear set 5 is meshed with the gear in the first gear set 4, the shifting component 6 is arranged on the second tubular column 2, and is used for shifting the second pipe column 2 to move relative to the first pipe column 1, so that the first gear set 4 and the second gear set 5 are switched from a first meshing state to a second meshing state, wherein the first meshing state is that one gear in the second gear set 5 is meshed with one gear in the first gear set 4, and the second meshing state is that the other gear in the first gear set 4 is meshed with the other gear in the second gear set 5.
In a specific embodiment, when one gear of the second gear set 5 is meshed with one gear of the first gear set 4, the first meshing state may be defined, and when there are several gears of the second gear set 5, which one of the gears is not limited, for example, A, B, C, D, E gears exist in the first gear set 4, and a1, B1, C1, D1, and E1 five gears exist in the second gear set 5, when the a gear is meshed with the a1 gear, the first meshing state may be defined, when the B gear is meshed with the B1 gear, the first meshing state may also be defined, and when one gear of the remaining gears of the first gear set 4 is meshed with one gear of the remaining gears of the second gear set 5, the second meshing state may be defined.
And stir subassembly 6 and locate on second tubular column 2 for stir second tubular column 2 removes 1 relatively first tubular column, then can switch first gear train 4 and second gear train 5 from first meshing state to second meshing state, because including the gear of different diameters in first gear train 4, consequently adjust the drive ratio through the switching of meshing state, through the switching of different diameter gears, in order to realize under the unchangeable prerequisite of wheel corner, the number of turns of steering wheel significantly reduces or increases, improve and turn to the sensitivity or reduce and turn to the sensitivity.
And in this application, first gear train 4 and second gear train 5 all set up on the tubular column body, consequently when the switching state, required space is smaller, and more convenient when maintaining, and the assembly is more convenient, and maintainability is better (wholly in the cabin, need not the machine of lifting during the maintenance).
Further, the toggle assembly 6 includes a toggle member 61 and a connecting member 62, the connecting member 62 is sleeved on the second pipe column 2, the second pipe column 2 can rotate relative to the connecting member 62, the toggle member 61 is disposed on the connecting member 62, and the toggle member 61 can toggle the second pipe column 2 to move relative to the first pipe column 1, so that the first gear set 4 and the second gear set 5 are switched from the first engagement state to the second engagement state, or switched from the second engagement state to the first engagement state.
It should be understood that the second pipe string 2 is rotating, and the toggle assembly 6 is to be satisfied that when the second pipe string 2 rotates, the toggle assembly 6 cannot rotate, so that the connection portion of the connecting member 62 and the second pipe string 2 is a sliding arrangement, or can be implemented by using a bearing, which is preferably a bearing, so that the toggle member 61 can drive the second pipe string 2 to move, so that the first gear set 4 and the second gear set 5 are switched from the first engagement state to the second engagement state.
Furthermore, the toggle assembly 6 further comprises a box 63, the box 63 is connected to the vehicle body, the box 63 is provided with a first groove 7 and a second groove 8, the toggle member 61 can move relative to the box 63 and can move into any one of the grooves, when the toggle member 61 is located in the first groove 7, the first gear set 4 and the second gear set 5 are in a first meshing state, and when the toggle member 61 is located in the second groove 8, the first gear set 4 and the second gear set 5 are correspondingly in a second meshing state.
In the embodiment of the present application, by toggling the toggle piece 61, the toggle piece 61 can be switched back and forth between the two grooves, so that the first gear set 4 and the second gear set 5 are switched from the first engagement state and the second engagement state, specifically, whether to switch or not is selected according to actual conditions.
It will be understood that, when the first groove 7 and the second groove 8 should be communicated, and the first groove 7 and the second groove 8 can be one groove or two separate grooves, preferably, in this application, two grooves are preferred, that is, the first groove 7 and the second groove 8 are independent, and since the first groove 7 and the second groove 8 both have edges, the first groove 7 and the second groove 8 can also play a certain limiting role when the toggle member 61 moves to the edge position of the first groove 7 and the second groove 8.
On the basis of the previous embodiment, the toggle piece 61 is rotatably arranged on the connecting piece 62;
the first groove 7 and the second groove 8 are distributed along the left and right direction of the second pipe column 2, when the toggle piece 61 is positioned in the first groove 7 or the second groove 8, the edge of the first groove 7 or the second groove 8 supports against the toggle piece 61 to limit the toggle piece 61 to move along the second pipe column 2 in the front and back direction, the box body 63 is further provided with a third groove 9, and the third groove 9 is arranged along the length direction of the second pipe column 2 and is communicated with the first groove 7 and the second groove 8;
when the toggle piece 61 is rotated, the toggle piece 61 can enter or leave the first groove 7, or can enter or leave the second groove 8.
The shifting member 61 is rotatably disposed on the connecting member 62, preferably a bearing, so that the shifting member 61 rotates around the second tubular column 2 and can also drive the whole second tubular column 2 to move, the first groove 7 and the second groove 8 can be disposed in parallel or obliquely, in this application, preferably, the first groove 7 and the second groove 8 are distributed along the second tubular column 2 in the left-right direction and are disposed in parallel, and a third groove 9 is provided to connect the first groove 7 and the second groove 8, since the first groove 7 and the second groove 8 are distributed along the second tubular column 2 in the left-right direction, when the shifting member 61 is located in the first groove 7 or the second groove 8, the shifting member 61 can be limited from moving back and forth along the second tubular column 2, that is, the shifting member 61 is limited from moving along the length direction of the second tubular column 2, so that when the first gear set 4 and the second gear set 5 are located in the first meshing state or the second meshing state, under the condition of no manual operation, the first gear set 4 and the second gear set 5 are difficult to switch from one meshing state to the other meshing state, so the first groove 7 and the second groove 8 can also play a certain limiting role.
Specifically, the connecting piece 62 includes a connecting piece body 621 and a connecting rod 622, the connecting piece body 621 is sleeved on the second tubular column 2, the second tubular column 2 can be opposite to the connecting piece body 621, the connecting rod 622 is fixed on the connecting piece body 621, the toggle piece 61 is sleeved on the connecting rod 622.
In this embodiment, the connecting rod 622 is fixed on the connecting piece body 621, so when switching from different grooves, the toggle piece 61 needs to be able to rotate relative to the connecting rod 622.
Further, the first gear set 4 comprises a first gear 41 and a second gear 42 which are sleeved on the second pipe column 2;
the second gear set 5 comprises a third gear 51 and a fourth gear 52 which are sleeved on the third pipe column 3;
the first gear 41 is engaged with the third gear 51, the second gear 42 is engaged with the fourth gear 52, a first space 10 is reserved between the third gear 51 and the fourth gear 52, and when the gears in the first gear set 4 are not engaged with the gears in the second gear set 5, the first gear 41 and the second gear 42 are located in the first space 10.
In the present embodiment, it is preferable that the first gear set 4 includes two gears, the second gear set 5 also includes two gears, when the first gear 41 is engaged with the third gear 51, the first gear set 4 and the second gear set 5 are in the first engagement state, when the toggle assembly 6 is actuated, the second gear 42 and the fourth gear 52 are brought into a second engagement state, in the present application, that is, the first gear 41 and the second gear 42 are engaged, the third gear 51 and the fourth gear 52 are disengaged, and when the first engagement state is switched to the second engagement state, there is a disengagement phase, i.e. when the first gear 41 and the second gear 42 are located in said first space 10, when neither in the first nor in the second engagement, the gear can be conveniently maintained and replaced through the design, and the gear can be set according to actual conditions without much explanation.
When the line speeds are the same:
ω42×r42＝ω52×r52
ω42/ω52＝r52/r42＝1
assuming that the transmission ratio is 1 and the number of steering wheel strokes is 3 at this time
When the spline 41 is engaged with the spline 51,
ω41×r41＝ω51×r51
ω41/ω51＝r51/r41＝1/1.5
r41, diameter of first gear 41
r42 second gear 42 diameter
r51, third gear 51 diameter, r41 ═ 1.5r51
r52, fourth gear 52 diameter, same as r42
According to the above formula, the angular velocities are the same. This state is a normal state, matching the vehicle comfort mode, assuming a steering wheel stroke of 3 turns. When the user adopts the sport mode, he can manually dial the ratio adjusting lever 3 to disengage the second gear 42 from the third gear 51. The first gear 41 is engaged with the second gear 51. According to the above formula, the transmission ratio is now 1.5 times in comfort mode. The stroke of the steering wheel is 2 circles, so that the number of turns of the steering wheel can be greatly reduced on the premise that the turning angle of the wheel is unchanged, and the steering sensitivity is improved.
Specifically, the first gear set 4 comprises a first gear 41 and a second gear 42 which are sleeved on the second pipe column 2;
the second gear set 5 comprises a third gear 51 and a fourth gear 52 which are sleeved on the third pipe column 3;
the first gear 41 is engaged with the third gear 51, the second gear 42 is engaged with the fourth gear 52, a second space is reserved between the first gear 41 and the second gear 42, and when the gears in the first gear set 4 are not engaged with the gears in the second gear set 5, the third gear 51 and the fourth gear 52 are located in the second space.
In other words, the first gear 41 and the second gear 42 are separated, the third gear 51 and the fourth gear 52 are attached together, and when the first meshing state is switched to the second meshing state, there is a disconnection stage, that is, at this time, the third gear 51 and the fourth gear 52 are located in the second space, and at this time, they are not in the first meshing state nor in the second meshing state.
Further, an internal spline is arranged on the second pipe column 2, or an external spline is arranged on the second pipe column 2.
When the external splines are preferably arranged on the second pipe column 2, the internal splines are arranged on the first pipe column 1 correspondingly, and the first pipe column 1 is sleeved on the second pipe column 2;
when the second tubular column 2 is preferably provided with the internal spline, the external spline is correspondingly arranged on the first tubular column 1, and the second tubular column 2 is sleeved on the first tubular column 1.
In order to reduce the jerking of the gears in the process of switching the meshing, the two ends of the rack on the gears are in a tapered smooth transition towards the outside, and it can be understood that the space between two adjacent gears is narrow from the middle to the width of the outer end, so that the gears in the first gear set 4 and the gears in the second gear set 5 are conveniently meshed, especially when the first meshing state is switched to the second meshing state.
It should be understood that the cross section of the two ends of the gear may be preferably triangular, or may be an arc shape protruding outwards, which is not explained herein but provided according to the actual situation.
In an embodiment of the present application, there is provided a steering mechanism comprising a variable ratio column as in the above.
Because the adjustment of drive ratio can be realized to the drive ratio tubular column among the above-mentioned to satisfy the use under the different road conditions, consequently steering mechanism in this application can realize the adjustment of drive ratio, in order to satisfy the use under the different road conditions.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A variable ratio pipe string, comprising a pipe string body, the pipe string body further comprising:
-a first tubular string (1) for connection with a steering wheel;
-a second pipe string (2), the second pipe string (2) being splined to the first pipe string (1), and the second pipe string (2) being movable relative to the first pipe string (1) in an axial direction of the second pipe string (2), the second pipe string (2) being provided with a first gear set (4), the first gear set (4) comprising a number of gears of different diameters;
-a third pipe string (3) for connection with a steering gear, a second gear set (5) being provided on the third pipe string (3), the second gear set (5) comprising a number of gears of different diameter, and at least one gear of the second gear set (5) being in mesh with a gear of the first gear set (4);
-a toggle assembly (6), the toggle assembly (6) being provided on the second pipe string (2) and being adapted to toggle the second pipe string (2) to move relative to the first pipe string (1) such that the first gear set (4) and the second gear set (5) are switched from a first engagement state, in which one gear of the second gear set (5) is engaged with one gear of the first gear set (4), to a second engagement state, in which the other gear of the first gear set (4) is engaged with the other gear of the second gear set (5).
2. The variable ratio pipe string of claim 1, wherein:
the toggle assembly (6) comprises a toggle piece (61) and a connecting piece (62), the connecting piece (62) is sleeved on the second pipe column (2), the second pipe column (2) can rotate relative to the connecting piece (62), the toggle piece (61) is arranged on the connecting piece (62), and the toggle piece (61) can toggle the second pipe column (2) to move relative to the first pipe column (1) so that the first gear set (4) and the second gear set (5) are switched to a second meshing state from a first meshing state or are switched to the first meshing state from the second meshing state.
3. The variable ratio pipe string of claim 2, wherein:
the toggle assembly (6) further comprises a box body (63), the box body (63) is connected with a vehicle body, a first groove (7) and a second groove (8) are formed in the box body (63), the toggle member (61) can move relative to the box body (63) and can move into any one of the grooves, when the toggle member (61) is located in the first groove (7), the first gear set (4) and the second gear set (5) are in a first meshing state or a second meshing state, when the toggle member (61) is located in the second groove (8), the first gear set (4) and the second gear set (5) are correspondingly in the second meshing state or the first meshing state.
4. A variable ratio pipe string as defined in claim 3, wherein:
the poking piece (61) is rotationally arranged on the connecting piece (62);
the first groove (7) and the second groove (8) are distributed along the left and right directions of the second pipe column (2), when the stirring piece (61) is positioned in the first groove (7) or the second groove (8), the edge of the first groove (7) or the second groove (8) is abutted against the stirring piece (61) to limit the forward and backward movement of the stirring piece (61) along the second pipe column (2), the box body (63) is further provided with a third groove (9), and the third groove (9) is arranged along the length direction of the second pipe column (2) and is communicated with the first groove (7) and the second groove (8);
when the stirring piece (61) is rotated, the stirring piece (61) can enter or be separated from the first groove (7) or can enter or be separated from the second groove (8).
5. A variable ratio pipe string as claimed in any one of claims 2 to 4, wherein:
connecting piece (62) include connecting piece body (621) and connecting rod (622), connecting piece body (621) cover is established on second tubular column (2), second tubular column (2) can be relative connecting piece body (621) rotates, connecting rod (622) are fixed on connecting piece body (621), it establishes to dial movable part (61) on connecting rod (622).
6. The variable ratio pipe string of claim 1, wherein:
the first gear set (4) comprises a first gear (41) and a second gear (42) which are sleeved on the second pipe column (2);
the second gear set (5) comprises a third gear (51) and a fourth gear (52) which are sleeved on the third pipe column (3);
the first gear (41) is meshed and matched with the third gear (51), the second gear (42) is meshed and matched with the fourth gear (52), a first space (10) is reserved between the third gear (51) and the fourth gear (52), and when the gears in the first gear set (4) and the gears in the second gear set (5) are not meshed, the first gear (41) and the second gear (42) are located in the first space (10).
7. The variable ratio pipe string of claim 1, wherein:
the first gear set (4) comprises a first gear (41) and a second gear (42) which are sleeved on the second pipe column (2);
the second gear set (5) comprises a third gear (51) and a fourth gear (52) which are sleeved on the third pipe column (3);
the first gear (41) is meshed and matched with the third gear (51), the second gear (42) is meshed and matched with the fourth gear (52), a second space is reserved between the first gear (41) and the second gear (42), and when the gears in the first gear set (4) and the gears in the second gear set (5) are not meshed, the third gear (51) and the fourth gear (52) are located in the second space.
8. The variable ratio pipe string of claim 1, wherein:
and an internal spline is arranged on the second pipe column (2), or an external spline is arranged on the second pipe column (2).
9. The variable ratio pipe string of claim 1, wherein:
and two ends of the rack on the gear are in tapered smooth transition towards the outside.
10. A steering mechanism characterized by: comprising a variable ratio pipe string according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111557979.9A CN114044048A (en) | 2021-12-17 | 2021-12-17 | Variable transmission ratio tubular column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111557979.9A CN114044048A (en) | 2021-12-17 | 2021-12-17 | Variable transmission ratio tubular column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114044048A true CN114044048A (en) | 2022-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111557979.9A Pending CN114044048A (en) | 2021-12-17 | 2021-12-17 | Variable transmission ratio tubular column |
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| Country | Link |
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| CN (1) | CN114044048A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63301171A (en) * | 1987-05-29 | 1988-12-08 | Daihatsu Motor Co Ltd | Steering device |
| EP1337425A1 (en) * | 2000-11-01 | 2003-08-27 | Bishop Steering Technology Limited | Variable ratio steering gear |
| CN102303639A (en) * | 2011-07-26 | 2012-01-04 | 浙江吉利汽车研究院有限公司 | Automobile steering device |
| CN103474054A (en) * | 2013-09-04 | 2013-12-25 | 瑞安市中联电声乐器有限公司 | Gear control switch for electric guitar |
| CN107310621A (en) * | 2016-04-27 | 2017-11-03 | 长城汽车股份有限公司 | For the variable ratio steering gear of vehicle and the vehicle with it |
-
2021
- 2021-12-17 CN CN202111557979.9A patent/CN114044048A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63301171A (en) * | 1987-05-29 | 1988-12-08 | Daihatsu Motor Co Ltd | Steering device |
| EP1337425A1 (en) * | 2000-11-01 | 2003-08-27 | Bishop Steering Technology Limited | Variable ratio steering gear |
| CN102303639A (en) * | 2011-07-26 | 2012-01-04 | 浙江吉利汽车研究院有限公司 | Automobile steering device |
| CN103474054A (en) * | 2013-09-04 | 2013-12-25 | 瑞安市中联电声乐器有限公司 | Gear control switch for electric guitar |
| CN107310621A (en) * | 2016-04-27 | 2017-11-03 | 长城汽车股份有限公司 | For the variable ratio steering gear of vehicle and the vehicle with it |
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Application publication date: 20220215 |
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