CN113431873B - Bidirectional self-locking speed reducing structure - Google Patents
Bidirectional self-locking speed reducing structure Download PDFInfo
- Publication number
- CN113431873B CN113431873B CN202110707206.8A CN202110707206A CN113431873B CN 113431873 B CN113431873 B CN 113431873B CN 202110707206 A CN202110707206 A CN 202110707206A CN 113431873 B CN113431873 B CN 113431873B
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- gear
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- driving gear
- driven
- shaft
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
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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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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10D—STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
- G10D3/00—Details of, or accessories for, stringed musical instruments, e.g. slide-bars
- G10D3/20—Winding tools separate from the musical instruments, e.g. tuning keys
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Gear Transmission (AREA)
Abstract
The invention discloses a bidirectional self-locking speed reducing structure, which relates to the technical field of speed reducing structures and comprises a fixed gear base, a fixed gear, a driven gear connecting shaft, a driven gear, a driving gear shaft base, a driving gear shaft and a driving gear, wherein the fixed gear is fixed with a first end of the fixed gear base, the driven gear is fixed with a first end of the driven gear connecting shaft, a first end of the driving gear shaft is fixed with the driving gear shaft base, and the driving gear is rotatably sleeved on the periphery of a second end of the driving gear shaft. When the driving gear rotates around the fixed gear for a circle, the fixed gear does not rotate, and the driven gear also rotates along with the driving gear under the action of the driving gear due to the different tooth numbers of the fixed gear and the driven gear; when the driving gear stops rotating, the fixed gear forms self-locking to the driving gear, and then forms self-locking to the driven gear.
Description
Technical Field
The invention relates to the technical field of speed reduction structures, in particular to a bidirectional self-locking speed reduction structure.
Background
Taking a string adjusting system of a musical instrument as an example, the traditional string adjusting mechanism mostly adopts a wood shaft with taper, and is arranged in a hole with the same taper on the stringed musical instrument, so that in order to limit the tension generated by string tightening to cause the rotation of the wood shaft, a user must press the taper wood shaft with great force to cause the friction force between the taper shaft and the taper hole to be larger than the tension of the string; if the wood shaft is required to be rotated to adjust the strings, the force is larger than the friction force between the conical shaft and the conical hole, so that the strings are broken due to excessive force or the strings cannot be rotated and adjusted due to insufficient force, even the wood shaft is loosened due to the change of temperature and humidity (expansion and contraction), and the tension of the strings is instantaneously zeroed (commonly called as string running). Due to the limitations of the existing structure, tuning is a laborious and cumbersome procedure for adults, and can be difficult for minors with limited strength. What is needed is a structure that is simple to operate, easy to use, fine-tuning, and bi-directional self-locking, and that can be used for tuning strings as well as other devices with similar requirements.
Disclosure of Invention
Therefore, the invention provides a bidirectional self-locking speed reducing structure to solve the problems.
In order to achieve the above object, the present invention provides the following technical solutions:
the two-way self-locking speed reducing structure comprises a fixed gear base, a fixed gear, a driven gear connecting shaft, a driven gear, a driving gear shaft base, a driving gear shaft and a driving gear, wherein the fixed gear is fixed with the first end of the fixed gear base;
the axis of the driven gear is coaxial with the axis of the fixed gear, the driving gear shaft base can rotate around the axis of the fixed gear, the number of teeth of the fixed gear is different from that of teeth of the driven gear, a first section of the driving gear is meshed with the driven gear, a second section of the driving gear is meshed with the fixed gear, and when the driving gear shaft base rotates around the axis of the fixed gear, the driving gear rotates around the fixed gear and the driven gear.
Further, the driving gears and the driving gear shafts are provided with a plurality of driving gears and a plurality of driving gear shafts are arranged in one-to-one correspondence, and the driving gears are uniformly distributed along the circumference of the fixed gear.
Further, the bidirectional self-locking speed reducing structure further comprises a driving gear limiting piece, the driving gear limiting piece is rotatably arranged at the end part of the fixed gear base, and the second section of the driving gear is rotatably connected with the driving gear limiting piece.
Further, the bidirectional self-locking speed reducing structure further comprises a gear bin shell, a first end of the gear bin shell is fixed with the driving gear shaft base, a second end of the gear bin shell is rotatably sleeved on the periphery of the fixed gear base, and the gear bin shell is used for positioning the fixed gear, the driven gear, the driving gear shaft and the driving gear limiting piece in the gear bin shell.
Further, the bidirectional self-locking speed reducing structure further comprises a fixed sleeve, a first end of the fixed sleeve penetrates through a second end of the fixed gear base and cannot rotate relatively, the driven gear connecting shaft penetrates through the fixed sleeve in a rotatable mode, and the first end of the driven gear connecting shaft penetrates through the fixed gear and is fixedly connected with the driven gear.
Further, the bidirectional self-locking speed reducing structure further comprises a conical carrier tube, the conical carrier tube is rotatably sleeved on the peripheral side of the driven gear connecting shaft, and the second end of the fixed sleeve is arranged in the first end of the conical carrier tube in a penetrating mode and is not rotatable.
Further, the bidirectional self-locking speed reducing structure further comprises a passive rotating sleeve, the passive rotating sleeve is sleeved on the peripheral side of the passive gear connecting shaft and rotates synchronously, and the first end of the passive rotating sleeve penetrates through the second end of the conical carrier tube and can rotate relatively.
Further, the bidirectional self-locking speed reducing structure further comprises a combined screw rod, and the combined screw rod is screwed at the second end of the driven gear connecting shaft.
Further, the bidirectional self-locking speed reducing structure further comprises a combination nut, and the first end of the driving gear shaft penetrates through the driving gear shaft base and then is screwed with the combination nut.
The invention has the following advantages:
when the driving gear rotates around the fixed gear for a circle, the fixed gear does not rotate, and the driven gear also rotates along with the driving gear under the action of the driving gear due to the different tooth numbers of the fixed gear and the driven gear; when the driving gear stops rotating, the fixed gear forms self-locking to the driving gear, and then forms self-locking to the driven gear.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those skilled in the art from this disclosure that the drawings described below are merely exemplary and that other embodiments may be derived from the drawings provided without undue effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the invention, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present invention, should fall within the scope of the invention.
FIG. 1 is an exploded view of a bi-directional self-locking deceleration structure provided in accordance with an embodiment of the present invention;
FIG. 2 is a schematic perspective view of an upper portion of a bi-directional self-locking deceleration structure according to an embodiment of the present invention;
FIG. 3 is a schematic perspective view of a middle part of a bidirectional self-locking speed reducing structure according to an embodiment of the present invention;
fig. 4 is a cross-sectional view (cross-sectional line is omitted) of a lower portion of a bi-directional self-locking deceleration structure according to an embodiment of the present invention.
In the figure: the gear comprises a 1-fixed gear, a 2-fixed gear base, a 3-driven gear, a 4-driving gear, a 5-driving gear limiting piece, a 6-driving gear shaft, a 7-driving gear shaft base, an 8-gear bin shell, a 9-fixed sleeve, a 10-conical carrier tube, a 11-driven gear connecting shaft, a 12-concave flat position, a 13-locating pin, a 14-driven rotating sleeve, a 15-third groove, a 16-combined screw, a 17-fourth groove, a 18-threading hole, a 19-screw, a 20-combined nut, a 21-first groove, a 22-locating hole and a 23-second groove.
Detailed Description
Other advantages and advantages of the present invention will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terms such as "upper", "lower", "left", "right", "middle" and the like are also used in the present specification for convenience of description, but are not intended to limit the scope of the present invention, and the changes or modifications of the relative relationship thereof are considered to be within the scope of the present invention without substantial modification of the technical content.
In this embodiment, the "upper right" direction in fig. 1 is the "upper" direction in the text. As shown in fig. 1 to 4, a bidirectional self-locking speed reducing structure comprises a fixed gear base 2, a fixed gear 1, a driven gear connecting shaft 11, a driven gear 3, a driving gear shaft base 7, a driving gear shaft 6 and a driving gear 4. The fixed gear 1 is fixed with the upper end of the fixed gear base 2, the fixed gear base 2 is provided with a through hole penetrating through the upper surface and the lower surface, and the fixed gear 1 is also provided with a through hole penetrating through the upper surface and the lower surface; optionally, the fixed gear 1 may be a hollow gear combined with a circular tube, a gear may be welded and fixed at the upper end of the circular tube, a gear may be machined at the upper end of the circular tube, the lower end of the circular tube is inserted into a through hole of the fixed gear base 2, and the circular tube and the fixed gear base 2 are fixed by a pin or a screw, so that they cannot rotate; alternatively, the fixed gear 1 is in the form of an external tooth gear ring and is directly welded to the upper end of the fixed gear base 2. The upper end of the driven gear connecting shaft 11 penetrates out of the through hole of the fixed gear base 2, the lower end of the driven gear connecting shaft 11 is positioned below the fixed gear base 2, the driven gear 3 is fixed at the upper end of the driven gear connecting shaft 11, the axis of the driven gear 3 is coaxial with the axis of the fixed gear 1, and the numbers of teeth and the moduli of the fixed gear 1 and the driven gear 3 are different; generally, the driven gear 3 is sleeved on the circumference side of the driven gear connecting shaft 11; alternatively, the driven gear 3 is connected with the driven gear connecting shaft 11 through a key, so that the driven gear 3 and the driven gear connecting shaft do not rotate relatively; optionally, the driven gear connecting shaft 11 is provided with a concave flat position 12, and a convex flat position which is adapted to the flat position is arranged at the central hole of the driven gear 3, so that the driven gear connecting shaft and the driven gear connecting shaft do not rotate relatively; alternatively, the upper end of the driven gear connecting shaft 11 passes through the driving gear shaft base 7, the driven gear 3 is located below the driving gear shaft base 7, and at this time, a screw 19 is provided at the upper end of the driven gear connecting shaft 11, and a combination nut 20 is screwed on the screw 19. The driving gear shaft base 7 can rotate around the axis of the fixed gear 1, the driving gear shaft base 7 is provided with shaft penetrating holes, the shaft penetrating holes are provided with a plurality of shaft penetrating holes, the shaft penetrating holes are uniformly distributed along the circumferential direction of the axis of the driven gear 4, the upper end of the driving gear shaft 6 is fixed in the shaft penetrating holes of the driving gear shaft base 7, each shaft penetrating hole is penetrated with one driving gear shaft 6, the lower end of each driving gear shaft 6 is rotatably sleeved with one driving gear 4, the upper section of each driving gear 4 is meshed with the driven gear 3, the lower section of each driving gear 4 is meshed with the fixed gear 1, and when the driving gear shaft base 7 rotates around the axis of the fixed gear 1, the driving gear 4 rotates around the fixed gear 1 and the driven gear 3. The gears in this embodiment may be straight or helical.
When the driving gear 4 rotates around the fixed gear 1 for one circle, the fixed gear 1 does not rotate, and the driven gear 3 also rotates along with the driving gear 4 under the action of the driving gear 4 due to the different tooth numbers of the fixed gear 1 and the driven gear 3; for example, the fixed gear 1 has 24 teeth, the driven gear 3 has 26 teeth, and when the driving gear 4 rotates 360 degrees around the fixed gear 1, the driven gear 3 rotates only 12.5/360 degrees, and the reduction ratio is 1:12.5. When the driving gear 4 stops rotating, the fixed gear 1 forms self-locking to the driving gear 4 and further forms self-locking to the driven gear 3. Taking the chord axis of the musical instrument as an example, the shell (corresponding to the gear bin shell 8) is taken as a carrier of the driving gear 4, the driving gear 4 simultaneously meshes with the fixed gear 1 and the driven gear 3, when the shell is rotated by manpower, the driving gear 4 simultaneously acts on the fixed gear 1 and the driven gear 3, and as the number of teeth (24 teeth) of the fixed gear 1 is different from the number of teeth (26 teeth) of the driven gear 3, the driving gear 4 rotates around the fixed gear 1 by only 2 teeth each time, namely 12.5/360 degrees, and the reduction ratio is 1:12.5. Since the passive gear 3 is connected to the pin through a passive rotation sleeve 14 later, a fine tuning action on the string can be performed. Because the fixed gear 1 is not rotated, the driving gear 4 is a transmission bridge of the driven gear 3, the resilience of the driven gear 3 can be prevented under the action of the fixed gear 1 even though the string has larger tension, and the driven gear 3, the rotary sleeve and the chord shaft can be forced to rotate only through the forward and reverse rotation of the driving gear 4 connected with the shell, so that the self-locking function of the chord shaft is achieved.
In order to ensure better engagement of the driving gear 4 and the fixed gear 1 and avoid deviation of the driving gear shaft 6, the bidirectional self-locking speed reducing structure further comprises a driving gear limiting piece 5, wherein the driving gear limiting piece 5 is rotatably arranged at the end part of the fixed gear base 2; in general, the rotation axis of the driving gear limiting piece 5 is collinear with the axis of the fixed gear 1; optionally, a boss is arranged at the end part of the fixed gear base 2, and the driving gear limiting piece 5 is rotatably sleeved on the boss; optionally, a convex edge is arranged at an upper position of the outer periphery side of the fixed gear base 2, and the lower end surface of the driving gear limiting piece 5 is propped against the convex edge. The lower section of the driving gear 4 is rotatably connected with a driving gear limiting piece 5; optionally, the lower extreme of driving gear 4 is equipped with the less pivot of diameter, and driving gear spacing piece 5 is equipped with the counter bore with pivot looks adaptation, and the axis of counter bore and the axis collineation of passing the shaft hole, and the pivot wears to establish in the counter bore, makes the axis of driving gear 4, driving gear axle 6 be restricted on the axis that passes shaft hole and counter bore place.
In the embodiment, the bidirectional self-locking speed reducing structure further comprises a gear bin shell 8, wherein the upper end of the gear bin shell 8 is fixed with the driving gear shaft base 7 in a buckling mode, the lower end of the gear bin shell 8 is rotatably sleeved on the periphery of the fixed gear base 2, and the fixed gear 1, the driven gear 3, the driving gear 4, the driving gear shaft 6 and the driving gear limiting piece 5 are positioned in the gear bin shell 8; optionally, the lower extreme of gear storehouse shell 8 is equipped with big through-hole, and big through-hole cover is in the outside week of fixed gear base 2, and the diameter of big through-hole is less than the diameter of protruding edge to protruding edge can prevent that gear storehouse shell 8 from upwards moving.
In a specific implementation of this embodiment, the bi-directional self-locking deceleration structure is specifically applied to tuning strings, so that the bi-directional self-locking deceleration structure further comprises a fixed sleeve 9, a conical carrier tube 10, and a passive rotating sleeve 14. The upper end of the fixed sleeve 9 is arranged in the lower end of the fixed gear base 2 in a penetrating way and can not rotate relatively; optionally, the fixed sleeve 9 is fixed with the fixed gear base 2 through a pin shaft or a screw, so that the fixed sleeve and the fixed gear base are prevented from relative rotation; optionally, the upper end of the fixed sleeve 9 is provided with a first groove 21, and the fixed gear base 2 is provided with a bump adapted to the first groove 21, and the bump is clamped with the first groove 21, so that the fixed sleeve 9 and the fixed gear base 2 cannot rotate relatively. The driven gear connecting shaft 11 rotatably penetrates through the fixed sleeve 9, and the upper end of the driven gear connecting shaft 11 penetrates through the fixed gear 1 and is fixedly connected with the driven gear 3. The conical carrier tube 10 is rotatably sleeved on the peripheral side of the driven gear connecting shaft 11, and the lower end of the fixed sleeve 9 penetrates through the upper end of the conical carrier tube 10 and cannot rotate; optionally, the lower end of the fixed sleeve 9 is provided with a second groove 23, and a pin hole corresponding to the second groove 23 is arranged on the periphery of the conical carrier tube 10, and a pin is arranged in the pin hole in a penetrating manner and penetrates through the second groove 23, so that the fixed sleeve 9 and the conical carrier tube 10 cannot rotate relatively. The driven rotating sleeve 14 is sleeved on the peripheral side of the driven gear connecting shaft 11 and synchronously rotates; optionally, a third groove 15 is provided at the upper end of the driven rotation sleeve 14, a positioning hole 22 is provided at a position of the driven gear connecting shaft 11 opposite to the third groove 15, the positioning pin 13 is inserted into the positioning hole 22, and two ends of the positioning pin 13 are located in the third groove 15, so that the driven rotation sleeve 14 and the driven gear connecting shaft 11 rotate synchronously. The upper end of the passive rotation sleeve 14 is disposed through the lower end of the tapered carrier tube 10 and is rotatable relative thereto. Optionally, the lower end of the driven gear connecting shaft 11 is located in the driven rotating sleeve 14, the lower end of the driven gear connecting shaft 11 is provided with a fourth groove 17, an internal thread is arranged in the fourth groove 17, a threading hole 18 is arranged on the driven rotating sleeve 14 corresponding to the fourth groove 17, and a combined screw 16 is screwed in the fourth groove 17, and when in use, strings are threaded through the threading hole 18 or connected with the string shaft.
While the invention has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (1)
1. The bidirectional self-locking speed reducing structure is characterized by comprising a fixed gear base, a fixed gear, a driven gear connecting shaft, a driven gear, a driving gear shaft base, a driving gear shaft and a driving gear, wherein the fixed gear is fixed with the first end of the fixed gear base, the driven gear is fixed with the first end of the driven gear connecting shaft, the first end of the driving gear shaft is fixed in a shaft penetrating hole of the driving gear shaft base, and the driving gear is rotatably sleeved on the periphery of the second end of the driving gear shaft;
the axis of the driven gear is coaxial with the axis of the fixed gear, the driving gear shaft base can rotate around the axis of the fixed gear, the teeth number and the modulus of the fixed gear and the driven gear are different, the first section of the driving gear is meshed with the driven gear, the second section of the driving gear is meshed with the fixed gear, and when the driving gear shaft base rotates around the axis of the fixed gear, the driving gear rotates around the fixed gear and the driven gear;
the two-way self-locking speed reducing structure further comprises a driving gear limiting piece, wherein the driving gear limiting piece is rotatably arranged at the end part of the fixed gear base, and the second section of the driving gear is rotatably connected with the driving gear limiting piece; the end part of the fixed gear base is provided with a boss, the driving gear limiting piece is rotatably sleeved on the boss, the rotation axis of the driving gear limiting piece is collinear with the axis of the fixed gear, the lower end of the driving gear is provided with a rotating shaft, the driving gear limiting piece is provided with a counter bore matched with the rotating shaft, the axis of the counter bore is collinear with the axis of the shaft penetrating hole, and the rotating shaft is penetrated in the counter bore;
the bidirectional self-locking speed reducing structure further comprises a gear bin shell, wherein the first end of the gear bin shell is fixed with the driving gear shaft base in a buckling mode, the second end of the gear bin shell is rotatably sleeved on the periphery of the fixed gear base, and the gear bin shell is used for positioning the fixed gear, the driven gear, the driving gear shaft and the driving gear limiting piece in the gear bin shell;
the driving gears and the driving gear shafts are respectively provided with a plurality of driving gears, the driving gears and the driving gear shafts are arranged in one-to-one correspondence, and the driving gears are uniformly distributed along the circumferential direction of the fixed gears;
the two-way self-locking speed reducing structure further comprises a fixed sleeve, wherein the first end of the fixed sleeve penetrates through the second end of the fixed gear base and can not rotate relatively, the driven gear connecting shaft penetrates through the fixed sleeve in a rotatable mode, and the first end of the driven gear connecting shaft penetrates through the fixed gear and is fixedly connected with the driven gear;
the bidirectional self-locking speed reducing structure further comprises a conical carrier pipe, the conical carrier pipe is rotatably sleeved on the periphery of the driven gear connecting shaft, and the second end of the fixed sleeve is arranged in the first end of the conical carrier pipe in a penetrating manner and is not rotatable;
the bidirectional self-locking speed reducing structure further comprises a driven rotating sleeve, the driven rotating sleeve is sleeved on the periphery of the driven gear connecting shaft and rotates synchronously, and a first end of the driven rotating sleeve penetrates through a second end of the conical carrier tube and can rotate relatively;
the bidirectional self-locking speed reducing structure further comprises a combined screw rod which is screwed at the second end of the driven gear connecting shaft;
the two-way self-locking speed reducing structure further comprises a combined nut, and the first end of the driven gear connecting shaft penetrates through the driving gear shaft base and then is screwed with the combined nut;
the upper end of the fixed sleeve is arranged in the lower end of the fixed gear base in a penetrating way and can not rotate relatively; the fixed sleeve and the fixed gear base are fixed through a pin shaft or a screw, so that the fixed sleeve and the fixed gear base are prevented from relative rotation; the upper end of the fixed sleeve is provided with a first groove, a lug matched with the first groove is arranged in the fixed gear base, and the lug is clamped with the first groove, so that the fixed sleeve and the fixed gear base cannot rotate relatively;
the driven gear connecting shaft is rotatably arranged in the fixed sleeve in a penetrating way, and the upper end of the driven gear connecting shaft penetrates through the fixed gear and is fixedly connected with the driven gear; the conical carrier tube is rotatably sleeved on the peripheral side of the driven gear connecting shaft, and the lower end of the fixed sleeve is arranged in the upper end of the conical carrier tube in a penetrating way and is not rotatable;
the lower end of the fixed sleeve is provided with a second groove, the periphery of the conical carrier tube is provided with a pin hole corresponding to the second groove, and a pin penetrates through the pin hole and passes through the second groove, so that the fixed sleeve and the conical carrier tube cannot rotate relatively;
the driven rotating sleeve is sleeved on the peripheral side of the driven gear connecting shaft and synchronously rotates; the upper end of the driven rotary sleeve is provided with a third groove, a positioning hole is formed in the position, opposite to the third groove, of the driven gear connecting shaft, a positioning pin penetrates through the positioning hole, and two ends of the positioning pin are positioned in the third groove, so that the driven rotary sleeve and the driven gear connecting shaft synchronously rotate; the upper end of the passive rotary sleeve is penetrated into the lower end of the conical carrier tube;
the lower end of the driven gear connecting shaft is positioned in the driven rotating sleeve, the lower end of the driven gear connecting shaft is provided with a fourth groove, an internal thread is arranged in the fourth groove, a threading hole is arranged on the driven rotating sleeve corresponding to the fourth groove, and the driven gear connecting shaft is screwed in the fourth groove by a combined screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110707206.8A CN113431873B (en) | 2021-06-24 | 2021-06-24 | Bidirectional self-locking speed reducing structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110707206.8A CN113431873B (en) | 2021-06-24 | 2021-06-24 | Bidirectional self-locking speed reducing structure |
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| Publication Number | Publication Date |
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| CN113431873A CN113431873A (en) | 2021-09-24 |
| CN113431873B true CN113431873B (en) | 2023-07-25 |
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| CN202110707206.8A Active CN113431873B (en) | 2021-06-24 | 2021-06-24 | Bidirectional self-locking speed reducing structure |
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Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7098562B2 (en) * | 2003-02-10 | 2006-08-29 | Siemens Vdo Automotive Corporation | Ambidextrous electronic window lift motor |
| DE102007054312B4 (en) * | 2007-11-05 | 2019-08-29 | Wittner Gmbh & Co.Kg | Fine tuning peg |
| CN202140527U (en) * | 2011-07-25 | 2012-02-08 | 张志敏 | Linear driver adopting small-teeth-difference reducing gear |
| CN102903354B (en) * | 2012-09-18 | 2014-05-07 | 成都新海星文化传播有限公司 | String fine-adjustment device |
| CN104217708A (en) * | 2014-09-12 | 2014-12-17 | 余李方 | String fine adjustment mechanism |
| CN204087765U (en) * | 2014-09-12 | 2015-01-07 | 余李方 | A kind of string micro-adjusting mechanism |
| CN204440885U (en) * | 2015-02-06 | 2015-07-01 | 张亚军 | A kind of string fine tuning structure |
| CN207676630U (en) * | 2018-01-02 | 2018-07-31 | 史琇华 | A kind of tuning knob component and the urheen containing it |
| CN109882551A (en) * | 2019-03-12 | 2019-06-14 | 北京大信高科智能科技有限公司 | A kind of single-stage big retarding compares gear reduction unit |
| CN109838509B (en) * | 2019-03-12 | 2024-03-29 | 北京大信高科智能科技有限公司 | Electric steering engine |
| CN211529590U (en) * | 2019-08-30 | 2020-09-18 | 梁志辉 | Stringed instrument, electronic tuning stringed instrument and tuning device thereof |
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