CN108953528B - Adjustable steel wire speed change mechanism - Google Patents
Adjustable steel wire speed change mechanism Download PDFInfo
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- CN108953528B CN108953528B CN201810948972.1A CN201810948972A CN108953528B CN 108953528 B CN108953528 B CN 108953528B CN 201810948972 A CN201810948972 A CN 201810948972A CN 108953528 B CN108953528 B CN 108953528B
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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
- F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
- F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
- F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
- F16H9/22—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes specially adapted for ropes
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Abstract
The invention belongs to the technical field of speed change mechanisms, and particularly relates to an adjustable steel wire speed change mechanism which comprises an input rotating shaft, a mounting shell, an output rotating shaft, a first winding wheel, a second winding wheel and a third winding wheel, wherein the first winding wheel is connected with the second winding wheel through a belt; the third winding wheel is connected with the second winding wheel through a winding steel rope; the speed-changing mechanism designed by the invention can change the winding radius of the winding steel rope which is also wound on the second winding wheel to be larger by changing the angle of the belt wound on the second winding wheel, namely, the winding speed of the winding steel rope is increased, and the rotating speed of the output rotating shaft is changed by changing the winding speed of the winding steel rope. Compared with the traditional speed change mechanism, the speed change mechanism adopts the same transmission structure to realize the transmission in any gear, so that the use efficiency of the speed change mechanism is improved; preventing waste.
Description
Technical Field
The invention belongs to the technical field of speed change mechanisms, and particularly relates to an adjustable steel wire speed change mechanism.
Background
Most of the traditional speed change mechanisms at present are driven by gears; the meshing relation of the gears is changed in the speed changing process to realize the speed changing and gear shifting functions; but in different gears, the gears used for realizing the transmission function are different, namely the gears have lower use frequency and cannot fully play the role; it is therefore necessary to design a transmission mechanism that uses the same transmission structure in different gear positions.
The invention designs an adjustable steel wire speed change mechanism to solve the problems.
Disclosure of Invention
In order to solve the defects in the prior art, the invention discloses an adjustable steel wire speed change mechanism which is realized by adopting the following technical scheme.
An adjustable steel wire speed change mechanism is characterized in that: the device comprises an input rotating shaft, an installation shell, an output rotating shaft, circular grooves, an adjusting hole, an input hole, an output hole, a first support, a first swing rod, a crank, a second swing rod, a first rotating shaft, a first winding wheel, a belt, a second winding wheel, a winding steel rope, a third winding wheel, a one-way clutch, a first gear, a second gear, a volute spiral spring, a fixed block, a fixed shaft, a driving shaft, a guide groove and a guide block, wherein the input hole and the output hole are formed in the front side surface of the installation shell, and the three circular grooves are formed in the inner rear side surface of the installation shell; the input rotating shaft is arranged on the mounting shell through the input hole; one end of the crank is arranged on the input rotating shaft and is positioned at one end of the mounting shell; one end of the second swing rod is arranged at the other end of the crank through a revolute pair; one end of the first rotating shaft is arranged in a circular hole on the front side surface in the mounting shell through a bearing; one end of the first swing rod is arranged on the first rotating shaft; the other end of the first swing rod is connected with the other end of the second swing rod through a revolute pair; the crank, the first swing rod and the second swing rod form a crank and rocker mechanism; the first gear is arranged on the first rotating shaft; a guide block is arranged on the outer circular surface of one end of the driving shaft; the other end of the driving shaft is arranged in a circular hole on the front side surface in the mounting shell through a bearing; the second gear is arranged on the driving shaft and is meshed with the first gear; three guide grooves are uniformly formed in the inner circular surface of the second winding wheel in the circumferential direction; the second winding wheel is arranged on the driving shaft through the matching of the three guide grooves and the guide block arranged on the driving shaft; one end of the second winding wheel, which is far away from the crank, is provided with a volute spiral spring, and the volute spiral spring is positioned in one circular groove in the middle of the three circular grooves; the inner end of the scroll spring is arranged on the second winding wheel, and the outer end of the scroll spring is arranged on the end surface of the corresponding circular groove; the fixed shaft is arranged in the mounting shell through a first support, and the first winding wheel is arranged on the fixed shaft; one end of the first winding wheel, which is far away from the crank, is provided with a volute spiral spring, and the volute spiral spring is positioned in one of the three circular grooves, which is close to the first support; the inner end of the scroll spring is arranged on the first winding wheel, and the outer end of the scroll spring is arranged on the end surface of the corresponding circular groove; a belt is wound on the first winding wheel, one end of the belt, which is far away from the first winding wheel, is wound on the second winding wheel, and the winding angle of the belt on the second winding wheel is 90-150 degrees in an initial state; the output rotating shaft is arranged on the mounting shell through an output hole formed in the mounting shell; the third winding wheel is arranged on the output rotating shaft through a one-way clutch and positioned at one end in the mounting shell; one end of the third winding wheel, which is far away from the output hole, is provided with a volute spiral spring, and the volute spiral spring is positioned in one of the three circular grooves, which is close to the output hole; the inner end of the scroll spring is arranged on the third winding wheel, and the outer end of the scroll spring is arranged on the end surface of the corresponding circular groove; and a winding steel rope is wound on the third winding wheel, and one end, far away from the third winding wheel, of the winding steel rope is installed on the second winding wheel through a fixing block.
The diameter of the first gear is larger than that of the second gear.
The angle of the reciprocating rotation of the driving shaft is 120 degrees under the action of the first gear, the second gear, the crank, the first swing rod and the second swing rod.
As a further improvement of the present technology, the diameter of the first gear is 2 times the diameter of the second gear.
As a further improvement of the technology, the winding angle of the belt on the second winding wheel is 120 degrees; the function is that the belt winding effect is better; the effect on the wound cord is even more pronounced.
As a further improvement of the technology, the output rotating shaft is arranged on the output hole through a bearing.
As a further improvement of the present technique, the input rotary shaft is mounted on the input hole through a bearing.
When the input rotating shaft rotates, the input rotating shaft drives the crank arranged on the input rotating shaft to rotate, and the crank rotates to drive the second oscillating bar connected with the crank to swing; the second swing rod swings to drive the first swing rod connected with the second swing rod to swing; the first swing rod swings to drive the first rotating shaft to rotate; because the crank, the first swing rod and the second swing rod form a crank and swing rod mechanism, the first swing rod can swing in a reciprocating manner through the crank and the second swing rod when the input rotating shaft rotates, namely the first rotating shaft rotates in a reciprocating manner; the first rotating shaft rotates to drive the first gear mounted on the first rotating shaft to rotate; the first gear rotates to drive the second gear meshed with the first gear to rotate; the second gear wheel rotates to drive the driving shaft to rotate; the driving shaft rotates to drive the second winding wheel to rotate in a reciprocating manner.
When the second winding wheel rotates, the second winding wheel can drive the first winding wheel to rotate through the belt; meanwhile, when the second winding wheel rotates, the second winding wheel can drive the third winding wheel to rotate through the winding steel rope; the second winding wheel rotates in a reciprocating mode, so that the belt on the first winding wheel can be gradually wound on the second winding wheel in the forward rotating process of the second winding wheel, meanwhile, the winding steel rope on the third winding wheel is gradually wound on the second winding wheel, and the belt and the winding steel rope are wound in a staggered mode; the belt is thick, so that the winding radius of the winding steel rope is gradually increased in the process of winding the belt on the second winding wheel; namely, the winding speed of the steel rope is gradually increased, namely, the rotating speed of the third winding wheel is gradually increased in the forward rotating process of the second winding wheel; namely, the rotating speed of the output rotating shaft is gradually increased; the first winding wheel, the second winding wheel and the third winding wheel compress the corresponding scroll springs in the positive rotation process of the second winding wheel; when the second winding wheel rotates reversely, the first winding wheel and the second winding wheel rotate reversely to wind the belt and the winding steel rope on the second winding wheel again under the action of the corresponding spiral spring when the belt and the winding steel rope are separated from the second winding wheel reversely by the reverse rotation of the second winding wheel; under one way clutch's effect, the third winding wheel can not drive the rotation of output pivot in the reverse direction, because at this in-process, the output pivot still is in forward rotation state, and the forward rotation of output pivot can give one way clutch inner ring resistance, because this resistance of one way clutch effect is very little makes third winding wheel antiport can not lead to the fact the influence to the rotation of output pivot. In the invention, although the rotating speed of the output rotating shaft is gradually increased in the forward rotating process of the second winding wheel, under the condition that the rotating speed of the input rotating shaft is constant, the average speed of driving the output rotating shaft to rotate by the forward rotation of the second winding wheel is the same every time.
When the average speed of the output rotating shaft driven by the forward rotation of the second winding wheel each time needs to be changed, the driving shaft is manually adjusted to rotate 120 degrees, and the guide groove on the driving shaft, which is adjacent to the original position and is positioned on the rear side, is matched with the guide block on the driving shaft; because the driving shaft rotates 120 degrees relative to the original position in the process; namely, the second winding wheel rotates 120 degrees relative to the original state; namely, the belt wound on the second winding wheel is wound by 120 degrees more than the original belt; namely, the initial winding radius of the winding steel rope is larger than that of the original winding steel rope; namely, the initial winding speed of the steel rope is higher than the original initial winding speed; that is, the average speed of the rotation of the output rotating shaft driven by the forward rotation of the second winding wheel is increased every time; i.e. a speed change function is achieved. In the invention, the three guide grooves are circumferentially and uniformly distributed; an included angle of 120 degrees is formed between every two adjacent guide grooves; therefore, the invention can realize three-level speed change; when the high-grade gear is changed into the resisting gear, the driving shaft is adjusted manually.
Compared with the traditional speed change mechanism technology, the speed change mechanism designed by the invention has the advantages that the winding radius of the winding steel rope wound on the second winding wheel is increased by changing the angle of the belt wound on the second winding wheel, namely the winding speed of the winding steel rope is increased, and the rotating speed of the output rotating shaft is changed by changing the winding speed of the winding steel rope. Compared with the traditional speed change mechanism, the speed change mechanism adopts the same transmission structure to realize the transmission in any gear, so that the use efficiency of the speed change mechanism is improved; preventing waste.
Drawings
Fig. 1 is an external view of an entire part.
Fig. 2 is a schematic view of the overall component distribution.
Fig. 3 is a schematic view of the structure of the mounting case.
Fig. 4 is a schematic view of the internal structural distribution of the integral component.
Fig. 5 is an installation schematic diagram of the internal structure of the integral component.
Fig. 6 is a schematic view of a second winding wheel arrangement.
Fig. 7 is a crank mounting schematic.
FIG. 8 is a schematic view of a belt installation.
FIG. 9 is a schematic view of a scroll spring installation.
Fig. 10 is a schematic view of the winding cord installation.
Fig. 11 is a schematic view of a first winding wheel structure.
Fig. 12 is a schematic view of a second winding wheel installation.
Fig. 13 is a schematic view of a second winding wheel structure.
Fig. 14 is a schematic view of the drive shaft structure.
Number designation in the figures: 1. an input shaft; 2. mounting a shell; 4. an output shaft; 5. a circular groove; 6. an adjustment hole; 7. an input aperture; 8. an output aperture; 9. a first support; 10. a first swing link; 11. a crank; 12. a second swing link; 13. a first rotating shaft; 14. a first winding wheel; 15. a belt; 16. a second winding wheel; 17. winding a steel rope; 18. a third winding wheel; 20. a one-way clutch; 22. a first gear; 23. a second gear; 24. a volute spiral spring; 25. a fixed block; 26. a fixed shaft; 27. a drive shaft; 28. a guide groove; 29. and a guide block.
Detailed Description
As shown in fig. 1 and 2, it includes an input rotating shaft 1, a mounting housing 2, an output rotating shaft 4, a circular groove 5, an adjusting hole 6, an input hole 7, an output hole 8, a first support 9, a first swing link 10, a crank 11, a second swing link 12, a first rotating shaft 13, a first winding wheel 14, a belt 15, a second winding wheel 16, a winding steel rope 17, a third winding wheel 18, a one-way clutch 20, a first gear 22, a second gear 23, a volute spring 24, a fixed block 25, a fixed shaft 26, a driving shaft 27, a guide groove 28, and a guide block 29, wherein as shown in fig. 3, the input hole 7 and the output hole 8 are opened on the front side of the mounting housing 2, and three circular grooves 5 are opened on the rear side inside the mounting housing 2; as shown in fig. 4 and 5, the input rotary shaft 1 is mounted on the mounting shell 2 through the input hole 7; as shown in fig. 7, one end of the crank 11 is mounted on the input rotary shaft 1 at one end of the mounting case 2; one end of the second swing link 12 is mounted at the other end of the crank 11 through a revolute pair; as shown in fig. 5, one end of the first rotating shaft 13 is mounted in a circular hole on the inner front side surface of the mounting case 2 through a bearing; as shown in fig. 7, one end of the first swing link 10 is mounted on the first rotating shaft 13; the other end of the first swing rod 10 is connected with the other end of the second swing rod 12 through a revolute pair; the crank 11, the first swing rod 10 and the second swing rod 12 form a crank 11 and swing rod mechanism; the first gear 22 is mounted on the first rotating shaft 13; as shown in fig. 14, a guide block 29 is mounted on the outer circumferential surface of one end of the driving shaft 27; as shown in fig. 5, the other end of the drive shaft 27 is mounted in a circular hole on the inner front side surface of the mounting case 2 through a bearing; as shown in fig. 6, the second gear 23 is mounted on the drive shaft 27, and the second gear 23 is meshed with the first gear 22; as shown in fig. 13, the second winding wheel 16 is circumferentially and uniformly provided with three guide grooves 28 on the inner circumferential surface; as shown in fig. 12, the second winding wheel 16 is mounted on the driving shaft 27 by the cooperation of the three guide grooves 28 with the guide blocks 29 mounted on the driving shaft 27; as shown in fig. 9, one end of the second winding wheel 16 away from the crank is mounted with a spiral spring 24, and the spiral spring 24 is located in one 5 of the three circular grooves 5 located in the middle; the inner end of the spiral spring 24 is mounted on the second winding wheel 16, and the outer end of the spiral spring 24 is mounted on the end surface of the corresponding circular groove 5; as shown in fig. 6, the fixed shaft 26 is mounted in the mounting case 2 through the first support 9, and as shown in fig. 11, the first winding wheel 14 is mounted on the fixed shaft 26; one end of the first winding wheel 14 away from the crank 11 is provided with a spiral spring 24, and the spiral spring 24 is positioned in one circular groove 5 of the three circular grooves 5 close to the first support 9; the inner end of the spiral spring 24 is mounted on the first winding wheel 14, and the outer end of the spiral spring 24 is mounted on the end surface of the corresponding circular groove 5; as shown in fig. 10, the first winding wheel 14 is wound with the belt 15, and an end of the belt 15 away from the first winding wheel 14 is wound on the second winding wheel 16, and in an initial state, a winding angle of the belt 15 on the second winding wheel 16 is 90 to 150 degrees; as shown in fig. 4 and 5, the output rotating shaft 4 is mounted on the mounting shell 2 through an output hole 8 formed on the mounting shell 2; as shown in fig. 8, the third winding wheel 18 is mounted on the output rotary shaft 4 at one end thereof in the mounting case 2 through a one-way clutch 20; as shown in fig. 9, a spiral spring 24 is installed at an end of the third winding wheel 18 far from the output hole 8, and the spiral spring 24 is located in one circular groove 5 of the three circular grooves 5 near the output hole 8; the inner end of scroll spring 24 is mounted on third winding wheel 18, and the outer end of scroll spring 24 is mounted on the end face of corresponding circular groove 5; the third winding wheel 18 is wound with a winding steel rope 17, and one end of the winding steel rope 17 far from the third winding wheel 18 is mounted on the second winding wheel 16 through a fixing block 25.
The diameter of the first gear 22 is larger than that of the second gear 23.
The angle of the reciprocating rotation of the driving shaft under the action of the first gear 22, the second gear 23, the crank 11, the first swing link 10 and the second swing link 12 is 120 degrees.
The diameter of the first gear 22 is 2 times the diameter of the second gear 23.
The winding angle of the belt 15 on the second winding wheel 16 is 120 degrees; the function is that the winding effect of the belt 15 is better; the effect on the winding of the steel cord 17 is more pronounced.
The output rotating shaft 4 is mounted on the output hole through a bearing.
The input shaft 1 is mounted on the input hole 7 through a bearing.
In summary, the following steps:
the beneficial effects of the design of the invention are as follows: the speed change mechanism changes the rotational speed of the output rotary shaft 4 by changing the winding speed of the winding wire 17 by changing the angle at which the belt 15 is wound around the second winding wheel 16 so that the winding radius of the winding wire 17 also wound around the second winding wheel 16 becomes larger, i.e., so that the winding speed of the winding wire 17 becomes larger. Compared with the traditional speed change mechanism, the speed change mechanism adopts the same transmission structure to realize the transmission in any gear, so that the use efficiency of the speed change mechanism is improved; preventing waste.
When the input rotating shaft 1 rotates, the input rotating shaft 1 can drive a crank 11 arranged on the input rotating shaft to rotate, and the crank 11 rotates to drive a second swing rod 12 connected with the crank to swing; the second swing rod 12 swings to drive the first swing rod 10 connected with the second swing rod to swing; the first swing rod 10 swings to drive the first rotating shaft 13 to rotate; because the crank 11, the first swing rod 10 and the second swing rod 12 form a crank 11 rocker mechanism, the input rotating shaft 1 rotates to enable the first swing rod 10 to swing in a reciprocating mode through the crank 11 and the second swing rod 12, namely the first rotating shaft 13 rotates in a reciprocating mode; the first rotating shaft 13 rotates to drive the first gear 22 mounted on the first rotating shaft to rotate; the first gear 22 rotates to drive the second gear 23 meshed with the first gear to rotate; the second gear 23 rotates to drive the driving shaft 27 to rotate; the rotation of the driving shaft 27 causes the second winding wheel 16 to rotate reciprocally.
When the second winding wheel 16 rotates, the second winding wheel 16 drives the first winding wheel 14 to rotate through the belt 15; meanwhile, when the second winding wheel 16 rotates, the second winding wheel 16 drives the third winding wheel 18 to rotate through the winding steel rope 17; since the second winding wheel 16 is rotated in a reciprocating manner, the belt 15 of the first winding wheel 14 is gradually wound around the second winding wheel 16 while the winding wire 17 of the third winding wheel 18 is gradually wound around the second winding wheel 16, and the belt 15 and the winding wire 17 are alternately wound in a forward direction of the second winding wheel 16; since the belt 15 is thick, the winding radius of the winding steel cord 17 is gradually increased while the belt 15 is wound on the second winding wheel 16; that is, the winding speed of the winding wire 17 is gradually increased, that is, the rotation speed of the third winding wheel 18 is gradually increased during the forward rotation of the second winding wheel 16; namely, the rotating speed of the output rotating shaft 4 is gradually increased; first winding wheel 14, second winding wheel 16 and third winding wheel 18 compress respective wrap springs 24 during forward rotation of second winding wheel 16; when the second winding wheel 16 rotates reversely, when the belt 15 and the winding wire 17 are disengaged from the second winding wheel 16 reversely by the reverse rotation of the second winding wheel 16, the first winding wheel 14 and the second winding wheel 16 rotate reversely to wind the belt 15 and the winding wire 17 thereon again under the action of the corresponding spiral spring 24; under the effect of one-way clutch 20, third winding wheel 18 can not drive output shaft 4 to rotate in the reverse direction, because at this in-process, output shaft 4 still is in the forward rotation state, and the resistance can be given to one-way clutch 20 inner ring to the forward rotation of output shaft 4, because this resistance of one-way clutch effect is very little to make third winding wheel 18 reverse rotation can not lead to the fact the influence to output shaft 4 rotates. In the present invention, although the rotation speed of the output shaft 4 is gradually increased during the forward rotation of the second winding wheel 16, the average speed of the output shaft 4 driven by the forward rotation of the second winding wheel 16 is the same each time when the input shaft rotates at a constant speed.
When the average speed of the output rotating shaft 4 driven by the forward rotation of the second winding wheel 16 is required to be changed every time, the driving shaft 27 is manually adjusted to rotate 120 degrees, and the guide groove 28 which is adjacent to the driving shaft 27 and is positioned at the rear side is matched with the guide block 29 on the driving shaft 27; since in this process the drive shaft 27 is rotated 120 degrees relative to its original position; i.e., the second winding wheel 16 is rotated by 120 degrees with respect to the original state; that is, the belt 15 wound on the second winding wheel 16 is wound by 120 degrees more than the original belt 15; namely, the initial winding radius of the winding steel rope 17 is larger than the original one; that is, the initial winding speed of the winding steel cord 17 is higher than the original initial winding speed; that is, the average speed of the output rotating shaft 4 driven by the forward rotation of the second winding wheel 16 is increased every time; i.e. a speed change function is achieved. In the invention, the three guide grooves 28 are circumferentially and uniformly distributed; an included angle of 120 degrees is formed between every two adjacent guide grooves 28; therefore, the invention can realize three-level speed change; in the present invention, when changing from high gear to resisting gear, the adjustment is made by manually adjusting the drive shaft 27.
The specific implementation mode is as follows: when the speed change mechanism designed by the invention is used, after the gear is adjusted, the input rotating shaft 1 is controlled to rotate, the input rotating shaft 1 can drive the crank 11 to rotate, and the crank 11 rotates to drive the second oscillating bar 12 to swing; the second swing link 12 swings to drive the first swing link 10 to swing; the first swing rod 10 swings to drive the first rotating shaft 13 to rotate in a reciprocating manner; the first rotating shaft 13 rotates to and fro to drive the first gear 22 to rotate; the first gear 22 rotates to and fro to drive the second gear 23 to rotate to and fro; the second gear 23 rotates to and fro to drive the driving shaft 27 to rotate to and fro; the rotation of the driving shaft 27 causes the second winding wheel 16 to rotate reciprocally. The second winding wheel 16 drives the first winding wheel 14 to rotate back and forth through the belt 15; meanwhile, when the second winding wheel 16 rotates back and forth, the second winding wheel 16 drives the third winding wheel 18 to rotate through the winding steel rope 17; the third winding wheel 18 reciprocates to rotate the output rotary shaft 4 continuously.
Claims (5)
1. An adjustable steel wire speed change mechanism is characterized in that: the device comprises an input rotating shaft, an installation shell, an output rotating shaft, circular grooves, an adjusting hole, an input hole, an output hole, a first support, a first swing rod, a crank, a second swing rod, a first rotating shaft, a first winding wheel, a belt, a second winding wheel, a winding steel rope, a third winding wheel, a one-way clutch, a first gear, a second gear, three volute spiral springs, a fixed block, a fixed shaft, a driving shaft, a guide groove and a guide block, wherein the input hole and the output hole are formed in the front side surface of the installation shell, and the three circular grooves are formed in the inner rear side surface of the installation shell; the input rotating shaft is arranged on the mounting shell through the input hole; one end of the crank is arranged on the input rotating shaft and is positioned at one end of the mounting shell; one end of the second swing rod is arranged at the other end of the crank through a revolute pair; one end of the first rotating shaft is arranged in a circular hole on the front side surface in the mounting shell through a bearing; one end of the first swing rod is arranged on the first rotating shaft; the other end of the first swing rod is connected with the other end of the second swing rod through a revolute pair; the crank, the first swing rod and the second swing rod form a crank and rocker mechanism; the first gear is arranged on the first rotating shaft; a guide block is arranged on the outer circular surface of one end of the driving shaft; the other end of the driving shaft is arranged in a circular hole on the front side surface in the mounting shell through a bearing; the second gear is arranged on the driving shaft and is meshed with the first gear; three guide grooves are uniformly formed in the inner circular surface of the second winding wheel in the circumferential direction; the second winding wheel is arranged on the driving shaft through the matching of the three guide grooves and the guide block arranged on the driving shaft; one end of the second winding wheel, which is far away from the crank, is provided with a volute spiral spring, and the volute spiral spring is positioned in one circular groove in the middle of the three circular grooves; the inner end of the scroll spring is arranged on the second winding wheel, and the outer end of the scroll spring is arranged on the end surface of the corresponding circular groove; the fixed shaft is arranged in the mounting shell through a first support, and the first winding wheel is arranged on the fixed shaft; one end of the first winding wheel, which is far away from the crank, is provided with a volute spiral spring, and the volute spiral spring is positioned in one of the three circular grooves, which is close to the first support; the inner end of the scroll spring is arranged on the first winding wheel, and the outer end of the scroll spring is arranged on the end surface of the corresponding circular groove; a belt is wound on the first winding wheel, one end of the belt, which is far away from the first winding wheel, is wound on the second winding wheel, and the winding angle of the belt on the second winding wheel is 90-150 degrees in an initial state; the output rotating shaft is arranged on the mounting shell through an output hole formed in the mounting shell; the third winding wheel is arranged on the output rotating shaft through a one-way clutch and positioned at one end in the mounting shell; one end of the third winding wheel, which is far away from the output hole, is provided with a volute spiral spring, and the volute spiral spring is positioned in one of the three circular grooves, which is close to the output hole; the inner end of the scroll spring is arranged on the third winding wheel, and the outer end of the scroll spring is arranged on the end surface of the corresponding circular groove; a winding steel rope is wound on the third winding wheel, and one end of the winding steel rope, which is far away from the third winding wheel, is installed on the second winding wheel through a fixing block;
the scroll springs arranged on the second winding wheel, the first winding wheel and the third winding wheel do not belong to the same scroll spring;
the diameter of the first gear is larger than that of the second gear;
the angle of the reciprocating rotation of the driving shaft is 120 degrees under the action of the first gear, the second gear, the crank, the first swing rod and the second swing rod.
2. An adjustable wire shifting mechanism according to claim 1, wherein: the diameter of the first gear is 2 times of that of the second gear.
3. An adjustable wire shifting mechanism according to claim 1, wherein: in the initial state, the winding angle of the belt on the second winding wheel is 120 degrees.
4. An adjustable wire shifting mechanism according to claim 1, wherein: the output rotating shaft is arranged on the output hole through a bearing.
5. An adjustable wire shifting mechanism according to claim 1, wherein: the input rotating shaft is arranged on the input hole through a bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810948972.1A CN108953528B (en) | 2018-08-20 | 2018-08-20 | Adjustable steel wire speed change mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810948972.1A CN108953528B (en) | 2018-08-20 | 2018-08-20 | Adjustable steel wire speed change mechanism |
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| Publication Number | Publication Date |
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| CN108953528A CN108953528A (en) | 2018-12-07 |
| CN108953528B true CN108953528B (en) | 2021-09-24 |
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| CN201810948972.1A Active CN108953528B (en) | 2018-08-20 | 2018-08-20 | Adjustable steel wire speed change mechanism |
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| CN105465304A (en) * | 2015-12-30 | 2016-04-06 | 中国矿业大学 | Reciprocating running speed and displacement amplifying mechanism and method |
| CN106949213A (en) * | 2017-05-12 | 2017-07-14 | 倪俊泉 | One kind amplification bent axle, corresponding actuating unit and composite power mechanism |
| CN107187315A (en) * | 2017-06-15 | 2017-09-22 | 杭州富阳新远新能源有限公司 | It is a kind of to be used for the novel energy-conserving automobile of automobile starting based on scrollwork energy storage |
| CN108150625A (en) * | 2018-01-02 | 2018-06-12 | 天津工业大学 | A kind of transmission system for automatic assembly line |
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| CN108953528A (en) | 2018-12-07 |
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