CN209839088U - Novel gear type torque-changing mechanism for bicycle - Google Patents
Novel gear type torque-changing mechanism for bicycle Download PDFInfo
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- CN209839088U CN209839088U CN201920387129.0U CN201920387129U CN209839088U CN 209839088 U CN209839088 U CN 209839088U CN 201920387129 U CN201920387129 U CN 201920387129U CN 209839088 U CN209839088 U CN 209839088U
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Abstract
The utility model discloses a novel gear type variable torque mechanism of a bicycle and a working method, comprising a fixed shaft, a one-way force transmission gear, a torque conversion gear and a force storage spring; the unidirectional force transmission gear is coaxially connected with the fixed shaft through a unidirectional bearing, the unidirectional force transmission gear can rotate clockwise along the axis of the fixed shaft through the unidirectional bearing, and the unidirectional force transmission gear is in meshed connection with the torque conversion gear; a first eccentric shaft is fixedly connected to the eccentric position of the torque conversion gear, and one end of the power storage spring is rotatably connected with the first eccentric shaft; the utility model has the advantages of simple structure, this mechanism can change the steady torque output of motor into the torque output that is periodic variation, under the condition of equal motor output moment of torsion and rotational speed, makes the bicycle axis produce and is periodic outburst moment of torsion, and especially the bicycle is gone in rugged road section, and is more laborsaving.
Description
Technical Field
The utility model belongs to the transmission system field.
Background
Moped usually adopts an electric motor as power, the torque transmission of the moped is relatively constant, and the moped has the characteristic of stable operation; however, in the case of rough mountain land, uphill, etc., the instantaneous explosive torque is particularly important, and the electric bicycle often needs to increase the motor power significantly to generate explosive force.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects existing in the prior art, the utility model provides a novel gear type torque-changing mechanism of a bicycle, which is a periodical torque change.
The technical scheme is as follows: in order to achieve the purpose, the utility model discloses a novel bicycle gear type torque-changing mechanism, which comprises a fixed shaft, a unidirectional force transmission gear, a torque-changing gear and a force-storing spring; the unidirectional force transmission gear is coaxially connected with the fixed shaft through a unidirectional bearing, the unidirectional force transmission gear can rotate clockwise along the axis of the fixed shaft through the unidirectional bearing, and the unidirectional force transmission gear is in meshed connection with the torque conversion gear; the eccentric position of the torque conversion gear is fixedly connected with a first eccentric shaft, and one end of the power storage spring is rotatably connected with the first eccentric shaft.
Furthermore, a ring body is rotatably arranged on the first eccentric shaft; and one end of the power storage spring, which is close to the first eccentric shaft, is rotatably connected with the first eccentric shaft through the ring body.
Further, the transmission ratio between the one-way force transmission gear and the torque conversion gear is 1: 2.
The device further comprises a mechanism bracket, wherein the fixed shaft is welded on the mechanism bracket, and the torque conversion gear is rotatably arranged on the mechanism bracket through a bearing; the mechanism bracket is fixedly connected with a transverse shaft, and the other end of the power storage spring is connected with the transverse shaft; the length direction of the spring is perpendicular to the axis of the torque conversion gear.
Furthermore, a second eccentric shaft is arranged at the eccentric position of the one-way force transmission gear; the mechanism bracket is also rotatably provided with a bicycle middle shaft; the mechanism bracket is also fixedly provided with a rocker arm support;
the crank, the first connecting rod, the rocker arm and the second connecting rod are further included; one end of the rocker arm is hinged with the rocker arm support through a bearing, and the other end of the rocker arm is hinged with one end of the first connecting rod and one end of the second connecting rod through the bearing respectively; the other end of the first connecting rod is hinged to one end of a crank through a bearing, the other end of the crank is synchronously connected with the bicycle middle shaft, and the other end of the second connecting rod is hinged to a second eccentric shaft through a bearing.
Has the advantages that: the utility model has the advantages of simple structure, this mechanism can change the steady torque output of motor into the torque output that is periodic variation, under the condition of equal motor power, makes the bicycle axis produce and is periodic outburst moment of torsion, and the bicycle of being convenient for goes in rugged road section, and is more laborsaving.
Drawings
FIG. 1 is a schematic view of the single-direction force transmission gear and the torque conversion gear of the present invention;
fig. 2 is a schematic diagram of the transmission mechanism.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The novel gear type torque-changing mechanism of the bicycle as shown in the attached figures 1 and 2 comprises a fixed shaft 11, a one-way force transmission gear 10, a torque-changing gear 9 and a force-storing spring 2; the unidirectional force transmission gear 10 is coaxially connected with the fixed shaft 11 through a unidirectional bearing, the unidirectional force transmission gear 10 can rotate clockwise along the axis of the fixed shaft 11 through the unidirectional bearing, and the unidirectional force transmission gear 10 is in meshed connection with the torque conversion gear 9; a first eccentric shaft 6 is fixedly connected to the eccentric position of the torque conversion gear 9, and one end of the power storage spring 2 is rotatably connected with the first eccentric shaft 6; the first eccentric shaft 6 is rotatably provided with a ring body 1; one end of the power storage spring 2 close to the first eccentric shaft 6 is rotatably connected with the first eccentric shaft 6 through the ring body 1; the transmission ratio between the unidirectional force transmission gear 10 and the torque conversion gear 9 of the embodiment is 1: 2.
The mechanism also comprises a mechanism bracket 3, wherein the fixed shaft 11 is welded on the mechanism bracket 3, and the torque conversion gear 9 is rotatably arranged on the mechanism bracket 3 through a bearing; a cross shaft 4 is fixedly connected to the mechanism bracket 3, and the other end of the power storage spring 2 is connected with the cross shaft 4; the longitudinal direction of the spring 2 is perpendicular to the axis of the torque conversion gear 9.
A second eccentric shaft 30 is further arranged at the eccentric position of the unidirectional force transmission gear 10; the mechanism bracket 3 is also rotatably provided with a bicycle middle shaft 51; the mechanism bracket 3 is also fixedly provided with a rocker arm support 31;
also comprises a crank 18, a first connecting rod 19, a rocker arm 20 and a second connecting rod 22; one end of the rocker arm 20 is hinged with the rocker arm support 31 through a bearing, and the other end of the rocker arm 20 is hinged with one end of the first connecting rod 19 and one end of the second connecting rod 22 through bearings respectively; the other end of the first connecting rod 19 is hinged with one end of a crank 18 through a bearing, the other end of the crank 18 is synchronously connected with the bicycle middle shaft 51, and the other end of the second connecting rod 22 is hinged with the second eccentric shaft 30 through a bearing.
The torque-changing working process and the technical progress arrangement thereof of the embodiment are as follows:
the motor with constant torque continuously drives the bicycle middle shaft 51 to rotate, and then the bicycle middle shaft 51 drives the crank 18 to rotate, and then the crank 18 drives the rocker arm 20 through the first connecting rod 19, and then the rocker arm 20 drives the second connecting rod 22, and then the second connecting rod 22 drives the force transmission gear 10 to rotate clockwise through the second eccentric shaft 30;
meanwhile, the one-way force transmission gear 10 drives the torque conversion gear 9 to do meshing motion, as shown in the attached drawing 1, the one-way force transmission gear 10 rotates clockwise, then the one-way force transmission gear 10 meshes to drive the torque conversion gear 9 to rotate anticlockwise, when the eccentric shaft 6 on the torque conversion gear 9 rotates anticlockwise on a solid line semicircular track shown by a reference numeral 7, the force storage spring 2 can be gradually lengthened, then the tensile force of the force storage spring 2 forms resistance to the rotation of the torque conversion gear 9, then the torque conversion gear 9 forms resistance to the meshed one-way force transmission gear 10 at the moment, so that the load of the bicycle middle axle 51 is formed, further the output torque of the bicycle middle axle 51 is temporarily weakened, but the force storage spring 2 in the process is lengthened, and further elastic potential energy is stored in the process;
with the continuous rotation of the torque converting gear 9, when the eccentric shaft 6 on the torque converting gear 9 rotates counterclockwise on the dashed semicircular track shown by the reference numeral 8, the force storage spring 2 will gradually shorten, and then the pulling force of the force storage spring 2 in this state forms the driving force for the rotation of the torque converting gear 9, and then the torque converting gear 9 at this time forms the driving force for the engaged one-way force transmitting gear 10, and further forms the driving force for the bicycle middle shaft 51, which is equivalent to the bicycle middle shaft 51 simultaneously receiving the driving force of the torque converting gear 9 and the driving force of the power source, so that the output torque of the bicycle middle shaft 51 can be temporarily and instantly improved, and the force storage spring 2 in the process gradually releases the elastic potential energy;
with the continuous periodic rotation of the torque-variable gear 9, the eccentric shaft 6 on the torque-variable gear 9 periodically passes through the semi-circular tracks of the solid line 7 and the dotted line 8, so that the torque-variable gear 9 periodically forms the driving force and the resistance of the bicycle bottom bracket shaft 51, and finally the output torque of the bicycle bottom bracket shaft 51 is periodically increased and decreased; therefore, the stable torque output of the motor is converted into the torque output which changes periodically, and the bicycle middle shaft 51 generates periodic explosive torque under the condition of the same motor power, so that the bicycle can run on a rugged road conveniently and saves more labor.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (5)
1. The utility model provides a novel bicycle gear formula torque converter mechanism which characterized in that: comprises a fixed shaft (11), a one-way force transmission gear (10), a torque conversion gear (9) and a force storage spring (2); the unidirectional force transmission gear (10) is coaxially connected with the fixed shaft (11) through a unidirectional bearing, the unidirectional force transmission gear (10) can rotate clockwise along the axis of the fixed shaft (11) through the unidirectional bearing, and the unidirectional force transmission gear (10) is meshed with the torque conversion gear (9); the eccentric position of the torque conversion gear (9) is fixedly connected with a first eccentric shaft (6), and one end of the power storage spring (2) is rotatably connected with the first eccentric shaft (6).
2. The novel gear type torque converter mechanism for bicycles of claim 1, which is characterized in that: the first eccentric shaft (6) is rotatably provided with a ring body (1); one end of the power storage spring (2) close to the first eccentric shaft (6) is rotatably connected with the first eccentric shaft (6) through the ring body (1).
3. The novel gear type torque converter mechanism for bicycles of claim 1, which is characterized in that: the transmission ratio between the unidirectional force transmission gear (10) and the torque conversion gear (9) is 1: 2.
4. The novel gear type torque converter mechanism for bicycles of claim 1, which is characterized in that: the mechanism is characterized by further comprising a mechanism support (3), the fixed shaft (11) is welded on the mechanism support (3), and the torque conversion gear (9) is rotatably mounted on the mechanism support (3) through a bearing; a transverse shaft (4) is fixedly connected to the mechanism support (3), and the other end of the power storage spring (2) is connected with the transverse shaft (4); the length direction of the spring (2) is vertical to the axis of the torque conversion gear (9).
5. The novel gear type torque converter mechanism for bicycles as claimed in claim 4, wherein: a second eccentric shaft (30) is further arranged at the eccentric position of the unidirectional force transmission gear (10); the mechanism bracket (3) is also rotatably provided with a bicycle middle shaft (51); a rocker arm support (31) is also fixedly arranged on the mechanism bracket (3);
the crank (18), the first connecting rod (19), the rocker arm (20) and the second connecting rod (22) are further included; one end of the rocker arm (20) is hinged with the rocker arm support (31) through a bearing, and the other end of the rocker arm (20) is hinged with one end of the first connecting rod (19) and one end of the second connecting rod (22) through bearings respectively; the other end of the first connecting rod (19) is hinged with one end of a crank (18) through a bearing, the other end of the crank (18) is synchronously connected with the bicycle middle shaft (51), and the other end of the second connecting rod (22) is hinged with a second eccentric shaft (30) through a bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920387129.0U CN209839088U (en) | 2019-03-26 | 2019-03-26 | Novel gear type torque-changing mechanism for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920387129.0U CN209839088U (en) | 2019-03-26 | 2019-03-26 | Novel gear type torque-changing mechanism for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209839088U true CN209839088U (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920387129.0U Active CN209839088U (en) | 2019-03-26 | 2019-03-26 | Novel gear type torque-changing mechanism for bicycle |
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| Country | Link |
|---|---|
| CN (1) | CN209839088U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826921A (en) * | 2019-03-26 | 2019-05-31 | 陈朋 | A kind of new bicycle gear type becomes torque mechanism and its working method |
-
2019
- 2019-03-26 CN CN201920387129.0U patent/CN209839088U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826921A (en) * | 2019-03-26 | 2019-05-31 | 陈朋 | A kind of new bicycle gear type becomes torque mechanism and its working method |
| CN109826921B (en) * | 2019-03-26 | 2024-02-13 | 陈朋 | Novel gear type torque-changing mechanism of bicycle and working method thereof |
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