CN202349020U - One-way gear structure for road coasting test of motor bicycle - Google Patents
One-way gear structure for road coasting test of motor bicycle Download PDFInfo
- Publication number
- CN202349020U CN202349020U CN2011204183272U CN201120418327U CN202349020U CN 202349020 U CN202349020 U CN 202349020U CN 2011204183272 U CN2011204183272 U CN 2011204183272U CN 201120418327 U CN201120418327 U CN 201120418327U CN 202349020 U CN202349020 U CN 202349020U
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- ratchet
- gear
- ratchet wheel
- spring
- groove
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Abstract
The utility model relates to a one-way gear structure for a road coasting test of a motor bicycle. The one-way gear structure comprises a gear and a ratchet wheel mechanism. A groove provided with an internal ratchet wheel is axially arranged at one end face of the gear; the ratchet wheel mechanism is mounted in the groove of the gear; the ratchet wheel mechanism comprises a ratchet wheel provided with a plurality of external ratchets, a pawl and a spring; the ratchet wheel and one end of each external ratchet are provided with arc-shaped grooves; one end of the pawl is provided with an arc-shaped fixed end, and the other end of the pawl is a free end; the arc-shaped fixed end of the pawl is rotatably fixed on the arc-shaped groove of the ratchet wheel; and one end of the spring is fixedly arranged on the ratchet wheel, and the other end of the spring pushes against the free end of the pawl. Through adoption of the one-way gear structure provided by the utility model, the motor bicycle automatically cuts off an engine transmission mechanism in a coasting process, thereby eliminating potential safety hazards and conveniently and accurately measuring road running resistance of the motor bicycle.
Description
Technical field
The utility model relates to a kind of device that is used for motorcycle road coasting test, particularly a kind of ratchet structure that is used for motorcycle road coasting test.
Background technique
Motorcycle manufacturing enterprise simulated roadway on chassis dynamometer carries out correlated performance when test to motorcycle product; Requirement reaches unanimity at the actual travel resistance that the running resistance of setting on the chassis dynamometer and motorcycle receive during in travels down, make on the chassis dynamometer can the true reappearance motorcycle the road performance performance.
The road running resistance of on road, accurately gathering motorcycle through the coast method is the necessary condition of the correct simulated roadway of chassis dynamometer.
Country's relevant laws and regulations stipulate that clearly motorcycle for cutting off engine drive mechanism, can draw with other power plant in the coasting test process.
Yet; Carry out the road coasting test of motorcycle through mode of traction, have serious potential safety hazard, therefore; How eliminating motorcycle and in the traction slide process, cause potential safety hazard because of cutting off engine drive mechanism, is present association area personnel's problem demanding prompt solution.
Summary of the invention
The purpose of the utility model is the deficiency to existing technology; A kind of ratchet structure that is used for motorcycle road coasting test is provided; It can make motorcycle in the process of sliding, cut off engine drive mechanism automatically; Eliminate potential safety hazard, measured the road running resistance of motorcycle easily and accurately.
The technological scheme of the utility model is: a kind of ratchet structure that is used for motorcycle road coasting test, comprise gear and ratchet mechanism, and an end face axial of said gear is provided with the groove of ratchet in the band; Said ratchet mechanism is installed in the groove of gear; Said ratchet mechanism comprises the ratchet with several outer ratchets, ratchet and spring, and an end of said ratchet and each outer ratchet has arc groove; One end of said ratchet is the circular arc fixed end, and the other end is a free end; The circular arc fixed end of ratchet is rotating to be fixed on the arc groove of ratchet, and an end of said spring is fixed on the ratchet, and the other end of spring withstands on the free end of ratchet.
The end of ratchet has stopping face and plane of inclination in said.
Said ratchet and gear are on same shaft axis.
The opening direction of each arc groove all is positioned at same direction, and the center line of said arc groove is parallel with the tangent to periphery of ratchet.
Adopt technique scheme: the utility model is installed on the rear-wheel spindle in the motorcycle rear gear box; One end face axial of gear is provided with the groove of ratchet in the band; Ratchet mechanism is installed in the groove of gear, and this ratchet mechanism comprises the ratchet with several outer ratchets, ratchet and spring; One end of ratchet and each outer ratchet has arc groove; The circular arc fixed end of ratchet is rotating to be fixed on the arc groove of ratchet, and an end of spring is fixed on the ratchet, and the other end of spring withstands on the free end of ratchet.Like this, in the motorcycle driving process, when driver's open up the engine; Be engine speed during greater than rear wheel rotation speed, the engine drives gear is rotated in a clockwise direction, and the free end of ratchet combines with the stopping face of the interior ratchet of gear under the elastic force effect of spring simultaneously; Ratchet is rotated with gear under the drive of ratchet in the same way; Along with the rotation of ratchet and then the trailing wheel rotation of drive motorcycle, normally combine with power system with the driving mechanism that guarantees motorcycle, realize quickening; In driver is being run at high speed process; When rapidly accelerator open degree being adjusted into zero; Engine speed is less than rear wheel rotation speed at this moment, and promptly the rotational speed of gear is less than the rotational speed of ratchet, and the plane of inclination of the interior ratchet of gear is through the free end extrusion spring of ratchet; The free end of ratchet and the interior ratchet of gear are thrown off; Still inertia rotation of ratchet simultaneously, and drive the rotation of motor cycle rear wheel inertia, thereby the timely disengagement of power system and driving mechanism before its automatic clutch is thrown off when having realized the coast of motorcycle high speed.Owing to adopt said structure; The utility model has not only been avoided measuring the risk that the motorcycle road running resistance causes through mode of traction; And delay time in several seconds of having avoided relying on speed of crankshaft to descend naturally and make the motor automatic clutch to throw off being produced when cutting off the engine power transmission; Influence the measured road running resistance of coasting test, thereby guaranteed that the utility model can measure the motorcycle road running resistance easily and accurately.
Description of drawings
Fig. 1 is the structural representation of the utility model.
In the accompanying drawing, 1 is gear, and 1a is a groove, and 2 is interior ratchet, and 2a is the stopping face, and 2b is the plane of inclination, and 3 is ratchet, and 4 is ratchet, and 4a is the circular arc fixed end, and 4b is a free end, and 5 is spring, and 6 is outer ratchet, and 7 is arc groove.
Embodiment
Referring to Fig. 1, a kind of ratchet structure that is used for motorcycle road coasting test comprises gear 1 and ratchet mechanism, and said gear 1 is installed on the rear-wheel spindle in the motorcycle rear gear box with ratchet mechanism.One end face axial of said gear 1 is provided with the groove 1a of ratchet 2 in the band, and the end of said interior ratchet 2 has stopping face 2a and plane of inclination 2b.Said ratchet mechanism is installed among the groove 1a of gear, and this ratchet mechanism comprises ratchet 3, ratchet 4 and the spring 5 with several outer ratchets 6.Said ratchet 3 and gear 1 are on same shaft axis, and an end of ratchet and each outer ratchet has arc groove 7, and the opening direction of each arc groove all is positioned at same direction, and the center line of said arc groove 7 is parallel with the tangent to periphery of ratchet 3.One end of said ratchet 4 is circular arc fixed end 4a, and the other end is free end 4b, and the circular arc fixed end 4a of ratchet is rotating to be fixed on the arc groove 7 of ratchet, and ratchet 4 can freely be rotated to the both sides of arc groove 7.One end of said spring 5 is fixed on the ratchet 3, and the other end of spring 5 withstands on the free end 4b of ratchet, and make between free end 4b and the ratchet 3 of ratchet and form precompression, thus can self-return after the free end 4b of ratchet is extruded.
During use, the utility model is installed on the rear-wheel spindle in the motorcycle rear gear box, in the motorcycle driving process; When driver's open up the engine; Be engine speed during greater than rear wheel rotation speed, the engine drives gear is rotated in a clockwise direction, and the free end of ratchet combines with the stopping face of the interior ratchet of gear under the elastic force effect of spring simultaneously; Ratchet is rotated with gear under the drive of ratchet in the same way; Along with the rotation of ratchet and then the trailing wheel rotation of drive motorcycle, normally combine with power system with the driving mechanism that guarantees motorcycle, realize quickening; In driver is being run at high speed process; When rapidly accelerator open degree being adjusted into zero; Engine speed is less than rear wheel rotation speed at this moment, and promptly the rotational speed of gear is less than the rotational speed of ratchet, and the plane of inclination of the interior ratchet of gear is through the free end extrusion spring of ratchet; The free end of ratchet and the interior ratchet of gear are thrown off; Still inertia rotation of ratchet simultaneously, and drive the rotation of motor cycle rear wheel inertia, thereby the timely disengagement of power system and driving mechanism before its automatic clutch is thrown off when having realized the coast of motorcycle high speed.
Claims (4)
1. ratchet structure that is used for motorcycle road coasting test; Comprise gear (1) and ratchet mechanism; It is characterized in that: an end face axial of said gear (1) is provided with the groove (1a) of ratchet (2) in the band, and said ratchet mechanism is installed in the groove (1a) of gear, and said ratchet mechanism comprises the ratchet (3) with several outer ratchets (6); Ratchet (4) and spring (5); One end of said ratchet and each outer ratchet has arc groove (7), and an end of said ratchet (4) is circular arc fixed end (4a), and the other end is free end (4b); The circular arc fixed end (4a) of ratchet is rotating to be fixed on the arc groove (7) of ratchet, and an end of said spring (5) is fixed on the ratchet (3), and the other end of spring (5) withstands on the free end (4b) of ratchet.
2. the ratchet structure that is used for motorcycle road coasting test according to claim 1 is characterized in that: the end of ratchet (2) has stopping face (2a) and plane of inclination (2b) in said.
3. the ratchet structure that is used for motorcycle road coasting test according to claim 1 is characterized in that: said ratchet (3) and gear (1) are on same shaft axis.
4. the ratchet structure that is used for motorcycle road coasting test according to claim 1; It is characterized in that: the opening direction of each arc groove all is positioned at same direction, and the center line of said arc groove (7) is parallel with the tangent to periphery of ratchet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204183272U CN202349020U (en) | 2011-10-28 | 2011-10-28 | One-way gear structure for road coasting test of motor bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204183272U CN202349020U (en) | 2011-10-28 | 2011-10-28 | One-way gear structure for road coasting test of motor bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202349020U true CN202349020U (en) | 2012-07-25 |
Family
ID=46538027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204183272U Expired - Fee Related CN202349020U (en) | 2011-10-28 | 2011-10-28 | One-way gear structure for road coasting test of motor bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202349020U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470656A (en) * | 2013-09-17 | 2013-12-25 | 沈阳申克动力机械有限公司 | Swinging type overrunning clutch |
| CN112747049A (en) * | 2020-12-30 | 2021-05-04 | 中国航发沈阳发动机研究所 | Ratchet clutch |
| CN112747048A (en) * | 2020-12-30 | 2021-05-04 | 中国航发沈阳发动机研究所 | Pawl structure of ratchet clutch |
| CN112747047A (en) * | 2020-12-30 | 2021-05-04 | 中国航发沈阳发动机研究所 | Load balancing method of ratchet clutch |
-
2011
- 2011-10-28 CN CN2011204183272U patent/CN202349020U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470656A (en) * | 2013-09-17 | 2013-12-25 | 沈阳申克动力机械有限公司 | Swinging type overrunning clutch |
| CN112747049A (en) * | 2020-12-30 | 2021-05-04 | 中国航发沈阳发动机研究所 | Ratchet clutch |
| CN112747048A (en) * | 2020-12-30 | 2021-05-04 | 中国航发沈阳发动机研究所 | Pawl structure of ratchet clutch |
| CN112747047A (en) * | 2020-12-30 | 2021-05-04 | 中国航发沈阳发动机研究所 | Load balancing method of ratchet clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20151028 |
|
| EXPY | Termination of patent right or utility model |