CN210240497U

CN210240497U - Motorcycle starting gear assembly

Info

Publication number: CN210240497U
Application number: CN201920885765.6U
Authority: CN
Inventors: Chengjian Wu; 吴承建
Original assignee: Yuhuan Xuyao Machinery Co Ltd
Current assignee: Yuhuan Xuyao Machinery Co Ltd
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-04-03
Anticipated expiration: 2029-06-13

Abstract

The utility model discloses a motorcycle starting gear subassembly belongs to motorcycle accessories technical field, including starting shaft and sector gear, seted up the through-hole on sector gear's the rotation axis, it has the starting shaft to peg graft on the through-hole, and the tip of starting shaft is equipped with the screw thread, and starting shaft and sector gear are through first nut fixed connection, and bearing housing and packing ring have been cup jointed to the axial region of starting shaft, and the packing ring is located the below of bearing housing, has reached and has reduced replacement cost, torsional spring installation more firm and laborsaving effect.

Description

Motorcycle starting gear assembly

Technical Field

The utility model relates to a motorcycle accessories technical field especially relates to a motorcycle starting gear subassembly.

Background

The starting device of the existing motorcycle is mostly composed of a starting shaft, a sector gear installed on the starting shaft, a driven shaft, a fixed shaft and a ratchet wheel, when the motorcycle is started, the starting shaft is stepped by a pedal to rotate for a certain angle (about less than 180 degrees), so that the sector gear installed on the starting shaft is meshed with the gear on the driven shaft, the driven shaft and the driven wheel on the driven shaft are driven to rotate, the ratchet wheel synchronously rotates with the driven wheel, and the ratchet wheel acts on an ignition device in a single direction, so that the motor of the motorcycle is started.

Most of the existing starting shafts are connected with sector gears installed on the starting shafts in a welding connection mode, on one hand, gear teeth of the sector gears are easy to wear in the using process, so that the whole starting gear assembly needs to be frequently replaced, and the replacement cost is increased; the starting shaft is usually sleeved with a torsion spring for resetting, so that the sector gear is usually provided with a semicircular groove at the side edge for hanging the torsion spring, and after the torsion spring is sleeved on the starting shaft and installed, the hook of the torsion spring only hooks the groove part of the semicircular groove, so that the sector gear is easy to fall off; in addition, when the starting shaft rotates, the torsion spring and the shaft part of the starting shaft generate friction, after the starting shaft is used for a long time and the shaft part of the starting shaft lacks lubricating oil, the starting shaft not only wastes labor in rotating, but also generates noise easily, and the lubricating oil is added from time to bring inconvenience to a user.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. In view of this, the utility model aims at providing a motorcycle starting gear subassembly has the advantage that reduces replacement cost, torsional spring installation are more firm and laborsaving.

In order to solve the technical problem, the technical scheme of the utility model is that: the motorcycle starting gear assembly comprises a starting shaft and a sector gear, wherein a through hole is formed in the rotation axis of the sector gear, the starting shaft is inserted into the through hole, threads are arranged at the end of the starting shaft, the starting shaft is fixedly connected with the sector gear through a first nut, a bearing sleeve and a gasket are sleeved on the shaft portion of the starting shaft, and the gasket is located below the bearing sleeve.

Through the arrangement, the starting shaft is connected with the sector gear through the nut, and when the sector gear is worn after long-term use, the sector gear can be replaced independently to ensure the normal use of the assembly, so that the replacement cost is reduced; the bearing sleeve of the shaft part of the starting shaft can be sleeved with the torsion spring, so that the friction force between the torsion spring and the starting shaft is reduced, the gasket positioned below the bearing sleeve avoids the direct contact between the torsion spring and the sector gear, the friction force between the torsion spring and the sector gear is reduced, and the motorcycle rider can pedal the starting motorcycle more easily.

As a specific aspect of the present invention, it may be preferable that: one side of the sector gear is provided with a semi-circular arc bulge, and the center of the semi-circular arc bulge is provided with a torsion spring hole.

Through the arrangement, the torsion spring holes formed in the semi-circular arc protrusions can be used for hanging hooks at the end parts of the torsion springs, and the torsion springs are made to be more stable in hanging and not easy to fall off.

As a specific aspect of the present invention, it may be preferable that: the shaft part of the starting shaft is provided with an annular groove, the annular groove is positioned above the bearing sleeve, and the annular groove is sleeved with a clamp spring.

Through the setting, the annular groove provides the position of jump ring installation to the annular groove is located the top of bearing housing, and the jump ring is installed back in the annular groove, can prevent that the bearing housing from droing, if when needing to change the bearing housing, picks the jump ring, takes out original bearing housing and changes new bearing housing again, and the cover returns the jump ring at last can, and is very convenient.

As a specific aspect of the present invention, it may be preferable that: the end of the starting shaft is further provided with a second nut, and the second nut is located on the outer side of the first nut.

Through the arrangement, the first nut is matched with the second nut, and the double nuts are combined to enable the starting shaft to be installed on the sector gear not to be easy to loosen.

As a specific aspect of the present invention, it may be preferable that: and helical teeth are arranged on the outer cylindrical surface of the sector gear.

Through the arrangement, the helical teeth can be meshed with the gear on the driven shaft, so that the transmission effect is achieved.

As a specific aspect of the present invention, it may be preferable that: the wheel surface of the sector gear is provided with heat dissipation holes, and the heat dissipation holes are annularly arrayed on the wheel surface by taking the rotation axis as the center.

Through the arrangement, the sector gear can generate heat when in operation, the heat dissipation holes can effectively help the sector gear to dissipate heat, and the weight of the sector gear is lightened to a certain extent after the heat dissipation holes are formed in the wheel surface of the sector gear.

As a specific aspect of the present invention, it may be preferable that: the terminal department of skewed tooth is equipped with the stuck point, the stuck point is located sector gear and is close to the bellied edge of semicircle.

Through the setting, when sector gear drives driven gear and rotates when arriving certain angle, meshing point between the skewed tooth reachs sector gear stuck point department, and sector gear and driven gear are blocked, stall to prevented that sector gear from appearing blocking the phenomenon because of the too big sector gear that causes of angle of commentaries on classics and follow driving wheel. The stuck point sets up and is being located the bellied edge of semicircle on the sector gear, can the position that the installer differentiateed the stuck point, and it is more convenient to install.

The utility model discloses technical effect mainly embodies in following aspect: the starting shaft is connected with the sector gear through the nut, the normal use of the assembly can be ensured by independently replacing the sector gear, and the replacement cost is reduced; the bearing sleeve of the shaft part of the starting shaft can be sleeved with the torsion spring, so that the friction force between the torsion spring and the starting shaft is reduced, the gasket positioned below the bearing sleeve avoids the direct contact between the torsion spring and the sector gear, the friction force between the torsion spring and the sector gear is reduced, and the motorcycle rider saves more labor when starting the motorcycle; the torsion spring hole arranged on the semi-arc bulge can be used for hanging the hook at the end part of the torsion spring, and the torsion spring can be hung more stably and is not easy to fall off.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a top view of the sector gear of the present invention.

Reference numerals: 1. starting the shaft; 2. a sector gear; 3. a through hole; 4. a first nut; 5. a bearing housing; 6. a gasket; 7. a semicircular arc bulge; 8. a torsion spring hole; 9. an annular groove; 10. a clamp spring; 11. a second nut; 12. helical teeth; 13. heat dissipation holes; 14. and (4) stuck points.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention so that the technical solution of the present invention can be more easily understood and grasped, and should not be construed as limiting the present invention.

Examples

The utility model provides a motorcycle starting gear subassembly, it is shown with reference to fig. 1 and fig. 2, the utility model discloses a motorcycle starting gear subassembly, including starting shaft 1 and sector gear 2, seted up through-hole 3 on sector gear 2's the rotation axis, it has starting shaft 1 to peg graft on the through-hole 3, and the tip of starting shaft 1 is equipped with the screw thread, and starting shaft 1 and sector gear 2 are through 4 fixed connection of first nut, and bearing housing 5 and packing ring 6 have been cup jointed to starting shaft 1's axial region, and packing ring 6 is located the below of bearing housing 5.

The starting shaft 1 is connected with the sector gear 2 through the nut, and when the sector gear 2 is worn after long-term use, the sector gear 2 can be replaced independently to ensure the normal use of the assembly, so that the replacement cost is reduced; the bearing sleeve 5 of the shaft part of the starting shaft 1 can be sleeved with a torsion spring, so that the friction force between the torsion spring and the starting shaft 1 is reduced, the gasket 6 positioned below the bearing sleeve 5 avoids the direct contact between the torsion spring and the sector gear 2, the friction force between the torsion spring and the sector gear 2 is reduced, and the motorcycle rider can pedal the starting motorcycle more easily.

One side of the sector gear 2 is provided with a semi-circular arc bulge 7, and the center of the semi-circular arc bulge 7 is provided with a torsion spring hole 8. The torsion spring hole 8 formed in the semi-arc protrusion 7 can be used for hanging the hook at the end of the torsion spring, so that the torsion spring can be hung more stably and is not easy to fall off.

The axial region of start shaft 1 is seted up annular groove 9, and annular groove 9 is located the top of bearing housing 5, and the cover has jump ring 10 on the annular groove 9. Annular groove 9 provides the position of jump ring 10 installation to annular groove 9 is located the top of bearing housing 5, and jump ring 10 is installed back in annular groove 9, can prevent that bearing housing 5 from droing, if need to change bearing housing 5 time, picks jump ring 10, takes out original bearing housing 5 and replaces new bearing housing 5 again, and it can to overlap back jump ring 10 at last, and is very convenient.

The end of the starting shaft 1 is further provided with a second nut 11, and the second nut 11 is positioned outside the first nut 4. The first nut 4 is matched with the second nut 11, and the starting shaft 1 is not easy to loosen when being installed on the sector gear 2 due to the double-nut combination.

The outer cylindrical surface of the sector gear 2 is provided with helical teeth 12, and the helical teeth 12 can be meshed with a gear on a driven shaft to play a role in transmission.

The sector gear 2 is provided with heat dissipation holes 13 on the wheel surface, and the heat dissipation holes 13 are annularly arrayed on the wheel surface with the rotation axis as the center. The sector gear 2 generates heat when operating, the heat dissipation holes 13 can effectively help the sector gear 2 to dissipate heat, and the weight of the sector gear 2 is reduced to a certain extent after the heat dissipation holes 13 are formed in the wheel surface of the sector gear 2.

The end of the helical tooth 12 is provided with a clamping point 14, and the clamping point 14 is positioned on the edge of the sector gear 2 close to the semi-arc bulge 7. When sector gear 2 drives driven gear and rotates and reach certain angle, meshing point between 12 skewed teeth reachs sector gear 2 stuck point 14 department, and sector gear 2 and driven gear are blocked, stall to sector gear 2 has been prevented because of the too big sector gear 2 that causes of the angle of commentaries on classics from appearing blocking the phenomenon with the driven wheel. The stuck point 14 is arranged at the edge which is positioned on the sector gear 2 and is close to the semi-arc bulge 7, so that an installer can conveniently distinguish the position of the stuck point 14, and the installation is more convenient.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. The motorcycle starting gear assembly comprises a starting shaft and a sector gear and is characterized in that a through hole is formed in the rotating axis of the sector gear, the starting shaft is inserted into the through hole, threads are arranged at the end of the starting shaft, the starting shaft is fixedly connected with the sector gear through a first nut, a bearing sleeve and a gasket are sleeved on the shaft portion of the starting shaft, and the gasket is located below the bearing sleeve.

2. The motorcycle starting gear assembly as set forth in claim 1, wherein a semicircular arc protrusion is provided at one side of the sector gear, and a torsion spring hole is provided at the center of the semicircular arc protrusion.

3. The motorcycle starting gear assembly according to claim 1, wherein the shaft portion of the starting shaft is provided with an annular groove, the annular groove is positioned above the bearing sleeve, and the annular groove is sleeved with a clamp spring.

4. A motorcycle starting gear assembly according to any one of claims 1 to 3 wherein the end of the starting shaft is further provided with a second nut, the second nut being located outside the first nut.

5. A motorcycle starting gear assembly according to claim 1 or 2, wherein the sector gear is provided with helical teeth on its outer cylindrical surface.

6. The assembly of claim 1 wherein the sector gear has heat dissipating holes formed in the face of the sector gear, the heat dissipating holes being arranged in an annular array about the axis of rotation.

7. A motorcycle starting gear assembly according to claim 5 wherein the helical teeth have a point at their terminal end, the point being located on the sector gear adjacent the edge of the semi-circular projection.