CN201381922Y - Labor-saving starting device - Google Patents
Labor-saving starting device Download PDFInfo
- Publication number
- CN201381922Y CN201381922Y CN200920054794U CN200920054794U CN201381922Y CN 201381922 Y CN201381922 Y CN 201381922Y CN 200920054794 U CN200920054794 U CN 200920054794U CN 200920054794 U CN200920054794 U CN 200920054794U CN 201381922 Y CN201381922 Y CN 201381922Y
- Authority
- CN
- China
- Prior art keywords
- ratchet
- axle
- starting
- helical teeth
- starting drive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a labor-saving starting device, which comprises a starting shaft, a starting gear, a ratchet wheel and a return spring, the starting gear is sleeved at the starting shaft in an empty way and is axially limited, the centre of the ratchet wheel is provided with a shaft hole, the starting shaft is sleeved in the shaft hole, the ratchet wheel is relative to the starting gear, and the relative surface is provided with the matching ratchets, the return spring is connected with the starting shaft; the shaft hole of the ratchet wheel is provided with helical teeth, the starting shaft is provided with starting shaft helical teeth which are matched with the ratchet wheel helical teeth, the direction of the ratchet wheel helical teeth is contrary to the direction of the ratchets on the ratchet wheel. The labor-saving starting device cancels a ratchet wheel spring, therefore, the torque moment of the ratchet wheel spring is no need to overcome when operating the device, and the operation is more labor-saving.
Description
Technical field
The utility model belongs to engine art, is specifically related to the laborsaving starting drive of a kind of motor.
Background technique
Starting drive is a vitals in the motor, existing engine starting gear comprises the startup axle, starter receiver, ratchet, return spring and ratchet spring, when starting, step on starting bar, starting axle rotates, starter receiver and ratchet engaged, and with engine start, after the engine start, ratchet was realized with separating by ratchet spring of starter receiver, but existing laborsaving starting drive is owing to realize separating of ratchet and starter receiver by ratchet spring, thus when stepping on starting bar, need overcome the moment of torsion of ratchet spring, not laborsaving during operation.
Summary of the invention
The purpose of this utility model is to provide a kind of engine starting gear, no longer need overcome the moment of torsion of ratchet spring during the utility model operation, and is more laborsaving during operation.
Its technological scheme is as follows:
A kind of laborsaving starting drive, comprise and start axle, starter receiver, ratchet and return spring, the starter receiver sky is enclosed within and starts on the axle and by axial limiting, the ratchet center is provided with axis hole, start axle sleeve in the axis hole of ratchet, ratchet is relative with starter receiver, and its opposing side is provided with the ratchet that matches, and return spring is connected with the startup axle; Be provided with the ratchet helical teeth on the axis hole of ratchet, start axle and be provided with the startup axis helical teeth that matches with the ratchet helical teeth, the direction of ratchet helical teeth is opposite with ratchet direction on the ratchet.
In the utility model, cancelled ratchet spring, when stepping on starting bar, start the axle rotation, owing to start between axle and the ratchet and be provided with the helical teeth that matches, so when starting the axle rotation, ratchet produces axial motion earlier and close to the starter receiver direction under the helical teeth effect, ratchet is meshed with ratchet on the starter receiver; The power that starts is successively by starting axle, ratchet, the rotation of starter receiver drive engine countershaft, and, after the engine start, start axle return under the return spring effect with engine start, be provided with the helical teeth that matches owing to start between axle and the ratchet, this moment, ratchet separated with starter receiver.This shows, because the utility model is provided with helical teeth between startup axle and ratchet, can be by helical teeth by the angle of swing control ratchet of startup axle and automatic engagement and the disengaging between the starter receiver, cancelled the ratchet spring in the existing starting drive, when engine start, no longer need to overcome the moment of torsion of ratchet spring, more laborsaving during operation.
Further structure of the present utility model is:
This starting drive also includes ratchet guide card and guide rod, and the ratchet guide card is located on the described startup axle, is provided with on the ratchet guide card along the guiding groove that starts the axle axial direction, and guide rod is flexible to be clamped in described ratchet, and the guide rod end is positioned at guiding groove.After engine start, starter receiver is in the state that runs up, if ratchet is close to starter receiver, the starter receiver that runs up can produce collision with ratchet, the damage of aggravation mechanism, even cause the accident, so after ratchet guide card and guide rod are set, can play to a certain degree guide and limit effect to ratchet, Security is higher.
Excircle at described ratchet is provided with annular groove, and described guide rod comprises the clamping part of annular, and clamping part is flexible to be clamped in the annular groove.When clamping part slides in annular groove, guide rod and ratchet between can produce to a certain degree relative displacement.
Described return spring one end is connected with described startup axle, and the other end is provided with the hook that can be connected with engine housing.When engine start, need step on starting bar, after the engine start, under the return spring effect, start axle and starting bar return.
This starting drive also includes the positioning block that can be connected with engine housing, and described startup is located on this positioning block.Positioning block is used for the startup axle is installed on engine housing.
To sum up, the utility model has the advantages that: between ratchet and startup axle, helical teeth is set, the ratchet spring in the existing starting drive of cancellation, more laborsaving during startup.
Description of drawings
Fig. 1 is a structural drawing of the present utility model;
Fig. 2 starts the sectional view that axle is gone up helical teeth;
Fig. 3 is the matching chart of ratchet guide card and guide rod;
Description of reference numerals:
1, starts axle, 2, starter receiver, 3, ratchet, 4, start axis helical teeth, 5, the ratchet guide card, 6, guide rod, 7, guiding groove, 8, clamping part, 9, annular groove, 10, return spring, 11, positioning block.
Embodiment
As shown in Figure 1 to Figure 3, a kind of laborsaving starting drive, comprise and start axle 1, starter receiver 2, ratchet 3 and return spring 10, starter receiver 2 skies are enclosed within and start on the axle 1 and by axial limiting, ratchet 3 centers are provided with axis hole, start axle 1 and are enclosed within the axis hole of ratchet 3, and ratchet 3 is relative with starter receiver 2, its opposing side is provided with the ratchet that matches, and return spring 10 is connected with startup axle 1; Be provided with the ratchet helical teeth on the axis hole of ratchet 3, start axle 1 and be provided with the startup axis helical teeth 4 that matches with the ratchet helical teeth, the direction of ratchet helical teeth is opposite with ratchet direction on the ratchet 3.
Wherein, return spring 10 1 ends are connected with startup axle 1, and the other end is provided with the hook that can be connected with engine housing; This starting drive also includes ratchet guide card 5, guide rod 6 positioning blocks 11, ratchet guide card 5 is located at and is started on the axle 1, on ratchet guide card 5, be provided with along the guiding groove 7 that starts axle 1 axial direction, guide rod 6 ends are positioned at guiding groove 7, excircle at ratchet 3 is provided with annular groove 9, guide rod 6 comprises the clamping part 8 of annular, clamping part 8 flexible being clamped in the annular groove 9; Start axle 1 and be located on the positioning block 11, positioning block 11 can be connected with engine housing.
In the utility model, cancelled ratchet spring, when stepping on starting bar, start axle 1 rotation, owing to start between axle 1 and the ratchet 3 and be provided with the helical teeth that matches, so when starting axle 1 rotation, ratchet 3 produces axial motion earlier and close to starter receiver 2 directions under the helical teeth effect, ratchet 3 is meshed with ratchet on the starter receiver 2; The power that starts drives engine countershafts and rotates by startup axle 1, ratchet 3, starter receiver 2 successively, and with engine start, after the engine start, start axle 1 return under return spring 10 effects, be provided with the helical teeth that matches owing to start between axle 1 and the ratchet 3, ratchet 3 separates with starter receiver 2 at this moment.This shows, because the utility model is provided with helical teeth between startup axle 1 and ratchet 3, can be by helical teeth by the angle of swing control ratchet 3 of startup axle 1 and automatic engagement and the disengaging between the starter receiver 2, cancelled the ratchet spring in the existing starting drive, when engine start, no longer need to overcome the moment of torsion of ratchet spring, more laborsaving during operation.After ratchet guide card 5 and guide rod 6 are set, can play to a certain degree guide and limit effect to ratchet, Security is higher.
Only be preferred embodiment of the present utility model below, do not limit protection domain of the present utility model with this; Any replacement and the improvement done on the basis of not violating the utility model design all belong to protection domain of the present utility model.
Claims (5)
1, a kind of laborsaving starting drive, comprise and start axle, starter receiver, ratchet and return spring, the starter receiver sky is enclosed within and starts on the axle and by axial limiting, the ratchet center is provided with axis hole, start axle sleeve in the axis hole of ratchet, ratchet is relative with starter receiver, and its opposing side is provided with the ratchet that matches, and return spring is connected with the startup axle; It is characterized in that, be provided with the ratchet helical teeth on the axis hole of ratchet, start axle and be provided with the startup axis helical teeth that matches with the ratchet helical teeth, the direction of ratchet helical teeth is opposite with ratchet direction on the ratchet.
2, laborsaving according to claim 1 starting drive, it is characterized in that, this starting drive also includes ratchet guide card and guide rod, the ratchet guide card is located on the described startup axle, on the ratchet guide card, be provided with along the guiding groove that starts the axle axial direction, guide rod is flexible to be clamped in described ratchet, and the guide rod end is positioned at guiding groove.
As laborsaving starting drive as described in the claim 2, it is characterized in that 3, be provided with annular groove at the excircle of described ratchet, described guide rod comprises the clamping part of annular, clamping part is flexible to be clamped in the annular groove.
4, as laborsaving starting drive as described in each in the claim 1 to 3, it is characterized in that described return spring one end is connected with described startup axle, the other end is provided with the hook that can be connected with engine housing.
5, as laborsaving starting drive as described in each in the claim 1 to 3, it is characterized in that this starting drive also includes the positioning block that can be connected with engine housing, described startup is located on this positioning block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920054794U CN201381922Y (en) | 2009-04-17 | 2009-04-17 | Labor-saving starting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920054794U CN201381922Y (en) | 2009-04-17 | 2009-04-17 | Labor-saving starting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201381922Y true CN201381922Y (en) | 2010-01-13 |
Family
ID=41525399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920054794U Expired - Fee Related CN201381922Y (en) | 2009-04-17 | 2009-04-17 | Labor-saving starting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201381922Y (en) |
-
2009
- 2009-04-17 CN CN200920054794U patent/CN201381922Y/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100113 Termination date: 20160417 |