CN211398425U - Engine flywheel for lawn mower and lawn mower - Google Patents
Engine flywheel for lawn mower and lawn mower Download PDFInfo
- Publication number
- CN211398425U CN211398425U CN201921631763.0U CN201921631763U CN211398425U CN 211398425 U CN211398425 U CN 211398425U CN 201921631763 U CN201921631763 U CN 201921631763U CN 211398425 U CN211398425 U CN 211398425U
- Authority
- CN
- China
- Prior art keywords
- flywheel
- lawn mower
- engine
- gear ring
- boss
- 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
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000004411 aluminium Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009333 weeding Methods 0.000 description 1
Images
Landscapes
- Braking Arrangements (AREA)
- Harvester Elements (AREA)
Abstract
The utility model relates to an engine flywheel for lawn mower, which comprises a flywheel and a gear ring, wherein the flywheel is an aluminum flywheel, the gear ring is a punch-formed steel gear ring, and the aluminum flywheel and the steel gear ring are fixed by bolts; the utility model discloses an engine flywheel for lawn mower adopts aluminium flywheel and steel ring gear, has also guaranteed the intensity of ring gear when both having alleviateed the flywheel quality. The brake device is simple in structure, manufacturing cost can be relatively reduced under the condition that braking time is reduced, and the brake device has a good practical application effect.
Description
Technical Field
The utility model relates to a lawn mower, concretely relates to engine flywheel for lawn mower.
Background
The lawn mower is used as lawn weeding equipment, weeds can grow on the lawn inevitably due to the wide arrangement of the lawn, and the lawn mower is not selected as equipment for removing the weeds. The existing lawn mower engine is provided with a flywheel and a gear ring, wherein the flywheel is mainly a cast iron flywheel and a steel gear ring in interference fit, but the flywheel has heavy weight, so that when the engine runs, the flywheel runs at high speed, and when the lawn mower stops, the running of the flywheel is stopped by the friction between a friction block on a brake and the flywheel; the larger the mass of the flywheel is, the longer the shutdown time is, and the cost of the gear ring added by the structural form is high; in addition, the aluminum flywheel and the aluminum gear ring are adopted, the structure is light in weight, but the strength of the aluminum gear ring is low, so that the starting motor gear meshed with the aluminum flywheel can only adopt a plastic gear, the cost of the plastic gear is high, the downtime can be shortened, but the cost is high, and the product cost is not reduced.
Disclosure of Invention
In view of this, the utility model provides an engine flywheel for lawn mower has simple structure, and the down time is short and the cost of manufacture is low advantage.
The utility model provides an engine flywheel for lawn machine, including flywheel and ring gear, its characterized in that: the flywheel is an aluminum flywheel, the gear ring is a punch-formed steel gear ring, and the aluminum flywheel and the steel gear ring are fixed through bolts. By adopting the structure, the weight of the flywheel can be reduced, so that the braking time is ensured to be shortened, and the strength of the gear ring can be ensured and the manufacturing cost can be reduced due to the adoption of the steel gear ring.
Further: the aluminum flywheel is characterized in that fan blades are arranged on the front end face of the aluminum flywheel, an inward-protruding boss is arranged on the rear end face of the aluminum flywheel, an inner groove is formed in the boss from the outer side face to the inner portion, a threaded hole is formed in the inner groove, the steel gear ring is an annular gear ring, an outer boss matched with the inner groove is arranged on the inner side of the annular gear ring, and a bolt hole is formed in the outer boss. The structure can achieve the limiting purpose and also can play a role in assisting in fixing.
Further: the outer bosses are at least three and are uniformly distributed on the inner side surface of the annular gear ring. Through setting up three and above outer boss, the fixed ring gear that can be better is favorable to the cooperation of ring gear and flywheel.
Further: the outer boss is provided with four. Four machining programs can be reduced while the matching is guaranteed.
Further: the rear end face of the aluminum flywheel is provided with a central groove which is inwards concave, and the boss is arranged on the inner wall of the central groove. The structure can reduce the manufacturing materials of the flywheel, lighten the mass of the flywheel and contribute to shortening the braking time.
Further: the center of the central groove is provided with a central boss, the central boss is provided with a central hole, and the central hole is a crank handle passing through a matching hole. The structure ensures that the mass of the flywheel can be reduced after the flywheel is installed on the crank.
Further: reinforcing ribs are arranged between the outer circumference of the central boss and the inner wall of the groove. The structure can ensure the strength of the flywheel.
Further: an annular braking part is arranged between the fan blades and the steel gear ring, and the braking part is matched with a brake friction block arranged on an engine for braking. The braking part is in braking fit with the braking friction block, so that the braking time is effectively shortened.
The utility model also provides a lawn mower, lawn mower includes the engine, installs on the engine flywheel for the lawn mower. The lawn mower with the structure can reduce the stop time after being used, prolong the service life of the brake and reduce the manufacturing cost.
The utility model has the advantages that: the utility model discloses an engine flywheel for lawn mower adopts aluminium flywheel and steel ring gear, has also guaranteed the intensity of ring gear when both having alleviateed the flywheel quality. The brake device is simple in structure, manufacturing cost can be relatively reduced under the condition that braking time is reduced, and the brake device has a good practical application effect.
Drawings
The invention will be further described with reference to the following figures and examples:
FIG. 1 is a schematic structural view of a flywheel mounted on an engine of a lawn mower of the present invention;
FIG. 2 is a schematic view of a structure of a flywheel and a steel ring gear;
fig. 3 is a sectional view taken along line F-F of fig. 2.
Detailed Description
Fig. 1 is the structure schematic diagram of the engine mounting flywheel of the lawn mower of the present invention, fig. 2 is the structure schematic diagram of the flywheel and the steel gear ring, fig. 3 is the cross-sectional view of fig. 2, as shown in the figure: the utility model provides an engine flywheel for lawn mower, which is arranged on a crank 10 of a crankshaft of the engine, an engine brake 13 and an engine brake friction block 14 are arranged on the side surface of the flywheel and fixedly arranged on the engine, and a motor starting part 11 and a starting motor gear 12 meshed with the gear are arranged on the other side of the flywheel; the flywheel includes flywheel 1 and ring gear 2, the flywheel is the aluminium flywheel, the ring gear is stamping forming's steel ring gear, the aluminium flywheel passes through the bolt fastening with the steel ring gear. By adopting the structure, the weight of the flywheel can be reduced, so that the braking time is shortened, and the strength of the gear ring can be ensured and the manufacturing cost can be reduced due to the adoption of the punched steel gear ring.
In this embodiment: the aluminum flywheel is characterized in that fan blades 3 are arranged on the front end face of the aluminum flywheel, an inward-protruding boss 7 is arranged on the rear end face of the aluminum flywheel, an inner groove 8 is formed in the boss from the outer side face to the inner concave side, a threaded hole (not shown) is formed in the inner groove, the steel gear ring is an annular gear ring, the annular gear ring is formed in a stamping mode, an outer boss 15 matched with the inner groove is arranged on the inner side of the annular gear ring, and bolt holes are formed in the outer boss. The structure can achieve the limiting purpose and also can play a role in assisting in fixing.
In this embodiment: the outer bosses are at least three and are uniformly distributed on the inner side surface of the annular gear ring. Through setting up three and above outer boss, the fixed ring gear that can be better is favorable to the cooperation of ring gear and flywheel.
In this embodiment: the outer boss is provided with four. Four machining programs can be reduced while the matching is guaranteed.
In this embodiment: the rear end face of the aluminum flywheel is provided with a central groove 9 which is concave inwards, and the boss 7 is arranged on the inner wall of the central groove. The structure can reduce the manufacturing materials of the flywheel, lighten the mass of the flywheel and contribute to shortening the braking time.
In this embodiment: the center of the central groove is provided with a central boss 5, the central boss is provided with a central hole 6, and the central hole is a crank shaft passing through a matching hole. The structure ensures that the mass of the flywheel can be reduced after the flywheel is installed on the crank.
In this embodiment: and a reinforcing rib 4 is arranged between the outer circumference of the central boss and the inner wall of the central groove. The structure can ensure the strength of the flywheel.
In this embodiment: an annular braking part is arranged between the fan blades and the steel gear ring, and the braking part is matched with a brake friction block arranged on an engine for braking. Because the aluminum flywheel is adopted, the mass of the flywheel is reduced, and the braking part is in braking fit with the braking friction block in the braking process, so that the braking time is effectively shortened.
The utility model also provides a lawn mower, lawn mower includes the engine, installs on the engine flywheel for the lawn mower. The lawn mower with the structure can reduce the stop time after being used, prolong the service life of the brake and reduce the manufacturing cost.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (9)
1. The utility model provides an engine flywheel for lawn mower, includes flywheel and ring gear, its characterized in that: the flywheel is an aluminum flywheel, the gear ring is a punch-formed steel gear ring, and the aluminum flywheel and the steel gear ring are fixed through bolts.
2. The engine flywheel for a lawn mower according to claim 1, wherein: the aluminum flywheel is characterized in that fan blades are arranged on the front end face of the aluminum flywheel, an inward-protruding boss is arranged on the rear end face of the aluminum flywheel, an inner groove is formed in the boss from the outer side face to the inner portion, a threaded hole is formed in the inner groove, the steel gear ring is an annular gear ring, an outer boss matched with the inner groove is arranged on the inner side of the annular gear ring, and a bolt hole is formed in the outer boss.
3. The engine flywheel for a lawn mower according to claim 2, wherein: the outer bosses are at least three and are uniformly distributed on the inner side surface of the annular gear ring.
4. The engine flywheel for a lawn mower according to claim 3, wherein: the outer boss is provided with four.
5. The engine flywheel for a lawn mower according to claim 2, wherein: the rear end face of the aluminum flywheel is provided with a central groove which is inwards concave, and the boss is arranged on the inner wall of the central groove.
6. The engine flywheel for a lawn mower of claim 5, wherein: the center of the central groove is provided with a central boss, the central boss is provided with a central hole, and the central hole is a crank handle passing through a matching hole.
7. The engine flywheel for a lawn mower of claim 6, wherein: reinforcing ribs are arranged between the outer circumference of the central boss and the inner wall of the groove.
8. The engine flywheel for a lawn mower according to claim 2, wherein: an annular braking part is arranged between the fan blades and the steel gear ring, and the braking part is matched with a brake friction block arranged on an engine for braking.
9. A lawn mower, includes engine, its characterized in that: an engine flywheel for a lawn mower as claimed in any one of claims 1 to 8 mounted on said engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921631763.0U CN211398425U (en) | 2019-09-28 | 2019-09-28 | Engine flywheel for lawn mower and lawn mower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921631763.0U CN211398425U (en) | 2019-09-28 | 2019-09-28 | Engine flywheel for lawn mower and lawn mower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211398425U true CN211398425U (en) | 2020-09-01 |
Family
ID=72216883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921631763.0U Expired - Fee Related CN211398425U (en) | 2019-09-28 | 2019-09-28 | Engine flywheel for lawn mower and lawn mower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211398425U (en) |
-
2019
- 2019-09-28 CN CN201921631763.0U patent/CN211398425U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110159731B (en) | Adjustable belt pulley of diameter convenient to dismouting | |
| CN211398425U (en) | Engine flywheel for lawn mower and lawn mower | |
| CN203844524U (en) | Lightweight magnesium aluminium alloy assembly type wheel | |
| CN103950350B (en) | A kind of lightweight assembly type wheel | |
| CN201416612Y (en) | Engine flywheel assembly | |
| CN202520615U (en) | Detachable cutting device for pumps | |
| CN211975769U (en) | Flywheel for medium-speed diesel engine | |
| CN2931878Y (en) | Fan equipped with flexible coupling components | |
| CN212337453U (en) | Additional belt pulley structure integrating turning function | |
| CN201963846U (en) | Spinning tensioning wheel | |
| CN205578227U (en) | High strength supports transmission assembly and air compressor machine | |
| CN211117269U (en) | Noise reduction type automobile brake drum | |
| CN213768139U (en) | Automobile wheel hub convenient to heat dissipation is lubricated | |
| CN107816454B (en) | Impeller of axial flow fan | |
| CN217705357U (en) | Magnetic cylinder ring of iron hub of electric vehicle | |
| CN212245937U (en) | Traction machine structure convenient for replacing traction wheel and bearing | |
| CN217977273U (en) | Sheet metal belt pulley | |
| CN208138034U (en) | A kind of engine high position blower tray assembly | |
| CN207554743U (en) | A kind of belt pulley | |
| CN215334300U (en) | Split type belt pulley capable of compensating abrasion | |
| CN205026010U (en) | Diesel engine flywheel | |
| CN211715568U (en) | Split type elastic pin tooth type coupling | |
| CN213734943U (en) | Wheel with stable braking performance | |
| CN216609177U (en) | Punching tool for rubber tire | |
| CN216923047U (en) | Novel engine flywheel assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200901 |