CN203401874U - Installing structure of front wheel bearing of lawn mower - Google Patents
Installing structure of front wheel bearing of lawn mower Download PDFInfo
- Publication number
- CN203401874U CN203401874U CN201320438034.XU CN201320438034U CN203401874U CN 203401874 U CN203401874 U CN 203401874U CN 201320438034 U CN201320438034 U CN 201320438034U CN 203401874 U CN203401874 U CN 203401874U
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- bearing
- section
- front wheel
- inner ring
- lawn mower
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Abstract
The utility model relates to an installing structure of a front wheel bearing of a lawn mower. The installing structure of the front wheel bearing of the lawn mower comprises a front wheel shaft and hubs, wherein three-level stepped shaft sections are arranged on the front wheel shaft, the small-diameter section of the front wheel shaft serves as a thread section, the middle-diameter section of the front wheel shaft serves as a bearing assembly section, the large-diameter section of the front wheel shaft serves as a limiting section, a first bearing and a second bearing are assembled on the bearing assembly section, the outer ring of the first bearing and the outer ring of the second bearing are used in cooperation with the hubs respectively, the inner ring of the first bearing is located by a shaft shoulder of the limiting section, the portion between the inner ring of the first bearing and the inner ring of the second bearing is located by a locating bushing installed on the bearing assembly section, part of the inner ring of the second bearing extends out of the portion, arranged between the bearing assembly section and the thread section, of the shaft shoulder, and is axially located by a gasket, and the gasket is located by a lock nut installed on the thread section. According to the installing structure of the front wheel bearing of the lawn mower, a gap formed between the front wheel bearing and the gasket is eliminated, the service life of the lawn mower is prolonged, and use safety is improved.
Description
Technical field
The utility model relates to riding type mower front-wheel bearing structure, particularly a kind of mounting structure of lawnmower front-wheel bearing.
Background technology
Riding type mower front-wheel adopts being nested with of partial metallurgy to be socketed on front wheel spindle more at present, utilizes the slip being nested with front wheel spindle to realize front-wheel rotation, and so design makes to be nested with quick abrasion, easily breaks, and has a strong impact on the service life of car load.Minority type adopts flanged outer ring deep groove ball bearing or similar nonstandard bearing, as shown in Figure 2, because the inner ring of bearing 2 is unfixing, make between bearing 2 and packing ring 5 gapped, Ackermann steer angle tire is subject to axial force F, axial force F makes wheel play back and forth between this gap, bearing inner ring back and forth clashes into front wheel spindle 1 and packing ring 5, cause the cracked damage of inner ring of bearing 2, shorten the service life of bearing 2, and the external diameter of packing ring 5 is less than the race diameter of bearing 2, if bearing 2 breaks, may causes front-wheel to deviate from steering swivel and cause serious accident.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and a kind of mounting structure of lawnmower front-wheel bearing is provided, and has eliminated the gap between bearing and packing ring, has extended the service life of lawnmower, has improved safety in utilization.
The technical solution of the utility model is: a kind of mounting structure of lawnmower front-wheel bearing, comprise front wheel spindle, wheel hub, described front wheel spindle is provided with three grades of ladder shaft parts, its path section is thread segment, central diameter section is bearing assemble section, large footpath section is spacing section, in described bearing assemble section, be equipped with clutch shaft bearing and the second bearing, the outer ring of clutch shaft bearing and the second bearing coordinates with wheel hub, the inner ring of described clutch shaft bearing is located by the shaft shoulder of spacing section, between clutch shaft bearing inner ring and the second bearing inner ring, by the positioning adapter being arranged in bearing assemble section, located, a second bearing inner ring part is extended the shaft shoulder between bearing assemble section and thread segment, by packing ring axial location, described packing ring is located by the jam nut being arranged on thread segment.
The diameter of described packing ring is greater than the race diameter of the second bearing.
Adopt technique scheme: the inner ring of clutch shaft bearing is located by the shaft shoulder of spacing section, between clutch shaft bearing inner ring and the second bearing inner ring, by the positioning adapter being arranged in bearing assemble section, located, a second bearing inner ring part is extended the shaft shoulder between bearing assemble section and thread segment, by packing ring axial location, so clutch shaft bearing and the second bearing are positioned in bearing assemble section by packing ring and spacing section, eliminated the gap between bearing and flat gasket, extend the service life of lawnmower, improved safety in utilization.
The diameter of packing ring is greater than the race diameter of the second bearing, if bearing damage also there will not be front-wheel to deviate to cause serious accident.
Below in conjunction with the drawings and specific embodiments, be further described.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is traditional front-wheel bearing mounting structure schematic diagram.
In accompanying drawing, 1 is front wheel spindle, and 1a is spacing section, and 1b is bearing assemble section, and 1c is thread segment, and 2 is bearing, and 2a is clutch shaft bearing, and 2b is the second bearing, and 3 is positioning adapter, and 4 is wheel hub, and 5 is packing ring, and 6 is jam nut.
The specific embodiment
Referring to Fig. 1, a kind of mounting structure of lawnmower front-wheel bearing.This mounting structure comprises front wheel spindle 1, wheel hub 4, and described front wheel spindle 1 is provided with three grades of ladder shaft parts, and its path section is thread segment 1c, and central diameter section is bearing assemble section 1b, and large footpath section is spacing section of 1a, and large footpath section 1a connects the steering swivel of lawnmower.On described bearing assemble section 1b, be equipped with clutch shaft bearing 2a and the second bearing 2b, the inner ring of clutch shaft bearing 2a and the second bearing 2b is all wide than the axial width of outer ring.The outer ring of clutch shaft bearing 2a and the second bearing 2b coordinates with wheel hub 4, the present embodiment, on the outside of clutch shaft bearing 2a and the second bearing 2b outer ring, along outer ring circumference, be provided with locating flange, wheel hub 4 is circumferentially fixed on clutch shaft bearing 2a and the second bearing 2b and is located by locating flange.The inner ring of described clutch shaft bearing 2a is located by the shaft shoulder of spacing section of 1a, between clutch shaft bearing 2a inner ring and the second bearing 2b inner ring, by the positioning adapter 3 being arranged on bearing assemble section 1b, located, a second bearing 2b inner ring part is extended the shaft shoulder between bearing assemble section 1b and thread segment 1c, extended distance is 0.1～0.5mm, the present embodiment, the distance that the second bearing 2b inner ring extends the shaft shoulder is 0.3mm, by packing ring 5 axial location, because the inner ring of clutch shaft bearing 2a and the second bearing 2b is all wide than outer ring, two bearings are located by inner ring, can not hinder the rotation of outer ring.The diameter of described packing ring 5 is greater than the race diameter of the second bearing 2b, if bearing damage, wheel hub 4 can not depart from front wheel spindle yet, effectively guarantees safety.Described packing ring 5 is by being arranged on jam nut on thread segment 1c 6 location, loosening for preventing jam nut 6, and jam nut 6 is circumferentially located with pin space washer 5 is rear.
Adopt technique scheme, by positioning adapter, make the second bearing extend bearing assemble section, eliminated the gap between bearing and packing ring, extended the service life of lawnmower, improved safety in utilization.
Claims (2)
1. the mounting structure of a lawnmower front-wheel bearing, comprise front wheel spindle (1), wheel hub (4), described front wheel spindle (1) is provided with three grades of ladder shaft parts, its path section is thread segment (1c), central diameter section is bearing assemble section (1b), large footpath section is spacing section (1a), in described bearing assemble section (1b), be equipped with clutch shaft bearing (2a) and the second bearing (2b), the outer ring of clutch shaft bearing (2a) and the second bearing (2b) coordinates with wheel hub (4), it is characterized in that: the inner ring of described clutch shaft bearing (2a) is by the shaft shoulder location of spacing section (1a), between clutch shaft bearing (2a) inner ring and the second bearing (2b) inner ring, by the positioning adapter (3) being arranged in bearing assemble section (1b), located, the second bearing (2b) inner ring part is extended the shaft shoulder between bearing assemble section (1b) and thread segment (1c), by packing ring (5) axial location, described packing ring (5) is by jam nut (6) location being arranged on thread segment (1c).
2. the mounting structure of lawnmower front-wheel bearing according to claim 1, is characterized in that: the diameter of described packing ring (5) is greater than the race diameter of the second bearing (2b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320438034.XU CN203401874U (en) | 2013-07-23 | 2013-07-23 | Installing structure of front wheel bearing of lawn mower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320438034.XU CN203401874U (en) | 2013-07-23 | 2013-07-23 | Installing structure of front wheel bearing of lawn mower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203401874U true CN203401874U (en) | 2014-01-22 |
Family
ID=49937815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320438034.XU Expired - Lifetime CN203401874U (en) | 2013-07-23 | 2013-07-23 | Installing structure of front wheel bearing of lawn mower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203401874U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939546A (en) * | 2014-03-20 | 2014-07-23 | 成都丽元电器有限公司 | Supporting device for guiding wheel |
-
2013
- 2013-07-23 CN CN201320438034.XU patent/CN203401874U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939546A (en) * | 2014-03-20 | 2014-07-23 | 成都丽元电器有限公司 | Supporting device for guiding wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151201 Address after: 402247 B District, industrial park, Jiangjin District, Chongqing Patentee after: CHONGQING RATO TECHNOLOGY Co.,Ltd. Address before: 402247 B District, industrial park, Jiangjin District, Chongqing Patentee before: CHONGQING RATO POWER Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140122 |
|
| CX01 | Expiry of patent term |