CN202276655U - Brake structure for lawn mower - Google Patents
Brake structure for lawn mower Download PDFInfo
- Publication number
- CN202276655U CN202276655U CN2011203221277U CN201120322127U CN202276655U CN 202276655 U CN202276655 U CN 202276655U CN 2011203221277 U CN2011203221277 U CN 2011203221277U CN 201120322127 U CN201120322127 U CN 201120322127U CN 202276655 U CN202276655 U CN 202276655U
- Authority
- CN
- China
- Prior art keywords
- belt pulley
- belt wheel
- belt
- pulley
- wheel liner
- 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.)
- Withdrawn - After Issue
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- Braking Arrangements (AREA)
Abstract
The utility model discloses a brake structure for a lawn mower. The brake structure comprises a base, wherein a motor is fixed on the base; an output shaft is rotatably connected with the base; a belt pulley is arranged on the output shaft; the belt pulley and the motor are driven by a belt; a pulley liner is arranged between the belt pulley and the output shaft; the pulley liner is fixed with the output shaft; a locking structure is arranged between the belt pulley and the pulley liner; under the action of the locking structure, the pulley liner is driven to rotate when the belt pulley is rotated; a spring is arranged between the belt pulley and the pulley liner; a friction structure is also arranged between the belt pulley and the pulley liner; and after the power of the belt pulley is lost, the spring releases an elastic force so as to cause the pulley liner to reversely rotate relatively to the belt pulley and cause the friction structure to act. The relative rotation for a certain displacement is realized by the belt pulley and the pulley liner of the brake structure for the lawn mower; during the rotating process, a protruded part inside the belt pulley is used for applying or releasing pressure for a moveable friction block assembled on the pulley liner, so as to efficiently ensure the reliable running of the brake structure; and the structure is compact, the operation is convenient and the system is stable and reliable.
Description
Technical field
The utility model relates to mower brake.
Background technology
Mower is a kind of garden instrument that generally uses, and is applicable to grass is pruned.But because reasons in structure, the mechanical brake structure of existing mower exists instability, the big drawback of brake time fluctuation.
The utility model content
The utility model technical problem to be solved just provides a kind of simple in structure, with low cost, the mower brake structure of brake reliable and stable.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: the mower brake structure comprises pedestal; A fixing motor and the output shaft that is rotationally connected on the pedestal, output shaft are provided with and pass through belt transmission between a belt pulley and the motor, it is characterized in that: be provided with a belt wheel liner between said belt pulley and the output shaft; Wherein belt wheel liner and output shaft are fixed, and are provided with latch-up structure between belt pulley and belt wheel liner, and this latch-up structure can drive the belt wheel liner when belt pulley is rotated and rotate; And also be provided with spring between belt pulley and belt wheel liner; Latch-up structure is provided with and makes belt pulley rotate surplus relative to what the belt wheel liner rotated, and before this rotation surplus made latch-up structure act on belt pulley and belt wheel liner, spring was compressed; Also be provided with friction structure between belt pulley and belt wheel liner; After belt pulley ran out of steam, spring discharges elastic force made the relative belt pulley counter-rotating of belt wheel liner, thereby the friction structure effect stops operating the belt wheel liner.
As preferably, said latch-up structure comprises at least one the protruding tapered end that evenly is provided with on the belt pulley inner peripheral surface, and corresponding said tapered end is provided with locked groove on the belt wheel liner outer circumference surface.
As preferably, said tapered end is the triangular hill shape in obtuse angle, and said locked groove is the obtuse triangle groove of corresponding said tapered end.
As preferably, said friction structure comprises at least one brake pad that is rotatably connected on the belt wheel liner, and said pedestal is provided with the cylindrical portion of stretching to belt pulley; Be fixed with friction sleeve on the cylindrical portion excircle; The corresponding brake pad of belt pulley inner periphery is provided with convexity, and after belt wheel ran out of steam, spring discharged elastic force; The belt wheel liner drives brake pad and rotates, and convexity is exerted pressure and made brake pad press to friction sleeve.
As preferably; Said brake pad is an arc-shaped structure; Brake pad one end is rotatably connected on the belt wheel liner through a bearing pin; The brake pad intrados is provided with an arc groove, and the friction plate of a circular arc is installed in the said groove, the friction plate intrados protrude in said groove and with the friction sleeve frictional fit.
As preferably, said brake pad extrados is provided with scarf, and said convexity is a wedge structure, and the wedge inclined-plane cooperates with said scarf.
The utility model belt pulley and belt wheel liner are equipped with stage clip, and belt pulley and belt wheel liner can be realized relatively rotating of certain displacement, in rotating process; Bulge provides pressure or release pressure to the movable brake pad that is assemblied on the belt wheel liner in the belt pulley; Thereby guarantee that effectively brake structure moves reliably, thereby compact conformation, easy to operate; System stability is reliable, has realized relevant function effectively.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Fig. 1 is the structural representation (braking state) of the utility model;
Fig. 2 is the utility model friction structure sketch map (braking state);
Fig. 3 is the contact sketch map (braking state) of belt pulley, belt wheel liner, spring;
Fig. 4 is the utility model friction structure sketch map (duty);
Fig. 5 is the contact sketch map (duty) of belt pulley, belt wheel liner, spring.
Embodiment
Specify the embodiment of the utility model mower brake structure below in conjunction with Fig. 1 to Fig. 5, comprise pedestal 1, a fixing motor 7 and the output shaft 41 that is rotationally connected on the pedestal; Output shaft is provided with and passes through belt transmission between a belt pulley 2 and the motor, is provided with a belt wheel liner 4 between said belt pulley and the output shaft, and wherein belt wheel liner and output shaft are fixed; Be provided with latch-up structure between belt pulley and belt wheel liner; This latch-up structure can drive the belt wheel liner and rotate when belt pulley is rotated, and also is provided with spring 5 between belt pulley and belt wheel liner, and latch-up structure is provided with and makes belt pulley rotate surplus relative to what the belt wheel liner rotated; Before this rotation surplus makes latch-up structure act on belt pulley and belt wheel liner; Spring is compressed, and also is provided with friction structure between belt pulley and belt wheel liner, after belt pulley runs out of steam; Spring discharges elastic force makes the relative belt pulley counter-rotating of belt wheel liner, thereby the friction structure effect stops operating the belt wheel liner.Said latch-up structure comprises at least one the protruding tapered end 21 that evenly is provided with on the belt pulley inner peripheral surface, and corresponding said tapered end is provided with locked groove 43 on the belt wheel liner outer circumference surface.Said tapered end is the triangular hill shape in obtuse angle, and said locked groove is the obtuse triangle groove of corresponding said tapered end.Said friction structure comprises at least one brake pad 3 that is rotatably connected on the belt wheel liner; Said pedestal is provided with the cylindrical portion of stretching to belt pulley, is fixed with friction sleeve 11 on the cylindrical portion excircle, and the corresponding brake pad of belt pulley inner periphery is provided with protruding 22; After belt wheel runs out of steam; Spring discharges elastic force, and the belt wheel liner drives brake pad and rotates, and convexity is exerted pressure and made brake pad press to friction sleeve.Said brake pad is an arc-shaped structure; Brake pad one end is rotatably connected on the belt wheel liner through a bearing pin 42; The friction plate 31 that the brake pad intrados is provided with an arc groove 32, one circular arcs is installed in the said groove, the friction plate intrados protrude in said groove and with the friction sleeve frictional fit.Said brake pad extrados is provided with scarf 33, and said protruding 22 is a wedge structure, and the wedge inclined-plane cooperates with said scarf.
After the mower energising started, pulley movements was when moving to the locked groove edge of belt wheel liner; The tapered end effect drives the belt wheel liner and moves together; This moment, belt pulley was no longer pushed down movable brake pad, and movable brake pad is thrown off the blade setting in motion on the belt wheel liner with friction sleeve under action of centrifugal force; In this process, the spring between belt pulley and belt wheel liner is compressed; Behind the power cutoff; Belt pulley runs out of steam; Belt pulley and belt wheel liner produce relative motion (producing speed difference between belt pulley and belt wheel liner) under the elastic force effect that compressed spring discharges, belt pulley promotion activity brake pad friction friction sleeve impels the stop motion of belt wheel liner; Thereby realize the blade stop motion, mower is in braking state.
Except that above-mentioned preferred embodiment; The utility model also has other embodiment; Those skilled in the art can make various changes and distortion according to the utility model, only otherwise break away from the spirit of the utility model, all should belong to the defined scope of the utility model accompanying claims.
Claims (6)
1. the mower brake structure comprises pedestal (1), a fixing motor (7) and the output shaft (41) that is rotationally connected on the pedestal; Through belt pulley (2) belt transmission, it is characterized in that: be provided with a belt wheel liner (4) between said belt pulley and the output shaft, wherein belt wheel liner and output shaft are fixed between output shaft and the motor; Be provided with latch-up structure between belt pulley and belt wheel liner; This latch-up structure can drive the belt wheel liner and rotate when belt pulley is rotated, and also is provided with spring (5) between belt pulley and belt wheel liner, and latch-up structure is provided with and makes belt pulley rotate surplus relative to what the belt wheel liner rotated; Before this rotation surplus makes latch-up structure act on belt pulley and belt wheel liner; Spring is compressed, and also is provided with friction structure between belt pulley and belt wheel liner, after belt pulley runs out of steam; Spring discharges elastic force makes the relative belt pulley counter-rotating of belt wheel liner, thereby the friction structure effect stops operating the belt wheel liner.
2. mower brake structure according to claim 1 is characterized in that: said latch-up structure comprises at least one the protruding tapered end (21) that evenly is provided with on the belt pulley inner peripheral surface, and corresponding said tapered end is provided with locked groove (43) on the belt wheel liner outer circumference surface.
3. mower brake structure according to claim 2 is characterized in that: said tapered end (21) is the triangular hill shape in obtuse angle, and said locked groove (43) is the obtuse triangle groove of corresponding said tapered end.
4. according to each described mower brake structure of claim 1 to 3, it is characterized in that: said friction structure comprises at least one brake pad (3) that is rotatably connected on the belt wheel liner, and said pedestal is provided with the cylindrical portion of stretching to belt pulley; Be fixed with friction sleeve (11) on the cylindrical portion excircle; The corresponding brake pad of belt pulley inner periphery is provided with convexity (22), and after belt wheel ran out of steam, spring discharged elastic force; The belt wheel liner drives brake pad and rotates, and convexity is exerted pressure and made brake pad press to friction sleeve.
5. mower brake structure according to claim 4; It is characterized in that: said brake pad (3) is an arc-shaped structure; Brake pad one end is rotatably connected on the belt wheel liner through a bearing pin (42); The brake pad intrados is provided with an arc groove (32), and the friction plate of a circular arc (31) is installed in the said groove, the friction plate intrados protrude in said groove and with the friction sleeve frictional fit.
6. mower brake structure according to claim 5 is characterized in that: said brake pad (3) extrados is provided with scarf (33), and said convexity (22) is a wedge structure, and the wedge inclined-plane cooperates with said scarf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203221277U CN202276655U (en) | 2011-08-30 | 2011-08-30 | Brake structure for lawn mower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203221277U CN202276655U (en) | 2011-08-30 | 2011-08-30 | Brake structure for lawn mower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202276655U true CN202276655U (en) | 2012-06-20 |
Family
ID=46222844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203221277U Withdrawn - After Issue CN202276655U (en) | 2011-08-30 | 2011-08-30 | Brake structure for lawn mower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202276655U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102388724A (en) * | 2011-08-30 | 2012-03-28 | 浙江亚特电器有限公司 | Mower braking structure |
| CN106416628A (en) * | 2016-03-04 | 2017-02-22 | 浙江亚特电器有限公司 | Mowing machine |
-
2011
- 2011-08-30 CN CN2011203221277U patent/CN202276655U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102388724A (en) * | 2011-08-30 | 2012-03-28 | 浙江亚特电器有限公司 | Mower braking structure |
| CN102388724B (en) * | 2011-08-30 | 2013-07-10 | 浙江亚特电器有限公司 | Mower braking structure |
| CN106416628A (en) * | 2016-03-04 | 2017-02-22 | 浙江亚特电器有限公司 | Mowing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120620 Effective date of abandoning: 20130710 |
|
| RGAV | Abandon patent right to avoid regrant |