CN201667841U - Belt tensioning device of lawn mower - Google Patents
Belt tensioning device of lawn mower Download PDFInfo
- Publication number
- CN201667841U CN201667841U CN2010202131993U CN201020213199U CN201667841U CN 201667841 U CN201667841 U CN 201667841U CN 2010202131993 U CN2010202131993 U CN 2010202131993U CN 201020213199 U CN201020213199 U CN 201020213199U CN 201667841 U CN201667841 U CN 201667841U
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- CN
- China
- Prior art keywords
- swing arm
- mandrel
- axle sleeve
- tensioning wheel
- regulating wheel
- 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 belt tensioning device of a lawn mower. The device comprises a movable tensioning wheel, a fixed tensioning wheel, a swinging arm and a transmission belt, wherein the movable tensioning wheel and the fixed tensioning wheel are respectively arranged at two sides of the transmission belt and respectively supported at two ends of the swinging arm through a bearing, a first central spindle and a second central spindle, and the middle of the swinging arm is connected with a rack through a tension spring elastically; the center of the second central spindle is the swinging center of the movable tensioning wheel; the movable tensioning wheel can rotate around the center of a self first central spindle; the fixed tensioning wheel can rotate around the center of a self second central spindle; and the swinging arm and a movable tensioning wheel body can rotate around the center of the second central spindle. The belt tensioning device is compact in structure and convenient for installation. By the combination of the rotation center of the swinging arm with the center of the fixed tensioning wheel into one, a transmission mechanism is simplified, the occupied space of a belt transmission mechanism is reduced and the manufacturing cost is brought down.
Description
Technical field
The utility model relates to a kind of belt drive unit of hay mower, and especially a kind of belt stretcher belongs to the graden machine technical field.
Background technology
Belt transmission is to be used for the machine driving that the transmission center has certain distance, generally form by driving wheel, driven pulley and driving belt, the driving belt tensioning is wrapped on driving wheel and the driven pulley, normal pressure to contact-making surface generation between driving wheel, the driven pulley, during the driving wheel rotation, the frictional force drives driving belt revolution that produces between the contact-making surface of driving wheel and driving belt is transmitted motion and moment of torsion thereby drive the driven pulley rotation.In order to make driving belt keep certain tensile force, the driving belt arranged outside of being everlasting regulating wheel by increasing belt contact, thereby increases the frictional force between driving belt and driving wheel and the driven pulley, makes belt transmission normally to carry out.Comparatively have a plurality of regulating wheels in the Fu Za belt gear, belt gear as existing hay mower rear driving axle comprises moving regulating wheel and decides regulating wheel, moving regulating wheel operated by rotary motion is in swing arm independently, the swing arm centre of gyration around swing arm one end rotates tightening belt, this transmission mechanism takes up room bigger, is difficult to be applied on the less hay mower in space.
The utility model content
The purpose of this utility model provides a kind of compact conformation, hay mower belt stretcher easy for installation, this device with the swing arm centre of gyration with decide the regulating wheel center and unite two into one, reduced taking up room of belt gear.
The utility model is achieved by the following technical programs:
A kind of hay mower belt stretcher, comprise moving regulating wheel, decide regulating wheel, swing arm, driving belt, described moving regulating wheel with decide regulating wheel and be separately positioned on the driving belt both sides, described moving regulating wheel with decide regulating wheel and be bearing on the swing arm two ends by bearing, first mandrel, second mandrel respectively, described swing arm middle part is connected with frame elasticity by extension spring, and the described second mandrel center is the oscillation center of moving regulating wheel.
The purpose of this utility model can also further realize by following technical measures.
Aforesaid hay mower belt stretcher, wherein said moving regulating wheel comprises moving tensioning wheel body, clutch shaft bearing, first mandrel, first axle sleeve, described clutch shaft bearing is arranged between moving tensioning wheel body endoporus and described first sleeve outer circle, described first axle sleeve is fixed on swing arm one end upside, the first axle sleeve top is resisted against the clutch shaft bearing downside, first mandrel passes the first axle sleeve endoporus, is fixed on the swing arm upside by securing member, and moving tensioning wheel body can be around the first mandrel center rotation of self.
Aforesaid hay mower belt stretcher, wherein saidly decide regulating wheel and comprise and decide tensioning wheel body, second bearing, second mandrel, outer shaft, internal axle sleeve, a pair of sliding bearing, described second bearing is arranged on to be decided between tensioning wheel body endoporus and the described internal axle sleeve cylindrical, described outer shaft is fixed on the swing arm other end, internal axle sleeve is sleeved in the outer shaft endoporus, described a pair of sliding bearing is arranged above and below and is arranged between outer shaft endoporus and the internal axle sleeve cylindrical, second mandrel passes internal axle sleeve endoporus and frame outer wall, is fixed on the swing arm upside by securing member; Deciding the tensioning wheel body can be around the second mandrel center rotation of self, and swing arm and moving tensioning wheel body can rotate around the second mandrel center.
Aforesaid hay mower belt stretcher, an end hook of wherein said extension spring hang on the hook of swing arm middle part downside, and the other end of extension spring is hooked on the frame.
The utility model compact conformation, easy for installation.The utility model with the swing arm centre of gyration with decide the regulating wheel center and unite two into one, simplified transmission mechanism, reduced taking up room of belt gear, reduced manufacturing cost.
Advantage of the present utility model and characteristics will illustrate by the non-limitative illustration of following preferred embodiment and explain that these embodiment only provide as an example with reference to accompanying drawing.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A amplification view of Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, the utility model comprises moving regulating wheel 1, decides regulating wheel 2, swing arm 3, driving belt 4, move regulating wheel 1 and decide regulating wheel 2 and be separately positioned on driving belt 4 both sides, move regulating wheel 1 and decide regulating wheel 2 and be bearing in respectively on swing arm 3 two ends, one end hook of extension spring 8 hangs on the hook 31 of swing arm 3 middle part downsides, the other end is hooked on the frame 9, and under the resilient force of extension spring 8, moving regulating wheel 1 and swing arm 3 can clockwise rotate tensioning driving belt 4 around the second mandrel center.Driving belt 4 is on driving wheel 5, first follower 6, second follower 7, by moving regulating wheel 1 of the present utility model, decide regulating wheel 2 tensionings and become hollow T font, driving wheel 5 is fixedlyed connected with engine output shaft, and first follower 6, second follower 7 are fixedlyed connected with two power shafts of rear driving axle respectively.The utility model is that a driving wheel drives two follower rotations, in order to increase the belt contact of drive, moving regulating wheel 1, decide regulating wheel 2 and inwardly push tensioning driving belt 4, make driving belt 4 coileds hollow T font as shown in Figure 1 from driving belt 4 both sides.
As shown in Figure 2, moving regulating wheel 1 comprises moving tensioning wheel body 11, clutch shaft bearing 12, first mandrel 13, first axle sleeve 14, clutch shaft bearing 12 is arranged between moving tensioning wheel body 11 endoporus and described first axle sleeve, 14 cylindricals, first axle sleeve, 14 tops are resisted against clutch shaft bearing 12 downsides, first axle sleeve 14 is fixed on swing arm 3 one end upsides, first mandrel 13 passes packing ring 15, first axle sleeve, 14 endoporus, be fixed on swing arm 3 upsides by clamp nut 16, moving regulating wheel 1 can be around first mandrel, the 13 centers rotation of self.Deciding regulating wheel 2 comprises and decides tensioning wheel body 21, second bearing 22, second mandrel 23, outer shaft 24, internal axle sleeve 25, a pair of sliding bearing 26, second bearing 22 is arranged on to be decided between tensioning wheel body 21 endoporus and internal axle sleeve 25 cylindricals, outer shaft 24 passes swing arm 3 downsides, is fixed on swing arm 3 other ends.Internal axle sleeve 25 is sleeved in outer shaft 24 endoporus, and a pair of sliding bearing 26 is arranged above and below and is arranged between outer shaft 24 endoporus and internal axle sleeve 25 cylindricals, and is positioned at second bearing, 22 downsides.Second mandrel 23 passes internal axle sleeve 25 endoporus, thick washer 27 and frame 9 outer walls, is fixed on swing arm 3 upsides by clamp nut 28.Deciding regulating wheel 2 can be around second mandrel, the 23 centers rotation of self, and swing arm 3 and moving tensioning wheel body 1 can rotate around second mandrel, 23 centers.First mandrel 13 of present embodiment, the hexagon-headed bolt of second mandrel, 23 equal selection standards can reduce manufacturing cost of the present utility model.
In addition to the implementation, the utility model can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
Claims (4)
1. hay mower belt stretcher, comprise moving regulating wheel, decide regulating wheel, swing arm, driving belt, described moving regulating wheel with decide regulating wheel and be separately positioned on the driving belt both sides, it is characterized in that: described moving regulating wheel with decide regulating wheel and be bearing on the swing arm two ends by bearing, first mandrel, second mandrel respectively, described swing arm middle part is connected with frame elasticity by extension spring, and the described second mandrel center is the oscillation center of moving regulating wheel.
2. hay mower belt stretcher as claimed in claim 1, it is characterized in that: described moving regulating wheel comprises moving tensioning wheel body, clutch shaft bearing, first mandrel, first axle sleeve, described clutch shaft bearing is arranged between moving tensioning wheel body endoporus and described first sleeve outer circle, described first axle sleeve is fixed on swing arm one end upside, the first axle sleeve top is resisted against the clutch shaft bearing downside, first mandrel passes the first axle sleeve endoporus, be fixed on the swing arm upside by securing member, moving tensioning wheel body can be around the first mandrel center rotation of self.
3. hay mower belt stretcher as claimed in claim 1, it is characterized in that: describedly decide regulating wheel and comprise and decide the tensioning wheel body, second bearing, second mandrel, outer shaft, internal axle sleeve, a pair of sliding bearing, described second bearing is arranged on to be decided between tensioning wheel body endoporus and the described internal axle sleeve cylindrical, described outer shaft is fixed on the swing arm other end, internal axle sleeve is sleeved in the outer shaft endoporus, described a pair of sliding bearing is arranged above and below and is arranged between outer shaft endoporus and the internal axle sleeve cylindrical, second mandrel passes internal axle sleeve endoporus frame outer wall, is fixed on the swing arm upside by securing member; Deciding the tensioning wheel body can be around the second mandrel center rotation of self, and swing arm and moving tensioning wheel body can rotate around the second mandrel center.
4. hay mower belt stretcher as claimed in claim 1 is characterized in that: an end hook of described extension spring hangs on the hook of swing arm middle part downside, and the other end of extension spring is hooked on the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202131993U CN201667841U (en) | 2010-06-02 | 2010-06-02 | Belt tensioning device of lawn mower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202131993U CN201667841U (en) | 2010-06-02 | 2010-06-02 | Belt tensioning device of lawn mower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201667841U true CN201667841U (en) | 2010-12-15 |
Family
ID=43325257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202131993U Expired - Fee Related CN201667841U (en) | 2010-06-02 | 2010-06-02 | Belt tensioning device of lawn mower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201667841U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105191579A (en) * | 2015-09-28 | 2015-12-30 | 镇江华立煤质制样设备有限公司 | Tensioning device for self-walking machine of grass trimming vehicle |
| CN107299488A (en) * | 2017-06-28 | 2017-10-27 | 青岛海尔洗衣机有限公司 | A kind of washing machine of decelerator and the application decelerator |
| CN108223727A (en) * | 2018-03-01 | 2018-06-29 | 东莞市全风环保设备有限公司 | Air blower and its strainer |
| CN111828570A (en) * | 2020-06-26 | 2020-10-27 | 华友天宇科技（武汉)股份有限公司 | Clutch device and boat tractor |
-
2010
- 2010-06-02 CN CN2010202131993U patent/CN201667841U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105191579A (en) * | 2015-09-28 | 2015-12-30 | 镇江华立煤质制样设备有限公司 | Tensioning device for self-walking machine of grass trimming vehicle |
| CN107299488A (en) * | 2017-06-28 | 2017-10-27 | 青岛海尔洗衣机有限公司 | A kind of washing machine of decelerator and the application decelerator |
| CN108223727A (en) * | 2018-03-01 | 2018-06-29 | 东莞市全风环保设备有限公司 | Air blower and its strainer |
| CN111828570A (en) * | 2020-06-26 | 2020-10-27 | 华友天宇科技（武汉)股份有限公司 | Clutch device and boat tractor |
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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 |
Granted publication date: 20101215 Termination date: 20150602 |
|
| EXPY | Termination of patent right or utility model |