CN203563341U - Crank handle operated blade driving mechanism - Google Patents
Crank handle operated blade driving mechanism Download PDFInfo
- Publication number
- CN203563341U CN203563341U CN201320802658.5U CN201320802658U CN203563341U CN 203563341 U CN203563341 U CN 203563341U CN 201320802658 U CN201320802658 U CN 201320802658U CN 203563341 U CN203563341 U CN 203563341U
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- arm
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- belt
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- 230000007246 mechanism Effects 0.000 title claims abstract description 39
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 7
- 210000000003 hoof Anatomy 0.000 claims description 7
- 239000004677 Nylon Substances 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a crank handle operated blade driving mechanism. The crank handle operated blade driving mechanism comprises a cutter head (2), left and right cutter shaft belt wheels (27, 3), an engine belt wheel (7), a belt (6), a tension mechanism, left and right brake mechanisms and an operating mechanism, wherein the tension mechanism comprises a tension arm (9), an idle wheel (8) and a tension wheel (5); the left brake mechanism comprises a left brake shoe (26) and a left brake tension spring (12); the left brake shoe (26) is arranged on the tension arm (9); the left brake tension spring (12) is connected between the tension arm (9) and the cutter head (2); the right brake mechanism comprises a right brake arm (16) and a right brake shoe (4); the right brake arm (16) is arranged on a brake shaft (22); the right brake shoe (4) is arranged on the right brake arm (16); a right brake tension spring (21) and a pulling rod (15) are correspondingly connected between the right brake arm (16) and the cutter head (2), and between the right brake arm (16) and the tension arm (9).
Description
Technical field
The utility model relates to a kind of lawn machine, particularly a kind of blade driving mechanism of being handled lawn machine blade rotary work by crank.
Background technology
Along with social development and progress, the lawn area of public greening is more and more, and in order to raise labour efficiency, faster and better that turf-mown is smooth, various lawn machines arise at the historic moment.Blade is the groundwork part of mower, and by engine, by belt drives, in order conveniently to control blade work, driving mechanism structure form mainly contains following two classes at present.
Category-A is on engine shaft, to be provided with clutch, power is delivered on cutter shaft belt pulley by the belt pulley on this clutch and belt, belt is tensioning all the time, transmits the power that comes from engine when blade work, transmits the braking moment that comes from clutch brake sheet when stopping cutter.
Category-B is that belt pulley is directly housed on engine shaft, with the tensioning of belt, unclamp combination, the separation function of realizing power between engine and cutter shaft, stops the another set of arrestment mechanism that cutter braking moment comes from interlock.
Category-A mechanism structure is simple, operates briskly during with electromagnetic clutch, and shortcoming is in conjunction with smooth-going not, and cost is higher; Category-B mechanism is in conjunction with smooth-going, but complex structure, to manufacturing and designing, when the having relatively high expectations of installation and debugging, particularly double-pole or three cuttves, is not easy to realize.For this reason, many manufacturers and knowledgeable people are studied and develop for the problems referred to above, but not yet have so far more rational product to emerge.
Summary of the invention
The problems referred to above that exist for overcoming existing blade driving mechanism, the purpose of this utility model is to provide a kind of reasonable in design, simple and compact for structure, easy to install, blade driving mechanism that the reliable crank of working stability is handled.
The utility model solves the technical scheme that its technical problem adopts, left and right tool rest, the correspondence that it comprises cutterhead, be arranged on cutterhead both sides is arranged on left and right cutter shaft belt wheel on the tool rest of left and right, is fixed on engine belt wheel, belt, strainer, left and right arrestment mechanism and operating mechanism on engine output shaft, described strainer comprises tensioner arm, Duo wheel, regulating wheel, tensioner arm and Duo wheel are coaxially arranged on cutterhead, regulating wheel is arranged on tensioner arm rotationally, and regulating wheel is pressed on belt from outside to inside; Described left arrestment mechanism comprises left brake-shoe, left brake retracting spring, and left brake-shoe is arranged on the tensioner arm matching with left cutter shaft belt wheel, and left brake retracting spring is connected between tensioner arm and cutterhead; Described right arrestment mechanism comprises the brake axle being arranged on cutterhead, right brake arm and right braking hoof, right brake arm is arranged on brake axle rotationally, right braking hoof is arranged on the right brake arm matching with right cutter shaft belt wheel, between right brake arm and cutterhead, be connected with right brake retracting spring, between tensioner arm and right brake arm, be connected with pull bar.
Described operating mechanism comprises extension spring, drag-line, crank, linkage board, crank is arranged on the frame plate of left and right rotationally, linkage board is fixedly connected on the crank throw portion of crank, and one end of drag-line is connected on linkage board, and the other end is connected on tensioner arm by extension spring.
Between described crank and left and right frame plate, be respectively equipped with nylon bush.
Described right frame plate is provided with front retaining screw and the rear retaining screw matching with linkage board, during tensioning work, drag-line pulls linkage board to lean against front and nails under extension spring effect, and when unclamping belt and braking, linkage board leans against backstop and nails under deadweight and spring-force driven dual.
Adopt after said structure, have compared with the prior art following advantage and effect: the one, because left and right cutter shaft belt wheel is connected with engine-driven engine belt wheel by belt, and driven with separated by regulating wheel tightening belt, simple in structure, clutch is reliable; The 2nd, owing to connecting respectively left and right arrestment mechanism and operating mechanism on tensioner arm, during tension crank, drag-line and extension spring drive regulating wheel tightening belt to drive blade work by tensioner arm, while unclamping crank under the brake retracting spring effect of left and right, regulating wheel unclamps belt, the tellurium of left and right braking is simultaneously braked left and right cutter shaft belt wheel, and blade rotates and braking conversion operations is simple, speed is fast, handling good; The 3rd, front retaining screw and rear retaining screw can play position-limiting action.
Accompanying drawing explanation
Fig. 1 is plan structure schematic diagram of the present utility model.
Fig. 2 is that A of the present utility model is to structural representation.
Fig. 3 is the B-B cross-sectional view of the utility model Fig. 1.
Fig. 4 is the C-C cross-sectional view of the utility model Fig. 1.
1 right tool rest wherein, 2 cutterheads, 3 right cutter shaft belt wheels, 4 right braking hoofs, 5 regulating wheels, 6 belts, 7 engine belt wheels, 8 Duo wheels, 9 tensioner arms, 10 nylon bush, 11 left frame wallboards, 12 left brake retracting springs, 13 extension springs, 14 drag-lines, 15 pull bars, 16 right brake arms, 17 front retaining screws, 18 left and right frame plates, 19 cranks, 20 linkage boards, 21 right brake retracting springs, 22 brake axles, 23 blades, 24 Duo wheel shafts, 25 rear retaining screws, 26 left brake-shoes, 27 left cutter shaft belt wheels, 28 left tool rests.
Embodiment
Shown in Fig. 1 to Fig. 4, the specific embodiments of the blade driving mechanism of handling for the utility model crank, it comprises cutterhead 2, be arranged on the left and right tool rest 28 of cutterhead 2 both sides, 1, by cutter shaft 23 correspondences, be arranged on left and right tool rest 28, left and right cutter shaft belt wheel 27 on 1, 3, be fixed on the engine belt wheel 7 on engine output shaft, belt 6, strainer, left and right arrestment mechanism and operating mechanism, described strainer comprises tensioner arm 9, Duo wheel 8, regulating wheel 5, tensioner arm 9 is coaxially arranged on cutterhead 2 by Duo wheel shaft 24 with Duo wheel 8, belt 6 is looped around engine belt wheel 7, left and right cutter shaft belt wheel 27, 3 and Duo wheel 8 on, regulating wheel 5 is arranged on tensioner arm 9 rotationally, regulating wheel 5 is pressed on belt 6 from outside to inside, described left arrestment mechanism comprises left brake-shoe 26, left brake retracting spring 12, and left brake-shoe 26 is arranged on the tensioner arm 9 matching with left cutter shaft belt wheel 27, and left brake retracting spring 12 is connected between tensioner arm 9 and cutterhead 2, described right arrestment mechanism comprises brake axle 22, right brake arm 16 and the right braking hoof 4 being arranged on cutterhead 2, right brake arm 16 is arranged on brake axle 22 rotationally, right braking hoof 4 is arranged on the right brake arm 16 matching with right cutter shaft belt wheel 3, between right brake arm 16 and cutterhead 2, be connected with right brake retracting spring 21, between tensioner arm 9 and right brake arm 16, be connected with pull bar 15.Described operating mechanism comprises extension spring 13, drag-line 14, crank 19, linkage board 20, crank 19 is arranged on left and right frame plate 11,18 rotationally, linkage board 20 is fixedly connected on the crank throw portion of crank 19, one end of drag-line 14 is connected on linkage board 20, and the other end is connected on tensioner arm 9 by extension spring 13.
Light flexibly in order to ensure crank 19 rotations, between described crank 19 and left and right frame plate 11,18, be respectively equipped with nylon bush 10.In order effectively to control crank 19, described right frame plate 18 is provided with front retaining screw 17 and the rear retaining screw 25 matching with linkage board 20, during tensioning work, before drag-line 14 pulls linkage board 20 to lean against under extension spring 13 effect in retaining screw 17, when unclamping belt 6 and braking, after linkage board 20 leans against under deadweight and spring-force driven dual in retaining screw 25.
The utility model course of work is as follows, when operating crank 19 tensioning work, as shown in Figure 1 and Figure 4, the linkage board 20 of crank 19 contacts with front retaining screw 17, before drag-line 14 pulls linkage board 20 to lean against under extension spring 13 effect in retaining screw 17, regulating wheel 5 is tightening belt 6 from outside to inside, left and right brake-shoe 26,4 is separated with corresponding left and right cutter shaft belt wheel 27,3, by engine-driven engine belt wheel 7, by belt 6, drive 27,3 rotations of left and right cutter shaft belt wheel, left and right cutter shaft belt wheel 27,3 is by cutter shaft 23 band knife section rotary works separately.When operating crank 19 unclamps, be after the linkage board 20 of crank 19 leans against under deadweight and spring-force driven dual in retaining screw 25, tensioner arm 9 rotates under left brake retracting spring 12 and right brake retracting spring 21, right brake arm 16, pull bar 15 effects, regulating wheel 5 unclamps belt 6, left and right brake-shoe 26,4 is braked left and right cutter shaft belt wheel 27,3 respectively, relative belt 6 idle running of engine belt wheel 7, left and right cutter shaft belt wheel 27,3 stops operating, and blade quits work.
The above; be an embodiment of the present utility model, not the utility model made to any pro forma restriction, do not departing from the technical solution of the utility model basis; the simple modification of having done, equivalent variations or modification, all fall into protection domain of the present utility model.
Claims (4)
1. the blade driving mechanism that a crank is handled, comprise cutterhead (2), be arranged on the left and right tool rest (28 of cutterhead (2) both sides, 1), correspondence is arranged on left and right tool rest (28, 1) the left and right cutter shaft belt wheel (27 on, 3), be fixed on the engine belt wheel (7) on engine output shaft, belt (6), strainer, left and right arrestment mechanism and operating mechanism, it is characterized in that: described strainer comprises tensioner arm (9), Duo takes turns (8), regulating wheel (5), tensioner arm (9) is coaxially arranged on cutterhead (2) with Duo wheel (8), regulating wheel (5) is arranged on tensioner arm (9) rotationally, regulating wheel (5) is pressed on belt (6) from outside to inside, described left arrestment mechanism comprises left brake-shoe (26), left brake retracting spring (12), it is upper that left brake-shoe (26) is arranged on the tensioner arm (9) matching with left cutter shaft belt wheel (27), and left brake retracting spring (12) is connected between tensioner arm (9) and cutterhead (2), described right arrestment mechanism comprises the brake axle (22) being arranged on cutterhead (2), right brake arm (16) and right braking hoof (4), right brake arm (16) is arranged on brake axle (22) rotationally, right braking hoof (4) is arranged on the right brake arm (16) matching with right cutter shaft belt wheel (3), between right brake arm (16) and cutterhead (2), be connected with right brake retracting spring (21), between tensioner arm (9) and right brake arm (16), be connected with pull bar (15).
2. the blade driving mechanism that crank according to claim 1 is handled, it is characterized in that: described operating mechanism comprises extension spring (13), drag-line (14), crank (19), linkage board (20), crank (19) is arranged on left and right frame plate (11,18) rotationally, linkage board (20) is fixedly connected on the crank throw portion of crank (19), it is upper that one end of drag-line (14) is connected to linkage board (20), and the other end is connected on tensioner arm (9) by extension spring (13).
3. the blade driving mechanism that crank according to claim 2 is handled, is characterized in that: described crank (19) and left and right frame plate are respectively equipped with nylon bush (10) between (11,18).
4. the blade driving mechanism that crank according to claim 2 is handled, it is characterized in that: described right frame plate (18) is provided with front retaining screw (17) and the rear retaining screw (25) matching with linkage board (20), during tensioning work, drag-line (14) pulls linkage board (20) to lean against in front retaining screw (17) under extension spring (13) effect, when unclamping belt (6) and braking, after linkage board (20) leans against under deadweight and spring-force driven dual in retaining screw (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320802658.5U CN203563341U (en) | 2013-12-10 | 2013-12-10 | Crank handle operated blade driving mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320802658.5U CN203563341U (en) | 2013-12-10 | 2013-12-10 | Crank handle operated blade driving mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203563341U true CN203563341U (en) | 2014-04-30 |
Family
ID=50531114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320802658.5U Expired - Lifetime CN203563341U (en) | 2013-12-10 | 2013-12-10 | Crank handle operated blade driving mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203563341U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111010981A (en) * | 2019-12-31 | 2020-04-17 | 浙江大邦电动工具有限公司 | Synchronous belt driving mower |
-
2013
- 2013-12-10 CN CN201320802658.5U patent/CN203563341U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111010981A (en) * | 2019-12-31 | 2020-04-17 | 浙江大邦电动工具有限公司 | Synchronous belt driving mower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |
|
| CX01 | Expiry of patent term |