CN202310616U

CN202310616U - Belt transmission clutch device of lawn mower

Info

Publication number: CN202310616U
Application number: CN2011204604159U
Authority: CN
Inventors: 张朝杰; 王挺; 王胜利; 韦群力; 朱雅娴
Original assignee: Jiangsu World Plant Protecting Machinery Co Ltd
Current assignee: Jiangsu World Plant Protecting Machinery Co Ltd
Priority date: 2011-11-18
Filing date: 2011-11-18
Publication date: 2012-07-11
Anticipated expiration: 2021-11-18

Abstract

The utility model discloses a belt transmission clutch device of a lawn mower. The belt transmission clutch device comprises a power output wheel, a mowing cutter transmission wheel, a tension wheel, a swing arm, a brake block, a tension spring, a pull rod and a transmission belt, wherein the swing arm is reversely L-shaped and comprises a vertical arm and a transverse arm; the lower part of the transverse arm is articulated with the middle part of a mowing table machine frame through an articulated shaft; the tension wheel is arranged at the upper end of the swing arm; the upper end of the pull rod is articulated with a guide pin fixed at the end of the transverse arm; the upper end of the tension spring is hooked on the vertical arm; the lower end of the tension spring is hooked on the lower part of the mowing table machine frame; the brake block is fixed at the end of the vertical arm through a bending arm; and the transmission belt passes through the tension wheel, the power output wheel at the lower part of the mowing table machine frame and the mowing cutter transmission wheel at the upper part of a mowing table in a surrounding manner. The belt transmission clutch device disclosed by the utility model has the advantages of compact structure, convenience for installation and good clutch effect. Because a connecting rod mechanism comprising a plurality of rods in the prior art is replaced only by using one swing arm and one tension spring, the structure of a mowing cutter transmission clutch device is simplified, the manufacture cost is reduced, the reliability of the device is increased, and the service life of the device is prolonged.

Description

Hay mower belt transmission arrangement of clutch

Technical field

The utility model relates to a kind of hay mower arrangement of clutch, and especially a kind of multitool hay mower bel-drivenn arrangement of clutch belongs to the graden machine technical field.

Background technology

It is many cutter rotation mowing that the multitool hay mower generally adopts belt that power is reached ceding of Taiwan driving from engine, and wherein the bel-drivenn arrangement of clutch mainly contains: Dian Ci Li He Qi ﹑ mechanical clutch and belt tension formula arrangement of clutch.The belt system of electromagnetic clutch is simple in structure, but cost is very high; Mechanical clutch belt system structure is simple relatively, but service life is short, and the higher while cost of fault rate is also higher relatively; Belt tension formula arrangement of clutch is the reliable kind of drive of a kind of this ﹑ of Di Cheng, but existing belt transmission arrangement of clutch through the linkage in the ceding of Taiwan and stage clip extension spring control belt tension with unclamp the realization clutch, structure is comparatively complicated, manufacturing cost is higher.

Summary of the invention

The purpose of the utility model is under the prerequisite that does not influence the hay mower performance, provides a kind of structure comparatively simple bel-drivenn arrangement of clutch,

The utility model is achieved through following technical scheme:

A kind of hay mower belt transmission arrangement of clutch; Comprise power output wheel, idler, regulating wheel, swing arm, brake block, extension spring, pull bar and driving-belt; It is anti-L shaped that said swing arm is, and comprises perpendicular arm and transverse arm, and the swing arm bottom is hinged through jointed shaft and ceding of Taiwan middle part; Said regulating wheel is arranged on the swing arm upper end; The pull bar upper end is hinged with the pilot pin that is fixed on the transverse arm termination; The extension spring upper end is hooked on the perpendicular arm; The extension spring lower end is hooked on the ceding of Taiwan bottom, and brake block is fixed on through curved boom on the termination of perpendicular arm, and drive belt ring is on the idler on the power output wheel of regulating wheel, ceding of Taiwan bottom and ceding of Taiwan top.

The purpose of the utility model can also further realize through following technical measures.

Aforesaid hay mower belt transmission arrangement of clutch, wherein said pull bar comprise slide, with the bull drilling and backward pulls that slide one end is fixedly connected, said slide is provided with vertical straight trough, pilot pin one end passes vertical straight trough and is fixed on the transverse arm termination.

The utility model compact conformation, easy for installation, clutch is respond well.Only, simplified the structure of belt transmission arrangement of clutch, saved the space of transmission mechanism with a swing arm and the linkage that extension spring replaces many bars of prior art to form; Improve transmission performance; Reduce manufacturing cost, improved the reliability of device, prolonged the service life of device.

Advantage of the utility model and characteristics will illustrate through the non-limitative illustration of following preferred embodiment and explain that these embodiment only provide with reference to accompanying drawing as an example.

Description of drawings

Fig. 1 is the structural representation that the driving-belt of the utility model is in tensioning state;

Fig. 2 is the structural representation that the driving-belt of the utility model is in relaxed state.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Like Fig. 1, shown in Figure 2; Present embodiment comprises power output wheel 1, idler 2, regulating wheel 3, swing arm 4, brake block 5, extension spring 6, pull bar 7 and driving-belt 8; It is anti-L shaped that swing arm 4 is, and comprises perpendicular arm 41 and transverse arm 42, and swing arm 4 bottoms are hinged through jointed shaft 9 and the ceding of Taiwan 10 middle parts; Regulating wheel 3 is arranged on swing arm 4 upper ends, and pull bar 7 upper ends are hinged with the pilot pin 101 that is fixed on transverse arm 42 terminations; Extension spring 6 upper ends are hooked on the last round pin 61 of perpendicular arm 41 upper ends, and the lower end is hooked on the following round pin 62 of the ceding of Taiwan 10 bottoms, and brake block 5 is fixed on the termination of perpendicular arm 41 through the curved boom 51 that is fixedly connected with it.Extension spring 6 can produce counterclockwise or clockwise moment of torsion to swing arm 4 with respect to the diverse location of jointed shaft 9, makes swing arm 4 be stabilized in power and combines and two operating positions of power cut.Driving-belt 8 is looped around on the idler 2 on power output wheel 1 and ceding of Taiwan top of regulating wheel 3, the ceding of Taiwan 10 bottoms.Pull bar 7 comprises slide 71, welds the bull drilling and backward pulls 72 that connects with slide 71 1 ends, and slide 71 is provided with vertical straight trough 711, and pilot pin 101 1 ends pass vertical straight trough 711 and are fixed on transverse arm 41 terminations.When power combines, because the variation of cutter load causes belt tension to change, make swing arm 4 produce vibrations, vertically straight trough 711 can prevent that swing arm 4 from passing to vibrations on the pull bar 7.

The course of work of the utility model is following:

Shown in Fig. 1, when needing to mow, drop-down pull bar 7; Straight trough 711 on the slide 71 moves down; Promote swing arm 4 through pilot pin 101 and rotate counterclockwise around jointed shaft 9 centers, make brake block 5 break away from idler 2, extension spring 6 is positioned at jointed shaft 9 left sides; 6 pairs of swing arms of extension spring 4 produce counterclockwise moment of torsion, and regulating wheel 3 moves to left and tensioning driving-belt 8 under counterclockwise torsional interaction.At this moment, power combines.The power of hay mower cutter engine drives idler 2 rotations through power output wheel 1 through driving-belt 8; Drive right cutter driving wheel 103 rotations through driving-belt II 102 again; Drive left cutter driving wheel 104 rotations through synchronous cog belt 105 simultaneously, driving left and right cutter rotation synchronously cuts the grass on a lawn.

As shown in Figure 2, during braking, last pull bar 7 moves on the straight trough 711 on the slide 71; Promote swing arm 4 through pilot pin 101 and clockwise rotate around jointed shaft 9 centers, make extension spring 6 be positioned at jointed shaft 9 right sides, 6 pairs of swing arms of extension spring produce clockwise moment of torsion; Brake block 5 compresses idler 2 under clockwise torsional interaction, regulating wheel 3 moves to right and unclamps driving-belt 8; Driving-belt 8 is in relaxed state, at this moment, and power cut.Idler 2 stops operating, and driving-belt II 102, synchronous cog belt 105 stop operating, and right cutter driving wheel 103 all stops operating with left cutter driving wheel 104, and left and right cutter quits work.

Except that the foregoing description, 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

1. a hay mower belt transmission arrangement of clutch comprises power output wheel, idler, regulating wheel, swing arm, brake block, extension spring, pull bar and driving-belt, it is characterized in that: said swing arm is anti-L shaped, comprises perpendicular arm and transverse arm; The swing arm bottom is hinged through jointed shaft and ceding of Taiwan middle part; Said regulating wheel is arranged on the swing arm upper end; The pull bar upper end is hinged with the pilot pin that is fixed on the transverse arm termination, and the extension spring upper end is hooked on the perpendicular arm, and the extension spring lower end is hooked on the header frame bottom; Brake block is fixed on through curved boom on the termination of perpendicular arm, and drive belt ring is on the idler on the power output wheel of regulating wheel, ceding of Taiwan bottom and ceding of Taiwan top.

2. hay mower belt transmission arrangement of clutch as claimed in claim 1; It is characterized in that: pull bar comprises slide, the bull drilling and backward pulls that is fixedly connected with slide one end; Said slide is provided with vertical straight trough, and pilot pin one end passes vertical straight trough and is fixed on the transverse arm termination.