CN2253670Y

CN2253670Y - Belt transmission mechanism for high and low speed roller of rubber roller husking machine

Info

Publication number: CN2253670Y
Application number: CN 95238331
Authority: CN
Inventors: 王希宁
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-12-29
Filing date: 1995-12-29
Publication date: 1997-05-07
Anticipated expiration: 2005-12-29

Abstract

The utility model relates to a belt transmission mechanism, particularly a fast and slow roller belt transmission mechanism of a rubber roller husking machine, which is mainly composed of fast roller shaft belt pulley, a slow roller shaft belt pulley, a slow roller support frame, an intermediate wheel and intermediate zone wheel shaft. The slow roller shaft belt pulley adopts the intermediate zone wheel and the transmission of the belt transmission, the motion of the slow roller can not cause the length of the transmission belt to change or to change imperceptibly, thereby, the defect that the transmission efficiency of the fast and slow roller of the rubber roller husking machine caused by the length change of the transmission belt is overcome.

Description

Fast, the slow roller belt gear of rubber roll husker

The utility model relates to a kind of belt gear, fast, the slow roller belt gear of particularly a kind of rubber roll husker.

Rubber roll husker is used for to paddy husking in the paddy rice milling process, and grain is clipped in the middle of two rubber rollers with the rotation of different linear speeds, and husk is torn the back to be separated with its mesogranule, the switched in opposite of two rubber rollers wherein, and certain substantially speed ratio is arranged.Use gear drive between two rollers in traditional structure, because of the gear drive accuracy of mesh requires highly, noise is not bigger when generally reaching, and gear lubricant causes grain contamination when leaking, and its maintenance cost is also higher.More domestic in recent years grain machine producers have made original gear drive into synchronous cog belt or the transmission of two-sided V-belt, though overcome gear-driven shortcoming, but because want frequent shift position in the slow roller operation, the length of that part of belt that holds belt wheel is changed, in the use belt creep can take place and accelerated wear test and make slow roll shaft stall, the paddy shell-breaking rate is reduced, sometimes belt can be pulled apart again, generally be to use torsion spring or weight (as motor) to drive at this problem and compress belt wheel auto-tensioning belt, require great effort when operating like this, and the size of torsion spring torsion changes with the deformation size of torsion spring, and belt does not reach suitable pulling force sometimes when working and transmission efficiency is reduced.

When the purpose of this utility model was to provide fast, the slow roller belt transmission of a kind of rubber roll husker, moving of slow roller can not cause the driving belt length variations or change very little transmission mechanism.

The purpose of this utility model realizes by following manner: fast, the slow roller belt gear of a kind of rubber roll husker, comprise fast roll shaft belt pulley, slow roll shaft belt pulley, slow roller support and driving belt, slow roll shaft belt pulley is by transition pulley, driving belt transmission, and the intermediate zone wheel shaft is positioned on the perpendicular bisector of the slow roller support swing string that circular arc comprised and is loaded on the frame.Fast roll shaft belt pulley can be by electrical machine belt pulley through belt drives, and drive transition pulley and regulating wheel successively, fast roll shaft belt pulley and transition pulley and slow roll shaft belt pulley switched in opposite by belt.Transition pulley and fast roll shaft belt pulley also can be separately-driven through electrical machine belt pulley by two motors.Transition pulley can be that duplex belt wheel or parallel installation are fixed on two belt wheels on the intermediate zone wheel shaft.The intermediate zone wheel shaft can be the rotating shaft of slow roller support.

The structure that the utility model adopted makes moving of slow roller can not cause driving belt length variations or length variations very little, thereby overcomes the defective that changes the transmission efficiency reduction that causes fast, the slow roller belt gear of rubber roll husker because of strap length.

Accompanying drawing has provided three embodiment of the present utility model.

Fig. 1 is fast, the slow roller belt gear structural representation of the existing rubber roll husker of the utility model;

Fig. 2 is the utility model embodiment 1 structural representation;

Fig. 3 is the utility model embodiment 2 structural representations:

Fig. 4 is the utility model embodiment 3 structural representations.

With reference to the accompanying drawings the utility model is described in further detail:

With reference to Fig. 1, fast, the slow roller belt gear of existing rubber roll husker is for grasping because of slow roller Want frequent shift position in the work, the length of the belt that holds belt wheel is changed, take place in the use Belt creep and accelerated wear test also make slow roll shaft stall, and the paddy shell-breaking rate is reduced, and sometimes again can Problem with belt is pulled apart adopts and installs belt tensioning mechanism additional, namely uses regulating wheel shown in Figure 1 3 structures, fast roll shaft upper belt pulley 1 and slow roll shaft upper belt pulley 2 switched in opposite among Fig. 1, slow roll shaft By around the shaft 7 swings of slow roller support 6 move left and right causes ABC section strap length among the figure Change, tension pulley 3 is rotated and automatic tensioning belt around axle 4 by 5 controls of torsion spring in the rotating shaft 4, 8 is electrical machine belt pulley, and 9 is two-sided V-belt or two-sided synchronous toothed belt, during this structure operation Require great effort, and because the size of torsion spring torsion changes the beltman with the deformation of torsion spring is big or small Sometimes do not reach suitable pulling force when doing and transmission efficiency is reduced.

Embodiment 1:

With reference to Fig. 2, the structure of transition pulley is set at slow roller rack shaft place for the utility model, in the present embodiment, fast roll shaft belt pulley 11 links with electrical machine belt pulley 18 through two-sided V-belt 19 with transition pulley 17 and regulating wheel 13, transition pulley 17 and fast roll shaft belt pulley 11 switched in opposite, transition pulley 17 is the duplex belt wheel, wherein small pulley drives slow roller belt pulley 12 through belt 10, it is identical that transition pulley 17 and slow roll shaft belt pulley 12 turn to, and intermediate zone wheel shaft 16 promptly is the rotating shaft 15 of slow roller support 14, like this, when slow roller support 14 is swung, two

belts

10 and 19 length can not change, and make more stable transmission reliable, operate easy and convenient.

Embodiment 2

With reference to Fig. 3, the structure of transition pulley is set on the perpendicular bisector of the slow roller support swing string that circular arc comprised for the utility model, in the present embodiment, intermediate zone wheel shaft 16 positions are on the perpendicular bisector of the slow roller support swing string that circular arc comprised, also promptly on the extended line of slow roller support 14 oscillation center positions and slow roller rack shaft 15 connecting shaft lines, and from slow roller support 14 rotating shafts 15 close together.When slow roller support 14 swings, slow roll shaft is more little to the centre-to-centre spacing of transition belt shaft 16 like this, and just more little to the influence that the degree of tightness of belt 10 changes, all the other connections and the kind of drive are identical with embodiment 1.

Embodiment 3

With reference to Fig. 4, the utility model also can adopt fast roll shaft belt pulley 11 and transition pulley 17 to be driven through belt wheel and common V-

belt

20,21 by two motors respectively, the two-wheeled switched in opposite, slow roll shaft belt pulley 12 is driven by transition pulley 17 and belt 10, it turns to opposite with fast roll shaft belt pulley 11, and when slow roller support 14 was put, the length of V-

belt

20,21,10 did not change like this, this structure is applicable in the unit equipment of multiple electric motors is housed, and less expensive.

Claims

1. fast, the slow roller belt gear of a rubber roll husker, comprise fast roll shaft belt pulley [11], slow roll shaft belt pulley [12], slow roller support [14] and driving belt, it is characterized in that: slow roll shaft belt pulley [12] is by transition pulley [17], driving belt [10] transmission, and intermediate zone wheel shaft [16] is positioned on the perpendicular bisector of slow roller support [14] the swing string that circular arc comprised and is loaded on the frame.

2. according to fast, the slow roller belt gear of the described rubber roll husker of claim 1, it is characterized in that: fast roll shaft belt pulley [11] is to be driven through belt [19] by electrical machine belt pulley [18], and drive transition pulley [17] and regulating wheel [13] successively by belt [19], fast roll shaft belt pulley [11] and transition pulley [17] and slow roll shaft belt pulley [12] switched in opposite.

3. according to fast, the slow roller belt gear of rubber roll husker that claim 1 is confused, it is characterized in that: transition pulley [17] and fast roll shaft belt pulley [11] are separately-driven through electrical machine belt pulley by two motors.

4. fast according to the described rubber roll husker of claim 1, slow roller belt gear is characterized in that: transition pulley [17] is duplex belt wheel or parallel installation and is fixed on two belt wheels on the intermediate zone wheel shaft [16].

5. according to fast, the slow roller belt gear of claim 1 or 2 or 3 or 4 described rubber roll huskers, it is characterized in that: intermediate zone wheel shaft [16] is the rotating shaft [15] of slow roller support [14].