CN2315355Y - Separatable reducing stepless speed changer - Google Patents

Abstract

The utility model discloses a reducing stepless speed changer which can be separated. In the utility model, a ferry steamer is installed between a driving fixed hammer wheel of a driving wheel and a driving movable hammer wheel in order to solves the problem that the existing triangle or block and strip reducing type stepless speed changer is additionally provided with a clutch for realizing stopping and starting to cause the speed changer have the disadvantages of complicated mechanical structure, high cost, inconvenient maintenance and inconvenient operation. The utility model has the advantages of convenient operation and less possibility of damage for machines.

Description

But the diameter reducing type stepless speed variator of clutch

The utility model relates to a kind of speed change gear, especially a kind of diameter reducing type stepless speed changes devices.

The present diameter reducing type stepless speed variator that mechanically uses, for realize stopping, start-up course needs to install in addition clutch, makes complicated in mechanical structure, cost increases, inconvenient maintenance, simultaneously, speed changer, clutch will be controlled respectively, therefore are unfavorable for that the workman operates.

The purpose of this utility model provides a kind of simple in structure, clutch, speed change is the speed changer of one.

But the utility model is achieved in that a kind of diameter reducing type stepless speed variator of clutch, comprise driving shaft, the active stable hammer wheel, the active movable hammer wheel, vee belt or piece band driven axle, passive stable hammer wheel and passive movable hammer wheel, on the driving shaft between active stable hammer wheel and the active movable hammer wheel, a transition wheel is arranged, transition wheel is contained on the driving shaft by bearing, in active movable hammer wheel inboard one cavity is arranged, and the size and the transition wheel of cavity adapt.

The utility model is owing to increased transition wheel between main movable hammer wheel, when control mechanism is controlled main movable hammer wheel and is moved right, the driving wheel diameter diminishes, rotating speed reduces, and when the active movable hammer wheel continued to move right certain distance, belt just dropped on the transition wheel, belt and driving wheel lose frictional force, belt stops operating, and driven wheel also stops operating, promptly be in from state, when main movable hammer wheel is moved to the left, touch belt, belt obtains frictional force, begins to rotate, promptly enter the state that closes, initiatively movable hammer wheel continues to be moved to the left, and initiatively hammers wheel diameter into shape and becomes big, and speed increases, therefore, play the clutch speed-changing effect, and can realize slowly quickening and slowly slowing down not fragile machinery.

The utility model is described in further detail below in conjunction with accompanying drawing:

Structural representation during state that Fig. 1 closes for the utility model

Fig. 2 be the utility model from state the time structural representation

As shown in Figure 1: driving wheel includes initiatively stable hammer wheel 4 and initiatively movable hammer wheel 5 on driving shaft 1, on the driving shaft 1 between active stable hammer wheel 4 and the active movable hammer wheel 5, transition wheel 2 is arranged, transition wheel 2 is contained on the driving shaft 1 by bearing 9, initiatively there is a cavity 10 movable hammer wheel 5 inboards, the size of cavity 10 and transition wheel 2 adapt, driven wheel comprises passive stable hammer wheel 7 and passive movable hammer wheel 8 on driven axle 6, and belt 3 connects the driven wheel of driving wheel; When the state that closes, belt 3 and stable hammer wheel 4 initiatively and initiatively movable hammer wheel 5 contact, stressed and drive driven wheel rotation, at this moment transition wheel 2 is in the cavity 10 of active movable hammer wheel 5, when active movable hammer wheel 5 is moved to the left, the driving wheel diameter is increased, and the driven wheel diameter reduces, and rotating speed increases, when the active movable hammer wheel moves right, the driving wheel diameter is reduced, and the driven wheel diameter increases, and rotating speed reduces.

As shown in Figure 2, driving wheel includes initiatively stable hammer wheel 4 and initiatively movable hammer wheel 5 on driving shaft 1, on the driving shaft 1 between active stable hammer wheel 4 and the active movable hammer wheel 5, transition wheel 2 is arranged, transition wheel 2 is contained on the driving shaft 1 by bearing 9, initiatively there is a cavity 10 movable hammer wheel 5 inboards, the size of cavity 10 and transition wheel 2 adapt, and driven wheel comprises passive stable hammer wheel 7 and passive movable hammer wheel 8 on driven axle 6, and belt 3 connects the driven wheel of driving wheel; From state the time, belt 3 drops on the transition wheel 2, because belt 3 do not contact with driving wheel, loses the power of rubbing, and driving wheel is dallied, driven wheel stops operating.

Claims (1)

1. but the diameter reducing type stepless speed variator of a clutch, comprise driving shaft [1], active stable hammer wheel [4], active movable hammer wheel [5], vee belt or piece band [3], driven axle [6], passive stable hammer wheel [7] and passive movable hammer wheel [8], it is characterized in that: on the driving shaft [1] between active stable hammer wheel [4] and the active movable hammer wheel [5], a transition wheel [2] is arranged, transition wheel [2] is contained on the driving shaft [1] by bearing [9], in active movable hammer wheel [5] inboard one cavity [10] is arranged, the size of cavity [10] and transition wheel [2] adapt.

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