CN2114058U

CN2114058U - Model-v compressor balancing device

Info

Publication number: CN2114058U
Application number: CN 92201187
Authority: CN
Inventors: 王再顺; 李鸣
Original assignee: Jiangxi University of Science and Technology
Current assignee: Jiangxi University of Science and Technology
Priority date: 1992-01-29
Filing date: 1992-01-29
Publication date: 1992-08-26

Abstract

The utility model relates to a V-shaped compressor balancing device without 90 DEG. An elliptical slideway is arranged on a bearing cap of the existing compressor, the position of the opposite direction of a crank shaft is provided with a slide slot, a slide block is arranged in the slide slot, and the slide block can move along the elliptical slideway to generate rotary inertia force to balance the original first-order reciprocating inertia force. Via site test, the residual value of the first-order reciprocating inertia force, which is balanced by the utility model only takes 8-27% proportion of the original value; thus, the balancing effect is obvious. The V-shaped compressor balancing device without 90 DEG can be used for obviously improving manufacturing environment and improving the service life of compressors.

Description

Model-V compressor balancing device

The utility model relates to a kind of by utilizing the element that moves with system to suppress the device that rotary system vibrates, especially a kind of Equilibrator of non-90 ° of V-type compressor single order reciprocal inertia forces.

At present, the V-type compressor of γ ≠ 90 °, the balance of its single order reciprocal inertia force is all solved to practice theoretically at all.If adopt the balance method of γ=90 ° V-type compressor, promptly crankshaft pin oppositely add balancer weight (we are referred to as the fixed balance weight method, down with), then the balance of its single order reciprocal inertia force is not had the essence effect, in some cases, even the amplitude of inertial force is increased.

The purpose of this utility model just provide a kind of simple in structure, under the situation that does not change machine original structure form, but the device of the non-90 ° of V-type compressor single order reciprocal inertia forces of balance (we be referred to as moving equilibrium heavy method).

Technical solution of the present utility model is: process an oval slideway in the inboard of bearing cap, the opposite direction of crankshaft crank is processed a chute, between chute and oval slideway, a slide block is set, one end of this slide block is embedded in the chute, the other end contacts with oval slideway, the slide block that rotates synchronously with bent axle moves along oval slideway in chute, but slide block, chute and oval slideway have constituted the device of the non-90 ° of V-type compressor single order reciprocal inertia forces of balance.

For the V-type compressor of γ ≠ 90 °,, then be m when the radius vector of balancer weight is long-pending if continue to use the fixed balance weight method of the V-type compressor of γ=90 ° ₃R, 2m ₃Rsin ²γ/2,2m ₃Rcos ²γ/2 o'clock, the amplitude I of the residue single order reciprocal inertia force of its level and Vertical direction _Rx, I _RyThe amplitude I of unidirectional single order reciprocal inertia force when not adopting balanced measure _x, I _yRatio see Table 1; And adopt moving equilibrium to weigh method, the amplitude I of the residue single order reciprocal inertia force of its level and Vertical direction _Rx, I _RyThe amplitude I of unidirectional single order reciprocal inertia force when not adopting balanced measure _x, I _yRatio see Table 2.

From table 1, table 2 as seen:

1, if adopts the fixed balance weight method to balance the single order reciprocal inertia force of a certain direction, then become the surplus value of single order reciprocal inertia force of 90 ° other direction still to exist with this direction, the ratio that this surplus value accounts for initial value is 30%～200%, the neglecting the γ angle greatly of ratio and deciding.

2, if adopt the fixed balance weight method to take into account the single order reciprocal inertia force of two directions of balance, then the surplus value of the single order reciprocal inertia force of two directions all exists, and the ratio that its surplus value accounts for initial value is 15%～100%.

3, adopt the single order reciprocal inertia force of two directions of the heavy method balance of moving equilibrium, the ratio that its surplus value accounts for initial value only is 8%～27%, be significantly less than the shared ratio of fixed balance weight method, and the γ angle departs from 90 ° far away, the effect of the heavy method of moving equilibrium just more obviously.

Fig. 1 is a structural representation of the present utility model.

Below in conjunction with accompanying drawing, the utility model is described in further detail:

The inner side surface of bearing cap 5 is processed an oval slideway 3, the opposite direction of crankshaft crank has been processed a chute 2, between chute 2 and oval slideway 3, be provided with slide block 1, one end of slide block 1 is embedded in the chute 2, the other end contacts with oval slideway 3, when bent axle 4 rotations, the slide block 1 that rotates moves along oval slideway 3 in chute 2 synchronously, and this motion has promptly produced a rotating inertia force and come the original single order reciprocal inertia force of balance.

Claims

1, a kind of non-90 ° of V-type compressor balance devices, it is characterized in that: processed oval slideway 3 at the inner side surface of bearing cap 5, the opposite direction of crankshaft crank has been processed chute 2, between chute 2 and oval slideway 3, be provided with slide block 1, one end of slide block 1 is embedded in the chute 2, the other end contacts with oval slideway 3, and the slide block 1 that rotates synchronously with bent axle 4 moves along oval slideway 3 in chute 2.