JPS6017276A - Gas compressor - Google Patents

Abstract

PURPOSE:To efficiently distribute torque which works on a driven axis by arranging the driven axis and an operation axis eccentric with other and connecting crankpins on crank arms arranged on the two axes to each other by a link. CONSTITUTION:Each one end of a driven axis 1 which rotates, being connected to a driving system, and an operation axis 2 which reciprocates a compressive piston through a crank mechanism faces to each other. And the two axes are supported on respective bearings eccentric with each other along the two parallel lineds located at the predetermined distance. A crank arm 3 is fixed to one end of the driven axis 1 and a crank arm 6 which is to reciprocate a compressive piston 5 through a piston rod 4 is fixed to one end of the operation axis 2. Further, these crank arms 3 and 6 are connected together by a link 9 of the necessary length through respective crankpins 7 and 8.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gas compressor, and relates to a reciprocating compressor that efficiently distributes torque acting on a driven shaft connected to a motor or the like and rotates during compression. This reduces the load on the vehicle and allows for smooth operation.

An embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 3, a compression piston is reciprocated through a driven shaft 1 connected to a drive mechanism such as a motor and rotated, and a crank mechanism. An operating shaft 2 is provided in each bearing with one end facing each other and eccentric to each other along two parallel lines located at a predetermined interval. A crank arm 3 is fixed to one end of the driven shaft 1, and a crank arm 6 which reciprocates a compression piston 5 via a piston rod 4 is fixed to one end of the operating shaft 2. Connect each crank pin 7.8 to create a link 9 of the required length.
are connected.

This invention has the above-mentioned structure, and while in conventional devices the crank mechanism for raising and lowering the compression piston is directly provided on the driven shaft, in this invention, a separate link is provided. Therefore, their effects differ as described below.

The state in which the air in the cylinder is compressed by the piston will be explained for a conventional device and the device of the present invention. FIG. 4 shows a conventional example, and FIG. 4 ((A) shows the driven shaft 1'
The piston 5' moves up inside the cylinder and reaches the intermediate position by the crank arm 6' of , and then the compression progresses further in Fig. 4(B), and the piston 5' reaches the most compressed position in Fig. 4(C). When this point is reached, the crank arm 6' becomes nearly vertical, and the load on the driven shaft 1' decreases. In this way, the same figure (
Figures 5(A), 5(B), and 5(C), in which the largest force is applied to the driven shaft 1' at the stage when compression begins, as shown in A), show the compression stroke in this invention. In FIG. 5(A), the crank arm 6 connected to the piston 5 is pulled by the crank arm 3 of the driven axle, which is rotated clockwise in the figure via a motor or the like, and is horizontal. The crank arm 3, which pulls via the link 9, is approaching vertical. This means that while the crank arm 3 passes the vertical position and reaches the state shown in FIG. crank pin 7
Since this is the dead center, the force to rotate the crank arm 6 can be extremely small during that time due to the same effect as the trouble. In this way, when the crank arm 6 approaches the vertical position as shown in FIG. 5(C) and the compression is at its maximum, the crank arm 3 approaches the horizontal state from the state shown in FIG. 5(B), and its load does not increase significantly.

As described above, this invention can greatly reduce the power load at the start of compression, and as a result of experiments, the eccentricity between the driven shaft 1 and the actuating shaft 2 has been determined by reducing the stroke of the piston 5 by 100 degrees. ．． In other words, when the length of the crank 6 of the operating shaft 2 is 50, the distances a and b between the two shafts 1.2 are set to a=10 to 20 and b=10 to 30, respectively, as shown in FIG.
We obtained initial results as follows.

As explained above, this invention can achieve average rotation by reducing the power load applied during compression.
It is particularly suitable for use in small devices.

[Brief explanation of the drawing]

FIGS. 1 to 3 are explanatory diagrams showing an embodiment of the present invention, and show a front view, a side sectional view, and a slope view, respectively. FIGS. 4(A), 4(B), and (C) are explanatory diagrams showing the operating order of the conventional device, and FIGS. 5(A), CB, and (C) are explanatory diagrams showing the operating order of the present invention. 1 is a driven shaft, 2 is an operating shaft, 3 and 6 are crank arms, 5
indicates a compression piston, 7.8 indicates a crank bottle, and 9 indicates a link. Patent applicant: Furudate Actual agent: Toshiaki Ikeura Figure 1 Figure 2 (A) Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] (1) A driven shaft connected to an arbitrary drive mechanism and an operating shaft that reciprocates a compression piston by a crank mechanism are arranged with one end facing each other and eccentric to each other, and a crank is attached to one end of the driven shaft. A crank arm forming the crank mechanism is provided at one end of the arm and the operating shaft,
Furthermore, the crank pins of these crank arms are connected via a link of a required length, so that during rotation, the crank pin of the driven shaft is always in a position preceding the crank pin of the operating shaft in the rotational direction.