CN214403896U - Linear type double-piston compressor - Google Patents

Abstract

The utility model discloses a linear type double-piston compressor, which comprises an outer shell, the both ends of shell are equipped with the end cover, the inside solenoid that has of shell, fixed plate and piston support, solenoid's centre has a through-hole, the inside slide bar that has of through-hole, articulated portion has on the both ends of slide bar, the diameter of slide bar is greater than the diameter of articulated portion, the cover has the spring on the articulated portion, the one end and the slide bar contact of spring, the other end and fixed plate contact, piston support's centre has the piston bore, the piston has in the piston bore, articulated portion passes in the fixed plate extends to the piston bore and articulates through the round pin axle with the piston. The linear type double-piston compressor is simple in structure and ingenious in design, and the magnetic pole direction of the electromagnetic coil is changed by electrically controlling the electromagnetic coil, so that the sliding rod slides up and down in the through hole to push the pistons at two ends to move, and then the linear type double-piston compressor does work to generate high-pressure gas. And both ends of the compressor can generate gas, so that the working efficiency of the compressor is improved.

Description

Linear type double-piston compressor

Technical Field

The utility model relates to a compressor technical field especially relates to a linear type double piston compressor.

Background

In the prior art, the rotating mechanism is composed of a crankshaft and drives a connecting rod to move by eccentric rotation of the crankshaft crank, so that the piston reciprocates in a base of the piston compressor. The plane of the crankshaft in contact with the housing of the piston compressor serves as a thrust surface or, if a bearing, such as a ball bearing, is provided between the crankshaft and the housing, the plane of the crankshaft in contact with the bearing serves as a thrust surface which acts as an axial thrust when the compressor is subjected to axial forces, preventing the crankshaft from shifting in the axial direction. In this solution known from the prior art, the crankshaft throw first needs to be machined eccentrically, while the thrust surface of the crankshaft also needs to be machined. The equipment investment of crankshaft processing is large, and the processing complexity is high. And the piston can only suck and exhaust air from one end, resulting in low efficiency.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects existing in the prior art, the utility model provides a linear type double-piston compressor.

The technical scheme of the utility model is realized like this:

the linear type double-piston compressor comprises a shell and is characterized in that end covers are arranged at two ends of the shell, a base is arranged at the lower end of the shell, an electromagnetic coil, a fixing plate and a piston support are arranged inside the shell, the fixing plate and the piston support are arranged at two ends of the electromagnetic coil, the piston support is arranged at the rear end of the fixing plate, a through hole is formed in the middle of the electromagnetic coil, a sliding rod is arranged inside the through hole, hinged portions are arranged at two ends of the sliding rod, the diameter of the sliding rod is larger than that of the hinged portions, a spring is sleeved on the hinged portions, one end of the spring is in contact with the sliding rod, the other end of the spring is in contact with the fixing plate, a piston hole is formed in the middle of the piston support, a piston is arranged in the piston hole, and the hinged portions penetrate through the fixing plate and extend into the piston hole to be hinged to the piston through pin shafts.

The utility model discloses an among this kind of linear type double-piston compressor, the last mounting hole that has of solenoid, the permanent magnetism post has in the mounting hole.

Implement the utility model discloses a linear type double-piston compressor has following beneficial effect: the linear type double-piston compressor is simple in structure and ingenious in design, and the magnetic pole direction of the electromagnetic coil is changed by electrically controlling the electromagnetic coil, so that the sliding rod slides up and down in the through hole to push the pistons at two ends to move, and then the linear type double-piston compressor does work to generate high-pressure gas. And both ends of the compressor can generate gas, so that the working efficiency of the compressor is improved.

Drawings

Fig. 1 is a schematic structural view of a linear type double-piston compressor of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is an exploded view of the internal structure of FIG. 1;

fig. 5 is a schematic view of the magnetic pole distribution of the permanent magnetic pole of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1 to 4, the linear type double-piston compressor of the present invention includes a housing 1, and the inside of the housing 1 is not limited to the structure of the present application in the actual assembly. Two ends of the shell 1 are provided with end covers 2, and air inlet holes and air outlet holes (not shown in the figure) are additionally arranged on the end covers 2. The lower end of the housing 1 has a base 3. The housing 1 has therein a solenoid coil 4, a fixed plate 5 and a piston holder 6, the fixed plate 5 and the piston holder 6 being at both ends of the solenoid coil 4, and the piston holder 6 being at the rear end of the fixed plate 5.

The electromagnetic coil 4 is provided with a through hole 7 in the middle, a slide rod 8 is arranged inside the through hole 7, and the slide rod 8 can slide in the through hole 7. The two ends of the sliding rod 8 are provided with hinged parts 9, the diameter of the sliding rod 8 is larger than that of the hinged parts 9, the hinged parts 9 are sleeved with springs 10, one ends of the springs 10 are in contact with the sliding rod 8, the other ends of the springs are in contact with the fixed plate 5, the middle of the piston support 6 is provided with a piston hole 11, a piston 12 is arranged in the piston hole 11, and the hinged parts 9 penetrate through the fixed plate 5 and extend into the piston hole 11 to be hinged with the piston 12 through pin shafts 13.

During operation, the magnetic pole direction of the electromagnetic coil 4 is controlled electrically, so that the sliding rod 8 slides up and down in the through hole 7, the pistons 12 at two ends are pushed to do work, the pistons 12 can be pushed to generate gas by the aid of the sliding rod 8 doing work at each time, and the working efficiency of the compressor is improved.

And has a mounting hole 14 on the electromagnetic coil 4, and a permanent magnet pole 15 in the mounting hole 14. The electromagnetic coil 4 generates a traveling wave magnetic field, the permanent magnetic column 15 generates a secondary magnetic field, and the traveling wave magnetic field and the secondary magnetic field interact with each other to generate electromagnetic thrust. The permanent magnetic column 15 is used for assisting the electromagnetic coil 4 to push the sliding rod 8. However, when the permanent magnetic column 15 is not added, the electromagnetic coil 4 can push the sliding rod 8, and after the permanent magnetic column 15 is added, the electromagnetic coil 4 can push the sliding rod 8 more quickly.

As shown in fig. 5, four permanent magnet columns 15 are uniformly arranged in the mounting holes 14 of the electromagnetic coil 4, and the four permanent magnet columns 15 have opposite magnetic poles in pairs and are arranged at intervals. Namely, the S pole of the permanent magnet column at the first position faces inwards, the S pole of the permanent magnet column at the second position faces outwards, the S pole of the permanent magnet column at the third position faces inwards, and the S pole of the permanent magnet column at the fourth position faces outwards.

The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (2)

1. The linear type double-piston compressor comprises a shell and is characterized in that end covers are arranged at two ends of the shell, a base is arranged at the lower end of the shell, an electromagnetic coil, a fixing plate and a piston support are arranged inside the shell, the fixing plate and the piston support are arranged at two ends of the electromagnetic coil, the piston support is arranged at the rear end of the fixing plate, a through hole is formed in the middle of the electromagnetic coil, a sliding rod is arranged inside the through hole, hinged portions are arranged at two ends of the sliding rod, the diameter of the sliding rod is larger than that of the hinged portions, a spring is sleeved on the hinged portions, one end of the spring is in contact with the sliding rod, the other end of the spring is in contact with the fixing plate, a piston hole is formed in the middle of the piston support, a piston is arranged in the piston hole, and the hinged portions penetrate through the fixing plate and extend into the piston hole to be hinged to the piston through pin shafts.

2. The linear type double piston compressor as claimed in claim 1, wherein said solenoid has a mounting hole therein with a permanent magnet post.

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