KR20060030748A - A linear slider having gas leakage preventing function using a orbiting vane compressor - Google Patents

Abstract

The present invention relates to a linear slider installed in the compression section of the swing vane compressor, and more particularly, to minimize the leakage of the compressed gas to the contact portion of the linear slider provided in the compression section,

It is coupled to the circular vane of the compression section, and the contact surface is formed on both sides to contact the inner wall of the cylinder and the inner ring, and the upper and lower contact surfaces are formed to contact the lower surface of the cylinder and the upper surface of the turning vane. In the linear slider of the swing vane compressor partitioned to the low pressure side, each contact surface of the linear slider is provided with a leakage preventing part so as to prevent leakage of compressed gas due to linear reciprocating motion of the linear slider. It relates to a linear slider for swing vane compressor having.

Description

Linear slider having gas leakage preventing function using a orbiting vane compressor}

1 is a main longitudinal sectional view schematically showing a compressor which is a general swing ship.

Figure 2 is an exploded perspective view of the main portion schematically showing the compression unit according to FIG.

3 is a planar sectional view of principal parts schematically showing the compression state of the compression unit according to FIG. 2;

Figure 4 is a perspective view of the main portion schematically showing the slider of the present invention.

Fig. 5 is a schematic sectional plan view showing main parts of the state in which the slider of the present invention is installed in the compression unit.

Figure 6 is a perspective view of the main portion schematically showing another embodiment of the present invention.

Explanation of symbols for the main parts of the drawings

4: cylinder

   41: inner ring 42: annular space

5: turning vane

   51: circular vane 53: opening

   54: linear slider 54a, 54b: contact surface

10: Leak prevention part

   12,12a: chamber

P: Compression part

The present invention relates to a linear slider installed in the compression section of the swing vane compressor, and more particularly, to a part in contact with the contact surface of the linear slider provided in the compression section. It relates to a linear slider for swing vane compressor having.

As shown in FIG. 1, a swing vane compressor that is generally used is provided in a sealed form with a driving unit D and a compression unit P inside one shell 1, and the driving unit D and the compression unit ( P) is interconnected by vertical crankshafts 8 rotatably supported by the upper and lower mainframes 6 and subframes 7 to drive the power of the drive unit D through the crankshafts 8. It is comprised so that it may be delivered to the compression part P side.

The driving unit D includes a stator 2 fixed between the main frame 6 and the subframe 7 and a crank shaft vertically penetrated by an applied power provided inside the stator 2. Rotor (3) for rotating the (8), the upper and lower balance weights (3a) are mounted symmetrically to each other in the upper and lower parts of the rotor (3) due to the rotational imbalance of the crank shaft (8) by the crank pin 81 It is provided to prevent.

The compression part (P) is introduced into the cylinder (4) while the swing vane (5), in which the lower boss portion (55) coupled to the crank pin (81), swings inside the cylinder (4). It is configured to compress the refrigerant gas, the cylinder (4) includes an inner ring (41) protruding to the lower side, the turning vane (5) is a circular vane (51) protrudes vertically on the upper side It is formed so as to pivot in the annular space 42 formed between the inner ring 41 and the inner wall of the cylinder (4).

Accordingly, a compression chamber is formed inside and outside of the circular vane 51 by the turning motion, and the refrigerant gas compressed in the compression chamber is discharged from the inner and outer discharge ports 44 and 44a of the upper cylinder 4. It is configured to be discharged to the outside of the cylinder (4) through.

In addition, an all-damping ring 9, which is an anti-rotation tool, is provided between the main frame 6 and the turning vane 5, and an oil supply passage 82 penetrates up and down inside the crank shaft 8 is formed. By the operation of the oil pump 83 installed on the lower end of the crankshaft (8) is configured so that the oil can be made to the compression unit (P).

Reference numeral 11 denotes a suction tube, 12 a high pressure chamber, and 13 a discharge tube.

2 is an exploded perspective view illustrating main parts of the compression unit according to FIG. 1.

As shown, the compression unit (P) is provided with a turning vane (5) coupled with the crank shaft (8) at the upper end of the main frame (6) rotatably supporting the upper side of the crank shaft (8) The upper side of the turning vane 5 is provided with a cylinder 4 coupled to the main frame 6, and the cylinder 4 has a suction port 43 formed in a lateral direction, and at one side of the upper surface thereof. Inner and outer ejection openings 44 and 44a are formed.

In addition, the circular vanes 51 of the turning vanes 5 in which the lower side bosses 55 are coupled to the crank pins 81 of the crankshaft 8 are connected to each other through the suction port 43 of the cylinder 4. The through hole 52 is formed to suck the refrigerant gas sucked into the inner side of the circular vane 51, and the inner ring and the inner wall of the cylinder 4 are formed in the opening 53 formed at one side of the circular vane 51. A linear slider 54 which is in contact with the high pressure side and the low pressure side and reciprocates in a straight line by the swinging movement of the swing vane is provided.

Reference numeral 9 is an Oldham ring.

3 is a planar cross-sectional view of main parts schematically illustrating a compression state of the compression unit according to FIG. 2.

As shown in the drawing, when the turning vanes 5 of the compression unit P are driven by receiving power from the driving unit D through the crankshaft 8, the cylinder 4 The circular vane 51 of the turning vane 5 inserted into the annular space 42 of the swing circle turns inside the annular space 42 formed between the inner wall of the cylinder 4 and the inner ring 41 as shown by the arrow. During the movement, the refrigerant gas sucked into the annular space 42 through the suction port 43 is compressed.

In other words, the initial operating state (0 °) is the suction of the refrigerant gas into the inside of the inner suction chamber (A1) through the through hole 52 of the suction port 43 and the circular vane 51, the circular vane Compression starts in the state in which the outer compression chamber B2 is blocked from the inlet 43 and the outer discharge port 44a, and the inner compression chamber A2 simultaneously compresses and discharges the refrigerant gas.

In the state rotated by 90 °, the compression of the outer compression chamber B2 of the circular vane is still in progress, and the inner compression chamber A2 of the circular vane is almost completely discharged from the compressed refrigerant gas through the inner discharge port 44. In this case, the outer suction chamber B1 that did not exist in the previous step is generated and suction of the refrigerant gas is made through the suction port 43.

In the rotated state by 180 °, the inner suction chamber A1 existing in the previous step disappears, and instead, the inner suction chamber A1 becomes the inner compression chamber A2 to start compression, and the outer compression chamber B2 Is a discharge of the refrigerant gas compressed through the outer discharge port 44a.

In the state of rotating 270 °, the outer compression chamber B2 of the circular vane almost completely discharges the refrigerant gas compressed through the outer discharge port 44a, and the inner compression chamber A2 continues to compress the outer surface. Compression to the suction chamber (B1) is started, and when rotated further 90 degrees in the above state, the outer suction chamber (B1) that existed in the previous step becomes the outer compression chamber (B2) and the outer compression chamber (B2) By returning to the original state while the compression is performed, the cycle based on one rotation of the crankshaft is continuously repeated.

The linear slider installed in the opening 53 of the circular vane 51 in the process of the compression in the inner and outer compression chamber (A2) (B2) according to the rotational movement of the circular vane 51 in the compression chamber as described above ( 54 is in contact with the contact surface formed on both sides is in close contact with the vertical surface formed on the inner wall vertical surface of the cylinder (4) and the outer surface of the inner ring 51 and at the same time the contact surface formed on the upper and lower surfaces and the bottom surface of the cylinder (4) In close contact with the upper surface of the turning vane 5, the high pressure side and the low pressure side were partitioned, and the reciprocating motion was performed in a straight line according to the turning motion.

However, as the contact surfaces formed on both sides of the conventional linear slider are simply in surface contact with the corresponding vertical surfaces of the inner wall of the cylinder and the inner ring, the linear reciprocating motion of the linear slider according to the continuous turning movement is also continuously repeated. Abrasion occurred in the contacted portion, and not only a gap was formed, but also a leak occurred between the high pressure side and the low pressure side due to the pressure difference between the high pressure side and the low pressure side.

Accordingly, there is a problem that the necessary compression is not smoothly performed due to leakage generated between the high pressure side and the low pressure side.

In addition, a problem arises that the above problem occurs as it occurs between the top surface of the swing vane and the bottom surface of the cylinder in contact with the contact surface of the top and bottom of the linear slider.

Accordingly, the present invention has been made to solve the conventional problems as described above, the object is to minimize the leakage of the compressed gas to the contact portion of the linear slider in the compression section of the swing vane compressor.

Another object of the present invention is to minimize the leakage of compressed gas in the upper and lower sides as well as both sides of the linear slider.

Another object of the present invention is to be able to more closely block the leakage of the compressed gas.

The present invention for achieving the above object, is coupled to the circular vane of the compression portion is formed in the contact surface contacting the inner wall and the inner ring of the cylinder on both sides, the upper and lower surfaces of the cylinder and the upper contact of the turning vane In the linear slider of the swing vane compressor is divided into a high pressure side and a low pressure side according to the linear reciprocating motion, each contact surface of the linear slider so that the compressed gas according to the linear reciprocating motion of the linear slider does not leak It is characterized by comprising a leakage preventing portion.

The leakage preventing portion of the contact surface formed on both sides of the linear slider is characterized in that it is formed in a vertical direction perpendicular to the linear reciprocating motion.

The leakage preventing portion of the contact surface formed on the upper and lower surfaces of the linear slider is characterized in that it is formed in a horizontal direction perpendicular to the linear reciprocating motion.

The leakage preventing part is characterized in that a plurality of chambers recessed from each contact surface is formed in a concave-convex shape.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings by describing the same technical configuration as described above.

4 is a perspective view schematically illustrating main parts of the slider of the present invention, and FIG. 5 is a schematic sectional plan view of the main part of a state in which the slider of the present invention is installed in the compression unit.

As shown in FIG. 2, the vertical surface of the inner wall of the cylinder 4 and the inner ring 41 are coupled to the openings 53 of the circular vanes 51 formed in the turning vanes 5 of the compression unit P. Contact surface 54a is formed in contact with the vertical surface of the upper surface, and the contact surface 54b is formed in contact with the lower surface of the cylinder 4 and the upper surface of the turning vane 5 on the upper and lower surfaces thereof. In the linear slider 54 of the swing vane compressor which partitions into the high pressure side and the low pressure side, holding | maintenance,

According to the present invention, the wear and high pressure side and the low pressure caused by repeated linear reciprocation of the linear slider 54 during the pivoting movement due to the compression action of the swing vanes on the contact surface 54a formed on both sides of the linear slider 54 Due to the pressure difference on the side, the leakage path of the compressed gas is not formed and the leakage preventing part 10 is provided to maintain the airtightness.

The leakage preventing portion 10 formed on both sides of the linear slider and formed on the contact surface 54a contacting the vertical surface of the inner wall of the cylinder and the vertical surface of the outer ring of the inner ring is formed in a vertical direction perpendicular to the linear reciprocating motion of the linear slider. Therefore, it is preferable to have a compressive force corresponding to the linear reciprocating motion so that the compressed gas does not leak.

Preferably, the leakage preventing part 10 has a plurality of chambers 12 recessed from the contact surface 54a in the form of irregularities. In this case, the chamber may be formed in a polygonal shape such as a triangle or a square, or an arc shape such as a semi-circle or the like, embedded in the contact surface.

According to the configuration as described above, the turning vane, which is the compression part according to the compression action, makes the pivoting motion by the rotational movement of the crankshaft, and the circular vane on the upper side of the swinging vane is located between the inner rings of the annular space in the cylinder. Compression is done in the inner and outer compression chamber while turning in.

In this way, the linear vane is coupled so as to partition the high pressure side and the low pressure side while maintaining the airtightness in the opening of the circular vane when the circular vane rotates and compresses, and the contact surfaces formed on both sides of the linear slider have a vertical surface of the cylinder inner wall and The linear reciprocating motion according to the turning motion is repeatedly performed in contact with the vertical surface of the outer surface of the inner ring.

Accordingly, not only wear occurs on the contact surfaces formed on both sides of the linear slider due to continuous linear reciprocating motion, but leakage occurs between the high pressure side and the low pressure side due to the pressure difference between the high pressure side and the low pressure side. It is possible to minimize the leakage by the leakage preventing portion formed.

In other words, the leakage preventing part is formed with a plurality of chambers impregnated from the contact surface, the refrigerant gas leaking from one side of the plurality of chambers as shown in FIG. As such, the refrigerant gas leaked from one chamber 12 on one side is filled to have a constant pressure in the chamber, and thus, the plurality of chambers play a role of several stages of sealing, so that the contact surface It is possible to minimize the leakage of the refrigerant gas between the inner wall of the cylinder and the inner ring in contact with the.

Here, since the plurality of chambers are formed in a vertical direction perpendicular to the linear reciprocating direction of the linear slider, as described above, the sealing force in the chamber according to the linear reciprocating motion of the linear slider is further increased, so that the refrigerant gas It will have a condition to prevent leakage at the source.

6 is a perspective view schematically illustrating main parts of another embodiment of the present invention.

In the above configuration as shown, each contact surface 54b formed on the upper and lower surfaces of the linear slider 54 is in contact with the lower surface of the cylinder and the upper surface of the turning vane to maintain the airtightness of the high pressure side and the low pressure side as described above. In order to prevent the leakage of the compressed gas due to the wear of the contact surface due to the continuous linear reciprocating motion and the pressure difference between the high pressure side and the low pressure side,

The leakage preventing portion 10a of the contact surface 54b formed on the upper and lower surfaces of the linear slider 54 is formed in a horizontal direction orthogonal to the linear reciprocating motion, and the leakage preventing portion 10a is formed by a plurality of recesses from the contact surface. It is shown that the chamber 12a is formed in a concave-convex shape.

Accordingly, the chamber of the leakage preventing portion formed on the contact surface between the upper surface and the lower surface of the linear slider is filled with the refrigerant gas leaking as described above during the linear reciprocation of the linear slider, and thus acts as a seal. As the refrigerant gas leaked from the bottom surface and the upper surface of the turning vane flows into the chamber and has a constant pressure, a plurality of chambers serve as sealing stages, and thus, between the contact surface and the bottom surface of the cylinder and the upper surface of the turning vane. It is to minimize the leakage of refrigerant gas.

In addition, the plurality of chambers of the leakage preventing part is formed in a horizontal direction orthogonal to the linear reciprocating direction to have a condition that can more closely block the leakage of the refrigerant gas.

As described above, the present invention maintains the airtightness by contacting each other in the compression section of the swing vane compressor to prevent leakage, which acts as a seal along linear reciprocation to the contact surface of the linear slider coupled to partition the high pressure side and the low pressure side. As it is provided to minimize the leakage of the refrigerant gas through the portion in contact with the contact surface, it has the effect of minimizing the leakage due to the pressure difference between the high pressure side and the low pressure side to further increase the compression efficiency.

In addition, the respective leakage preventing portions are formed on both side surfaces, the upper surface and the bottom surface of the linear slider, respectively, so that the refrigerant gas leaks from all parts of the inner wall and the inner ring of the linear slider, the cylinder bottom, and the upper surface of the turning vane. It also has an effect that can be minimized.

In addition, the leakage preventing portion formed on the contact surface of the linear slider is formed in the vertical and horizontal directions orthogonal to the linear reciprocating direction of movement, thereby blocking the leakage of refrigerant gas as the plurality of chambers play various stages of sealing. It also has the effect.

Claims (4)

It is coupled to the circular vane of the compression section, and the contact surface is formed on both sides to contact the inner wall of the cylinder and the inner ring, and the upper and lower contact surfaces are formed to contact the lower surface of the cylinder and the upper surface of the turning vane. In the linear slider of the swing vane compressor which partitions to the low pressure side, Each contact surface of the linear slider is provided with a respective leakage preventing portion so as not to leak the compressed gas according to the linear reciprocating motion of the linear slider linear slider of the swing vane compressor having a leakage preventing function. The linear slider of the swing vane compressor according to claim 1, wherein the leakage preventing portions of the contact surfaces formed on both side surfaces of the linear slider are formed in a vertical direction perpendicular to the linear reciprocating motion. The linear slider of the swing vane compressor according to claim 1, wherein the leakage preventing portions of the contact surfaces formed on the upper and lower surfaces of the linear slider are formed in a horizontal direction perpendicular to the linear reciprocating motion. The linear slider of any one of claims 1 to 3, wherein the leakage preventing part has a plurality of chambers recessed from each contact surface in a concave-convex shape.

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