RU2535585C1 - Angular piston compressor bed - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: proposed bed comprises frame (1) with vertical cage (2) arranged above the frame. Said frame and said cage are hollow, their cavities being communicated via through hole (10) made in separation wall (11) separating cage cavity (9) from frame cavity (4). Frame end walls have first and second through coaxial holes (5) and (6). Separation wall has first through channel (12) with inlet located on separation wall surface inside the vertical cage while outlet is located on locating surface of the frame first through hole.

EFFECT: ruled out lubricant inside vertical frame.

11 cl, 4 dwg

Description

Technical field

The claimed invention relates to the field of mechanical engineering, namely to compressor engineering. The inventive bed of a reciprocating angular compressor is intended for combining a crank mechanism with cylinder-piston groups of a compressor and for mounting a reciprocating compressor on a foundation.

The prior art.

Known, for example, the frame of an angular compressor containing a frame with flashlights. A vertical lamp is located on top of the frame, and a horizontal lamp is located on the side of the frame. In this case, the frame and the lamps are hollow and their cavities are interconnected through holes made in the walls separating the cavity of the lamps from the cavity of the frame. Moreover, in the end walls of the frame, the first and second through coaxial holes are made, which have seating surfaces for bearings. At the same time, a crosshead guide is installed in the cavity of each lantern, made in the form of a sleeve (Pospelov G.A., Plastinin P.I., Schwartz A.I., Safin A.Kh. Volumetric compressors. Atlas of structures. M .: Engineering, 1994 city, p. 37, sheet 26 [1].

The disadvantage of the analogue [1] is that the lubricant accumulates in the cavity of the vertical lamp. This happens because part of the lubricant enters from the crosshead surface into the lantern cavity through the gaps between the crosshead guide bushings and the bed. If the crosshead guides are made in the form of segments, then part of the oil enters through the gaps between the segments in the lantern cavity. This leads to loss of lubricant and contamination of the cavity of the vertical lamp.

Disclosure of invention

The technical problem to be solved by the claimed invention is directed is to exclude the accumulation of lubricant in the cavity of the vertical lamp.

The technical result provided by the claimed invention is the elimination of accumulation of lubricant in the cavity of the vertical lamp.

The essence of the invention lies in the fact that the frame of the reciprocating angular compressor comprises a frame with a vertical lamp located on top of the frame. In this case, the frame and the lamp are hollow and their cavities are communicated with each other through a hole made in the dividing wall that separates the cavity of the lamp from the cavity of the frame. Moreover, the first and second through coaxial holes are made in the end walls of the frame. In addition, the first through channel is made in the dividing wall, the entrance of which is located on the surface of the dividing wall in the cavity of the vertical lamp, and the exit is on the landing surface of the first through hole of the frame.

The first through channel preferably has a diameter of 20 mm and is made at an angle of 75 ° to the seating surface of the first through hole.

In the first and second through holes of the frame, the first and second bearing housings, respectively, can be placed. Moreover, each bearing housing contains an annular cavity open from the side of the cavity of the frame.

In the first bearing housing, second and third through channels are preferably formed. The input of the second channel is connected to the output of the first channel, and the output of the second channel is located on the landing surface of the first bearing housing near its end. The input of the third channel is located on the landing surface of the first bearing housing opposite the output of the second channel, and the output of the third channel is located in the annular cavity of the first bearing housing.

In the second bearing housing, a fourth through channel can be made, the input of which is made on the seating surface of the second bearing housing near its end on the outside of the frame, and the outlet is located in the annular cavity of the bearing housing.

The vertical lantern in the frontal section preferably has the shape of a trapezoid.

The frame is mainly cast and has a box shape with a rectangular cross section. On the side of the frame is a hollow horizontal lamp. The cavity of the horizontal lamp is in communication with the cavity of the frame through a hole made in the separation wall that separates the cavity of the lamp from the cavity of the frame.

At the outer end of each lantern, a landing surface and mounting holes for cylinders or remote lanterns are predominantly made.

In the cavity of each lamp, two crosshead guides are predominantly located, which are made in the form of segments with an angle of 88 °.

In the side walls of the lamps, hatches are predominantly made, one on each side in which the covers are fixed. At the same time, a breather is installed on one of the covers.

On the side of the frame opposite to where the horizontal lamp is located, a hatch can be made in which the cover is fixed.

Brief Description of the Drawings

The figure 1 shows a diagram of the frame of a reciprocating angular compressor; figure 2 is a section A-A of figure 1; figure 3 - diagram of the frame of the reciprocating angular compressor according to example 1; figure 4 is a section bb In figure 3.

The implementation of the invention

The frame of the reciprocating angular compressor (figure 1) contains a frame (1), a vertical lamp (2) and a horizontal lamp (3).

The frame (1) serves to support bearings in which the compressor crankshaft rotates, and plays the role of a base plate, with which the compressor rests on the foundation and is mounted on it. The frame (1) is predominantly cast and has a box shape with a rectangular cross section. Inside the frame (1), a cavity (4) is made (Fig. 2). The lower part of the cavity (4) mainly serves as a reservoir for oil. In the end walls of the frame (1), the first (5) and second (6) through coaxial holes are made for installing the crankshaft in the frame. Each of the above through holes (5, 6) has a seating surface for a bearing or bearing housing. Around the first (5) and second (6) through coaxial holes are made mounting holes (7), through which the bearing housing is fixed to the frame (1). To ensure the required rigidity of the frame (1) in its cavity (4), ribbing is performed. On the side of the frame (1), opposite to that where the horizontal lamp (3) is located, a hatch (8) is made in which the cover is fixed. Under the hatch (8) there is a threaded hole for the tap for draining oil from the bed. In the lower part of the end of the frame (1) from the side of the second through hole (6) are made (not shown):

- a hole for the intake filter flange of the lubrication system of the movement mechanism;

- a hole for the sight glass;

- boss under the thermometer rim.

In the lower part of the frame (1), on its lateral sides, paws are made for fixing it in the foundation. Through legs made through mounting holes.

The lanterns (2, 3) are preferably made integral with the frame (1) and are intended to be attached to the bed of cylinders or remote lights, which are designed to remove the cylinders at a certain distance from the bed. The vertical lamp (2) is located on top of the frame (1), and the horizontal lamp (3) is located on the side of the frame (1). At the outer end of each lantern made a landing surface and mounting holes for cylinders or remote lights. The vertical lamp (2) in the frontal section has the shape of a trapezoid. Inside each lantern (2, 3), a cavity (9) is made. The cavity (9) of the lamps (2, 3) is in communication with the cavity (4) of the frame (1) through holes (10) made in the dividing walls (11). Separating walls (11) separate the cavity (9) of the lamps (2, 3) from the cavity of the frame (1). In the dividing wall (11) separating the cavity (9) of the vertical lamp (2) from the cavity (4) of the frame (1), the first through channel (12) is made. The first through channel (12) is designed to drain the lubricant from the cavity (9) of the vertical lamp (2) into the cavity (4) of the frame (1). The entrance of the first through channel (12) is located on the surface of the dividing wall (11) in the cavity (9) of the vertical lamp (2), and the exit is on the landing surface of the first through hole (5) of the frame (1). The first through channel has a diameter of 20 mm and is made at an angle of 75 ° to the seating surface of the first through hole (5).

In the cavity (9) of each lamp (2, 3) there are two crosshead guides (13), which are preferably made in the form of segments with an angle of 88 °. Crosshead guides (13) are designed to absorb normal force from the crosshead and transmit it through the foundation frame.

In the side walls of the lamps (2, 3), hatches (14) are made, one on each side, in which covers (not shown) are fixed. A breather is installed on one of the above covers.

Case Studies

Example 1. In the first and second through holes (5, 6) are placed respectively the first and second bearing housings (15, 16), which serve as bearings for the bearings. Each bearing housing (15, 16) contains an annular cavity (17) open from the side of the cavity (4) of the frame (1). The second and third through channels (18, 19) are made in the first bearing housing (15), and the fourth through channel (20) is made in the second bearing housing (16). The second channel (18) is designed to drain lubricant from the first channel (12) into the cavity (4) of the frame (1). The input of the second channel (18) is connected to the output of the first channel (12), and the output of the second channel (18) is located on the landing surface of the first bearing housing (15) near its end. The third channel (19) is designed to drain lubricant from the seal of the crankshaft cover. The input of the third channel (19) is located on the landing surface of the first bearing housing (15) opposite to the output of the second channel (18), and the output of the third channel (19) is located in the annular cavity (17) of the first bearing housing (15). The fourth channel (20) is designed to drain grease from the seal of the crankshaft cover. The inlet of the fourth through channel (20) is made on the seating surface of the second bearing housing (16) near its end on the outside of the frame (1). The output of the aforementioned channel (20) is located in the annular cavity (17) of the second bearing housing (16).

Example 2. The frame (1) with lanterns (2, 3) is made of gray cast iron, preferably of grade SCh18-36. The dimensions and mass of the bed are as follows (Table 1).

Table 1 The main dimensions and mass of the bed Parameter Name Value Bed length along the longitudinal horizontal axis, mm 1830 Width along the transverse axis - crankshaft axis, mm 900 Height of a bed on a vertical axis, mm 1961 Weight kg 1850 Wall thickness mm eighteen

The implementation of the structural elements of the claimed invention is not limited to the above examples.

Work description

When using the claimed invention, the first bearing housing (15) is installed in the first through hole (5), in which the upper cage of the first bearing is placed. After that, from the end of the frame (1), a crankshaft is inserted into the second through hole (6), on which the rest of the first bearing mounted in the first bearing housing (15) is mounted, and the whole second bearing is fixed. Then, in the second through hole (6), the second bearing housing (16) is fixed, in which the second bearing is placed. After that, through the through holes of the ends of the lamps and hatches (13), the connecting rods and crossheads are mounted in the frame. Then, compressor cylinders or remote lights are fixed to the landing surfaces of the lamps (2, 3) through the mounting holes.

Thus, from the foregoing, it follows that in the inventive frame of the reciprocating angular compressor, the claimed technical result: “elimination of accumulation of lubricant in the cavity of the vertical lamp” is achieved due to the fact that the frame of the reciprocating angular compressor contains a frame with a vertical lamp located on top of the frame. In this case, the frame and the lamp are hollow and their cavities are communicated with each other through a hole made in the dividing wall that separates the cavity of the lamp from the cavity of the frame. Moreover, the first and second through coaxial holes are made in the end walls of the frame. In addition, the first through channel is made in the dividing wall, the entrance of which is located on the surface of the dividing wall in the cavity of the vertical lamp, and the exit is on the landing surface of the first through hole of the frame.

When the motion mechanism is lubricated, the lubricant flows to the crosshead friction pairs - crosshead guides along the oil pipes from the oil reservoir. Crosshead fingers are lubricated by drilling in connecting rods. After that, the used oil drains from the surfaces of the crosshead guides oil back to the tank. If the crosshead guides are made in the form of bushings as in the analogue of [1], a part of the lubricant enters from the crosshead surface into the cavity of the vertical lamp through the gaps between the crosshead guide bushings and the bed. If the crosshead guides are made in the form of segments, then part of the oil enters through the gaps between the segments into the cavity of the vertical lamp. At the same time, in a vertical lamp, unlike a horizontal one, oil cannot drain to the bottom of the bed and accumulates in the cavity of the lamp. Thus, the loss of lubricant occurs, in addition, the internal cavity of the vertical lamp is contaminated. The inventive bed of a reciprocating angular compressor in the dividing wall (11) has a first through channel (12) through which oil flows from the cavity (9) of the vertical lamp (2) into the cavity (4) of the frame (1). This eliminates the accumulation of lubricant in the cavity (9) of the vertical lamp (2).

Industrial applicability.

The inventor made a prototype of the declared bed of a reciprocating angular compressor, the tests of which confirmed the achievement of the technical result.

The inventive bed of a reciprocating angular compressor is implemented using industrially produced devices and materials, can be manufactured at a machine-building enterprise and will find wide application in the field of compressor engineering.

INFORMATION SOURCES.

1. Pospelov G.A., Plastinin P.I., Schwartz A.I., Safin A.Kh. Volumetric compressors. Atlas of designs. M .: Engineering, 1994, p. 37, sheet 26.

Claims (11)

1. The bed of a reciprocating angular compressor, comprising a frame with a vertical lamp located on top of the frame, the frame and the lamp being hollow and their cavities communicated with each other through a hole made in the dividing wall separating the lamp cavity from the cavity of the frame, while in the end walls the frames are made of the first and second through coaxial holes, characterized in that the first through channel is made in the dividing wall, the entrance of which is located on the surface of the dividing wall in the cavity of the vertical background rya, and the exit is on the landing surface of the first through hole of the frame. 2. The bed according to claim 1, characterized in that the first through channel has a diameter of 20 mm and is made at an angle of 75 ° to the seating surface of the first through hole. 3. The bed according to claim 1, characterized in that in the first and second through holes of the frame are respectively the first and second bearing housings, each bearing housing comprising an annular cavity open from the side of the frame cavity. 4. The bed according to claim 3, characterized in that the second and third through channels are made in the first bearing housing, the input of the second channel being connected to the output of the first channel, and the output of the second channel located on the seating surface of the first bearing housing near its end, the input of the third channel is located on the landing surface of the first bearing housing opposite the output of the second channel, and the output of the third channel is located in the annular cavity of the first bearing housing. 5. The bed according to claim 3, characterized in that the second through channel is made in the second bearing housing, the input of which is made on the seating surface of the second bearing housing near its end on the outside of the frame, and the outlet is located in the annular cavity of the bearing housing. 6. The bed according to claim 1, characterized in that the vertical lamp in the frontal section has the shape of a trapezoid. 7. The bed according to claim 1, characterized in that the frame is molded and has a box shape with a rectangular cross section, while on the side of the frame there is a hollow horizontal lamp, while the cavity of the horizontal lamp is in communication with the cavity of the frame with a through hole made in the separation the wall separating the lantern cavity from the frame cavity. 8. The bed according to claim 7, characterized in that on the outer end of each lamp there is a landing surface and mounting holes for cylinders or remote lights. 9. The bed according to claim 7, characterized in that in the cavity of each lamp there are two crosshead guides that are made in the form of segments with an angle of 88 °. 10. The bed according to claim 7, characterized in that hatches are made in the side walls of the lamps, one on each side in which the covers are fixed, and a breather is mounted on one of the covers. 11. Bed according to claim 7, characterized in that on the side of the frame opposite to that where the horizontal lamp is located, a hatch is made in which the lid is fixed.

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