CN115853917B - Conical roller bearing play adjusting method for diaphragm compressor - Google Patents
Conical roller bearing play adjusting method for diaphragm compressor Download PDFInfo
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- CN115853917B CN115853917B CN202310193094.8A CN202310193094A CN115853917B CN 115853917 B CN115853917 B CN 115853917B CN 202310193094 A CN202310193094 A CN 202310193094A CN 115853917 B CN115853917 B CN 115853917B
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Abstract
The invention relates to thickness measurement, in particular to a tapered roller bearing clearance adjustment method for a diaphragm compressor, which comprises the steps of (1) installing a pressing plate (2) installing a pressure sensor (3) installing a dial indicator (4) pre-tightening (5) tightly fixing (6) recording a dial indicator value (7) to determine the thickness of a gasket or (1) installing the pressing plate (2) installing the pressure sensor (3) pre-tightening (4) tightly fixing (5) measuring by using a clearance gauge and recording (6) to determine the thickness of the gasket. The structure is extremely simple, and the cost is almost avoided.
Description
Technical Field
The invention relates to thickness measurement, in particular to a conical roller bearing play adjusting method for a diaphragm compressor.
Background
The diaphragm compressor is a positive displacement compressor with a special structure, working oil in an oil cavity of an oil cylinder is pushed by a piston, and after passing through an oil distribution disc, a diaphragm is evenly pushed to reciprocate in a diaphragm cavity formed between a cylinder cover and a curved surface of the oil distribution disc, so that the volume of an air cavity of the air cylinder is changed, and the purpose of compressing and conveying gas is realized under the condition that an air suction valve and an air discharge valve work cooperatively.
In the diaphragm compressor, both ends of a crankshaft are connected with a crankcase through tapered roller bearings. Whether the setting of the conical roller bearing play is correct or not directly determines the service life of the bearing. The Chinese patent publication No. CN103170830A discloses a novel tapered roller bearing play adjusting device and an adjusting method thereof, wherein the novel tapered roller bearing play adjusting device comprises a pressure adjusting system, a measuring system and a dial plate; the pneumatic hydraulic pump in the pressure regulating system is connected with a manual reversing valve through an oil path pipeline, the manual reversing valve is connected with a pressure reducing valve A and a pressure reducing valve B through oil path pipelines respectively, the pressure reducing valve A and the pressure reducing valve B are connected with a shuttle valve through oil path pipelines respectively, and a pressure gauge is arranged on the shuttle valve; and an oil cylinder in the measuring system is connected with the shuttle valve through an oil way pipeline and acts on the gland, and the dial indicator is arranged in a reserved hole of the bearing end cover. The device to be adjusted reads the values of the dial indicators through the low-pressure oil circuit after being adjusted through the high-pressure oil circuit in the pressure adjusting system, and the final required bearing play value can be ensured by adjusting the thickness of the gasket by calculating the average value of the values measured by the two dial indicators; however, this method requires additional valve bank and air compressor, and the cost is high.
Disclosure of Invention
In order to overcome the defects in the prior art, one of the technical schemes adopted by the invention is as follows:
a conical roller bearing play adjusting method for a diaphragm compressor comprises the following steps:
(1) and (3) mounting a pressing plate: a pressing plate is sleeved on the crankshaft outside the crankcase, a pressing plate through hole corresponding to a bearing cover hole formed in the bearing cover is formed in the pressing plate, and a plurality of adjusting bolts penetrate through the pressing plate through hole and the bearing cover Kong Houluo to be connected with the crankcase;
(2) installing a pressure sensor: one end of the 2 pressure sensors is abutted against the outer surface of the bearing cover, the other end is abutted against the inner surface of the pressing plate, and the 2 pressure sensors are centrally symmetrical about the rotation axis of the crankshaft;
(3) and (3) mounting a dial indicator: 2 clearance adjusting holes are formed in the bearing cover and avoid bearing cover holes formed in the bearing cover, the gauge stand of the dial indicator is respectively screwed in the 2 clearance adjusting holes, and the measuring head of the dial indicator is abutted against the abutting surface of the crankcase and the bearing cover; the axis connecting line of the 2 dial indicators is orthogonal to the axis connecting line of the 2 pressure sensors; 2 dial indicators are adjusted to align pointers of the dial indicators with zero graduations of the dial plate;
(4) and (3) pre-tightening: nuts on the plurality of adjusting bolts are rotated forward and/or reversely to drive the pressing plate to pre-press 2 pressure sensors, so that the two pressure sensors are externally connected with a digital display instrument to respectively display X1 and X2 cow force;
(5) and (3) tightening: the crankshaft is slowly rotated, and nuts are adjusted to enable the two pressure sensors to be externally connected with a digital display instrument to respectively and stably display X1+/-0.05X ox force and X2+/-0.05X ox force;
(6) record the values of the dial indicators: observing and recording the values Y1 and Y2 of the two dial indicators;
(7) determining the thickness of a gasket: if the tapered roller bearing play is Z, the thickness of the shim is (y1+y2)/2+Z.
Further, the ratio of the absolute value of the difference between the digital display values of the two pressure sensor external digital display meters to the digital display value of any one of the pressure sensor external digital display meters is less than 5%.
The second technical scheme adopted by the invention is as follows:
a conical roller bearing play adjusting method for a diaphragm compressor comprises the following steps:
(1) and (3) mounting a pressing plate: a pressing plate is sleeved on the crankshaft outside the crankcase, a pressing plate through hole corresponding to a bearing cover hole formed in the bearing cover is formed in the pressing plate, and a plurality of adjusting bolts penetrate through the pressing plate through hole and the bearing cover Kong Houluo to be connected with the crankcase;
(2) installing a pressure sensor: 4 pressure sensors are arranged between the bearing cover and the pressing plate while avoiding the adjusting bolts, one end of each pressure sensor is abutted against the outer surface of the bearing cover, and the other end is abutted against the inner surface of the pressing plate; the 4 pressure sensors are uniformly distributed around the circumference of the bearing cover;
(3) and (3) pre-tightening: nuts on the plurality of adjusting bolts are rotated forward and/or reversely to drive the pressing plate to pre-press 4 pressure sensors, so that the 4 pressure sensors are externally connected with a digital display instrument to respectively display X1 cattle force, X2 cattle force, X3 cattle force and X4 cattle force;
(4) and (3) tightening: the crankshaft is slowly rotated, and nuts are adjusted to enable the 4 pressure sensors to be externally connected with a digital display instrument to stably display X1+/-0.05X flock, X2+/-0.05X flock, X3+/-0.05X flock and X4+/-0.05X flock;
(5) measured with a feeler gauge and recorded: the clearance between the crankcase and the bearing cover is measured by using a feeler gauge according to 6 points uniformly distributed in the circumferential direction of the bearing cover, and the recorded clearance values are M1, M2, M3, M4, M5 and M6 respectively;
(6) determining the thickness of a gasket: if the tapered roller bearing play is Z, the thickness of the shim is (m1+m2+m3+m4+m5+m6)/6+Z.
Further, the ratio of the absolute value of the difference between the digital display values of any two external digital display meters in the 4 pressure sensors to the digital display value of any one of the two external digital display meters is less than 5%.
Compared with the prior art, the method is simple, the clearance adjustment can be conveniently carried out only through the dial indicator or the feeler gauge, and the assembling worker is not required to have higher assembling technology and proficiency and is high in efficiency. The structure is extremely simple, and the cost is almost avoided.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a partial cross-sectional view of fig. 1.
Fig. 3 is a partial enlarged view of fig. 2.
Fig. 4 is another structural schematic of the present invention.
Reference numerals in the drawings: 100. a crankcase; 101. an abutment surface; 200. a crankshaft; 300. a bearing cap; 301. a bearing cap hole; 302. a play adjustment hole; 400. a dial indicator; 401. a gauge stand; 402. measuring head; 500. a pressing plate; 600. adjusting a bolt; 700. a pressure sensor; 800. a feeler gauge.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Embodiment 1, as shown in fig. 1 to 3, a tapered roller bearing play adjustment method for a diaphragm compressor, comprising the steps of:
(1) mounting the pressing plate 500: a pressing plate 500 is sleeved on the crankshaft 200 outside the crankcase 100, 8 pressing plate through holes corresponding to the 8 bearing cover holes 301 formed in the bearing cover 300 are formed in the pressing plate 500, and 8 adjusting bolts 600 penetrate through the pressing plate through holes and the bearing cover holes 301 and are then screwed with the crankcase 100;
(2) mounting a pressure sensor 700: one end of the 2 pressure sensors 700 is abutted against the outer surface of the bearing cap 300, and the other end is abutted against the inner surface of the pressing plate 500, and the 2 pressure sensors 700 are centrosymmetric with respect to the rotation axis of the crankshaft 200; the axis connecting lines of the 2 pressure sensors 700 are parallel to the ground;
(3) installation percentage table 400: in the bearing cap 300, 2 play adjustment holes 302,2 are formed so as to avoid the bearing cap hole 301 formed therein, and the gauge stand 401 of the dial indicator 400 is screwed into the play adjustment holes 302, respectively, so that the gauge head 402 of the dial indicator 400 is abutted against the abutment surface 101 of the crankcase 100 and the bearing cap 300; the axis connection of the 2 dial indicators 400 is orthogonal to the axis connection of the 2 pressure sensors 700; namely, the axis connecting line of 2 dial indicators 400 is vertical to the ground, and 2 dial indicators 400 are adjusted to align with zero graduations of the dial plate;
(4) and (3) pre-tightening: nuts on the 8 adjusting bolts 600 are rotated forward and/or reversely to drive the pressing plate 500 to pre-press 2 pressure sensors 700, so that the two pressure sensors 700 are externally connected with a digital display instrument to respectively display X1 and X2 cow force;
(5) and (3) tightening: the crankshaft 200 is slowly rotated, and nuts are adjusted to enable the two pressure sensors 700 to be externally connected with a digital display instrument to respectively and stably display X1 plus or minus 0.05X ox force and X2 plus or minus 0.05X ox force;
(6) record the values of the percentage table 400: the values Y1 and Y2 of the two dial indicators 400 are observed and recorded;
(7) determining the thickness of a gasket: if the tapered roller bearing play is Z, the thickness of the shim is (y1+y2)/2+Z.
In another preferred embodiment, in step (4), it is ensured that the ratio of the absolute value of the difference between the digital values of the two pressure sensors 700 and the digital value of any one of the pressure sensors 700 is less than 5% during the pre-tightening process. I.e., |x1-x2|)/X1 < 0.05; (|X1-X2|)/X2 < 0.05. This ensures that the play of the tapered roller bearing is uniform at the upper and lower ends.
Embodiment 2, as shown in fig. 4, is a tapered roller bearing play adjustment method for a diaphragm compressor, comprising the steps of:
(1) mounting the pressing plate 500: a pressing plate 500 is sleeved on the crankshaft 200 outside the crankcase 100, 8 pressing plate through holes corresponding to the 8 bearing cover holes 301 formed in the bearing cover 300 are formed in the pressing plate 500, and 8 adjusting bolts 600 penetrate through the pressing plate through holes and the bearing cover holes 301 and are then screwed with the crankcase 100;
(2) mounting a pressure sensor 700: 4 pressure sensors 700 are provided between the bearing cap 300 and the pressing plate 500 while avoiding the adjustment bolts 600, one end of the pressure sensor 700 is abutted against the outer surface of the bearing cap 300, and the other end is abutted against the inner surface of the pressing plate 500; the 4 pressure sensors 700 are uniformly distributed in the circumferential direction of the bearing cap 300;
(3) and (3) pre-tightening: nuts on the 8 adjusting bolts 600 are rotated forwards and/or reversely to drive the pressing plate 500 to pre-press the 4 pressure sensors 700, so that the 4 pressure sensors 700 are externally connected with a digital display instrument to respectively display X1 cattle force, X2 cattle force, X3 cattle force and X4 cattle force;
(4) and (3) tightening: the crankshaft 200 is slowly rotated, and nuts are adjusted to enable the 4 pressure sensors 700 to be externally connected with a digital display instrument to stably display X1+/-0.05X flock, X2+/-0.05X flock, X3+/-0.05X flock and X4+/-0.05X flock;
(5) measured with feeler 800 and recorded: the clearance between the crankcase 100 and the bearing cover 300 is measured according to 6 points uniformly distributed in the circumferential direction of the bearing cover 300 by using the feeler gauge 800, and the recorded clearance values are M1, M2, M3, M4, M5 and M6 respectively;
(6) determining the thickness of a gasket: if the tapered roller bearing play is Z, the thickness of the gasket is:
（M1+M2+M3+M4+M5+M6）/6+Z。
in another preferred embodiment, in the pre-tightening step of step (3), the ratio of the absolute value of the difference between the digital display values of any two external digital display meters in the 4 pressure sensors 700 to the digital display value of any one external digital display meter 700 in the two external digital display meters is less than 5%. I.e., |x1-x2|)/X1 < 0.05; (|X1-X2|)/X2 < 0.05; (|X1-X3|)/X1 < 0.05; (|X1-X3|)/X3 < 0.05; (|X1-X4|)/X1 < 0.05; (|X1-X4|)/X4 < 0.05; (|X2-X3|)/X2 < 0.05; (|X2-X3|)/X3 < 0.05; (|X2-X4|)/X2 < 0.05; (|X2-X4|)/X4 < 0.05.
The present invention is not described in detail in the prior art or common general knowledge in the art.
Claims (4)
1. A conical roller bearing play adjusting method for a diaphragm compressor is characterized by comprising the following steps:
(1) mounting platen (500): a pressing plate (500) is sleeved on the crankshaft (200) outside the crankcase (100), a pressing plate through hole corresponding to a bearing cover hole (301) formed in the bearing cover (300) is formed in the pressing plate (500), and a plurality of adjusting bolts (600) penetrate through the pressing plate through hole and the bearing cover hole (301) and are then screwed with the crankcase (100);
(2) mounting a pressure sensor (700): one end of each of the 2 pressure sensors (700) is abutted against the outer surface of the bearing cover (300), and the other end is abutted against the inner surface of the pressing plate (500), and the 2 pressure sensors (700) are centrally symmetrical about the rotation axis of the crankshaft (200);
(3) installation dial gauge (400): 2 clearance adjustment holes (302) are formed in the bearing cover (300) and avoid bearing cover holes (301) formed in the bearing cover, gauge holders (401) of the dial indicator (400) are respectively screwed in the 2 clearance adjustment holes (302), and a measuring head (402) of the dial indicator (400) is abutted against an abutting surface (101) of the crankcase (100) and the bearing cover (300); the axis connecting line of the 2 dial indicators (400) is orthogonal to the axis connecting line of the 2 pressure sensors (700); 2 dial indicators (400) are adjusted to align the pointers of the dial indicators with zero graduations of the dial plate;
(4) and (3) pre-tightening: nuts on the plurality of adjusting bolts (600) are rotated forward and/or reversely to drive the pressing plate (500) to pre-press 2 pressure sensors (700), so that the two pressure sensors (700) are externally connected with a digital display instrument to respectively display X1 and X2 cow force;
(5) and (3) tightening: the crankshaft (200) is slowly rotated, and nuts are adjusted to enable the two pressure sensors (700) to be externally connected with a digital display instrument to respectively and stably display X1 plus or minus 0.05X ox force and X2 plus or minus 0.05X ox force;
(6) record the values of the dial indicator (400): observing and recording the values Y1 and Y2 of the two dial indicators (400);
(7) determining the thickness of a gasket: if the tapered roller bearing play is Z, the thickness of the shim is (y1+y2)/2+Z.
2. The method for adjusting the play of a tapered roller bearing for a diaphragm compressor according to claim 1, wherein (|x1-x2|)/X1 < 0.05; (|X1-X2|)/X2 < 0.05.
3. A conical roller bearing play adjusting method for a diaphragm compressor is characterized by comprising the following steps:
(1) mounting platen (500): a pressing plate (500) is sleeved on the crankshaft (200) outside the crankcase (100), a pressing plate through hole corresponding to a bearing cover hole (301) formed in the bearing cover (300) is formed in the pressing plate (500), and a plurality of adjusting bolts (600) penetrate through the pressing plate through hole and the bearing cover hole (301) and are then screwed with the crankcase (100);
(2) mounting a pressure sensor (700): 4 pressure sensors (700) are arranged between the bearing cover (300) and the pressing plate (500) avoiding the adjusting bolt (600), one end of each pressure sensor (700) is abutted against the outer surface of the bearing cover (300), and the other end is abutted against the inner surface of the pressing plate (500); the 4 pressure sensors (700) are uniformly distributed in the circumferential direction of the bearing cover (300);
(3) and (3) pre-tightening: nuts on the plurality of adjusting bolts (600) are rotated forward and/or reversely to drive the pressing plate (500) to pre-press the 4 pressure sensors (700), so that the 4 pressure sensors (700) are externally connected with a digital display instrument to respectively display X1 cattle force, X2 cattle force, X3 cattle force and X4 cattle force;
(4) and (3) tightening: the crankshaft (200) is slowly rotated, and nuts are adjusted to enable the 4 pressure sensors (700) to be externally connected with a digital display instrument to stably display X1+/-0.05X ox force, X2+/-0.05X ox force, X3+/-0.05X ox force and X4+/-0.05X ox force;
(5) measured with a feeler gauge (800) and recorded: the clearance between the crank case (100) and the bearing cover (300) is measured by using a clearance gauge (800) according to 6 points uniformly distributed in the circumferential direction of the bearing cover (300), and the recorded clearance values are M1, M2, M3, M4, M5 and M6 respectively;
(6) determining the thickness of a gasket: if the tapered roller bearing play is Z, the thickness of the shim is (m1+m2+m3+m4+m5+m6)/6+Z.
4. A tapered roller bearing play adjustment method for a diaphragm compressor according to claim 3, characterized in that: (|X1-X2|)/X1 < 0.05; (|X1-X2|)/X2 < 0.05; (|X1-X3|)/X1 < 0.05; (|X1-X3|)/X3 < 0.05; (|X1-X4|)/X1 < 0.05; (|X1-X4|)/X4 < 0.05; (|X2-X3|)/X2 < 0.05; (|X2-X3|)/X3 < 0.05; (|X2-X4|)/X2 < 0.05; (|X2-X4|)/X4 < 0.05.
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| CN202310193094.8A CN115853917B (en) | 2023-03-03 | 2023-03-03 | Conical roller bearing play adjusting method for diaphragm compressor |
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| CN202310193094.8A CN115853917B (en) | 2023-03-03 | 2023-03-03 | Conical roller bearing play adjusting method for diaphragm compressor |
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| CN115853917B true CN115853917B (en) | 2023-05-23 |
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