CN211950845U - Structure for preventing oil-free vortex air compressor from rotating disc - Google Patents

Abstract

The utility model relates to a structure for preventing an action disk from rotating of an oil-free vortex air compressor, which comprises an anti-rotation component, an eccentric component, a moving disk and a tray, wherein the anti-rotation component comprises an eccentric part, one end of the eccentric part is rotatably connected with one side of the tray away from the moving disk through a first bearing, one side of the anti-rotation component away from the tray is provided with a fixed frame, the other end of the eccentric part is rotatably connected with the fixed frame through a second bearing, the tray is provided with a first mounting hole, a mounting gap is arranged between the inner wall of the first mounting hole and the outer wall of the first bearing, a groove is arranged in the middle ring of the inner wall of the first mounting hole, an annular ring is embedded in the groove, one side of the annular ring close to the first bearing is tightly attached to the first bearing, a mounting gap is arranged between the inner wall of the first mounting hole and the outer wall of the first bearing, a groove is arranged in, the equipment is more convenient, and has avoided the friction between the metal, has reduced the noise.

Description

Structure for preventing oil-free vortex air compressor from rotating disc

Technical Field

The utility model belongs to the technical field of the vortex air compressor machine and specifically relates to a structure of dish rotation is prevented moving by oilless vortex air compressor machine.

Background

Among the current prevention driving disk rotation structure, application number is "CN 200920200198.2", and the patent name is "an oil-free scroll compressor" discloses a structure of preventing moving disk rotation, including frame, driving disk, fixed plate, main shaft and eccentric shaft, driving disk and fixed plate are installed in the frame, and the compression chamber is constituteed to driving disk and fixed plate, and the main shaft drives the driving disk and is plane motion, and three eccentric shaft plays the limiting displacement of driving disk.

However, the eccentric shaft is very inconvenient in installation, and when the eccentric shaft is installed through the bearing, the tight installation of the bearing often can rub with the tray in the rotating process to generate noise, so that higher requirements are provided for the installation position of the air compressor, and the eccentric shaft cannot be installed in a human living area or a working area so as to avoid the influence of the generated noise on the normal life of people.

Therefore, a structure for preventing the rotation of the movable disk of the oil-free vortex air compressor, which is more convenient to assemble, avoids the friction between metals and reduces the noise, is needed.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a structure for preventing rotation of a scroll plate of an oil-free scroll air compressor, which is more convenient to assemble, avoids friction between metals, and reduces noise.

The utility model provides a structure of oil-free vortex air compressor machine anti-dynamic plate rotation, including preventing the rotation subassembly, eccentric subassembly, driving disk and tray, tray one side is connected to the driving disk, prevent that the rotation subassembly sets up in the tray opposite side, eccentric subassembly is used for driving the tray and is eccentric revolution translation, prevent that the rotation subassembly is used for preventing the tray rotation, prevent that the rotation subassembly includes the eccentric piece, eccentric piece one end deviates from driving disk one side through first bearing rotatable coupling tray, prevent that the rotation subassembly deviates from tray one side and be provided with the mount, the eccentric piece other end passes through second bearing rotatable coupling mount, the rotatory eccentricity of eccentric piece equals the rotatory eccentricity of tray.

The eccentric part comprises a rotating shaft and an eccentric shaft, the eccentric shaft is arranged at the eccentric position of one end of the rotating shaft, a first mounting hole is formed in the tray corresponding to the eccentric shaft, the eccentric shaft is mounted in the first mounting hole through a first bearing, a second mounting hole is formed in the fixing frame corresponding to the rotating shaft, and the rotating shaft is mounted in the second mounting hole through a second bearing.

A mounting gap is formed between the inner wall of the first mounting hole and the outer wall of the first bearing, a groove is formed in the inner wall of the first mounting hole in a middle ring mode, an annular ring is embedded in the groove, and one side, close to the first bearing, of the annular ring is tightly attached to the first bearing.

Preferably, the eccentric part has a plurality of, and the eccentric part sets up in the tray and deviates from one side of driving disk.

Preferably, there are three eccentric parts, and the eccentric parts are circumferentially arrayed on the side of the tray, which faces away from the movable plate.

Preferably, eccentric subassembly includes drive shaft and eccentric round pin, and the drive shaft sets up in the one side that the tray deviates from the driving disk, and the eccentric round pin sets up between drive shaft and tray, and eccentric round pin one end is connected the drive shaft and is close to tray one end, and the tray sets up the third mounting hole towards the corresponding eccentric round pin in drive shaft one side, and the eccentric round pin other end passes through the third bearing and installs in the third mounting hole.

Preferably, the width of the mounting gap is twenty filaments.

Preferably, the groove is arranged on the inner side wall of the first mounting hole at a position which is one third away from the bottom of the first mounting hole.

Preferably, the first bearing, the second bearing and the third bearing are all angular contact ball bearings.

Preferably, a balance weight is arranged on one side of the driving shaft and is used for balancing unbalanced inertia force caused by the rotation of the tray and the movable disc driven by the driving shaft.

Above-mentioned structure of oil-free vortex air compressor machine anti-dynamic disk rotation, through be provided with the installation clearance between first mounting hole inner wall and the first bearing lateral wall, establish the recess in first mounting hole inner wall zhonghuan, inlay in the recess and establish the annular ring, realized the not hard up installation of first bearing and first mounting hole, it is more convenient to assemble, and has avoided the friction between the metal, has reduced the noise.

Drawings

FIG. 1 is a structural diagram of the structure for preventing the rotation of the disk of the oil-free vortex air compressor of the present invention;

FIG. 2 is an explosion structure diagram of the structure of the oil-free vortex air compressor for preventing the rotation of the disc;

FIG. 3 is another structural diagram of the structure for preventing the rotation of the disk of the oil-free vortex air compressor of the present invention;

FIG. 4 is another structural diagram of the structure for preventing the rotation of the disk of the oil-free vortex air compressor of the present invention;

fig. 5 is a sectional view along a-a of fig. 4.

Detailed Description

In order to make the purpose, technical scheme and advantage of the utility model more clearly understand, it is right below combining the attached drawing and embodiment, the utility model discloses the structure of oilless vortex air compressor machine prevention driving disk rotation carries out further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Please refer to fig. 1-2, the utility model discloses there is not structure of oil vortex air compressor machine prevention driving disk rotation, including driving disk 300, quiet dish, prevent the rotation subassembly, tray 200 and eccentric subassembly, eccentric subassembly includes drive shaft 100 and eccentric pin 410, quiet dish sets up in driving disk 300 one side, quiet dish and driving disk 300 are provided with the vortex line of involute shape relatively, the vortex line shape size of quiet dish and driving disk 300 is identical completely, and both phase differences of driving disk 300 and quiet dish are 180, tray 200 sets up in driving disk 300 opposite side, drive shaft 100 sets up in one side that tray 200 deviates from driving disk 300, drive shaft 100 connects tray 200 through eccentric pin 410 and faces drive shaft 100 one side, drive shaft 100 is used for driving tray 200 to carry out eccentric revolution translation.

Specifically, the movable plate 300 may be integrally formed with the tray 200, and of course, the movable plate 300 may also be fixedly connected to the tray 200 by a fastener.

Prevent the rotation subassembly and be used for preventing the rotation of tray 200, prevent that the rotation subassembly includes eccentric part 610, and eccentric part 610 one end deviates from driving disk 300 one side through first bearing 620 rotatable coupling tray 200, prevents that the rotation subassembly deviates from tray 200 one side and is provided with the mount, and the eccentric part 610 other end passes through second bearing 640 rotatable coupling mount.

The eccentric member 610 performs eccentric rotation with the revolution translation of the tray 200, and the rotation eccentricity of the eccentric member 610 is equal to the rotation eccentricity of the tray 200.

Specifically, the fixing frame is fixedly arranged on the machine body.

Specifically, the balance weight 500 is provided on the side of the driving shaft 100. The balance weight 500 serves to balance unbalanced inertial force caused by the rotation of the tray 200 and the movable disk 300 driven by the driving shaft 100.

The eccentric part used in the structure is a machined part, no special requirements are required for materials, the general No. 45 steel can meet the use requirements, the machining is simple, and the cost is lower.

During practical use, the quiet dish is fixed on the organism, vortex line outside opening part is air inlet 330, quiet dish center sets up the gas vent, movable disk 300 is inserted and is located in the quiet dish, make and formed a plurality of crescent air cavities between movable disk 300 and the quiet dish, these air cavities are equivalent to piston compressor's cylinder, crescent air cavity diminishes to the middle part from the periphery gradually, in compression process, movable disk 300 does the translation of revolving in the quiet dish, make crescent air cavity drive gaseous continuous moving to the center, seal and form new crescent air cavity by the vortex line when gaseous further entering from air inlet 330, make the vortex air compressor machine can incessant compress gas to quiet dish middle part, a plurality of crescent air cavities have represented a plurality of states in the gas compression process.

When the movable disk 300 does revolution translation around the static disk, the eccentric rotation of the same eccentricity is simultaneously done to the eccentric part 610, because at the compressor during operation, the movable disk 300 receives the effect of gas axial force, radial force and tangential force etc. for the rotation moment has appeared to the power that acts on the movable disk 300, make the movable disk 300 have the trend of rotation, the tangential force that the movable disk 300 received this moment can be balanced by the mount of connecting eccentric part 610, make the movable disk 300 not normally rotate.

Specifically, the fastener is a fastening structure such as a screw.

Referring to fig. 2, further, the eccentric member 610 includes a rotation shaft and an eccentric shaft, the eccentric shaft is disposed at an eccentric position of one end of the rotation shaft, a first mounting hole 630 is formed in the tray 200 corresponding to the eccentric shaft, the eccentric shaft is mounted in the first mounting hole 630 through a first bearing 620, a second mounting hole is formed in the fixing frame corresponding to the rotation shaft, and the rotation shaft is mounted in the second mounting hole through a second bearing 640.

Specifically, there are several eccentric members 610, and the eccentric members 610 are disposed on a side of the tray 200 facing away from the movable plate 300.

Referring to fig. 1, preferably, there are three eccentric members 610, and the eccentric members 610 are circumferentially arrayed on a side of the tray 200 facing away from the movable plate 300.

After having carried out the abundant experiment of movable disk 300 stability and eccentric member 610 number collocation scheme, the possibility that accords with a large amount of applications has been drawn most when eccentric member 610 is only three, when eccentric member 610 is more than three, the cost can further increase, nevertheless movable disk 300 stability can not obtain corresponding promotion range, when eccentric member 610 is less than three, the cost has descended, however movable disk 300 stability is decline by a wide margin, and when eccentric member 610 is only three, three eccentric member 610 circumference array just forms three angles of triangle-shaped on tray 200, make movable disk 300 at every point all two liang of supports, tray 200 stability at this moment is higher.

Referring to fig. 2 to 5, specifically, the eccentric pin 410 is disposed between the driving shaft 100 and the tray 200, one end of the eccentric pin 410 is connected to one end of the driving shaft 100 close to the tray 200, a third mounting hole is disposed on one side of the tray 200 facing the driving shaft 100 corresponding to the eccentric pin 410, and the other end of the eccentric pin 410 is mounted in the third mounting hole through a third bearing 420.

Of course, in actual installation work, as long as the rotation eccentricity of the tray 200 is ensured to provide the movable disk 300 to do eccentric revolution translation in the static disk, so that the matching between the movable disk 300 and the static disk can ensure the normal operation of the air compressor, and three installation modes are mainly provided:

1) one end of the eccentric pin 410 is connected with the eccentric position of the driving shaft 100, and the other end of the eccentric pin 410 is connected with the center of the circle of the tray 200, so that the rotating eccentric amount of the tray 200 just can enable the air compressor to normally operate;

2) one end of the eccentric pin 410 is connected with the rotation center of the driving shaft 100, and the other end of the eccentric pin 410 is connected with the eccentric position of the tray 200, so that the rotation eccentric amount of the tray 200 just can enable the air compressor to normally operate;

3) one end of the eccentric pin 410 is connected with the eccentric position of the driving shaft 100, the other end of the eccentric pin 410 is connected with the eccentric position of the tray 200, and the rotating eccentric amount of the tray 200 just enables the air compressor to normally operate by combining the distance from the eccentric pin 410 to the rotating center of the driving shaft 100 and the distance from the eccentric pin 410 to the circle center of the tray 200.

Further, the first bearing 620, the second bearing 640, and the third bearing 420 are all angular contact ball bearings.

Referring to fig. 5, further, a mounting gap is provided between an inner side wall of the first mounting hole 630 and an outer side wall of the first bearing 620, a groove 650 is annularly formed in the inner wall of the first mounting hole 630, an annular ring is embedded in the groove 650, and one side of the annular ring, which is close to the first bearing 620, is tightly attached to the first bearing 620.

Preferably, the width of the mounting gap is twenty filaments.

The filaments are units of length, with one filament being equal to 0.01 mm.

The mounting gap is formed between the inner side wall of the first mounting hole 630 and the outer side wall of the first bearing 620, and loose mounting is carried out, so that the first bearing 620 is more convenient in the mounting process, however, due to loose mounting, if the mounting gap is too large, abnormal sound exists in the equipment running process, if the mounting gap is too small, a clamping stagnation phenomenon can occur in the equipment running process, and higher machining precision is also required, repeated testing verifies that the mounting gap between the first mounting hole 630 and the first bearing 620 is twenty-thread, which is most suitable for twenty-thread, and the precision almost has no precision requirement on machining, and the machining difficulty is reduced; the mounting clearance is compensated for by providing an annular ring in the recess 650 such that the annular ring abuts the first bearing 620 on a side thereof adjacent the first bearing 620.

Referring to fig. 5, preferably, the groove 650 is formed on the inner sidewall of the first mounting hole 630 at a position spaced apart from the bottom one-third of the first mounting hole 630.

Through test verification repeatedly, recess 650 sets up and is the optimal selection on the first mounting hole 630 inside wall that corresponds apart from first bearing 620 bottom third position department, if this position crosses low or too high all can lead to the bearing swing excessively, can not play the buffering shock attenuation, compensate the effect in clearance, through so setting up, the metal friction between first bearing 620 and the first mounting hole 630 has been reduced, the air compressor machine is at the moving in-process, can be more steady, the noise is lower, numerous experimental results that obtain are surveyed repeatedly through the decibel appearance show, compare and play traditional rotation-preventing structure, adopt the utility model discloses five to eight decibels are expected to hang down to the noise of the air compressor machine of structure.

This use novel theory of operation: in the installation process, because there is the installation clearance between first mounting hole 630 and the first bearing 620, so can be very convenient when installing first bearing 620, be provided with the embedded annular ring in recess 650 between first bearing 620 and first mounting hole 630 in addition, rotate and then with the friction of first mounting hole 630 inner wall in having avoided first bearing 620 to use, produce great noise.

Through a lot of experiments, the mounting gap is preferably twenty wires, and the groove 650 is preferably disposed on the inner sidewall of the corresponding first mounting hole 630 at a position one-third away from the bottom of the first bearing 620.

In the using process, the driving shaft 100 is driven by the power source to rotate and drives the tray 200 and the movable disc 300 to do revolution translation with a certain eccentric amount through the eccentric pin 410, at this time, the gas continuously enters the gas inlet 330 from the opening at the outer side of the vortex line, because the movable disc 300 does periodic revolution translation, the crescent-shaped cavities can continuously receive the newly entered gas and are pushed to move towards the center of the stationary disc under the revolution translation of the movable disc 300, the volume of the crescent-shaped gas cavities is continuously reduced in the moving process, so that the gas is continuously compressed, in the gas compression process, the gas pressure on the gas cavity wall between the adjacent crescent-shaped gas cavities forms a certain gas pressure difference, and further forms tangential force to the movable disc 300, so that the movable disc 300 has the tendency of rotation, the eccentric piece arranged on the tray 200 can perform eccentric rotation with the same eccentric amount along with the translation of the tray 200, because the eccentric part is installed on the fixed frame, when the movable disc 300 drives the tray 200 to rotate, the tray will be clamped by the eccentric part and cannot rotate, and the accurate eccentric revolution translation of the movable disc 300 is ensured.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description in any form, and although the present invention has been disclosed with reference to the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make modifications or changes equivalent to the equivalent embodiment of the above embodiments without departing from the scope of the present invention.

Claims (8)

1. The utility model provides a structure of dish rotation is prevented moving by oil-free vortex air compressor machine which characterized in that: the anti-rotation tray comprises an anti-rotation assembly, an eccentric assembly, a movable tray (300) and a tray (200), wherein the movable tray (300) is connected with one side of the tray (200), the anti-rotation assembly is arranged on the other side of the tray (200), the eccentric assembly is used for driving the tray (200) to perform eccentric revolution translation, the anti-rotation assembly is used for preventing the tray (200) from rotating, the anti-rotation assembly comprises an eccentric part (610), one end of the eccentric part (610) is rotatably connected with one side, away from the movable tray (300), of the tray (200) through a first bearing (620), a fixing frame is arranged on one side, away from the tray (200), of the anti-rotation assembly, the other end of the eccentric part (610) is rotatably connected with the fixing frame through a second bearing (640), and the rotating eccentricity of the eccentric part (610) is equal to the rotating eccentricity of the tray (200);

the eccentric part (610) comprises a rotating shaft and an eccentric shaft, the eccentric shaft is arranged at one end of the rotating shaft in an eccentric position, a first mounting hole (630) is formed in the tray (200) corresponding to the eccentric shaft, the eccentric shaft is mounted in the first mounting hole (630) through a first bearing (620), a second mounting hole is formed in the fixed frame corresponding to the rotating shaft, and the rotating shaft is mounted in the second mounting hole through a second bearing (640);

be provided with the installation clearance between first mounting hole (630) inside wall and first bearing (620) lateral wall, set up recess (650) in first mounting hole (630) inner wall zhonghuan, it is equipped with the annular ring to inlay in recess (650), the annular ring is close to first bearing (620) one side and is closely laminated with first bearing (620).

2. The structure for preventing the spinning of the disk of the oil-free scroll air compressor as claimed in claim 1, wherein: the number of the eccentric parts (610) is several, and the eccentric parts (610) are arranged on one side of the tray (200) departing from the movable disc (300).

3. The structure for preventing the spinning of the disk of the oil-free scroll air compressor as claimed in claim 2, wherein: the number of the eccentric parts (610) is three, and the eccentric parts (610) are circumferentially arrayed on one side of the tray (200) which is far away from the movable plate (300).

4. The structure for preventing the spinning of the disk of an oil-free scroll air compressor as claimed in claim 3, wherein: eccentric subassembly includes drive shaft (100) and eccentric round pin (410), drive shaft (100) set up in tray (200) deviates from one side of driving disk (300), the eccentric round pin set up in the drive shaft with between the tray, eccentric round pin (410) one end is connected drive shaft (100) are close to tray (200) one end, tray (200) face drive shaft (100) one side corresponds eccentric round pin (410) sets up the third mounting hole, the eccentric round pin (410) other end pass through third bearing (420) install in the third mounting hole.

5. The structure for preventing the spinning of the disk of the oil-free scroll air compressor as claimed in claim 1, wherein: the width of the mounting gap is twenty filaments.

6. The structure for preventing the spinning of the disk of the oil-free scroll air compressor as claimed in claim 5, wherein: the groove (650) is provided on an inner side wall of the first mounting hole (630) at a position spaced apart from a bottom one-third of the first mounting hole (630).

7. The structure for preventing the spinning of the disk of the oil-free scroll air compressor as claimed in claim 4, wherein: the first bearing (620), the second bearing (640) and the third bearing (420) are all angular contact ball bearings.

8. The structure for preventing the spinning of the disk of the oil-free scroll air compressor as claimed in claim 4, wherein: a balance weight (500) is arranged on one side of the driving shaft (100), and the balance weight (500) is used for balancing unbalanced inertial force caused by the rotation of the tray (200) and the movable disc (300) driven by the driving shaft (100).

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