CN2280784Y - Double-cylinder rolling-rotor type compressor - Google Patents

Abstract

The utility model relates to a double-cylinder rolling-rotor type compressor which is improved from the existing single-cylinder rolling-rotor type vehicle air conditioning compressor. The structural characteristic is that a cylinder body is composed of two cylinder bodies which are fixed together, a baffle plate is arranged between the cylinder bodies, the inner cavity of the cylinder body is divided into two working cavities, an eccentric ring and a rolling ring are respectively arranged on a main shaft which is arranged in each working cavity, and two eccentric rings are symmetrically provided with 180 DEG, that is the phase difference of the working cavities is 180 DEG. Thereby, the utility model works steadily with low noise, and can continuously work within the working rotating speed from 580 r/min to 6500r/min. The utility model can be better applied to the use demand of miniature and small-sized vehicles.

Description

The twin-tub rolling rotor type compressor

The utility model relates to the air compressor technical field, more particularly relates to a kind of compressor that is used for car air conditioner.

The present general piston compressor of car air conditioner, the defective that the ubiquity volume is big, structure is complicated, driving power is mostly more than 5 horsepowers, can not satisfy the requirement of little miniature, the compact car of engine power.Though recent domestic a kind of single cylinder rolling rotor type compressor that occurred because of its inner eccentric structure, can't reach dynamically balanced requirement, therefore vibration is very big, and working speed can not surpass 3000r/min, and eccentric wear is serious, and working life is short.

The purpose of this utility model provides that a kind of volume is little, driving power is low, the rolling rotor-type air condition compressor of stable working, to adapt to the needs of miniature and compact car.

For achieving the above object, the utility model is by the following technical solutions: preceding dividing plate and front end housing that it comprises cylinder body, is installed in the rear shell cover of rear end of the cylinder block and is installed in the cylinder body front end, on rear shell cover and preceding dividing plate, main shaft is installed, the end of protruding at front end housing is equipped with coil and belt pulley, in the end of main shaft shaft coupling and sucker is installed.Its structural feature is that cylinder body is to be made of the cylinder body I that links together by screw and cylinder body I I two-part, promptly adopts the twin-tub structure, between two cylinder bodies intermediate clapboard is installed.The eccentric hoop that is installed on the main shaft is arranged respectively in each cylinder body, and two eccentric hoops are 180 ° of symmetric arrangement, and rolling ring is equipped with in the outside of eccentric hoop.Intakeport and relief opening all are housed on each cylinder body, a spring compressor are housed below the cylinder body, spring is housed in the spring compressor, the upper end is housed above the spring holds out against blade below rolling ring.

The utility model has the advantages that: compare with piston compressor, its volume can dwindle 38%, weight descends 16%, number of spare parts can reduce 1/3rd, consumed power is less than 2 horsepowers at full capacity, thereby can adapt to the requirement of installing and using of minicar and compact car well, and can reduce energy consumption and production costs.Compare with the single cylinder rolling rotor type compressor, the utility model is because inner symplex structure, change in torque is mild, stable working, vibrate for a short time, noise is low, but continuous operation in working speed 580-6500r/min scope, and avoided the unavoidable eccentric wear phenomenon of single cylinder structure, the life-span can double than single cylinder engine.The utility model can be realized refrigeration agent from R12 smoothly to R134.Change, and can eliminate the gas that causes because of pressure pulsation when pressurized gas are discharged and hit phenomenon.

Below in conjunction with accompanying drawing and enforcement side, structure of the present utility model and working principle are further described.

Fig. 1 is a transverse sectional view of the present utility model, shows its overall structure;

Fig. 2 is the A-A sectional view among Fig. 1.

In the embodiment that accompanying drawing provides, cylinder body I 5 and cylinder body 6 are fixed together by screw 7, rear end in cylinder body I 5 is fixed with rear shell cover 1 by bolt 27, front end at cylinder body 6 is fixed with the front end housing 10 that front end protrudes by bolt 27, and preceding dividing plate 11 is fixed on the front end of cylinder body 6, O type circle 28 is housed in the groove of rear shell cover 1 and front end housing 10.On rear shell cover 1 and preceding dividing plate 11, main shaft 3 is installed by bearing 2.Be fixed with coil 13 in front end housing 10 ends by screw 12, and by bearing 22 belt pulley 26 be installed, bearing 22 limits it and moves axially by being contained in back-up ring 21 on the front end housing 10.End at main shaft 3 is equipped with shaft coupling 17 by screw 18 and baffle plate 19, and sucker 15 is installed on the shaft coupling 17, and 17 on sucker 15 and shaft coupling are fixed with by rivet 14 and connect reed 16, and main shaft 3 drives shaft couplings 17 by key 20 and rotates.Be sleeved on the spring 25 on the main shaft 3 and do relative movement, finish axial seal by its rotating ring that holds out against 24 and the stationary ring 23 that is fixed in the front end housing 10.Between cylinder body I and cylinder body, be fixed with intermediate clapboard 32, inner chamber of cylinder block is separated into two equal active chambers, have respectively in each active chamber by key 4 and be installed in eccentric hoop 9 on the main shaft 3, two eccentric hoops, 9 symmetric arrangement, making its work phase difference is 180 °, thereby eliminates the unbalanced factor that causes because of off-centre.Rolling ring 8 is equipped with in eccentric hoop 9 outsides, has by spring 31 below the rolling ring 8 to hold out against at its surperficial blade 30, is contained in below the spring 31 by screw thread to be installed in the spring compressor 29 on the cylinder body.Blade 30 is divided into air aspiration cavity and exhaust cavity two-part with each active chamber, on the cylinder body in the air aspiration cavity and the exhaust cavity outside, be separately installed with intakeport 38 and relief opening 34 by bolt 37, have in relief opening 34 inboards by screw 33 to be installed in valve block 36 and banking stop 35 on the cylinder body, on intakeport 38, also have and fill fluorine mouth 39.The junction plane of intakeport and relief opening and cylinder body is by seal ring 40 sealings.

Working principle of the present utility model is: with intakeport 38, relief opening 34 is connected with systematic pipeline during use, system is vacuumized again, and charges into refrigeration agent by filling fluorine mouth 39 then.Motor drives belt pulley 26 by the vee belt and rotates, when coil 13 is not switched on, and belt wheel 26 idle running.When coil electricity, inhale moving sucker 15 and fit with belt wheel 26, rotate thereby drive main shaft 3 by shaft coupling 17, main shaft 3 further drives eccentric hoop 9 and rolling ring 8 and rotates counterclockwise (see figure 2), air aspiration cavity is constantly changed from small to big, and exhaust cavity from large to small constantly.When air aspiration cavity changes from small to big, suck refrigeration working medium from intakeport 38, the exhaust cavity of opposite side when pressure reaches the elastic pressure of valve block 36, backs down valve block 36 from large to small simultaneously, discharges pressurized gas from relief opening, finishes the compression process of refrigeration work medium.Because the work phase difference of two cylinders is 180 °, thereby can reduce vibration effectively, reduce noise.

Claims (1)

1. twin-tub rolling rotor type compressor, comprise cylinder body, be installed in the rear shell cover (1) of rear end of the cylinder block and be installed in the preceding dividing plate (11) and the front end housing (10) of cylinder body front end, on rear shell cover (1) and preceding dividing plate (11), main shaft (3) is installed, in front end housing (10) end coil (13) and belt pulley (26) are installed, shaft coupling (17) and sucker (15) are installed in the end of main shaft (3), it is characterized in that: cylinder body is made of the cylinder body I (5) that links together by screw (7) and cylinder body I I (6) two-part, intermediate clapboard (32) is installed between two cylinder bodies (5) (6), the eccentric hoop (9) that is installed on the main shaft (3) is arranged respectively in each cylinder body, two eccentric hoops (9) are 180 ° of symmetric arrangement, rolling ring (8) is equipped with in the outside of eccentric hoop (9), intakeport (38) and relief opening (34) are installed on cylinder body (5) (6), one spring compressor (29) is housed below the cylinder body (5) (6), spring (31) is housed in the spring compressor (29), holds out against the blade (30) below rolling ring (8) on being equipped with above the spring (31).