CN203906297U - Horizontal type and rotary type compressor - Google Patents

Abstract

The utility model discloses a horizontal type and rotary type compressor. The horizontal type and rotary type compressor comprises a housing, a compressing mechanism, a crankshaft, first one-way control devices and second one-way control devices, wherein the compressing mechanism is arranged inside the housing; the compressing mechanism comprises an air cylinder component, a main bearing, an auxiliary bearing, a piston and a slip sheet; a slip sheet groove is formed in the air cylinder component; the crankshaft penetrates through the compressing mechanism; the crankshaft comprises a main shaft section, an eccentric shaft and an auxiliary shaft section; the eccentric shaft section is provided with eccentric parts; a main shaft spiral oil groove, an eccentric spiral oil groove and an auxiliary shaft spiral oil groove which are communicated with the slip sheet groove are respectively formed in one of the main shaft section and a main bearing, one of the eccentric parts and the piston and one of the auxiliary shaft section and the auxiliary bearing; the first one-way control devices are arranged at the tail part of the slip sheet groove; the second one-way control devices are arranged on the main bearing and the auxiliary bearing respectively. According to the horizontal type and rotary type compressor provided by the utility model, the flow of the lubricant between the crankshaft and the compressing mechanism is ensured, so that the abrasion between the crankshaft and the compressing mechanism is avoided.

Description

Horizontal rotary compressor

Technical field

The utility model relates to art of refrigeration units, especially relates to a kind of horizontal rotary compressor.

Background technique

In correlation technique, point out, because horizontal rotary compressor is guided to oil in central hole of the crankshaft by oil pipe, then by oil, the side direction oil outlet from bent axle throws away by centrifugal force, lubricated major-minor bearing and eccentric part, because needs process central hole of the crankshaft, thereby reduced the rigidity of bent axle.In addition, because crankshaft center hole site is high, fuel head is had to requirement, and when fuel head is higher, easily occur that rotor stirs oily problem, and horizontal compressor is in the past lubricated need to carry out pressure reduction design in compressor inside, with this, controls pasta and guarantee that the pump housing is lubricated.

Model utility content

The utility model is intended at least solve one of technical problem existing in prior art.For this reason, an object of the present utility model is to propose a kind of horizontal rotary compressor, and described horizontal rotary compressor does not need to consider that pasta changes the impact on fuel feeding, has simplified the oil circuit design of horizontal rotary compressor, improve the rigidity of bent axle, and avoided rotor to stir oily problem.

According to horizontal rotary compressor of the present utility model, comprising: housing, has oil sump in described housing, compressing mechanism, described compressing mechanism is located in described housing, described compressing mechanism comprises cylinder assembly, main bearing, supplementary bearing, piston and slide plate, described main bearing and described supplementary bearing are located at respectively the both sides of described cylinder assembly and limit compression chamber with described cylinder assembly, described piston can roll along the inwall of described compression chamber, on described cylinder assembly, be formed with vane slot, described slide plate is located in described vane slot movably, bent axle, described bent axle runs through described compressing mechanism, described bent axle comprises successively connected main shaft section, eccentric shaft part and countershaft section, described eccentric shaft part has eccentric part, wherein said piston sleeve is located on described eccentric part, in one of them in described main shaft section and described main bearing, be formed with main shaft helical oil groove, in one of them in described eccentric part and described piston, be formed with eccentric helical oil groove, in one of them in described countershaft section and described supplementary bearing, be formed with countershaft helical oil groove, described main shaft helical oil groove, described eccentric helical oil groove, described countershaft helical oil groove is all communicated with described vane slot, the first unidirectional control device, described the first unidirectional control device is located at the afterbody of described vane slot, and described the first unidirectional control device is arranged to allow the lubricant oil uniaxially in described oil sump to enter in described vane slot, and second unidirectional control device, described the second unidirectional control device is located at respectively on described main bearing and described supplementary bearing, and described the second unidirectional control device is arranged to allow the lubricant oil uniaxially in described vane slot to enter in described main shaft helical oil groove, described eccentric helical oil groove and described countershaft helical oil groove.

According to horizontal rotary compressor of the present utility model, by the afterbody at vane slot, the first unidirectional control device is set, and the second unidirectional control device is set respectively on main bearing and supplementary bearing, lubricant oil in oil sump can enter in vane slot and supply with fully main shaft helical oil groove by uniaxially, eccentric helical oil groove and countershaft helical oil groove, thereby guaranteed lubricant oil flowing between bent axle and compressing mechanism surface of contact, the wearing and tearing between bent axle and compressing mechanism have been avoided, extended the working life of horizontal rotary compressor, and reduced noise, simultaneously, owing to the first unidirectional control device being arranged on to the bottom of cylinder, the power of application sliding vane pump, less oil sealing amount, lower pasta, just can guarantee the lubricated of oil circuit, do not need to consider that pasta changes the impact on fuel feeding, simplified the oil circuit design of horizontal rotary compressor.In addition, owing to not needing machining center hole on bent axle, thereby improved the rigidity of bent axle.

Alternatively, described the first unidirectional control device is arranged in corresponding described slide plate and opens between moving period to the direction of the spin axis near described bent axle, and the described slide plate in correspondence is closed between moving period to the direction of the spin axis away from described bent axle, described the second unidirectional control device is arranged in corresponding described slide plate and closes between moving period to the direction of the spin axis near described bent axle, and between moving period, opens to the direction of the spin axis away from described bent axle at the described slide plate of correspondence.

Particularly, described the first unidirectional control device comprises: valve body, on described valve body, be formed with the first valve opening and the second valve opening, described the first valve opening is formed on a side of the described slide plate of vicinity of described valve body, and described second valve hole is formed on the side away from described slide plate of described valve body; And valve block, described valve block is located at movably in described valve body between open position and closed position, on described valve block, be formed with intercommunicating pore, described in when described valve block is positioned at described open position, intercommunicating pore is communicated with described the first valve opening and described the second valve opening so that the lubricant oil of described oil sump enters described vane slot, when described valve block is positioned at described closed position described in valve block will described the first valve opening and described the second valve opening partition.

Further, described the first valve opening and described intercommunicating pore overlap in the small part that is projected to being parallel in the reference plane of described valve block, and described the second valve opening and the projection of described intercommunicating pore in described reference plane are spaced apart from each other.

Alternatively, described the first valve opening and described the second valve opening coaxially arrange, and the cross-section area of described the first valve opening is greater than the cross-section area of described the second valve opening, and described intercommunicating pore is that a plurality of and described a plurality of intercommunicating pores are along the circumferential spaced apart distribution of described the second valve opening.

Alternatively, described the second unidirectional control device is identical with the structure of described the first unidirectional control device.

Alternatively, described the first unidirectional control device is located at described cylinder inner bottom part and is positioned at and with vertical basal plane, to both sides, turns over respectively the formed sector region of predetermined angle, described predetermined angle is 30 °, wherein said vertical basal plane is the vertical plane of the spin axis by described bent axle, and the fuel head of described oil sump is higher than more than described the first unidirectional control device 3mm.

Alternatively, at least one in described main bearing, described supplementary bearing, be formed with draining hole, described draining hole is communicated with corresponding described helical oil groove.

Further, described in each, draining hole comprises the first draining hole and the second draining hole communicating with each other, and described the first draining hole is positioned at the inner side in described the second draining hole, and the cross-section area in wherein said the first draining hole is less than the cross-section area in the second draining hole.

Further, described horizontal rotary compressor further comprises: mounting blocks, and described mounting blocks is located at least one in described main bearing and described supplementary bearing, and wherein said the second unidirectional control device is located on described mounting blocks.

Alternatively, described cylinder assembly comprises two cylinders, is equipped with described the first unidirectional control device described in each on cylinder.

Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.

Accompanying drawing explanation

Above-mentioned and/or additional aspect of the present utility model and advantage accompanying drawing below combination obviously and is easily understood becoming embodiment's description, wherein:

Fig. 1 is according to the sectional drawing of the utility model embodiment's horizontal rotary compressor;

Fig. 2 a is the sectional drawing of the first unidirectional control device shown in Fig. 1 when closed position;

Fig. 2 b is the sectional drawing of the first unidirectional control device shown in Fig. 1 when open position;

Fig. 2 c is the plan view in Fig. 2 a and Fig. 2 b;

Fig. 3 a is according to the schematic diagram of the utility model embodiment's bearing;

Fig. 3 b is according to the schematic diagram of another embodiment's of the utility model bearing;

Fig. 4 a is according to the sectional drawing of an embodiment's of the utility model mounting blocks;

Fig. 4 b is according to the sectional drawing of another embodiment's of the utility model mounting blocks;

Fig. 5 is according to the sectional drawing of another embodiment's of the utility model horizontal rotary compressor, wherein shows two cylinders.

Reference character:

100: horizontal rotary compressor;

1: housing; 11: oil sump;

21: cylinder; 211: vane slot; 22: main bearing; 221: oilhole;

222: sealing plug; 223: mounting hole;

224: draining hole; 2241: the first draining holes; 2242: the second draining holes;

23: supplementary bearing; 24: piston; 25: slide plate; 26: dividing plate;

31: main shaft section; 311: main shaft helical oil groove;

32: eccentric part; 321: eccentric helical oil groove; 322: the first shoe cream rooms; 323: the second shoe cream rooms;

33: countershaft section; 331: countershaft helical oil groove;

4: the first unidirectional control devices; 41: valve body; 411: valve gap; 4111: the first valve openings;

412: valve seat; 4121: the second valve openings; 413: valve pocket; 42: valve block; 421: intercommunicating pore;

5: the second unidirectional control devices; 6: spring; 7: rotor;

8: mounting blocks; 81: auxiliary oilhole.

Embodiment

Describe embodiment of the present utility model below in detail, described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment who is described with reference to the drawings, be exemplary, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.

In description of the present utility model, it will be appreciated that, term " " center ", " length ", " thickness ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " axially ", " radially ", orientation or the position relationship of indications such as " circumferentially " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.

In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, except as otherwise noted, the implication of " a plurality of " is two or more.

In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.

Below with reference to Fig. 1-Fig. 5, describe according to the utility model embodiment's horizontal rotary compressor 100, horizontal rotary compressor 100 can be single-cylinder horizontal rotary compressor, as shown in Figure 1.Certainly, according to the utility model embodiment's horizontal rotary compressor 100, can be also multi-cylinder horizontal rotary compressor, double-cylinder horizontal rotary compressor for example, as shown in Figure 5.Be appreciated that according to the type of horizontal rotary compressor 100 of the present utility model and can specifically select according to actual requirement, the utility model is not made particular determination to this.

As shown in Figure 1 and Figure 5, according to the utility model embodiment's horizontal rotary compressor 100, comprise housing 1, compressing mechanism, bent axle, the first unidirectional control device 4 and the second unidirectional control device 5.

With reference to Fig. 1 and Fig. 5, housing 1 horizontal arrangement, the central axis level of housing 1 now, the bottom in housing 1 has oil sump 11, has the lubricant oil that is suitable for the compressing mechanism in lubricated housing 1 in oil sump 11.Certainly, housing 1 can also be in tilted layout (scheming not shown), and for example, when attachment face is inclined relative to horizontal, housing 1 can be inclined relative to horizontal and be arranged on attachment face, now the central axis of housing 1 and attachment face keeping parallelism roughly.

Compressing mechanism is located in housing 1, as shown in Figure 1 and Figure 5, compressing mechanism horizontal arrangement and be positioned at the left side of housing 1, the right side in housing 1 is provided with motor, and motor is connected with compressing mechanism, and drive compression mechanism compression refrigerant.

Particularly, compressing mechanism comprises cylinder assembly, main bearing 22, supplementary bearing 23, piston 24 and slide plate 25, with reference to Fig. 1, when horizontal rotary compressor 100 is single-cylinder horizontal rotary compressor, cylinder assembly only comprises a cylinder 21, main bearing 22 and supplementary bearing 23 are located at respectively the left and right sides of this cylinder 21, and main bearing 22, supplementary bearing 23 limits compression chamber with this cylinder 21, piston 24 can roll along the inwall of compression chamber, on this cylinder 21, be formed with vane slot 211, vane slot 211 can and be communicated with compression chamber along the radially extension of cylinder 21, slide plate 25 is located in vane slot 211 movably, and the head of slide plate 25 (i.e. the one end at contiguous compression chamber center) only supports mutually with the periphery wall of piston 24.Wherein, slide plate 25 can be located in vane slot 211 movably by spring 6.

Bent axle horizontal arrangement and run through compressing mechanism along left and right directions, bent axle comprises successively connected main shaft section 31, eccentric shaft part and countershaft section 33, as shown in Figure 1, main shaft section 31 is radially corresponding with main bearing 22, countershaft section 33 is radially corresponding with supplementary bearing 23, that is to say, main bearing 22 is set in the main shaft section 31 of bent axle, supplementary bearing 23 is set in the countershaft section 33 of bent axle, and eccentric shaft section is positioned between main shaft section 31 and countershaft section 33.

Further, with reference to Fig. 1, eccentric shaft part has eccentric part 32, eccentric part 32 is roughly formed on the middle part of eccentric shaft part, eccentric part 32 is all spaced apart on left and right directions with main shaft section 31 and countershaft section 33, and wherein piston 24 is set on eccentric part 32, when bent axle drives rotation by motor, can drive the spin axis of the eccentric part 32 flexing axles on it to rotate, thereby drive piston 24 eccentric motion in compression chamber.

In one of them in main shaft section 31 and main bearing 22, be formed with main shaft helical oil groove 311, that is to say, main shaft helical oil groove 311 can be formed on the periphery wall of main shaft section 31, also can be formed on the inner circle wall of main bearing 22, in one of them in eccentric part 32 and piston 24, be formed with eccentric helical oil groove 321, that is to say, eccentric helical oil groove 321 can be formed on the periphery wall of eccentric part 32, also can be formed on the inner circle wall of piston 24, in one of them in countershaft section 33 and supplementary bearing 23, be formed with countershaft helical oil groove 331, that is to say, countershaft helical oil groove 331 can be formed on the periphery wall of countershaft section 33, also can be formed on the inner circle wall of supplementary bearing 23.Main shaft helical oil groove 311, eccentric helical oil groove 321, countershaft helical oil groove 331 are all communicated with vane slot 211.

Particularly, as shown in Figure 1, main shaft helical oil groove 311, eccentric helical oil groove 321, countershaft helical oil groove 331 are processed respectively in main shaft section 31 at bent axle, eccentric part 32, countershaft section 33, and main shaft helical oil groove 311, eccentric helical oil groove 321, countershaft helical oil groove 331 can be respectively the groove extending along the axial screw of bent axle.The rotation direction that is appreciated that each helical oil groove can be determined according to the sense of rotation of actual crank, to make better lubricant oil flow in corresponding helical oil groove.Certainly, main shaft helical oil groove 311, eccentric helical oil groove 321, countershaft helical oil groove 331 can also be processed respectively on main bearing 22, piston 24, supplementary bearing 23 and (scheme not shown).

Wherein, main shaft helical oil groove 311, eccentric helical oil groove 321, countershaft helical oil groove 331 bent axle axially on length can be according to the structure of actual compressing mechanism and adaptive change, for example, in the example of Fig. 1, one end of the contiguous eccentric part 32 of main shaft helical oil groove 311 (for example, left end in Fig. 1) run through the corresponding end-faces of main shaft section 31, and the other end (for example, right-hand member in Fig. 1) extend to the position corresponding to the corresponding end-faces with main bearing 22 of main shaft section 31, eccentric helical oil groove 321, left side and the right side of eccentric part 32 and countershaft section 33 run through respectively at the two ends of countershaft helical oil groove 331.

With reference to Fig. 1, the first unidirectional control device 4 is located on cylinder 21 and is positioned at the afterbody of vane slot 211 side of compression chamber center (away from), the first unidirectional control device 4 is arranged to allow the lubricant oil uniaxially in oil sump 11 to enter in vane slot 211, in other words, lubricant oil in oil sump 11 can enter vane slot 211 inside by the first unidirectional control device 4, and the lubricant oil of vane slot 211 inside can not be back to oil sump 11 from the first unidirectional control device 4.

As shown in Figure 1, the second unidirectional control device 5 is located at respectively on main bearing 22 and supplementary bearing 23, for example, in the example of Fig. 3 a and Fig. 3 b, on main bearing 22 and supplementary bearing 23, can be formed with respectively mounting hole 223, the second non-return device can be arranged in mounting hole 223, and the second unidirectional control device 5 is arranged to allow the lubricant oil uniaxially in vane slot 211 to enter into main shaft helical oil groove 311, in eccentric helical oil groove 321 and countershaft helical oil groove 331, be lubricant oil in vane slot 211 can by the second unidirectional control device 5 enter into main shaft helical oil groove 311 and countershaft helical oil groove 331 in, and main shaft helical oil groove 311 and countershaft helical oil groove 331 in lubricant oil can not get back in vane slot 211 by the second unidirectional control device 5, thereby the most lubricant oil that effectively guaranteed to enter in vane slot 211 can be fed to main shaft helical oil groove 311, in eccentric helical oil groove 321 and countershaft helical oil groove 331, and then to main bearing 22, supplementary bearing 23 and piston 24 are lubricated.

Further, main shaft helical oil groove 311, countershaft helical oil groove 331 are communicated with by oilhole 221 respectively with the second corresponding unidirectional control device 5, wherein, oilhole 221 can be on corresponding bearing (comprising main bearing 22 and supplementary bearing 23) radially arranges, in order to guarantee processing, the oilhole 221 on main bearing 22 and supplementary bearing 23 can be the straight hole of perforation, during assembling, sealing plug 222 is installed in outer end at oilhole 221, to prevent oil leak, as shown in Figure 3 b.Yet, when bearing is when for example main bearing 22 is provided with relief opening (scheming not shown), because relief opening is general, near vane slot 211, arrange, thereby need to oilhole 221, adopt the design of dodging of relief openings, as shown in Figure 3 a.Certainly, relief opening also can be formed on supplementary bearing 23.It should be noted that, the bearing in Fig. 3 a and 3b can be any one in main bearing 22 and supplementary bearing 23.Be appreciated that the arrangement of oilhole 221 on corresponding bearing can be according to the difference of bearing and adaptive change, the utility model is not made particular determination to this.

When single-cylinder horizontal rotary compressor is worked, as shown in Figure 1, to-and-fro motion by slide plate 25 in the vane slot 211 of cylinder 21, form sliding vane pump, at slide plate 25, from lower dead center, run to the process of top dead center (be slide plate 25 to the direction of the spin axis near bent axle between moving period), the first unidirectional control device 4 is opened, the second unidirectional control device 5 on main bearing 22 and supplementary bearing 23 is all closed, lubricant oil in oil sump 11 is inhaled in sliding vane pump and is stored in vane slot 211, when slide plate 25 runs to lower dead center (to the direction of the spin axis away from bent axle between moving period) from top dead center, the first unidirectional control device 4 is closed, the second unidirectional control device 5 on main bearing 22 and supplementary bearing 23 is all opened, parts of lubricating oil in vane slot 211 by the second guide control device 5 on main bearing 22 via one end of the contiguous eccentric part 32 of main shaft helical oil groove 311 (for example, left end in Fig. 1) enter in main shaft helical oil groove 311, then (for example flow to one end away from eccentric part 32 of main shaft helical oil groove 311, right-hand member in Fig. 1), meanwhile, another part lubricant oil in vane slot 211 by the second unidirectional control device 5 on supplementary bearing 23 via one end of the contiguous eccentric part 32 of countershaft helical oil groove 331 (for example, right-hand member in Fig. 1) enter in countershaft helical oil groove 331, then (for example flow to one end away from eccentric part 32 of countershaft helical oil groove 331, left end in Fig. 1), now the rotation direction of main shaft helical oil groove 311 and countershaft helical oil groove 331 is contrary, finally, lubricant oil is back to oil sump 11 from one end away from eccentric part 32 of main shaft helical oil groove 311 and countershaft helical oil groove 331 respectively.Wherein, lubricant oil flowing in main shaft helical oil groove 311 and countershaft helical oil groove 331, is mainly by the rotation of the helical oil groove on bent axle, and the viscosity kinetic pump of generation is as power, in this process, and oil lubrication main bearing 22 and supplementary bearing 23 friction pairs.Here, it should be noted that, when slide plate 25 is reciprocating on the above-below direction shown in Fig. 1, " lower dead center " can be understood as the minimum point that the tail down campaign of slide plate 25 can reach, and " top dead center " can be understood as the peak that the afterbody of slide plate 25 moves upward and can reach.

In said process, be fed to the lubricant oil of one end of the contiguous eccentric part 32 of main shaft helical oil groove 311 and countershaft helical oil groove 331, can temporarily be stored in respectively in the first shoe cream room 322 and the second shoe cream room 323, the lubricant oil being stored in the first shoe cream room 322 flow in the second shoe cream room 323 by eccentric helical oil groove 321, one end of contiguous eccentric part 32 by countershaft helical oil groove 331 enters in countershaft helical oil groove 331 again, finally be back in oil sump 11, now eccentric helical oil groove 321 is identical with the rotation direction of countershaft helical oil groove 331.In this process, the lubricant oil in eccentric helical oil groove 321 is at lubricated eccentric part 32 and piston 24 in bent axle axial motion.Certainly, the rotation direction of eccentric helical oil groove 321 can also be identical with the rotation direction of main shaft helical oil groove 311, thereby the lubricant oil in the second shoe cream room 323 can flow in the first shoe cream room 322 by eccentric helical oil groove 321, one end of contiguous eccentric part 32 by main shaft helical oil groove 311 enters in main shaft helical oil groove 311 again, and is finally back in oil sump 11 and (schemes not shown).

Because being arranged in corresponding slide plate 25, the second unidirectional control device 5 closes between moving period to the direction of the spin axis near bent axle, and between moving period, open to the direction of the spin axis away from bent axle at corresponding slide plate 25, when horizontal rotary compressor 100 work, at slide plate 25, from lower dead center, run to the process of top dead center, the first unidirectional control device 4 is opened, lubricant oil in oil sump 11 is inhaled in vane slot 211, now, because the second unidirectional control device 5 on main bearing 22 and supplementary bearing 23 is closed, thereby the lubricant oil in vane slot 211 can not enter into the oilhole 221 of main bearing 22 and supplementary bearing 23, when slide plate 25 runs to lower dead center from top dead center, the first unidirectional control device 4 is closed, thereby the lubricant oil in vane slot 211 can not be back in oil sump 11, now, because two the second unidirectional control devices 5 are opened, the lubricant oil in vane slot 211 can enter respectively in main shaft helical oil groove 311 and countershaft helical oil groove 331 by the oilhole 221 on main bearing 22 and supplementary bearing 23.

Alternatively, the first unidirectional control device 4 is located at cylinder 21 inner bottom parts, and the first unidirectional control device 4 is positioned at and with vertical basal plane, to both sides, turns over respectively the formed sector region of predetermined angle, predetermined angle is 30 °, now the first unidirectional control device 4 can be arranged in any position of the above-mentioned sector region of correspondence of cylinder 21, that is to say, vertical plane by first center of unidirectional control device 4 and the spin axis of bent axle and the vertically angle between basal plane are in the scope of-30 °～30 °, preferably, above-mentioned vertical plane and the vertically angle between basal plane are 0 °, be that vertical plane overlaps with vertical basal plane, now the first unidirectional control device 4 be positioned at bent axle spin axis under, because the afterbody of the lubricant oil in oil sump 11 by vane slot 211 enters vane slot 211, then be upwards fed in each helical oil groove, thereby the pasta of oil sump 11 can be arranged on to a lower position, in other words, reduced the requirement to pasta, oil sealing amount is reduced, and then there is stirring oily problem in the rotor 7 of having avoided motor.Wherein, vertically basal plane is the vertical plane of the spin axis by bent axle.Here, it should be noted that, the setting position of the first unidirectional control device 4 comprises endpoint value, and the angle between the vertical plane at the spin axis place of the center of the first unidirectional control device 4 and bent axle and vertical basal plane can be 30 ° or-30 °.

In order to guarantee fuel delivery, the fuel head of oil sump 11 should be higher than the first unidirectional control device 4, and the distance between the fuel head of oil sump 11 and the first unidirectional control device 4 is at least 3mm, particularly, the height of pasta is higher than more than sliding vane pump suction port 3mm, wherein, " sliding vane pump suction port " can be understood as the bottom surface of the first unidirectional control device 4, and the distance between the height of pasta and the bottom surface of the first unidirectional control device 4 is more than or equal to 3mm.

According to the utility model embodiment's horizontal rotary compressor 100, by the afterbody at vane slot 211, the first unidirectional control device 4 is set, and the second unidirectional control device 5 is set respectively on main bearing 22 and supplementary bearing 23, lubricant oil in oil sump 11 can enter in vane slot 211 and supply with fully main shaft helical oil groove 311 by uniaxially, eccentric helical oil groove 321 and countershaft helical oil groove 331, thereby guaranteed lubricant oil flowing between bent axle and compressing mechanism surface of contact, the wearing and tearing between bent axle and compressing mechanism have been avoided, extended the working life of horizontal rotary compressor 100, and reduced noise, simultaneously, owing to the first unidirectional control device 4 being arranged on to the bottom of cylinder 21, the power of application sliding vane pump, less oil sealing amount, lower pasta, just can guarantee the lubricated of oil circuit, do not need to consider that pasta changes the impact on fuel feeding, simplified the oil circuit design of horizontal rotary compressor 100.In addition, owing to not needing machining center hole on bent axle, thereby improved the rigidity of bent axle.

According to a specific embodiment of the present utility model, as shown in Fig. 2 a-Fig. 2 c, the first unidirectional control device 4 comprises: valve body 41 and valve block 42, on valve body 41, be formed with the first valve opening 4111 and the second valve opening 4121, the first valve opening 4111 and the second valve opening 4121 are spaced apart from each other and lay respectively at the both sides of valve body 41, for example the first valve opening 4111 be formed on valve body 41 contiguous slide plate 25 a side (for example, upside in Fig. 2 a and Fig. 2 b), and the second valve opening 4121 is formed on the side away from slide plate 25 (for example, the downside in Fig. 2 a and Fig. 2 b) of valve body 41.

Particularly, valve body 41 comprises valve gap 411 and valve seat 412, with reference to Fig. 2 a and Fig. 2 b, the top of valve seat 412 is opened wide, valve gap 411 is located at the top of valve seat 412 and limits valve pocket 413, the first valve openings 4111 with valve seat 412 and is formed on valve gap 411, and the second valve opening 4121 is formed on the bottom of valve seat 412.Be appreciated that, the concrete molding mode of valve body 41 is not limited to this, for example, can also be the bottom-open of valve seat 412, and valve gap 411 is located at the bottom of valve seat 412, the first valve opening 4111 is formed on the top of valve seat 412, and the second valve opening 4121 is formed on valve gap 411 (schemes not shown).

Valve block 42 at open position (for example, position shown in Fig. 2 b) and closed position (for example, position shown in Fig. 2 a) between, be located at movably in valve pocket 413, on valve block 42, be formed with intercommunicating pore 421, when valve block 42 is positioned at open position, intercommunicating pore 421 is communicated with the first valve opening 4111 and the second valve opening 4121 so that the lubricant oil of oil sump 11 enters vane slot 211, and when valve block 42 is positioned at closed position, valve block 42 cuts off the first valve opening 4111 and the second valve opening 4121.Wherein, the transverse dimension of valve block 42 is preferably the transverse dimension that is slightly less than or equals valve pocket 413, so that valve block 42 can flatly move up and down valve pocket 413 is interior.Thus, the first unidirectional control device 4 simple in structure, and there is good break-make effect.

Further, the first valve opening 4111 and intercommunicating pore 421 small part that is projected in the reference plane that are parallel to valve block 42 overlaps, like this when valve block 42 is positioned at open position, as shown in Figure 2 a, first lubricant oil in oil sump 11 can enter in valve pocket 413 by the second valve opening 4121, then by intercommunicating pore 421, via the first valve opening 4111, flows in vane slot 211.Be appreciated that area that the projection in above-mentioned reference plane of the first valve opening 4111 and intercommunicating pore 421 overlaps can be according to actual requirement and adaptive change, the utility model is not done concrete restriction to this.

The second valve opening 4121 and the projection of intercommunicating pore 421 in reference plane are spaced apart from each other and do not overlap, when valve block 42 is positioned at closed position, as shown in Figure 2 b, although the lubricant oil in vane slot 211 can enter in valve pocket 413 by the first valve opening 4111, but because valve block 42 is by the second valve opening 4121 shutoff, thereby the lubricant oil in valve pocket 413 can not be back in oil sump 11.

As shown in Figure 2 c, the first valve opening 4111 and the second valve opening 4121 coaxially arrange, and the cross-section area of the first valve opening 4111 is greater than the cross-section area of the second valve opening 4121, intercommunicating pore 421 is that a plurality of and a plurality of intercommunicating pores 421 are along the circumferential spaced apart distribution of the second valve opening 4121, now the closest approach at the center of distance second valve opening 4121 of each intercommunicating pore 421 is positioned at the outside of the second valve opening 4121 sidewalls, preferably, a plurality of intercommunicating pores 421 were upwards uniformly distributed in the week of the second valve opening 4121.Here, it should be noted that, " outside " refers to the side away from the second valve opening 4121 centers.Wherein, for convenient processing, the shape of the first valve opening 4111, the second valve opening 4121 and intercommunicating pore 421 is preferably circle, certainly, the shape of the first valve opening 4111, the second valve opening 4121 and intercommunicating pore 421 can also be ellipse, long-round-shape or polygonal etc., the quantity of intercommunicating pore 421 can be according to specific requirement specific design, to have better fuel feeding effect.

Preferably, the second unidirectional control device 5 is identical with the structure of the first unidirectional control device 4.It should be noted that, owing to above the structure of the first unidirectional control device 4 being explained, repeat no more here.

With reference to Fig. 3 a and Fig. 3 b, when horizontal rotary compressor 100 is single-cylinder horizontal rotary compressor, in at least one in main bearing 22, supplementary bearing 23, be formed with draining hole 224, draining hole 224 is communicated with corresponding helical oil groove and is upwards spaced apart in the week of the spin axis of bent axle with corresponding oilhole 221, thus, the lubricant oil in helical oil groove is back in oil sump 11 again.Here there are following three kinds of situations: the first, when draining hole 224 is only formed on main bearing 22, draining hole 224 is communicated with main shaft helical oil groove 311 and is upwards spaced apart from each other in the week of bent axle with the oilhole 221 on main bearing 22; The second,, when draining hole 224 is only formed on supplementary bearing 23, draining hole 224 is communicated with countershaft helical oil groove 331 and is upwards spaced apart from each other in the week of bent axle with the oilhole 221 on supplementary bearing 23; Three, when draining hole 224 is respectively formed on main bearing 22 and supplementary bearing 23, draining hole 224 on main bearing 22 is communicated with main shaft helical oil groove 311 and is upwards spaced apart from each other in the week of bent axle with the oilhole 221 on main bearing 22, and the draining hole 224 on supplementary bearing 23 is communicated with countershaft helical oil groove 331 and is upwards spaced apart from each other in the week of bent axle with the oilhole 221 on supplementary bearing 23.

With reference to Fig. 5, when horizontal rotary compressor 100 is double-cylinder horizontal rotary compressor, cylinder assembly comprises two cylinders 21, spaced apart by dividing plate 26 between two cylinders 21, on each cylinder 21, be equipped with the first unidirectional control device 4, in at least one in main bearing 22, supplementary bearing 23 and dividing plate 26, be formed with draining hole 224, thereby the lubricant oil between compressing mechanism and the friction pair of bent axle can be back in oil sump 11 by draining hole 224.

Particularly, as shown in Figure 5, on bent axle, there are two eccentric parts 32, on each eccentric part 32, be all formed with eccentric helical oil groove 321, and the left and right end face of corresponding eccentric part 32 is all run through at the two ends of each eccentric helical oil groove 321, wherein, the rotation direction of the eccentric helical oil groove 321 in left side is contrary with the rotation direction of countershaft helical oil groove 331, the rotation direction of the eccentric helical oil groove 321 on right side is contrary with the rotation direction of main shaft helical oil groove 311, thereby the left end of the eccentric helical oil groove 321 that the lubricant oil in the oilhole 221 on supplementary bearing 23 can be by left side enters in this bias helical oil groove 321, then flow to the right-hand member of this bias helical oil groove 321 to the right, meanwhile, lubricant oil in oilhole 221 on main bearing 22 enters in this bias helical oil groove 321 by the right-hand member of the eccentric helical oil groove 321 on right side, then flow to the left end of this bias helical oil groove 321 left, the lubricant oil in final two eccentric helical oil grooves 321 can be discharged by the draining hole 224 on dividing plate 26.

Further, as shown in Fig. 3 a, Fig. 3 b and Fig. 5, each draining hole 224 comprises the first draining hole 2241 and the second draining hole 2242 communicating with each other, the inner side that the first draining hole 2241 is positioned at the second draining hole 2242 is radially inner side for example, wherein the cross-section area in the first draining hole 2241 is less than the cross-section area in the second draining hole 2242, thereby has effectively prevented from entering lubricant oil between compressing mechanism and the friction pair of bent axle not to compressing mechanism and bent axle sufficient lubrication 224 situations about flowing out from draining hole just.

With reference to Fig. 4 a and Fig. 4 b, horizontal rotary compressor 100 further comprises: mounting blocks 8, mounting blocks 8 is located at least one in main bearing 22 and supplementary bearing 23, the mode that for example mounting blocks 8 can be connected by screw is arranged on corresponding bearing, wherein the second unidirectional control device 5 is located on mounting blocks 8, now mounting hole 223 is formed on mounting blocks 8, the second unidirectional control device 5 can be arranged in mounting hole 223, and on mounting blocks 8, be formed with the auxiliary oilhole 81 being communicated with the second unidirectional control device 5, auxiliary oilhole 81 is communicated with the oilhole 221 on corresponding bearing, wherein, auxiliary oilhole 81 can be along the radially extension of corresponding bearing, as shown in Fig. 4 a.Certainly, when bearing is when for example main bearing 22 is provided with relief opening (scheming not shown), because relief opening is general, near vane slot 211, arrange, thereby need to auxiliary oilhole 81, adopt the design of dodging of relief openings, as shown in Figure 4 b.Be appreciated that the arrangement of auxiliary oilhole 81 on mounting blocks 8 can be according to the practical structures of corresponding bearing and adaptive change, the utility model is not made particular determination to this.Thus, by mounting blocks 8 is set, can in the situation that not changing existing bearing structure, meet the lubricated of horizontal rotary compressor 100, application is good, and has saved cost.

According to the utility model embodiment's horizontal rotary compressor 100, the entrance of sliding vane pump is in the minimum point of compressor, the power of application sliding vane pump, less oil sealing amount, lower pasta, just can guarantee the lubricated of oil circuit, thereby not need to consider that pasta changes the impact on fuel feeding, simplify the oil circuit design of horizontal rotary compressor 100.The fuel system that simultaneously adopts sliding vane pump and viscosity kinetic pump to combine, guarantees lubricant oil flowing between each friction pair.Because slide plate pump intake is in compressor minimum point, low to pasta requirement, oil sealing amount is few, has effectively avoided the rotor 7 of motor to stir oily problem.In addition, bent axle does not need machining center hole, thereby has increased the rigidity of bent axle.

In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiments or example.

Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present utility model and aim, can carry out multiple variation, modification, replacement and modification to these embodiments, scope of the present utility model is limited by claim and equivalent thereof.

Claims (11)

1. a horizontal rotary compressor, is characterized in that, comprising:

Housing, has oil sump in described housing;

Compressing mechanism, described compressing mechanism is located in described housing, described compressing mechanism comprises cylinder assembly, main bearing, supplementary bearing, piston and slide plate, described main bearing and described supplementary bearing are located at respectively the both sides of described cylinder assembly and limit compression chamber with described cylinder assembly, described piston can roll along the inwall of described compression chamber, on described cylinder assembly, be formed with vane slot, described slide plate is located in described vane slot movably;

Bent axle, described bent axle runs through described compressing mechanism, described bent axle comprises successively connected main shaft section, eccentric shaft part and countershaft section, described eccentric shaft part has eccentric part, wherein said piston sleeve is located on described eccentric part, in one of them in described main shaft section and described main bearing, be formed with main shaft helical oil groove, in one of them in described eccentric part and described piston, be formed with eccentric helical oil groove, in one of them in described countershaft section and described supplementary bearing, be formed with countershaft helical oil groove, described main shaft helical oil groove, described eccentric helical oil groove, described countershaft helical oil groove is all communicated with described vane slot,

The first unidirectional control device, described the first unidirectional control device is located at the afterbody of described vane slot, and described the first unidirectional control device is arranged to allow the lubricant oil uniaxially in described oil sump to enter in described vane slot; And

The second unidirectional control device, described the second unidirectional control device is located at respectively on described main bearing and described supplementary bearing, and described the second unidirectional control device is arranged to allow the lubricant oil uniaxially in described vane slot to enter in described main shaft helical oil groove, described eccentric helical oil groove and described countershaft helical oil groove.

2. horizontal rotary compressor according to claim 1, it is characterized in that, described the first unidirectional control device is arranged in corresponding described slide plate and opens between moving period to the direction of the spin axis near described bent axle, and the described slide plate in correspondence is closed between moving period to the direction of the spin axis away from described bent axle

Described the second unidirectional control device is arranged in corresponding described slide plate and closes between moving period to the direction of the spin axis near described bent axle, and between moving period, opens to the direction of the spin axis away from described bent axle at the described slide plate of correspondence.

3. horizontal rotary compressor according to claim 1 and 2, is characterized in that, described the first unidirectional control device comprises:

Valve body, is formed with the first valve opening and the second valve opening on described valve body, described the first valve opening is formed on a side of the described slide plate of vicinity of described valve body, and described second valve hole is formed on the side away from described slide plate of described valve body; With

Valve block, described valve block is located at movably in described valve body between open position and closed position, on described valve block, be formed with intercommunicating pore, described in when described valve block is positioned at described open position, intercommunicating pore is communicated with described the first valve opening and described the second valve opening so that the lubricant oil of described oil sump enters described vane slot, when described valve block is positioned at described closed position described in valve block will described the first valve opening and described the second valve opening partition.

4. horizontal rotary compressor according to claim 3, it is characterized in that, described the first valve opening and described intercommunicating pore overlap in the small part that is projected to being parallel in the reference plane of described valve block, and described the second valve opening and the projection of described intercommunicating pore in described reference plane are spaced apart from each other.

5. horizontal rotary compressor according to claim 4, it is characterized in that, described the first valve opening and described the second valve opening coaxially arrange, and the cross-section area of described the first valve opening is greater than the cross-section area of described the second valve opening, described intercommunicating pore is that a plurality of and described a plurality of intercommunicating pores are along the circumferential spaced apart distribution of described the second valve opening.

6. horizontal rotary compressor according to claim 3, is characterized in that, described the second unidirectional control device is identical with the structure of described the first unidirectional control device.

7. horizontal rotary compressor according to claim 1, it is characterized in that, described the first unidirectional control device is located at described cylinder inner bottom part and is positioned at and with vertical basal plane, to both sides, turns over respectively the formed sector region of predetermined angle, described predetermined angle is 30 °, wherein said vertical basal plane is the vertical plane of the spin axis by described bent axle

And the fuel head of described oil sump is higher than more than described the first unidirectional control device 3mm.

8. horizontal rotary compressor according to claim 1, is characterized in that, at least one in described main bearing, described supplementary bearing, is formed with draining hole, and described draining hole is communicated with corresponding described helical oil groove.

9. horizontal rotary compressor according to claim 8, it is characterized in that, described in each, draining hole comprises the first draining hole and the second draining hole communicating with each other, described the first draining hole is positioned at the inner side in described the second draining hole, and the cross-section area in wherein said the first draining hole is less than the cross-section area in the second draining hole.

10. horizontal rotary compressor according to claim 1, is characterized in that, further comprises:

Mounting blocks, described mounting blocks is located at least one in described main bearing and described supplementary bearing, and wherein said the second unidirectional control device is located on described mounting blocks.

11. horizontal rotary compressors according to claim 1, is characterized in that, described cylinder assembly comprises two cylinders, are equipped with described the first unidirectional control device described in each on cylinder.