CN203146278U - Coach air condition compressor - Google Patents
Coach air condition compressor Download PDFInfo
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- CN203146278U CN203146278U CN 201320161251 CN201320161251U CN203146278U CN 203146278 U CN203146278 U CN 203146278U CN 201320161251 CN201320161251 CN 201320161251 CN 201320161251 U CN201320161251 U CN 201320161251U CN 203146278 U CN203146278 U CN 203146278U
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Abstract
The utility model relates to a reciprocating piston-type coach air condition compressor. The reciprocating piston-type coach air condition compressor comprises a cylinder body, a front cover, a rear cover, a bottom cover, a crank case, cylinder holes and pistons, wherein a crank shaft is arranged in the crank case, the crank shaft is a double-throw crank shaft, the crank throw angle of the crank shaft is 180 degrees, a front throw crank shaft of the crank shaft is arranged on one side, provided with a front bearing, of the front cover in a connected mode, a rear throw crank shaft is arranged on one side, provided with a rear bearing, of the rear cover in a connected mode, and the crank shaft is supported and axially located by the front bearing and the rear bearing. Two connecting rods are sleeved on each crank throw of the crank shaft, each connecting rod is connected with one piston, and rotational motion of the crank shaft is changed into reciprocating motion of the pistons in the cylinder holes through the connecting rods, a shaft seal with a mechanical seal structure is arranged at the position, outside the front bearing, of the front cover, the shaft seal with the mechanical seal structure comprises a spring, a spring seat, a moving-ring sealing ring, a moving friction ring and a static friction ring from inside to outside, the static friction ring and a shaft seal cover arranged on the front cover are of an integrated structure and made of nodular cast iron materials. The reciprocating piston-type coach air condition compressor is small in external dimension, light in weight, capable of improving the discharge capacity by 16% and wide in application range.
Description
Technical field
The utility model relates to air condition compressor, refers in particular to a kind of reciprocating piston type coach air conditioner compressor.
Background technique
Present domestic coach air conditioner is with the product of compressor main body entrance Germany Bitzer company and German blog company.Germany's Bitzer compressor shaft gland leakage failure rate surpasses 5%, and failure frequencies such as seize, tile kilning are also higher; Blog company quality of product is more stable, but price is higher.Therefore, develop that a performance is good, brand product is very necessary outside the steady quality, low-cost big displacement automobile air-conditioning compressor subrogate country.
Common coach air conditioner compressor is generally four cylinder reciprocating piston types series compressor, and discharge capacity has four kinds of 400cc, 470cc, 560cc, 650cc, can satisfy the needs of 8～12 meters coach air conditioners.In recent years, along with urban bus develops toward maximization, low-floor direction, 12 meters long bus and 12 meters low-floor bus have appearred surpassing.Such bus inner space increases, and uses 650cc capacity compressors refrigerating capacity deficiency, needs to use six cylinder compressors of bigger discharge capacity.Use six cylinder compressors with using four cylinder compressors that following inferior position is relatively arranged: compressor weight increases by 30%, and the passenger vehicle road fuel consumption increases; The compressor cost increases by 50%; The compressor external dimension increase, and need to increase the compressor installing space in the engine bin.
Summary of the invention
The purpose of this utility model is improved and is innovated at the shortcoming that exists in the background technique and problem, and the four cylinder reciprocating piston type coach air conditioner compressors that a kind of Applicable scope is wider, in light weight, reliability is high are provided.
The technical solution of the utility model is a kind of cylinder body, protecgulum, bonnet, bottom of comprising of structure, be arranged on the cylinder body, by the crankcase of bottom and front and rear covers sealing, be arranged in the cylinder-bore of crankcase top, cylinder body both sides and be arranged on the air condition compressor of the piston in the cylinder-bore, wherein:
Be provided with bent axle in the crankcase, bent axle is the two-throw crank shaft of crank throw angle 180o, turn fore bearing one side that is connected in the protecgulum place before the bent axle, rear bearing one side that axle is connected in the bonnet place is turned in the rear end, and bent axle supports and axially locating by fore bearing and rear bearing; Be socketed with two connecting rods on the every crank throw of described bent axle and connect piston respectively, and by connecting rod rotatablely moving of bent axle is converted to the to-and-fro motion of piston in cylinder-bore;
The protecgulum place in the described fore bearing outside is provided with mechanical seal structure axle envelope, comprise spring, spring seat, seal ring of moving ring, kinetic friction ring and static friction ring from the inside to the outside successively, wherein the shaft seal cover on static friction ring and the protecgulum is the overall structure of ductile cast iron material.
Advantage of the present utility model and beneficial effect:
The utility model reciprocating piston type system contracting machine outer type is of a size of 410X360X370mm, weight is 40Kg, five kinds of discharge capacities, maximum pump discharge reaches 975cc, with domestic and international similar four cylinder coach air conditioner compressors relatively, under little, the lightweight situation of external dimension, maximum pump discharge has improved 16%, can partly substitute six cylinder compressors, Applicable scope is wider.Simultaneously shaft seal structure is optimized, improved compressor reliability.
Description of drawings
Fig. 1 is the utility model vertical profile structural representation.
Fig. 2 is the utility model plan view.
Fig. 3 is Fig. 2 A-A cross-sectional view.
Fig. 4 is the utility model mechanical seal structure axle envelope structure for amplifying schematic representation.
Embodiment
By Fig. 1 to 4 as can be known, the utility model comprises cylinder body 11, protecgulum 32, bonnet 33, bottom 34, be arranged on the cylinder body 11, by the crankcase 111 of bottom and front and rear covers sealing, be arranged in the cylinder-bore 112 of crankcase 111 tops, cylinder body 11 both sides, with the piston 16 that is arranged in the cylinder-bore 112, wherein:
Be provided with bent axle 12 in the crankcase 111, bent axle 12 is the two-throw crank shaft of crank throw angle 180o, turn fore bearing 13 1 side that are connected in protecgulum 32 places before the bent axle 12, rear bearing 14 1 sides that axle is connected in bonnet 33 places are turned in the rear end, and bent axle 12 supports and axially locating by fore bearing 13 and rear bearing 14; Be socketed with two connecting rods 17 on the every crank throw of described bent axle 12 and connect piston 16 respectively, and by connecting rod 17 rotatablely moving of bent axle 12 is converted to the to-and-fro motion of piston 16 in cylinder-bore 112;
Bent axle 12 described in the utility model comprises the bent axle of two kinds of radiuses of 24.5mm and 21.5mm, drives two kinds of piston strokes that piston 16 is finished 49mm or 43mm respectively, and described bent axle 12 is provided with oilhole 121.Described piston 16 comprises the piston of 80mm, 70mm, 65mm and 60mm diameter, and the piston 16 of each diameter forms compressor 975cc, 750cc, 650cc, 560cc and 490cc discharge capacity with bent axle 11 configurations.112 two one row of described cylinder-bore, V-shaped cylinder body 11 both sides that are arranged in, angle between banks are 80o, on every row cylinder-bore 112 cylinder face 116 is set, every row cylinder face 116 is provided with intakeport 117 and relief opening 118, on every row cylinder face 116 valve group 15 and cylinder head 31 is housed; Wherein valve group 15 is the Reed Valve structure, comprises the Aspirating valves 151 and the outlet valve 152 that are installed on the same valve plate 153; Cylinder head 31 comprises Aspirating valves 311 and exhaust cavity 312; Piston 16 in the cylinder-bore 112 down moves, and refrigeration agent enters intakeport 117 and air aspiration cavity 311 by the air aspiration cavity 113 that arranges on the cylinder body 11, sucks cylinder-bore 112 by Aspirating valves 151 again; Piston 16 in the cylinder-bore 112 up moves, and refrigeration agent compresses in cylinder-bore 112 and enters exhaust cavity 312 and enter the exhaust cavity 114 that relief opening 118 drains into cylinder body 11 settings by outlet valve 152.Also be provided with the suction line valve 21 and the discharge line valve 22 that connect the external refrigeration loop on the described cylinder body 11.Described cylinder body 11 is provided with oil-sucking hole 115, and oil-sucking hole 115 communicates with the oil pump 19 of bonnet 33 and 14 settings of rear bearing, the oilhole 121 that reaches on the bent axle 12, and by oil pump 19 lubricant oil in the crankcase 111 is pumped into conveying and each motive position of lubricate compressors in the oilhole 121 by oil-sucking hole 115.
Design principle of the present utility model:
The utility model comprises devices such as a cylinder body, bent axle, front and back bearings, piston, connecting rod, valve group, oil pump, suction line valve, discharge line valve, axle envelope, cylinder head, protecgulum, bonnet, bottom.Cylinder body is provided with crankcase, four cylinder-bore, exhaust cavity, air aspiration cavity, oil-sucking hole, and per two cylinder-bore are row, and V-arrangement is arranged in the cylinder body both sides, 80 ° of angle between banks.Piston is connected with connecting rod with bent axle, and bent axle is crutches, and 180 ° of crank throw alternate angles are socketed with two connecting rods on the every crank throw, by connecting rod the crankshaft rotating motion is converted to reciprocating motion of the pistons.
The utility model bent axle has two kinds, and crank throw radius difference can realize two kinds of piston strokes of 49mm and 43mm respectively; Described piston has four kinds, is characterized as the diameter difference, and piston diameter is specially 80 mm, 70mm, 65mm, 60mm; By different crankshaft and pistons is installed, can realize the compressor of five kinds of different displacements, discharge capacity is respectively 490cc, 560cc, 650cc, 750cc, 975cc.The beneficial effect of this kind structure is, under the prerequisite that does not increase the compressor external dimension, realizes five kinds of compressor displacements, can satisfy the needs of 8～13.7 meters coach air conditioners, can partly satisfy the needs of large-scale bus air-conditioning again.Obviously, compressor Applicable scope is wider.
Static friction ring and the shaft seal cover plate of the utility model mechanical seal structure axle envelope adopt overall structure, static friction ring and shaft seal cover sheet material material adopt spheroidal graphite cast iron, the heat that friction pair produces can pass by the shaft seal cover plate rapidly, solved the heat dissipation problem of axle envelope friction pair, avoided heat radiation bad and cause that axle envelope lost efficacy, the trickle hole on spheroidal graphite cast iron surface can store less amount of lubrication oil simultaneously, avoids friction pair dry friction situation to take place, and axle envelope reliability improves greatly.
The utility model structure and working principle:
As shown in Figure 1, cylinder body 11 is provided with crankcase 111, and bent axle 12 is housed in the crankcase 111, bent axle 12 is crutches, 180 ° of crank throw alternate angles, and crankcase 111 front ends are equipped with bearing 13, bearing 14 is equipped with in crankcase 111 rear ends, and bent axle 12 supports and axially locating by bearing 13 and bearing 14.
As shown in Figures 2 and 3, cylinder body 11 is provided with four cylinder-bore 112, and per two cylinder-bore 112 are row, and V-arrangement is arranged in the cylinder body both sides, and 80 ° of angle between banks are equipped with valve group 15 and cylinder head 31 on every row cylinder face 116, in each cylinder-bore 112 piston 16 are housed.Valve group 15 adopts the Reed Valve structure, and Aspirating valves 151 is installed on the same valve plate 153 with outlet valve 152.Cylinder head 31 is provided with air aspiration cavity 311 and exhaust cavity 312.
Piston 16 is connected with bent axle 12 usefulness connecting rods 17, is socketed with two connecting rods 17 on the every crank throw, and connecting rod 17 is converted to the to-and-fro motion of piston 16 in cylinder-bore 112 with rotatablely moving of bent axle 12.
The crank throw radius of bent axle 12 has two kinds, is specially 24.5mm and 21.5mm, can realize two kinds of reciprocating motion of the pistons strokes of 49mm and 43mm respectively; The diameter of piston 16 has four kinds, is specially 80mm, 70mm, 65mm, 60mm; By different crankshaft and pistons is installed, can realize the compressor of five kinds of different displacements, discharge capacity is respectively 490cc, 560cc, 650cc, 750cc, 975cc.
As shown in Figure 1, cylinder body 11 is provided with oil-sucking hole 115, on rear bearing 14 outside cylinder bodies 11 bonnet 33 and oil pump 19 is housed, and on the crankcase 111 lower end cylinder bodies 11 bottom 34 is housed, and lubricant oil is contained in the crankcase 111.Oil pump 19 is the rotor oil pump, drives by bent axle 12.During compressor operation, oil pump 19 pumps into the lubricant oil of crankcase 111 bottoms in the oilhole 121 of bent axle 12 by oil-sucking hole 115, is transported to each motive position of compressor again, and motive position is lubricated.
As shown in Figure 1 and Figure 4, on the cylinder body 11 in fore bearing 13 outsides protecgulum 32 is housed, kinetic friction ring 181, seal ring of moving ring 182, spring seat 183, spring 184 are housed on the bent axle 12 in fore bearing 13 outsides, and static friction ring 185 and shaft seal cover adopt overall structure, and shaft seal cover is contained on the protecgulum 32.Kinetic friction ring 181, seal ring of moving ring 182, spring seat 183, spring 184, static friction ring 185 have constituted mechanical seal structure axle envelope 18.Static friction ring 185 and shaft seal cover are an integral body, and material adopts spheroidal graphite cast iron.The benefit of this kind structure is the unwanted stationary ring seal ring of axle envelope, the heat that friction pair produces can pass by the shaft seal cover plate rapidly, avoided heat radiation bad and cause that axle envelope lost efficacy, the trickle hole on spheroidal graphite cast iron surface can store less amount of lubrication oil simultaneously, avoid friction pair dry friction situation to take place, axle envelope reliability improves greatly.
The utility model bent axle 12 is configured to the different of piston 16:
When piston diameter is 80mm, when the piston stroke stroke was 49mm, the radius of bent axle was 24.5mm, and compressor displacement is 975cc;
When piston diameter is 70mm, when the piston stroke stroke was 49mm, the radius of bent axle was 24.5mm, and compressor displacement is 750cc;
When piston diameter is 65mm, when the piston stroke stroke was 49mm, the radius of bent axle was 24.5mm, and compressor displacement is 650cc;
When piston diameter is 60mm, when the piston stroke stroke was 49mm, the radius of bent axle was 24.5mm, and compressor displacement is 560cc;
When piston diameter is 60mm, when the piston stroke stroke was 43mm, the radius of bent axle was 21.5mm, and compressor displacement is 490cc.
Embodiment described in the utility model only is the description that preferred implementation of the present utility model is carried out; be not that the utility model design and scope are limited; under the prerequisite that does not break away from the utility model design philosophy; engineers and technicians make the technical solution of the utility model in related domain various modification and improvement; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.
Claims (6)
1. coach air conditioner compressor, comprise cylinder body (11), protecgulum (32), bonnet (33), bottom (34), be arranged on cylinder body (11) go up, by the crankcase (111) of bottom and front and rear covers sealing, be arranged in the cylinder-bore (112) of crankcase (111) top, cylinder body (11) both sides, piston (16) with being arranged in the cylinder-bore (112) is characterized in that:
Be provided with bent axle (12) in the crankcase (111), bent axle (12) is the two-throw crank shaft of crank throw angle 180o, the preceding axle that turns of bent axle (12) is connected in fore bearing (13) one sides that protecgulum (32) is located, the rear end is turned axle and is connected in rear bearing (14) one sides that bonnet (33) is located, and bent axle (12) supports and axially locating by fore bearing (13) and rear bearing (14); Be socketed with two connecting rods (17) on the every crank throw of described bent axle (12) and connect piston (16) respectively, and by connecting rod (17) rotatablely moving of bent axle (12) is converted to the to-and-fro motion of piston (16) in cylinder-bore (112);
The protecgulum (32) in described fore bearing (13) outside locates to be provided with mechanical seal structure axle envelope (18), comprise spring (184), spring seat (183), seal ring of moving ring (182), kinetic friction ring (181) and static friction ring (185) from the inside to the outside successively, wherein the shaft seal cover on static friction ring (185) and the protecgulum (32) is the overall structure of ductile cast iron material.
2. coach air conditioner compressor according to claim 1, it is characterized in that described bent axle (12) comprises the bent axle of two kinds of radiuses of 24.5mm and 21.5mm, drive piston (16) respectively and finish two kinds of piston strokes of 49mm or 43mm, described bent axle (12) is provided with oilhole (121).
3. coach air conditioner compressor according to claim 1, it is characterized in that described piston (16) comprises the piston of 80mm, 70mm, 65mm and 60mm diameter, the piston of each diameter (16) forms compressor 975cc, 750cc, 650cc, 560cc and 490cc discharge capacity with bent axle (11) configuration.
4. coach air conditioner compressor according to claim 1, it is characterized in that (112) two one row of described cylinder-bore, V-shaped cylinder body (11) both sides that are arranged in, angle between banks are 80o, cylinder face (116) is set on every row cylinder-bore (112), every row cylinder face (116) is provided with intakeport (117) and relief opening (118), and valve group (15) and cylinder head (31) are housed on every row cylinder face (116); Wherein valve group (15) is the Reed Valve structure, comprises the Aspirating valves (151) and the outlet valve (152) that are installed on the same valve plate (153); Cylinder head (31) comprises Aspirating valves (311) and exhaust cavity (312); Piston (16) in the cylinder-bore (112) down moves, and refrigeration agent is gone up the air aspiration cavity (113) that arranges by cylinder body (11) and entered intakeport (117) and air aspiration cavity (311), sucks cylinder-bore (112) by Aspirating valves (151) again; Piston (16) in the cylinder-bore (112) up moves, and refrigeration agent compresses in cylinder-bore (112) and enters exhaust cavity (312) and enter the exhaust cavity (114) that relief opening (118) drains into cylinder body (11) setting by outlet valve (152).
5. coach air conditioner compressor according to claim 1 is characterized in that also being provided with on the described cylinder body (11) suction line valve (21) and the discharge line valve (22) that connects the external refrigeration loop.
6. coach air conditioner compressor according to claim 1, it is characterized in that described cylinder body (11) is provided with oil-sucking hole (115), and the oil pump (19) that arranges between oil-sucking hole (115) and bonnet (33) and rear bearing (14), and bent axle (12) on oilhole (121) communicate, and by oil pump (19) interior the lubricant oil of crankcase (111) is pumped into also each motive position of lubricate compressors of the interior conveying of oilhole (121) by oil-sucking hole (115).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320161251 CN203146278U (en) | 2013-04-03 | 2013-04-03 | Coach air condition compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320161251 CN203146278U (en) | 2013-04-03 | 2013-04-03 | Coach air condition compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146278U true CN203146278U (en) | 2013-08-21 |
Family
ID=48973809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320161251 Expired - Fee Related CN203146278U (en) | 2013-04-03 | 2013-04-03 | Coach air condition compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893748A (en) * | 2017-11-13 | 2018-04-10 | 中鼎恒盛气体设备（芜湖）有限公司 | A kind of Multifunction crankshaft case |
-
2013
- 2013-04-03 CN CN 201320161251 patent/CN203146278U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893748A (en) * | 2017-11-13 | 2018-04-10 | 中鼎恒盛气体设备（芜湖）有限公司 | A kind of Multifunction crankshaft case |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20180403 |