CN209278084U - A kind of split type crankcase of refrigeration compressor - Google Patents

Abstract

The utility model provides a kind of split type crankcase of refrigeration compressor, including pedestal, cylinder block and crankshaft base, formed by integrally casting has a fixing groove on the right side of pedestal upper end, two screw holes of setting are penetrated in fixing groove bottom, a cylinder block is placed in fixing groove, cylinder block lower end is cylinder block pedestal, protrude cylinder block two sides in cylinder block pedestal both ends, it is penetrated on the cylinder block pedestal of protrusion and is equipped with screw hole corresponding with the screw hole of fixing groove bottom, and cylinder block is fixed in fixing groove by fixing bolt, through-hole is offered inside cylinder block, the utility model can reduce heat-conducting area, increase refrigeration effect, prevent the thermally conductive too strong use for influencing compressor, and also have the function of reducing crankshaft and crank channel contact area, the frictional force between crankshaft and crank channel can be reduced, reduce abrasion, it can be effective Increase the service life of crankshaft and crank channel, and can be very good to reduce the energy that transmission uses.

Description

A kind of split type crankcase of refrigeration compressor

Technical field

The utility model relates to arrive Compressor Technology field, the split type crankcase of specially a kind of refrigeration compressor.

Background technique

The position that cylinder block lower part is used to install crankshaft is known as crankcase, and crankcase divides upper crankcase and lower crankcase.Its Middle lower crankcase is used to lubrication oil, and closes upper crankcase, therefore also known as oil sump, oil sump stress very little are generally adopted It is stamped to form with sheet metal, shape depends on the general layout of engine and the capacity of machine oil.

Existing lower crankcase is mostly integrated casting, and heat-conducting effect is strong, for refrigeration compressor using when have a fixing It rings, and also without a kind of good solution in existing technology, and can be generated in the junction of crank channel and crankshaft Certain frictional force, for a long time contact can make crankshaft and pedestal generate abrasion, shorten the working life, also will increase crank rotation makes Energy increases consumption, for this purpose, the utility model proposes a kind of refrigeration compressor with split type crankcase for solve it is above-mentioned Problem.

Utility model content

The purpose of this utility model is to provide a kind of split type crankcases of refrigeration compressor, to solve above-mentioned background skill The problem of being proposed in art.

To achieve the above object, the utility model provides the following technical solutions: a kind of split type crankshaft of refrigeration compressor Case, including pedestal, cylinder block and crankshaft base, the pedestal upper end right side are equipped with a fixing groove, set in the fixing groove bottom There are two screw holes, and a cylinder block is placed in the fixing groove, and the cylinder block lower end is cylinder block pedestal, the cylinder Cylinder block two sides are protruded at seat pedestal both ends, and spiral shell corresponding with the screw hole of fixing groove bottom is equipped on the cylinder block pedestal of protrusion Wire hole, and cylinder block is fixed in fixing groove by fixing bolt, it is equipped with through-hole inside the cylinder block, is fixed in through-hole One layer of packing is connected, a diversion pipe is fixedly connected with inside the packing, forms airflow channel, the base in the diversion pipe Seat right side upper end is welded with two groups of anticollison blocks, and lower end is welded with two groups of pillars on the right side of the pedestal, is equipped among the pedestal One crankshaft slot, the crankshaft trench bottom are equipped with through-hole, and the through-hole bottom is equipped with a bearing groove, consolidates in the bearing groove Surely a bearing is connected, the pedestal lower end is fixedly connected with a crankshaft base by fixing bolt, among the crankshaft base upper end Bearing is abutted, a circle sealing ring is equipped in the crankshaft base upper end, is equipped with seal groove corresponding with sealing ring in pedestal lower end, Crankshaft base is fixedly connected with one layer of gasket with the junction of pedestal, and the crankshaft base is cylindrical, in the crankshaft base lower end Equipped with a bearing groove corresponding with the bearing groove of pedestal lower end, a bearing is fixedly connected in the bearing groove, in the song Crank channel is equipped with inside axle bed, the crank channel inner wall is equipped with oil groove.

Preferably, the cylinder block end face is fixedly connected with one piece of gasket by fixing bolt, is equipped among the gasket logical Hole, the size of through-hole is more than or equal to the size of airflow channel, and less than the size of diversion pipe, gasket quadrangle lower end is equipped with one The pillar of forming is supported between gasket and cylinder block end face by pillar and forms heat-insulation chamber.

Preferably, the oil groove in the shape of a spiral, oil groove section semicircular in shape.

Preferably, ceramic layer is equipped with inside the diversion pipe, water conservancy diversion inner tube layer is equipped with sound insulating pad, and outside is fixedly connected with one layer Pvc pipe, pvc pipe outside are fixedly connected in packing, and the packing is fixedly connected on cylindrical inside cylinder block.

Compared with prior art, the utility model has the beneficial effects that

1. the utility model can reduce heat-conducting area, increase refrigeration effect, prevents making for thermally conductive too strong influence compressor With, and also have the function of reducing crankshaft and crank channel contact area, it is possible to reduce rubbing between crankshaft and crank channel Power is wiped, abrasion is reduced, the service life of crankshaft and crank channel can be effectively increased, and can be very good to reduce what transmission used Energy reduces consumption, and is split type assembling, and the single-casting that compares is, easier for installation, is more convenient maintenance replacement；

2. the utility model is equipped with gasket, heat-insulation chamber is formed between gasket and cylinder block, is cooperated by gasket and heat-insulation chamber The heat-conducting area that cylinder block can be reduced increases the using effect of refrigeration compressor；

3. the utility model is equipped with crankshaft base, lower end is equipped with a bearing groove, bearing groove among the pedestal of crankshaft base upper end In be placed with a bearing, bearing lower end is abutted by crankshaft base and is fixed, and oil groove is additionally provided in crankshaft base, passes through bearing and oil Slot can reduce the contact area between crankshaft and crank channel, reduce frictional force, reduce crankshaft and crank channel is worn, increase Service life, and the energy consumed when use can be substantially reduced.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the structural schematic diagram of cylinder block in Fig. 1.

In figure: 1 pedestal, 2 cylinder blocks, 3 crankshaft bases, 4 crankshaft slots, 5 bearing grooves, 6 bearings, 7 anticollison blocks, 8 pillars, 9 sealings Ring, 10 crank channels, 11 oil grooves, 12 fixing grooves, 13 packings, 14 diversion pipes, 15 airflow channels, 16 cylinder block pedestals, 17 pads Piece, 18 heat-insulation chambers.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1 to Fig. 2 is please referred to, the utility model provides a kind of technical solution: a kind of split type crankshaft of refrigeration compressor Case, including pedestal 1, cylinder block 2 and crankshaft base 3,1 upper end of pedestal right side formed by integrally casting has a fixing groove 12, in fixing groove 12 Bottom penetrates two screw holes of setting, and a cylinder block 2 is placed in fixing groove 12, and 2 lower end of cylinder block is cylinder block pedestal 16, 2 two sides of cylinder block are protruded at 16 both ends of cylinder block pedestal, are penetrated and are equipped with and 12 bottom of fixing groove on the cylinder block pedestal 16 of protrusion The corresponding screw hole of screw hole, and cylinder block 2 is fixed in fixing groove 12 by fixing bolt, is opened inside cylinder block 2 Equipped with through-hole, it is fixedly connected with one layer of packing 13 in through-hole, is formed in packing piece diversion pipe 14 of 13 inside grafting, diversion pipe 14 Airflow channel 15,1 right side upper end of pedestal are welded with two groups of anticollison blocks 7, and lower end is welded with two groups of pillars 8, pedestal 1 on the right side of pedestal It is intermediate it is integrally formed be equipped with a crankshaft slot 4,4 bottom of crankshaft slot penetrates one through-hole of setting, and through-hole bottom forms one Bearing groove 5 is fixedly connected with a bearing 6 in bearing groove 5, and 1 lower end of pedestal is fixedly connected with a crankshaft base 3 by fixing bolt, Bearing 6 is abutted among 3 upper end of crankshaft base, 3 upper end of crankshaft base it is integrally formed be equipped with a circle sealing ring 9, in 1 lower end of pedestal Equipped with seal groove corresponding with sealing ring 9, in one layer of gasket of junction fixed bonding of crankshaft base 3 and pedestal 1, crankshaft base 3 It is cylindrical, a bearing groove 5 corresponding with the bearing groove 5 of 1 lower end of pedestal is equipped with 3 lower end of crankshaft base is also integrally formed, It is fixedly connected with a bearing 6 in the bearing groove 5, the hollow formation crank channel 10 of crankshaft base 3 offers on 10 inner wall of crank channel Oil groove 11.

Further, 2 end face of cylinder block is fixedly connected with one piece of gasket 17 by fixing bolt, penetrates setting among gasket 17 There is through-hole, the size of through-hole is more than or equal to the size of airflow channel 15, and less than the size of diversion pipe 14,17 4 jiaos of lower ends of gasket are set There is integrally formed pillar, formation heat-insulation chamber 18 between 2 end face of gasket 17 and cylinder block is supported on by pillar, gasket 17 can To reduce heat-conducting area, and the reduction heat-conducting effect of heat-insulation chamber 18 can be formed, increase the using effect of refrigeration compressor.

Further, in the shape of a spiral, 11 section semicircular in shape of oil groove can reduce crankshaft and crankshaft by oil groove to oil groove 11 Frictional force between channel 10 reduces abrasion, increases service life, reduces energy consumption.

Further, ceramic layer is equipped with inside diversion pipe 14,14 internal layer of diversion pipe is equipped with sound insulating pad, and outside is fixedly connected with one Layer pvc pipe, is fixedly connected in packing 13 on the outside of pvc pipe, and it is cylindrical that packing 13 is fixedly connected on 2 inside of cylinder block, passes through Diversion pipe 14 can increase the efficiency that air-flow passes through and unobstructed degree, prevent 15 inner wall of airflow channel rough, production when air-flow passes through Raw loud noise.

Working principle: when work, cylinder block 2 is fixedly connected in fixing groove 12 by fixing bolt, then by bearing 6 are placed into bearing groove 5, and abut bearing 6 by crankshaft base 3 and fix it, then by fixing bolt that crankshaft base 3 is fixed In the lower end of pedestal 1, crankshaft base 3 is fixedly connected with one layer of gasket with 1 junction of pedestal, and is additionally provided with one on crankshaft base 3 Sealing ring 9 is enclosed, crankshaft base 3 and the junction of pedestal 1 can be sealed by sealing ring 9, oil leak be prevented, then in crankshaft It is fixedly connected with a bearing 3 in the bearing groove 2 of 3 lower ends of seat, frictional force can be reduced by bearing 3, increases crank rotation effect Rate, and abrasion can be reduced and increase service life, spiral helicine oil groove is additionally provided in the crank channel 10 inside crankshaft base 11, it can be further reduced friction area, one piece of gasket 17, gasket are fixedly connected with by fixing bolt in the end face of cylinder block 2 Heat-insulation chamber 18 is formed between 17 and cylinder block 2, and heat-conducting area can be reduced by heat-insulation chamber 18, increase the use of refrigeration compressor Effect.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (4)

1. a kind of split type crankcase of refrigeration compressor, including pedestal (1), cylinder block (2) and crankshaft base (3), feature exists In: it is equipped with a fixing groove (12) on the right side of pedestal (1) upper end, sets in the fixing groove (12) bottom there are two screw hole, A cylinder block (2) is placed in the fixing groove (12), cylinder block (2) lower end is cylinder block pedestal (16), the gas Cylinder block (2) two sides are protruded at cylinder seat pedestal (16) both ends, are equipped with and fixing groove (12) bottom on the cylinder block pedestal (16) of protrusion The corresponding screw hole of the screw hole in portion, and cylinder block (2) is fixed in fixing groove (12) by fixing bolt, in the cylinder It is equipped with through-hole inside seat (2), is fixedly connected with one layer of packing (13) in through-hole, is fixedly connected with one inside the packing (13) and leads Flow tube (14), the diversion pipe (14) is interior to form airflow channel (15), and upper end is welded with two groups of anticollison blocks on the right side of the pedestal (1) (7), lower end is welded with two groups of pillars (8) on the right side of the pedestal, and a crankshaft slot (4) is equipped among the pedestal (1), described Crankshaft slot (4) bottom is equipped with through-hole, and the through-hole bottom is equipped with a bearing groove (5), is fixedly connected in the bearing groove (5) One bearing (6), pedestal (1) lower end are fixedly connected with a crankshaft base (3) by fixing bolt, on the crankshaft base (3) End is intermediate to abut bearing (6), is equipped with circle sealing ring (9) in the crankshaft base (3) upper end, pedestal (1) lower end be equipped with it is close The corresponding seal groove of seal ring (9) is fixedly connected with one layer of gasket, the crankshaft base with the junction of pedestal (1) in crankshaft base (3) (3) cylindrical, a bearing groove corresponding with bearing groove (5) of pedestal (1) lower end also is provided in the crankshaft base (3) lower end (5), it is fixedly connected with a bearing (6) in the bearing groove (5), is equipped with crank channel (10) inside the crankshaft base (3), institute Crank channel (10) inner wall is stated equipped with oil groove (11).

2. a kind of split type crankcase of refrigeration compressor according to claim 1, it is characterised in that: the cylinder block (2) end face is fixedly connected with one piece of gasket (17) by fixing bolt, is equipped with through-hole among the gasket (17), the size of through-hole is big In be equal to airflow channel (15) size, be less than diversion pipe (14) size, gasket (17) the quadrangle lower end be equipped with one at The pillar of shape is supported on formation heat-insulation chamber (18) between gasket (17) and cylinder block (2) end face by pillar.

3. a kind of split type crankcase of refrigeration compressor according to claim 1, it is characterised in that: the oil groove (11) In the shape of a spiral, oil groove (11) section semicircular in shape.

4. a kind of split type crankcase of refrigeration compressor according to claim 1, it is characterised in that: the diversion pipe (14) internal to be equipped with ceramic layer, diversion pipe (14) internal layer is equipped with sound insulating pad, and outside is fixedly connected with one layer of pvc pipe, and pvc pipe outside is solid Surely it is connected in packing (13), it is internal cylindrical that the packing (13) is fixedly connected on cylinder block (2).