CN205578492U

CN205578492U - Rotary compressor is bearing for cylinder

Info

Publication number: CN205578492U
Application number: CN201620010596.8U
Authority: CN
Inventors: 庄希平; 林国富; 郑贺
Original assignee: NINGBO YONGWEI GROUP CO Ltd
Current assignee: NINGBO YONGWEI GROUP CO Ltd
Priority date: 2016-01-07
Filing date: 2016-01-07
Publication date: 2016-09-14
Anticipated expiration: 2026-01-07

Abstract

Rotary compressor is bearing for cylinder, including compressor inner core, outer loop, the inner core is the metal, and the outer loop is plastics, and the elongator on the inner core outer lane passes the outer loop. It includes following step still to provide its manufacturing method: (The inner core of required shape and size one), is prepared out with the metal, (It obtains rotary compressor is bearing for cylinder two), to regard as mould core and plastics to mould plastics into an organic whole the inner core again. The utility model has the advantages of: 1, because rotary compressor is bearing for cylinder's outer loop be plastics, its density far is less than the metal, so the weight of whole bearing can alleviate by a wide margin, and then alleviates the compressor system and conducts oneself with dignity, 2, contrast metal material, the damping action of plastics is obvious, can effectually reduce the vibrations of compressor system and the noise that reduces from this to produce, 3, rotary compressor is bearing for cylinder moulds plastics integratively become through inner core and outer loop, it is very convenient consequently to make.

Description

Rotary compressor cylinder bearing

Technical field

This utility model relates to a kind of compressor part and manufacture method thereof.

Background technology

Rotary compressor, also known as rolling rotor compressor, it utilizes piston to rotate and is compressed refrigerant gas, is one of the most the most frequently used compressor.

The critical piece of rotary compressor is compression assembly, and it includes cylinder, the piston being arranged in cylinder, drives piston to make the eccentric crankshaft of eccentric rotary, the slide plate being arranged in the vane slot of cylinder and for supporting the bearing of bent axle；Its exhaust apparatus includes the bearing valve seat being arranged on base bearing and is arranged on the exhaust valve plate in bearing valve seat, spring and stop；Bearing seat bottom portion is provided with valve seat steam vent, and valve seat steam vent is arranged above spacing hole；Exhaust valve plate is undertaken in valve seat steam vent, and slides up and down along the axis direction of spacing hole；Stop is positioned at above exhaust valve plate, and fixing with spacing hole inwall is connected；Spring is crimped between exhaust valve plate and stop.

Rotary compression machine bearing is separately positioned on cylinder both sides, and because of the inner cavity surface that one side is cylinder of bearing, it needs to bear environment under high pressure, and bearing is all made of metal the most for a long time, and its weight is big, and vibrations are big, noise is big and price is higher.

Summary of the invention

Technical problem to be solved in the utility model is to overcome the above-mentioned deficiency of prior art to provide a kind of rotary compressor cylinder bearing so that it is can alleviate compressor assembly weight, reduce vibration, reduce noise.

This utility model additionally provides the manufacture method of a kind of rotary compressor cylinder bearing, makes that bearing mnanufacture is simple, low cost.

The technical scheme that the above-mentioned technical problem of this utility model solution is used is:

Rotary compressor cylinder bearing, it is characterised in that: including compressor inner core, outer shroud, inner core is metal, and outer shroud is plastics, and the elongator on inner core outer ring passes outer shroud.

Preferably, above-mentioned outer shroud and inner core are molded into one, the most more convenient making.

Preferably, described plastics are selected from one or several of following composition: polyamide-based, polyesters, polyethers, TPO, heteroaromatic class, fluorinated polymer, polymer matrix composites and their derivant.

Preferably, above-mentioned inner core outer ring is rough surface, and such plastics are easier to be engaged with inner core, make to be not easily disconnected from therebetween.

The outer ring of above-mentioned inner core is additionally provided with groove, to increase plastics and inner core and outer interannular bonding force, prevents inner core and the disengaging of outer interannular.

This utility model accordingly provides the manufacture method of rotary compressor cylinder bearing, and it comprises the steps:

(1) inner core of required form and size, is prepared with metal；

(2), again inner core is obtained rotary compressor cylinder bearing as mold core with plastic injection is integral.

Above-mentioned injection temperature is 100-300 DEG C.

Compared with prior art, the utility model has the advantage of:

1, being plastics due to the outer shroud of rotary compressor cylinder bearing, its density is much smaller than metal, therefore the weight of whole bearing can significantly alleviate, and then alleviates compressor assembly deadweight.

2, contrast metal material, the damping action of plastics is obvious, can effectively reduce the vibrations of compressor assembly and reduce consequent noise.

3, rotary compressor cylinder bearing is molded into one by inner core and outer shroud, therefore manufactures very convenient.

Accompanying drawing explanation

Fig. 1 is the configuration diagram of this utility model embodiment rotary compressor cylinder bearing.

Fig. 2 is the left view of this utility model embodiment rotary compressor cylinder bearing.

Detailed description of the invention

Below in conjunction with accompanying drawing embodiment, this utility model is described in further detail.

As shown in Figure 1 and Figure 2, rotary compressor cylinder bearing, including inner core 2, outer shroud 1, inner core 2 is made up of metal material, outer shroud 1 is plastics, and whole bearing through outer shroud 1, so can be fixed on the cylinder baffle of compressor by elongator 21 by inner core by the elongator 21 on its outer ring.

In the present embodiment, elongator 21 is cylinder, and quantity is three, arranges along inner core 2 even circumferential.

Shape and the quantity of elongator 21 is changed also dependent on practical situation.

In another embodiment, the outer ring of inner core 2 is rough surface (being not drawn in figure), just can more firmly be bonded on inner core 2 during such plastic injection, and therefore outer shroud 1 and inner core 2 can be closely linked, and is difficult to disengage.

Certainly, the outer ring of inner core 2 can also arrange groove, or make its other structures shaggy, can play and just can more firmly be bonded on inner core 2 when making plastic injection.

This utility model has also correspondingly provided the manufacture method of above-mentioned rotary compressor cylinder bearing, and it comprises the steps:

(1) inner core of required form and size, is prepared with metal；

(2), again that inner core is integral with plastic injection as mold core, obtain rotary compressor cylinder bearing.

In said method, the temperature of injection is 100-300 DEG C, so that it may produce qualified cold rotary compressor cylinder bearing.

Claims

1. rotary compressor cylinder bearing, it is characterised in that: including compressor inner core, outer shroud, inner core is metal, and outer shroud is plastics, and the elongator on inner core outer ring passes outer shroud.

2. rotary compressor cylinder bearing as claimed in claim 1, it is characterised in that: described outer shroud and inner core are molded into one.

3. rotary compressor cylinder bearing as claimed in claim 1 or 2, it is characterised in that: the inner surface of described inner core outer ring is rough surface.

4. rotary compressor cylinder bearing as claimed in claim 1 or 2, it is characterised in that: the outer peripheral surface of described inner core is provided with groove.