CN206111472U - Fixed knot of stopper constructs for compressor - Google Patents

Abstract

The utility model discloses a fixed knot of stopper constructs for compressor, including valve plate, stopper, exhaust piece, cylinder head, cylinder head gasket and connecting bolt, during the stopper will exhaust the recess that the piece compressed tightly on the valve plate to establish, cylinder head gasket assembled between valve plate and cylinder head, valve plate, stopper, exhaust piece, cylinder head and cylinder cap gasket pass through connecting bolt to be connected, and two departments of middle part and afterbody with the stopper behind the connecting bolt pretension compress tightly, cylinder head gasket last with the stopper head correspond compress tightly regionally and the cylinder head does not contact. Adopt the utility model discloses fixed knot constructs can both reduce the valve plate deformation under the prerequisite that does not influence discharge valve piece reliability, improved the valve plate leakproofness again to the performance and the work efficiency of compressor have been guaranteed.

Description

A kind of fixed structure of refrigeration compressor stop

Technical field

This utility model is related to the totally enclosed type freezer compressor of art of refrigeration units, specifically a kind of refrigeration pressure The fixed structure of contracting machine stop.

Background technology

At present, the fixed form of stop used by totally-enclosed reciprocating compressor of refrigerator is typically using riveting or cylinder head It is fixed.Being between stop 4 and steel valve plate 7 shown in Fig. 1 passes through the fixed form that rivet 6 is riveted, but uses steel The compressor efficiency of valve plate 7 is generally below using the compressor efficiency of powder metallurgy valve plate.Shown in Fig. 2 and Fig. 3 is powder smelting The fixed form that golden valve plate 3 is compressed using cylinder head 1.As shown in Fig. 2 cylinder head 1 compresses stop 4 with cylinder head gasket 2 Head B, middle part C and afterbody D, 3 stress deformation of which valve plate are big, and sealing is poor, while affecting cylinder-bore distortion, aggravation is lived Plug abrasion.And the structure shown in Fig. 3 only by cylinder head 1 compress stop 4 middle part E fix, although valve plate 3 deform it is little, but The fixation of aerofluxuss piece 5 is have impact on, the reliability of aerofluxuss piece 5 cannot be guaranteed.

The content of the invention

Technical problem to be solved in the utility model is that proposition is a kind of in the premise for not affecting exhaust valve plate reliability Under, valve plate deformation can be both reduced, the fixed structure of the refrigeration compressor stop of valve plate sealing can have been improved again.

To solve above-mentioned technical problem, a kind of fixed structure of refrigeration compressor stop of this utility model includes valve The aerofluxuss piece is pressed on described by plate, stop, aerofluxuss piece, cylinder head, cylinder head gasket and connecting bolt, the stop On valve plate in set groove, the cylinder head gasket is assemblied between the valve plate and the cylinder head；It is the valve plate, spacing Device, aerofluxuss piece, cylinder head and gland shim are connected by the connecting bolt, by the stop after the connecting bolt pretension Middle part and afterbody two at compress；Compression region corresponding with the stop head and the cylinder in the cylinder head gasket Lid does not contact.

The fixed structure of above-mentioned a kind of refrigeration compressor stop, with the stop head in the cylinder head gasket Corresponding region forms breach.

This utility model as a result of above-mentioned technical pattern, it on the premise of exhaust valve plate reliability is not affected, both Valve plate deformation being reduced, valve plate sealing being improved again, so as to ensure that the performance and work efficiency of compressor.

Description of the drawings

Fig. 1 is a kind of existing stop fixed structure schematic diagram；

Fig. 2 is existing another kind of stop fixed structure schematic diagram；

Fig. 3 is existing the third stop fixed structure schematic diagram；

Fig. 4 is the structural representation of stop used by this utility model fixed structure；

Fig. 5 is the schematic diagram of cylinder head gasket in this utility model fixed structure；

Fig. 6 is this utility model fixed structure schematic diagram；

Fig. 7 is the schematic diagram of this utility model fixed structure another embodiment.

Specific embodiment

As shown in Figure 6 and Figure 7, the fixed structure of this utility model refrigeration compressor stop includes valve plate 3, stop Aerofluxuss piece 5 is pressed on the groove set by valve plate 3 by the 4th, aerofluxuss piece 5, cylinder head 1, cylinder head gasket 2 and bolt 11, stop 4 In, cylinder head gasket 2 is assemblied between valve plate 3 and cylinder head 1.

As shown in figure 4, stop 4 includes head 8, middle part 9 and afterbody 10.

As shown in figure 5, forming breach 12 with the region corresponding to the head 8 of stop 4 in cylinder head gasket 2.Such as Fig. 7 institutes Show, valve plate 3, stop 4, aerofluxuss piece 5, cylinder head 1 and cylinder head gasket 2 are connected by bolt 11, realize after 11 pretension of bolt In the middle part of stop 9 with 10 liang of afterbody place compression（F、G）.The structure can both reduce valve plate 3 and deform, and can improve valve plate 3 again close Feng Xing.

Certainly, breach can not also be set with the region corresponding to the head 8 of stop 4 in cylinder head gasket 2, as long as cylinder Do not contact with 8 corresponding compression region of stop head on lid 1 and cylinder head gasket 2, as shown in A in Fig. 6.

Claims (2)

1. a kind of fixed structure of refrigeration compressor stop, including valve plate, stop, aerofluxuss piece, cylinder head, cylinder-top gasket Piece and connecting bolt, it is characterised in that the stop is pressed on the aerofluxuss piece in groove set on the valve plate, institute State cylinder head gasket to be assemblied between the valve plate and the cylinder head；The valve plate, stop, aerofluxuss piece, cylinder head and cylinder Lid gasket is connected by the connecting bolt, will be pressed after the connecting bolt pretension at the middle part of the stop and afterbody two Tightly；In the cylinder head gasket, compression region corresponding with the stop head and the cylinder head do not contact.

2. a kind of fixed structure of refrigeration compressor stop as claimed in claim 1, is characterized in that, the cylinder-top gasket On piece, region corresponding with the stop head forms breach.