CN210799292U

CN210799292U - Valve plate reinforcing plate

Info

Publication number: CN210799292U
Application number: CN201921395317.4U
Authority: CN
Inventors: 曹礼建
Original assignee: Huangshi Nimet Technology Development Co ltd
Current assignee: Anhui Huadan Machinery Manufacturing Co ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-06-19
Anticipated expiration: 2029-08-26

Abstract

The utility model discloses a valve plate reinforcing plate for install between the gasket of the valve plate of compressor and cylinder head, the package rubbing board body is equipped with the hole body and the spacing hole that correspond with the suction opening on the valve plate on the plate body, and spacing hole includes the last accommodation hole that is close to valve plate side end face and is close to the locating hole on a gasket side end face, the appearance of accommodation hole and the appearance adaptation of discharge valve piece, and the sectional area of accommodation hole is greater than the sectional area of discharge valve piece. The utility model discloses an install between valve plate and cylinder cap to the life of valve plate is guaranteed to the intensity of reinforcing valve plate, avoids suction valve block and discharge valve block on the valve plate when the motion, leads to the valve plate to warp, influences the problem of the efficiency of compressor. Through with setting up on the valve plate reinforcing plate with spacing hole, through set up the locating hole on the disc in one side in spacing hole, the effect through the locating hole can realize quick location and the installation of lift stopper, avoids its installation to have the error, leads to all the other clearance volumes too big, and influences the efficiency of compressor.

Description

Valve plate reinforcing plate

Technical Field

The utility model relates to a compressor spare part field, more specifically relates to a valve plate reinforcing plate.

Background

The reciprocating piston refrigeration compressor drives the crank connecting rod mechanism to push the piston to reciprocate through the operation of the motor in work, and the suction and exhaust valve sheets in the valve bank are opened and closed intermittently under the action of the piston to suck and discharge refrigerant continuously, so that refrigeration is realized. Among the various factors that affect the efficiency of the compressor, volumetric efficiency is a very important one. In the factors that determine the volumetric efficiency of the compressor, the clearance volume, i.e. the residual volume formed between the end of the piston and the valve plate after the piston has reached top dead center, is very important. The smaller the clearance volume, the smaller the gas volume occupied by the re-expansion of the residual gas upon inspiration, and the higher the volumetric efficiency. In a compressor employing an integral suction valve plate structure, the gap between the reed portion of the suction valve plate and the support region forms part of the clearance volume. The gap is often dimensioned very small in order to reduce the clearance volume of this section as much as possible, which however leads to increased material costs and processing difficulties for the suction valve plate.

At present, the existing valve group adopts a structure of a concave valve plate or a thick steel plate, so that the processing manufacturability of the concave valve group is poor, and the leakage rate of the assembled valve group is higher; meanwhile, the adoption of a thick steel plate can increase the clearance volume and reduce the performance of the compressor. In order to reduce the problem of overlarge clearance volume caused by the thickness of the valve plate, in the chinese patent application CN201020271475.1, a valve set of a refrigerator compressor is provided, which is composed of a valve plate gasket, an air inlet valve plate, a steel valve plate, an exhaust valve plate, a cylinder cover gasket and a cylinder cover. The valve plate gasket, the air inlet valve plate, the steel piece valve plate, the exhaust valve plate, the cylinder cover gasket and the cylinder cover are sequentially stacked from bottom to top. The air inlet valve piece and the air outlet valve piece are both provided with movable valve pieces and are of integral structures. The steel valve plate of the refrigerator compressor valve bank is pressed by a thin steel plate, the processing technology is simple, the clearance volume is small, and the refrigerating capacity of the compressor is improved.

Although the thickness of the valve plate is reduced to a certain extent in the patent, so as to achieve the purpose of reducing the clearance volume, in actual use, the thickness of the valve plate is reduced, so that the strength of the valve plate is weakened, and the exhaust valve plate or the suction valve plate can drive the valve plate to deform in the reciprocating process, so that the using effect of the valve plate is affected.

SUMMERY OF THE UTILITY MODEL

The utility model provides a simple structure, can guarantee the valve plate reinforcing plate of the life of valve block under the volumetric prerequisite of reduction clearance to solve above-mentioned technical problem.

According to the utility model discloses an aspect provides a valve plate reinforcing plate for install between the gasket of the valve plate of compressor and cylinder head, which comprises a plate body, be equipped with spacing hole on the plate body and with the hole body that suction hole on the valve plate corresponds, spacing hole is including being close to the last accommodation hole of valve plate side end face with be close to locating hole on the gasket side end face, the appearance of accommodation hole and the appearance adaptation of discharge valve piece, just the sectional area of accommodation hole is greater than the sectional area of discharge valve piece.

Preferably on the basis of the scheme, still installed the lift stopper on the cylinder head, the lift stopper includes installation department and spacing portion, the installation department with spacing portion links to each other, just the bottom of installation department with spacing portion bottom is the level form, the top of spacing portion includes linkage segment, segmental arc and horizontal segment, the linkage segment with the top surface of installation department links to each other and is in same horizontal plane, the initiating terminal of segmental arc is less than the horizontal plane of linkage segment, the segmental arc with the linkage segment links to each other through linking up the section, the horizontal segment with the end of segmental arc links to each other.

On the basis of the scheme, preferably, the shape of the positioning hole is matched with that of the accommodating hole, and a step surface for positioning is arranged on the inner circular surface of the positioning hole.

Preferably, on the basis of the scheme, the positioning hole is matched with the lift limiter in shape, and the step surface is attached to the horizontal section.

Preferably on the basis of the scheme, the hole body is close to the end face on one side of the air suction hole is circular, the hole body is close to the end face on one side of the cylinder cover is oval, the circular sectional area is smaller than the oval sectional area, and the hole body is a step hole.

The utility model discloses a valve plate reinforcing plate is through installing between valve plate and cylinder cap to the life of valve plate is guaranteed to the intensity of reinforcing valve plate, avoids simultaneously suction valve block and the discharge valve block on the valve plate when the motion, leads to the valve plate to warp, influences the problem of the efficiency of compressor.

Meanwhile, the utility model discloses a valve plate reinforcing plate, through with setting up on the valve plate reinforcing plate with spacing hole, through set up the locating hole on the disc in one side in spacing hole, the effect through the locating hole can realize the quick location and the installation of lift stopper, avoids its installation to have the error, leads to all the other gaps volume too big, and influences the efficiency of compressor.

Drawings

Fig. 1 is a perspective view of the valve plate reinforcing plate according to the present invention in a first state;

FIG. 2 is a perspective view of the valve plate reinforcing plate of the present invention in a second state;

fig. 3 is a bottom view of the valve plate reinforcing plate of the present invention;

FIG. 4 is a perspective view of a lift stop of the present invention;

fig. 5 is a side view of a lift stop of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Please refer to fig. 1, and shown in fig. 2 and fig. 3, the utility model relates to a valve plate reinforcing plate for install between the gasket of the valve plate of compressor and cylinder cap, including plate body 40, be equipped with hole body 41 and spacing hole 42 that correspond with the suction opening on the valve plate on the plate body 40, spacing hole 42 corresponds the setting with the lift stopper, just the utility model discloses a spacing hole 42 including be close to the last accommodation hole 43 of valve plate side end face and be close to the locating hole 44 on a gasket side end face, the appearance of accommodation hole 43 and the appearance adaptation of discharge valve piece, and the sectional area of accommodation hole 43 is greater than the sectional area of discharge valve piece to guarantee that the one end of discharge valve piece can vibrate in accommodation hole 43, realize opening or being closed of discharge valve piece.

Meanwhile, the utility model discloses a valve plate reinforcing plate, through with valve plate reinforcing plate on set up with spacing hole 42, through set up locating hole 44 on the disc in one side of spacing hole 42, the effect through locating hole 44 can realize the quick location and the installation of lift stopper, avoids its installation to have an error, leads to all the other gaps volume too big, and influences the efficiency of compressor.

For further explaining the technical solution of the present invention in detail, please continue to refer to fig. 4 and 5, the lift stopper of the present invention includes an installation portion 56 and a limiting portion 51, the installation portion 56 is connected to the limiting portion 51, and the bottom of the installation portion 56 is horizontal with the bottom of the limiting portion 51, the top of the limiting portion 51 includes a connection segment 52, an arc segment 53 and a horizontal segment 55, the connection segment 52 is connected to the top surface of the installation portion 56 and is located at the same horizontal plane, the start end of the arc segment 53 is lower than the horizontal plane of the connection segment 52, the arc segment 53 is connected to the connection segment 52 through a connection segment 54, and the horizontal segment 55 is connected to the end of the arc segment 53.

The utility model discloses a lift stopper, compare with the lift stopper that the compressor used among the prior art, adopt installation department 56 to combine together with spacing portion 51, its structure is simpler, and adopt linkage segment 52, link up section 54, segmental arc 53 and horizontal segment 55 combine together, utilize the transition of linking up section 54, realize the horizontal drop between linkage segment 52 and segmental arc 53, form installation restriction location structure, and through segmental arc 53's design, not only can improve the life of lift stopper, and can make the discharge valve block lie in the lift stopper when acting, the atress is gentler, improve the atress effect of lift stopper, the working condition of discharge valve block has been improved, its simple structure is reasonable, easy realization, improve compressor efficiency.

It should be noted that the shape of the positioning hole 44 of the present invention is adapted to the shape of the receiving hole 43, and a step surface 45 for positioning is provided at the inner circular surface of the positioning hole 44. In the installation process, the lift limiter can be quickly positioned and installed through the matching of the step surface 45 and the horizontal section 55 of the lift limiter.

Preferably, the positioning hole 44 is matched with the lift limiter in shape, and the step surface 45 is attached to the horizontal section 55. The utility model discloses a terminal surface that hole body 41 is close to suction hole one side is circularly, and the terminal surface that hole body 41 is close to cylinder cap one side is oval, and the circular shape sectional area is less than oval-shaped sectional area, and hole body 41 is the step hole to be the injection form after making gas get into, make gas to fill in the cylinder cap, improve its work efficiency.

Finally, the method of the present application is only a preferred embodiment and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a valve plate reinforcing plate for install between the gasket of the valve plate of compressor and cylinder head, a serial communication port, which comprises a plate body, be equipped with spacing hole on the plate body and with the hole body that suction hole on the valve plate corresponds, spacing hole is including being close to last accommodation hole of valve plate a side end face with be close to locating hole on the gasket a side end face, the appearance of accommodation hole and the appearance adaptation of discharge valve piece, just the sectional area of accommodation hole is greater than the sectional area of discharge valve piece.

2. The valve plate reinforcing plate of claim 1, wherein the cylinder head is further provided with a lift stopper, the lift stopper comprises a mounting portion and a limiting portion, the mounting portion is connected with the limiting portion, the bottom of the mounting portion is horizontal to the bottom of the limiting portion, the top of the limiting portion comprises a connecting section, an arc-shaped section and a horizontal section, the connecting section is connected with the top surface of the mounting portion and is located on the same horizontal plane, the starting end of the arc-shaped section is lower than the horizontal plane of the connecting section, the arc-shaped section is connected with the connecting section through a connecting section, and the horizontal section is connected with the tail end of the arc-shaped section.

3. A valve plate reinforcing plate according to claim 2, wherein the positioning hole has an outer shape matching the outer shape of the receiving hole, and a stepped surface for positioning is provided at an inner circumferential surface of the positioning hole.

4. The valve plate reinforcing plate of claim 3, wherein the positioning hole is adapted to the outer shape of the lift stopper, and the step surface is fitted to the horizontal section.

5. The valve plate reinforcing plate according to claim 1, wherein an end surface of the hole body on a side close to the suction hole is circular, an end surface of the hole body on a side close to the cylinder head is elliptical, a sectional area of the circular shape is smaller than a sectional area of the elliptical shape, and the hole body is a stepped hole.