CN210799288U

CN210799288U - Valve component for compressor and compressor

Info

Publication number: CN210799288U
Application number: CN201921394449.5U
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 member for compressor, including cylinder cap, gasket, lift stopper, cross cab apron and valve plate, wherein, the valve plate facial make-up is equipped with suction valve piece and discharge valve piece, and the valve plate is installed on the cylinder cap through crossing the cab apron, and the gasket is installed at the cylinder cap and is crossed between the cab apron, and the appearance of gasket and the opening cross-section adaptation of cylinder cap cross the cab apron facial make-up and are equipped with spacing hole, the appearance and the lift stopper adaptation in spacing hole, and be equipped with a support rib in the cylinder cap, support rib's terminal surface is less than the terminal surface of cylinder cap. The utility model discloses an adopt and set up the support rib in the cylinder cap to make the terminal surface of supporting the rib be less than the terminal surface of cylinder cap, the cooperation sets up spacing hole on crossing the cab apron, utilizes the appearance and the lift stopper appearance adaptation in spacing hole, thereby can realize the location and the locking of lift stopper, avoids leading to hardly guaranteeing the precision that the valve plate is used for holding the lift stopper because of machining error, makes the spacing stroke of design change uncontrollable, influences the performance problem of compressor.

Description

Valve component for compressor and compressor

Technical Field

The utility model relates to a compressor spare part technical field, more specifically relates to a valve member and compressor for compressor.

Background

The compressor is one of the most important components of the existing refrigeration system, and sucks low-temperature and low-pressure refrigerant gas from a gas suction pipe, drives a piston to compress the refrigerant gas through the operation of a motor, and discharges the high-temperature and high-pressure refrigerant gas to an exhaust pipe to provide power for a refrigeration cycle, thereby realizing the refrigeration cycle of compression-condensation-expansion-evaporation. The compressor generally consists of a shell, a motor, a cylinder, a piston, control equipment (a starter and a thermal protector) and a cooling system.

Have three pressure point to be used for compressing tightly lift stopper middle part on current cylinder head, however, because current lift stopper is thinner, when the assembly height of lift stopper on the valve plate is higher than the design value, middle strong point can compress tightly lift stopper middle part, produce elastic deformation, make the spacing stroke of lift stopper design diminish, and receive the influence of exhaust duct degree of depth and lift stopper processing error itself, design spacing stroke change uncontrollable, thereby direct influence exhaust valve piece switching stroke, consequently, just influenced the performance of compressor.

As disclosed in chinese patent publication No. CN205089566U, a cylinder head assembly and a compressor having the same, the cylinder head assembly includes: the cylinder cap, it has the open cavity of one end to inject in the cylinder cap, is equipped with on the terminal surface of cylinder cap one end along its circumference extension's sealed muscle, valve plate, the valve plate with the end that opens of cylinder cap links to each other and sealed muscle ends the valve plate, be equipped with the lift stopper on the valve plate, it stretches out to be equipped with at least some on the cylinder cap the portion of ending of cavity, end the portion of ending and compress tightly the both ends of lift stopper. According to the utility model discloses a cylinder head subassembly has guaranteed the airtight of compressor through set up the sealed muscle of circumference on the terminal surface to guaranteed the refrigeration capacity of compressor, through set up in the cylinder cap and stop the portion of supporting, stop the portion of supporting can end and compress tightly the lift stopper, thereby make the discharge valve piece of cylinder head subassembly can not produce and rock, guaranteed compressor refrigeration capacity and noise stability.

Although the sealing effect is improved well, in the actual processing process, the structure of the lift limiter is relatively complex due to the influence of the precision of the existing processing technology, the processing error is relatively large, the valve plate needs double-sided grinding, the precision of the valve plate for accommodating the lift limiter is difficult to ensure, the change of the designed limit stroke is not controllable, and the opening and closing stroke of the exhaust valve plate is directly influenced, so that the performance of the compressor is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a simple structure, can effectively ensure valve member and compressor that are used for compressor of the stroke of the lift stopper of design under current processing condition to solve above-mentioned technical problem.

According to the utility model discloses an aspect provides a valve member for compressor, include cylinder cap, gasket, lift stopper, cross cab apron and valve plate, the valve plate facial make-up is equipped with suction valve piece and discharge valve piece, the valve plate is installed through crossing the cab apron on the cylinder cap, the gasket is installed the cylinder cap with cross between the cab apron, the appearance of gasket with the opening cross-section adaptation of cylinder cap, cross the cab apron facial make-up and be equipped with spacing hole, the appearance of spacing hole with lift stopper adaptation, just be equipped with a support rib in the cylinder cap, the terminal surface that supports the rib is less than the terminal surface of cylinder cap, the bottom face of lift stopper supports support the rib with on the boundary surface of cylinder cap, the end face block is decided of lift stopper is in spacing downthehole.

Preferably on the basis of the scheme, the transition plate comprises a plate body, wherein a hole body and a limiting hole are arranged on the plate body, the hole body corresponds to the air suction hole in the valve plate, the limiting hole comprises an upper accommodating hole close to one side end face of the valve plate and a positioning hole close to one side end face of the gasket, the appearance of the accommodating hole is matched with the appearance of the exhaust valve plate, and the sectional area of the accommodating hole is larger than that of the exhaust valve plate.

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 edge 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 end face on one side of the hole body close to 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 also provides a compressor, include as a valve member for compressor.

The utility model discloses a valve member for compressor sets up the support rib through adopting in the cylinder cap to make the terminal surface of supporting the rib be less than the terminal surface of cylinder cap, the cooperation sets up spacing hole on crossing the cab apron, utilizes the appearance and the lift stopper appearance adaptation in spacing hole, thereby can realize the location and the locking of lift stopper, avoids leading to hardly guaranteeing the precision that the valve plate is used for holding the lift stopper because of machining error, makes the spacing stroke of design change uncontrollable, influences the performance problem of compressor.

Drawings

Fig. 1 is an exploded view of the valve block components of the low loss compressor of the present invention;

FIG. 2 is an exploded view of the valve plate of the present invention;

FIG. 3 is a perspective view of a lift stop of the present invention;

fig. 4 is a perspective view of the transition plate of the present invention;

fig. 5 is another exploded view of the valve train components of the low loss compressor 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 in combination with fig. 5, the present invention provides a valve assembly for a compressor, including a cylinder cover 600, a gasket 700, a lift stop 500, a transition plate 400 and a valve plate, wherein the valve plate is provided with a suction valve plate and a discharge valve plate 20, the valve plate is installed on the cylinder cover 600 through the transition plate 400, the gasket 700 is installed between the cylinder cover 600 and the transition plate 400, the shape of the gasket 700 is adapted to the opening cross section of the cylinder cover 600, the transition plate 400 is provided with a limit hole 42, the shape of the limit hole 42 is adapted to the lift stop 500, a support rib 610 is provided in the cylinder cover 600, the end surface of the support rib 610 is lower than the end surface of the cylinder cover 600, the bottom end surface of the lift stop 500 is supported on the boundary surface of the support rib 610 and the cylinder cover 600, and the fixed end surface of the lift stop 500 is clamped in the limit.

Please continue to refer to fig. 5, the cylinder head 600 of the present invention is defined with a cavity with an open end, a sealing rib extending along the axial direction is disposed on the end surface of one end of the cylinder head 600, the transition plate 400 is connected with the open end of the cylinder head 600 through the gasket 700 in a sealing manner, the sealing rib is supported on the valve plate, the inner edge surface of the sealing rib near one side of the suction hole extends inward to form a supporting rib 610, and the end surface of the supporting rib 610 is lower than the end surface of the cylinder head 600.

Please refer to fig. 4, the transition plate 400 of the present invention is provided with a hole 41 and a limiting hole 42 corresponding to the suction hole on the valve plate, the limiting hole 42 is corresponding to the lift stop 500, and the limiting hole 42 of the present invention includes an upper receiving hole 43 near a side end surface of the valve plate and a positioning hole 44 near a side end surface of the gasket 700, the shape of the receiving hole 43 is adapted to the shape of the exhaust valve plate 20, and the sectional area of the receiving hole 43 is larger than the sectional area of the exhaust valve plate 20, so as to ensure that one end of the exhaust valve plate 20 can vibrate in the receiving hole 43, thereby realizing the opening or closing of the exhaust valve plate 20.

For further explaining the technical solution of the present invention in detail, please continue to refer to fig. 3, the lift stop 500 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.

During installation, one end of the horizontal bottom of the lift limiter 500 is abutted to the end face of the support rib 610, the other end of the horizontal bottom of the lift limiter 500 is abutted to the edge of the sealing rib of the cylinder cover 600, and the side, opposite to the horizontal plane, of the lift limiter 500, namely the side in the shape of the ladder is embedded into the positioning hole 44 and is fixedly locked through the connection effect of the valve plate, the transition plate 400, the base plate and the cylinder cover 600.

Compared with the prior art, the utility model discloses a lift stopper 500 adopts installation department 56 to combine together with spacing 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 design through segmental arc 53, not only can improve lift stopper 500's life, and can make exhaust valve block 20 lie in when lift stopper 500 acts on, the atress is gentler, improve lift stopper 500's atress effect, the working condition of exhaust valve block 20 has been improved, the steam generator is simple in structure reasonable, realize easily, improve compressor efficiency.

And because the structure of the lift limiter 500 is improved, and the structure is simpler, so that in the processing process of the transition plate 400, the structure for positioning and installing the lift limiter 500 on the transition plate 400 is simpler, namely, only one positioning hole 44 needs to be processed on the transition plate 400, so that the positioning can be completed, the processing precision can be effectively ensured, the processing error is avoided, and the problem that the design lift of the compressor is uncontrollable is caused.

Meanwhile, in cooperation with the positioning design on the cylinder cover 600, because the bottom of the lift limiter 500 is horizontal, the traditional three-point positioning is changed into two-point positioning support, so that the deformation of the middle part of the traditional lift limiter 500 and the cylinder cover 600 during interaction is avoided, the designed limit stroke of the lift limiter 500 is reduced, and the opening and closing stroke of the exhaust valve plate 20 is influenced, so that the performance of the compressor is influenced.

The utility model discloses a through set up locating hole 44 on one side inner fringe face in spacing hole 42, utilize locating hole 44's effect can realize lift stopper 500's quick location and installation, avoid its installation to have an error, lead to all the other crack volumes too big, and influence the efficiency of compressor.

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 edge surface of the positioning hole 44. In the installation process, the step surface 45 can be abutted against the horizontal section 55 of the lift limiter 500, so that the lift limiter 500 can be quickly positioned and installed.

Preferably, the positioning hole 44 is matched with the profile of the lift limiter 500, and the step surface 45 is attached to the horizontal section 55. The utility model discloses a hole body 41 is close to the terminal surface of suction opening one side is circular, 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 the oval-shaped sectional area, and hole body 41 is the step hole.

As shown in fig. 2, the exhaust valve plate 20 of the present invention includes a connecting end 11 connected to the valve plate 30 and a movable end 12 corresponding to the exhaust hole 32 on the valve plate 30, wherein the connecting end 11 and the movable end 12 are connected by an arc to form a structure with two wide ends and a narrow middle. Therefore, when the gas acts on the suction valve plate 20 or the exhaust valve plate 20, the free end of the suction valve plate 20 or the exhaust valve plate 20 can deform under the condition of small stress, and the free end and the valve plate 30 can open or close.

Referring to fig. 2, the connecting end 11 of the present invention is rectangular, and two ends of the connecting end 11 are provided with grooves 13 corresponding to the positioning holes 33. When the exhaust valve plate is installed, the exhaust valve plate 20 and the valve plate 30 can be quickly positioned and installed through the positioning holes 33 and the grooves 13.

As shown in fig. 2, the suction valve plate 20 of the present invention includes a connecting end 21 connected to the valve plate 30 and a movable end 22 corresponding to the suction hole 31 of the valve plate 30, wherein the connecting end 21 and the movable end 22 are connected by an arc to form a structure with two wide ends and a narrow middle. The utility model discloses a link 21 be the rectangle form, and the both ends of link 21 be equipped with the recess 23 that locating hole 33 corresponds. The structural design of the suction valve plate 20 is similar to the design principle of the discharge valve plate 20, and is not described herein again.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.

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 member for compressor, its characterized in that includes cylinder cap, gasket, lift stopper, crosses cab apron and valve plate, the valve plate facial make-up is equipped with suction valve piece and discharge valve piece, the valve plate is installed through crossing the cab apron on the cylinder cap, the gasket is installed the cylinder cap with cross between the cab apron, the appearance of gasket with the opening cross-section adaptation of cylinder cap, cross the cab apron facial make-up and be equipped with spacing hole, the appearance in spacing hole with lift stopper adaptation, just be equipped with a support rib in the cylinder cap, the terminal surface of support rib is less than the terminal surface of cylinder cap, the bottom face support of lift stopper is in support rib with on the boundary surface of cylinder cap, the fixed end face block of lift stopper is in spacing downthehole.

2. The valve assembly for a compressor according to claim 1, wherein the limiting hole includes an upper receiving hole adjacent to one side end surface of the valve plate and a positioning hole adjacent to one side end surface of the gasket, the receiving hole has a shape adapted to a shape of the discharge valve plate, and a sectional area of the receiving hole is larger than a sectional area of the discharge valve plate.

3. The valve assembly for a compressor of claim 2, wherein the lift stopper includes an installation part and a limit part, the installation part is connected to the limit part, and the bottom of the installation part is horizontal to the bottom of the limit part, the top of the limit part includes a connection section, an arc section and a horizontal section, the connection section is connected to the top surface of the installation part and is located on the same horizontal plane, the start end of the arc section is lower than the horizontal plane of the connection section, the arc section is connected to the connection section through a connection section, and the horizontal section is connected to the end of the arc section.

4. A valve assembly for a compressor according to claim 3, wherein the positioning hole has a shape matching the shape of the receiving hole, and a stepped surface for positioning is provided at an inner edge surface of the positioning hole.

5. The valve assembly for a compressor of claim 4, wherein the positioning hole is adapted to a shape of the lift stopper, and the step surface is fitted to the horizontal section.

6. The valve assembly for a compressor according to claim 5, wherein the transition plate further has a hole body, 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 cross-sectional area of the circular shape is smaller than a cross-sectional area of the elliptical shape, and the hole body is a stepped hole.

7. A compressor, comprising a valve assembly for a compressor according to any one of claims 1 to 6.