Compressor valve plate

Abstract

The utility model relates to the technical field of valve piece, concretely is a kind of compressor valve piece, including valve piece body, the valve piece body is opened with multiple annular array distribution's air hole;Mounting groove is opened in valve piece body and is located between several air holes;Positioning column is set in the mounting groove by adjusting mechanism and is liftablely arranged.The utility model is adjusted by the adjusting mechanism formed by adjusting screw rod and thread groove, the height of positioning column is adjusted, so that the limiting function of positioning column top end can be recovered by adjusting after wear, solve the problem of valve piece overall scrapping and cost waste caused by positioning column wear in prior art.

Description

Technical Field

[0001] This utility model relates to the field of valve plate technology, specifically to a compressor valve plate. Background Technology

[0002] A compressor is a fluid machine that raises low-pressure gas to high-pressure gas. Its core working components include a cylinder, a piston, and a valve assembly that controls the inflow and outflow of gas. The valve plate is a key component in the valve assembly. It opens and closes periodically during the reciprocating motion of the piston to achieve unidirectional gas intake and discharge. Its sealing performance, reliability, and service life directly affect the compressor's working efficiency and operational stability.

[0003] In the prior art, in order to prevent the spring on the valve plate from shifting during high-speed reciprocating motion, a fixed positioning post is usually set on the valve plate. The positioning post is sleeved inside the lower part of the spring to play a radial limiting role.

[0004] However, due to long-term friction and impact with the spring, the top of the positioning post will gradually wear down. When the wear reaches a certain level, the height of the positioning post will be significantly reduced, and it will no longer be able to effectively limit the spring. At this time, the spring will be at risk of displacement or even dislocation, affecting the normal operation of the compressor. In this case, the entire valve plate assembly usually needs to be replaced during maintenance, resulting in unnecessary material waste and increased operating costs. Utility Model Content

[0005] The purpose of this invention is to provide a compressor valve plate to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A compressor valve plate, including

[0008] The valve plate body has multiple air holes arranged in a ring array on it;

[0009] The mounting groove is formed on the valve plate body and is located between several of the air holes;

[0010] The positioning column is vertically adjustable within the mounting slot via an adjustment mechanism.

[0011] Preferably, the adjustment mechanism includes a threaded groove formed on the inner wall below the mounting groove, and an adjustment screw threaded into the threaded groove, wherein the top end of the adjustment screw is fixedly connected to the bottom end of the positioning column;

[0012] Preferably, a positioning sleeve is fixedly connected to the valve plate body at the top position of each of the mounting slots, and an annular positioning groove is formed between the inner circumference of the positioning sleeve and the outer circumference of the positioning post.

[0013] Preferably, a shaft hole is formed through the middle of the valve plate body;

[0014] Preferably, the pores have an arc-shaped structure;

[0015] Preferably, the vent is an arc-shaped hole whose width gradually narrows towards the central axis of the shaft hole.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This compressor valve plate, by setting an adjustment mechanism consisting of an adjusting screw and a threaded groove, realizes the adjustable height of the positioning column. Thus, after the top of the positioning column is worn, its limiting function can be restored by adjustment, solving the problem of overall valve plate scrapping and cost waste caused by positioning column wear in the prior art. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the valve plate body of this utility model;

[0020] Figure 3 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0021] Figure 4 For the present utility model Figure 2 Enlarged diagram of point B in the middle.

[0022] In the diagram: 1. Valve plate body; 2. Air hole; 3. Mounting groove; 4. Positioning pin; 5. Threaded groove; 6. Adjusting screw; 7. Positioning sleeve; 8. Annular positioning groove; 9. Shaft hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-4 As shown, this utility model provides a technical solution:

[0025] A compressor valve includes a valve body 1 with multiple air holes 2 arranged in a ring array on the valve body 1. The air holes 2 are arc-shaped and their width gradually narrows towards the central axis of the shaft hole 9. The shaft hole 9 is opened through the middle of the valve body 1. A mounting groove 3 is opened on the valve body 1 and located between several air holes 2. A positioning post 4 is vertically and vertically disposed in the mounting groove 3 by an adjustment mechanism. The adjustment mechanism includes a threaded groove 5 opened on the inner wall below the mounting groove 3 and an adjusting screw 6 threadedly connected to the threaded groove 5. The top end of the adjusting screw 6 is fixedly connected to the bottom end of the positioning post 4. A positioning sleeve 7 is fixedly connected to the top position of each mounting groove 3 on the valve body 1. An annular positioning groove 8 is formed between the inner circumference of the positioning sleeve 7 and the outer circumference of the positioning post 4.

[0026] In this embodiment, by setting an adjustment mechanism consisting of an adjusting screw 6 and a threaded groove 5, the height of the positioning column 4 is adjustable, so that after the top of the positioning column 4 is worn, its limiting function can be restored by adjustment, thus solving the problem of overall scrapping of valve plate and cost waste caused by wear of positioning column 4 in the prior art.

[0027] Working principle: The compressor valve plate assembly is fixedly connected to the valve seat and valve cover by fastening bolts passing through the shaft hole 9, forming a static assembly. During operation, the valve plate body 1 rises upward against the spring force under the action of gas pressure difference to open the airflow channel. Gas flows directionally through the arc-shaped air holes 2, which are distributed in a ring array and whose width gradually narrows towards the central axis of the shaft hole 9. Subsequently, it falls back to the valve seat under the action of spring reset to achieve sealing closure. When the top of the positioning column 4 wears down to be flush with or close to flush with the upper surface of the valve plate body 1 due to long-term use, making it unable to effectively limit the spring, the adjusting screw 6 is screwed in, causing it to move upward in the threaded groove 5 at the bottom of the mounting groove 3, thereby pushing the spring. The positioning pin 4, which is fixedly connected to the top of the valve plate, is raised together with the valve plate in the mounting groove 3. This raises the unworn lower part of the positioning pin 4 and exposes it above the upper surface of the valve plate body 1, thereby re-establishing a height that can be used for limiting. During this process, the outer circumferential surface of the raised positioning pin 4 is embedded in the inner ring of the spring, while the positioning sleeve 7, which is fixed to the valve plate body 1, constrains the outer ring of the spring with its inner circumferential surface, thus jointly restoring the dual positioning function of the spring. This adjustment mechanism directly compensates for the wear of the top of the positioning pin 4, allowing the valve plate to continue to be used even after partial wear, significantly extending its service life and avoiding the cost waste caused by replacing the entire valve plate due to partial wear.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A compressor valve plate, characterized in that: include The valve body (1) has multiple air holes (2) arranged in a ring array. The mounting groove (3) is formed on the valve plate body (1) and located between several of the air holes (2); The positioning column (4) is vertically and vertically mounted in the mounting groove (3) via an adjustment mechanism; The adjustment mechanism includes a threaded groove (5) opened on the inner wall below the mounting groove (3), and an adjustment screw (6) threadedly connected to the threaded groove (5). The top end of the adjustment screw (6) is fixedly connected to the bottom end of the positioning column (4).

2. A compressor valve plate according to claim 1, characterized in that: A positioning sleeve (7) is fixedly connected to the top of each mounting groove (3) on the valve body (1), and an annular positioning groove (8) is formed between the inner circumference of the positioning sleeve (7) and the outer circumference of the positioning post (4).

3. A compressor valve plate according to claim 2, characterized in that: The valve body (1) has a through hole (9) in the middle.

4. A compressor valve plate according to claim 1, characterized in that: The pores (2) are arc-shaped structures.

5. A compressor valve plate according to claim 3, characterized in that: The air hole (2) is an arc-shaped hole whose width gradually narrows towards the central axis of the shaft hole (9).

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