A method for measuring the lift of a compressor exhaust valve plate, a valve plate assembly and a compressor

Abstract

The present invention provides a method for measuring the lift of a compressor exhaust valve plate, a valve plate assembly and a compressor, which relates to the technical field of compressor production and manufacturing. The method for measuring the lift of the compressor exhaust valve plate in the present invention has simple assembly and measurement operations, and the cost of the measurement tooling is relatively low. The measurement can be completed by cooperating with a measuring ruler. By assembling the valve plate assembly with the measurement tooling, the assembly state of the valve plate assembly assembled on the compressor can be realistically simulated. The lift of the exhaust valve plate in the assembled state can be directly and accurately measured by the measuring ruler, providing data support for the design optimization of the valve plate assembly part of the compressor. The valve plate assembly uses the method for measuring the lift of the compressor exhaust valve plate in the present invention to measure the lift of the exhaust valve plate. The lift of the exhaust valve plate on the valve plate assembly is accurately measured. When the measured lift of the exhaust valve plate meets the standard, the measured valve plate assembly is assembled to the compressor, and the lift of the exhaust valve plate still meets the standard. In this way, the yield rate of the compressor is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of compressor production and manufacturing, and particularly relates to a method for measuring the lift of a compressor exhaust valve plate, a valve plate assembly, and a compressor. Background Art

[0002] During the operation of a compressor, the air flow pressure and air flow velocity at the air suction and exhaust ports of the valve plate change in real time. Due to different lifts of the exhaust valve plate on the valve plate, the change in valve port pressure loss is also different. Therefore, studying the influence of the lift of the exhaust valve plate on the dynamic characteristics of the valve plate is beneficial to reducing the valve port pressure loss and improving the air suction efficiency of the compressor. In addition, with different lifts of the exhaust valve plate, the impact velocity corresponding to the limit plate is also different. Studying the influence of the lift on the reliability of the valve plate also has guiding significance.

[0003] Currently, after the exhaust valve plate is assembled, there is no simple and convenient method in the industry for measuring the lift of the exhaust valve plate. It is often measured by means of an internal displacement sensor, which has a large difficulty in equipment transformation, a relatively complex measurement process, and a high cost investment. In addition to measuring by means of a displacement sensor and other methods, the industry generally only makes a rough calculation of the lift, estimating it by subtracting the thickness of the exhaust valve plate and the exhaust valve spring plate from the limit height of the limit plate. And for the deformation amount of the limit plate after the cylinder head is fastened, since it cannot be measured, it is generally ignored, resulting in a large error between the calculated lift and the actual lift, and unable to truly reflect the actual lift of the exhaust valve plate in the assembled state. Summary of the Invention

[0004] The purpose of the present invention is to provide a method for measuring the lift of a compressor exhaust valve plate to accurately measure the lift of the exhaust valve plate in the assembled state.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] A method for measuring the lift of a compressor exhaust valve plate, which applies a measuring tooling. The measuring tooling includes a pressure head seat, a pressing plate, and a fastener;

[0007] The inner end surface of the pressure head seat has the same shape as the assembly surface of the cylinder head of the compressor of the simulated set model, and valve plate pressing ribs and limit plate pressing ribs are provided on the inner end surface of the pressure head seat;

[0008] The inner end surface of the pressing plate has the same shape as the assembly surface of the cylinder block of the compressor of the simulated set model, and through holes are provided on the pressing plate;

[0009] The method includes the following steps:

[0010] Step 1: Assemble the valve plate assembly to the measuring tooling

[0011] The valve plate assembly is matched with the compressor of the simulated set model. The valve plate assembly includes a valve plate, an exhaust valve sheet, and a limit plate. Grooves are provided on the surface of the valve plate, and valve holes are provided in the grooves. The exhaust valve sheet is located in the grooves, the exhaust valve sheet covers the valve holes, and the limit plate is assembled and connected to the grooves;

[0012] Place the valve plate assembly between the pressure head seat and the pressing plate. One end face of the valve plate abuts against the inner end face of the pressure head seat, so that the valve plate pressing rib abuts against the valve plate, and the limit plate pressing rib abuts against the limit plate. The other end face of the valve plate abuts against the inner end face of the pressing plate, and the pressure head seat, the valve plate assembly, and the pressing plate are assembled into one body through fasteners;

[0013] Step 2: Use a measuring ruler to measure the lift of the exhaust valve sheet

[0014] Pass the measuring ruler through the through hole on the pressing plate. When the measuring ruler contacts the exhaust valve sheet, the length value reading is L1. When the measuring ruler pushes the exhaust valve sheet to contact the limit plate, the length value reading is L2. Then the difference between L1 and L2 is the lift of the exhaust valve sheet.

[0015] Preferably, a through hollow cavity is provided between the inner end face and the outer end face of the pressure head seat, and the valve plate pressing rib and the limit plate pressing rib are located in the hollow cavity;

[0016] In step 1, when one end face of the valve plate abuts against the inner end face of the pressure head seat, the operator views and adjusts the fit between the valve plate and the pressure head seat through the hollow cavity from the outer end face of the pressure head seat, so that the valve plate pressing rib abuts against the valve plate and the limit plate pressing rib abuts against the limit plate.

[0017] Preferably, the fastener is set as a fastening screw. A plurality of screw holes are provided at the edge position of the inner end face of the pressure head seat, a plurality of first positioning holes are provided at the edge position of the valve plate, and a plurality of second positioning holes are provided at the edge position of the pressing plate;

[0018] In step 1, the fastening screw sequentially passes through the second positioning hole and the first positioning hole and is assembled into the screw hole to realize that the fastener assembles the pressure head seat, the valve plate assembly, and the pressing plate into one body.

[0019] Preferably, in step 1, the valve plate assembly further includes an exhaust valve spring sheet, and the exhaust valve spring sheet is assembled between the exhaust valve sheet and the limit plate;

[0020] In step 2, when the measuring ruler pushes the exhaust valve sheet and the exhaust valve spring sheet to contact the limit plate, the length value reading is L2.

[0021] Preferably, the measuring ruler is set as a micrometer or a vernier caliper.

[0022] A valve plate assembly, and the valve plate assembly measures the lift of the exhaust valve sheet by using the above-mentioned measuring method for the lift of the compressor exhaust valve sheet.

[0023] A compressor, the compressor includes a cylinder head and a cylinder block, and the above-mentioned valve plate assembly is arranged between the cylinder head and the cylinder block.

[0024] The beneficial technical effects of the present invention are:

[0025] The method for measuring the lift of the exhaust valve disc of the compressor of the present invention has simple assembly and measurement operations, low cost of the measurement tooling, and can complete the measurement with a measuring ruler; by assembling the valve plate assembly with the measurement tooling to realistically simulate the assembly state of the valve plate assembly on the compressor, the lift of the exhaust valve disc in the assembled state can be directly and accurately measured by the measuring ruler, providing data support for the design optimization of the valve plate assembly part of the compressor; the valve plate assembly uses the method for measuring the lift of the exhaust valve disc of the compressor of the present invention to measure the lift of the exhaust valve disc, so that the lift of the exhaust valve disc on the valve plate assembly is accurately measured. When the lift of the exhaust valve disc meets the standard, the measured valve plate assembly is assembled to the compressor, and the lift of the exhaust valve disc still meets the standard. In this way, the yield rate of the compressor is improved. Description of the Drawings

[0026] Figure 1 It is a flow chart of the method for measuring the lift of the exhaust valve disc of the compressor in the embodiment of the present invention;

[0027] Figure 2 It is a three-dimensional view of assembling the valve plate assembly to the measurement tooling in the embodiment of the present invention Figure 1 ;

[0028] Figure 3 It is a three-dimensional view of assembling the valve plate assembly to the measurement tooling in the embodiment of the present invention Figure 2 ;

[0029] Figure 4 It is an exploded view of assembling the valve plate assembly to the measurement tooling in the embodiment of the present invention;

[0030] Figure 5 It is a front view of assembling the valve plate assembly to the measurement tooling in the embodiment of the present invention;

[0031] Figure 6 It is a rear view of assembling the valve plate assembly to the measurement tooling in the embodiment of the present invention;

[0032] Figure 7 It is an exploded view of the valve plate assembly in the embodiment of the present invention;

[0033] Figure 8 It is a front view of the pressure head seat in the embodiment of the present invention;

[0034] Figure 9 It is a front view of the pressing plate in the embodiment of the present invention. Detailed Embodiments

[0035] To make the objectives, technical solutions and beneficial effects of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. Some, but not all, of the embodiments of the present invention will be shown in more comprehensive description with reference to the accompanying drawings later. In fact, various embodiments of the present invention can be implemented in many different forms and should not be construed as limited to the embodiments described herein; rather, these embodiments are provided so that the present invention meets the applicable legal requirements.

[0036] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", "lower", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0037] In an embodiment of the present invention, a method for measuring the lift of a compressor exhaust valve plate is provided. Please refer to Figures 1 to 9 as shown.

[0038] A method for measuring the lift of a compressor exhaust valve plate, which applies a measuring tooling. The measuring tooling includes a pressure head seat 1, a pressing plate 2 and a fastener 3.

[0039] The inner end face of the pressure head seat 1 has the same shape as the assembly surface of the cylinder head of the compressor of the simulated set model. The inner end face of the pressure head seat 1 is provided with a valve plate pressing rib 11 and a limit plate pressing rib 12. Among them, a through hollow cavity 10 is provided between the inner end face and the outer end face of the pressure head seat 1, and the valve plate pressing rib 11 and the limit plate pressing rib 12 are located in the hollow cavity 10.

[0040] The inner end face of the pressing plate 2 has the same shape as the assembly surface of the cylinder block of the compressor of the simulated set model. A through hole 21 is opened on the pressing plate 2, and the position and aperture of the through hole 21 are the same as those of the cylinder hole of the cylinder block of the compressor of the simulated set model.

[0041] The fastener 3 is set as a fastening screw. A plurality of screw holes 13 are opened at the edge position of the inner end face of the pressure head seat 1, a plurality of first positioning holes 413 are opened at the edge position of the valve plate 41, and a plurality of second positioning holes 22 are opened at the edge position of the pressing plate 2.

[0042] The method includes the following steps:

[0043] Step 1: Assemble the valve plate assembly 4 to the measuring tooling

[0044] The valve plate assembly 4 is matched with the compressor of the simulated set model. The valve plate assembly 4 includes a valve plate 41, an exhaust valve disc 42, an exhaust valve reed 43 and a limit plate 44. A groove 411 is formed on the surface of the valve plate 41, and a valve hole 412 is formed in the groove 411. The exhaust valve disc 42 is located in the groove 411 and covers the valve hole 412. The limit plate 44 is assembled and connected to the groove 411, and the exhaust valve reed 43 is assembled between the exhaust valve disc 42 and the limit plate 44;

[0045] Place the valve plate assembly 4 between the press head seat 1 and the pressing plate 2. One end face of the valve plate 41 abuts against the inner end face of the press head seat 1, so that the valve plate pressing rib 11 abuts against the valve plate 41, and the limit plate pressing rib 12 abuts against the limit plate 44. The other end face of the valve plate 41 abuts against the inner end face of the pressing plate 2, and the press head seat 1, the valve plate assembly 4 and the pressing plate 2 are assembled into one body through fasteners.

[0046] When one end face of the valve plate 41 abuts against the inner end face of the press head seat 1, the operator views and adjusts the fit between the valve plate 41 and the press head seat 1 through the hollow cavity 10 from the outer end face of the press head seat 1, so that the valve plate pressing rib 11 abuts against the valve plate 41, and the limit plate pressing rib 12 abuts against the limit plate 44. In this way, the visual operation of the assembly of the "valve plate pressing rib 11 and the valve plate 41" and the "limit plate pressing rib 12 and the limit plate 44" is realized, and the fit is correct.

[0047] Among them, the fastening screw sequentially passes through the second positioning hole 22 and the first positioning hole 413 and is assembled into the screw hole 13, so as to realize that the fastener 3 assembles the press head seat 1, the valve plate assembly 4 and the pressing plate 2 into one body.

[0048] Step 2: Measure the lift of the exhaust valve disc with a measuring ruler

[0049] Pass the measuring ruler through the through hole 21 on the pressing plate 2. The length value reading when the measuring ruler contacts the exhaust valve disc 42 is L1, and the length value reading when the measuring ruler pushes the exhaust valve disc 42 and the exhaust valve reed 43 to contact the limit plate 44 is L2. Then the difference between L1 and L2 is the lift of the exhaust valve disc 42. Among them, the above measuring ruler is set as a micrometer or a vernier caliper.

[0050] A valve plate assembly, the valve plate assembly measures the lift of the exhaust valve disc by using the method for measuring the lift of the exhaust valve disc of the compressor in the above embodiment, so that the lift of the exhaust valve disc on the valve plate assembly is accurately measured. When the lift of the exhaust valve disc meets the standard during measurement, the measured valve plate assembly is assembled to the compressor, and the lift of the exhaust valve disc still meets the standard. In this way, the yield rate of the compressor is improved.

[0051] A compressor, the compressor includes a cylinder head and a cylinder block, and the above valve plate assembly is arranged between the cylinder head and the cylinder block.

[0052] So far, the present embodiment has been described in detail with reference to the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the method for measuring the lift of the exhaust valve plate of the compressor of the present invention. The method for measuring the lift of the exhaust valve plate of the compressor of the present invention has simple assembly and measurement operations, and the cost of the measurement tooling is relatively low. The measurement can be completed by cooperating with a measuring ruler. By assembling the valve plate assembly 4 with the measurement tooling, the assembly state of the valve plate assembly 4 assembled on the compressor can be realistically simulated. The lift of the exhaust valve plate 42 in the assembled state can be directly and accurately measured by the measuring ruler, providing data support for the design optimization of the valve plate assembly 4 part of the compressor. When the method for measuring the lift of the exhaust valve plate of the compressor of the present invention is used to measure the lift of the exhaust valve plate of the valve plate assembly, the lift of the exhaust valve plate on the valve plate assembly can be accurately measured. When the measured lift of the exhaust valve plate meets the standard, the measured valve plate assembly is assembled to the compressor, and the lift of the exhaust valve plate still meets the standard. In this way, the yield rate of the compressor can be improved.

[0053] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for measuring the lift of a compressor exhaust valve plate, characterized in that: Apply a measuring tooling, which includes a punch seat, a pressing plate and a fastener; The inner end face of the punch seat has the same shape as the assembly surface of the cylinder head of the compressor of the simulated set model, and valve plate pressing ribs and limit plate pressing ribs are arranged on the inner end face of the punch seat; The inner end face of the pressing plate has the same shape as the assembly surface of the cylinder block of the compressor of the simulated set model. Through holes are formed in the pressing plate, and the positions and diameters of the through holes are the same as those of the cylinder holes of the cylinder block of the compressor of the simulated set model; The method includes the following steps: Step 1: Assemble the valve plate assembly to the measuring tooling The valve plate assembly is matched with the compressor of the simulated set model. The valve plate assembly includes a valve plate, an exhaust valve sheet and a limit plate. Grooves are formed on the surface of the valve plate, valve holes are formed in the grooves, the exhaust valve sheet is located in the grooves, the exhaust valve sheet covers the valve holes, and the limit plate is assembled and connected to the grooves; Place the valve plate assembly between the punch seat and the pressing plate. One end face of the valve plate fits against the inner end face of the punch seat, so that the valve plate pressing rib abuts against the valve plate, the limit plate pressing rib abuts against the limit plate, and the other end face of the valve plate fits against the inner end face of the pressing plate. Assemble the punch seat, the valve plate assembly and the pressing plate into one body through the fastener; Step 2: Measure the lift of the exhaust valve sheet with a measuring ruler Pass the measuring ruler through the through hole on the pressing plate. The length value reading when the measuring ruler contacts the exhaust valve sheet is L1, and the length value reading when the measuring ruler pushes the exhaust valve sheet to contact the limit plate is L2. Then the difference between L1 and L2 is the lift of the exhaust valve sheet.

2. The method for measuring the lift of the exhaust valve sheet of a compressor according to claim 1, wherein: A through hollow cavity is arranged between the inner end face and the outer end face of the punch seat, and the valve plate pressing ribs and the limit plate pressing ribs are located in the hollow cavity; In step 1, when one end face of the valve plate fits against the inner end face of the punch seat, the operator views and adjusts the fit between the valve plate and the punch seat through the hollow cavity from the outer end face of the punch seat, so that the valve plate pressing rib abuts against the valve plate and the limit plate pressing rib abuts against the limit plate.

3. The method for measuring the lift of the exhaust valve sheet of a compressor according to claim 1, wherein: The fastener is set as a fastening screw. A plurality of screw holes are formed at the edge position of the inner end face of the punch seat, a plurality of first positioning holes are formed at the edge position of the valve plate, and a plurality of second positioning holes are formed at the edge position of the pressing plate; In step 1, the fastening screws sequentially pass through the second positioning holes and the first positioning holes and are assembled into the screw holes to realize that the fastener assembles the punch seat, the valve plate assembly and the pressing plate into one body.

4. The method for measuring the lift of the exhaust valve sheet of a compressor according to claim 1, wherein: In step 1, the valve plate assembly further includes an exhaust valve spring sheet, and the exhaust valve spring sheet is assembled between the exhaust valve sheet and the limit plate; In step 2, the length value reading when the measuring ruler pushes the exhaust valve sheet and the exhaust valve spring sheet to contact the limit plate is L2.

5. The method for measuring the lift of the exhaust valve sheet of a compressor according to claim 1, wherein: The measuring ruler is set as a micrometer or a vernier caliper.

6. A valve plate assembly, characterized in that: The valve plate assembly measures the lift of the exhaust valve plate by using the compressor exhaust valve plate lift measurement method described in any one of claims 1 to 5.

7. A compressor, characterized in that: The compressor includes a cylinder head and a cylinder block, and the valve plate assembly described in claim 6 is arranged between the cylinder head and the cylinder block.

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