阅读说明：本技术 压缩机滑片的设计方法以及采用该方法设计的产品 (Design method of compressor sliding vane and product designed by the method ) 是由 程剑国 丁学超 李旺宏 于 2019-08-26 设计创作，主要内容包括：本发明提供了压缩机滑片的设计方法以及采用该方法设计的产品,涉及电器技术领域,解决了滑片与滚子的易磨损问题和开发成本高的问题,提出系数<Image he="126" wi="87" file="DDA0002178803090000011.GIF" imgContent="drawing" imgFormat="GIF" orientation="portrait" inline="no"></Image>和系数<Image he="126" wi="86" file="DDA0002178803090000012.GIF" imgContent="drawing" imgFormat="GIF" orientation="portrait" inline="no"></Image>用以评价压缩机的滚子和滑片磨损,指导压缩机开发时滑片的尺寸设计和材质的选择,其中,dt为曲轴外圆与滚子内圆间隙,Aa为滚子外圆与滑片头部之间的表观接触面积,ω为滚子的自转转速,所述系数<Image he="123" wi="82" file="DDA0002178803090000013.GIF" imgContent="drawing" imgFormat="GIF" orientation="portrait" inline="no"></Image>和所述系数<Image he="124" wi="67" file="DDA0002178803090000014.GIF" imgContent="drawing" imgFormat="GIF" orientation="portrait" inline="no"></Image>的数值根据预先设定的磨损量要求确定。通过该方法设计的产品可避免滚子和滑片头部磨损,能提高压缩机可靠性,减小开发成本。(The invention provides a design method of a sliding vane of a compressor and a product designed by the method, relates to the technical field of electric appliances, solves the problems of easy abrasion of the sliding vane and a roller and high development cost, and provides a coefficient Sum coefficient the method is used for evaluating abrasion of a roller and a slip sheet of a compressor and guiding size design and material selection of the slip sheet during development of the compressor, wherein dt is a gap between an excircle of a crankshaft and an inner circle of the roller, Aa is an apparent contact area between the excircle of the roller and a head of the slip sheet, omega is the rotation speed of the roller, and the coefficient is And the coefficient The value of (c) is determined according to a predetermined wear requirement. The product designed by the method can avoid the abrasion of the roller and the sliding vane head, improve the reliability of the compressor and reduce the development cost.)

1. The design method of the sliding vane of the compressor is characterized in that: coefficient of presentationSum coefficientThe method is used for evaluating abrasion of a roller and a slip sheet of a compressor and guiding size design and material selection of the slip sheet during development of the compressor, wherein dt is a gap between an excircle of a crankshaft and an inner circle of the roller, Aa is an apparent contact area between the excircle of the roller and a head of the slip sheet, omega is the rotation speed of the roller, and the coefficient isAnd the coefficientThe value of (c) is determined according to a predetermined wear requirement.

2. The design method of compressor vane of claim 1, wherein: the coefficientAnd the coefficientFrom the formula of wearRelation with eccentric friction moment of roller and crankshaftto obtain wherein F_μ＝μ×F_NWherein K is the wear factor; f_μIs a friction force; l is a sliding distance; aa is the apparent contact area between the roller excircle and the slide sheet head; h is the surface strength of the material; μ is the friction factor; f_NIs a normal load; n is₁The revolution speed is a fixed value; omega is the rotation speed of the roller; re is the eccentric circle radius; le is the eccentric circle length.

3. The design method of compressor vanes of claim 2, wherein: when the slide size is determined, the coefficientAnd the coefficientsWhen the sliding sheet is a steel sliding sheet.

4. The design method of compressor vanes of claim 2, wherein: when the slide size is determined, the coefficientAnd the coefficientsWhen the sliding sheet is a steel sliding sheet subjected to nitriding treatment; or when said coefficient isAnd the coefficientsWhen the sliding sheet is a steel sliding sheet processed by PVD.

5. The design method of compressor vanes of claim 2, wherein: the preset abrasion loss requirement value is represented by an abrasion formulaThus obtaining the product.

6. The design method of compressor vanes of claim 2, wherein: the value of Aa is represented by the formula Aa＝l*h₁Calculated, in the formula: h is₁Is the height of the sliding sheet, l is the arc length of the head part of the sliding sheet, and l is represented by the formulaCalculated by a formulaCalculated, in the formula: r is the outer radius of the roller; r is the arc radius of the sliding sheet head; h is₁Is the height of the sliding sheet; and e is the eccentricity.

7. The design method of compressor vane of any one of claim 2, wherein: by adjusting the coefficientSum coefficientThe numerical range of (1) is selected from the sliding sheet material and coefficientSum coefficientthe numerical range of (a) is adjusted by changing one or more of the arc radius R of the slide head, the height h1 of the slide, the thickness h2 of the slide and the radius R of the outer circle of the roller.

8. A slider, characterized in that: the design method of the compressor sliding vane of any one of claims 1 to 7 is adopted.

9. A compressor, characterized by: comprising an assembled cylinder (1), crankshaft (2), roller (3) and slide (4), said slide (4) being a slide according to claim 8.

10. An air conditioner, characterized in that: comprising the compressor of claim 9.

Technical Field

The invention relates to the technical field of electric appliances, in particular to a design method of a sliding vane of a compressor and a product designed by the method.

Background

the requirement on product quality is higher and higher, including the compressor industry, and the reliability evaluation research of the compressor is mostly limited to the matching reliability research of a shaft system and a shaft system, few researches are conducted on sliding sheets and rollers, and the research means is limited. The sliding vane in rotary compressor is a part installed inside cylinder slot, capable of sliding freely and contacting with roller always under the action of spring force to separate the closed cavity formed by cylinder and roller into suction cavity and exhaust cavity. The sliding sheet is in high-speed contact with the roller, local abrasion easily occurs in a contact area, a large number of tests are needed to verify the abrasion conditions of the roller and the sliding sheet in the development process of the compressor so as to avoid the occurrence of the local abrasion between the sliding sheet and the roller in use, but the long-term test confirmation is often needed, and the cost and the time consumption are huge.

Disclosure of Invention

the invention aims to design a design method of a sliding vane of a compressor and a product designed by the method, which can avoid abrasion of a roller and the head part of the sliding vane, improve the reliability of the compressor and reduce the development cost.

The invention is realized by the following technical scheme:

The invention provides a design method of a sliding vane of a compressor, which is realized by providing a coefficientSum coefficientUsed for evaluating the abrasion of the roller and the sliding vane of the compressor and guiding the size design and the material of the sliding vane during the development of the compressorSelecting the quality, wherein dt is the gap between the outer circle of the crankshaft and the inner circle of the roller, Aa is the apparent contact area between the outer circle of the roller and the head of the sliding sheet, omega is the rotation speed of the roller, and the coefficient isAnd the coefficientThe value of (c) is determined according to a predetermined wear requirement.

Further, the coefficientsAnd the coefficientFrom the formula of wearRelation with eccentric friction moment of roller and crankshaftTo obtain wherein F_μ＝μ×F_NWherein K is the wear factor; f_μIs a friction force; l is a sliding distance; aa is the apparent contact area between the roller excircle and the slide sheet head; h is the surface strength of the material; μ is the friction factor; f_NIs a normal load; n is₁The revolution speed is a fixed value; omega is the rotation speed of the roller; re is the eccentric circle radius; le is the eccentric circle length.

Further, the coefficient is determined when the slip size is determinedAnd the coefficientsWhen the sliding sheet is a steel sliding sheet.

Further, the coefficient is determined when the slip size is determinedAnd the coefficientsWhen the sliding sheet is a steel sliding sheet subjected to nitriding treatment; or when said coefficient isAnd the coefficientsWhen the sliding sheet is a steel sliding sheet processed by PVD.

Further, the preset abrasion amount requirement value is represented by an abrasion formulaThus obtaining the product.

Further, the value of Aa is represented by the formula Aa ═ l × h₁Calculated, in the formula: h is₁Is the height of the sliding sheet, l is the arc length of the head part of the sliding sheet, and l is represented by the formulacalculated by a formulaCalculated, in the formula: r is the outer radius of the roller; r is the arc radius of the sliding sheet head; h is₁Is the height of the sliding sheet; and e is the eccentricity.

Further, by adjusting the coefficientSum coefficientThe numerical range of (1) is selected from the sliding sheet material and coefficientSum coefficientThe numerical range of (a) is adjusted by changing one or more of the arc radius R of the slide head, the height h1 of the slide, the thickness h2 of the slide and the radius R of the outer circle of the roller.

furthermore, the invention also provides a sliding vane which is obtained by adopting the design method of the sliding vane of the compressor.

Furthermore, the invention provides a cylinder rotor assembly, which comprises an assembled cylinder, a crankshaft, a roller and a slide sheet, wherein the arc length of the head part of the slide sheet is l, and the slide sheet is made of materials with the size according to the coefficientSum coefficientDetermined structural component, said coefficientAnd the coefficientThe value of (c) is determined according to a predetermined wear requirement.

when the structure is adopted, the sliding vane in the air cylinder rotor assembly is according to the coefficientSum coefficientDetermining the material and size of the slide sheet according to the coefficientSum coefficientThe determined size and material can realize the roller sliding of the compressor at the beginning of designThe abrasion condition evaluation between the sheets can know the selection of the size and the material of the parts when the compressor is developed, can avoid the abrasion of the roller and the head part of the sliding sheet, can improve the reliability of the compressor, and can also reduce the test cost and save the design time.

In order to further better implement the invention, the following arrangement structure is particularly adopted: when the structure of the cylinder rotor assembly is determined, when the coefficient is determinedAnd the coefficientsWhen the sliding sheet is a steel sliding sheet.

In order to further better implement the invention, the following arrangement structure is particularly adopted: when the structure of the cylinder rotor assembly is determined, when the coefficient is determinedAnd the coefficientsWhen the sliding sheet is a steel sliding sheet subjected to nitriding treatment.

In order to further better implement the invention, the following arrangement structure is particularly adopted: when the structure of the cylinder rotor assembly is determined, when the coefficient is determinedAnd the coefficientsWhen the sliding sheet is a steel sliding sheet processed by PVD.

In order to further better implement the invention, the following arrangement structure is particularly adopted: when the sliding sheet is a steel sliding sheet, the structural size relation among the sliding sheet, the crankshaft and the roller conforms to the coefficientAnd conform to the coefficient

In order to further better implement the invention, the following arrangement structure is particularly adopted: when the sliding sheet is a steel sliding sheet subjected to nitriding treatment, the structural size relation of the sliding sheet, the crankshaft and the roller conforms to a coefficientAnd conform to the coefficient

In order to further better implement the invention, the following arrangement structure is particularly adopted: when the slip sheet is a steel slip sheet processed by PVD, the structural size relation of the slip sheet, the crankshaft and the roller conforms to a coefficientAnd conform to the coefficient

In order to further better implement the invention, the following arrangement structure is particularly adopted: dt is a gap between the outer circle of the crankshaft and the inner circle of the roller, Aa is an apparent contact area between the outer circle of the roller and the head of the slip sheet, and ω is the rotation speed of the roller.

The invention provides a compressor which comprises the cylinder rotor assembly.

When the structure is adopted, the sliding vane in the air cylinder rotor assembly is according to the coefficientSum coefficientDetermining the material and size of the slide sheet according to the coefficientSum coefficientThe method has the advantages that the abrasion condition evaluation between the roller sliding vanes of the compressor can be realized at the beginning of design by determining the size and the material, the selection of the size and the material of parts during the development of the compressor can be known, the abrasion of the roller and the head parts of the sliding vanes can be avoided, the reliability of the compressor can be improved, the test cost can be reduced, and the design time can be saved.

The invention provides an air conditioner which comprises the compressor.

When the structure is adopted, the sliding vane in the air cylinder rotor assembly is according to the coefficientSum coefficientDetermining the material and size of the slide sheet according to the coefficientSum coefficientThe method has the advantages that the abrasion condition evaluation between the roller sliding vanes of the compressor can be realized at the beginning of the design by determining the size and the material, the selection of the size and the material of parts during the development of the compressor can be known, the abrasion of the roller and the head parts of the sliding vanes can be avoided, the reliability of the compressor can be improved, the test cost can be reduced, the design time can be saved, and the development cost of the air conditioner can be reduced.

The invention has the following advantages and beneficial effects:

In the invention, the sliding vane in the cylinder rotor assembly is based on the coefficientSum coefficientdetermining the material and size of the slide sheet according to the coefficientSum coefficientthe method has the advantages that the abrasion condition evaluation between the roller sliding vanes of the compressor can be realized at the beginning of the design by determining the size and the material, the selection of the size and the material of parts during the development of the compressor can be known, the abrasion of the roller and the head parts of the sliding vanes can be avoided, the reliability of the compressor can be improved, the test cost can be reduced, the design time can be saved, and the development cost of the air conditioner can be reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of the slider-roller contact area;

FIG. 2 is a schematic front view of a slider;

FIG. 3 is a side view schematic of a slider;

FIG. 4 is a roller rotational speed chart;

FIG. 5 is a graph of slider to roller contact force;

labeled as:

1-a cylinder; 2-a crankshaft; 3-a roller; 4-a slip sheet; 5-a slide groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.