阅读说明：本技术 一种圈销结构及具有其的涡旋压缩组件和涡旋压缩机 (Circle round pin structure and have its scroll compression subassembly and scroll compressor ) 是由 姬小伟 吕浩福 高照源 李凤 于 2019-10-09 设计创作，主要内容包括：本发明提供一种圈销结构及具有其的涡旋压缩组件和涡旋压缩机,涉及压缩机技术领域,解决了现有技术中存在的涡旋压缩机动盘的防自转的圈销结构对零部件的精度要求较高的技术问题。圈销结构包括内圈和定位销,所述内圈能沿所述定位销外壁做回转运动,其中,所述内圈的内壁和所述定位销的外壁均具有相互适配的锥度,当内圈和定位销的精度及其位置度等误差较大时,内圈内壁的锥度和定位销外壁的锥度仍能够保证二者之间在相配合的锥面上接触,进而保证动盘与静盘之间的配合,该结构能够对零部件的精度以及位置度的误差进行补偿,降低了涡旋压缩机动盘的防自转的圈销结构对零部件的加工精度要求。(The invention provides a ring pin structure, a scroll compression assembly with the ring pin structure and a scroll compressor, relates to the technical field of compressors, and solves the technical problem that the anti-rotation ring pin structure of a movable disc of the scroll compressor in the prior art has high precision requirements on parts. The circle pin structure includes inner circle and locating pin, the inner circle can be followed the rotary motion is to the locating pin outer wall, wherein, the inner wall of inner circle with the outer wall of locating pin all has the tapering of mutual adaptation, when the precision of inner circle and locating pin and its position degree isoparametric error are great, the tapering of inner circle inner wall and the tapering of locating pin outer wall still can guarantee to contact on the matched with conical surface between the two, and then guarantee the cooperation between movable plate and the quiet dish, this structure can compensate the precision of spare part and the error of position degree, has reduced the processing precision requirement of the circle pin structure of preventing the rotation of vortex compression maneuvering dish to spare part.)

1. The utility model provides a prevent circle round pin structure of rotation flexible compensation which characterized in that: the inner ring can rotate along the outer wall of the positioning pin, wherein the inner wall of the inner ring and the outer wall of the positioning pin are provided with mutually adaptive tapers.

2. The anti-spinning compliant compensation ring pin structure as defined in claim 1, wherein: the inclination angle of the section of the inner ring is phi 1, the included angle between the outer wall of the section of the positioning pin and the central line of the section of the positioning pin is phi 2, and phi 1 and phi 2 are complementary.

3. The anti-spinning compliant compensation ring pin structure as defined in claim 2, wherein: the angle of phi 1 is greater than 0 DEG and less than 90 deg.

4. The anti-spinning compliant compensation ring pin structure as defined in claim 1, wherein: the upper part of the positioning pin is an inverted cone, and the lower part of the positioning pin is a cylinder.

5. The anti-spinning compliant compensation ring pin structure as defined in claim 4, wherein: the surface roughness value of the outer conical surface of the inverted cone is smaller than that of the outer wall of the cylinder.

6. The anti-spinning compliant compensation ring pin structure as defined in claim 4, wherein: and the surface roughness value of the outer conical surface of the inverted cone is the same as that of the inner wall of the inner ring.

7. A scroll compression assembly characterized by: the autorotation-preventing flexible compensation ring pin structure comprises a fixed disc, a movable disc, a support and the autorotation-preventing flexible compensation ring pin structure as claimed in any one of claims 1 to 6, wherein the fixed disc is fixed on the support, the inner ring is embedded in the movable disc, and the movable disc is connected with a positioning pin fixed on the support through the inner ring.

8. A scroll compression assembly according to claim 7, wherein: the maximum radius of the inner circle of the inner ring is R1, the maximum radius of the positioning pin is R2, and the rotating radius R3 of the movable disc is R1-R2; the radius of the movable disc is R4, and the radius of the cavity of the fixed disc is R5 ═ R3+ R4.

9. A scroll compression assembly according to claim 7, wherein: an included angle phi between the tooth tail part of the movable disc and the center of the bracket in the horizontal direction is more than or equal to 0 degree and less than or equal to 180 degrees; the number of the anti-rotation flexible compensation ring pin structures on each scroll compression assembly is more than or equal to 2 and less than or equal to 12.

10. A scroll compressor characterized by: including a scroll compression assembly as claimed in any one of claims 7 to 9.

Technical Field

The invention relates to the technical field of compressors, in particular to a circle pin structure, a scroll compression assembly with the circle pin structure and a scroll compressor.

Background

The scroll compressor becomes the compressor type of first choice in present passenger car because its characteristics such as small, light in weight, efficient, and it is at the operation in-process, and the movable disk moves according to certain orbit, forms inclosed breathing in with quiet dish, compression, and the compression of air is realized to the exhaust chamber, and wherein the movable disk is rotary motion, and does not do the rotation, and the movable disk autogyration can lead to revealing in the compressor, power increase, noise rise. At present, a cross slip ring structure or a ring pin structure is arranged on a scroll compressor to prevent a movable disc from rotating, wherein the ring pin structure has high requirements on the processing precision of parts such as pins, pin holes and steel rings, so that the parts of the structure can be mutually matched, and the cost is high; when the precision of the structure is not up to standard, the movable disc can generate autorotation phenomenon, so that the capacity of the compressor is reduced, the noise is increased, and meanwhile, a steel ring arranged on the movable disc can shake, so that the noise of the compressor is larger; if the movable disc is tightly matched with the steel ring, the steel ring can be prevented from shaking, and the compressor is difficult to assemble; meanwhile, the steel ring and the pin in the ring pin structure are easy to wear due to small contact area, and further a series of problems of the operation of the scroll compressor are easy to cause.

Disclosure of Invention

The invention aims to provide a ring pin structure, a scroll compression assembly with the ring pin structure and a scroll compressor, and aims to solve the technical problem that the anti-rotation ring pin structure of a movable disc of the scroll compressor in the prior art has high precision requirements on parts.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides an anti-rotation flexible compensation ring pin structure which comprises an inner ring and a positioning pin, wherein the inner ring can rotate along the outer wall of the positioning pin, and the inner wall of the inner ring and the outer wall of the positioning pin are provided with mutually adaptive tapers.

Optionally, the inclination angle of the section of the inner ring is phi 1, the included angle between the outer wall of the section of the positioning pin and the center line of the section of the positioning pin is phi 2, and phi 1 and phi 2 are complementary.

Optionally, the angle φ 1 is greater than 0 and less than 90.

Optionally, the upper part of the positioning pin is an inverted cone, and the lower part of the positioning pin is a cylinder.

Optionally, the surface roughness value of the outer conical surface of the inverted cone is smaller than the surface roughness value of the outer wall of the cylinder.

Optionally, the surface roughness value of the outer conical surface of the inverted cone is the same as the surface roughness value of the inner wall of the inner ring.

The utility model provides a vortex compression assembly, includes price fixing, driving disk, support and above the circle round pin structure of preventing rotation flexible compensation, the price fixing is fixed in the support, the inner circle inlays to be located the driving disk, the driving disk passes through the inner circle with be fixed in locating pin on the support is connected.

Optionally, the maximum radius of the inner circle of the inner ring is R1, the maximum radius of the positioning pin is R2, and the revolving radius R3 of the movable disc is R1-R2; the radius of the movable disc is R4, and the radius of the cavity of the fixed disc is R5 ═ R3+ R4.

Optionally, an included angle phi between the tooth tail part of the movable disc and the center of the bracket in the horizontal direction is greater than or equal to 0 degree and less than or equal to 180 degrees; the number of the anti-rotation flexible compensation ring pin structures on each scroll compression assembly is more than or equal to 2 and less than or equal to 12.

A scroll compressor comprising a scroll compression assembly as hereinbefore described.

The invention provides an anti-rotation flexible compensation ring pin structure, which comprises an inner ring and a positioning pin, wherein the inner ring can rotate along the outer wall of the positioning pin, the inner wall of the inner ring and the outer wall of the positioning pin are provided with mutually adaptive tapers, when the precision, the position degree and other errors of the inner ring and the positioning pin are large, the taper of the inner wall of the inner ring and the taper of the outer wall of the positioning pin can still ensure that the inner ring and the positioning pin are in contact on matched conical surfaces, so that the matching between a movable disc and a static disc is ensured, the structure can compensate the precision and the position degree errors of parts, and the requirement of the anti-rotation ring pin structure of a movable disc of a scroll compressor on the processing precision of the parts is 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 structural diagram of an anti-rotation flexible compensation ring pin structure according to the present invention;

FIG. 2 is a schematic view of a prior art circlip configuration;

FIG. 3 is a schematic structural view of a scroll compression assembly;

FIG. 4 is a schematic illustration of the positional relationship of various components within the scroll compression assembly;

FIG. 5 is a schematic view of the mounting angle of the inner rotor plate of the scroll compression assembly.

Inner circle in figure 1; 2. positioning pins; 3. fixing a disc; 4. a movable plate; 5. a support; 6. a chamber; 7. a crankshaft; 8. an eccentric sleeve.

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.

The working principle of the existing scroll compressor is that, as shown in fig. 3, a crankshaft 7 rotates to drive an eccentric sleeve 8 to move, the eccentric sleeve 8 moves to simultaneously cooperate with an anti-rotation structure of a movable disk 4 to drive the movable disk 4 to do rotary motion relative to a static disk, and at the moment, a suction cavity and a compression cavity are formed between spiral teeth which do relative motion on the movable disk 4 and the static disk in a matching manner to further realize air compression. In the existing anti-rotation ring pin structure, as shown in fig. 2, the inner wall of the inner ring 1 and the outer wall of the positioning pin 2 do not have mutually adaptive tapers, the inner ring 1 and the positioning pin 2 are in parallel contact in the vertical direction, the contact surface between the two is also in the vertical direction, and each part and the position of the ring pin structure are realized by depending on the processing precision, so that the processing precision requirements of parts such as pin holes, steel rings and the like in the existing ring pin structure are high;

the invention provides an anti-rotation flexible compensation ring pin structure, as shown in figure 1, comprising an inner ring 1 and a positioning pin 2, wherein the inner ring 1 can rotate along the outer wall of the positioning pin 2, the inner wall of the inner ring 1 and the outer wall of the positioning pin 2 both have mutually adaptive conicity, when the precision, the position degree and other errors of the inner ring 1 and the positioning pin 2 are large, the conicity of the inner wall of the inner ring 1 and the conicity of the outer wall of the positioning pin 2 can still ensure the contact between the two on matched conical surfaces, so as to ensure the matching between a movable disc 4 and a static disc, the structure can compensate the precision and the position degree error of a part, reduce the processing precision requirement of the anti-rotation ring pin structure of the movable disc 4 of a scroll compressor on the part, and even reduce the processing precision of the part, the gap between the inner ring 1, the positioning pin 2 and the movable disc 4 can not be generated, the inner ring 1 cannot shake under the action of gas force, and the movable disc 4 can rotate to further cause leakage in the compressor due to poor contact between the positioning pin 2 and the inner ring 1; the steel ring can not shake, the noise is increased, the movable disc 4 and the steel ring can not be tightly matched when the matching size is smaller, the compressor is difficult to assemble, meanwhile, the production difficulty of parts is reduced due to the reduction of the precision, and the manufacturing cost is reduced; meanwhile, the structure can also well solve the problem that the position degree of the pin hole on the bracket 5 can be compensated through the structure even if the position degree of the pin hole has error;

furthermore, the inner wall of the inner ring 1 and the outer wall of the positioning pin 2 both have mutually adaptive tapers, and the technical characteristic is that as the contact surface between the inner ring 1 and the positioning pin 2 is inclined, the contact area between the inner ring 1 and the positioning pin 2 can be increased, and the degree of abrasion between the inner ring 1 and the positioning pin 2 can be reduced;

the material of the inner ring 1 and the positioning pin 2 is preferably steel.

As an optional implementation mode, the inclination angle of the section of the inner ring 1 is phi 1, the included angle between the outer wall of the section of the positioning pin 2 and the center line thereof is phi 2, and phi 1 and phi 2 are complementary.

The inclination angle phi 1 of the section of the inner ring 1 is complementary with the included angle phi 2 between the outer wall of the section of the positioning pin 2 and the central line of the section of the positioning pin, and the structure can ensure that the inner ring 1 and the positioning pin 2 can be matched in a right angle, thereby being beneficial to the assembly between the fixed disc 3 and the movable disc 4.

As an alternative embodiment, the angle Φ 1 is greater than 0 ° and less than 90 °.

The angle phi 1 of the invention is larger than 0 degree and smaller than 90 degrees, so that a contact surface capable of compensating errors is always arranged between the inner ring 1 and the positioning pin 2.

In an alternative embodiment, the upper part of the positioning pin 2 is an inverted cone, and the lower part of the positioning pin 2 is a cylinder.

The upper part of the positioning pin 2 is an inverted cone, the lower part of the positioning pin 2 is a cylinder, furthermore, a pin hole is formed in the support 5, and the cone at the lower part of the positioning pin 2 is arranged in the pin hole in an interference fit mode, so that the positioning pin is reliably positioned.

In an alternative embodiment, the surface roughness value of the outer conical surface of the inverted cone is smaller than the surface roughness value of the outer wall of the cylinder.

The outer conical surface of the inverted cone is a working surface, and when the outer conical surface works, the outer conical surface and the inner wall of the inner ring 1 generate friction to form a kinematic pair, and the kinematic pair needs to have higher surface roughness to complete matching, while the cylinder is fixed on the bracket 5 to play roles in positioning and fixing, and does not need to have high surface roughness.

In an alternative embodiment, the surface roughness value of the outer conical surface of the inverted cone is the same as the surface roughness value of the inner wall of the inner ring 1.

A kinematic pair is formed between the outer conical surface of the inverted cone and the inner wall of the inner ring 1, the surface roughness value between the outer conical surface of the inverted cone and the inner wall of the inner ring is the same, and the stability of the kinematic pair can be ensured.

A vortex compression assembly is shown in figures 3 and 4 and comprises a fixed disc 3, a movable disc 4, a support 5 and a ring pin structure for preventing autorotation flexible compensation, wherein the fixed disc 3 is fixed on the support 5, an inner ring 1 is embedded in the movable disc 4, and the movable disc 4 is connected with a positioning pin 2 fixed on the support 5 through the inner ring 1.

The inner ring 1 in the scroll compression assembly can do rotary motion along the outer wall of the positioning pin 2, wherein the inner wall of the inner ring 1 and the outer wall of the positioning pin 2 both have mutually adaptive tapers, when errors such as precision, position degree and the like of the inner ring 1 and the positioning pin 2 are large, the taper of the inner wall of the inner ring 1 and the taper of the outer wall of the positioning pin 2 can still ensure that the inner ring 1 and the positioning pin 2 are in contact on matched conical surfaces, and further ensure the matching between the movable disc 4 and the stationary disc, the structure can compensate the errors of the precision and the position degree of the parts, even if the processing precision of the parts is not satisfied, leakage in the compressor and shaking of the steel ring can not be caused, noise is increased, tight fit between the movable disc 4 and the steel ring can not be caused when the matching size is small, the assembly difficulty of the compressor is caused, and the requirement of the anti-rotation ring pin structure of the scroll compression disc, meanwhile, the manufacturing difficulty and the manufacturing cost are reduced.

In an alternative embodiment, the maximum radius of the inner circle of the inner ring 1 is R1, the maximum radius of the positioning pin 2 is R2, and the rotation radius R3 of the movable disc 4 is R1-R2; the radius of the movable disc 4 is R4, and the radius of the cavity of the fixed disc 3 is R5 ═ R3+ R4.

The inner wall of the inner ring 1 of the invention makes a rotary motion along the outer wall of the positioning pin 2, the inner ring 1 is fixed on the movable disc 4, and in order to ensure that the movable disc 4 does not rotate, the rotary radius R3 of the movable disc 4 must satisfy R3-R1-R2, when R3-R1-R2 are satisfied, the radius of the movable disc 4 is R4, the radius of the cavity of the fixed disc 3 is R5-R3 + R4, and the movable disc 4 makes a rotary motion in the cavity, so that the running stability of the movable disc 4 can be ensured.

As an alternative embodiment, as shown in fig. 5, an included angle Φ between the tooth tail portion of the movable disk 4 and the center of the bracket 5 in the horizontal direction is greater than or equal to 0 ° and less than or equal to 180 °; the number of the scroll compressor anti-rotation compensation structures on each scroll compression assembly is more than or equal to 2 and less than or equal to 12.

When the assembly is carried out, the included angle phi between the tooth tail part of the movable disc 4 and the center of the bracket 5 in the horizontal direction is more than or equal to 0 degree and less than or equal to 180 degrees, so that the movable disc 4 is convenient to be matched with the fixed disc 3; meanwhile, the number of the anti-rotation flexible compensation ring pin structures on each vortex compression assembly is more than or equal to 2 and less than or equal to 12, and the anti-rotation compensation structures are uniformly distributed in a ring shape.

A scroll compressor comprising a scroll compression assembly as hereinbefore described.

Above-mentioned vortex compressor's movable disk 4 rotation prevention structure can compensate the precision of spare part and the error of position degree, even the machining precision of spare part is unsatisfied, also can not cause the compressor internal leakage, can not make the steel ring rock yet, make the noise increase, also can not make tight fit between movable disk 4 and the steel ring when the cooperation size is on the small side, lead to compressor assembly difficulty, the machining precision requirement of the rotation prevention circle round pin structure of vortex compressor maneuvering disk 4 to spare part has been reduced, the manufacturing difficulty has also been reduced simultaneously, manufacturing cost has been reduced.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.