CN218669821U - Lubricating support assembly and compressor - Google Patents

Abstract

The utility model discloses a lubricating support subassembly, including bearing and support the below of support is equipped with the cylinder body, be equipped with the through-hole on the support, the bearing is followed pass in the through-hole seted up oil groove and oil storage tank in the through-hole, the oil storage tank sets up the top of oil groove, the oil storage tank sets up the support with between the bearing, oil groove upper and lower both ends respectively with the oil storage tank with the cylinder body intercommunication. The utility model discloses reduce the wearing and tearing between the bearing, realized better lubricated effect, and simple structure, convenient production.

Description

Lubricating support assembly and compressor

Technical Field

The utility model relates to a compressor technical field especially relates to a lubricated support subassembly and compressor.

Background

The eccentric shaft of the vertical rotary compressor is driven by the motor, and the eccentric portion drives the ring to compress the refrigerant gas. Compressed refrigerant gas's cavity is pump body structure for short, it has single cylinder cavity pump and double-cylinder cavity pump to be common, this type of compressor bearing, the ring, the blade, contact department can take place wearing and tearing between the support, lead to the clearance increase or produce iron fillings and can produce obvious harmful effects to its performance, consequently, the ring, blade and eccentric bearing contact part have fine and close refrigerator oil parcel, reduce the wearing and tearing of these parts, the oil gallery that combines the bearing makes refrigerator oil fully parcel contact part more with support plane oil groove, cooperate the wearing and tearing that reduce contact part jointly. However, the refrigerating machine oil at the contact position of the upper end of the support and the bearing is less, and the abrasion is easily generated during high-load operation.

Also have among the prior art to reduce the technical scheme of support and bearing friction through setting up the bearing seal cavity, for example chinese utility model patent CN202121753842.6 just provides and feeds through with the compression cavity through setting up the bearing seal cavity, the fluid that filters out in the compression cavity exhaust collects the protecgulum oil circuit through the cylinder body oil circuit, thereby get into the bearing seal cavity, make the bearing seal obtain the lubrication, this technical scheme makes the axle obtain the lubrication to a certain extent and has reduced frictional force, but this technical scheme only lubricates the bearing through the bearing seal cavity, it is not enough even to produce oil, lubrication effect to the bearing is not good, and this technical scheme structure is complicated relatively, high in production cost.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lubricated support subassembly has solved the inside not good problem of lubricated effect of bearing of compressor among the prior art.

In order to solve the technical problem, the technical scheme of the utility model is that: a lubricating support assembly comprises a bearing and a support, wherein the bottom of the support is connected with a cylinder body, a through hole is formed in the support, and the bearing penetrates through the through hole;

an oil groove and an oil storage tank are formed in the hole wall of the through hole, and the oil groove is formed between the support and the bearing and communicated with the cylinder body;

the oil storage tank is arranged on the oil groove and communicated with the oil groove; the depth of the oil groove along the radial direction of the through hole is smaller than the depth of the oil storage tank along the radial direction of the through hole.

Optionally, the oil storage tank is an inner circular groove which is annularly arranged on the inner side of the through hole for a circle.

Optionally, the oil storage tank is located on one side of the oil groove far away from the cylinder body.

Optionally, the cross section of the oil storage tank is rectangular.

Optionally, the depth of the oil storage groove in the radial direction of the through hole is 0.2-0.6mm.

Optionally, the width of the oil storage groove in the axial direction of the through hole is 3-15mm.

Optionally, the distance from the oil storage tank to the top end of the support is 3-8mm.

Optionally, an outlet hole is provided in the cylinder.

Optionally, the bottom end of the oil groove is communicated with the oil outlet hole. The oil-gas mixture in the cylinder body is compressed in the cylinder body and then is sprayed into the oil groove and the oil storage tank through the oil outlet hole.

The utility model also provides a compressor, the compressor includes foretell lubricated support subassembly.

The utility model discloses the beneficial effect who realizes: the utility model discloses a set up the oil groove in the position of support and bearing contact, set up the oil storage tank on the oil groove, the oil storage tank is linked together with the oil groove, the mode of bottom and cylinder body intercommunication of oil groove, the refrigerating machine oil that the cylinder body came out when the bearing revolves at a high speed flows from the oil groove lower extreme up, refrigerating machine oil arrives oil storage tank department, by the support upper end one side play oil originally become the multilateral play oil, can promote the lubricity of bearing and support journal, the oil storage tank and the bearing contact friction on the support journal reduce, the wearing and tearing between the bearing have been reduced, better lubricated effect has been realized; and the support has simple structure, convenient production, convenient application and low production cost.

Drawings

FIG. 1 is a cross-sectional view of a bearing and a support in the present invention;

FIG. 2 is a partial enlarged view of a cross-sectional view of the bearing and support of the present invention;

FIG. 3 is a cross-sectional view of the middle support of the present invention;

FIG. 4 is a cross-sectional view of the bearing of the present invention;

fig. 5 is a cross-sectional view of the middle compressor of the present invention.

Names of the corresponding components or flow names represented by numerals or letters in the drawings: 1. a bearing; 2. a support; 3. a cylinder body; 31. an oil outlet; 4. an oil trench; 5. and an oil storage tank.

In fig. 3, a is the depth of the oil reservoir in the direction along the diameter extension of the bearing; b is the distance from the oil storage tank to the top end of the support; and C is the width of the oil storage tank in the extending direction along the length of the bearing.

In fig. 4, X is the position of the bearing at the bottom end of the cylinder, Y is the position of the bearing at the top end of the cylinder, and Z is the position where the bearing contacts the pedestal.

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

the eccentric shaft of the vertical rotary compressor is driven by the motor, and the eccentric portion drives the ring to compress the refrigerant gas. The gaseous cavity of compression refrigerant pump body structure for short, also be called the cylinder body, it has single cylinder cavity pump and double-cylinder cavity pump to be common, this type of compressor bearing, the ring, the blade, contact department can take place wearing and tearing between the support, lead to the clearance increase or produce iron fillings and can produce obvious harmful effects to its performance, consequently, the ring, blade and eccentric bearing contact part have fine and close refrigerator oil parcel, reduce the wearing and tearing of these parts, the oil gallery that combines the bearing makes refrigerator oil more fully wrap up contact part with support plane oil groove, cooperate the wearing and tearing that reduce contact part jointly. However, the refrigerating machine oil at the contact position of the upper end of the support and the bearing is less, and the high-load operation is easy to generate abrasion.

The lubricating support assembly provided by the embodiment is used for solving the problems that the refrigerating machine oil at the contact position of the upper end of the support and the bearing is less and the high-load operation is easy to wear, and comprises a bearing 1 and a support 2, the bottom of the support 2 is connected with a cylinder body 3, the support 2 is provided with a through hole 21, the bearing 1 penetrates through the through hole 21, an oil groove 4 and an oil storage tank 5 are formed in the hole wall of the through hole 21, the oil groove 4 is formed between the support 2 and the bearing 1 and is communicated with the cylinder body 3, the oil storage tank 5 is arranged on the oil groove 4 and is communicated with the oil groove 4, the oil storage tank 5 is arranged between the support 2 and the bearing 1, and the upper end and the lower end of the oil groove 4 are respectively communicated with the oil storage tank 5 and the cylinder body 3.

In an embodiment, the oil groove 4 may be formed as an inner circular groove at the hole wall of the through hole 21 and only communicates with the cylinder block 3, and when the bearing 1 is mounted on the bracket, the oil groove 4 makes a gap for oil return formed between part of the hole wall of the through hole 21 and the bearing 1. The lubricating oil entrained in the oil-gas mixture can flow into the oil reservoir 5 through the oil channels.

Specifically, the depth of the oil groove 4 in the diameter extending direction of the bearing 1 is smaller than the depth of the oil storage tank 5 in the radial direction of the through hole, so that the oil storage tank 5 is ensured to have certain oil storage capacity. The oil reservoir 5 may be provided at one or more positions and may be provided at one or more positions of the oil groove 4. The oil storage tank 5 can be set into various different tank body shapes, such as an inner circular tank and a spiral tank, which can be determined according to actual conditions.

In this embodiment 1, the vane is driven to reciprocate in the cylinder 3 along with the rotation of the bearing 1, in order to ensure the smooth movement of the vane in the cylinder 3, the lubricating oil is added in the cylinder 3, and along with the reciprocating movement of the vane in the cylinder 3, the vane can compress the gas and the lubricating oil in the cylinder 3, and in the process of compressing the lubricating oil in the cylinder 3, a mixture of the lubricating oil and the compressed gas can be generated in the cylinder 3, which is called as an oil-gas mixture for convenience of description, because the lower end of the oil groove 4 is communicated with the cylinder 3, the oil-gas mixture can be sprayed into the oil groove 4 from the cylinder 3 along with the compression of the vane, and because the oil groove 4 and the oil storage groove 5 are located between the bearing 1 and the support 2, the lubricating oil mixed in the oil-gas mixture can achieve the effect of lubricating the bearing 1 and the support 2. In addition, since the upper end of the oil groove 4 is communicated with the oil storage tank 5, a part of the oil-gas mixture enters the oil storage tank 5 through the oil groove 4, in this embodiment 1, the oil storage tank 5 has a certain oil storage capacity, and after the oil-gas mixture enters the oil storage tank 5, a part of the lubricating oil can be stored in the oil storage tank 5. Oil storage tank 5 links to each other with oil groove 4, 4 lower extremes of oil groove are continuous cylinder body 3, the refrigerating machine oil that cylinder body 3 came out when bearing 1 high-speed gyration up flows from oil groove 4 lower extreme, refrigerating machine oil reaches oil storage tank 5 department, become from oil storage tank 5 and support 2 upper end realization whole week evenly oil out by 2 upper end one side play oil of original support, can promote the lubricity of bearing 1 and support journal, support journal upper end oil storage tank 5 reduces with bearing contact friction, the wearing and tearing between the bearing have been reduced.

Example 2:

in embodiment 2, in embodiment 1, the oil reservoir 5 may be an inner circular groove formed around the inner circumference of the through hole 21, or may be a semi-inner circular groove formed around the inner half circumference of the through hole 21.

In one embodiment, two or more oil reservoirs 5 may be provided in the support 2.

Specifically, oil storage tank 5 is groove structure, and at oil storage tank 5 department, support 2 and bearing 1 can not direct contact, and this has reduced the area of contact of bearing 1 and support 2 to a certain extent, has reached the effect of frictional force between less bearing 1 and the support 2.

Specifically, the cross section of the groove may be any shape, in the description of this embodiment, the cross section of the groove may be rectangular, semicircular, or irregular, and in this embodiment, the shape of the cross section is designed to achieve a better oil storage effect for the oil storage tank.

Example 3:

in the present embodiment 3, the depth of the oil reservoir 5 in the radial direction of the through-hole is set to any value of 0.2 to 0.6mm, the width of the oil reservoir 5 in the axial direction of the through-hole is set to any value of 3 to 15mm, and the distance of the oil reservoir 5 from the top end of the holder 2 is set to any value of 3 to 8mm. The depth of the oil reservoir in the direction along the diameter of the bearing 1 and the width of the oil reservoir 5 in the direction along the axis of the through hole determine the volume of the oil reservoir 5 and the oil storage capacity of the oil reservoir 5. If the distance between the oil storage tank 5 and the top end of the support 2 is too large, the top end of the support 2 is in contact with the bearing 1, and lubricating oil is not easy to enter, so that a large friction force is generated; if the distance from the oil storage tank 5 to the top end of the support 2 is too small, the stability of the support 2 to the bearing 1 is affected, and on the other hand, the sealing performance of the support 2 to the cylinder body may also be affected.

Example 4:

lubricating support subassembly, as shown in fig. 1 and 2, including bearing 1 and support 2, the bottom and the cylinder body 3 of support 2 meet, be equipped with through-hole 21 on the support 2, bearing 1 passes from the through-hole 21, seted up oil groove 4 and oil storage tank 5 on the pore wall of through-hole 21, oil groove 4 is located between support 2 and the bearing 1, and communicate with cylinder body 3, oil storage tank 5 sets up the one side of keeping away from cylinder body 3 at oil groove 4, oil storage tank 5 sets up between support 2 and bearing 1, both ends communicate with oil storage tank 5 and cylinder body 3 respectively about oil groove 4. The oil outlet hole 31 is formed in the cylinder body 3, the blade is arranged in the cylinder body 3, the blade is driven to reciprocate in the cylinder body 3 along with the rotation of the bearing 1, in order to ensure the smooth movement of the blade in the cylinder body 3, lubricating oil is added in the cylinder body 3, the blade can compress gas and lubricating oil in the cylinder body 3 along with the reciprocating movement of the blade in the cylinder body 3, and in the process that the lubricating oil in the cylinder body 3 is compressed by the blade, a mixture of the lubricating oil and the compressed gas can be generated in the cylinder body 3.

Specifically, as shown in fig. 3, the oil reservoir 5 is an inner circular groove that is circumferentially provided inside the through hole 21. The depth of the oil groove 4 in the direction of diametrical extension of the bearing 1 is smaller than the depth of the oil reservoir 5. Along with the blade continues to be reciprocating motion in cylinder body 3, more and more oil-gas mixture enters into oil groove 4 and oil storage tank 5 department through oil outlet 31, because oil storage tank 5 is greater than oil groove 4's degree of depth along the radial ascending degree of direction of through-hole, oil storage tank 5 possesses the oil storage effect, along with more and more oil-gas mixture carries lubricating oil to get into in the oil storage tank 5, oil storage tank 5 begins the oil storage to it has better lubricated effect to make between bearing 1 and the support 2. And because the oil storage tank 5 is an inner circular groove arranged on the inner side of the through hole 21 in a circle, the support 2 is not in contact with the bearing 1 at the position of the groove, so that the contact area between the support 2 and the bearing 1 is reduced to a certain extent, the friction force between the bearing 1 and the support 2 is reduced, the bearing 1 rotates more smoothly in the support 2, and the energy consumption of the compressor is reduced to a certain extent.

Specifically, as shown in fig. 3, the cross section of the oil reservoir 5 is rectangular, and the depth of the oil reservoir 5 in the radial direction of the through hole is 0.2mm. The oil reservoir 5 had a width of 3mm in the axial direction of the through-hole. The distance from the oil storage tank 5 to the top end of the support 2 is 3mm. The depth of the oil reservoir in the direction along the diameter of the bearing 1 and the width of the oil reservoir 5 in the direction along the axis of the through hole determine the volume of the oil reservoir 5 and the oil storage capacity of the oil reservoir 5. If the distance between the oil storage tank 5 and the top end of the support 2 is too large, the top end of the support 2 is contacted with the bearing 1, so that lubricating oil is not easy to enter, and a large friction force is generated; if the distance from the oil storage tank 5 to the top end of the support 2 is too small, the stability of the support 2 to the bearing 1 is affected, and on the other hand, the sealing performance of the support 2 to the cylinder body may also be affected.

Example 5:

the basic settings of the present embodiment 5 are the same as those of the embodiment 4, and the main differences are that: in this embodiment 5, the maximum depth of the oil reservoir 5 in the radial direction of the through hole is 0.4mm, the maximum width of the oil reservoir 5 in the axial direction of the through hole is 9mm, and the distance from the oil reservoir 5 to the top end of the holder 2 is 5mm; the lubricating seat assembly provided in this example 2 has a better oil reserving capability of the oil reservoir 5 than that of the lubricating seat assembly in the example 1.

Example 6:

the basic settings of the present embodiment 6 are the same as those of the embodiment 4, and the main differences are that: in this embodiment 3, the depth of the reservoir 5 in the radial direction of the through-hole is 0.6mm, the width of the reservoir 5 in the axial direction of the through-hole is 15mm, and the distance of the reservoir 5 from the top end of the holder 2 is 8mm. The lubricating mount assembly provided in this embodiment 3 has a better oil reserving capability of the oil reservoir 5 than that of the lubricating mount assembly in embodiment 2.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, the description is merely for convenience and simplicity of description, and it is not intended to indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, the terms describing the positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent. Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are used primarily for distinguishing different devices, elements, or components (the specific types and configurations may be the same or different), and are not used for indicating or implying relative importance among the indicated devices, elements, or components, but are not to be construed as indicating or implying relative importance.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. 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 claims of the present invention.

Claims (10)

1. The utility model provides a lubricated support subassembly, includes bearing and support, the bottom and the cylinder body of support meet, be equipped with the through-hole on the support, the bearing is followed pass its characterized in that in the through-hole:

an oil groove and an oil storage tank are formed in the hole wall of the through hole, and the oil groove is formed between the support and the bearing and communicated with the cylinder body;

the oil storage tank is arranged on the oil groove and communicated with the oil groove; the depth of the oil groove along the radial direction of the through hole is smaller than the depth of the oil storage tank along the radial direction of the through hole.

2. The lubricating mount assembly of claim 1 wherein: the oil storage tank is an inner circular tank which is annularly arranged on the periphery of the inner side of the through hole.

3. The lubricating mount assembly of claim 2 wherein: the oil storage tank is located on one side, far away from the cylinder body, of the oil groove.

4. The lubricating mount assembly of claim 3 wherein: the cross section of the oil storage tank is rectangular.

5. The lubricating mount assembly of claim 3 wherein: the depth of the oil storage tank in the radial direction of the through hole is 0.2-0.6mm.

6. The lubricating mount assembly of claim 3 wherein: the width of the oil storage tank in the axial direction of the through hole is 3-15mm.

7. The lubricating mount assembly of claim 3 wherein: the distance between the oil storage tank and the top end of the support is 3-8mm.

8. The lubricating mount assembly of any one of claims 1-7 wherein: the oil outlet is arranged on the cylinder body.

9. The lubricating mount assembly of claim 8 wherein: the oil groove is communicated with the oil outlet.

10. A compressor, characterized by: comprising a lubricating mount assembly as claimed in any one of claims 1 to 9.

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