CN218378064U - Connecting structure of crankshaft oil suction pipe - Google Patents
Connecting structure of crankshaft oil suction pipe Download PDFInfo
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- CN218378064U CN218378064U CN202222684202.5U CN202222684202U CN218378064U CN 218378064 U CN218378064 U CN 218378064U CN 202222684202 U CN202222684202 U CN 202222684202U CN 218378064 U CN218378064 U CN 218378064U
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- suction pipe
- oil suction
- bent axle
- shell fragment
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Abstract
The utility model discloses an oil pipe connection structure is inhaled to bent axle, include the bent axle and inhale the oil pipe, the inside of bent axle is equipped with first location portion, the one end of inhaling the oil pipe is fretwork shell fragment structure, fretwork shell fragment structure is equipped with a plurality of shell fragments, a plurality of the shell fragment is the circumference range, a plurality of the terminal internal contraction of shell fragment, a plurality of the surface of shell fragment is equipped with second location portion, inhale the oil pipe and imbed in the inside of bent axle, first location portion is connected the restriction with second location portion and inhales the removal stroke of oil pipe in the bent axle. The structure of the utility model reduces the dependence on the high precision of the part size; the oil suction pipe can be manually installed, so that the working efficiency is improved, and the cost for purchasing press-in tooling equipment is reduced; the structure has no extrusion copper scrap generated by excessive coordination, and the problem of abnormal copper scrap generated by hard extrusion is effectively solved; the oil suction pipe changes the copper pipe in the prior art into elastic materials such as spring steel and the like, and the production cost is effectively reduced.
Description
Technical Field
The utility model relates to a compressor technical field, especially a bent axle inhale oil pipe connection structure.
Background
In the field of compressors, whether reciprocating piston compressors, rotary piston compressors or scroll compressors, the centrifugal oiling mode of mounting a spiral vane on a central oil hole of a crankshaft is the mainstream structure. With the continuous development of the rotary compressor, the displacement range of the rotary compressor is larger and larger, so that the lubricating environment of the compressor becomes worse, and the requirement on the lubrication of pump oil is higher and higher. In the running process of the compressor, all parts generate heat through friction, at present, the parts are lubricated and cooled by adopting refrigeration oil, an oil suction pipe is arranged on a short shaft of a crankshaft and inserted into the bottom of the compressor, and the refrigeration oil is sucked into a pump body through the oil suction pipe in the rotating process of the crankshaft, so that the parts are lubricated and cooled.
The material of oil suction pipe structure at present is the copper pipe, and the oil suction pipe adopts interference fit with the hole of bent axle mostly, adopts during the assembly location frock with the oil suction pipe impress in the hole of bent axle, and this kind of structure is to the oil suction pipe external diameter, and the hole required precision of bent axle is higher, need use the equipment of impressing to impress by force at the in-process of impressing, and the part size is undulant to lead to the uniformity of impressing poor, and the undulant influence clamp force of interference size and the degree of difficulty of impressing. And copper pipe scrape grind the bent axle inner wall and produce the copper bits easily at the in-process of impressing, have to mix with and bring into the inside hidden danger of compressor.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above shortcoming of prior art, the utility model aims at providing a bent axle inhales oil pipe connection structure changes the structure and the material of inhaling oil pipe and bent axle, reduces the copper fillings abnormal problem to the reliance of part size high accuracy and avoided rigid extrusion to solve the problem that above-mentioned background art provided.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an oil pipe connection structure is inhaled to bent axle, includes the bent axle and inhales oil pipe, the inside of bent axle is equipped with first location portion, the one end of inhaling oil pipe is fretwork shell fragment structure, fretwork shell fragment structure is equipped with a plurality of shell fragments, a plurality of the shell fragment is the circumference and arranges, a plurality of the terminal shrink inwards of shell fragment, a plurality of the surface of shell fragment is equipped with second location portion, inhale the oil pipe and imbed in the inside of bent axle, first location portion inhales oil pipe's removal stroke in the bent axle with second location portion connection restriction.
As a further improvement of the utility model: the oil suction pipe is characterized in that an inner hole at one end provided with a hollowed-out elastic sheet structure is connected with an oil guide sheet assembly opening, the size of the inner hole is larger than the outer diameter of the oil guide sheet assembly opening, and the oil guide sheet assembly opening is formed in the crankshaft.
As a further improvement of the utility model: and hollow parts are arranged among the plurality of elastic sheets.
As a further improvement of the utility model: the oil suction pipe is cylindrical, the inside of the oil suction pipe is of a hollow structure, one side of the oil suction pipe, which is provided with a hollow elastic sheet structure, is provided with a guide surface, the guide surface is arranged at the tail end of the elastic sheet, and the guide surface is of an inward contraction structure.
As a further improvement of the utility model: one end of the crankshaft is provided with an oil plug loading part, one side of the oil plug loading part is provided with an assembling hole, and a first positioning part is arranged inside the oil plug loading part.
As a further improvement of the utility model: the outer diameter of one side of the hollow elastic sheet structure, which is provided with the guide surface, is smaller than the inner wall of the assembling hole.
As a further improvement of the utility model: the oil suction pipe is made of elastic materials.
As a further improvement of the utility model: the oil suction pipe is made of spring steel.
As a further improvement of the utility model: the second positioning portion is a plurality of limiting salient points which are arranged on the same vertical plane, and the limiting salient points are matched with the annular clamping grooves.
As a further improvement of the utility model: the diameter of the limiting convex point is smaller than the width of the annular clamping groove, and the limiting convex point is clamped in the annular clamping groove.
As a further improvement of the utility model: the first positioning portion is an annular clamping groove, and the annular clamping groove is formed in the inner wall of the assembling hole.
As a further improvement of the utility model: the assembly hole is provided with an annular chamfer surface, and the annular chamfer surface gradually shrinks from outside to inside.
As a further improvement of the utility model: the height of the hollow elastic sheet structure is the same as the depth of the oil plug installation part.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses changed and inhaled the structure of oil pipe and bent axle, increased ring groove and spacing bump phase-match in the pilot hole of bent axle, spacing bump sets up on fretwork shell fragment structure for can control the tight power of rising and the high location of impressing, this structure has reduced the reliance to the spare part size high accuracy.
2. Oil pipe of present production technology adopts equipment to impress, and purchase production facility and lead to the cost to improve, and adopt the utility model discloses an inhale oil pipe and bent axle structure, can use artifical manual packing into with inhaling oil pipe, reduce and use frock location of packing into and equipment twice process of impressing, promote work efficiency to reduce the cost of purchasing the frock equipment of impressing.
3. Adopt the extrusion copper fillings that this structure does not have the excessive cooperation to produce, effectively solve hard extrusion and produce the unusual problem of copper fillings.
4. The oil suction pipe with the structure changes the copper pipe in the prior art into elastic materials such as spring steel and the like, and effectively reduces the production cost.
Drawings
Fig. 1 is an assembly schematic diagram of an oil suction pipe and a crankshaft of the present invention;
FIG. 2 is a schematic view of the crankshaft structure of the present invention;
FIG. 3 is a schematic view of the crankshaft structure of the present invention;
fig. 4 is a schematic view of the structure of the oil suction pipe of the present invention;
fig. 5 is a schematic view of the structure of the oil suction pipe of the present invention.
The reference numerals in the schematic drawings illustrate:
1. a crankshaft; 11. a first positioning portion; 12. an oil plug loading part; 13. an assembly hole; 14. an annular chamfer surface; 2. an oil suction pipe; 21. a spring plate; 22. a second positioning portion; 23. a hollow-out section; 24. a guide surface.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be constructed in operation, and are not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The invention will now be further described with reference to the accompanying drawings, in which:
the first embodiment is as follows:
as shown in fig. 1 to 5, in the first embodiment, a crankshaft oil suction pipe connection structure is provided, which includes a crankshaft 1 and an oil suction pipe 2, a first positioning portion 11 is disposed inside the crankshaft 1, one end of the oil suction pipe 2 is a hollow elastic sheet structure, the hollow elastic sheet structure is provided with four elastic sheets 21, the four elastic sheets 21 are circumferentially arranged, ends of the four elastic sheets 21 are inwardly contracted, a second positioning portion 22 is disposed on a surface of the four elastic sheets 21, the oil suction pipe 2 is embedded inside the crankshaft 1, and the first positioning portion 11 is connected with the second positioning portion 22 to limit a moving stroke of the oil suction pipe 2 in the crankshaft 1.
The oil suction pipe 2 is connected with an inner hole at one end provided with a hollowed-out elastic sheet structure and an oil guide sheet assembly opening, the size of the inner hole is larger than the outer diameter of the oil guide sheet assembly opening, and the oil guide sheet assembly opening is formed in the crankshaft 1.
The oil suction pipe 2 is cylindrical, the inside of the oil suction pipe 2 is of a hollow structure, one side of the oil suction pipe 2, which is provided with a hollow elastic sheet structure, is provided with a guide surface 24, the guide surface 24 is arranged at the tail end of the elastic sheet, and the guide surface 24 is of an inward contraction structure.
An oil plug loading part 12 is arranged at one end of the crankshaft 1, a mounting hole 13 is arranged at one side of the oil plug loading part 12, and a first positioning part 11 is arranged inside the oil plug loading part 12.
The outer diameter of the hollow elastic sheet structure on the side where the guide surface 24 is arranged is smaller than the inner wall of the assembling hole.
The oil suction pipe 2 is made of spring steel.
The second positioning portion 22 is provided with four limit salient points, the four limit salient points are respectively arranged on the surfaces of the four elastic sheets 21, the four limit salient points are arranged on the same vertical plane, and the limit salient points are matched with the annular clamping grooves.
The diameter of the limiting convex point is smaller than the width of the annular clamping groove, and the limiting convex point is clamped in the annular clamping groove.
The first positioning portion 11 is a ring-shaped clamping groove, and the ring-shaped clamping groove is formed in the inner wall of the assembling hole 13.
The assembly hole 13 is provided with an annular chamfer surface 14, and the annular chamfer surface 14 gradually shrinks from outside to inside.
The height of the hollow elastic sheet structure is the same as the depth of the oil plug installation part 12.
The second embodiment:
the second embodiment provides a crankshaft oil suction pipe connection structure, including crankshaft 1 and oil suction pipe 2, the inside of crankshaft 1 is equipped with first location portion 11, the one end of oil suction pipe 2 is fretwork shell fragment structure, fretwork shell fragment structure is equipped with five shell fragments 21, five shell fragments 21 are the circumference and arrange, five the terminal shrink inwards of shell fragment 21, five the surface of shell fragment 21 is equipped with second location portion 22, oil suction pipe 2 imbeds in the inside of crankshaft 1, first location portion 11 is connected the restriction with second location portion 22 and inhales the removal stroke of oil suction pipe 2 in crankshaft 1.
The oil suction pipe 2 is connected with an inner hole at one end provided with a hollowed-out elastic sheet structure and an oil guide sheet assembly opening, the size of the inner hole is larger than the outer diameter of the oil guide sheet assembly opening, and the oil guide sheet assembly opening is formed in the crankshaft 1.
And hollow parts 23 are arranged among the five elastic sheets 21.
The oil suction pipe 2 is cylindrical, the inside of the oil suction pipe 2 is of a hollow structure, one side of the oil suction pipe 2, which is provided with a hollow elastic sheet structure, is provided with a guide surface 24, the guide surface 24 is arranged at the tail end of the elastic sheet, and the guide surface 24 is of an inward contraction structure.
An oil plug loading part 12 is arranged at one end of the crankshaft 1, a mounting hole 13 is arranged at one side of the oil plug loading part 12, and a first positioning part 11 is arranged inside the oil plug loading part 12.
The outer diameter of the hollow elastic sheet structure on the side where the guide surface 24 is arranged is smaller than the inner wall of the assembling hole.
The oil suction pipe 2 is made of spring steel.
The second positioning portion 22 is provided with five limit bumps, the five limit bumps are respectively arranged on the surfaces of the five elastic sheets 21, the five limit bumps are arranged on the same vertical plane, and the limit bumps are matched with the annular clamping grooves.
The diameter of the limiting convex point is smaller than the width of the annular clamping groove, and the limiting convex point is clamped in the annular clamping groove.
The first positioning portion 11 is a ring-shaped clamping groove, and the ring-shaped clamping groove is formed in the inner wall of the assembling hole 13.
The assembly hole 13 is provided with an annular chamfer surface 14, and the annular chamfer surface 14 gradually shrinks from outside to inside.
The height of the hollow elastic sheet structure is the same as the depth of the oil plug installation part 12.
The third embodiment is as follows:
the third embodiment provides an oil pipe connection structure is inhaled to bent axle, including bent axle 1 and oil pipe 2, the inside of bent axle 1 is equipped with first location portion 11, the one end of inhaling oil pipe 2 is fretwork shell fragment structure, fretwork shell fragment structure is equipped with four shell fragments 21, four shell fragment 21 is the circumference and arranges, four the terminal shrink inwards of shell fragment 21, four the surface of shell fragment 21 is equipped with second location portion 22, inhale the inside of oil pipe 2 embedding in bent axle 1, first location portion 11 is connected the restriction with second location portion 22 and inhales the removal stroke of oil pipe 2 in bent axle 1.
The oil suction pipe 2 is connected with an inner hole at one end provided with a hollowed-out elastic sheet structure and an oil guide sheet assembly opening, the size of the inner hole is larger than the outer diameter of the oil guide sheet assembly opening, and the oil guide sheet assembly opening is formed in the crankshaft 1.
And hollow parts 23 are arranged among the four elastic sheets 21.
The oil suction pipe 2 is cylindrical, the inside of the oil suction pipe 2 is of a hollow structure, one side of the oil suction pipe 2, which is provided with a hollow elastic sheet structure, is provided with a guide surface 24, the guide surface 24 is arranged at the tail end of the elastic sheet, and the guide surface 24 is of an inward contraction structure.
An oil plug loading part 12 is arranged at one end of the crankshaft 1, a mounting hole 13 is arranged at one side of the oil plug loading part 12, and a first positioning part 11 is arranged inside the oil plug loading part 12.
The outer diameter of the hollow elastic sheet structure on the side where the guide surface 24 is arranged is smaller than the inner wall of the assembling hole.
The oil suction pipe 2 is made of spring steel.
The second positioning portion 22 is provided with four limit salient points, the four limit salient points are respectively arranged on the surfaces of the four elastic sheets 21, the four limit salient points are arranged on the same vertical plane, and the limit salient points are matched with the positioning concave points.
The diameter of the limit convex point is smaller than that of the positioning concave point, and the limit convex point is embedded into the positioning concave point.
The first positioning part 11 is a plurality of positioning concave points, the plurality of positioning concave points are arranged on the inner wall of the assembling hole 13, the plurality of positioning concave points are arranged on the same vertical plane, and the positioning concave points are matched with the limiting convex points to limit the installation depth of the oil suction pipe and strengthen the limitation on the freedom degree of the rotating shaft direction.
The assembly hole 13 is provided with an annular chamfer surface 14, and the annular chamfer surface 14 gradually shrinks from outside to inside.
The height of the hollow elastic sheet structure is the same as the depth of the oil plug loading part 12.
The utility model discloses a theory of operation: an operator holds the oil suction pipe 2 by hand, the guide surface 24 at one end of the oil suction pipe 2 has a guiding effect, the oil suction pipe 2 is arranged in the assembly hole 13 of the crankshaft 1, when the oil suction pipe 2 is arranged in a matching area, reverse thrust can be formed on the hand of the operator due to the oil suction pipe 2, the oil suction pipe 2 is pushed slightly by applying force, the interference part of the oil suction pipe 2 enters the assembly hole 13 of the crankshaft 1, the thrust is applied to the elastic piece 21 by the inner wall of the crankshaft 1, the elastic piece 21 is narrowed inwards, the hollow-out distance is reduced, and the outer diameter of the oil suction pipe 2 is reduced and slides into the assembly hole 13 of the crankshaft 1.
After the oil suction pipe 2 is installed, the oil suction pipe 2 moves into the assembly hole 13 until the second positioning portion 22 contacts with the first positioning portion 11, the second positioning portion 22 of the oil suction pipe 2 slides into the first positioning portion 11 of the crankshaft 1, the oil suction pipe 2 recovers the size of the outer wall of the oil suction pipe 2 by using the elasticity of the oil suction pipe 2, the upper end and the lower end of the first positioning portion 11 are clamped by the outer wall of the second positioning portion 22 to limit the installation depth of the oil suction pipe 2, and after the oil suction pipe 2 recovers the size, the outer wall of the oil suction pipe 2 clamps the oil plug installation portion 12 of the crankshaft 1 under the action of internal tension to form holding force to prevent loosening, so that the assembling and size positioning functions are completed.
The utility model discloses a main function:
1. the utility model discloses changed the structure of inhaling oil pipe and bent axle, increased ring groove and spacing bump phase-match in the pilot hole of bent axle, spacing bump sets up in fretwork shell fragment structure for can control the tight power and the high positioning of rising of impressing, this structure has reduced the reliance to the spare part size high accuracy.
2. Oil pipe of present production technology adopts equipment to impress, and purchase production facility and lead to the cost to improve, and adopt the utility model discloses an inhale oil pipe and bent axle structure, can use artifical manual packing into with inhaling oil pipe, reduce and use frock location of packing into and equipment twice process of impressing, promote work efficiency to reduce the cost of purchasing the frock equipment of impressing.
3. Adopt the extrusion copper scraps that this structure does not have excessive cooperation and produces, effectively solve hard extrusion and produce the unusual problem of copper scraps.
4. The oil suction pipe with the structure changes the copper pipe in the prior art into elastic materials such as spring steel and the like, and effectively reduces the production cost.
In conclusion, after the ordinary skilled in the art reads the document of the present invention, according to the present invention, the technical solution and technical concept of the present invention do not need creative mental labor to make other various corresponding transformation schemes, which all belong to the protection scope of the present invention.
Claims (10)
1. The utility model provides an oil pipe connection structure is inhaled to bent axle, includes the bent axle and inhales oil pipe, its characterized in that, the inside of bent axle is equipped with first location portion, the one end of inhaling oil pipe is fretwork shell fragment structure, fretwork shell fragment structure is equipped with a plurality of shell fragments, a plurality of the shell fragment is the circumference range, a plurality of the terminal shrink inwards of shell fragment, a plurality of the surface of shell fragment is equipped with second location portion, inhale oil pipe embedding in the inside of bent axle, first location portion is connected the restriction with second location portion and is inhaled the removal stroke of oil pipe in the bent axle.
2. The connecting structure of claim 1, wherein the oil suction pipe has an inner hole at one end thereof with a hollowed-out spring structure, the inner hole is larger than an outer diameter of the oil guide fitting opening, and the oil guide fitting opening is formed in the crankshaft.
3. The connecting structure of claim 1, wherein a hollow portion is formed between the plurality of spring plates.
4. The connecting structure of claim 1, wherein the oil suction pipe is cylindrical, the inside of the oil suction pipe is hollow, one side of the oil suction pipe having the hollowed spring structure is provided with a guiding surface, the guiding surface is provided at the end of the spring, and the guiding surface is in an inwardly contracted structure.
5. The connecting structure of claim 4, wherein an oil plug installation portion is provided at one end of the crankshaft, a fitting hole is provided at one side of the oil plug installation portion, and a first positioning portion is provided inside the oil plug installation portion.
6. The connecting structure of claim 5, wherein the hollow spring plate structure has a guide surface side with an outer diameter smaller than an inner wall of the fitting hole.
7. The crankshaft oil suction pipe connecting structure according to claim 1, wherein the oil suction pipe is made of elastic material.
8. The connecting structure of claim 1, wherein the second positioning portion is a plurality of limiting protrusions, the plurality of limiting protrusions are disposed on the same vertical plane, and the limiting protrusions are disposed in a matching manner with the annular clamping grooves.
9. The crankshaft oil suction pipe connecting structure according to claim 8, wherein the diameter of the limiting convex point is smaller than the width of the annular clamping groove, and the limiting convex point is clamped in the annular clamping groove.
10. The crankshaft oil suction pipe connecting structure according to claim 6, wherein the first positioning portion is an annular clamping groove, and the annular clamping groove is formed in an inner wall of the assembling hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222684202.5U CN218378064U (en) | 2022-10-12 | 2022-10-12 | Connecting structure of crankshaft oil suction pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222684202.5U CN218378064U (en) | 2022-10-12 | 2022-10-12 | Connecting structure of crankshaft oil suction pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218378064U true CN218378064U (en) | 2023-01-24 |
Family
ID=84928058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222684202.5U Active CN218378064U (en) | 2022-10-12 | 2022-10-12 | Connecting structure of crankshaft oil suction pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218378064U (en) |
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2022
- 2022-10-12 CN CN202222684202.5U patent/CN218378064U/en active Active
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