CN211573719U - Oil suction pipe, oil suction device and compressor - Google Patents

Abstract

The utility model provides an oil suction pipe, an oil suction device and a compressor, wherein the oil suction pipe comprises an oil suction pipe body, a chuck and a clamping unit, and the oil suction pipe comprises an oil suction end and a connector end; the chuck is connected with the interface end and is used for being matched and connected with the port of the crankshaft; the clamping unit set up in on the chuck, the clamping unit includes more than two jack catchs, the jack catch be used for with the bent axle cooperatees, in order with inhale oil pipe connect in on the bent axle. Due to the arrangement, the installation performance of the oil suction pipe is improved, the problem that when the existing oil suction pipe is preassembled with the crankshaft, the oil suction pipe is preassembled to the crankshaft due to the fact that the connection area of the connection part of the existing oil suction pipe and the crankshaft is too large, the connection part is too long, and a large amount of copper scraps are generated in the process of pressing the oil suction pipe into the crankshaft is solved, and the potential safety hazard of a compressor is reduced.

Description

Oil suction pipe, oil suction device and compressor

Technical Field

The utility model relates to a compressor structure technical field, in particular to inhale oil pipe, oil suction device and compressor.

Background

During the working process of the compressor, the oil suction pipe is connected with the crankshaft, and the cooling lubricating oil of the compressor conveys the oil to the parts of the operation parts, such as the crankshaft, the piston, the connecting rod, the piston pin and the like for lubrication and cooling in a centrifugal rotation mode of the oil suction pipe and the crankshaft. The oil suction pipe is a key part of the variable frequency compressor, and the oil suction pipe and the crankshaft are assembled together to form a close fit structure. Lubricating oil of the compressor can enter the spiral groove on the outer side of the crankshaft through the oil suction pipe to lubricate the crankshaft and the shaft hole of the engine base, and continuously flows upwards along the spiral groove to enter the crank, and lubricates the large end and the small end of the connecting rod through the radial oil hole of the crank, so that the important functions of cooling, reducing part abrasion, reducing noise, reducing friction loss and the like are achieved.

However, in the oil suction pipe structure of the existing compressor, when the oil suction pipe is preassembled, the oil suction pipe is easy to be inclined, so that a large amount of copper scraps are generated in the process of preloading the oil suction pipe into a crankshaft, and the potential safety hazard of the compressor is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oil suction device and compressor to solve the problem that produces the copper scraps among the current oil suction device pre-installation process.

In order to solve the technical problem, the utility model provides an inhale oil pipe, it includes: the oil suction pipe body comprises an oil suction end and a connector end; the chuck is connected with the interface end and is used for being matched and connected with the port of the crankshaft; and the clamping unit is arranged on one side, deviating from the oil suction pipe body, of the chuck and comprises more than two clamping jaws which are matched with the crankshaft so as to connect the oil suction pipe to the crankshaft.

Optionally, the structure of the jaw is a separation type jaw.

Optionally, the number of the jaws is even.

Optionally, the chuck is annular, an inner ring of the chuck is connected with the interface end of the oil suction pipe body in a matching manner, and an outer ring of the chuck is not smaller than the inner diameter of the crankshaft.

Optionally, an inner cavity is formed inside the chuck, and the inner cavity is a clamping groove of the chuck.

Optionally, the oil suction pipe body, the chuck and the clamping unit are integrally formed, or the chuck and the clamping unit are integrally formed.

In order to solve the technical problem, the utility model also provides an oil suction device, it includes: the oil suction pipe; and one end of the crankshaft is connected with the clamping unit of the oil suction pipe.

Optionally, the clamping unit is in interference fit with an inner hole of the crankshaft, or the clamping unit is in interference fit with an outer contour of the crankshaft.

Optionally, the interference of the clamping unit and the crankshaft in interference fit is greater than 0.5 mm.

In order to solve the technical problem, the utility model also provides a compressor, it includes oil suction device.

In the oil suction pipe, the oil suction device and the compressor provided by the utility model, the oil suction pipe comprises an oil suction pipe body, a chuck and a clamping unit, and the oil suction pipe comprises an oil suction end and a connector end; the chuck is connected with the interface end and is used for being matched and connected with the port of the crankshaft; the clamping unit set up in on the chuck, the clamping unit includes more than two jack catchs, the jack catch be used for with the bent axle cooperatees, in order with inhale oil pipe connect in on the bent axle. Due to the arrangement, the installation performance of the oil suction pipe is improved, the problem that when the existing oil suction pipe is preassembled with the crankshaft, because the connection area of the connection part of the existing oil suction pipe and the crankshaft is too large, the oil suction pipe is preassembled to be pressed into the crankshaft to generate a large amount of copper scraps due to the fact that the connection part is too long is solved, meanwhile, the deformation of the crankshaft, such as the deformation of the roundness and the coaxiality of the crankshaft and the like, caused by the fact that the oil suction pipe is pressed into the crankshaft can be improved, the quality risk of the oil suction device in the operation process is reduced.

Drawings

Those skilled in the art will appreciate that the drawings are provided for a better understanding of the invention and do not constitute any limitation on the scope of the invention. Wherein:

fig. 1 is a schematic view of an oil suction pipe according to an embodiment of the present invention;

fig. 2 is an exploded view of an oil suction pipe connected to a crankshaft according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of the oil suction pipe shown in FIG. 2 after being coupled with a crankshaft;

FIG. 4 is a schematic view of the oil suction pipe shown in FIG. 3 after being connected to a crankshaft;

fig. 5 is a schematic view of another oil suction pipe according to an embodiment of the present invention;

figure 6 is a cross-sectional view of an alternative suction pipe shown in figure 5;

fig. 7 is a schematic view of a card slot according to an embodiment of the present invention;

fig. 8 is an exploded view of the oil suction pipe body connected to the integrally formed clamping unit and the chuck according to an embodiment of the present invention.

In the drawings:

10-a crankshaft; 20-spinning; 100-oil suction pipe body; 110-oil suction end; 120-an interface end; 200-a chuck; 210-inner circular ring; 220-outer circular ring; 230-card surface; 240-card slot; 300-a clamping unit; 310-a jaw; 311-split jaws; 312-connecting type jaws; 312-a-latch.

Detailed Description

To make the objects, advantages and features of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be noted that the drawings are in simplified form and are not to scale, but rather are provided for the purpose of facilitating and distinctly claiming the embodiments of the present invention. Further, the structures illustrated in the drawings are often part of actual structures. In particular, the drawings may have different emphasis points and may sometimes be scaled differently.

As used in this specification, the singular forms "a," "an," and "the" include plural referents unless the content clearly dictates otherwise. As used in this specification, the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise.

The core of the utility model lies in providing an inhale oil pipe, inhale oil pipe pre-installation bent axle in-process the production of the copper scraps that has significantly reduced, reduced the potential safety hazard of oil suction device and compressor.

The utility model provides an oil suction pipe, an oil suction device and a compressor, wherein the oil suction pipe comprises an oil suction pipe body, a chuck and a clamping unit, and the oil suction pipe comprises an oil suction end and a connector end; the chuck is connected with the interface end and is used for being matched and connected with the port of the crankshaft; the clamping unit set up in on the chuck, the clamping unit includes more than two jack catchs, the jack catch be used for with the bent axle cooperatees, in order with inhale oil pipe connect in on the bent axle. Due to the arrangement, the installation performance of the oil suction pipe is improved, the problem that when the existing oil suction pipe is preassembled with the crankshaft, the oil suction pipe is preassembled to the crankshaft due to the fact that the connection area of the connection part of the existing oil suction pipe and the crankshaft is too large, the connection part is too long, and a large amount of copper scraps are generated in the process of pressing the oil suction pipe into the crankshaft is solved, and the potential safety hazard of a compressor is reduced.

The following description refers to the accompanying drawings.

Referring to fig. 1 to 8, fig. 1 is a schematic view of an oil suction pipe according to an embodiment of the present invention; fig. 2 is an exploded view of an oil suction pipe connected to a crankshaft according to an embodiment of the present invention; FIG. 3 is a cross-sectional view of the oil suction pipe shown in FIG. 2 after being coupled with a crankshaft; FIG. 4 is a schematic view of the oil suction pipe shown in FIG. 3 after being connected to a crankshaft; fig. 5 is a schematic view of another oil suction pipe according to an embodiment of the present invention; figure 6 is a cross-sectional view of an alternative suction pipe shown in figure 5; fig. 7 is a schematic view of a card slot according to an embodiment of the present invention; fig. 8 is an exploded view of the oil suction pipe body connected to the integrally formed clamping unit and the chuck according to an embodiment of the present invention.

Referring to fig. 1 to 4, the present invention provides an oil suction pipe, which includes: the oil suction pipe comprises an oil suction pipe body 100, a chuck 200 and a clamping unit 300, wherein the oil suction pipe body 100 comprises an oil suction end 110 and an interface end 120, the oil suction end 110 is used for sucking lubricating oil in a compressor by the oil suction pipe body 100, and in an exemplary embodiment, the interface end 120 is in a hollow cylindrical shape. The chuck 200 is connected to the interface end 120 for being coupled to a port of the crankshaft 10 to ensure that the lubricating oil can enter the crankshaft 10, and preferably, the clamping surface 230 of the chuck 200 is coupled to the port of the crankshaft 10 to ensure that the lubricating oil can enter the crankshaft 10 without overflowing. For guaranteeing chuck 200 with crankshaft 10 can interconnect, oil suction pipe still is provided with joint unit 300, joint unit 300 set up in chuck 200 deviates from one side of oil suction pipe body 100, joint unit 300 includes more than two jack catchs 310, jack catch 310 be used for with crankshaft 10 cooperatees, is connected oil suction pipe and crankshaft 10 through physical force such as extrusion force, elasticity and frictional force between jack catch 310 and crankshaft 10, in order to with oil suction pipe 100 connect in on the crankshaft 10.

The utility model provides an oil suction pipe, through the structure of addding chuck 200 and joint unit 300, when oil suction pipe is connected with bent axle 10, joint unit 300 and bent axle 10 cooperate and connect, chuck 200 blocks to the port of bent axle 10, changed the structure of current oil suction pipe, avoided when current oil suction pipe and bent axle 10 preassemble, because the area of connection of current oil suction pipe and bent axle 10 junction is too big, and the oil suction pipe current overlong with bent axle 10 junction leads to the oil suction pipe to press in to bent axle 10 in-process and produces a large amount of copper cuttings, avoided simultaneously that current oil suction pipe and bent axle 10 produce more copper cuttings when skew, and the production of copper cuttings makes the compressor have the potential safety hazard, the utility model discloses greatly reduced the production of copper cuttings, can improve the bent axle simultaneously because the oil suction pipe is pressed in and lead to the deformation of bent axle, for example the deformation of circularity, axiality of bent axle etc., the quality risk in the operation process of the oil suction device is reduced, and the potential safety hazard of the compressor is reduced.

Preferably, in an exemplary embodiment, as shown in fig. 1, the jaws 310 are the separating type jaws 311, the jaws 310 are single claw steel sheets uniformly arranged on the chuck 200 in the circumferential direction, each steel sheet is separated and disconnected, and a plurality of separating type jaws 311 are separately arranged on the chuck, preferably 5-8 separating type jaws. The jaw 310 has a square shape with one end and a trapezoidal shape with the other end, and the square end is connected to the chuck 200. In other embodiments, the latch unit 300 may be in various forms, for example, as shown in fig. 5-6, the latch 310 is a connection type latch 312, the connection type latch 312 is provided with a plurality of latches 312-a, that is, each latch 312-a is connected with each latch 312-a, the connection type latch 312 may be connected with two latches 312-a, or may be connected with three or four latches 312-a, and of course, in other embodiments, the latch 310 may be in a form that the separation type latch 311 and the connection type latch 312 are combined with each other. The shape of the claw 310 may also be various, for example, both ends of the claw 310 are designed to be square, or both ends are designed to be trapezoid, etc.

Preferably, as shown in fig. 2, in order to match the installation of the rotary vane 20, the oil suction pipe and the crankshaft 10 in the oil suction device of the compressor, the jaws 310 of the oil suction pipe need to be optimized, because the rotary vane 20 is symmetrically arranged, and in order to match the symmetrical arrangement of the rotary vane 20, the jaws 310 need to be symmetrically arranged, and in the exemplary embodiment, the number of the jaws 310 is set to be an even number.

Preferably, with continued reference to fig. 3, the chuck 200 is a circular ring, the inner ring 210 of the chuck 200 is connected with the interface end 120 of the oil suction pipe body 100 in a matching manner, and the outer ring 220 of the chuck 200 is not smaller than the inner diameter of the crankshaft 10. In an exemplary embodiment, in order to ensure the connection between the chuck 200 and the oil suction pipe body 100 and the connection between the chuck 200 and the crankshaft 10, the inner ring 210 of the chuck 200 is connected with the interface end 120, so that the situation that when the inner ring 210 is smaller than the interface end 120, the lubricating oil is reserved in the inner ring 210 and the interface end 120 is avoided; the outer ring 220 of the chuck 200 is sized to be larger than the inner diameter of the crankshaft 10 to ensure that the crankshaft can abut against the chucking surface 230 of the chuck 200.

Preferably, as shown in fig. 3, 6 and 7, the interior of the chuck 200 has an inner cavity, which is the locking groove 240 of the chuck 200. In an exemplary embodiment, one end surface of the chuck 200 is connected to the oil suction pipe body 100, the other end surface is connected to the jaws 300, a hollow structure is arranged between the two end surfaces of the chuck 200, the hollow structure is a clamping groove 240 of the chuck, and since the clamping groove 240 of the hollow structure is located in the circumferential space of the chuck 200, when the oil suction pipe rotates along with the crankshaft, impurities passing through the space of the chuck 200 can be centrifuged to the hollow structure of the circumferential space, i.e. the impurities can be collected to the clamping groove 240, the clamping groove 240 serves a dust collection function, and foreign matters are prevented from entering the oil suction pipe or the crankshaft 10.

Further, the oil suction pipe body 100, the chuck 200, and the clamping unit 300 are integrally formed, or the chuck 200 and the clamping unit 300 are integrally formed. As shown in fig. 6, in an exemplary embodiment, in order to reduce the manufacturing process, the oil suction pipe body 100, the chuck 200 and the clamping unit 300 are integrally formed. In other embodiments, as shown in fig. 8, the chuck 200 is integrally formed with the clamping unit 300, and the suction tube body 100 is separated from the chuck 200 and the clamping unit 300, in this way, different materials can be used for the suction tube body 100 and the chuck 200 and the clamping unit 300 to be combined. In this embodiment, the oil suction pipe is preferably made of steel, and therefore, foreign matter is not easily generated during the press-fitting process, and a sufficient clamping force can be maintained after the press-fitting. Of course, the oil suction pipe material can be other materials, such as high polymer materials.

In order to solve the technical problem, the utility model also provides an oil suction device, it includes: the oil suction pipe; and a crankshaft 10, one end of the crankshaft 10 being connected with the clamping unit 300 of the oil suction pipe. The oil suction device further comprises a rotary vane 20 arranged inside the crankshaft 10. Due to the arrangement, when the oil suction pipe is connected with the crankshaft 10, excessive copper scraps are avoided, the connection part of the oil suction pipe and the crankshaft 10 is smooth, excessive foreign matters and the like are avoided, the deformation of the crankshaft caused by the pressing-in of the oil suction pipe, such as the roundness and the coaxiality of the crankshaft, can be improved, and the quality risk of the oil suction device in the operation process is reduced. The beneficial effect of the oil suction device has the beneficial effect brought by the oil suction pipe, and the description is omitted here.

Further, in order to ensure the connection performance between the crankshaft and the oil suction pipe, the clamping unit 300 is in interference fit with the inner hole of the crankshaft 10, or the clamping unit 300 is in interference fit with the outer contour of the crankshaft 10. Preferably, the interference of the interference fit between the clamping unit and the crankshaft is greater than 0.5mm, and more preferably, the interference is 1.0-1.5 mm.

In order to solve the technical problem, the utility model also provides a compressor, it includes oil suction device. This compressor possesses the beneficial effect that oil suction device brought, and this no longer gives details here. The structure and principle of other parts of the compressor can be referred to the prior art and will not be explained herein.

In summary, in the oil suction pipe, the oil suction device and the compressor provided by the present invention, the oil suction pipe includes an oil suction pipe body, a chuck and a clamping unit, and the oil suction pipe includes an oil suction end and a connector end; the chuck is connected with the interface end and is used for being matched and connected with the port of the crankshaft; the clamping unit set up in on the chuck, the clamping unit includes more than two jack catchs, the jack catch be used for with the bent axle cooperatees, in order with inhale oil pipe connect in on the bent axle. Due to the arrangement, the installation performance of the oil suction pipe is improved, the problem that when the existing oil suction pipe is preassembled with the crankshaft, because the connection area of the connection part of the existing oil suction pipe and the crankshaft is too large, the oil suction pipe is preassembled to be pressed into the crankshaft to generate a large amount of copper scraps due to the fact that the connection part is too long is solved, meanwhile, the deformation of the crankshaft, such as the deformation of the roundness and the coaxiality of the crankshaft and the like, caused by the fact that the oil suction pipe is pressed into the crankshaft can be improved, the quality risk of the oil suction device in the operation process is reduced.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.

Claims (10)

1. An oil suction pipe, comprising:

the oil suction pipe body comprises an oil suction end and a connector end;

the chuck is connected with the interface end and is used for being matched and connected with the port of the crankshaft; and

the clamping unit is arranged on one side, away from the oil suction pipe body, of the chuck and comprises more than two clamping jaws, and the clamping jaws are used for being matched with the crankshaft to connect the oil suction pipe to the crankshaft.

2. The oil suction pipe of claim 1, wherein the jaw is constructed as a separation type jaw.

3. The oil suction pipe of claim 2 wherein the number of the jaws is even.

4. The oil suction pipe of claim 1 wherein the chuck is annular, an inner ring of the chuck is cooperatively connected with the interface end of the oil suction pipe body, and an outer ring of the chuck is not smaller than the inner diameter of the crankshaft.

5. The oil suction tube of claim 1, wherein the interior of the chuck has an interior cavity, the interior cavity being a pocket of the chuck.

6. The oil suction pipe of claim 1, wherein the oil suction pipe body, the chuck and the snap-fit unit are integrally formed, or the chuck and the snap-fit unit are integrally formed.

7. An oil suction device, comprising:

the oil suction pipe according to any one of claims 1-6; and

and one end of the crankshaft is connected with the clamping unit of the oil suction pipe.

8. The oil suction device of claim 7, wherein the clamping unit is in interference fit with an inner hole of the crankshaft, or the clamping unit is in interference fit with an outer contour of the crankshaft.

9. The oil suction device of claim 8, wherein the interference of the clamping unit and the crankshaft is greater than 0.5 mm.

10. A compressor, characterized by comprising an oil suction device according to any one of claims 7 to 9.

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