Lifting tool for extracting compressor oil and method for extracting compressor oil

Abstract

A lifting tool for extracting compressor oil according to the present disclosure comprises: a compressor upper lifting part that lifts an upper portion of a compressor; a compressor lower lifting part that lifts a lower portion of the compressor; and a frame that supports the compressor upper lifting part and the compressor lower lifting part.　A method for extracting compressor oil according to the present disclosure comprises: a step in which a compressor is placed on a carriage and carried in; a step in which a part for connecting a hoisting part of a compressor upper lifting part is attached to a hoisting part on an upper portion of the compressor; a step in which a part for connecting a pedestal of a compressor lower lifting part is attached to a pedestal on a lower portion of the compressor; a step in which the compressor is lifted by the compressor upper lifting part and the compressor lower lifting part so that the compressor is inclined with a discharge port of the compressor facing downward; and a step in which oil flowing out from the discharge port of the compressor is received in an oil receptacle.

Description

Compressor oil removal lifting device and compressor oil removal method

[0001] The present disclosure relates to a lifting device for draining compressor oil and a method for draining compressor oil.

[0002] Patent Document 1 listed below discloses a cart for an oil rotary vacuum pump, which is for mounting an oil rotary vacuum pump including a pump body and a drive motor, and which has a support base for supporting the oil rotary vacuum pump and a plurality of wheels attached to the underside of the support base, and is equipped with a jack-up mechanism for lifting up the end of the support base.

[0003] Japanese Patent Publication No. 2017-154540

[0004] When disposing of an air conditioner compressor, it is necessary to drain the refrigeration oil inside the compressor.Draining the refrigeration oil inside the compressor requires the compressor, which weighs several tens of kilograms, to be turned on its side, which requires two or more people to do the job.Not only is the oil slippery, but if the workers are not coordinated, there is also the risk of the compressor tipping over.

[0005] The present disclosure has been made to solve the above-mentioned problems, and an object of the present disclosure is to provide a compressor oil draining lifting device and a compressor oil draining method that can easily and safely drain oil from within a compressor.

[0006] The compressor oil draining lifting device according to the present disclosure includes an upper compressor lifting weight for lifting an upper portion of the compressor, a lower compressor lifting weight for lifting a lower portion of the compressor, and a tower supporting the upper and lower compressor lifting weights. The compressor oil draining method according to the present disclosure includes the steps of: carrying the compressor on a cart; attaching the lifting weight connection part of the upper compressor lifting weight part to the lifting part of the upper portion of the compressor; attaching the base connection part of the lower compressor lifting weight part to the base of the lower portion of the compressor; lifting the compressor with the upper and lower compressor lifting weight parts so that the compressor is tilted with its discharge port facing downward; and receiving oil flowing out from the compressor discharge port in an oil receiving part.

[0007] According to the present disclosure, it is possible to provide a lifting device for draining compressor oil and a method for draining compressor oil that can easily and safely drain oil from inside a compressor.

[0008] 1 is a perspective view of a lifting device for extracting compressor oil according to embodiment 1. FIG. 2 is a perspective view of a lifting device for extracting compressor oil according to embodiment 1. FIG. 3 is a perspective view showing a state in which a carriage is carried into a tower. FIG. 4 is a perspective view showing a state in which a compressor is placed on a carriage and carried into a tower. FIG. 5 is a perspective view showing a state in which a compressor is placed on a carriage and carried into a tower. FIG. 6 is a perspective view showing a state in which a compressor is lifted by an upper lifting unit and a lower lifting unit so that the compressor is tilted with its port facing downwards. FIG. 7 is a perspective view showing a state in which a compressor is lifted by an upper lifting unit and a lower lifting unit so that the compressor is tilted with its port facing downwards. FIG. 8 is a perspective view showing a state in which a lifting device for extracting compressor oil is not in use.

[0009] Hereinafter, embodiments will be described with reference to the drawings. Common or corresponding elements in each drawing are designated by the same reference numerals, and descriptions thereof will be simplified or omitted. The configurations shown in the following embodiments are examples of the technical ideas of the present disclosure, and may be combined with other known technologies, or multiple technical ideas described in the present disclosure may be combined. Furthermore, it is also possible to omit or modify part of the configuration without departing from the gist of the present disclosure.

[0010] 1 and 2 are perspective views of a lifting device 1 for draining compressor oil according to embodiment 1. As shown in Fig. 1 and 2, the lifting device 1 for draining compressor oil according to this embodiment includes an upper compressor lifting unit 2 for lifting an upper portion of the compressor 10, a lower compressor lifting unit 3 for lifting a lower portion of the compressor 10, and a tower 4 for supporting the upper compressor lifting unit 2 and the lower compressor lifting unit 3.

[0011] The compressor upper lifting weight section 2 has a lifting weight connection section 5 that connects to the lifting weight section 11 at the top of the compressor 10. The compressor lower lifting weight section 3 has a base connection section 6 that connects to the base 12 of the compressor 10. In this embodiment, by providing the compressor upper lifting weight section 2 and the compressor lower lifting weight section 3, it is possible to tilt the compressor 10 and lift it. In the illustrated example, the lifting weight connection section 5 and the base connection section 6 are each a hook-shaped member.

[0012] The tower 4 comprises four pillars 7, four cross members 8, and three beam members 9. The four pillars 7 are arranged at the four corners of a rectangle in plan view. Each of the four cross members 8 connects the tops of two adjacent pillars 7 out of the four pillars 7. The four cross members 8 are arranged in the shape of a rectangular frame.

[0013] Each of the three beam members 9 leaves one side of the rectangle as an opening 13, and connects the lower parts of two adjacent columns 7 of the four columns 7 along the other three sides. In the illustrated example, the beam members 9 connect the lowest parts of the columns 7 and are grounded. This allows workers to enter the inside of the tower 4, facilitating the work of connecting the lifting part connection part 5 and the base connection part 6 to the lifting part 11 and base 12 of the compressor 10. The three beam members 9 are arranged in a U-shape.

[0014] Each of the support columns 7, cross members 8, and beam members 9 is made of a member with an L-shaped cross section. A large number of elongated holes are formed in each of the support columns 7, cross members 8, and beam members 9, which contributes to weight reduction.

[0015] The compressor upper lifting weight section 2 is supported by a cross member 8 above the opening 13. The compressor lower lifting weight section 3 is supported by a cross member 8 on the opposite side of the cross member 8 above the opening 13.

[0016] 3 is a perspective view showing a state in which the carriage 90 has been carried into the tower 4. In this embodiment, the provision of the opening 13 without the beam member 9 allows the carriage 90 to be carried into the tower 4, and therefore the compressor 10 can be placed on the carriage 90 and carried into the tower 4.

[0017] 4 is a perspective view showing the compressor 10 placed on a cart 90 and carried into the tower 4. FIG. 4 shows the state in which the lifting part connector 5 of the compressor upper lifting weight part 2 is connected to the lifting part 11 at the top of the compressor 10. The compressor 10 has a cylindrical body with its central axis parallel to the vertical line.

[0018] 5 is a perspective view showing the compressor 10 placed on a cart 90 and carried into the tower 4. FIG. 5 shows the state in which the base connection part 6 of the compressor lower lifting weight part 3 is connected to the base 12 at the bottom of the compressor 10.

[0019] Each of the compressor upper lift weight unit 2 and the compressor lower lift weight unit 3 has an operating unit. In the illustrated example, the compressor upper lift weight unit 2 and the compressor lower lift weight unit 3 are chain blocks, and the operating units are made of chains. The operating units of the compressor upper lift weight unit 2 and the compressor lower lift weight unit 3 are located above half the height of the support column 7. This allows an operator to easily operate the operating units of the compressor upper lift weight unit 2 and the compressor lower lift weight unit 3 while standing.

[0020] 6, 7, and 8 are perspective views showing the compressor 10 being lifted by the compressor upper lifting unit 2 and the compressor lower lifting unit 3 so that the compressor 10 is tilted with its port facing downward. As shown in these figures, the compressor oil draining lifting device 1 is equipped with an oil receiving unit 14 for receiving oil flowing out of the ports of the compressor 10 and a splash prevention unit 15. The oil receiving unit 14 is disposed inside the space formed by the four support columns 7 of the tower 4. The splash prevention unit 15 is disposed between the floor and the oil receiving unit 14. The splash prevention unit 15 prevents the floor from being stained with oil. The splash prevention unit 15 may be, for example, cardboard. The oil receiving unit 14 in the illustrated example is an oil pan. The oil receiving unit 14 is not limited to the illustrated example, and may be a funnel-shaped member connected to a pipe.

[0021] The compressor oil draining method of this embodiment includes the steps of loading the compressor 10 onto a cart 90 and transporting it in, attaching the lifting part connection part 5 of the compressor upper lifting part 2 to the lifting part 11 at the top of the compressor 10, attaching the base connection part 6 of the compressor lower lifting part 3 to the base 12 at the bottom of the compressor 10, lifting the compressor 10 with the compressor upper lifting part 2 and the compressor lower lifting part 3 so that the compressor 10 is tilted with the port of the compressor 10 facing downwards, and receiving the oil flowing out from the port of the compressor 10 in the oil receiving part 14.

[0022] According to this embodiment, the refrigeration oil can be easily and safely drained from the compressor 10. Furthermore, the work can be performed by one person.

[0023] As shown in Figure 8, the distance L1 between the support column 7 connected to the cross member 8 supporting the compressor upper lifting weight section 2 and the support column 7 connected to the cross member 8 supporting the compressor lower lifting weight section 3 is preferably greater than the height of the compressor 10. This allows the compressor 10 to be lifted more stably.

[0024] It is desirable that the distance L2 (see FIG. 1) between the support columns 7 in the direction perpendicular to the distance L1 be larger than the distance L1, thereby making it possible to more reliably secure a space for the carriage 90 to enter.

[0025] As shown in Fig. 1, the tower 4 in this embodiment is provided with outrigger portions 16 that protrude from both ends of the side opposite the opening 13 toward the opposite side of the opening 13. This improves stability when the compressor 10 is lifted.

[0026] Furthermore, the tower 4 in this embodiment is provided with a brace portion 17 provided between the cross member 8 above the opening 13 and the support column 7 connected to the cross member 8. This makes it possible to more reliably maintain the distance between the support columns 7 located at both ends of the opening 13 where there are no beam members 9.

[0027] The base connection part 6 connected to the base 12 of the compressor 10 may be a part that supports the base 12 at two points. If the base connection part 6 supports the base 12 at two points, the port of the compressor 10 faces more directly downward, which is more advantageous in terms of discharging the refrigeration oil without leaving any residue.

[0028] 9 is a perspective view showing the compressor oil draining lifting device 1 when not in use. As shown in FIG. 9, when the compressor oil draining lifting device 1 is not in use, objects can be placed inside the tower 4, which has the advantage that the compressor oil draining lifting device 1 does not take up much space.

[0029] Although the embodiment has been described above, the compressor oil draining lifting tool of the present disclosure is not limited to the illustrated example. For example, in the illustrated example, the four support posts 7 are arranged at the four corners of a rectangle in plan view, but this is not limiting, and the four support posts 7 may be arranged at the four corners of a trapezoid in plan view.

[0030] The compressor oil draining lifting tool of the present disclosure may also include a heating device that warms the compressor 10. By warming the compressor 10, the viscosity of the refrigerating machine oil decreases, allowing the refrigerating machine oil to be drained in a short time.

[0031] In addition, the lifting tool for removing compressor oil of the present disclosure may be equipped with an automatic lifting device that automatically lifts the compressor 10 so that the inclination angle and lifting height of the compressor 10 are appropriate.

[0032] REFERENCE SIGNS LIST 1 lifting device for removing compressor oil, 2 upper lifting part of compressor, 3 lower lifting part of compressor, 4 tower, 5 lifting part connection part, 6 base connection part, 7 support, 8 cross member, 9 beam member, 10 compressor, 11 lifting part, 12 base, 13 opening, 14 oil receiving part, 15 anti-scattering part, 16 outrigger part, 17 brace part, 90 bogie

Claims

1. A lifting device for draining compressor oil, comprising: an upper compressor lifting weight for lifting the upper part of the compressor; a lower compressor lifting weight for lifting the lower part of the compressor; and a tower for supporting the upper compressor lifting weight and the lower compressor lifting weight.

2. A lifting device for draining compressor oil as described in claim 1, wherein the upper lifting weight portion of the compressor has a lifting part connection portion that is connected to a lifting part at the top of the compressor, and the lower lifting weight portion of the compressor has a base connection portion that is connected to a base of the compressor.

3. The tower comprises four pillars arranged at the four corners of a rectangle in plan view, four cross members connecting the upper parts of every two adjacent pillars of the four pillars, and three beam members connecting the lower parts of every two adjacent pillars of the four pillars on the other three sides, leaving one side of the rectangle as an opening, wherein the compressor upper lifting weight section is supported by the cross member above the opening, and the compressor lower lifting weight section is supported by the cross member that is the opposite side of the cross member above the opening. A lifting weight for draining compressor oil as described in claim 1 or claim 2.

4. A lifting device for draining compressor oil as described in claim 3, wherein each of the compressor upper lifting section and the compressor lower lifting section has an operating section, and the operating section is located above half the height of the support column.

5. A lifting device for draining compressor oil as described in claim 3 or 4, wherein the tower is provided with outrigger portions that protrude from both ends of the side opposite the opening toward the side opposite the opening.

6. A lifting device for draining compressor oil as described in any one of claims 3 to 5, wherein the tower has a brace portion provided between the cross member above the opening and the support column connected to the cross member.

7. A lifting tool for extracting compressor oil as described in any one of claims 1 to 6, comprising an oil receiving section for receiving oil flowing out of the compressor and a splash prevention section, the oil receiving section being arranged inside the space formed by the tower, and the splash prevention section being arranged between the floor surface and the oil receiving section.

8. A method for draining oil from a compressor, comprising the steps of: placing the compressor on a cart and transporting it in; attaching the lifting part connection part of the compressor upper lifting part to the lifting part at the top of the compressor; attaching the base connection part of the compressor lower lifting part to the base at the bottom of the compressor; lifting the compressor with the compressor upper lifting part and the compressor lower lifting part so that the compressor is tilted with its discharge port facing downwards; and receiving oil flowing out from the discharge port of the compressor in an oil receiving part.

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