Vortex tube type bearing assembling and disassembling auxiliary device

Abstract

The utility model discloses a vortex tube type bearing assembling and disassembling auxiliary device which structurally comprises a tool box and a vortex tube movably connected with the tool box, the air inlet end of the vortex tube is connected with external compressed air, the cold air end of the vortex tube is connected with an annular air knife, and the hot air end of the vortex tube is connected with a hot air end quick connecting tube. A tail end pipe opening of the hot air end quick connecting pipe is a closed end, a bearing inner ring spacer bush is assembled on the hot air end quick connecting pipe, and a vent hole communicated with an inner cavity of the hot air end quick connecting pipe is formed in the bearing inner ring spacer bush. After the technical scheme is adopted, the vortex tube type bearing assembling and disassembling auxiliary device provided by the utility model is connected with compressed air of an air chamber on site, and the compressed air is converted into cold and hot air flows through the vortex tube so as to heat and cool parts, so that the assembling interference magnitude between a bearing and a shaft is reduced, and the bearing is disassembled or replaced and installed; the device is safe and convenient, improves the maintenance efficiency, and facilitates the protection of spare parts.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of vortex tube type bearing assembly and disassembly auxiliary device. BACKGROUND

[0002] In the equipment inspection and maintenance process of polydimethylsilane, polycarbosilane and other production areas, when bearing parts need to be replaced online, due to the high fire and explosion prevention requirements of related processes and the limited maintenance space, the conventional puller, flame heating and other methods are not suitable for disassembling and assembling the bearing due to the limited maintenance space and working conditions. SUMMARY

[0003] The utility model aims at providing a kind of vortex tube type bearing assembly and disassembly auxiliary device to solve the problems raised in the above background technology.

[0004] To solve the above technical problems, the utility model adopts the technical scheme of a kind of vortex tube type bearing assembly and disassembly auxiliary device, which includes a tool box, a vortex tube movably connected to the tool box, the vortex tube gas inlet end is connected to the external compressed air, the vortex tube cold gas end is connected with annular air knife, the vortex tube hot gas end is connected with hot gas end quick connector pipe, the end of the hot gas end quick connector pipe is closed end, the hot gas end quick connector pipe is equipped with bearing inner ring spacer for fixing the bearing, the bearing inner ring spacer is provided with air hole communicated with the inner cavity of hot gas end quick connector pipe.

[0005] Preferably, a hot gas annular groove end for fixing the bearing inner ring spacer is provided on the hot gas end quick connector pipe, and the hot gas annular groove end is provided with air port communicated with the inner cavity of the hot gas end quick connector pipe.

[0006] Preferably, the air hole is provided in the annular groove of the bearing inner ring spacer, and the number of air holes and air ports is 6, and the 6 air ports are equally spaced on the hot gas annular groove end.

[0007] Preferably, the hot gas end quick connector pipe is also connected with spacer positioning snap spring.

[0008] Preferably, the hot gas end quick connector pipe is also connected with spacer positioning snap spring.

[0009] Preferably, the tool box is also connected with a clamp pad for fixing the vortex tube.

[0010] Preferably, the hot gas end quick connector pipe is also connected with spacer positioning snap spring.

[0011] Preferably, the tool box is also connected with a clamp pad for fixing the vortex tube.

[0012] Preferably, the tool box is also connected with a flip door plate.

[0013] Preferably, the vortex tube air inlet end and the vortex tube cold air end are equipped with quick connectors.

[0014] From the above description of the structure of the utility model, compared with the prior art, the utility model has the following advantages:

[0015] The vortex tube type bearing assembling and disassembling auxiliary device provided by the utility model skillfully utilizes the existing compressed air on site, converts the compressed air into two air streams of cold and hot through a vortex tube, and when assembling or disassembling the bearing, the hot air stream is used to precisely heat the parts first, so that the bearing and the shaft are caused to expand due to the thermal expansion effect, the assembly interference problem is easily solved, after the operation is completed, the cold air knife is rapidly switched, the parts are stably returned to the original position by utilizing the cold shrinkage characteristics, the assembly interference between the bearing and the shaft is reduced by the thermal expansion and cold shrinkage physical characteristics generated by the temperature difference, smooth assembly and disassembly are achieved, the zero parts are protected and the work efficiency is improved, the device is convenient to disassemble and assemble, simple in structure, meets the on-site maintenance working condition requirements, and can be used as a special tool for maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated herein in their entirety. The embodiments illustrated in the drawings are provided to explain the present application and are not intended to limit the present application. In the drawings:

[0017] Figure 1 Fig. 1 is a structural schematic view of a vortex tube type bearing assembling and disassembling auxiliary device according to the utility model;

[0018] Figure 2 Fig. 2 is a structural schematic view of a hot air end quick connector of a vortex tube type bearing assembling and disassembling auxiliary device according to the utility model;

[0019] Figure 3 Fig. 3 is a structural schematic view of a tool box of a vortex tube type bearing assembling and disassembling auxiliary device according to the utility model. DETAILED DESCRIPTION

[0020] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0021] In the description of the utility model, need understanding is, the term "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "internal", "external" and so on indicate the orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and is not indicating or implying that the device or element indicated must have a particular orientation, a particular orientation and operation, therefore cannot be understood as a restriction on the utility model. In addition, the terms "first", "second" and so on are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and so on can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0022] In the description of the utility model, it should be explained that, unless otherwise expressly provided and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be mechanically connected, can be electrically connected, can be directly connected, can be indirectly connected through an intermediate medium, and can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0023] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0024] Embodiment

[0025] Reference Figure 1 , Figure 2 and Figure 3The utility model provides a kind of vortex tube bearing loading and unloading auxiliary device, its structure includes tool box 1, vortex tube 2 being movably connected with tool box 1, vortex tube air inlet end 21 is connected with outside compressed air, vortex tube cold air end 22 is connected with annular air knife 3, wherein annular air knife 3 suitable for shaft diameter is selected, when bearing is installed, when it is needed to cool shaft, it is used into shaft.Suction hole 51 is set in annular groove 5a of bearing inner ring spacer sleeve 5, and the number of air vent 41 and air hole 51 is 6, and the six air vent 41 is distributed on hot gas annular groove end 4a at equal interval.Adopt this structure, air vent 41 and air hole 51 are set, and it is favorable to accurately heat bearing with hot air stream, to easily solve assembly interference problem.

[0026] Hot gas annular groove end 4a is set on hot gas end quick connection pipe 4 for fixed bearing inner ring spacer sleeve 5, and air vent 41 is set in the inner cavity of hot gas end quick connection pipe 4 for fixed bearing inner ring spacer sleeve 5, and the number of air vent 41 and air hole 51 is 6, and the six air vent 41 is distributed on hot gas annular groove end 4a at equal interval.Adopt this structure, air vent 41 and air hole 51 are set, and it is favorable to accurately heat bearing with hot air stream, to easily solve assembly interference problem.

[0027] Hot gas end quick connection pipe 4 is also connected with spacer sleeve positioning snap spring 6, and hot gas end quick connection pipe 4 is also set with snap spring groove 6a for fixed spacer sleeve positioning snap spring 6 on the side close to vortex tube 2.Adopt this structure, the purpose of installing spacer sleeve positioning snap spring 6 is to position bearing inner ring spacer sleeve 5.

[0028] Tool box 1 is also connected with clamp pad 7 for fixed vortex tube 2.Adopt this structure, the number of clamp pad 7 is 2, and clamp pad 7 is used to fix and support vortex tube 2.

[0029] Hot gas end quick connection pipe 4 is set with support leg 8 on the side away from vortex tube hot gas end 23, and tool box 1 is set with clamping groove 81 for fixed support leg 8.Adopt this structure, the support leg 8 is buckled on the clamping groove 81 of tool box 1, to support and position hot gas end quick connection pipe 4.

[0030] The tool box 1 is connected with a turnover door plate 9. With the structure, the clip pad 7, the hot gas end quick connector pipe 4, the vortex tube 2, the bearing inner ring spacer 5, the spacer positioning clip spring 6 and the annular air knife 3 can be conveniently stored.

[0031] The vortex tube gas inlet end 21 and the vortex tube cold gas end 22 are both equipped with quick connectors. With the structure, the PU pipe with the appropriate caliber can be connected.

[0032] Working principle:

[0033] 1. When the bearing needs to be heated and installed, the bearing 10 is installed on the bearing inner ring spacer 5 for heating. The hot gas flow of the vortex tube 2 can accurately heat the bearing, so that the bearing and the shaft are expanded due to the thermal expansion effect, and the fit clearance is increased. After the operation is completed, the annular air knife 3 is quickly switched to use the cold shrinkage characteristics to make the parts return to the original position. Through the thermal expansion and cold shrinkage physical characteristics generated by the temperature difference, the assembly interference between the bearing and the shaft is reduced, the stable assembly and disassembly are achieved, which is beneficial to protect the spare parts and improve the work efficiency.

[0034] 2. When the bearing on the device needs to be disassembled, the hot gas end quick connector pipe 4 can be removed, the flexible metal pipe is connected to the vortex tube hot gas end 23 to heat the bearing, and then the bearing is disassembled.

[0035] 3. When the annular air knife 3 is not used, the flexible pipe can be connected to the vortex tube cold gas end 22 to flexibly cool the parts to be cooled.

[0036] The above only describes the preferred embodiments of the present application, and does not limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A vortex tube bearing installation aid characterized by: Its structure includes a tool box, a vortex tube movably connected with the tool box, an air inlet end of the vortex tube connected with external compressed air, an annular air knife connected with a cold air end of the vortex tube, a hot gas end quick connecting pipe connected with a hot gas end of the vortex tube, a closed end of a terminal pipe of the hot gas end quick connecting pipe, a bearing inner ring spacer sleeve assembled on the hot gas end quick connecting pipe for fixing a bearing, and air holes communicated with an inner cavity of the hot gas end quick connecting pipe and arranged on the bearing inner ring spacer sleeve.

2. A vortex tube bearing handling aid according to claim 1, wherein: A hot gas annular groove end for fixing the bearing inner ring spacer sleeve is arranged on the hot gas end quick connecting pipe, and air vents communicated with the inner cavity of the hot gas end quick connecting pipe are arranged on the hot gas annular groove end.

3. A swirl pot bearing handling aid according to claim 2, wherein: The air holes are arranged in an annular groove of the bearing inner ring spacer sleeve, and the number of the air holes and the air vents is 6, and the 6 air vents are equally spaced on the hot gas annular groove end.

4. A vortex bearing loading and unloading assist device according to claim 1, wherein: The hot gas end quick connecting pipe is further connected with a spacer positioning snap spring.

5. A swirl pot bearing handling aid according to claim 4, wherein: A snap spring groove for fixing the spacer positioning snap spring is further arranged on a side of the hot gas end quick connecting pipe close to the vortex tube.

6. A vortex bearing loading and unloading assist device according to claim 1, wherein: The tool box is further connected with a clamp pad for fixing the vortex tube.

7. A vortex bearing loading and unloading assist device according to claim 1, wherein: Supporting feet are arranged on a side of the hot gas end quick connecting pipe away from the hot gas end of the vortex tube.

8. A swirl pot bearing handling aid according to claim 7, wherein: A clamping groove for fixing the supporting feet is arranged on the tool box.

9. A vortex bearing loading and unloading assist device according to claim 1, wherein: A turnover door plate is connected to the tool box.

10. A vortex bearing loading and unloading assist device according to claim 1, wherein: The air inlet end and the cold air end of the vortex tube are both provided with quick plug-in connectors.

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