CN219113790U

CN219113790U - Top foil sand blasting device for elastic foil bearing

Info

Publication number: CN219113790U
Application number: CN202222745237.5U
Authority: CN
Inventors: 姚嘉益; 张洋; 李姗; 陈茂才; 孙嘉男
Original assignee: 704th Research Institute of CSIC
Current assignee: 704th Research Institute of CSIC
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-06-02
Anticipated expiration: 2032-10-18

Abstract

The utility model relates to a top foil sand blasting device of an elastic foil bearing, which comprises a workpiece sand blasting up-and-down moving mechanism, a workpiece sand blasting rotating mechanism, a workpiece sand blasting tool and a sand containing barrel, wherein the workpiece sand blasting up-and-down moving mechanism is connected with the workpiece sand blasting rotating mechanism, the top of the workpiece sand blasting rotating mechanism is connected with the workpiece sand blasting tool and the sand containing barrel through a bottom plate, and the workpiece sand blasting up-and-down moving mechanism and the workpiece sand blasting rotating mechanism drive the workpiece sand blasting tool and the sand containing barrel to realize the synthesis of rotation and up-and-down movement, so that sand blasting can be performed along a positive and negative spiral track. The up-and-down motion and rotation around a fixed shaft of the foil are realized through the screw rod and the supporting seat, and the rotation and the moving speed can be controlled through the screw pitch, the line number and the motor rotating speed of the screw rod; the foil is fixedly clamped through the workpiece sand blasting tool, so that deformation in the foil sand blasting process is reduced; the sand blasting track is a positive and negative spiral, and the track is not repeated due to the existence of the ratchet wheel, so that uniform sand blasting is realized.

Description

Top foil sand blasting device for elastic foil bearing

Technical Field

The utility model relates to a foil bearing sand blasting device, in particular to a sand blasting device for a top layer flat foil of a foil bearing.

Background

Foil bearings are widely used in high-speed rotating machinery, and the foil is subjected to a sand blasting procedure during processing and manufacturing, so that impurities on the surface of the foil are cleaned, and the smooth surface of the foil reaches a certain roughness, thereby being beneficial to improving the binding force during subsequent coating spraying. However, because of lack of a special sand-blasting spraying device for the foil, the foil is usually manually held during sand blasting, high-pressure gas is used for strongly spraying sand flow on the surface of the foil, the size and thickness of the substrate foil are very thin, the periphery of the foil is free and unconstrained, the foil is easy to deform, uneven sand blasting is caused, and the rejection rate is high; and at present, manual sand blasting spraying operation is generally adopted, and the positioning accuracy and sand blasting efficiency are low.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide the top foil sand blasting device for the elastic foil bearing, which is used for realizing uniform and efficient sand blasting, reducing the labor intensity of workers and improving the sand blasting efficiency and quality.

In order to achieve the above purpose, the present utility model proposes the following technical scheme:

the utility model provides an elastic foil bearing top layer foil sand blasting device, includes work piece sandblast tilting mechanism, work piece sandblast rotary mechanism, work piece sandblast frock and flourishing sand bucket, work piece sandblast tilting mechanism connects work piece sandblast rotary mechanism, and work piece sandblast rotary mechanism top passes through the bottom plate and connects work piece sandblast frock and flourishing sand bucket, drives work piece sandblast frock and flourishing sand bucket by work piece sandblast tilting mechanism and work piece sandblast rotary mechanism and realizes rotatory and the synthesis of tilting motion, realizes that the sandblast can go on along positive and negative spiral track.

Further, the work piece sandblast up-and-down movement mechanism includes motor, shaft coupling, lead screw, base, bearing, fixed plate, slide, nut, the motor is fixed in the base bottom, and the motor passes through lead screw and fixed nut and connects the slide, realizes the up-and-down movement of slide, and the slide passes through the supporting seat and connects the bottom plate.

Further, the workpiece sand blasting rotating mechanism is provided with a ratchet mechanism at the tail end of the screw rod, the ratchet mechanism is connected with the rotating plate, the rotating plate is connected with the supporting seat, the motor drives the rotating plate and the supporting seat to rotate through the screw rod and the ratchet mechanism, and the track is not repeated by utilizing the forward and reverse rotation of the motor and the ratchet wheel, so that the sand blasting uniformity is ensured.

Further, the workpiece sand blasting tool and the sand holding barrel are connected to the bottom plate through bolts and magnets, and the workpiece sand blasting tool and the bottom plate are positioned in the repeated assembly and disassembly processes through the magnets.

Further, the workpiece sand blasting tool comprises a first tool and a second tool, the first tool and the second tool are pressed into a whole through three groups of bolts which are 120 degrees each other, the inner diameter of the second tool is determined by the length of the foil, the inner side of the second tool is grooved, the groove depth is determined by the width of the foil, and the second tool are a certain distance away from the lower surface of the inner side of the second tool, and are used for fixing the foil.

Further, during sand blasting, the spray pipe connected with the air source stretches into the second tool through the top plate, the foil clamped in the second tool is blasted, and uniform sand blasting is realized by controlling the pressure of the external air source and regulating the rotating speed of the stabilizing motor, so that the foil deformation is avoided.

Further, the workpiece sand blasting up-and-down moving mechanism increases the height of a first tool in the workpiece sand blasting tool by increasing the stroke of the screw rod, so that a plurality of second workpieces can be stacked up and down.

The beneficial effects of the utility model are as follows:

the utility model realizes the up-and-down motion and rotation around the fixed shaft of the foil through the screw rod and the supporting seat, and the rotation and the moving speed can be controlled through the screw pitch, the line number and the motor rotating speed of the screw rod; the first tool and the second tool are used for fixedly clamping the foil, so that deformation in the process of blasting the foil is reduced; the accurate positioning of the first tool, the second tool and the spray pipe is realized through four pairs of bolts and magnets; the sand blasting track is a positive and negative spiral, and the track is not repeated due to the existence of the ratchet wheel, so that uniform sand blasting is realized.

Drawings

FIG. 1 is a cross-sectional view of the overall structure of the top foil blasting apparatus of the elastomeric foil bearing of the present utility model;

FIG. 2 is a schematic diagram of a combination structure of two tools;

fig. 3 is a view of a magnet bolting.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the top foil sand blasting device of the elastic foil bearing comprises a motor 16, a coupling 13, a screw 14, a base 17, a bearing 10, a magnet 6, a bolt 7, a supporting seat 8, a rotating plate 9, a fixed plate 12, a sliding plate 15, a nut 11, a first tool 4, a second tool 5, a spray pipe 2, a top plate 1, a sand holding barrel 3, a ratchet mechanism 18 and a bottom plate 19.

The motor 16 is fixed at the bottom of the base 17, the motor 16 drives the screw rod 14 to rotate through the coupler 13, the fixing nut 11 in the middle of the screw rod 14 plays a guiding role to realize the up-and-down movement of the slide plate 15, and the supporting seat 8 is rotationally connected with the slide plate 15 through the bearing 10 and simultaneously moves up and down; a ratchet mechanism 18 is arranged at the tail end of the screw rod 14, and the ratchet mechanism 18 drives the rotating plate 9 to rotate; the rotating plate 9 is fixedly connected with the supporting seat 8, the upper end face of the supporting seat 8 is connected with the sand containing barrel 3 through the bottom plate 19, the bolt 7 and the magnet 6, the bottom of the sand containing barrel 3 is connected with the first tool 4 and the second tool 5 through the magnet 6, and the sand containing barrel 3, the first tool 4, the second tool 5, the magnet 6, the bolt 7 and the bottom plate 19 simultaneously realize rotation and up-down movement under the action of the supporting seat 8. The spray pipe 2 stretches into the second tooling 5 through the top plate 1, and the foil fixedly clamped in the second tooling 5 is sandblasted.

As shown in fig. 1 and 3, four bolt holes are formed in the bottom plate 19, the magnet 6 is fixed on the bottom plate 19 by using the bolts 7, the bottom of the tool I4 has the same structure, and the positioning in the repeated assembly and disassembly processes of the tool I4 and the bottom plate 19 is realized by four pairs of magnets; the top plate 1 and the spray pipe 2 are fixedly and uniformly disassembled.

The tool II 5 and the tool I4 are pressed into a whole through three groups of bolts which are 120 degrees each other, the inner diameter of the tool II 5 is determined by the length of the foil, the inner side is grooved, the groove depth is determined by the width of the foil, and a certain distance is reserved below the groove depth for fixing the foil.

In actual production, the stroke of the screw rod 14 can be properly increased, the height of the first tool 4 is increased, and the second tools 5 are vertically stacked together, so that the efficiency is further improved.

After the primary sand blasting is finished, the motor can be controlled to rotate reversely, the screw rod 14 and the components on the supporting seat 8 can be lowered, and sand blasting can be continued in the lowering process.

The sand blasting track is positive and negative spiral, and the track is not repeated due to the ratchet wheel 18, so that uniform sand blasting is realized, an external air source is utilized and the pressure is controlled during sand blasting, the uniform sand blasting can be realized by regulating the rotating speed of the motor, and the deformation of the foil is avoided.

Claims

1. The utility model provides an elasticity foil bearing top layer foil sand blasting unit which characterized in that: the device comprises a workpiece sand blasting up-and-down moving mechanism, a workpiece sand blasting rotating mechanism, a workpiece sand blasting tool and a sand containing barrel, wherein the workpiece sand blasting up-and-down moving mechanism is connected with the workpiece sand blasting rotating mechanism, the top of the workpiece sand blasting rotating mechanism is connected with the workpiece sand blasting tool and the sand containing barrel through a bottom plate, and the workpiece sand blasting rotating mechanism and the workpiece sand blasting up-and-down moving mechanism drive the workpiece sand blasting tool and the sand containing barrel to realize the synthesis of rotation and up-and-down moving motion, so that sand blasting can be performed along a positive and negative spiral track.

2. The elastomeric foil bearing top foil blasting apparatus of claim 1, wherein: the workpiece sand blasting up-and-down moving mechanism comprises a motor, a shaft coupling, a screw rod, a base, a bearing, a fixing plate, a sliding plate and a nut, wherein the motor is fixed at the bottom of the base, the motor is connected with the sliding plate through the screw rod and the fixing nut, the up-and-down movement of the sliding plate is realized, and the sliding plate is connected with a bottom plate through a supporting seat.

3. The elastomeric foil bearing top foil blasting apparatus of claim 2, wherein: the workpiece sand blasting rotating mechanism is characterized in that a ratchet mechanism is arranged at the tail end of the screw rod and is connected with a rotating plate which is connected with a supporting seat.

4. The elastomeric foil bearing top foil blasting apparatus of claim 1, wherein: the bottom plate is connected with the workpiece sand blasting tool and the sand containing barrel through bolts and magnets.

5. The elastomeric foil bearing top foil blasting apparatus of claim 1, wherein: the workpiece sand blasting tool comprises a first tool and a second tool, the first tool and the second tool are pressed into a whole through three groups of bolts which are 120 degrees each other, the inner diameter of the second tool is determined by the length of the foil, the inner side of the second tool is grooved, the groove depth is determined by the width of the foil, and the second tool are a certain distance away from the lower surface of the foil and are used for fixing the foil.

6. The elastomeric foil bearing top foil blasting apparatus of claim 5, wherein: during sand blasting, a spray pipe connected with an air source stretches into the second tool through the top plate and is used for sand blasting the foil fixedly clamped in the second tool.

7. The elastomeric foil bearing top foil blasting apparatus of claim 1, wherein: the stroke of the screw rod in the workpiece sand blasting up-and-down moving mechanism can be increased.