Stirrer shaft supporting structure

Abstract

The utility model provides a stirrer shaft supporting structure which comprises a shaft sleeve and a stirrer shaft, the stirrer shaft is vertically embedded in the shaft sleeve, a sealing cylinder is fixed on the outer wall of the lower portion of the stirrer shaft, an inner sealing strip and an outer sealing strip are fixed on the upper portion of the interior of the sealing cylinder, and outer ball bearings are fixed in the middle of the shaft sleeve and below the middle of the shaft sleeve. A limiting rod is vertically fixed below the middle of the shaft sleeve, an inner ball bearing is fixed to the outer wall of the limiting rod, a supporting plate is fixed below the outer wall of the shaft sleeve, the limiting rod is vertically embedded below the interior of the supporting plate, a mounting plate is fixed to the bottom of the limiting rod, and a connecting column is vertically fixed to the middle of the upper surface of the mounting plate. The stirrer shaft and the bearing can be subjected to double sealing, the situation that stirred materials enter a gap between the stirrer shaft and the shaft sleeve is avoided, meanwhile, the outer wall and the inner wall of the stirrer shaft can be subjected to double limiting supporting, the supporting and limiting effects on the stirrer shaft are good, and the stirrer shaft rotates more smoothly.

Description

TECHNICAL FIELD

[0001] The utility model relates to mixer accessory technical field especially, relates to a kind of stirrer shaft support structure. BACKGROUND

[0002] Stirrer generally includes driving device, and the vertical setting stirrer shaft connected with driving device and the stirring blade fixed on stirrer shaft are made of, to make the rotation process of stirrer shaft more stable, support assembly will be set in the bottom of stirrer shaft, the traditional vertical shaft type stirrer stirring shaft is a whole shaft, stirring tank bottom is welded with shaft sleeve seat, wear-resistant sleeve is loaded in the shaft sleeve seat, stirring shaft bottom end is inserted in wear-resistant sleeve, shaft sleeve seat is located at the bottom of stirring tank, in the stirring process, impurities are easy to enter the gap between stirring shaft and sleeve, can accelerate the wear of stirring shaft bottom end and sleeve, with the aggravation of wear, stirring shaft bottom end swing amplitude gradually increases, will cause impact damage to shaft sleeve seat even lead to tank leakage, the support limiting effect of stirrer shaft is poor. SUMMARY

[0003] The utility model aims at solving the problems in the above background art, and provides a kind of stirrer shaft support structure.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A kind of stirrer shaft support structure, including sleeve and stirrer shaft, the inside of the sleeve is vertically embedded with stirrer shaft, the lower outer wall of the stirrer shaft is fixed with sealing cylinder, the inside upper of the sealing cylinder is fixed with inner sealing strip and outer sealing strip, the middle and the lower of the middle of the sleeve are fixed with outer ball bearing, the lower of the middle of the sleeve is vertically fixed with limit column, the outer wall of the limit column is fixed with inner ball bearing, the outer wall lower of the sleeve is fixed with support plate, the inside lower of the support plate is vertically embedded with limit rod, the bottom of the limit rod is fixed with mounting plate, the upper surface middle of the mounting plate is vertically fixed with connecting column, the top and bottom of the connecting column are all fixedly connected with buffer spring.

[0006] Preferably, the top outside of the sleeve is provided with sealing groove, the inner sealing strip and the outer sealing strip are fixed on the inner side and the outer side of the sealing groove respectively, the bottom end of the sealing cylinder is vertically embedded in the sealing groove, and the cross-sectional area of the sealing groove is consistent with the cross-sectional area of the sealing cylinder.

[0007] Preferably, the stirrer shaft is vertically embedded in the middle of the sleeve, the spacing between the outer wall of the stirrer shaft and the inner wall of the sleeve is 0.1-1cm, and the stirrer shaft is vertically embedded in the middle of the outer ball bearing.

[0008] Preferably, the connecting column above the mounting plate is embedded in the extension groove in the middle of the bottom end of the shaft sleeve, the buffer springs at the upper and lower ends of the connecting column are connected between the top and bottom of the extension groove respectively, and the shaft sleeve is vertically lifted up and down on the outer side of the connecting column.

[0009] Preferably, the limiting column is embedded in the through hole below the inside of the stirrer shaft, and the outer wall of the inner ball bearing on the limiting column is tightly attached to the inner wall of the through hole.

[0010] Preferably, the cross-sectional area of the limiting rod is consistent with the cross-sectional area of the sliding groove inside the supporting plate, and the supporting plate is lifted up and down in the vertical direction of the outer wall of the limiting rod.

[0011] During the rotation of the stirrer shaft, the sealing cylinder below the stirrer shaft is embedded in the sealing groove at the top of the shaft sleeve, so that the sealing cylinder of the stirrer shaft rotates in the sealing groove at all times, and the inner sealing strip and the outer sealing strip in the sealing groove can be tightly attached to the outer wall and the inner wall of the sealing cylinder at the same time, realizing double sealing of the gap between the stirrer shaft and the shaft sleeve, effectively avoiding the stirring material from being stuck in the gap between the stirrer shaft and the shaft sleeve, reducing the wear between the stirrer shaft and the shaft sleeve, making the rotation of the stirrer shaft more stable, and the outer wall of the stirrer shaft is tightly attached to the outer ball bearing and the inner ball bearing in the limiting column, realizing double limiting support of the stirrer shaft, avoiding the swing of the stirrer shaft during rotation, and making the rotation of the stirrer shaft more smooth.

[0012] When the stirrer shaft shakes during rotation, the stirrer shaft pushes the shaft sleeve to move downward, so that the shaft sleeve extrudes and pulls the buffer springs at the upper and lower ends of the connecting column to deform, the deformation of the buffer springs buffers the up-and-down shaking force of the stirrer shaft, avoiding the direct impact of the larger force of the stirrer shaft on the shaft sleeve, and achieving better support and limiting effect of the stirrer shaft. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is an overall structure schematic diagram in the utility model;

[0014] Fig. 2 It is an overall structure front view schematic diagram in the utility model;

[0015] Fig. 3 It is an explosion schematic diagram of the shaft sleeve local structure in the utility model.

[0016] LEGEND:

[0017] Shaft sleeve 1, stirrer shaft 2, sealing cylinder 201, inner sealing strip 202, outer sealing strip 203, outer ball bearing 204, limiting column 205, inner ball bearing 206, supporting plate 3, limiting rod 301, mounting plate 302, connecting column 303, buffer spring 304. DETAILED DESCRIPTION

[0018] Embodiment 1, reference Figs. 1-3 A stirrer shaft support structure, comprising a shaft sleeve 1 and a stirrer shaft 2, the inside of the shaft sleeve 1 is vertically embedded with the stirrer shaft 2, the lower outer wall of the stirrer shaft 2 is fixed with a sealing cylinder 201, the inside upper part of the sealing cylinder 201 is fixed with an inner sealing strip 202 and an outer sealing strip 203, the middle part and the lower part of the middle part of the shaft sleeve 1 are fixed with an outer ball bearing 204, the lower part of the middle part of the shaft sleeve 1 is vertically fixed with a limiting column 205, the outer wall of the limiting column 205 is fixed with an inner ball bearing 206, the outer wall of the lower part of the shaft sleeve 1 is fixed with a support plate 3, the inside lower part of the support plate 3 is vertically embedded with a limiting rod 301, the bottom of the limiting rod 301 is fixed with a mounting plate 302, the upper surface of the middle part of the mounting plate 302 is vertically fixed with a connecting column 303, the top and bottom of the connecting column 303 are fixedly connected with a buffer spring 304.

[0019] The top outer side of the shaft sleeve 1 is provided with a sealing groove, the inner sealing strip 202 and the outer sealing strip 203 are fixed on the inner side and the outer side of the sealing groove respectively, the bottom end of the sealing cylinder 201 is vertically embedded in the sealing groove, and the cross-sectional area of the sealing groove is consistent with the cross-sectional area of the sealing cylinder 201;

[0020] During the rotation of the stirrer shaft 2, the sealing cylinder 201 below the stirrer shaft 2 is embedded in the sealing groove at the top of the shaft sleeve 1, so that the sealing cylinder 201 of the stirrer shaft 2 rotates in the sealing groove all the time, and the inner sealing strip 202 and the outer sealing strip 203 in the sealing groove can tightly adhere to the outer wall and the inner wall of the sealing cylinder 201 at the same time, realizing double sealing of the gap between the stirrer shaft 2 and the shaft sleeve 1, which can effectively prevent the stirring material from being stuck in the gap between the stirrer shaft 2 and the shaft sleeve 1, reduce the wear between the stirrer shaft 2 and the shaft sleeve 1, and make the rotation of the stirrer shaft 2 more stable;

[0021] The stirrer shaft 2 is vertically embedded in the middle part of the shaft sleeve 1, the spacing between the outer wall of the stirrer shaft 2 and the inner wall of the shaft sleeve 1 is 0.1-1cm, and the stirrer shaft 2 is vertically embedded in the middle part of the outer ball bearing 204;

[0022] The limiting column 205 is embedded in the through hole below the inside of the stirrer shaft 2, and the outer wall of the inner ball bearing 206 on the limiting column 205 tightly adheres to the inner wall of the through hole.

[0023] During the rotation of the stirrer shaft 2, the outer wall of the stirrer shaft 2 tightly adheres to the outer ball bearing 206, and the outer wall of the inner ball bearing 206 in the limiting column 205 tightly adheres to the inner wall of the stirrer shaft 2, realizing double limiting support of the stirrer shaft 2, avoiding the swing of the stirrer shaft 2 during rotation, and making the rotation of the stirrer shaft 2 more smooth.

[0024] The embodiment 2 is different from the embodiment 1 in that the connecting column 303 above the mounting plate 302 is embedded in the extension slot in the middle of the bottom end of the shaft sleeve 1, the buffer springs 304 at the upper and lower ends of the connecting column 303 are connected between the top and bottom of the extension slot respectively, and the shaft sleeve 1 is vertically lifted up and down outside the connecting column 303.

[0025] When the stirrer shaft 2 shakes during rotation, the stirrer shaft 2 pushes the shaft sleeve 1 to move downward, so that the shaft sleeve 1 extrudes and pulls the buffer springs 304 at the upper and lower ends of the connecting column 303 to deform, the deformation of the buffer springs 304 buffers the upward and downward shaking force of the stirrer shaft 2, and the stirrer shaft 2 is directly impacted by a large force, so that the support limiting effect of the stirrer shaft 2 is good.

[0026] The cross-sectional area of the limiting rod 301 is consistent with the cross-sectional area of the sliding groove in the support plate 3, and the support plate 3 is vertically lifted up and down outside the limiting rod 301.

[0027] When the shaft sleeve 1 shakes up and down, the support plate 3 on the outer wall of the shaft sleeve 1 is lifted up and down on the outer wall of the limiting rod 301, and the limiting rod 301 avoids the shaft sleeve 1 from being offset and tilted during the upward and downward movement by limiting and guiding the support plate 3.

[0028] The above is only the preferred embodiment of the present application, and it should be pointed out that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which should be considered as the protection range of the present application, and these will not affect the effect and practicality of the present application.

Claims

1. A stirrer shaft support structure comprising a shaft sleeve (1) and a stirrer shaft (2), the inside of the shaft sleeve (1) being vertically embedded with the stirrer shaft (2), characterized in that, The lower outer wall of the stirrer shaft (2) is fixed with a sealing cylinder (201), the inner upper part of the sealing cylinder (201) is fixed with an inner sealing strip (202) and an outer sealing strip (203), the middle part and the lower part of the shaft sleeve (1) are fixed with outer ball bearings (204), the lower part of the middle part of the shaft sleeve (1) is vertically fixed with a limiting column (205), the outer wall of the limiting column (205) is fixed with an inner ball bearing (206), the lower part of the outer wall of the shaft sleeve (1) is fixed with a supporting plate (3), the inner lower part of the supporting plate (3) is vertically embedded with a limiting rod (301), the bottom of the limiting rod (301) is fixed with a mounting plate (302), the upper surface of the middle part of the mounting plate (302) is vertically fixed with a connecting column (303), the top and bottom of the connecting column (303) are fixedly connected with buffer springs (304).

2. The beater shaft support structure according to claim 1, characterized by, The top outer side of the shaft sleeve (1) is provided with a sealing groove, the inner sealing strip (202) and the outer sealing strip (203) are fixed on the inner side and the outer side of the sealing groove respectively, the bottom end of the sealing cylinder (201) is vertically embedded in the sealing groove, and the cross-sectional area of the sealing groove is consistent with the cross-sectional area of the sealing cylinder (201).

3. The beater shaft support structure according to claim 1, characterized by, The stirrer shaft (2) is vertically embedded in the middle part of the shaft sleeve (1), the distance between the outer wall of the stirrer shaft (2) and the inner wall of the shaft sleeve (1) is 0.1-1cm, and the stirrer shaft (2) is vertically embedded in the middle part of the outer ball bearing (204).

4. The beater shaft support structure according to claim 1, characterized by, The connecting column (303) above the mounting plate (302) is embedded in the extension groove in the middle part of the bottom end of the shaft sleeve (1), the buffer springs (304) at the upper and lower ends of the connecting column (303) are connected with the top and bottom of the extension groove respectively, and the shaft sleeve (1) is vertically raised and lowered on the outer side of the connecting column (303).

5. The beater shaft support structure according to claim 1, characterized by, The limiting column (205) is embedded in the through hole below the inner part of the stirrer shaft (2), and the outer wall of the inner ball bearing (206) on the limiting column (205) is tightly attached to the inner wall of the through hole.

6. The beater shaft support structure according to claim 1, characterized by, The cross-sectional area of the limiting rod (301) is consistent with the cross-sectional area of the sliding groove in the inner part of the supporting plate (3), and the supporting plate (3) is vertically raised and lowered on the outer wall of the limiting rod (301).

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