Fixed cutter shaft roller insulating bearing

Abstract

The utility model discloses a fixed cutter shaft roller insulation bearing which comprises a joint bearing, an expansion sleeve arranged outside the joint bearing in a sleeved mode, a first outer end cover and a second outer end cover, the first outer end cover and the second outer end cover are installed at the two ends of the insulation bearing respectively, and a first insulation layer is arranged between the first outer end cover and the joint bearing. A second insulating layer is arranged between the second outer end cover and the knuckle bearing, and a third insulating layer is arranged between the knuckle bearing and the expansion sleeve. The fixed cutter shaft roller is simple in structure, low in cost and good in insulation effect, insulativity between the fixed cutter shaft roller and a machine table and between the fixed cutter shaft roller and a plurality of mechanisms is guaranteed on the premise that working performance of original machine table equipment is not changed, and working stability of the original machine table is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of insulating bearings, specifically to an insulating bearing for a fixed cutter shaft roller. Background Technology

[0002] The soft tissue paper cutter uses a spiral blade to cut tissue paper and process the cut tissue paper into interlocking folded facial tissues. During production, the paper blade may not completely cut the paper, resulting in small portions of the paper edges sticking together. To address this issue, existing technologies detect the continuity of the control circuit, requiring insulation between the fixed blade and the fixed roller to determine if the fixed and moving blades are tangent. However, this fixed blade structure makes replacement difficult and ensures the stability of insulation after replacement. Therefore, to avoid the shortcomings of existing technologies, it is necessary to improve them. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings and deficiencies in the existing technology and provide a fixed cutter shaft roller insulating bearing with stable structure and good insulation effect.

[0004] This utility model is achieved through the following technical solution: a fixed blade roller insulating bearing, including a spherical bearing, an expansion sleeve sleeved on the spherical bearing, a first outer end cover and a second outer end cover respectively installed at both ends of the insulating bearing, a first insulating layer between the first outer end cover and the spherical bearing, a second insulating layer between the second outer end cover and the spherical bearing, and a third insulating layer between the spherical bearing and the expansion sleeve.

[0005] Furthermore, the first insulating layer, the second insulating layer, and the third insulating layer are flexible insulating layers.

[0006] Furthermore, the first insulating layer, the second insulating layer, and the third insulating layer are insulating paper.

[0007] Furthermore, the thickness of the insulating paper is 0.15mm to 0.25mm.

[0008] Furthermore, the first outer end cover is provided with a first mounting platform, the second outer end cover is provided with a second mounting platform, and the third insulating layer extends outward to the first mounting platform and the second mounting platform.

[0009] Furthermore, the spherical bearing includes an outer ring and an inner ring.

[0010] Furthermore, the first insulating layer is disposed between the inner wall of the first mounting platform and the outer wall of the outer ring, and the second insulating layer is disposed between the inner wall of the second mounting platform and the outer wall of the outer ring.

[0011] Furthermore, the first insulating layer is disposed on the first mounting platform and extends inward to the space between the inner wall of the first mounting platform and the outer wall of the outer ring, and the second insulating layer is disposed on the second mounting platform and extends inward to the space between the inner wall of the second mounting platform and the outer wall of the outer ring.

[0012] Compared with the prior art, this utility model provides an insulating layer between the expansion sleeve and the spherical bearing, and an insulating layer between the spherical bearing and the two outer end caps, thus insulating the spherical bearing from other components. Since the two ends of the fixed blade roller are installed in the spherical bearing, the fixed blade roller is insulated from the frame, which facilitates the subsequent inspection of facial tissues. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a perspective view of the fixed-blade roller insulating bearing of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the fixed cutter shaft roller insulating bearing of this utility model.

[0016] Figure 3 for Figure 2 A sectional view along line AA.

[0017] Figure 4 This is an exploded view of the fixed cutter shaft roller insulated bearing of this utility model.

[0018] In the figure: 1-spherical bearing; 2-shrinking sleeve; 3-first outer end cap; 4-second outer end cap; 5-first insulating layer; 6-second insulating layer; 7-third insulating layer; 8-first mounting platform; 9-second mounting platform; 10-outer ring; 11-inner ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1 to 4The present invention discloses an insulated bearing for a fixed cutter shaft roller, comprising a spherical bearing 1, a shrink sleeve 2 sleeved outside the spherical bearing 1, and a first outer end cover 3 and a second outer end cover 4 respectively installed at both ends of the insulated bearing. A first insulating layer 5 is provided between the first outer end cover 3 and the spherical bearing 1, a second insulating layer 6 is provided between the second outer end cover 4 and the spherical bearing 1, and a third insulating layer 7 is provided between the spherical bearing 1 and the shrink sleeve 2. The fixed cutter shaft roller is mounted on the frame via the insulated bearing and is divided into an operating side and a transmission side. The swing arm on the transmission side is connected to several components of the frame to fix the fixed cutter shaft roller. The first outer end cover 3 and the second outer end cover 4 are used to position the spherical bearing 1. The first insulating layer 5, the second insulating layer 6, and the third insulating layer 7 insulate and separate the components connected to the spherical bearing 1. The two ends of the fixed cutter shaft roller are installed inside the spherical bearing 1, thereby achieving insulation between the fixed cutter shaft roller and other components. The two ends of the fixed cutter shaft roller are respectively installed inside the swing arm. A fourth insulating layer can be installed between the outer wall of the fixed cutter shaft roller and the inner wall of the swing arm to insulate the swing arm from the fixed cutter shaft roller. The insulation between the fixed cutter shaft roller and the frame facilitates the normal operation of subsequent testing processes.

[0021] The first insulating layer 5, the second insulating layer 6, and the third insulating layer 7 are flexible insulating layers, making installation easier.

[0022] The first insulating layer 5, the second insulating layer 6, and the third insulating layer 7 are insulating paper. The thickness of the insulating paper is 0.15mm to 0.25mm. The insulating paper is relatively thin, resulting in good installation effect and low production cost.

[0023] The first outer end cover 3 is provided with a first mounting platform 8, and the second outer end cover 4 is provided with a second mounting platform 9. The third insulating layer 7 extends outward to the first mounting platform 8 and the second mounting platform 9. To prevent the spherical bearing 1 from directly contacting the expansion sleeve 2 when the third insulating layer 7 shifts, the insulation between the spherical bearing 1 and the expansion sleeve 2 is ensured.

[0024] The spherical plain bearing 1 includes an outer ring 10 and an inner ring 11. A first insulating layer 5 is disposed between the inner wall of the first mounting platform 8 and the outer wall of the outer ring 11, and a second insulating layer 6 is disposed between the inner wall of the second mounting platform 9 and the outer wall of the outer ring 11, thereby achieving insulation between the spherical plain bearing 1 and the first outer end cover 3 and the second outer end cover 4.

[0025] The first insulating layer 5 is disposed on the first mounting platform 8 and extends inward to the space between the inner wall of the first mounting platform 8 and the outer wall of the outer ring 11. The second insulating layer 6 is disposed on the second mounting platform 9 and extends inward to the space between the inner wall of the second mounting platform 9 and the outer wall of the outer ring 11. This prevents the spherical bearing 1 from directly contacting the first outer end cap 3 or the second outer end cap 4 when either the first insulating layer 5 or the second insulating layer 6 shifts, ensuring insulation between the spherical bearing 1 and the first outer end cap 3 and the second outer end cap 4.

[0026] Of course, other insulation treatments can be applied to the spherical bearing 1, such as sandblasting the outer surface of the spherical bearing 1, i.e. the surface of the outer ring 11 and the side end face, with insulating material. However, this method is unstable and the insulating material is easily scraped off during installation, or even easily broken down by current. Alternatively, the insulated bearing can be directly replaced, but this can easily affect the working performance of the original machine.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixed knife shaft roller insulating bearing characterized by: The joint bearing, the expansion sleeve, the first outer end cover and the second outer end cover, a first insulation layer between the first outer end cover and the joint bearing, a second insulation layer between the second outer end cover and the joint bearing, and a third insulation layer between the joint bearing and the expansion sleeve.

2. The fixed knife shaft roller insulating bearing of claim 1, wherein: The first insulation layer, the second insulation layer and the third insulation layer are flexible insulation layers.

3. The fixed knife shaft roller insulating bearing of claim 1, wherein: The first insulation layer, the second insulation layer and the third insulation layer are insulation paper.

4. The fixed knife shaft roller insulating bearing of claim 3, wherein: The thickness of the insulation paper is 0.15mm-0.25mm.

5. The fixed knife shaft roller insulating bearing of claim 1, wherein: The first outer end cover is provided with a first mounting platform, and the second outer end cover is provided with a second mounting platform, and the third insulation layer extends to the first mounting platform and the second mounting platform.

6. The fixed knife shaft roller insulating bearing of claim 5, wherein: The joint bearing comprises an outer ring and an inner ring.

7. The fixed knife shaft roller insulating bearing of claim 6, wherein: The first insulation layer is arranged between the inner side wall of the first mounting platform and the outer side wall of the outer ring, and the second insulation layer is arranged between the inner side wall of the second mounting platform and the outer side wall of the outer ring.

8. The fixed knife shaft roller insulating bearing of claim 6, wherein: The first insulation layer cover is arranged on the first mounting platform and extends to the inner side wall of the first mounting platform and the outer side wall of the outer ring, and the second insulation layer cover is arranged on the second mounting platform and extends to the inner side wall of the second mounting platform and the outer side wall of the outer ring.

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