Roller shaft protection tool

Abstract

The utility model discloses a roller shaft protection tool which comprises a sleeve used for being arranged on the outer side of a roller shaft in a sleeving mode. The cover plate is arranged at one end, far away from the roller shaft, of the sleeve; and the magnetic attraction piece is arranged on the cover plate and used for being connected with the end face of the roller shaft in a magnetic attraction mode. Compared with the prior art, according to the roller shaft protection tool, the roller shaft is protected through the sleeve, welding slag splashing in the welding process is avoided, the sleeve is fixed through the magnetic attraction piece and the cover plate, the sleeve is prevented from falling in the rotating process of the portal, and using is more convenient.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of forklift mast manufacturing, in particular to a roller shaft protection tool. BACKGROUND

[0002] The forklift mast is a main load-bearing structure of a forklift taking device, and can be made into two or more levels according to the lifting height requirement of forked goods, the two-level mast is composed of an inner mast and an outer mast, the goods fork and the fork frame suspended on the fork frame move up and down along the inner mast by means of rollers, and drive the goods to lift or descend.

[0003] At present, the mast is welded on a welding workstation, during the welding process, the workpiece and the welding material are melted to form a molten region, and the molten pool is cooled and solidified to form a connection between materials, but the welding may have the problem of welding slag splashing.

[0004] The roller of the forklift mast is a forklift accessory that plays a guiding and force transmitting role between the fork frame and the mast, the cooperation precision between the roller shaft and the roller of the forklift mast is high, the roller shaft needs to be protected to ensure that the roller shaft is free of burrs, welding slag and other impurities.

[0005] Therefore, there is an urgent need for a roller shaft protection tool that is simple in structure, easy to operate, can protect the roller shaft and meets the actual use requirements. INNOVATION CONTENT

[0006] To solve the above technical problems, the application provides a roller shaft protection tool, which protects the roller shaft through a sleeve, avoids welding slag splashing during welding, fixes the sleeve through a magnetic attraction piece and a cover plate, avoids the sleeve from falling off during rotation of the mast, and is more convenient to use.

[0007] The technical scheme provided by the application is as follows:

[0008] A roller shaft protection tool, comprising:

[0009] A sleeve for sleeving on the outer side of the roller shaft;

[0010] A cover plate arranged at one end of the sleeve away from the roller shaft;

[0011] A magnetic attraction piece arranged on the cover plate, the magnetic attraction piece being used for magnetic attraction connection with the end face of the roller shaft.

[0012] Preferably, the roller shaft comprises:

[0013] A fixing part for fixed connection with the mast;

[0014] An installation part fixedly connected with one end of the fixed part away from the portal, the inner diameter of the sleeve is larger than the outer diameter of the installation part and smaller than the size of the fixed part.

[0015] Preferably, a preset gap exists between the end surface of the sleeve away from the cover plate and the end surface of the fixed part.

[0016] Preferably, the magnetic attraction part and the cover plate are fixedly connected.

[0017] Preferably, the magnetic attraction part is a magnet block, and the magnetic attraction part and the cover plate are magnetically connected.

[0018] Preferably, the protective tool further comprises:

[0019] A limiting groove arranged on the cover plate close to one side of the cover plate, and the inner diameter of the limiting groove is matched with the outer diameter of the magnetic attraction part.

[0020] Preferably, the cover plate and the sleeve are integrally formed.

[0021] Preferably, the cover plate and the sleeve are welded.

[0022] The protective tool for the roller shaft provided by the utility model firstly has the sleeve arranged thereon, wherein the sleeve is arranged on the outer side of the roller shaft, the sleeve is used for protecting the roller shaft, and the welding slag is prevented from splashing on the roller shaft during the welding process. Secondly, the portal needs to be turned over during the welding process, in order to prevent the sleeve from falling off during the turning over of the portal, the cover plate and the magnetic attraction part are further arranged, the cover plate is arranged at one end of the sleeve away from the roller shaft, the magnetic attraction part is arranged on the cover plate and located at one end of the cover plate close to the sleeve, the magnetic attraction part is magnetically connected with the roller shaft through the magnetic attraction force, and the cover plate and the sleeve are fixed on the outer side of the roller shaft under the magnetic attraction force. Therefore, compared with the prior art, the protective tool for the roller shaft in the utility model embodiment has the advantages of simple structure, convenient operation, protection of the roller shaft and meeting the actual use requirements. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1 A structure schematic view of the protective tool for the roller shaft provided by the utility model embodiment (not installed on the portal);

[0025] Figure 2 A structure schematic view (installed on a portal) of the roller shaft protection tool provided by the embodiment of the utility model;

[0026] Figure 3 For Figure 2 A partial enlarged view at A in FIG. 1;

[0027] Figure 4 A structure schematic view of the roller shaft provided by the embodiment of the utility model.

[0028] Reference signs: 1, sleeve; 2, roller shaft; 3, cover plate; 4, magnetic attraction piece; 5, portal; 21, fixed part; 22, mounting part. DETAILED DESCRIPTION

[0029] In order for those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly disposed on the other element; when an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0032] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of", "several" is two or more, unless otherwise explicitly specified.

[0033] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0034] The embodiments of this utility model are written in a progressive manner.

[0035] like Figures 1 to 4 As shown, this utility model embodiment provides a roller shaft protective fixture, including: a sleeve 1, which is used to fit on the outside of the roller shaft 2; a cover plate 3 disposed at the end of the sleeve 1 away from the roller shaft 2; and a magnetic suction member 4 disposed on the cover plate 3, which is used to magnetically connect with the end face of the roller shaft 2.

[0036] Currently, the gantry is welded on a welding workstation. During the welding process, the workpiece and the welding material melt to form a molten area. After the molten pool cools and solidifies, a connection is formed between the materials. However, welding can cause the problem of slag spatter.

[0037] The roller shaft protective fixture provided by this utility model firstly includes a sleeve 1, which is used to fit over the outside of the roller shaft 2, protecting the roller shaft 2 and preventing weld slag from splashing onto it during welding. Secondly, since the gantry 5 needs to be rotated during welding, a cover plate 3 and a magnetic suction component 4 are also provided to prevent the sleeve 1 from falling off during this process. The cover plate 3 is located at the end of the sleeve 1 away from the roller shaft 2, and the magnetic suction component 4 is located on the cover plate 3 at the end closest to the sleeve 1. The magnetic suction component 4 is magnetically attracted to the roller shaft 2, and under this magnetic attraction, the cover plate 3 and the sleeve 1 are fixed to the outside of the roller shaft 2. Therefore, compared with the prior art, the roller shaft protective fixture in this utility model embodiment has a simple structure, is easy to operate, and can effectively protect the roller shaft, meeting the needs of practical use.

[0038] The roller shaft protective fixture in this embodiment of the utility model protects the roller shaft 2 with a sleeve 1 to prevent welding slag from splashing during the welding process and affecting the subsequent installation of the roller. The sleeve 1 is fixed with the cover plate 3 by the magnetic suction part 4 to prevent the sleeve 1 from falling off during the rotation of the gantry 5 and affecting the welding effect.

[0039] Furthermore, since the roller shaft 2 and the cover plate 3 are connected by the magnetic attraction of the magnetic attraction component 4, the structure of the roller shaft 2 will not be damaged. In addition, the disassembly process is more convenient after the welding is completed.

[0040] Further, as one of the embodiments, the roller shaft in the embodiment of the utility model includes a fixed part 21 and a mounting part 22, wherein the fixed part 21 is used for fixed connection with the portal 5, the mounting part 22 is arranged at one end of the fixed part 21 away from the portal 5, and the mounting part 22 is fixedly connected with the fixed part 21; the mounting part 22 is used for mounting the roller, the sleeve 1 is sleeved outside the mounting part 22, and the inner diameter of the sleeve 1 is greater than the outer diameter of the mounting part 22 and smaller than the size of the fixed part 21. The outer circumferential surface of the mounting part 22 is used for cooperating with the roller, and the roller is mounted; the precision requirement of the outer circumferential surface of the mounting part 22 is high; the outer circumferential surface of the mounting part 22 is protected by sleeving the sleeve 1 outside the mounting part 22, so that the welding slag is prevented from splashing on the outer circumferential surface of the mounting part 22.

[0041] More specifically, the cross-sectional shape of the sleeve 1 in the embodiment of the utility model can be circular or polygonal structure. As one of the preferred embodiments, the cross-sectional shape of the sleeve 1 in the embodiment of the utility model is circular or quadrilateral structure.

[0042] Further, the cross-sectional shape of the roller shaft 2 in the embodiment of the utility model is circular.

[0043] Further, the roller shaft 2 and the portal 5 are connected through welding, that is, the fixed part 21 and the portal 5 are connected through the welding mode; when the molten iron is too much during welding, the molten iron can flow onto the sleeve 1, connecting the sleeve 1 and the fixed part 21, and causing the condition that it is inconvenient to remove; as one of the embodiments, the end surface of the sleeve 1 away from the cover plate 3 and the end surface of the fixed part 21 have a preset gap, so that the molten iron adhesion between the sleeve 1 and the fixed part 21 during welding can be avoided, and the sleeve 1 and the cover plate 3 can be more conveniently removed after welding is completed, facilitating repeated use.

[0044] Further, the preset gap in the embodiment of the utility model is mainly used for avoiding the adhesion of the molten iron of the fixed part 21 during the welding process and the sleeve 1; the preset gap can be set according to the actual use.

[0045] In the above structure, as one of the embodiments, the magnetic attraction piece 4 in the embodiment of the utility model includes but is not limited to a magnet block or an electromagnet; the magnetic attraction piece 4 mainly provides a magnetic attraction force between the cover plate 3 and the roller shaft 2.

[0046] Further, the magnetic member 4 can be directly fixed on the cover plate 3, that is, the magnetic member 4 and the cover plate 3 are not detachably connected, but when the magnetic member 4 is demagnetized, the magnetic member 4 and the cover plate 3 need to be replaced, as a preferred embodiment, the magnetic member 4 and the cover plate 3 are preferably detachably connected, specifically, the magnetic member 4 is fixed on the cover plate 3 by magnetic attraction.

[0047] As a specific embodiment, the magnetic member 4 in the embodiment of the utility model is specifically a magnet block, and the magnet block and the cover plate 3 are specifically magnetically connected.

[0048] In the above structure, as one of the embodiments, the roller shaft protection tool in the embodiment of the utility model further comprises a limiting groove, wherein the limiting groove is arranged on the inner side of the cover plate 3, the inner diameter of the limiting groove is matched with the outer diameter of the magnetic member 4, the limiting groove is used in cooperation with the magnetic member 4, and the limiting groove is used for placing the magnetic member 4 to avoid the misalignment of the magnetic member 4.

[0049] Further, as the first embodiment, the cover plate 3 and the sleeve 1 in the embodiment of the utility model are specifically an integrally formed structure, that is, the cover plate 3 and the sleeve 1 are integrally formed and manufactured without subsequent processing, which is convenient to use, but the processing method is complex and the cost is high.

[0050] Further, as the second embodiment, the cover plate 3 and the sleeve 1 in the embodiment of the utility model are specifically welded, that is, the cover plate 3 and the sleeve 1 are a split structure, and in order to fix the cover plate 3 and the sleeve 1, the cover plate 3 and the sleeve 1 are connected by welding.

[0051] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A roller shaft protective fixture, characterized in that, include: Sleeve (1), the sleeve being fitted onto the outside of the roller shaft (2); A cover plate (3) is provided at one end of the sleeve (1) away from the roller shaft (2); The magnetic attractor (4) is provided on the cover plate (3) and is used to magnetically connect with the end face of the roller shaft (2).

2. The roller shaft protective fixture according to claim 1, characterized in that, The roller shaft (2) includes: Fixing part (21), the fixing part (21) is used to fix it to the gantry (5); The mounting part (22) is fixedly connected to the end of the fixing part (21) away from the gantry (5), and the inner diameter of the sleeve (1) is larger than the outer diameter of the mounting part (22) and smaller than the size of the fixing part (21).

3. The roller shaft protective fixture according to claim 2, characterized in that, There is a preset gap between the end face of the sleeve (1) away from the cover plate (3) and the end face of the fixing part (21).

4. The roller shaft protective fixture according to claim 3, characterized in that, The magnetic attractor (4) is a magnet or an electromagnet.

5. The roller shaft protective fixture according to any one of claims 1 to 4, characterized in that, The magnetic suction element (4) and the cover plate (3) are specifically fixedly connected.

6. The roller shaft protective fixture according to any one of claims 1 to 4, characterized in that, The magnetic component (4) is specifically a magnet block, and the magnetic component (4) and the cover plate (3) are specifically magnetically connected.

7. The roller shaft protective fixture according to claim 6, characterized in that, Also includes: A limiting groove is provided on the side of the cover plate (3) near the cover plate, and the inner diameter of the limiting groove is adapted to the outer diameter of the magnetic suction member (4).

8. The roller shaft protective fixture according to any one of claims 1 to 4 and 7, characterized in that, The cover plate (3) and the sleeve (1) are specifically integrally formed.

9. The roller shaft protective fixture according to any one of claims 1 to 4 and 7, characterized in that, The cover plate (3) and the sleeve (1) are specifically connected by welding.

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