Easily-disassembled low-friction wire guide device

Abstract

The utility model discloses an easily detachable low-friction wire guiding device which comprises a support and a wire guiding wheel assembly, the wire guiding wheel assembly is installed on the support, the wire guiding wheel assembly comprises a wire guiding wheel, an installation shaft and a bearing, the wire guiding wheel is installed on the installation shaft through the bearing, the installation shaft is fixed on the support, the support is provided with an installation notch, and the installation notch is arranged on the support. The mounting shaft is arranged in the mounting notch, the mounting shaft is fixed in the mounting notch through a set screw, and a plurality of arc-shaped bulges are uniformly distributed on the wire guide wheel. The mounting shaft is a stepped shaft with a large middle and two small ends, a shaft shoulder is arranged in the middle, one side of the bearing is close to the shaft shoulder, and a retainer ring is arranged on the other side of the bearing. A right dustproof cover is arranged on the right side of the wire guide wheel, and one end of the right dustproof cover abuts against the bearing. A left dustproof cover is arranged on the left side of the guide wheel. The problems that an existing wire guiding device is inconvenient to use and disassemble, and wires are prone to being abraded are solved.

Description

Technical Field

[0001] The utility model belongs to the field of wire devices, and in particular relates to an easily detachable low-friction wire device. Background Art

[0002] Usually, a wire guide device has a wire pulley, and a bearing is provided between the wire pulley and the shaft. The outer ring of the bearing and the wire pulley, as well as the inner ring of the bearing and the shaft, are transitionally fitted. The shaft is firmly fixed to the bracket, and the entire device is then fixed to the ground or equipment through the bracket. When replacing or cleaning the wire pulley, the entire device needs to be disassembled. This integral structure is quite troublesome and laborious to disassemble and assemble. Among them, the wire surface of the wire pulley adopts a full circumferential surface structure. The contact area between the wire and the wire pulley is large, the friction is large, and the wear on the wire increases accordingly. Especially for some brittle material yarns, the wire is prone to getting lint and affecting the yarn quality. For wet-wound dipped yarn, the full circumferential surface structure makes it easy for the wire to stick to the wire pulley. Utility Model Content

[0003] The purpose of the utility model is to provide an easily detachable low-friction conductor device to solve the problems of the existing conductor devices being inconvenient to use and disassemble and prone to wear on the wires.

[0004] In order to solve the above problems, the utility model discloses an easily detachable low-friction wire device, including a bracket and a wire wheel assembly, the wire wheel assembly is installed on the bracket, the wire wheel assembly includes a wire wheel, a mounting shaft and a bearing, the wire wheel is installed on the mounting shaft through the bearing, the mounting shaft is fixed to the bracket, the bracket is provided with a mounting notch, the mounting shaft is arranged in the mounting notch, and the mounting shaft is fixed in the mounting notch by a set screw, and a number of arc-shaped protrusions are evenly distributed on the wire wheel.

[0005] As a further improvement of the above technical solution:

[0006] The installation shaft is a stepped shaft with a larger middle portion and smaller ends. A shaft shoulder is provided in the middle portion. One side of the bearing is close to the shaft shoulder, and a retaining ring is provided on the other side.

[0007] A mounting groove is provided in the guide wheel, the upper portion of the bearing is installed in the mounting groove, a right dust cover is provided on the right side of the guide wheel, and one end of the right dust cover is in contact with the bearing.

[0008] A left dust cover is provided on the left side of the guide wheel.

[0009] A felt ring is provided between the left dust cover, the right dust cover and the mounting shaft.

[0010] The bracket is provided with connecting bolts.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model is an easily detachable low-friction wire guide device, which adopts a separate design of the wire wheel assembly and the bracket. When replacing or repairing the wire wheel, there is no need to disassemble the entire device, and it can be removed by simply loosening the set screws. The easily detachable structural design makes assembly and disassembly convenient and quick, saves time and effort, and can greatly reduce the labor intensity of workers and improve work efficiency; the wire wheel has an arc gear-shaped appearance structure with a novel design. When passing the wire, the wire only contacts the top arc surface. Compared with the full cylindrical surface structure, it can greatly reduce the contact area between the wire and the wire wheel, reduce the wear of the wire due to friction, and greatly improve the winding quality of the product. The two vertical plates on the same side of the bracket cleverly adopt an upward slanting notch design, so that the installation shaft is always in a sliding and falling trend in the inclined groove under the action of the combined force, which greatly improves the safety of use. The axial concave arc section design of the wire wheel restricts the movement of the wire and is not easy to run out from the bottom of the concave arc. It solves the problems of the existing wire guide device being inconvenient to use, inconvenient to disassemble, and easy to cause wear to the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view of the easily detachable low-friction wire device of the utility model;

[0014] Figure 2 For this utility model Figure 1 Schematic diagram of the cross-section structure at CC in the middle;

[0015] Figure 3 This is a schematic diagram of the structure of the wire pulley of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the right dust cover of the utility model;

[0017] Figure 5 This is a schematic diagram of the installation shaft structure of the utility model.

[0018] Figure numerals: 1, bracket; 10, felt ring; 11, mounting notch; 12, connecting bolt; 2, guide wheel; 21, arc-shaped protrusion; 4, left dust cover; 5, right dust cover; 6, mounting shaft; 7, set screw; 8, bearing; 9, retaining ring. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figures 1 to 5As shown, the easily removable low-friction wire guide device of this embodiment includes a bracket 1 and a wire guide pulley assembly. The wire guide pulley assembly is mounted on the bracket 1 and includes a wire guide pulley 2, a mounting shaft 6, and a bearing 8. The wire guide pulley 2 is mounted on the mounting shaft 6 via the bearing 8, and the mounting shaft 6 is fixed to the bracket 1. The bracket 1 is an arched component with a convex edge around its upper mounting surface. The upper mounting surface is made of steel plate, and the convex edge is symmetrically distributed around four bolt mounting holes. Connecting bolts 12 are provided in the bolt mounting holes. The two vertical plates are rectangular, and each plate has an upward-facing inclined slot on the same side. The bottom of the inclined slot has a small horizontal straight section above and below the shaft mounting area, and the closed side is a semicircular arc tangent to the straight section, which defines the mounting notch 11. When the mounting shaft 6 is installed, it contacts the slot on three sides. The bottom of the inclined slot has a threaded hole perpendicular to the straight section, which is used to install a set screw 7. The axis of the screw hole is collinear with the diameter of the semicircular arc, ensuring a more secure shaft fastening. Mounting shaft 6 is a stepped shaft. The shoulder at the largest diameter acts as a stop for the installation of bearing 8. The larger section immediately to the right of the shoulder is where bearing 8 is mounted. This outer edge requires high dimensional accuracy and surface finish. A recessed groove on mounting shaft 6 serves as the mounting point for retaining ring 9. Immediately adjacent to the larger section on either side are the mounting points for the left and right dust covers. The smaller section at the end is where bracket 1 is mounted and where set screw 7 is secured.

[0024] The guide pulley 2 is evenly distributed with several arc-shaped protrusions 21, which can be considered a gear-like structure. This reduces the contact area between the wire and the guide pulley 2, minimizing wear on the wire by the guide pulley 2, and improving the winding quality and product quality rate. For wet-winding of dipped yarn, the top of the arc-shaped protrusions can also act as a glue scraper. The axial cross-section of the guide pulley 2 is a concave arc, preventing the wire from escaping from the bottom of the concave arc. A mounting slot is provided within the guide pulley 2, into which the upper portion of the bearing 8 is mounted. A right dust cover 5 is provided on the right side of the guide pulley 2, with one end of the right dust cover 5 abutting against the bearing 8. A left dust cover 4 is provided on the left side of the guide pulley 2. A felt ring 10 is provided between the left and right dust covers 4 and 5 and the mounting shaft 6. Connecting bolts 12 are provided on the bracket 1, securing the entire assembly in place. Three threaded holes are evenly spaced on both end surfaces of the guide pulley 2 for mounting the left and right dust covers. The inner hole is a stepped hole, and the bearing 8 is installed from the right end of the larger inner hole, with the left end face of the outer ring close to the stepped surface of the inner hole and positioned.

[0025] The mounting shaft 6 is a stepped shaft with a larger center and smaller ends. It features a shoulder in the middle. Bearing 8 is positioned adjacent to the shoulder on one side and a retaining ring 9 on the other. During assembly, bearing 8 is inserted from right to left, fitting tightly against the middle section of the mounting shaft 6. The left end of the inner ring of bearing 8 abuts the shoulder, while the right end of the inner ring is secured by retaining ring 9 to prevent axial movement. Guide pulley 2 is inserted from left to right until the stepped end of the inner bore abuts the left end of the outer ring of bearing 8, securing it tightly against the outer ring. The right end of the outer ring of bearing 8 is also supported by the annular shaft end of right dust cover 5. The left and right dust covers are then secured to the ends of guide pulley 2 with three connecting screws 3. Two flexible felt rings 10 are inserted into the trapezoidal grooves of left and right dust covers 4 and 5, respectively, enveloping the outer edge of mounting shaft 6 and effectively preventing dust, liquids, and other particles from entering the bearing. The assembled and debugged wire wheel assembly is installed into the inverted U-shaped arch groove between the two vertical plates of the bracket 1. At the same time, the small shafts at both ends of the mounting shaft 6 are installed into the inclined grooves of the vertical plates and slide into the bottom. Then, the mounting shaft 6 is tightened with two set screws 7 to fix the mounting shaft 6 and the bracket 1 as one.

[0026] The left dust cover 4 is a stepped, circular cap-shaped component. Three countersunk screw holes are evenly spaced on the circular end face of the cap-shaped shaft, through which screws 3 pass to secure it to the guide pulley 2. The outer edge of the circular shaft is chamfered to facilitate insertion into the guide pulley hole, and the outer edge of the circular shaft cooperates with the inner hole of the guide pulley 2 to provide a guide. The diameter of the circular shaft of the right dust cover 5 is slightly larger than that of the left dust cover 4. The end face of the small circular shaft presses against the outer ring of the right end of the bearing 8 for positioning. The center has a large circular hole and a trapezoidal slot for a felt ring 10. The felt ring 10 prevents dust and liquid from entering the bearing.

[0027] This embodiment also discloses a method for using an easily detachable low-friction wire device, comprising the following steps:

[0028] S1. Assemble the wire pulley assembly: insert the bearing 8 from the right end of the mounting shaft 6 until the left end of the inner ring of the bearing 8 is close to the shoulder of the mounting shaft 6 and tightly fitted on the middle section of the mounting shaft 6. The right end of the inner ring of the bearing 8 is blocked by a retaining ring 9 to prevent axial movement. The wire pulley 2 is inserted from the left end of the bearing 8 until the end face of the inner hole of the step is close to the center of the left end of the outer ring of the bearing 8 and tightly fitted on the bearing 8. The right end of the outer ring of the bearing 8 is tightened with the right dust cover 5; install the felt ring 10 in the trapezoidal groove of the left dust cover 4 and the right dust cover 5, so that the left dust cover 4 and the right dust cover 5 are sealed and connected to the mounting shaft 6, effectively preventing dust, liquid, etc. from entering the bearing 8; put the left dust cover 4 and the right dust cover 5 on the symmetrical ends of the mounting shaft 6, adjust the installation position, and fix them on the wire pulley 2 with connecting screws 3; in the assembled wire pulley assembly, the inner ring of the bearing 8 has no relative movement with the mounting shaft 6, and the outer ring of the bearing 8 is connected to the wire pulley 2 and the dust cover as a whole. Gently move the outer edge of the wire wheel, and the wire wheel will rotate freely around the installation axis 6.

[0029] S2. Insert the installed wire pulley assembly into the installation notches 11 of the two vertical plates of the bracket 1, and fine-tune its position in the inverted U-shaped arch groove of the bracket 1 left and right to make the gaps between the left and right dust covers and the vertical plates uniform, then tighten the left and right set screws 7 to tighten the installation shaft 6 into the installation notch 11.

[0030] S3. When threading the wire, insert the wire into one side of the bracket 1 and pull it out from the other side. Under the action of the wire tension T, the wire pulley 2 rotates counterclockwise. It is always subjected to downward and tangential forces, so that the mounting shaft 6 always tends to fall and slide into the mounting notch 11 and will not leave the mounting notch 11 due to loosening of the set screw 7.

[0031] S4. When the guide wheel assembly needs to be replaced or repaired, it can be easily removed by loosening the set screw 7. There is no need to loosen the connecting bolt 12 to remove the entire device.

[0032] The above is only an embodiment of the present invention, and common knowledge such as the specific structure and characteristics of the scheme are not described in detail here. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claim involved.

Claims

1. An easily detachable low-friction wire device, characterized in that: The invention comprises a bracket (1) and a wire wheel assembly, wherein the wire wheel assembly is mounted on the bracket (1), the wire wheel assembly comprises a wire wheel (2), a mounting shaft (6) and a bearing (8), the wire wheel (2) is mounted on the mounting shaft (6) via the bearing (8), the mounting shaft (6) is fixed to the bracket (1), a mounting notch (11) is provided on the bracket (1), the mounting shaft (6) is arranged in the mounting notch (11), and the mounting shaft (6) is fixed in the mounting notch (11) by a set screw (7), and a plurality of arc-shaped protrusions (21) are evenly distributed on the wire wheel (2).

2. The easily detachable low-friction wire device according to claim 1, characterized in that: The installation shaft (6) is a stepped shaft with a larger middle portion and smaller ends, and a shaft shoulder is provided in the middle portion. One side of the bearing (8) is close to the shaft shoulder, and a retaining ring (9) is provided on the other side.

3. The easily detachable low-friction wire device according to claim 2, characterized in that: The guide wheel (2) is provided with a mounting groove, the upper portion of the bearing (8) is mounted in the mounting groove, and a right dust cover (5) is provided on the right side of the guide wheel (2), one end of the right dust cover (5) is in contact with the bearing (8).

4. The easily detachable low-friction wire device according to claim 3, characterized in that: A left dust cover (4) is provided on the left side of the guide wheel (2).

5. The easily detachable low-friction wire device according to claim 4, characterized in that: A felt ring (10) is provided between the left dust cover (4), the right dust cover (5) and the mounting shaft (6).

6. The easily detachable low-friction wire device according to claim 5, characterized in that: The bracket (1) is provided with a connecting bolt (12).

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