Light high-speed low-noise roller

Abstract

The utility model relates to the technical field of rollers, in particular to a light high-speed low-noise roller which comprises a roller body and a core shaft penetrating through the roller body, a bearing seat, a bearing and an end cover are sequentially distributed between the roller body and the end portion of the core shaft, an outer ring of the bearing is connected with the bearing seat, an inner ring of the bearing is connected with the end cover, and the end cover is connected with the end portion of the core shaft. The end cover is provided with an inner hole for the mandrel to pass through, and splines in interference fit with the mandrel are distributed on the inner wall of the inner hole in an array, the splines are arranged in the inner hole, so that the splines are in interference fit with the mandrel, the splines can ensure interference connection with the mandrel during interference fit, convenient operation during roller assembly can be taken into account, and the roller assembly efficiency is improved. The internal threads are arranged at the two ends of the mandrel and used for fixedly installing a roller finished product on an equipment rack, and the effect that the roller is free of gaps and abnormal sound is further guaranteed through installation of the internal threads.

Description

Technical Field

[0001] The utility model relates to the technical field of rollers, in particular to a light, high-speed and low-noise roller. Background Art

[0002] Rollers are widely used. They not only transport goods but also carry goods. During long-term use, many problems will be exposed. In particular, various large physical systems will have the problem of high noise.

[0003] Existing rollers, such as the silent roller disclosed in patent number CN112228448A, include a silent roller mechanism, the silent roller mechanism includes a cylinder shell, a roller frame and a silencer body, the cylinder shell is fixedly installed with the roller frame, the silencer body is clamped and installed at the inner end of the cylinder shell, the silencer body is in sliding contact with the roller frame, the cylinder shell includes a first shell, the roller frame includes a bearing outer ring, a bearing inner ring and a fixed shaft, the bearing outer ring is rotatably installed on the outer end of the bearing inner ring, the bearing inner ring is fixedly connected to the fixed shaft, the silencer body includes a clamping rod, a restraining shell and a sponge tube, the clamping rod is provided in pair, the clamping rod is fixedly connected with the restraining shell, the sponge tube is clamped and installed on the inner wall of the restraining shell, the restraining shell includes a second shell, and the second shell is in active contact with the clamping rod. The present invention relates to the field of roller equipment technology, which can reduce noise during use and better meet the needs of use.

[0004] In order to facilitate assembly, general conveyor rollers have radial gaps. When the linear speed exceeds a certain speed, the gap will cause collisions and abnormal noises as the roller rotates at high speed, which cannot meet actual needs. Summary of the Invention

[0005] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to propose a light, high-speed and low-noise roller.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A lightweight, high-speed, low-noise roller is designed, comprising a cylinder and a core shaft passing through the cylinder, wherein a bearing seat, a bearing and an end cover are sequentially distributed between the ends of the cylinder and the core shaft, the outer ring of the bearing is connected to the bearing seat, and the inner ring of the bearing is connected to the end cover, the end cover is provided with an inner hole for the core shaft to pass through, and an array of splines are distributed on the inner wall of the inner hole, which are interference fit with the core shaft.

[0008] Furthermore, the bearing seat and the cylinder are interference fit.

[0009] Furthermore, both ends of the core shaft are provided with internal threads.

[0010] Furthermore, an electrostatic ball is provided between the inner wall of the cylinder and the core shaft.

[0011] Furthermore, the electrostatic ball is made of brass.

[0012] The utility model proposes a lightweight, high-speed, low-noise roller, which has the following beneficial effects:

[0013] The utility model provides a spline in the inner hole so that the spline and the core shaft have an interference fit. When the spline has an interference fit, it can ensure an interference connection with the core shaft and also take into account the convenient operation when assembling the roller.

[0014] After the bearing seat is interference-pressed into the cylinder, the two parts are riveted and sealed to fix them axially, so that the bearing seat can be quickly installed on the end of the cylinder;

[0015] By setting internal threads on both ends of the core shaft, the finished roller is fixed to the equipment frame. The installation of the internal threads also further ensures that there is no gap between the rollers and no abnormal noise.

[0016] An electrostatic ball is set between the cylinder and the core shaft to conduct the cylinder and the core shaft, ensuring that the static charge generated on the surface of the roller steel pipe due to the conveyed items can be transferred to the core shaft through the electrostatic ball, and then transferred to the equipment frame through the core shaft until it is grounded, avoiding accidental electrical breakdown damage to the conveyed items after charge accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a cross-sectional view of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of the utility model; DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Example, see Figure 1-2 A lightweight, high-speed, low-noise roller comprises a cylinder 1 and a core shaft 2 passing through the cylinder 1. A bearing seat 3, a bearing 4, and an end cover 5 are sequentially distributed between the ends of the cylinder 1 and the core shaft 2. The bearing seat 3 and the end cover 5 in this embodiment are made of plastic material. The outer ring of the bearing 4 is connected to the bearing seat 3, and the inner ring of the bearing 4 is connected to the end cover 5. The end cover 5 is provided with an inner hole 501 for the core shaft 2 to pass through. The inner wall of the inner hole 501 is arrayed with splines 6 that are interference fit with the core shaft 2.

[0021] By arranging the spline 6 in the inner hole 501, the spline 6 and the core shaft 2 are interference fit. When the spline 6 is interference fit, it can ensure the interference connection with the core shaft 2 and also take into account the convenient operation during the assembly of the roller.

[0022] In an optional embodiment of the present invention, the bearing seat 3 and the cylinder 1 are interference fit. The present invention presses the bearing seat 3 into the cylinder 1 through interference fit, and then rivets and seals the two components to fix them axially, thereby quickly installing the bearing seat 3 to the end of the cylinder 1.

[0023] In an optional embodiment of the present invention, internal threads 201 are provided at both ends of the core shaft 2. By providing the internal threads 201 at both ends of the core shaft 2, the finished roller is fixedly installed on the equipment frame. The installation of the internal threads 201 also further ensures that the roller has no gaps and no abnormal noises.

[0024] In an optional embodiment of the present invention, an electrostatic ball 7 is provided between the inner wall of the cylinder 1 and the core shaft 2. By providing the electrostatic ball 7 between the cylinder 1 and the core shaft 2, the cylinder 1 and the core shaft 2 are connected to ensure that the static charge generated on the surface of the roller steel pipe due to the conveyed items can be transferred to the core shaft 2 through the electrostatic ball, and then transferred to the equipment frame through the core shaft 2 until it is grounded, thereby avoiding accidental electrical breakdown damage to the conveyed items after the charge accumulates.

[0025] In an optional embodiment of the present invention, the electrostatic ball 7 is made of brass. Specifically, the electrostatic ball 7 is a sphere formed by winding brass wire.

[0026] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

[0027] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solutions of this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent application.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this patent application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0029] In this specification, unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this specification based on specific circumstances.

[0030] In this specification, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0032] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A lightweight, high-speed, low-noise roller, comprising a roller body (1) and a core shaft (2) passing through the roller body (1), characterized in that: A bearing seat (3), a bearing (4) and an end cover (5) are sequentially distributed between the ends of the cylinder (1) and the core shaft (2); the outer ring of the bearing (4) is connected to the bearing seat (3); the inner ring of the bearing (4) is connected to the end cover (5); the end cover (5) is provided with an inner hole (501) for the core shaft (2) to pass through; and an array of splines (6) are distributed on the inner wall of the inner hole (501) to be interference fit with the core shaft (2).

2. The lightweight, high-speed, low-noise roller according to claim 1, characterized in that: The bearing seat (3) and the cylinder (1) are interference fit.

3. The lightweight, high-speed, low-noise roller according to claim 1, characterized in that: Internal threads (201) are provided at both ends of the core shaft (2).

4. The lightweight, high-speed, low-noise roller according to claim 1, characterized in that: An electrostatic ball (7) is provided between the inner wall of the cylinder (1) and the core shaft (2).

5. The light-duty, high-speed, low-noise roller according to claim 4, characterized in that: The electrostatic ball (7) is made of brass.

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