Forced deviation rectifying device of belt conveyor

Abstract

The utility model provides a forced deviation rectifying device of a belt conveyor, which relates to the technical field of conveying mechanical equipment and comprises a forced deviation rectifying carrier roller assembly and an adjustable support. The forced deviation rectifying carrier roller assembly comprises a lower carrier roller, the two ends of the lower carrier roller are connected with a carrier roller support through bearing seats, and the lower carrier roller can rotate in the axial direction. The adjustable support is composed of a fixed sliding way, an adjusting lead screw and an adjusting nut. Wherein the surface of the fixed slide way is galvanized, the screw pitch of the adjusting lead screw is 5 mm, and the precision of the adjusting lead screw is + / -0.1 mm. Two sets of assemblies are symmetrically arranged on the return stroke section every 8-10 m of the 40m belt conveyor, and a sectional type deviation rectifying unit is formed. According to the utility model, the belt tension is balanced through modularized symmetrical arrangement, and a pure mechanical structure is adopted, so that the device adapts to a high-dust and humid environment, the deviation rectifying efficiency is improved, the adjusting stroke is increased, and the maintenance period is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of conveying machinery and equipment technology, and more specifically, to a forced correction device for a belt conveyor. Background Technology

[0002] In industrial production, belt conveyors are widely used due to their efficient and continuous conveying characteristics. However, belts often run off-track during actual operation due to installation errors, uneven material distribution, or environmental factors. This misalignment not only accelerates belt wear but can also lead to material spillage, equipment downtime, and even safety accidents. To address this issue, existing technologies generally employ automatic belt alignment devices, such as electric roller or sensor feedback systems. These devices rely on electronic components or hydraulic systems, using sensors to detect misalignment signals and drive mechanisms to adjust the idler roller angle. However, existing devices are weak in harsh environments; under dusty, humid, or temperature-fluctuating conditions, electronic components are prone to signal distortion, corrosion, or power failure, leading to the failure of the alignment function. Furthermore, the adjustment range is limited; the maximum angle adjustment capability of traditional devices is typically ≤10°, which cannot adapt to severe misalignment scenarios, especially for long-distance belts, resulting in low alignment efficiency. Maintenance costs are also relatively high; frequent electronic component failures require frequent maintenance, averaging 1-2 times per month, leading to significant downtime losses and increased operating costs.

[0003] Therefore, there is an urgent need to develop a purely mechanical correction device that can overcome the limitations of angle adjustment, enhance environmental adaptability, and reduce maintenance requirements in order to solve the above-mentioned technical problems. Utility Model Content

[0004] To address the aforementioned technical issues, a forced alignment device for a belt conveyor is provided. This device adjusts the angle of the lower idler roller by driving the lead screw with an adjusting nut. It is modularly and symmetrically arranged in the return section of a long-distance belt conveyor to achieve forced alignment without electrical control.

[0005] To achieve the above objectives, this utility model provides a forced correction device for a belt conveyor, comprising: a forced correction roller assembly and an adjustable bracket;

[0006] The forced alignment roller assembly includes a lower roller, both ends of which are connected to the roller bracket via bearing seats, and the lower roller is rotatable about the axial direction.

[0007] The adjustable bracket consists of a fixed slide, an adjusting screw, and an adjusting nut; wherein the fixed slide is galvanized, and the adjusting screw has a pitch of 5mm.

[0008] The two ends of the idler roller bracket are fixed to the belt conveyor frame by bolts and are hinged to the fixed slide rail to form a fulcrum.

[0009] The adjusting nut is threadedly connected to the adjusting screw, and rotating the adjusting nut drives the adjusting screw to move axially.

[0010] Furthermore, when the adjusting nut rotates, it drives the adjusting screw to move axially, causing the idler roller bracket to deflect around the fulcrum of the fixed slide, so that the angle α between the lower idler roller and the belt running direction can be steplessly adjusted within the range of 0° to 20°.

[0011] Furthermore, for belt conveyors with a length exceeding 40m, the device symmetrically arranges two sets of correction components every 20-30m on the return section to form a segmented forced correction unit.

[0012] Furthermore, the maximum adjustment range of the correction component on one side is 150mm, and bidirectional correction is achieved by coordinating the adjustment nut on the opposite side.

[0013] Furthermore, each rotation of the adjusting nut (one full turn) corresponds to a 5mm axial movement of the adjusting screw.

[0014] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0015] 1. The present invention provides a forced correction device for a belt conveyor, which achieves stepless adjustment of ±20° through an angle adjustment mechanism, significantly increasing the range of action of the belt's lateral friction force, making the correction response faster and the reset more accurate.

[0016] 2. The belt conveyor forced correction device provided by this utility model, through the coordinated action of the adjusting screw and the idler roller deflection mechanism, has a maximum single-sided adjustment range of 150mm, covering a wider deviation range and meeting the needs of severe deviation conditions.

[0017] 3. The belt conveyor forced correction device provided by this utility model adopts a purely mechanical structure and a galvanized fixed slide rail design, which completely avoids the risks of electronic signal distortion and hydraulic oil freezing / evaporation, and ensures long-term reliability in high dust and humid environments. Attached Figure Description

[0018] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a left-side view of a forced correction device for a belt conveyor according to the present invention;

[0020] Figure 2This is a right-side view of a forced correction device for a belt conveyor according to the present invention;

[0021] Figure 3 This is a top view schematic diagram of a forced correction device for a belt conveyor according to the present invention;

[0022] Figure 4 This is a schematic diagram illustrating the application of a forced correction device for a belt conveyor as described in this utility model.

[0023] In the diagram: 1. Lower idler roller; 2. Bearing housing; 3. Idler roller bracket; 4. Fixed slide rail; 5. Adjusting screw; 6. Adjusting nut; 7. Bolt. Detailed Implementation

[0024] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0028] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0029] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0030] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0031] like Figures 1 to 4 As shown, this utility model provides a forced correction device for a belt conveyor, including: a forced correction roller assembly and an adjustable bracket;

[0032] The forced alignment roller assembly includes a lower roller with a rod length of 300mm. Both ends of the lower roller are connected to the roller bracket via bearing seats, and the lower roller can rotate around the axial direction.

[0033] The adjustable bracket consists of a fixed slide, an adjusting screw, and an adjusting nut; wherein the fixed slide is galvanized, the adjusting screw has a pitch of 5mm and an accuracy of ±0.1mm, and is threadedly connected to the adjusting nut.

[0034] The two ends of the idler roller bracket are fixed to the belt conveyor frame by bolts and are hinged to the fixed slide rail to form a fulcrum.

[0035] The adjusting nut is threadedly connected to the adjusting screw, and rotating the adjusting nut drives the adjusting screw to move axially.

[0036] Furthermore, when the adjusting nut rotates, it drives the adjusting screw to move axially, causing the idler roller bracket to deflect around the fulcrum of the fixed slide, so that the angle α between the lower idler roller and the belt running direction can be steplessly adjusted within the range of 0° to 20°.

[0037] Furthermore, when the belt misalignment exceeds 50mm, rotate the adjusting nut:

[0038] If the belt deviates to the right: rotate the right adjusting nut clockwise to drive the adjusting screw to move axially, the idler bracket deflects around the fixed slide fulcrum, increasing the included angle α, generating a lateral friction force to the left, forcing the belt to return to the center;

[0039] If the belt is biased to the left: rotate the left adjusting nut counterclockwise to reduce the included angle α;

[0040] A single rotation of the adjusting nut should be ≤1 turn, corresponding to a 5mm axial movement of the lead screw, to avoid over-adjustment.

[0041] Furthermore, for belt conveyors with a length exceeding 40m, the device symmetrically arranges two sets of correction components every 8-10m on the return section to form a segmented forced correction unit, with the initial pre-deflection angle set at +5° to prevent unloaded deviation.

[0042] Furthermore, the maximum adjustment range of the correction component on one side is 150mm, and bidirectional correction is achieved by coordinating the adjustment nut on the opposite side.

[0043] Furthermore, when one side is adjusted to its limit, α=20°, corresponding to a lead screw movement of 150mm:

[0044] The opposite adjusting nut is rotated synchronously to drive the opposite lead screw to move, balancing the belt tension. During the adjustment process, the single rotation is strictly limited to ≤1 revolution to avoid aggravating the deviation.

[0045] Furthermore, each rotation of the adjusting nut corresponds to a 5mm axial movement of the adjusting screw, and during the adjustment process, the adjusting nut rotates ≤1 turn at a time.

[0046] Specific implementation process of this utility model:

[0047] Taking a long-distance belt conveyor with a DN1000 diameter and a length of 40m as an example

[0048] Two sets of correction components are symmetrically installed every 8m on the return section. The initial pre-deflection angle is set to +5°, deflecting towards the inside of the belt to prevent unloaded deviation.

[0049] Use a torque wrench to tighten the adjusting nut to a torque of 25 Nm to ensure that the force is evenly distributed on both sides of the bracket.

[0050] When the belt misalignment is greater than 50mm, rotate the adjusting nut on one side, with each rotation being ≤1 turn, corresponding to a 5mm movement of the lead screw. Observe the belt running status until the misalignment is ≤10mm.

[0051] During each maintenance cycle, the angle deviation of the idler rollers is detected using a laser alignment instrument, and fine adjustments are made as necessary.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A forced alignment device for a belt conveyor, characterized in that, include: Forced alignment idler assembly, adjustable support; The forced alignment roller assembly includes a lower roller, both ends of which are connected to the roller bracket via bearing seats, and the lower roller is rotatable about the axial direction. The adjustable bracket consists of a fixed slide, an adjusting screw, and an adjusting nut; wherein the fixed slide is galvanized, and the adjusting screw has a pitch of 5mm and an accuracy of ±0.1mm. The two ends of the idler roller bracket are fixed to the belt conveyor frame by bolts and are hinged to the fixed slide rail to form a fulcrum. The adjusting nut is threadedly connected to the adjusting screw, and rotating the adjusting nut drives the adjusting screw to move axially.

2. The forced alignment device for a belt conveyor according to claim 1, characterized in that, When the adjusting nut rotates, it drives the adjusting screw to move axially, causing the roller bracket to deflect around the fulcrum of the fixed slide, so that the angle α between the lower roller and the belt running direction can be steplessly adjusted within the range of 0° to 20°.

3. The forced alignment device for a belt conveyor according to claim 1, characterized in that, The device symmetrically arranges two sets of correction components every 20-30m on the return section of the belt conveyor, forming a segmented forced correction unit.

4. The forced alignment device for a belt conveyor according to claim 1, characterized in that, The maximum adjustment range of the correction device on one side is 150mm, and bidirectional correction is achieved by coordinating the adjustment nut on the opposite side.

5. A forced alignment device for a belt conveyor according to claim 1, characterized in that, The adjusting nut rotates one revolution, which corresponds to an axial movement of 5mm on the adjusting screw.

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