Anti-deviation protection device for conveying belt

Abstract

The utility model relates to the technical field related to conveying, in particular to an anti-deviation protection device for a conveying belt, which comprises a support and a rotating shaft rotatably mounted on the support, one end of the rotating shaft is connected with a springback structure, a vertical roller is fixed at the other end of the rotating shaft, the length direction of the vertical roller is perpendicular to the length direction of the rotating shaft, and the vertical roller is contacted with the belt. The support is used for rotating relative to the support when the belt deviates; the device further comprises at least one proximity switch installed on the support, the proximity switch is connected with an alarm device, and an induction touch block used for triggering the proximity switch to act is installed on the vertical roller. When the belt deviates, the vertical roller rotates relative to the support under the action of friction force and drives the induction touch block to rotate along with the vertical roller, and when the induction touch block rotates to the proximity switch, the proximity switch is triggered, so that the alarm device executes an alarm action to remind a worker of overhauling. The corrosion resistance of the device is improved, and the maintenance difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a conveying related technical field, specifically a conveying belt deviation prevention protection device. BACKGROUND

[0002] Belt conveyor: mainly by rack, conveying belt, belt roller, tensioning device, transmission device etc. composition, is used to convey loose material or piece goods. According to conveying process requirement, can single -unit conveying, also can multiple composition or with different conveying equipment and form horizontal or inclined conveying system.

[0003] In order to prevent the conveying belt on the belt conveyor from deviating, affecting the conveying effect, conveying belt deviation prevention device is generally set to facilitate the quick response of staff maintenance.

[0004] The deviation prevention protection device on the market is mostly metal shell type, and the internal trigger circuit adopts mechanical contact point, which has the defect of poor corrosion resistance, especially in the coastal, along the river, conveying mineral production environment, metal shell, fixed screw and mechanical contact point are more easily corroded by sulfur, sodium and other acidification, resulting in difficult maintenance and high cost. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a conveying belt deviation prevention protection device to solve the problems in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A conveying belt deviation prevention protection device, comprising:

[0008] A support and a rotating shaft rotatably installed on the support, one end of the rotating shaft is connected to a rebound structure, and the other end is fixed with a vertical roller, the length direction of the vertical roller is perpendicular to the length direction of the rotating shaft, the vertical roller is in contact with the belt and is used to rotate relative to the support when the belt deviates;

[0009] Further comprising at least one proximity switch installed on the support, the proximity switch is connected to an alarm device, and an induction bump for triggering the action of the proximity switch is installed on the vertical roller.

[0010] The conveying belt deviation prevention protection device as described above: the side of the support away from the vertical roller is provided with a protective cover, and an embedded groove is formed in the protective cover;

[0011] The rebound structure is installed in the embedded groove and is connected to the rotating shaft inserted into the embedded groove.

[0012] The conveying belt deviation prevention protection device as described above: the protective cover is made of high molecular plastic.

[0013] The resilient structure comprises a torsion spring, the torsion spring is sleeved on the rotating shaft, and two ends of the torsion spring are respectively in abutment with a second contact fixed on the inner wall of the embedded groove and a first contact fixed on the rotating shaft.

[0014] The proximity switch is provided with two, and is distributed along the rotating direction of the vertical roller.

[0015] The rotating shaft is fixed with a mounting block, and the vertical roller is fixed with the mounting block through bolts.

[0016] The rotating shaft on the side of the support towards the vertical roller is fixed with a second limiting block, and the support is provided with a first limiting block, when the belt is not deviated, the first limiting block and the second limiting block are in abutment state.

[0017] The support is provided in a disc structure, and two mounting frames are mounted on the support.

[0018] The side of the support towards the vertical roller is further provided with a limiting piece, and the limiting piece is in sliding contact with the vertical roller.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] When the belt is deviated, the vertical roller rotates relative to the support under the action of friction force, and drives the sensing bump to rotate, when the sensing bump rotates to the proximity switch, the proximity switch is triggered, so that the alarm device executes the alarm action, to remind the staff to respond quickly, in the embodiment, the proximity switch is used instead of the internal cam switch, which effectively improves the corrosion resistance of the device, reduces the maintenance difficulty, and the structure is simple;

[0021] By using high molecular plastics instead of traditional metal shell, the corrosion resistance and maintenance difficulty are improved, one end of the rotating shaft and the resilient structure are embedded in the protective cover, which can seal and protect the spring, so that the device is more durable. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic view of the conveying belt deviation prevention protection device.

[0023] Figure 2 It is a front view of the conveying belt deviation prevention protection device.

[0024] Figure 3It is the state diagram of the support and the rebound structure separation in the conveying belt deviation protection device.

[0025] Figure 4 It is the internal structure display drawing of the support and the protective cover in the conveying belt deviation protection device.

[0026] Figure 5 It is the structure diagram of another embodiment of the conveying belt deviation protection device.

[0027] In the figure: 1-support, 2-protective cover, 3-vertical roller, 4-sensing bump, 5-proximity switch, 6-mounting frame, 7-mounting block, 8-first limiting block, 9-second limiting block, 10-torsional spring, 11-first contact piece, 12-rotating shaft, 13-embedded groove, 14-second contact piece, 15-limiting piece. DETAILED DESCRIPTION

[0028] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numbers in the drawings represent the same or similar elements. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0029] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations.

[0030] In addition, in order to better illustrate the present application, a large number of specific details are given in the specific embodiments below. Those skilled in the art should understand that without certain specific details, the present application can also be implemented. In some examples, methods, means, elements well known to those skilled in the art are not described in detail, in order to highlight the main idea of the present application.

[0031] Please refer to Figures 1-4 In the embodiment of the utility model, a conveying belt deviation protection device, including support 1 and rotating shaft 12 that is rotatably installed on the support 1, one end of the rotating shaft 12 is connected with rebound structure, the other end is fixed with vertical roller 3, the length direction of the vertical roller 3 is perpendicular to the length direction of the rotating shaft 12, the vertical roller 3 contacts with the belt, and is used to rotate relative to the support 1 when the belt deviates, still including at least one proximity switch 5 installed on the support 1, the proximity switch 5 is connected with alarm device, the vertical roller 3 is installed with sensing bump 4 for triggering the action of the proximity switch 5.

[0032] When the belt is offset, the vertical roller 3 rotates relative to the support 1 under the action of friction, and drives the induction bump 4 to rotate, when the induction bump 4 rotates to the proximity switch 5, the proximity switch 5 is triggered, so that the alarm device executes the alarm action, to remind the staff to respond quickly, in the embodiment, the proximity switch 5 replaces the internal cam switch (triggered by cam rotation), effectively improving the corrosion resistance of the device, reducing the maintenance difficulty, and the structure is simple.

[0033] It should be noted that the proximity switch 5 is an inductive proximity switch, which has a protection level of IP65 or above, and does not need to be installed with an outer cover for protection, which is conducive to detection and disassembly, and makes the deviation protection device more easily maintained.

[0034] Preferably, the proximity switch 5 is provided with two, and is spaced along the rotation direction of the vertical roller 3, and is respectively used for one-level deviation and two-level deviation action signal, for judging the deviation of the belt, of course, in the specific implementation process, the number of proximity switches 5 can be selected according to the needs, and the distance between the two adjacent proximity switches 5.

[0035] The support 1 described above is made of carbon steel material, which has the characteristics of wear resistance, corrosion resistance and high mechanical strength.

[0036] In order to eliminate the wear phenomenon caused by the direct contact between the vertical roller 3 and the belt, a cylinder is rotatably installed on the vertical roller 3, and the cylinder abuts against the belt.

[0037] Further, please refer to Figure 3 and Figure 4 , the support 1 is installed with a protective cover 2 away from the vertical roller 3, the protective cover 2 is formed with an embedded groove 13, the rebound structure is installed in the embedded groove 13, and is connected with the rotating shaft 12 inserted into the embedded groove 13, wherein the protective cover 2 is made of high molecular plastic.

[0038] In the embodiment, the high molecular plastic is used instead of the traditional metal shell, which improves the corrosion resistance and reduces the maintenance difficulty, and the one end of the rotating shaft 12 and the rebound structure are embedded in the protective cover 2, which can seal and protect the spring to some extent, so that the device is more durable.

[0039] The rebound structure described above includes a torsion spring 10, the torsion spring 10 is sleeved on the rotating shaft 12, and the two ends of the torsion spring 10 respectively abut against the second contact 14 fixed on the inner wall of the embedded groove 13 and the first contact 11 fixed on the rotating shaft 12.

[0040] When the belt is deviated, the vertical roller 3 rotates, thereby driving the rotating shaft 12 to rotate, and the torsional spring 10 is elastically deformed through the action of the first contact 11 and the second contact 14 when the rotating shaft 12 rotates, and the vertical roller 3 is reset under the action of the torsional spring 10 when the belt is returned to normal.

[0041] In an embodiment, the rotating shaft 12 is fixed with a mounting block 7, and the vertical roller 3 is fixed with the mounting block 7 through bolts, thereby facilitating the disassembly and replacement of the vertical roller 3.

[0042] Further, the rotating shaft 12 on the side of the support 1 towards the vertical roller 3 is fixed with a second limiting block 9, and the support 1 is provided with a first limiting block 8, and the first limiting block 8 and the second limiting block 9 are kept in abutting state when the belt is not deviated, thereby ensuring that the vertical roller 3 does not reversely rotate due to the action of the torsional spring 10 when the belt is not deviated, and ensuring that the vertical roller 3 always keeps in contact with the belt, so as to improve the protection effect.

[0043] In order to facilitate installation, the support 1 is provided in a disc structure, and the support 1 is provided with two mounting racks 6, and the mounting rack 6 is formed with a through hole for a screw to penetrate, and the mounting rack 6 can be fixed at a required position through the screw, so as to maintain the stability of the mounting rack 6 and the whole mounted on the support 1.

[0044] Please refer to Figure 5 In another embodiment, the side of the support 1 towards the vertical roller 3 is further provided with a limiting piece 15, and the limiting piece 15 is in sliding contact with the vertical roller 3, and preferably, the limiting piece 15 is provided in an annular structure, and the limiting piece 15 is used to prevent the vertical roller 3 from deforming towards the support 1, so as to prevent the inductive bump 4 from hitting the proximity switch 5 when the vertical roller 3 rotates, thereby playing a certain protection role on the proximity switch 5.

[0045] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0046] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A conveyor belt misalignment protection device, characterized in that, The utility model relates to a kind of safety device for belt conveyor, including: Support (1) and rotating shaft (12) rotatably installed on the support (1), one end of the rotating shaft (12) is connected to resilient structure, the other end is fixed with vertical roller (3), the length direction of the vertical roller (3) is perpendicular to the length direction of the rotating shaft (12), the vertical roller (3) is contacted with belt, for rotating relative to support (1) when belt is offset; Further comprising at least one proximity switch (5) installed on the support (1), the proximity switch (5) is connected to alarm device, the vertical roller (3) is installed with inductive bump (4) for triggering the action of the proximity switch (5).

2. A conveyor belt misalignment protection device according to claim 1, characterized in that, The side of the support (1) away from the vertical roller (3) is provided with a protective cover (2), and an embedded groove (13) is formed in the protective cover (2); The resilient structure is installed in the embedded groove (13) and connected with the rotating shaft (12) inserted into the embedded groove (13).

3. A conveyor belt misalignment protection device according to claim 2, characterized in that The protective cover (2) is made of high polymer plastic.

4. A conveyor belt misalignment protection device according to claim 2, wherein The resilient structure includes a torsion spring (10), the torsion spring (10) is sleeved on the rotating shaft (12), and the two ends of the torsion spring (10) are respectively abutted with a second contact (14) fixed on the inner wall of the embedded groove (13) and a first contact (11) fixed on the rotating shaft (12).

5. A conveyor belt misalignment protection device according to claim 1, wherein The proximity switch (5) is provided with two, and is spaced along the rotation direction of the vertical roller (3).

6. A conveyor belt misalignment protection device according to claim 1, wherein The rotating shaft (12) is fixed with a mounting block (7), and the vertical roller (3) is fixed with the mounting block (7) by bolts.

7. A conveyor belt misalignment protection device according to claim 1, wherein The second limiting block (9) is fixed on the rotating shaft (12) on the side of the support (1) facing the vertical roller (3), and the first limiting block (8) is arranged on the support (1), when the belt is not offset, the first limiting block (8) and the second limiting block (9) are in abutting state.

8. A conveyor belt misalignment protection device according to claim 1, wherein The support (1) is provided in a disc structure, and two mounting racks (6) are mounted on the support (1).

9. A conveyor belt misalignment protection device according to claim 1, wherein The side of the support (1) facing the vertical roller (3) is further provided with a limiting piece (15), and the limiting piece (15) is in sliding contact with the vertical roller (3).

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