Safety protection device of belt conveyor for mining

Abstract

The utility model discloses a belt conveyor safety protection device for mining, which comprises a pressure detection mechanism for detecting the eccentricity of ores on a conveyor belt mechanism and a correction protection mechanism for correcting the eccentric ores, and the correction protection mechanism is arranged in the discharging direction of the pressure detection mechanism. The bottom of the pressure detection mechanism and the bottom of the correction protection mechanism are both connected with a supporting mechanism used for fixing and transmitting oil pressure, and a buffering matching mechanism used for buffering and correcting power is installed on the correction protection mechanism. The protection effect is improved by conveying and straightening ores, and excessive impact on the ores and the conveying belt in the correction process is avoided by adopting a quick stretching and retracting and buffering mode of the buffering matching mechanism, so that the safety in the correction process is improved, and the correction protection effect is ensured.

Description

Technical Field

[0001] This utility model relates to the field of mine protection, and in particular to a safety protection device for belt conveyors used in mine operations. Background Technology

[0002] The safety protection device for belt conveyors used in mining is a comprehensive system that integrates sensing and monitoring, automatic control and mechanical protection. It is mainly used to detect abnormalities in the operation of the conveyor belt in real time (such as belt deviation, tearing, slippage, coal piling, overheating, etc.) and trigger emergency shutdown protection actions when danger occurs.

[0003] In the prior art, compared with the Chinese utility model with announcement number CN207375182U, a safety protection device for belt conveyors in mining is disclosed. It protects both sides of the conveyor belt by adding protective nets on both sides. However, it has been found that the main reason for the ore falling off the conveyor is that the ore is uneven when it is dropped, which causes one side of the conveyor belt to be unbalanced. Under the condition of gravity eccentricity, the conveyor belt derails or deviates, causing the ore to fall. Moreover, long-term eccentricity can easily cause the conveyor belt to be damaged due to excessive stress. Utility Model Content

[0004] The purpose of this utility model is to provide a safety protection device for belt conveyors used in mining operations in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A safety protection device for a belt conveyor used in mining includes a pressure detection mechanism for detecting eccentricity of ore on the conveyor belt mechanism and a correction protection mechanism for correcting eccentric ore. The correction protection mechanism is installed in the discharge direction of the pressure detection mechanism. The bottom of both the pressure detection mechanism and the correction protection mechanism is connected to a support mechanism for fixing and transmitting hydraulic pressure. A buffering mechanism for buffering the correction power is installed on the correction protection mechanism.

[0007] The pressure detection mechanism includes a pressure plate and a pressure cylinder. The bottom of the pressure plate is connected to the oil pipe seat of the support mechanism via the pressure cylinder. The correction and protection mechanism includes a support plate. The bottom of the support plate is connected to the oil pipe seat via a support cylinder. The oil pipe seat has an oil cavity and a reset component inside. The top of the oil pipe seat has a mounting seat. An inner telescopic plate is slidably connected inside the support plate on the side corresponding to the mounting seat. Both the pressure plate and the inner telescopic plate are connected to the mounting seat on one side via connecting seats.

[0008] Preferably, the buffer engagement mechanism includes a limiting frame, which is installed on the bottom surface of the support plate. A slide block is slidably connected to the inner side of the limiting frame. The bottom of the slide block is connected to the piston rod of the support cylinder via a pin. The slide block is slidably connected to the limiting frame via a slide rod, and a support spring for supporting the sliding of the slide block is sleeved on the slide rod.

[0009] Preferably, the limiting frame is connected to the support plate by welding, and the slide is slidably connected to the limiting frame by a slide rail. The sliding range of the slide inside the limiting frame is one-quarter of the width of the conveyor belt of the conveyor belt mechanism.

[0010] Preferably, the inner telescopic plate rotates around the connecting seat as an axis, and the rotation angle of the inner telescopic plate is 30°-60°.

[0011] Preferably, the pressure detection mechanism is located in the middle between the first set of support wheels and the second set of support wheels on the conveyor belt mechanism, and the correction and protection mechanism is located in the middle between the second set of support wheels and the third set of support wheels on the conveyor belt mechanism.

[0012] Preferably, the top of the pressure cylinder is connected to the pressure plate via a support, and the bottom of the pressure cylinder is connected to the oil pipe seat via a support.

[0013] Preferably, the reset assembly inside the oil pipe seat includes a piston, a reset spring, and a squeezing oil chamber. The piston is slidably connected to the squeezing oil chamber, and the reset spring is correspondingly installed on one side of the correction and protection mechanism.

[0014] Compared with existing technologies, the beneficial effects are as follows:

[0015] Retrofitting existing equipment is simple, reducing retrofitting costs and improving efficiency. It adopts an active correction and protection method, which has a faster response speed compared to existing passive protection methods. It improves the protection effect by straightening the ore during conveying, and uses a buffer mechanism with rapid extension and buffering to avoid excessive impact on the ore and conveyor belt during the correction process, thus improving the safety of the correction process and ensuring the effectiveness of the correction and protection. Attached Figure Description

[0016] 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of the structure of a safety protection device for a belt conveyor used in mining, as described in this utility model.

[0018] Figure 2 This is a schematic diagram of the bottom structure of the conveyor belt of a safety protection device for a belt conveyor used in mining, as described in this utility model.

[0019] Figure 3 This is a first-view structural diagram of the pressure detection mechanism and correction and protection mechanism of a safety protection device for belt conveyors used in mining, as described in this utility model.

[0020] Figure 4 This is a second-view structural diagram of the pressure detection mechanism and correction protection mechanism of a safety protection device for belt conveyors used in mining, as described in this utility model.

[0021] Figure 5 This is a schematic diagram of the compression state structure of the corrective protection mechanism of a safety protection device for belt conveyors used in mining, as described in this utility model.

[0022] Figure 6 This is a schematic diagram of the corrective protection mechanism in the expanded state of a safety protection device for belt conveyors used in mining, as described in this utility model.

[0023] Figure 7 This is a side view of the compression state of the corrective protection mechanism of the safety protection device for belt conveyors used in mining, as described in this utility model.

[0024] Figure 8 This is a side view of the expanded state of the corrective protection mechanism of a safety protection device for belt conveyors used in mining, as described in this utility model.

[0025] Figure 9 This is a schematic diagram of the internal structure of the oil pipe seat of a safety protection device for belt conveyors used in mining, as described in this utility model.

[0026] The annotations in the attached figures are explained as follows:

[0027] 1. Conveyor belt mechanism; 2. Support mechanism; 3. Pressure detection mechanism; 4. Corrective and protective mechanism; 5. Buffering mechanism; 11. Conveyor belt; 21. Oil pipe seat; 22. Mounting seat; 31. Pressure plate; 32. Pressure cylinder; 41. Support plate; 42. Support cylinder; 43. Connecting seat; 44. Inner telescopic plate; 51. Limiting frame; 52. Slide seat; 53. Slide rod; 54. Support spring. Detailed Implementation

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and 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 of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The present invention will be further described below with reference to the accompanying drawings:

[0031] like Figures 1-9 As shown, a safety protection device for a belt conveyor used in mining includes a pressure detection mechanism 3 for detecting eccentricity of ore on the conveyor belt mechanism 1 and a correction protection mechanism 4 for correcting eccentric ore. The correction protection mechanism 4 is installed in the discharge direction of the pressure detection mechanism 3. The bottom of both the pressure detection mechanism 3 and the correction protection mechanism 4 is connected to a support mechanism 2 for fixing and transmitting hydraulic pressure. A buffering mechanism 5 for buffering the correction power is installed on the correction protection mechanism 4.

[0032] The pressure detection mechanism 3 includes a pressure plate 31 and a pressure cylinder 32. The bottom of the pressure plate 31 is connected to the oil pipe seat 21 of the support mechanism 2 through the pressure cylinder 32. The correction and protection mechanism 4 includes a support plate 41. The bottom of the support plate 41 is connected to the oil pipe seat 21 through the support cylinder 42. The oil pipe seat 21 is provided with an oil cavity and a reset component inside. The top of the oil pipe seat 21 is provided with a mounting seat 22. The support plate 41 is slidably connected to one side of the mounting seat 22. The pressure plate 31 and the inner telescopic plate 44 are both connected to the mounting seat 22 through a connecting seat 43 on one side.

[0033] In this embodiment, the buffer engagement mechanism 5 includes a limiting frame 51, which is installed on the bottom surface of the support plate 41. A slide block 52 is slidably connected to the inner side of the limiting frame 51. The bottom of the slide block 52 is connected to the piston rod of the support cylinder 42 through a pin. The slide block 52 is slidably connected to the limiting frame 51 through a slide rod 53. A support spring 54 for supporting the sliding of the slide block 52 is sleeved on the slide rod 53.

[0034] In this embodiment, the limiting frame 51 is connected to the support plate 41 by welding, and the slide block 52 is slidably connected to the limiting frame 51 by the slide rail. The sliding range of the slide block 52 inside the limiting frame 51 is one-quarter of the width of the conveyor belt 11 of the conveyor belt mechanism 1.

[0035] In this embodiment, the inner telescopic plate 44 rotates around the connecting seat 43, and the rotation angle of the inner telescopic plate 44 is 30°-60°.

[0036] In this embodiment, the pressure detection mechanism 3 is located in the middle between the first set of support wheels and the second set of support wheels on the conveyor belt mechanism 1, and the correction and protection mechanism 4 is located in the middle between the second set of support wheels and the third set of support wheels on the conveyor belt mechanism 1.

[0037] In this embodiment, the top of the pressure cylinder 32 is connected to the pressure plate 31 via a support, and the bottom of the pressure cylinder 32 is connected to the oil pipe seat 21 via a support.

[0038] In this embodiment, the reset assembly inside the oil pipe seat 21 includes a piston, a reset spring, and a squeezing oil chamber. The piston is slidably connected to the squeezing oil chamber, and the reset spring is correspondingly installed on one side of the correction and protection mechanism 4.

[0039] Working principle: During use, if the ore being transported on the conveyor belt 11 accumulates at one end, the accumulated ore will exert excessive pressure on one side of the conveyor belt 11, causing one end to become deeper, which may result in tipping over and ore leakage.

[0040] When one end of the conveyor belt 11 is pressed down, it triggers the pressure plate 31, causing it to flip. The flipped pressure plate 31 then compresses the pressure cylinder 32, causing it to contract. The initial hydraulic pressure from the pressure cylinder 32 provides preliminary correction to the ore. Simultaneously, the hydraulic pressure, through the oil pipe and the oil chamber inside the pipe seat 21, compresses the piston. The piston compresses the spring and the oil on the other side, pushing the support cylinder 42 to extend. After the support cylinder 42 extends, it supports the support plate 41 to flip and stand upright via the slide 52. During this standing process, the slide 52 also compresses the support spring 54. When the support plate 41 extends with the inner telescopic plate 44 as a reference, it raises the center of gravity of the support point of the slide 52, and the support position of the bottom of the conveyor belt 11 will also be higher. During the correction of the conveyor belt 11, the higher the support point, the less likely it is to be unable to support due to excessive ore pressure. At the same time, the buffer between the slide 52, the limit frame 51, and the support spring 54 is used to avoid rigid impact, which could cause the conveyor belt 11 to be damaged under the squeezing of the ore and the support plate 41. This ensures the correction of the ore and achieves the protective effect, thereby ensuring the subsequent conveying of ore.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A safety protection device for belt conveyors used in mining operations, characterized in that: It includes a pressure detection mechanism (3) for detecting ore eccentricity on the conveyor belt mechanism (1) and a correction and protection mechanism (4) for correcting eccentric ore. The correction and protection mechanism (4) is installed in the discharge direction of the pressure detection mechanism (3). The bottom of the pressure detection mechanism (3) and the correction and protection mechanism (4) are both connected to a support mechanism (2) for fixing and transmitting oil pressure. The correction and protection mechanism (4) is equipped with a buffering mechanism (5) for buffering the correction power. The pressure detection mechanism (3) includes a pressure plate (31) and a pressure cylinder (32). The bottom of the pressure plate (31) is connected to the oil pipe seat (21) of the support mechanism (2) through the pressure cylinder (32). The correction and protection mechanism (4) includes a support plate (41). The bottom of the support plate (41) is connected to the oil pipe seat (21) through the support cylinder (42). The oil pipe seat (21) is provided with an oil cavity and a reset component. The top of the oil pipe seat (21) is provided with a mounting seat (22). The support plate (41) is slidably connected to an inner telescopic plate (44) on one side corresponding to the mounting seat (22). The pressure plate (31) and the inner telescopic plate (44) are both connected to the mounting seat (22) through a connecting seat (43).

2. The safety protection device for a belt conveyor used in mining operations according to claim 1, characterized in that: The buffer mechanism (5) includes a limiting frame (51), which is installed on the bottom surface of the support plate (41). A slide block (52) is slidably connected to the inner side of the limiting frame (51). The bottom of the slide block (52) is connected to the piston rod of the support cylinder (42) through a pin. The slide block (52) is slidably connected to the limiting frame (51) through a slide rod (53). A support spring (54) supporting the sliding of the slide block (52) is sleeved on the slide rod (53).

3. A safety protection device for a belt conveyor used in mining operations according to claim 2, characterized in that: The limiting frame (51) is connected to the support plate (41) by welding, and the slide (52) is slidably connected to the limiting frame (51) by a slide rail. The sliding range of the slide (52) inside the limiting frame (51) is one-quarter of the width of the conveyor belt (11) of the conveyor belt mechanism (1).

4. A safety protection device for a belt conveyor used in mining operations according to claim 2, characterized in that: The inner telescopic plate (44) rotates around the connecting seat (43) as an axis, and the rotation angle of the inner telescopic plate (44) is 30°-60°.

5. A safety protection device for a belt conveyor used in mining operations according to claim 1, characterized in that: The pressure detection mechanism (3) is located in the middle between the first set of support wheels and the second set of support wheels on the conveyor belt mechanism (1), and the correction and protection mechanism (4) is located in the middle between the second set of support wheels and the third set of support wheels on the conveyor belt mechanism (1).

6. A safety protection device for a belt conveyor used in mining operations according to claim 1, characterized in that: The top of the pressure cylinder (32) is connected to the pressure plate (31) via a support, and the bottom of the pressure cylinder (32) is connected to the oil pipe seat (21) via a support.

7. A safety protection device for a belt conveyor used in mining operations according to claim 1, characterized in that: The reset assembly inside the oil pipe seat (21) includes a piston, a reset spring, and a squeezing oil chamber. The piston is slidably connected to the squeezing oil chamber, and the reset spring is installed on one side of the correction and protection mechanism (4).

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