Chain-falling-prevention detection device for pipe chain conveyor

Abstract

The utility model relates to the technical field of pipe chain conveyors, in particular to a pipe chain conveyor chain falling prevention detection device which comprises a chain, a chain wheel and a box body, a plurality of chain plates are installed on the chain at intervals, and the chain plates are attached to chain scraping plates. One end of the chain scraping plate is rotationally installed on the box body and is reset through a torsional spring, the other end of the chain scraping plate abuts against or is hinged to the induction guide rod, a guide sleeve is installed at the top of the box body, a spring is installed on the induction guide rod and penetrates through a round hole in the top of the box body and the guide sleeve, and a sensor is installed above the induction guide rod. The chain separation prevention effect is achieved by controlling the displacement of the chain plate and the chain wheel in the radial direction, the sensor is used for detecting the displacement state of the induction guide rod to detect whether the chain scraper is separated from the chain, signals of the sensor are fed back to the central control room to be locked with starting and stopping of the motor, and the chain separation fault can be found and processed in time; therefore, stable operation of equipment is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of tube chain conveyors, and particularly relates to an anti-derailment detection device for a tube chain conveyor. Background Technique

[0002] In the production processes of many industries such as petroleum, chemical industry, medicine, grain, food, electric power, building materials, metallurgy, and mines, conveying equipment is essential, and a tube chain conveyor is one of the conveying equipment. During the process of conveying materials by the tube chain conveyor, the separation of the chain and the sprocket is a common fault. In view of this, as disclosed in Chinese Patent Publication No. CN211076168U, titled "A Tooth Disc Auxiliary Wheel Flywheel and an Anti-derailment Chain Transmission Device", movable chain scrapers are movably arranged at the upper end, lower end, and right side of the front side of the flywheel, and semi-circular chain scrapers are movably arranged around the right end of the front side of the auxiliary wheel. A plurality of mounting pins are movably arranged at one end of the right side of the semi-circular chain scraper close to the auxiliary wheel. In the utility model, movable chain scrapers are installed at the upper end, lower end, and right side of the front side of the flywheel, and the movable plates are all in a fan-shaped structure. In this way, the area of protective shielding is increased through the fan-shaped structure, and a semi-circular chain scraper is also installed at the right front end of the auxiliary wheel, and the front end of the semi-circular chain scraper far from the auxiliary wheel is butted against the movable chain scraper. In this way, a protective body can be formed outside the chain to prevent the chain from falling off during chain transmission. Moreover, a plurality of mounting pins are installed around the right side of the semi-circular chain scraper, which is convenient for disassembling and installing the semi-circular chain scraper through the mounting pins for maintenance and replacement.

[0003] Assuming that the above-mentioned chain scraper structure is applied to a tube chain conveyor, the above structure can only play a certain role in preventing chain derailment. However, once the chain falls off, it cannot be detected in time. Content of the Utility Model

[0004] The utility model solves the problems in the related technology, and provides an anti-derailment detection device for a tube chain conveyor. By controlling the displacement of the chain plate in the radial direction of the sprocket, the effect of preventing chain derailment is achieved, and a sensor is used to detect the displacement state of the induction guide rod to detect whether the chain scraper is derailed. The signal of the sensor is fed back to the central control room and is mutually locked with the start and stop of the motor, which can timely detect and handle the fault of chain derailment, thereby ensuring the stable operation of the equipment, effectively preventing further system damage caused by equipment failure shutdown, reducing economic losses, and the manufacturing and maintenance costs of this anti-derailment structure are low.

[0005] To solve the above technical problems, the present utility model is realized through the following technical solutions: A chain-off prevention detection device for a tube chain conveyor, comprising a chain, a sprocket, and a box body. A plurality of chain plates are installed at intervals on the chain, and the chain plates are in contact with the chain scraper; one end of the chain scraper is rotatably installed on the box body and reset by a torsion spring, the other end of the chain scraper abuts against an induction guide rod, a guide sleeve is installed on the top of the box body, a spring is installed on the induction guide rod and passes through a circular hole and the guide sleeve on the top of the box body, and a sensor is installed above the induction guide rod.

[0006] A chain-off prevention detection device for a tube chain conveyor, comprising a chain, a sprocket, and a box body. A plurality of chain plates are installed at intervals on the chain, and the chain plates are in contact with the chain scraper; one end of the chain scraper is rotatably installed on the box body and reset by a torsion spring, a waist-shaped hole is provided at the other end of the chain scraper, the induction guide rod is installed in the waist-shaped hole through a pin shaft, a guide sleeve is installed on the top of the box body, the induction guide rod passes through the guide sleeve and the top of the box body, and a sensor is installed above the induction guide rod.

[0007] As a preferred solution, the chain scraper is installed on the box body through a rotating shaft, and a torsion spring is installed on the rotating shaft.

[0008] As a preferred solution, the side of the chain plate in contact with the chain scraper has an arc surface tangent to the chain plate.

[0009] As a preferred solution, the sensor is a contact sensor or a non-contact sensor.

[0010] As a preferred solution, a roller is installed at one end of the induction guide rod that abuts against the chain scraper.

[0011] Compared with the prior art, the beneficial effects of the present utility model are: The present utility model achieves the effect of preventing chain-off by controlling the displacement of the chain plate in the radial direction of the sprocket, and uses a sensor to detect the displacement state of the induction guide rod to detect whether the chain scraper is off the chain. The signal of the sensor is fed back to the central control room and the start and stop of the motor are mutually locked, which can timely detect and handle the fault of the chain off the chain, thereby ensuring the stable operation of the equipment, effectively preventing further system damage caused by equipment failure shutdown, reducing economic losses, and the cost of manufacturing and maintaining this chain-off prevention structure is low. Description of the Drawings

[0012] Figure 1 is the front view of Embodiment 1 of the present utility model;

[0013] Figure 2 is the present utility model Figure 1 the enlarged view of part A in;

[0014] Figure 3 is the side view of Embodiment 1 of the present utility model;

[0015] Figure 4 is the front view of Embodiment 2 of the present utility model;

[0016] Figure 5 is of the present utility model Figure 4 the enlarged view of Location B.

[0017] In the figure:

[0018] 1. Chain, 2. Sprocket, 3. Box body, 4. Chain plate, 5. Chain scraper, 6. Inductive guide rod, 7. Sensor, 8. Guide sleeve, 9. Torsion spring, 10. Rotating shaft, 11. Roller. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. The description of at least one exemplary embodiment below is actually only illustrative and in no way limits the present utility model and its application or use. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or their combinations.

[0021] Unless otherwise specifically stated, the relative arrangements of the components and steps set forth in these embodiments, numerical expressions, and values do not limit the scope of the present utility model. At the same time, it should be understood that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present utility model; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0023] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "upper...", etc. can be used here to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the figure for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0024] In addition, it should be noted that using words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without additional statement, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present utility model.

[0025] Embodiment 1

[0026] As Figures 1 to 3 shown, a chain - off prevention detection device for a tube - chain conveyor includes a chain 1, a sprocket 2, and a box body 3. A plurality of chain plates 4 are installed on the chain 1 at intervals. In the normal state (non - chain - off state), the chain plates 4 are in contact with the chain scraper 5. One end of the chain scraper 5 is rotatably installed on the box body 3 through a rotating shaft 10, and a torsion spring 9 is installed on the rotating shaft 10. When the chain scraper 5 is separated from the chain plate 4, the chain scraper 5 can be reset by the torsion spring 9. The other end of the chain scraper 5 abuts against the induction guide rod 6. A guide sleeve 8 is installed on the top of the box body 3. A spring is installed on the induction guide rod 6 and passes through the round hole on the top of the box body 3 and the guide sleeve 8. A sensor 7 is installed above the induction guide rod 6.

[0027] In one embodiment, the side of the chain scraper 5 that fits against the chain plate 4 has an arc surface that is tangent to the chain plate 4, thus facilitating the fit with the chain plate 4.

[0028] In one embodiment, the sensor 7 can be a contact sensor or a non-contact sensor according to the specific usage situation. The signal of the sensor 7 can be fed back to the central control room and interlocked with the motor signal.

[0029] In one embodiment, in order to reduce friction, a roller 11 is installed at one end of the induction guide rod 6 that abuts against the chain scraper 5.

[0030] In this embodiment, when the chain 1 is in the correct position, the chain scraper 5 fits against the chain plate 4, and the sensor 7 can sense the signal of the induction guide rod 6 (if the sensor 7 is a contact sensor, at this time the induction guide rod 6 is in contact with the sensor 7; if the sensor 7 is a non-contact sensor, at this time the induction guide rod 6 is within the sensing distance of the sensor 7). At this time, the spring on the induction guide rod 6 is in a compressed state; when the chain scraper 5 is in an incorrect position (i.e., when the chain is off the track), the chain scraper 5 is separated from the chain plate 4, and the chain scraper 5 is reset under the action of the torsion spring 9, that is, one end of the chain scraper 5 that abuts against the induction guide rod 6 moves downward. At this time, the induction guide rod 6 also moves downward under the action of the spring, and the sensor 7 cannot detect the displacement signal of the induction guide rod 6. At this time, the sensor 7 feeds back the signal to the central control room and the motor, and the motor stops under the start-stop interlock signal. After receiving the feedback signal, the central control room arranges for maintenance. Therefore, the function can timely detect and handle the fault of the chain off the track, reduce the further damage degree of the equipment when the equipment fails and stops, and reduce the economic loss.

[0031] Embodiment 2

[0032] As Figure 4 and 5 shown, a chain conveyor anti-derailment detection device includes a chain 1, a sprocket 2, and a box body 3. A number of chain plates 4 are installed at intervals on the chain 1. In the normal state (when the chain is not derailed), the chain plate 4 is in contact with the chain scraper 5; one end of the chain scraper 5 is rotatably installed on the box body 3 through a rotating shaft 10, and a torsion spring 9 is installed on the rotating shaft 10 and can be reset through the torsion spring 9. A connecting plate is installed at the top of the other end of the chain scraper 5, and a waist-shaped hole is opened on the connecting plate. The induction guide rod 6 is installed in the waist-shaped hole through a pin shaft so as to slide in the waist-shaped hole. A guide sleeve 8 is installed on the top of the box body 3, and the induction guide rod 6 passes through the guide sleeve 8 and the top of the box body 3. A sensor 7 is installed above the induction guide rod 6.

[0033] In one embodiment, the side of the chain scraper 5 that fits against the chain plate 4 has an arc surface that is tangent to the chain plate 4, thus facilitating the fit with the chain plate 4.

[0034] In one embodiment, the sensor 7 can be a contact sensor or a non-contact sensor according to the specific usage. The signal of the sensor 7 can be fed back to the central control room and interlocked with the motor signal.

[0035] In this embodiment, when the chain 1 is in the correct position, the chain scraper 5 fits against the chain plate 4, and the sensor 7 can sense the signal of the induction rod 6 (if the sensor 7 is a contact sensor, the induction rod 6 is in contact with the sensor 7 at this time; if the sensor 7 is a non-contact sensor, the induction rod 6 is within the sensing distance of the sensor 7). When the chain scraper 5 is in an incorrect position (i.e., derailed), the chain scraper 5 is separated from the chain plate 4, and the chain scraper 5 is reset under the action of the torsion spring 9, that is, the chain scraper 5 presses against one end of the induction rod 6 and moves downward, thereby driving the induction rod 6 to move downward. The sensor 7 cannot detect the displacement signal of the induction rod 6. At this time, the signal is fed back to the central control room and the motor through the sensor 7, and the motor stops under the start-stop interlock signal. After receiving the feedback signal, the central control room arranges maintenance. Therefore, the function can timely detect and handle the fault of chain derailment, reduce the further damage degree of the equipment when the equipment fails and stops, and reduce the economic loss.

[0036] The above is the preferred embodiment of the present invention. Those skilled in the art to which the present invention pertains can also make changes and modifications to the above embodiment. Therefore, the present invention is not limited to the above specific embodiments, and any obvious improvements, substitutions or variations made by those skilled in the art based on the present invention all fall within the protection scope of the present invention.

Claims

1. A chain - tube conveyor anti - derailment detection device, comprising a chain (1), a sprocket (2) and a box body (3). A plurality of chain plates (4) are installed on the chain (1) at intervals, and it is characterized in that: The link plate (4) is in contact with the chain scraper (5); one end of the chain scraper (5) is rotatably installed on the box body (3) and reset by a torsion spring (9), the other end of the chain scraper (5) abuts against the induction guide rod (6), a guide sleeve (8) is installed on the top of the box body (3), a spring is installed on the induction guide rod (6) and the induction guide rod (6) passes through a round hole at the top of the box body (3) and the guide sleeve (8), and a sensor (7) is installed above the induction guide rod (6).

2. The chain tube conveyor anti-derailment detection device according to claim 1, characterized in that: A roller (11) is installed at one end of the induction guide rod (6) that abuts against the chain scraper (5).

3. A chain tube conveyor anti-derailment detection device, comprising a chain (1), a sprocket (2) and a box body (3), wherein a plurality of chain plates (4) are installed on the chain (1) at intervals, and it is characterized in that: The link plate (4) is in contact with the chain scraper (5); one end of the chain scraper (5) is rotatably installed on the box body (3) and reset by a torsion spring (9), a waist-shaped hole is provided at the other end of the chain scraper (5), and the induction guide rod (6) is installed in the waist-shaped hole through a pin shaft. A guide sleeve (8) is installed on the top of the box body (3), the induction guide rod (6) passes through the guide sleeve (8) and the top of the box body (3), and a sensor (7) is installed above the induction guide rod (6).

4. The chain tube conveyor anti-derailment detection device according to any one of claims 1 or 3, characterized in that: The chain scraper (5) is installed on the box body (3) through a rotating shaft (10), and a torsion spring (9) is installed on the rotating shaft (10).

5. The chain tube conveyor anti-derailment detection device according to any one of claims 1 or 3, characterized in that: The side of the chain scraper (5) in contact with the link plate (4) has an arc surface tangent to the link plate (4).

6. The chain tube conveyor anti-derailment detection device according to any one of claims 1 or 3, characterized in that: The sensor (7) is a contact sensor or a non-contact sensor.

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