CN219915959U - Broken pin detection device applied to dumbbell pin, dumbbell pin and hydraulic support system - Google Patents

Abstract

The utility model discloses a broken pin detection device applied to a dumbbell pin, the dumbbell pin and a hydraulic support system, wherein the broken pin detection device comprises a detection wire and a sensor, the detection wire is suitable for being connected to the dumbbell pin and extends along the axial direction of the dumbbell pin, the sensor is mounted on the dumbbell pin, the sensor comprises a shell, an infrared emitter, an infrared receiver and a control circuit board, the infrared emitter, the infrared receiver and the control circuit board are all arranged in the shell, the infrared emitter and the infrared receiver are arranged oppositely, and at least part of the detection wire is positioned between the infrared emitter and the infrared receiver. The broken pin detection device provided by the embodiment of the utility model has the advantages of simple structure, high detection precision and high detection efficiency.

Description

Broken pin detection device applied to dumbbell pin, dumbbell pin and hydraulic support system

Technical Field

The utility model relates to the technical field of underground detection equipment, in particular to a broken pin detection device applied to a dumbbell pin, the dumbbell pin and a hydraulic support system.

Background

In the process of pushing the scraper conveyor by the hydraulic supports, the pushing of each hydraulic support is asynchronous, and the adjacent middle grooves of the scraper conveyor are deflected relatively in the horizontal direction and the vertical direction, so that the stress deformation of the connecting dumbbell pin is caused, the abrasion and fracture of the dumbbell pin are easy to occur, and the fracture failure can lead to dislocation or disconnection of the middle grooves, so that the normal production of a working face is influenced.

The detection of dumbbell pin fracture fault still keeps the traditional manual inspection mode, and scraper conveyor fuselage is long, the manual work is many, detection work load is very big, does not have under the middle part groove and does not have obvious dislocation or the condition of disengaging, is difficult to distinguish the operating condition of dumbbell pin manually, consequently hardly in time makes the judgement to in time change cracked dumbbell pin, manual overhaul inefficiency, and there is the potential safety hazard.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

Therefore, the embodiment of the utility model provides a broken pin detection device with high detection efficiency, which is applied to a dumbbell pin.

The embodiment of the utility model also provides a dumbbell pin with the broken pin detection device.

The embodiment of the utility model also provides a hydraulic support system with the dumbbell pin.

The broken pin detection device applied to the dumbbell pin comprises a detection wire and a sensor, wherein the detection wire is suitable for being connected to the dumbbell pin and extends along the axial direction of the dumbbell pin, the sensor is installed on the dumbbell pin, the sensor comprises a shell, an infrared emitter, an infrared receiver and a control circuit board, the infrared emitter, the infrared receiver and the control circuit board are all arranged in the shell, the infrared emitter and the infrared receiver are oppositely arranged, and at least part of the detection wire is located between the infrared emitter and the infrared receiver.

According to the broken pin detection device, the detection line and the sensor are arranged, and infrared light is used for detecting the detection line, so that the broken fault of the dumbbell pin is detected, the structure is simple, the detection precision is high, the detection efficiency is high, the working state of the dumbbell pin can be judged in time, and the dumbbell pin can be replaced in time.

In some embodiments, the housing comprises a first plate segment, a second plate segment and a third plate segment, one end of the second plate segment is connected with the first plate segment and forms an included angle therebetween, the other end of the second plate segment is connected with the third plate segment and forms an included angle therebetween, the first plate segment and the third plate segment are positioned on the same side of the second plate segment, the infrared transmitter is arranged in the first plate segment, the infrared receiver is arranged in the third plate segment, and the control circuit board is arranged in the second plate segment.

In some embodiments, the radiation intensity of the infrared emitter satisfies the formula:

wherein I is _e For the radiation intensity of the infrared emitter, d _sensor E is the distance between the first plate section and the third plate section _emin Is the sensitivity of the infrared receiver.

In some embodiments, the detection wire is a fiber filament.

The dumbbell pin according to the second aspect of the utility model comprises a dumbbell pin body and the broken pin detecting device according to any of the above embodiments, and the broken pin detecting device is mounted on the dumbbell pin.

In some embodiments, the dumbbell pin body comprises a connecting rod, a first dumbbell head and a second dumbbell head connected to two ends of the connecting rod, one end of the detecting wire is connected with the first dumbbell head, the other end of the detecting wire is connected with the second dumbbell head, and the length direction of the detecting wire is parallel to the axial direction of the connecting rod.

In some embodiments, the sensor is welded to at least one of the connecting rod, the first dumbbell head, and the second dumbbell head.

In some embodiments, the sensor is located on the connecting rod adjacent to an end of the first dumbbell head.

An embodiment of the hydraulic mount system according to the third aspect of the present utility model includes:

the scraper conveyor comprises a plurality of middle grooves which are connected in sequence;

a plurality of dumbbell pins according to any of the embodiments described above, wherein two adjacent middle grooves are connected by the dumbbell pin body, and wherein the plurality of dumbbell pins have different numbers;

the hydraulic supports are connected with the middle grooves in a one-to-one correspondence manner;

the support controllers are in one-to-one correspondence with the hydraulic supports, the support controllers are in wireless connection with the broken pin detection devices, the broken pin detection devices can transmit signals to the support controllers, and the support controllers can control the starting and stopping of the hydraulic supports corresponding to the dumbbell pins according to the signals.

In some embodiments, the bracket controller is wirelessly connected with the broken pin detection device through Zigbee technology.

Drawings

Fig. 1 is a schematic view of a broken pin detection device according to an embodiment of the present utility model.

Fig. 2 is a schematic diagram of a sensor of the broken pin detection device according to the embodiment of the present utility model.

Fig. 3 is a flowchart of the detection of the broken pin detection device according to the embodiment of the present utility model.

Reference numerals:

1. a dumbbell pin body; 11. a connecting rod; 12. a first dumbbell head; 13. a second dumbbell head; 2. a probe wire; 3. a sensor; 31. a first plate segment; 32. a second plate segment; 33. a third plate segment; 4. a middle groove.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

The broken pin detection device, the dumbbell pin and the hydraulic support system according to the embodiment of the utility model are described below with reference to the accompanying drawings.

As shown in fig. 1 and fig. 2, the broken pin detection device applied to a dumbbell pin in the embodiment of the utility model comprises a detection wire 2 and a sensor 3, wherein the detection wire 2 is connected to the dumbbell pin and extends along the axial direction of the dumbbell pin, the detection wire 2 is made of a material with poor toughness, when the dumbbell pin is subjected to fracture failure, the detection wire 2 can be broken along with the break, the sensor 3 is an infrared sensor 3, the sensor 3 is arranged on the dumbbell pin, and the sensor 3 detects the condition of the detection wire 2 based on the principle of infrared light detection, so that whether the dumbbell pin is broken or not is judged.

Specifically, the sensor 3 includes a housing, an infrared emitter (not shown), an infrared receiver (not shown), and a control circuit board (not shown), where the infrared emitter, the infrared receiver, and the control circuit board are all disposed in the housing, and the infrared emitter and the infrared receiver are all connected to the control circuit board, and the control circuit board has a wireless transmission module, and can transmit signals to the outside, where the infrared emitter and the infrared receiver are disposed opposite to each other, and at least a portion of the detection wire 2 is disposed between the infrared emitter and the infrared receiver.

The infrared transmitter uses a PNP triode to realize the control of the transmitting tube of the singlechip, the base electrode of the PNP triode is connected with a GPIO port of the singlechip through a resistor, and the transmitting tube is connected with the transmitting electrode of the PNP triode through a current limiting resistor. When the GPIO of the MCU outputs high level, the PNP triode is in a cut-off state and the infrared transmitting tube does not work; when the GPIO outputs a low level, the PNP triode is conducted to operate the transmitting tube, infrared rays invisible to naked eyes are emitted, the infrared rays are received by the infrared receiver, the MCU converts the infrared rays into electric pulse signals, whether the detecting wire 2 is normal or broken is judged according to the existence of the pulse signals, and therefore dumbbell pin fault diagnosis is made.

The sensor 3 detects the motion state of the detection wire 2 by utilizing the infrared photoelectric principle, when the detection wire 2 is normal, the detection wire 2 positioned on the dumbbell pin has tiny shake due to the motion of the dumbbell pin, the shake can continuously shield the emission and the reception of infrared light of the sensor 3, continuous infrared pulse is generated, the coordinator handshakes with the sensor 3 every 20s, whether the sensor 3 works well is confirmed, after the detection wire 2 is broken due to the breakage of the dumbbell pin, the continuous infrared pulse is reduced or eliminated, the sensor 3 can judge that the detection wire 2 is broken through detecting and judging the frequency of the infrared pulse, so that the breakage fault of the dumbbell pin is judged, and a fault signal is sent to the coordinator and the bracket controller, and an alarm is sent.

According to the broken pin detection device, the detection line 2 and the sensor 3 are arranged, and infrared light is used for detecting the detection line 2, so that the broken fault of the dumbbell pin is detected, the structure is simple, the detection precision is high, the detection efficiency is high, the working state of the dumbbell pin can be judged in time, and the dumbbell pin can be replaced in time.

In some embodiments, the housing includes a first plate segment 31, a second plate segment 32, and a third plate segment 33, the first plate segment 31, the second plate segment 32, and the third plate segment 33 are hollow plate-like structures, the infrared emitter is disposed in the first plate segment 31, the infrared receiver is disposed in the third plate segment 33, and through holes for infrared light to pass through are disposed on the first plate segment 31 and the second plate segment 32, and the control circuit board is disposed in the second plate segment 32.

One end of the second plate segment 32 is connected with the first plate segment 31 and forms an included angle with the first plate segment 31, the other end of the second plate segment 32 is connected with the third plate segment 33 and forms an included angle with the third plate segment 33, the first plate segment 31 and the third plate segment 33 are located on the same side of the second plate segment 32, as shown in fig. 2, the included angle between the first plate segment 31 and the second plate segment 32 is 90 degrees, the included angle between the second plate segment 32 and the third plate segment 33 is 90 degrees, and the first plate segment 31 and the second plate segment 32 are arranged on the same side, so that the shell forms a U-shaped structure, and the first plate segment 31 and the second plate segment 32 are oppositely arranged.

In some embodiments, the radiation intensity of the infrared emitter satisfies the formula:

wherein d _sensor The distance between the first plate segment 31 and the third plate segment 32 is expressed as m, I _e The radiation intensity of the infrared emitter is expressed as mw/sr, E _emin Is the sensitivity of the infrared receiver, and is expressed in mw/m ² 。

The optical system of the infrared emitter and the receiver generally adopts an optical lens, which plays a role of focusing the infrared light beam into a thinner parallel light beam so that the energy of the infrared light can be transmitted in a concentrated manner, and the radiation intensity of the infrared emitter is determined according to the formula, so that the accuracy of the sensor 3 can be ensured.

In some embodiments, the detection wire 2 is a fiber, which has poor toughness and is easy to break after being stressed, and is very suitable as a material of the detection wire 2.

The dumbbell pin according to the second aspect of the utility model comprises a dumbbell pin body 1 and the broken pin detection device according to any of the above embodiments, wherein the broken pin detection device is mounted on the dumbbell pin to detect the breaking condition of the dumbbell pin.

Technical advantages of the dumbbell pin according to the second aspect of the utility model are the same as those of the broken pin detection device according to the above embodiment, and will not be described here again.

In some embodiments, the dumbbell pin body 1 includes a connecting rod 11, a first dumbbell head 12 and a second dumbbell head 13 connected at two ends of the connecting rod 11, one end of the detecting wire 2 is connected with the first dumbbell head 12, the other end of the detecting wire 2 is connected with the second dumbbell head 13, and the length direction of the detecting wire 2 is parallel to the axial direction of the connecting rod 11.

Alternatively, two ends of the detecting wire 2 may be bonded to the first dumbbell head 12 and the second dumbbell head 13, or hook structures may be disposed on the first dumbbell head 12 and the second dumbbell head 13, and the detecting wire 2 may be bound on the hook structures, so long as the detecting wire 2 may be fixed.

In some embodiments, the sensor 3 is welded to at least one of the connecting rod 11, the first dumbbell head 12, and the second dumbbell head 13.

Specifically, the casing of the sensor 3 is welded to at least one of the connecting rod 11, the first dumbbell head 12 and the second dumbbell head 13, so that the sensor 3 is stably mounted on the dumbbell pin body 1, and in addition, the sensor 3 and the dumbbell pin body 1 can be in a threaded connection, a snap connection or an adhesive connection.

Further, the sensor 3 is located at one end of the connecting rod 11 adjacent to the first dumbbell head 12, the sensor 3 can be connected with the connecting rod 11 or the first dumbbell head 12, so that the sensor 3 is correspondingly arranged in the middle groove 4, the middle groove 4 and the hydraulic support are conveniently corresponding, and when the breakage of the dumbbell pin is detected, the hydraulic support can be timely controlled to stop.

The hydraulic support system of the embodiment of the third aspect of the utility model comprises a scraper conveyor, a dumbbell pin, a hydraulic support and a support controller, wherein the dumbbell pin is the dumbbell pin of any embodiment.

The scraper conveyor comprises a plurality of middle grooves 4 which are connected in sequence, wherein the dumbbell pins, the hydraulic supports and the support controllers are multiple, two adjacent middle grooves 4 are connected through the dumbbell pin body 1, a plurality of broken pin detection devices are provided with different numbers, a plurality of hydraulic supports are connected with the middle grooves 4 in a one-to-one correspondence manner, the support controllers are in wireless connection with the broken pin detection devices, the broken pin detection devices can transmit signals to the support controllers, after the dumbbell pins break down, the support controllers can determine the hydraulic supports corresponding to the broken dumbbell pins according to the signals, and accordingly start and stop of the hydraulic supports corresponding to the broken pin detection devices are controlled.

The middle groove 4 is provided with a groove or a hole for accommodating the dumbbell pin, and a space for accommodating the broken pin detection device should be reserved during the groove or the hole opening.

In some embodiments, the bracket controller is wirelessly connected with the broken pin detection device through Zigbee technology, so that the fracture condition of the dumbbell pin and the position of the broken dumbbell pin can be accurately determined.

The broken pin fault detection flow of the dumbbell pin is shown in fig. 3, the dumbbell pin corresponds to the support controller one by one, the broken pin detection device corresponds to the dumbbell pin one by one, the control circuit board realizes the communication between the broken pin detection device and the support controller, and the electric signal of the signal processing module of the broken pin detection device is transmitted to the support controller in a wireless transmission mode; the bracket controller controls the action of the middle grooves 4 on two adjacent sides of the scraper conveyor; the monitoring center is electrically connected with the bracket controllers, stores and processes the signals of each sensor 3, judges whether the dumbbell pin breaks or not, can determine the position of the broken pin according to the number, and simultaneously controls the corresponding bracket controllers to stop and check the corresponding hydraulic bracket.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the utility model.

Claims (9)

1. Be applied to broken round pin detection device of dumbbell round pin, characterized in that includes:

a detection wire adapted to be connected to the dumbbell pin and extend in an axial direction of the dumbbell pin,

the sensor is installed on the dumbbell pin and comprises a shell, an infrared emitter, an infrared receiver and a control circuit board, wherein the infrared emitter, the infrared receiver and the control circuit board are arranged in the shell, the infrared emitter and the infrared receiver are oppositely arranged, and at least part of the detection wire is located between the infrared emitter and the infrared receiver.

2. The broken pin detection device according to claim 1, wherein the housing comprises a first plate section, a second plate section and a third plate section, one end of the second plate section is connected with the first plate section and forms an included angle therebetween, the other end of the second plate section is connected with the third plate section and forms an included angle therebetween, the first plate section and the third plate section are located on the same side of the second plate section, the infrared emitter is arranged in the first plate section, the infrared receiver is arranged in the third plate section, and the control circuit board is arranged in the second plate section.

3. The break pin detection device of claim 1, wherein the detection wire is a fiber filament.

4. A dumbbell pin comprising a dumbbell pin body and the break pin detection device according to any one of claims 1 to 3, the break pin detection device being mounted on the dumbbell pin.

5. The dumbbell pin of claim 4, wherein the dumbbell pin body comprises a connecting rod, a first dumbbell head and a second dumbbell head connected to two ends of the connecting rod, one end of the detecting wire is connected with the first dumbbell head, the other end of the detecting wire is connected with the second dumbbell head, and the length direction of the detecting wire is parallel to the axial direction of the connecting rod.

6. The dumbbell pin of claim 5, wherein the sensor is welded to at least one of the connecting rod, the first dumbbell head, and the second dumbbell head.

7. The dumbbell pin of claim 6, wherein the sensor is located on the connecting rod adjacent an end of the first dumbbell head.

8. A hydraulic mount system, comprising:

the scraper conveyor comprises a plurality of middle grooves which are connected in sequence;

a plurality of dumbbell pins according to any one of claims 4 to 7, adjacent two of the middle grooves being connected by the dumbbell pin body, the plurality of dumbbell pins having different numbers;

the hydraulic supports are connected with the middle grooves in a one-to-one correspondence manner;

the support controllers are in one-to-one correspondence with the hydraulic supports, the support controllers are in wireless connection with the broken pin detection devices, the broken pin detection devices can transmit signals to the support controllers, and the support controllers can control the starting and stopping of the hydraulic supports corresponding to the dumbbell pins according to the signals.

9. The hydraulic mount system of claim 8, wherein the mount controller is wirelessly connected to the break pin detection device via Zigbee technology.