Novel mining self-moving tail

Abstract

A novel mining self-moving tail belongs to the technical field of conveying equipment and comprises a mining self-moving tail body, a wireless transmitting module, a wireless receiving circuit, a positioning mechanism and a detection circuit. The upper ends of the electric push rods of the positioning mechanisms are fixedly mounted at the front and rear side ends of a rack of the tail body respectively; the detection circuit is provided with an alternating-current generator in a matched mode, the generator and one supporting conveying roller of the machine tail body are installed together, and the detection circuit and the wireless transmitting circuit module are installed in an electric control box of the machine tail body and electrically connected. Based on the self-moving machine tail body, after equipment is in place, a worker can be controlled by a power switch and can be inserted into the soil ground through insertion rods of multiple sets of positioning mechanisms, the whole equipment can be well stabilized, the probability of overall displacement of the equipment is reduced, and under the action of a detection circuit, the equipment can be accurately positioned. When the equipment stops running, workers not on site can be prompted, the workers can maintain the equipment in time, and the production efficiency is guaranteed as much as possible.

Description

Technical Field

[0001] This utility model relates to the field of conveyor technology, and in particular to a new type of self-propelled tail conveyor for mining. Background Technology

[0002] Self-propelled tail section (abbreviated as self-propelled tail section) is a key connecting device in fully mechanized coal mining and tunneling faces, used between belt conveyors and transfer conveyors. It features self-moving capability, adjustment and correction functions, and is primarily used for the rapid advancement needs of high-yield and high-efficiency working faces. Its main structure includes a main frame, hydraulic system, and expansion modules. It features self-moving capability (driven by the hydraulic system, it can follow the tunneling machine without frequent manual disassembly and assembly, significantly shortening preparation time), adjustment functions (supporting belt misalignment correction, overall height adjustment, and transfer conveyor direction calibration to ensure conveying stability), and efficient connection (serving as an intermediate device between the transfer conveyor and belt conveyor, ensuring continuous material transfer in the tunneling face). The self-propelled tail section also has an electrically driven belt conveyor at the upper part of the vehicle body. After reaching its destination, the electrically driven belt conveyor transfers materials from one workstation to another (the conveyor belt has multiple supporting conveyor rollers at both the upper and lower ends). In actual operation, with the help of hydraulic cylinders and using the transfer machine or base plate as the fulcrum, the lifting, translation and forward movement are achieved through the principle of sliding friction. The operation process includes steps such as lifting the frame, pushing the cylinder forward, and resetting the track. A single machine movement only takes 30-40 seconds, which greatly improves work efficiency.

[0003] With the advancement of industrial technology, the functions of self-moving tail sections are becoming increasingly diverse. For example, the authorized patent in my country, patent number "201420212257.9" entitled "Permanent Magnet Driven Self-Moving Tail Section," describes it as follows: "This utility model has a reasonable design and adopts a permanent magnet driven electric drum self-moving tail section device. The permanent magnet electric drum uses a permanent magnet motor, replacing the traditional simple tail section and ordinary self-moving tail sections. This tail section is equipped with a corresponding frequency converter for operation. The four-quadrant frequency converter control makes the starting and braking of the permanent magnet electric drum smoother and more seamless. The permanent magnet driven electric drum can realize the driving and braking of the belt by the tail section. During belt conveyor startup, there will be no belt pulling, shaking, or other deficiencies. During belt conveyor braking, there will be no problems such as coal accumulation at the head, increased belt elongation, or increased belt sag. It is especially suitable for use in downconveying face conveyor belts, solving the operational difficulties of downconveying conveyor belts." As can be seen from the above, although the comparative patent achieves the technical effects described in its invention, it still has the following technical problems due to structural limitations. Specifically, after the equipment is moved into place, there is no fixing mechanism. Therefore, when the equipment shifts due to various reasons (such as soft ground or high-load vibration), it will adversely affect the normal operation of the equipment. Furthermore, if personnel are not on-site, and the equipment stops working due to motor damage or conveyor belt breakage, personnel cannot handle the situation immediately, which will adversely affect production efficiency. Utility Model Content

[0004] To overcome the shortcomings of existing self-propelled tailing machines, which are limited by their structure and have the drawbacks described in the background art, this utility model provides a new type of mining self-propelled tailing machine based on the self-propelled tailing machine body. In application, with the joint action of related structures, after the equipment is in place, the operator can control the fixing rod to be inserted into the soil, which has a good stabilizing effect on the equipment and reduces the probability of overall equipment displacement. Moreover, when the equipment stops running, it can promptly notify the operators who are not on site, so that the operators can maintain the equipment in a timely manner, thus maximizing production efficiency.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A novel self-propelled tail section for mining includes a tail section body, a wireless transmitting module, and a wireless receiving circuit. It also features a positioning mechanism and a detection circuit. Multiple positioning mechanisms are included, each consisting of an electric push rod and an insert rod. The upper end of the insert rod is fixedly mounted on the lower end of the electric push rod. The upper ends of the electric push rods of the multiple positioning mechanisms are respectively fixedly mounted on the front and rear sides of the tail section frame. The detection circuit is equipped with an AC generator. One of the support conveyor rollers of the tail section body has a hollow structure. Bearings are fixedly mounted on both sides of the support conveyor roller. Hollow shafts are laterally fixedly mounted inside the inner rings of the two bearings. The generator's magnet is fixedly mounted on the inner side of the support conveyor roller, and the generator's stator coil is fixedly mounted on the outer end of one side of the shaft. The two ends of the shaft of one of the support conveyor rollers are fixedly mounted on the mounting position of one of the support conveyor rollers on the frame. The detection circuit and wireless transmitting circuit module are installed in the electrical control box of the tail section body. The signal output terminal of the generator and the signal input terminal of the detection circuit are electrically connected. The power input terminal of the wireless transmitting module and the power output terminal of the detection circuit are electrically connected.

[0007] Furthermore, the stator coils are located inside the magnet and spaced apart.

[0008] Furthermore, the upper end of the supporting conveyor roller and the lower side of the upper end of the conveyor belt of the tail body are in rotatable contact.

[0009] Furthermore, the lower end of the insertion rod has a pointed conical structure. When the movable column of the electric push rod is at the lower dead center, the height of the lower end of the insertion rod is lower than the height of the lower end of the tail body. When the movable column of the electric push rod is at the upper dead center, the height of the lower end of the insertion rod is higher than the height of the lower end of the tail body.

[0010] Furthermore, the detection circuit includes a bridge rectifier, a capacitor, and a relay that are electrically connected. The positive power output terminal of the bridge rectifier is connected to the positive terminal of the capacitor and the positive terminal of the relay, and the negative power output terminal of the bridge rectifier is connected to the negative terminal of the capacitor and the negative power input terminal of the relay.

[0011] Furthermore, the electric actuator can also be replaced by a hydraulic cylinder.

[0012] Furthermore, the two contacts under one of the transmit buttons of the wireless transmission module are shorted together by a wire.

[0013] Furthermore, the wireless receiving circuit includes a battery and an alarm, which are electrically connected and mounted on a circuit board inside the component box. The two poles of the battery are electrically connected to the power input terminal of the wireless receiving circuit module, and the power output terminal of the wireless receiving circuit module is connected to the power input terminal of the alarm.

[0014] Compared with the prior art, the advantages of this utility model are: This new model is based on the self-moving tail body and has all the other functions of a common self-moving tail body; in application, under the joint action of related structures, after the equipment is in place, the staff can control it by the power switch and insert the rods of multiple positioning mechanisms into the soil, which has a good stabilizing effect on the overall equipment and reduces the probability of overall equipment displacement. Moreover, under the action of the detection circuit, the equipment can prompt the staff who are not on site when it stops running, so that the staff can maintain the equipment in time and ensure production efficiency as much as possible. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 , 3 This is a partial structural schematic diagram of the present invention.

[0018] Figure 4 This is the circuit diagram of this utility model. Detailed Implementation

[0019] Figure 1 , 2 As shown in Figures 3 and 4, the new type of self-propelled mine tailing machine includes a self-propelled mine tailing machine body 1, a power module T1, a power switch K, a wireless transmission module T2, and a wireless receiving circuit 2. It also has a positioning mechanism and a detection circuit 3. The positioning mechanism has four sets, each including an electric push rod MN and an insertion rod 4. The upper end of the insertion rod 4 is fixedly installed at the lower end of the movable column of the electric push rod MN. The electric push rods MN of the four positioning mechanisms are vertically distributed and fixedly installed on the left and right sides of the front and rear ends of the frame 101 of the tailing machine body. The detection circuit 3 is equipped with a small AC generator M. One of the supporting conveyor rollers 102 of the tailing machine body has a hollow structure. A bearing 1021 is fixedly installed in the middle of each of the two ends of the supporting conveyor roller 102, and two bearings 102... A hollow shaft 1022 is fixedly installed horizontally inside the inner ring, with the left and right sides of the shaft 1022 located on the outer sides of the supporting conveyor roller 102. The two semi-annular permanent magnets 32 of the generator M are fixedly installed at the upper and lower ends of the inner left side of the supporting conveyor roller 102. The stator coil 31 of the generator M is fixedly installed on the outer left side of the shaft 1022. The guide connected to the stator coil 31 enters the shaft 1022 through the opening at the upper end of the shaft 1022 at the inner left position of the supporting conveyor roller, and then leads out from the left outer end of the shaft 1022. The lower parts of the two ends of the shaft 1022 of one of the supporting conveyor rollers are fixedly installed on the left and right sides of the installation position of one of the supporting conveyor rollers on the frame. The power module T1, power switch K, and detection circuit 3 are installed in the electrical control box 5 of the tail body.

[0020] Figure 1 , 2 As shown in Figures 3 and 4, the stator coil 31 is located inside the magnet 32 ​​and spaced a certain distance (3 mm). The upper end of the support conveyor roller 102 and the lower side of the upper end of the conveyor belt 103 of the tail body are in rotatable contact. The lower end of the insertion rod 4 has a pointed conical structure. When the movable column of the electric push rod MN is at the lower stop point, the height of the lower end of the insertion rod MN is lower than the height of the lower end of the tail body 1. When the movable column of the electric push rod MN is at the upper stop point, the height of the lower end of the insertion rod 4 is higher than the height of the lower end of the tail body 1. The detection circuit includes a bridge rectifier T, a capacitor C, and a relay K connected by circuit board wiring. The positive power output terminal 3 of the bridge rectifier T is connected to the positive terminal of the capacitor C and the positive terminal of the relay J. The negative power output terminal 4 of the bridge rectifier T is connected to the negative terminal of the capacitor C and the negative power input terminal of the relay J. The electric push rod MN can also be replaced by a hydraulic cylinder. The two contacts under the first transmit button D1 of the wireless transmitter module T2 are shorted together by a wire (equivalent to a person pressing the transmit button D1). The wireless receiving circuit includes an electrically connected battery G1, charging socket CZ, power switch S1, alarm B, and wireless receiving circuit module T3. The battery G1, charging socket CZ, power switch S1, alarm B, and wireless receiving circuit module T3 are installed in component box 6, which is carried by the personnel or placed in the duty room. The two terminals of battery G1 and the two ends of charging socket CZ are connected by wires, and then connected in series with power switch S1 and electrically to the power input terminals of wireless receiving circuit module T3. The power output terminals 3 and 2 of wireless receiving circuit module T3 are connected to the power input terminals of alarm B. The power input terminals 1 and 2 of the power module T1 are connected to the two poles of the 220V AC power supply via wires. The power output terminals 3 and 4 of the power module T1 are connected to the power input terminals 1 and 2 of the power switch K, the power input terminal of the detection circuit, the control power input terminal of the relay J, and the negative power input terminal of the relay K via wires. The two ends of the stator coil of the generator M are connected to the signal input terminal of the detection circuit, the bridge rectifier T, and its terminals 1 and 2 via wires. The power output terminals 3, 4, 5, and 6 of the power switch K are connected to the positive and negative and negative and positive power input terminals of the electric push rods MN of the four sets of positioning mechanisms via wires. The power input terminals 1 and 2 of the wireless transmission module T2 are connected to the normally closed contact terminal and the negative power input terminal of the relay J, the power output terminal of the detection circuit, via wires.

[0021] Figure 1 , 2As shown in Figures 3 and 4, this new invention, based on the self-moving tail unit 1, possesses all the other functions of a conventional self-moving tail unit. During operation, it utilizes a hydraulic cylinder, with the transfer machine or base plate as a fulcrum, and achieves lifting, translation, and forward movement through the principle of sliding friction. The operation process includes steps such as frame lifting, push-cylinder advancement, and track reset. A single relocation takes only 30-40 seconds, greatly improving work efficiency. Self-moving tail units are a mature existing technology, so this application will not elaborate on their working principle and structure. Furthermore, this application does not protect the technical solution of the self-moving tail unit itself. What this application protects is the ability of the self-moving tail unit 1 to effectively fix itself in place to prevent displacement, and to alert relevant management personnel to maintenance points in case of malfunction. After the AC 220V power supply enters the power input terminal of the power module T1, pins 3 and 4 of the power module T1 output a stable DC 12V power supply, which enters the power input terminal of the power switch and detection circuit. When the self-propelled tail unit 1 arrives at the work area and needs to be fixed, or when it needs to leave the site and the insertion rod needs to be above the ground, the operator moves the handle of the power switch K to the left or right. This connects pins 1 and 2 and pins 3 and 4 or pins 5 and 6 of the power switch K. After the positive and negative power input terminals of the electric push rods MN of the four positioning mechanisms are energized, they push the insertion rod 4 to insert it into the ground, which stabilizes the equipment (the power switch is turned off after it is in place), reducing the chance of overall equipment displacement. Alternatively, after the positive and negative power input terminals of the electric push rods MN of the four positioning mechanisms are energized, they pull the insertion rod 4 out from below the ground and place it above the ground (the power switch is turned off after it is in place), facilitating overall equipment displacement.

[0022] Figure 1 , 2As shown in Figures 3 and 4, when the self-moving tail body 1 is working normally, its conveyor belt will drive all the supporting conveyor rollers to rotate. After one of the supporting conveyor rollers rotates, its roller will drive the magnet 31 of the generator to rotate. In this way, the stator coil of the generator M outputs about 12V AC power to the power input terminal of the bridge rectifier T. The bridge rectifier T converts the AC power into DC power and outputs it to the power input terminal of the relay J after filtering by the capacitor C. The relay J is energized and its control power input terminal and normally closed contact terminal are opened. In this way, the wireless transmission circuit module T2 will not be energized and will not transmit the first wireless closing signal. When the self-propelled tail unit 1 malfunctions, such as due to motor damage or conveyor belt breakage, the conveyor belt stops driving one of the supporting conveyor rollers, causing the generator magnet 31 to stop rotating. Consequently, the stator coil of generator M stops outputting AC power, and relay J loses power, ceasing to engage. Its control power input terminal and normally closed contact terminal close. Since the two contacts under the first transmit button D1 of the wireless transmitting circuit module T2 are shorted together, the wireless transmitting circuit module T2 is energized and transmits the first wireless closing signal. Within a 1000-meter range, the wireless receiving circuit module T3 receives this signal and its pin 3 outputs a high level, which enters the positive power input terminal of alarm B. Alarm B is then energized and emits a loud alarm sound to alert management personnel that the equipment has malfunctioned, allowing staff to maintain the equipment promptly and maximize production efficiency.

[0023] Figure 4 As shown, power module T1 is a finished product of AC 220V to DC 12V power module; electric actuator MN (200W) is a finished product of reciprocating electric telescopic rod (also replaced by a hydraulic cylinder); battery G1 is a 12V / 5Ah model; power switches K and S1 are toggle power switches (the operating handles are located outside the openings at the front of the control box and component box, respectively); generator M is a small 12V AC generator; bridge rectifier T is a DB107S model. The relay J is a DC12V model; the charging socket CZ is a coaxial power socket with its socket located outside the opening at the top of the component box (when the battery G1 is depleted, the external 12V power charger socket is inserted into the charging socket CZ socket to charge it); the alarm B is an active continuous audible alarm of model MF12V; the wireless transmitting circuit module T2 and the wireless receiving circuit module T3 are finished three-way wireless transceiver module components with an operating frequency of 433MHz, and their wireless transmission and reception distance is 1000 meters (similar to the principle of wireless remote control switches used in vehicles, etc.); the capacitor C is a 470μF / 25V model. All electronic components and circuit modules used in this application are existing mature products, therefore, their working principles will not be described in detail here.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0025] Furthermore, it should be understood that although this specification describes the embodiments, the embodiments do not necessarily contain only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A novel self-propelled tail grate for mining, comprising a self-propelled tail grate body, a wireless transmitting module, and a wireless receiving circuit, characterized in that, It also includes a positioning mechanism and a detection circuit. Multiple positioning mechanisms are included, each comprising an electric push rod and an insertion rod. The upper end of the insertion rod is fixedly installed at the lower end of the electric push rod. The upper ends of the electric push rods of the multiple positioning mechanisms are respectively fixedly installed at the front and rear sides of the frame of the tail section. The detection circuit is equipped with an AC generator. One of the support conveyor rollers of the tail section is a hollow structure. Bearings are fixedly installed on both sides of the support conveyor roller. Hollow shafts are horizontally fixedly installed inside the inner rings of the two bearings. The generator's magnet is fixedly installed inside the support conveyor roller, and the generator's stator coil is fixedly installed on one side of the outer end of the shaft. The two sides of the shaft of one of the support conveyor rollers are fixedly installed at the mounting position of one of the support conveyor rollers on the frame. The detection circuit and wireless transmission circuit module are installed in the electrical control box of the tail section. The signal output terminal of the generator and the signal input terminal of the detection circuit are electrically connected. The power input terminal of the wireless transmission module and the power output terminal of the detection circuit are electrically connected.

2. The novel self-propelled tail section for mining as described in claim 1, characterized in that, The stator coils are located inside the magnet and spaced apart.

3. The novel self-propelled tail section for mining as described in claim 1, characterized in that, The upper end of the support conveyor roller and the lower side of the upper end of the conveyor belt of the tail body make rotational contact.

4. The novel self-propelled tail section for mining as described in claim 1, characterized in that, The lower end of the insertion rod has a pointed conical structure. When the movable column of the electric push rod is at the lower dead center, the height of the lower end of the insertion rod is lower than the height of the lower end of the tail body. When the movable column of the electric push rod is at the upper dead center, the height of the lower end of the insertion rod is higher than the height of the lower end of the tail body.

5. The novel self-propelled tail section for mining as described in claim 1, characterized in that, The detection circuit includes a bridge rectifier, a capacitor, and a relay that are electrically connected. The positive power output terminal of the bridge rectifier is connected to the positive terminals of the capacitor and the relay, and the negative power output terminal of the bridge rectifier is connected to the negative terminals of the capacitor and the relay.

6. The novel self-propelled tail section for mining as described in claim 1, characterized in that, Electric linear actuators can also be replaced by hydraulic cylinders.

7. The novel self-propelled tail section for mining as described in claim 1, characterized in that, Two contacts under one of the transmit buttons on the wireless transmitter module are shorted together by a wire.

8. The novel self-propelled tail section for mining as described in claim 1, characterized in that, The wireless receiving circuit includes a battery and an alarm mounted on a circuit board inside a component box and electrically connected. The two terminals of the battery are electrically connected to the power input terminal of the wireless receiving circuit module, and the power output terminal of the wireless receiving circuit module is connected to the power input terminal of the alarm.

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