Novel conveyor for coal mine
By installing adjustment mechanisms and laser rangefinders on the conveyor support legs, the problems of equipment tilting and lack of monitoring were solved, enabling safe and stable operation of the conveyor and real-time monitoring of production status, thereby improving coal mine production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI GUANQUN BEIDONG IND CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-12
AI Technical Summary
Existing electric belt conveyors are prone to tilting and sinking in coal mine production due to soft ground, and lack conveying monitoring functions, which affects safe and stable operation and production efficiency.
An adjustment mechanism and a laser rangefinder are installed at the support feet of the conveyor. The height of the support feet is adjusted by an electric push rod, and the conveying data is monitored in real time by the laser rangefinder, so as to achieve stable operation of the equipment and remote status monitoring.
It enables safe and stable operation of the conveyor and real-time monitoring of its production status, thereby improving production efficiency and equipment reliability.
Smart Images
Figure CN224225891U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of conveyor technology, and in particular to a new type of conveyor for coal mines. Background Technology
[0002] Electric belt conveyors are a widely used type of conveying equipment in coal mines and other production areas. Their main function is to transfer mined coal from one workstation to another (for example, transferring coal excavated in the mine to the mine entrance). Their core components include a flexible ring conveyor belt, a drive unit (composed of an electric motor, reducer, and drive drum to provide power to the conveyor), a support system (idlers, arranged in a distributed manner to reduce running resistance and support the conveyor belt), a drive drum (used to transmit power), a redirecting drum (used to adjust the conveying direction), and a tensioning device.
[0003] Although the existing electric belt conveyors used for coal conveying meet production needs to a certain extent, there are still some technical shortcomings that need to be improved due to structural limitations. (1): The ground at the coal mine production site is generally composed of soil. Affected by factors such as equipment weight and soft ground, the conveyor may have a chance of tilting. Currently, stones are usually placed between the support feet and the ground. The above method solves the tilting problem to a certain extent, but due to the large load and vibration when the equipment is working, there is a chance of sinking in the corresponding position after a period of time, which has an adverse effect on the safe and stable operation of the conveyor. (2): It does not have a conveying monitoring function. When relevant management personnel are not on site, they cannot know the production situation (such as the conveyor malfunctioning and stopping work, or no coal being conveyed), which will more or less have an adverse effect on normal production and work efficiency. Based on the above factors, it is still very necessary to provide a conveyor that can adjust the level of the equipment as much as possible and monitor the amount of coal conveyed. Utility Model Content
[0004] To overcome the shortcomings of existing electric belt conveyors, which are limited by their structure and as described in the background art, this utility model provides a new type of coal mine conveyor. Based on the conveyor body and the combined action of related structures, when one or more support legs tilt due to various reasons, workers can easily adjust their heights to ensure safe and stable operation of the equipment. Furthermore, it can monitor the conveying data of coal blocks on the conveyor belt in real time, allowing management personnel to understand whether the equipment is in production and conveying mode without being on-site, and to promptly perform on-site maintenance when necessary, thus ensuring production efficiency.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A new type of coal mine conveyor includes an electric belt conveyor body, a power module, a power switch, a laser rangefinder, a voltmeter, and an adjustment mechanism. Multiple adjustment mechanisms are provided, matching the number of support legs on the electric belt conveyor. Each support leg is equipped with one adjustment mechanism. Each adjustment mechanism includes an electric push rod and a movable leg. The support leg is hollow. The electric push rod of each adjustment mechanism is vertically distributed and installed inside one of the support legs. The upper end of the movable leg and the lower end of the movable column of the electric push rod are fixedly installed together, with the movable leg located outside the lower end of the support leg. A support frame is fixedly installed on the upper part of the frame of the electric belt conveyor body. The laser rangefinder is vertically distributed and fixedly installed on the lower side of the upper part of the support frame. The power module and power switch are installed in an electrical control box, and the voltmeter is installed in the control room. The power output terminal of the laser rangefinder and the power input terminals of the LCD voltmeter are electrically connected. The power output terminals of the multiple power switches and the positive and negative / positive power input terminals of the electric push rods of the multiple adjustment mechanisms are electrically connected.
[0007] Furthermore, the electric belt conveyor body has multiple shaft holes distributed at the lower ends of its multiple support feet. The movable column of the electric push rod is located in the middle shaft hole, and guide rods are fixedly installed on both sides of the upper end of the movable foot. The guide rods are slidably sleeved in the shaft holes on the lower side of the support foot.
[0008] Furthermore, the outer diameter of the movable column and guide rod is smaller than the inner diameter of the shaft hole.
[0009] Furthermore, the probe of the laser rangefinder is located at the bottom and aligned with the conveyor belt of the electric belt conveyor body.
[0010] Furthermore, a storage battery is connected in parallel to the two poles of the power output terminal of the power module.
[0011] Compared with the prior art, the advantages of this utility model are as follows: When used in conjunction with an electric belt conveyor, if one or more support legs tilt due to various reasons under the combined action of related structures, relevant personnel can promptly adjust the ground clearance of the corresponding support leg through the power switch and adjustment mechanism, thus ensuring the safe and stable operation of the equipment as much as possible. The laser rangefinder, together with the voltmeter, can monitor the conveying data of coal blocks on the conveyor belt in real time. Staff can understand whether the equipment is in production and conveying state without going to the site, and can promptly go to the site to maintain the faulty equipment (or restore power after a power outage) when necessary, thus ensuring production efficiency. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0013] Figure 1 This is a schematic diagram of the structure of this utility model.
[0014] Figure 2 This is a partial structural schematic diagram of the present invention.
[0015] Figure 3 This is the circuit diagram of this utility model. Detailed Implementation
[0016] Figure 1 , 2 As shown in Figure 3, the new type of coal mine conveyor includes an electric belt conveyor body 1, a power module T1, a power switch SN, a laser rangefinder T2, and an LCD voltage display V, and also has an adjustment mechanism; there are multiple sets of the adjustment mechanism, and the number is the same as the number of support legs 101 of the electric belt conveyor, with each support leg 101 equipped with a set of adjustment mechanisms; each set of adjustment mechanisms includes an electric push rod MN and a movable foot 21, the support leg 101 is a hollow structure, and the electric push rod MN of each set of adjustment mechanisms is vertically distributed and installed on one of the cylinders. Inside the support leg 101, the upper end of the movable leg 21 and the lower end of the movable column of the electric push rod MN are fixedly installed together, and the movable leg 21 is located outside the lower end of the support leg; a "Π"-shaped support frame 102 is fixedly installed in the middle of the upper end of the frame of the electric belt conveyor body, and the laser rangefinder T2 is vertically distributed and fixedly installed on the lower side of the middle of the upper end of the support frame 102; the power module T1 and the power switch SN are installed on the circuit board inside the electrical control box, and the LCD voltage display meter V is installed in the component box 3 in the duty room (the component box 4 can be fixedly installed on the wall).
[0017] Figure 1 , 2As shown in Figure 3, three shaft holes 1011 are laterally distributed at the middle of the lower end of the multiple support feet of the electric belt conveyor body. The movable column of the electric push rod is movably located in the middle shaft hole 1011. A guide rod 211 (for guiding the movable foot up and down) is fixedly installed on both sides of the upper end of the movable foot 21. The two guide rods 211 are slidably sleeved in the left and right shaft holes 1011 at the lower end of the support feet, respectively. The outer diameter of the movable column and the guide rod is smaller than the inner diameter of the shaft hole. The probe of the laser rangefinder T2 is located at the lower part and aligned with the conveyor belt 103 of the electric belt conveyor body. The power input terminals 1 and 2 of power module T1 are connected to the 220V AC power supply via wires. The power output terminals 3 and 4 of power module T1 are connected to the power input terminals 1 and 2 of multiple power switches SN and the power input terminals 1 and 2 of laser rangefinder T2 via wires. The power output terminals 3 and 2 of laser rangefinder T2 are connected to the power input terminals of LCD voltmeter V via wires. The power output terminals 3, 4, 5, and 6 of multiple power switches SN are connected to the positive and negative, and negative and positive power input terminals of the electric push rods MN of multiple adjustment mechanisms via wires. Each power switch handle is marked with a number representing a corresponding support foot on the front outer end of the control box. All power switch handles are located outside the opening at the front of the control box, and the voltmeter display interface is located outside the opening at the front of the component box. A battery G1 is connected in parallel to the two terminals 3 and 4 of the power output terminal of power module T1.
[0018] Figure 1 , 2 As shown in Figures 1 and 3, this new invention is based on the electric belt conveyor body 1, and its main function is to transfer mined coal blocks from one workstation to another workstation via the moving annular conveyor belt 103 (for example, transferring coal blocks excavated in the mine to the mine entrance, etc.). The above are existing mature technologies, so this application will not elaborate on the structure and working principle of the electric belt conveyor. After the 220V power supply enters the power input terminal of the power module T1, the stable DC 24V power output from pins 3 and 4 of the power module T1 enters the power input terminals of multiple power switches SN, laser rangefinder T2, etc. (and also enters the power input terminal of the battery G1, the battery stores power to prevent related circuits from not working after a power outage). When one or more support legs of the electric belt conveyor body are initially installed or after a period of use and sink and need to be adjusted in height, the operator moves the handle of the corresponding power switch SN to the left or right. This connects pins 1 and 2 and pins 3 and 4 or pins 5 and 6 of the corresponding power switch. This energizes the positive and negative or negative and positive power input terminals of the corresponding set of electric push rods MN. The movable column of the corresponding set of electric push rods MN will push the movable leg up or down (the height of the corresponding support leg will decrease or increase). After adjustment, the corresponding power switch is turned off.
[0019] Figure 1 , 2As shown in Figure 3, after the laser rangefinder T2 is powered on, the laser beam emitted by its probe head detects the coal block on the conveyor belt. Then, pin 3 of the laser rangefinder will output a voltage signal. When the height of the conveyed coal block is high, the voltage signal output from pins 3 and 2 of the laser rangefinder T2 to the voltmeter V is relatively high. Conversely, the voltage signal output from pins 3 and 2 of the laser rangefinder T2 to the voltmeter V is relatively high. The staff in the duty room can intuitively understand the amount of coal block being conveyed on the conveyor belt by observing the voltage display value of the voltmeter. Specifically, when the voltage number is constant, it means that the electric conveyor body is malfunctioning or has lost power. A small number means that the amount of coal being conveyed is relatively small, and vice versa.
[0020] Figure 1 , 2 As shown in Figure 3, through the above-mentioned application of this new technology, when one or more support legs tilt due to various reasons under the combined action of related structures, relevant personnel can promptly adjust the ground clearance of the corresponding support leg through the power switch and adjustment mechanism, thereby ensuring the safe and stable operation of the equipment as much as possible. The laser rangefinder, together with the voltmeter, can monitor the coal conveying data on the conveyor belt in real time, allowing staff to know whether the equipment is in production and conveying state without going to the site. If necessary, staff can promptly go to the site to maintain the faulty equipment (or to shut down or restore power), ensuring production efficiency. Figure 3 As shown, power module A1 is a finished product of AC 220V to DC 24V power module; electric push rod MN (200W) is a finished product of reciprocating electric telescopic rod (also replaced by a hydraulic cylinder); laser ranging module T2 is a finished product of laser ranging sensor model GJD-01, which has two power input terminals and one signal output terminal. When the probe detects an object, the signal output terminal will output a dynamically changing analog voltage signal of 0-10V. The farther the distance, the higher the output voltage signal, and vice versa; battery G1 is model 24V / 10Ah; voltmeter V is a liquid crystal voltage display meter with a range of DC 24V.
[0021] 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.
[0022] 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 new type of coal mine conveyor, comprising an electric belt conveyor body, a power module, a power switch, a laser rangefinder, and a voltmeter, characterized in that, It also has an adjustment mechanism; there are multiple sets of the adjustment mechanism, and the number of sets is the same as the number of support legs of the electric belt conveyor. Each support leg is equipped with an adjustment mechanism. Each adjustment mechanism includes an electric push rod and a movable leg. The support leg is a hollow structure. The electric push rod of each adjustment mechanism is vertically distributed and installed in one of the support legs. The upper end of the movable leg and the lower end of the movable column of the electric push rod are fixedly installed together, and the movable leg is located outside the lower end of the support leg. A support frame is fixedly installed on the upper end of the frame of the electric belt conveyor body. The laser rangefinder is vertically distributed and fixedly installed on the lower side of the upper part of the support frame. The power module and power switch are installed in the electrical control box, and the voltmeter is installed in the duty room. The power output terminal of the laser rangefinder and the power input terminals of the LCD voltmeter are electrically connected respectively. The power output terminals of the multiple power switches and the positive and negative and negative and positive power input terminals of the electric push rods of the multiple adjustment mechanisms are electrically connected respectively.
2. The novel coal mine conveyor according to claim 1, characterized in that, The electric belt conveyor body has multiple shaft holes distributed at the lower end of its multiple support legs. The movable column of the electric push rod is located in the middle shaft hole. Guide rods are fixedly installed on both sides of the upper end of the movable leg, and the guide rods slide in the shaft holes on the side of the lower end of the support leg.
3. The novel coal mine conveyor according to claim 1, characterized in that, The outer diameter of the movable column and guide rod is smaller than the inner diameter of the shaft hole.
4. The novel coal mine conveyor according to claim 1, characterized in that, The laser rangefinder's probe is located at the bottom and aligned with the conveyor belt of the electric belt conveyor body.
5. The novel coal mine conveyor according to claim 1, characterized in that, A battery is connected in parallel to the two poles of the power output terminal of the power module.