A chain length measuring machine for mining

Abstract

This utility model relates to the technical field of chain length measuring machines, and specifically discloses a mining chain length measuring machine, including a base, a drive sprocket rotatably mounted on the base, a motor fixedly mounted on the base, the output shaft of the motor fixedly connected to the drive sprocket, a rotary encoder for counting fixedly mounted on the base, the input shaft of the rotary encoder fixedly connected to the drive sprocket, and a control terminal fixedly mounted on the base. The motor and the rotary encoder are connected to the control terminal via wires. The motor is started via the control panel of the control terminal, which drives the drive sprocket to rotate counterclockwise. The rotation of the drive sprocket pulls the chain, and the number of rotations of the drive sprocket is recorded by the rotary encoder, thereby measuring the length of the chain. This achieves the effect of measuring long chains.

Description

Technical Field

[0001] This utility model relates to the field of chain length measuring machine technology, and in particular to a mining chain length measuring machine. Background Technology

[0002] In mining operations, accurate measurement of the length of mining chains is of great significance; in actual production, mining chain length measuring machines typically require the following technologies:

[0003] 1. Chain conveyor technology: Motors are often used to drive rollers or sprockets to move the chain smoothly, ensuring that the chain can pass through the measurement area smoothly during the measurement process;

[0004] 2. Length measurement technology: For example, using laser rangefinders, encoders and other equipment to accurately measure the distance the chain moves, thereby determining the chain length;

[0005] 3. Tensioning and guiding technology: By using tensioning wheels, guide wheels and other devices, the chain is kept at an appropriate tension and moves in a straight line during the conveying process to ensure measurement accuracy.

[0006] Existing Chinese patent: A mining chain length measuring machine, publication number: CN222258197U, includes: a support frame; a movable end fixing frame installed on the front section of the support frame; a hydraulic cylinder piston rod movable end block, a hydraulic cylinder, and a pin installed on the middle section of the support frame, the hydraulic cylinder piston rod movable end block being connected to the front of the hydraulic cylinder via the pin; and a pull seat fixing end installed on the rear section of the support frame. The chain whose length needs to be measured is installed between the hydraulic cylinder piston rod movable end block and the pull seat fixing end. The hydraulic cylinder drives the hydraulic cylinder piston rod movable end block to move, completing the stretching work of the chain to be measured, thereby measuring its length. Currently, various domestic manufacturers use different methods for length measurement, but there are still shortcomings. The mining chain length measuring machine of this application effectively improves the accuracy of measuring the paired length of chains by using a pull block that can be adjusted up and down between the base and the connecting rod.

[0007] However, during the implementation of the above technical solution, at least the following technical problems were found: The above-mentioned length measuring machine measures the length of the entire chain by straightening the chain from both ends and then measuring the length of the chain end-to-end. The length that can be measured depends on the length of the length measuring machine itself. In mining operations, the chains used are usually several meters to hundreds of meters long. Therefore, the above-mentioned length measuring machine is difficult to use to measure longer chains. Utility Model Content

[0008] To address the shortcomings of existing technologies, this utility model provides a mining chain length measuring machine, which solves the problem that the aforementioned length measuring machines, which straighten the chain from both ends and measure the length of the entire chain end-to-end, can only measure a length that depends on the length of the measuring machine itself. In mining operations, the chains used are typically several meters to hundreds of meters long, making it difficult for the aforementioned length measuring machines to measure longer chains.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A mining chain length measuring machine includes a base, a drive sprocket rotatably mounted on the base, a motor fixedly mounted on the base, the output shaft of the motor being fixedly connected to the drive sprocket, a rotary encoder for counting being fixedly mounted on the base, the input shaft of the rotary encoder being fixedly connected to the drive sprocket, a control terminal being fixedly mounted on the base, and the motor and the rotary encoder being connected to the control terminal via wires.

[0011] Preferably, a driven sprocket is rotatably mounted on the base.

[0012] Preferably, bearings are installed between the driven sprocket, the driving sprocket, and the base.

[0013] Preferred: A damping box is fixedly installed on the base.

[0014] Preferably, a damping core is rotatably mounted inside the damping box.

[0015] Preferably, the damping core and the driven sprocket are fixedly connected.

[0016] Preferably, the damping box has a first magnet uniformly and fixedly installed inside.

[0017] Preferably, a second magnet is uniformly fixedly mounted on the damping core.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In use, the chain is secured to the drive sprocket and driven sprocket. Then, the motor is started via the control panel on the control terminal. The motor will drive the drive sprocket to rotate counterclockwise. The rotation of the drive sprocket will pull the chain to move. At the same time, the drive sprocket will drive the input shaft of the rotary encoder to rotate. The data generated by the rotation of the rotary encoder input shaft will be transmitted to the STM32 microcontroller in the control terminal through wires to measure the length of the chain movement, thereby obtaining the chain length, which is displayed on the control terminal. By pulling the chain with the drive sprocket and recording the number of rotations of the drive sprocket by the rotary encoder, the length of the chain can be measured, achieving the effect of measuring long chains.

[0020] Second, while the driving sprocket pulls the chain to move, it also pulls the driven sprocket to rotate. The driven sprocket is fixedly connected to the damping core. The second magnets evenly installed on the damping core and the first magnets evenly installed in the damping box interact magnetically to generate magnetic damping. This causes the driven sprocket to rotate with a certain resistance, reducing the driving sprocket's pulling ability on the driven sprocket. As the driving sprocket rotates, it can flatten the chain links between the driving and driven sprockets, thus improving the measurement accuracy. Attached Figure Description

[0021] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0022] Figure 1 This is a structural diagram of the drive sprocket of this utility model;

[0023] Figure 2 This is a cross-sectional view of the base structure of this utility model;

[0024] Figure 3 This is a structural diagram of the driven sprocket of this utility model;

[0025] Figure 4 This is a cross-sectional structural diagram of the damping box of this utility model.

[0026] Legend: 1. Base; 2. Drive sprocket; 3. Motor; 4. Rotary encoder; 5. Control terminal; 6. Driven sprocket; 7. Bearing; 8. Damping box; 9. Damping core; 11. First magnet; 12. Second magnet. Detailed Implementation

[0027] This application provides a mining chain length measuring machine, effectively solving the problem of the aforementioned length measuring machines that straighten the chain from both ends and measure the entire chain length end-to-end. The measurable length depends on the length of the measuring machine itself. Chains used in mining operations are typically several meters to hundreds of meters long, making it difficult to measure longer chains. In this new machine, the chain is secured to the drive and driven sprockets. The motor is then started via the control panel on the control terminal. The motor drives the drive sprocket to rotate counter-clockwise, pulling the chain forward. Simultaneously, the drive sprocket rotates the input shaft of a rotary encoder. The data generated by the rotary encoder's input shaft is transmitted via wires to the STM32 microcontroller on the control terminal for measurement. The length of the chain is measured and displayed on the control terminal. The chain is moved by the drive sprocket, and the number of rotations of the drive sprocket is recorded by a rotary encoder to measure the chain length. This allows for the measurement of long chains. While the drive sprocket pulls the chain, the chain also pulls the driven sprocket to rotate. The driven sprocket is fixedly connected to the damping core. The second magnets evenly installed on the damping core and the first magnets evenly installed in the damping box interact magnetically to generate magnetic damping. This creates resistance to the rotation of the driven sprocket, reducing the traction of the drive sprocket on the driven sprocket. During the rotation of the drive sprocket, the chain links between the drive sprocket and the driven sprocket are leveled, thus improving measurement accuracy.

[0028] Example

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application embodiment effectively solves the problem of the aforementioned length measuring machine. It measures the length of the entire chain by straightening it from both ends and then measuring it end-to-end. The measurable length depends on the length of the length measuring machine itself. Chains used in mining operations are typically several meters to hundreds of meters long. Therefore, the aforementioned length measuring machine is difficult to use for measuring longer chains. The overall approach is as follows:

[0030] To address the problems existing in the prior art, this utility model provides a mining chain length measuring machine, including a base 1, a drive sprocket 2 rotatably mounted on the base 1, a motor 3 fixedly mounted on the base 1, the output shaft of the motor 3 being fixedly connected to the drive sprocket 2, and a rotary encoder 4 for counting fixedly mounted on the base 1.

[0031] The input shaft of the rotary encoder 4 is fixedly connected to the drive sprocket 2. The control terminal 5 is fixedly installed on the base 1. The motor 3 and the rotary encoder 4 are connected to the control terminal 5 through wires. The driven sprocket 6 is rotatably installed on the base 1. Bearings 7 are installed between the driven sprocket 6, the drive sprocket 2 and the base 1.

[0032] A damping box 8 is fixedly installed on the base 1. A damping core 9 is rotatably installed inside the damping box 8. The damping core 9 is fixedly connected to the driven sprocket 6. A first magnet 11 is evenly fixedly installed inside the damping box 8. A second magnet 12 is evenly fixedly installed on the damping core 9.

[0033] Base 1: As the main structure of the entire mining chain length measuring machine, it provides the installation foundation for other components, bears and supports the various parts of the length measuring machine, and ensures that the parts maintain a relatively stable positional relationship so that the entire equipment can operate normally;

[0034] Drive sprocket 2: Rotatably mounted on base 1, its main function is to directly contact the chain and pull the chain to move. Driven by motor 3, it rotates counterclockwise, driving the chain to move during the measurement process. At the same time, it drives the input shaft of rotary encoder 4 used for counting to rotate through its own rotation, providing the basic action for measuring chain length.

[0035] Motor 3: It is fixedly installed on the base 1 as a power source. Its output shaft is fixedly connected to the drive sprocket 2. After starting, it can drive the drive sprocket 2 to rotate, providing power for the movement of the chain. It is the core power source for the entire length measuring machine to realize the chain measurement action.

[0036] Rotary encoder 4: It is fixedly installed on the base 1 and used for counting. The input shaft is fixedly connected to the drive sprocket 2. It records the data generated by the rotation of the drive sprocket 2 and transmits the data to the STM32 microcontroller in the control terminal 5 through wires, thereby measuring the length of chain movement. It is a key counting component for realizing the chain length measurement function.

[0037] Control terminal 5: It is fixedly installed on the base 1 and connected to the motor 3 and rotary encoder 4 through wires. It has an STM32 microcontroller inside to receive and process data from the rotary encoder 4, calculate the length of the chain, and display the measurement results through its own control screen. It also has a control screen for starting the motor 3. It is the control and display center of the entire length measuring machine.

[0038] Driven sprocket 6: Rotatably mounted on base 1, in contact with the chain, and rotates via the chain when the drive sprocket 2 pulls the chain. It is fixedly connected to damping core 9, and together they generate magnetic damping, which hinders the traction of drive sprocket 2 to improve measurement accuracy.

[0039] Bearing 7: Installed between driven sprocket 6, driving sprocket 2 and base 1, to ensure that driven sprocket 6 and driving sprocket 2 can rotate smoothly on base 1, ensuring stable operation of the equipment;

[0040] Damping box 8: It is fixedly installed on the base 1, and the damping core 9 is rotatably installed inside it. At the same time, the first magnet 11 is uniformly fixedly installed inside it, and the magnetic damping is generated by the magnetic interaction with the second magnet 12 uniformly installed on the damping core 9.

[0041] Damping core 9: Rotatably installed inside the damping box 8 and fixedly connected to the driven sprocket 6. It rotates with the rotation of the driven sprocket 6. The second magnet 12, which is uniformly fixed on it, interacts with the first magnet 11, which is uniformly installed inside the damping box 8, to generate magnetic damping, reduce the traction force of the driving sprocket 2 on the driven sprocket 6, and flatten the chain links during the measurement process, thereby improving the measurement accuracy.

[0042] First magnet 11: It is uniformly fixed inside the damping box 8 and interacts with the second magnet 12 on the damping core 9 through magnetic force to generate magnetic damping. During the measurement process, it generates resistance to the rotation of the driven sprocket 6, which helps to improve the measurement accuracy.

[0043] The second magnet 12 is uniformly fixed on the damping core 9. It interacts with the first magnet 11 inside the damping box 8 to generate magnetic damping, which in turn affects the rotation of the driven sprocket 6. This allows the driving sprocket 2 to flatten each link of the chain when it rotates, thus improving the accuracy of the chain length measurement.

[0044] Working principle:

[0045] The first step, during use, involves securing the chain to the drive sprocket 2 and the driven sprocket 6. Then, the motor 3 is started via the control panel of the control terminal 5. The motor 3 will drive the drive sprocket 2 to rotate counterclockwise. The rotation of the drive sprocket 2 will pull the chain to move. Simultaneously, the drive sprocket 2 will drive the input shaft of the rotary encoder 4 to rotate. The data generated by the rotation of the input shaft of the rotary encoder 4 will be transmitted through wires to the STM32 microcontroller in the control terminal 5 to measure the length of the chain movement, thereby determining the chain length, which is then displayed on the control terminal 5. By using the drive sprocket 2 to pull the chain and the rotary encoder 4 to record the number of rotations of the drive sprocket 2, the length of the chain can be measured, achieving the effect of measuring long chains.

[0046] In the second step, while the driving sprocket 2 pulls the chain to move, it also pulls the driven sprocket 6 to rotate. The driven sprocket 6 is fixedly connected to the damping core 9. The second magnet 12, which is evenly installed on the damping core 9, and the first magnet 11, which is evenly installed in the damping box 8, interact magnetically to generate magnetic damping. This causes the driven sprocket 6 to rotate with a certain resistance, reducing the pulling ability of the driving sprocket 2 on the driven sprocket 6. This allows the driving sprocket 2 to flatten the chain links between the driving sprocket 2 and the driven sprocket 6 during rotation, thus improving the measurement accuracy.

[0047] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A chain length measuring machine for mining, comprising a base (1), characterized in that, A drive sprocket (2) is rotatably mounted on the base (1). A motor (3) is fixedly mounted on the base (1). The output shaft of the motor (3) is fixedly connected to the drive sprocket (2). A rotary encoder (4) for counting is fixedly mounted on the base (1). The input shaft of the rotary encoder (4) is fixedly connected to the drive sprocket (2). A control terminal (5) is fixedly mounted on the base (1). The motor (3) and the rotary encoder (4) are connected to the control terminal (5) through wires.

2. A chain length measuring device for mining as claimed in claim 1, characterized in that A driven sprocket (6) is rotatably mounted on the base (1).

3. A mine chain length measuring machine as claimed in claim 2, characterised in that, Bearings (7) are installed between the driven sprocket (6), the driving sprocket (2) and the base (1).

4. A mine chain length measuring device as claimed in claim 1, characterized in that A damping box (8) is fixedly installed on the base (1).

5. A chain length measuring device for mining chains as claimed in claim 4, characterized in that The damping box (8) is internally fitted with a damping core (9).

6. A chain length measuring device for mining chains as claimed in claim 5, characterized in that The damping core (9) and the driven sprocket (6) are fixedly connected.

7. A chain length measuring machine for mining as described in claim 4, characterized in that, The damping box (8) has a first magnet (11) uniformly fixedly installed inside.

8. A chain length measuring machine for mining as described in claim 5, characterized in that, The second magnet (12) is uniformly fixedly installed on the damping core (9).

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