A noise monitoring device and monitoring method for a reduction gear box of a mixing mill

Abstract

The present invention relates to the field of noise monitoring, and in particular to a noise monitoring device for a gear reducer of a mixing mill and a monitoring method thereof. The device comprises a mixing mill drive motor, the output end of which is connected to a mixing mill braking structure, and the braking structure of the mixing mill is connected to a reduction box assembly of the mixing mill; in the present invention, a sliding rod slides in a sleeve to extrude a compression spring, and when the compression spring senses pressure, the rebound force acts on a pressure sensor, driving an elastic transmission block to contact the inner wall of a transmission tube, and when the gear of the subsequent reduction box vibrates, the transmission tube is driven to shake violently, and then the elastic transmission block is driven to extend and retract, and the vibration force directly causes the elastic transmission block to drive the sliding rod to extrude the pressure sensor, and the pressure sensor starts to give an alarm after the pressure reaches a specified value, thereby improving the precision of vibration transmission and the working effect of real-time noise monitoring.

Description

Technical Field

[0001] The invention belongs to the technical field of noise monitoring, and in particular relates to a noise monitoring device for a reduction box gear of an open mixing mill and a monitoring method thereof. Background Art

[0002] The mixing mill is one of the most commonly used equipment in the rubber industry. It is mainly used for hot refining, mixing and plasticizing of rubber compounds. Its function is to mix and plasticize the evenly mixed raw materials to provide uniform rubber compounds for plastics and rubber products used in subsequent production lines.

[0003] After searching, in the prior art, Chinese patent publication number: CN118706446A, publication date: 2024-09-27, discloses a noise detection method and system applied to a reducer, including a data acquisition and preprocessing module, an audio feature extraction module, a neural network model building module, a comprehensive analysis module and a result display module; the above embodiment effectively improves the accuracy, reliability and efficiency of reducer fault diagnosis, and also provides a more intelligent, precise and efficient technical solution for noise detection of reducers.

[0004] However, the device still has the following defects:

[0005] Since the reducer structure is closed, its working status cannot be directly monitored. The reducer fault is often discovered only after a major fault occurs, causing huge noise or severe vibration, which seriously affects the quality of rubber products and the service life of the mixing mill equipment, thereby reducing the working effect of the noise monitoring device. Summary of the invention

[0006] In view of the above problems, the present invention provides a noise monitoring device for a reduction gear box of a mixing mill, comprising a mixing mill drive motor, the output end of which is connected to a mixing mill braking structure, the mixing mill braking structure is connected to a mixing mill reduction gear box assembly, a limiter assembly is installed in the mixing mill reduction gear box assembly, the output end of which is connected to a real-time monitoring assembly, and a plurality of pressure monitoring assemblies are distributed in a ring array on the outer wall of the real-time monitoring assembly;

[0007] The reduction box assembly of the mixing mill includes a transmission pipe, and the pressure monitoring assembly includes a plurality of sleeve tubes and a plurality of elastic transmission blocks, one end of a group of compression springs is installed on the inner wall of each group of sleeve tubes, a group of sliding rods is installed on the other end of each group of compression springs, and a group of pressure sensors is installed at the junction of each group of sliding rods and compression springs;

[0008] The violent shaking of the transmission tube drives the elastic transmission block to extend and retract.

[0009] Furthermore, a mixing mill coupling is installed on the mixing mill reduction box assembly, and a mixing mill roller is installed on the mixing mill coupling. The mixing mill reduction box assembly also includes a reduction box body, one end of the reduction box body is transmission-connected to the mixing mill braking structure, an output pipe is connected to one side wall of the reduction box body, a sleeve clamping ring is sleeved on the outer wall of the output pipe, the transmission pipe is movably clamped on the sleeve clamping ring, and the mixing mill coupling is connected to the transmission pipe.

[0010] Furthermore, the limiting assembly includes a first fixed plate, the outer wall of the first fixed plate is installed on the inner wall of the transmission tube, a temperature sensor is installed on the side wall of the first fixed plate, a sliding cavity is opened on the first fixed plate, and two groups of second fixed plates are symmetrically installed on one side wall, a group of first electric push rods are installed on the side walls corresponding to the two groups of second fixed plates, and a group of limiting rings are installed on the output end of each group of the first electric push rods.

[0011] Furthermore, a connecting rod is installed on a side wall of the first fixing plate away from the second fixing plate, a connecting block is installed on the connecting rod, and a first motor is installed on a side wall of the connecting block.

[0012] Furthermore, the real-time monitoring component includes an annular body, a second connecting plate is installed on the annular body, one end of the second connecting plate is transmission-connected to the output end of the first motor, and a plurality of sliding cavities are opened in a ring array on one side wall of the annular body, a group of threaded rods are rotatably connected in each group of the sliding cavities, a group of sliding blocks are threadedly connected to each group of the threaded rods, and a group of first connecting plates are installed on one side wall of each group of the sliding blocks.

[0013] Furthermore, a group of second electric push rods are installed on one side wall of each group of the first connecting plates, a group of third motors are installed on the output end of each group of the second electric push rods, a group of third connecting plates are transmission-connected to the output end of each group of the third motors, a group of noise sensors are installed on the outer wall of each group of the third connecting plates, and a group of injection tubes are installed on one side wall of each group of the third connecting plates.

[0014] Furthermore, a group of fourth connecting plates is installed on a side wall of each group of the third connecting plates away from the injection tube, a group of telescopic tubes is installed on a side wall of each group of the fourth connecting plates, a group of fifth connecting plates is installed on a side wall of each group of the telescopic tubes, one end of two groups of tension springs are symmetrically installed on the edge of one side wall of each group of the fourth connecting plates, the other end of each group of tension springs is installed on a side wall of the fifth connecting plate, and a group of vibration sensors is installed on a side wall of each group of the fifth connecting plates away from the tension springs.

[0015] Furthermore, the pressure monitoring assembly also includes a bonding plate, each group of the bonding plates is installed on the outer wall of the annular body, each group of the sleeve tubes is installed on a side wall of the bonding plate away from the annular body, each group of the sliding rods is slidably connected to the inner wall of the sleeve tube, a group of second electromagnetic blocks is installed on the outer wall of each group of sliding rods, a group of third electric push rods is installed on one side wall of each group of the bonding plates, a group of first electromagnetic blocks is installed on the output end of each group of the third electric push rods, and the first electromagnetic blocks are magnetically connected to the second electromagnetic blocks.

[0016] Furthermore, a group of sixth connecting plates are installed on the side wall of each group of sliding rods away from the pressure sensor, two groups of slideways are symmetrically opened on the side wall of each group of sixth connecting plates away from the sliding rods, a group of sliding plates are slidably connected in each group of slideways, each group of elastic transmission blocks are installed between the two groups of sliding plates, one end of a group of support tubes are installed on the side wall of each group of sixth connecting plates, and the other end of each group of support tubes is installed on the elastic transmission block.

[0017] A monitoring method for a noise monitoring device of a reduction gear box of an open mixing mill, the monitoring method comprising:

[0018] The sliding rod is driven to slide in the sleeve, and the sliding rod begins to squeeze the compression spring during the sliding process;

[0019] The compression spring exerts a rebound force on the pressure sensor when it senses pressure;

[0020] When the gearbox vibrates during operation, the transmission tube will vibrate violently;

[0021] Then drive the elastic transmission block to extend and retract;

[0022] The elastic transmission block drives the sliding rod to squeeze the pressure sensor;

[0023] The pressure sensor starts to alarm when the pressure reaches the specified value.

[0024] The beneficial effects of the present invention are:

[0025] 1. The sliding rod slides in the sleeve to squeeze the compression spring. When the compression spring senses pressure, it exerts rebound force on the pressure sensor, driving the elastic transmission block to contact the inner wall of the transmission tube. When the gear of the subsequent reduction box vibrates, the transmission tube will shake violently, and then start to drive the elastic transmission block to expand and contract. The vibration force directly causes the elastic transmission block to drive the sliding rod to squeeze the pressure sensor, and the pressure sensor starts to alarm when the pressure reaches the specified value, thereby improving the precision of vibration transmission and the working effect of real-time noise monitoring.

[0026] 2. Start the second motor to drive several groups of first connecting plates to move in opposite directions. During the movement, the output ends of several groups of vibration sensors are driven to contact the inner wall of the transmission tube. When vibration occurs subsequently, real-time monitoring is performed through the vibration sensor. When shaking occurs, the vibration sensor will be driven to squeeze the tension spring. When the tension spring senses the squeezing, it drives the vibration sensor to rebound, thereby improving the buffering protection effect of the vibration sensor while improving the transmission fitting effect.

[0027] 3. When the pressure monitoring component is installed in place, the sliding cavity slides and fits against the outer wall of the output pipe. Then, the first electric push rod is started to push the limit ring to fit against the outer wall of the output pipe for clamping and limiting. Then, the temperature is monitored through the temperature sensor, and the first motor can be started to drive the pressure monitoring component to rotate, thereby expanding the monitoring range and improving the installation stability of the device.

[0028] 4. During the normal use of the reduction box of the mixing mill, the second electric push rod is started to push the noise sensor back and forth in the transmission tube to monitor the noise, thereby expanding the monitoring range; after the work is completed, the third motor can be started to drive the third connecting plate to rotate. While the third connecting plate rotates, it drives the output ends of several groups of injection tubes to contact the inner wall of the transmission tube, and then drives the injection tubes to squeeze the protective liquid against the inner wall of the transmission tube, and then starts the second electric push rod to push the extrusion, thereby expanding the extrusion range and improving the maintenance effect.

[0029] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of the structure of a noise monitoring device according to an embodiment of the present invention is shown;

[0032] Figure 2 A schematic structural diagram of a reduction box assembly for a mixing mill according to an embodiment of the present invention is shown;

[0033] Figure 3 A schematic diagram of the structure of a limit assembly according to an embodiment of the present invention is shown;

[0034] Figure 4 A schematic structural diagram of a first fixing plate according to an embodiment of the present invention is shown;

[0035] Figure 5 A schematic diagram of the structure of a real-time monitoring component according to an embodiment of the present invention is shown;

[0036] Figure 6 A schematic cross-sectional view of a ring body according to an embodiment of the present invention is shown;

[0037] Figure 7 A schematic structural diagram of a fourth connecting plate according to an embodiment of the present invention is shown;

[0038] Figure 8 A schematic diagram of the structure of a pressure monitoring component according to an embodiment of the present invention is shown;

[0039] Fig. 9 A schematic cross-sectional view of a sleeve according to an embodiment of the present invention is shown.

[0040] In the figure: 1. driving motor of open mill; 2. braking structure of open mill; 3. speed reducer assembly of open mill; 301. speed reducer body; 302. output pipe; 303. sleeve clamp ring; 304. transmission pipe; 4. coupling of open mill; 5. roller of open mill; 6. limiting assembly; 601. first fixed plate; 602. sliding cavity; 603. second fixed plate; 604. first electric push rod; 605. limiting ring; 606. connecting rod; 607. connecting block; 608. first motor; 609. temperature sensor; 7. real-time monitoring assembly; 701. annular body; 702. threaded rod; 703. sliding cavity; 704. sliding block; 705. first connecting plate; 706. second electric push rod machine; 707, second connecting plate; 708, second electric push rod; 709, third motor; 710, third connecting plate; 711, injection tube; 712, noise sensor; 713, fourth connecting plate; 714, telescopic tube; 715, tension spring; 716, fifth connecting plate; 717, vibration sensor; 8, pressure monitoring assembly; 801, fitting plate; 802, sleeve tube; 803, compression spring; 804, sliding rod; 805, pressure sensor; 806, third electric push rod; 807, first electromagnetic block; 808, second electromagnetic block; 809, sixth connecting plate; 810, slideway; 811, sliding plate; 812, elastic transmission block; 813, support tube. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] The embodiment of the present invention provides a noise monitoring device for a reduction gear box of a mixing mill. The device comprises a mixing mill drive motor 1, for example, Figure 1 and Figure 2 As shown, the output end of the mixing mill driving motor 1 is transmission-connected with the mixing mill braking structure 2, the mixing mill braking structure 2 is transmission-connected with the mixing mill reduction box assembly 3, the mixing mill reduction box assembly 3 is installed with the mixing mill coupling 4, the mixing mill roller 5 is installed on the mixing mill coupling 4, a limit assembly 6 is installed in the mixing mill reduction box assembly 3, the output end of the limit assembly 6 is transmission-connected with the real-time monitoring assembly 7, and a plurality of groups of pressure monitoring assemblies 8 are distributed in a ring array on the outer wall of the real-time monitoring assembly 7.

[0043] The reduction gearbox, also known as the reduction gearbox, is an indispensable transmission device in the mixing mill equipment. Through the mutual meshing of gears, the power of the input shaft is transmitted to the output shaft, realizing the transmission of power and speed, converting the high-speed rotation of the motor end into low speed and transmitting it to the mixing mill roller.

[0044] The mixing mill driving motor 1 is connected to the mixing mill roller 5 through the mixing mill coupling 4 after the mixing mill reduction box assembly 3 changes speed, so as to drive the mixing mill roller 5 to rotate.

[0045] For example, Figure 3 As shown, the mixing mill reduction box assembly 3 includes a reduction box body 301, one end of the reduction box body 301 is drivingly connected to the mixing mill braking structure 2, an output pipe 302 is connected to one side wall of the reduction box body 301, a sleeve clamping ring 303 is sleeved on the outer wall of the output pipe 302, a transmission pipe 304 is movably clamped on the sleeve clamping ring 303, and the mixing mill coupling 4 is connected to the transmission pipe 304.

[0046] For example, Figure 4As shown, the limiting assembly 6 includes a first fixed plate 601, the outer wall of the first fixed plate 601 is installed on the inner wall of the transmission tube 304, a temperature sensor 609 is installed on the side wall of the first fixed plate 601, a sliding cavity 602 is opened on the first fixed plate 601, and two groups of second fixed plates 603 are symmetrically installed on one side wall, a group of first electric push rods 604 are installed on the side walls corresponding to the two groups of second fixed plates 603, a group of limiting rings 605 are installed on the output end of each group of the first electric push rods 604, a connecting rod 606 is installed on the side wall of the first fixed plate 601 away from the second fixed plate 603, a connecting block 607 is installed on the connecting rod 606, and a first motor 608 is installed on one side wall of the connecting block 607.

[0047] When the pressure monitoring component 8 is installed in place, the sliding cavity 602 slides and fits against the outer wall of the output tube 302, and then the first electric push rod 604 is started to push the limit ring 605 to fit against the outer wall of the output tube 302 for clamping and limiting. Then, temperature monitoring is performed through the temperature sensor 609, and the first motor 608 can be started subsequently to drive the pressure monitoring component 8 to rotate, thereby expanding the monitoring range and improving the installation stability of the device.

[0048] For example, Figure 5 , Figure 6 and Figure 7As shown, the real-time monitoring component 7 includes a circular ring body 701, on which a second connecting plate 707 is installed, one end of the second connecting plate 707 is transmission-connected to the output end of the first motor 608, and a plurality of sliding cavities 703 are provided in a circular array on one side wall of the circular ring body 701, each group of the sliding cavities 703 is rotatably connected with a group of threaded rods 702, each group of the threaded rods 702 is threadedly connected with a group of sliding blocks 704, each group of the sliding blocks 704 is slidably connected in the sliding cavity 703, and a group of first connecting plates 705 are installed on one side wall of each group of the sliding blocks 704, and a plurality of second motors 706 are distributed in a circular array on the inner wall of the circular ring body 701, and the output end of each group of the second motors 706 is transmission-connected to one of the groups of threaded rods 702, and a group of second electric push rods 708 are installed on one side wall of each group of the first connecting plates 705, and the output end of each group of the second electric push rods 708 is output. A group of third motors 709 are installed on the output end, and a group of third connecting plates 710 are drivingly connected to the output end of each group of the third motors 709. A group of noise sensors 712 are installed on the outer wall of each group of the third connecting plates 710. A group of injection tubes 711 are installed on one side wall of each group of the third connecting plates 710. A group of fourth connecting plates 713 are installed on one side wall of each group of the third connecting plates 710 away from the injection tubes 711. A group of telescopic tubes 714 are installed on one side wall of each group of the fourth connecting plates 713. A group of fifth connecting plates 716 are installed on one side wall of each group of the telescopic tubes 714. One end of two groups of tension springs 715 are symmetrically installed on the edge of one side wall of each group of the fourth connecting plates 713. The other end of each group of the tension springs 715 is installed on one side wall of the fifth connecting plate 716. A group of vibration sensors 717 are installed on one side wall of each group of the fifth connecting plates 716 away from the tension springs 715.

[0049] During normal use of the reduction box of the mixing mill, the second electric push rod 708 can be started to push the noise sensor 712 to monitor the noise back and forth in the transmission tube 304, and in order to expand the monitoring range, the second motor 706 is started to drive the threaded rod 702 to rotate, and the threaded rod 702 drives the sliding block 704 to slide in the sliding cavity 703, thereby driving several groups of first connecting plates 705 to move in the opposite direction. During the movement, the output ends of several groups of vibration sensors 717 are driven to contact the inner wall of the transmission tube 304. When vibration occurs subsequently, real-time monitoring is performed through the vibration sensor 717, and when shaking occurs, the vibration sensor 717 is driven to squeeze the tension spring 715. When the tension spring 715 feels squeezed, it drives the vibration sensor 717 to rebound, thereby improving the buffering protection effect of the vibration sensor while improving the transmission fitting effect.

[0050] After the work is completed, the third motor 709 is started to drive the third connecting plate 710 to rotate. While the third connecting plate 710 rotates, it drives the output ends of several groups of injection tubes 711 to contact the inner wall of the transmission tube 304, and then drives the injection tubes 711 to squeeze the protective liquid against the inner wall of the transmission tube 304. Then, the second electric push rod 708 is started to push the extrusion, which expands the extrusion range and improves the maintenance effect.

[0051] For example, Figure 8 and Fig. 9 As shown, the pressure monitoring assembly 8 includes a bonding plate 801, each group of the bonding plates 801 is installed on the outer wall of the annular body 701, a group of sleeve tubes 802 are installed on the side wall of each group of the bonding plates 801 away from the annular body 701, one end of a group of compression springs 803 are installed on the inner wall of each group of the sleeve tubes 802, a group of sliding rods 804 are installed on the other end of each group of the compression springs 803, each group of the sliding rods 804 are slidably connected to the inner wall of the sleeve tube 802, a group of pressure sensors 805 are installed at the junction of each group of the sliding rods 804 and the compression springs 803, a group of second electromagnetic blocks 808 are installed on the outer wall of each group of the sliding rods 804, and a group of A group of third electric push rods 806, each group of the third electric push rods 806 is equipped with a group of first electromagnetic blocks 807 on the output end, the first electromagnetic blocks 807 are magnetically connected to the second electromagnetic blocks 808, and each group of the sliding rods 804 is equipped with a group of sixth connecting plates 809 on the side wall away from the pressure sensor 805, and each group of the sixth connecting plates 809 is symmetrically provided with two groups of slideways 810 on the side wall away from the sliding rods 804, and each group of the slideways 810 is slidably connected with a group of sliding plates 811, and an elastic transmission block 812 is connected between the two groups of sliding plates 811, and one end of a group of support tubes 813 is installed on one side wall of each group of the sixth connecting plates 809, and the other end of each group of the support tubes 813 is installed on the elastic transmission block 812.

[0052] Before the pressure monitoring component 8 works, the third electric push rod 806 is first started to push the first electromagnetic block 807 and the second electromagnetic block 808 to be magnetically connected, and then the third electric push rod 806 is started to drive the second electromagnetic block 808 to move in the direction close to the bonding plate 801, and then the sliding rod 804 is driven to slide in the sleeve 802. During the sliding process, the sliding rod 804 begins to squeeze the compression spring 803. When the compression spring 803 senses the pressure, it exerts a rebound force on the pressure sensor 805. Then, several groups of elastic transmission blocks 812 are placed in the transmission tube 304, and then the magnetic connection state between the first electromagnetic block 807 and the second electromagnetic block 808 is broken away. The compression spring 803 begins to rebound, and then drives the elastic transmission block 812 to contact the transmission tube 30 4, and then the elastic transmission block 812 begins to deform and fit according to the curvature of the inner wall of the transmission tube 304 with the help of pressure, thereby expanding the contact area between the elastic transmission block 812 and the transmission tube 304, and then marking the value of the pressure sensor 805; when the subsequent reduction gear working condition vibrates, it will drive the transmission tube 304 to shake violently, and then start to drive the elastic transmission block 812 to extend and retract, and since the support tube 813 is directly connected between the elastic transmission block 812 and the sixth connecting plate 809, the vibration force directly causes the elastic transmission block 812 to drive the sliding rod 804 to squeeze the pressure sensor 805, and the pressure sensor 805 starts to alarm after the pressure reaches the specified value, thereby improving the precision of vibration transmission and the working effect of real-time noise monitoring.

[0053] The sliding rod 804 slides in the sleeve 802 to squeeze the compression spring 803. When the compression spring 803 senses the pressure, it exerts a rebound force on the pressure sensor 805, driving the elastic transmission block 812 to press against the inner wall of the transmission tube 304. When the gear of the subsequent reduction gear box vibrates, the transmission tube 304 is driven to shake violently, and then the elastic transmission block 812 is driven to expand and contract. The vibration force directly causes the elastic transmission block 812 to drive the sliding rod 804 to squeeze the pressure sensor 805, and the pressure sensor 805 starts to alarm after the pressure reaches the specified value, thereby improving the precision of vibration transmission and the working effect of real-time noise monitoring.

[0054] Starting the second motor 706 drives several groups of first connecting plates 705 to move in opposite directions. During the movement, the output ends of several groups of vibration sensors 717 are driven to contact the inner wall of the transmission tube 304. When vibration occurs subsequently, real-time monitoring is performed through the vibration sensor 717. When shaking occurs, the vibration sensor 717 will be driven to squeeze the tension spring 715. When the tension spring 715 senses the squeezing, it drives the vibration sensor 717 to rebound, thereby improving the buffering and protection effect of the vibration sensor while improving the transmission fitting effect.

[0055] When the pressure monitoring component 8 is installed in place, the sliding cavity 602 slides and fits against the outer wall of the output tube 302, and then the first electric push rod 604 is started to push the limit ring 605 to fit against the outer wall of the output tube 302 for clamping and limiting. Then, temperature monitoring is performed through the temperature sensor 609, and the first motor 608 can be started subsequently to drive the pressure monitoring component 8 to rotate, thereby expanding the monitoring range and improving the installation stability of the device.

[0056] During normal use of the grinding mill reducer, the second electric push rod 708 is started to push the noise sensor 712 to monitor the noise back and forth in the transmission tube 304, thereby expanding the monitoring range; after the work is completed, the third motor 709 can be started to drive the third connecting plate 710 to rotate. While the third connecting plate 710 rotates, it drives the output ends of several groups of injection tubes 711 to contact the inner wall of the transmission tube 304, and then drives the injection tubes 711 to squeeze the protective liquid against the inner wall of the transmission tube 304, and then starts the second electric push rod 708 to push and squeeze, thereby expanding the squeezing range and improving the maintenance effect.

[0057] Based on the above-mentioned noise monitoring device for a reduction gear box of a mixing mill, an embodiment of the present invention further proposes a monitoring method for the noise monitoring device for a reduction gear box of a mixing mill. Exemplarily, the monitoring method includes:

[0058] The reduction gearbox transmits the power of the input shaft to the output shaft through the mutual meshing of gears, thus realizing the transmission of power and speed;

[0059] The driving motor of the mixing mill is connected to the roller of the mixing mill through the mixing mill coupling after the speed is changed by the reduction box assembly of the mixing mill, so as to drive the roller of the mixing mill to rotate;

[0060] The third electric push rod is started to push the first electromagnetic block to be magnetically connected with the second electromagnetic block, and then the third electric push rod is started to drive the second electromagnetic block to move toward the bonding plate;

[0061] The sliding rod is driven to slide in the sleeve. During the sliding process, the sliding rod begins to squeeze the compression spring. When the compression spring senses the pressure, it exerts a rebound force on the pressure sensor.

[0062] The elastic transmission block is placed in the transmission tube, the magnetic connection between the first electromagnetic block and the second electromagnetic block is separated, and the compression spring starts to rebound;

[0063] The elastic transmission block is driven to contact the inner wall of the transmission tube, and the elastic transmission block begins to deform and fit according to the curvature of the inner wall of the transmission tube with the help of pressure;

[0064] When the gearbox vibrates, the transmission tube will shake violently, which will then drive the elastic transmission block to expand and contract.

[0065] The elastic transmission block drives the sliding rod to squeeze the pressure sensor, and the pressure sensor starts to alarm when the pressure reaches the specified value;

[0066] Start the first electric push rod to push the limit ring to fit on the outer wall of the output pipe for clamping and limiting, and monitor the temperature through the temperature sensor;

[0067] Start the second electric push rod to push the noise sensor back and forth in the transmission tube to monitor the noise, and then start the second motor to drive the threaded rod to rotate;

[0068] The threaded rod drives the sliding block to slide in the sliding cavity, and then drives the plurality of groups of first connecting plates to move in opposite directions;

[0069] The output end of the vibration sensor contacts the inner wall of the transmission tube, and the vibration sensor is used to monitor the vibration in real time.

[0070] When shaking occurs, the vibration sensor is driven to squeeze the tension spring, and when the tension spring senses the squeezing, the vibration sensor is driven to rebound.

[0071] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A noise monitoring device for a reduction gear box of a mixing mill, comprising a mixing mill drive motor, characterized in that: The output end of the driving motor of the mixing mill is connected to the braking structure of the mixing mill, the braking structure of the mixing mill is connected to the reduction box assembly of the mixing mill, a limit assembly is installed in the reduction box assembly of the mixing mill, the output end of the limit assembly is connected to the real-time monitoring assembly, and a plurality of groups of pressure monitoring assemblies are distributed in a ring array on the outer wall of the real-time monitoring assembly; The reduction box assembly of the mixing mill includes a transmission pipe, and the pressure monitoring assembly includes a plurality of sleeve tubes and a plurality of elastic transmission blocks, one end of a group of compression springs is installed on the inner wall of each group of sleeve tubes, a group of sliding rods is installed on the other end of each group of compression springs, and a group of pressure sensors is installed at the junction of each group of sliding rods and compression springs; The sliding rod slides in the sleeve to squeeze the compression spring. When the compression spring senses pressure, it exerts rebound force on the pressure sensor, driving the elastic transmission block to contact the inner wall of the transmission tube. When the gear of the subsequent reduction box vibrates, the transmission tube is driven to shake violently, and then the elastic transmission block is driven to expand and contract. The vibration force directly causes the elastic transmission block to drive the sliding rod to squeeze the pressure sensor, and the pressure sensor starts to alarm when the pressure reaches the specified value, thereby improving the precision of vibration transmission and the working effect of real-time noise monitoring. The real-time monitoring component includes a circular ring body and a plurality of groups of first connecting plates, a group of second electric push rods are installed on one side wall of each group of the first connecting plates, a group of third motors are installed on the output end of each group of the second electric push rods, a group of third connecting plates are drivingly connected to the output end of each group of the third motors, a group of noise sensors are installed on the outer wall of each group of the third connecting plates, and a group of injection tubes are installed on one side wall of each group of the third connecting plates; A group of fourth connecting plates are installed on one side wall of each group of third connecting plates away from the injection tube, a group of telescopic tubes are installed on one side wall of each group of fourth connecting plates, a group of fifth connecting plates are installed on one side wall of each group of telescopic tubes, one end of two groups of tension springs are symmetrically installed on the edge of one side wall of each group of fourth connecting plates, the other end of each group of tension springs is installed on one side wall of the fifth connecting plate, and a group of vibration sensors are installed on one side wall of each group of fifth connecting plates away from the tension springs.

2. The noise monitoring device for the reduction gear of a mixing mill according to claim 1, characterized in that: The mixing mill reduction box assembly is provided with a mixing mill coupling, and the mixing mill roller is provided with the mixing mill coupling. The mixing mill reduction box assembly also includes a reduction box body, one end of which is drivingly connected to the mixing mill braking structure, an output pipe is connected to one side wall of the reduction box body, a sleeve clamping ring is sleeved on the outer wall of the output pipe, the transmission pipe is movably clamped on the sleeve clamping ring, and the mixing mill coupling is connected to the transmission pipe.

3. The noise monitoring device for the reduction gear of a mixing mill according to claim 1, characterized in that: The limiting assembly includes a first fixed plate, the outer wall of the first fixed plate is installed on the inner wall of the transmission tube, a temperature sensor is installed on the side wall of the first fixed plate, a sliding cavity is opened on the first fixed plate, and two groups of second fixed plates are symmetrically installed on one side wall, a group of first electric push rods are installed on the side walls corresponding to the two groups of second fixed plates, and a group of limiting rings are installed on the output end of each group of the first electric push rods.

4. The noise monitoring device for the reduction gear of a mixing mill according to claim 3 is characterized in that: A connecting rod is installed on a side wall of the first fixing plate away from the second fixing plate, a connecting block is installed on the connecting rod, and a first motor is installed on a side wall of the connecting block.

5. The noise monitoring device for the reduction gear of a mixing mill according to claim 4, characterized in that: A second connecting plate is installed on the annular body, one end of the second connecting plate is transmission-connected to the output end of the first motor, a side wall of the annular body is provided with a plurality of sliding cavities in a ring array, each group of the sliding cavities is rotatably connected with a group of threaded rods, each group of the threaded rods is threadedly connected with a group of sliding blocks, and each group of the first connecting plates is installed on a side wall of the sliding block.

6. The noise monitoring device for the reduction gear of a mixing mill according to claim 5, characterized in that: The pressure monitoring assembly also includes a bonding plate, each group of the bonding plates is installed on the outer wall of the annular body, each group of the sleeve tubes is installed on a side wall of the bonding plate away from the annular body, each group of the sliding rods is slidably connected to the inner wall of the sleeve tube, a group of second electromagnetic blocks is installed on the outer wall of each group of sliding rods, a group of third electric push rods is installed on one side wall of each group of the bonding plates, a group of first electromagnetic blocks is installed on the output end of each group of the third electric push rods, and the first electromagnetic blocks are magnetically connected to the second electromagnetic blocks.

7. The noise monitoring device for the reduction gear of a mixing mill according to claim 1, characterized in that: A group of sixth connecting plates are installed on one side wall of each group of sliding rods away from the pressure sensor, two groups of slideways are symmetrically opened on one side wall of each group of sixth connecting plates away from the sliding rods, a group of sliding plates are slidably connected in each group of slideways, each group of elastic transmission blocks are installed between the two groups of sliding plates, one end of a group of support tubes are installed on one side wall of each group of sixth connecting plates, and the other end of each group of support tubes is installed on the elastic transmission block.

8. A monitoring method for the noise monitoring device of the reduction box gear of an open mixing mill according to any one of claims 1 to 7, characterized in that: The monitoring method comprises: The sliding rod is driven to slide in the sleeve, and the sliding rod begins to squeeze the compression spring during the sliding process; The compression spring exerts a rebound force on the pressure sensor when it senses pressure; When the gearbox vibrates during operation, the transmission tube will vibrate violently; Then drive the elastic transmission block to extend and retract; The elastic transmission block drives the sliding rod to squeeze the pressure sensor; The pressure sensor starts to alarm when the pressure reaches the specified value.

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