Automatic lubricating system, vibrating screening machine and movable vibrating screening equipment

Abstract

The utility model discloses an automatic lubricating system, a vibration screening machine and movable type vibration screening equipment. A temperature sensor, a rotating speed sensor and an amplitude sensor are installed on a vibration exciter of the vibration screening machine. The input end of the controller is electrically connected with the temperature sensor, the rotating speed sensor and the amplitude sensor, and the controller is used for receiving temperature data detected by the temperature sensor, rotating speed data detected by the rotating speed sensor and amplitude data detected by the amplitude sensor; comparing and judging the acquired numerical values and data change trends of the temperature, the rotating speed and the amplitude with a temperature, rotating speed and amplitude database pre-stored in a controller; the automatic lubricating pump is electrically connected with the output end of the controller, the automatic lubricating pump is further connected with the vibrating screen classifier through a lubricating pipeline, and the controller autonomously controls the automatic lubricating pump to quantitatively supplement lubricating grease to a vibration exciter bearing at fixed times according to a judgment result and intervenes in advance to control the temperature of the vibration exciter bearing.

Description

Technical Field

[0001] The utility model relates to an automatic lubrication system, which belongs to mobile vibration screening equipment. Background Art

[0002] Vibrating screens are widely used in mines and metallurgical plants, coal preparation plants, chemical plants, power plants, foundries, construction sites, cement plants, and grain and food processing plants. Examples include vibrating feeders, vibrating screens, vibrating centrifugal dehydrators, vibrating forming machines, vibrating tampers, vibrators, vibrating rollers, and vibrating test benches. Statistics show that there are over hundreds of uses and types of vibrating screens, and they play a vital role in industry, agriculture, national defense, and all aspects of human life.

[0003] Mobile vibrating screening equipment is flexible, convenient, and highly maneuverable, saving significant capital construction and relocation costs. It can perform on-site material grading and screening operations and can be moved as the raw material mining surface advances, significantly reducing material transportation costs. Furthermore, the speed and amplitude of the vibrating screening machine can be adjusted according to actual operating conditions, ensuring that the mobile vibrating screening equipment has a high degree of adaptability to various working conditions.

[0004] The speed control of the vibrating screening machine is driven by a hydraulic motor. The speed of the hydraulic motor is controlled by controlling the flow of the hydraulic system, thereby controlling the speed of the screening machine. The opening of the electromagnetic proportional valve is controlled by the electronic control box to adjust the flow of the hydraulic system.

[0005] The amplitude control of the vibrating screening machine is adjusted by increasing or decreasing the weight of the eccentric block of the vibrator according to the actual working conditions and material characteristics.

[0006] Existing solutions, such as Figure 1 As shown, the mobile vibrating screening equipment has no automatic lubrication pump and adopts manual lubrication. It needs to manually replenish grease every day. The start and stop of the vibrating screening machine is controlled by the electric control box. The electric control box only plays the start and stop control and over-current shutdown protection functions of the vibrating screening machine. There are no temperature sensors, speed sensors, amplitude sensors and other configurations on the vibrating screening machine. At the same time, there is no display screen on the electric control box, and the operating status data of the vibrating screening machine cannot be viewed. There are no fault alarm prompts and historical fault information cannot be viewed.

[0007] The vibration screening equipment is not equipped with temperature sensors, speed sensors, amplitude sensors, etc., and the electric control box has no screen display, so it is impossible to collect and display the temperature data, temperature rise data, working speed, and working amplitude of the vibration screening machine in real time.

[0008] Temperature measurement requires equipment management personnel to use an infrared temperature measuring gun to monitor the temperature of the bearing seat body next to the equipment. The eccentric block protective cover needs to be removed during temperature monitoring. There are great safety hazards in the temperature measurement process. At the same time, since the bearing seat body is monitored, the bearing temperature cannot be measured directly. The monitoring results are inaccurate and intuitive, and cannot truly and effectively reflect the temperature status and temperature rise status of the bearing.

[0009] To measure the speed of the screening machine, the eccentric block protective cover needs to be removed, and the personnel must be next to the screening machine. The screening machine is in working condition during the measurement process, and there are major safety hazards in the measurement process.

[0010] The amplitude measurement of the screening machine needs to be carried out next to the screening machine. The screening machine is in working condition during the measurement process, and there are great safety hazards in the measurement process.

[0011] When the vibrating screening machine bearings lack grease for a long time due to negligence of personnel, the vibrator bearings will overheat and burn out, which will make it impossible to ensure the safety of the equipment, resulting in malfunction and shutdown, and loss of work and production.

[0012] The vibrating screening machine lacks an automatic lubrication pump, preventing automatic lubrication of the vibrator bearings. Maintenance personnel must visit the equipment site daily for manual lubrication and maintenance, which is labor-intensive and labor-intensive. Furthermore, the nature of vibrating screening operations creates significant noise, dust, and raised dust on-site, significantly impacting personnel health. Summary of the Invention

[0013] In view of the shortcomings of the existing technology, the utility model provides an automatic lubrication system, the main purpose of which is to realize automatic lubrication control of vibration screening equipment, reduce the workload and misoperation of manual maintenance operations, prevent high temperature failure of the vibrator bearing of the vibration screening equipment due to too little or too much grease, and ensure that the vibration screening equipment always maintains continuous and stable operation.

[0014] The utility model is implemented according to the following technical solutions:

[0015] In a first aspect, the present invention provides an automatic lubrication system, comprising:

[0016] The temperature sensor is installed on the vibrating screen exciter to detect the temperature of the exciter bearing;

[0017] The speed sensor is installed on the vibrating screen exciter to detect the speed of the vibrating screen;

[0018] Amplitude sensor, installed on the vibrating screen exciter, is used to detect the amplitude of the vibrating screen;

[0019] An electric control box is provided with a controller, whose input end is electrically connected to the temperature sensor, the speed sensor and the amplitude sensor respectively, and is used to receive temperature data detected by the temperature sensor, speed data detected by the speed sensor and amplitude data detected by the amplitude sensor, and compare and judge the collected temperature, speed and amplitude values and data change trends with the temperature, speed and amplitude database pre-stored in the controller;

[0020] An automatic lubrication pump is electrically connected to the output end of the controller. The automatic lubrication pump is also connected to the vibrating screening machine through a lubrication pipeline. The controller autonomously controls the automatic lubrication pump to replenish lubricating grease to the vibrator bearing at regular intervals and in fixed quantities based on its judgment results, and intervenes in advance to control the temperature of the vibrator bearing.

[0021] In some embodiments, the electrical control box is also equipped with a display screen, which is connected to the output end of the controller to display the exciter bearing temperature data and temperature rise curve as well as speed data and amplitude data in real time, and can also provide fault alarms and fault prompts on the display screen.

[0022] In some embodiments, the output end of the controller is also connected to the power supply of the vibrating screening machine for controlling the start and stop of the vibrating screening machine; when the controller receives a warning that the temperature of the exciter bearing reaches a warning value, the controller controls the vibrating screening machine to shut down for protection.

[0023] In some embodiments, the output terminal of the controller is electrically connected to the coil of a relay, and the normally closed contact of the relay is connected in series to the power supply of the vibrating screening machine.

[0024] In a second aspect, the utility model provides a vibrating screening machine equipped with the above-mentioned automatic lubrication system.

[0025] In a third aspect, the utility model provides a mobile vibrating screening device, comprising the above-mentioned vibrating screening machine.

[0026] Beneficial effects of the utility model:

[0027] Unlike existing lubrication solutions for mobile vibrating screening equipment, this new system constantly monitors the operating status of the screening machine, automatically detecting its operating speed, amplitude, and temperature rise, automatically replenishing grease, and providing fault alarms and automatic shutdown protection. This eliminates the need for constant human monitoring of the equipment's status, daily grease refilling, and the need for daily on-site inspections of lubrication and operating status. This eliminates the need for tedious daily maintenance work, allowing operators to simply view data on the control panel in the machine room. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are part of this utility model and are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be derived from these drawings without inventive effort.

[0029] In the attached figure:

[0030] Figure 1 A schematic diagram of a lubrication system for a vibrating screening machine in the prior art;

[0031] Figure 2 This is a schematic diagram of the automatic lubrication system of the present utility model.

[0032] Figure identification: 1-electric control box, 2-temperature sensor, 3-speed sensor, 4-amplitude sensor, 5-display screen, 6-automatic lubrication pump, 7-vibration screening machine.

[0033] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0035] like Figure 2As shown, an automatic lubrication system is mainly used on a vibrating screening machine 7, including a temperature sensor 2, a speed sensor 3, an amplitude sensor 4, an electric control box 1 and an automatic lubrication pump 6; the temperature sensor 2 is installed on the vibrating screening machine exciter to detect the temperature of the exciter bearing; the speed sensor 3 is installed on the vibrating screening machine exciter to detect the speed of the vibrating screening machine 7; the amplitude sensor 4 is installed on the vibrating screening machine exciter to detect the amplitude of the vibrating screening machine 7; the electric control box 1 is equipped with a controller, whose input terminals are connected to the temperature sensor 2, the speed sensor 3 and the amplitude sensor 4 respectively. The electrical connection is used to receive the temperature data detected by the temperature sensor 2, the speed data detected by the speed sensor 3, and the amplitude data detected by the amplitude sensor 4, and compare and judge the numerical values and data change trends of the collected temperature, speed, and amplitude with the temperature, speed, and amplitude database pre-stored in the controller; the automatic lubrication pump 6 is electrically connected to the output end of the controller, and the automatic lubrication pump 6 is also connected to the vibration screening machine 7 through the lubrication pipeline. The controller autonomously controls the automatic lubrication pump 6 to replenish lubricating grease to the exciter bearing at regular intervals and in a fixed quantity according to its judgment result, and intervenes in advance to control the temperature of the exciter bearing. The output end of the controller is also connected to the power supply of the vibration screening machine 7, which is used to control the start and stop of the vibration screening machine 7; when the controller receives that the temperature of the exciter bearing reaches the warning value, the controller controls the vibration screening machine to shut down for protection.

[0036] In a further solution, the controller's output is electrically connected to a relay coil, and the relay's normally closed contacts are connected in series to the vibrating screen's power supply. When the temperature of the vibrator's bearing reaches a warning threshold, the controller energizes the relay coil, opening its normally closed contacts and shutting down the vibrating screen.

[0037] From the above, it can be seen that the temperature sensor 2, speed sensor 3 and amplitude sensor 4 in the present invention are installed on the vibrator of the vibrating screening machine, and collect the temperature, speed and amplitude of the vibrating screening machine vibrator in real time, and transmit the data to the electric control box 1. The controller in the electric control box 1 processes the collected data and displays the current temperature and temperature rise curve of the vibrator bearing as well as the speed and amplitude of the screening machine in real time. The control system background is based on the current speed and amplitude, and independently judges the working condition of the bearing according to the expert database data. According to the judgment result, it independently controls the start and stop of the lubrication pump to add grease to the vibrator bearing and perform temperature rise control to ensure that the temperature and temperature rise of the high-frequency bearing of the vibrator are always within a reasonable range, that is, to ensure that the vibrating screening machine always operates reliably.

[0038] For further solutions, please refer to Figure 2 As shown, the electric control box 1 is also equipped with a display screen 5, which is connected to the output end of the controller, and displays the exciter bearing temperature data and temperature rise curve as well as speed data and amplitude data in real time, and can also perform fault alarms and fault prompts on the display screen 5.

[0039] It should be noted that the electric control box 1 is equipped with a large-size color LCD screen, which can display the temperature data and temperature rise curve of the vibration screening machine exciter bearing, the speed data and amplitude data of the vibration screening machine 7 in real time. At the same time, the electric control box 1 is equipped with a controller and an expert database, which can automatically judge and execute the corresponding operating procedures based on the numerical value and data change trend of the collected data, and realize autonomous diagnosis without human intervention. It can perform automatic oil replenishment control operations, realize autonomous troubleshooting functions of fixed-time and quantitative oil replenishment, perform fault alarms and shutdown protection, and provide historical fault query functions and fault diagnosis libraries. When the fault cannot be eliminated autonomously, that is, when the temperature rise data cannot be reduced, the display screen will immediately issue an alarm prompt, requiring maintenance personnel to perform troubleshooting to avoid high bearing temperatures or long-term operation at high temperatures, which will affect the service life of the bearings.

[0040] In summary, the present invention provides an automatic lubrication system that achieves the following functions and effects:

[0041] 1. The vibrating screening machine is equipped with a large-size color display screen and a temperature sensor, which can monitor the bearing temperature in real time and provide over-temperature shutdown protection to avoid bearing burnout due to negligence, damage to equipment safety, major property losses, and delayed production and work; at the same time, there is no need for equipment management personnel to go to the production site of the mobile vibrating screening equipment to measure the temperature, thus avoiding personal injury caused by the machinery and ensuring personal safety.

[0042] 2. The vibrating screening machine is equipped with a large-size color display screen and a speed sensor, which can monitor and display the speed data of the vibrating screening machine in real time. Equipment management personnel can view the equipment status in real time in the machine room without entering the equipment site for monitoring, avoiding the damage to personnel health caused by high noise and high dust environment.

[0043] 3. The vibration screening machine is equipped with a large-size color display screen and an amplitude sensor, which can monitor and display the amplitude data of the vibration screening machine in real time. Equipment management personnel can view the equipment status in real time in the machine room without entering the equipment site for monitoring, avoiding the damage to personnel health caused by high noise and high dust environment.

[0044] 4. The vibrating screening machine is equipped with an intelligent screen display electronic control box, which can monitor and display the bearing temperature and temperature rise curve of the vibrating screening machine in real time. Equipment management personnel can view the equipment status in real time in the machine room without entering the equipment site for monitoring, avoiding the damage to personnel health caused by high noise and high dust environment.

[0045] 5. The vibrating screening machine is equipped with an electric control box. The main controller of the electric control box automatically processes the temperature rise data. The expert database combines the current speed data and amplitude data of the vibrating screening machine, and makes advance predictions based on the temperature rise data. It independently controls the automatic lubrication pump to replenish oil at regular times and in fixed quantities, and intervenes in advance to control the bearing temperature changes to prevent high-temperature shutdowns.

[0046] 6. The vibrating screening machine is equipped with an automatic lubrication pump. The electric control box can remotely and automatically control the start and stop of the lubrication pump. There is no need for equipment maintenance personnel to perform routine lubrication maintenance every day, which avoids heavy daily maintenance investment and reduces labor cost investment.

[0047] 7. The start and stop of the automatic lubrication pump and the precise quantitative oil replenishment are controlled by the expert database of the electric control box, which avoids the high-temperature burning of the vibration screening machine bearings due to lack of oil caused by insufficient manual oil replenishment, and avoids the waste caused by excessive oil replenishment during manual oil replenishment, thereby reducing the investment in maintenance material costs.

[0048] The vibration screening machine provided by the present invention is described below. The vibration screening machine described below and the automatic lubrication system described above can be referred to in correspondence with each other.

[0049] The utility model provides a vibrating screening machine, which may include the automatic lubrication system as described in any one of the above embodiments.

[0050] The beneficial effects achieved by the vibrating screening machine provided by the present invention are consistent with the beneficial effects achieved by the automatic lubrication system provided by the present invention, and will not be described in detail here.

[0051] The mobile vibrating screening equipment provided by the present invention is described below. The mobile vibrating screening equipment described below and the vibrating screening machine described above can be referred to in correspondence with each other.

[0052] The utility model provides a mobile vibrating screening device, which may include the vibrating screening machine as described in any one of the above embodiments.

[0053] The beneficial effects achieved by the mobile vibrating screening equipment provided by the present invention are consistent with the beneficial effects achieved by the vibrating screening machine provided by the present invention, and will not be described in detail here.

[0054] In the description provided herein, numerous specific details are described. However, it is understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0055] Furthermore, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are also intended to fall within the scope of protection of the present invention and form different embodiments. For example, in the above embodiments, those skilled in the art will be able to use them in combination based on the known technical solutions and the technical problems to be solved by this application.

[0056] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments using the above-mentioned technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. An automatic lubrication system, characterized in that: include: The temperature sensor is installed on the vibrating screen exciter to detect the temperature of the exciter bearing; The speed sensor is installed on the vibrating screen exciter to detect the speed of the vibrating screen; Amplitude sensor, installed on the vibrating screen exciter, is used to detect the amplitude of the vibrating screen; An electric control box is provided with a controller, whose input end is electrically connected to the temperature sensor, the speed sensor and the amplitude sensor respectively, and is used to receive temperature data detected by the temperature sensor, speed data detected by the speed sensor and amplitude data detected by the amplitude sensor, and compare and judge the collected temperature, speed and amplitude values and data change trends with the temperature, speed and amplitude database pre-stored in the controller; An automatic lubrication pump is electrically connected to the output end of the controller. The automatic lubrication pump is also connected to the vibrating screening machine through a lubrication pipeline. The controller autonomously controls the automatic lubrication pump to replenish lubricating grease to the vibrator bearing at regular intervals and in fixed quantities based on its judgment results, and intervenes in advance to control the temperature of the vibrator bearing.

2. An automatic lubrication system according to claim 1, characterized in that: The electric control box is also equipped with a display screen, which is connected to the output end of the controller and displays the exciter bearing temperature data and temperature rise curve as well as speed data and amplitude data in real time. It can also provide fault alarms and fault prompts on the display screen.

3. The automatic lubrication system according to claim 1, characterized in that: The output end of the controller is also connected to the power supply of the vibrating screening machine for controlling the start and stop of the vibrating screening machine; when the controller receives a warning that the temperature of the exciter bearing reaches the warning value, the controller controls the vibrating screening machine to shut down for protection.

4. An automatic lubrication system according to claim 3, characterized in that: The output end of the controller is electrically connected to the coil of the relay, and the normally closed contact of the relay is connected in series to the power supply of the vibration screening machine.

5. A vibrating screening machine, characterized in that: An automatic lubrication system according to any one of claims 1 to 4 is installed.

6. A mobile vibrating screening device, characterized in that: Including the vibrating screening machine described in claim 5.

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