Automatic tension adjusting device for grate

Abstract

The utility model provides a grate automatic tension adjusting device, the grate driving axle and the grate driven axle, the upper portion of grate driving axle is equipped with the monitoring gyro wheel that rolls along with the running direction of grate, the side of grate driven axle is connected hydraulic oil cylinder through the pipeline, the hydraulic oil station system is connected with hydraulic oil cylinder through high pressure oil pipe. The monitoring gyro wheel is installed on the grate surface of grate driving axle side, and the monitoring gyro wheel rolls along with the running direction of grate, and the limit switch is arranged above the monitoring gyro wheel, and the limit switch is installed in the warehouse outside of grate driving axle, and the hydraulic oil cylinder is installed on the side of grate driven axle, and the hydraulic oil cylinder is connected with hydraulic oil station system through high pressure oil pipe, and the limit switch and hydraulic oil station oil pump carry out interlocking, when the bulge of grate appears, the monitoring gyro wheel goes up and contacts the limit switch, and the oil pump opens automatically and pressurizes to make the hydraulic oil cylinder push out and adjust the tension of grate and keep the pressure, and the monitoring gyro wheel falls after the leveling of grate, and the limit switch is separated, and the grate runs steadily under the fixed pressure of oil station.

Description

Technical Field

[0001] This utility model relates to an automatic tensioning adjustment device for incinerator grate, belonging to the field of incinerator equipment transmission, and is mainly an incinerator grate device for comprehensive treatment of phosphate salts from glyphosate mother liquor. Background Technology

[0002] Incinerators have been widely used and continuously improved in the treatment of mother liquor. However, as the temperature inside the furnace rises, the grate is prone to bulging due to thermal expansion. If not detected in time, it can lead to large-area damage to the grate, seriously affecting the continuous and stable operation of the equipment, bringing certain environmental risks and being detrimental to production stability.

[0003] Currently, the tension adjustment of the main (driven) shafts of the grate used in the incineration industry is all done manually. The advantage of this process is that operators can make intuitive adjustments based on actual conditions, and it is well-adaptable to different working scenarios and equipment states. However, it also has significant limitations and disadvantages: 1. Manual adjustment requires operators to spend time and effort, cannot achieve rapid adjustments, and is inefficient; 2. It is labor-intensive, as operators need to make adjustments manually, increasing their workload. Especially in large incinerators, the tension adjustment of the main (driven) shaft requires considerable force and complex operations, placing high demands on operators; 3. Manual adjustment cannot provide real-time monitoring of the grate's operating status, severely testing the responsibility of on-site operators, and making event monitoring and adjustment impossible. Summary of the Invention

[0004] The main purpose of this utility model is to provide an automatic grate tensioning adjustment device, which has the following functions: first, to realize real-time monitoring of grate operation and automatic tension adjustment; second, to reduce the labor intensity of employees and increase efficiency; and third, to precisely control the hydraulic pressure through the automatic control system, thereby adjusting the tension of the shaft and achieving high-precision control and rapid response.

[0005] To solve the above-mentioned technical problems, an automatic grate tensioning adjustment device is provided, comprising: a grate drive shaft and a grate driven shaft.

[0006] The upper part of the grate drive shaft is equipped with a monitoring roller that rolls in the direction of grate operation;

[0007] The side of the grate driven shaft is connected to a hydraulic cylinder via a pipe;

[0008] The hydraulic oil station system is connected to the hydraulic cylinder via high-pressure oil pipes and includes an oil pump unit, an integrated oil circuit block, a control module, and an oil tank.

[0009] The grate is a scale plate chain grate, with the chains connected by crossbeams and scale plates installed on the crossbeams. The grate reducer is installed on the outside of the grate drive shaft and connected by a coupling to provide the grate power source. The drive shaft rotates to drive the chain and keep the grate running.

[0010] The oil pump unit pressurizes and outputs hydraulic oil from the oil tank via a motor drive. The high-pressure oil output by the oil pump first enters the integrated oil circuit block, and the flow direction, pressure and flow rate of the hydraulic oil are regulated by a combination of different hydraulic valves.

[0011] Oil pump unit: The power source of the hydraulic oil station. Driven by an electric motor, it converts mechanical energy into the pressure energy of hydraulic oil, pressurizing and outputting the hydraulic oil in the tank.

[0012] Integrated manifold: This is equivalent to the "traffic hub" of the system. It integrates multiple hydraulic valves, such as directional valves, relief valves, and throttle valves.

[0013] The control module, the "brain" of the system, typically consists of electrical components and control software. It receives external command signals, including limit switch signals from the grate drive shaft compartment, and controls the hydraulic pump unit and hydraulic valves in the integrated hydraulic circuit block according to a preset program. For example, it controls the start, stop, and speed of the oil pump motor, and adjusts the opening of the hydraulic valves, thereby precisely controlling the operating state of the hydraulic oil station system and ensuring that the hydraulic cylinders move according to predetermined requirements.

[0014] Oil tank: Primarily used to store hydraulic oil, continuously providing the working medium for the system. Simultaneously, the oil tank also serves to dissipate heat, settle impurities, and separate air from the oil. The oil pump draws oil from the tank, and the returned oil after system operation returns to the tank, thus ensuring the hydraulic oil is continuously circulated within the system and maintaining stable operation.

[0015] The monitoring roller is a vertically movable structure. A monitoring probe is installed above the monitoring roller, and a limit switch is installed above the monitoring probe. The limit switch is installed outside the grate drive shaft compartment and is mainly used to monitor whether the grate surface scales at the main shaft drive are arched, so as to adjust the tensioning device in the future and avoid high temperature damage.

[0016] The hydraulic pump unit of the hydraulic oil station system is a gear hydraulic pump, and the integrated oil circuit block adopts a modular structure to reduce leakage.

[0017] A distribution platform is provided between the hydraulic cylinder and the hydraulic oil station system to balance the pressure of the oil circuits on both sides.

[0018] The limit switch is interlocked with the oil pump of the hydraulic oil station system; when the grate bulges, the monitoring roller moves upward to trigger the limit switch, and the hydraulic oil station system automatically starts the oil pump to pressurize, driving the hydraulic cylinder to adjust the grate tension and maintain a constant pressure.

[0019] The limit switch is interlocked with the oil pump of the hydraulic oil station system. When the grate bulges, the monitoring roller moves upward and triggers the limit switch. The hydraulic oil station system automatically starts the oil pump to pressurize, so that the hydraulic cylinder pushes out to adjust the grate tension and maintain the pressure. After the grate is leveled, the monitoring roller falls and disengages from the limit switch, the alarm is released, and the grate operates stably under the fixed pressure of the oil station.

[0020] The hydraulic oil station system uses high-temperature resistant and wear-resistant hydraulic oil, and the hydraulic cylinders are equipped with a cooling water system.

[0021] One side of the hydraulic cylinder is fixed by a hydraulic cylinder fixing bracket via a pin; the other side of the hydraulic cylinder is fixed by a driven shaft fixing bracket via a pin.

[0022] In the preferred embodiment, the monitoring roller is a structure that can only move up and down and rolls in the direction of grate operation. When grate bulging (or leveling) occurs, the monitoring roller moves up to contact the limit switch (or falls down to disengage from the limit switch).

[0023] In the preferred embodiment, the hydraulic pump used in the hydraulic oil station system is a gear hydraulic pump, which has the characteristics of small size, light weight, high efficiency and stable pressure.

[0024] In the preferred embodiment, all hydraulic valve control circuits of the hydraulic oil station system adopt an integrated oil circuit block structure, which makes the system characterized by less leakage, compact structure, and easy maintenance.

[0025] In the preferred embodiment, a distribution platform must be installed at the outlet of the hydraulic oil station to prevent pressure imbalance caused by inconsistent distances between the oil lines on both sides.

[0026] In the preferred embodiment, the limit switch is interlocked with the hydraulic oil pump of the hydraulic station. When the monitoring roller moves upward and contacts the monitoring probe, and continues to move upward and contacts the limit switch, the oil pump automatically starts to pressurize and push out the hydraulic cylinder to adjust the grate tension and maintain the pressure.

[0027] The beneficial effects of this utility model are as follows:

[0028] This invention provides an automatic grate tension adjustment device, applicable to automatic monitoring and tension adjustment of grate bulging under high-temperature environments, ensuring continuous and stable grate operation. This invention is applicable to automatic tension adjustment and monitoring of grate tension in all incinerators. Attached Figure Description

[0029] Figure 1 A schematic diagram of an automatic grate tensioning adjustment device.

[0030] Figure 2 This utility model presents a schematic diagram of the driven shaft tensioning device.

[0031] The diagram is labeled as follows: 1. Grate drive shaft; 2. Grate; 3. Monitoring roller; 4. Monitoring probe; 5. Limit switch; 6. Grate driven shaft; 7. Hydraulic cylinder; 8. Hydraulic oil station system; 9. Hydraulic cylinder fixing bracket; 10. Driven shaft fixing bracket; 11. Pin; a. Observation port; b. Oil phase feed pipe; c. Oil phase discharge pipe; d. Circulating water feed pipe; e. Circulating water discharge pipe; f. Driven shaft end face. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0033] An automatic tensioning adjustment device for a grate furnace includes a grate drive shaft 1 and a grate driven shaft 6 inside the grate, connected by a chain. Crossbeams and scales are installed between the chains. Monitoring rollers 3 are installed on the surface of the grate 2, and the monitoring rollers 3 roll in the direction of grate 2. A monitoring probe 4 is installed above the monitoring roller 3, and a limit switch 5 is installed above the monitoring probe 4. The limit switch 5 is installed outside the grate drive shaft 1 (to avoid damage from high temperature). A hydraulic cylinder 7 is installed on the grate driven shaft 6, and the hydraulic cylinder 7 is connected to a hydraulic oil station system 8 through a high-pressure oil pipe.

[0034] The grate 2 is a scale plate chain grate, with the chains connected by crossbeams and scale plates installed on the crossbeams. The grate reducer is installed on the outside of the grate drive shaft 1 and connected by a coupling to provide the grate power source. The drive shaft rotates to drive the chain and keep the grate running.

[0035] The drive shaft side is the part driven by the reducer. When the grate is running, the tension can only be adjusted on the driven shaft side. Therefore, this utility model is actually a drive shaft side monitoring and driven shaft side tension adjustment.

[0036] The monitoring roller 3 is a structure that can only move up and down and rolls with the running direction of the grate 2. When the grate 2 bulges (or is leveled), the monitoring roller 3 moves up to contact the monitoring probe 4 and continues to move up to contact the limit switch 5 (or falls down to disengage from the limit switch).

[0037] The limit switch 5 is interlocked with the oil pump of the hydraulic oil station system 8; when the grate 2 bulges, the monitoring roller 3 moves upward to trigger the limit switch 5, and the hydraulic oil station system 8 automatically starts the oil pump to pressurize and drive the hydraulic cylinder 7 to adjust the grate tension and maintain a constant pressure.

[0038] The limit switch 5 is interlocked with the oil pump of the hydraulic oil station system 8. When the monitoring roller 3 moves upward and contacts the monitoring probe 4, and continues to move upward and contacts the limit switch 5, the oil pump automatically starts to pressurize and cause the hydraulic cylinder 7 to push out to adjust the grate 2 and maintain the pressure.

[0039] The hydraulic oil station system 8 consists of an oil pump device, an integrated block and control components, an oil tank, etc.

[0040] The hydraulic oil station system 8 is equipped with a gear hydraulic pump, which has the characteristics of small size, light weight, high efficiency and stable pressure.

[0041] The hydraulic cylinder 7 is connected to the hydraulic oil station system 8 via a high-pressure oil pipe. The hydraulic oil station system 8 is equipped with a distribution platform at its outlet to balance the pressure of the oil circuits on both sides and prevent pressure imbalance caused by inconsistent distances between the oil circuits on both sides.

[0042] The hydraulic oil used in the hydraulic oil station system 8 should be high-temperature resistant and wear-resistant hydraulic oil.

[0043] The hydraulic cylinder 7 must be equipped with a cooling water system to prevent the oil temperature from rising due to the high temperature of the grate, which could lead to a safety accident.

[0044] This invention enables automatic monitoring and tension adjustment of grate bulges, effectively reducing the labor intensity of employees and increasing efficiency; the automatic tension adjustment has a fast response speed and high precision.

[0045] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The embodiments and features described in this application can be arbitrarily combined with each other without conflict. The protection scope of this utility model should be defined by the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims.

Claims

1. An automatic grate tensioning adjustment device, characterized in that, include: The grate drive shaft (1) and the grate driven shaft (6). The upper part of the grate drive shaft (1) is provided with a monitoring roller (3) that rolls in the direction of the grate (2) running. The side of the grate driven shaft (6) is connected to the hydraulic cylinder (7) through a pipe; The hydraulic oil station system (8) is connected to the hydraulic cylinder (7) via a high-pressure oil pipe and includes an oil pump device, an integrated oil circuit block, a control module and an oil tank; The grate (2) is a scale plate chain grate. The chains are connected by crossbeams and scale plates are installed on the crossbeams. The grate reducer is installed on the outside of the grate drive shaft (1) and connected by a coupling to provide the grate power source. The drive shaft drives the chain to keep the grate running.

2. The automatic grate tensioning adjustment device according to claim 1, characterized in that, The monitoring roller (3) is a vertically movable structure. A monitoring probe (4) is set above the monitoring roller (3). A limit switch (5) is installed above the monitoring probe (4). The limit switch (5) is installed outside the grate drive shaft (1) to avoid damage from high temperature.

3. The automatic grate tensioning adjustment device according to claim 1, characterized in that, The hydraulic pump device of the hydraulic oil station system (8) is a gear hydraulic pump, and the integrated oil circuit block adopts a modular structure to reduce leakage.

4. The automatic grate tensioning adjustment device according to claim 1, characterized in that, A distribution platform is provided between the hydraulic cylinder (7) and the hydraulic oil station system (8) to balance the pressure of the oil circuits on both sides.

5. The automatic grate tensioning adjustment device according to claim 2, characterized in that, The limit switch (5) is interlocked with the oil pump of the hydraulic oil station system (8); when the grate (2) bulges, the monitoring roller (3) moves up to trigger the limit switch (5), and the hydraulic oil station system (8) automatically starts the oil pump to pressurize, driving the hydraulic cylinder (7) to adjust the grate tension and maintain a constant pressure.

6. The automatic grate tensioning adjustment device according to claim 1, characterized in that, The hydraulic oil station system (8) uses high-temperature resistant and wear-resistant hydraulic oil, and the hydraulic cylinder (7) is equipped with a cooling water system.

7. The automatic grate tensioning adjustment device according to claim 1, characterized in that, One side of the hydraulic cylinder (7) is fixed by a hydraulic cylinder fixing bracket via a pin; the other side of the hydraulic cylinder (7) is fixed by a driven shaft fixing bracket via a pin.

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