Modular coal mill big gear ring oil leakage prevention device

Abstract

The utility model relates to mechanical equipment sealing protection technical field especially, more particularly to a modular coal mill gear ring oil leakage prevention device. The utility model provides such a modular coal mill gear ring oil leakage prevention device, including sealed lower box, gear, coal mill gear ring and coal mill cylinder etc.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment sealing and protection technology, and in particular to a modular coal mill large gear ring oil leakage prevention device. Background Technology

[0002] In industrial settings such as thermal power plants and cement production lines, coal mills are key equipment, and their operational stability directly affects the production efficiency and operational safety of the entire system. The large gear ring of the coal mill, as the core component of the transmission system, is usually driven by a small gear. The meshing parts of the two need to be continuously supplied with a large amount of lubricating oil to achieve functions such as friction reduction, heat dissipation and rust prevention, and to ensure the normal operation of the equipment.

[0003] However, in actual operation, due to the centrifugal force generated by the high-speed rotation of the large gear ring, the lubricating oil is easily thrown out from the meshing surface or connection part and leaks. Such leakage not only wastes the lubricating oil, but may also pollute the surrounding equipment and working environment, and even cause serious failures such as equipment overheating, lubrication failure, and gear jamming, thereby affecting the continuous and stable operation of the entire production line.

[0004] Therefore, it is necessary to design a modular coal mill large gear ring oil leakage prevention device. Utility Model Content

[0005] To overcome the drawback of the lubricating oil leaking out due to the centrifugal force generated by the huge rotational motion of the large gear ring at high speed, this utility model provides a modular coal mill large gear ring oil leakage prevention device.

[0006] The technical solution is as follows: A modular coal mill gear ring oil leakage prevention device includes a sealed lower housing, gears, a coal mill gear ring, a coal mill cylinder, a sealed upper housing, a mounting plate, a motor, a controller, a sealing strip, a clamping mechanism, and a temperature monitor. The gears and coal mill gear ring are rotatably connected inside the sealed lower housing. The gears are located on the left side of the coal mill gear ring and mesh with each other. The coal mill cylinder is installed on the upper part of the coal mill gear ring, and the coal mill cylinder is also rotatably connected to the sealed lower housing. A sealed upper housing is located on the upper part of the sealed lower housing. A mounting plate is threaded between the external connections of the two sealed housings. A motor is installed on the upper part of the sealed upper housing, and the lower output shaft of the motor is connected to the gear shaft. A controller is located on the upper part of the sealed upper housing. A sealing strip is embedded and snapped between the internal connections of the sealed lower housing and the sealed upper housing. A temperature monitor is installed on the left side inside the sealed lower housing. Multiple clamping mechanisms are located on the upper part of the sealed upper housing. The controller is electrically connected to the motor and the temperature monitor.

[0007] Optionally, the clamping mechanism includes push rods and elastic elements. Several push rods are slidably connected to the upper part of the sealing upper housing. The push rods are located on the upper side of the sealing strip and abut against the sealing strip. Elastic elements are connected between the push rods and the sealing upper housing.

[0008] Optionally, it also includes a lubrication pump and a distributor. The lubrication pump is installed on the upper part of the sealed upper housing, and the lubrication pump is connected to the interior of the sealed lower housing. The lubrication pump is located above the meshing point of the gear and the coal mill gear ring. The distributor is installed on the lubrication pump and is electrically connected to the controller.

[0009] Optionally, it also includes a sealing layer, which is fixed to the right side of the sealing upper housing. The inner ring of the sealing layer is provided with multi-stage stepped guide grooves, each of which has multiple openings. The inner ring of the sealing layer is in close contact with the outer wall of the coal mill cylinder.

[0010] Optionally, it also includes foot pads, with multiple foot pads provided on the bottom of the sealed lower housing.

[0011] Optionally, the sealing strip is made of nitrile rubber.

[0012] Beneficial effects:

[0013] This utility model features a sealed cavity structure consisting of a lower and upper sealed housing, combined with key components such as a sealing strip and a pressing mechanism. This structure tightly fits the sealing housing connection surface, effectively blocking the leakage path of lubricating oil. Furthermore, with the cooperation of the top rod and the elastic element, the sealing performance is further ensured, preventing lubricating oil leakage. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is an exploded view of the sealed lower housing, mounting plate, motor, and other components of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the sealing strip, top rod, and elastic element of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the lubrication pump, distributor, and controller components of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the coal mill tooth ring and sealing layer components of this utility model.

[0019] Figure 6 This is a cross-sectional view of the sealing layer component of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1: Sealed lower housing, 2: Gear, 3: Coal mill gear ring, 301: Coal mill cylinder, 4: Sealed upper housing, 5: Mounting plate, 6: Motor, 7: Controller, 8: Sealing strip, 9: Top rod, 10: Elastic element, 11: Temperature monitor, 12: Lubrication pump, 13: Distributor, 14: Sealing layer, 101: Foot pad. Detailed Implementation

[0021] Example: A modular coal mill large gear ring oil leakage prevention device, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the device includes a sealed lower housing 1, a gear 2, a coal mill gear ring 3, a coal mill cylinder 301, a sealed upper housing 4, a mounting plate 5, a motor 6, a controller 7, a sealing strip 8, a clamping mechanism, and a temperature monitor 11. The gear 2 and the coal mill gear ring 3 are rotatably connected inside the sealed lower housing 1. The gear 2 is located on the left side of the coal mill gear ring 3, and the two mesh with each other. The coal mill cylinder 301 is mounted on the upper part of the coal mill gear ring 3, and the coal mill cylinder 301 is also rotatably connected to the sealed lower housing 1. The upper part of the sealed lower housing 1 is equipped with... The system includes a sealed upper housing 4, with a mounting plate 5 threaded between the external connections of the two sealed housings. A motor 6 is bolted to the upper part of the sealed upper housing 4, and the lower output shaft of the motor 6 is connected to the shaft of the gear 2. A controller 7 is located on the upper part of the sealed upper housing 4. A sealing strip 8 is embedded and snapped between the sealed lower housing 1 and the internal connection of the sealed upper housing 4. The sealing strip 8 is made of nitrile rubber, suitable for sealing oil media, and is relatively inexpensive, while also being able to accommodate a certain degree of deformation and displacement. A temperature monitor 11 is installed on the left side inside the sealed lower housing 1. The upper part of the sealed upper housing 4 has multiple clamping mechanisms, all of which are electrically connected to the motor 6 and the temperature monitor 11.

[0022] like Figure 2 , Figure 3 and Figure 4 As shown, the clamping mechanism includes a push rod 9 and an elastic element 10. Several push rods 9 are slidably connected to the upper part of the sealing upper housing 4. The push rods 9 are located on the upper side of the sealing strip 8 and abut against the sealing strip 8. An elastic element 10 is connected between the push rod 9 and the sealing upper housing 4. The elastic element 10 is a spring and is initially compressed.

[0023] like Figure 1 and Figure 4 As shown, it also includes a lubrication pump 12 and a distributor 13. The lubrication pump 12 is installed on the upper part of the sealed upper housing 4. The lubrication pump 12 is connected to the interior of the sealed lower housing 1 and is located above the meshing point of the gear 2 and the coal mill gear ring 3. The distributor 13 is installed on the lubrication pump 12 and is electrically connected to the controller 7.

[0024] like Figure 4 , Figure 5 and Figure 6As shown, it also includes a sealing layer 14. The sealing layer 14 is fixedly connected to the right side of the sealing upper box 4. The inner ring of the sealing layer 14 is provided with multi-level stepped guide grooves. Multiple openings are provided inside the guide grooves, and the inner ring of the sealing layer 14 is in close contact with the outer wall of the coal mill cylinder 301.

[0025] like Figure 1 and Figure 2 As shown, it also includes foot pads 101. Multiple foot pads 101 are provided at the bottom of the sealed lower housing 1 to reduce shock, prevent slipping, and level the equipment, thereby improving the stability of the equipment operation.

[0026] In actual use, the operator installs the coal mill gear ring 3 inside the sealed lower housing 1, and makes it mesh with the gear 2 on the left side. The coal mill cylinder 301 is fixedly connected to the upper part of the coal mill gear ring 3, and the coal mill cylinder 301 is also rotatably connected to the sealed lower housing 1 to ensure stable rotation during operation. Then, the sealing strip 8 is embedded in the connection gap between the sealed upper housing 4 and the sealed lower housing 1. The sealing strip 8 is made of nitrile rubber, which has good elasticity and oil resistance, and can effectively seal the gap between the two housings to prevent lubricating oil from leaking from the meshing part. Then, the sealed upper housing 4 is threadedly installed above the sealed lower housing 1 through the mounting plate 5, so that a closed sealed cavity structure is formed between the upper and lower housings. At the same time, the multiple push rods 9 on the upper part of the sealed upper housing 4 continuously apply pressure to the sealing strip 8 under the action of the elastic element 10 (in a compressed state), thereby compensating for the gap changes caused by vibration or thermal expansion and contraction, and further improving the stability and reliability of the sealing structure.

[0027] Furthermore, the operator continuously supplies oil to the meshing area of ​​the gear 2 and the coal mill gear ring 3 through the lubrication pump 12 and the distributor 13. The controller 7 also intelligently controls the start and stop of the lubrication pump 12 and the oil supply rhythm of the distributor 13 according to the equipment operating status, so as to achieve precise oil supply to each lubrication point, ensure sufficient and even lubrication, and avoid wear aggravation due to insufficient lubrication or oil accumulation and overflow due to excessive lubrication. To prevent the lubricating oil from being thrown out by centrifugal force and leaking along the edge of the coal mill cylinder 301 during high-speed rotation, a sealing layer 14 is fixed to the right side of the sealing upper housing 4. The sealing layer 14 is tightly attached to the outer wall of the coal mill cylinder 301, and the inner ring of the sealing layer 14 is provided with multi-stage stepped guide grooves. When the lubricating oil splashes outward, it will enter the guide grooves along the inner wall of the sealing layer 14. Multiple return holes are opened at the bottom of the guide grooves to guide the lubricating oil back into the sealed cavity for circulation, effectively preventing oil leakage and environmental pollution.

[0028] In addition, the temperature monitor 11 is installed on the left side inside the sealed lower housing 1 to collect temperature data in the sealed cavity in real time and feed the signal back to the controller 7. When the temperature rises abnormally, the controller 7 can automatically trigger the alarm mechanism and link to execute the shutdown protection program to prevent lubrication failure or aging of sealing materials caused by high temperature, and ensure the safe operation of the system.

Claims

1. A modular coal mill big gear ring oil leakage prevention device, characterized in that, The system includes a sealed lower housing (1), a gear (2), a coal mill gear ring (3), a coal mill cylinder (301), a sealed upper housing (4), a mounting plate (5), a motor (6), a controller (7), a sealing strip (8), a clamping mechanism, and a temperature monitor (11). The sealed lower housing (1) is rotatably connected to both the gear (2) and the coal mill gear ring (3). The gear (2) is located on the left side of the coal mill gear ring (3), and the two mesh with each other. A coal mill cylinder (301) is mounted on the upper part of the coal mill gear ring (3), and the coal mill cylinder (301) is also rotatably connected to the sealed lower housing (1). The upper part of the sealed lower housing (1) is equipped with a sealing strip. The upper housing (4) is sealed, and an installation plate (5) is threaded between the external connection of the two sealed housings. A motor (6) is installed on the upper part of the upper sealed housing (4). The lower output shaft of the motor (6) is connected to the shaft of the gear (2). A controller (7) is provided on the upper part of the upper sealed housing (4). A sealing strip (8) is embedded and snapped between the lower sealed housing (1) and the upper sealed housing (4). A temperature monitor (11) is installed on the left side inside the lower sealed housing (1). Multiple pressing mechanisms are provided on the upper part of the upper sealed housing (4). The controller (7) is electrically connected to the motor (6) and the temperature monitor (11).

2. The modular coal mill big gear ring oil leakage prevention device according to claim 1, characterized in that, The clamping mechanism includes a push rod (9) and an elastic element (10). Several push rods (9) are slidably connected to the upper part of the sealing upper box (4). The push rods (9) are located on the upper side of the sealing strip (8) and abut against the sealing strip (8). An elastic element (10) is connected between the push rods (9) and the sealing upper box (4).

3. The modular coal mill big gear ring oil leakage prevention device according to claim 2, characterized in that, It also includes a lubrication pump (12) and a distributor (13). The lubrication pump (12) is installed on the upper part of the sealed upper housing (4). The lubrication pump (12) is connected to the interior of the sealed lower housing (1). The lubrication pump (12) is located above the meshing point of the gear (2) and the coal mill gear ring (3). The distributor (13) is installed on the lubrication pump (12). The distributor (13) is electrically connected to the controller (7).

4. The modular coal mill big gear ring oil leakage prevention device according to claim 3, characterized in that, It also includes a sealing layer (14), which is fixed to the right side of the sealing upper box (4). The inner ring of the sealing layer (14) is provided with a multi-level stepped guide groove, and multiple openings are provided inside the guide groove. The inner ring of the sealing layer (14) is in close contact with the outer wall of the coal mill cylinder (301).

5. The modular coal mill big gear ring oil leakage prevention device according to claim 4, characterized in that, It also includes foot pads (101), and the bottom of the sealed lower box (1) is provided with multiple foot pads (101).

6. The modular coal mill big gear ring oil leakage prevention device according to claim 5, characterized in that, The sealing strip (8) is made of nitrile rubber.

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