A medium speed abrasive layer spring loaded force measuring device

Abstract

The utility model belongs to metallurgical industry technical field especially is a kind of medium-speed abrasive layer spring loading force measuring device, including device main body.The utility model is through in the medium-speed grinding operation process, the extrusion of raw coal is received to mill roller, push extrusion rod moves, and extrusion rod compresses spring by first trapezoidal block, and spring generates reaction force, and this reaction force acts on pressure sensor, and pressure sensor can accurately perceive the pressure applied by spring, and it is converted into electric signal transmission to central control DCS system, by this mode, the visualization of mill real-time production data is realized, and spring force is not needed artificial detection, and maintenance workload is reduced, when the elasticity of spring is adjusted, the gear rotation is driven by the inner tooth ring through the positive rotation rotary cover, the moving ring moves by the screw rod, the second trapezoidal block is driven to slide on loading rod by the square bar, and the movement of the second trapezoidal block will change the initial compression of spring, to be convenient for adjusting according to its needs.

Description

Technical Field

[0001] This utility model relates to the technical field of metallurgical industry, specifically to a device for measuring the spring loading force of a medium-speed abrasive layer. Background Technology

[0002] In the power and metallurgical industries, raw coal enters the vertical mill via a feeder. Driven by a drive unit, the mill disc rotates at high speed, generating a strong centrifugal force. This force causes the raw coal to automatically move towards the edge of the mill disc and smoothly enter the gap between the grinding rollers and the mill disc. At this point, the grinding roller assembly, pushed by the raw coal, is pushed against the force-bearing surface of the spring-loaded device. The spring-loaded device, due to its elastic properties, generates a reaction force opposite to the pressure of the grinding rollers. This reaction force is transmitted through the grinding rollers to the mill disc, causing the grinding rollers and mill disc to grind and pressurize the raw coal between them. During this continuous grinding and pressurizing process, the raw coal is gradually pulverized, ultimately producing pulverized coal that meets the required standards, providing qualified raw materials for subsequent combustion or smelting processes.

[0003] Traditionally, spring force testing in medium-speed mills relies mainly on manual methods. Workers need to periodically use specialized measuring tools, such as spring balances, to check the spring's loading force. This method not only increases maintenance workload, requiring dedicated personnel to perform regular checks, but also makes it difficult to adjust the spring's elasticity according to actual needs, resulting in an unbalanced runout. Over time, the spring's elasticity can become too weak and soft, causing excessive lateral runout and affecting normal operation. Furthermore, it hinders the accurate measurement of spring loading force by pressure sensors. Therefore, we propose a medium-speed abrasive layer spring loading force measuring device to solve these problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a medium-speed abrasive layer spring loading force measuring device, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0008] A medium-speed abrasive layer spring loading force measuring device includes a main body, an extended outer shell connected and fixed to the right side of the main body, a pressing rod inside the main body, an end of the pressing rod extending outside the main body, a loading rod welded to the end of the pressing rod, a first trapezoidal block welded to the pressing rod, a second trapezoidal block slidably sleeved on the loading rod, a pressure sensor on one side of the second trapezoidal block, a spring fixedly connected between the first trapezoidal block and the pressure sensor, the spring movably sleeved on the loading rod, a rotating cover sleeved on the extended outer shell, the left side of the rotating cover rotatably connected to the right side of the main body, two lead screws rotatably connected to the right side of the main body, the two lead screws threaded with the same moving ring, the ends of the lead screws extending to one side of the moving ring and welded with gears, two square rods welded to the left side of the moving ring, the ends of the square rods extending into the main body and fixedly connected to the right side of the second trapezoidal block, an internal gear ring fixedly connected to the inner wall of the rotating cover, the internal gear ring meshing with the gears.

[0009] Furthermore, the right side of the main body of the device is provided with multiple locking grooves in a ring shape, and a rectangular block is welded to the top of the rotating cover.

[0010] Furthermore, the rectangular block is provided with a T-shaped rod, which engages with one of the multiple locking slots.

[0011] Furthermore, a tension spring is welded between one inner wall of the T-shaped rod and one side of the rectangular block, and the tension spring is movably sleeved on the T-shaped rod.

[0012] Furthermore, a sliding hole is provided on the inner left side of the main body of the device, and the main body of the device is slidably connected to the extrusion rod through the sliding hole.

[0013] Furthermore, a guide hole is provided on the rectangular block, and the rectangular block is slidably connected to the T-shaped rod through the guide hole.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a medium-speed abrasive layer spring loading force measuring device, which has the following beneficial effects:

[0016] This invention utilizes the compression action of raw coal on the grinding rollers during the operation of a medium-speed mill. This compression pushes the extrusion rod into the main body of the device, causing the first shaped block on the extrusion rod to move accordingly. This compression compresses the spring, generating a reaction force that acts on a pressure sensor. The pressure sensor accurately senses the pressure applied by the spring and converts it into an electrical signal, which is then transmitted to the central control DCS system. This method enables the visualization of real-time production data of the mill, providing accurate data support for the automated control of the entire pulverizing system. It eliminates the need for manual spring force testing, reducing maintenance workload. When adjusting the spring force, the operator can unlock the rotating cover and rotate it clockwise. The rotating cover drives the gear to rotate via an internal gear ring. The gear drives the moving ring via a lead screw. The moving ring drives the second shaped block to slide on the loading rod via a square rod. The movement of the second shaped block changes the initial compression of the spring, allowing for easy adjustment as needed. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the other side of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the main body of the device of this utility model cut open;

[0020] Figure 4 This is a partial three-dimensional structural diagram of the present invention;

[0021] Figure 5 This is a schematic diagram of the cut-open three-dimensional structure of the rotating cover of this utility model;

[0022] Figure 6 This is a three-dimensional structural diagram of the rotating cover of this utility model cut open on the other side.

[0023] In the diagram: 1. Main body of the device; 2. Extended outer shell; 3. Extrusion rod; 4. Loading rod; 5. First shaped block; 6. Second shaped block; 7. Pressure sensor; 8. Spring; 9. Rotating cover; 10. Lead screw; 11. Moving ring; 12. Gear; 13. Square rod; 14. Internal gear ring; 15. Locking groove; 16. Rectangular block; 17. T-shaped rod; 18. Tension spring; 19. Sliding hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example

[0026] like Figure 1-6 As shown in the figure, an embodiment of the present invention discloses a medium-speed abrasive layer spring loading force measuring device, comprising a device body 1, an extended outer shell 2 connected and fixed to the right side of the device body 1, a pressing rod 3 provided inside the device body 1, the end of the pressing rod 3 extending outside the device body 1, a loading rod 4 welded to the end of the pressing rod 3, a first stepped block 5 welded on the pressing rod 3, a second stepped block 6 slidably sleeved on the loading rod 4, a pressure sensor 7 provided on one side of the second stepped block 6, and a spring 8 fixedly connected between the first stepped block 5 and the pressure sensor 7, the spring 8 being movably sleeved on the loading rod 4. A rotating cover 9 is fitted onto the extended outer shell 2 on the rod 4. The left side of the rotating cover 9 is rotatably connected to the right side of the main body 1. Two lead screws 10 are rotatably connected to the right side of the main body 1. The same moving ring 11 is threaded onto the two lead screws 10. The ends of the lead screws 10 extend to one side of the moving ring 11 and are welded with gears 12. Two square rods 13 are welded to the left side of the moving ring 11. The ends of the square rods 13 extend into the main body 1 and are fixedly connected to the right side of the second platform block 6. An internal gear ring 14 is fixedly connected to the inner wall of the rotating cover 9. The internal gear ring 14 meshes with the gears 12.

[0027] During operation of the medium-speed mill, the grinding rollers are compressed by the raw coal, pushing the extrusion rod 3 into the main body 1 of the device. The first platform block 5 on the extrusion rod 3 moves accordingly, compressing the spring 8. The spring 8 generates a reaction force, which acts on the pressure sensor 7. The pressure sensor 7 can accurately sense the pressure applied by the spring 8 and convert it into an electrical signal. This current signal has advantages such as strong anti-interference ability and long transmission distance, and can stably transmit the information of the spring 8's loading force to the central control DCS system. In this way, the real-time production data of the mill is visualized, and operators can intuitively understand the loading force of the spring 8 in the central control room. The changing conditions provide accurate data support for the automated control of the entire pulverizing system. It eliminates the need for manual detection of the spring force 8, reducing maintenance workload. When it is necessary to adjust the spring force of spring 8 according to the actual production situation, the operator can unlock the rotating cover 9 and rotate it in the forward direction. The rotating cover 9 drives the gear 12 to rotate through the internal gear ring 14. The gear 12 drives the moving ring 11 to move through the lead screw 10. The moving ring 11 drives the second platform block 6 to slide on the loading rod 4 through the square rod 13. The movement of the second platform block 6 will change the initial compression of spring 8, thereby realizing the adjustment of the spring force of spring 8. It is convenient to adjust it as needed. After adjustment, the rotating cover 9 is locked.

[0028] In some embodiments, the right side of the main body 1 of the device is provided with a plurality of locking grooves 15 in an annular shape, the top of the rotating cover 9 is welded with a rectangular block 16, the rectangular block 16 is provided with a T-shaped rod 17, the T-shaped rod 17 is engaged with one of the locking grooves 15, and a tension spring 18 is welded between the inner wall of one side of the T-shaped rod 17 and one side of the rectangular block 16, and the tension spring 18 is movably sleeved on the T-shaped rod 17.

[0029] When the spring force of spring 8 needs to be adjusted again, the operator only needs to pull the T-shaped rod 17 outward to disengage the T-shaped rod 17 from the currently locked slot 15. At this time, the rotating cover 9 is unlocked and can rotate freely. After the adjustment is completed, release the T-shaped rod 17. Under the pulling force of the tension spring 18, the T-shaped rod 17 will automatically engage in the adjacent locking slot 15, locking the rotating cover 9 again to ensure the stability of the spring force setting. When it is necessary to increase the spring force of spring 8, rotate the rotating cover 9 to move the moving ring 11 closer to the spring 8, increasing the compression of the spring 8 and increasing the spring force of spring 8. Conversely, when it is necessary to decrease the spring force of spring 8, simply rotate the rotating cover 9 in the opposite direction.

[0030] In some embodiments, a sliding hole 19 is provided on the inner left side of the device body 1, and the device body 1 is slidably connected to the extrusion rod 3 through the sliding hole 19.

[0031] The extrusion rod 3 is limited by the sliding hole 19, so that the extrusion rod 3 will not be displaced when it moves.

[0032] In some embodiments, a guide hole is provided on the rectangular block 16, and the rectangular block 16 is slidably connected to the T-shaped rod 17 through the guide hole.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A medium-speed abrasive layer spring loading force measuring device, comprising a device body (1), characterized in that: An extended outer shell (2) is connected to and fixed on the right side of the main body (1) of the device. A pressing rod (3) is provided inside the main body (1). The end of the pressing rod (3) extends to the outside of the main body (1). A loading rod (4) is welded to the end of the pressing rod (3). A first trapezoidal block (5) is welded on the pressing rod (3). A second trapezoidal block (6) is slidably sleeved on the loading rod (4). A pressure sensor (7) is provided on one side of the second trapezoidal block (6). A spring (8) is fixedly connected between the first trapezoidal block (5) and the pressure sensor (7). The spring (8) is movably sleeved on the loading rod (4). A rotating cover is sleeved on the extended outer shell (2). 9), the left side of the rotating cover (9) is rotatably connected to the right side of the device body (1), and the right side of the device body (1) is rotatably connected to two lead screws (10). The two lead screws (10) are threaded with the same moving ring (11). The end of the lead screw (10) extends to one side of the moving ring (11) and is welded with a gear (12). The left side of the moving ring (11) is welded with two square rods (13). The end of the square rods (13) extends into the device body (1) and is fixedly connected to the right side of the second platform block (6). An internal gear ring (14) is fixedly connected to the inner wall of the rotating cover (9), and the internal gear ring (14) meshes with the gear (12).

2. The medium-speed abrasive layer spring loading force measuring device according to claim 1, characterized in that: The right side of the main body (1) of the device is provided with multiple locking grooves (15) in a ring shape, and a rectangular block (16) is welded to the top of the rotating cover (9).

3. The medium-speed abrasive layer spring loading force measuring device according to claim 2, characterized in that: The rectangular block (16) is provided with a T-shaped rod (17), which is engaged with one of the locking slots (15) among a plurality of locking slots (15).

4. The medium-speed abrasive layer spring loading force measuring device according to claim 3, characterized in that: A tension spring (18) is welded between one inner wall of the T-shaped rod (17) and one side of the rectangular block (16), and the tension spring (18) is movably sleeved on the T-shaped rod (17).

5. The medium-speed abrasive layer spring loading force measuring device according to claim 4, characterized in that: A sliding hole (19) is provided on the inner left side of the main body (1) of the device, and the main body (1) of the device is slidably connected to the extrusion rod (3) through the sliding hole (19).

6. The medium-speed abrasive layer spring loading force measuring device according to claim 5, characterized in that: The rectangular block (16) has a guide hole, and the rectangular block (16) is slidably connected to the T-shaped rod (17) through the guide hole.

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