A ball mill load detection device
By setting a positioning sleeve and a fixing ring structure on the probe, the problem of inaccurate probe installation is solved, a simple and accurate installation process is achieved, the accuracy of signal acquisition is improved, and the accuracy of grinding sound measurement is ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIDA (CHONGQING) INTELLIGENT EQUIPMENT CO LTD
- Filing Date
- 2025-09-12
- Publication Date
- 2026-06-30
AI Technical Summary
The existing intelligent grinding sound measuring instrument probes are difficult to install with a precise 20mm spacing, which affects the accuracy of signal acquisition.
A ball mill load detection device was designed. By setting a positioning sleeve and a fixing ring structure on the probe, the distance between the probe and the ball mill is accurately adjusted to 20mm. This includes the coordinated use of a positioning rod, a fixing ring, and a magnetic block.
This simplifies and improves the precision of probe installation, enhances signal acquisition accuracy, and ensures the accuracy of grinding sound measurement.
Smart Images
Figure CN224435571U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of grinding sound measuring instruments, specifically a ball mill load detection device. Background Technology
[0002] Ball mills are widely used grinding equipment in industries such as mining and cement. Load monitoring is crucial for optimizing equipment operation and preventing overload or underload conditions. The intelligent grinding sound meter (commonly known as an electric ear) is a specialized device designed specifically for ball mill load monitoring. It accurately captures the sound generated during ball mill operation, especially the specific frequency audio loudness produced by the collision of steel balls, to indirectly deduce the changes in material flow inside the mill, thus accurately reflecting the ball mill's load status. This equipment boasts advantages such as convenient debugging and stable operation, and is therefore widely used for load measurement in various types of ball mills.
[0003] The currently used intelligent grinding noise measuring instrument mainly consists of a mounting bracket, a probe, and a main unit. The probe, as the core of signal acquisition, is responsible for receiving the noise signals generated during ball mill operation and then transmitting the signals to the main unit for processing via a shielded cable. However, the accuracy of grinding noise signal acquisition is affected by the probe's installation position. For example, it needs to be aligned with the center line of the mill and maintain a 20mm distance from the mill. Currently, probe installation generally relies on manual adjustment, but manual operation makes it difficult to accurately guarantee a 20mm distance, which easily leads to errors and affects the accuracy of signal acquisition. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a ball mill load detection device that ensures a precise 20mm spacing between probes during installation, making the installation process simpler and more convenient.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a ball mill load testing device, comprising a measuring instrument main unit, a mounting bracket, and a probe. The detection end of the probe is fitted with a protective shell, and the other end of the probe is fitted with a positioning sleeve. The outer wall of the positioning sleeve has a positioning groove, and a positioning rod fixed to the protective shell is slidably connected inside the positioning groove. The positioning rod is L-shaped. A fixing ring is rotatably connected to the end of the positioning sleeve away from the protective shell. The inner wall of the fixing ring has a through groove that matches the positioning rod. When the through groove and the positioning groove rotate to coincide, a slide is formed for the positioning rod to pass through. The thickness of the end of the positioning rod away from the protective shell is equal to the thickness of the end of the protective shell away from the positioning rod. The sum of the width of the fixing ring, the thickness of the end of the positioning rod, and the thickness of the protective shell is equal to 20mm.
[0006] Furthermore, the positioning sleeve is slidably connected to a plurality of fixing bolts on the side away from the probe, and the fixing bolts pass through the positioning sleeve and are threadedly connected to the probe.
[0007] Furthermore, the positioning sleeve is rotatably connected to an installation ring at one end near the protective shell. The installation ring and the fixed ring have similar structures. Both the inner walls of the installation ring and the fixed ring are provided with through grooves. The outer wall of the positioning sleeve is provided with multiple equally spaced sliding grooves. The inner walls of both the installation ring and the fixed ring are fixed with sliders that match the sliding grooves.
[0008] Furthermore, magnetic blocks are fixed to both sides of the inner wall of the mounting ring and the fixing ring, and the magnetic blocks are attracted to the positioning sleeve.
[0009] Furthermore, multiple levers are fixed to the outer walls of both the mounting ring and the fixing ring, and the multiple levers are distributed at equal intervals.
[0010] Furthermore, a notch matching the mounting bracket is provided at the bottom of the protective shell.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] When installing the probe in this ball mill load testing device, first rotate the fixing ring to align the through groove with the positioning rod. Then, pull the protective shell to move the positioning rod to the side of the fixing ring closer to the protective shell. Next, rotate the fixing ring again to displace the through groove on the fixing ring from the positioning rod. Then, move the protective shell again to make the positioning rod abut against the fixing ring. At this point, simply align the end of the protective shell with the ball mill, and the distance between the probe and the ball mill will perfectly meet the installation requirements, making probe installation simpler and more convenient. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the connection structure between the probe and the protective shell of this utility model;
[0015] Figure 3 This is a schematic diagram of the connection structure between the protective shell and the positioning sleeve of this utility model.
[0016] In the diagram: 1. Measuring instrument main unit; 2. Mounting bracket; 3. Probe; 4. Protective shell; 5. Positioning rod; 6. Positioning sleeve; 7. Fixing bolt; 8. Positioning groove; 9. Slide groove; 10. Mounting ring; 11. Fixing ring; 12. Sliding block; 13. Pulling block; 14. Magnetic block; 15. Through groove. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0018] Please see Figure 1-3 A ball mill load testing device includes a measuring instrument main unit 1, a mounting bracket 2, and a probe 3. The detection end of the probe 3 is fitted with a protective shell 4, and the other end of the probe 3 is fitted with a positioning sleeve 6. The outer wall of the positioning sleeve 6 has a positioning groove 8. The positioning groove 8 is slidably connected to a positioning rod 5 fixed to the protective shell 4. The positioning rod 5 is L-shaped. The end of the positioning sleeve 6 away from the protective shell 4 is rotatably connected to a fixing ring 11. The inner wall of the fixing ring 11 has a through groove 15 that matches the positioning rod 5. When the through groove 15 and the positioning groove 8 rotate and overlap, they form a slide for the positioning rod 5 to pass through. The thickness of the end of the positioning rod 5 away from the protective shell 4 is equal to the thickness of the end of the protective shell 4 away from the positioning rod 5. The sum of the width of the fixing ring 11, the thickness of the end of the positioning rod 5, and the thickness of the protective shell 4 is equal to 20 mm.
[0019] In the ball mill load detection device of this utility model, when installing the probe 3, the fixing ring 11 can be rotated first to align the through groove 15 on the fixing ring 11 with the positioning rod 5. Then, the protective shell 4 can be pulled to move the positioning rod 5 to the side of the fixing ring 11 closer to the protective shell 4 (e.g., Figure 2 (As shown), then rotate the fixing ring 11 again to displace the through groove 15 on the fixing ring 11 from the positioning rod 5. Then move the protective shell 4 again so that the positioning rod 5 abuts against the fixing ring 11. Since the positioning rod 5 abuts against the fixing ring 11 both before and after the movement begins, only the abutting surfaces are different, the moving distance of the positioning rod 5 is the sum of the width of the fixing ring 11 and the thickness of the end of the positioning rod 5. Also, since the thickness of the end of the positioning rod 5 away from the protective shell 4 is equal to the thickness of the end of the protective shell 4 away from the positioning rod 5, and the protective shell 4 before the movement... Because the protective housing 4 fits tightly against the probe 3, after the protective housing 4 moves, the distance between the end of the protective housing 4 and the end of the probe 3 is the sum of the width of the fixing ring 11, the thickness of the protective housing 4, and the thickness of the end of the positioning rod 5, which is 20mm. At this point, simply placing the end of the protective housing 4 against the outer wall of the ball mill will ensure that the distance between the probe 3 and the ball mill perfectly meets the installation requirements, making the installation of the probe 3 simpler and more convenient. Furthermore, since the measuring instrument main unit 1, the mounting bracket 2, and the probe 3 are all existing mature products, they will not be elaborated upon here. The protective housing 4 is made of a non-soundproof material (such as ordinary plastic board, which has a low density and lacks a sound-absorbing layer or sound-insulating structure, allowing sound waves to easily penetrate or reflect), and will not affect the detection of the probe 3.
[0020] like Figure 2 As shown, multiple fixing bolts 7 are slidably connected to the side of the positioning sleeve 6 away from the probe 3. The fixing bolts 7 pass through the positioning sleeve 6 and are threadedly connected to the probe 3.
[0021] Specifically, when it is necessary to disassemble the positioning sleeve 6 and the protective shell 4, simply pull the protective shell 4 out from the end of the probe 3, and then remove the fixing bolt 7 to remove the positioning sleeve 6 from the probe 3. The whole process is relatively simple and convenient.
[0022] like Figure 2 and Figure 3 As shown, the positioning sleeve 6 is rotatably connected to the end near the protective shell 4 with an installation ring 10. The installation ring 10 and the fixing ring 11 have similar structures. The inner walls of the installation ring 10 and the fixing ring 11 are both provided with through grooves 15. The outer wall of the positioning sleeve 6 is provided with multiple equally spaced sliding grooves 9. The inner walls of the installation ring 10 and the fixing ring 11 are both fixed with sliders 12 that match the sliding grooves 9.
[0023] Specifically, the mounting ring 10 can restrict the positioning rod 5 to prevent the protective shell 4 from detaching from the probe 3. When it is necessary to remove the protective shell 4, simply rotate the mounting ring 10 to align the through groove 15 on the mounting ring 10 with the positioning rod 5, and then the protective shell 4 can be pulled out in a direction away from the probe 3. The slider 12 and the slide groove 9 can play a limiting role to prevent the mounting ring 10 and the fixing ring 11 from detaching from the positioning sleeve 6.
[0024] like Figure 3 As shown, magnetic blocks 14 are fixed to both sides of the inner wall of the mounting ring 10 and the fixing ring 11, and the magnetic blocks 14 are attracted to the positioning sleeve 6.
[0025] Specifically, both the mounting ring 10 and the fixing ring 11 are attracted and fixed to the positioning sleeve 6 by magnetic blocks 14, so that the mounting ring 10 and the fixing ring 11 can be fixed in any position. The magnetic blocks 14 are mainly made of neodymium iron boron material, which has the characteristics of high remanence, high coercivity and high magnetic energy product, making the mounting ring 10 and the fixing ring 11 more stable when they are fixed.
[0026] like Figure 3 As shown, multiple levers 13 are fixed to the outer walls of both the mounting ring 10 and the fixing ring 11, and the multiple levers 13 are distributed at equal intervals.
[0027] Specifically, it is simpler and more convenient to rotate the mounting ring 10 and the fixing ring 11 by using the toggle block 13.
[0028] like Figure 3 As shown, the lower part of the protective shell 4 has a notch that matches the mounting bracket 2.
[0029] Specifically, if the protective shell 4 does not have a notch at the bottom, the protective shell 4 can easily collide with the mounting bracket 2, causing damage to the protective shell 4 or the mounting bracket 2.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A ball mill load detection apparatus comprising a measuring instrument main body (1), a mounting bracket (2), and a probe (3), characterized by, The detection end of the probe (3) is fitted with a protective shell (4), and the other end of the probe (3) is fitted with a positioning sleeve (6). The outer wall of the positioning sleeve (6) is provided with a positioning groove (8). The positioning groove (8) is slidably connected to a positioning rod (5) that is fixed to the protective shell (4). The positioning rod (5) is L-shaped. The end of the positioning sleeve (6) away from the protective shell (4) is rotatably connected to a fixing ring (11). The inner wall of the fixing ring (11) is provided with a through groove (15) that matches the positioning rod (5). When the through groove (15) and the positioning groove (8) rotate and overlap, a slide is formed for the positioning rod (5) to pass through. The thickness of the end of the positioning rod (5) away from the protective shell (4) is equal to the thickness of the end of the protective shell (4) away from the positioning rod (5). The sum of the width of the fixing ring (11), the thickness of the end of the positioning rod (5), and the thickness of the protective shell (4) is equal to 20 mm.
2. The ball mill load detection device according to claim 1, characterized in that, The positioning sleeve (6) is slidably connected to a plurality of fixing bolts (7) on the side away from the probe (3), and the fixing bolts (7) are threaded through the positioning sleeve (6) and connected to the probe (3).
3. A ball mill load detection device according to claim 1 or 2, characterized in that, The positioning sleeve (6) is rotatably connected to an installation ring (10) at one end near the protective shell (4). The inner walls of the installation ring (10) and the fixing ring (11) are provided with through grooves (15). The outer wall of the positioning sleeve (6) is provided with multiple equally spaced sliding grooves (9). The inner walls of the installation ring (10) and the fixing ring (11) are fixed with sliders (12) that match the sliding grooves (9).
4. The ball mill load detection device according to claim 3, characterized in that, Both sides of the inner wall of the mounting ring (10) and the fixing ring (11) are fixed with magnetic blocks (14), and the magnetic blocks (14) are attracted to the positioning sleeve (6).
5. The ball mill load detection device according to claim 3, characterized in that, The outer walls of the mounting ring (10) and the fixing ring (11) are both fixed with multiple levers (13), which are distributed at equal intervals.
6. The ball mill load detection device according to claim 4, characterized in that, The outer walls of the mounting ring (10) and the fixing ring (11) are both fixed with multiple levers (13), which are distributed at equal intervals.
7. A ball mill load detection device according to claim 1, 2, 4, 5 or 6, characterized in that, The protective shell (4) has a notch at the bottom that matches the mounting bracket (2).
8. The ball mill load detection device according to claim 3, characterized in that, The protective shell (4) has a notch at the bottom that matches the mounting bracket (2).