A ball mill filling rate measuring device

Abstract

The present invention discloses a ball mill filling rate measuring device, including a positioning detection structure, wherein the positioning detection structure includes a sliding sleeve, wherein a protective structure is arranged inside the sliding sleeve, and the protective structure includes a measuring slide. The ball mill filling rate measuring device, through the arrangement of an inner rotating air cavity and a connecting clamp rod, can compress the gas inside the sliding sleeve through the seal between the lower end of the measuring slide and the inside of the sliding sleeve when the sliding sleeve is retracted to the lower end of the front sliding slot, so that the air flow enters the inner rotating air cavity from the bottom ventilation groove and then sprays out from the inclined air outlet, so that the dust on the lower end of the front sliding slot is cleaned by the air flow, so as to prevent impurities from staying at the lower end of the front sliding slot, so that when the sliding sleeve is fully retracted, the impurities are mixed between the front sliding slot and the zero point positioning ruler, which easily causes damage between the zero point positioning ruler and the front sliding slot.

Description

Technical Field

[0001] The invention relates to the field of ball mills, and more specifically to a device for measuring the filling rate of a ball mill. Background Art

[0002] The ball mill is composed of a horizontal cylinder, a hollow shaft for feeding and discharging materials, and a grinding head. The cylinder is a long cylinder with grinding bodies inside. The cylinder is made of steel plates and fixed to the cylinder by steel linings. The grinding bodies are generally steel balls and are loaded into the cylinder according to different diameters and a certain proportion. The grinding bodies can also be steel segments. The materials are selected according to the particle size of the grinding materials. The materials are loaded into the cylinder through the hollow shaft at the feeding end of the ball mill. When the cylinder of the ball mill rotates, the grinding bodies are attached to the cylinder linings due to inertia, centrifugal force, and friction, and are carried away by the cylinder. When they are brought to a certain height, they are thrown down due to their own gravity. The falling grinding bodies crush the materials in the cylinder like projectiles.

[0003] In the prior art, when the filling rate detection device for a ball mill is folded for use, air pressure is generated between the zero-point positioning ruler and the sheath. During the detection process, impurities will float into the inside of the sheath. When squeezed, the impurities are easily squeezed between the zero-degree positioning ruler and the sheath, causing damage to the zero-degree positioning ruler and the sheath. At the same time, a gap will appear between the zero-point positioning ruler and the sheath, which will reduce the positioning effect of the zero-point positioning ruler in subsequent use, thereby affecting the detection of the filling rate. Summary of the invention

[0004] The technical problem to be solved by the present invention is that when the existing ball mill filling rate detection device is folded for use, air pressure is generated between the two-point positioning ruler and the sheath. During the detection and use process, impurities are easily invaded into the sheath. When squeezed, the impurities are squeezed between the zero-degree positioning ruler and the sheath, causing the zero-degree positioning ruler and the sheath to be squeezed and damaged. At the same time, a gap will appear between the zero-point positioning ruler and the sheath. In subsequent use, the positioning effect of the zero-point positioning ruler is reduced, thereby affecting the detection of the filling rate. In order to overcome the defects of the prior art, the present invention proposes a ball mill filling rate measuring device, which can reduce the influence of impurities on detection.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] The present invention provides a ball mill filling rate measuring device, comprising a positioning detection structure, the positioning detection structure comprising a sliding sleeve, the interior of the sliding sleeve is provided with a protective structure, the protective structure comprises a measuring slide, the measuring slide is slidably clamped in the interior of the sliding sleeve, the interior of the positioning detection structure is provided with a cleaning structure, the cleaning structure comprises an inner sliding clamp rod, the inner sliding clamp rod is fixedly connected to the middle part of the interior of the sliding sleeve, the middle part of the measuring slide is provided with an inner sliding air cavity, the inner sliding clamp rod is slidably clamped in the interior of the inner sliding air cavity, the end of the inner sliding clamp rod is fixedly connected with a sliding end head, and the inner sliding clamp rod is fixedly connected with a sliding end head. The upper end of the measuring slide is fixedly connected with a communicating air port, which is communicated with the inner sliding air cavity. The communicating air port is provided so as to be connected with an air pump when in use, so that the gas in the inner sliding air cavity can be extracted when contracted, so that the sliding end can rise quickly, thereby quickly squeezing the gas at the lower end of the sliding sheath, increasing the flow rate of the air flow, thereby increasing the impact force on impurities, so as to increase the cleaning effect, and at the same time increase the contraction speed of the sliding sheath. The lower end of the sliding sheath is of inclined design, and bottom ventilation grooves are provided on both sides of the lower end of the sliding sheath, and an inner rotating groove is provided on one side of the bottom ventilation groove. The air cavity, the inner rotating air cavity is used in conjunction with the connecting clamp rod, and is used to compress the gas inside the sliding sleeve by measuring the seal between the lower end of the slide ruler and the inside of the sliding sleeve when the sliding sleeve is retracted to the lower end of the front sliding slot, so that the air flow enters the inner rotating air cavity from the bottom ventilation groove and is then ejected from the inclined air outlet, so that the dust on the lower end of the front sliding slot is cleaned by the air flow to prevent impurities from staying at the lower end of the front sliding slot, so that when the sliding sleeve is fully retracted, impurities are mixed between the front sliding slot and the zero point positioning ruler, which is easy to cause damage between the zero point positioning ruler and the front sliding slot. The inner rotating air cavity is located at the sliding sleeve. Inside the two sides of the sheath, a front sliding groove is opened in the middle of the front side of the sliding sheath, and inclined air outlets are opened on both sides of the lower end of the front sliding groove. One side of the inclined air outlet is connected to the inner rotating air cavity, and the inclined air outlet is opened at an angle to blow dust out of the outside of the sliding sheath. Through the inclined design of the lower end of the interior of the sliding sheath, impurities inside the sliding sheath will accumulate at the edge of the lower end of the interior of the sliding sheath, that is, on the side close to the bottom ventilation groove, so that when the sliding sheath is contracted, the device inside the sliding sheath can be sprayed out together with the airflow, so that the interior of the sliding sheath can be cleaned.

[0007] In a preferred technical solution of the present invention, a rubber sealing sleeve is fixed to the outer side of the sliding end, and the rubber sealing sleeve is used to increase the sealing effect between the sliding end and the inner sliding air cavity, thereby reducing the energy consumption of its air pump when driving the sliding sleeve to contract, and at the same time preventing the air flow inside the sliding sleeve from being drawn out, thereby affecting the pressure of the air pressure when the measuring slide is located below the front sliding slot during contraction, so as to ensure the cleaning effect.

[0008] In a preferred technical solution of the present invention, an internal limit block is fixedly connected to the upper middle portion of the front sliding slot, a capacitance grid module is fixedly connected to the upper middle end of one side of the measuring slide, and a zero point positioning scale is fixedly connected to the lower middle portion of one side of the measuring slide. The internal limit block is used to limit the zero point positioning scale to prevent the sliding sleeve from completely detaching from the measuring slide. The capacitance grid module is used for zero point positioning. The capacitance grid module needs to be secondary developed, and calculation formulas corresponding to different types of ball mills are stored. The ball mill model is input during measurement, and the current filling rate is displayed immediately after the measurement is completed.

[0009] In a preferred technical solution of the present invention, a rubber protective sheet is fixedly connected to the lower end of the zero point positioning ruler, and the rubber protective sheet is used to protect the lower end of the zero point positioning ruler to prevent the lower end of the zero point positioning ruler from being damaged by collision.

[0010] In a preferred technical solution of the present invention, the lower end of the sliding sleeve is fixedly connected to a detection base, the lower end of the detection base is fixedly connected to a sliding sleeve, a telescopic slide groove is provided inside the sliding sleeve, an inner slide rod is slidably clamped inside the telescopic slide groove, the lower end of the inner slide rod is fixedly connected to a base probe claw, the base probe claw cooperates with the sliding sleeve, and adopts a telescopic design, which enables the base probe claw to be inserted into the gap between the steel balls, thereby increasing the detection accuracy of the filling rate.

[0011] In a preferred technical solution of the present invention, an elastic protective ring is fixedly connected to the outer edge of the upper end of the base probe claw and the outer edge of the lower end of the sliding sleeve. The elastic protective ring is used to protect the connection between the telescopic slide groove and the inner slide rod. At the same time, the elasticity of the elastic protective ring can drive the base probe claw to reset, thereby further increasing the practicality of the present invention.

[0012] In a preferred technical solution of the present invention, a clamping bottom groove is opened at the lower middle part of the outer surface of the measuring slide, and a rubber sealing ring is fixedly clamped inside the clamping bottom groove, and the rubber sealing ring is used to increase the sealing between the outer side of the measuring slide and the inside of the sliding sheath.

[0013] In a preferred technical solution of the present invention, an upper inclined arc ring is fixedly connected to the upper middle portion of the outer surface of the rubber sealing ring, and a lower inclined arc ring is fixedly connected to the lower middle portion of the outer surface of the rubber sealing ring. The upper inclined arc ring is used to reduce the falling speed of the sliding sleeve when the sliding sleeve slides downward, thereby reducing the impact force on the steel ball when the sliding sleeve falls and contacts the steel ball, thereby preventing the steel ball from moving, so as to further increase the detection accuracy; the lower inclined arc ring is used to scrape and remove dust on the inner wall of the sliding sleeve when the sliding sleeve contracts, thereby increasing the cleanliness of the inner wall of the sliding sleeve to prevent impurities from staying, so that multiple reciprocating movements will cause wear between the inner wall of the sliding sleeve and the outer wall of the measuring slide, thereby reducing the sealing effect and easily causing the connection between the measuring slide and the sliding sleeve to loosen, affecting the normal use of the sliding sleeve.

[0014] In a preferred technical solution of the present invention, a rear sliding slot is provided in the middle of the rear side of the sliding sleeve, and a connecting rod is fixedly connected to the middle of the rear side of the measuring slide. The connecting rod is slidably engaged with the rear sliding slot. The rear sliding slot and the connecting rod are used to limit the position of the sliding sleeve to fix the moving direction of the sliding sleeve, thereby increasing the stability of the sliding sleeve.

[0015] In a preferred technical solution of the present invention, one side of the connecting rod is fixedly connected to a mounting frame, one side of the mounting frame is in contact with the outer surface of the sliding sleeve, and the other side of the mounting frame is higher than one side of the detection base. The mounting frame is used to install the measuring slide inside the ball mill. By fitting one side of the mounting frame with the side of the sliding sleeve, one side of the sliding sleeve can be clamped and limited in position in cooperation with the measuring slide, thereby further increasing the stability of the sliding sleeve.

[0016] The beneficial effects of the present invention are:

[0017] 1. By setting the inner rotating air cavity and the connecting clamp rod, when the sliding sleeve is retracted to the lower end of the front sliding slot, the gas inside the sliding sleeve can be compressed by measuring the seal between the lower end of the sliding ruler and the inside of the sliding sleeve, so that the air flow enters the inner rotating air cavity from the bottom ventilation groove and is ejected from the inclined air outlet, so that the dust on the lower end of the front sliding slot is cleaned by the air flow to prevent impurities from staying at the lower end of the front sliding slot. When the sliding sleeve is fully retracted, impurities are mixed between the front sliding slot and the zero point positioning ruler, which easily causes damage between the zero point positioning ruler and the front sliding slot. The inclined design of the inclined air outlet plays a role in blowing dust out of the outside of the sliding sleeve, and the inclined lower end of the inner part of the sliding sleeve is used. The inclined design allows the impurities inside the sliding sheath to accumulate at the edge of the lower end of the sliding sheath, that is, the side close to the bottom ventilation groove, so that when it is contracted, the device inside the sliding sheath can be ejected together with the airflow, so that the inside of the sliding sheath can be cleaned, thereby increasing the practicality of the present invention. The connecting air port is provided to connect with the air pump when in use, so that when it is contracted, the gas in the inner sliding air cavity can be extracted, so that the sliding end head rises quickly, thereby quickly squeezing the gas at the lower end of the sliding sheath, increasing the flow rate of the airflow, thereby increasing the impact force on the impurities, thereby increasing the cleaning effect, and at the same time increasing the contraction speed of the sliding sheath, so that the present invention has high practicality;

[0018] 2. Through the setting of the base probe claw, combined with the sliding sleeve and the telescopic design, the base probe claw can be inserted into the gap between the steel balls, thereby increasing the accuracy of filling rate detection;

[0019] 3. The elastic guard ring is used to protect the connection between the telescopic slide groove and the inner slide rod. At the same time, the elasticity of the elastic guard ring can drive the base claw to reset, thereby further increasing the practicality of the present invention;

[0020] 4. The setting of the upper inclined arc ring is used to reduce the falling speed of the sliding sleeve when the sliding sleeve slides downward, thereby reducing the impact force on the steel ball when the sliding sleeve falls and contacts the steel ball, thereby preventing the steel ball from moving, so as to further increase the detection accuracy. The setting of the lower inclined arc ring is used to scrape and remove the dust on the inner wall of the sliding sleeve when the sliding sleeve contracts, thereby increasing the cleanliness of the inner wall of the sliding sleeve to prevent impurities from staying, so that the inner wall of the sliding sleeve and the outer wall of the measuring slide will be worn during multiple reciprocating movements, thereby reducing the sealing effect and easily causing the connection between the measuring slide and the sliding sleeve to loosen, affecting the normal use of the sliding sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a ball mill filling rate measuring device according to the present invention;

[0022] Figure 2 It is a three-dimensional schematic diagram of the exploded structure of a ball mill filling rate measuring device of the present invention;

[0023] Figure 3 for Figure 2 A schematic diagram of the three-dimensional structure of the inner structure of the middle sliding sheath;

[0024] Figure 4 for Figure 2 A schematic diagram of the horizontal cross-section of the three-dimensional structure of the middle sliding sheath;

[0025] Figure 5 for Figure 2 A schematic diagram of the vertical section of the measuring slide;

[0026] Figure 6 for Figure 2 Schematic diagram of the three-dimensional structure of the rubber sealing ring;

[0027] Figure 7 for Figure 2 Schematic diagram of the enlarged structure of area A in the middle.

[0028] In the figure:

[0029] 1-positioning detection structure, 11-sliding sleeve, 12-detection base, 13-sliding card sleeve, 14-elastic guard ring, 15-base probe claw, 16-grid module, 17-inner limit card block, 18-rear sliding card slot, 19-inner slide rod, 110-telescopic slide slot, 2-protection structure, 21-measuring slide ruler, 22-zero point positioning ruler, 23-rubber protection sheet, 24-card bottom groove, 25-rubber sealing ring, 26-mounting frame, 27-connecting card rod, 28-upper inclined arc ring, 29-lower inclined arc ring, 3-cleaning structure, 31-inner sliding card rod, 32-sliding end, 33-rubber sealing sleeve, 34-connecting air port, 35-inner rotating air cavity, 36-bottom ventilation groove, 37-inclined air outlet, 38-inner sliding air cavity, 39-front sliding card slot. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0031] like Figure 1-5 As shown, in the embodiment, a ball mill filling rate measuring device is provided, including a positioning detection structure 1, the positioning detection structure 1 includes a sliding sleeve 11, the interior of the sliding sleeve 11 is provided with a protective structure 2, the protective structure 2 includes a measuring slide 21, the measuring slide 21 is slidably clamped in the interior of the sliding sleeve 11, the interior of the positioning detection structure 1 is provided with a cleaning structure 3, the cleaning structure 3 includes an inner sliding clamp rod 31, the inner sliding clamp rod 31 is fixedly connected to the middle part of the interior of the sliding sleeve 11, the middle part of the measuring slide 21 is provided with an inner sliding air cavity 38, the inner sliding clamp rod 31 is slidably clamped in the interior of the inner sliding air cavity 38, and the end of the inner sliding clamp rod 31 A sliding end 32 is fixedly connected to the top of the measuring slide 21, and a connecting air port 34 is fixedly connected to the upper end of the measuring slide 21, and the connecting air port 34 is connected to the inner sliding air cavity 38. The lower end of the sliding sheath 11 is inclined, and bottom ventilation grooves 36 are provided on both sides of the lower end of the sliding sheath 11, and an inner rotating air cavity 35 is provided on one side of the bottom ventilation groove 36. The inner rotating air cavity 35 is located inside the two sides of the sliding sheath 11, and a front sliding groove 39 is provided in the middle of the front side of the sliding sheath 11, and inclined air outlets 37 are provided on both sides of the lower end of the front sliding groove 39, and one side of the inclined air outlet 37 is connected with the inner rotating air cavity 35, and the inclined air outlet 37 is opened at an angle.

[0032] The working principle of this embodiment is as follows: by setting the inner rotating air cavity 35 and the connecting clamp rod 27, when the sliding cover 11 is retracted to the lower end of the front sliding groove 39, the gas inside the sliding cover 11 can be compressed by measuring the seal between the lower end of the slide ruler 21 and the inside of the sliding cover 11, so that the air flow enters the inner rotating air cavity 35 from the bottom ventilation groove 36 and then sprays out from the inclined air outlet 37, so that the dust on the lower end of the front sliding groove 39 is cleaned by the air flow to prevent impurities from staying at the lower end of the front sliding groove 39. When the sliding cover 11 is fully retracted, impurities are mixed between the front sliding groove 39 and the zero point positioning ruler 22, which is easy to cause damage between the zero point positioning ruler 22 and the front sliding groove 39. The inclined design of the inclined air outlet 37 plays a role in blowing dust out of the outer side of the sliding cover 11. Through the inclined design of the lower end of the sliding sheath 11, the impurities inside the sliding sheath 11 will accumulate at the edge of the lower end of the sliding sheath 11, that is, on the side close to the bottom ventilation groove 36, so that when it is contracted, the device inside the sliding sheath 11 can be ejected together with the airflow, so that the inside of the sliding sheath 11 can be cleaned, so as to increase the practicality of the present invention. Through the setting of the connecting air port 34, it is used to connect with the air pump when in use, so that when it is contracted, the gas in the inner sliding air cavity 38 can be extracted, so that the sliding end 32 rises quickly, thereby quickly squeezing the gas at the lower end of the sliding sheath 11, increasing the flow rate of the airflow, thereby increasing the impact force on the impurities, so as to increase the cleaning effect, and at the same time can increase the contraction speed of the sliding sheath 11, so that the present invention has high practicality;

[0033] like Figure 2-Figure 3 As shown, a rubber sealing sleeve 33 is fixed to the outer side of the sliding end 32, and the rubber sealing sleeve 33 is used to increase the sealing effect between the sliding end 32 and the inner sliding air cavity 38, thereby reducing the energy consumption of the air pump when driving the sliding sheath 11 to contract, and at the same time preventing the air flow inside the sliding sheath 11 from being drawn out, thereby affecting the pressure of the air pressure when the measuring slide 21 is located below the front sliding slot 39 during contraction, so as to ensure the cleaning effect;

[0034] like Figure 1-Figure 2 As shown, an inner limit block 17 is fixedly connected to the upper middle part of the front sliding slot 39, a capacity grid module 16 is fixedly connected to the upper middle end of one side of the measuring slide 21, and a zero point positioning ruler 22 is fixedly connected to the lower middle part of one side of the measuring slide 21. The inner limit block 17 is used to limit the zero point positioning ruler 22 to prevent the sliding sleeve 11 from completely separating from the measuring slide 21. The capacity grid module 16 is used for zero point positioning. The capacity grid module 16 needs to be secondary developed, and the calculation formulas corresponding to different types of ball mills are stored. The ball mill model is input during measurement, and the current filling rate is displayed immediately after the measurement is completed.

[0035] like Figure 1-Figure 2As shown, a rubber protective sheet 23 is fixedly connected to the lower end of the zero point positioning ruler 22, and the rubber protective sheet 23 is used to protect the lower end of the zero point positioning ruler 22 to prevent the lower end of the zero point positioning ruler 22 from being damaged by collision;

[0036] like Figure 1-Figure 3 as well as Figure 7 As shown, the lower end of the sliding sheath 11 is fixedly connected with a detection base 12, the lower end of the detection base 12 is fixedly connected with a sliding sleeve 13, a telescopic slide groove 110 is provided inside the sliding sleeve 13, an inner slide rod 19 is slidably connected inside the telescopic slide groove 110, and a base probe claw 15 is fixedly connected to the lower end of the inner slide rod 19. By setting the base probe claw 15 and cooperating with the sliding sleeve 13, a telescopic design is adopted, so that the base probe claw 15 can be inserted into the gap between the steel balls, thereby increasing the detection accuracy of the filling rate;

[0037] like Figure 1 As shown, an elastic retainer 14 is fixedly connected to the outer edge of the upper end of the base probe claw 15 and the outer edge of the lower end of the sliding sleeve 13. The elastic retainer 14 is used to protect the connection between the telescopic slide groove 110 and the inner slide rod 19. At the same time, the elasticity of the elastic retainer 14 can drive the base probe claw 15 to reset, thereby further increasing the practicality of the present invention;

[0038] like Figure 2 and Figure 5-Figure 6 As shown, a clamping bottom groove 24 is provided at the lower middle of the outer surface of the measuring slide 21, and a rubber sealing ring 25 is fixedly clamped inside the clamping bottom groove 24. The rubber sealing ring 25 is provided to increase the sealing performance between the outer side of the measuring slide 21 and the inner side of the sliding sheath 11;

[0039] like Figure 6 As shown, an upper inclined arc ring 28 is fixedly connected to the upper middle part of the outer surface of the rubber sealing ring 25, and a lower inclined arc ring 29 is fixedly connected to the lower middle part of the outer surface of the rubber sealing ring 25. The upper inclined arc ring 28 is provided to reduce the falling speed of the sliding sleeve 11 when the sliding sleeve 11 slides downward, thereby reducing the impact force on the steel ball when the sliding sleeve 11 falls and contacts the steel ball, thereby preventing the steel ball from moving, so as to further increase the detection accuracy. The lower inclined arc ring 29 is provided to scrape and remove the dust on the inner wall of the sliding sleeve 11 when the sliding sleeve 11 contracts, thereby increasing the cleaning of the inner wall of the sliding sleeve 11 to prevent impurities from staying, so that when the sliding sleeve 11 is reciprocated for many times, the inner wall of the sliding sleeve 11 and the outer wall of the measuring slide 21 will be worn, thereby reducing the sealing effect, and easily causing the connection between the measuring slide 21 and the sliding sleeve 11 to become loose, affecting the normal use of the sliding sleeve 11;

[0040] like Figure 5As shown, a rear sliding groove 18 is provided in the middle of the rear side of the sliding sheath 11, and a connecting rod 27 is fixedly connected to the middle of the rear side of the measuring slide 21. The connecting rod 27 is slidably engaged with the rear sliding groove 18. The rear sliding groove 18 and the connecting rod 27 are arranged to further limit the position of the sliding sheath 11, so that the moving direction of the sliding sheath 11 is fixed, thereby increasing the stability of the sliding sheath 11.

[0041] like Figure 1-2 and Figure 5 As shown, one side of the connecting rod 27 is fixedly connected to a mounting bracket 26, one side of the mounting bracket 26 is in contact with the outer surface of the sliding sleeve 11, and the other side of the mounting bracket 26 is higher than one side of the detection base 12. The mounting bracket 26 is provided to install the measuring slide 21 inside the ball mill. By the contact between one side of the mounting bracket 26 and the side of the sliding sleeve 11, one side of the sliding sleeve 11 can be clamped and limited in position in cooperation with the measuring slide 21, thereby further increasing the stability of the sliding sleeve 11.

[0042] Working principle: When in use, connect the air port 34 to the air pump, then install the mounting frame 26 inside the ball mill, then use the zero point positioning ruler 22 to locate the zero point, and then release the gas from the air pump to cause the sliding sleeve 11 to fall and move. Through the inclination of the inner sliding air cavity 38, it scrapes against the inner wall of the sliding sleeve 11, thereby reducing the falling speed of the sliding sleeve 11 and preventing the steel ball from being impacted and moved. When it contacts the steel ball, the base probe claw 15 is inserted into the gap between the steel balls and passes through the capacity grid. The module 16 detects the falling distance of the sliding cover 11, calculates the filling filter, and transmits it to the display screen for display. When the sliding cover 11 contracts, the air pump extracts gas to drive the sliding end 32 to move upward, so that the sliding cover 11 is retracted, and the elasticity of the elastic retainer 14 is used to push the base claw 15 to reset, while protecting the connection between the telescopic slide 110 and the inner slide rod 19 to prevent dust from entering, so as to ensure the normal extension and contraction of the base claw 15. The scraping is used to scrape off the dust on the inner wall of the sliding cover 11. The fallen dust falls on the bottom of the inclined lower end of the sliding cover 11, that is, the position close to the bottom ventilation groove 36. When the lower end of the measuring slide 21 moves to the lower end of the front sliding groove 39, a seal is formed between the inside of the sliding cover 11 and the lower end of the measuring slide 21, so that the gas inside the sliding cover 11 is squeezed, so that the air flow enters the inner rotating air cavity 35 from the bottom ventilation groove 36, and then sprays out from the inclined air outlet 37, and at the same time The flow of air moves the dust at the lower end of the sliding sleeve 11 and ejects it from the inclined air outlet 37, thereby blowing away the dust at the lower end of the front sliding slot 39 to prevent the dust and impurities from squeezing the zero point positioning ruler 22 and the front sliding slot 39 and causing damage. When the lower end of the zero point positioning ruler 22 contacts the lower end of the front sliding slot 39, the rubber protective sheet 23 provides buffer protection for the lower end of the zero point positioning ruler 22, thereby further protecting the zero point positioning ruler 22 to complete the detection.

[0043] Other technologies of this embodiment adopt existing technologies.

[0044] The present invention is described by preferred embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein, and other embodiments falling within the claims of this application are within the scope of protection of the present invention.

Claims

1. A ball mill filling rate measuring device, comprising a positioning detection structure (1), characterized in that: The positioning detection structure (1) comprises a sliding sheath (11), a protective structure (2) is arranged inside the sliding sheath (11), the protective structure (2) comprises a measuring slide (21), the measuring slide (21) is slidably engaged inside the sliding sheath (11), the interior of the positioning detection structure (1) is provided with a cleaning structure (3), the cleaning structure (3) comprises an inner sliding clamp rod (31), the inner sliding clamp rod (31) is fixedly connected to the middle part of the sliding sheath (11), an inner sliding air cavity (38) is opened in the middle part of the measuring slide (21), the inner sliding clamp rod (31) is slidably engaged inside the inner sliding air cavity (38), the end of the inner sliding clamp rod (31) is fixedly connected to a sliding end head (32), the The upper end of the measuring slide (21) is fixedly connected with a communicating air port (34), and the communicating air port (34) is communicated with the inner sliding air cavity (38). The lower end of the sliding sleeve (11) is designed to be inclined. Both sides of the lower end of the sliding sleeve (11) are provided with bottom ventilation grooves (36), and one side of the bottom ventilation groove (36) is provided with an inner rotating air cavity (35). The inner rotating air cavity (35) is located inside both sides of the sliding sleeve (11). A front sliding groove (39) is provided in the middle of the front side of the sliding sleeve (11), and both sides of the lower end of the front sliding groove (39) are provided with inclined air outlets (37). One side of the inclined air outlet (37) is communicated with the inner rotating air cavity (35), and the inclined air outlet (37) is opened in an inclined manner.

2. A ball mill filling rate measuring device according to claim 1, characterized in that: A rubber sealing sleeve (33) is sleeved and fixed on the outer side of the sliding end head (32).

3. A ball mill filling rate measuring device according to claim 1, characterized in that: An inner limit block (17) is fixedly connected to the upper middle portion of the front slide slot (39), a capacitive grid module (16) is fixedly connected to the upper middle portion of one side of the measuring slide (21), and a zero point positioning ruler (22) is fixedly connected to the lower middle portion of one side of the measuring slide (21).

4. A ball mill filling rate measuring device according to claim 3, characterized in that: The lower end of the zero point positioning ruler (22) is fixedly connected with a rubber protection sheet (23).

5. A ball mill filling rate measuring device according to claim 1, characterized in that: The lower end of the sliding sleeve (11) is fixedly connected to a detection base (12), the lower end of the detection base (12) is fixedly connected to a sliding sleeve (13), a telescopic sliding groove (110) is provided inside the sliding sleeve (13), an inner sliding rod (19) is slidably engaged inside the telescopic sliding groove (110), and the lower end of the inner sliding rod (19) is fixedly connected to a base detection claw (15).

6. A ball mill filling rate measuring device according to claim 5, characterized in that: An elastic protective ring (14) is fixedly connected at the outer edge of the upper end of the base probe claw (15) and the outer edge of the lower end of the sliding sleeve (13).

7. A ball mill filling rate measuring device according to claim 1, characterized in that: A clamping bottom groove (24) is provided at the lower middle portion of the outer surface of the measuring slide rule (21), and a rubber sealing ring (25) is fixedly clamped inside the clamping bottom groove (24).

8. A ball mill filling rate measuring device according to claim 7, characterized in that: An upper inclined arc ring (28) is fixedly connected to the upper middle portion of the outer surface of the rubber sealing ring (25), and a lower inclined arc ring (29) is fixedly connected to the lower middle portion of the outer surface of the rubber sealing ring (25).

9. A ball mill filling rate measuring device according to claim 1, characterized in that: A rear sliding groove (18) is provided in the middle of the rear side of the sliding sleeve (11), and a connecting rod (27) is fixedly connected to the middle of the rear side of the measuring slide ruler (21), and the connecting rod (27) is slidably engaged with the rear sliding groove (18).

10. A ball mill filling rate measuring device according to claim 9, characterized in that: One side of the connecting rod (27) is fixedly connected to a mounting frame (26), one side of the mounting frame (26) is in contact with the outer surface of the sliding sleeve (11), and the other side of the mounting frame (26) is higher than a side surface of the detection base (12).

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