Sand making machine with service life monitoring function

Abstract

The invention provides a sand making machine with a service life monitoring function, and belongs to the field of sand making machines.The sand making machine comprises a lower machine body, a main shaft system, a rotor, a crushing cavity, an upper impact plate assembly, a discharging device, an upper machine body, service life monitoring devices, a motor and a peripheral protection plate assembly; therefore, the residual life of the peripheral guard plate of the sand making machine is monitored, the maintenance cost of the equipment is reduced, and the safe and stable operation of the equipment is ensured.

Description

Technical Field

[0001] The present invention relates to the field of sand making machines, and in particular to a sand making machine with a life monitoring function. Background Art

[0002] Sand making machine is a kind of equipment used to crush large pieces of materials into sand particles. It is widely used in medium and fine crushing of various hard and brittle materials such as various rocks, abrasives, and refractory materials. After being accelerated by the rotor, the materials collide and break in the crushing chamber in a "stone-to-iron" manner, and the large pieces of materials are broken into fine particles. It can be seen that the main collision parts such as the peripheral guard plate in the crushing chamber are seriously worn, which will have a great impact on the life of the equipment. Therefore, realizing the life monitoring of the sand making machine is of great significance to reducing the maintenance cost of the equipment and ensuring the safe and stable operation of the equipment.

[0003] The Chinese patent with publication number CN 114260091 B proposes an environmentally friendly crushing sand making machine with intelligent wear detection function, which detects the wear degree of the equipment through a distance sensor, but has high requirements for sensor accuracy and large limitations on operating conditions. The Chinese patent with publication number CN 111701667 B proposes a sand making machine with wear monitoring and its sensor, which can detect the wear degree of the bearing cylinder surface; however, it is not possible to monitor the life of the main wear parts of the sand making machine. Summary of the invention

[0004] The purpose of the present invention is to provide a sand making machine with a life monitoring function, which judges the wear status of the middle position and side of the peripheral guard plate through life monitoring devices evenly distributed on the circumferential and axial directions of the inner wall of the crushing chamber, thereby monitoring the remaining life of the peripheral guard plate of the sand making machine, reducing the maintenance cost of the equipment and ensuring the safe and stable operation of the equipment.

[0005] In order to achieve the above-mentioned invention object, the technical solution adopted by the present invention is specifically as follows:

[0006] The present invention provides a sand making machine with a life monitoring function, wherein the sand making machine is evenly and evenly provided with a plurality of alternately arranged life monitoring devices and peripheral guard plate assemblies on the circumference of the inner wall of the crushing chamber, wherein the life monitoring device comprises a peripheral guard plate, wherein the peripheral guard plate is fixed to the inner wall of the crushing chamber by a connecting buckle provided in the middle of the bottom surface, and the bottom surface of the peripheral guard plate is also provided with a middle monitoring hole and two side monitoring holes symmetrically arranged on both sides of the middle monitoring hole, wherein the middle monitoring hole is connected to a positioning hole provided in the middle of the bottom surface of the peripheral guard plate, and the positioning hole passes through the connecting buckle;

[0007] A monitoring rod is installed in each of the middle monitoring hole and the side monitoring hole. The monitoring rod includes a plurality of mounting platforms with increasing diameters from left to right. The middle monitoring hole and the side monitoring hole are provided with a plurality of mounting holes adapted to the mounting platforms on the monitoring rod; the left vertex of the monitoring rod abuts against the bottom surface of the middle monitoring hole and the side monitoring hole, and a gap is left between the other mounting platforms of the monitoring rod and the end surface of the adapted mounting hole;

[0008] The right end face of the monitoring rod in the middle monitoring hole contacts with an adjusting rod, and the end of the adjusting rod away from the monitoring rod contacts with a spring. The end of the spring away from the adjusting rod is pressed and fixed by a fixing plate on the connecting buckle, and a pressure sensor capable of detecting the spring pressure is embedded on the end face of the fixing plate close to the spring.

[0009] The right end face of the monitoring rod in the side monitoring hole contacts the second spring, and the end of the second spring away from the monitoring rod is pressed and fixed to the bottom surface of the surrounding guard plate by a second fixing plate. A pressure sensor capable of detecting the pressure of the second spring is embedded in the end surface of the second fixing plate close to the second spring. The wear status of the middle position and side of the surrounding guard plate is judged according to the pressure data of the pressure sensor, thereby monitoring the remaining life of the surrounding guard plate of the sand making machine.

[0010] Preferably, the outer structure of the peripheral guard plate assembly is the same as that of the peripheral guard plate, and the bottom surface of the peripheral guard plate assembly is also fixed to the inner wall of the crushing chamber by a connecting buckle clamp.

[0011] Preferably, the fixing plate is fixed to a fixing plate mounting platform provided on the connecting buckle by means of bolts, and the second fixing plate is fixed to a second fixing plate mounting platform provided on the bottom surface of the peripheral guard plate by means of bolts.

[0012] Preferably, the fixing plate and the second fixing plate are provided with sensor mounting holes for embedding the pressure sensor and wire holes for leading out the wires.

[0013] Preferably, the life monitoring devices and hollow peripheral guard plates are arranged in two layers, with 4 to 8 life monitoring devices arranged in each layer and 12 to 24 peripheral guard plate assemblies arranged in a staggered manner between the two layers.

[0014] Preferably, the monitoring rod comprises a first mounting platform, a second mounting platform, a third mounting platform and a fourth mounting platform with gradually increasing diameters; the middle monitoring hole and the side monitoring hole are provided with a first mounting hole, a second mounting hole, a third mounting hole and a fourth mounting hole with gradually increasing inner diameters adapted to the monitoring rod, and the first mounting hole, the second mounting hole, the third mounting hole and the fourth mounting hole have the same height and their diameters increase in sequence and equidistantly.

[0015] Preferably, the diameters of the first mounting platform, the second mounting platform, the third mounting platform and the fourth mounting platform are respectively smaller than the diameters of the first mounting hole, the second mounting hole, the third mounting hole and the fourth mounting hole by 0.5 to 1 mm.

[0016] The height of the first mounting platform is 2 mm greater than the height of the first mounting hole. The heights of the second mounting platform and the third mounting platform are the same as the corresponding second mounting hole and third mounting hole, respectively. The height of the fourth mounting platform is half of the height of the third mounting platform.

[0017] Preferably, the spring is in a compressed state, the first mounting hole contacts the end surface of the first mounting platform, there is a 2 mm gap between the second mounting hole and the second mounting platform, the third mounting hole and the third mounting platform, and the fourth mounting hole and the fourth mounting platform end surface, and the adjustment rod is used to adjust the pressure of the pressure sensor.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The life monitoring devices evenly distributed in the circumferential and axial directions of the peripheral guard plate assembly on the inner wall of the crushing chamber can be used to determine the wear status of the middle and side of the peripheral guard plate, thereby monitoring the remaining life of the peripheral guard plate of the sand making machine in real time. This avoids the failure of the peripheral guard plate to protect the crushing chamber after severe wear, which in turn causes the crushing chamber to be damaged and the material crushing rate to be reduced, thereby ensuring the safe and stable operation of the equipment. At the same time, real-time monitoring of the remaining life of the peripheral guard plate avoids manual inspection and equipment downtime, reducing the maintenance cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0021] Figure 1 A schematic structural diagram of a sand making machine with a life monitoring function provided by an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of the structure of a life monitoring device provided by an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of the structure of a peripheral guard plate provided in an embodiment of the present invention;

[0024] Figure 4 A schematic diagram of the structure of a monitoring rod provided in an embodiment of the present invention.

[0025] Description of reference numerals:

[0026] 1. Lower body; 2. Main shaft system; 3. Rotor; 4. Crushing chamber; 5. Upper impact plate assembly; 6. Discharging device; 7. Upper body; 8. Life monitoring device; 8-1. Peripheral guard plate; 8-1-1. Middle monitoring hole; 8-1-2. Side monitoring hole; 8-1-3. Connecting buckle; 8-1-4. Fixed plate mounting platform; 8-1-5. Positioning hole; 8-1-6. First mounting hole; 8-1-7. Second mounting hole; 8-1-8. The third mounting hole; 8-1-9, the fourth mounting hole; 8-2, the monitoring rod; 8-2-1, the first mounting platform; 8-2-2, the second mounting platform; 8-2-3, the third mounting platform; 8-2-4, the fourth mounting platform; 8-3, the pressure sensor; 8-4, the fixing plate; 8-4-1, the wire hole; 8-4-2, the sensor mounting hole; 8-5, the spring; 8-6, the adjustment rod; 8-7, the bolt; 9, the motor; 10, the peripheral guard plate assembly. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0028] like Figure 1-Figure 4 As shown, the sand making machine in this embodiment includes a lower body 1, a main shaft system 2, a rotor 3, a crushing chamber 4, an upper impact plate assembly 5, a discharge device 6, an upper body 7, a life monitoring device 8, a motor 9, and a peripheral guard plate assembly 10. The motor 9 is connected with the main shaft system 2, the main shaft system 2 and the crushing chamber 4 are installed on the lower body 1, the rotor 3 is installed in the crushing chamber 4 and fixedly connected with the main shaft system 2, the upper impact plate assembly 5, the life monitoring device 8 and the peripheral guard plate assembly 10 are installed on the inner wall of the crushing chamber 4, the upper body 7 is installed on the crushing chamber 4, and the discharge device 6 is installed in the upper body 7.

[0029] A sand making machine with a life monitoring function provided by an embodiment of the present invention comprises a plurality of alternately arranged life monitoring devices 8 and peripheral guard plate assemblies 10 uniformly distributed on the circumference of the inner wall of the crushing chamber 4 of the sand making machine, wherein the life monitoring device 8 comprises a peripheral guard plate 8-1, wherein the peripheral guard plate 8-1 is fixed to the inner wall of the crushing chamber 4 by a connecting buckle 8-1-3 arranged in the middle of the bottom surface, and the bottom surface of the peripheral guard plate 8-1 is also provided with a middle monitoring hole 8-1-1 and two side monitoring holes 8-1-2 symmetrically arranged on both sides of the middle monitoring hole 8-1-1, wherein the middle monitoring hole 8-1-1 is connected to a positioning hole 8-1-5 opened in the middle of the bottom surface of the peripheral guard plate 8-1, and the positioning hole 8-1-5 passes through the connecting buckle 8-1-3;

[0030] The monitoring rod 8-2 is installed in the middle monitoring hole 8-1-1 and the side monitoring hole 8-1-2. The monitoring rod 8-2 includes a plurality of mounting platforms with increasing diameters from left to right. The middle monitoring hole 8-1-1 and the side monitoring hole 8-1-2 are provided with a plurality of mounting holes adapted to the mounting platforms on the monitoring rod 8-2. The left vertex of the monitoring rod 8-2 abuts against the bottom surface of the middle monitoring hole 8-1-1 and the side monitoring hole 8-1-2, and the other mounting platforms of the monitoring rod 8-2 have a gap with the end surface of the adapted mounting hole.

[0031] The right end face of the monitoring rod 8-2 in the middle monitoring hole 8-1-1 contacts with an adjusting rod 8-6, and the end of the adjusting rod 8-6 away from the monitoring rod 8-2 contacts with a spring 8-5. The end of the spring 8-5 away from the adjusting rod 8-6 is pressed and fixed by a fixing plate 8-4 on the connecting buckle 8-1-3, and a pressure sensor 8-3 capable of detecting the pressure of the spring 8-5 is embedded on the end face of the fixing plate 8-4 close to the spring 8-5.

[0032] The right end face of the monitoring rod 8-2 in the side monitoring hole 8-1-2 contacts the second spring, and the end of the second spring away from the monitoring rod 8-2 is pressed and fixed to the bottom surface of the peripheral guard plate 8-1 by a second fixing plate. A pressure sensor 8-3 capable of detecting the pressure of the second spring is embedded in the end face of the second fixing plate close to the second spring. The wear status of the middle position and the side of the peripheral guard plate 8-1 is judged according to the pressure data of the pressure sensor 8-3, thereby monitoring the remaining life of the peripheral guard plate 8-1 of the sand making machine.

[0033] The outer structure of the peripheral guard plate assembly 10 is the same as that of the peripheral guard plate 8-1, and the bottom surface of the peripheral guard plate assembly 10 is also fixed to the inner wall of the crushing chamber 4 by the provided connecting buckle 8-1-3 caliper.

[0034] The fixing plate 8-4 is fixed to the fixing plate mounting platform 8-1-4 provided in the connecting buckle 8-1-3 by means of bolts 8-7, and the second fixing plate is fixed to the second fixing plate mounting platform provided on the bottom surface of the peripheral guard plate 8-1 by means of bolts 8-7.

[0035] The fixing plate 8-4 and the second fixing plate are provided with a sensor mounting hole 8-4-2 for embedding the pressure sensor 8-3 and a wire hole 8-4-1 for leading out the wires.

[0036] The life monitoring devices 8 and hollow peripheral guard plates 10 are arranged in two layers, with 4 to 8 life monitoring devices 8 arranged in each layer and 12 to 24 peripheral guard plate assemblies 10 arranged in a staggered manner between the two layers.

[0037] The monitoring rod 8-2 includes a first mounting platform 8-2-1, a second mounting platform 8-2-2, a third mounting platform 8-2-3 and a fourth mounting platform 8-2-4 with gradually increasing diameters; the middle monitoring hole 8-1-1 and the side monitoring hole 8-1-2 are provided with a first mounting hole 8-1-6, a second mounting hole 8-1-7, a third mounting hole 8-1-8 and a fourth mounting hole 8-1-9 with gradually increasing inner diameters adapted to the monitoring rod 8-2, and the first mounting hole 8-1-6, the second mounting hole 8-1-7, the third mounting hole 8-1-8 and the fourth mounting hole 8-1-9 have the same height and their diameters increase in sequence and equidistantly.

[0038] The diameters of the first mounting platform 8-2-1, the second mounting platform 8-2-2, the third mounting platform 8-2-3 and the fourth mounting platform 8-2-4 are respectively smaller than the diameters of the first mounting hole 8-1-6, the second mounting hole 8-1-7, the third mounting hole 8-1-8 and the fourth mounting hole 8-1-9 by 0.5 to 1 mm.

[0039] The height of the first mounting platform 8-2-1 is 2 mm greater than the height of the first mounting hole 8-1-6. The heights of the second mounting platform 8-2-2 and the third mounting platform 8-2-3 are the same as the corresponding second mounting hole 8-1-7 and the third mounting hole 8-1-8, respectively. The height of the fourth mounting platform 8-2-4 is half the height of the third mounting platform 8-2-3.

[0040] The spring 8-5 is in a compressed state, the first mounting hole 8-1-6 is in contact with the end face of the first mounting platform 8-2-1, there is a 2mm gap between the second mounting hole 8-1-7 and the second mounting platform 8-2-2, the third mounting hole 8-1-8 and the third mounting platform 8-2-3, and the fourth mounting hole 8-1-9 and the fourth mounting platform 8-2-4, and the adjustment rod 8-6 is used to adjust the pressure of the pressure sensor 8-3.

[0041] During installation, first, the motor 9 is connected to the main shaft system 2, the main shaft system 2 and the crushing chamber 4 are installed on the lower body 1, and the rotor 3 is installed in the crushing chamber 4 and fixedly connected to the main shaft system 2. Then, the upper impact plate assembly 5, the life monitoring device 8 and the peripheral guard plate assembly 10 are installed on the inner wall of the crushing chamber 4. The life monitoring device 8 and the peripheral guard plate assembly 10 are evenly distributed along the inner wall of the crushing chamber 4 in the circumferential direction and in two layers in the axial direction. Each layer is provided with 4 to 8 life monitoring devices 8, and 12 to 24 peripheral guard plate assemblies 10 are provided, and the two layers are staggered. Finally, the upper body 7 is installed on the crushing chamber 4, and the unloading device 6 is installed in the upper body 7.

[0042] When the sand making machine is working, the spring 8-5 is in a compressed state, and the pressure sensor 8-3 records data. When the sand making machine is crushing, the peripheral guard plate 8-1 will wear as the material impacts. When the middle position or the side of the peripheral guard plate 8-1 gradually wears to the first mounting hole 8-1-6, the gap between the second mounting hole 8-1-7 and the end face of the second mounting platform 8-2-2 disappears, the compression state of the spring 8-5 changes, and the pressure sensor 8-3 records data and sends a signal. Similarly, when the middle position or the side of the peripheral guard plate 8-1 gradually wears to the fourth mounting hole 8-1-9, the pressure sensor 8-3 records data and sends a signal, and the equipment needs to replace the peripheral guard plate 8-1.

[0043] This device uses the life monitoring devices evenly distributed in the circumferential and axial directions of the peripheral guard plate assembly on the inner wall of the crushing chamber to judge the wear status of the middle position and side of the peripheral guard plate, thereby monitoring the remaining life of the peripheral guard plate of the sand making machine in real time. This avoids the failure of the peripheral guard plate to protect the crushing chamber after severe wear, which leads to the destruction of the crushing chamber and the reduction of the material crushing rate, ensuring the safe and stable operation of the equipment. At the same time, the real-time monitoring of the remaining life of the peripheral guard plate avoids manual inspection and equipment shutdown, reducing the maintenance cost of the equipment.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sand making machine with life monitoring function, characterized in that: The sand making machine is provided with a plurality of alternately arranged life monitoring devices (8) and peripheral guard plate assemblies (10) uniformly distributed on the circumference of the inner wall of the crushing chamber (4); the life monitoring device (8) comprises a peripheral guard plate (8-1); the peripheral guard plate (8-1) is fixed to the inner wall of the crushing chamber (4) by a connecting buckle (8-1-3) arranged in the middle of the bottom surface; the bottom surface of the peripheral guard plate (8-1) is also provided with a middle monitoring hole (8-1-1) and two side monitoring holes (8-1-2) symmetrically arranged on both sides of the middle monitoring hole (8-1-1); the middle monitoring hole (8-1-1) is connected to a positioning hole (8-1-5) opened in the middle of the bottom surface of the peripheral guard plate (8-1); and the positioning hole (8-1-5) passes through the connecting buckle (8-1-3); A monitoring rod (8-2) is installed in each of the middle monitoring hole (8-1-1) and the side monitoring hole (8-1-2); the monitoring rod (8-2) comprises a plurality of mounting platforms with diameters increasing from left to right; a plurality of mounting holes matching the mounting platforms on the monitoring rod (8-2) are arranged in the middle monitoring hole (8-1-1) and the side monitoring hole (8-1-2); the left vertex of the monitoring rod (8-2) abuts against the bottom surface of the middle monitoring hole (8-1-1) and the side monitoring hole (8-1-2), and a gap is left between the other mounting platforms of the monitoring rod (8-2) and the end surface of the matching mounting hole; The right end face of the monitoring rod (8-2) in the middle monitoring hole (8-1-1) contacts an adjustment rod (8-6); the end of the adjustment rod (8-6) away from the monitoring rod (8-2) contacts a spring (8-5); the end of the spring (8-5) away from the adjustment rod (8-6) is pressed and fixed by a fixing plate (8-4) on the connecting buckle (8-1-3); and a pressure sensor (8-3) capable of detecting the pressure of the spring (8-5) is embedded on the end face of the fixing plate (8-4) close to the spring (8-5); The right end face of the monitoring rod (8-2) in the side monitoring hole (8-1-2) contacts the second spring, and the end of the second spring away from the monitoring rod (8-2) is pressed and fixed on the bottom face of the peripheral guard plate (8-1) by a second fixing plate, and a pressure sensor (8-3) capable of detecting the pressure of the second spring is embedded in the end face of the second fixing plate close to the second spring. The wear state of the middle position and the side of the peripheral guard plate (8-1) is judged according to the pressure data of the pressure sensor (8-3), so as to monitor the remaining life of the peripheral guard plate (8-1) of the sand making machine.

2. A sand making machine with life monitoring function according to claim 1, characterized in that: The outer structure of the peripheral guard plate assembly (10) is the same as that of the peripheral guard plate (8-1), and the bottom surface of the peripheral guard plate assembly (10) is also fixed to the inner wall of the crushing chamber (4) by means of a connecting buckle (8-1-3) clamp.

3. A sand making machine with life monitoring function according to claim 1 or 2, characterized in that: The fixing plate (8-4) is fixed to a fixing plate mounting platform (8-1-4) provided on the connecting buckle (8-1-3) by means of bolts (8-7), and the second fixing plate is fixed to a second fixing plate mounting platform provided on the bottom surface of the peripheral guard plate (8-1) by means of bolts (8-7).

4. A sand making machine with life monitoring function according to any one of claims 1 to 3, characterized in that: The fixing plate (8-4) and the second fixing plate are provided with a sensor mounting hole (8-4-2) for embedding the pressure sensor (8-3) and a wire passing hole (8-4-1) for facilitating the leading of the wire.

5. A sand making machine with life monitoring function according to any one of claims 1 to 4, characterized in that: The life monitoring devices (8) and hollow peripheral guard plates (10) are arranged in two layers, with 4 to 8 life monitoring devices (8) arranged in each layer and 12 to 24 peripheral guard plate assemblies (10) arranged in a staggered manner between the two layers.

6. A sand making machine with life monitoring function according to any one of claims 1 to 5, characterized in that: The monitoring rod (8-2) comprises a first mounting platform (8-2-1), a second mounting platform (8-2-2), a third mounting platform (8-2-3) and a fourth mounting platform (8-2-4) with gradually increasing diameters; the middle monitoring hole (8-1-1) and the side monitoring hole (8-1-2) are provided with a first mounting hole (8-1-6), a second mounting hole (8-1-7), a third mounting hole (8-1-8) and a fourth mounting hole (8-1-9) with gradually increasing inner diameters adapted to the monitoring rod (8-2); the first mounting hole (8-1-6), the second mounting hole (8-1-7), the third mounting hole (8-1-8) and the fourth mounting hole (8-1-9) have the same height and their diameters increase in sequence and at equal intervals.

7. The sand making machine with life monitoring function according to claim 6, characterized in that: The diameters of the first mounting platform (8-2-1), the second mounting platform (8-2-2), the third mounting platform (8-2-3) and the fourth mounting platform (8-2-4) are respectively smaller than the diameters of the first mounting hole (8-1-6), the second mounting hole (8-1-7), the third mounting hole (8-1-8) and the fourth mounting hole (8-1-9) by 0.5 to 1 mm. The height of the first mounting platform (8-2-1) is 2 mm greater than the height of the first mounting hole (8-1-6); the heights of the second mounting platform (8-2-2) and the third mounting platform (8-2-3) are respectively the same as the corresponding second mounting hole (8-1-7) and the third mounting hole (8-1-8); and the height of the fourth mounting platform (8-2-4) is half the height of the third mounting platform (8-2-3).

8. The sand making machine with life monitoring function according to claim 7, characterized in that: The spring (8-5) is in a compressed state, the first mounting hole (8-1-6) contacts the end surface of the first mounting platform (8-2-1), a 2 mm gap exists between the end surfaces of the second mounting hole (8-1-7) and the second mounting platform (8-2-2), the third mounting hole (8-1-8) and the third mounting platform (8-2-3), and the fourth mounting hole (8-1-9) and the fourth mounting platform (8-2-4), and the adjustment rod (8-6) is used to adjust the pressure of the pressure sensor (8-3).

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