High-fine crusher

Abstract

The high-fine crusher comprises a machine frame, a main machine and a motor are arranged on the machine frame, the main machine comprises a machine shell with a crushing cavity, a feeding port communicated with the crushing cavity is formed in the upper end of the machine shell, a discharging port communicated with the crushing cavity is formed in the lower end of the machine shell, and an impact plate is arranged on the inner wall of the crushing cavity. A side lining plate is arranged on the side wall of the machine shell; a rotor part is arranged in the crushing cavity and comprises a main shaft connected to the side wall of the machine shell, a hammer head located in the crushing cavity is arranged on the main shaft, a flywheel is arranged at one end of the main shaft, and a belt pulley is arranged at the other end of the main shaft; and the belt pulley is connected with a motor through a belt. The crusher has the advantages that the structure is compact, the machine rigidity is high, the hydraulic hoist shell is adopted, equipment can be conveniently opened for maintenance, the hammer head is high in hardness, combined design is adopted, rapid replacement is convenient, the crusher can give an alarm automatically, the safety is better, and the intelligence is higher.

Description

Technical Field

[0001] The invention belongs to the field of mining machinery and engineering machinery, and in particular relates to a high-fine crusher. Background Art

[0002] In recent years, backfill mining technology has been increasingly used in the field of mine backfilling. Crusher is one of the commonly used equipment in mining, coal mining and other industries. By adjusting the scale of the crusher's grinding wheel, various solid materials such as coal gangue can be crushed to the required fineness. Due to the different hardness of materials such as coal gangue, multiple crushers with different crushing fineness are generally required, resulting in long operation time and difficulty in ensuring the crushing quality. At the same time, traditional crushers are mostly integral, with relatively uniform particle size control, and cannot be adjusted on site. In addition, the replacement of wearing parts such as crushing components and hammers is relatively complicated and inconvenient for manual operation, which leads to many defects and shortcomings such as high labor intensity and low efficiency.

[0003] In summary, how to provide a simple, reliable and convenient high-fine crusher with replacement of wearing parts has become a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0004] The present invention aims to overcome the deficiencies of the prior art and provide a high-fine crusher.

[0005] In order to achieve the above object, the present invention provides the following technical solutions: The high-fine crusher comprises a frame (1), on which a main machine (2) and a motor (5) are arranged, the main machine (2) comprising a casing (3) with a crushing chamber, the upper end of the casing (3) being provided with an inlet (4) communicating with the crushing chamber, the lower end of the casing being provided with an outlet communicating with the crushing chamber, the inner wall of the crushing chamber being provided with an impact plate (6), and the side wall of the casing (3) being provided with a side lining plate (7); a rotor component (8) being provided in the crushing chamber, the rotor component (8) comprising a main shaft (9) connected to the side wall of the casing (3), the main shaft (9) being provided with a hammer head (10) located in the crushing chamber, one end of the main shaft (9) being provided with a flywheel (11), and the other end of the main shaft (9) being provided with a pulley (12); the pulley (12) being connected to the motor (5) via a belt.

[0006] Preferably, there are two crushing chambers, each of which is provided with a rotor component (8), and there are two motors (5) which are respectively connected to the pulleys (12) of the corresponding rotor components (8).

[0007] Preferably, the machine housing comprises an upper housing (13) and a lower housing (14), the upper housing (13) being connected to the lower housing (14) by bolts, and the high-fine crusher further comprises a hydraulic opening and closing device (15), the hydraulic opening and closing device (15) comprising an oil cylinder arranged at the connection between the upper housing (13) and the lower housing (14), the oil cylinder being connected to an oil pump motor, and a manual reversing valve being arranged on the oil pump motor.

[0008] Preferably, the impact plate (6) and the side lining plate (7) are fixed to the casing (3) by means of bolts.

[0009] Preferably, a bearing seat (16) is provided on the main shaft (9), and a temperature sensor (17) is mounted on the bearing seat (16).

[0010] Preferably, the hammer head (10) is an integral M13Cr2 high manganese steel alloy hammer head.

[0011] Preferably, the hammer head (10) is an integral double-liquid alloy high manganese steel and high chromium alloy white iron hammer head.

[0012] Preferably, the hammer head (10) comprises a female hammer (18) and a male hammer (19), the female hammer (18) being connected to the male hammer (19) via a locking bolt, the female hammer (18) being made of high wear-resistant high manganese steel Mn18Cr2, and the male hammer (19) being made of high chromium alloy white iron KmbtCr26.

[0013] Preferably, the high-fine crusher further comprises an electric control switch (20), and the motor (5), the temperature sensor (17), and the hydraulic opening and closing device (15) are all connected to the electric control switch (20).

[0014] The present invention will be further described below: The high-fine crusher of the present invention is mainly composed of five parts: a main machine, a frame, a lubrication system, a hydraulic opening and closing system, and an electronic control system. The main machine of the crusher is composed of a lower body, an upper body, two rotors, and two motors; the housing assembly is one of the main working parts of the main machine, consisting of a housing, a liner, and an impact plate, and is also a support for the rotor part, bearing seat and other parts; the housing is made of high-quality steel medium-thick steel plate Q235B, and is specially designed and made of a plurality of reinforcing ribs to ensure that the housing has sufficient rigidity; the inner wall is equipped with a wear-resistant liner, which is fixed in the housing with bolts and can be replaced after wear, which can prevent the entire housing from being scrapped due to excessive wear, thereby effectively improving the life of the body. The rotor part is mainly composed of a main shaft, a fixed plate, and a hammer head. The hammer head is made of special materials to extend the service life and reduce the number of replacements.

[0015] The working principle is: the material enters the crushing chamber from the feed port, the first-stage rotor rotates at high speed to perform primary crushing on the material, the crushed material passes through the middle chamber of the crushing chamber at high speed and hits the second-stage rotor rotating at high speed, the material is crushed for the second time, and hammering material is formed in the machine chamber, and the crushed material is discharged from the bottom discharge port; when it is necessary to check the crushing chamber or replace the hammer head and its internal parts, loosen the bolts connecting the upper and lower bodies, start the oil pump motor, slowly push the manual reversing valve to the open position, the oil pump supplies oil in the thrust direction of both cylinders, and the cylinder piston rod pushes the upper body around the fixed axis of the lower machine. After pushing it into place, the upper body and the lower body are fastened with a pin shaft, the manual valve returns to the middle position, and the oil pump motor is turned off. When it is necessary to close the upper body, remove the fastening pins of the upper body and the lower body, start the oil pump motor, slowly push the manual reversing valve to the closed position, the oil pump supplies oil in the pulling direction of both cylinders, the cylinder piston rod closes the upper body around the fixed axis of the lower body, the manual valve returns to the middle position, and the oil pump motor is shut down.

[0016] The hammer head is made of special material to extend its service life, reduce the frequency of replacement, and replace faster. Different hammer heads can be selected according to the physical properties of the mineral and the particle size of the output.

[0017] 1. Integral M13Cr2 high manganese steel alloy hammer: This hammer is suitable for ores with Pugh hardness f≤3.

[0018] 2. Combined high wear-resistant high manganese steel and high chromium alloy white iron hammer head: This hammer head is suitable for ores with Pu's hardness 3≤f≤5. The material used for the female hammer is Mn18Cr2, which is more wear-resistant than Mn13Cr2; the material used for the male hammer is KmbtCr26, which has better wear resistance than Mn18Cr2; the combined hammer head has a longer service life than the integral hammer head, and the combined hammer head can reach 90,000 tons. The most easily worn part of the hammer head is the top of the hammer head, and the hammer handle basically has little wear. When the traditional integral hammer head needs to be replaced, the hammer shaft needs to be taken out as a whole and then the hammer head needs to be replaced as a whole, which is not only uneconomical but also time-consuming. When replacing the combined hammer head, you only need to loosen the locking nut and replace the male hammer, which saves both the cost of the mother material and the replacement time. The new loose nut used in the locking nut of this hammer head is safe and reliable.

[0019] This equipment has a temperature sensor installed on each bearing seat. The temperature transmitter transmits the temperature of the bearing to the host computer in real time. When the temperature of the bearing is higher than 70° and the temperature rise is greater than 40°, the host computer will alarm and the main motor will be powered off, ensuring the safety of the equipment and on-site staff.

[0020] Compared with the prior art, the present invention has the following beneficial effects: The high-fine crusher of the present invention has a compact structure, strong machine rigidity, and a rotor with a large moment of inertia; a two-stage and two-section arrangement is adopted: the crushing ratio is large, and the purpose of high-fine crushing can be achieved, and medium and fine crushing can be completed in one machine; the rotor adopts a two-stage and two-section arrangement, and crushing replaces grinding, and the energy consumption ratio is the lowest; a hydraulic opening and closing machine casing is adopted, and hammer replacement and maintenance are convenient and fast, and the equipment is easy to open for maintenance; the hammer head adopts a combined design to achieve the purpose of rapid replacement; the motor and the crusher adopt a matching integral steel structure base; the bearing automatically measures temperature and automatically alarms, and the safety is better and the intelligence is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the high fine crusher of the present invention; Figure 2 It is a structural schematic diagram of the upper shell of the high-fine crusher of the present invention; Figure 3 It is a structural schematic diagram of the lower housing of the high-fine crusher of the present invention; Figure 4 It is a structural schematic diagram of the rotor component of the high-fine crusher of the present invention; Figure 5 It is a structural schematic diagram of the hammer head of the high-fine crusher of the present invention.

[0022] In the figure: 1. frame; 2. main machine; 3. machine casing; 4. feed inlet; 5. motor; 6. impact plate; 7. side lining plate; 8. rotor component; 9. main shaft; 10. hammer head; 11. flywheel; 12. pulley; 13. upper casing; 14. lower casing; 15. opening and closing device; 16. bearing seat; 17. temperature sensor; 18. female hammer; 19. male hammer; 20. electric control switch. Implementation

[0023] See also Figures 1 to 5 The high-fine crusher includes a frame 1, on which a main machine 2 and a motor 5 are arranged. The main machine 2 includes a casing 3 with a crushing chamber, an upper end of the casing 3 is provided with a feeding port 4 connected to the crushing chamber, and a lower end of the casing is provided with a discharging port connected to the crushing chamber. An impact plate 6 is provided on the inner wall of the crushing chamber, and a side lining plate 7 is provided on the side wall of the casing 3; a rotor component 8 is provided in the crushing chamber, and the rotor component 8 includes a main shaft 9 connected to the side wall of the casing 3, and a hammer head 10 located in the crushing chamber is provided on the main shaft 9, a flywheel 11 is provided at one end of the main shaft 9, and a pulley 12 is provided at the other end of the main shaft 9; the pulley 12 is connected to the motor 5 through a belt.

[0024] There are two crushing chambers, each of which is provided with a rotor component 8. There are two motors 5, which are respectively connected to the pulleys 12 of the corresponding rotor components 8. The machine housing includes an upper housing 13 and a lower housing 14, and the upper housing 13 is connected to the lower housing 14 by bolts. The high-fine crusher also includes a hydraulic opening and closing device 15, which includes an oil cylinder provided at the connection between the upper housing 13 and the lower housing 14, and the oil cylinder is connected to the oil pump motor, and a manual reversing valve is provided on the oil pump motor; the counter-attack plate 6 and the side lining plate 7 are fixed to the machine housing 3 by bolts; the main shaft 9 is provided with a bearing The bearing seat 16 has a temperature sensor 17 installed on it; the hammer head 10 is an integral M13Cr2 high manganese steel alloy hammer head; the hammer head 10 is an integral double-liquid alloy high manganese steel and high chromium alloy tin hammer head; the hammer head 10 includes a female hammer 18 and a male hammer 19, the female hammer 18 is connected to the male hammer 19 by a locking bolt, the female hammer 18 is made of high wear-resistant high manganese steel Mn18Cr2, and the male hammer 19 is made of high chromium alloy tin KmbtCr26; the high fine crusher also includes an electric control switch 20, and the motor 5, the temperature sensor 17, and the hydraulic opening and closing device 15 are all connected to the electric control switch 20.

Claims

1. A high fine crusher, characterized in that: The high-fine crusher comprises a frame (1), on which a main machine (2) and a motor (5) are arranged, the main machine (2) comprising a casing (3) with a crushing chamber, the upper end of the casing (3) being provided with an inlet (4) connected to the crushing chamber, the lower end of the casing being provided with an outlet connected to the crushing chamber, the inner wall of the crushing chamber being provided with an impact plate (6), and the side wall of the casing (3) being provided with a side lining plate (7); a rotor component (8) being provided in the crushing chamber, the rotor component (8) comprising a main shaft (9) connected to the side wall of the casing (3), the main shaft (9) being provided with a hammer head (10) located in the crushing chamber, one end of the main shaft (9) being provided with a flywheel (11), and the other end of the main shaft (9) being provided with a pulley (12); the pulley (12) being connected to the motor (5) via a belt.

2. The high fine crusher according to claim 1, characterized in that: There are two crushing chambers, each of which is provided with a rotor component (8). There are two motors (5) which are respectively connected to the pulleys (12) of the corresponding rotor components (8).

3. The high fine crusher according to claim 1, characterized in that: The machine housing comprises an upper housing (13) and a lower housing (14), wherein the upper housing (13) is connected to the lower housing (14) by bolts. The high-fine crusher further comprises a hydraulic opening and closing device (15), wherein the hydraulic opening and closing device (15) comprises an oil cylinder arranged at the connection between the upper housing (13) and the lower housing (14), wherein the oil cylinder is connected to an oil pump motor, and a manual reversing valve is arranged on the oil pump motor.

4. The high fine crusher according to claim 1, characterized in that: The impact plate (6) and the side lining plate (7) are fixed to the casing (3) by means of bolts.

5. The high fine crusher according to claim 1, characterized in that: A bearing seat (16) is provided on the main shaft (9), and a temperature sensor (17) is installed on the bearing seat (16).

6. The high fine crusher according to claim 1, characterized in that: The hammer head (10) is an integral M13Cr2 high manganese steel alloy hammer head.

7. The high fine crusher according to claim 1, characterized in that: The hammer head (10) is an integral double-liquid alloy high manganese steel and high chromium alloy white iron hammer head.

8. The high fine crusher according to claim 1, characterized in that: The hammer head (10) comprises a female hammer (18) and a male hammer (19), wherein the female hammer (18) is connected to the male hammer (19) via a locking bolt, the female hammer (18) is made of high wear-resistant high manganese steel Mn18Cr2, and the male hammer (19) is made of high chromium alloy white iron KmbtCr26.

9. The high fine crusher according to claim 1, characterized in that: The high-fine crusher also includes an electric control switch (20), and the motor (5), the temperature sensor (17), and the hydraulic opening and closing device (15) are all connected to the electric control switch (20).

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