Coal pulverizer lift

Abstract

The present application relates to coal pulverizer technical field, especially point to a kind of coal pulverizer lifting device, lifting seat, the lifting seat is made of two fixed supports;Rotary shaft, the rotary shaft rotation is installed between the two fixed supports of lifting seat;Mounting bracket, the mounting bracket is set multiple, and it is fixedly installed in the circumferential array of the outer circumferential surface of rotary shaft;Coal pulverizing box, the coal pulverizing box is set multiple, and respectively rotation is set between each group of mounting bracket, the coal pulverizing box of uppermost side is contacted with external conveying belt;Balancing mechanism, the balancing mechanism is arranged in mounting bracket interior;When needing to lift coal pulverizing box, by control drive mechanism, lower coal pulverizing box is rotated to highest side, so that the coal pulverizing box of highest side is contacted with external conveying belt, then by discharging mechanism, coal material inside coal pulverizing box is released, it is more convenient to operate, and lifting process is safe.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal pulverizer, in particular to a coal pulverizer lifting device. BACKGROUND

[0002] The coal pulverizer is also called coal crusher, which is one of the commonly used equipment in the production line of crushing coal and gangue. The coal pulverizer is improved on the basis of the old hammer crusher, and is a new type of coal pulverizer.

[0003] The coal pulverizer needs to maintain stable operation of the equipment during use to avoid efficiency decline caused by speed fluctuation. According to the hardness, humidity and particle size of coal, the appropriate pulverizer model and configuration are selected, and the equipment is regularly inspected and maintained to ensure that the equipment is in good working condition.

[0004] After the coal is pulverized, the entire pulverizer needs to be lifted to the required position. At present, it is troublesome to lift the pulverizer, and after the pulverizer is lifted, the coal in the pulverizer needs to be discharged. At present, it is cumbersome to operate, which is not conducive to the subsequent use of coal. SUMMARY

[0005] Therefore, the technical problem to be solved by the present application is to overcome the problems of troublesome lifting of the coal pulverizer and cumbersome discharge of the coal in the prior art.

[0006] To solve the above technical problems, the present application provides a coal pulverizer lifting device, comprising:

[0007] The lifting seat is composed of two fixed supports;

[0008] The rotating shaft is rotatably installed between the two fixed supports of the lifting seat;

[0009] The mounting bracket is provided in multiple groups and is fixedly installed in a circumferential array on the outer peripheral surface of the rotating shaft;

[0010] The coal pulverizing box is provided in multiple groups and is rotatably arranged between each group of mounting brackets. The uppermost coal pulverizing box is in contact with the external conveying belt;

[0011] The balancing mechanism is arranged inside the mounting bracket, and the balancing mechanism is used to maintain the balance of the coal pulverizing box during lifting;

[0012] The discharging mechanism is arranged outside the coal pulverizing box, and the discharging mechanism is used to control the automatic discharge of the coal in the coal pulverizing box;

[0013] The driving mechanism is arranged in the lifting seat, and the driving mechanism is used to intermittently rotate the rotating shaft.

[0014] In one embodiment of the present application, the balancing mechanism comprises:

[0015] The fixed round rods are arranged in multiple groups and are arranged between each mounting bracket;

[0016] The mounting frame is arranged outside the coal crushing box, a placing groove matched with the coal crushing box is arranged in the mounting frame, and the mounting frame is rotationally arranged between the two fixed round rods.

[0017] In one embodiment of the present application, the two side walls of the mounting frame are fixedly installed with limiting annular rings, a limiting annular groove is formed in the inner wall of the limiting annular ring, and the end of the fixed round rod is rotationally installed in the limiting annular groove.

[0018] In one embodiment of the present application, the discharging mechanism comprises:

[0019] The rotating column one is rotationally installed on the upper side inside the mounting frame, and the end of the rotating column one is connected with the motor output end;

[0020] The discharging port is formed in the front end surface of the coal crushing box;

[0021] The coal material blocking bracket is rotationally installed on the front end surface of the coal crushing box, the coal material blocking bracket is used for shielding the discharging port, and the shape of the coal material blocking bracket is matched with the shape of the discharging port;

[0022] The limiting baffle is fixedly installed on the outer circumferential surface of the rotating column one;

[0023] The torsional spring is arranged at the contact position of the coal material blocking bracket and the coal crushing box rotating shaft.

[0024] In one embodiment of the present application, the discharging mechanism further comprises:

[0025] The rotating column two is rotationally installed on the lower side of the outer wall of the mounting frame, and the rotating column two and the rotating column one are arranged on the same vertical line;

[0026] The belt is arranged between the rotating column two and the rotating column one;

[0027] The support plate is rotationally arranged between the two mounting frames arranged correspondingly, and the coal crushing box is clamped on the upper end surface of the support plate;

[0028] The guide unit is arranged on the side wall of the mounting frame, and the guide unit is used for controlling the downward rotation of the support plate.

[0029] In one embodiment of the present application, the guide unit comprises:

[0030] A guide frame, wherein a set of installation frame surface guide frames are arranged two, and are arranged on the lower side of the two side walls of the installation frame respectively;

[0031] A sliding clamping column, which is slidingly installed in the interior of the guide frame, and the end of the sliding clamping column is in contact with the front side of the lower end surface of the support plate;

[0032] A limiting spring, which is sleeved on the outer peripheral surface of the sliding clamping column, and the limiting spring is arranged in the interior of the guide frame;

[0033] A rotating disc, which is fixedly installed at the end of the rotating column two;

[0034] A limiting concave plate, which is fixedly installed on the surface of the rotating disc, the limiting concave plate is arranged in the same horizontal plane as the sliding clamping column, and the end of the limiting concave plate is provided with a circular groove matched with the sliding clamping column.

[0035] In one embodiment of the present application, the lower end surface of each set of installation frames is fixedly installed with a connecting bracket, the surface of the connecting bracket is fixedly installed with a limiting support head, and the upper end of the limiting support head faces the lower end surface of the support plate.

[0036] In one embodiment of the present application, the two side walls of each set of installation frames are rotatably installed with a dustproof frame, the shape of the dustproof frame is matched with the shape of the support plate, the two side walls of the support plate are installed with a linkage rod, and the end of the linkage rod away from the support plate is rotatably connected with the lower wall of the dustproof frame.

[0037] In one embodiment of the present application, the drive mechanism comprises:

[0038] A drive gear, which is fixedly installed at the end of the rotating shaft

[0039] An incomplete gear, which is rotatably installed in the interior of the lifting seat, the incomplete gear and the drive gear are meshingly connected, and the end of the incomplete gear is connected with the output end of the external motor.

[0040] In one embodiment of the present application, the upper end surface of each set of coal crushing boxes is installed with a contact one through a support rod, the surface of the lifting seat is installed with a contact two through a support, and the surface of the installation frame contacts the contact two during rotation.

[0041] The above technical scheme of the present application has the following advantages compared with the prior art:

[0042] The coal pulverizer lifting device disclosed by the application can realize the automatic discharging function of coal, avoid the need for workers to manually lift coal, reduce the workload, and facilitate the subsequent use of coal.

[0043] When the coal pulverizer box is moved to the uppermost side, and when the rotating column one and the rotating column two rotate simultaneously, the rotating column two drives the rotating disc to rotate, the rotating disc drives the limiting concave plate on the surface thereof to move away from the end of the sliding clamping column, so that the sliding clamping column is no longer limited by the limiting concave plate, and then under the elastic recovery of the limiting spring, the sliding clamping column moves away from the lower end surface of the coal pulverizer box, and then under the gravity of the coal pulverizer box, the lower end surface of the support plate is driven to rotate in a downward trend, thereby accelerating the falling of the coal in the coal pulverizer box, and bringing convenience for the lifting and conveying of the coal. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to make the content of the application more easily understood, the application will be further described in detail below according to specific embodiments of the application and in conjunction with the drawings.

[0045] Figure 1 is a three-dimensional structure schematic diagram of the application;

[0046] Figure 2 is a rotating shaft part structure schematic diagram of the application;

[0047] Figure 3 is a fixed circular rod structure schematic diagram of the application;

[0048] Figure 4 is a limiting ring structure schematic diagram of the application;

[0049] Figure 5 is a coal blocking frame structure schematic diagram of the application;

[0050] Figure 6 is a discharge port structure schematic diagram of the application;

[0051] Figure 7 is a support plate structure schematic diagram of the application;

[0052] Figure 8 is a sliding clamping column structure schematic diagram of the application;

[0053] Figure 9 is a guide frame part structure schematic diagram of the application;

[0054] Figure 10This is a schematic diagram of the limiting support head structure in this invention;

[0055] Figure 11 This is a schematic diagram of the dustproof frame structure in this invention;

[0056] Figure 12 This is a schematic diagram of the drive gear structure in this invention.

[0057] Explanation of reference numerals in the accompanying drawings: 1. Lifting seat; 2. Rotating shaft; 3. Mounting bracket; 301. Fixed round rod; 302. Round plate; 4. Coal crushing box; 5. Mounting frame; 501. Limiting ring; 502. Limiting ring groove; 6. Rotating column one; 601. Limiting baffle; 7. Discharge port; 8. Coal baffle; 9. Torsion spring; 10. Rotating column two; 101. Rotating disc; 11. Belt; 12. Support plate; 13. Guide frame; 14. Sliding locking column; 15. Limiting spring; 16. Limiting concave plate; 17. Connecting bracket; 18. Limiting support head; 19. Dustproof frame; 20. Linkage rod; 21. Drive gear; 22. Incomplete gear; 23. Contact one; 24. Contact two. Detailed Implementation

[0058] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0059] Reference Figures 1 to 5 As shown in the embodiment of the present invention, a coal crusher lifting device includes: a lifting seat 1, which is composed of two fixed supports; a rotating shaft 2, which is rotatably installed between the two fixed supports of the lifting seat 1; a mounting bracket 3, which is arranged in multiple sets and fixedly installed on the outer circumferential surface of the rotating shaft 2 in a circumferential array; a coal crushing box 4, which is arranged in multiple sets and rotatably installed between each set of mounting brackets 3, with the uppermost coal crushing box 4 in contact with an external conveyor belt; a balancing mechanism, which is installed inside the mounting bracket 3 and is used to control the coal crushing box 4 to maintain balance during lifting; a discharge mechanism, which is installed outside the coal crushing box 4 and is used to control the automatic discharge of coal material inside the coal crushing box 4; and a drive mechanism, which is installed inside the lifting seat 1 and is used to drive the rotating shaft 2 to rotate intermittently.

[0060] During operation, uncrushed coal is fed into the coal crushing box 4, and the coal is crushed by the crushing mechanism inside the coal crushing box 4. The crushing method here is existing technology and will not be described in detail in this embodiment of the invention. When it is necessary to lift the coal crushing box 4, the lower coal crushing box 4 is rotated to the highest side by controlling the drive mechanism, so that the coal crushing box 4 on the highest side contacts the external conveyor belt. Then, the coal inside the coal crushing box 4 is discharged by the discharge mechanism. The operation is relatively convenient and the lifting process is safe.

[0061] The balancing mechanism includes: a fixed round rod 301, multiple sets of which are respectively arranged between each mounting bracket 3; and a mounting frame 5, which is arranged outside the coal crushing box 4, and has a placement groove adapted to the coal crushing box 4 inside the mounting frame 5, and is rotatably arranged between two horizontal fixed round rods 301.

[0062] When working, refer to the appendix Figure 1 , Figure 2 and Figure 3 As shown, when the bottom coal crushing box 4 is rotated to the top by the drive mechanism, since the mounting frame 5 and the coal crushing box 4 inside it rotate between two adjacent fixed round rods 301, the coal crushing box 4 is kept in a balanced state due to its gravity during the lifting process, thus ensuring that the coal crushing box 4 is in a safe state during the lifting and ensuring the normal use of subsequent coal materials.

[0063] Limiting rings 501 are fixedly installed on both sides of the mounting frame 5. The inner wall of the limiting rings 501 has a limiting ring groove 502. The end of the fixed round rod 301 is rotatably installed inside the limiting ring groove 502 through the round plate 302. During operation, when the coal crushing box 4 is lifted, it is subjected to its own weight, which causes the limiting rings 501 and limiting ring grooves 502 on the outer wall of the mounting frame 5 to rotate at a certain angle on the outer circumferential surface of the round plate 302, so that the coal crushing box 4 is in a balanced state.

[0064] Reference Figures 3 to 8 As shown, the discharge mechanism includes: a rotating column 6, which is rotatably installed on the upper side inside the mounting frame 5, and the end of the rotating column 6 is connected to the motor output end; a discharge port 7, which is opened on the front end face of the coal crushing box 4; a coal baffle 8, which is rotatably installed on the front end face of the coal crushing box 4, and is used to block the discharge port 7, and the shape of the coal baffle 8 is adapted to the shape of the discharge port 7; a limiting baffle 601, which is fixedly installed on the outer circumferential surface of the rotating column 6; and a torsion spring 9, which is disposed at the contact point between the coal baffle 8 and the rotating shaft of the coal crushing box 4.

[0065] During operation, in the initial state, the limit baffle 601 blocks the outer surface of the coal baffle 8, as shown in the attached diagram. Figure 3 As shown, the torsion spring 9 is in a torsional state at this time. When the coal crushing box 4 rotates to the uppermost side and corresponds to the external conveyor belt, the control rotating column 6 rotates. The rotating column 6 drives the limiting baffle 601 on its outer surface away from the coal baffle 8. Then, under the elastic force of the torsion spring 9, the coal baffle 8 will move away from the coal crushing box 4, that is, the discharge port 7 is opened. Subsequently, the coal will fall from the discharge port 7 onto the surface of the external conveyor belt, realizing the function of automatic coal discharge. This avoids the need for staff to lift the coal themselves, reduces the workload, and facilitates the subsequent use of the coal.

[0066] The discharge mechanism further includes: a second rotating column 10, which is rotatably mounted on the lower side of the outer wall of the mounting frame 5, and the second rotating column 10 and the first rotating column 6 are arranged on the same vertical line; a belt 11, which is arranged between the second rotating column 10 and the first rotating column 6; a support plate 12, which is rotatably arranged between the two corresponding mounting frames 5, and the coal crushing box 4 is snapped onto the upper end face of the support plate 12; and a guide unit, which is arranged on the side wall of the mounting frame 5 and is used to control the downward rotation of the support plate 12.

[0067] During operation, as the rotating column 6 rotates, it simultaneously drives the rotating column 10 to rotate via the belt 11. Subsequently, under the action of the rotating column 10 and the guide unit, the support plate 12 can be deflected at a certain angle, causing the coal crushing box 4 above it to tilt downwards. As a result, the coal inside the coal crushing box 4 will fall along its inclined surface into the external conveyor belt, thus accelerating the discharge of coal.

[0068] Reference Figures 4 to 12 As shown, the guiding unit includes: a guide frame 13, wherein two guide frames 13 are provided on the surface of a set of mounting frames 5, and are respectively provided on the lower side of the two side walls of the mounting frame 5; a sliding pin 14, which is slidably installed inside the guide frame 13, and the end of the sliding pin 14 contacts the front side of the lower end face of the support plate 12; a limiting spring 15, which is sleeved on the outer peripheral surface of the sliding pin 14, and the limiting spring 15 is provided inside the guide frame 13, one end of the limiting spring 15 is connected to the side wall of the guide frame 13, and the other end is connected to the surface of the sliding pin 14; a rotating disk 101, which is fixedly installed on the end of the rotating pin 10; and a limiting concave plate 16, which is fixedly installed on the surface of the rotating disk 101, and the limiting concave plate 16 and the sliding pin 14 are arranged at the same horizontal plane, and the end of the limiting concave plate 16 is provided with a circular groove that matches the sliding pin 14.

[0069] During operation, in the initial state, the sliding locking pin 14 is located at the lower end face of the coal crushing box 4, as shown in the attached diagram. Figure 8 As shown, it provides some support for the coal crushing box 4, thus ensuring that the coal crushing box 4 maintains its balance during transportation, and also refers to the attached... Figure 9 As shown, under the pressure of the limiting concave plate 16 on the sliding pin 14, the limiting spring 15 will stretch to a certain extent; when the coal crushing box 4 moves to the uppermost side, and when the rotating column 1 6 and the rotating column 2 10 rotate simultaneously, the rotating column 2 10 will simultaneously drive the rotating disk 101 to rotate. The rotating disk 101 will drive the limiting concave plate 16 on its surface away from the end of the sliding pin 14, so that the sliding pin 14 is no longer limited by the limiting concave plate 16, and refer to the attached... Figure 9 As shown, since one end of the limiting spring 15 is connected to the side wall of the guide frame 13 and the other end is connected to the surface of the sliding pin 14, when one end of the sliding pin 14 is not subject to limiting force, the limiting spring 15 will recover from the stretched state. Therefore, under the recovery of the elastic force of the limiting spring 15, the sliding pin 14 will move away from the lower end face of the coal crushing box 4. Then, under the gravity of the coal crushing box 4, it will drive the support plate 12 on its lower end face to rotate downward, thereby accelerating the falling of coal inside the coal crushing box 4 and bringing convenience to the lifting and conveying of coal.

[0070] Each set of mounting frames 5 has a connecting bracket 17 fixedly installed on its lower end face. A limiting support head 18 is fixedly installed on the surface of the connecting bracket 17, and the upper end of the limiting support head 18 faces the lower end face of the support plate 12.

[0071] During operation, when the coal crushing box 4 rotates downwards due to its own gravity, the limiting support head 18 will exert a certain limiting force on the bottom of the support plate 12 to prevent the support plate 12 from rotating too much and causing the coal crushing box 4 to fall off. This has a beneficial effect on the lifting of the coal crusher.

[0072] Each set of mounting frames 5 has a dustproof frame 19 rotatably mounted on both sides of the frame. The shape of the dustproof frame 19 is adapted to the shape of the support plate 12. Both sides of the support plate 12 are equipped with a linkage rod 20. The end of the linkage rod 20 away from the support plate 12 is rotatably connected to the lower wall of the dustproof frame 19.

[0073] When working, refer to the appendix Figure 11 As shown, when the support plate 12 rotates downward, it will drive the dustproof frame 19 to rotate downward through the linkage rod 20, so that the dustproof frame 19 is always outside the discharge port 7, which can block the dust generated during the conveying of coal and reduce the coal dust from falling everywhere.

[0074] The drive mechanism includes: a drive gear 21, which is fixedly installed at the end of the rotating shaft 2; and an incomplete gear 22, which is rotatably installed inside the lifting seat 1. The incomplete gear 22 is meshed with the drive gear 21, and the end of the incomplete gear 22 is connected to the output end of an external motor.

[0075] During operation, before the rotating shaft 2 drives the mounting bracket 3 and the coal crushing box 4 to rotate, the external motor drives the incomplete gear 22 to rotate. When the ratchet on the surface of the incomplete gear 22 meshes with the drive gear 21, the drive gear 21 will drive the rotating shaft 2 and the coal crushing box 4 to rotate. At this time, the coal crushing box 4 will also move to the top and correspond to the external conveyor belt. When the ratchet on the surface of the incomplete gear 22 contacts the drive gear 21 again and rotates, the coal material inside the top coal crushing box 4 will be discharged. After that, the subsequent coal crushing boxes 4 will continue to discharge material in the same way. This design can facilitate the continuous lifting and discharge of the coal crushing box 4.

[0076] See attached document Figure 1 As shown, one end of the rotating shaft 2 extends out of the end of the incomplete gear 22 and rotates within the fixed bracket of the lifting seat 1, while the other end extends into another fixed bracket. In this way, when each coal crushing box 4 is operating and unloading, the stability and balance of the entire rotating shaft 2 can be ensured, making operation more convenient.

[0077] Each coal crushing box 4 has a contact point 23 mounted on its upper surface via a support rod, and a contact point 24 mounted on the surface of the lifting seat 1 via a bracket. During the rotation of the coal crushing box 4, the contact point 23 on its surface will contact the contact point 24. During operation, when the coal crushing box 4 moves to the uppermost side, the contact point 23 of the coal crushing box 4 will contact the contact point 24. At this time, the external circuit is connected, which will control the rotation of the rotating column 6 to rotate and discharge material as shown in the above operation.

[0078] After one discharge is completed and the coal crushing box 4 rotates to the bottom again, the operator first manually rotates the support plate 12 to maintain the balance of the coal crushing box 4, so that the sliding pin 14 and the groove on the lower end of the support plate 12 are flush. Then the rotating disk 101 reverses, so that the rotating disk 101 drives the limiting concave plate 16 to rotate synchronously, and the limiting concave plate 16 presses the end of the sliding pin 14 again, so that the sliding pin 14 moves to the lower end of the support plate 12.

[0079] The staff then feeds the uncrushed coal into the coal crushing box 4 through the discharge port 7, and manually controls the coal baffle 8 to rotate and press against the outer surface of the discharge port 7. Then, the rotating column 6 is reversed so that the limiting baffle 601 on its surface presses against the outer surface of the coal baffle 8 again. This facilitates the subsequent lifting of the coal crushing box 4 and the continued feeding of coal.

[0080] During operation, uncrushed coal is fed into the coal crushing box 4, and the coal is crushed by the crushing mechanism inside the coal crushing box 4. The crushing method here is existing technology and will not be described in detail in this embodiment of the invention. When it is necessary to lift the coal crushing box 4, the lower coal crushing box 4 is rotated to the highest side by controlling the drive mechanism, so that the coal crushing box 4 on the highest side contacts the external conveyor belt. Then, the coal material inside the coal crushing box 4 is discharged by the discharge mechanism. The operation is relatively convenient and the lifting process is safe. When the lower coal crushing box 4 is rotated to the uppermost side by the drive mechanism, since the mounting frame 5 and the coal crushing box 4 inside it rotate between two adjacent fixed round rods 301, the coal crushing box 4 is kept in a balanced state due to its gravity during the lifting process, thereby ensuring that the coal crushing box 4 is in a safe state during the lifting and ensuring the normal use of subsequent coal materials.

[0081] In the initial state, the limiting baffle 601 is positioned against the outer surface of the coal baffle 8, as shown in the attached diagram. Figure 3 As shown, the torsion spring 9 is in a torsional state at this time. When the coal crushing box 4 rotates to the uppermost side and corresponds to the external conveyor belt, the control column 6 rotates. The control column 6 drives the limiting baffle 601 on its outer surface away from the coal baffle 8. Then, under the elastic force of the torsion spring 9, the coal baffle 8 will move away from the coal crushing box 4, that is, the discharge port 7 is opened. Then the coal will fall from the discharge port 7 to the surface of the external conveyor belt, realizing the function of automatic coal discharge. This avoids the need for workers to lift the coal themselves, reduces the workload, and facilitates the subsequent use of the coal. When the control column 6 rotates, the control column 6 will simultaneously drive the control column 10 to rotate through the belt 11. Then, under the action of the control column 10 and the guide unit, the support plate 12 can be deflected at a certain angle, so that the support plate 12 drives the coal crushing box 4 above it to tilt downward. Thus, the coal inside the coal crushing box 4 will fall along its inclined surface into the external conveyor belt, which can speed up the discharge of the coal.

[0082] In the initial state, the sliding pin 14 is located at the lower end face of the coal crushing box 4, as shown in the attached diagram. Figure 8 As shown, it provides some support for the coal crushing box 4, thus ensuring that the coal crushing box 4 maintains its balance during transportation, and also refers to the attached... Figure 9As shown, under the pressure of the limiting concave plate 16 on the sliding pin 14, the limiting spring 15 will stretch to a certain extent; when the coal crushing box 4 moves to the uppermost side, and when the rotating column 1 6 and the rotating column 2 10 rotate simultaneously, the rotating column 2 10 will simultaneously drive the rotating disk 101 to rotate. The rotating disk 101 will drive the limiting concave plate 16 on its surface away from the end of the sliding pin 14, so that the sliding pin 14 is no longer limited by the limiting concave plate 16, and refer to the attached... Figure 9 As shown, since one end of the limiting spring 15 is connected to the side wall of the guide frame 13 and the other end is connected to the surface of the sliding pin 14, when one end of the sliding pin 14 is not subject to limiting force, the limiting spring 15 will recover from its stretched state. Therefore, under the recovery of the elastic force of the limiting spring 15, the sliding pin 14 will move away from the lower end face of the coal crushing box 4. Then, under the gravity of the coal crushing box 4, it will drive the support plate 12 on its lower end face to rotate downwards, thereby accelerating the falling of coal inside the coal crushing box 4 and bringing convenience to the lifting and conveying of coal. When the coal crushing box 4 rotates downwards due to the gravity of the support plate 12, the limiting support head... Under the action of 18, the limiting support head 18 will give a certain limiting force to the bottom of the support plate 12, so as to avoid the problem of the coal crushing box 4 falling off due to excessive rotation of the support plate 12. This brings a beneficial effect to the lifting of the coal crusher. After the discharge is completed and the coal crushing box 4 rotates to the bottom again, the worker puts the uncrushed coal into the coal crushing box 4 and controls the coal crushing box 4 to rotate to a horizontal state. The coal baffle 8 is pressed against the outer surface of the discharge port 7 again, and the limiting baffle 601 is pressed against the outer surface of the coal baffle 8 again. This makes it convenient to continue to lift the coal crushing box 4 and continue to feed the coal.

[0083] After one discharge is completed and the coal crushing box 4 rotates to the bottom again, the operator first manually rotates the support plate 12 to maintain the balance of the coal crushing box 4, so that the sliding pin 14 and the groove on the lower end of the support plate 12 are flush. Then the rotating disk 101 reverses, so that the rotating disk 101 drives the limiting concave plate 16 to rotate synchronously, and the limiting concave plate 16 presses the end of the sliding pin 14 again, so that the sliding pin 14 moves to the lower end of the support plate 12.

[0084] The staff then feeds the uncrushed coal into the coal crushing box 4 through the discharge port 7, and manually controls the coal baffle 8 to rotate and press against the outer surface of the discharge port 7. Then, the rotating column 6 is reversed so that the limiting baffle 601 on its surface presses against the outer surface of the coal baffle 8 again. This facilitates the subsequent lifting of the coal crushing box 4 and the continued feeding of coal.

[0085] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A coal pulverizer lift device, characterized by: The utility model relates to a coal powder crushing device, which comprises the following components: a lifting seat (1) composed of two fixed supports; a rotating shaft (2) rotatably installed between the two fixed supports of the lifting seat (1); a plurality of mounting supports (3) fixedly installed in a circumferential array on the outer circumferential surface of the rotating shaft (2); a plurality of coal powder crushing boxes (4) rotatably arranged between each group of mounting supports (3), with the uppermost coal powder crushing box (4) in contact with an external conveying belt; a balancing mechanism arranged inside the mounting support (3) for maintaining the balance of the coal powder crushing box (4) during lifting; an outlet mechanism arranged outside the coal powder crushing box (4) for automatically discharging the coal in the coal powder crushing box (4); a driving mechanism arranged inside the lifting seat (1) for intermittently rotating the rotating shaft (2); the outlet mechanism comprises: a rotating column (6) rotatably installed on the upper side of the mounting frame (5), with the end of the rotating column (6) connected to the output end of a motor; an outlet (7) formed on the front end surface of the coal powder crushing box (4); a coal blocking frame (8) rotatably installed on the front end surface of the coal powder crushing box (4), which is used for shielding the outlet (7) and is shaped to match the shape of the outlet (7); a limiting baffle (601) fixedly installed on the outer circumferential surface of the rotating column (6); a torsional spring (9) arranged at the contact position between the coal blocking frame (8) and the rotating shaft of the coal powder crushing box (4); the outlet mechanism further comprises: a rotating column (10) rotatably installed on the lower side of the outer wall of the mounting frame (5), which is arranged on the same vertical line as the rotating column (6); a belt (11) arranged between the rotating column (10) and the rotating column (6); a support plate (12) rotatably arranged between the two mounting frames (5), with the coal powder crushing box (4) clamped to the upper end surface of the support plate (12); a guide unit arranged on the side wall of the mounting frame (5), which is used for controlling the downward rotation of the support plate (12); the guide unit comprises: a guide frame (13) arranged on the lower side of the two side walls of the mounting frame (5); a sliding clamping column (14) slidably installed in the guide frame (13), with the end of the sliding clamping column (14) in contact with the front lower end surface of the support plate (12). A limiting spring (15) is sleeved on the outer circumferential surface of the sliding clamping column (14) and is arranged in the guide frame (13). One end of the limiting spring (15) is connected with the side wall of the guide frame (13), and the other end is connected with the surface of the sliding clamping column (14); A rotating disc (101) is fixedly installed at the end of the rotating column two (10); A limiting concave plate (16) is fixedly installed on the surface of the rotating disc (101). The limiting concave plate (16) is arranged in the same horizontal plane as the sliding clamping column (14). The end of the limiting concave plate (16) is provided with a circular groove matched with the sliding clamping column (14); Further comprising: Two dustproof frames (19) are arranged. The dustproof frames (19) are rotatably installed on the two side walls of the mounting frame (5). The shape of the dustproof frame (19) is matched with the shape of the supporting plate (12). A linkage rod (20) is installed on the two side walls of the supporting plate (12). The end of the linkage rod (20) away from the supporting plate (12) is rotatably connected with the lower wall of the dustproof frame (19).

2. A coal pulverizer lift assembly according to claim 1, wherein: The balancing mechanism comprises: A plurality of fixed circular rods (301) are arranged between each mounting bracket (3); An installation frame (5) is arranged outside the coal crushing box (4). The installation frame (5) is provided with a placing groove matched with the coal crushing box (4). The installation frame (5) is rotatably arranged between the two horizontal fixed circular rods (301).

3. A coal pulverizer lift assembly as claimed in claim 2, wherein: Comprising: Two limiting circular rings (501) are fixedly installed on the two side walls of the installation frame (5). A limiting ring groove (502) is formed in the inner wall of the limiting circular ring (501). The end of the fixed circular rod (301) is rotatably installed in the limiting ring groove (502) through a circular plate (302).

4. A coal pulverizer lift assembly according to claim 1, wherein: Comprising: A connecting bracket (17) is fixedly installed on the lower end surface of the installation frame (5). A limiting support head (18) is fixedly installed on the surface of the connecting bracket (17). The upper end of the limiting support head (18) faces the lower end surface of the supporting plate (12).

5. A coal pulverizer lift assembly as claimed in claim 4, wherein: The driving mechanism comprises: A driving gear (21) is fixedly installed at the end of the rotating shaft (2) An incomplete gear (22) is rotatably installed in the lifting seat (1). The incomplete gear (22) is in meshing connection with the driving gear (21). The end of the incomplete gear (22) is connected with the output end of the external motor.

6. A coal pulverizer lift assembly according to claim 5, wherein: The driving mechanism further comprises: A plurality of contact points one (23) are arranged on the upper end surface of each coal crushing box (4). The second contact (24) is installed on the surface of the lifting seat (1) through a support, and the first contact (23) on the surface of the coal crushing box (4) contacts the second contact (24) during rotation.

Images