Crushing and grinding equipment for coal raw material processing

Abstract

The invention discloses crushing and grinding equipment for coal raw material processing, and relates to the technical field of coal grinding, the crushing and grinding equipment comprises a sealing cover, the outer wall of the sealing cover is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a belt pulley, and the first motor is in transmission connection with an eccentric shaft through the belt pulley; through the arrangement of the partition feeding mechanism, a first eccentric wheel and a second eccentric wheel are arranged in a water drop shape, and the sides, close to the rotating shaft, of the first eccentric wheel and the second eccentric wheel are narrow, so that a sliding column moves at the position at a high speed, and the sides, away from the rotating shaft, of the first eccentric wheel and the second eccentric wheel move at a low speed; and finally, the upper sealing plate can be driven to move firstly, and then the lower sealing plate is driven to move, so that the coal in the top area of the feeding box falls into the middle area firstly and then falls continuously, the effect that the height difference of the coal falling every time is reduced is achieved, the situation that the feeding box is abraded due to too large gravity acceleration is avoided, and the service life of the feeding box is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of coal grinding, in particular to a crushing and grinding device for processing coal raw materials. Background Art

[0002] Coal raw material processing crushing and grinding equipment refers to mechanical equipment used to crush and grind coal raw materials to facilitate further processing and utilization of coal. When crushing coal raw materials, jaw crushers are usually used. The eccentric shaft is used to make the movable jaw reciprocate back and forth, and then change the angle between the toggle plate and the movable jaw. The coal is squeezed, bent and split between the jaw plates and crushed, and large pieces of coal raw materials are broken into smaller pieces.

[0003] In the prior art, a belt feeder is usually used for feeding a jaw crusher. The structure of the belt feeder includes a belt, a driving roller, a tensioning device and a control device. The raw materials are continuously transported from the storage bin to the crusher through the belt. Although the belt feeder is stable in operation and has high conveying efficiency, the belt is easy to wear and has high maintenance costs. If the belt breaks due to wear, it is easy to injure workers by mistake. There are also certain restrictions on the size of the material. For coal raw materials of irregular shapes and sizes, the transportation effect is average, which may accelerate the wear of the belt and reduce its service life. In addition, when unloading, the belt feeder generally transports the material from a low place to the top of the crusher, and the coal falls freely into the movable jaw. On the one hand, the energy consumed in transportation is large, and on the other hand, the impact force of the coal after falling due to gravity acceleration is also strong, which increases the vibration intensity of the crusher and aggravates the generation of environmental noise.

[0004] In addition, during the high-speed operation of the crusher, material splashing may occur, causing environmental pollution and personnel safety risks. The current jaw crushers usually use belt feeders to feed materials. The dust and splashes at the feeding port require additional dust removal mechanisms, which increases production costs. In addition, during the crushing process, it is difficult for the belt feeder to accurately control the feeding speed and amount in real time. When the coal raw materials are inconsistent in size or the materials are piled up, they cannot be adjusted in time and accurately, resulting in reduced production efficiency.

[0005] In view of this, the present invention proposes a crushing and grinding device for processing coal raw materials to make up for and improve the shortcomings of the prior art. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a crushing and grinding equipment for processing coal raw materials, which can improve the service life of the feeding box; can reduce the environmental noise; and can control the precise feeding in real time, so as to solve the corresponding technical problems raised in the above background technology.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is: a crushing and grinding equipment for processing coal raw materials, including a sealing cover, the outer wall of the sealing cover is fixedly connected to a first motor, the output end of the first motor is fixedly connected to a pulley, the first motor is connected to an eccentric shaft through a pulley transmission, and also includes: a partition feeding mechanism, a delay switch mechanism and a precise unloading mechanism;

[0008] The partition feeding mechanism is used to feed the coal raw material in a quantitative manner in partitions, and to reduce stress by using components arranged in reverse;

[0009] The delay switch mechanism is used to cooperate with the partition feeding mechanism to form a switch time difference when unloading;

[0010] The precise feeding mechanism is used to adjust the feeding amount according to the size of the coal raw material to prevent splashing.

[0011] Preferably, the partition feeding mechanism includes a support frame fixedly connected to the top of the sealing cover, a second motor is fixedly connected to the top of the support frame, a rotating shaft is fixedly connected to the output end of the second motor, a side of the rotating shaft away from the second motor is rotatably connected to the support frame, a first eccentric wheel is fixedly connected to one side of the outer wall of the rotating shaft, a second eccentric wheel is fixedly connected to the other side of the outer wall of the rotating shaft, and a sliding groove is provided on the side where the first eccentric wheel and the second eccentric wheel are close to each other.

[0012] Preferably, the partition feeding mechanism also includes a sliding column slidably connected to the inner walls of the first eccentric wheel and the second eccentric wheel, the inner diameter of the sliding groove is adapted to the outer diameter of the sliding column, and the ends of the two sliding columns close to each other are fixedly connected with L-shaped rods, and the bending parts of the L-shaped rods are relatively arranged.

[0013] Preferably, the delay switch mechanism includes a feeding box fixedly connected to the top edge of the sealing cover, a visual window fixedly connected to the middle outer wall of the feeding box, a pair of material guide plates fixedly connected to the upper and lower sides of the inner wall of the feeding box, an upper sealing plate slidingly connected to the bottom of the upper material guide plate, and a lower sealing plate slidingly connected to the bottom of the lower material guide plate, the upper sealing plate and the lower sealing plate are respectively fixedly connected to the outer walls of two L-shaped rods on one side close to the second motor, and the L-shaped rods slide through the inner wall of the feeding box.

[0014] Preferably, the precise feeding mechanism includes a baffle rotatably connected to the top of the sealing cover, an anti-collision pad is fixedly connected to the inner wall of the top of the sealing cover, the top of the baffle rotates through the outer wall of the sealing cover and is fixedly connected to a knob, the outer wall of the knob is fixedly connected to a one-way tooth, a convex strip is fixedly connected to the side of the knob away from the sealing cover, the convex strip is vertical and consistent with the angle of the baffle, and an angle scale is opened on the outer wall of the top of the sealing cover, and the angle scale takes the center of the knob as the center of the circle.

[0015] Preferably, the precise feeding mechanism also includes a tooth groove arc plate clamped on the outer wall of the one-way tooth, a threaded column is rotatably connected to the middle part of the tooth groove arc plate, the outer wall of the threaded column is threadedly connected to a limiting plate, the outer wall of the limiting plate is fixedly connected to the outer wall of the sealing cover, and a handwheel is fixedly connected to the side of the threaded column away from the tooth groove arc plate.

[0016] Preferably, the tooth groove arc plate is slidably connected to the outer wall of the sealing cover, and the limit plate, the threaded column and the tooth groove arc plate are all inclined and the inclination angle is consistent with the tooth tangent angle of the one-way tooth.

[0017] Preferably, a bevel portion is provided on a side of the upper sealing plate close to the L-shaped rod, and a bevel portion is also provided on a side of the lower sealing plate away from the L-shaped rod.

[0018] Preferably, the first eccentric wheel and the second eccentric wheel are both teardrop-shaped and symmetrically arranged with the rotating shaft as the axis, the side where the first eccentric wheel and the second eccentric wheel are close to each other is narrow, and the side where the first eccentric wheel and the second eccentric wheel are away from each other is wide.

[0019] Preferably, the middle part of the eccentric shaft is rotatably connected to a movable jaw, the bottom of the movable jaw is rotatably connected to an elastic telescopic rod, the side of the elastic telescopic rod away from the movable jaw is fixedly connected to the inner wall of the eccentric shaft, and the sides of the movable jaw and the eccentric shaft close to each other are fixedly connected to a toggle plate.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. When feeding, directly put the coal raw materials into the feeding box to avoid the pulley from continuously feeding and consuming more energy. Through the setting of the partitioned feeding mechanism, the first eccentric wheel and the second eccentric wheel are set in a teardrop shape, and the side close to the rotating shaft is narrow, so the sliding column moves faster here, and on the contrary, the side away from the rotating shaft moves slower. Finally, it can first drive the upper sealing plate to move, and then drive the lower sealing plate to move, so that the coal in the top area of ​​the feeding box first falls into the middle area, and then continues to fall, so as to achieve the effect of reducing the height difference of the coal each time it falls, avoiding the situation where the feeding box is worn due to excessive gravity acceleration, and prolonging its service life;

[0022] 2. By delaying the setting of the upper and lower sealing plates in the switch mechanism, the oppositely arranged beveled sides of the two sealing plates can squeeze and separate the coal raw materials, and move in sequence to create gaps between the areas in the box, which is conducive to the stability of the switch. At the same time, the upper and lower sealing plates move in opposite directions to open and close the feeding, so that the extrusion stress of the two plates and the coal is in opposite directions and offsets each other, thereby reducing the vibration caused by the extrusion stress, achieving the purpose of reducing the environmental noise, and making the internal force of the sealing cover uniform, reducing the shaking of the sealing cover, and preventing the loose installation caused by the shaking of the box due to uneven force;

[0023] 3. During the falling process, through the setting of the precise feeding mechanism, the staff can adjust the baffle angle according to the size of the raw materials, so as to achieve the effect of real-time control of precise feeding, so that the feeding speed and feeding amount can adapt to the processing capacity of the jaw crusher, and prevent the accumulation of materials from affecting the crushing efficiency. In addition, through the double protection of the anti-collision pad and the sealing cover, the splashing carbon blocks can be discharged from the bottom of the sealing cover, and the dust during feeding and crushing can also be collected by the sealing cover, which can effectively maintain the cleanliness of the working environment and the personal safety of the personnel, while reducing the cost of adding dust removal equipment;

[0024] 4. By setting the tooth-groove arc plate, the position of the adjustment baffle can be effectively fixed. Since the tooth-groove arc plate is inclined and the inclination angle is consistent with the tangent angle of the tooth of the one-way tooth, and the tooth-groove arc plate is rotatably connected to the threaded column, the angle of the tooth-groove arc plate can be easily adjusted to be clamped on the outer wall of the one-way tooth, so that the adjustment baffle can only rotate counterclockwise, and the impact of the blanking material will not cause the position of the adjustment baffle to change, which is beneficial to increase the stability of the adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0026] Figure 2 It is a schematic diagram of a side-view stereoscopic structure of the present invention;

[0027] Figure 3 A three-dimensional cross-sectional view of the present invention;

[0028] Figure 4 The present invention shows Figure 1 The enlarged structural diagram at A in the middle;

[0029] Figure 5 It is a structural schematic diagram of the rotating shaft connection shown in the present invention;

[0030] Figure 6 It is a three-dimensional cross-sectional view of the connection of the guide plate shown in the present invention;

[0031] Figure 7It is a structural schematic diagram of the sliding column connection shown in the present invention;

[0032] Figure 8 The present invention shows Figure 1 The enlarged structural diagram at B in the middle;

[0033] Fig. 9 The present invention shows Figure 3 Schematic diagram of the enlarged structure at point C in the middle.

[0034] The numbers in the figure are:

[0035] 1. Sealing cover; 2. Eccentric shaft; 3. First motor; 4. Elastic telescopic rod; 5. Moving jaw; 6. Toggle plate;

[0036] 7. Partition feeding mechanism; 71. L-shaped rod; 72. First eccentric wheel; 73. Second eccentric wheel; 74. Slide; 75. Second motor; 76. Support frame; 77. Slide column; 78. Rotating shaft;

[0037] 8. Delay switch mechanism; 81. Material guide plate; 82. Material feeding box; 83. Visual window; 84. Upper sealing plate; 85. Lower sealing plate;

[0038] 9. Precision feeding mechanism; 91. Knob; 92. Angle scale; 93. Baffle; 94. Tooth arc plate; 95. Threaded column; 96. Limit plate; 97. Hand wheel; 98. One-way teeth; 99. Raised strip; 910. Anti-collision pad. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Embodiments of the present invention

[0041] Please refer to Figures 1 to 9 As shown, a crushing and grinding device for processing coal raw materials includes a sealing cover 1, a first motor 3 is fixedly connected to the outer wall of the sealing cover 1, a pulley is fixedly connected to the output end of the first motor 3, and the first motor 3 is connected to the eccentric shaft 2 through the pulley transmission, and also includes: a partition feeding mechanism 7, a delay switch mechanism 8 and a precise unloading mechanism 9;

[0042] The partition feeding mechanism 7 is used to feed the coal raw material in a quantitative manner in different partitions, and to reduce stress by using components arranged in reverse;

[0043] The delay switch mechanism 8 is used to cooperate with the partition feeding mechanism 7 to form a switch time difference when unloading;

[0044] The precise feeding mechanism 9 is used to adjust the feeding amount according to the size of the coal raw material to prevent splashing;

[0045] The partition feeding mechanism 7 includes a support frame 76 fixedly connected to the top of the sealing cover 1, a second motor 75 is fixedly connected to the top of the support frame 76, a rotating shaft 78 is fixedly connected to the output end of the second motor 75, a side of the rotating shaft 78 away from the second motor 75 is rotatably connected to the support frame 76, a first eccentric wheel 72 is fixedly connected to one side of the outer wall of the rotating shaft 78, a second eccentric wheel 73 is fixedly connected to the other side of the outer wall of the rotating shaft 78, and a sliding groove 74 is provided on the side where the first eccentric wheel 72 and the second eccentric wheel 73 are close to each other;

[0046] The partition feeding mechanism 7 also includes a slide post 77 slidably connected to the inner wall of the first eccentric wheel 72 and the second eccentric wheel 73. The inner diameter of the slide groove 74 is adapted to the outer diameter of the slide post 77. The ends of the two slide posts 77 close to each other are fixedly connected to an L-shaped rod 71, and the bending parts of the L-shaped rod 71 are arranged opposite to each other.

[0047] The first eccentric wheel 72 and the second eccentric wheel 73 are both teardrop-shaped and are symmetrically arranged with the rotating shaft 78 as the axis. The side where the first eccentric wheel 72 and the second eccentric wheel 73 are close to each other is narrow, and the side where the first eccentric wheel 72 and the second eccentric wheel 73 are away from each other is wide.

[0048] The middle part of the eccentric shaft 2 is rotatably connected with a movable jaw 5, the bottom of the movable jaw 5 is rotatably connected with an elastic telescopic rod 4, the side of the elastic telescopic rod 4 away from the movable jaw 5 is fixedly connected to the inner wall of the eccentric shaft 2, and the sides of the movable jaw 5 and the eccentric shaft 2 close to each other are fixedly connected with a toggle plate 6;

[0049] The top L-shaped rod 71 is used to push the upper sealing plate 84 away from the second motor 75 , and the bottom L-shaped rod 71 is used to pull the lower sealing plate 85 toward the second motor 75 .

[0050] The effects achieved by this embodiment are as follows: In the prior art, the belt of the belt feeder is easy to wear and has a high maintenance cost. If the wear leads to breakage, it is easy to accidentally injure the staff. There are also certain restrictions on the size of the material. For coal raw materials of irregular shapes and sizes, the transportation effect is general, which may accelerate the wear of the belt and reduce its service life. Compared with the prior art, through the implementation of this embodiment, the partition feeding mechanism 7 can utilize the teardrop-shaped setting of the first eccentric wheel 72 and the second eccentric wheel 73, so that the coal in the top area of ​​the feeding box 82 falls into the middle area first, and then continues to fall, so as to achieve the effect of reducing the height difference of the coal each time it falls, avoiding the situation where the feeding box 82 is worn due to excessive gravity acceleration, and improving its service life.

[0051] Further examples:

[0052] Please refer to Figure 1 , Figure 3 and Figure 6 As shown, the delay switch mechanism 8 includes a feed box 82 fixedly connected to the top edge of the sealing cover 1, a visual window 83 is fixedly connected to the middle outer wall of the feed box 82, a pair of guide plates 81 are fixedly connected to the upper and lower sides of the inner wall of the feed box 82, an upper sealing plate 84 is slidably connected to the bottom of the upper guide plate 81, and a lower sealing plate 85 is slidably connected to the bottom of the lower guide plate 81, and the upper sealing plate 84 and the lower sealing plate 85 are fixedly connected to the outer walls of the two L-shaped rods 71 ​​on one side close to the second motor 75, and the L-shaped rods 71 ​​are slidably penetrated through the inner wall of the feed box 82;

[0053] The upper sealing plate 84 is provided with a beveled edge portion on a side close to the L-shaped rod 71, and the lower sealing plate 85 is also provided with a beveled edge portion on a side away from the L-shaped rod 71;

[0054] Among them, the material guide plates 81 are all inclined relative to the feeding box 82, the material guide plates 81 are lower near the upper sealing plate 84, and the material guide plates 81 are higher near the inner wall of the feeding box 82.

[0055] The effects achieved by this embodiment are as follows: In the prior art, when unloading, the belt feeder generally transports the material from a low place to the top of the crusher, and the coal falls freely into the movable jaw 5. On the one hand, the energy consumed in transportation is relatively large, and on the other hand, the impact force of the coal after falling due to gravity acceleration is also relatively strong, which increases the vibration intensity of the crusher and aggravates the generation of environmental noise. Compared with the prior art, through the implementation of this embodiment, the delay switch mechanism 8 is set to enable the upper sealing plate 84 and the lower sealing plate 85 to move in opposite directions, opening and closing the unloading, so that the extrusion stress of the two plates and the coal is opposite in direction and offsets each other, thereby reducing the vibration caused by the extrusion stress and achieving the purpose of reducing the generation of environmental noise.

[0056] Further examples:

[0057] Please refer to Figure 1 , Figure 3 , Figure 8 and Fig. 9 As shown, the precise feeding mechanism 9 includes a baffle 93 rotatably connected to the top of the sealing cover 1, an anti-collision pad 910 is fixedly connected to the inner wall of the top of the sealing cover 1, the top of the baffle 93 rotates through the outer wall of the sealing cover 1 and is fixedly connected to a knob 91, the outer wall of the knob 91 is fixedly connected to a one-way tooth 98, a convex strip 99 is fixedly connected to the side of the knob 91 away from the sealing cover 1, the convex strip 99 is vertical and consistent with the angle of the baffle 93, an angle scale 92 is opened on the outer wall of the top of the sealing cover 1, and the angle scale 92 takes the center of the knob 91 as the center of the circle;

[0058] The precise feeding mechanism 9 also includes a toothed arc plate 94 clamped on the outer wall of the one-way tooth 98, a threaded column 95 is rotatably connected to the middle of the toothed arc plate 94, the outer wall of the threaded column 95 is threadedly connected to a limit plate 96, the outer wall of the limit plate 96 is fixedly connected to the outer wall of the sealing cover 1, and a hand wheel 97 is fixedly connected to the side of the threaded column 95 away from the toothed arc plate 94;

[0059] The tooth groove arc plate 94 is slidably connected to the outer wall of the sealing cover 1, and the limit plate 96, the threaded column 95 and the tooth groove arc plate 94 are all inclined, and the inclination angle is consistent with the tooth tangent angle of the one-way tooth 98;

[0060] The anti-collision pad 910 is located on the top of the movable jaw 5 to prevent the carbon raw material from splashing and hitting the sealing cover 1.

[0061] The effects achieved by this embodiment are as follows: In the prior art, dust and splashes at the feed port require additional dust removal mechanisms, which increases production costs, and during the crushing process, it is difficult for the belt feeder to accurately control the feeding speed and amount in real time. When the coal raw materials are inconsistent in size or the materials are piled up, they cannot be adjusted in time and accurately, resulting in a decrease in production efficiency. Compared with the prior art, through the implementation of this embodiment, a precise feeding mechanism 9 is set to be able to adjust the angle of the baffle 93 according to the size of the raw materials, so as to achieve the effect of real-time control of precise feeding, and through the double protection of the anti-collision pad 910 and the sealing cover 1, the splashing carbon blocks can be concentrated and discharged from the bottom of the sealing cover 1, and the dust during feeding and crushing can also be gathered by the sealing cover 1, which can effectively maintain the cleanliness of the working environment and the personal safety of personnel.

[0062] The complete usage steps and working principle of the above embodiment are as follows:

[0063] In the initial state: the upper sealing plate 84 and the lower sealing plate 85 are both located in the middle of the feeding box 82, the sliding column 77 on the second eccentric wheel 73 is close to the rotating shaft 78, and the sliding column 77 on the first eccentric wheel 72 is far away from the rotating shaft 78, the second eccentric wheel 73 and the first eccentric wheel 72 are in a horizontal state, the tooth groove arc plate 94 is in a state of being clamped on the one-way tooth 98, the limit plate 96 is located on the side of the threaded column 95 close to the hand wheel 97, and the baffle 93 is in a natural vertical state.

[0064] When in use, first pour the coal raw material onto the top of the feeding box 82. The staff can start the second motor 75 and the first motor 3 through the external control system. The second motor 75 can drive the rotating shaft 78 to rotate, and then the rotating shaft 78 drives the first eccentric wheel 72 and the first eccentric wheel 73 to rotate synchronously. Since the first eccentric wheel 72 and the second eccentric wheel 73 are symmetrically arranged with the rotating shaft 78 as the axis, and the side close to each other is narrow and the side away from each other is wide, when the sliding column 77 located on the second eccentric wheel 73 slides along the sliding groove 74, it moves from a position close to the rotating shaft 78 to a position away from the rotating shaft 78, so the upper sealing plate 84 can be driven by the L-shaped rod 71 to move in a direction away from the second motor 75. Similarly, , the sliding column 77 on the first eccentric wheel 72 moves from a position away from the rotating shaft 78 to a position close to the rotating shaft 78, that is, the bottom L-shaped rod 71 will pull the lower sealing plate 85 to move in the direction close to the second motor 75, and then continue to rotate the rotating shaft 78 to 180 degrees to restore the upper sealing plate 84 and the lower sealing plate 85 to their initial state. The upper sealing plate 84 and the lower sealing plate 85 are provided with opposite bevels to separate the coal raw materials, and the upper sealing plate 84 and the lower sealing plate 85 move in opposite directions to open and close the material feeding, so that the extrusion stress of the two plate surfaces and the coal is opposite in direction and offsets each other, thereby reducing the extrusion stress, and also making the internal force of the sealing cover 1 uniform, reducing the shaking of the sealing cover 1;

[0065] Please refer to the above working process Figures 1 to 7 .

[0066] Furthermore, since the first eccentric wheel 72 and the second eccentric wheel 73 are both in a teardrop shape, when the slide column 77 moves, the first eccentric wheel 72 and the second eccentric wheel 73 are narrow on the side close to the rotating shaft 78 and move relatively quickly, while the side away from the rotating shaft 78 is wide and the movement speed of the slide column 77 is relatively slow. When the rotating shaft 78 rotates, the first eccentric wheel 72 and the second eccentric wheel 73 can first drive the upper sealing plate 84 to move, so that the coal raw materials on the top of the feeding box 82 fall along the guide plate 81, and then drive the lower sealing plate 85 to move, so that the coal raw materials in the middle area of ​​the feeding box 82 continue to fall, so that the height difference of the coal falling is reduced, and then the gravity acceleration is reduced, thereby avoiding the situation where the discharge chute is damaged due to excessive impact force, or the material stacking is caused by too fast material discharge speed;

[0067] Please refer to the above working process Figure 1 , Figure 3 and Figure 6 .

[0068] Furthermore, when the coal raw material falls from the bottom of the feeding box 82 into the sealing cover 1, it needs to pass through the baffle 93 first. The staff can adjust the angle of the baffle 93 according to the size of the raw material. If the diameter of the coal raw material block is large, turn the knob 91 counterclockwise. Since the convex strip 99 is vertical and consistent with the angle of the baffle 93, the baffle 93 can be rotated to a suitable angle by referring to the convex strip 99 and observing the angle scale 92. If the diameter of the raw material block is small, it is necessary to turn the hand wheel 97 to drive the threaded column 95 to rotate, thereby pulling the toothed arc plate 94 out of the one-way tooth 98, then turn the knob 91 clockwise to the top, and then turn the hand wheel 97 in the opposite direction to reset the toothed arc plate 94. Since the toothed arc plate 94 is inclined and the inclination angle is consistent with the tooth tangent angle of the one-way tooth 98, and The tooth groove arc plate 94 is rotatably connected with the threaded column 95, so the angle of the tooth groove arc plate 94 can be easily adjusted to be clamped on the outer wall of the one-way tooth 98, and then the knob 91 is turned counterclockwise to accurately adjust the inclination angle of the baffle 93 with reference to the convex strip 99, so as to achieve the effect of real-time control and precise feeding. In addition, because the movable jaw 5 reciprocates forward and backward and up and down, the falling coal raw materials are squeezed and crushed by the toggle plate 6, so there is generally a certain gap between the movable jaw 5 and the baffle 93 in order not to hinder the movement, and the crushed coal is very easy to splash out from this gap. The double protection of the anti-collision pad 910 and the sealing cover 1 can concentrate the splashed carbon blocks and discharge them from the bottom of the sealing cover 1, and the dust during feeding and crushing can also be gathered by the sealing cover 1, which can effectively maintain the personal safety of the staff;

[0069] Please refer to the above working process Figure 1 , Figure 3 , Figure 8 and Fig. 9 .

[0070] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0071] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crushing and grinding device for processing coal raw materials, comprising a sealing cover (1), wherein a first motor (3) is fixedly connected to the outer wall of the sealing cover (1), a pulley is fixedly connected to the output end of the first motor (3), and the first motor (3) is connected to an eccentric shaft (2) through the pulley transmission, characterized in that: It also includes: a partition feeding mechanism (7), a delay switch mechanism (8) and a precise unloading mechanism (9); The partitioned feeding mechanism (7) is used to feed the coal raw material in a quantitative manner in partitions, and to reduce stress by using components arranged in reverse. The delay switch mechanism (8) is used to cooperate with the partition feeding mechanism (7) to form a switch time difference when feeding; The precise feeding mechanism (9) is used to adjust the feeding amount according to the size of the coal raw material to prevent splashing.

2. A coal raw material processing crushing and grinding equipment according to claim 1, characterized in that: The partition feeding mechanism (7) comprises a support frame (76) fixedly connected to the top of the sealing cover (1), a second motor (75) being fixedly connected to the top of the support frame (76), a rotating shaft (78) being fixedly connected to the output end of the second motor (75), a side of the rotating shaft (78) away from the second motor (75) being rotatably connected to the support frame (76), a first eccentric wheel (72) being fixedly connected to one side of the outer wall of the rotating shaft (78), a second eccentric wheel (73) being fixedly connected to the other side of the outer wall of the rotating shaft (78), and a sliding groove (74) being provided on the side where the first eccentric wheel (72) and the second eccentric wheel (73) are close to each other.

3. A coal raw material processing crushing and grinding equipment according to claim 2, characterized in that: The partition feeding mechanism (7) also includes a sliding column (77) slidably connected to the inner walls of the first eccentric wheel (72) and the second eccentric wheel (73), the inner diameter of the sliding groove (74) is adapted to the outer diameter of the sliding column (77), and the ends of the two sliding columns (77) close to each other are fixedly connected to an L-shaped rod (71), and the bending parts of the L-shaped rod (71) are arranged opposite to each other.

4. A coal raw material processing crushing and grinding equipment according to claim 3, characterized in that: The delay switch mechanism (8) comprises a feeding box (82) fixedly connected to the top edge of the sealing cover (1), a visual window (83) fixedly connected to the middle outer wall of the feeding box (82), a pair of material guide plates (81) fixedly connected to the upper and lower sides of the inner wall of the feeding box (82), an upper sealing plate (84) slidably connected to the bottom of the upper material guide plate (81), and a lower sealing plate (85) slidably connected to the bottom of the lower material guide plate (81), the upper sealing plate (84) and the lower sealing plate (85) are respectively fixedly connected to the outer walls of two L-shaped rods (71) on one side close to the second motor (75), and the L-shaped rods (71) are slidably penetrated through the inner wall of the feeding box (82).

5. The coal raw material processing crushing and grinding equipment according to claim 1, characterized in that: The precise unloading mechanism (9) comprises a baffle (93) rotatably connected to the top of the sealing cover (1); an anti-collision pad (910) is fixedly connected to the inner wall of the top of the sealing cover (1); the top of the baffle (93) rotatably penetrates the outer wall of the sealing cover (1) and is fixedly connected to a knob (91); the outer wall of the knob (91) is fixedly connected to a one-way tooth (98); a convex strip (99) is fixedly connected to the side of the knob (91) away from the sealing cover (1); the convex strip (99) is vertical and consistent with the angle of the baffle (93); an angle scale (92) is provided on the outer wall of the top of the sealing cover (1); the angle scale (92) takes the center of the knob (91) as the center of the circle.

6. The coal raw material processing crushing and grinding equipment according to claim 1, characterized in that: The precise material removal mechanism (9) further comprises a tooth groove arc plate (94) clamped on the outer wall of the one-way tooth (98); a threaded column (95) is rotatably connected to the middle of the tooth groove arc plate (94); the outer wall of the threaded column (95) is threadedly connected to a limit plate (96); the outer wall of the limit plate (96) is fixedly connected to the outer wall of the sealing cover (1); and a hand wheel (97) is fixedly connected to the side of the threaded column (95) away from the tooth groove arc plate (94).

7. A coal raw material processing crushing and grinding equipment according to claim 6, characterized in that: The tooth groove arc plate (94) is slidably connected to the outer wall of the sealing cover (1); the limit plate (96), the threaded column (95) and the tooth groove arc plate (94) are all arranged in an inclined manner, and the inclination angle is consistent with the tooth tangent angle of the one-way tooth (98).

8. The coal raw material processing crushing and grinding equipment according to claim 4, characterized in that: A beveled edge portion is provided on a side of the upper sealing plate (84) close to the L-shaped rod (71), and a beveled edge portion is also provided on a side of the lower sealing plate (85) away from the L-shaped rod (71).

9. The coal raw material processing crushing and grinding equipment according to claim 2, characterized in that: The first eccentric wheel (72) and the second eccentric wheel (73) are both teardrop-shaped and are symmetrically arranged with the rotating shaft (78) as the axis; the side where the first eccentric wheel (72) and the second eccentric wheel (73) are close to each other is narrow, and the side where the first eccentric wheel (72) and the second eccentric wheel (73) are far away from each other is wide.

10. The coal raw material processing crushing and grinding equipment according to claim 1, characterized in that: The middle part of the eccentric shaft (2) is rotatably connected to a movable jaw (5), the bottom of the movable jaw (5) is rotatably connected to an elastic telescopic rod (4), the side of the elastic telescopic rod (4) away from the movable jaw (5) is fixedly connected to the inner wall of the eccentric shaft (2), and the sides of the movable jaw (5) and the eccentric shaft (2) close to each other are both fixedly connected to a toggle plate (6).

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