Multi-stage crushing mechanism of feed crusher

Abstract

The utility model discloses a multi-stage crushing mechanism of a feed grinder, which belongs to the technical field of feed production and comprises a feed grinder, a feeding groove, a discharging groove, a guide plate, a receiving box, an electric crushing roller and a crushing block B. The feeding groove is embedded above the feed grinder, and the discharging groove is embedded below the feed grinder. A material receiving box is arranged below the feed grinder and close to the lower portion of the discharging groove, and electric grinding rollers are rotationally arranged on the two sides in the feed grinder through bearings. Corn kernels accumulated at the bottom are continuously scattered by the crushing hammers which rotate continuously, a large number of corn kernels which are repeatedly collided and crushed penetrate through the filter screen frame B and fall into the material receiving box from the inner side of the discharging groove to be collected, and meanwhile the steel wire bristles below the brushing plate are driven by the rotating crushing hammers to continuously brush the inner surface of the filter screen frame B; the filter screen frame B is prevented from being blocked, and after the corn kernel feed is crushed, the worker carries the receiving box to other processing sites to treat the crushed corn kernel feed.

Description

Technical Field

[0001] The utility model belongs to the technical field of feed production, in particular to a multi-stage crushing mechanism of a feed crusher. Background Art

[0002] Feed production is the process of screening, batching, crushing, mixing and granulating feed raw materials to obtain feed required for livestock growth, reproduction and production of various animal products or for service. Since feed crushing requires particles of different specifications, crushing, extrusion crushing and grinding are used to obtain crushed feed particles or powder within the required specification range.

[0003] Among them, it was found through searching that the application number is CN202222479915.8, a feed crushing machine with a multi-stage crushing function, which has a crusher connected to the output end of the feeding unit, and the crusher crushes the output raw materials through two crushing chambers therein, and the two crushing chambers respectively crush the feed raw materials in the first stage and the second stage, so that the crushing processing of the raw materials is more efficient, and the efficient processing is ensured, and the crushing completeness of the raw material processing is also ensured; among them, the shortcomings are as follows:

[0004] When the staff uses the feed crushing machine with multi-stage crushing function to crush the feed, the first crushing chamber 201 crushes the raw materials entering its cavity by using the crushing roller 3, and the second crushing chamber 202 operates by using the grinding block 5, and the raw materials are further ground by using the cooperation of the grinding seat 4 and the grinding block 5. When the feed is crushed by using the crushing roller 3 in the first crushing chamber 201, since the inner wall of the first crushing chamber 201 is a round smooth surface and the crushing teeth of the outer ring of the crushing roller 3 are large, part of the feed cannot be crushed or crushed incompletely, and directly passes through the crushing roller 3 and falls into the second crushing chamber 202, increasing the workload of the second crushing chamber 202, which easily makes the feed crushing efficiency of the feed crushing machine with multi-stage crushing function low. Utility Model Content

[0005] The purpose of the utility model is to provide a multi-stage crushing mechanism for a feed crusher in order to solve the problem of low efficiency of crushing feed in the feed crushing machine with a multi-stage crushing function.

[0006] The technical scheme adopted by the utility model is as follows: a multi-stage crushing mechanism of a feed grinder, comprising a feed grinder, a feeding trough, a discharging trough, a guide plate, a receiving box, an electric crushing roller and a crushing block B, wherein a feeding trough is embedded above the feed grinder, a discharging trough is embedded below the feed grinder, a receiving box is arranged below the feed grinder near the bottom of the discharging trough, electric crushing rollers are rotatably arranged on both sides of the feed grinder through bearings, crushing blocks B are fixedly installed on the outer ring of the electric crushing roller, there are several crushing blocks B, which are equidistantly arranged in parallel in a cone shape and equidistantly arranged around, guide plates are fixedly installed on both sides of the feed grinder near the bottom of the electric crushing roller, a circulating crushing mechanism that can repeatedly crush feed and a collision crushing mechanism that can efficiently crush feed are respectively arranged inside the feed grinder, and a uniform feeding mechanism that can uniformly introduce feed is arranged inside the feeding trough.

[0007] Among them, the uniform feeding mechanism is composed of a servo motor A, a feeding tray, and a feeding trough. A servo motor A is fixedly installed in the front of the feeding trough. The servo motor A is connected to the feeding tray through an output shaft. A feeding trough is embedded in the outer ring of the feeding tray. There are several feeding troughs, which are equidistantly arranged in a trapezoidal shape.

[0008] The circulating crushing mechanism is composed of a crushing block A, a filter rack A, a telescopic rod, a servo motor B, an eccentric wheel, a feeding rack, a guide trough A, a guide trough B, a servo motor C and a spiral feeding rod. The inner wall of the feed grinder is fixedly installed with crushing blocks A near both sides of the electric crushing roller. There are several crushing blocks A, which are arranged in parallel and equidistantly in a cone shape, and are arranged around at an equal distance. Several crushing blocks A and several crushing blocks B are interspersed. A filter rack A is arranged between the lower part of the guide plate inside the feed grinder, and the filter rack A is arranged in an arc shape. The filter rack A is fixedly installed between the upper sides of the filter rack A and the upper part of the inner wall of the feed grinder. There is a telescopic rod, and a spring is arranged on the outside of the telescopic rod. A servo motor B is fixedly installed on both sides of the inner wall of the feed grinder near the filter frame A. The servo motor B is connected with an eccentric wheel through an output shaft. Feed racks are arranged on both sides of the feed grinder. A material guide groove A is embedded between the side of the feed rack and the side of the feed grinder near the filter frame A, and the material guide groove A is arranged in an inclined trapezoidal shape. A servo motor C is fixedly installed on the upper part of the feed rack. The servo motor C is connected with a spiral feeding rod through an output shaft. A material guide groove B is embedded between the side of the feed rack and the side of the feed grinder near the electric crushing roller.

[0009] Among them, the collision and crushing mechanism is composed of a filter frame B, a servo motor D, a breaking rod, a breaking hammer, a breaking block, a cleaning brush plate and wire bristles. The filter frame B is fixedly installed at the lower part of the feed grinder, and the filter frame B is arranged in an arc shape. A servo motor D is fixedly installed behind the inner wall of the feed grinder. The servo motor D is connected to a breaking rod through an output shaft. A breaking hammer is fixedly installed on the outer ring of the breaking rod. There are several breaking hammers, which are equidistantly arranged around. A breaking block is fixedly installed on the side of the breaking hammer. There are several breaking blocks, which are equidistantly arranged in parallel in a cone shape. A cleaning brush plate is fixedly installed on the other side of the breaking hammer. A wire bristle is fixedly installed below the cleaning brush plate. There are several wire bristles, which are arranged in parallel, and the wire bristles extend to the inner side of the filter frame B.

[0010] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0011] 1. The multi-stage crushing mechanism of this feed grinder is equipped with a uniform feeding mechanism, which enables the staff to coordinate between the servo motor A, the feeding tray and the feeding trough, and use the servo motor A to drive several trapezoidal feeding troughs on the outer circle of the feeding tray to rotate slowly, so as to evenly and quantitatively convey a large amount of feed, which is convenient for uniformly conveying corn kernels and can effectively avoid the crushed corn kernels from piling up and causing blockage.

[0012] 2. The multi-stage crushing mechanism of this feed grinder is equipped with a circulating crushing mechanism, which enables the staff to coordinate the crushing block A, filter mesh frame A, telescopic rod, servo motor B, eccentric wheel, feeding rack, guide trough A, guide trough B, servo motor C and spiral feeding rod, and use the servo motor B to drive the eccentric wheel to rotate rapidly, continuously hitting the filter mesh frame A through the telescopic rod and the outer spring to repeatedly expand and contract, drive the filter mesh frame A to shake at a high frequency, and guide the incompletely crushed corn kernels into the feeding rack through the servo motor C to drive the spiral feeding rod to guide the incompletely crushed corn kernels back to the top of the electric crushing roller, thereby improving the effect of efficient circulating crushing of corn kernels.

[0013] 3. The multi-stage crushing mechanism of this feed grinder is equipped with a collision crushing mechanism, which enables the staff to use the coordination between the filter frame B, servo motor D, crushing rod, crushing hammer, crushing block, cleaning brush plate and wire brush, and use the servo motor D to drive several crushing blocks on the side of the outer circle of the crushing rod and the crushing hammer to continuously impact the corn kernels, thereby crushing the corn kernels and improving the effect of efficient crushing of the corn kernels. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the feed grinder of the utility model;

[0015] Figure 2 This is a schematic diagram of the front cross-sectional structure of the feed grinder in the utility model;

[0016] Figure 3 For the utility model Figure 2 The enlarged schematic diagram of the structure at A in the middle;

[0017] Figure 4 For the utility model Figure 3 The enlarged schematic diagram of the structure at B in the middle;

[0018] Figure 5 For the utility model Figure 2 A in the middle is a schematic diagram of the enlarged structure of Example 2.

[0019] Markings in the figure: 1. Feed crusher; 101. Feed chute; 102. Servo motor A; 103. Feed tray; 104. Feed chute; 105. Discharge chute; 106. Crushing block A; 107. Guide plate; 2. Receiving box; 3. Electric crushing roller; 301. Crushing block B; 4. Filter rack A; 401. Telescopic rod; 5. Servo motor B; 501. Eccentric wheel; 6. Feed rack; 601. Guide chute A; 602. Guide chute B; 603. Servo motor C; 604. Spiral feeding rod; 7. Filter rack B; 8. Servo motor D; 801. Crushing rod; 802. Crushing hammer; 803. Crushing block; 804. Cleaning brush plate; 805. Wire brush. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the utility model:

[0022] Example 1: Reference Figure 1-5A multi-stage crushing mechanism of a feed grinder comprises a feed grinder 1, a feeding trough 101, a discharging trough 105, a guide plate 107, a receiving box 2, an electric crushing roller 3 and a crushing block B301. The feed grinder 1 is embedded with the feeding trough 101 above, the discharging trough 105 is embedded with the feeding trough 105 below, the receiving box 2 is arranged below the feed grinder 1 near the discharging trough 105, the electric crushing rollers 3 are rotatably arranged on both sides of the feed grinder 1 through bearings, the crushing blocks B301 are fixedly installed on the outer ring of the electric crushing roller 3, there are several crushing blocks B301, which are arranged in parallel and equidistantly in a cone shape, and are arranged around at an equal distance, the guide plates 107 are fixedly installed on both sides of the feed grinder 1 near the bottom of the electric crushing roller 3, the feed grinder 1 is respectively provided with a circulating crushing mechanism that can repeatedly crush feed, and a collision crushing mechanism that can efficiently crush feed, and the feed trough 101 is provided with a uniform feeding mechanism that can uniformly introduce feed.

[0023] Reference Figure 2 , further, the uniform feeding mechanism is composed of a servo motor A102, a feeding tray 103, and a feeding trough 104;

[0024] A servo motor A102 is fixedly installed at the front of the feed trough 101. The servo motor A102 is connected to a feed tray 103 through an output shaft. A feeding trough 104 is embedded in the outer ring of the feed tray 103. There are several feeding troughs 104, which are arranged equidistantly around in a trapezoidal shape. When the staff needs to crush a large amount of corn kernel feed, after pouring a large amount of corn kernels into the feed trough 101, the servo motor A102 is turned on to drive the feed tray 103 to rotate at a low speed, so that several feeding troughs 104 on the outer ring of the feed tray 103 rotate upward in turn, so that some corn kernels fall into the feeding trough 104, and after rotating downward in turn, the corn kernels in several feeding troughs 104 fall out to the crushing roller 3 in a quantitative manner. The staff turns on the servo motor matching the crushing roller 3 to drive the crushing roller 3 to rotate to evenly crush the corn kernels, which is convenient for uniformly conveying the corn kernels and can effectively avoid the crushed corn kernels from piling up to cause blockage.

[0025] Reference Figure 1-3 , further, the circulating crushing mechanism is composed of a crushing block A106, a filter frame A4, a telescopic rod 401, a servo motor B5, an eccentric wheel 501, a feeding frame 6, a guide trough A601, a guide trough B602, a servo motor C603 and a spiral feeding rod 604;

[0026] Crushing blocks A106 are fixedly installed on both sides of the inner wall of the feed grinder 1 near the electric crushing roller 3. There are several crushing blocks A106, which are arranged in parallel and equidistantly in a cone shape and are arranged around at an equal distance. Several crushing blocks A106 and several crushing blocks B301 are interlaced. A filter rack A4 is arranged between the lower part of the guide plate 107 inside the feed grinder 1, and the filter rack A4 is arranged in an arc shape. Telescopic rods 401 are fixedly installed between the upper sides of the filter rack A4 and the upper part of the inner wall of the feed grinder 1, and springs are matched on the outer side of the telescopic rod 401. Servo motors B5 are fixedly installed on both sides of the inner wall of the feed grinder 1 near the filter rack A4. The servo motor B5 is connected to the eccentric wheel 501 through the output shaft, and a feeding rack 6 is arranged on both sides of the feed grinder 1. A guide groove A601 is embedded between the sides of the feeding rack 6 and the sides of the feed grinder 1, close to the filter frame A4, and the guide groove A601 is arranged in an inclined trapezoidal shape. A servo motor C603 is fixedly installed on the upper part of the feeding rack 6. The servo motor C603 is connected to the spiral feeding rod 604 through the output shaft. A guide groove B602 is embedded between the sides of the feeding rack 6 and the sides of the feed grinder 1, close to the upper part of the electric crushing roller 3. When the corn kernels fall evenly above the electric crushing roller 3, the staff turns on the servo motors matching the two electric crushing rollers 3. The motor drives the electric crushing roller 3 to rotate, so that the crushing blocks B301 on the outer ring of the electric crushing roller 3 and the crushing blocks A106 on the inner wall of the feed crusher 1 rotate alternately, and a large number of corn kernels that fall evenly between the crushing blocks B301 and A106 are squeezed and crushed, and then fall from one end of the guide plate 107 to the surface of the filter mesh frame A4. At the same time, the staff turns on the servo motor B5 to drive the eccentric wheel 501 to rotate rapidly, so that the eccentric wheel 501 continuously hits the filter mesh frame A4 through the telescopic rod 401 and the outer spring to repeatedly extend and retract, driving the arc-shaped filter mesh frame A4 to shake at a high frequency, so that the small particles in the large number of corn kernels crushed on the surface of the filter mesh frame A4 will be The corn kernels that are not completely crushed will pass through the filter rack A4 and fall to the lower part of the feed grinder 1. The corn kernels that are not completely crushed will be guided into the guide trough A601 along the two sides of the shaking filter rack A4 and fall into the feeding rack 6. At the same time, the staff turns on the servo motor C603 to drive the spiral feeding rod 604 to rotate, and the corn kernels that are not completely crushed will be transported to the guide trough B602 above. After falling back to the top of the electric crushing roller 3, they will be crushed again in the same way, so that the corn kernels that are not completely crushed will be continuously crushed in a cycle, and after the crushing is completed, they will pass through the filter rack A4 and fall to the lower part of the feed grinder 1, thereby improving the effect of efficient circulation crushing of the corn kernels.

[0027] Reference Figure 2-4 , further, the collision crushing mechanism is composed of a filter frame B7, a servo motor D8, a crushing rod 801, a crushing hammer 802, a crushing block 803, a cleaning brush plate 804 and a wire brush 805;

[0028] A filter rack B7 is fixedly installed at the lower part of the feed grinder 1, and the filter rack B7 is arranged in an arc shape. A servo motor D8 is fixedly installed at the rear of the inner wall of the feed grinder 1. The servo motor D8 is connected to a breaking rod 801 through an output shaft. A breaking hammer 802 is fixedly installed on the outer ring of the breaking rod 801. There are several breaking hammers 802, which are equidistantly arranged around. A breaking block 803 is fixedly installed on the side of the breaking hammer 802. There are several breaking blocks 803, which are equidistantly arranged in parallel in a cone shape. A cleaning brush plate 804 is fixedly installed on the other side of the breaking hammer 802. A wire brush 805 is fixedly installed below the cleaning brush plate 804. There are several wire brushes 805, which are arranged in parallel, and the wire brush 805 extends to the inside of the filter rack B7. When a large amount of corn kernels that have been initially crushed fall into the filter rack B7, At the same time, the staff turns on the servo motor D8 to drive several crushing hammers 802 on the outer circle of the crushing rod 801 to rotate rapidly, driving several crushing blocks 803 on the side of the crushing hammer 802 to continuously contact the corn kernels and impact and crush the corn kernels, and continuously break up the corn kernels accumulated at the bottom through the continuously rotating crushing hammer 802. After repeated collisions and crushing, a large amount of corn kernels pass through the filter frame B7 and fall out from the inside of the discharge chute 105 to the receiving box 2 for collection. At the same time, several rotating crushing hammers 802 drive the wire brush 805 under the cleaning brush plate 804 to continuously brush the inner surface of the filter frame B7 to avoid clogging of the filter frame B7. After the multi-stage crushing of the corn kernel feed is completed, the staff carries the receiving box 2 to other processing sites to process the crushed corn kernel feed, thereby improving the effect of efficient crushing of the corn kernels.

[0029] Reference Figure 2-3 Furthermore, the electric crushing roller 3 is electrically connected to the battery through the matching servo motor and control panel, and the servo motor A102, servo motor B5, servo motor C603 and servo motor D8 are all electrically connected to the battery through the control panel.

[0030] Embodiment 2:

[0031] like Figure 5As shown, in addition to the embodiment of the utility model in which a filter mesh frame A4 is arranged between the inside of the feed grinder 1 and the lower part of the guide plate 107, and the filter mesh frame A4 is arranged in an arc shape, there is another implementation mode, in which a filter mesh frame A4 is arranged between the inside of the feed grinder 1 and the lower part of the guide plate 107, and the filter mesh frame A4 is arranged in a "V" shape. When the staff turns on the servo motor B5 to drive the eccentric wheel 501 to rotate rapidly, the eccentric wheel 501 continuously hits the filter mesh frame A4, and the telescopic rod 401 and the outer spring are repeatedly extended and retracted, driving the "V"-shaped filter mesh frame A4 to shake at a high frequency, so that the small particles of a large amount of corn kernels crushed on the surface of the filter mesh frame A4 will pass through the filter mesh frame A4 and fall to the lower part of the feed grinder 1, and the part of the corn kernels that are not completely crushed will fall quickly along the two sides of the shaking filter mesh frame A4, so that the surface of the "V"-shaped filter mesh frame A4 with a larger inclination angle can better avoid clogging. Compared with the first implementation mode, the anti-clogging effect is better.

[0032] Working principle: First, the staff needs to crush a large amount of corn kernels. After pouring a large amount of corn kernels into the feed trough 101, turn on the servo motor A102 to drive the unloading plate 103 to rotate at a low speed, so that the outer ring of the unloading plate 103 Several feeding troughs 104 turn upward in turn, so that some corn kernels fall into the feeding trough 104, and after turning downward in turn, the corn kernels in the feeding troughs 104 fall out to the crushing roller 3 in a quantitative manner. Then, the staff turns on the servo motors matching the two electric crushing rollers 3 to drive the electric crushing rollers 3 to rotate, so that the outer ring of the electric crushing roller 3 Several crushed blocks B301 and the inner wall of the feed grinder 1 The large amount of corn kernels evenly falling between the crushing block B301 and the crushing block A106 are squeezed and crushed, and then fall from one end of the guide plate 107 to the surface of the filter frame A4. At the same time, the staff turns on the servo motor B5 to drive the eccentric wheel 501 to rotate quickly, so that the eccentric wheel 501 continuously hits the filter frame A4 through the telescopic rod 401 and the outer spring to repeatedly extend and retract, driving the arc-shaped filter frame A4 to shake at a high frequency, so that the small particles of the large amount of corn kernels crushed on the surface of the filter frame A4 will pass through the filter frame A4 and fall to the bottom of the feed grinder 1, while the part of the corn kernels that are not completely crushed will While guiding the two sides of the shaking filter frame A4 into the guide trough A601 and dropping into the feeding frame 6, the staff turns on the servo motor C603 to drive the spiral feeding rod 604 to rotate, and transports the un-crushed corn kernels to the upper guide trough B602, and after falling back onto the electric crushing roller 3, it is crushed again in the same way, so that the un-crushed corn kernels are continuously crushed in a cycle. Finally, a large number of corn kernels that have been initially crushed fall into the filter frame B7, and the staff turns on the servo motor D8 to drive the outer ring of the crushing rod 801 to rotate rapidly, driving the crushing hammer 8 02 Several crushing blocks 803 on the side continuously contact the corn kernels and impact and crush them, and the corn kernels accumulated at the bottom are continuously broken up by the continuously rotating crushing hammer 802. A large number of corn kernels that have been repeatedly collided and crushed pass through the filter frame B7 and fall out from the inside of the discharge chute 105 to the receiving box 2 for collection. At the same time, several rotating crushing hammers 802 drive the wire brush 805 under the cleaning plate 804 to continuously brush the inner surface of the filter frame B7 to avoid clogging of the filter frame B7. After the corn kernel feed is crushed, the staff carries the receiving box 2 to other processing sites to process the crushed corn kernel feed.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-stage crushing mechanism of a feed crusher, comprising a feed crusher (1), a feed trough (101), a discharge trough (105), a guide plate (107), a receiving box (2), an electric crushing roller (3) and a crushing block B (301), wherein the feed crusher (1) is embedded with a feed trough (101) on the top, the feed crusher (1) is embedded with a discharge trough (105) on the bottom, the feed crusher (1) is provided with a receiving box (2) below the discharge trough (105), the feed crusher (1) is provided with electric crushing rollers (3) rotatably arranged on both sides of the feed crusher (1) through bearings, the outer ring of the electric crushing roller (3) is fixedly mounted with a crushing block B (301), there are a plurality of crushing blocks B (301), which are arranged in parallel and equidistantly in a cone shape, and are arranged around at an equal distance, the feed crusher (1) is provided with a guide plate (107) fixedly mounted on both sides of the feed crusher (1) near the bottom of the electric crushing roller (3), and the characteristics are: The feed grinder (1) is provided with a circulating crushing mechanism capable of repeatedly crushing feed and a collision crushing mechanism capable of efficiently crushing feed, and the feed trough (101) is provided with a uniform feeding mechanism capable of uniformly introducing feed.

2. The multi-stage crushing mechanism of a feed crusher according to claim 1, characterized in that: The uniform feeding mechanism is composed of a servo motor A (102), a feeding tray (103), and a feeding trough (104); A servo motor A (102) is fixedly installed at the front of the feed trough (101), and the servo motor A (102) is connected to a feed tray (103) via an output shaft. A feed trough (104) is embedded in the outer ring of the feed tray (103).

3. The multi-stage crushing mechanism of a feed crusher according to claim 1, characterized in that: The circulating crushing mechanism is composed of a crushing block A (106), a filter frame A (4), a telescopic rod (401), a servo motor B (5), an eccentric wheel (501), a feeding frame (6), a guide trough A (601), a guide trough B (602), a servo motor C (603) and a spiral feeding rod (604); Crushing blocks A (106) are fixedly installed on both sides of the inner wall of the feed grinder (1) near the electric crushing roller (3); a filter rack A (4) is arranged between the inner wall of the feed grinder (1) and the lower part of the guide plate (107); telescopic rods (401) are fixedly installed between the upper sides of the filter rack A (4) and the upper side of the inner wall of the feed grinder (1); and springs are matchedly arranged on the outer side of the telescopic rods (401); servo motors B (5) are fixedly installed on both sides of the inner wall of the feed grinder (1) near the filter rack A (4); and the servo motors B (5) are arranged to output The shaft is connected to an eccentric wheel (501), and feeding racks (6) are arranged on both sides of the feed grinder (1). A material guide groove A (601) is embedded between the side of the feeding rack (6) and the side of the feed grinder (1) and close to both sides of the filter frame A (4). A servo motor C (603) is fixedly installed on the upper part of the feeding rack (6). The servo motor C (603) is connected to a spiral feeding rod (604) through an output shaft. A material guide groove B (602) is embedded between the side of the feeding rack (6) and the side of the feed grinder (1) and close to the upper part of the electric grinding roller (3).

4. The multi-stage crushing mechanism of a feed crusher according to claim 1, characterized in that: The collision crushing mechanism is composed of a filter frame B (7), a servo motor D (8), a crushing rod (801), a crushing hammer (802), a crushing block (803), a cleaning brush plate (804) and steel wire bristles (805); A filter rack B (7) is fixedly installed at the lower part of the feed grinder (1), a servo motor D (8) is fixedly installed at the rear of the inner wall of the feed grinder (1), the servo motor D (8) is connected to a crushing rod (801) via an output shaft, a crushing hammer (802) is fixedly installed on the outer ring of the crushing rod (801), a crushing block (803) is fixedly installed on the side of the crushing hammer (802), a cleaning plate (804) is fixedly installed on the other side of the crushing hammer (802), and a steel wire brush (805) is fixedly installed below the cleaning plate (804), and the steel wire brush (805) extends to the inner side of the filter rack B (7).

5. The multi-stage crushing mechanism of a feed crusher according to claim 2, characterized in that: There are a plurality of feeding troughs (104) which are arranged in a trapezoidal shape and are equidistantly arranged around the feeder.

6. The multi-stage crushing mechanism of a feed crusher according to claim 3, characterized in that: There are a plurality of crushing blocks A (106), which are arranged in parallel and equidistantly in a cone shape, and are arranged in a surrounding manner at an equal distance. The crushing blocks A (106) and the crushing blocks B (301) are interlaced with each other. The filter frame A (4) is arranged in an arc shape, and the material guide trough A (601) is arranged in an inclined trapezoidal shape.

7. The multi-stage crushing mechanism of a feed crusher according to claim 4, characterized in that: The filter frame B (7) is arranged in an arc shape, there are a plurality of crushing hammers (802) which are arranged equidistantly around, there are a plurality of crushing blocks (803) which are arranged equidistantly in parallel in a cone shape, and there are a plurality of steel wire bristles (805) which are arranged in parallel.

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