Feed crushing device for animal husbandry

Abstract

The utility model discloses a feed crushing device for animal husbandry, which relates to the technical field of animal husbandry and comprises a shell, a power transmission component, a moving component and a control component. When the device is started, raw materials are put in from the feeding hopper, at the moment, the power transmission part transmits power to the first crushing roller and the second crushing roller, the first crushing roller and the second crushing roller start to rotate for crushing, the crushed feed falls into the collector through the filter screen, and when stone is mixed in the raw materials, the raw materials are crushed by the crusher. At the moment, the first crushing roller and the second crushing roller stop rotating, and the position of the second crushing roller is changed through the moving part, so that the stones can penetrate through a gap between the first crushing roller and the second crushing roller to fall on the filter screen, and meanwhile, the feed raw materials falling together with the stones can be blocked by the filter screen; and then the stones and the raw materials on the filter screen are shaken out from the discharge port through the control part. Therefore, the working efficiency of the device is not affected even if stones enter the crushing device.

Description

Technical Field

[0001] The utility model relates to the technical field of livestock breeding, in particular to a feed crushing device for livestock. Background Art

[0002] In the process of livestock breeding, it is often necessary to crush forage to facilitate feeding livestock. The existing livestock feed crushing device is not convenient for maintaining the blades. The disassembly process of the whole blade is time-consuming and laborious, greatly increasing the work burden of the staff. Moreover, when crushing relatively dry forage, it cannot purify the floating dust generated during crushing.

[0003] The Chinese patent with the publication number of CN211482052U is proposed in the prior art to solve the above-mentioned existing technical problems. The technical solution disclosed in the patent document is as follows: A feed crushing device for livestock, including a housing assembly, a crushing assembly and a purification assembly. The crushing assembly is installed on the right side of the housing assembly, the left side of the crushing assembly penetrates through the housing assembly and extends into its interior, and the purification assembly is installed on the top of the housing assembly; the housing assembly includes a housing, a feeding port, a discharging port and a maintenance cover. The feeding port is opened on the top of the housing, and the discharging port is opened at the bottom on the left side of the housing. Through the mutual cooperation of the housing assembly, the crushing assembly and the purification assembly, the utility model realizes a feed crushing device for livestock, making the crushing blades in the feed crushing device easy to disassemble. The staff can complete the disassembly of the crushing blades with very little time and effort, which is convenient for maintaining the crushing blades, reducing the work burden of the staff. Moreover, it can also purify the floating dust generated during the crushing of dry forage, with high practicability and suitable for popularization. However, generally, there will be some stones in the forage. The entry of stones into the crushing device will cause damage to the crushing blades. Although the device can quickly replace the blades, it will reduce the working efficiency of the device. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a feed crushing device for livestock to solve the problems raised in the above background art.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0006] A feed crushing device for livestock farming, comprising a housing. Inside the housing, a first crushing roller and a second crushing roller are arranged. The first crushing roller is rotationally connected to the housing. A filter screen is arranged inside the housing. There is a discharge port on the housing. One end of the filter screen close to the discharge port is hinged to the housing. A collector is arranged below the filter screen. The collector is slidably connected to the housing. A handle is fixedly connected to one side of the collector. A feed hopper is arranged above the housing. One end of the housing far from the discharge port is fixedly connected with a motor. The output end of the motor is fixedly connected with a first pulley. One end of the first crushing roller is connected with a power transmission component for providing power. One end of the second crushing roller close to the power transmission component is connected with a moving component for moving the second crushing roller. A control component for controlling the movement of the filter screen is connected to the housing.

[0007] When the device is started, the feed raw materials are put in from the feed hopper. At this time, the motor will transmit the power to the first crushing roller and the second crushing roller through the power transmission component. The first crushing roller and the second crushing roller start to rotate for crushing. The crushed feed will fall into the collector through the filter screen below. When there are stones mixed in the feed raw materials, at this time, the first crushing roller and the second crushing roller will stop rotating and the position of the second crushing roller will be changed through the moving component, so that the stones can pass through the gap between the first crushing roller and the second crushing roller and fall on the filter screen. At the same time, the feed raw materials that fall together with the stones will also be blocked by the filter screen, and then the stones and the feed raw materials on the filter screen are shaken out from the discharge port through the control component. Thus, even if stones enter the crushing device, it will not affect the working efficiency of the device.

[0008] A further improvement of the technical solution of the present utility model lies in that: the power transmission component includes a support plate. The support plate is fixedly connected to the housing. The support plates are symmetrically arranged. A rotating shaft is rotationally connected to the support plate. One end of the rotating shaft close to the motor is fixedly connected with a first pulley. The first pulleys are connected by a belt drive. A first bevel gear and a second bevel gear are respectively arranged on the rotating shaft. The first bevel gear is fixedly connected to the rotating shaft. One end of the first crushing roller and the second crushing roller close to the rotating shaft is fixedly connected with a first bevel gear. The first bevel gear on the rotating shaft and the second bevel gear respectively mesh with the first bevel gears fixedly connected to the first crushing roller and the second crushing roller.

[0009] Adopting the above technical solution, when the motor rotates, it will drive the first pulley fixedly connected to the rotating shaft through the belt. The rotation of the first pulley will drive the first bevel gear and the second bevel gear to rotate through the rotating shaft. Thus, the first crushing roller and the second crushing roller are driven to rotate through the meshing relationship between the first bevel gear and the second bevel gear and the first bevel gears fixedly connected to the first crushing roller and the second crushing roller respectively, so as to achieve the purpose of crushing the feed raw materials.

[0010] A further improvement of the technical solution of the present utility model lies in that: the moving part includes a connecting plate, the connecting plate is respectively rotatably connected to the rotating shaft and the second crushing roller, the connecting plate is rotatably connected to the second bevel gear, a sliding groove is provided on the rotating shaft, a slider is fixedly connected to the second bevel gear, the slider is slidably connected to the sliding groove, a telescopic rod is fixedly connected to the support plate, the end of the telescopic rod away from the support plate is fixedly connected to the connecting plate, a spring is arranged outside the telescopic rod, one end of the spring is fixedly connected to the housing, the other end of the spring is fixedly connected to the connecting plate, moving grooves are symmetrically provided on the housing, and the second crushing roller is slidably connected to the moving grooves.

[0011] With the above technical solution, in this solution, when the first crushing roller and the second crushing roller encounter stones, at this time, the first crushing roller and the second crushing roller will be stuck, and at the same time, the rotation of the rotating shaft will provide the driving force for the first crushing roller and the second crushing roller to rotate, so that the connecting plate drives the second bevel gear and the second crushing roller to move, and the spring is in a compressed state. When the gap between the first moving roller and the second moving roller can allow the stones to pass through, at this time, the spring works to make the second crushing roller return to its original position, so as to realize that the presence of stones will not affect the feed crushing, thereby protecting the first crushing roller and the second crushing roller, prolonging the service life of the crushing roller, and improving the working efficiency of the device.

[0012] A further improvement of the technical solution of the present utility model lies in that: the control part includes a shaft body, the shaft body is rotatably connected to the housing, a second belt pulley is fixedly connected to the end of the shaft body close to the motor, a cam is fixedly connected to the end of the shaft body away from the second belt pulley, the cam contacts the filter screen, and the second belt pulley and the first belt pulley are connected by a belt for transmission.

[0013] With the above technical solution, in this solution, when the motor drives the first crushing roller and the second crushing roller to move through the cooperation of the belt and the first belt pulley, at this time, the motor will also drive the cam to rotate through the cooperation of the belt and the second belt pulley, and the rotation of the cam will drive the filter screen to move up and down, so that the stones and feed raw materials on the filter screen are shaken out from the discharge port.

[0014] A further improvement of the technical solution of the present utility model lies in that: a telescopic plate is rotatably connected to the feed hopper, and the other end of the telescopic plate is rotatably connected to the connecting plate.

[0015] With the above technical solution, in this solution, by rotatably connecting a telescopic plate to the feed hopper, it can move along with the second crushing roller when the second crushing roller moves, so as to avoid more crushing raw materials leaking from the gap due to the movement of the crushing roller.

[0016] A further improvement of the technical solution of the present utility model lies in that: a compression rod is fixedly connected to the housing, a support rod is fixedly connected to the end of the compression rod close to the second crushing roller, and the support rod is fixedly connected to the second crushing roller.

[0017] With the above technical solution, in this solution, a compression rod and a support rod are fixedly connected to the housing and fixedly connected to the second crushing roller, which can limit the position of the second crushing roller during movement and prevent damage to the second moving roller caused by position change due to movement.

[0018] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is as follows:

[0019] 1. The present utility model provides a feed crushing device for livestock. When the device is started, feed raw materials are put in from the feed hopper. At this time, the motor will transmit power to the first crushing roller and the second crushing roller through the power transmission component. The first crushing roller and the second crushing roller start to rotate for crushing. The crushed feed will fall into the collector through the filter screen below. When there are stones mixed in the feed raw materials, at this time, the first crushing roller and the second crushing roller will stop rotating and change the position of the second crushing roller through the moving component, so that the stones can pass through the gap between the first crushing roller and the second crushing roller and fall on the filter screen. At the same time, the feed raw materials that fall with the stones will also be blocked by the filter screen, and then the stones and feed raw materials on the filter screen are shaken out from the discharge port through the control component. Thus, even if stones enter the crushing device, it will not affect the working efficiency of the device.

[0020] 2. The present utility model provides a feed crushing device for livestock. When the motor rotates, it will drive the first belt pulley fixedly connected to the rotating shaft to rotate through the belt. The rotation of the first belt pulley will drive the first bevel gear and the second bevel gear to rotate through the rotating shaft. Thus, the first crushing roller and the second crushing roller are driven to rotate through the meshing relationship between the first bevel gear and the second bevel gear respectively fixedly connected to the first crushing roller and the second crushing roller, so as to achieve the purpose of crushing feed raw materials.

[0021] 3. The present utility model provides a feed crushing device for livestock. When the first crushing roller and the second crushing roller encounter stones, at this time, the first crushing roller and the second crushing roller will be stuck. At the same time, the rotation of the rotating shaft will provide the power for the first crushing roller and the second crushing roller to rotate, so that the connecting plate drives the second bevel gear and the second crushing roller to move, and the spring is in a compressed state. When the gap between the first moving roller and the second moving roller can allow the stones to pass through, at this time, the spring works to make the second crushing roller return to its original position, so as to achieve that the presence of stones will not affect feed crushing, thereby protecting the first crushing roller and the second crushing roller, extending the service life of the crushing roller, and improving the working efficiency of the device.

[0022] 4. The present utility model provides a feed crushing device for livestock. When the motor drives the first crushing roller and the second crushing roller to move through the cooperation of the belt and the first belt pulley, at this time, the motor will also make the cam rotate through the cooperation of the belt and the second belt pulley. The rotation of the cam will drive the filter screen to move up and down, so that the stones and feed raw materials on the filter screen are shaken out from the discharge port. Brief Description of the Drawings

[0023] The present utility model will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 is a schematic structural view of the present utility model;

[0025] Figure 2 is a schematic cross-sectional structural view of the present utility model;

[0026] Figure 3 is a schematic left-view first cross-sectional structural view of the present utility model;

[0027] Figure 4 is a schematic cross-sectional structural view of the present utility model;

[0028] Figure 5 is a schematic left-view second cross-sectional structural view of the present utility model;

[0029] Figure 6 is a schematic partial structural view of the moving part of the present utility model;

[0030] In the figure: 1, housing; 2, first crushing roller; 3, second crushing roller; 4, filter screen; 5, discharge port; 6, collector; 7, handle; 8, feed hopper; 9, motor; 11, first pulley; 12, support plate; 13, rotating shaft; 14, belt; 15, first bevel gear; 16, second bevel gear; 17, connecting plate; 18, chute; 19, slider; 20, telescopic rod; 21, spring; 22, moving groove; 23, shaft body; 24, second pulley; 25, cam; 26, telescopic plate; 27, compression rod; 28, support rod. Detailed Description of the Preferred Embodiment

[0031] The present utility model will be further described in detail below in conjunction with the embodiments: Embodiment 1

[0032] As Figure 1As shown, the utility model provides a feed crushing device for animal husbandry, including a shell 1, a first crushing roller 2 and a second crushing roller 3 are arranged in the shell 1, the first crushing roller 2 is rotatably connected to the shell 1, a filter screen 4 is arranged inside the shell 1, a discharge port 5 is provided on the shell 1, one end of the filter screen 4 close to the discharge port 5 is hinged to the shell 1, a collector 6 is arranged below the filter screen 4, the collector 6 is slidably connected to the shell 1, a handle 7 is fixedly connected to one side of the collector 6, a feeding hopper 8 is arranged above the shell 1, a motor 9 is fixedly connected to one end of the shell 1 away from the discharge port 5, a first pulley 11 is fixedly connected to the output end of the motor 9, one end of the first crushing roller 2 is connected to a power transmission component for providing power, one end of the second crushing roller 3 close to the power transmission component is connected to a moving component for moving the second crushing roller 3, and a control component for controlling the movement of the filter screen 4 is connected to the shell 1.

[0033] In this embodiment, when the device is started, feed raw materials are put into the feed hopper 8, and the motor 9 transmits power to the first crushing roller 2 and the second crushing roller 3 through the power transmission component, and the first crushing roller 2 and the second crushing roller 3 start to rotate for crushing, and the crushed feed will fall into the collector 6 through the filter screen 4 below. When stones are mixed in the feed raw materials, the first crushing roller 2 and the second crushing roller 3 will stop rotating and change the position of the second crushing roller 3 through the moving component, so that the stones can pass through the gap between the first crushing roller 2 and the second crushing roller 3 and fall on the filter screen 4. At the same time, the feed raw materials falling with the stones will also be blocked by the filter screen 4, and then the stones on the filter screen 4 and the feed raw materials are shaken out from the discharge port 5 through the control component. Thereby, even if stones enter the crushing device, the working efficiency of the device will not be affected.

[0034] like Figure 2 , Figure 6 As shown, in the present embodiment, preferably, the power transmission component comprises a support plate 12, the support plate 12 is fixedly connected to the housing 1, the support plate 12 is symmetrically arranged, a rotating shaft 13 is rotatably connected to the support plate 12, a first pulley 11 is fixedly connected to one end of the rotating shaft 13 close to the motor 9, the first pulleys 11 are connected by a belt 14 for transmission, a first bevel tooth 15 and a second bevel tooth 16 are respectively arranged on the rotating shaft 13, the first bevel tooth 15 is fixedly connected to the rotating shaft 13, the first crushing roller 2 and the second crushing roller 3 are fixedly connected to one end of the rotating shaft 13, the first bevel tooth 15 and the second bevel tooth 16 on the rotating shaft 13 are respectively meshed with the first bevel tooth 15 fixedly connected to the first crushing roller 2 and the second crushing roller 3.

[0035] The rotation of the motor 9 will drive the first pulley 11 fixedly connected to the rotating shaft 13 to rotate through the belt 14. The rotation of the first pulley 11 will drive the first bevel teeth 15 and the second bevel teeth 16 to rotate through the rotating shaft 13, so that the first crushing roller 2 and the second crushing roller 3 are driven to rotate through the mutual meshing relationship between the first bevel teeth 15 and the second bevel teeth 16 and the first bevel teeth 15 fixedly connected to the first crushing roller 2 and the second crushing roller 3, thereby achieving the purpose of crushing the feed raw materials.

[0036] like Figure 5 As shown, preferably, the moving component includes a connecting plate 17, which is rotatably connected to the rotating shaft 13 and the second crushing roller 3 respectively, and the connecting plate 17 is rotatably connected to the second bevel gear 16. A slide groove 18 is provided on the rotating shaft 13, and a slider 19 is fixedly connected to the second bevel gear 16, and the slider 19 is slidably connected to the slide groove 18. A telescopic rod 20 is fixedly connected to the support plate 12, and one end of the telescopic rod 20 away from the support plate 12 is fixedly connected to the connecting plate 17. A spring 21 is arranged on the outer side of the telescopic rod 20, one end of the spring 21 is fixedly connected to the shell 1, and the other end of the spring 21 is fixedly connected to the connecting plate 17. A moving groove 22 is symmetrically provided on the shell 1, and the second crushing roller 3 is slidably connected to the moving groove 22.

[0037] When the first crushing roller 2 and the second crushing roller 3 encounter stones, the first crushing roller 2 and the second crushing roller 3 will be stuck. At the same time, the rotation of the rotating shaft 13 will provide the first crushing roller 2 and the second crushing roller 3 with rotational power, so that the connecting plate 17 drives the second bevel gear 16 and the second crushing roller 3 to move, and the spring 21 is in a compressed state. When the gap between the first moving roller and the second moving roller is large enough for the stone to pass through, the spring 21 works to restore the second crushing roller 3 to its original position, so that the feed crushing will not be affected by the stones, thereby protecting the first crushing roller 2 and the second crushing roller 3, extending the service life of the crushing roller, and improving the working efficiency of the device.

[0038] like Figure 5 As shown, preferably, the control component includes a shaft 23, which is rotatably connected to the shell 1, and a second pulley 24 is fixedly connected to one end of the shaft 23 close to the motor 9, and a cam 25 is fixedly connected to one end of the shaft 23 away from the second pulley 24, and the cam 25 is in contact with the filter 4, and the second pulley 24 is connected to the first pulley 11 through a belt 14.

[0039] When the motor 9 cooperates with the first pulley 11 through the belt 14 to drive the first crushing roller 2 and the second crushing roller 3 to move, the motor 9 will also cooperate with the second pulley 24 through the belt 14 to rotate the cam 25. The rotation of the cam 25 will drive the filter screen 4 to move up and down, so that the stones and feed raw materials on the filter screen 4 are shaken out from the discharge port 5. Example 2

[0040] As Figure 4 shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, a telescopic plate 26 is rotatably connected to the feed hopper 8, and the other end of the telescopic plate 26 is rotatably connected to the connecting plate 17.

[0041] In this embodiment, by rotatably connecting and arranging the telescopic plate 26 on the feed hopper 8, it can move along with the second crushing roller 3 when the second crushing roller 3 moves, thereby avoiding more crushed raw materials leaking from the gap due to the movement of the crushing roller. Embodiment 3

[0042] As Figure 1 shown, on the basis of Embodiment 2, the present utility model provides a technical solution: Preferably, a compression rod 27 is fixedly connected to the housing 1, and a support rod 28 is fixedly connected to one end of the compression rod 27 close to the second crushing roller 3, and the support rod 28 is fixedly connected to the second crushing roller 3.

[0043] In this embodiment, by fixedly connecting and arranging the compression rod 27 on the housing 1 and fixedly connecting the support rod 28 to the second crushing roller 3, the position of the second crushing roller 3 during movement can be restricted, preventing the second moving roller from being damaged due to a change in position caused by movement.

[0044] Next, the working principle of the livestock feed crushing device will be specifically described.

[0045] As Figure 1-6As shown, when the device is started, the feed raw materials are put in from the feed hopper 8. At this time, the motor 9 will transmit power to the first crushing roller 2 and the second crushing roller 3 through the power transmission component. The first crushing roller 2 and the second crushing roller 3 start to rotate for crushing. The crushed feed will fall into the collector 6 through the filter screen 4 below. When there are stones mixed in the feed raw materials, at this time, the first crushing roller 2 and the second crushing roller 3 will stop rotating and change the position of the second crushing roller 3 through the moving component, so that the stones can pass through the gap between the first crushing roller 2 and the second crushing roller 3 and fall on the filter screen 4. At the same time, the feed raw materials that fall together with the stones will also be blocked by the filter screen 4, and then the stones and feed raw materials on the filter screen 4 are shaken out from the discharge port 5 through the control component. Thus, even if stones enter the crushing device, it will not affect the working efficiency of the device. When the motor 9 rotates, it will drive the first belt pulley 11 fixedly connected to the rotating shaft 13 to rotate through the belt 14. The rotation of the first belt pulley 11 will drive the first bevel gear 15 and the second bevel gear 16 to rotate through the rotating shaft 13. Thus, through the meshing relationship between the first bevel gear 15 and the second bevel gear 16 and the first bevel gear 15 fixedly connected to the first crushing roller 2 and the second crushing roller 3 respectively, the first crushing roller 2 and the second crushing roller 3 are driven to rotate, so as to achieve the purpose of crushing the feed raw materials. When the first crushing roller 2 and the second crushing roller 3 encounter stones, at this time, the first crushing roller 2 and the second crushing roller 3 will be stuck. At the same time, the rotation of the rotating shaft 13 will provide the driving force for the first crushing roller 2 and the second crushing roller 3 to rotate, so that the connecting plate 17 drives the second bevel gear 16 and the second crushing roller 3 to move. The spring 21 is in a compressed state. When the gap between the first moving roller and the second moving roller can allow the stones to pass through, at this time, the spring 21 works to make the second crushing roller 3 return to its original position, so as to achieve that the presence of stones will not affect the feed crushing, thus protecting the first crushing roller 2 and the second crushing roller 3, extending the service life of the crushing roller, and improving the working efficiency of the device. When the motor 9 drives the first crushing roller 2 and the second crushing roller 3 to move through the cooperation of the belt 14 and the first belt pulley 11, at this time, the motor 9 will also make the cam 25 rotate through the cooperation of the belt 14 and the second belt pulley 24. The rotation of the cam 25 will drive the filter screen 4 to move up and down, so that the stones and feed raw materials on the filter screen 4 are shaken out from the discharge port 5. By rotatably connecting and arranging a telescopic plate 26 on the feed hopper 8, it can move with the second crushing roller 3 when the second crushing roller 3 moves, so as to avoid more crushed raw materials leaking from the gap due to the movement of the crushing roller. By fixedly connecting and arranging a compression rod 27 and a support rod 28 on the housing 1 and fixedly connecting them to the second crushing roller 3, the position of the second crushing roller 3 during movement can be restricted, preventing the second moving roller from being damaged due to position change during movement.

[0046] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made thereto, which are obvious to those of ordinary skill in the art. Therefore, any modifications or improvements made without departing from the spirit and concept of the present utility model are within the protection scope of the present utility model.

Claims

1. A livestock feed grinding device, comprising a housing (1); characterized in that: A first crushing roller (2) and a second crushing roller (3) are arranged in the shell (1), the first crushing roller (2) is rotatably connected to the shell (1), a filter screen (4) is arranged inside the shell (1), a discharge port (5) is provided at the beginning of the shell (1), one end of the filter screen (4) close to the discharge port (5) is hinged to the shell (1), a collector (6) is arranged below the filter screen (4), the collector (6) is slidably connected to the shell (1), a handle (7) is fixedly connected to one side of the collector (6), a feed hopper (8) is arranged above the shell (1), a motor (9) is fixedly connected to one end of the shell (1) away from the discharge port (5), a first pulley (11) is fixedly connected to the output end of the motor (9), one end of the first crushing roller (2) is connected to a power transmission component for providing power, the end of the second crushing roller (3) close to the power transmission component is connected to a moving component for moving the second crushing roller (3), and a control component for controlling the movement of the filter screen (4) is connected to the shell (1).

2. The livestock feed crushing device according to claim 1, characterized in that: The power transmission component comprises a support plate (12), the support plate (12) being fixedly connected to the housing (1), the support plates (12) being symmetrically arranged, a rotating shaft (13) being rotatably connected to the support plate (12), a first pulley (11) being fixedly connected to one end of the rotating shaft (13) close to the motor (9), the first pulleys (11) being connected to each other by a belt (14), a first bevel tooth (15) and a second bevel tooth (16) being respectively arranged on the rotating shaft (13), the first bevel tooth (15) being fixedly connected to the rotating shaft (13), the first crushing roller (2) and the second crushing roller (3) being fixedly connected to one end of the rotating shaft (13), the first bevel tooth (15) and the second bevel tooth (16) on the rotating shaft (13) respectively meshing with the first bevel tooth (15) fixedly connected to the first crushing roller (2) and the second crushing roller (3).

3. The livestock feed crushing device according to claim 2, characterized in that: The movable component comprises a connecting plate (17), wherein the connecting plate (17) is rotatably connected to the rotating shaft (13) and the second crushing roller (3) respectively, the connecting plate (17) is rotatably connected to the second bevel gear (16), the rotating shaft (13) is provided with a slide groove (18), the second bevel gear (16) is fixedly connected with a slider (19), the slider (19) is slidably connected to the slide groove (18), the support plate (12) is fixedly connected with a telescopic rod (20), one end of the telescopic rod (20) away from the support plate (12) is fixedly connected to the connecting plate (17), a spring (21) is arranged on the outer side of the telescopic rod (20), one end of the spring (21) is fixedly connected to the housing (1), and the other end of the spring (21) is fixedly connected to the connecting plate (17), the housing (1) is symmetrically provided with moving grooves (22), and the second crushing roller (3) is slidably connected to the moving grooves (22).

4. The livestock feed crushing device according to claim 3, characterized in that: The control component comprises a shaft (23), the shaft (23) being rotatably connected to the housing (1), the end of the shaft (23) close to the motor (9) being fixedly connected to a second pulley (24), the end of the shaft (23) away from the second pulley (24) being fixedly connected to a cam (25), the cam (25) being in contact with the filter screen (4), and the second pulley (24) being connected to the first pulley (11) via a belt (14).

5. The livestock feed crushing device according to claim 4, characterized in that: A telescopic plate (26) is rotatably connected to the feed hopper (8), and the other end of the telescopic plate (26) is rotatably connected to the connecting plate (17).

6. The livestock feed crushing device according to claim 5, characterized in that: A compression rod (27) is fixedly connected to the shell (1), and one end of the compression rod (27) close to the second pulverizing roller (3) is fixedly connected to a support rod (28), and the support rod (28) is fixedly connected to the second pulverizing roller (3).

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