A raw material crushing device for ceramic production

Abstract

The present invention relates to the technical field of ceramic production, and in particular to a raw material crushing device for ceramic production, comprising a base, a crushing knife and a telescopic rod, wherein the crushing knife is arranged on the base, and the crushing knife is formed by an elastic plate that is bent in a U-shape in a forward and reverse alternating manner, and the opening direction of each U-shape is perpendicular to the extension direction of the rotating shaft of the base, and the crushing knife extends in the radial direction of the rotating axis of the base, and the telescopic rod is fixedly mounted on the base, and one end of the telescopic rod passes through the crushing knife along the extension direction of the crushing knife, and the telescopic rod is slidably connected to the crushing knife. The setting of the shape of the crushing knife makes the crushing knife extend when subjected to centrifugal force, the opening of the U-shape becomes larger, and soil enters between the U-shaped openings of the crushing knife, and the centrifugal force generated by the crushing knife rotating around the rotating shaft decreases, and the crushing knife begins to shrink, and the opening of the U-shape decreases, and the soil in the U-shaped opening is squeezed and crushed, thereby improving the crushing effect of the crushing knife.

Description

Technical Field

[0001] The invention relates to the technical field of ceramic production, in particular to a raw material crushing device for ceramic production. Background Art

[0002] The raw materials used in ceramic production are mostly soil. In order to ensure the production quality of ceramics, the soil must be broken and screened. Crushing equipment is usually used in the process of crushing the soil. The soil is divided into dry soil and wet soil. The crushing effect of conventional crushing equipment will be greatly reduced when processing these soils. At the same time, the crushing knife is prone to adhere to the soil. Summary of the invention

[0003] Based on this, it is necessary to provide a raw material crushing device for ceramic production to address the problems of poor crushing effect and single material processing of current crushing devices.

[0004] The above purpose is achieved through the following technical solutions:

[0005] A raw material crushing device for ceramic production comprises a shell, a rotating shaft and a crushing mechanism, wherein the shell is fixedly arranged, the rotating shaft is rotatably arranged in the shell, and the rotating shaft is arranged horizontally; the crushing mechanism comprises a mounting plate, a base, a crushing knife and a telescopic rod, the mounting plate is fixedly arranged on the rotating shaft, and the mounting plate is coaxial with the rotating shaft, the base is rotatably arranged on the mounting plate, the rotating axis of the base is parallel to the rotating axis of the rotating shaft, the crushing knife is arranged on the base, the crushing knife is formed by an elastic plate bending in a U-shape alternating in positive and negative directions, the opening direction of each U-shape is perpendicular to the extension direction of the rotating shaft of the base, the crushing knife extends in the radial direction of the rotating axis of the base, the telescopic rod is fixedly arranged on the base, and one end of the telescopic rod passes through the crushing knife along the extension direction of the crushing knife, and the telescopic rod is slidably connected to the crushing knife.

[0006] Preferably, the telescopic rod includes a fixed part and a sliding part, the fixed part is fixedly mounted on the base, the fixed part is provided with a groove, the sliding part is slidably arranged in the groove, a baffle is fixedly mounted on one end of the sliding part away from the base, the crushing knife is located between the base and the baffle, the baffle is slidably connected to the crushing knife, and the baffle is always in contact with the crushing knife, a spring is provided in the groove, the spring extends along the telescopic direction of the telescopic rod, two ends of the spring are respectively connected to the fixed part and the sliding part, the spring is always in a stretched state, and the spring stiffness coefficient is greater than the stiffness coefficient of the crushing knife, and the centrifugal force generated when the sliding part and the crushing knife rotate around the rotating shaft is greater than the elastic force of the spring.

[0007] Preferably, the thickness of the crushing knife increases gradually from one end close to the base to one end close to the baffle.

[0008] Preferably, a shearing group is provided in each U-shaped opening on the side where the crushing knife collides with the soil, and a shearing group includes two shearing knives, which are respectively located on two opposite sides of the U-shaped opening of the crushing knife, and the two shearing knives can abut against each other.

[0009] Preferably, the crushing knife is slidably arranged on the base along the second direction, the second direction is perpendicular to the extension direction of the rotation axis of the base, and the second direction is perpendicular to the extension direction of the telescopic rod. A slide groove is provided on the crushing knife, and the slide groove passes through the middle part of the crushing knife along the extension direction of the crushing knife. The telescopic rod is slidably arranged in the slide groove, and the telescopic rod can slide in the slide groove along the second direction. The dimensions of both ends of the telescopic rod are consistent with the dimensions of the slide groove, and the dimension of the middle part of the telescopic rod is smaller than the dimension of the slide groove.

[0010] Preferably, there are multiple crushing mechanisms, which extend along the axis of the rotating shaft. There are multiple groups of bases and crushing knives in each crushing mechanism, and the multiple groups of bases and the multiple groups of crushing knives are evenly arranged on the mounting plate around the axis of the rotating shaft. Two adjacent groups of crushing knives do not contact each other, and there are multiple crushing knives and bases in each group, which extend along the axis of the rotating shaft.

[0011] Preferably, a feed port is provided on the shell, and soil collides with the crushing knife after entering the shell from the feed port.

[0012] Preferably, the feed port is located above the rotating shaft, and the crushing knife can move from the bottom of the rotating shaft to a position close to the feed port.

[0013] Preferably, a filter is provided inside the shell to screen out the crushed soil.

[0014] Preferably, a screw conveying mechanism is provided at the bottom of the shell for conveying the screened soil.

[0015] The beneficial effects of the present invention are as follows: by setting the rotation direction of the crushing knife on the mounting plate, the crushing knife can be extended in the radial direction of the rotating shaft under the influence of centrifugal force when the rotating shaft rotates, and when the crushing knife encounters resistance when rotating around the rotating shaft, the crushing knife can rotate around its own axis. The setting of the shape of the crushing knife makes the crushing knife extend when subjected to centrifugal force, and the U-shaped opening becomes larger. At this time, when the crushing knife contacts soil to be crushed, the soil will enter between the U-shaped openings of the crushing knife. At this time, the crushing knife encounters resistance and rotates around the axis of the base. The centrifugal force generated by the rotation of the crushing knife around the rotating shaft decreases, the crushing knife begins to shrink, the U-shaped opening will decrease, and the soil in the U-shaped opening will be squeezed and crushed. At the same time, the soil directly hit by the crushing knife will also be crushed, thereby improving the crushing effect of the crushing knife. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1A schematic diagram of the structure of a raw material crushing device for ceramic production provided by an embodiment of the present invention;

[0017] Figure 2 A left side view of a raw material crushing device for ceramic production provided by an embodiment of the present invention;

[0018] Figure 3 for Figure 2 Sectional view along AA direction;

[0019] Figure 4 A front view of a crushing mechanism of a raw material crushing device for ceramic production provided by an embodiment of the present invention;

[0020] Figure 5 A diagram showing the state of a crushing knife of a crushing mechanism of a raw material crushing device for ceramic production provided by an embodiment of the present invention when subjected to centrifugal force;

[0021] Figure 6 A side view of a crushing mechanism of a raw material crushing device for ceramic production provided by an embodiment of the present invention;

[0022] Figure 7 for Figure 6 Cross-sectional view along the BB direction;

[0023] Figure 8 for Figure 6 Enlarged view of point C in the middle.

[0024] Among them: 100, shell; 101, rotating shaft; 102, mounting plate; 103, base; 104, crushing knife; 105, fixing part; 106, sliding part; 107, groove; 108, baffle; 109, spring; 110, shearing knife; 111, slide; 112, feed port; 113, filter screen; 114, screw conveying mechanism; 115, motor; 116, discharge port. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0027] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] like Figures 1 to 8 As shown, a raw material crushing device for ceramic production provided by an embodiment of the present invention includes a shell 100, a rotating shaft 101 and a crushing mechanism, wherein the shell 100 is fixedly arranged, the rotating shaft 101 is rotatably arranged in the shell 100, and the rotating shaft 101 is horizontally arranged; the crushing mechanism includes a mounting plate 102, a base 103, a crushing knife 104 and a telescopic rod, the mounting plate 102 is fixedly arranged on the rotating shaft 101, and the mounting plate 102 is coaxial with the rotating shaft 101, the base 103 is rotatably arranged on the mounting plate 102, and the rotating motion of the base 103 is relatively stable. The moving axis is parallel to the rotation axis of the rotating shaft 101. The crushing knife 104 is arranged on the base 103. The crushing knife 104 is formed by an elastic plate that is bent in a U shape in alternating positive and negative directions. The opening direction of each U shape is perpendicular to the extension direction of the rotating shaft 101 of the base 103. The crushing knife 104 extends along the radial direction of the rotation axis of the base 103. The telescopic rod is fixedly installed on the base 103, and one end of the telescopic rod penetrates the crushing knife 104 along the extension direction of the crushing knife 104. The telescopic rod is slidably connected to the crushing knife 104.

[0029] By setting the rotation direction of the crushing knife 104 on the mounting plate 102, the crushing knife 104 can be extended in the radial direction of the rotating shaft 101 under the influence of centrifugal force when the rotating shaft 101 rotates, and when the crushing knife 104 encounters resistance when rotating around the rotating shaft 101, the crushing knife 104 can rotate around its own axis. The shape of the crushing knife 104 is set so that when the crushing knife 104 is subjected to centrifugal force, the crushing knife 104 will extend and the U-shaped opening will become larger. At this time, when the crushing knife 104 contacts the soil to be crushed, the soil will enter between the U-shaped openings of the crushing knife 104. At this time, the crushing knife 104 rotates around the axis of the base 103 after encountering resistance. The centrifugal force generated by the crushing knife 104 rotating around the rotating shaft 101 is reduced, the crushing knife 104 begins to shrink, the U-shaped opening is reduced, and the soil in the U-shaped opening is squeezed and crushed. At the same time, the soil directly hit by the crushing knife 104 will also be crushed, thereby improving the crushing effect of the crushing knife 104.

[0030] In this embodiment, the telescopic rod includes a fixed portion 105 and a sliding portion 106. The fixed portion 105 is fixedly installed on the base 103. A groove 107 is provided on the fixed portion 105. The sliding portion 106 is slidably arranged in the groove 107. A baffle 108 is fixedly installed on one end of the sliding portion 106 away from the base 103. The crushing knife 104 is located between the base 103 and the baffle 108. The baffle 108 is slidably connected to the crushing knife 104, and the baffle 108 is always in contact with the crushing knife 104. A spring 109 is provided in the groove 107. The spring 109 extends along the telescopic direction of the telescopic rod. The two ends of the spring 109 are respectively connected to the fixed portion 105 and the sliding portion 106. The spring 109 is always in a stretched state, and the spring 109 is 9 has a stiffness coefficient greater than that of the crushing knife 104. The centrifugal force generated when the sliding portion 106 and the crushing knife 104 rotate around the rotating shaft 101 is greater than the elastic force of the spring 109. When the crushing knife 104 hits the soil and rotates around the rotating axis of the base 103, the centrifugal force generated by the crushing knife 104 and the sliding portion 106 rotating around the rotating shaft 101 will decrease. When the centrifugal force decreases to a level that is insufficient to overcome the elastic force of the spring 109, the spring 109 will pull the sliding portion 106 back into the groove 107, and the crushing knife 104 will reset under its own elasticity. When soil is trapped in the U-shaped opening of the crushing knife 104, the baffle 108 will push the crushing knife 104 to help the crushing knife 104 reset and crush the soil in its U-shaped opening.

[0031] In this embodiment, the thickness of the crushing knife 104 gradually increases from one end close to the base 103 to the end close to the baffle 108, and the elastic coefficient of the crushing knife 104 itself is uneven. The thicker the crushing knife 104 is, the greater its elastic coefficient is, and the less likely it is to be compressed. When the crushing knife 104 is subjected to centrifugal force, the crushing knife 104 will gather toward the position of the baffle 108, and the U-shaped part of the crushing knife 104 at one end close to the base 103 will not close the opening of the U-shaped part of the crushing knife 104 at the end away from the base 103, so that the U-shaped opening of the crushing knife 104 can be opened when subjected to centrifugal force.

[0032] In this embodiment, a shearing group is provided in each U-shaped opening on the side where the crushing knife 104 collides with the soil, and a shearing group includes two shearing knives 110, which are respectively located on two opposite sides of the U-shaped opening of the crushing knife 104, and the two shearing knives 110 can abut against each other. The two shearing knives 110 in the U-shaped opening of the crushing knife 104 are in an abutting state when the rotating shaft 101 is not rotating, that is, after the rotating shaft 101 rotates to cause the crushing knife 104 to generate centrifugal force, the arc-shaped contacting shearing knives 110 in the U-shaped opening of the crushing knife 104 can be separated, and when the centrifugal force after the crushing knife 104 collides with the soil is not sufficient to overcome the pulling force of the spring 109, the two shearing knives 110 in the U-shaped opening approach each other to crush the soil clamped in the U-shaped opening.

[0033] In this embodiment, the crushing knife 104 is slidably arranged on the base 103 along the second direction, the second direction is perpendicular to the extension direction of the rotation axis of the base 103, and the second direction is perpendicular to the extension direction of the telescopic rod. The crushing knife 104 is provided with a slide groove 111, and the slide groove 111 passes through the middle part of the crushing knife 104 along the extension direction of the crushing knife 104. The telescopic rod is slidably arranged in the slide groove 111, and the telescopic rod can slide in the slide groove 111 along the second direction. In the initial state of the crushing knife 104, the telescopic rod is located in the slide groove 111 away from the crushing knife The crushing knife 104 hits the side of the soil, and the telescopic rod is located on one side of the crushing knife 104. The pulling force of the spring 109 in the telescopic rod on the crushing knife 104 is uneven on the crushing knife 104. At this time, when the crushing knife 104 is subjected to centrifugal force, the U-shaped opening on the side where the crushing knife 104 hits the soil opens at a larger angle, which can knock in more soil and then crush it through the shear knife 110; the shape of the slide groove 111 is square, and the shape of the telescopic rod is adapted thereto, which can prevent the crushing knife 104 from rotating relative to the telescopic rod.

[0034] The size of the two ends of the telescopic rod is consistent with the size of the slide groove 111, and the size of the middle part of the telescopic rod is smaller than the size of the slide groove 111. When the crushing knife 104 contacts the soil, the middle part of the crushing knife 104 is subjected to less resistance from the telescopic rod, and the middle part of the crushing knife 104 will be more easily hit by the soil and move in the second direction away from the soil. The U-shaped opening in the middle of the crushing knife 104 will be reduced, and a part of the soil will be crushed first. Then, the middle part of the crushing knife 104 will reset under its own elasticity and hit the soil again; due to the cooperation between the two ends of the telescopic rod and the slide groove 111, the sliding distance of the crushing knives 104 at both ends of the telescopic rod is small, and the sliding distance is determined by the resistance of the soil. When the soil is dry, the reaction force generated when the crushing knife 104 hits the soil will be larger, and the crushing knife 104 will slide relative to the telescopic rod. At this time, the opening angle of the U-shaped opening on the side where the crushing knife 104 contacts the soil will be reduced, and the soil is not easy to enter the U-shaped opening, and the frontal impact force on the soil is greater; when the soil is moist or wet, the reaction force generated when the crushing knife 104 hits the soil will be smaller, and the wet soil will absorb part of the impact force, and the crushing knife 104 will not slide relative to the telescopic rod, and the U-shaped opening on the side where the crushing knife 104 hits the soil can still open a larger angle, thereby utilizing the shear knife 110 to provide shear crushing force for the wet soil.

[0035] In this embodiment, there are multiple crushing mechanisms, which extend along the axial direction of the rotating shaft 101. There are multiple groups of bases 103 and crushing knives 104 in each crushing mechanism. The multiple groups of bases 103 and the multiple groups of crushing knives 104 are evenly arranged on the mounting plate 102 around the axis of the rotating shaft 101. No two adjacent groups of crushing knives 104 contact each other. There are multiple numbers of each group of crushing knives 104 and bases 103. The multiple crushing knives 104 and bases 103 extend along the axial direction of the rotating shaft 101. The provision of multiple crushing knives 104 can improve the overall crushing effect of the raw material crushing device for ceramic production.

[0036] In this embodiment, a feed port 112 is provided on the shell 100. After the soil enters the shell 100 from the feed port 112, it collides with the crushing knife 104. The feed port 112 is opened on one side of the rotating shaft 101 in the vertical direction. The soil entering the shell 100 from the feed port 112 can contact with the crushing knives 104 in multiple groups of crushing mechanisms at the same time, thereby improving the crushing efficiency.

[0037] In this embodiment, the feed port 112 is located above the rotating shaft 101, and the crushing blade 104 can move from the bottom of the rotating shaft 101 to a position close to the feed port 112. Figure 3As shown, when the feed port 112 is located at the upper left of the crushing mechanism, the rotating shaft 101 rotates clockwise, so that the soil affected by gravity collides with the rotating crushing knife 104 relative to each other, thereby increasing the force of the collision between the soil and the crushing knife 104 and improving the crushing effect. At the same time, the impacted soil can continue to be affected by gravity and collide with the subsequent crushing knife 104 again after moving to high altitude.

[0038] In this embodiment, a filter screen 113 is provided inside the shell 100 for screening out the crushed soil. The filter screen 113 is fixedly installed inside the shell 100 and is located below the crushing mechanism. The crushed soil falls onto the filter screen 113 and is screened out.

[0039] In this embodiment, a screw conveying mechanism 114 is provided at the bottom of the housing 100 for conveying the sieved soil. A motor 115 is provided on the housing 100. One end of the rotating shaft 101 passes through the housing 100, and a pulley is provided on the end of the rotating shaft 101 passing through the housing 100. A transmission belt is provided between the output end of the motor 115 and the pulley. The motor 115 drives the pulley to rotate through the transmission belt, and the pulley drives the rotating shaft 101 to rotate. A transmission belt is also provided between the screw conveying mechanism 114 and the pulley. The screw conveying mechanism 114 is provided with a discharge port 116. The soil passing through the filter screen 113 will fall into the screw conveying mechanism 114. The rotation of the pulley will drive the screw conveying mechanism 114 to operate through the transmission belt between the screw conveying mechanism 114 and the pulley, and the soil is discharged from the discharge port 116 after being conveyed.

[0040] The working principle and working method of a raw material crushing device for ceramic production provided in this embodiment are as follows:

[0041] First, the operator slides the crushing knife 104 on the telescopic rod to the initial state, and then starts the motor 115. The motor 115 drives the pulley to rotate through the transmission belt between the motor 115 and the pulley, and the pulley drives the spiral conveying mechanism 114 to operate through the transmission belt between the pulley and the spiral conveying mechanism 114; then, soil is added into the shell 100 through the feed port 112. After the soil enters the shell 100, it collides with the rotating crushing knife 104, and the crushed soil falls onto the filter screen 113. After being screened by the filter screen 113, the crushed soil falls into the spiral conveying mechanism 114, and is discharged from the discharge port 116 after being transported by the spiral conveying mechanism 114.

[0042] When the rotating shaft 101 drives the crushing mechanism to rotate, the mounting plate 102 rotates with the rotation of the rotating shaft 101, and the mounting plate 102 drives the base 103 to rotate around the rotating shaft 101, and the base 103 drives the telescopic rod to rotate. The telescopic rod drives the crushing knife 104 to rotate through the friction between the telescopic rod and the crushing knife 104. When the crushing knife 104 and the telescopic rod rotate around the rotating shaft 101, centrifugal force will be generated. The centrifugal force will drive the telescopic rod to drive the base 103 to rotate on the mounting plate 102, and the centrifugal force will cause the telescopic rod to extend in the radial direction of the rotating shaft 101, and the sliding part 106 moves in the direction away from the fixing part 105, and the spring 109 is stretched, the length of the telescopic rod increases, and at the same time, the crushing knife 104 is subjected to the centrifugal force. The U-shaped opening of the crushing knife 104 is stretched and opened; when soil is added into the shell 100, the U-shaped opening of the crushing knife 104 provided with the shearing knife 110 will hit the soil; when the crushing knife 104 hits the soil, the obstruction of the soil will cause the crushing knife 104 to rotate around the rotation axis of the base 103, the centrifugal force on the crushing knife 104 and the telescopic rod is reduced, and the spring 109 begins to reset. The spring 109 pulls the sliding part 106 closer to the fixed part 105, and the sliding part 106 compresses the crushing knife 104 through the baffle 108. After the crushing knife 104 is compressed, the angle of its opened U-shaped opening is reduced, and the two opposite shearing knives 110 in the U-shaped opening come into contact to crush the soil in the U-shaped opening.

[0043] When the soil that is hit is relatively dry, it is necessary to increase the force of direct collision with the soil so that the soil can be better broken. At this time, the reaction force of the soil on the crushing knife 104 is relatively large, and the soil can push the crushing knife 104 and the telescopic rod to slide relative to each other, so that the telescopic rod is close to the side of the crushing knife 104 in contact with the soil, and the opening angle of the U-shaped opening on the side of the crushing knife in contact with the soil is reduced, so that the soil and the crushing knife 104 collide directly, increasing the impact force of the crushing knife 104 on the soil.

[0044] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A raw material crushing device for ceramic production, characterized in that: include: The shell body, the rotating shaft and the crushing mechanism, the shell body is fixedly arranged, the rotating shaft is rotatably arranged in the shell body, and the rotating shaft is arranged horizontally; the crushing mechanism includes a mounting plate, a base, a crushing knife and a telescopic rod, the mounting plate is fixedly arranged on the rotating shaft, and the mounting plate is coaxial with the rotating shaft, the base is rotatably arranged on the mounting plate, the rotating axis of the base is parallel to the rotating axis of the rotating shaft, the crushing knife is arranged on the base, the crushing knife is formed by an elastic plate bending in a U-shape alternating in positive and negative directions, the opening direction of each U-shape is perpendicular to the extension direction of the rotating shaft of the base, the crushing knife extends in the radial direction of the rotating axis of the base, the telescopic rod is fixedly arranged on the base, and one end of the telescopic rod passes through the crushing knife along the extension direction of the crushing knife, and the telescopic rod is slidably connected to the crushing knife; the telescopic rod includes a fixed part and a sliding part, the fixed part is fixedly arranged on the base, a groove is provided on the fixed part, the sliding part is slidably arranged in the groove, a baffle is fixedly installed on the end of the sliding part away from the base, the crushing knife is located between the base and The baffle is slidably connected with the crushing knife between the baffle plates, and the baffle is always in contact with the crushing knife. A spring is arranged in the groove, and the spring extends along the extension direction of the telescopic rod. Two ends of the spring are respectively connected to the fixed part and the sliding part, and the spring is always in a stretched state, and the stiffness coefficient of the spring is greater than the stiffness coefficient of the crushing knife. The centrifugal force generated when the sliding part and the crushing knife rotate around the rotating shaft is greater than the elastic force of the spring. When the crushing knife rotates with the rotating shaft, it is affected by the centrifugal force and extends in the radial direction of the rotating shaft, and when the crushing knife encounters resistance when rotating around the rotating shaft, the crushing knife can rotate around its own axis; so that when the crushing knife is subjected to centrifugal force, the crushing knife will extend, and the U-shaped opening will become larger. When it contacts the soil to be crushed, the soil will enter between the U-shaped opening of the crushing knife. At the same time, the crushing knife rotates around the axis of the base after encountering resistance, so that the centrifugal force generated by the rotation of the crushing knife around the rotating shaft is reduced, the crushing knife contracts, the U-shaped opening will be reduced, and the soil in the U-shaped opening is squeezed and crushed.

2. A raw material crushing device for ceramic production according to claim 1, characterized in that: The thickness of the crushing knife increases gradually from one end of the crushing knife close to the base to one end of the crushing knife close to the baffle.

3. A raw material crushing device for ceramic production according to claim 1, characterized in that: A shearing group is provided in each U-shaped opening on the side where the crushing knife collides with the soil. A shearing group includes two shearing knives. The two shearing knives are respectively located on two opposite sides of the U-shaped opening of the crushing knife, and the two shearing knives can abut against each other.

4. A raw material crushing device for ceramic production according to claim 1, characterized in that: The crushing knife is slidably arranged on the base along the second direction, the second direction is perpendicular to the extension direction of the rotation axis of the base, and the second direction is perpendicular to the extension direction of the telescopic rod. A slide groove is provided on the crushing knife, and the slide groove passes through the middle part of the crushing knife along the extension direction of the crushing knife. The telescopic rod is slidably arranged in the slide groove, and the telescopic rod can slide in the slide groove along the second direction. The dimensions of both ends of the telescopic rod are consistent with the dimensions of the slide groove, and the dimension of the middle part of the telescopic rod is smaller than the dimension of the slide groove.

5. A raw material crushing device for ceramic production according to claim 1, characterized in that: There are multiple crushing mechanisms, which extend along the axis of the rotating shaft. There are multiple groups of bases and crushing knives in each crushing mechanism, which are evenly arranged on the mounting plate around the axis of the rotating shaft. Two adjacent groups of crushing knives do not contact each other. There are multiple numbers of each group of crushing knives and bases, which extend along the axis of the rotating shaft.

6. A raw material crushing device for ceramic production according to claim 1, characterized in that: A feed port is provided on the shell, and soil enters the shell from the feed port and collides with the crushing knife.

7. A raw material crushing device for ceramic production according to claim 6, characterized in that: The feed inlet is located above the rotating shaft, and the crushing knife can move from the bottom of the rotating shaft to a position close to the feed inlet.

8. A raw material crushing device for ceramic production according to claim 1, characterized in that: A filter is provided inside the shell to screen out the crushed soil.

9. A raw material crushing device for ceramic production according to claim 8, characterized in that: A screw conveying mechanism is provided at the bottom of the shell body for conveying the screened soil.

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