A jaw crushing station

Abstract

The application belongs to the technical field of crushing station, and particularly relates to a jaw type crushing station. The jaw type crushing station comprises a rack, a track walking assembly arranged at the bottom of the rack, a feeding mechanism installed on the rack, a crushing host connected with the feeding mechanism, a material conveying belt arranged at the bottom of the crushing host, a hopper, a mounting frame installed at the bottom of the hopper, a vibrating motor installed on the mounting frame, supporting rollers arranged uniformly in the hopper, rotating shafts fixed on the two sides of each supporting roller, a first motor for driving the rotating shafts, supporting tables arranged at the bottom of each supporting roller, arc surfaces arranged on the two sides of each supporting table, and an auger rotating in each processing cavity. A first grate plate is arranged on the right side of each supporting table. The feeding mechanism can alleviate the problem of accumulation and thickening of viscous materials at the bottom of the hopper, reduce the absorption and dissipation of the vibration exciting force of the adhesion layer, and reduce the influence of the power attenuation of material conveying.

Description

Technical Field

[0001] This invention belongs to the field of crushing plant technology, specifically a jaw crushing plant. Background Technology

[0002] Tracked mobile jaw crushers are widely used primary crushing equipment in mining, construction waste recycling, and road infrastructure. They integrate the jaw crusher, vibrating feeder system, tracked chassis, and conveying mechanism into a single unit, eliminating the need for fixed infrastructure installation and allowing for on-site material crushing. The core working principle is as follows: after the material to be crushed is fed into the jaw crushing chamber by the feeding system, the moving jaw plate oscillates periodically relative to the fixed jaw plate. Through compression, splitting, and bending, large pieces of material are crushed to the set particle size. The crushed material is then discharged through the discharge conveying mechanism. It is mainly used for the coarse crushing process of medium-hard or harder materials such as large pieces of ore and waste concrete blocks.

[0003] Existing jaw crusher plants typically employ a feeding system consisting of a receiving hopper and a bar-type vibrating feeder. During operation, an excavator directly feeds the material to be crushed into the receiving hopper, where it falls into a vibrating feed trough with grate bars. The trough is driven by directional excitation from symmetrically arranged vibrating motors on both sides, causing it to vibrate at high frequency, resulting in a bouncy, forward-moving conveyor for the material, which is then stably fed into the main crushing unit. The grates are arranged parallel to each other at the bottom of the feed trough, with a set screening gap between adjacent grates. During material transport, fine particles and gravel smaller than the gap can pass directly through and be discharged as finished product via a bypass conveyor, without needing to enter the main crushing unit.

[0004] However, in practical engineering applications, the materials to be crushed often have a high moisture content due to factors such as open-air stockpiling, mining during the rainy season, river collection, or in-situ water content of construction waste. In addition, the materials are generally mixed with soil and fine powder. When such wet and sticky materials enter the receiving bin, they will cause systemic failure of the feeding system. The free water carried by the material mixes thoroughly with the fine powder and soil to form a highly viscous mud system, which will continue to adhere to the bottom of the feeding trough, forming a viscous adhesive layer with strong cohesion. Fine crushed materials are easily wrapped and adhered to the surface of the viscous layer, making it impossible to achieve leaping forward conveying with the vibration of the trough. At the same time, the viscous adhesive layer will absorb and dissipate the vibration excitation force, change the original vibration mode of the trough, and cause the material forward momentum to continuously decrease. As the operation time increases, the adhesive layer at the bottom of the trough will continue to thicken, and the material flow cross section will gradually shrink. In severe cases, a material arch will form at the cone of the receiving bin, completely blocking the material conveying. At the same time, the hardness and adhesion of the dried viscous mixture are high, making manual cleaning difficult and requiring frequent shutdowns to remove the material, which greatly reduces the effective operating time of the equipment.

[0005] Meanwhile, the slurry gradually fills the screening gaps between the grate bars, causing blockages or even complete closure of the grate openings. Fine particles that have moved to the grate bar area cannot pass through the gaps for pre-screening and instead enter the crushing main unit along with the coarse materials. The failure of the pre-screening function significantly increases the ineffective load on the crushing main unit, leading to a significant decrease in the overall processing capacity and a marked increase in energy and fuel consumption per unit of finished product. Furthermore, it causes the adhesion layer to adhere to the jaw plates, forming a buffer layer and weakening the transmission efficiency of the jaw plate's compressive force. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies and solve the above-mentioned technical problems, this invention proposes a jaw crusher station. By setting up a feeding mechanism, it can alleviate the problem of thickening of sticky materials at the bottom of the hopper, reduce the absorption and dissipation of vibration excitation force by the adhesion layer, and reduce the impact of material conveying power attenuation; the specific structure is as follows.

[0007] A jaw crusher includes a frame, with a tracked walking assembly at the bottom of the frame; a feeding mechanism is installed on the frame; the feeding mechanism is connected to the crushing host; a conveyor belt is provided at the bottom of the crushing host, and an iron removal assembly is installed above the conveyor belt. The feeding mechanism includes a hopper with the hopper opening facing the crushing host; a mounting frame is installed at the bottom of the hopper, and a vibration motor is installed on the mounting frame; The hopper is equipped with evenly arranged support rollers, and the two sides of the support rollers are in contact with the hopper. The support rollers are made of low alloy high-strength structural steel and have a rubber skin layer fixed on their surface. The two sides of the support rollers are fixed with rotating shafts, and the rotating shafts rotate on the hopper and are driven by a first motor. Each of the support rollers is provided with a support platform at its bottom, and the top of the support platform is in contact with the arc surface of the bottom of the support roller, and the bottom of the support platform is fixed to the hopper; the two sides of the support platform are arc surfaces; The two adjacent support platforms fit together, and the opposite side of the arc surface of the adjacent support platforms forms a three-quarter circle processing cavity, with the opening of the processing cavity facing upward; the processing cavity is located between two adjacent rotating rollers; Each of the processing chambers is equipped with a rotating auger, one of which rotates on the hopper and is driven by a second motor; the other side of the auger extends into the discharge hopper; a guide hopper is fixed to the bottom of the side of the auger extending into the discharge hopper. The support platform has a first grate plate on its right side, and the first grate plate has a trough; long plates are fixed on both sides of the bottom of the first grate plate, and the long plates are fixed in the hopper; a vertical hopper is provided below the first grate plate, and a guide belt is provided at the bottom of the vertical hopper.

[0008] In a preferred embodiment of the present invention, each of the support rollers is provided with a groove; a top plate slides within the groove, and the top plate is made of low-alloy high-strength structural steel. The top plate is fitted to the hopper on both sides; a guide rod is fixed inside the top plate and extends to both sides of the top plate; the guide rod is made of low alloy high strength structural steel. The guide rod has fan-shaped grooves on both sides of the hopper, with the top of the fan-shaped grooves being arc-shaped and the bottom being V-shaped. The guide rod slides in the fan-shaped grooves. When the guide rod rotates with the support roller to the bottom of the fan-shaped groove, the top plate is completely retracted into the groove. When the guide rod rotates with the support roller to the left inclined position of the fan-shaped groove, the top plate gradually extends out of the groove. When the guide rod rotates with the support roller to the top arc surface of the fan-shaped groove, the top plate extends to its limit position. When the guide rod rotates with the support roller to the left inclined position of the fan-shaped groove, the top plate gradually retracts into the groove.

[0009] In a preferred embodiment of the present invention, the side of the top plate extending out of the groove is tapered; The top plate fits tightly against the groove; the two sides of the groove fit against the side wall of the hopper; when the top plate rotates with the support roller, it approaches the adjacent support roller but does not contact it.

[0010] In a preferred embodiment of the present invention, the outer ring surface of the support roller is an arc-shaped surface with a central diameter smaller than the diameters on both sides; The top surface of the support platform is also an arc surface that fits the outer arc surface of the support roller; when the top plate rotates to the lower position, it still retracts completely into the groove.

[0011] In a preferred embodiment of the present invention, a dispensing mechanism is provided above the hopper; the dispensing mechanism includes a first inclined plate; The first inclined plate is fixed inside the hopper; a second inclined plate is provided on the right side of the first inclined plate, and the first and second inclined plates form a V-shape. At the top of the second inclined plate, there are two fixed limiting blocks inside the hopper, and the second inclined plate passes through the two limiting blocks and is slidably connected with the two limiting blocks; A fixing plate is fixed to the side of the second inclined plate near the first inclined plate; a first hydraulic cylinder is fixed to the limiting block located below the second inclined plate, and the extension rod of the first hydraulic cylinder is fixed to the fixing plate.

[0012] In a preferred embodiment of the present invention, a push plate is fixed to the surface of the first inclined plate; guide plates are fixed to both sides of the push plate. A fixing block is fixed above the two guide plates, and the guide plates are restricted between the fixing block and the first inclined plate, and the guide plates are slidably connected to the fixing block and the first inclined plate; The second inclined plate has two limiting plates on both sides, one above the other, and the two sides of the second inclined plate slide within the limiting plates. A protective chamber is provided between the guide plate and the second inclined plate; two upright blocks are provided inside the protective chamber, and both upright blocks are fixed on the hopper; a rotating shaft is provided on each of the two upright blocks, and a gear is fixed on the side of the rotating shaft facing the guide plate and the inclined plate, and the two gears are respectively located close to the guide plate and the second inclined plate. A sprocket is fixed on the side of the rotating shaft away from the guide plate and the second inclined plate, and the two sprockets are connected by a chain. The two guide plates have a first toothed groove on opposite sides, and the first toothed groove is a through design; the second inclined plate also has a first toothed groove on both sides, and the first toothed groove is a through design, and the first toothed groove is located inside the limiting plate; The two gears respectively mesh with the first tooth groove that is close to each other.

[0013] In a preferred embodiment of the present invention, a second grate is provided on the right side of the first grate; the openings of the drain grooves on the first grate and the second grate correspond to each other, and the second grate and the first grate are arranged crosswise. The second grate plate has inverted J-shaped plates fixed on both sides of its end, and the inverted J-shaped plates slide on the side wall of the hopper; a second hydraulic cylinder is installed on the opposite side of the two inverted J-shaped plates, and the extension rod of the second hydraulic cylinder is fixed on the inverted J-shaped plates.

[0014] In a preferred embodiment of the present invention, slides are provided on both sides of the trough of the first grate plate, and the bottom surface of the slides is provided with uniformly arranged second toothed grooves. An arc-shaped block is fixed to one side of the second grate plate extending into the groove of the first grate plate; a rotating shaft is mounted on the arc-shaped block, and both sides of the rotating shaft extend into the slide rail; gear teeth are fixed on both sides of the rotating shaft, and the gear teeth mesh with the second tooth groove; and a lever plate is fixed on both sides of the arc-shaped block on the rotating shaft.

[0015] In a preferred embodiment of the present invention, a driven plate is fixed to the top of the two inverted J-shaped plates; a vertical plate is fixed to the middle of the driven plate, and the vertical plate is in contact with the side wall of the silo. The driven plate has a vertical plate at its end, and the bottom of the vertical plate rotates on the hopper; the vertical plate has a convex groove on the side facing the driven plate of the hopper; a convex block slides in the convex groove; The convex block extends into a convex groove; two rotating blocks are fixed on the driven plate, and the side of the convex block extending into the convex groove rotates between the two rotating blocks.

[0016] In a preferred embodiment of the present invention, a sliding groove is provided in the vertical plate, and the sliding groove is not connected with the convex groove, and the sliding groove is in contact with the side wall of the hopper. A sliding plate slides within the chute, extending to the top of the vertical plate and adhering to the side wall of the hopper; a sliding shaft is fixed to the top of the sliding plate. The top of the hopper is fixed with an arc-shaped sliding frame, and the sliding shaft slides within the arc-shaped sliding frame; a limiting groove is provided on the hopper, and the limiting groove is connected to the end of the arc-shaped sliding frame; the limiting groove and the second inclined plate are spaced apart and are parallel to each other.

[0017] The beneficial effects of this invention are as follows: 1. The jaw crusher of this invention, through the combined action of continuous rotation of the support rollers and scraping of the support platform, can continuously remove viscous materials such as mud adhering to the roller surface, and discharge them in a timely manner through the auger in the processing chamber. This effectively alleviates the problem of thickening of viscous materials at the bottom of the hopper, reduces the absorption and dissipation of vibration excitation force by the adhesion layer, reduces the impact of material conveying power attenuation, helps maintain the normal jumping conveying state of materials, and reduces the frequency of material bridging, blockage, and manual cleaning after drying. At the same time, the continuous separation and discharge of viscous materials in the support roller section can reduce the probability of viscous materials adhering to the surface of the first grate, reduce the risk of the chute being clogged or even completely closed, and help maintain the stable screening capacity of the first grate. It can also reduce the amount of viscous mud entering the crushing host with the material, alleviating the problem of mud forming a buffer layer on the surface of the jaw plate and weakening the crushing efficiency.

[0018] 2. The jaw crusher of this invention, through the coordination of the guide rod and the fan-shaped groove, enables the top plate to circulate and extend with the rotation of the support rollers. The extended top plate can scrape and push the bridging material and stuck adhesive layer at the gap between adjacent support rollers, which can break the bridging structure of sticky materials, reduce the probability of the support rollers being completely blocked by the adhesive layer, and ensure the stable operation of the pre-screening function between the support rollers. At the same time, the extended conical top plate can increase the local pushing force on the material. Combined with the rotary conveying of the support rollers and the vibratory conveying of the hopper, it can compensate for some of the dissipation of vibration excitation force by sticky materials, which helps to maintain a stable forward conveying state of the material and reduce the phenomenon of material stagnation and insufficient conveying power.

[0019] 3. The jaw crusher of the present invention drives the vertical plate to rotate through the transmission structure of the convex block and the vertical plate, which cleans the side wall area above the support roller. This removes sticky materials adhering to the side wall, reducing the risk of long-term accumulation and hardening of the adhesive layer, making it difficult to clean manually. At the same time, when the sliding shaft moves along the limiting groove, it gradually pulls the sliding plate out of the groove and extends the coverage area of ​​the side wall scraping, further improving the cleaning coverage of the hopper side wall and reducing the dead corner area of ​​the adhesive layer residue. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is an overall diagram of the jaw crusher station of the present invention; Figure 2 This is a structural diagram of the feeding mechanism in this invention; Figure 3 This is a structural diagram of the feeding mechanism from another perspective in this invention; Figure 4 This is an internal structural diagram of the feeding mechanism in this invention; Figure 5 This is a structural diagram of the component mechanism in this invention; Figure 6 This is a structural diagram of the support roller, support platform, auger, and fan-shaped groove in this invention; Figure 7 This is a diagram showing the contraction state of the top plate when the guide rod is in different positions of the fan-shaped groove in this invention; Figure 8 This is a structural diagram of the first grate plate, the second grate plate, and the vertical plate in this invention; Figure 9 This is the present invention. Figure 8 Enlarged view of a portion of point A in the middle; Figure 10 This is the present invention. Figure 8 Enlarged view of a section at point B in the middle; Figure 11 This is a top view of the feeding mechanism in this invention; Figure 12 This is the present invention. Figure 11 Sectional view at CC; Figure 13 This is the present invention. Figure 12 Enlarged view of a section at point D; Figure 14 This is the present invention. Figure 12 Enlarged view of a section at point E in the middle; Figure 15 This is the present invention. Figure 12 Enlarged view of a section at point F in the middle; Figure 16 This is the present invention. Figure 12 Enlarged view of a section at point G in the middle.

[0022] In the diagram: 1. Frame; 11. Tracked walking assembly; 12. Feeding mechanism; 13. Crusher; 14. Conveyor belt; 15. Iron removal assembly; 2. Hopper; 21. Support roller; 22. Support platform; 23. Screwdriver; 24. Guide bin; 3. Groove; 31. Top plate; 32. Guide rod; 33. Sector groove; 4. First inclined plate; 41. Second inclined plate; 42. Limiting block; 43. Fixing plate; 44. First hydraulic cylinder; 5. Push plate; 51. Guide plate; 52. Fixing block; 53. Limiting plate; 5 4. Vertical block; 55. Gear; 56. Chain; 57. First tooth groove; 6. First grate plate; 61. Second grate plate; 62. Inverted J-shaped plate; 63. Second hydraulic cylinder; 64. Slide rail; 65. Second tooth groove; 66. Arc-shaped block; 67. Rotating rod; 68. Gear tooth; 69. Pulley plate; 7. Driven plate; 71. Vertical plate; 72. Rotating block; 8. Vertical plate; 81. Convex groove; 82. Convex block; 83. Slide groove; 84. Slide plate; 85. Slide shaft; 86. Arc-shaped slide frame; 87. Limiting groove. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0024] like Figures 1 to 16 As shown, the jaw crusher of the present invention includes a frame 1, and a tracked walking assembly 11 is provided at the bottom of the frame 1; a feeding mechanism 12 is installed on the frame 1; the feeding mechanism 12 is connected to the crushing host 13; a conveyor belt 14 is provided at the bottom of the crushing host 13, and an iron removal assembly 15 is installed above the conveyor belt 14; the feeding mechanism 12 includes a hopper 2, and the opening of the hopper 2 faces the crushing host 13; a mounting frame is installed at the bottom of the hopper 2, and a vibrating device is installed on the mounting frame. The material hopper 2 is equipped with evenly arranged support rollers 21, with both sides of the support rollers 21 in contact with the material hopper 2. The support rollers 21 are made of low-alloy high-strength structural steel and have a rubber skin layer fixed on their surface. Both sides of the support rollers 21 are fixed with rotating shafts, which rotate on the material hopper 2 and are driven by the first motor. Each support roller 21 has a support platform 22 at its bottom, with the top of the support platform 22 in contact with the arc surface of the bottom of the support roller 21 and the bottom of the support platform 22 is fixed on the material hopper 2. Both sides of the support platform 22 are arc surfaces.

[0025] The adjacent support platforms 22 are fitted together, and the opposite side of the arc surface of the adjacent support platforms 22 forms a three-quarter circle processing cavity, with the opening of the processing cavity facing upwards; the processing cavity is located between two adjacent rotating rollers; each processing cavity has a rotating auger 23, one of which rotates on the hopper 2 and is driven by a second motor; the other side of the auger 23 extends out of the hopper 2; a guide hopper 24 is fixed to the bottom of the side of the auger 23 extending out of the hopper 2; a first grate plate 6 is provided on the right side of the support platform 22, and a trough is opened on the first grate plate 6; long plates are fixed on both sides of the bottom of the first grate plate 6, and the long plates are fixed inside the hopper 2; a vertical hopper is provided below the first grate plate 6, and a guide belt is provided at the bottom of the vertical hopper.

[0026] When operating the jaw crusher, the entire frame 1 is first driven to the target working area by the crawler walking assembly 11. Then, the feeding mechanism 12, the crushing host 13, the conveyor belt 14, and the iron removal assembly 15 are started in sequence to enter the working state. During the operation of the feeding mechanism 12, the vibration motor, the first motor, and the second motor are started and operated synchronously. The vibration motor drives the entire hopper 2 to generate high-frequency directional vibration through the mounting frame. Multiple first motors drive multiple support rollers 21 to rotate clockwise in a cycle through corresponding rotating shafts. The two sides of the support rollers 21 are in contact with the inner wall of the hopper 2. Multiple second motors drive the corresponding augers 23 to rotate synchronously. The augers 23 rotate continuously in the processing chamber formed by the arc surfaces of the two adjacent support platforms 22.

[0027] Specifically, the excavator feeds the stone to be crushed into the hopper 2, and the stone falls onto the upper surface of the evenly arranged support rollers 21. Under the excitation of the vibrating motor, the stone vibrates at a high frequency along the entire hopper 2, and is conveyed at a constant speed along the surface of the support rollers 21 towards the crushing host 13 in a jumping manner. Since each support roller 21 is equipped with a support platform 22 at its bottom, the top of the support platform 22 fits against the arc surface of the bottom of the support roller 21, and the bottom of the support platform 22 is fixed to the hopper 2, it can form a stable bottom support for the support roller 21, improve the bending load-bearing capacity of the support roller 21, and prevent the support roller 21 from deforming due to the impact of large pieces of stone. At the same time, the support rollers 21 adopt a low-profile design. Made of high-strength alloy structural steel and with a rubber layer fixed to its surface, it has high structural strength and buffering capacity, which can resist the impact load during stone unloading and reduce the risk of structural deformation and impact damage. The support platform 22 provides full-arc support to the bottom of the support roller 21. Combined with the support roller 21 base made of low-alloy high-strength structural steel, it can effectively improve the bending and impact resistance of the roller at the feeding end, and reduce the risk of roller deformation and breakage under the impact of large stone unloading. The rubber layer on the surface of the support roller 21 can further buffer the unloading impact force, which helps to improve the structural reliability and service life of the feeding mechanism 12.

[0028] More specifically, during the material conveying process, crushed materials, powders, and fine impurities in the stone with a particle size smaller than the gap between adjacent support rollers 21 will fall downward from the gap between support rollers 21 and fall into the processing chamber at the corresponding position below; the rotating auger 23 continuously pushes the crushed materials and powders that fall into the processing chamber to move axially. One end of the auger 23 is rotatably installed on the inner wall of the hopper 2, and the other end extends through the through hole in the side wall of the hopper 2 to the outside of the hopper 2. The material is finally discharged into the guide chamber 24 through the through hole, completing the first-stage pre-screening operation; When the material is conveyed to the top of the first grate plate 6 by the support roller 21, the trough on the first grate plate 6 can perform a second-stage screening of the remaining fine particles in the material. The first grate plate 6 is fixed inside the hopper 2 by the long plates on both sides of the bottom. The screened fine material falls into the vertical hopper below and is conveyed outward by the guide belt at the bottom of the vertical hopper, thereby improving the overall pre-screening accuracy and fine material separation rate. Then the stone will enter the crushing host 13 for crushing. After crushing, the stone is conveyed by the conveyor belt and removed by the iron removal component 15.

[0029] Furthermore, when processing stone materials with high moisture content and attached soil, the material is continuously vibrated under the overall vibration of the hopper 2. The sticky powder and clumps of broken material formed by mixing with water gradually loosen under the vibration and fall into the processing chamber through the gap between adjacent support rollers 21. They are then pushed out to the guide chamber 24 by the auger 23. At the same time, since the support rollers 21 are in a continuous rotating state, if some powder and soil form an adhesive layer on the surface of the support rollers 21 and cannot be removed by themselves, the adhesive layer will rotate with the support rollers 21. When the roller surface with the adhesive layer rotates to the position of the bottom support platform 22, the top arc surface of the support platform 22 is in contact with the surface of the support roller 21, which can scrape off the adhesive layer on the roller surface. The scraped-off adhesive layer falls into the processing chamber below and is then pushed out by the auger 23. Through the continuous rotation of the support rollers 21 and the scraping action of the support platform 22, the sticky material adhering to the roller surface can be continuously carried out and discharged, breaking the positive feedback process of the adhesive layer continuously thickening.

[0030] Furthermore, the two-stage screening structure, which combines the primary screening with the primary screening with the first grate plate and the secondary screening with the gap of the support roller 21, can separate fine particles and powders in the material, improve the fine material separation efficiency, reduce the proportion of ineffective fine material entering the crushing host 13, and thus help reduce the ineffective load of the crushing host 13 and improve the overall processing efficiency. Meanwhile, through the continuous rotation of the support roller 21 and the scraping action of the support platform 22, the sticky mud-like materials adhering to the roller surface can be continuously removed and discharged in time through the auger 23 in the processing chamber. This can effectively alleviate the problem of sticky materials accumulating and thickening at the bottom of the hopper 2, reduce the absorption and dissipation of vibration excitation force by the adhesion layer, reduce the impact of material conveying power attenuation, help maintain the normal jumping conveying state of the material, and reduce the frequency of material bridging, blockage, and manual cleaning after drying. At the same time, the sticky material is continuously separated and discharged at the support roller 21, which can reduce the probability of sticky material adhering to the surface of the first grate plate 6, reduce the risk of the trough being blocked or even completely closed, and help maintain the stable screening capacity of the first grate plate 6. It can also reduce the amount of sticky mud entering the crushing host 13 with the material, alleviate the problem of mud forming a buffer layer on the surface of the jaw plate and weakening the crushing efficiency.

[0031] In one embodiment of the present invention, each of the support rollers 21 is provided with a groove 3; a top plate 31 slides within the groove 3, and the top plate 31 is made of low-alloy high-strength structural steel; the two sides of the top plate 31 are in contact with the hopper 2; a guide rod 32 is fixed within the top plate 31, and the guide rod 32 extends to both sides of the top plate 31; the guide rod 32 is made of low-alloy high-strength structural steel; fan-shaped grooves 33 are provided on both sides of the guide rod 32 on the hopper 2, and the top of the fan-shaped grooves 33 is arc-shaped and the bottom is V-shaped; The guide rod 32 slides within the fan-shaped groove 33. When the guide rod 32 rotates with the support roller 21 to the lowest point of the fan-shaped groove 33, the top plate 31 is completely retracted into the groove 3. When the guide rod 32 rotates with the support roller 21 to the left inclined position of the fan-shaped groove 33, the top plate 31 gradually extends out of the groove 3. When the guide rod 32 rotates with the support roller 21 to the top arc surface of the fan-shaped groove 33, the top plate 31 extends to its limit position. When the guide rod 32 rotates with the support roller 21 to the left inclined position of the fan-shaped groove 33, the top plate 31 gradually retracts into the groove 3.

[0032] In this embodiment, the top plate 31 extends out of the groove 3 on one side in a conical shape; the top plate 31 fits tightly against the groove 3; the two sides of the groove 3 fit against the side wall of the hopper 2; when the top plate 31 rotates with the support roller 21, it approaches the adjacent support roller 21 but does not contact it.

[0033] In this embodiment, the outer ring surface of the support roller 21 is an arc-shaped surface with a central diameter smaller than the diameters on both sides; the top surface of the support platform 22 is also an arc-shaped surface that fits the outer ring arc-shaped surface of the support roller 21; when the top plate 31 rotates to the lower position, it is still completely retracted into the groove 3.

[0034] During the clockwise rotation of the support roller 21, the top plate 31 embedded in the groove 3 of each support roller 21 and the guide rod 32 fixed inside the top plate 31 rotate synchronously with the support roller 21; the two ends of the guide rod 32 extend into the corresponding fan-shaped groove 33 on the side wall of the hopper 2, and slide cyclically along the contour trajectory of the fan-shaped groove 33; when the guide rod 32 rotates with the support roller 21 to the lowermost position of the fan-shaped groove 33, the guide rod 32 retracts inward along the groove path, causing the top plate 31 to completely retract into the groove 3; when the guide rod 32 rotates with the support roller 21 to the left .... When in the lateral tilt position, the guide rod 32 moves outward along the inclined surface of the groove, causing the top plate 31 to gradually extend out of the groove 3; when the guide rod 32 rotates with the support roller 21 to the top arc surface position of the fan-shaped groove 33, the top plate 31 extends to the limit position and continues to rotate with the support roller 21 in this extended state; when the guide rod 32 rotates with the support roller 21 to the right lateral tilt position of the fan-shaped groove 33, the guide rod 32 retracts inward along the groove path, causing the top plate 31 to gradually retract into the groove 3, thus forming a cyclic extension and retraction action of extension, holding, and retraction with the continuous rotation of the support roller 21.

[0035] Specifically, when bridging of sticky material or jamming of the adhesive layer occurs in the gap between adjacent support rollers 21, the top plate 31, which extends cyclically with the support rollers 21, can be inserted into the material and adhesive layer in the gap. This scrapes away the adhesive layer that slides relative to the support rollers 21 and pushes it forward, breaking the material bridging structure and preventing sticky material from accumulating and jamming at the roller gap. Since the extended end of the top plate 31 is a conical structure, when it rotates with the support rollers 21 and pushes the stone, the conical end face contacts the stone, which can increase the local pressure and help strengthen the pushing force on the material, assisting in the forward conveying of the material. At the same time, both the top plate 31 and the guide rod 32 are made of low-alloy high-strength structural steel, which has high structural strength and can withstand the impact load when the stone is unloaded, reducing the risk of structural deformation and impact damage. In addition, based on the arc-shaped outer ring structure with a smaller diameter in the middle of the support rollers 21, the material can be guided to gather in the middle area of ​​the support rollers 21, reducing the situation of material shifting to both sides and being conveyed off-center, which helps to feed the material into the crushing host 13 evenly and centrally.

[0036] More specifically, through the trajectory coordination of the guide rod 32 and the fan-shaped groove 33, the top plate 31 rotates and expands and contracts cyclically with the support roller 21. The extended top plate 31 can scrape and push the bridging material and stuck adhesive layer at the gap between adjacent support rollers 21, which can break the bridging structure of sticky material, reduce the probability of the support rollers 21 being completely blocked by the adhesive layer, and ensure the stable operation of the pre-screening function between the support rollers 21. At the same time, the extended conical top plate 31 can increase the local pushing force on the material. Combined with the rotary conveying of the support roller 21 and the vibratory conveying of the hopper 2, it can compensate for some of the dissipation of the vibration excitation force by sticky material, which helps to maintain the stable forward conveying state of the material and reduce the phenomenon of material stagnation and insufficient conveying power.

[0037] As an embodiment of the present invention; a weighting mechanism is provided above the hopper 2; the weighting mechanism includes a first inclined plate 4; the first inclined plate 4 is fixed inside the hopper 2; a second inclined plate 41 is provided on the right side of the first inclined plate 4, and the first inclined plate 4 and the second inclined plate 41 form a V-shape; At the top of the second inclined plate 41, there are two limiting blocks 42 fixed inside the hopper 2, and the second inclined plate 41 passes through the two limiting blocks 42 and is slidably connected with the two limiting blocks 42; a fixing plate 43 is fixed on the side of the second inclined plate 41 near the first inclined plate 4; a first hydraulic cylinder 44 is fixed on the limiting block 42 below the second inclined plate 41, and the extension rod of the first hydraulic cylinder 44 is fixed on the fixing plate 43.

[0038] In this embodiment, a push plate 5 is fixed to the surface of the first inclined plate 4; guide plates 51 are fixed to both sides of the push plate 5; a fixing block 52 is fixed above the two guide plates 51, and the guide plates 51 are restricted between the fixing block 52 and the first inclined plate 4, and the guide plates 51 are slidably connected to the fixing block 52 and the first inclined plate 4; two limiting plates 53 are provided on both sides of the second inclined plate 41, and the two sides of the second inclined plate 41 slide within the limiting plates 53; a protective chamber is provided between the guide plates 51 and the second inclined plate 41; two upright blocks 54 are provided in the protective chamber, and the upright blocks 54 are fixed to the hopper 2; both upright blocks 54 are rotatable. A rotating shaft is provided, and a gear 55 is fixed on the side of the rotating shaft facing the guide plate 51 and the inclined plate 41. The two gears 55 are located close to the guide plate 51 and the second inclined plate 41, respectively. A sprocket is fixed on the side of the rotating shaft away from the guide plate 51 and the second inclined plate 41, and the two sprockets are connected by a chain 56. The two guide plates 51 have a first tooth groove 57 on opposite sides, and the first tooth groove 57 is a through design. The second inclined plate 41 also has a first tooth groove 57 on both sides, and the first tooth groove 57 is a through design and is located inside the limiting plate 53. The two gears 55 mesh with the adjacent first tooth grooves 57, respectively.

[0039] When the excavator is loading materials, the stones to be crushed are first placed into the V-shaped storage area formed by the first inclined plate 4 and the second inclined plate 41. During operation, the first hydraulic cylinder 44 is controlled to retract, and the extension rod of the first hydraulic cylinder 44 pulls the fixed plate 43 to move synchronously. This causes the second inclined plate 41 to slowly slide to the upper right along the guide path of the two limit blocks 42, gradually expanding the bottom discharge opening between the first inclined plate 4 and the second inclined plate 41. The stones stored in the V-shaped area then slowly slide down and fall evenly onto the support roller 21 below, thereby reducing the impact load on the support roller 21 from direct stone discharge, reducing the risk of impact deformation and wear on the support roller 21, and helping to extend the service life of the feed end components. By controlling the retraction speed of the first hydraulic cylinder 44, the moving speed of the second inclined plate 41 can be adjusted, thereby controlling the falling speed and single discharge amount of the stones, ensuring that the stones always fall from the area between the first inclined plate 4 and the second inclined plate 41 to the designated position of the support roller 21.

[0040] Specifically, during the sliding process of the second inclined plate 41 along the two sets of limiting plates 53 arranged vertically, the first toothed grooves 57 on both sides of the plate will drive the meshing gears 55 to rotate synchronously. The two gears 55 are fixed on the side of the rotating shaft facing the guide plate 51 and the second inclined plate 41. The rotating shaft is rotatably mounted on the upright block 54 inside the protective compartment. Both rotating shafts are fixed with sprockets on the side away from the guide plate 51 and the second inclined plate 41. The two sprockets are synchronously transmitted through the chain 56. When the second inclined plate 41 moves to the upper right and drives the corresponding side gear 55 to rotate, the transmission action of the sprocket and the chain 56 will drive the other side gear 55 to rotate counterclockwise. The first toothed grooves 57 on the guide plate 51 and the first toothed grooves 57 on the guide plate 53 will drive the meshing gears 55 to rotate synchronously. The toothed groove 57 engages, thereby pushing the guide plate 51 to slide downward along the surface of the first inclined plate 4. Since the guide plate 51 is restricted between the fixed block 52 and the first inclined plate 4 and can slide relative to the two, the push plate 5 fixed at the end of the guide plate 51 moves synchronously along the surface of the first inclined plate 4 with the guide plate 51, which can scrape off the mud, powder and other adhesive layers adhering to the surface of the first inclined plate 4. At the same time, during the sliding process of the second inclined plate 41 relative to the two limiting blocks 42, the end face of the limiting block 42 can scrape off the adhesive layer on the surface of the second inclined plate 41, and simultaneously complete the cleaning of the surface of the second inclined plate 41, avoiding the problem of sticky materials accumulating and thickening on the surface of the first inclined plate 4 and the second inclined plate 41 and becoming difficult to clean after drying.

[0041] As an embodiment of the present invention; a second grate 61 is provided on the right side of the first grate 6; the openings of the troughs on the first grate 6 and the second grate 61 correspond to each other, and the second grate 61 and the first grate 6 are arranged crosswise; inverted J-shaped plates 62 are fixed on both sides of the end of the second grate 61, and the inverted J-shaped plates 62 slide on the side wall of the hopper 2; a second hydraulic cylinder 63 is installed on the opposite side of the two inverted J-shaped plates 62, and the extension rod of the second hydraulic cylinder 63 is fixed on the inverted J-shaped plates 62.

[0042] In this embodiment, slides 64 are provided on both sides of the groove of the first grate plate 6, and the bottom surface of the slides 64 is provided with evenly arranged second toothed grooves 65; an arc-shaped block 66 is fixed on one side of the second grate plate 61 that extends into the groove of the first grate plate 6; a rotating shaft 67 is mounted on the arc-shaped block 66, and both sides of the rotating shaft 67 extend into the slides 64; gear teeth 68 are fixed on both sides of the rotating shaft 67, and the gear teeth 68 mesh with the second toothed grooves 65; and a lever plate 69 is fixed on both sides of the arc-shaped block 66 on the rotating shaft 67.

[0043] Because the first grate plate 6 and the second grate plate 61 are arranged in a cross pattern and the openings of their troughs correspond to each other, after the material is initially screened by the support roller 21, it is conveyed to the top of the first grate plate 6 and the second grate plate 61. The broken material with a particle size smaller than the size of the trough can fall down through the aligned troughs, fall into the vertical bin below, and be discharged by the guide belt, thus completing the fine material screening. When the stone material containing the adhesive layer passes through the first grate plate 6 and the second grate plate 61, the sticky materials such as mud and fine powder are easy to adhere to the inner wall of the trough, gradually blocking the trough channel and affecting the screening efficiency and the amount of material that passes through the screen.

[0044] Specifically, each time the second inclined plate 41 of the component mechanism returns to its initial position, the second hydraulic cylinder 63 is controlled to retract. The extension rod of the second hydraulic cylinder 63 pulls the inverted J-shaped plate 62 to slide along the side wall of the hopper 2, thereby driving the second grate plate 61 to move towards the first grate plate 6, so that the second grate plate 61 gradually inserts into the notch of the first grate plate 6, and at the same time, the first grate plate 6 gradually inserts into the notch of the second grate plate 61. Through the relative cross movement of the two grates, the sticky material adhering to the inner wall of the trough of the first grate plate 6 and the second grate plate 61 can be scraped and cleaned, breaking the adhesion blockage in the trough.

[0045] More specifically, as the second grate 61 gradually inserts into the first grate 6, the arc-shaped block 66 extending into the groove of the first grate 6 moves together with the second grate 61; slides 64 are provided on both sides of the groove of the first grate 6, and evenly arranged second toothed grooves 65 are provided on the bottom surface of the slides 64. Since the gear teeth 68 fixed on both sides of the rotating rod 67 are engaged with the second toothed grooves 65 in the slides 64, the linear movement of the arc-shaped block 66 will be converted into the counterclockwise rotation of the rotating rod 67 in the arc-shaped block 66, thereby driving the levers 69 on the rotating rods 67 on both sides of the arc-shaped block 66 to rotate counterclockwise synchronously; the rotating levers 69 can act on the adhesive layer in the groove, push the adhesive layer downward, and push the sticky material adhering to the groove downward to fall off.

[0046] Furthermore, the relative cross-movement of the first grate plate 6 and the second grate plate 61 can scrape and clean the sticky adhering substances on the inner wall of the trough, alleviating the problem of mud and fine powder clogging the trough, which is conducive to maintaining the smooth flow of the pre-screening channel and reducing the probability of the trough being completely blocked. At the same time, through the meshing transmission of the gear tooth 68 and the second tooth groove 65, the linear reciprocating motion of the grate plate is converted into the rotational motion of the pusher plate 69, which can actively push the adhering layer deep in the trough to fall off. Compared with the simple grate plate cross-movement cleaning, it can further improve the cleaning effect on deep adhering blockage.

[0047] As an embodiment of the present invention; a driven plate 7 is fixed to the top of the two inverted J-shaped plates 62; a vertical plate 71 is fixed to the middle of the driven plate 7, and the vertical plate 71 is in contact with the side wall of the hopper 2; a vertical plate 8 is provided at the end of the driven plate 7, and the bottom of the vertical plate 8 rotates on the hopper 2; a convex groove 81 is opened on the side of the vertical plate 8 facing the driven plate 7; a convex block 82 slides in the convex groove 81; a portion of the convex block 82 extends out of the convex groove 81; two rotating blocks 72 are fixed on the driven plate 7, and the side of the convex block 82 extending out of the convex groove 81 rotates between the two rotating blocks 72.

[0048] In this embodiment, a sliding groove 83 is provided in the upright plate 8, and the sliding groove 83 is not connected with the convex groove 81, and the sliding groove 83 is in contact with the side wall of the hopper 2. A sliding plate 84 slides within the chute 83, extending to the top of the upright plate 8, and is in contact with the side wall of the hopper 2. A sliding shaft 85 is fixed to the top of the sliding plate 84. An arc-shaped sliding frame 86 is fixed to the top of the hopper 2, and the sliding shaft 85 slides within the arc-shaped sliding frame 86. A limiting groove 87 is provided on the hopper 2, and the limiting groove 87 is connected to the end of the arc-shaped sliding frame 86. The limiting groove 87 is spaced from the second inclined plate 41 and is parallel to it.

[0049] As the second hydraulic cylinder 63 drives the inverted J-shaped plate 62 to move along the side wall of the hopper 2, the driven plate 7 fixed to the top of the two inverted J-shaped plates 62 moves synchronously toward the support roller 21. The vertical plate 71 fixed in the middle of the driven plate 7 moves along with it, and the surface of the vertical plate 71 is in contact with the side wall of the hopper 2. During the movement of the inverted J-shaped plate 62 and the vertical plate 71, the side walls of the hopper 2 corresponding to the first grate plate 6 and the second grate plate 61 can be scraped to remove the adhesive layer attached to the side wall of the area.

[0050] Specifically, during the movement of the driven plate 7 along the inverted J-shaped plate 62, the two rotating blocks 72 push the convex block 82 to move synchronously. The convex block 82 then pushes the vertical plate 8 to rotate counterclockwise around its bottom hinge point. The vertical plate 8 drives the convex block 82 to rotate along the rotating block 72. During the rotation, the convex block 82 can slide along the convex groove 81, so that the convex block 82 can adapt to the position of the rotating block 72, ensuring smooth transmission without jamming. During the rotation of the vertical plate 8, the vertical plate 8 passes along the side wall of the hopper 2 above the support roller 21, which can scrape the side wall of the hopper 2 in this area and remove the adhesive layer attached to the side wall. When the vertical plate 8 rotates to the horizontal position, if the driven plate 7 continues to move forward, the driven plate 7 can drive the convex block 82 to continue sliding in the convex groove 81 through the rotating block 72, avoiding the rotation limit of the vertical plate 8 which would prevent the driven plate 7 from continuing to move.

[0051] More specifically, since a sliding plate 84 is slidably disposed within the slide groove 83, and a sliding shaft 85 fixed at the top of the sliding plate 84 slides within the arc-shaped slide frame 86; during the rotation of the upright plate 8 around the bottom hinge point, it will cause the sliding plate 84 and the sliding shaft 85 to slide together along the arc-shaped trajectory of the arc-shaped slide frame 86; when the arc-shaped slide frame 86 reaches its end during rotation, the sliding shaft 85 slides from the end of the arc-shaped slide frame 86 into the limiting groove 87, and continues to slide along the limiting groove 87; during the sliding of the sliding shaft 85 along the limiting groove 87, The slide plate 84 will be gradually pulled out from the groove 83 of the upright plate 8. After being pulled out, the slide plate 84 will still be in contact with the side wall of the hopper 2, and can continuously scrape and clean the side wall of the hopper 2. Since the limiting groove 87 and the second inclined plate 41 are parallel to each other, as the slide plate 84 moves along the limiting groove 87 with the sliding shaft 85, the gradually extended slide plate 84 can expand the scraping area of ​​the side wall of the hopper 2, further reduce the retention range of the adhesive layer on the side wall, and improve the overall cleaning effect of the side wall of the hopper 2.

[0052] Furthermore, the transmission structure between the convex block 82 and the vertical plate 8 drives the vertical plate 8 to rotate, cleaning the side wall area above the support roller 21. This removes sticky materials adhering to the side wall, reducing the risk of long-term accumulation and hardening of the adhesive layer, making it difficult to clean manually. At the same time, when the sliding shaft 85 moves along the limiting groove 87, it gradually pulls the sliding plate 84 out of the sliding groove 83 and extends the coverage area of ​​the side wall scraping, further improving the cleaning coverage of the side wall of the hopper 2 and reducing the dead corner area of ​​the adhesive layer residue.

[0053] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1The orientations or positional relationships shown are for the convenience of describing the present invention and simplifying the description only, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be construed as indicating or implying relative importance.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A jaw crusher, comprising a frame (1) and a tracked walking assembly (11) at the bottom of the frame (1); a feeding mechanism (12) is installed on the frame (1); the feeding mechanism (12) is connected to the crushing host (13); a conveyor belt (14) is provided at the bottom of the crushing host (13), and an iron removal assembly (15) is installed above the conveyor belt (14); Its features are, The feeding mechanism (12) includes a hopper (2); a mounting frame is installed at the bottom of the hopper (2), and a vibration motor is installed on the mounting frame; The hopper (2) is provided with evenly arranged support rollers (21); both sides of the support rollers (21) are fixed with rotating shafts, and the rotating shafts rotate on the hopper (2) and are driven by the first motor; Each of the support rollers (21) is provided with a support platform (22) at its bottom, and the top of the support platform (22) is in contact with the arc surface of the bottom of the support roller (21); the two sides of the support platform (22) are arc surfaces; The adjacent support platforms (22) fit together, and the opposite side arc surfaces of the adjacent support platforms (22) form a three-quarter circle processing cavity; Each of the processing chambers is equipped with a rotating auger (23), one of which rotates on the hopper (2) and is driven by a second motor; the other side of the auger (23) extends out of the hopper (2); a guide hopper (24) is fixed to the bottom of the side of the auger (23) extending out of the hopper (2); The support platform (22) has a first grate plate (6) on its right side, and a trough is provided on the first grate plate (6); long plates are fixed on both sides of the bottom of the first grate plate (6), and the long plates are fixed in the hopper (2); a vertical hopper is provided below the first grate plate (6).

2. The jaw crusher plant according to claim 1, characterized in that: Each of the support rollers (21) is provided with a groove (3); a top plate (31) slides in the groove (3); The top plate (31) is attached to the hopper (2) on both sides; a guide rod (32) is fixed inside the top plate (31) and the guide rod (32) extends to both sides of the top plate (31); The guide rod (32) has fan-shaped grooves (33) on both sides of the hopper (2), and the top of the fan-shaped groove (33) is arc-shaped and the bottom is V-shaped; the guide rod (32) slides in the fan-shaped groove (33).

3. The jaw crusher station according to claim 2, characterized in that: The top plate (31) extends out of the groove (3) on one side in a conical shape; The top plate (31) is in close contact with the groove (3); the two sides of the groove (3) are in close contact with the side wall of the hopper (2).

4. The jaw crusher station according to claim 3, characterized in that: The outer ring surface of the support roller (21) is an arc-shaped surface with a central diameter smaller than the diameters on both sides; the top surface of the support platform (22) is also an arc-shaped surface that fits the outer ring arc-shaped surface of the support roller (21).

5. The jaw crusher station according to claim 1, characterized in that: A weight distribution mechanism is provided above the hopper (2); the weight distribution mechanism includes a first inclined plate (4); The first inclined plate (4) is fixed inside the hopper (2); a second inclined plate (41) is provided on the right side of the first inclined plate (4), and the first inclined plate (4) and the second inclined plate (41) form a V-shape; At the top position of the second inclined plate (41), there are two limiting blocks (42) fixed inside the hopper (2), and the second inclined plate (41) passes through the two limiting blocks (42) and is slidably connected with the two limiting blocks (42); A fixing plate (43) is fixed on the side of the second inclined plate (41) close to the first inclined plate (4); a first hydraulic cylinder (44) is fixed on the limiting block (42) located below the second inclined plate (41), and the extension rod of the first hydraulic cylinder (44) is fixed on the fixing plate (43).

6. The jaw crusher station according to claim 5, characterized in that: A push plate (5) is fixed on the surface of the first inclined plate (4); guide plates (51) are fixed on both sides of the push plate (5); A fixing block (52) is fixed above the two guide plates (51), and the guide plate (51) is restricted between the fixing block (52) and the first inclined plate (4), and the guide plate (51) is slidably connected to the fixing block (52) and the first inclined plate (4); The second inclined plate (41) has two limiting plates (53) on both sides, and the two sides of the second inclined plate (41) slide within the limiting plates (53); A protective chamber is provided between the guide plate (51) and the second inclined plate (41); two upright blocks (54) are provided in the protective chamber, and the upright blocks (54) are fixed on the hopper (2); a rotating shaft is provided on each of the two upright blocks (54), and a gear (55) is fixed on the side of the rotating shaft facing the guide plate (51) and the inclined plate, and the two gears (55) are located close to the guide plate (51) and the second inclined plate (41) respectively; A sprocket is fixed on the side of the rotating shaft away from the guide plate (51) and the second inclined plate (41), and the two sprockets are connected by a chain (56). The two guide plates (51) have a first toothed groove (57) on their opposite sides, and the first toothed groove (57) is a through-type design; the second inclined plate (41) also has a first toothed groove (57) on both sides, and the first toothed groove (57) is a through-type design, and the first toothed groove (57) is located inside the limiting plate (53); The two gears (55) respectively mesh with the adjacent first tooth groove (57).

7. The jaw crusher plant according to claim 1, characterized in that: A second grate (61) is provided on the right side of the first grate (6); the openings of the troughs on the first grate (6) and the second grate (61) correspond to each other, and the second grate (61) and the first grate (6) are arranged crosswise; The second grate plate (61) has inverted J-shaped plates (62) fixed on both sides of its end, and the inverted J-shaped plates (62) slide on the side wall of the hopper (2); a second hydraulic cylinder (63) is installed on the opposite side of the two inverted J-shaped plates (62), and the extension rod of the second hydraulic cylinder (63) is fixed on the inverted J-shaped plates (62).

8. The jaw crusher plant according to claim 7, characterized in that: The first grate plate (6) has slides (64) on both sides of the trough, and the bottom surface of the slides (64) has evenly arranged second toothed grooves (65); An arc-shaped block (66) is fixed to one side of the second grate plate (6) extending into the groove of the first grate plate (6); a rotating shaft (67) is mounted on the arc-shaped block (66), and the two sides of the rotating shaft (67) extend into the slide rail (64); gear teeth (68) are fixed on both sides of the rotating shaft (67), and the gear teeth (68) mesh with the second tooth groove (65); a lever plate (69) is fixed on both sides of the arc-shaped block (66) on the rotating shaft (67).

9. The jaw crusher plant according to claim 8, characterized in that: A driven plate (7) is fixed to the top of the two inverted J-shaped plates (62); a vertical plate (71) is fixed to the middle of the driven plate (7), and the vertical plate (71) is in contact with the side wall of the hopper (2); The driven plate (7) is provided with a vertical plate (8) at its end, and the bottom of the vertical plate (8) rotates on the hopper (2); the vertical plate (8) is provided with a convex groove (81) on the side facing the driven plate (7); a convex block (82) slides in the convex groove (81); The convex block (82) extends into a convex groove (81); two rotating blocks (72) are fixed on the driven plate (7), and one side of the convex block (82) extending into the convex groove (81) rotates between the two rotating blocks (72).

10. The jaw crusher station according to claim 9, characterized in that: The vertical plate (8) is provided with a sliding groove (83), and the sliding groove (83) is not connected with the convex groove (81), and the sliding groove (83) is in contact with the side wall of the hopper (2); A sliding plate (84) slides within the chute (83), and the sliding plate (84) extends to the top of the upright plate (8), and the sliding plate (84) is in contact with the side wall of the hopper (2); a sliding shaft (85) is fixed to the top of the sliding plate (84); The top of the hopper (2) is fixed with an arc-shaped sliding frame (86), and the sliding shaft (85) slides in the arc-shaped sliding frame (86); a limiting groove (87) is opened on the hopper (2), and the limiting groove (87) is connected to the end of the arc-shaped sliding frame (86); the limiting groove (87) and the second inclined plate (41) are spaced apart and parallel to each other.

Images